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design</title> <meta name="description" content="Search results for: section design"> <meta name="keywords" content="section design"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none navbar-toggler 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id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="section design"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 13645</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: section design</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">13645</span> Examples of RC Design with Eurocode2</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Carla%20Ferreira">Carla Ferreira</a>, <a href="https://publications.waset.org/abstracts/search?q=Helena%20Barros"> Helena Barros</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The paper termed “Design of reinforced concrete with Eurocode 2” presents the theory regarding the design of reinforced concrete sections and the development of the tables and abacuses to verify the concrete section to the ultimate limit and service limit states. This paper is a complement of it, showing how to use the previous tools. Different numerical results are shown, proving the capability of the methodology. When a section of a beam is already chosen, the computer program presents the reinforcing steel in many locations along the structure, and it is the engineer´s task to choose the layout available for the construction, considering the maximum regular kind of reinforcing bars. There are many computer programs available for this task, but the interest of the present kind of tools is the fast and easy way of making the design and choose the optimal solution. Another application of these design tools is in the definition of the section dimensions, in a way that when stresses are evaluated, the final design is acceptable. In the design offices, these are considered by the engineers a very quick and useful way of designing reinforced concrete sections, employing variable strength concrete and higher steel classes. Examples of nonlinear analyses and redistribution of the bending moment will be considered, according to the Eurocode 2 recommendations, for sections under bending moment and axial forces. Examples of the evaluation of the service limit state will be presented. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=design%20examples" title="design examples">design examples</a>, <a href="https://publications.waset.org/abstracts/search?q=eurocode%202" title=" eurocode 2"> eurocode 2</a>, <a href="https://publications.waset.org/abstracts/search?q=reinforced%20concrete" title=" reinforced concrete"> reinforced concrete</a>, <a href="https://publications.waset.org/abstracts/search?q=section%20design" title=" section design"> section design</a> </p> <a href="https://publications.waset.org/abstracts/174988/examples-of-rc-design-with-eurocode2" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/174988.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">72</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">13644</span> Motor Controller Implementation Using Model Based Design</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Cau%20Tran">Cau Tran</a>, <a href="https://publications.waset.org/abstracts/search?q=Tu%20Nguyen"> Tu Nguyen</a>, <a href="https://publications.waset.org/abstracts/search?q=Tien%20Pham"> Tien Pham</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Model-based design (MBD) is a mathematical and visual technique for addressing design issues in the fields of communications, signal processing, and complicated control systems. It is utilized in several automotive, aerospace, industrial, and motion control applications. Virtual models are at the center of the software development process with model based design. A method used in the creation of embedded software is model-based design. In this study, the LAT motor is modeled in a simulation environment, and the LAT motor control is designed with a cascade structure, a speed and current control loop, and a controller that is used in the next part. A PID structure serves as this controller. Based on techniques and motor parameters that match the design goals, the PID controller is created for the model using traditional design principles. The MBD approach will be used to build embedded software for motor control. The paper will be divided into three distinct sections. The first section will introduce the design process and the benefits and drawbacks of the MBD technique. The design of control software for LAT motors will be the main topic of the next section. The experiment's results are the subject of the last section. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=model%20based%20design" title="model based design">model based design</a>, <a href="https://publications.waset.org/abstracts/search?q=limited%20angle%20torque" title=" limited angle torque"> limited angle torque</a>, <a href="https://publications.waset.org/abstracts/search?q=intellectual%20property%20core" title=" intellectual property core"> intellectual property core</a>, <a href="https://publications.waset.org/abstracts/search?q=hardware%20description%20language" title=" hardware description language"> hardware description language</a>, <a href="https://publications.waset.org/abstracts/search?q=controller%20area%20network" title=" controller area network"> controller area network</a>, <a href="https://publications.waset.org/abstracts/search?q=user%20datagram%20protocol" title=" user datagram protocol"> user datagram protocol</a> </p> <a href="https://publications.waset.org/abstracts/159211/motor-controller-implementation-using-model-based-design" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/159211.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">94</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">13643</span> The Effect of Skin to Skin Contact Immediately to Maternal Breastfeeding Self-Efficacy after Cesarean Section</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=D.%20Triana">D. Triana</a>, <a href="https://publications.waset.org/abstracts/search?q=I.%20N.%20Rachmawati"> I. N. Rachmawati</a>, <a href="https://publications.waset.org/abstracts/search?q=L.%20Sabri"> L. Sabri</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Maternal breastfeeding self-efficacy is positively associated with increased duration of breastfeeding in different cultures and age groups. This study aims to determine the effect of skin-to-skin contact immediately after the cesarean section on maternal breastfeeding self-efficacy. The research design is Posttest quasi-experimental research design only with control groups involving 52 women with consecutive sampling in Langsa-Aceh. The data collected through breastfeeding Self-Efficacy Scale-Short Form. The results of Independent t-test showed a significant difference in the mean values of maternal breastfeeding self-efficacy in the intervention group and the control group (59.00 ± 6.54; 49.62 ± 7.78; p= 0.001). Skin to skin contact is proven to affect the maternal breastfeeding self-efficacy after cesarean section significantly. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=breastfeeding%20self-efficacy" title="breastfeeding self-efficacy">breastfeeding self-efficacy</a>, <a href="https://publications.waset.org/abstracts/search?q=cesarean%20section" title=" cesarean section"> cesarean section</a>, <a href="https://publications.waset.org/abstracts/search?q=skin%20to%20skin%20contact" title=" skin to skin contact"> skin to skin contact</a>, <a href="https://publications.waset.org/abstracts/search?q=immediately" title=" immediately"> immediately</a> </p> <a href="https://publications.waset.org/abstracts/32533/the-effect-of-skin-to-skin-contact-immediately-to-maternal-breastfeeding-self-efficacy-after-cesarean-section" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/32533.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">377</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">13642</span> Numerical Simulation of High Strength Steel Hot-Finished Elliptical Hollow Section Subjected to Uniaxial Eccentric Compression</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Zhengyi%20Kong">Zhengyi Kong</a>, <a href="https://publications.waset.org/abstracts/search?q=Xueqing%20Wang"> Xueqing Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=Quang-Viet%20Vu"> Quang-Viet Vu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, the structural behavior of high strength steel (HSS) hot-finished elliptical hollow section (EHS) subjected to uniaxial eccentric compression is investigated. A finite element method for predicting the cross-section resistance of HSS hot-finished EHS is developed using ABAQUS software, which is then verified by comparison with previous experiments. The validated finite element method is employed to carry out parametric studies for investigating the structural behavior of HSS hot-finished EHS under uniaxial eccentric compression and evaluate the current design guidance for HSS hot-finished EHS. Different parameters, such as the radius of the larger and smaller outer diameter of EHS, thickness of EHS, eccentricity, and material property, are considered. The resulting data from 84 finite element models are used to obtain the relationship between the cross-section resistance of HSS hot-finished EHS and cross-section slenderness. It is concluded that current design provisions, such as EN 1993-1-1, BS 5950-1, AS4100, and Gardner et al., are conservative for predicting the HSS hot-finished EHS under uniaxial eccentric compression. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hot-finished" title="hot-finished">hot-finished</a>, <a href="https://publications.waset.org/abstracts/search?q=elliptical%20hollow%20section" title=" elliptical hollow section"> elliptical hollow section</a>, <a href="https://publications.waset.org/abstracts/search?q=uniaxial%20eccentric%20compression" title=" uniaxial eccentric compression"> uniaxial eccentric compression</a>, <a href="https://publications.waset.org/abstracts/search?q=finite%20element%20method" title=" finite element method"> finite element method</a> </p> <a href="https://publications.waset.org/abstracts/129596/numerical-simulation-of-high-strength-steel-hot-finished-elliptical-hollow-section-subjected-to-uniaxial-eccentric-compression" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/129596.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">138</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">13641</span> Design of a 3-dB Directional Coupler Using Symmetric Coupled-Lines</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Cem%20%C3%87inda%C5%9F">Cem Çindaş</a>, <a href="https://publications.waset.org/abstracts/search?q=Serkan%20%C5%9Eim%C5%9Fek"> Serkan Şimşek</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, the study and design of a 3-dB 90° directional coupler operating in the S-band is proposed. The coupler employs symmetrical multi-section coupled lines designed in a stripline technique. Design is realized in AWR Design Environment and CST Microwave Studio. Using these two programs played a key role in attaining outcomes swiftly and precisely. The simulation results show that the coupler maintains amplitude consistency within ± 0.3 dB, isolation and reflection losses better than 16 dB, and phase difference between two output ports of 88º±0.6˚ in the 1.7 – 4.35 GHz range. This simulation results indicate an improvement is achieved in fractional bandwidth (FBW) performance around the center frequency of f0 = 3 GHz. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=coupled%20stripline" title="coupled stripline">coupled stripline</a>, <a href="https://publications.waset.org/abstracts/search?q=directional%20coupler" title=" directional coupler"> directional coupler</a>, <a href="https://publications.waset.org/abstracts/search?q=multi-section%20coupler" title=" multi-section coupler"> multi-section coupler</a>, <a href="https://publications.waset.org/abstracts/search?q=symmetrical%20coupler" title=" symmetrical coupler"> symmetrical coupler</a> </p> <a href="https://publications.waset.org/abstracts/177698/design-of-a-3-db-directional-coupler-using-symmetric-coupled-lines" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/177698.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">87</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">13640</span> Cold Formed Steel Sections: Analysis, Design and Applications</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20Saha%20Chaudhuri">A. Saha Chaudhuri</a>, <a href="https://publications.waset.org/abstracts/search?q=D.%20Sarkar"> D. Sarkar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In steel construction, there are two families of structural members. One is hot rolled steel and another is cold formed steel. Cold formed steel section includes steel sheet, strip, plate or flat bar. Cold formed steel section is manufactured in roll forming machine by press brake or bending operation. Cold formed steel (CFS), also known as Light Gauge Steel (LGS). As cold formed steel is a sustainable material, it is widely used in green building. Cold formed steel can be recycled and reused with no degradation in structural properties. Cold formed steel structures can earn credits for green building ratings such as LEED and similar programs. Cold formed steel construction satisfies international demand for better, more efficient and affordable buildings. Cold formed steel sections are used in building, car body, railway coach, various types of equipment, storage rack, grain bin, highway product, transmission tower, transmission pole, drainage facility, bridge construction etc. Various shapes of cold formed steel sections are available, such as C section, Z section, I section, T section, angle section, hat section, box section, square hollow section (SHS), rectangular hollow section (RHS), circular hollow section (CHS) etc. In building construction cold formed steel is used as eave strut, purlin, girt, stud, header, floor joist, brace, diaphragm and covering for roof, wall and floor. Cold formed steel has high strength to weight ratio and high stiffness. Cold formed steel is non shrinking and non creeping at ambient temperature, it is termite proof and rot proof. CFS is durable, dimensionally stable and non combustible material. CFS is economical in transportation and handling. At present days cold formed steel becomes a competitive building material. In this paper all these applications related present research work are described and how the CFS can be used as blast resistant structural system that is examined. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cold%20form%20steel%20sections" title="cold form steel sections">cold form steel sections</a>, <a href="https://publications.waset.org/abstracts/search?q=applications" title=" applications"> applications</a>, <a href="https://publications.waset.org/abstracts/search?q=present%20research%20review" title=" present research review"> present research review</a>, <a href="https://publications.waset.org/abstracts/search?q=blast%20resistant%20design" title=" blast resistant design"> blast resistant design</a> </p> <a href="https://publications.waset.org/abstracts/103415/cold-formed-steel-sections-analysis-design-and-applications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/103415.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">150</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">13639</span> Behavior Study of Concrete-Filled Thin-Walled Square Hollow Steel Stub Columns</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mostefa%20Mimoune">Mostefa Mimoune</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Test results on concrete-filled steel tubular stub columns under axial compression are presented. The study was mainly focused on square hollow section SHS columns; 27 columns were tested. The main experimental parameters considered were the thickness of the tube, columns length and cross section sizes. Existing design codes and theoretical model were used to predict load-carrying capacities of composite section to compare the accuracy of the predictions by using the recommendations of DTR-BC (Algerian code), CSA (Canadian standard), AIJ, EC4, DBJ, AISC, BS and EC4. Experimental results indicate that the studied parameters have significant influence on both the compressive load capacity and the column failure mode. All codes used in the comparison, provide higher resistance compared to those of tests. Equation method has been suggested to evaluate the axial capacity of the composite section seem to be in agreement with tests. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=axial%20loading" title="axial loading">axial loading</a>, <a href="https://publications.waset.org/abstracts/search?q=composite%20section" title=" composite section"> composite section</a>, <a href="https://publications.waset.org/abstracts/search?q=concrete-filled%20steel%20tubes" title=" concrete-filled steel tubes"> concrete-filled steel tubes</a>, <a href="https://publications.waset.org/abstracts/search?q=square%20hollow%20section" title=" square hollow section "> square hollow section </a> </p> <a href="https://publications.waset.org/abstracts/15413/behavior-study-of-concrete-filled-thin-walled-square-hollow-steel-stub-columns" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/15413.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">378</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">13638</span> Development of Underactuated Robot Hand Using Cross Section Deformation Spring</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Naoki%20Saito">Naoki Saito</a>, <a href="https://publications.waset.org/abstracts/search?q=Daisuke%20Kon"> Daisuke Kon</a>, <a href="https://publications.waset.org/abstracts/search?q=Toshiyuki%20Sato"> Toshiyuki Sato</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper describes an underactuated robot hand operated by low-power actuators. It can grasp objects of various shapes using easy operations. This hand is suitable for use as a lightweight prosthetic hand that can grasp various objects using few input channels. To realize operations using a low-power actuator, a cross section deformation spring is proposed. The design procedure of the underactuated robot finger is proposed to realize an adaptive grasping movement. The validity of this mechanism and design procedure are confirmed through an object grasping experiment. Results demonstrate the effectiveness of a cross section deformation spring in reducing the actuator power. Moreover, adaptive grasping movement is realized by an easy operation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=robot%20hand" title="robot hand">robot hand</a>, <a href="https://publications.waset.org/abstracts/search?q=underactuated%20mechanism" title=" underactuated mechanism"> underactuated mechanism</a>, <a href="https://publications.waset.org/abstracts/search?q=cross-section%20deformation%20spring" title=" cross-section deformation spring"> cross-section deformation spring</a>, <a href="https://publications.waset.org/abstracts/search?q=prosthetic%20hand" title=" prosthetic hand"> prosthetic hand</a> </p> <a href="https://publications.waset.org/abstracts/1439/development-of-underactuated-robot-hand-using-cross-section-deformation-spring" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/1439.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">372</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">13637</span> A Study on Traction Motor Design for Obtaining the Maximum Traction Force of Tram-Train</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Geochul%20Jeong">Geochul Jeong</a>, <a href="https://publications.waset.org/abstracts/search?q=In-Gun%20Kim"> In-Gun Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Hyun-Seok%20Hong"> Hyun-Seok Hong</a>, <a href="https://publications.waset.org/abstracts/search?q=Dong-Woo%20Kang"> Dong-Woo Kang</a>, <a href="https://publications.waset.org/abstracts/search?q=Ju%20Lee"> Ju Lee</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study is about IPMSM design for obtaining the maximum traction force of Tram-Train. Tram-Train is a Tram and Train-combined railway vehicles, which operates at a maximum speed of 70km/h in the city section (Tram section) and at a maximum speed of 150km/h in the out-of-city section (Train section). For this reason, tram-train was designed to be an IPMSM (Interior Permanent Synchronous Motor) with a wide range of speed variation. IPMSM’s magnetic path varies depending on the shape of rotor and in this case, the power characteristics are different in the constant torque area and the flux weakening area. Therefore, this study suggests a method to improve Tram-Train’s traction force, based on the relationship between magnetic torque and reluctance torque. The suggested method was applied through IPMSM rotor shape design and electromagnetic field finite element method was conducted to verify the validity of the suggested method. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=tram-train" title="tram-train">tram-train</a>, <a href="https://publications.waset.org/abstracts/search?q=traction%20motor" title=" traction motor"> traction motor</a>, <a href="https://publications.waset.org/abstracts/search?q=IPMSM" title=" IPMSM"> IPMSM</a>, <a href="https://publications.waset.org/abstracts/search?q=synchronous%20motor" title=" synchronous motor"> synchronous motor</a>, <a href="https://publications.waset.org/abstracts/search?q=railway%20vehicles" title=" railway vehicles"> railway vehicles</a> </p> <a href="https://publications.waset.org/abstracts/41383/a-study-on-traction-motor-design-for-obtaining-the-maximum-traction-force-of-tram-train" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/41383.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">471</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">13636</span> Transversal Connection Strengthening of T Section Beam Bridge with Brace System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chen%20Chen">Chen Chen</a> </p> <p class="card-text"><strong>Abstract:</strong></p> T section beam bridge has been widely used in China as it is low cost and easy to erect. Some of T section beam bridges only have end diagrams and the adjacent girders are connected by wet-joint along span, which leads to the damage of transversal connection becomes a serious problem in operation and maintenance. This paper presents a brace system to strengthen the transversal connection of T section beam bridge. The strengthening effect was discussed by experiments and finite element analysis. The results show that the proposed brace system can improve load transfer between adjacent girders. Based on experiments and FEA model, displacement of T section beam with proposed brace system reduced 14.9% and 19.1% respectively. Integral rigidity increased 19.4% by static experiments. The transversal connection of T section beam bridge can be improved efficiently. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=experiment" title="experiment">experiment</a>, <a href="https://publications.waset.org/abstracts/search?q=strengthening" title=" strengthening"> strengthening</a>, <a href="https://publications.waset.org/abstracts/search?q=T%20section%20beam%20bridge" title=" T section beam bridge"> T section beam bridge</a>, <a href="https://publications.waset.org/abstracts/search?q=transversal%20connection" title=" transversal connection"> transversal connection</a> </p> <a href="https://publications.waset.org/abstracts/78983/transversal-connection-strengthening-of-t-section-beam-bridge-with-brace-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/78983.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">284</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">13635</span> Comparative Study of Concrete Filled Steel I-Girder Bridge with Conventional Type of Bridge </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Waheed%20Ahmad%20Safi">Waheed Ahmad Safi</a>, <a href="https://publications.waset.org/abstracts/search?q=Shunichi%20Nakamura"> Shunichi Nakamura</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdul%20Habib%20Ghaforzai"> Abdul Habib Ghaforzai</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Steel and concrete composite bridge with concrete filled steel I-girder (CFIG) was proposed and FEM and laboratory tests were conducted to analysis bending and shear behavior. The proposed form of structural steel I-section is mainly used at the intermediate support zone by placing infilled concrete into the top and bottom flanges of steel I-section to resist negative bending moment. The bending and shear tests were carried out to find out the significance of CFIG section. The result for test showing that the bending and shear capacity of proposed CFIG is at least 3 times and 2 times greater than conventional steel I-section (IG) respectively. Finite element study was also carried out to ensure the result for laboratory tests due to bending and shear behavior and load transfer behavior of proposed structural form. Finite element result result agreed the test result. A design example was carried out for a four-span continuous highway bridge and design method was established. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bending%20strength" title="bending strength">bending strength</a>, <a href="https://publications.waset.org/abstracts/search?q=concrete%20filled%20steel%20I-girder" title=" concrete filled steel I-girder"> concrete filled steel I-girder</a>, <a href="https://publications.waset.org/abstracts/search?q=steel%20I-girder" title=" steel I-girder"> steel I-girder</a>, <a href="https://publications.waset.org/abstracts/search?q=FEM" title=" FEM"> FEM</a>, <a href="https://publications.waset.org/abstracts/search?q=limit%20states%20design%20and%20shear%20strength" title=" limit states design and shear strength"> limit states design and shear strength</a> </p> <a href="https://publications.waset.org/abstracts/109262/comparative-study-of-concrete-filled-steel-i-girder-bridge-with-conventional-type-of-bridge" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/109262.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">131</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">13634</span> Design and Development of Constant Stress Composite Cantilever Beam </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Vinod%20B.%20Suryawanshi">Vinod B. Suryawanshi</a>, <a href="https://publications.waset.org/abstracts/search?q=Ajit%20D.%20Kelkar"> Ajit D. Kelkar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Glass fiber reinforced composites materials, due their unique properties such as high mechanical strength to weight ratio, corrosion resistance, and impact resistance have huge potential as structural materials in automotive, construction and transportation applications. However, these properties often come at higher cost owing to complex design methods, difficult manufacturing processes and raw material cost. In this paper, a cost effective design and manufacturing approach for a composite cantilever beam structure is presented. A constant stress (variable cross section) beam concept has been used to design and optimize the shape of composite cantilever beam and thus obtain the reduction in material used. The variable cross section beam was fabricated from the glass epoxy prepregs using cost effective out of autoclave process. The drop ply technique has been successfully used to obtain the variation in the cross section along the span of the beam. In order to test the beam and validate the design, the beam was subjected to different end loads. Strain gauges were mounted along the length of the beam to obtain strains in the beam at different sections and loads. The strain values were used to calculate the flexural strength and bending stresses in the beam. The stresses obtained through strain measurements from the experiment were found to be uniform along the span of the beam, and thus validates the design. Finally, the finite element model for the constant stress beam was developed using commercial finite element simulation software. It was observed that the simulation results agreed very well with the experimental results. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=beams" title="beams">beams</a>, <a href="https://publications.waset.org/abstracts/search?q=composites" title=" composites"> composites</a>, <a href="https://publications.waset.org/abstracts/search?q=constant%20cross-section" title=" constant cross-section"> constant cross-section</a>, <a href="https://publications.waset.org/abstracts/search?q=structures" title=" structures"> structures</a> </p> <a href="https://publications.waset.org/abstracts/24230/design-and-development-of-constant-stress-composite-cantilever-beam" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/24230.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">349</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">13633</span> Design Application Procedures of 15 Storied 3D Reinforced Concrete Shear Wall-Frame Structure</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=H.%20Nikzad">H. Nikzad</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Yoshitomi"> S. Yoshitomi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents the design application and reinforcement detailing of 15 storied reinforced concrete shear wall-frame structure based on linear static analysis. Databases are generated for section sizes based on automated structural optimization method utilizing Active-set Algorithm in MATLAB platform. The design constraints of allowable section sizes, capacity criteria and seismic provisions for static loads, combination of gravity and lateral loads are checked and determined based on ASCE 7-10 documents and ACI 318-14 design provision. The result of this study illustrates the efficiency of proposed method, and is expected to provide a useful reference in designing of RC shear wall-frame structures. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=design%20constraints" title="design constraints">design constraints</a>, <a href="https://publications.waset.org/abstracts/search?q=ETABS" title=" ETABS"> ETABS</a>, <a href="https://publications.waset.org/abstracts/search?q=linear%20static%20analysis" title=" linear static analysis"> linear static analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=MATLAB" title=" MATLAB"> MATLAB</a>, <a href="https://publications.waset.org/abstracts/search?q=RC%20shear%20wall-frame%20structures" title=" RC shear wall-frame structures"> RC shear wall-frame structures</a>, <a href="https://publications.waset.org/abstracts/search?q=structural%20optimization" title=" structural optimization"> structural optimization</a> </p> <a href="https://publications.waset.org/abstracts/86851/design-application-procedures-of-15-storied-3d-reinforced-concrete-shear-wall-frame-structure" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/86851.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">261</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">13632</span> Effective Slab Width for Beam-End Flexural Strength of Composite Frames with Circular-Section Columns</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jizhi%20Zhao">Jizhi Zhao</a>, <a href="https://publications.waset.org/abstracts/search?q=Qiliang%20Zhou"> Qiliang Zhou</a>, <a href="https://publications.waset.org/abstracts/search?q=Muxuan%20Tao"> Muxuan Tao</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The calculation of the ultimate loading capacity of composite frame beams is an important step in the design of composite frame structural systems. Currently, the plastic limit theory is mainly used for this calculation in the codes adopted by many countries; however, the effective slab width recommended in most codes is based on the elastic theory, which does not accurately reflect the complex stress mechanism at the beam-column joints in the ultimate loading state. Therefore, the authors’ research group put forward the Compression-on-Column-Face mechanism and Tension-on-Transverse-Beam mechanism to explain the mechanism in the ultimate loading state. Formulae are derived for calculating the effective slab width in composite frames with rectangular/square-section columns under ultimate lateral loading. Moreover, this paper discusses the calculation method of the effective slab width for the beam-end flexural strength of composite frames with circular-section columns. The proposed design formula is suitable for exterior and interior joints. Finally, this paper compares the proposed formulae with available formulae in other literature, current design codes, and experimental results, providing the most accurate results to predict the effective slab width and ultimate loading capacity. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=composite%20frame%20structure" title="composite frame structure">composite frame structure</a>, <a href="https://publications.waset.org/abstracts/search?q=effective%20slab%20width" title=" effective slab width"> effective slab width</a>, <a href="https://publications.waset.org/abstracts/search?q=circular-section%20column" title=" circular-section column"> circular-section column</a>, <a href="https://publications.waset.org/abstracts/search?q=design%20formulae" title=" design formulae"> design formulae</a>, <a href="https://publications.waset.org/abstracts/search?q=ultimate%20loading%20capacity" title=" ultimate loading capacity"> ultimate loading capacity</a> </p> <a href="https://publications.waset.org/abstracts/125731/effective-slab-width-for-beam-end-flexural-strength-of-composite-frames-with-circular-section-columns" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/125731.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">128</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">13631</span> Challenges and Implications for Choice of Caesarian Section and Natural Birth in Pregnant Women with Pre-Eclampsia in Western Nigeria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=F.%20O.%20Adeosun">F. O. Adeosun</a>, <a href="https://publications.waset.org/abstracts/search?q=I.%20O.%20Orubuloye"> I. O. Orubuloye</a>, <a href="https://publications.waset.org/abstracts/search?q=O.%20O.%20Babalola"> O. O. Babalola</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Although caesarean section has greatly improved obstetric care throughout the world, in developing countries there is a great aversion to caesarean section. This study was carried out to examine the rate at which pregnant women with pre-eclampsia choose caesarean section over natural birth. A cross-sectional study was conducted among 500 pre-eclampsia antenatal clients seen at the States University Teaching Hospitals in the last one year. The sample selection was purposive. Information on their educational background, beliefs and attitudes were collected. Data analysis was presented using simple percentages. Out of 500 women studied, 38% favored caesarean section while 62% were against it. About 89% of them understood what caesarean section is, 57.3% of those who understood what caesarean section is will still not choose it as an option. Over 85% of the women believed caesarean section is done for medical reasons. If caesarean section is given as an option for childbirth, 38% would go for it, 29% would try religious intervention, 5.5% would not choose it because of fear, while 27.5% would reject it because they believe it is culturally wrong. Majority of respondents (85%) who favored caesarean delivery are aware of the risk attached to choosing virginal birth but go an extra mile in sourcing funds for a caesarean session while over 64% cannot afford the cost of caesarean delivery. It is therefore pertinent to encourage research in prediction methods and prevention of occurrence, since this would assist patients to plan on how to finance treatment. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=caesarean%20section" title="caesarean section">caesarean section</a>, <a href="https://publications.waset.org/abstracts/search?q=choice" title=" choice"> choice</a>, <a href="https://publications.waset.org/abstracts/search?q=cost" title=" cost"> cost</a>, <a href="https://publications.waset.org/abstracts/search?q=pre%20eclampsia" title=" pre eclampsia"> pre eclampsia</a>, <a href="https://publications.waset.org/abstracts/search?q=prediction%20methods" title=" prediction methods"> prediction methods</a> </p> <a href="https://publications.waset.org/abstracts/10741/challenges-and-implications-for-choice-of-caesarian-section-and-natural-birth-in-pregnant-women-with-pre-eclampsia-in-western-nigeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/10741.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">320</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">13630</span> Preliminary Composite Overwrapped Pressure Vessel Design for Hydrogen Storage Using Netting Analysis and American Society of Mechanical Engineers Section X</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Natasha%20Botha">Natasha Botha</a>, <a href="https://publications.waset.org/abstracts/search?q=Gary%20Corderely"> Gary Corderely</a>, <a href="https://publications.waset.org/abstracts/search?q=Helen%20M.%20Inglis"> Helen M. Inglis</a> </p> <p class="card-text"><strong>Abstract:</strong></p> With the move to cleaner energy applications the transport industry is working towards on-board hydrogen, or compressed natural gas-fuelled vehicles. A popular method for storage is to use composite overwrapped pressure vessels (COPV) because of their high strength to weight ratios. The proper design of these COPVs are according to international standards; this study aims to provide a preliminary design for a 350 Bar Type IV COPV (i.e. a polymer liner with a composite overwrap). Netting analysis, a popular analytical approach, is used as a first step to generate an initial design concept for the composite winding. This design is further improved upon by following the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel standards, Section X: Fibre-reinforced composite pressure vessels. A design program based on these two approaches is developed using Python. A numerical model of a burst test simulation is developed based on the two approaches and compared. The results indicate that the netting analysis provides a good preliminary design, while the ASME-based design is more robust and accurate as it includes a better approximation of the material behaviour. Netting analysis is an easy method to follow when considering an initial concept design for the composite winding when not all the material characteristics are known. Once these characteristics have been fully defined with experimental testing, an ASME-based design should always be followed to ensure that all designs conform to international standards and practices. Future work entails more detailed numerical testing of the design for improvement, this will include the boss design. Once finalised prototype manufacturing and experimental testing will be conducted, and the results used to improve on the COPV design. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=composite%20overwrapped%20pressure%20vessel" title="composite overwrapped pressure vessel">composite overwrapped pressure vessel</a>, <a href="https://publications.waset.org/abstracts/search?q=netting%20analysis" title=" netting analysis"> netting analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=design" title=" design"> design</a>, <a href="https://publications.waset.org/abstracts/search?q=American%20Society%20of%20Mechanical%20Engineers%20section%20x" title=" American Society of Mechanical Engineers section x"> American Society of Mechanical Engineers section x</a>, <a href="https://publications.waset.org/abstracts/search?q=fiber-reinforced" title=" fiber-reinforced"> fiber-reinforced</a>, <a href="https://publications.waset.org/abstracts/search?q=hydrogen%20storage" title=" hydrogen storage"> hydrogen storage</a> </p> <a href="https://publications.waset.org/abstracts/73706/preliminary-composite-overwrapped-pressure-vessel-design-for-hydrogen-storage-using-netting-analysis-and-american-society-of-mechanical-engineers-section-x" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/73706.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">247</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">13629</span> CAD Tool for Parametric Design modification of Yacht Hull Surface Models</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Shahroz%20Khan">Shahroz Khan</a>, <a href="https://publications.waset.org/abstracts/search?q=Erkan%20Gunpinar"> Erkan Gunpinar</a>, <a href="https://publications.waset.org/abstracts/search?q=Kemal%20Mart"> Kemal Mart</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Recently parametric design techniques became a vital concept in the field of Computer Aided Design (CAD), which helps to provide sophisticated platform to the designer in order to automate the design process in efficient time. In these techniques, design process starts by parameterizing the important features of design models (typically the key dimensions), with the implementation of design constraints. The design constraints help to retain the overall shape of the model while modifying its parameters. However, the process of initializing an appropriate number of design parameters and constraints is the crucial part of parametric design techniques, especially for complex surface models such as yacht hull. This paper introduces a method to create complex surface models in favor of parametric design techniques, a method to define the right number of parameters and respective design constraints, and a system to implement design parameters in contract to design constraints schema. For this, in our proposed approach the design process starts by dividing the yacht hull into three sections. Each section consists of different shape lines, which form the overall shape of yacht hull. The shape lines are created using Cubic Bezier Curves, which allow larger design flexibility. Design parameters and constraints are defined on the shape lines in 3D design space to facilitate the designers for better and individual handling of parameters. Afterwards, shape modifiers are developed, which allow the modification of each parameter while satisfying the respective set of criteria and design constraints. Such as, geometric continuities should be maintained between the shape lines of the three sections, fairness of the hull surfaces should be preserved after modification and while design modification, effect of a single parameter should be negligible on other parameters. The constraints are defined individually on shape lines of each section and mutually between the shape lines of two connecting sections. In order to validate and visualize design results of our shape modifiers, a real time graphic interface is created. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=design%20parameter" title="design parameter">design parameter</a>, <a href="https://publications.waset.org/abstracts/search?q=design%20constraints" title=" design constraints"> design constraints</a>, <a href="https://publications.waset.org/abstracts/search?q=shape%20modifies" title=" shape modifies"> shape modifies</a>, <a href="https://publications.waset.org/abstracts/search?q=yacht%20hull" title=" yacht hull"> yacht hull</a> </p> <a href="https://publications.waset.org/abstracts/52949/cad-tool-for-parametric-design-modification-of-yacht-hull-surface-models" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/52949.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">301</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">13628</span> Prevalence of Caesarean-Section Delivery and Its Determinants in India: Evidence for Fifth National Family Health Surveys</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Daisy%20Saikia">Daisy Saikia</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Long-term maternal health issues with Caesarean section deliveries are significant. Thus, this study aims to investigate the prevalence of caesarean section deliveries in India and to comprehend its associated predictors in light of the high caesarean section delivery rate. The study uses data from the fifth National Family Health Surveys (NFHS-5) round. Specifically, live births to women aged 15-49 in the 5 years preceding the survey. Binary logistic regression was used to check the adjusted effects of the predictor variables on caesarean section delivery. STATA/SE v16.0 was used for the data analysis with a 5% significance level. Twenty-two per cent of the live births to women were delivered by caesarean section. There was socio-economic, demographic and geographical variation in the prevalence of caesarean section delivery in India. Increasing age, body mass index, marital status, mother’s occupation and education, birth order, place of delivery, full ANC, non-tribal status, wealth quintile and region are significantly associated with caesarean section deliveries in India. Caesarean section deliveries should only be performed when essential from a medical perspective, and regions, where the rate is too high, should follow the guidelines. Additionally, it needs to be investigated whether private hospitals compel patients to have caesarean section deliveries to increase their revenue. Thus, these unnecessary deliveries must be examined immediately for safe childbirth and the wellness of both mother and child. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=caesarean%20section" title="caesarean section">caesarean section</a>, <a href="https://publications.waset.org/abstracts/search?q=delivery" title=" delivery"> delivery</a>, <a href="https://publications.waset.org/abstracts/search?q=maternal%20health" title=" maternal health"> maternal health</a>, <a href="https://publications.waset.org/abstracts/search?q=India" title=" India"> India</a> </p> <a href="https://publications.waset.org/abstracts/159892/prevalence-of-caesarean-section-delivery-and-its-determinants-in-india-evidence-for-fifth-national-family-health-surveys" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/159892.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">79</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">13627</span> Wind Turbine Powered Car Uses 3 Single Big C-Section Blades</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=K.%20Youssef">K. Youssef</a>, <a href="https://publications.waset.org/abstracts/search?q=%C3%87.%20H%C3%BCseyin"> Ç. Hüseyin</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The blades of a wind turbine have the most important job of any wind turbine component; they must capture the wind and convert it into usable mechanical energy. The objective of this work is to determine the mechanical power of single big C-section of vertical wind turbine for wind car in a two-dimensional model. The wind car has a vertical axis with 3 single big C-section blades mounted at an angle of 120°. Moreover, the three single big C-section blades are directly connected to wheels by using various kinds of links. Gears are used to convert the wind energy to mechanical energy to overcome the load exercised on the main shaft under low speed. This work allowed a comparison of drag characteristics and the mechanical power between the single big C-section blades with the previous work on 3 C-section and 3 double C-section blades for wind car. As a result obtained from the flow chart the torque and power curves of each case study are illustrated and compared with each other. In particular, drag force and torque acting on each types of blade was taken at an airflow speed of 4 m/s, and an angular velocity of 13.056 rad/s. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=blade" title="blade">blade</a>, <a href="https://publications.waset.org/abstracts/search?q=vertical%20wind%20turbine" title=" vertical wind turbine"> vertical wind turbine</a>, <a href="https://publications.waset.org/abstracts/search?q=drag%20characteristics" title=" drag characteristics"> drag characteristics</a>, <a href="https://publications.waset.org/abstracts/search?q=mechanical%20power" title=" mechanical power"> mechanical power</a> </p> <a href="https://publications.waset.org/abstracts/16229/wind-turbine-powered-car-uses-3-single-big-c-section-blades" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/16229.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">520</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">13626</span> Road Transition Design on Freeway Tunnel Entrance and Exit Based on Traffic Capacity</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Han%20Bai">Han Bai</a>, <a href="https://publications.waset.org/abstracts/search?q=Tong%20Zhang"> Tong Zhang</a>, <a href="https://publications.waset.org/abstracts/search?q=Lemei%20Yu"> Lemei Yu</a>, <a href="https://publications.waset.org/abstracts/search?q=Doudou%20Xie"> Doudou Xie</a>, <a href="https://publications.waset.org/abstracts/search?q=Liang%20Zhao"> Liang Zhao</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Road transition design on freeway tunnel entrance and exit is one vital factor in realizing smooth transition and improving traveling safety for vehicles. The goal of this research is to develop a horizontal road transition design tool that considers the transition technology of traffic capacity consistency to explore its accommodation mechanism. The influencing factors of capacity are synthesized and a modified capacity calculation model focusing on the influence of road width and lateral clearance is developed based on the VISSIM simulation to calculate the width of road transition sections. To keep the traffic capacity consistency, the right side of the transition section of the tunnel entrance and exit is divided into three parts: front arc, an intermediate transition section, and end arc; an optimization design on each transition part is conducted to improve the capacity stability and horizontal alignment transition. A case study on the Panlong Tunnel in Ji-Qing freeway illustrates the application of the tool. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=traffic%20safety" title="traffic safety">traffic safety</a>, <a href="https://publications.waset.org/abstracts/search?q=road%20transition" title=" road transition"> road transition</a>, <a href="https://publications.waset.org/abstracts/search?q=freeway%20tunnel" title=" freeway tunnel"> freeway tunnel</a>, <a href="https://publications.waset.org/abstracts/search?q=traffic%20capacity" title=" traffic capacity"> traffic capacity</a> </p> <a href="https://publications.waset.org/abstracts/88916/road-transition-design-on-freeway-tunnel-entrance-and-exit-based-on-traffic-capacity" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/88916.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">326</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">13625</span> A Future Technology: Solar Winged Autonomous Underwater Vehicle Design </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Moonesun">Mohammad Moonesun</a> </p> <p class="card-text"><strong>Abstract:</strong></p> One of the most important future technologies is related to solar Autonomous Underwater Vehicles (AUVs). In this technical paper, some aspects of solar winged AUV design are mentioned. The case study is for Arya project. The submarine movement cyclograms, weight quotas for internal equipment, hydrodynamic test results are mentioned, and some other technical notes are discussed here. The main body is the SUBOFF type and has two hydroplanes on the both sides of the body with the NACA0015 cross section. On these two hydroplanes, two 50-W photovoltaic panel will be mounted. Four small hydroplanes with the same cross section of the NACA0015 are arranged at the stern of the body at a 90° angle to each other. This test is performed in National Iranian Marine Laboratory with the length of 402 m. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=AUV" title="AUV">AUV</a>, <a href="https://publications.waset.org/abstracts/search?q=solar" title=" solar"> solar</a>, <a href="https://publications.waset.org/abstracts/search?q=model%20test" title=" model test"> model test</a>, <a href="https://publications.waset.org/abstracts/search?q=hydrodynamic%20resistance" title=" hydrodynamic resistance"> hydrodynamic resistance</a> </p> <a href="https://publications.waset.org/abstracts/126522/a-future-technology-solar-winged-autonomous-underwater-vehicle-design" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/126522.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">131</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">13624</span> Research on Evaluation Method of Urban Road Section Traffic Safety Status Based on Video Information</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Qiang%20Zhang">Qiang Zhang</a>, <a href="https://publications.waset.org/abstracts/search?q=Xiaojian%20Hu"> Xiaojian Hu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Aiming at the problem of the existing real-time evaluation methods for traffic safety status, a video information-based urban road section traffic safety status evaluation method was established, and the rapid detection method of traffic flow parameters based on video information is analyzed. The concept of the speed dispersion of the road section that affects the traffic safety state of the urban road section is proposed, and the method of evaluating the traffic safety state of the urban road section based on the speed dispersion of the road section is established. Experiments show that the proposed method can reasonably evaluate the safety status of urban roads in real-time, and the evaluation results can provide a corresponding basis for the traffic management department to formulate an effective urban road section traffic safety improvement plan. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=intelligent%20transportation%20system" title="intelligent transportation system">intelligent transportation system</a>, <a href="https://publications.waset.org/abstracts/search?q=road%20traffic%20safety" title=" road traffic safety"> road traffic safety</a>, <a href="https://publications.waset.org/abstracts/search?q=video%20information" title=" video information"> video information</a>, <a href="https://publications.waset.org/abstracts/search?q=vehicle%20speed%20dispersion" title=" vehicle speed dispersion"> vehicle speed dispersion</a> </p> <a href="https://publications.waset.org/abstracts/138781/research-on-evaluation-method-of-urban-road-section-traffic-safety-status-based-on-video-information" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/138781.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">164</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">13623</span> Research of Applicable Ground Reinforcement Method in Double-Deck Tunnel Junction</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=SKhan%20Park">SKhan Park</a>, <a href="https://publications.waset.org/abstracts/search?q=Seok%20Jin%20Lee"> Seok Jin Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Jong%20Sun%20Kim"> Jong Sun Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Jun%20Ho%20Lee"> Jun Ho Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Bong%20Chan%20Kim"> Bong Chan Kim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Because of the large economic losses caused by traffic congestion in metropolitan areas, various studies on the underground network design and construction techniques has been performed various studies in the developed countries. In Korea, it has performed a study to develop a versatile double-deck of deep tunnel model. This paper is an introduction to develop a ground reinforcement method to enable the safe tunnel construction in the weakened pillar section like as junction of tunnel. Applicable ground reinforcement method in the weakened section is proposed and it is expected to verify the method by the field application tests. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=double-deck%20tunnel" title="double-deck tunnel">double-deck tunnel</a>, <a href="https://publications.waset.org/abstracts/search?q=ground%20reinforcement" title=" ground reinforcement"> ground reinforcement</a>, <a href="https://publications.waset.org/abstracts/search?q=tunnel%20construction" title=" tunnel construction"> tunnel construction</a>, <a href="https://publications.waset.org/abstracts/search?q=weakened%20pillar%20section" title=" weakened pillar section"> weakened pillar section</a> </p> <a href="https://publications.waset.org/abstracts/37891/research-of-applicable-ground-reinforcement-method-in-double-deck-tunnel-junction" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/37891.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">409</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">13622</span> Behavior of Composite Construction Precast Reactive Powder RC Girder and Ordinary RC Deck Slab </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nameer%20A.%20Alwash">Nameer A. Alwash</a>, <a href="https://publications.waset.org/abstracts/search?q=Dunia%20A.%20Abd%20AlRadha"> Dunia A. Abd AlRadha</a>, <a href="https://publications.waset.org/abstracts/search?q=Arshed%20M.%20Aljanaby"> Arshed M. Aljanaby</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study present an experimental investigation of composite behavior for hybrid reinforced concrete slab on girder from locale material in Iraq, ordinary concrete, NC, in slab and reactive powder concrete in girder ,RPC, with steel fibers of different types(straight, hook, and mix between its), tested as simply supported span subjected under two point loading, also study effects on overall behavior such as the ultimate load, crack width and deflection. The result shows that the most suitable for production girder from RPC by using 2% micro straight steel fiber, in terms of ultimate strength and min crack width. Also the results shows that using RPC in girder of composite section increased ultimate load by 79% when compared with same section made of NC, and increased the shear strength which erased the effect of changing reinforcement in shear, and using RPC in girder and epoxy (in shear transfer between composite section) (meaning no stirrups) equivalent presence of shear reinforcement by 90% when compared with same section using Φ8@100 as shear reinforcement. And the result shows that changing the cross section girder shape of the composite section to inverted T, with same section area, increased the ultimate load by 5% when compared with same section of rectangular shape girder. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=reactive%20powder%20concrete" title="reactive powder concrete">reactive powder concrete</a>, <a href="https://publications.waset.org/abstracts/search?q=RPC" title=" RPC"> RPC</a>, <a href="https://publications.waset.org/abstracts/search?q=hybrid%20concrete" title=" hybrid concrete"> hybrid concrete</a>, <a href="https://publications.waset.org/abstracts/search?q=composite%20section" title=" composite section"> composite section</a>, <a href="https://publications.waset.org/abstracts/search?q=RC%20girder" title=" RC girder"> RC girder</a>, <a href="https://publications.waset.org/abstracts/search?q=RC%20slab" title=" RC slab"> RC slab</a>, <a href="https://publications.waset.org/abstracts/search?q=shear%20connecters" title=" shear connecters"> shear connecters</a>, <a href="https://publications.waset.org/abstracts/search?q=inverted%20T%20section" title=" inverted T section"> inverted T section</a>, <a href="https://publications.waset.org/abstracts/search?q=shear%20reinforcment" title=" shear reinforcment"> shear reinforcment</a>, <a href="https://publications.waset.org/abstracts/search?q=shear%20span%20over%20effective%20depth" title=" shear span over effective depth"> shear span over effective depth</a> </p> <a href="https://publications.waset.org/abstracts/23769/behavior-of-composite-construction-precast-reactive-powder-rc-girder-and-ordinary-rc-deck-slab" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/23769.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">362</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">13621</span> Optimal Seismic Design of Reinforced Concrete Shear Wall-Frame Structure </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=H.%20Nikzad">H. Nikzad</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Yoshitomi"> S. Yoshitomi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, the optimal seismic design of reinforced concrete shear wall-frame building structures was done using structural optimization. The optimal section sizes were generated through structural optimization based on linear static analysis conforming to American Concrete Institute building design code (ACI 318-14). An analytical procedure was followed to validate the accuracy of the proposed method by comparing stresses on structural members through output files of MATLAB and ETABS. In order to consider the difference of stresses in structural elements by ETABS and MATLAB, and to avoid over-stress members by ETABS, a stress constraint ratio of MATLAB to ETABS was modified and introduced for the most critical load combinations and structural members. Moreover, seismic design of the structure was done following the International Building Code (IBC 2012), American Concrete Institute Building Code (ACI 318-14) and American Society of Civil Engineering (ASCE 7-10) standards. Typical reinforcement requirements for the structural wall, beam and column were discussed and presented using ETABS structural analysis software. The placement and detailing of reinforcement of structural members were also explained and discussed. The outcomes of this study show that the modification of section sizes play a vital role in finding an optimal combination of practical section sizes. In contrast, the optimization problem with size constraints has a higher cost than that of without size constraints. Moreover, the comparison of optimization problem with that of ETABS program shown to be satisfactory and governed ACI 318-14 building design code criteria. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=structural%20optimization" title="structural optimization">structural optimization</a>, <a href="https://publications.waset.org/abstracts/search?q=seismic%20design" title=" seismic design"> seismic design</a>, <a href="https://publications.waset.org/abstracts/search?q=linear%20static%20analysis" title=" linear static analysis"> linear static analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=etabs" title=" etabs"> etabs</a>, <a href="https://publications.waset.org/abstracts/search?q=matlab" title=" matlab"> matlab</a>, <a href="https://publications.waset.org/abstracts/search?q=rc%20shear%20wall-frame%20structures" title=" rc shear wall-frame structures"> rc shear wall-frame structures</a> </p> <a href="https://publications.waset.org/abstracts/104127/optimal-seismic-design-of-reinforced-concrete-shear-wall-frame-structure" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/104127.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">173</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">13620</span> Maternal Request: A Minor but Important Contributor to the Rising Rates of Caesarean Section: A Retrospective Observational Study</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Katherine%20Russell">Katherine Russell</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Over recent decades the number of caesarean sections performed in the UK has continued to rise. The cause of the rising caesarean rate (CSR) is not well understood. However, one of the most heavily cited reasons is an increase in maternal request for caesarean section. Maternal request for caesarean section (CDMR) refers to a caesarean section performed on maternal request with no medical indication. The true rate of caesarean delivery on maternal request in the UK and its contribution to the caesarean section rate is not known. Methods: To elucidate current understanding of the cause of the rising caesarean section rate and the role of CDMR we conducted a systematic review of the literature. To determine the role of CDMR in the CSR at the PRH we conducted a retrospective observational study of the caesarean section rates and CDMR from 2009-2015. Results: We demonstrated a negative correlation between rates of elective sections and CDMR over the study period (-0.123). On average, there were more elective sections performed after 2011 (15.10% of all deliveries) than before 2011 (12.41% of all deliveries); this difference was statistically significant (p = < 0.001). There were more cases of CDMR after 2011 (1.39% of all deliveries) than before 2011 (0.85% of all deliveries). The difference in average rates of CDMR before and after 2011 was statistically significant (p ≤ 0.001). Conclusions: CDMR is only a minor contributor to the CSR at the PRH. However, it remains an important factor because it represents a target for the reduction of the CSR that is more manageable than other, more complex and ubiquitous causes of the rising CSR. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cesarean%20section" title="cesarean section">cesarean section</a>, <a href="https://publications.waset.org/abstracts/search?q=maternal%20request%20for%20cesarean%20section" title=" maternal request for cesarean section"> maternal request for cesarean section</a>, <a href="https://publications.waset.org/abstracts/search?q=obstetrics" title=" obstetrics"> obstetrics</a>, <a href="https://publications.waset.org/abstracts/search?q=pre-natal%20health" title=" pre-natal health"> pre-natal health</a> </p> <a href="https://publications.waset.org/abstracts/111622/maternal-request-a-minor-but-important-contributor-to-the-rising-rates-of-caesarean-section-a-retrospective-observational-study" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/111622.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">99</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">13619</span> Computer-Aided Ship Design Approach for Non-Uniform Rational Basis Spline Based Ship Hull Surface Geometry</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Anu%20S.%20Nair">Anu S. Nair</a>, <a href="https://publications.waset.org/abstracts/search?q=V.%20Anantha%20Subramanian"> V. Anantha Subramanian</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents a surface development and fairing technique combining the features of a modern computer-aided design tool namely the Non-Uniform Rational Basis Spline (NURBS) with an algorithm to obtain a rapidly faired hull form. Some of the older series based designs give sectional area distribution such as in the Wageningen-Lap Series. Others such as the FORMDATA give more comprehensive offset data points. Nevertheless, this basic data still requires fairing to obtain an acceptable faired hull form. This method uses the input of sectional area distribution as an example and arrives at the faired form. Characteristic section shapes define any general ship hull form in the entrance, parallel mid-body and run regions. The method defines a minimum of control points at each section and using the Golden search method or the bisection method; the section shape converges to the one with the prescribed sectional area with a minimized error in the area fit. The section shapes combine into evolving the faired surface by NURBS and typically takes 20 iterations. The advantage of the method is that it is fast, robust and evolves the faired hull form through minimal iterations. The curvature criterion check for the hull lines shows the evolution of the smooth faired surface. The method is applicable to hull form from any parent series and the evolved form can be evaluated for hydrodynamic performance as is done in more modern design practice. The method can handle complex shape such as that of the bulbous bow. Surface patches developed fit together at their common boundaries with curvature continuity and fairness check. The development is coded in MATLAB and the example illustrates the development of the method. The most important advantage is quick time, the rapid iterative fairing of the hull form. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=computer-aided%20design" title="computer-aided design">computer-aided design</a>, <a href="https://publications.waset.org/abstracts/search?q=methodical%20series" title=" methodical series"> methodical series</a>, <a href="https://publications.waset.org/abstracts/search?q=NURBS" title=" NURBS"> NURBS</a>, <a href="https://publications.waset.org/abstracts/search?q=ship%20design" title=" ship design"> ship design</a> </p> <a href="https://publications.waset.org/abstracts/97593/computer-aided-ship-design-approach-for-non-uniform-rational-basis-spline-based-ship-hull-surface-geometry" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/97593.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">169</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">13618</span> The Alarming Caesarean-Section Delivery Rate in Addis Ababa, Ethiopia</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yibeltal%20T.%20Bayou">Yibeltal T. Bayou</a>, <a href="https://publications.waset.org/abstracts/search?q=Yohana%20S.%20Mashalla"> Yohana S. Mashalla</a>, <a href="https://publications.waset.org/abstracts/search?q=Gloria%20Thupayagale-Tshweneagae"> Gloria Thupayagale-Tshweneagae</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: According to the World Health Organization, caesarean section delivery rates of more than 10-15% caesarean section deliveries in any specific geographic region in the world are not justifiable. The aim of the study was to describe the level and analyse determinants of caesarean section delivery in Addis Ababa. Methods: Data was collected in Addis Ababa using a structured questionnaire administered to 901 women aged 15-49 years through a stratified two-stage cluster sampling technique. Binary logistic regression model was employed to identify predictors of caesarean section delivery. Results: Among the 835 women who delivered their last birth at healthcare facilities, 19.2% of them gave birth by caesarean section. About 9.0% of the caesarean section births were due to mother’s request or service provider’s influence without any medical indication. The caesarean section delivery rate was much higher than the recommended rate particularly among the non-slum residents (27.2%); clients of private healthcare facilities (41.1%); currently married women (20.6%); women with secondary (22.2%) and tertiary (33.6%) level of education; and women belonging to the highest wealth quintile household (28.2%). The majority (65.8%) of the caesarean section clients were not informed about the consequences of caesarean section delivery by service providers. The logistic regression model shows that older age (30-49), secondary and above education, non-slum residence, high-risk pregnancy and receiving adequate antenatal care were significantly positively associated with caesarean section delivery. Conclusion: Despite the unreserved effort towards achieving MDG 5 through safe skilled delivery assistance among others, the high caesarean section rate beyond the recommend limit, and the finding that caesarean sections done without medical indications were also alarming. The government and city administration should take appropriate measures before the problems become setbacks in healthcare provision. Further investigations should focus on the effect of caesarean section delivery on maternal and child health outcomes in the study area. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Addis%20Ababa" title="Addis Ababa">Addis Ababa</a>, <a href="https://publications.waset.org/abstracts/search?q=caesarean%20section" title=" caesarean section"> caesarean section</a>, <a href="https://publications.waset.org/abstracts/search?q=mode%20of%20delivery" title=" mode of delivery"> mode of delivery</a>, <a href="https://publications.waset.org/abstracts/search?q=slum%20residence" title=" slum residence "> slum residence </a> </p> <a href="https://publications.waset.org/abstracts/24771/the-alarming-caesarean-section-delivery-rate-in-addis-ababa-ethiopia" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/24771.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">404</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">13617</span> Maternal, Fetal and Neonatal Outcomes of Elective Versus Emergency Cesarean Deliveries</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Poonam%20Chouhan">Poonam Chouhan</a>, <a href="https://publications.waset.org/abstracts/search?q=Rama%20Thakur"> Rama Thakur</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20J.%20Mahajan"> R. J. Mahajan</a>, <a href="https://publications.waset.org/abstracts/search?q=Kushla%20Pathania"> Kushla Pathania</a>, <a href="https://publications.waset.org/abstracts/search?q=Mehnaz%20Kumar"> Mehnaz Kumar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Cesarean sections are associated with short- and long-term risks and affect the health of the woman, her child, and future pregnancies. We conducted a study to compare Maternal, fetal, and neonatal elective versus emergency cesarean deliveries in a tertiary care center. Material & Methods: This was a cross-sectional comparative hospital-based study conducted at Kamla Nehru State Hospital for the mother and Child, Department of Obstetrics and Gynecology, Indira Gandhi Medical College, Shimla, from June 1, 2020, to May 31ˢᵗ, 2021). A total of 200 consenting participants (100 participants undergoing elective cesarean section & 100 participants undergoing emergency cesarean section) were enrolled. The analysis was performed using the statistical package for social sciences (SPSS) version 21. Results: Antenatal complications were more in women who had an emergency cesarean section (95%) as compared to those who had an elective cesarean section (46%) (p=0.0076). 26.5% of women had fetal complications, and out of them, 92.4% (49/53) underwent emergency cesarean section. IUGR was diagnosed in 8% of women, out of them, 56.2% had elective cesarean section & 43.8% had an emergency cesarean section. Malpresentation other than breech presentation were present in 3.5% (7/200) of women. Six (3%) women had cesarean section for macrosomia. Of these, 66.7% (4/6) had elective cesarean section & 33.3% had emergency cesarean section. 23% (46/200) neonates required NICU admission, and 5% (10/200) had transient tachypnoea of new-born (TTNB). Conclusion: Our study concluded that maternal and fetal Complications of an emergency cesarean are more as compared to a planned elective cesarean. An elective cesarean conducted well in time will prevent an emergency cesarean delivery and its related complications. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=maternal" title="maternal">maternal</a>, <a href="https://publications.waset.org/abstracts/search?q=fetal" title=" fetal"> fetal</a>, <a href="https://publications.waset.org/abstracts/search?q=neonatal" title=" neonatal"> neonatal</a>, <a href="https://publications.waset.org/abstracts/search?q=complications" title=" complications"> complications</a>, <a href="https://publications.waset.org/abstracts/search?q=cesareans" title=" cesareans"> cesareans</a> </p> <a href="https://publications.waset.org/abstracts/164547/maternal-fetal-and-neonatal-outcomes-of-elective-versus-emergency-cesarean-deliveries" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/164547.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">88</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">13616</span> Experimental Behavior of Composite Shear Walls Having L Shape Steel Sections in Boundary Regions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=S.%20Bahad%C4%B1r%20Y%C3%BCksel">S. Bahadır Yüksel</a>, <a href="https://publications.waset.org/abstracts/search?q=Alptu%C4%9F%20%C3%9Cnal"> Alptuğ Ünal</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The composite shear walls (CSW) with steel encased profiles can be used as lateral-load resisting systems for buildings that require considerable large lateral-load capacity. The aim of this work is to propose the experimental work conducted on CSW having L section folded plate (L shape steel made-up sections) as longitudinal reinforcement in boundary regions. The study in this paper present the experimental test conducted on CSW having L section folded plate as longitudinal reinforcement in boundary regions. The tested 1/3 geometric scaled CSW has aspect ratio of 3.2. L-shape structural steel materials with 2L-19x57x7mm dimensions were placed in shear wall boundary zones. The seismic behavior of CSW test specimen was investigated by evaluating and interpreting the hysteresis curves, envelope curves, rigidity and consumed energy graphs of this tested element. In addition to this, the experimental results, deformation and cracking patterns were evaluated, interpreted and suggestions of the design recommendations were proposed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=shear%20wall" title="shear wall">shear wall</a>, <a href="https://publications.waset.org/abstracts/search?q=composite%20shear%20wall" title=" composite shear wall"> composite shear wall</a>, <a href="https://publications.waset.org/abstracts/search?q=boundary%20reinforcement" title=" boundary reinforcement"> boundary reinforcement</a>, <a href="https://publications.waset.org/abstracts/search?q=earthquake%20resistant%20structural%20design" title=" earthquake resistant structural design"> earthquake resistant structural design</a>, <a href="https://publications.waset.org/abstracts/search?q=L%20section" title=" L section"> L section</a> </p> <a href="https://publications.waset.org/abstracts/31684/experimental-behavior-of-composite-shear-walls-having-l-shape-steel-sections-in-boundary-regions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/31684.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">328</span> </span> </div> </div> <ul class="pagination"> <li class="page-item disabled"><span class="page-link">&lsaquo;</span></li> <li class="page-item active"><span class="page-link">1</span></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=section%20design&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=section%20design&page=3">3</a></li> <li class="page-item"><a class="page-link" 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