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</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> 945</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: vibration signatures</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">945</span> Examination of Forged Signatures Printed by Means of Fabrication in Terms of Their Relation to the Perpetrator</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Salim%20Yaren">Salim Yaren</a>, <a href="https://publications.waset.org/abstracts/search?q=Nergis%20Canturk"> Nergis Canturk</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Signatures are signs that are handwritten by person in order to confirm values such as information, amount, meaning, time and undertaking that bear on a document. It is understood that the signature of a document and the accuracy of the information on the signature is accepted and approved. Forged signatures are formed by forger without knowing and seeing original signature of person that forger will imitate and as a result of his/her effort for hiding typical characteristics of his/her own signatures. Forged signatures are often signed by starting with the initials of the first and last name or persons of the persons whose fake signature will be signed. The similarities in the signatures are completely random. Within the scope of the study, forged signatures are collected from 100 people both their original signatures and forged signatures signed referring to 5 imaginary people. These signatures are compared for 14 signature analyzing criteria by 2 signature analyzing experts except the researcher. 1 numbered analyzing expert who is 9 year experience in his/her field evaluated signatures of 39 (39%) people right and of 25 (25%) people wrong and he /she made any evaluations for signatures of 36 (36%) people. 2 numbered analyzing expert who is 16 year experienced in his/her field evaluated signatures of 49 (49%) people right and 28 (28%) people wrong and he /she made any evaluations for signatures of 23 (23%) people. Forged signatures that are signed by 24 (24%) people are matched by two analyzing experts properly, forged signatures that are signed by 8 (8%) people are matched wrongfully and made up signatures that are signed by 12 (12%) people couldn't be decided by both analyzing experts. Signatures analyzing is a subjective topic so that analyzing and comparisons take form according to education, knowledge and experience of the expert. Consequently, due to the fact that 39% success is achieved by analyzing expert who has 9 year professional experience and 49% success is achieved by analyzing expert who has 16 year professional experience, it is seen that success rate is directly proportionate to knowledge and experience of the expert. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=forensic%20signature" title="forensic signature">forensic signature</a>, <a href="https://publications.waset.org/abstracts/search?q=forensic%20signature%20analysis" title=" forensic signature analysis"> forensic signature analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=signature%20analysis%20criteria" title=" signature analysis criteria"> signature analysis criteria</a>, <a href="https://publications.waset.org/abstracts/search?q=forged%20signature" title=" forged signature"> forged signature</a> </p> <a href="https://publications.waset.org/abstracts/104765/examination-of-forged-signatures-printed-by-means-of-fabrication-in-terms-of-their-relation-to-the-perpetrator" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/104765.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">133</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">944</span> Biases in Numerically Invariant Joint Signatures </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Reza%20Aghayan">Reza Aghayan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper illustrates that numerically invariant joint signatures suffer biases in the resulting signatures. Next, we classify the arising biases as Bias Type 1 and Bias Type 2 and show how they can be removed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Euclidean%20and%20affine%20geometries" title="Euclidean and affine geometries">Euclidean and affine geometries</a>, <a href="https://publications.waset.org/abstracts/search?q=differential%20invariant%20signature%20curves" title=" differential invariant signature curves"> differential invariant signature curves</a>, <a href="https://publications.waset.org/abstracts/search?q=numerically%20invariant%20joint%20signatures" title=" numerically invariant joint signatures"> numerically invariant joint signatures</a>, <a href="https://publications.waset.org/abstracts/search?q=numerical%20analysis" title=" numerical analysis"> numerical analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=numerical%20bias" title=" numerical bias"> numerical bias</a>, <a href="https://publications.waset.org/abstracts/search?q=curve%20analysis" title=" curve analysis"> curve analysis</a> </p> <a href="https://publications.waset.org/abstracts/31756/biases-in-numerically-invariant-joint-signatures" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/31756.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">611</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">943</span> Detailed Observations on Numerically Invariant Signatures</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Reza%20Aghayan">Reza Aghayan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Numerically invariant signatures were introduced as a new paradigm of the invariant recognition for visual objects modulo a certain group of transformations. This paper shows that the current formulation suffers from noise and indeterminacy in the resulting joint group-signatures and applies the n-difference technique and the m-mean signature method to minimize their effects. In our experimental results of applying the proposed numerical scheme to generate joint group-invariant signatures, the sensitivity of some parameters such as regularity and mesh resolution used in the algorithm will also be examined. Finally, several interesting observations are made. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Euclidean%20and%20affine%20geometry" title="Euclidean and affine geometry">Euclidean and affine geometry</a>, <a href="https://publications.waset.org/abstracts/search?q=differential%20invariant%20G-signature%20curves" title=" differential invariant G-signature curves"> differential invariant G-signature curves</a>, <a href="https://publications.waset.org/abstracts/search?q=numerically%20invariant%20joint%20G-signatures" title=" numerically invariant joint G-signatures"> numerically invariant joint G-signatures</a>, <a href="https://publications.waset.org/abstracts/search?q=object%20recognition" title=" object recognition"> object recognition</a>, <a href="https://publications.waset.org/abstracts/search?q=noise" title=" noise"> noise</a>, <a href="https://publications.waset.org/abstracts/search?q=indeterminacy" title=" indeterminacy"> indeterminacy</a> </p> <a href="https://publications.waset.org/abstracts/11450/detailed-observations-on-numerically-invariant-signatures" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/11450.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">942</span> Early Installation Effect on the Machines’ Generated Vibration</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Maitham%20Al-Safwani">Maitham Al-Safwani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Motor vibration issues were analyzed by several studies. It is generally accepted that vibration issues result from poor equipment installation. We had a water injection pump tested in the factory and exceeded the pump the vibration limit. Once the pump was brought to the site, its half-size shim plates were replaced with full-size shims plates that drastically reduced the vibration. In this study, vibration data was recorded for several similar motors run at the same and different speeds. The vibration values were recorded -for two and a half hours- and the vibration readings were analyzed to determine when the readings became consistent. This was as well supported by recording the audio noises produced by some machines seeking a relationship between changes in machine noises and machine abnormalities, such as vibration. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=vibration" title="vibration">vibration</a>, <a href="https://publications.waset.org/abstracts/search?q=noise" title=" noise"> noise</a>, <a href="https://publications.waset.org/abstracts/search?q=installation" title=" installation"> installation</a>, <a href="https://publications.waset.org/abstracts/search?q=machine" title=" machine"> machine</a> </p> <a href="https://publications.waset.org/abstracts/149998/early-installation-effect-on-the-machines-generated-vibration" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/149998.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">190</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">941</span> Investigation for the Mechanism of Lateral-Torsional Coupled Vibration of the Propulsion Shaft in a Ship</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hyungsuk%20Han">Hyungsuk Han</a>, <a href="https://publications.waset.org/abstracts/search?q=Soohong%20Jeon"> Soohong Jeon</a>, <a href="https://publications.waset.org/abstracts/search?q=Chungwon%20Lee"> Chungwon Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=YongHoon%20Kim"> YongHoon Kim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> When a rubber mount and flexible coupling are installed on the main engine, high torsional vibration can occur. The root cause of this high torsional vibration can be attributed to the lateral-torsional coupled vibration of the shaft system. Therefore, the lateral-torsional coupled vibration is investigated numerically after approximating the shaft system to a three-degrees-of-freedom Jeffcott rotor. To verify that the high torsional vibration is caused by the lateral-torsional coupled vibration, a test unit that can simulate this lateral-torsional coupled vibration occurring in the propulsion shaft is developed. Performing a vibration test with the test unit, it can be experimentally verified that the high torsional vibration occurring in the propulsion shaft of the particular ship was caused by the lateral-torsional coupled vibration. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jeffcott%20rotor" title="Jeffcott rotor">Jeffcott rotor</a>, <a href="https://publications.waset.org/abstracts/search?q=lateral-torsional%20coupled%20vibration" title=" lateral-torsional coupled vibration"> lateral-torsional coupled vibration</a>, <a href="https://publications.waset.org/abstracts/search?q=propulsion%20shaft" title=" propulsion shaft"> propulsion shaft</a>, <a href="https://publications.waset.org/abstracts/search?q=stability" title=" stability"> stability</a> </p> <a href="https://publications.waset.org/abstracts/107458/investigation-for-the-mechanism-of-lateral-torsional-coupled-vibration-of-the-propulsion-shaft-in-a-ship" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/107458.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">238</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">940</span> Studies on Influence of Rub on Vibration Signature of Rotating Machines</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=K.%20N.%20Umesh">K. N. Umesh</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20S.%20Srinivasan"> K. S. Srinivasan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The influence of rotor rub was studied with respect to light rub and heavy rub conditions. The investigations were carried out for both below and above critical speeds. The time domain waveform has revealed truncation of the waveform during rubbing conditions. The quantum of rubbing has been indicated by the quantum of truncation. The orbits for light rub have indicated a single loop whereas for heavy rub multi looped orbits have been observed. In the heavy rub condition above critical speed both sub harmonics and super harmonics are exhibited. The orbit precess in a direction opposite to the direction of the rotation of the rotor. When the rubbing was created above the critical speed the orbit shape was of '8' shape indicating the rotor instability. Super-harmonics and sub-harmonics of vibration signals have been observed for light rub and heavy rub conditions and for speeds above critical. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=rotor%20rub" title="rotor rub">rotor rub</a>, <a href="https://publications.waset.org/abstracts/search?q=orbital%20analysis" title=" orbital analysis"> orbital analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=frequency%20analysis" title=" frequency analysis"> frequency analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=vibration%20signatures" title=" vibration signatures"> vibration signatures</a> </p> <a href="https://publications.waset.org/abstracts/31028/studies-on-influence-of-rub-on-vibration-signature-of-rotating-machines" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/31028.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">321</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">939</span> Experimental Study on the Floor Vibration Evaluation of Concrete Slab for Existing Buildings</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yong-Taeg%20Lee">Yong-Taeg Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Jun-Ho%20Na"> Jun-Ho Na</a>, <a href="https://publications.waset.org/abstracts/search?q=Seung-Hun%20Kim"> Seung-Hun Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Seong-Uk%20Hong"> Seong-Uk Hong</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Damages from noise and vibration are increasing every year, most of which are noises between floors in deteriorated building caused by floor impact sound. In this study, the concrete slab measured vibration impact sound for evaluation floor vibration of deteriorated buildings that fails to satisfy with the minimum thickness. In this experimental study, the vibration scale by impact sound was calibrated and compared with ISO and AIJ standard for vibration. The results show that vibration in slab with thickness used in existing building reach human perception levels. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=vibration" title="vibration">vibration</a>, <a href="https://publications.waset.org/abstracts/search?q=frequency" title=" frequency"> frequency</a>, <a href="https://publications.waset.org/abstracts/search?q=accelerometer" title=" accelerometer"> accelerometer</a>, <a href="https://publications.waset.org/abstracts/search?q=concrete%20slab" title=" concrete slab "> concrete slab </a> </p> <a href="https://publications.waset.org/abstracts/9440/experimental-study-on-the-floor-vibration-evaluation-of-concrete-slab-for-existing-buildings" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/9440.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">651</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">938</span> An Analytical Study on the Vibration Reduction Method of Railway Station Using TPU</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jinho%20Hur">Jinho Hur</a>, <a href="https://publications.waset.org/abstracts/search?q=Minjung%20Shin"> Minjung Shin</a>, <a href="https://publications.waset.org/abstracts/search?q=Heekyu%20Kim"> Heekyu Kim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In many places, new railway constructions in the city are being used to build a viaduct station to take advantage of the space below the line, for difficulty of securing railway site and disconnections of areas. The space under the viaduct has limited to use by noise and vibration. In order to use it for various purposes, reducing noise and vibration is required. The vibration reduction method for new structures is recently developed enough to use as accommodation, but the reduction method for existing structures is still far-off. In this study, it suggests vibration reduction method by filling vibration reduction material to column members which is path of structure-bone-noise from trains run. Because most of railroad stations are reinforced concrete structures. It compares vibration reduction of station applied the method and original station by FEM analysis. As a result, reduction of vibration acceleration level in bandwidth 15~30Hz can be reduced. Therefore, using this method for viaduct railroad station, vibration of station is expected to be reduced. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=structure%20borne%20noise" title="structure borne noise">structure borne noise</a>, <a href="https://publications.waset.org/abstracts/search?q=TPU" title=" TPU"> TPU</a>, <a href="https://publications.waset.org/abstracts/search?q=viaduct%20rail%20station" title=" viaduct rail station"> viaduct rail station</a>, <a href="https://publications.waset.org/abstracts/search?q=vibration%20reduction%20method" title=" vibration reduction method"> vibration reduction method</a> </p> <a href="https://publications.waset.org/abstracts/24122/an-analytical-study-on-the-vibration-reduction-method-of-railway-station-using-tpu" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/24122.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">548</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">937</span> Development of a Human Vibration Model Considering Muscles and Stiffness of Intervertebral Discs</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Young%20Nam%20Jo">Young Nam Jo</a>, <a href="https://publications.waset.org/abstracts/search?q=Moon%20Jeong%20Kang"> Moon Jeong Kang</a>, <a href="https://publications.waset.org/abstracts/search?q=Hong%20Hee%20Yoo"> Hong Hee Yoo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Most human vibration models have been modeled as a multibody system consisting of some rigid bodies and spring-dampers. These models are developed for certain posture and conditions. So, the models cannot be used in vibration analysis in various posture and conditions. The purpose of this study is to develop a human vibration model that represent human vibration characteristics under various conditions by employing a musculoskeletal model. To do this, the human vibration model is developed based on biomechanical models. In addition, muscle models are employed instead of spring-dampers. Activations of muscles are controlled by PD controller to maintain body posture under vertical vibration is applied. Each gain value of the controller is obtained to minimize the difference of apparent mass and acceleration transmissibility between experim ent and analysis by using an optimization method. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=human%20vibration%20analysis" title="human vibration analysis">human vibration analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=hill%20type%20muscle%20model" title=" hill type muscle model"> hill type muscle model</a>, <a href="https://publications.waset.org/abstracts/search?q=PD%20control" title=" PD control"> PD control</a>, <a href="https://publications.waset.org/abstracts/search?q=whole-body%20vibration" title=" whole-body vibration"> whole-body vibration</a> </p> <a href="https://publications.waset.org/abstracts/34177/development-of-a-human-vibration-model-considering-muscles-and-stiffness-of-intervertebral-discs" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/34177.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">455</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">936</span> Roles of First Electronic and Cloud Based Electronic Signature Solutions to the Global Electronic Commerce Economy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kosisochukwu%20Valentine%20Ezeagba">Kosisochukwu Valentine Ezeagba</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The global e-commerce economy has witnessed unprecedented growth, driven by technological advancements and changing consumer behaviors. Electronic signature solutions have played a pivotal role in facilitating secure, efficient, and compliant online transactions. This study examines the role of electronic signatures in e-commerce, highlighting their benefits, challenges, and future directions. The findings of this research reveal that electronic signatures enhance the security, authenticity, and integrity of online transactions while also facilitating compliance with regulatory requirements. Furthermore, electronic signatures streamline business processes, reduce paperwork, and accelerate transaction times. The study concludes that electronic signatures are a critical component of e-commerce, enabling businesses to operate with confidence and trust in the digital economy. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=global" title="global">global</a>, <a href="https://publications.waset.org/abstracts/search?q=electronic" title=" electronic"> electronic</a>, <a href="https://publications.waset.org/abstracts/search?q=signature" title=" signature"> signature</a>, <a href="https://publications.waset.org/abstracts/search?q=commerce" title=" commerce"> commerce</a> </p> <a href="https://publications.waset.org/abstracts/198873/roles-of-first-electronic-and-cloud-based-electronic-signature-solutions-to-the-global-electronic-commerce-economy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/198873.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">4</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">935</span> Tuned Mass Damper Vibration Control of Pedestrian Bridge</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Qinglin%20Shu">Qinglin Shu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Based on the analysis of the structural vibration comfort of a domestic bridge, this paper studies the vibration reduction control principle of TMD, the derivation process of design parameter optimization and how to simulate TMD in the finite element software ANSYS. The research shows that, in view of the problem that the comfort level of a bridge exceeds the limit in individual working conditions, the vibration reduction control design of the bridge can effectively reduce the vibration of the structure by using TMD. Calculations show that when the mass ratio of TMD is 0.01, the vibration reduction rate under different working conditions is more than 90%, and the dynamic displacement of the TMD mass block is within 0.01m, indicating that the design of TMD is reasonable and safe. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=pedestrian%20bridges" title="pedestrian bridges">pedestrian bridges</a>, <a href="https://publications.waset.org/abstracts/search?q=human-induced%20vibration" title=" human-induced vibration"> human-induced vibration</a>, <a href="https://publications.waset.org/abstracts/search?q=comfort" title=" comfort"> comfort</a>, <a href="https://publications.waset.org/abstracts/search?q=tuned%20mass%20dampers" title=" tuned mass dampers"> tuned mass dampers</a> </p> <a href="https://publications.waset.org/abstracts/152738/tuned-mass-damper-vibration-control-of-pedestrian-bridge" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/152738.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">120</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">934</span> Experimental Study on the Vibration Isolation Performance of Metal-Net Rubber Vibration Absorber</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Su%20Yi%20Ming">Su Yi Ming</a>, <a href="https://publications.waset.org/abstracts/search?q=Hou%20Ying"> Hou Ying</a>, <a href="https://publications.waset.org/abstracts/search?q=Zou%20Guang%20Ping"> Zou Guang Ping</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Metal-net rubber is a new dry friction damping material, compared with the traditional metal rubber, which has high mechanization degree, and the mechanical performance of metal-net rubber is more stable. Through the sine sweep experiment and random vibration experiment of metal-net rubber vibration isolator, the influence of several important factors such as the lines slope, relative density and wire diameter on the transfer rate, natural frequency and root-mean-square response acceleration of metal-net rubber vibration isolation system, were studied through the method of control variables. Also, several relevant change curves under different vibration levels were derived, and the effects of vibration level on the natural frequency and root-mean-square response acceleration were analyzed through the curves. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=metal-net%20rubber%20vibration%20isolator" title="metal-net rubber vibration isolator">metal-net rubber vibration isolator</a>, <a href="https://publications.waset.org/abstracts/search?q=relative%20density" title=" relative density"> relative density</a>, <a href="https://publications.waset.org/abstracts/search?q=vibration%20level" title=" vibration level"> vibration level</a>, <a href="https://publications.waset.org/abstracts/search?q=wire%20diameter" title=" wire diameter"> wire diameter</a> </p> <a href="https://publications.waset.org/abstracts/52749/experimental-study-on-the-vibration-isolation-performance-of-metal-net-rubber-vibration-absorber" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/52749.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">403</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">933</span> Computer Simulation Studies of Aircraft Wing Architectures on Vibration Responses</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Shengyong%20Zhang">Shengyong Zhang</a>, <a href="https://publications.waset.org/abstracts/search?q=Mike%20Mikulich"> Mike Mikulich</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Vibration is a crucial limiting consideration in the analysis and design of airplane wing structures to avoid disastrous failures due to the propagation of existing cracks in the material. In this paper, we build CAD models of aircraft wings to capture the design intent with configurations. Subsequent FEA vibration analysis is performed to study the natural vibration properties and impulsive responses of the resulting user-defined wing models. This study reveals the variations of the wing’s vibration characteristics with respect to changes in its structural configurations. Integrating CAD modelling and FEA vibration analysis enables designers to improve wing architectures for implementing design requirements in the preliminary design stage. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=aircraft%20wing" title="aircraft wing">aircraft wing</a>, <a href="https://publications.waset.org/abstracts/search?q=CAD%20modelling" title=" CAD modelling"> CAD modelling</a>, <a href="https://publications.waset.org/abstracts/search?q=FEA" title=" FEA"> FEA</a>, <a href="https://publications.waset.org/abstracts/search?q=vibration%20analysis" title=" vibration analysis"> vibration analysis</a> </p> <a href="https://publications.waset.org/abstracts/139170/computer-simulation-studies-of-aircraft-wing-architectures-on-vibration-responses" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/139170.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">170</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">932</span> Research on the Torsional Vibration of a Power-Split Hybrid Powertrain Equipped with a Dual Mass Flywheel</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Xiaolin%20Tang">Xiaolin Tang</a>, <a href="https://publications.waset.org/abstracts/search?q=Wei%20Yang"> Wei Yang</a>, <a href="https://publications.waset.org/abstracts/search?q=Xiaoan%20Chen"> Xiaoan Chen</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The research described in this paper was aimed at exploring the torsional vibration characteristics of a power-split hybrid powertrain equipped with a dual mass flywheel. The dynamic equations of governing torsional vibration for this hybrid driveline are presented, and the multi-body dynamic model for the powertrain is established with the software of ADAMS. Accordingly, different parameters of dual mass flywheel are investigated by forced vibration to reduce the torsional vibration of hybrid drive train. The analysis shows that the implementation of a dual mass flywheel is an effective way to decrease the torsional vibration of the hybrid powertrain. At last, the optimal combination of parameters yielding the lowest vibration is provided. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dual%20mass%20flywheel" title="dual mass flywheel">dual mass flywheel</a>, <a href="https://publications.waset.org/abstracts/search?q=hybrid%20electric%20vehicle" title=" hybrid electric vehicle"> hybrid electric vehicle</a>, <a href="https://publications.waset.org/abstracts/search?q=torsional%20vibration" title=" torsional vibration"> torsional vibration</a>, <a href="https://publications.waset.org/abstracts/search?q=powertrain" title=" powertrain"> powertrain</a>, <a href="https://publications.waset.org/abstracts/search?q=dynamics" title=" dynamics"> dynamics</a> </p> <a href="https://publications.waset.org/abstracts/47396/research-on-the-torsional-vibration-of-a-power-split-hybrid-powertrain-equipped-with-a-dual-mass-flywheel" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/47396.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">414</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">931</span> Influence of Vibration Amplitude on Reaction Time and Drowsiness Level </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohd%20A.%20Azizan">Mohd A. Azizan</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohd%20Z.%20Zali"> Mohd Z. Zali</a> </p> <p class="card-text"><strong>Abstract:</strong></p> It is well established that exposure to vibration has an adverse effect on human health, comfort, and performance. However, there is little quantitative knowledge on performance combined with drowsiness level during vibration exposure. This paper reports a study investigating the influence of vibration amplitude on seated occupant reaction time and drowsiness level. Eighteen male volunteers were recruited for this experiment. Before commencing the experiment, total transmitted acceleration measured at interfaces between the seat pan and seatback to human body was adjusted to become 0.2 ms-2 r.m.s and 0.4 ms-2 r.m.s for each volunteer. Seated volunteers were exposed to Gaussian random vibration with frequency band 1-15 Hz at two level of amplitude (low vibration amplitude and medium vibration amplitude) for 20-minutes in separate days. For the purpose of drowsiness measurement, volunteers were asked to complete 10-minutes PVT test before and after vibration exposure and rate their subjective drowsiness by giving score using Karolinska Sleepiness Scale (KSS) before vibration, every 5-minutes interval and following 20-minutes of vibration exposure. Strong evidence of drowsiness was found as there was a significant increase in reaction time and number of lapse following exposure to vibration in both conditions. However, the effect is more apparent in medium vibration amplitude. A steady increase of drowsiness level can also be observed in KSS in all volunteers. However, no significant differences were found in KSS between low vibration amplitude and medium vibration amplitude. It is concluded that exposure to vibration has an adverse effect on human alertness level and more pronounced at higher vibration amplitude. Taken together, these findings suggest a role of vibration in promoting drowsiness, especially at higher vibration amplitude. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=drowsiness" title="drowsiness">drowsiness</a>, <a href="https://publications.waset.org/abstracts/search?q=human%20vibration" title=" human vibration"> human vibration</a>, <a href="https://publications.waset.org/abstracts/search?q=karolinska%20sleepiness%20scale" title=" karolinska sleepiness scale"> karolinska sleepiness scale</a>, <a href="https://publications.waset.org/abstracts/search?q=psychomotor%20vigilance%20test" title=" psychomotor vigilance test"> psychomotor vigilance test</a> </p> <a href="https://publications.waset.org/abstracts/66811/influence-of-vibration-amplitude-on-reaction-time-and-drowsiness-level" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/66811.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">289</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">930</span> Gaze Patterns of Skilled and Unskilled Sight Readers Focusing on the Cognitive Processes Involved in Reading Key and Time Signatures</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=J.%20F.%20Viljoen">J. F. Viljoen</a>, <a href="https://publications.waset.org/abstracts/search?q=Catherine%20Foxcroft"> Catherine Foxcroft</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Expert sight readers rely on their ability to recognize patterns in scores, their inner hearing and prediction skills in order to perform complex sight reading exercises. They also have the ability to observe deviations from expected patterns in musical scores. This increases the “Eye-hand span” (reading ahead of the point of playing) in order to process the elements in the score. The study aims to investigate the gaze patterns of expert and non-expert sight readers focusing on key and time signatures. 20 musicians were tasked with playing 12 sight reading examples composed for one hand and five examples composed for two hands to be performed on a piano keyboard. These examples were composed in different keys and time signatures and included accidentals and changes of time signature to test this theory. Results showed that the experts fixate more and for longer on key and time signatures as well as deviations in examples for two hands than the non-expert group. The inverse was true for the examples for one hand, where expert sight readers showed fewer and shorter fixations on key and time signatures as well as deviations. This seems to suggest that experts focus more on the key and time signatures as well as deviations in complex scores to facilitate sight reading. The examples written for one appeared to be too easy for the expert sight readers, compromising gaze patterns. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cognition" title="cognition">cognition</a>, <a href="https://publications.waset.org/abstracts/search?q=eye%20tracking" title=" eye tracking"> eye tracking</a>, <a href="https://publications.waset.org/abstracts/search?q=musical%20notation" title=" musical notation"> musical notation</a>, <a href="https://publications.waset.org/abstracts/search?q=sight%20reading" title=" sight reading"> sight reading</a> </p> <a href="https://publications.waset.org/abstracts/115499/gaze-patterns-of-skilled-and-unskilled-sight-readers-focusing-on-the-cognitive-processes-involved-in-reading-key-and-time-signatures" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/115499.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">145</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">929</span> A New Approach to Predicting Physical Biometrics from Behavioural Biometrics</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Raid%20R.%20O.%20Al-Nima">Raid R. O. Al-Nima</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20S.%20Dlay"> S. S. Dlay</a>, <a href="https://publications.waset.org/abstracts/search?q=W.%20L.%20Woo"> W. L. Woo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A relationship between face and signature biometrics is established in this paper. A new approach is developed to predict faces from signatures by using artificial intelligence. A multilayer perceptron (MLP) neural network is used to generate face details from features extracted from signatures, here face is the physical biometric and signatures is the behavioural biometric. The new method establishes a relationship between the two biometrics and regenerates a visible face image from the signature features. Furthermore, the performance efficiencies of our new technique are demonstrated in terms of minimum error rates compared to published work. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=behavioural%20biometric" title="behavioural biometric">behavioural biometric</a>, <a href="https://publications.waset.org/abstracts/search?q=face%20biometric" title=" face biometric"> face biometric</a>, <a href="https://publications.waset.org/abstracts/search?q=neural%20network" title=" neural network"> neural network</a>, <a href="https://publications.waset.org/abstracts/search?q=physical%20biometric" title=" physical biometric"> physical biometric</a>, <a href="https://publications.waset.org/abstracts/search?q=signature%20biometric" title=" signature biometric"> signature biometric</a> </p> <a href="https://publications.waset.org/abstracts/15556/a-new-approach-to-predicting-physical-biometrics-from-behavioural-biometrics" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/15556.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">484</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">928</span> Analysis of Detection Concealed Objects Based on Multispectral and Hyperspectral Signatures</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Kastek">M. Kastek</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Kowalski"> M. Kowalski</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Szustakowski"> M. Szustakowski</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20Polakowski"> H. Polakowski</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20Sosnowski"> T. Sosnowski</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Development of highly efficient security systems is one of the most urgent topics for science and engineering. There are many kinds of threats and many methods of prevention. It is very important to detect a threat as early as possible in order to neutralize it. One of the very challenging problems is detection of dangerous objects hidden under human’s clothing. This problem is particularly important for safety of airport passengers. In order to develop methods and algorithms to detect hidden objects it is necessary to determine the thermal signatures of such objects of interest. The laboratory measurements were conducted to determine the thermal signatures of dangerous tools hidden under various clothes in different ambient conditions. Cameras used for measurements were working in spectral range 0.6-12.5 μm An infrared imaging Fourier transform spectroradiometer was also used, working in spectral range 7.7-11.7 μm. Analysis of registered thermograms and hyperspectral datacubes has yielded the thermal signatures for two types of guns, two types of knives and home-made explosive bombs. The determined thermal signatures will be used in the development of method and algorithms of image analysis implemented in proposed monitoring systems. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hyperspectral%20detection" title="hyperspectral detection">hyperspectral detection</a>, <a href="https://publications.waset.org/abstracts/search?q=nultispectral%20detection" title=" nultispectral detection"> nultispectral detection</a>, <a href="https://publications.waset.org/abstracts/search?q=image%20processing" title=" image processing"> image processing</a>, <a href="https://publications.waset.org/abstracts/search?q=monitoring%20systems" title=" monitoring systems"> monitoring systems</a> </p> <a href="https://publications.waset.org/abstracts/7795/analysis-of-detection-concealed-objects-based-on-multispectral-and-hyperspectral-signatures" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/7795.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">354</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">927</span> Piezoelectric based Passive Vibration Control of Composite Turbine Blade using Shunt Circuit</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kouider%20Bendine">Kouider Bendine</a>, <a href="https://publications.waset.org/abstracts/search?q=Zouaoui%20Satla"> Zouaoui Satla</a>, <a href="https://publications.waset.org/abstracts/search?q=Boukhoulda%20Farouk%20Benallel"> Boukhoulda Farouk Benallel</a>, <a href="https://publications.waset.org/abstracts/search?q=Shun-Qi%20Zhang"> Shun-Qi Zhang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Turbine blades are subjected to a variety of loads, lead to an undesirable vibration. Such vibration can cause serious damages or even lead to a total failure of the blade. The present paper addresses the vibration control of turbine blade. The study aims to propose a passive vibration control using piezoelectric material. the passive control is effectuated by shunting an RL circuit to the piezoelectric patch in a parallel configuration. To this end, a Finite element model for the blade with the piezoelectric patch is implemented in ANSYS APDL. The model is then subjected to a harmonic frequency-based analysis for the case of control on and off. The results show that the proposed methodology was able to reduce blade vibration by 18%. <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=active%20piezoelectric%20vibration%20control" title=" active piezoelectric vibration control"> active piezoelectric vibration control</a>, <a href="https://publications.waset.org/abstracts/search?q=finite%20element." title=" finite element."> finite element.</a>, <a href="https://publications.waset.org/abstracts/search?q=shunt%20circuit" title=" shunt circuit"> shunt circuit</a> </p> <a href="https://publications.waset.org/abstracts/165603/piezoelectric-based-passive-vibration-control-of-composite-turbine-blade-using-shunt-circuit" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/165603.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">112</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">926</span> The Forensic Analysis of Engravers' Handwriting</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Olivia%20Rybak-Karkosz">Olivia Rybak-Karkosz</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The purpose of this paper is to present the result of scientific research using forensic handwriting analysis. It was conducted to verify the stability and lability of handwriting of engravers and check if gravers transfer their traits from handwriting to plates and other surfaces they rework. This research methodology consisted of completing representative samples of signatures of gravers written on a piece of paper using a ballpen and signatures engraved on other surfaces. The forensic handwriting analysis was conducted using the graphic-comparative method (graphic method), and all traits were analysed. The paper contains a concluding statement of the similarities and differences between the samples. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=artist%E2%80%99s%20signatures" title="artist’s signatures">artist’s signatures</a>, <a href="https://publications.waset.org/abstracts/search?q=engraving" title=" engraving"> engraving</a>, <a href="https://publications.waset.org/abstracts/search?q=forensic%20handwriting%20analysis" title=" forensic handwriting analysis"> forensic handwriting analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=graphic-comparative%20method" title=" graphic-comparative method"> graphic-comparative method</a> </p> <a href="https://publications.waset.org/abstracts/152839/the-forensic-analysis-of-engravers-handwriting" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/152839.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">112</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">925</span> Radar-Based Classification of Pedestrian and Dog Using High-Resolution Raw Range-Doppler Signatures</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=C.%20Mayr">C. Mayr</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Periya"> J. Periya</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Kariminezhad"> A. Kariminezhad</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, we developed a learning framework for the classification of vulnerable road users (VRU) by their range-Doppler signatures. The frequency-modulated continuous-wave (FMCW) radar raw data is first pre-processed to obtain robust object range-Doppler maps per coherent time interval. The complex-valued range-Doppler maps captured from our outdoor measurements are further fed into a convolutional neural network (CNN) to learn the classification. This CNN has gone through a hyperparameter optimization process for improved learning. By learning VRU range-Doppler signatures, the three classes 'pedestrian', 'dog', and 'noise' are classified with an average accuracy of almost 95%. Interestingly, this classification accuracy holds for a combined longitudinal and lateral object trajectories. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=machine%20learning" title="machine learning">machine learning</a>, <a href="https://publications.waset.org/abstracts/search?q=radar" title=" radar"> radar</a>, <a href="https://publications.waset.org/abstracts/search?q=signal%20processing" title=" signal processing"> signal processing</a>, <a href="https://publications.waset.org/abstracts/search?q=autonomous%20driving" title=" autonomous driving"> autonomous driving</a> </p> <a href="https://publications.waset.org/abstracts/139166/radar-based-classification-of-pedestrian-and-dog-using-high-resolution-raw-range-doppler-signatures" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/139166.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">253</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">924</span> Fuzzy Sliding Mode Control of a Flexible Structure for Vibration Suppression Using MFC Actuator</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jinsiang%20Shaw">Jinsiang Shaw</a>, <a href="https://publications.waset.org/abstracts/search?q=Shih-Chieh%20Tseng"> Shih-Chieh Tseng</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Active vibration control is good for low frequency excitation, with advantages of light weight and adaptability. This paper use a macro-fiber composite (MFC) actuator for vibration suppression in a cantilevered beam due to its higher output force to suppress the disturbance. A fuzzy sliding mode controller is developed and applied to this system. Experimental results illustrate that the controller and MFC actuator are very effective in attenuating the structural vibration near the first resonant freuqency. Furthermore, this controller is shown to outperform the traditional skyhook controller, with nearly 90% of the vibration suppressed at the first resonant frequency of the structure. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Fuzzy%20sliding%20mode%20controller" title="Fuzzy sliding mode controller">Fuzzy sliding mode controller</a>, <a href="https://publications.waset.org/abstracts/search?q=macro-fiber-composite%20actuator" title=" macro-fiber-composite actuator"> macro-fiber-composite actuator</a>, <a href="https://publications.waset.org/abstracts/search?q=skyhook%20controller" title=" skyhook controller"> skyhook controller</a>, <a href="https://publications.waset.org/abstracts/search?q=vibration%20suppression" title=" vibration suppression"> vibration suppression</a> </p> <a href="https://publications.waset.org/abstracts/25138/fuzzy-sliding-mode-control-of-a-flexible-structure-for-vibration-suppression-using-mfc-actuator" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/25138.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">412</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">923</span> Vibration Control of a Flexible Structure Using MFC Actuator</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jinsiang%20Shaw">Jinsiang Shaw</a>, <a href="https://publications.waset.org/abstracts/search?q=Jeng-Jie%20Huang"> Jeng-Jie Huang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Active vibration control is good for low frequency excitation, with advantages of light weight and adaptability. This paper employs a macro-fiber composite (MFC) actuator for vibration suppression in a cantilevered beam due to its higher output force to reject the disturbance. A notch filter with an adaptive tuning algorithm, the leaky filtered-X least mean square algorithm (leaky FXLMS algorithm), is developed and applied to the system. Experimental results show that the controller and MFC actuator was very effective in attenuating the structural vibration. Furthermore, this notch filter controller was compared with the traditional skyhook controller. It was found that its performance was better, with over 88% vibration suppression near the first resonant frequency of the structure. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=macro-fiber%20composite" title="macro-fiber composite">macro-fiber composite</a>, <a href="https://publications.waset.org/abstracts/search?q=notch%20filter" title=" notch filter"> notch filter</a>, <a href="https://publications.waset.org/abstracts/search?q=skyhook%20controller" title=" skyhook controller"> skyhook controller</a>, <a href="https://publications.waset.org/abstracts/search?q=vibration%20suppression" title=" vibration suppression"> vibration suppression</a> </p> <a href="https://publications.waset.org/abstracts/7710/vibration-control-of-a-flexible-structure-using-mfc-actuator" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/7710.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">468</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">922</span> Effects of Long Term Whole Body Vibration Training on Lipid Profile of Young Men </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Farshad%20Ghazalian">Farshad Ghazalian</a>, <a href="https://publications.waset.org/abstracts/search?q=Laleh%20Hakemi"> Laleh Hakemi</a>, <a href="https://publications.waset.org/abstracts/search?q=Lotfali%20Pourkazemi"> Lotfali Pourkazemi</a>, <a href="https://publications.waset.org/abstracts/search?q=Maryam%20Ameri"> Maryam Ameri</a>, <a href="https://publications.waset.org/abstracts/search?q=Seyed%20Hossein%20Alavi"> Seyed Hossein Alavi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: The use of whole body vibration (WBV) as an exercise method has rapidly increased over the last decade. The aim of this study was to evaluate long term effects of different amplitudes of whole body vibration training with progressive frequencies on lipid profile of young healthy men. Materials and methods: Thirty three healthy male students were divided randomly in three groups: high amplitude vibration group (n=11), low amplitude vibration group (n=11), and control group (n=11). The vibration training consisted of 5 week whole-body vibration 3 times a week with amplitudes 4 and 2 mm and progressive frequencies from 25 Hz with increments of 5 Hz weekly. Concentrations TG, HDL, LDL, cholesterol, and VLDL before and after 5 weeks of training were measured in plasma samples. Statistical analysis was done using one way analysis of variance. P<0.05 was considered statistically significant. Results: The most important result of the present study is finding no favorable changes of 5-week vibration training with different amplitudes on blood lipid profiles. Discussion and conclusions: It was emphasized that in vibration training there should be a relationship between intensity and volume of exercise and lipid responses in order to improve blood lipoprotein profiles. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=long%20term" title="long term">long term</a>, <a href="https://publications.waset.org/abstracts/search?q=body" title=" body"> body</a>, <a href="https://publications.waset.org/abstracts/search?q=vibration%20training" title=" vibration training"> vibration training</a>, <a href="https://publications.waset.org/abstracts/search?q=lipid" title=" lipid "> lipid </a> </p> <a href="https://publications.waset.org/abstracts/8026/effects-of-long-term-whole-body-vibration-training-on-lipid-profile-of-young-men" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/8026.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">424</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">921</span> Design and Development of the Force Plate for the Study of Driving-Point Biodynamic Responses</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Vikas%20Kumar">Vikas Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=V.%20H.%20Saran"> V. H. Saran</a>, <a href="https://publications.waset.org/abstracts/search?q=Arpit%20Mathur"> Arpit Mathur</a>, <a href="https://publications.waset.org/abstracts/search?q=Avik%20Kathuria"> Avik Kathuria</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The evaluation of biodynamic responses of the human body to whole body vibration exposure is necessary to quantify the exposure effects. A force plate model has been designed with the help of CAD software, which was investigated by performing the modal, stress and strain analysis using finite element approach in the software. The results of the modal, stress and strain analysis were under the limits for measurements of biodynamic responses to whole body vibration. The physical model of the force plate was manufactured and fixed to the vibration simulator and further used in the experimentation for the evaluation of apparent mass responses of the ten recruited subjects standing in an erect posture exposed to vertical whole body vibration. The platform was excited with sinusoidal vibration at vibration magnitude: 1.0 and 1.5 m/s2 rms at different frequency of 2, 3, 4, 5, 6, 8, 10, 12.5, 16 and 20 Hz. The results of magnitude of normalised apparent mass have shown the trend observed in the many past studies. The peak in the normalised apparent mass has been observed at 4 & 5 Hz frequency of vertical whole body vibration. The nonlinearity with respect to vibration magnitude has been also observed in the normalised apparent mass responses. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=whole%20body%20vibration" title="whole body vibration">whole body vibration</a>, <a href="https://publications.waset.org/abstracts/search?q=apparent%20mass" title=" apparent mass"> apparent mass</a>, <a href="https://publications.waset.org/abstracts/search?q=modeling" title=" modeling"> modeling</a>, <a href="https://publications.waset.org/abstracts/search?q=force%20plate" title=" force plate"> force plate</a> </p> <a href="https://publications.waset.org/abstracts/35435/design-and-development-of-the-force-plate-for-the-study-of-driving-point-biodynamic-responses" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/35435.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">421</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">920</span> Effects of Humidity and Silica Sand Particles on Vibration Generation by Friction Materials of Automotive Brake System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mostafa%20M.%20Makrahy">Mostafa M. Makrahy</a>, <a href="https://publications.waset.org/abstracts/search?q=Nouby%20M.%20Ghazaly"> Nouby M. Ghazaly</a>, <a href="https://publications.waset.org/abstracts/search?q=G.%20T.%20Abd%20el-Jaber"> G. T. Abd el-Jaber</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents the experimental study of vibration generated by friction materials of an automotive disc brake system using brake test rig. Effects of silica sand particles which are available on the road surface as an environmental condition with a size varied from 150 μm to 600 μm are evaluated. Also, the vibration of the brake disc is examined against the friction material in humidity environment conditions under variable rotational speed. The experimental results showed that the silica sand particles have significant contribution on the value of vibration amplitude which enhances with increasing the size of silica sand particles at different speed conditions. Also, it is noticed that the friction material is sensitive to humidity and the vibration magnitude increases under wet testing conditions. Moreover, it can be reported that with increasing the applied pressure and rotational speed of the braking system, the vibration amplitudes decrease for all cases. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=disc%20brake%20vibration" title="disc brake vibration">disc brake vibration</a>, <a href="https://publications.waset.org/abstracts/search?q=friction-induced%20vibration" title=" friction-induced vibration"> friction-induced vibration</a>, <a href="https://publications.waset.org/abstracts/search?q=silica%20sand%20particles" title=" silica sand particles"> silica sand particles</a>, <a href="https://publications.waset.org/abstracts/search?q=brake%20operational%20and%20environmental%20conditions" title=" brake operational and environmental conditions"> brake operational and environmental conditions</a> </p> <a href="https://publications.waset.org/abstracts/101846/effects-of-humidity-and-silica-sand-particles-on-vibration-generation-by-friction-materials-of-automotive-brake-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/101846.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">156</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">919</span> Vibration-Based Monitoring of Tensioning Stay Cables of an Extradosed Bridge</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chun-Chung%20Chen">Chun-Chung Chen</a>, <a href="https://publications.waset.org/abstracts/search?q=Bo-Han%20Lee"> Bo-Han Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Yu-Chi%20Sung"> Yu-Chi Sung</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Monitoring the status of tensioning force of stay cables is a significant issue for the assessment of structural safety of extradosed bridges. Moreover, it is known that there is a high correlation between the existing tension force and the vibration frequencies of cables. This paper presents the characteristic of frequencies of stay cables of a field extradosed bridge by using vibration-based monitoring methods. The vibration frequencies of each stay cables were measured in stages from the beginning to the completion of bridge construction. The result shows that the vibration frequency variation trend of different lengths of cables at each measured stage is different. The observed feature can help the application of the bridge long-term monitoring system and contribute to the assessment of bridge safety. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=vibration-based%20method" title="vibration-based method">vibration-based method</a>, <a href="https://publications.waset.org/abstracts/search?q=extradosed%20bridges" title=" extradosed bridges"> extradosed bridges</a>, <a href="https://publications.waset.org/abstracts/search?q=bridge%20health%20monitoring" title=" bridge health monitoring"> bridge health monitoring</a>, <a href="https://publications.waset.org/abstracts/search?q=bridge%20stay%20cables" title=" bridge stay cables"> bridge stay cables</a> </p> <a href="https://publications.waset.org/abstracts/105500/vibration-based-monitoring-of-tensioning-stay-cables-of-an-extradosed-bridge" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/105500.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">158</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">918</span> Study on the Dynamic Characteristics Change of Welded Beam Due to Vibration Aging</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=S.%20H.%20Bae">S. H. Bae</a>, <a href="https://publications.waset.org/abstracts/search?q=D.%20W.%20Cho"> D. W. Cho</a>, <a href="https://publications.waset.org/abstracts/search?q=W.%20B.%20Jeong"> W. B. Jeong</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20R.%20Cho"> J. R. Cho</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Fatigue fracture of an aluminum welded structure is a phenomenon frequently occurring from pores in a weld. In order to grasp the state of the welded structure in operation in real time, the acceleration signal of the structure is measured. At this time, the vibration characteristic of the signal according to the fatigue load is an important parameter of the state diagnosis. This paper was an experimental study on the variation of vibration characteristics of welded beams with vibration aging (especially bending vibration). First simple beams were produced according to welding conditions. Each beam was vibrated and measured beam's PSD (power spectral density) according to the degree of aging. Also, modal testing was conducted to compare the transfer functions of welded beams. Testing result shows that the natural frequencies of the beam changed with the vibration aging due to the change of stiffness in welding part and its stiffness was estimated by the finite element method. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=modal%20testing" title="modal testing">modal testing</a>, <a href="https://publications.waset.org/abstracts/search?q=natural%20frequency" title=" natural frequency"> natural frequency</a>, <a href="https://publications.waset.org/abstracts/search?q=vibration%20aging" title=" vibration aging"> vibration aging</a>, <a href="https://publications.waset.org/abstracts/search?q=welded%20structure" title=" welded structure"> welded structure</a> </p> <a href="https://publications.waset.org/abstracts/79035/study-on-the-dynamic-characteristics-change-of-welded-beam-due-to-vibration-aging" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/79035.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">490</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">917</span> Vibration Signals of Small Vertical Axis Wind Turbines </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Aqoul%20H.%20H.%20Alanezy">Aqoul H. H. Alanezy</a>, <a href="https://publications.waset.org/abstracts/search?q=Ali%20M.%20Abdelsalam"> Ali M. Abdelsalam</a>, <a href="https://publications.waset.org/abstracts/search?q=Nouby%20M.%20Ghazaly"> Nouby M. Ghazaly</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In recent years, progress has been made in increasing the renewable energy share in the power sector particularly in the wind. The experimental study conducted in this paper aims to investigate the effects of number of blades and inflow wind speed on vibration signals of a vertical axis Savonius type wind turbine. The operation of the model of Savonius type wind turbine is conducted to compare two, three and four blades wind turbines to show vibration amplitudes related with wind speed. It is found that the increase of the number of blades leads to decrease of the vibration magnitude. Furthermore, inflow wind speed has reduced effect on the vibration level for higher number of blades. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Savonius%20type%20wind%20turbine" title="Savonius type wind turbine">Savonius type wind turbine</a>, <a href="https://publications.waset.org/abstracts/search?q=number%20of%20blades" title=" number of blades"> number of blades</a>, <a href="https://publications.waset.org/abstracts/search?q=renewable%20energy" title=" renewable energy"> renewable energy</a>, <a href="https://publications.waset.org/abstracts/search?q=vibration%20signals" title=" vibration signals "> vibration signals </a> </p> <a href="https://publications.waset.org/abstracts/106098/vibration-signals-of-small-vertical-axis-wind-turbines" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/106098.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">162</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">916</span> Adoption of Noise and Vibration Management Tools for Major Infrastructure Projects in Sydney, Australia</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Adrian%20Morris">Adrian Morris</a>, <a href="https://publications.waset.org/abstracts/search?q=Rodney%20Phillips"> Rodney Phillips</a>, <a href="https://publications.waset.org/abstracts/search?q=Mattia%20Tabacchi"> Mattia Tabacchi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Minimizing construction noise and vibration impacts is a key challenge for major infrastructure projects in urban environments. Before commencing construction works, Construction Noise and Vibration Management Plan (CNVMP) and Construction Noise and Vibration Impact Statements (CNVIS) are required to be prepared and submitted to the relevant government authorities for review and approval. However, the assessment of potential impacts from work activities at pre-approval stage may be inaccurate as works methodology and scheduling are yet to be determined. In response, noise and vibration management tools have been developed to refine and supplement the CNVIS as works progress. These tools have been successfully implemented in major infrastructure projects allowing contractors to plan and assess construction works in a cost effective and timely manner. As a result, noise and vibration management tools have been incorporated into management plans and are increasingly required by regulators. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=noise%20management" title="noise management">noise management</a>, <a href="https://publications.waset.org/abstracts/search?q=environmental%20noise" title=" environmental noise"> environmental noise</a>, <a href="https://publications.waset.org/abstracts/search?q=infrastructure%20projects" title=" infrastructure projects"> infrastructure projects</a>, <a href="https://publications.waset.org/abstracts/search?q=construction" title=" construction"> construction</a>, <a href="https://publications.waset.org/abstracts/search?q=vibration" title=" vibration"> vibration</a>, <a href="https://publications.waset.org/abstracts/search?q=cost%20effective" title=" cost effective"> cost effective</a> </p> <a href="https://publications.waset.org/abstracts/154101/adoption-of-noise-and-vibration-management-tools-for-major-infrastructure-projects-in-sydney-australia" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/154101.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">137</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=vibration%20signatures&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=vibration%20signatures&page=3">3</a></li> <li class="page-item"><a class="page-link" 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