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fiber</title> <meta name="description" content="Search results for: alfa fiber"> <meta name="keywords" content="alfa fiber"> <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 ml-auto" 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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="alfa fiber"> <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> 1303</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: alfa fiber</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1303</span> Synthesis and Characterisation of Different Blends of Virgin Polyethylene Modified by Naturel Fibres Alfa</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Benalia%20Kouini">Benalia Kouini</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The basic idea of this study is to promote a polyethylene recycle and local vegetable fiber (alfa) in the development and characterization of a new composite material. In this work, different sizes of fiber alfa (<63 microns, between 63 and 125 microns, 125 and 250 microns) were incorporated into the blends (HDPE / recycled HDPE) with different methods elaboration (extruder twin-screw and twin-cylinder mixer). The fiber was modified by sodium hydroxide in order to evaluate the effect of alkaline treatment on the interfacial adhesion and therefore the properties of composites prepared. These were characterized by various techniques: mechanical (tensile and Charpy impact test), Rheological (melt flow), morphological (SEM). The demonstration of the effect of alkali treatment on alfa fiber was examined by FTIR spectroscopy and morphological analysis. The introduction of alfa treated fiber in the (HDPE/recycled HDPE) increased stress, impact strength and Young's modulus on the contrary, the elongation at break decreased. The results of the mechanical properties showed an improvement is better in extrusion twin-screw mixer than two cylinders. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=naturel%20fiber" title="naturel fiber">naturel fiber</a>, <a href="https://publications.waset.org/abstracts/search?q=alfa" title=" alfa"> alfa</a>, <a href="https://publications.waset.org/abstracts/search?q=recycling" title=" recycling"> recycling</a>, <a href="https://publications.waset.org/abstracts/search?q=blends" title=" blends"> blends</a>, <a href="https://publications.waset.org/abstracts/search?q=polyethylene" title=" polyethylene"> polyethylene</a> </p> <a href="https://publications.waset.org/abstracts/125285/synthesis-and-characterisation-of-different-blends-of-virgin-polyethylene-modified-by-naturel-fibres-alfa" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/125285.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">139</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">1302</span> Investigation of Alfa Fibers Reinforced Epoxy-Amine Composites Properties</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Amar%20Boukerrou">Amar Boukerrou</a>, <a href="https://publications.waset.org/abstracts/search?q=Ouerdia%20Belhadj"> Ouerdia Belhadj</a>, <a href="https://publications.waset.org/abstracts/search?q=Dalila%20Hammiche"> Dalila Hammiche</a>, <a href="https://publications.waset.org/abstracts/search?q=Jean%20Francois%20Gerard"> Jean Francois Gerard</a>, <a href="https://publications.waset.org/abstracts/search?q=Jannick%20Rumeau"> Jannick Rumeau</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The main goal of this study is the investigation of alfa fiber content, treated with alkali treatment, on the thermal and mechanical properties of epoxy-amine matrix-based composites. The fibers were treated with 5% of sodium hydroxide solution and varied between 10% to 30% weight fractions. The tensile, flexural, and hardness tests are carried out to investigate the mechanical properties of composites. The results show those composites’ mechanical properties are higher than the neat epoxy-amine. It was noticed that the alkali treatment is more effective in the case of the tensile and flexural modulus than the tensile and flexural strength. The decline of both the tensile and flexural behavior of all composites with the increasing of the filler content was due probably to the random dispersion of the fibers in the epoxy resin The Fourier transform infrared (FTIR) was employed to analyze the chemical structure of epoxy resin before and after curing with amine hardener. FTIR and DSC analysis confirmed that epoxy resin was completely cured with amine hardener at room temperature. SEM analysis has highlighted the microstructure of epoxy matrix and its composites. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=alfa%20fiber" title="alfa fiber">alfa fiber</a>, <a href="https://publications.waset.org/abstracts/search?q=epoxy%20resin" title=" epoxy resin"> epoxy resin</a>, <a href="https://publications.waset.org/abstracts/search?q=alkali%20treatment" title=" alkali treatment"> alkali treatment</a>, <a href="https://publications.waset.org/abstracts/search?q=mechanical%20properties" title=" mechanical properties"> mechanical properties</a> </p> <a href="https://publications.waset.org/abstracts/152199/investigation-of-alfa-fibers-reinforced-epoxy-amine-composites-properties" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/152199.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">109</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">1301</span> Biodegradation Study of a Biocomposite Material Based on Sunflower Oil and Alfa Fibers as Natural Resources</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sihem%20Kadem">Sihem Kadem</a>, <a href="https://publications.waset.org/abstracts/search?q=Ratiba%20Irinislimane"> Ratiba Irinislimane</a>, <a href="https://publications.waset.org/abstracts/search?q=Naima%20Belhaneche"> Naima Belhaneche</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The natural resistance to biodegradation of polymeric materials prepared from petroleum-based source and the management of their wastes in the environment are the driving forces to replace them by other biodegradable materials from renewable resources. For that, in this work new biocomposites materials have been synthesis from sunflower oil (Helianthus annuus) and alfa plants (Stipatenacissima) as natural based resources. The sunflower oil (SFO) was chemically modified via epoxidation then acrylation reactions to obtain acrylated epoxidized sunflower oil resin (AESFO). The AESFO resin was then copolymerized with styrene as co-monomer in the presence of boron trifluoride (BF3) as cationic initiator and cobalt octoate (Co) as catalyst. The alfa fibers were treated with alkali treatment (5% NaOH) before been used as bio-reinforcement. Biocomposites were prepared by mixing the resin with untreated and treated alfa fibers at different percentages. A biodegradation study was carried out for the synthesized biocomposites in a solid medium (burial in the soil) by evaluated, first, the loss of mass, the results obtained were reached between 7.8% and 11% during one year. Then an observation under an optical microscope was carried out, after one year of burial in the soil, microcracks, brown and black spots were appeared on the samples surface. This results shows that the synthesized biocomposites have a great aptitude for biodegradation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=alfa%20fiber" title="alfa fiber">alfa fiber</a>, <a href="https://publications.waset.org/abstracts/search?q=biocomposite" title=" biocomposite"> biocomposite</a>, <a href="https://publications.waset.org/abstracts/search?q=biodegradation" title=" biodegradation"> biodegradation</a>, <a href="https://publications.waset.org/abstracts/search?q=soil" title=" soil"> soil</a>, <a href="https://publications.waset.org/abstracts/search?q=sunflower%20oil" title=" sunflower oil"> sunflower oil</a> </p> <a href="https://publications.waset.org/abstracts/126344/biodegradation-study-of-a-biocomposite-material-based-on-sunflower-oil-and-alfa-fibers-as-natural-resources" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/126344.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">160</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">1300</span> Effect of Resveratrol and Ascorbic Acid on the Stability of Alfa-Tocopherol in Whey Protein Isolate Stabilized O/W Emulsions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Lei%20Wang">Lei Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=Yingzhou%20Ni"> Yingzhou Ni</a>, <a href="https://publications.waset.org/abstracts/search?q=Amr%20M.%20Bakry"> Amr M. Bakry</a>, <a href="https://publications.waset.org/abstracts/search?q=Hao%20Cheng"> Hao Cheng</a>, <a href="https://publications.waset.org/abstracts/search?q=Li%20Liang"> Li Liang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Food proteins have been widely used as carrier materials because of their multiple functional properties. In this study, alfa-tocopherol was encapsulated in the oil phase of an oil-in-water emulsion stabilized with whey protein isolate (WPI). The influence of WPI concentration and resveratrol or ascorbic acid on the decomposition of alfa-tocopherol in the emulsion during storage is discussed. Decomposition decreased as WPI concentrations increased. Decomposition was delayed at ascorbic acid/WPI molar ratios lower than 5 but was promoted at higher ratios. Resveratrol partitioned into the oil-water interface by binding to WPI and its cis-isomer is believed to have contributed most of the protective effect of this polyphenol. These results suggest the possibility of using the emulsifying and ligand-binging properties of WPI to produce carriers for simultaneous encapsulation of alfa-tocopherol and resveratrol in a single emulsion system. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=stability" title="stability">stability</a>, <a href="https://publications.waset.org/abstracts/search?q=alfa-tocopherol" title=" alfa-tocopherol"> alfa-tocopherol</a>, <a href="https://publications.waset.org/abstracts/search?q=resveratrol" title=" resveratrol"> resveratrol</a>, <a href="https://publications.waset.org/abstracts/search?q=whey%20protein%20isolate" title=" whey protein isolate"> whey protein isolate</a> </p> <a href="https://publications.waset.org/abstracts/32495/effect-of-resveratrol-and-ascorbic-acid-on-the-stability-of-alfa-tocopherol-in-whey-protein-isolate-stabilized-ow-emulsions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/32495.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">528</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">1299</span> Development and Characterization of Sandwich Bio-Composites Based on Short Alfa Fiber and Jute Fabric</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Amine%20Rezzoug">Amine Rezzoug</a>, <a href="https://publications.waset.org/abstracts/search?q=Selsabil%20Rokia%20Laraba"> Selsabil Rokia Laraba</a>, <a href="https://publications.waset.org/abstracts/search?q=Mourad%20Ancer"> Mourad Ancer</a>, <a href="https://publications.waset.org/abstracts/search?q=Said%20Abdi"> Said Abdi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Composite materials are taking center stage in different fields thanks to their mechanical characteristics and their ease of preparation. Environmental constraints have led to the development of composite with natural reinforcements. The sandwich structure has the advantage to have good flexural proprieties for low density, which is why it was chosen in this work. The development of these materials is related to an energy saving strategy and environmental protection. The present work refers to the study of the development and characterization of sandwiches composites based on hybrids laminates with natural reinforcements (Alfa and Jute), a metal fabric was introduced into composite in order to have a compromise between weight and properties. We use different configurations of reinforcements (jute, metallic fabric) to develop laminates in order to use them as thin facings for sandwiches materials. While the core was an epoxy matrix reinforced with Alfa short fibers, a chemical treatment sodium hydroxide was cared to improve the adhesion of the Alfa fibers. The mechanical characterization of our materials was made by the tensile and bending test, to highlight the influence of jute and Alfa. After testing, the fracture surfaces are observed by scanning electron microscopy (SEM). Optical microscopy allowed us to calculate the degree of porosity and to observe the morphology of the individual layers. Laminates based on jute fabric have shown better results in tensile test as well as to bending, compared to those of the metallic fabric (100%, 65%). Sandwich Panels were also characterized in terms of bending test. Results we had provide, shows that this composite has sufficient properties for possible replacing conventional composite materials by considering the environmental factors. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bending%20test" title="bending test">bending test</a>, <a href="https://publications.waset.org/abstracts/search?q=bio-composites" title=" bio-composites"> bio-composites</a>, <a href="https://publications.waset.org/abstracts/search?q=sandwiches" title=" sandwiches"> sandwiches</a>, <a href="https://publications.waset.org/abstracts/search?q=tensile%20test" title=" tensile test"> tensile test</a> </p> <a href="https://publications.waset.org/abstracts/35497/development-and-characterization-of-sandwich-bio-composites-based-on-short-alfa-fiber-and-jute-fabric" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/35497.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">435</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">1298</span> Elaboration and Characterization of a Composite Based on Plant Sisal Fiber</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Biskri%20Yasmina">Biskri Yasmina</a>, <a href="https://publications.waset.org/abstracts/search?q=Laidi%20Babouri"> Laidi Babouri</a>, <a href="https://publications.waset.org/abstracts/search?q=Dehas%20Ouided"> Dehas Ouided</a>, <a href="https://publications.waset.org/abstracts/search?q=Bougherira%20Nadjiba"> Bougherira Nadjiba</a>, <a href="https://publications.waset.org/abstracts/search?q=Baghloul%20Rahima"> Baghloul Rahima</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Algeria is one of the countries which have extraordinary resources in vegetable fibers (Palmier, Alfa, Cotton, Sisal). Unfortunately, their valorization in the practical fields, among other things, in building materials, is still little exploited. Several works align with the fact that the use of plant fibers in mortar is an advantageous solution, given its abundance and its socio-economic and environmental impact. The idea of introducing plant fiber into the field of Civil Engineering is not new. Based on the work of several researchers in this field, we propose to study the mechanical behavior of mortar based on Sisal fibers. This work consists of the experimental characterization in the fresh state (workability) and in the hardened state (mechanical resistance to compression and traction by three-point bending) on the scale of mortar mortars based on sisal plant fibers. The main objective of this work is the study of the effect of fiber incorporation on mechanical properties (compressive strength and three-point bending strength). In this study, we varied two parameters, such as the length of the fiber (7cm, 10 cm) and the fibers percentage (0.25%, 0.5%, 0.75%, 1%, 1.25% and 1.5%). The results show that there is a slight increase in the compressive strength of the fiber-reinforced mortars compared to the reference mortar (mortar without fibers). With regard to the three-point bending tests, the fiber-reinforced mortars presented higher resistances compared to the reference mortar and this was for the different lengths and different percentages studied. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=mortar" title="mortar">mortar</a>, <a href="https://publications.waset.org/abstracts/search?q=plant%20fiber" title=" plant fiber"> plant fiber</a>, <a href="https://publications.waset.org/abstracts/search?q=experimentation" title=" experimentation"> experimentation</a>, <a href="https://publications.waset.org/abstracts/search?q=mechanical%20characterization" title=" mechanical characterization"> mechanical characterization</a>, <a href="https://publications.waset.org/abstracts/search?q=analysis" title=" analysis"> analysis</a> </p> <a href="https://publications.waset.org/abstracts/166675/elaboration-and-characterization-of-a-composite-based-on-plant-sisal-fiber" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/166675.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">1297</span> Damage Strain Analysis of Parallel Fiber Eutectic</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jian%20Zheng">Jian Zheng</a>, <a href="https://publications.waset.org/abstracts/search?q=Xinhua%20Ni"> Xinhua Ni</a>, <a href="https://publications.waset.org/abstracts/search?q=Xiequan%20Liu"> Xiequan Liu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> According to isotropy of parallel fiber eutectic, the no- damage strain field in parallel fiber eutectic is obtained from the flexibility tensor of parallel fiber eutectic. Considering the damage behavior of parallel fiber eutectic, damage variables are introduced to determine the strain field of parallel fiber eutectic. The damage strains in the matrix, interphase, and fiber of parallel fiber eutectic are quantitatively analyzed. Results show that damage strains are not only associated with the fiber volume fraction of parallel fiber eutectic, but also with the damage degree. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=damage%20strain" title="damage strain">damage strain</a>, <a href="https://publications.waset.org/abstracts/search?q=initial%20strain" title=" initial strain"> initial strain</a>, <a href="https://publications.waset.org/abstracts/search?q=fiber%20volume%20fraction" title=" fiber volume fraction"> fiber volume fraction</a>, <a href="https://publications.waset.org/abstracts/search?q=parallel%20fiber%20eutectic" title=" parallel fiber eutectic"> parallel fiber eutectic</a> </p> <a href="https://publications.waset.org/abstracts/60032/damage-strain-analysis-of-parallel-fiber-eutectic" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/60032.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">577</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">1296</span> Research on Carbon Fiber Tow Spreading Technique with Multi-Rolls </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Soon%20Ok%20Jo">Soon Ok Jo</a>, <a href="https://publications.waset.org/abstracts/search?q=Han%20Kyu%20Jeung"> Han Kyu Jeung</a>, <a href="https://publications.waset.org/abstracts/search?q=Si%20Woo%20Park"> Si Woo Park</a> </p> <p class="card-text"><strong>Abstract:</strong></p> With the process of consistent expansion of carbon fiber in width (Carbon Fiber Tow Spreading Technique), it can be expected that such process can enhance the production of carbon fiber reinforced composite material and quality of the product. In this research, the method of mechanically expanding carbon fiber and increasing its width was investigated by using various geometric rolls. In addition, experimental type of carbon fiber expansion device was developed and tested using 12K carbon fiber. As a result, the effects of expansion of such fiber under optimized operating conditions and geometric structure of an elliptical roll, were analyzed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=carbon%20fiber" title="carbon fiber">carbon fiber</a>, <a href="https://publications.waset.org/abstracts/search?q=tow%20spreading%20fiber" title=" tow spreading fiber"> tow spreading fiber</a>, <a href="https://publications.waset.org/abstracts/search?q=pre-preg" title=" pre-preg"> pre-preg</a>, <a href="https://publications.waset.org/abstracts/search?q=roll%20structure" title=" roll structure"> roll structure</a> </p> <a href="https://publications.waset.org/abstracts/51684/research-on-carbon-fiber-tow-spreading-technique-with-multi-rolls" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/51684.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">1295</span> Validity and Reliability of Communication Activities of Daily Living- Second Edition and Assessment of Language-related Functional Activities: Comparative Evidence from Arab Aphasics</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sadeq%20Al%20Yaari">Sadeq Al Yaari</a>, <a href="https://publications.waset.org/abstracts/search?q=Ayman%20Al%20Yaari"> Ayman Al Yaari</a>, <a href="https://publications.waset.org/abstracts/search?q=Adham%20Al%20Yaari"> Adham Al Yaari</a>, <a href="https://publications.waset.org/abstracts/search?q=Montaha%20Al%20Yaari"> Montaha Al Yaari</a>, <a href="https://publications.waset.org/abstracts/search?q=Aayah%20Al%20Yaari"> Aayah Al Yaari</a>, <a href="https://publications.waset.org/abstracts/search?q=Sajedah%20Al%20Yaari"> Sajedah Al Yaari</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Validation of communication activities of daily living-second edition (CADL-2) and assessment of language-related functional activities (ALFA) tests is a critical investment decision, and activities related to language impairments often are underestimated. Literature indicates that age factors, and gender differences may affect the performance of the aphasics. Thus, understanding these influential factors is highly important to neuropsycholinguists and speech language pathologists (SLPs). Purpose: The goal of this study is twofold: (1) to in/validate CADL-2 and ALFA tests, and (2) to investigate whether or not the two assessment tests are reliable. Design: A comparative study is made between the results obtained from the analyses of the Arabic versions of CADL-2 and ALFA tests. Participants: The communication activities of daily-living and language-related functional activities were assessed from the obtained results of 100 adult aphasics (50 males, 50 females; ages 16 to 65). Procedures: Firstly, the two translated and standardized Arabic versions of CADL-2 and ALFA tests were introduced to the Arab aphasics under investigation. Armed with the new two versions of the tests, one of the researchers assessed the language-related functional communication and activities. Outcomes drawn from the obtained analysis of the comparative studies were then qualitatively and statistically analyzed. Main outcomes and Results: Regarding the validity of CADL-2 and ALFA, it is found that …. Is more valid in both pre-and posttests. Concerning the reliability of the two tests, it is found that ….is more reliable in both pre-and-posttests which undoubtedly means that …..is more trustable. Nor must we forget to indicate here that the relationship between age and gender was very weak due to that no remarkable gender differences between the two in both CADL-2 and ALFA pre-and-posttests. Conclusions & Implications: CADL-2 and ALFA tests were found to be valid and reliable tests. In contrast to previous studies, age and gender were not significantly associated with the results of validity and reliability of the two assessment tests. In clearer terms, age and gender patterns do not affect the validation of these two tests. Future studies might focus on complex questions including the use of CADL-2 and ALFA functionally; how gender and puberty influence the results in case the sample is large; the effects of each type of aphasia on the final outcomes, and measurements’ results of imaging techniques. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=CADL-2" title="CADL-2">CADL-2</a>, <a href="https://publications.waset.org/abstracts/search?q=ALFA" title=" ALFA"> ALFA</a>, <a href="https://publications.waset.org/abstracts/search?q=comparison" title=" comparison"> comparison</a>, <a href="https://publications.waset.org/abstracts/search?q=language%20test" title=" language test"> language test</a>, <a href="https://publications.waset.org/abstracts/search?q=arab%20aphasics" title=" arab aphasics"> arab aphasics</a>, <a href="https://publications.waset.org/abstracts/search?q=validity" title=" validity"> validity</a>, <a href="https://publications.waset.org/abstracts/search?q=reliability" title=" reliability"> reliability</a>, <a href="https://publications.waset.org/abstracts/search?q=neuropsycholinguistics" title=" neuropsycholinguistics"> neuropsycholinguistics</a>, <a href="https://publications.waset.org/abstracts/search?q=comparison" title=" comparison"> comparison</a> </p> <a href="https://publications.waset.org/abstracts/187015/validity-and-reliability-of-communication-activities-of-daily-living-second-edition-and-assessment-of-language-related-functional-activities-comparative-evidence-from-arab-aphasics" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/187015.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">37</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">1294</span> Characteristics of PET-Based Conductive Fiber</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chung-Yang%20Chuang">Chung-Yang Chuang</a>, <a href="https://publications.waset.org/abstracts/search?q=Chi-Lung%20Chen"> Chi-Lung Chen</a>, <a href="https://publications.waset.org/abstracts/search?q=Hui-Min%20Wang"> Hui-Min Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=Chang-Jung%20Chang"> Chang-Jung Chang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Conductive fiber is the key material for e-textiles and wearable devices. However, the durability of the conductive fiber after the wash process is an important issue for conductive fiber applications in e-textiles. Therefore, it is necessary for conductive fiber with good performance on electrically conductive behavior during the product life cycle. In this research, the PET-based conductive fiber was prepared by silver conductive ink continuous coating. The conductive fiber showed low fiber resistance (10-¹~10Ω/cm), and the conductive behavior still had good performance (fiber resistance:10-¹~10Ω/cm， percentage of fiber resistance change:<60%) after the water wash durability test (AATCC-135， 30 times). This research provides a better solution to resolve the issues of resistance increase after the water wash process due to the damage to the conductive fiber structure. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=PET" title="PET">PET</a>, <a href="https://publications.waset.org/abstracts/search?q=conductive%20fiber" title=" conductive fiber"> conductive fiber</a>, <a href="https://publications.waset.org/abstracts/search?q=e-textiles" title=" e-textiles"> e-textiles</a>, <a href="https://publications.waset.org/abstracts/search?q=wearable%20devices" title=" wearable devices"> wearable devices</a> </p> <a href="https://publications.waset.org/abstracts/166142/characteristics-of-pet-based-conductive-fiber" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/166142.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">101</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">1293</span> Study of Biodegradable Composite Materials Based on Polylactic Acid and Vegetal Reinforcements</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Manel%20Hannachi">Manel Hannachi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mustapha%20Nechiche"> Mustapha Nechiche</a>, <a href="https://publications.waset.org/abstracts/search?q=Said%20Azem"> Said Azem</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study focuses on biodegradable materials made from Poly-lactic acid (PLA) and vegetal reinforcements. Three materials are developed from PLA, as a matrix, and : (i) olive kernels (OK); (ii) alfa (α) short fibers and (iii) OK+ α mixture, as reinforcements. After processing of PLA pellets and olive kernels in powder and alfa stems in short fibers, three mixtures, namely PLA-OK, PLA-α, and PLA-OK-α are prepared and homogenized in Turbula®. These mixtures are then compacted at 180°C under 10 MPa during 15 mn. Scanning Electron Microscopy (SEM) examinations show that PLA matrix adheres at surface of all reinforcements and the dispersion of these ones in matrix is good. X-ray diffraction (XRD) analyses highlight an increase of PLA inter-reticular distances, especially for the PLA-OK case. These results are explained by the dissociation of some molecules derived from reinforcements followed by diffusion of the released atoms in the structure of PLA. This is consistent with Fourier Transform Infrared Spectroscopy (FTIR) and Differential Scanning Calorimetry (DSC) analysis results. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=alfa%20short%20fibers" title="alfa short fibers">alfa short fibers</a>, <a href="https://publications.waset.org/abstracts/search?q=biodegradable%20composite" title=" biodegradable composite"> biodegradable composite</a>, <a href="https://publications.waset.org/abstracts/search?q=olive%20kernels" title=" olive kernels"> olive kernels</a>, <a href="https://publications.waset.org/abstracts/search?q=poly-lactic%20acid" title=" poly-lactic acid"> poly-lactic acid</a> </p> <a href="https://publications.waset.org/abstracts/85801/study-of-biodegradable-composite-materials-based-on-polylactic-acid-and-vegetal-reinforcements" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/85801.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">147</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">1292</span> Impact of the Action Antropic in the Desertification of Steppe in Algeria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kadi-Hanifi%20Halima">Kadi-Hanifi Halima</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Stipa tenacissima is a plant with a big ecological value (against desertification) and economical stake (paper industry). It is important by its pastoral value due to the inflorescence. It occupied large areas between the Tellian atlas and the Saharian atlas, at the present, these areas of alfa have regressed a lot. This regression is estimated at 1% per year. The principal cause is a human responsibility. The drought is just an aggravating circumstance. The eradication of such a kind of species will have serious consequences upon the equilibrium of all the steppic ecosystem. Thus, we have thought necessary and urgent to know the alfa ecosystem, under all its aspects (climatic, floristic, and edaphic), this diagnostic could direct the fight actions against desertification <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=desertification" title="desertification">desertification</a>, <a href="https://publications.waset.org/abstracts/search?q=anthropic%20action" title=" anthropic action"> anthropic action</a>, <a href="https://publications.waset.org/abstracts/search?q=soils" title=" soils"> soils</a>, <a href="https://publications.waset.org/abstracts/search?q=Stipa%20tenacissima" title=" Stipa tenacissima"> Stipa tenacissima</a> </p> <a href="https://publications.waset.org/abstracts/27655/impact-of-the-action-antropic-in-the-desertification-of-steppe-in-algeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/27655.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">312</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">1291</span> Validity and Reliability of Assessment of Language-Related Functional Activities: Evidence from Arab Aphasics</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sadeq%20Al%20Yaari">Sadeq Al Yaari</a>, <a href="https://publications.waset.org/abstracts/search?q=Nassr%20Almaflehi"> Nassr Almaflehi</a>, <a href="https://publications.waset.org/abstracts/search?q=Ayman%20Al%20Yaari"> Ayman Al Yaari</a>, <a href="https://publications.waset.org/abstracts/search?q=Adham%20Al%20Yaari"> Adham Al Yaari</a>, <a href="https://publications.waset.org/abstracts/search?q=Montaha%20Al%20Yaari"> Montaha Al Yaari</a>, <a href="https://publications.waset.org/abstracts/search?q=Aayah%20Al%20Yaari"> Aayah Al Yaari</a>, <a href="https://publications.waset.org/abstracts/search?q=Sajedah%20Al%20Yaari"> Sajedah Al Yaari</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Assessment of language-related functional activities (ALFA) is of vital importance in assessing aphasics’ performance of both sexes. However, the validity and reliability of this language therapeutic test has never been validated in the Arabic medical literature. Purpose: The aim of this study was to validate the test by assessing the language-related functional activities of 100 gender aphasics based in a medical faculty. Design: ALFA Pre-and-posttest was administered twice in three weeks to test the language-related functional activities of 100 gender aphasics. Settings: Al Khars hospital in Al Ahsa’a, Kingdom of Saudi Arabia (KSA). Participants: Sixteen to eight-year-old participants (N = 100 men and women) were enrolled in this experiment. Again, the purpose was to assess their language-related functional activities using ALFA. Procedures: The first step was to translate the English version of ALFA test into the mother tongue of the patients (Arabic). Secondly, the translated text is reviewed and edited by three specialists of Arabic language. Having the test standardized, the third step was to assess language-related functional activities of the participants in natural environment. Assessment took place in three weeks. In the first week, a pre-test was administered to the participants at hand and after two weeks, a post-test was administered to identify whether or not significant differences between the two tests (pre-and-posttest) could be observed. Interventions: Outcomes of the results obtained from the analyses were broadly discussed. Linguistic and statistical comparisons were held to illustrate the findings of this study. Main outcomes and Results: The analysis of the obtained results indicated that the performance of the aphasic participants in the post-test did not differ from that of the pre-test (, respectively). Conclusions & Implications: ALFA was proved to be a valid and reliable test. Moreover, outlined results pointed out the importance of assessing not only gender aphasics’ language, but also their language-related functional activities. Further research is needed to explore how gender aphasics’ verbal and non-verbal performances interact. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ALFA" title="ALFA">ALFA</a>, <a href="https://publications.waset.org/abstracts/search?q=language%20test" title=" language test"> language test</a>, <a href="https://publications.waset.org/abstracts/search?q=Arab%20aphasics" title=" Arab aphasics"> Arab aphasics</a>, <a href="https://publications.waset.org/abstracts/search?q=validity" title=" validity"> validity</a>, <a href="https://publications.waset.org/abstracts/search?q=reliability" title=" reliability"> reliability</a>, <a href="https://publications.waset.org/abstracts/search?q=psychoneurolinguistics." title=" psychoneurolinguistics."> psychoneurolinguistics.</a> </p> <a href="https://publications.waset.org/abstracts/186625/validity-and-reliability-of-assessment-of-language-related-functional-activities-evidence-from-arab-aphasics" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/186625.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">47</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">1290</span> A Study on the Improvement of the Bond Performance of Polypropylene Macro Fiber according to Longitudinal Shape Change</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sung-yong%20Choi">Sung-yong Choi</a>, <a href="https://publications.waset.org/abstracts/search?q=Woo-tai%20Jung"> Woo-tai Jung</a>, <a href="https://publications.waset.org/abstracts/search?q=Young-hwan%20Park"> Young-hwan Park</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study intends to improve the bond performance of the polypropylene fiber used as reinforcing fiber for concrete by changing its shape into double crimped type through the enhancement its fabrication process. The bond performance of such double crimped fiber is evaluated by applying the JCI SF-8 (dog-bone shape) testing method. The test results reveal that the double crimped fiber develops bond performance improved by more than 19% compared to the conventional crimped type fiber. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bond" title="Bond">Bond</a>, <a href="https://publications.waset.org/abstracts/search?q=Polypropylene" title=" Polypropylene"> Polypropylene</a>, <a href="https://publications.waset.org/abstracts/search?q=fiber%20reinforcement" title=" fiber reinforcement"> fiber reinforcement</a>, <a href="https://publications.waset.org/abstracts/search?q=macro%20fiber" title=" macro fiber"> macro fiber</a>, <a href="https://publications.waset.org/abstracts/search?q=shape%20change" title=" shape change"> shape change</a> </p> <a href="https://publications.waset.org/abstracts/1536/a-study-on-the-improvement-of-the-bond-performance-of-polypropylene-macro-fiber-according-to-longitudinal-shape-change" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/1536.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">462</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">1289</span> Simulation of Fiber Deposition on Molded Fiber Screen Using Multi-Sphere Discrete Element Method</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kim%20Quy%20Le">Kim Quy Le</a>, <a href="https://publications.waset.org/abstracts/search?q=Duan%20Fei"> Duan Fei</a>, <a href="https://publications.waset.org/abstracts/search?q=Jia%20Wei%20Chew"> Jia Wei Chew</a>, <a href="https://publications.waset.org/abstracts/search?q=Jun%20Zeng"> Jun Zeng</a>, <a href="https://publications.waset.org/abstracts/search?q=Maria%20Fabiola%20Leyva"> Maria Fabiola Leyva</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In line with the sustainable development goal, molded fiber products play important roles in reducing plastic-based packaging. To fabricate molded fiber products, besides using conventional meshing tools, 3D printing is employed to manufacture the molded fiber screen. 3D printing technique allows printing molded fiber screens with complex geometry, flexible in pore size and shape. The 3D printed molded fiber screens are in the progress of investigation to improve the de-watering efficiency, fiber collection, mechanical strength, etc. In addition, the fiber distribution on the screen is also necessary to access the quality of the screen. Besides using experimental methods to capture the fiber distribution on screen, simulation also offers using tools to access the uniformity of fiber. In this study, the fiber was simulated using the multi-sphere model to simulate the fibers. The interaction of the fibers was able to mimic by employing the discrete element method. The fiber distribution was captured and compared to the experiment. The simulation results were able to reveal the fiber deposition layer upon layer and explain the formation of uneven thickness on the tilted area of molded fiber screen. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=3D%20printing" title="3D printing">3D printing</a>, <a href="https://publications.waset.org/abstracts/search?q=multi-jet%20fusion" title=" multi-jet fusion"> multi-jet fusion</a>, <a href="https://publications.waset.org/abstracts/search?q=molded%20fiber%20screen" title=" molded fiber screen"> molded fiber screen</a>, <a href="https://publications.waset.org/abstracts/search?q=discrete%20element%20method" title=" discrete element method"> discrete element method</a> </p> <a href="https://publications.waset.org/abstracts/157099/simulation-of-fiber-deposition-on-molded-fiber-screen-using-multi-sphere-discrete-element-method" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/157099.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">114</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">1288</span> Effect of Fiber Content and Chemical Treatment on Hardness of Bagasse Fiber Reinforced Epoxy Composites</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Varun%20Mittal">Varun Mittal</a>, <a href="https://publications.waset.org/abstracts/search?q=Shishir%20Sinha"> Shishir Sinha</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The present experimental study focused on the hardness behavior of bagasse fiber-epoxy composites. The relationship between bagasse fiber content and effect of chemical treatment on bagasse fiber as a function of Brinell hardness of bagasse fiber epoxy was investigated. Bagasse fiber was treated with sodium hydroxide followed by acrylic acid before they were reinforced with epoxy resin. Compared hardness properties with the untreated bagasse filled epoxy composites. It was observed that Brinell hardness increased up to 15 wt% fiber content and further decreases, however, chemical treatment also improved the hardness properties of composites. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bagasse%20fiber" title="bagasse fiber">bagasse fiber</a>, <a href="https://publications.waset.org/abstracts/search?q=composite" title=" composite"> composite</a>, <a href="https://publications.waset.org/abstracts/search?q=hardness" title=" hardness"> hardness</a>, <a href="https://publications.waset.org/abstracts/search?q=sodium%20hydroxide" title=" sodium hydroxide"> sodium hydroxide</a> </p> <a href="https://publications.waset.org/abstracts/52160/effect-of-fiber-content-and-chemical-treatment-on-hardness-of-bagasse-fiber-reinforced-epoxy-composites" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/52160.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">286</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">1287</span> Influence of Chirp of High-Speed Laser Diodes and Fiber Dispersion on Performance of Non-Amplified 40-Gbps Optical Fiber Links</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Bakry">Ahmed Bakry</a>, <a href="https://publications.waset.org/abstracts/search?q=Moustafa%20Ahmed"> Moustafa Ahmed</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We model and simulate the combined effect of fiber dispersion and frequency chirp of a directly modulated high-speed laser diode on the figures of merit of a non-amplified 40-Gbps optical fiber link. We consider both the return to zero (RZ) and non-return to zero (NRZ) patterns of the pseudorandom modulation bits. The performance of the fiber communication system is assessed by the fiber-length limitation due to the fiber dispersion. We study the influence of replacing standard single-mode fibers by non-zero dispersion-shifted fibers on the maximum fiber length and evaluate the associated power penalty. We introduce new dispersion tolerances for 1-dB power penalty of the RZ and NRZ 40-Gbps optical fiber links. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bit%20error%20rate" title="bit error rate">bit error rate</a>, <a href="https://publications.waset.org/abstracts/search?q=dispersion" title=" dispersion"> dispersion</a>, <a href="https://publications.waset.org/abstracts/search?q=frequency%20chirp" title=" frequency chirp"> frequency chirp</a>, <a href="https://publications.waset.org/abstracts/search?q=fiber%20communications" title=" fiber communications"> fiber communications</a>, <a href="https://publications.waset.org/abstracts/search?q=semiconductor%20laser" title=" semiconductor laser"> semiconductor laser</a> </p> <a href="https://publications.waset.org/abstracts/10587/influence-of-chirp-of-high-speed-laser-diodes-and-fiber-dispersion-on-performance-of-non-amplified-40-gbps-optical-fiber-links" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/10587.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">641</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">1286</span> Compressive Strength of Synthetic Fiber Reinforced Concretes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Soner%20Guler">Soner Guler</a>, <a href="https://publications.waset.org/abstracts/search?q=Demet%20Yavuz"> Demet Yavuz</a>, <a href="https://publications.waset.org/abstracts/search?q=Fuat%20Korkut"> Fuat Korkut</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Synthetic fibers are commonly used in many civil engineering applications because of its some superior characteristics such as non-corrosive and cheapness. This study presents the results of experimental study on compressive strength of synthetic fiber reinforced concretes. Two types of polyamide (PA) synthetic fiber with the length of 12 and 54 mm are used for this study. The fiber volume ratio is kept as 0.25%, 0.75%, and 0.75% in all mixes. The plain concrete compressive strength is 36.2 MPa. The test results clearly show that the increase in compressive strength for synthetic fiber reinforced concretes is significant. The greatest increase in compressive strength is 23% for PA synthetic fiber reinforced concretes with 0.75% fiber volume. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=synthetic%20fibers" title="synthetic fibers">synthetic fibers</a>, <a href="https://publications.waset.org/abstracts/search?q=polyamide%20fibers" title=" polyamide fibers"> polyamide fibers</a>, <a href="https://publications.waset.org/abstracts/search?q=fiber%20volume" title=" fiber volume"> fiber volume</a>, <a href="https://publications.waset.org/abstracts/search?q=compressive%20strength" title=" compressive strength"> compressive strength</a> </p> <a href="https://publications.waset.org/abstracts/53592/compressive-strength-of-synthetic-fiber-reinforced-concretes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/53592.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">527</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">1285</span> Effect of Feed Supplement Optipartum C+ 200 (Alfa- Amylase and Beta-Glucanase) in In-Line Rumination Parameters</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ram%C5%ABnas%20Antanaitis">Ramūnas Antanaitis</a>, <a href="https://publications.waset.org/abstracts/search?q=Lina%20Anskien%C4%97"> Lina Anskienė</a>, <a href="https://publications.waset.org/abstracts/search?q=Robertas%20Sto%C5%A1kus"> Robertas Stoškus</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study was conducted during 2021.05.01 – 2021.08.31 at the Lithuanian University of health sciences and one Lithuanian dairy farm with 500 dairy cows (55.911381565736, 21.881321760608195). Average calving – 50 cows per month. Cows (n=20) in the treatment group (TG) were fed with feed supplement Optipartum C+ 200 (Enzymes: Alfa- Amylase 57 Units; Beta-Glucanase 107 Units) from 21 days before calving till 30 days after calving with feeding rate 200g/cow/day. Cows in the control group (CG) were fed a feed ration without feed supplement. Measurements started from 6 days before calving and continued till 21 days after calving. The following indicators were registered: with the RumiWatch System: Rumination time; Eating time; Drinking time; Rumination chews; Eating chews; Drinking gulps; Bolus; Chews per minute; Chews per bolus. With SmaXtec system - the temperature, pH of the contents of cows' reticulorumens and cows' activity. According to our results, we found that feeding of cows, from 21 days before calving to 30 days after calving, with a feed supplement with alfa- amylase and beta-glucanase (Optipartum C+ 200) (with dose 200g/cow/day) can produce an increase in: 9% rumination time and eating time, 19% drinking time, 11% rumination chews, 16% eating chews,13% number of boluses per rumination, 5% chews per minute and 16% chews per bolus. We found 1.28 % lower reiticulorumen pH and 0.64% lower reticulorumen temperature in cows fed with the supplement compared with control group cows. Also, cows feeding with enzymes were 8.80% more active. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alfa-Amylase" title="Alfa-Amylase">Alfa-Amylase</a>, <a href="https://publications.waset.org/abstracts/search?q=Beta-Glucanase" title=" Beta-Glucanase"> Beta-Glucanase</a>, <a href="https://publications.waset.org/abstracts/search?q=cows" title=" cows"> cows</a>, <a href="https://publications.waset.org/abstracts/search?q=in-line" title=" in-line"> in-line</a>, <a href="https://publications.waset.org/abstracts/search?q=sensors" title=" sensors"> sensors</a> </p> <a href="https://publications.waset.org/abstracts/143264/effect-of-feed-supplement-optipartum-c-200-alfa-amylase-and-beta-glucanase-in-in-line-rumination-parameters" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/143264.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">1284</span> Performance of Fiber Reinforced Self-Compacting Concrete Containing Different Pozzolanic Materials</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Fathi%20Mohamed">Ahmed Fathi Mohamed</a>, <a href="https://publications.waset.org/abstracts/search?q=Nasir%20Shafiq"> Nasir Shafiq</a>, <a href="https://publications.waset.org/abstracts/search?q=Muhd%20Fadhil%20Nuruddin"> Muhd Fadhil Nuruddin</a>, <a href="https://publications.waset.org/abstracts/search?q=Ali%20Elheber%20Ahmed"> Ali Elheber Ahmed</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Steel fiber adds to Self-Compacting Concrete (SCC) to enhance it is properties and achieves the requirement. This research work focus on the using of different percentage of steel fiber in SCC mixture contains fly ash and microwave incinerator rice husk ash (MIRHA) as supplementary material. Fibers affect several characteristics of SCC in the fresh and the hardened state. To optimize fiber-reinforced self-compacting concrete (FSCC), The possible fiber content of a given mix composition is an essential input parameter. The aim of the research is to study the properties of fiber reinforced self–compacting (FRSCC) and to develop the expert system/computer program of mix proportion for calculating the steel fiber content and pozzolanic replacement that can be applied to investigate the compressive strength of FSCC mix. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=self-compacting%20concrete" title="self-compacting concrete">self-compacting concrete</a>, <a href="https://publications.waset.org/abstracts/search?q=silica%20fume" title=" silica fume"> silica fume</a>, <a href="https://publications.waset.org/abstracts/search?q=steel%20fiber" title=" steel fiber"> steel fiber</a>, <a href="https://publications.waset.org/abstracts/search?q=fresh%20taste" title=" fresh taste"> fresh taste</a> </p> <a href="https://publications.waset.org/abstracts/1321/performance-of-fiber-reinforced-self-compacting-concrete-containing-different-pozzolanic-materials" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/1321.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">574</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">1283</span> Characterization of the Physical Properties of Sheep Wool Fiber in Amhara National Regional State</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Erkihun%20Zelalem">Erkihun Zelalem</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Ethiopian’s sheep population, estimated to be 25.5 million heads, is found widely distributed across the diverse agro-ecological zones of the country. In the past, there were many projects that done to improve production of meat, milk and productivity of sheep breed. However, no significance research has been done so far on production of wool fiber in Ethiopia which could be taken as a potential fiber next to cotton. The measurement of the sheep wool fiber physical properties is critically important, technical, commercial and certification point of view. A total of 24 sheep from different breeds (Menz, Tikur, Farta and Washera) were used in this study. Samples of fiber were analyzed using standard measurements for wool fiber length (WFL), mean fiber diameter (MFD), coefficient of variation of wool fiber diameter (FDCV), breaking strength, elongation, crimp, cleanness and moisture content. Based on the result all parameters shows that there is a great potential of getting of wool fiber from the skin of sheep and according to the standards of its property and grading system based on wool fiber fineness is medium to course. These types of fibers can be making carpets, blankets, rugs, coverings and other products. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Fiber" title="Fiber">Fiber</a>, <a href="https://publications.waset.org/abstracts/search?q=Fineness" title=" Fineness"> Fineness</a>, <a href="https://publications.waset.org/abstracts/search?q=Carpet" title=" Carpet"> Carpet</a>, <a href="https://publications.waset.org/abstracts/search?q=Fleece" title=" Fleece"> Fleece</a>, <a href="https://publications.waset.org/abstracts/search?q=Raw%20Wool" title=" Raw Wool"> Raw Wool</a> </p> <a href="https://publications.waset.org/abstracts/119161/characterization-of-the-physical-properties-of-sheep-wool-fiber-in-amhara-national-regional-state" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/119161.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">1282</span> Impact Modified Oil Palm Empty Fruit Bunch Fiber/Poly(Lactic) Acid Composite</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20D.%20H.%20Beg">Mohammad D. H. Beg</a>, <a href="https://publications.waset.org/abstracts/search?q=John%20O.%20Akindoyo"> John O. Akindoyo</a>, <a href="https://publications.waset.org/abstracts/search?q=Suriati%20Ghazali"> Suriati Ghazali</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdullah%20A.%20Mamun"> Abdullah A. Mamun</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, composites were fabricated from oil palm empty fruit bunch fiber and poly(lactic) acid by extrusion followed by injection moulding. Surface of the fiber was pre-treated by ultrasound in an alkali medium and treatment efficiency was investigated by scanning electron microscopy (SEM) analysis and Fourier transforms infrared spectrometer (FTIR). Effect of fiber treatment on composite was characterized by tensile strength (TS), tensile modulus (TM) and impact strength (IS). Furthermore, biostrong impact modifier was incorporated into the treated fiber composite to improve its impact properties. Mechanical testing showed an improvement of up to 23.5% and 33.6% respectively for TS and TM of treated fiber composite above untreated fiber composite. On the other hand incorporation of impact modifier led to enhancement of about 20% above the initial IS of the treated fiber composite. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=fiber%20treatment" title="fiber treatment">fiber treatment</a>, <a href="https://publications.waset.org/abstracts/search?q=impact%20modifier" title=" impact modifier"> impact modifier</a>, <a href="https://publications.waset.org/abstracts/search?q=natural%20fibers" title=" natural fibers"> natural fibers</a>, <a href="https://publications.waset.org/abstracts/search?q=ultrasound" title=" ultrasound"> ultrasound</a> </p> <a href="https://publications.waset.org/abstracts/17108/impact-modified-oil-palm-empty-fruit-bunch-fiberpolylactic-acid-composite" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/17108.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">1281</span> Interferometric Demodulation Scheme Using a Mode-Locker Fiber Laser</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Liang%20Zhang">Liang Zhang</a>, <a href="https://publications.waset.org/abstracts/search?q=Yuanfu%20Lu"> Yuanfu Lu</a>, <a href="https://publications.waset.org/abstracts/search?q=Yuming%20Dong"> Yuming Dong</a>, <a href="https://publications.waset.org/abstracts/search?q=Guohua%20Jiao"> Guohua Jiao</a>, <a href="https://publications.waset.org/abstracts/search?q=Wei%20Chen"> Wei Chen</a>, <a href="https://publications.waset.org/abstracts/search?q=Jiancheng%20Lv"> Jiancheng Lv</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We demonstrated an interferometric demodulation scheme using a mode-locked fiber laser. The mode-locked fiber laser is launched into a two-beam interferometer. When the ratio between the fiber path imbalance of interferometer and the laser cavity length is close to an integer, an interferometric fringe emerges as a result of vernier effect, and then the phase shift of the interferometer can be demodulated. The mode-locked fiber laser provides a large bandwidth and reduces the cost for wavelength division multiplexion (WDM). The proposed interferometric demodulation scheme can be further applied in multi-point sensing system such as fiber optics hydrophone array, seismic wave detection network with high sensitivity and low cost. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=fiber%20sensing" title="fiber sensing">fiber sensing</a>, <a href="https://publications.waset.org/abstracts/search?q=interferometric%20demodulation" title=" interferometric demodulation"> interferometric demodulation</a>, <a href="https://publications.waset.org/abstracts/search?q=mode-locked%20fiber%20laser" title=" mode-locked fiber laser"> mode-locked fiber laser</a>, <a href="https://publications.waset.org/abstracts/search?q=vernier%20effect" title=" vernier effect"> vernier effect</a> </p> <a href="https://publications.waset.org/abstracts/48278/interferometric-demodulation-scheme-using-a-mode-locker-fiber-laser" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/48278.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">329</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">1280</span> Thermo-Mechanical Properties of PBI Fiber Reinforced HDPE Composites: Effect of Fiber Length and Composition</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Shan%20Faiz">Shan Faiz</a>, <a href="https://publications.waset.org/abstracts/search?q=Arfat%20Anis"> Arfat Anis</a>, <a href="https://publications.waset.org/abstracts/search?q=Saeed%20M.%20Al-Zarani"> Saeed M. Al-Zarani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> High density polyethylene (HDPE) and poly benzimidazole fiber (PBI) composites were prepared by melt blending in a twin screw extruder (TSE). The thermo-mechanical properties of PBI fiber reinforced HDPE composite samples (1%, 4% and 8% fiber content) of fiber lengths 3 mm and 6 mm were investigated using differential scanning calorimeter (DSC), universal testing machine (UTM), rheometer and scanning electron microscopy (SEM). The effect of fiber content and fiber lengths on the thermo-mechanical properties of the HDPE-PBI composites was studied. The DSC analysis showed decrease in crystallinity of HDPE-PBI composites with the increase of fiber loading. Maximum decrease observed was 12% at 8% fiber length. The thermal stability was found to increase with the addition of fiber. T50% was notably increased to 40oC for both grades of HDPE using 8% of fiber content. The mechanical properties were not much affected by the increase in fiber content. The optimum value of tensile strength was achieved using 4% fiber content and slight increase of 9% in tensile strength was observed. No noticeable change was observed in flexural strength. In rheology study, the complex viscosities of HDPE-PBI composites were higher than the HDPE matrix and substantially increased with even minimum increase of PBI fiber loading i.e. 1%. We found that the addition of the PBI fiber resulted in a modest improvement in the thermal stability and mechanical properties of the prepared composites. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=PBI%20fiber" title="PBI fiber">PBI fiber</a>, <a href="https://publications.waset.org/abstracts/search?q=high%20density%20polyethylene" title=" high density polyethylene"> high density polyethylene</a>, <a href="https://publications.waset.org/abstracts/search?q=composites" title=" composites"> composites</a>, <a href="https://publications.waset.org/abstracts/search?q=melt%20blending" title=" melt blending"> melt blending</a> </p> <a href="https://publications.waset.org/abstracts/26194/thermo-mechanical-properties-of-pbi-fiber-reinforced-hdpe-composites-effect-of-fiber-length-and-composition" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/26194.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">365</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">1279</span> A Comparative Study on Indian and Greek Cotton Fiber Properties Correlations</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Md.%20Nakib%20Ul%20Hasan">Md. Nakib Ul Hasan</a>, <a href="https://publications.waset.org/abstracts/search?q=Md.%20Ariful%20Islam"> Md. Ariful Islam</a>, <a href="https://publications.waset.org/abstracts/search?q=Md.%20Sumon%20Miah"> Md. Sumon Miah</a>, <a href="https://publications.waset.org/abstracts/search?q=Misbah%20Ul%20Hoque"> Misbah Ul Hoque</a>, <a href="https://publications.waset.org/abstracts/search?q=Bulbul%20Ahmed"> Bulbul Ahmed</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The variability of cotton fiber characteristics has always been influenced by origin, weather conditions, method of culturing, and harvesting. Spinners work tirelessly to ensure consistent yarn quality by using the different origins of fibers to maximizes the profit margin. Spinners often fail to select desired raw materials of various origins to achieve an appropriate mixing plan due to the lack of knowledge on the interrelationship among fiber properties. The purpose of this research is to investigate the correlations among dominating fiber properties such as micronaire, strength, breaking elongation, upper half mean length, length uniformity index, short fiber index, maturity, reflectance, and yellowness. For this purpose, fiber samples from 500 Indian cotton bales and 350 Greek cotton bales were collected and tested using the high volume instrument (HVI). The fiber properties dataset was then compiled and analyzed using python 3.7 to determine the correlations matrix. Results show that Indian cotton fiber have highest correlation between strength-mat = 0.84, followed by SFI-Unf =-0.83, and Neps-Unf = -0.72. Greek cotton fiber, in contrast, have highest correlation between SFI-Unf =-0.98, followed by SFI-Mat = 0.89, +b-Len = 0.84, and Str-Mat = 0.74. Overall, the Greek cotton fiber showed a higher correlational matrix than compared to that of Indian cotton fiber. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cotton%20fiber" title="cotton fiber">cotton fiber</a>, <a href="https://publications.waset.org/abstracts/search?q=fiber%20properties%20correlation" title=" fiber properties correlation"> fiber properties correlation</a>, <a href="https://publications.waset.org/abstracts/search?q=Greek%20cotton" title=" Greek cotton"> Greek cotton</a>, <a href="https://publications.waset.org/abstracts/search?q=HVI" title=" HVI"> HVI</a>, <a href="https://publications.waset.org/abstracts/search?q=Indian%20cotton" title=" Indian cotton"> Indian cotton</a>, <a href="https://publications.waset.org/abstracts/search?q=spinning" title=" spinning"> spinning</a> </p> <a href="https://publications.waset.org/abstracts/130187/a-comparative-study-on-indian-and-greek-cotton-fiber-properties-correlations" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/130187.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">163</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">1278</span> Mechanical Properties of Kenaf Reinforced Composite with Different Fiber Orientation </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Y.%20C.%20Ching">Y. C. Ching</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20H.%20Chong"> K. H. Chong</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The increasing of environmental awareness has led to grow interest in the expansion of materials with eco-friendly attributes. In this study, a 3 ply sandwich layer of kenaf fiber reinforced unsaturated polyester with various fiber orientations was developed. The effect of the fiber orientation on mechanical and thermal stability properties of polyester was studied. Unsaturated polyester as a face sheets and kenaf fibers as a core was fabricated with combination of hand lay-up process and cold compression method. Tested result parameters like tensile, flexural, impact strength, melting point, and crystallization point were compared and recorded based on different fiber orientation. The failure mechanism and property changes associated with directional change of fiber to polyester composite were discussed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=kenaf%20fiber" title="kenaf fiber">kenaf fiber</a>, <a href="https://publications.waset.org/abstracts/search?q=polyester" title=" polyester"> polyester</a>, <a href="https://publications.waset.org/abstracts/search?q=tensile" title=" tensile"> tensile</a>, <a href="https://publications.waset.org/abstracts/search?q=thermal%20stability" title=" thermal stability"> thermal stability</a> </p> <a href="https://publications.waset.org/abstracts/11798/mechanical-properties-of-kenaf-reinforced-composite-with-different-fiber-orientation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/11798.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">359</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">1277</span> Separation of Composites for Recycling: Measurement of Electrostatic Charge of Carbon and Glass Fiber Particles</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=J.%20Thirunavukkarasu">J. Thirunavukkarasu</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Poulet"> M. Poulet</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20Turner"> T. Turner</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Pickering"> S. Pickering</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Composite waste from manufacturing can consist of different fiber materials, including blends of different fiber. Commercially, the recycling of composite waste is currently limited to carbon fiber waste and recycling glass fiber waste is currently not economically viable due to the low cost of virgin glass fiber and the reduced mechanical properties of the recovered fibers. For this reason, the recycling of hybrid fiber materials, where carbon fiber is combined with a proportion of glass fiber, cannot be processed economically. Therefore, a separation method is required to remove the glass fiber materials during the recycling process. An electrostatic separation method is chosen for this work because of the significant difference between carbon and glass fiber electrical properties. In this study, an experimental rig has been developed to measure the electrostatic charge achievable as the materials are passed through a tube. A range of particle lengths (80-100 µm, 6 mm and 12 mm), surface state conditions (0%SA, 2%SA and 6%SA), and several tube wall materials have been studied. A polytetrafluoroethylene (PTFE) tube and recycled without sizing agent was identified as the most suitable parameters for the electrical separation method. It was also found that shorter fiber lengths helped to encourage particle flow and attain higher charge values. These findings can be used to develop a separation process to enable the cost-effective recycling of hybrid fiber composite waste. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=electrostatic%20charging" title="electrostatic charging">electrostatic charging</a>, <a href="https://publications.waset.org/abstracts/search?q=hybrid%20fiber%20composites" title=" hybrid fiber composites"> hybrid fiber composites</a>, <a href="https://publications.waset.org/abstracts/search?q=recycling" title=" recycling"> recycling</a>, <a href="https://publications.waset.org/abstracts/search?q=short%20fiber%20composites" title=" short fiber composites"> short fiber composites</a> </p> <a href="https://publications.waset.org/abstracts/138679/separation-of-composites-for-recycling-measurement-of-electrostatic-charge-of-carbon-and-glass-fiber-particles" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/138679.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">129</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">1276</span> Preparation of Activated Carbon from Lignocellulosic Precursor for Dyes Adsorption</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=H.%20Mokaddem">H. Mokaddem</a>, <a href="https://publications.waset.org/abstracts/search?q=D.%20Miroud"> D. Miroud</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20Azouaou"> N. Azouaou</a>, <a href="https://publications.waset.org/abstracts/search?q=F.%20Si-Ahmed"> F. Si-Ahmed</a>, <a href="https://publications.waset.org/abstracts/search?q=Z.%20Sadaoui"> Z. Sadaoui</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The synthesis and characterization of activated carbon from local lignocellulosic precursor (Algerian alfa) was carried out for the removal of cationic dyes from aqueous solutions. The effect of the production variables such as impregnation chemical agents, impregnation ratio, activation temperature and activation time were investigated. Carbon obtained using the optimum conditions (CaCl2/ 1:1/ 500°C/2H) was characterized by various analytical techniques scanning electron microscopy (SEM), infrared spectroscopic analysis (FTIR) and zero-point-of-charge (pHpzc). Adsorption tests of methylene blue on the optimal activated carbon were conducted. The effects of contact time, amount of adsorbent, initial dye concentration and pH were studied. The adsorption equilibrium examined using Langmuir, Freundlich, Temkin and Redlich–Peterson models reveals that the Langmuir model is most appropriate to describe the adsorption process. The kinetics of MB sorption onto activated carbon follows the pseudo-second order rate expression. The examination of the thermodynamic analysis indicates that the adsorption process is spontaneous (ΔG ° < 0) and endothermic (ΔH ° > 0), the positive value of the standard entropy shows the affinity between the activated carbon and the dye. The present study showed that the produced optimal activated carbon prepared from Algerian alfa is an effective low-cost adsorbent and can be employed as alternative to commercial activated carbon for removal of MB dye from aqueous solution. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=activated%20carbon" title="activated carbon">activated carbon</a>, <a href="https://publications.waset.org/abstracts/search?q=adsorption" title=" adsorption"> adsorption</a>, <a href="https://publications.waset.org/abstracts/search?q=cationic%20dyes" title=" cationic dyes"> cationic dyes</a>, <a href="https://publications.waset.org/abstracts/search?q=Algerian%20alfa" title=" Algerian alfa"> Algerian alfa</a> </p> <a href="https://publications.waset.org/abstracts/49655/preparation-of-activated-carbon-from-lignocellulosic-precursor-for-dyes-adsorption" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/49655.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">228</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">1275</span> Preparation of Water Hyacinth and Oil Palm Fiber for Plastic Waste Composite</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Pattamaphorn%20Phuangngamphan">Pattamaphorn Phuangngamphan</a>, <a href="https://publications.waset.org/abstracts/search?q=Rewadee%20Anuwattana"> Rewadee Anuwattana</a>, <a href="https://publications.waset.org/abstracts/search?q=Narumon%20Soparatana"> Narumon Soparatana</a>, <a href="https://publications.waset.org/abstracts/search?q=Nestchanok%20Yongpraderm"> Nestchanok Yongpraderm</a>, <a href="https://publications.waset.org/abstracts/search?q=Atiporn%20Jinpayoon"> Atiporn Jinpayoon</a>, <a href="https://publications.waset.org/abstracts/search?q=Supinya%20Sutthima"> Supinya Sutthima</a>, <a href="https://publications.waset.org/abstracts/search?q=Saroj%20Klangkongsub"> Saroj Klangkongsub</a>, <a href="https://publications.waset.org/abstracts/search?q=Worapong%20Pattayawan"> Worapong Pattayawan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This research aims to utilize the agricultural waste and plastic waste in Thailand in a study of the optimum conditions for preparing composite materials from water hyacinth and oil palm fiber and plastic waste in landfills. The water hyacinth and oil palm fiber were prepared by alkaline treatment with NaOH (5, 15 wt%) at 25-60 °C for 1 h. The treated fiber (5 and 10 phr) was applied to plastic waste composite. The composite was prepared by using a screw extrusion process from 185 °C to 200 °C with a screw speed of 60 rpm. The result confirmed that alkaline treatment can remove lignin, hemicellulose and other impurities on the fiber surface and also increase the cellulose content. The optimum condition of composite material is 10 phr of fiber coupling with 3 wt% PE-g-MA as compatibilizer. The composite of plastic waste and oil palm fiber has good adhesion between fiber and plastic matrix. The PE-g-MA has improved fiber-plastic interaction. The results suggested that the composite material from plastic waste and agricultural waste has the potential to be used as value-added products. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=agricultural%20waste" title="agricultural waste">agricultural waste</a>, <a href="https://publications.waset.org/abstracts/search?q=waste%20utilization" title=" waste utilization"> waste utilization</a>, <a href="https://publications.waset.org/abstracts/search?q=biomaterials" title=" biomaterials"> biomaterials</a>, <a href="https://publications.waset.org/abstracts/search?q=cellulose%20fiber" title=" cellulose fiber"> cellulose fiber</a>, <a href="https://publications.waset.org/abstracts/search?q=composite%20material" title=" composite material"> composite material</a> </p> <a href="https://publications.waset.org/abstracts/141733/preparation-of-water-hyacinth-and-oil-palm-fiber-for-plastic-waste-composite" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/141733.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">422</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">1274</span> Overview of Fiber Optic Gyroscopes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Abdo">M. Abdo</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Elghandour"> Ahmed Elghandour</a>, <a href="https://publications.waset.org/abstracts/search?q=Khairy%20Eltahlawy"> Khairy Eltahlawy</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Shalaby"> Mohamed Shalaby</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A key development in the field of inertial sensors, fiber-optic gyroscopes (FOGs) are currently thought to be a competitive alternative to mechanical gyroscopes for inertial navigation and control applications. For the past few years, research and development efforts have been conducted all around the world using the FOG as a crucial sensor for high-accuracy inertial navigation systems. The main fundamentals of optical gyros were covered in this essay, followed by discussions of the main types of optical gyros—fiber optic gyroscopes and ring laser gyroscopes—and comparisons between them. We also discussed different types of fiber optic gyros, including interferometric, resonator, and brillion fiber optic gyroscopes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=mechanical%20gyros" title="mechanical gyros">mechanical gyros</a>, <a href="https://publications.waset.org/abstracts/search?q=ring%20laser%20gyros" title=" ring laser gyros"> ring laser gyros</a>, <a href="https://publications.waset.org/abstracts/search?q=interferometric%20fiber%20optic%20gyros" title=" interferometric fiber optic gyros"> interferometric fiber optic gyros</a>, <a href="https://publications.waset.org/abstracts/search?q=resonator%20fiber%20optic%20gyros" title=" resonator fiber optic gyros"> resonator fiber optic gyros</a> </p> <a href="https://publications.waset.org/abstracts/168383/overview-of-fiber-optic-gyroscopes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/168383.pdf" 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