Journal articles: 'Plastic engineering (Engineering)'

1

Angel, Michael F. "Re-Engineering Plastic Surgery." Plastic and Reconstructive Surgery 110, no. 5 (October 2002): 1360–61. http://dx.doi.org/10.1097/01.prs.0000024454.91197.aa.

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Angel, Michael F. "Re-Engineering Plastic Surgery." Plastic and Reconstructive Surgery 110, no. 5 (October 2002): 1360–61. http://dx.doi.org/10.1097/00006534-200210000-00028.

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Orlov, G. A. "PLASTIC METAL WORKING ENGINEERING ASSESSMENT." Izvestiya Visshikh Uchebnykh Zavedenii. Chernaya Metallurgiya = Izvestiya. Ferrous Metallurgy 56, no. 3 (March 21, 2015): 11. http://dx.doi.org/10.17073/0368-0797-2013-3-11-14.

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Sterodimas, Aris, Jose De Faria, Wanda Elizabeth Correa, and Ivo Pitanguy. "Tissue Engineering in Plastic Surgery." Annals of Plastic Surgery 62, no. 1 (January 2009): 97–103. http://dx.doi.org/10.1097/sap.0b013e3181788ec9.

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Babafemi, Adewumi, Branko Šavija, Suvash Paul, and Vivi Anggraini. "Engineering Properties of Concrete with Waste Recycled Plastic: A Review." Sustainability 10, no. 11 (October 25, 2018): 3875. http://dx.doi.org/10.3390/su10113875.

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The abundance of waste plastic is a major issue for the sustainability of the environment as plastic pollutes rivers, land, and oceans. However, the versatile behavior of plastic (it is lightweight, flexible, strong, moisture-resistant, and cheap) can make it a replacement for or alternative to many existing composite materials like concrete. Over the past few decades, many researchers have used waste plastic as a replacement for aggregates in concrete. This paper presents a comprehensive review of the engineering properties of waste recycled plastic. It is divided into three sections, along with an introduction and conclusion. The influence of recycled waste plastics on the fresh properties of concrete is discussed first, followed by its influence on the mechanical and durability properties of concrete. Current experimental results have shown that the mechanical and durability properties of concrete are altered due to the inclusion of plastic. However, such concrete still fulfills the requirements of many engineering applications. This review also advocates further study of possible pre-treatment of waste plastic properties for the modification of its surface, shape, and size in order to improve the quality of the composite product and make its use more widespread.

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KANAI, HIDEO. "Engineering plastic materials for precise moldings." Journal of the Japan Society for Precision Engineering 52, no. 2 (1986): 224–30. http://dx.doi.org/10.2493/jjspe.52.224.

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TREMBLAY, JEAN-FRANÇOIS. "A NEW ENGINEERING PLASTIC FROM CHINA." Chemical & Engineering News 88, no. 31 (August 2, 2010): 28–30. http://dx.doi.org/10.1021/cen-v088n031.p028.

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Yamaoka, H., K. Miyata, and O. Yano. "Cryogenic properties of engineering plastic films." Cryogenics 35, no. 11 (November 1995): 787–89. http://dx.doi.org/10.1016/0011-2275(95)90915-3.

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Schowalter, Leo J. "Substrate Engineering With Plastic Buffer Layers." MRS Bulletin 21, no. 4 (April 1996): 45–49. http://dx.doi.org/10.1557/s0883769400035338.

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The advantage that epitaxy offers the electronics and optoelectronics industries is that it allows the possibility of producing precisely controlled layers of very high crystal quality. Heteroepitaxy of different materials offers the promise of tailoring device layers in clever ways that nature did not intend. However unlike fruit juices, nature has made it difficult to epitaxially combine different materials. As the preceding articles have clearly pointed out, it is very difficult to obtain smooth epitaxial layers that are free both of defects and strain when there is a lattice mismatch between the layers and their substrates.As already discussed in this issue, a uniform network of dislocations at the interface between a flat, uniform epitaxial layer and its substrate can completely relieve strain in the majority of the epitaxial layer. This would be a satisfactory situation for many devices so long as the active region of the device could be kept away from the interface. The problem is how to introduce the dislocations in an appropriate way. When an epitaxial layer has a larger lattice parameter than the underlying substrate, a misfit dislocation running along the interface represents a plane of atoms that has been removed from the epitaxial layer. (One would insert a plane of atoms if the epitaxial lattice parameter was smaller. For simplicity however we will continue to assume that the epitaxial layer has a larger lattice parameter.) It is not possible for a whole half plane of atoms, bounded by the dislocation at the interface and the substrate edges along the two sides, to be removed at once. The boundary between where the extra plane of atoms has been removed and where the epitaxial layer has not relaxed yet will represent a threading dislocation. This threading dislocation would continue to move as the size of the misfit dislocation along the interface grows. Ideally it moves all the way out to the substrate edge and vanishes there while the misfit dislocation along the interface would end up extending from one side of the substrate to the other. However other dislocations and other kinds of defects can effectively pin the threading dislocation resulting in an epitaxial layer with many threading dislocations. Unfortunately these threading dislocations are generally detrimental to most kinds of devices. It is precisely this high density of threading dislocations that limits applications of many heteroepitaxial layers.

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Walgenbach, Klaus-J., Mathias Voigt, Artiom W. Riabikhin, Christoph Andree, Dirk J. Schaefer, Thomas J. Galla, and G. Bj�rn Stark. "Tissue engineering in plastic reconstructive surgery." Anatomical Record 263, no. 4 (2001): 372–78. http://dx.doi.org/10.1002/ar.1117.

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Abdulla, Nwzad Abduljabar. "Concrete Encased with Engineering Plastics." Journal of Civil Engineering and Construction 9, no. 1 (February 15, 2020): 31–41. http://dx.doi.org/10.32732/jcec.2020.9.1.31.

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Engineering plastic tubes are economic alternatives for the advanced composite tubing systems. The mechanical behavior of concrete-encased with engineering plastic tube (CFPT) is examined in the present study by testing short-stub CFPT columns under concentric loading. The test parameters include the plastic tube and coarse aggregate/cement ratio (a/c) ratio. Due to the low stiffness of plastic tubes, the cementitious systems have an important role to increase the stiffness of CFPT. For making concrete of consistent strength, a/c ratio is an important criterion since aggregate constitutes more than 70% of concrete. The proportion of this major component of concrete was altered in increments of 0.5 resulting in twelve mixes with a/c ratios from 3 to 8. Due to the limited test data, the mechanical performance of these structures continues to be pursued through experimental methods. The aim of the present study was to investigate experimentally the relationship between the strength of CFPT and a/c ratio which is also affected by variations in other constituent materials. The a/c ratio was the common variable in both control and CFPT specimens. The experimental results show that the ability of the engineering plastic tube in improving the load capacity of CFPT was considerably affected by the a/c ratio increment which yielded a beneficial effect on the tube confinement capacity.

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Sharke, Paul. "Gears from Scratch." Mechanical Engineering 123, no. 12 (December 1, 2001): 40–43. http://dx.doi.org/10.1115/1.2001-dec-1.

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This article discusses plastic gears that are ideally suited to the power transmission demands of a rotary sprinkler. They operate in wet conditions without oil or grease. Despite many advances in plastic gear technology, users of metal gears have not begun trading in all their current cogs for plastic versions. In order to reduce the chance of plastic gears jumping teeth in its sprinkler head, Hunter Irrigation molded an asymmetric tooth on the pinion that drives the ring. According to an expert, mold enough of them and plastic gears eventually compete with, then surpass, the economics of metal gears. Closter, New Jersey-based Intech Corp. has developed a method of cutting gears from plastic to take advantage of the material’s strengths. LNP Engineering Plastics Inc. of Exton, Pennsylvania, makes pellets for manufacturers of plastic parts. Ed Williams, an LNP application development engineer and chairman of the AGMA Plastic Gearing Committee, said that despite limited engineering data for plastic gears, designers can find other ways to determine how well certain materials will suit an application. Compiled wear data exists for plastic based on thrust washer wear tests, for instance.

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Lee, Jung-Hyun, and Woo-Ram Lee. "Joining Condition of Engineering Plastic for Car." Journal of the Korean Society of Precision Engineering 29, no. 1 (January 1, 2012): 96–102. http://dx.doi.org/10.7736/kspe.2012.29.1.096.

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Bockhorn, H., J. Hentschel, A. Hornung, and U. Hornung. "Environmental engineering: Stepwise pyrolysis of plastic waste." Chemical Engineering Science 54, no. 15-16 (July 1999): 3043–51. http://dx.doi.org/10.1016/s0009-2509(98)00385-6.

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15

Wong, Victor W., Kristine C. Rustad, Michael T. Longaker, and Geoffrey C. Gurtner. "Tissue Engineering in Plastic Surgery: A Review." Plastic and Reconstructive Surgery 126, no. 3 (September 2010): 858–68. http://dx.doi.org/10.1097/prs.0b013e3181e3b3a3.

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ITOGA, MASAAKI. "Developments of high performance engineering plastic films." NIPPON GOMU KYOKAISHI 62, no. 8 (1989): 470–78. http://dx.doi.org/10.2324/gomu.62.470.

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Golas, Alyssa Reiffel, Karina A. Hernandez, and Jason A. Spector. "Tissue Engineering for Plastic Surgeons: A Primer." Aesthetic Plastic Surgery 38, no. 1 (December 31, 2013): 207–21. http://dx.doi.org/10.1007/s00266-013-0255-5.

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Kogan, Viktor Vladimirovich, and Larisa Eduardovna Semenova. "Engineering rheology in food industry." Vestnik of Astrakhan State Technical University. Series: Fishing industry 2019, no. 4 (December 13, 2019): 147–56. http://dx.doi.org/10.24143/2073-5529-2019-4-147-156.

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The paper describes the technological processes of the food industry assuring production of a finished product with predetermined properties, where different types of food raw materials and semi-finished products are objects of study of engineering rheology, considering their be-havior at the stage of deformation (compression, twisting, stretching). The processes of mixing and inter-operational transportation of products are interrelated with the viscous-plastic raw materials (dough, minced meat, candy mass) contacting with the working parts of machines. That is why, in order to rationally use and save material resources the selection of process parameters and operating modes should be carried out subject to the rheological properties of the products (shearing, surface, volumetric). These properties have been listed and their nature has been described. The basic shearing characteristics of the raw materials under study have been determined and analyzed. Specific features of the elastic, viscous and plastic properties of the product under stress are considered. The combinations of rheological models of simple idealized bodies are studied: viscous-plastic, elastic-plastic. Equations that describe the flow of various viscous-plastic media are given. The dependence of the effective viscosity on the stress or shear rate for meatball meat from fish is graphically presented. The effect of minced meat humidity on the structural and mechanical properties of meatballs from fresh carp, pike, catfish, and bream has been traced. Rheological characteristics were determined by a rotational viscometer RV-8. Samples were prepared for one specimen from each product by adding a different amount of water, followed by stirring and thermostating. In parallel, the fat content was determined. According to the obtained values of structural and mechanical characteristics, the rheological properties of meatballs have been illustrated in a wide range of variables. From the data obtained it can be inferred that with increasing humidity, the numerical values of all shearing characteristics decrease due to thickening of the liquid interlayers between the product particles, and the rate of the mechanical structure remains practically unchanged.

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19

Yuriz, Yasmin, Tuan Noor Hasanah Tuan Ismail, Ismail Mohamed, and Nik Normunira Mat Hassan. "CHARACTERISTIC PROPERTIES OF PLASTIC WASTES: POSSIBILITY OF REINFORCING MATERIAL FOR SOIL." Jurnal Teknologi 83, no. 4 (June 7, 2021): 127–36. http://dx.doi.org/10.11113/jurnalteknologi.v83.14676.

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The current statistic shows that the percentage of plastic has significantly increased in the landfill and leads to environmental issues due to its non-biodegradable characteristic. However, these challenges can be turned into opportunities by reusing and recycling such waste for civil engineering applications. Hence, the focuses of this paper are to analyze the possibility of utilizing plastic waste in the soil reinforcement field using VOSviewer software and to evaluate the chemical, thermal, physical, and mechanical properties of the plastics (plastic straw, plastic bottle, and plastic bag). The data for this study was collected from the articles published in Scopus. Nevertheless, there are very limited articles that relate soil reinforcement with the thermal, chemical, physical, and mechanical properties of plastic waste. Therefore, this paper aims to evaluate the properties of plastic waste, which were plastic bottles, plastic bags, and plastic straw. The properties of plastic waste have been investigated to ensure it meets the requirement for soil reinforcement technology. The Fourier transform infrared (FTIR) spectra indicated the presence of carbon and hydrogen chains in those plastics waste. The plastic straw, plastic bag, and plastic bottle were degraded at 382°C, 456°C, and 449°C, respectively. This finding indicated that all of these plastics waste were thermally stable in the tropical temperature. Moreover, the densities of the plastics waste were less than 1 g/cm3, which contributes to the lightweight material and it’s very crucial to eliminating the self-loading from the reinforcement material.

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20

Maruyama, T. "Application of engineering plastic films to dichroic mirror." JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN 74, Appendix (1990): 5. http://dx.doi.org/10.2150/jieij1980.74.appendix_5.

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21

Harrell, C. Randall, and Eser Yuksel. "Tissue Repair, Regeneration, and Engineering in Plastic Surgery." Seminars in Plastic Surgery 19, no. 03 (August 2005): 205–6. http://dx.doi.org/10.1055/s-2005-919715.

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Litman, Alan M., Mohan R. Chathampally, and Norman E. Fowler. "Selecting Plastic Parts for Computer-Aided Engineering Analysis." Polymer-Plastics Technology and Engineering 26, no. 3-4 (September 1987): 333–45. http://dx.doi.org/10.1080/03602558708071941.

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23

Hadlock, Tessa, Joseph Vacanti, and Mack Cheney. "Tissue Engineering in Facial Plastic and Reconstructive Surgery." Facial Plastic Surgery 14, no. 03 (1998): 197–203. http://dx.doi.org/10.1055/s-2008-1064345.

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24

Oleinik, Eduard F., Olga B. Salamatina, Serge N. Rudnev, and Serge V. Shenogin. "Plastic deformation and performance of engineering polymer materials." Polymers for Advanced Technologies 6, no. 1 (January 1995): 1–9. http://dx.doi.org/10.1002/pat.1995.220060101.

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Tunik, Alfred. "Handbook on plastic analysis in engineering: Leonid Belenkiy." Ships and Offshore Structures 1, no. 3 (March 2006): 275–77. http://dx.doi.org/10.1533/saos.2006.0116.

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Gould, Daniel J. "Tissue Engineering for Plastic Surgeons: A Primer Commentary." Aesthetic Plastic Surgery 38, no. 1 (December 14, 2013): 222–23. http://dx.doi.org/10.1007/s00266-013-0238-6.

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Bishnoi, Jwala, Vikram Dhillon, and Himanshu Monga. "Evaluation of Engineering Properties of Plastic Modified Bitumen." Indian Journal of Science and Technology 10, no. 26 (June 1, 2017): 1–7. http://dx.doi.org/10.17485/ijst/2017/v10i26/115672.

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Bishnoi, Jwala. "Evaluation of Engineering Properties of Plastic Modified Bitumen." Indian Journal of Science and Technology 10, no. 1 (January 10, 2017): 1–7. http://dx.doi.org/10.17485/ijst/2017/v10i26/91388.

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Rosita, Mardiana, Khoirul Hidayat, and Iffan Maflahah. "Analisis Nilai Tambah Olahan Ikan Peperek (Leiognathus equulus ) Menjadi Ikan Peperek Crispy Menggunakan Metode Value Engineering [Value Added Analysis of Peperek Fish (Leiognathus equulus) Being Peperek Crispy Fish Using Value Engineering Method]." Jurnal Ilmiah Perikanan dan Kelautan 10, no. 1 (June 2, 2018): 15. http://dx.doi.org/10.20473/jipk.v10i1.8367.

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AbstrakIkan peperek merupakan salah satu jenis ikan demersal yang biasa hidup di dasar perairan. Data statistik perikanan tangkap tahun 2015 menunjukkan ikan peperek berkontribusi besar dengan urutan kelima dari 33 jenis ikan lainnya. Penelitian ini bertujuan untuk mengetahui nilai tambah yang diberikan dari pengolahan ikan peperek crispy. Metode yang digunakan yaitu metode value engineering dengan pencarian atlernatif dari beberapa tahap informasi, tahap kreatif, tahap analisis, tahap pengembangan dan tahap rekomendasi. Hasil yang diperoleh dari analisis metode value engineering untuk produk ikan peperek crispy yaitu terdapat lima alternatif meliputi: Alternatif 1 dengan rasa balado, kemasan plastik PP, ukuran ikan sedang dan berat bersih 100–125 gram. Alternatif 2 dengan rasa original, kemasan plastik PP, ukuran ikan sedang dan berat bersih 100–125 gram. Alternatif 3 dengan rasa manis, kemasan plastik PP, ukuran ikan sedang dan berat bersih 100–125 gram. Alternatif 4 dengan rasa balado, kemasan plastik PP, ukuran ikan sedang dan berat bersih 125–150 gram dan Alternatif 5 dengan rasa balado, kemasan toples, ukuran ikan sedang dan berat bersih 100–125 gram. Desain alternatif terpilih dengan menggunakan metode value engineering yaitu alternatif ke 2. Nilai tambah produk ikan peperek crispy adalah Rp. 3.732 per kemasan dengan tingkat keuntungan sebesar 37,32% per kemasan dengan berat 100–125 gram. Abstract Peperek fish is one of the demersal fish species that usually lives in the bottom of the waters, which contributes greatly to the fifth order of 33 other fish species. This study aims to determine the added value provided by the processing of peperek fish crispy. Value engineering method was used to determine alternative method of processing. Several stages were employed namely creative, analysis, development, and recommendation phase. The results obtained from the analysis of value engineering methods for crispy peperek fish products were five alternatives: Alternative 1 was fish crispy with balado flavor, PP plastic packaging, medium fish size and net weight 100-125 gram. Alternative 2 was fish crispy with original taste, PP plastic packaging, medium fish size and net weight 100-125 gram. Alternative 3 was fish crispy with sweet taste, PP plastic packaging, medium fish size and net weight 100 - 125 gram. Alternative 4 was fish crispy with balado flavor, PP plastic packaging, medium fish size and net weight 125-150 gram and Alternative 5 was fish crispy with balado flavor, jar packaging, medium fish size and net weight 100-125 gram. The chosen alternative by value engineering method was the 2nd alternative. The added value of crispy peperek fish in this alternative product was Rp. 3,732 per pack with a profit rate of 37.32% per package weighing 100-125 gram.

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Шаврин, Олег, and Oleg Shavrin. "Nanotechnologies in mechanical engineering." Science intensive technologies in mechanical engineering 1, no. 7 (July 4, 2016): 3–9. http://dx.doi.org/10.12737/20593.

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For the production of structural steel with a nanostructure there are used methods combined into five groups – powder metallurgy, amorphous state crystallization, intensive plastic deformation, surface and volumetric thermo-deformation treatment. The last method is the most effective one for products subjected to cyclic loads and destructed because of fatigue. A limited longevity at loads exceeding fatigue strength increases ten times and more. A thermo-deformation working is carried out at the production of cylindrical spiral springs, cylindrical parts – shafts, axles, mill rollers.

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Stokes, Vijay K. "Thermoplastics as Engineering Materials: The Mechanics, Materials, Design, Processing Link." Journal of Engineering Materials and Technology 117, no. 4 (October 1, 1995): 448–55. http://dx.doi.org/10.1115/1.2804738.

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While the use of plastics has been growing at a significant pace because of weight reduction, ease of fabrication of complex shapes, and cost reduction resulting from function integration, the engineering applications of plastics have only become important in the past fifteen years. An inadequate understanding of the mechanics issues underlying the close coupling among the design, the processing (fabrication), and the assembly with these materials is a barrier to their use in structural applications. Recent progress on some issues relating to the engineering uses of plastics is surveyed, highlighting the need for a better understanding of plastics and how processing affects the performance of plastic parts. Topics addressed include the large deformation behavior of ductile resins, fiber orientation in chopped-fiber filled materials, structural foams, random glass mat composites, modeling of thickness distributions in blow-molded and thermoformed parts, dimensional stability (shrinkage, warpage, and residual stresses) in injection-molded parts, and welding of thermoplastics.

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Chen, Yanfei, Tongjing Xia, Ye Zhang, Lulu Li, Mingchang He, and Hong Zhang. "The Reform of Elastic-plastic Mechanics Teaching for Petroleum Engineering Related Majors." Review of Educational Theory 3, no. 4 (November 4, 2020): 25. http://dx.doi.org/10.30564/ret.v3i4.2316.

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“Elastic-plastic Mechanics” is an important course for undergraduates and postgraduates of general engineering majors. However, the theoretical derivation of equations is complex, and the connection with engineering practice is inadequate. Therefore, teaching becomes difficult and boring for a number of students. Firstly, this paper introduces the importance of Elastic-plastic Mechanics for petroleum engineering related majors. Based on the recent teaching experience, the teaching reform of Elastic-plastic Mechanics course is carried out focusing on teaching method and learning content, and a discussion teaching mode based on students’ independent discussion and engineering cases is formed. Remarkable results have been achieved in improving students’ learning efficiency and classroom teaching effect. Furthermore, students’ comprehensive ability of independent innovation and practice is enhanced.

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Smith, Zan, and Maribeth Fletcher. "Gearing Up With Plastic." Mechanical Engineering 120, no. 09 (September 1, 1998): 76–79. http://dx.doi.org/10.1115/1.1998-sep-5.

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This article explains the engineering design concepts behind injection-molded gears that make drives lighter, quieter, and less costly. As the experience base with plastic gears has grown, computer-aided-design (CAD) tools have advanced. The most powerful advantages of plastic gears may be the design opportunities they afford. Gear geometries overlooked by designers used to metal are often easy to mold in plastic, and they can reduce drive size, weight, and cost. The operating speed of plastic gears obviously impacts operating temperature. However, rapid-loading rates can also affect material properties. For some materials, the faster a tooth is loaded, the higher the effective modulus and strength. It is highlighted that designers of plastic gears should also pay special attention to shaft attachment. Bore tolerances naturally impact true center distances, sometimes resulting in loss of proper gear action. Problems with prototypes can also tempt gear designers to change resins—a costly mistake given the different shrinkage characteristics of various plastics. It is better to rework the tooth profile than switch the material, unless it is clear that the wrong material was chosen.

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Li, Yan Zhe, Duo Wang Fan, and Jia Ming Chen. "Simulation and Analysis for Electromagnetic Shielding Performance of Magnesium." Advanced Materials Research 211-212 (February 2011): 705–9. http://dx.doi.org/10.4028/www.scientific.net/amr.211-212.705.

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magnesium and magnesium alloys are green engineering materials for 21st century. In the paper, the model of electromagnetic shielding performance of Magnesium is built according to different media around magnesium. If magnesium is plated on engineering plastic board, the simulations show that the property of magnesium to reflect electric-field component is a little better than the property of magnesium to reflect magnetic-field component. Whether magnesium is surrounded with air medium, or magnesium is plated in engineering plastics board, the total shielding effectiveness of magnesium varies with thickness of magnesium and frequency of electromagnetic wave.

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张, 友根. "Analysis and Research of Green Plastic Engineering Innovation Drive Based on the Strategy of the “New Normal” of Automobile Plastic Engineering." Mechanical Engineering and Technology 04, no. 01 (2015): 28–71. http://dx.doi.org/10.12677/met.2015.41004.

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Sun, Chun Hua, Zhu Wei, and Li Li Yang. "Reverse Engineering in the Design of a Plastic Part." Advanced Materials Research 201-203 (February 2011): 814–17. http://dx.doi.org/10.4028/www.scientific.net/amr.201-203.814.

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Reverse engineering has been widely recognized as a central step in a product cycle of designing and manufacturing. However, major problems with current reverse engineering technology are the inefficient surface reconstruction process, lack of digitizing accuracy control in the data digitization process, and bottlenecks resulted from huge amounts of digitized surface points in the surface modeling process. Moreover, under this limitation, modern concurrent engineering concepts are difficult to be applied to obtain optimal product process. This paper presents a case study on the reverse designing of a plastic part. The study applies a developed reverse engineering approach to reconstruct surface--a series of advanced algorithms, including segmentation, simplification, extraction, fitting curves and reconstruction surface. Two orthogonal curves, which are fitted from the digitized points, are taken as base curves of a ruled surface patch. All surface patches are merged into a whole surface by trimming and chamfering. A CAD model is constructed based on the whole surface. The approach integrates surface digitizing and modeling processes of a plastic part into surface reconstruction process. Using the approach, accurate product CAD model can be efficiently generated and the product design cycle of plastic parts can be successfully linked.

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Loehr, J. Erik, John J. Bowders, Jacob W. Owen, Lee Sommers, and Willie Liew. "Slope Stabilization with Recycled Plastic Pins." Transportation Research Record: Journal of the Transportation Research Board 1714, no. 1 (January 2000): 1–8. http://dx.doi.org/10.3141/1714-01.

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A scheme to stabilize minor slope instabilities is currently being developed. The scheme uses a distributed network of “pins” fabricated from recycled plastics and other waste materials to provide positive reinforcement of a soil mass. Although the application is similar to stabilization of slopes with soil nails or micropiles, significant modifications to conventional design and construction are necessary to account for the reduced strength and increased ductility and creep exhibited by plastic materials compared with concrete and steel. Using recycled plastics has the advantage of providing reinforcing members with low susceptibility to degradation and provides a market for materials that otherwise might be buried in a landfill. An extensive investigation is under way to evaluate the potential for using recycled plastic pins (RPPs) to stabilize minor slope failures. This evaluation includes quantification of appropriate material and engineering properties of RPPs, evaluation of RPP resistance to degradation in various environments, development and evaluation of suitable mechanisms for installing RPPs, evaluation of RPP resistance to driving stresses, development of a design procedure that accounts for the reduced structural capacity of RPPs compared with steel or concrete members, and installation and monitoring of several full-scale field demonstration sites. The ongoing evaluation program that is described focuses on laboratory tests to determine fundamental engineering and material properties, field driving trials to evaluate potential driving mechanisms, and preliminary development of a suitable procedure for designing RPP stabilization schemes.

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Eldin, Neil N., and Ahmed B. Senouci. "Engineering properties of rubberized concrete." Canadian Journal of Civil Engineering 19, no. 5 (October 1, 1992): 912–23. http://dx.doi.org/10.1139/l92-103.

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Growing piles of discarded tires are potential sources of fire and health hazards. The current disposal methods are wasteful and costly. As a possible solution to the problem of scrap-tire disposal, an experimental study was conducted to examine the potential use of rubber aggregate (tire chips and crumb rubber) as mineral aggregate substitute in Portland cement concrete mixes. The research focused on determining the strength characteristics of rubberized concrete and examined the relationship between the size, percentage, and shape of rubber aggregate and the strength measured.Rubberized concrete was found to possess good esthetics, acceptable workability, and a smaller unit weight than plain concrete. However, it exhibited low compressive and tensile strengths and lower resistance to repeated freezing and thawing cycles than that of plain concrete. A statistical analysis of the experimental data suggested that only the percentage by volume of rubber in the mix has a significant effect on strength. The size and shape was found insignificant. Unlike plain concrete, rubberized concrete did not demonstrate the typical brittle failure. It exhibited a ductile, plastic failure, and showed the ability to absorb a large amount of plastic energy under compressive and tensile loads. Key words: rubberized concrete, concrete properties, compression, durability, failure, modulus of elasticity, slump, tension, toughness, workability.

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Zheng, Xian Chun, Zhi Qiang Li, and Si Zhong Sun. "Application of Formwork Technology in Engineering." Applied Mechanics and Materials 170-173 (May 2012): 3141–44. http://dx.doi.org/10.4028/www.scientific.net/amm.170-173.3141.

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Installing and dismantling the formwork are not easy in cast-in-situ multi-ribbed slab construction,the formwork technology overcomes the difficult problem.This paper mainly introduces the construction technology and quality standards of the plastic formwork.Through the engineering practice,the author sums up the advantages of this technology.

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Allan, K. "Pioneering plastic [plastics industry]." Engineering & Technology 4, no. 1 (January 16, 2009): 76–77. http://dx.doi.org/10.1049/et.2009.0115.

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Fauzi, Achmad, Zuraidah Djauhari, and Usama Juniansyah Fauzi. "Soil Engineering Properties Improvement by Utilization of Cut Waste Plastic and Crushed Waste Glass as Additive." International Journal of Engineering and Technology 8, no. 1 (January 2016): 15–18. http://dx.doi.org/10.7763/ijet.2016.v6.851.

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Fauzi, Achmad, Zuraidah Djauhari, and Usama Juniansyah Fauzi. "Soil Engineering Properties Improvement by Utilization of Cut Waste Plastic and Crushed Waste Glass as Additive." International Journal of Engineering and Technology 8, no. 1 (2016): 15–18. http://dx.doi.org/10.7763/ijet.2016.v8.851.

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Bowders, John J., J. Erik Loehr, Hani Salim, and Cheng-Wei Chen. "Engineering Properties of Recycled Plastic Pins for Slope Stabilization." Transportation Research Record: Journal of the Transportation Research Board 1849, no. 1 (January 2003): 39–46. http://dx.doi.org/10.3141/1849-05.

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An ongoing demonstration project has shown the feasibility of using slender (90 mm × 90 mm × 2.4 m) recycled plastic pins (RPPs) for in situ reinforcement of slopes and embankments. The technique uses RPPs driven into the face of the slope in a grid pattern to intercept the sliding surface and “pin” the slope. The engineering properties of the RPPs, including the compressive, tensile, and flexural strength along with creep behavior, dictate the design and construction practice. Constituent materials and manufacturing processes are highly variable among the more than 30 U.S. manufacturers. A specification for acceptance of the members is needed; however, before an effective specification can be developed, the appropriate engineering properties and design requirements for the RPPs must be determined. The engineering properties and driving performance of four different types of members were evaluated and are reported on. Additional evaluations are under way.

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Austin, Harry P., Mark D. Allen, Bryon S. Donohoe, Nicholas A. Rorrer, Fiona L. Kearns, Rodrigo L. Silveira, Benjamin C. Pollard, et al. "Characterization and engineering of a plastic-degrading aromatic polyesterase." Proceedings of the National Academy of Sciences 115, no. 19 (April 17, 2018): E4350—E4357. http://dx.doi.org/10.1073/pnas.1718804115.

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Poly(ethylene terephthalate) (PET) is one of the most abundantly produced synthetic polymers and is accumulating in the environment at a staggering rate as discarded packaging and textiles. The properties that make PET so useful also endow it with an alarming resistance to biodegradation, likely lasting centuries in the environment. Our collective reliance on PET and other plastics means that this buildup will continue unless solutions are found. Recently, a newly discovered bacterium, Ideonella sakaiensis 201-F6, was shown to exhibit the rare ability to grow on PET as a major carbon and energy source. Central to its PET biodegradation capability is a secreted PETase (PET-digesting enzyme). Here, we present a 0.92 Å resolution X-ray crystal structure of PETase, which reveals features common to both cutinases and lipases. PETase retains the ancestral α/β-hydrolase fold but exhibits a more open active-site cleft than homologous cutinases. By narrowing the binding cleft via mutation of two active-site residues to conserved amino acids in cutinases, we surprisingly observe improved PET degradation, suggesting that PETase is not fully optimized for crystalline PET degradation, despite presumably evolving in a PET-rich environment. Additionally, we show that PETase degrades another semiaromatic polyester, polyethylene-2,5-furandicarboxylate (PEF), which is an emerging, bioderived PET replacement with improved barrier properties. In contrast, PETase does not degrade aliphatic polyesters, suggesting that it is generally an aromatic polyesterase. These findings suggest that additional protein engineering to increase PETase performance is realistic and highlight the need for further developments of structure/activity relationships for biodegradation of synthetic polyesters.

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Zhao, Jun, Yin Wei Yao, Zhong Ping Tang, and Feng Tian. "Application and Analysis of GMT Plastic Template in Engineering." Advanced Materials Research 639-640 (January 2013): 1253–58. http://dx.doi.org/10.4028/www.scientific.net/amr.639-640.1253.

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According to a construction case of residential buildings in Ningbo, this paper describes the technology performance, construction technology and innovation of the GMT template. Comparison with other common template, it has proved that this new building template has the advantages of smooth surface, easy remolding, light weight, good corrosion resistance, formwork turnover frequency and recyclable. So it has a good application value.

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Breitbart, Arnold S., Daniel A. Grande, and James M. Mason. "Tissue engineering and gene therapy in facial plastic surgery." Current Opinion in Otolaryngology & Head and Neck Surgery 6, no. 4 (August 1998): 226–31. http://dx.doi.org/10.1097/00020840-199808000-00004.

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Levchik, Sergei V., Danielle A. Bright, Gerald R. Alessio, and Sophia Dashevsky. "New halogen-free fire retardant for engineering plastic applications." Journal of Vinyl and Additive Technology 7, no. 2 (June 2001): 98–103. http://dx.doi.org/10.1002/vnl.10274.

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Ward, D. K., D. Farkas, J. Lian, W. A. Curtin, J. Wang, K. S. Kim, and Y. Qi. "Engineering size-scaling of plastic deformation in nanoscale asperities." Proceedings of the National Academy of Sciences 106, no. 24 (June 3, 2009): 9580–85. http://dx.doi.org/10.1073/pnas.0900804106.

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Consoli, Nilo Cesar, Júlio Portella Montardo, Pedro Domingos Marques Prietto, and Giovana Savitri Pasa. "Engineering Behavior of a Sand Reinforced with Plastic Waste." Journal of Geotechnical and Geoenvironmental Engineering 128, no. 6 (June 2002): 462–72. http://dx.doi.org/10.1061/(asce)1090-0241(2002)128:6(462).

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Wang, Wei-Qiang, Ai-Ju Li, Pei-Ning Li, and Ding-Yi Ju. "An engineering approach for notch elastic-plastic fracture analysis." International Journal of Pressure Vessels and Piping 60, no. 1 (January 1994): 1–16. http://dx.doi.org/10.1016/0308-0161(94)90107-4.

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Journal articles on the topic 'Plastic engineering (Engineering)'

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