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Major engineering fields

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  • Poly(ethylene terephthalate) (PET) is one of the world’s five major engineering plastics and is widely used in various fields. At present, the main catalysts used in the synthesis of PET are antimony, titanium, and aluminum metal compounds. Among them, antimony-based catalysts are poisonous and the titanium-based catalyst products are relatively yellow in hue. The research results show that when the molar content of catalyst is 0.05% and the reaction temperature is 280 ℃ for 150 min, the product obtained is relatively excellent.

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  • Management of two critical and important resources viz., Land and water in agriculture has become a challenging task for many reasons. In rainfed and irrigated agriculture, land development plays a key role because of undulating topography of the soil surface. It has a major impact on the germination, water saving and crop yield. Conventional methods of land levelling are more cumbersome and not so precise and repetitive in nature and mainly depend on the skills of the driver.

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  • The silk fiber of cocoons of silkworms of both the families consists of two major proteins, fibroin and sericin. The fibrion forms central core and sericin forms envelop. Fibroin and sericin, of mulberry silkworm, Bombyx mori deserve appreciable physioc-chemical properties and therefore, they are now recognized as excellent biomaterials in the field of tissue engineering, biotechnology and therapy. Sericin contributes about 20-30 per cent of total cocoon weight. It is characterized by its high content of serine and 18 amino acids, including essential amino acids.

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  • The present paper follows the same approach as that of Turner and Bowen (1999). The Multinomial regression is specified as P ðMi ¼ jÞ¼ðexpðbj XiÞ= P5 j1 expðbj XiÞÞ, where P (Mi¼ j) denotes the probability of choosing outcome j, the particular course/major choice that categorizes different disciplines. This response variable is specified with five categories: such as medicine, engineering, other professional courses, science and humanities.

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  • Sugarcane (Saccharum officinarum L.) is one of the staple sources of sweetening in the world and is of substantial importance to the economy of several sugarcane producing countries. Sugarcane is a major cash crop cultivated in many parts of the world, especially in the tropics. Commercial sugarcane (Poaceae), mainly the complex aneuploidy, polyploidyinterspecific hybrids of Saccharum officinarum and S. spontaneum is a major field crop accounting for about 85 per cent of sugar production worldwide.

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  • India has been experiencing major changes in agricultural extension system since the beginning of the 21st century. The reforms included both demand and supply side measures. Information and Communication Technology (ICT) has become a global tool often used by individuals, organizations, governments and inter-governmental organizations for personal or official activities. Its application cut across all fields of human endeavor like medicine, commerce, engineering, architecture, education, library services, and agriculture.

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  • Pea (Pisum sativum L.) is a multipurpose leguminous crop that can provide food and fodder for the small-scale farmer in subsistence agriculture. It is also known as ‘Dry Pea’ and it is called as ‘Matar’ in India. India is one of the largest producers of field pea in the world and stands at the 5th place in the list of major field pea producers. In India peas are mainly grown in Uttar Pradesh, Madhya Pradesh, Himachal Pradesh and Jharkhand. Pea is widely cultivated and processed in India predominantly done manually.

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  • The samples are important in various fields including nuclear technology. Methods: Samples were neutron irradiated using nuclear reactors, and the radioactive assay was carried out using high-resolution gamma-ray spectrometry. Major to trace mass fractions were determined using both relative and internal monostandard (IM) NAA methods as well as OES methods

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  • This paper presents a new method of interference reduction in tilt measurement with analog accelerometers. The tilt angles are necessary for various fields, including robotics, automation, and biomedical engineering. Measuring the tilt angles, pitch and roll, with analog accelerometers allows us to overcome major limitations of digital sensors; however, the effects of electromagnetic interference should be considered.

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  • Chondroitin sulfate (CS) is a sulfated glycosaminoglycan (GAG) that is usually found attached to proteins as part of a proteoglycan. The use of CS-based biomaterials in the field of tissue engineering applications has been intensively growing over the past decades because CS is a biopolymer with the major advantages of being biodegradable, biocompatible, easily available, and highly versatile.

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  • Scientists often have the feeling that, through their work, they are learning about some aspect of themselves. Physicists see this connection in their work; so do, for example, psychologists and chemists. In the study of robotics, the connection between the field of study and ourselves is unusually obvious. And, unlike a science that seeks only to analyze, robotics as currently pursued takes the engineering bent toward synthesis. Perhaps it is for these reasons that the field fascinates so many of us.

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  • Split wedge gate valves, as shown in Figure 7, are of the ball and socket design. These are self-adjusting and self- aligning to both seating surfaces. The disk is free to adjust itself to the seating surface if one-half of the disk is slightly out of alignment because of foreign matter lodged between the disk half and the seat ring. This type of wedge is suitable for handling noncondensing gases and liquids at normal temperatures, particularly corrosive liquids.

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  • This book is written for those physicists who want to work on Wall Street but have not bothered to read anything about Finance. This is a crash course that the author, a physicist himself, needed when he landed a financial data analyst job and became fascinated with the huge data sets at his disposal. More broadly, this book addresses the reader with some background in science or engineering (college-level math helps) who is willing to learn the basic concepts and quantitative methods used in modern finance.

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  • Diesel engines, also known as CI engines, possess a wide field of applications as energy converters because of their higher efficiency. However, diesel engines are a major source of NOX and particulate matter (PM) emissions. Because of its importance, five chapters in this book have been devoted to the formulation and control of these pollutants. The world is currently experiencing an oil crisis. Gaseous fuels like natural gas, pure hydrogen gas, biomass-based and coke-based syngas can be considered as alternative fuels for diesel engines.

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  • In any technological field, both short-term and longterm research can be aided by considering where that technology might be ten, twenty, fifty years down the pike. In the field of natural language interactive systems, a 21 year vision is particularly apt to consider, since it brings us to the year 2001. One wellknown vision [I] of 2001 includes the famous computer named Hal - one offspring, so to speak, of the major theoretical and engineering breakthrough in computers that Clarke records as having occurred in the early 1980's. ...

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  • New specialties sometimes combine with the traditional fields and form new branches - for example Earth Systems Engineering and Management involves a wide range of subject areas including anthropology, engineering, environmental science, ethics and philosophy. A new or emerging area of application will commonly be defined temporarily as a permutation or subset of existing disciplines; there is often gray area as to when a given sub-field becomes large and/or prominent enough to warrant classification as a new "branch.

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  • New specialties sometimes combine with the traditional fields and form new branches - for example Earth Systems Engineering and Management involves a wide range of subject areas including anthropology, engineering, environmental science, ethics and philosophy. A new or emerging area of application will commonly be defined temporarily as a permutation or subset of existing disciplines; there is often gray area as to when a given sub-field becomes large and/or prominent enough to warrant classification as a new "branch.

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  • Elon University offers more than 50 major fields of study leading to the bachelor of arts, bachelor of fine arts or bachelor of science degree. The university also offers a dual- degree engineering program in cooperation with Columbia University, Penn State University, Georgia Tech, North Carolina A&T State University, North Carolina State University, University of Notre Dame, University of South Carolina, Virginia Tech and Washington University in St. Louis.

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  • The initiating problem is unstructured design processes and vague descriptions of the form problems in the students’ critique of each other's product proposals, and very vague presentations of the product's aesthetic qualities in their reports. The problem must be seen in relation to the fact that the majority of the students can express themselves clearly in engineering fields and that design methodology is based on technical parameters.

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  • For 30 years, the field of medical device technology has struggled to identify the specifications for optimal biocompatibility. For the vast majority of devices, clinical experience has eventually confirmed that the best performance is achieved when biocom-patibility is equated with biological safety that is materials are selected on the basis of maximizing bioinertness and minimizing toxicity and irritation.

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