Xem 1-20 trên 97 kết quả Fabrication processes
  • In this document Plastic and Polymer Composite - Fabrication Processes, there are many contents: injection molding (or compression or transfer), extrusion, thermo-forming, blow molding (injection blow molding with preforms or extrusion blow molding with parison), rotational molding (combination of 3 and 4).

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  • 3D printers are the fastest growing type of personal manufacturing machine, and perhaps the best publicized by the popular press. 3D printers use as an additive process, meaning they make objects by systematically depositing a chosen raw material in layers. Somewhat similar in concept to that of an inkjet printer that orchestrates different colored print cartridges to form an image onto paper, the most common household 3D printing process involves a “print head” that works with any material that can be extruded, or squirted through a nozzle.

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  • Lithography, the fundamental fabrication process of semiconductor devices, is playing a critical role in micro- and nano-fabrications and the revolution in high density integrated circuits. Traditional optical lithography (photolithography) including contact and project photolithography has contributed significantly to the semiconductor device advancements.

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  • This volume covers advanced polymer processing operations and is designed to provide a description of some of the latest industry developments for unique products and fabrication methods. Contributors for this volume are from both industry and academia from the international community. This book contains nine chapters covering advanced processing applications and technologies.

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  • This dissertation will outline solution processable materials and fabrication techniques to manufacture flexible electronic devices from them. Conductive ink formulations and inkjet printing of gold and silver on plastic substrates were examined. Line patterning and mask printing methods were also investigated as a means of selective metal deposition on various flexible substrate materials. These solution-based manufacturing methods provided deposition of silver, gold and copper with a controlled spatial resolution and a very high electrical conductivity.

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  • A single assessment event is not appropriate. On the job assessment should be included as part of the assessment process wherever possible. Where assessment occurs off the job, judgement must consider evidence of the candidate's performance in a productive work environment that includes a sufficient range of appropriate tasks and materials to cover the scope of application for this unit. Assessors should gather a range of evidence that is valid, sufficient, current and authentic.

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  • The aim of the study is to make the process of stretch pattern construction more transparent in CAD applications for the designer/technician, fabric technologist and global manufacturer, and ultimately to offer better fitting and more comfortable garments for the customer.

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  • The hole closing reported in this letter is certainly not caused by deposition of carbon-rich material by the electron beam, a common phenomenon in electron microscopy. The observation that large pores expand is in direct contradiction with potential contamination growth. Secondly, electron-energy-loss spectra (EELS) locally obtained on the material that filled a nanopore clearly show the presence of silicon and oxygen,but the absence of any carbon (detection limit was less than 2%).

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  • This book is unique because it concentrates on work designed and built by emerging and newly defined practices that, with a do-it-yourself attitude, regularly pioneer techniques and experiment with fabrication processes on a small scale. The means by which these projects were realized are within the reach of many practitioners and students. Here, the architectural project is a form of applied design research. These architects seek to leverage digital design and manufacturing for perceptual, spatial, and formal effect.

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  • It is inconceivable today to imagine designing buildings without the use of computers. They are used at every step of the architectural process, from conceptual design to construction. Three­ dimensional modeling and visualization, generative form finding, scripted modulation systems, structura and thermal analyses, project management and coordination, and file-to-factory production are just some of the digital practices employed by architects and building consultants.

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  • Decisions as to which machine and method to use must marry design intent with machine capability. It has therefore become necessary for digitally savvy architects to understand how these tools work, what materials they are best suited for, and where in the tooling process the possibilities lie. Along these lines, architects have begun to couple form with method and revisit tectonic systems as a means to produce material effect. They seek to elevate standard building materials perceptually through nonstandard fabrication processes.

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  • Many of the fabrication techniques require use of organic solvents and high temperature. The residues that remains after completion of process can damage cells and nearby tissues. This may also denature the biologically active molecules incorporated within the scaffolds. The gas foaming scaffold fabrication techniques does not require the utilization of organic solvents and high temperature. This technique uses high pressure carbon dioxide gas for the fabrication of highly porous scaffolds.

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  • The field of industrial electronics covers a plethora of problems that must be solved in industrial practice. Electronic systems control many processes that begin with the control of relatively simple devices like electric motors, through more complicated devices such as robots, to the control of entire fabrication processes. An industrial electronics engineer deals with many physical phenomena as well as the sensors that are used to measure them.

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  • Research and development in modern optical and photonic technologies have witnessed quite fast growing advancements in various fundamental and application areas due to availability of novel fabrication and measurement techniques, advanced numerical simulation tools and methods, as well as due to the increasing practical demands. The recent advancements have also been accompanied by the appearance of various interdisciplinary topics.

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  • A Circuits and Systems perspective presents broad and in-depth coverage of the entire field of modern CMOS VLSI Design. The authors draw upon extensive industry and classroom experience to introduce today’s most advanced and effective chip design practices. They present extensively updated coverage of every key element of VLSI design, and illuminate the latest design challenges with 65 nm process examples. This book contains unsurpassed circuit-level coverage, as well as a rich set of problems and worked examples that provide deep practical insight to readers at all levels....

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  • Written by two of the most respected, experienced and well-known researchers and developers in the field (e.g., Kiencke worked at Bosch where he helped develop anti-breaking system and engine control; Nielsen has lead joint research projects with Scania AB, Mecel AB, Saab Automobile AB, Volvo AB, Fiat GM Powertrain AB, and DaimlerChrysler.

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  • The advent of novel materials for electronics, optoelectronics and nanoelectronics holds the promise for new microelectronic device designs and applications across all fields of science and technology. Furthermore, the increasing sophistication of fabrication processes and techniques used in the semiconductor industry has resulted in the ability to produce circuits of greater complexity at remarkably reduced costs, a trend which has been continuing over the past half-century.

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  • Nanotechnology has experienced a rapid growth in the past decade, mostly because of the rapid advances in nano-fabrication techniques employed to fabricate the nanodevices. Nano-fabrication can be divided into two categories: the first is the so-called “bottom up” approach, in which nano-structures are created either by chemical synthesis of nano-wires, nanotubes and nano-particles, or by self-assembly of nano-objects or thin layers to form quasi-periodic arrays or phase separation patterns....

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  • Nearly all textile materials are colored after fabrication and before final finishing. The coloration of fibers and fabrics through dyeing is an integral part of textile manufacturing. This book discusses in detail several emerging topics on textile dyeing. The pretreatment of textiles prior to dyeing is addressed by several authors. Menezes and Choudhari present chemical alternatives to traditional pretreatment, while Tavcer discusses enzyme pretreatment procedures.

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  • This hands-on guide offers practical advice on all aspects of science communication. It features a tightly interwoven fabric of issues: product types, target groups, written communication, visual communication, validation processes, practices of efficient workflow, distribution, promotion, advertising, and much more. Extremely practical, the guide provides the necessary "shortcuts" to produce outreach products of high quality. All concepts are explained with simple terms and illustrative examples while check lists and short "to-the-point" overviews enable rapid progress and quick results.

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