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  • Drawing & Texturising Process

    2018-12-5 · Air jet Texturising: In this method of texturing, yarns led through the turbulent region of a air jet at a rate faster than if is drawn off on the far side of the jet, in the jet, the yarn structure is opened , loops are locked inside and others are locked on the surface of the yarn. An example of this method is the taslam process; Air jet ...

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  • Tribological performance of surface texturing in ...

    2020-9-16 · The use of discontinuous textures on cutting tools still needs further investigation. Textured cutting tools can be beneficial in both wet and dry cutting conditions. The optimization of patterns/grooves depends on cutting conditions and workpiece/tool material. Surface texturing can be successfully used combined with coatings and solid lubricants.

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  • Volume Table of Contents - spiedigitallibrary.org

    A number of chalcogenides and phosphides crystallize with the tetrahedral structure in which the cations and anions are in tetrahedral positions. The II-VI compounds such as ZnS, ZnSe, CdS and CdSe are known to transmit in the far infrared. However, they are soft and decompose in air …

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  • YARNS CLASSIFICATION - G.C.G.-11

    2015-7-20 · AIR JET YARNS. Simple yarns are characterized by uniform size and regular surface. They can be broadly divided into single, ply, cord, and rope yarns. 1.Single yarn is the simplest type of yarn. It is commonly produced by ... There is a wide variety of novelty yarns that are produced using ...

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  • (PDF) PRODUCTION OF AN INNOVATIVE FANCY YARN BY

    Yarn Texturising Technology: Air-jet Texturing and Yarns. Cambridge, England, Woodhead Publishing Limited (CRC Press) 7. Shaikh T. N., & Bhattacharya, S. S., (2011): Deriving an Empirical Formula to Determine the Optimum Level of False-Twist in Mechanically-Crimped Textured Polyester Yarn, Textile Research J., Vol. 81, 19, 1995-2005.

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  • The challenges, achievements and applications of ...

    2021-4-23 · Hence, it can be concluded that large air volumes are generally of less importance for long-term air retention and that density is more impactful. 77 Typically, a feature density of 1–2 × 10 6 mm −2 with a mean distance below 1 μm is considered to be the minimum requirement for long-time air retention. 77 However, having features of dual ...

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  • Journal of The Electrochemical Society, Volume 159,

    The capacity loss determined from the electrochemical investigation has been found proportional to the number of cycles, which the cell underwent, and was 21.9% and 12.8% for the cell cycled for 1000 times at 25°C and 50°C, respectively. ... It has been grown for decades as thin films from a wide variety of physical-chemical deposition ...

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  • Wetting behavior of textured silicon surfaces- an ...

    2020-5-4 · An investigation on the effect of texture geometry and its arrangement in an array was carried out using a droplet of DI water under static conditions. Circular and square were the geometries selected for fabricating patterns with both hollow and circular cross-sections. The patterns were arrangement in both chain type and zig-zag type.

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  • Highlights of 2014 - Journal of Physics D ... - IOPscience

    Welcome to the Journal of Physics D: Applied Physics highlights of 2014. Our annual selection represents the breadth and excellence of the work published in the journal. These articles include outstanding new research in a paper or a Letter (LET), well …

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  • (PDF) An apparatus for measuring the sub-nozzle

    An air-jet loom requires of the solenoid valve, body shape, sub-nozzle locations, 40-100m3/h of compressed air with about 0.6MPa of and control methods have been studied intensively to reduce air consumption in air-jet looms 1. Energy saving is the most important among the various technical aspects related to air-jet loom.

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  • Volume Table of Contents - SPIE Digital Library

    For the examined range of cutting speeds and sheet thicknesses width of kerf varies between 5 and 15%, surface roughness between 10 and 30%. Sheets in the range of 1 to 10 mm thickness are possible to be cut with an accuracy better than 50 micrometers , sheets thicker than 10 mm with an accuracy of 150 to 200 micrometers .

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  • Volume Table of Contents - SPIE Digital Library

    2011-1-27 · LiCoO 2 texturing by laser induced forward transfer for printed microbatteries Ashwin C. Atre , Craig B. Arnold Proc. SPIE 7921, Laser-based Micro- and Nanopackaging and Assembly V, 79210O (22 February 2011); doi: 10.1117/12.876467

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  • The challenges, achievements and applications of ...

    2021-4-23 · Hence, it can be concluded that large air volumes are generally of less importance for long-term air retention and that density is more impactful. 77 Typically, a feature density of 1–2 × 10 6 mm −2 with a mean distance below 1 μm is considered to be the minimum requirement for long-time air retention. 77 However, having features of dual ...

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  • Department of Textile Technology

    2020-6-10 · dry jet wet spinning of PAN copolymers. False twist and air jet texturing processes. Determination of structure of textured yam under microscope. TTL717: Advances in Manufactured Fibres: 3 credits (3-0-0) Profile fibres, hollow & porous fibres, spandex fibres. Biodegradable fibres, polyglycilic acid fibres, polylactic acid

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  • Laboratories - Mechanical

    Recent topics of interest include micro-texturing of surfaces with communicating and non-communicating air gaps, droplet impingement and evaporation dynamics on nonwetting surfaces, heat transfer studies in boiling, and scale formation during bubble evolution. Multidisciplinary and Multiscale Design and Device (M2D2) Laboratory. G. K. Ananthasuresh

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  • Someshwar S Bhattacharya

    Polyester yarn is chosen for this investigation as it has a wide range of applications. Fully drawn multifilament polyester yarns, with different linear densities, are textured on a single-head mechanical crimp texturing machine. The results are analysed with the help of …

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  • What is Abrasive Grit Blasting? (aka Sandblasting) - TWI

    There is a variety of blast equipment available that falls into one of three types: Portable or Mobile Blast Equipment. Portable blast equipment can either be designed for dry or wet blasting. Dry blasting systems typically use a diesel air compressor which provides high-pressure air to single or multiple blast pots.

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  • Frontiers

    2020-10-20 · 1) Forced fluid convection: Using air can cool up to 10 W/cm 2; this can be increased by using liquid such as water or glycol. Example: Aluminum heat sink and fan or pin finned heat exchanger with 50/50 water and glycol. 2) Jet-impingement cooling: A coolant fluid impinged perpendicular to the heat source at a high speed.

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  • Fabrication of Microlens Array and Its Application: A ...

    2018-2-27 · Microlens arrays are the key component in the next generation of 3D imaging system, for it exhibits some good optical properties such as extremely large field of view angles, low aberration and distortion, high temporal resolution and infinite depth of …

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  • Applications of Plasma Technology in Development of ...

    2012-10-4 · Superhydrophobic surfaces, originally inspired by nature, have gained a lot of interest in the past few decades. Superhydrophobicity is a term attributed to the low adhesion of water droplets on a surface, leading to water contact angles higher than 150°. Due to their vast variety of possible applications, ranging from biotechnology and textile industry to power network management and anti ...

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  • Department of Textile Technology

    2020-6-10 · dry jet wet spinning of PAN copolymers. False twist and air jet texturing processes. Determination of structure of textured yam under microscope. TTL717: Advances in Manufactured Fibres: 3 credits (3-0-0) Profile fibres, hollow & porous fibres, spandex fibres. Biodegradable fibres, polyglycilic acid fibres, polylactic acid

    Get Price
  • Short Communications - NISCAIR

    2010-12-22 · high pressure air-jet thrust force and skin friction force along the yarn. The air-jet loom is popular in weaving industries because of its high productivity, convenient controllability, and for wide variety of fabrics such as silk, cotton, wool, and spun textures. The air-jet loom is also capable of texturing …

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  • The art of laser ablation in aeroengine: The crown jewel ...

    2020-2-25 · K. Jones and S. R. Schmid, “ Experimental investigation of laser texturing and its effect on friction and lubrication,” in 44th North American Manufacturing Research Conference, Namrc 44, edited by A. Shih and L. Wang (Elsevier Science Bv, Amsterdam, 2016), pp. 568–577.

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  • Some Recent Advances in Drying Technologies to Produce ...

    Thermal drying is a highly energy-consuming process found in almost all industries accounting for between 10–20% of national industrial energy consumption in the developed economies of the world. It is arguably the oldest unit operation and yet R&D in this area is only a few decades old. Over 50% of products consumed by humans are in ...

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  • Laboratories - Mechanical

    Recent topics of interest include micro-texturing of surfaces with communicating and non-communicating air gaps, droplet impingement and evaporation dynamics on nonwetting surfaces, heat transfer studies in boiling, and scale formation during bubble evolution. Multidisciplinary and Multiscale Design and Device (M2D2) Laboratory. G. K. Ananthasuresh

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  • (PDF) [2000] Handbook of Weaving

    Academia.edu is a platform for academics to share research papers.

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  • Applications of Plasma Technology in Development of ...

    2012-10-4 · Superhydrophobic surfaces, originally inspired by nature, have gained a lot of interest in the past few decades. Superhydrophobicity is a term attributed to the low adhesion of water droplets on a surface, leading to water contact angles higher than 150°. Due to their vast variety of possible applications, ranging from biotechnology and textile industry to power network management and anti ...

    Get Price
  • Overview of Laser Applications in Manufacturing and ...

    The topics to be covered in this paper include more popularly used processes in industry such as laser additive manufacturing, laser-assisted machining, laser micromachining, laser forming, laser surface texturing, laser welding, and laser shock peening, although there are several additional areas of …

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  • Response of High-Pressure Micro Water Jets to Static and ...

    2018-3-20 · An air switch is included in the cutting assembly to switch on and off the high-pressure output by air pressure (operating air pressure threshold 0.41 MPa). The water jet that emanates from the diamond orifice is only 48 μm in diameter, which is smaller than the size of the orifice because of the vena contracta effect . A copper wire with a ...

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  • CPC - Compilation of Changes to the Scheme

    2020-5-15 · M F02M 2700/00 Supplying, feeding or preparing air, fuel, fuel air mixtures or auxiliary fluids for a combustion engine; Use of exhaust gas; Compressors for piston engines WARNING Groups F02M 2700/00 – F02M 2700/4397 are no longer used for the classification of documents as of January 1, 1975. Project: MP0248 (B32B)

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  • Newsmakers - ASME

    The University of Maryland has announced that Samuel Graham, Jr., Ph.D. will become dean of the A. James Clark School of Engineering, effective October 1, 2021. Dr. Graham will provide leadership and vision for the Clark School, while sharing the school’s …

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  • Principles of Short Staple Spinning PDF

    2021-1-29 · Module 4. Staple Spinning and Filament Texturing Overview Several staple spinning systems are being used in the textile industry. Table 1 indicates the major systems, the fibres used by each system, and the selected end-uses of these spinning systems.. Table 1: End-products of yarns produced by major spinning systems (Krause 1985) SPINNING OE OE SYSTEMS RING ROTOR FRICTION AIR JET

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  • Technology of Short Staple Spinning

    2017-3-23 · Air-jet spinning systems using one nozzle, like vortex-spun allow higher percentages of wrap fibers, resulting in better yarn properties and higher productivity. Yarn structure One aspect of structure is the visual appearance, created solely by the peripheral layer of the yarn, and a second aspect is the internal and external make-up.

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  • Read Handbook of Technical Textiles Online by Elsevier ...

    The first edition of Handbook of Technical Textiles has been an essential purchase for professionals and researchers in this area since its publication in 2000. With revised and updated coverage, including several new chapters, this revised two volume second edition reviews recent developments and new technologies across the field of technical textiles. Volume 2 – Technical Textile ...

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  • People @ EECS at UC Berkeley

    1996-6-28 · ï ÿÿÿÿîÉ'E …è‘ ‡2 Ô …ç‘ ‡2 G …ç‘ ‡2 a …ç‘ ‡2 © - …ö‘ ‡2 € ¨ ‚ … ‚ ÿ‚ …. ƒ1 ‚ ‡ À % †& ÿƒ ‰Àÿ ...

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