18‐1: Invited Paper: Evaluating In‐Process Test Compatibility of Proposed Mass‐Transfer Technologies to Achieve Efficient, High‐Yield MicroLED Mass‐Production

2019 ◽  
Vol 50 (1) ◽  
pp. 232-235
Author(s):  
Francois J. Henley
Keyword(s):  
Mass Transfer ◽  
Mass Production ◽  
High Yield

Mass production of multi-wall carbon nanotubes by metal dusting process with high yield

2011 ◽  
Vol 46 (5) ◽  
pp. 716-721 ◽  
Author(s):  
H. Ghorbani ◽  
A.M. Rashidi ◽  
S. Rastegari ◽  
S. Mirdamadi ◽  
M. Alaei
Keyword(s):  
Carbon Nanotubes ◽  
Mass Production ◽  
High Yield ◽  
Metal Dusting ◽  
Multi Wall Carbon Nanotubes

Synthesis of Carbon Nanotubes with Typical Structure from the Pyrolysis Flame

2011 ◽  
Vol 221 ◽  
pp. 99-103 ◽  
Author(s):  
Yuan Chao Liu ◽  
Na Na Zheng ◽  
Jing Dong Huang ◽  
Bao Min Sun
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Monoxide ◽  
Mass Production ◽  
Sampling Time ◽  
High Yield ◽  
Typical Structure ◽  
Catalyst Nanoparticles ◽  
Transmission Electron ◽  
Synthesis Of Carbon Nanotubes ◽  
Key Parameter

Synthesis of carbon nanotubes from V-type pyrolysis flame is a kind of new method. It has potential for carbon nanotubes preparation in mass production. Carbon monoxide was as carbon source and the acetylene/air premixed gas provides heat by combustion. Hydrogen/helium premixed gas acted as diluted and protection gas. Pentacarbonyl iron was served as catalyst. Carbon nanotubes with less impurity and high yield were captured successfully in the V-type pyrolysis flame. The diameter of carbon nanotubes was approximate between 10nm and 20nm, and its length was dozens of microns. The size of catalyst nanoparticles approximately was from 5 nm to 8nm in diameter. This study aims to examine the formation process of typical carbon nanotubes from pyrolysis flame and to characterize their morphology and structure. The morphology and structural of carbon nanotubes were characterized by scanning electron microscope and transmission electron microscopy respectively. Temperature was the key parameter in the process of synthesis carbon nanotubes. The concentration of catalyst had important influence on the synthesis of carbon nanotubes. Sampling time directly determined whether carbon nanotubes formation was completely. The carbon “dissolved-proliferation-separate out” theory can be used to explain that pentacarbonyl iron catalyses carbon monoxide in the process of carbon nanotube formation.

scholarly journals Improved methods for mass production of magnetosomes and applications: a review

2020 ◽  
Vol 19 (1) ◽  
Author(s):  
Abdul Basit ◽  
Jiaojiao Wang ◽  
Fangfang Guo ◽  
Wei Niu ◽  
Wei Jiang
Keyword(s):  
Cell Growth ◽  
Mass Production ◽  
Bacterial Cell ◽  
Magnetotactic Bacteria ◽  
High Yield ◽  
Successful Development ◽  
Geomagnetic Fields ◽  
Increasing Demand ◽  
Improved Methods ◽  
Unique Ability

Abstract Magnetotactic bacteria have the unique ability to synthesize magnetosomes (nano-sized magnetite or greigite crystals arranged in chain-like structures) in a variety of shapes and sizes. The chain alignment of magnetosomes enables magnetotactic bacteria to sense and orient themselves along geomagnetic fields. There is steadily increasing demand for magnetosomes in the areas of biotechnology, biomedicine, and environmental protection. Practical difficulties in cultivating magnetotactic bacteria and achieving consistent, high-yield magnetosome production under artificial environmental conditions have presented an obstacle to successful development of magnetosome applications in commercial areas. Here, we review information on magnetosome biosynthesis and strategies for enhancement of bacterial cell growth and magnetosome formation, and implications for improvement of magnetosome yield on a laboratory scale and mass-production (commercial or industrial) scale.

Comparative Study on Manufacturability of Selective Emitter and Double Printing on Mono-Si PV Cells

2011 ◽  
Vol 1323 ◽  
Author(s):  
Y. Liu ◽  
F.D. Jiang ◽  
S. Wang ◽  
Y. Zeng ◽  
W. Shan
Keyword(s):  
Conversion Efficiency ◽  
Mass Production ◽  
Large Scale ◽  
Cost Effective ◽  
Energy Conversion Efficiency ◽  
High Yield ◽  
Efficiency Gain ◽  
Device Structure ◽  
Selective Emitter ◽  
Production Platform

ABSTRACTSelective emitter structure has long been regarded as a good and relatively simple approach to improve the energy conversion efficiency of Si wafer-based single-junction photovoltaic (PV) cells. Recently emerged double printing method, on the other hand, potentially has the capability of improving the efficiency with no requirement for device structure modification. The manufacturability of these two approaches has been studied on a mass-production platform at JA Solar recently with large scale sampling. The experimental results collected from over two hundred thousand cells demonstrated that both approaches are capable of achieving significant conversion-efficiency gain in a cost-effective way with high yield rate on the PV industry commonly used mass production platform currently adopted by the vast majority of cell manufacturers

scholarly journals Experimental design for ultrasound-assisted extraction of Schinus terebinthifolius

2021 ◽  
Vol 10 (3) ◽  
pp. e26210312872
Author(s):  
Raphael A. G. Amaral ◽  
Marquele Amorim Tonhela ◽  
Raissa Antonelli ◽  
Mônica Hitomi Okura ◽  
Geoffroy Roger Pointer Malpass ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Mass Transfer Rate ◽  
Pressure Fluctuations ◽  
High Yield ◽  
Ultrasound Assisted Extraction ◽  
Schinus Terebinthifolius ◽  
Ultrasound Waves ◽  
Plant Constituents ◽  
Extraction Processes ◽  
Solid Liquid

The need for efficient extraction of plant constituents with a high yield and purity and limitations to conventional extraction techniques that are limited by mass transfer, has resulted in the development of new extraction processes. Sonochemistry involves cavitation induced by pressure fluctuations generated by ultrasound waves in a liquid medium. Ultrasound can be effectively used to increase the yield and the mass transfer rate in solid-liquid extraction processes. The present work employed a factorial design 33 and a central composite design (PCC) for the extraction of Schinus Terebinthifolius. It is possible to verify an optimum point for the extraction (35.24%) for a mass of 13.49 g and an extraction time of 2 h, at 60 ºC.

9‐2: Manufacturing Process for Mass Production of Micro‐LED Displays and High‐Speed and High‐Yield Laser Lift‐Off Systems

2020 ◽  
Vol 51 (1) ◽  
pp. 100-103
Author(s):  
Koichi Kajiyama ◽  
Yoshikazu Suzuki ◽  
Takafumi Hirano ◽  
Yoshikatu Yanagawa ◽  
Koichiro Fukaya ◽  
...  
Keyword(s):  
Mass Production ◽  
Manufacturing Process ◽  
High Speed ◽  
High Yield ◽  
Lift Off

scholarly journals Mass-Production and Characterizations of Polyvinyl Alcohol/Sodium Alginate/Graphene Porous Nanofiber Membranes Using Needleless Dynamic Linear Electrospinning

Polymers ◽  
2018 ◽  
Vol 10 (10) ◽  
pp. 1167 ◽  
Author(s):  
Ting-Ting Li ◽  
Mengxue Yan ◽  
Wenting Xu ◽  
Bing-Chiuan Shiu ◽  
Ching-Wen Lou ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Polyvinyl Alcohol ◽  
Sodium Alginate ◽  
Mass Production ◽  
Large Scale ◽  
Copper Wire ◽  
High Yield ◽  
Scale Preparation ◽  
Nanofiber Membranes ◽  
Porous Nanofiber

The aim of this study was to investigate the feasibility of large-scale preparation of porous polyvinyl alcohol/sodium alginate/graphene (Gr) (Gr-AP) nanofiber membranes using a copper wire needleless dynamic linear electrode electrospinning machine. Furthermore, the effects of Gr concentrations (0, 0.0375, 0.075, 0.25, 0.5, and 0.75 wt.%) on the morphology, electrical, hydrophilicity and thermal properties were evaluated. Results indicate that the dynamic linear electrospun Gr-AP membranes have a high yield of 1.25 g/h and are composed of porous finer nanofibers with a diameter of 141 ± 31 nm. Gr improved the morphology, homogeneity, hydrophobicity and thermal stability of Gr-AP nanofiber membranes. The critical conductive threshold is 0.075 wt.% for Gr, which provides the nanofiber membranes with an even distribution of diameter, an optimal conductivity, good hydrophilicity, appropriate specific surface area and optimal thermal stability. Therefore, needleless dynamic linear electrospinning is beneficial to produce high quality Gr-AP porous nanofiber membranes, and the optimal parameters can be used in artificial nerve conduits and serve as a valuable reference for mass production of nanofiber membranes.

Effect on Variation of KMnO4 Amount for Production of Graphene Oxide (GO)

2016 ◽  
Vol 1133 ◽  
pp. 476-480 ◽  
Author(s):  
Nur Md Said Hidayah ◽  
Wei Wen Liu ◽  
Wei Lai Chin ◽  
N.Z. Noriman ◽  
Uda Hashim
Keyword(s):  
Hydrogen Peroxide ◽  
Graphene Oxide ◽  
Electron Microscope ◽  
Mass Production ◽  
Colour Change ◽  
High Yield ◽  
X Ray Diffraction ◽  
X Ray ◽  
Colour Changes ◽  
Scanning Electron

Mass production of GO has always been an issue. Generally, there are 3 general methods available, namely Brodie’s, Staudenmaier’s and Hummer’s Method. These three methods differ in the type of oxidation agents used. There are plenty of developed methods to produce GO were reported in the literature including the improved Hummer’s method. This method is associated with the use of mixture of sulphuric acid/phosphoric acid (H2SO4/H3PO4) in 9:1 ratio without the presence of sodium nitrate (NaNO3).The amount of potassium permanganate (KMnO4) was set at 9.0g. This method allows high yield and ease of control. In this reaction, one of the important indicators was the colour changes during the addition of hydrogen peroxide (H2O2) into the mixture. However, with the large amount of KMnO4 added, the colour change was hardly observed. Therefore, one possible way to cope with that was to vary the amount of added KMnO4. Subsequently, the produced GO were characterized by X-Ray diffraction (XRD) and scanning electron microscope (SEM).

Mass-Production of High-Yield and High-Strength Thermomechanical Pulp Fibers from Plant Residues Enabled by Ozone Pretreatment

2021 ◽  
pp. 126575
Author(s):  
Jianming Liao ◽  
Shuaiming He ◽  
Lihuan Mo ◽  
Shasha Guo ◽  
Pengcheng Luan ◽  
...  
Keyword(s):  
Mass Production ◽  
High Strength ◽  
High Yield ◽  
Plant Residues ◽  
Thermomechanical Pulp ◽  
Pulp Fibers ◽  
Ozone Pretreatment
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