History of Technologies, Development for Solar Silicon Cost Reduction

2013 ◽  
pp. 278-295
Keyword(s):  
Cost Reduction ◽  
History Of ◽  
Solar Silicon

Centrifugal Separation of Primary Silicon during Solidification in Al-Si Alloy for Solar Silicon Feedstock

2012 ◽  
Vol 706-709 ◽  
pp. 819-822 ◽  
Author(s):  
Ju Young Cho ◽  
Bok Hyun Kang ◽  
Ki Young Kim
Keyword(s):  
Cost Reduction ◽  
Eutectic Temperature ◽  
Silicon Crystal ◽  
Acid Leaching ◽  
Primary Silicon ◽  
Segregation Coefficient ◽  
High Purity Silicon ◽  
Solar Silicon ◽  
Removal Of Impurities ◽  
Impurity Elements

Various metallurgical refining processes of SOG (Solar Grade)-Si are being developed aiming its cost reduction for the PV (Photovoltaic) market. High purity silicon can also be obtained from Al-Si alloys using solidification theory. Since the solubility of impurity elements in silicon decreases rapidly with temperature decrease much above the Al-Si eutectic temperature, the removal of impurities from silicon at low temperature is expected to be effective. Most of impurity elements with small segregation coefficient can be removed during solidification. Key technology in this process is to separate the primary solid silicon from the liquid eutectic matrix during solidification. Some methods by an electromagnetic force or by combining flocculation and filtration techniques have been proposed to separate the solid silicon. The present study describes a new way to extract the primary silicon crystal from Al-Si alloys using centrifugal force during solidification for a silicon solar feedstock. Primary silicon was separated in the shape of foam during solidification, and pure Si flakes after acid leaching could be obtained.

scholarly journals Development of a Novel Launch System Microwave Rocket Powered by Millimeter-Wave Discharge

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Kimiya Komurasaki ◽  
Kuniyoshi Tabata
Keyword(s):  
Millimeter Wave ◽  
Cost Reduction ◽  
Wave Beam ◽  
Design History ◽  
Filamentary Structure ◽  
History Of Development ◽  
Quarter Wavelength ◽  
Atmospheric Discharge ◽  
History Of ◽  
Wave Discharge

This paper presents the state of art of Microwave Rocket development and related researches on atmospheric discharge in a high-power millimeter-wave beam. Its operational mechanisms, thruster design, history of development, and flight path and cost analyses are introduced along with millimeter-wave discharge observations and numerical simulations. A thruster model of 126 g weight with no on-board propellant was launched to 1.2 m altitude using a 1 MW class gyrotron. A flight analysis that shows 77% cost reduction is possible using Microwave Rocket as the first stage of H-IIB heavy. A millimeter-wave discharge with unique plasma structure such as a quarter-wavelength microstructure and a comb-shaped filamentary structure was observed and reproduced by a two-dimensional numerical model.

Experience With Advanced Monitoring Tools

2005 ◽  
Author(s):  
Brad McNamara ◽  
Carl-Ernst Stephan ◽  
Max Hobelsberger
Keyword(s):  
Cost Reduction ◽  
Energy Market ◽  
Diagnostic Systems ◽  
Reliable Operation ◽  
Monitoring Tools ◽  
Current Economic Situation ◽  
History Of ◽  
On Line ◽  
Available Information ◽  
Monitoring Information

The current economic situation in the global energy market demands a cost reduction in maintenance concurrently with high availability and reliability of critical plant components. A combination of state-of-the-art on-line monitoring and diagnostic systems with the necessary off-line inspections allows more reliable operation with extended durations between maintenance intervals by applying modern data mining and expert systems. Prerequisites for such a condition based maintenance strategy are the incorporation of all available information of the generator (i.e., design knowledge, fleet experience, history of the machine) and all diagnosis and monitoring information. The experience with a modular monitoring system covering the main elements of a generator will be demonstrated.

Case History of Intensive Well and Reservoir Management and Cost Reduction Optimisation Efforts in a Mature Feild

2005 ◽  
Author(s):  
Stan Van Gisbergen ◽  
Edwin Kokoh Himawan ◽  
P. Santhana Kumar ◽  
Jeremy Harris ◽  
Buthaina Al-Barwani
Keyword(s):  
Case History ◽  
Cost Reduction ◽  
Reservoir Management ◽  
History Of

scholarly journals Regulatory Technologies in the AML/CFT

2018 ◽  
Vol 3 (2) ◽  
pp. 394
Author(s):  
Zabelina O. A. ◽  
Vasiliev A. A. ◽  
Galushkin S. V.
Keyword(s):  
Money Laundering ◽  
Financial Services ◽  
Cost Reduction ◽  
Information Technologies ◽  
Financial System ◽  
World Market ◽  
Terrorist Financing ◽  
The World ◽  
History Of

Currently, the AML / CFT sphere is actively developing and many highly skilled specialists are involved in it. However, there are many crimes in this area: criminals use more and more complicated ways of legalizing criminal proceeds, which are almost impossible for anticipation and prevention at the exact period. In the fight against ML/FT regulatory technologies come to the rescue.Regulatory technologies are a necessary part of effective AML / CFT systems. The article includes a brief overview and history of the emergence of "regulating technologies", reflects the main directions of development of the regtech on the world market of information technologies at present and possible prospects for development in the nearest future. In addition, the article reveals the benefits of applying regulatory technologies in order to improve control, security, cost reduction and time to eliminate vulnerabilities in existing AML / CFT systems.The article describes how the development of regtech innovations can improve the accessibility and quality of financial services for individuals, companies and communities and achieve the FATF goals of combating money laundering, terrorist financing and other threats to the integrity of the international financial system. Keywords: AML / CFT, FATF, AML / CFT systems, legalization, RegTech technologies.

scholarly journals Enhancing maintenance with a data-driven approach

2019 ◽  
Vol 10 (2) ◽  
pp. 135-140
Author(s):  
João Ostrowski ◽  
József Menyhárt
Keyword(s):  
Cost Reduction ◽  
Industry 4.0 ◽  
Industrial Revolution ◽  
Predictive Analytics ◽  
Point Of View ◽  
Data Driven ◽  
Fourth Industrial Revolution ◽  
Data Driven Approach ◽  
History Of ◽  
Cloud Technologies

Constant stream of data has been generated and stored as more devices are being connected to the internet and supported with cloud technologies. The price drop of such applications along with industry 4.0 trending, triggered an explosive growth and demand for many IT modern solutions. From an industrial point of view, sensorization practices are spreading through factories and warehouses where software is constantly adapting to provide actionable insights in a data-driven configuration. The fourth industrial revolution is empowering the manufacturers with solutions for cost reduction, which translates in competitive advantage. The sector of maintenance operations is leading in engineering innovation, from reactive to planned preventive techniques the next step in history of proactive approaches is Predictive Analytics Maintenance.

Foley Catheter and Esophageal Foreign Bodies

PEDIATRICS ◽  
1995 ◽  
Vol 96 (4) ◽  
pp. 791-791
Author(s):  
James E. Arnold ◽  
Diana Radkowski
Keyword(s):  
Success Rate ◽  
Cost Reduction ◽  
Foreign Bodies ◽  
Foley Catheter ◽  
Esophageal Disease ◽  
Fluoroscopic Guidance ◽  
Relative Safety ◽  
History Of ◽  
Esophageal Foreign Bodies ◽  
Clear Presentation

Dr Schunk and colleagues1 have provided a very clear presentation of their use of the Foley catheter with fluoroscopic guidance for removal of esophageal foreign bodies in children. They cite their high success rate and relative safety and infer that this is the procedure of choice based primarily on cost reduction. They properly point out that fluoroscopic-guided catheter extraction should be applied only to blunt foreign bodies that have been lodged for 3 days or less, and there should be no history of esophageal disease.

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