A General Measurement Set-up Approach to Evaluate Insulation System Quality by Exploring PWM and DC biased waveforms

Author(s):  
Thomas John Hammarstroem
Author(s):  
Chenghan Ming ◽  
Tao Chen ◽  
Qi Ai

This article describes how as part of the reform of the administrative system of China, most local governments have set up public service centers; meanwhile, ICT (Information and Communication Technology) has been commonly applied to make e-services more convenient, efficient and transparent. However, the existing studies in the Chinese context are mostly qualitative and the relationship between service quality and citizen satisfaction has not been tested. This article adopted the D&M model to develop an e-service quality model and tested the impact of service quality on citizen satisfaction. A survey was conducted and 364 valid questionnaires were analyzed. The results showed that the data fit the model well. Most of the hypotheses formulated in this article was proven. Additionally, an important finding was that the impact of service quality on specific satisfaction is stronger than that of information quality and system quality, which indicates that face-to-face services cannot simply be substituted by electronic systems. Both the theoretical and practical implications of the findings were discussed.


Author(s):  
Melissa Poerner ◽  
Jean-François Grignard ◽  
John Krahn ◽  
Lionel Duranty ◽  
Steven Galioto

In subsea applications, turbomachinery is subjected to severe gas and liquid mixtures. This is due to the fact that equipment installed on the ocean floor is severely limited. Typical gas/liquid separators and gas processing equipment are not used to clean the gas before it enters the turbomachinery. This means that the turbomachines can have multiphase mixtures and also corrosive gases such as hydrogen sulfide or carbonic acid (carbon dioxide and water) present in their flow streams among other contaminants. In many of these subsea applications, the electric motor driving the turbomachine is cooled using the process gas. Therefore the internals of the motor must withstand the attack of the corrosive mixtures and erosion with multiphase flow. A series of environmental static tests were conducted on a full scale subsea prototype motor to evaluate the performance of various materials when subjected to corrosive gas mixtures. These tests were conducted at various time intervals with different levels of pressure and temperature to simulate the conditions of a subsea environment gas flow. This paper reviews the test matrix and the test set-up used to conduct these tests. Also, it highlights the safety measures used to manage the inherent risks of testing with large quantities of corrosive and toxic gases mixtures and the different techniques that were implemented to follow the trends of the health of the insulation system.


2010 ◽  
Vol 6 (2) ◽  
Author(s):  
Mohamad Samsul

The purpose of this research is to optimize the function of futures market to achief the success the National Defence of Food System, The Indonesian government commits that Indonesia to be as an international foodstore. Indonesia has a potensial to be exporter of foods in a globalization era. The negative impact of international free trade can be managed by the futures market to protect the needs of foods of domestic people and industries. The function of National Logistic Body (BULOG) to control the national foodneeds has  not been success eventhough already 40 years operation. The Jakarta Futures Market (BBJ) operated since year of 2000 has many weak of functions. BBJ has not been designed in a comprehensive and a well-thought out plan. BBJ was set up careless and so uncapable to develop herself.The system of BBJ has to be totally reorganized.  BBJ must operate by national trading system. The Futures Market is obligated to trade all durable product of farm, plantation, forestry, fishery, breeding, mining &gas and financial instruments. In developing Futures Market is abligated too create storing system, transportation system, quality control body and arbitrage body. The development of Futures Market involved many departments such as: Trade, Transportation, farm & Plantation, Mining & Gas, Bulog, Indonesia Commercial Body, Sentral Bank, and regional government.The development of Futures Market is to be planned fairly by National Development Body, because many departments involved.The Futures Market is the latest market after money market and capital market. So, it is to be socialized to politicion, all departments involved, market practation and investors via seminar, short course and formal education. The suscces of  National Defence of Food System is very important for Indonesia to face globalization era which will be started at the latest of 2020. Indonesia still has10 years to regulate everything. In the globalization era, no more economic sovereignty of a country.  Each country must obey with the regulation of World Trade Organizatation. The Futures Market with unsuccessful operation now will impact to the failure of economic development in the futures.Keywords: Futures market, Natioanl Defence of Foods System, National Trading System.


2020 ◽  
pp. 139-143
Author(s):  
Orsolina I. Martino ◽  
Chris Fullwood ◽  
Sarah J. Davis ◽  
Nicola M. Derrer ◽  
Neil Morris

2004 ◽  
Vol 23 (1) ◽  
pp. 93-96 ◽  
Author(s):  
Aleksandra Postic-Grujin ◽  
Nada Majkic-Singh

Application of external quality control in clinical biochemical laboratories imposed the necessity of introduction of system quality management and accreditation in identical and different medical laboratories. ?Good laboratory practice? and the principals thereof were adopted by the appointed bodies, both international and national ones. In the beginning, ISO 9001 standard was applied to certification, and EN 45001 and ISO Guide 25 to accreditation; both were prepared for testing and calibration laboratories. ISO 17025 standard is the successor of the previous documents and presently used as reference by the listed laboratories. The Working Group of European Communities Confederation of Clinical Chemistry (EC4) set up out the additional requirements for the medical laboratories. The draft standard ISO 15189 was adopted in February of 2003 as the final version of the requirements set forth for all the medical laboratories.


Author(s):  
T. G. Naymik

Three techniques were incorporated for drying clay-rich specimens: air-drying, freeze-drying and critical point drying. In air-drying, the specimens were set out for several days to dry or were placed in an oven (80°F) for several hours. The freeze-dried specimens were frozen by immersion in liquid nitrogen or in isopentane at near liquid nitrogen temperature and then were immediately placed in the freeze-dry vacuum chamber. The critical point specimens were molded in agar immediately after sampling. When the agar had set up the dehydration series, water-alcohol-amyl acetate-CO2 was carried out. The objectives were to compare the fabric plasmas (clays and precipitates), fabricskeletons (quartz grains) and the relationship between them for each drying technique. The three drying methods are not only applicable to the study of treated soils, but can be incorporated into all SEM clay soil studies.


Author(s):  
T. Gulik-Krzywicki ◽  
M.J. Costello

Freeze-etching electron microscopy is currently one of the best methods for studying molecular organization of biological materials. Its application, however, is still limited by our imprecise knowledge about the perturbations of the original organization which may occur during quenching and fracturing of the samples and during the replication of fractured surfaces. Although it is well known that the preservation of the molecular organization of biological materials is critically dependent on the rate of freezing of the samples, little information is presently available concerning the nature and the extent of freezing-rate dependent perturbations of the original organizations. In order to obtain this information, we have developed a method based on the comparison of x-ray diffraction patterns of samples before and after freezing, prior to fracturing and replication.Our experimental set-up is shown in Fig. 1. The sample to be quenched is placed on its holder which is then mounted on a small metal holder (O) fixed on a glass capillary (p), whose position is controlled by a micromanipulator.


Author(s):  
O.L. Krivanek ◽  
J. TaftØ

It is well known that a standing electron wavefield can be set up in a crystal such that its intensity peaks at the atomic sites or between the sites or in the case of more complex crystal, at one or another type of a site. The effect is usually referred to as channelling but this term is not entirely appropriate; by analogy with the more established particle channelling, electrons would have to be described as channelling either through the channels or through the channel walls, depending on the diffraction conditions.


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