IEC 62676:2013-Video surveillance systems for use in security applications – Part 2-2: Video transmission protocols – IP intero

اختصاصی از فی دوو IEC 62676:2013-Video surveillance systems for use in security applications – Part 2-2: Video transmission protocols – IP interoperability implementation based on HTTP and REST services دانلود با لینک مستقیم و پر سرعت .

252 صفحه

IEC 62676:2013-Video surveillance systems for use in security applications – Part 2-2: Video transmission protocols – IP interoperability implementation based on HTTP and REST services

IEC 61730:2013-Photovoltaic (PV) module safety qualification – Part 1: Requirements for construction

اختصاصی از فی دوو IEC 61730:2013-Photovoltaic (PV) module safety qualification – Part 1: Requirements for construction دانلود با لینک مستقیم و پر سرعت .

44 صفحه فایل pdf

IEC 61730:2013-Photovoltaic (PV) module safety qualification – Part 1: Requirements for construction

Usage of Combined Solar - Chlorine disinfection process in treating un-potable water for small rural communities in arid or sem

اختصاصی از فی دوو Usage of Combined Solar - Chlorine disinfection process in treating un-potable water for small rural communities in arid or semi arid area of Iran دانلود با لینک مستقیم و پر سرعت .

نویسنده: Mojtaba Kharazmi
خلاصه مقاله:
A lack of resources and distribution of infrastructure makes the application of the common disinfection procedure extremely limited in small villages, especially those situated in hot weathers where waterborne diseases are prevalent. Solar radiation removes a wide range of organic chemicals and pathogenic organisms by direct exposure, is relatively inexpensive, and avoids generation of harmful by-products of chemically driven technologies. This could be an appropriate method for solving the problem of purification of water or even wastewater in rural communities. The average solar radiation for the Iran as a whole is about 19.23 Mega joules per square meter, and it is even higher in the central part of Iran, so use of solar energy for disinfection is highly suggested for some specific areas. The solar chamber unit, in a pilot plant scale, made up of PLEXY plates or PET plates should be built in order to investigate the effect of solar energy and heat adsorbed by water through UV-A radiation. Further research just focused on the use of solar energy in disinfection by means of batch reactor. It was reported total removal of three orders of magnitude [3log10] for pathogenic organism. The heat increasing due to UV-A radiation helped the removal efficiency greatly. The differences between the previouse researchs and the recent proposal are about the continuity of water flow and the additional chlorine unit following the solar disinfection chamber. The results that is gained from these researchs may guide us to the efficiency of the combined solar-chlorine disinfection process.
کلمات کلیدی: Disinfection, un-potable waters, solar – chlorine unit, rural communities

API 582:2016-Welding Guidelines for the Chemical, Oil, and Gas Industries

اختصاصی از فی دوو API 582:2016-Welding Guidelines for the Chemical, Oil, and Gas Industries دانلود با لینک مستقیم و پر سرعت .

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ویرایش سوم استاندارد جوشکاری در صنایع نفت و گاز

API 582:2016-Welding Guidelines for the Chemical, Oil, and Gas Industries

استاندارد ASTM D5966 در خصوص Evaluation of Engine Oils for Roller Follower Wear in Light-Duty Diesel Engine

اختصاصی از فی دوو استاندارد ASTM D5966 در خصوص Evaluation of Engine Oils for Roller Follower Wear in Light-Duty Diesel Engine دانلود با لینک مستقیم و پر سرعت .

استاندارد ASTM D5966

در خصوص

Evaluation of Engine Oils for Roller Follower Wear

in Light-Duty Diesel Engine

نسخه 2013

19 صفحه

Scope
1.1 This engine lubricant test method is commonly referred
to as the Roller Follower Wear Test. Its primary result, roller
follower shaft wear in the hydraulic valve lifter assembly, has
been correlated with vehicles used in stop-and-go delivery
service prior to 1993. It is one of the test methods required to
evaluate lubricants intended to satisfy the API CG-4 performance category. This test has also been referred to as the 6.2 L
Test.
1.2 The values stated in SI units are to be regarded as
standard. No other units of measurement are included in this
standard.
1.2.1 Exceptions—Where there is no direct SI equivalent,
such as pipe fittings, thermocouple diameters, and NPT screw
threads. Also, roller follower wear is measured in mils.

1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.