نتایج جستجو برای: insulation properties

تعداد نتایج: 876888  

1999
Kalev Kuklane Ingvar Holmér Gordon Giesbrecht

Moisture inside the footwear can considerably affect the thermal insulation. In this study with a thermal foot model there was simulated three sweat rates (3, 5 and 10 g/h). Five types of footwear with various insulation levels (dry insulation from 0.19 to 0.50 m2 · K/W) were tested. The footwear insulation reduction was calculated for 1.5 hour period. The reduction in insulation was related to...

Journal: :Materials 2023

The research and application progress of resin-based composite materials in the field electrical insulation has attracted considerable attention emerged as a current hotspot. This review comprehensively summarized insulation, providing detailed insights into their concept, properties, preparation methods. In addition, comprehensive evaluation performance, mechanical thermal properties was prese...

ژورنال: انرژی ایران 2017

One of the most important energy-saving of building is suitable choice of insulation with regard to the climatic conditions of each region. In this study, the effects of building insulations approved by the Research Center of Way, Housing and Urban Development with regard to the cost of insulation on energy consumption in the region of Yazd, Tehran and Tabriz was evaluated by software Energy Pl...

Journal: :international journal of environmental research 2014
v. de giuli c.m. pontarollo m. de carli a. di bella

current standards for indoor comfort are based on studies of adults, but they also apply tochildren, even though children differ in terms of metabolic rates, clothing types, activity levels, and preferences in space arrangement. children are also more sensitive to a range of environmental factors, they are usually unable to interact with their environment, and they accept indoor conditions pass...

2012
N. A. M. Jamail M. A. M. Piah

Polarization and Depolarization Current (PDC) testing is a non-destructive dielectric testing method to determine the conductivity of insulations. It is one of the dielectric d iagnostic techniques based on time domain measurement. PDC measurement technique has gained immense popularity due to its ability to assess the condition of HV insulation. PDC measurement can provide information about th...

2012
Subhash Mishra J A Usmani Sanjeev Varshney

In this study, we discuss about the energy saving in different type of building walls by using optimum insulation thickness with suitable insulation material. The energy saving is maintained by reducing the energy consumption in buildings. Heat losses from building envelope have a major share in waste of energy. So it is essential to save the energy by using optimum insulation thickness. The in...

Journal: :Contact dermatitis 2014
Wietske Andrea Christoffers Pieter-Jan Coenraads Marie-Louise Schuttelaar

Colophonium (rosin, CAS no. 8050-09-7) is a complex mixture of >100 different compounds derived from pine trees. It is a good tackifier, can be used as an emulsifier, and has acid properties without causing corrosion. Because of these properties, colophonium is used in various products, such as soldering fluxes, paper, cosmetics (depilatory waxes, soaps, hair gel, and nail polish), cutting flui...

2018
Song Xiao Xiaoxing Zhang Ju Tang Fuping Zeng Cheng Pan Yingang Gui

In order to judge the inside insulation fault of SF6 insulated equipment, the gas-sensing properties to a series of characteristic SF6 decomposition components, SOF2, SO2F2, SO2, H2S, CF4, HF, and SF6, have been studied. In this study, a comparative study of these gassensing materials has been made in theoretical and experimental fields to find the optimal gas-sensing material, and put forward ...

Journal: :Animal reproduction science 2003
Leonardo F C Brito Antonio E D F Silva Rogerio T Barbosa Maria M Unanian John P Kastelic

The objectives of the present study were to evaluate the effects of scrotal insulation on sperm production, semen quality, and testicular echotexture in Bos indicus and Bos indicus x Bos taurus crossbred bulls. In one experiment, B. indicus bulls (n=12) were allocated to control and whole-scrotum insulation groups, while in a second experiment, crossbred bulls (n=21) were allocated into control...

2010

Epoxy resins are used widely in industry because of their strong adhesive properties, chemical resistance, mechanical toughness and high electrical insulation. Consequently they are often found in adhesives, stabilizers, sealants, varnishes and paints. Epoxy resins consist of bridged diepoxide oligomers of increasing molecular weight and there are various types corresponding to different molecu...

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