نتایج جستجو برای: climate chamber
تعداد نتایج: 211107 فیلتر نتایج به سال:
Introduction: Well type ionization chamber is a measuring device which is used to determine the activity of brachytherapy sources. The chamber has a cylindrical volume in which a cylindrical tube is mounted in the middle of the chamber. For the measurements, the brachytherapy sources are transferred to the middle of the tube. Materials and Methods: For designing the well type chamber, the measu...
Maps are a key way through which the science of climate change is communicated, but as partisan divides lead to new ideologically driven consumption patterns news sources, it important understand how media uses maps across political spectrum. In this study, we investigate have been incorporated into communication in conservative media. Our research has two major findings. First, compared mainst...
Effects of the large-scale circulation on temperature and water vapor distributions in the Π Chamber
Abstract. Microphysical processes are important for the development of clouds and thus Earth's climate. For example, turbulent fluctuations in water vapor mixing ratio, r, temperature, T, cause saturation S. Because S is driving factor condensational growth droplets, may broaden cloud droplet size distribution due to individual droplets experiencing different rates. The small-scale atmosphere t...
The energy conservation potential of the heat pipe based heat exchangers (HPHXs) was studied in this research. To this end, a typical climate chamber as the representative of an air conditioning system was established. The performance characteristic of a typical eight-row HPHX was obtained based on the one week operation (168 h) to determine the performance characteristic curves. The coil face ...
Experimental investigation of homogeneous freezing of sulphuric acid particles in the aerosol chamber AIDA O. Möhler, O. Stetzer, S. Schaefers, C. Linke, M. Schnaiter, R. Tiede, H. Saathoff, M. Krämer, A. Mangold, P. Budz, P. Zink, J. Schreiner, K. Mauersberger, W. Haag, B. Kärcher, and U. Schurath Forschungszentrum Karlsruhe, Institute of Meteorology and Climate Research, Karlsruhe, Germany Fo...
Abstract: The anonymous data from 1352 companies concerning the economic climate in Polish servicing sector from the European Economic Survey 2005 was obtained by courtesy of The Polish Chamber of Commerce. The Grade Correspondence Analysis (GCA) with posterior clustering (GCCA) is introduced and applied to this data. The main task of this analysis is to create the first view of data and to rev...
Long path length FTIR-smog chamber techniques were used to determine k(Cl + CF3CF@CH2) = (7.03 ± 0.59) · 10 , k(OH + CF3CF@CH2) = (1.05 ± 0.17) · 10 , and k(O3 + CF3CF@CH2) = (2.77 ± 0.21) · 10 21 cm molecule 1 s 1 in 700 Torr of N2, N2/O2, or air diluent at 296 K. CF3CF@CH2 has an atmospheric lifetime of approximately 11 days and a global warming potential (100 yr time horizon) of four. CF3CF@...
background : in recent years tissue engineering developed to replace or repair damaged tissues using cell and biomaterial. one of the most important fields of tissue engineering is simulation of in vivo micro environment of body tissues. this study aimed to develop culture chamber and cell biomaterial sheet engineering for the reconstruction of cartilage tissue. methods : stainless steel cultur...
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