نتایج جستجو برای: 23o to 25oc
تعداد نتایج: 10613985 فیلتر نتایج به سال:
The problem of the need for energy continues to increase, so a solution is needed in form alternative that supply can be overcome. One solutions through utilization solar by using panels with their photovoltaic properties. must optimized work output power optimal. method this study concept cooling system overcome are above working temperature range where 1oC (starting from 25oC) will reduce gen...
In this paper, Fe 3 O 4 @SiO 2 core/shell magnetic nanostructure has been synthesized and modified by N-(2-aminoethyl)-3-aminopropyltrimethoxysilane (AEAPTMS). Fe 3 O 4 @SiO 2 was used as a novel adsorbent for separation of hexachloroplatinic acid.X-ray diffraction (XRD), scanning electron microscopy (SEM), and FT-IR technique were used to characterize morphologies and surface te...
many shrimp farmers were suffering from white spot disease (wsd) onset in last decades. oscillation of environmental factors could lead mortality in susceptible hosts. the results showed mortality started earliear (36h post inoculation) at 25oc in comparison to the temperature more than 29 oc as well as the salinity of 50 ppt in comparison to the lower degrees of salinities. it is concluded tha...
after the soviet union dissolution, a chaotic period was begun in the russia. russia lost its glory and felt disgrace. the first group of elites came to power under yeltsin; they tried to re-define russia’s identity as a european country and build a foreign policy on this baseline. therefore russia tried to become closer with the west especially with the u.s. according to their view the sovie...
AbstractIntroduction: The direct anterior approach (DAA) for total hip arthroplasty (THA) is a very sophisticated and complicated surgery typically performed using specialized operating room table instruments. In our clinic, this procedure was with modified incision to avoid dependence on special we could use ordinary THA There an obvious absence of literature regarding subject.Methods: A 31 pa...
the current study examined iranian undergraduate efl students’ willingness to communicate with regard to their vocabulary knowledge. in general, participants were somewhat willing to communicate in english. the total mean score of 730 university students’ perception of willing to communicate was 83.53 out of 135. results, regarding four parts of willingness to communicate, revealed that part...
The influence of nickel as minority alloying element on the corrosion behavior amorphous alloys (Al74Cu16Mg10)99Ni, (Al74Cu16Mg10)98Ni2 and (Al74Cu16Mg10)97Ni3 was investigated. were obtained ribbons by Chill Block Melt Spinning (CBMS). structure proven X-ray diffraction (XRD) transmission electron microscopy (TEM). rate calculated gravimetric using continuous immersion tests for 360 hours in 3...
Recent developments in PCR techniques provide the opportunity to quantify low copy numbers of specific nucleic acid sequences by quantitative, real-time PCR (1). The use of quantitative, real-time PCR is spreading due to its accuracy and relative simplicity. As a consequence, the number of laboratories equipped with an optical thermal cycler is increasing. The use of an apparatus for more than ...
abstract: the present study is an attempt to find out cultural exophoric references in iranian high-school elt textbooks and touch stone series to compare the frequency of occurrence of such references in these books. the purpose is to find out which of the series of the books under investigation impose a greater referential burden on efl learners as far as their reading comprehension of the ...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید