نتایج جستجو برای: experimental transmission
تعداد نتایج: 943098 فیلتر نتایج به سال:
Mesenchymal stem cell (MSC) homing and integration into tumors are under evaluation for clinical application. This approach requires the identification of conditions for optimal tumor invasion. We describe a tool for the in vitro comparison of parameters influencing invasion. Human MSC added to experimental tumor spheroids variably migrates toward the center of the structure. To determine MSC d...
technology transmission has engaged not only developing countries but also many western research communities. foreign direct investment is a commonly used method to transfer the technology. since specific studies on factors affecting the transmission of technology through foreign direct investment has not been made in nanotechnology, the purpose of this study is to identify the issues affecting...
(I.QM) system, ushich has been in regular operation in several IRM locutions. The L Q M system uses a System/7 to gather information about the analog phenomena that occur on telephone data transmission lines. It gathers the information without taking the lines out of service. Described are the ways in which the information fiom the 12QM system is used in daily 0perations;~for example, in one ca...
Introduction: Nowadays multiple techniques have been developed to noise control. One the most important way is the control based on sound absorption and insulation. The purpose of current study was to improve the acoustic properties of soft polyurethane foam regarding combined sound absorption and insulation characteristics. Materials and Methods: Polyacrylonitrile and polyvinylidine fluoride ...
Introduction: The aim of the present study was preparing polymeric materials and nanocomposites based on nanoparticles of zinc oxide in normal cases the coated with gelatin and comparing them in terms of sound transmission loss in different frequencies. Method: This study was an experimental one. The materials used in the current study were included zinc oxide nanoparticles, polymer po...
two groups of students were assigned as experimental and control ones, and were given instruction on directed reading-thinking activities and after some treatment, they were post-tested. although the initial pre-test did not show any significant differences, the final post-test result revealed that the cooperative reading comprehension helped the experimental group. the cooperative students’...
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