نتایج جستجو برای: k and spatial autocorrelation spac the spac method
تعداد نتایج: 21322057 فیلتر نتایج به سال:
in this work, a novel and fast method for direct analysis of volatile compounds (davc) of medicinal plants has been developed by holding a filament from different parts of a plant in the gc injection port. the extraction and analysis of volatile components of a small amount of plant were carried out in one-step without any sample preparation. after optimization of temperature, extraction time a...
today, scouring is one of the important topics in the river and coastal engineering so that the most destruction in the bridges is occurred due to this phenomenon. whereas the bridges are assumed as the most important connecting structures in the communications roads in the country and their importance is doubled while floodwater, thus exact design and maintenance thereof is very crucial. f...
abstract this study is an attempt to determine the effect of nano- technology education on science lesson for fifth grade in primary school in the city of kermanshah. this research is experimental and is conducted in the from of pre-test and post- test for the control group. an achievement test was administered to determine the rate of learning in the students. the research is an applied one. ...
One of the ground motion prediction equations (GMPEs), which have recently been developed in the Next Generation Attenuation (NGA) project, is employed in this article to estimate site response in terms of amplification factor of the seismic waves in soft superficial sedimentary layer. This study also presents briefly the existing information dealing with the methods for estimating subsurface s...
Single-station microtremor measurements were conducted to investigate earthquake and soil behaviour for the first time in Nicosia, Cyprus. Cyprus is located a tectonically complex area Eastern Mediterranean where three plates meet. The study was chosen cover areas be opened new development. capital of Cyprus, also island's most important cultural, industrial, commercial, transportation centre. ...
This paper aims to present the current problems, solutions, and prospects of SPACs in United States. First, report introduces how function merge with private companies. Then, it examines advantages disadvantages SPAC process, especially when contrasted traditional IPOs. Finally, moving more events, establishes decline past year before concluding new rules proposed by SEC. We will also predict f...
abstract: proverbs are of the language materials which of the food of any language depends on the quality and quantity of these same materials. in the present research, the researcher tried to present the ramsarian proverbs according to four variables of color, fruit, plantsand animals that selected from the book of the members of each of these four variables, put them into the spss system fo...
a significant problem in multicarrier communication systems is the necessity to reduce the value of papr (peak-to-average power ratio) of transmitting signal. in this thesis we study the effect of the system parameters such as coding and modulation types on papr and ultimate ber in a mc-cdma system. in this study we consider fading channel as well as the nonlinearity of transmitter’s amplifier ...
the methods which are used to analyze microstrip antennas, are divited into three categories: empirical methods, semi-empirical methods and full-wave analysis. empirical and semi-empirical methods are generally based on some fundamental simplifying assumptions about quality of surface current distribution and substrate thickness. thses simplificatioms cause low accuracy in field evaluation. ful...
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