نتایج جستجو برای: sea lines of communications
تعداد نتایج: 21200150 فیلتر نتایج به سال:
Surface-based radiometric measurements of tropospheric parameters have long provided useful measurements of temperature, water vapor, and cloud liquid. In this paper, a general overview of physical fundamentals, measurement techniques, and retrieval methodology is given. Then several contemporary instruments are discussed and representative results are presented. Recent and promising developmen...
In recent history there has been an enormous development in the subject area of Power Line Communications (PLC), since it has become possible due to advanced digital communications and digital signal processing techniques to use power lines for data transmission. PLC allows the use of the dynamic and far-reaching power cables to support high speed communication capabilities. Discrete Multi-tone...
In the center of the current digital revolution is the digital convergence phenomenon. The ability to convert various types of analog data to digital form has made it possible for such data as voice, music, photographic images and video to be stored in computers, processed using computers, transmitted via digital communications networks, and presented on both digital and analog devices. Digital...
In order to solve many tasks of biotechnology, constant lines of the cells of marine invertebrates with a high growth potential are required, which are absent at present. We used the universal activator of transcription gal4 to change the degree of expression of genes of growth factors in embryonic sea urchin cells and, thereby, increase their proliferative activity. The fertilized sea urchin e...
A 64-channel array coil for magnetic resonance imaging (MRI) has been designed and constructed. The coil was built to enable the testing of a new imaging method, single echo acquisition (SEA) MRI, in which an independent full image is acquired with every echo. This is accomplished by entirely eliminating phase encoding and instead using the spatial information obtained from an array of very nar...
AIM To construct the expression vector of B3 (scdsFv)-SEA (D227A) and to identify its binding and cytotoxic ability to B3 antigen positive carcinoma cell lines. METHODS This fusion protein was produced by a bacterial expression system in this study. It was expressed mainly in the inclusion body. The gene product was solubilized by guanidine hydrochloride, refolded by conventional dilution met...
The scientific objective of this research is to understand acoustic wave propagation in a dynamic environment in two frequency bands: Low (50 Hz to 500 Hz) and Mid-to-High (500 Hz to 25 kHz). The goal for the low frequency band is to assess the effects of internal waves on acoustic wave propagation, with an emphasis on the mechanisms that cause significant acoustic temporal and spatial intensit...
The Marmara Sea is situated between the world’s largest permanently anoxic basin, the Black Sea, and an enclosed marginal sea, the Aegean Sea, which experienced quasi-periodic sapropel deposition since Miocene time. It is connected to the Black Sea and the Aegean Sea through the Straits of Bosphorus and Dardanelles, respectively. Sapropel M1, which contains from 1 to 2% total organic carbon, wa...
TCK, the flagellar creatine kinase (ATP:creatine N-phosphotransferase) of sperm from the sea urchin Strongylocentrotus purpuratus is a membrane-associated lipophilic protein involved in energy transport. The cDNA derived protein sequence contains a consensus site sufficient for the covalent attachment of myristate. To examine whether TCK was myristoylated, mouse fibroblast Swiss 3T3 and baby ha...
in this research, the correlation between precipitation change in southern coasts of caspian sea and variability of sea level pressure have been analyzed by using environmental to circulation approach at time period 1339- 1383. in this respect, we make use of daily precipitation data of the 12 synoptic stations of studied area at surface data base section and prepare the time series matrix of p...
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