نتایج جستجو برای: 635 and 363 mm
تعداد نتایج: 16835355 فیلتر نتایج به سال:
BACKGROUND The purpose of the study is to determine the optical properties and their differences for normal human stomach mucosa/submucosa tissue in the cardiac orifice in vitro at 635, 730, 808, 890 and 980 nm wavelengths of laser. METHODS The measurements were performed using a CCD detector, and the optical properties were assessed from the measurements using the spatially resolved reflecta...
flow in natural river bends is a complex and turbulent phenomenon which affects the scour and sedimentations and causes an irregular bed topography on the bed. for the reason, the flow hydralics and the parameters which affect the flow to be studied and understand. in this study the effect of bed and wall roughness using the software fluent discussed in a sharp 90-degree flume bend with 40.3cm ...
a novel silver (ag) nanocomposite electrode was proposed that fabricated from metal nanostructures and ionic liquids. the combined application of unique properties of nanomaterials and ionic liquids in the design of this ag nanocomposite results in electrodes with interesting advantages compared to the conventional metal disk electrode. in the first part of this thesis, the elecrocatalytic eff...
applications such as high definition viedeo reproduction, portable computers, wireless, and multimedia demand, and ever-increasing need for ligh-frequency high-resolution and low-power analog-to-digital converters. flash, two-step flash, and pipeline convertors are fast but consume large amount of power and require large area. to overcome these problems, successive approximation converter blo...
We present the results of new rest-frame far-IR observations of the z = 4.25 radio galaxy, 8C1435+635, which not only confirm that it contains an enormous quantity of dust (as first inferred from its mm-wave detection by Ivison 1995) but also allow the first meaningful constraints to be placed on the mass of this dust and associated gas. The new measurements consist of: (i) clear detections of ...
We present the results of new rest-frame far-IR observations of the z = 4.25 radio galaxy, 8C 1435+635, which not only confirm that it contains an enormous quantity of dust (as first inferred from its mm-wave detection by Ivison 1995) but also allow the first meaningful constraints to be placed on the mass of this dust and associated gas. The new measurements consist of: (i) clear detections of...
Parkinson's begins when a certain class of brain cells begins to die, cells that produce a chemical called dopamine, which your body needs. Dopamine serves as a chemical messenger helping to control muscle activities. Loss of dopamine leads to the progressive loss of muscular control, giving rise to a variety of symptoms: stiffness, tremor, slow movement, difficulty with balance, difficulty wal...
Friction stir welding is advance joining process for different similar and dissimilar metals. It is commonly used for joining of Aluminium alloys. In this study an attempt were made to join commercial structuralaluminium with 7039 aluminium alloy. A zig-zag pattern of hardness was found in weld nugget. Microstructural characterization and fractography of joints were examined using optical and s...
The Inhibition of Nucleic Acid and Protein Synthesis in Trypanosoma Lewisi by the Antibody Ablastin.
2 Roberg, M., Jahrb f. wiss. Bot., 83, 567 (1936). 3 Burk, D., Biokhimiya, 2, 312 (1937). 4 Burris, R. H., F. J. Eppling, H. B. Wahlin, and P. W. Wilson, J. Biol. Chem., 148, 349 (1943). 5 Hamilton, P. G., W. E. Magee, and L. E. Mortenson, Bact. Proc., 82 (1953). 6 Burris, R. H., in Inorganic Nitrogen Metabolism, ed. W. D. McElroy and B. Glass (Baltimore: Johns Hopkins Press, 1956), p. 316. 7 M...
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