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The main creating aspects are finding and clarify such a fundamental physical process that the grain boundaries emit vacancies under compressive stress to induce solute non-equilibrium grain boundary dilution and absorb vacancies under tensile stress to induce non-equilibrium grain boundary segregation, formulizing the structural equations and the composition equations in force equilibrium in grain bounary region to describe this physical processes and the kinetic equations for non-equilibrium grain boundary segregation under tensile stress, calculating the modulus in grain boundary region from the expermental data of grain bounday segregation using the structure and coposition equations and calculating the diffusion coefficients of vacancy-solute atom complexes using the kinetic equation simulating the experimental results of grain boundary segregation.

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Results there were94food poisoning events and1666total sufferers during3years,that is to say,about31.3events and555sufferers per year in average.1died in2003.the food poisonings occurred mainly in the second and third quarter of a year.baoan and nanshan are the most common strict where food poising oc-curred.communality food poison cases are the most common ones,in which the number is71and victims are1429.most food poi-soning cases were caused due to eating unsanitary meats and meat products.bacterium is the main factors resulting in food poisoning（60.6%）.vibrio parahaemolyticus is the first common pathogen of all the bacillary food poisoning（40.3%）.

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This is because milk contains more calcium and dairy protein, sugar and starch contains relatively reduced; easy to form after ingestion of calcium soap cause constipation; life without the law, the baby did not train on time and bowel habits, but also easily lead to constipation; some chronic diseases such as rickets, Dermatomyositis also easily leads to malnutrition, such as infants and children caused by constipation, young parents must pay more attention to early prevention.

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Activation of the surface DORs causes a slow Ca〓 elevation by both inositol 1, 4, 5-trisphosphate receptor-mediated intracellular Ca〓 release and extracellular Ca〓 entry, resulting in a slow and long-lasting increase in intracellular Ca〓, exocytosis, DOR insertion and CGRP release.

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To solve this problem, it is necessary not only to consider the relationship caused by the difference of the method of projection, by that of the elements of ellipsoids and by that of the original data between the new and the old coordinates, but also to consider the observation errors caused by the two measurements.

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Glutinosa and Solarium lycopersicum,while Tomato yellow leaf curl China virus and its DNAβinduces distinctive vein thickening and enations as well as leaf curling.To investigate the genetic determinants of the phenotypic differences, we inoculated Nicotiana spp.with infectious clones of TbCSV/DNAβand TYLCCNV/DNAβpseudorecombinants and showed that symptoms co-segregated with the DNAβcomponent.

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They think that microwave can accelerate rate because MW heating can lead to overheat solvent and high pressure. And it is also possible that "heat spot" with high temperature in some materials cause the fast rate.

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The dissertation presents somecontents about the vacuum precooling as follows: 1. Studies on the evaporation cooling principles of fruit and vegetable There are different optimal storing conditions for different vegetables and fruits.And the vegetable and fruit precooled by vacuum must be fit with the storingcondition. A low temperature will result in the frozen scald, and a high temperaturewill not meet the precooling objective.

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