等浓度
- 与 等浓度 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The article in recent years the research progress of disease of oral cavity of TP prevention and cure makes one overview. The compositive TP of the basic research 1.1 TP of 1 TP is the floorboard that phenolic apperception of a kind of many hydroxyl closes matter, 25% what hold tea dry weight about, its are main component includes to express gallnut of gallnut catechu element gallnut of element of catechu of gallnut of acerbity ester, watch, watch catechu element is acerbity element of catechu of ester, watch, express gallnut of gallnut catechu element among them acerbity ester content is highest, occupy the 80%[1] of catechu element about, fighting oxidation with its unique element structure, fight the position with fight the respect such as tumor to have choppy, significant. The 1.2 TP absorption in oral cavity and metabolization Lee [2] is measured normally inside a hour after healthy person is chewing green tea Xie Huo contains juice of gargle green tea, content of the TP in saliva is very high, after observing green tea passes salivary enzymatic hydrolyze, TP is slow release and in oral cavity;Yang of local play action [the salivary level after 3] checked 6 volunteers to drink tea, chroma of the TP in making clear the saliva after drinking tea as a result is serous TP pH indicator 2 times, and the salivary TP concentration that contains gargle tea solution a few minutes to be able to produce higher level, and TP can be absorbed through oral cavity mucous membrane.
本文就近年来TP防治口腔疾病的探究进展作一综述。1 TP的基础探究1.1 TP的组成TP是一类多羟基酚类化合物的总称,约占茶叶干重的25%,其主要成份包括表没食子儿茶素没食子酸酯、表没食子儿茶素、表儿茶素没食子酸酯、表儿茶素等,其中表没食子儿茶素没食子酸酯含量最高,约占儿茶素的80%[1],并以其独特的分子结构在抗氧化、抗突变、抗肿瘤等方面占有重要的地位。1.2 TP在口腔中的吸收和代谢Lee等[2]测得正常健康人在咀嚼绿茶叶或含漱绿茶液后的一个小时内,唾液中TP含量很高,并观察到绿茶通过唾液酶水解后,TP缓慢释放并在口腔局部发挥功能;Yang等[3]检查了6位志愿者饮茶后的唾液水平,结果表明饮茶后唾液中TP浓度是血浆TP浓度的2倍,而含漱茶溶液几分钟即可产生更高水平的唾液TP浓度,且TP可通过口腔黏膜吸收。
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The main work can be summed up as follows: Firstly, we studied the thermal-field properties of VCSELs, and analyzed the influences of current spreading, material parameters and operating conditions on the temperature distributions. Secondly, we began with the electrode voltage and calculated the equipotential s distributions, compared the distributions of voltages and current densities in different depths of VCSELs, and then studied the influences of the oxide-confining region with different position or thickness, and the different sizes of the gain-guided aperture and emitting window on the distributions of the injected current density, carrier concentration and temperature in the active region. Thirdly, we realized the coupling of electricity, optical and thermal-fields, worked out the threshold voltage, calculated the distributions of the injected current density, carrier concentration and temperature under different offset voltages, and analyzed the impacts of temperature profile and carrier density on the refractive index, Fermi levels and optical-field. Finally, we gave the equipotential line distributions with considering N-DBR and double oxidized-confining regions, and analyzed theinfluences of N-DBR and double oxide-confining regions on the distributions of the current density, carrier concentration, temperature and optical-field.
具体工作可以概括如下:首先,研究了VCSEL的热场特性,分析了电流扩展,材料参数和工作条件对于温度分布的影响;其次,从电极电压入手,计算出激光器中的等势线分布,并对不同深度处的电压和电流分布进行比较,研究了高阻区的不同位置和不同厚度、限制层和出射窗口半径的大小对电流密度、载流子浓度和温度分布的影响;再次,实现了电、光、热耦合,求出了阈值电压,计算了不同偏置电压下的电流密度分布、载流子浓度分布和热场分布,分析了温度和载流子浓度变化对折射率、费米能级和光场的影响;最后,给出了考虑N-DBR和双氧化限制层时激光器中的等势线分布,分析了N-DBR和双氧化限制层对VCSEL电流密度、载流子浓度、温度和光场分布的影响。
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By use of the Fischer-Tropsch reaction in a C-H-O system, we discussed the relationships between inorganic CO〓 and some physical chemistry conditions, such as Oxygen flee degree , temperature, pressure, other objects consistency and catalyzer. a when T=200K~2000K, if f〓>0, the reaction of generating CO〓 will be dominant, CH〓 hardily exists; b when T>1000K, CH〓 is not propitious to exist, carbon in system almost exists in form of CO〓; c the more pressure, the more CO〓 is propitious to exist; d the more consistency of CO, O〓 and H〓O, the more CO〓 is propitious to exist, the more consistency of H〓, the more CH〓 is propitious to exist.
依据C-H-O体系费托反应的简化模型,讨论了氧逸度、温度、压强、其它物质浓度、催化剂等物理化学条件对无机成因CO〓生成的影响,从理论上讨论了在地质环境中,无机成因CO〓存在的物理化学条件:1在T=200K~2000K的温度范围内,体系中一旦氧逸度>0,生成CO〓的反应将占绝对优势,CH〓几乎不可能存在;2T>1000K时,不利于CH〓形成,使体系中的碳主要以CO〓的形式存在;3体系压强越大,越有利于CO〓的形成;4反应物CO、O〓、H〓O的浓度越高,越有利与CO〓的存在,H〓的浓度高有利于CH〓的形成。5地质成藏作用可以经历很长的地质年代,这足以补偿矿物岩石中的Ni、Mo、Fe、Co、Ru等催化性能的降低及其它动力学条件的不足,使得费托反应可能发生,从而生成无机成因的CO〓和烃类。
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The osmotic coefficients and saturated vapor pressures have been calculated at the different temperatures .The experimental values of the osmotic coefficients for the Li_2SO_4-H_2O system were consistent with the values in the references. The results revealed the rules of the changing in osmotic coefficients and saturated vapor pressures with ion strengths and the molality fractions of Li_2B_4O_7 at different temperatures. The isopiestic equilibrium molalities were correlated by using the modified and the extended Zdanovskii rules for non-ideal mixtures, and obey well the Zdanovskii rules. The ion interaction parameters of Pitzer model have been determined by using the two methods for Li_2SO_4-Li_2B_4O_7-H_2O at 298.15K system.
本文计算了不同温度下该纯盐体系和混合盐体系的渗透系数和饱和蒸汽压,并将298.15K下的纯盐溶液渗透系数的实验值与文献值进行比较,取得了相一致的结果;揭示了不同温度下渗透系数和饱和蒸汽压随离子强度及Li_2B_4O_7质量摩尔浓度分数yb的变化规律;本文用Zdanovskii规则修正式和扩展式关联了298.15K下该混合盐体系的等压平衡浓度之间的关系,计算结果表明用这两个方程可以描述该体系在全浓度范围内的等压平衡浓度间的关系。
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Finally, the grafting polymerization of textile materials initiated by microwave low temperature plasma was conducted. Knitted cotton fabric was grafted by AMPS first, then knitted cotton and terylene/cotton fabrics were grafted with AMPS/NIPA dualistic monomers respectively. By means of grafting polymerization, the P dualisticintelligent hydrogel was added to textile.The influences of the factors on add-on, such as treatment time and power of plasma, concentrations of crosslinking agent and total monomers, proportion of AMPS, polymerizing temperature and time etc, was studied fully. The optimal conditions of grafting polymerization initiated by microwave low temperature plasma were determined by orthogonal design, variance analysis and mathematical statistics method so as to analyze the main influencing factors. Then swelling/deswelling kinetics, temperature-sensitivity and pH-sensitivity of grafted textile were studied. The performance indexes of hydrostatic pressure, moisture permeability and bursting strength of the knitted cotton and terylene/cotton fabrics before and after grafting were compared and evaluated synthetically.
此后用微波低温等离子体引发纺织材料的接枝聚合反应,分别研究了棉针织物接枝AMPS和棉、涤棉混纺针织物接枝AMPS/NIPA二元单体,使智能凝胶以接枝的方式添加到纺织材料上;详细探讨了微波低温等离子体处理功率和时间、总单体浓度、AMPS单体浓度、交联剂浓度及聚合反应温度和时间等因素对增重率的影响,通过正交设计、方差分析及数理统计对各影响因子进行分析,确定了微波低温等离子体引发接枝聚合的最佳工艺条件;对接枝纺织材料的失水-吸水动力学、温度敏感性、pH敏感性等进行了研究;对接枝前后棉、涤棉混纺针织物的静水压、透湿性和顶破强力等服用性能指标进行了对比和综合评价。
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Priority PAHs recommended by USEPA were all detected, and the mass concentrations of individual PAHs was between 1.49 and 87.43ngg^(-1), The PAHs with low molecular weight, such as Nap, Flu, Ace were observed in relatively low mass concentrations. The PAHs with high molecular weight, such as Chrysene, Indeno [1, 2, 3-cd] pyrene, Benzo perylene were relatively abundant and the mass congcentration of BghiP was the highest. The total mass congcentration of 16 PAHs exceeded standard of Holand from 10 to 40 times, and in middle pollution level comparatively with other districts.
美国环保总署推荐优先控制的16种多环芳烃均被检出,多环芳烃单体的质量浓度在1.49~87.43ngg^(-1)扩之间;其中萘、药、苊等低分子量芳烃的质量浓度相对较低;窟、茚并[1, 2, 3-cd]苝、苯并苝等高分子量芳烃的质量浓度相对较高,苯并苝的质量浓度最高。16种多环芳烃的质量总浓度超过荷兰政府规定无污染土壤PAHs值的10~40倍;与国内外其他地区相比较,多环芳烃污染处于中等水平。
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During using anaerobic fermentation slurry as insecticide, there had many problems that are random using, non-strictly prevention and curing time, non-suitable temperature and consistency mixture ratio ctc. In this research, fristly the different mixtures are made according to the different ratio of slurry to additive. Then the insecticidal effects of the mixture are tested in different conditions so as to find the good matches of slurry and additive in laboratory. According to the up result of the good matches extents of mixture, the field experiment is made to test the mixture's insecticidal chraricter and is further found new dosage form which has many good indexes such as good insecticidal effectiveness, little additive dosis ctc. So as to looking for the dosage form's synergism, the significant analysis is done and the characters of the dosages are tested which are ecological and environmental and the new types of dosage are determined. At last, for proving the dosage's field insecticidal potency, the wide field area experiments are done and four new style dosages are triturated which adapt ecological agriculture development. Aadditionally the effective period of the mixtures are tested when other experiments are done.
本文针对厌氧发酵液作为杀虫剂施用时,随用即配和无严格的增效剂种类、喷施时间及温度、浓度配比等现象,首先对各添加剂与厌氧发酵液配成的不同浓度的混和剂在不同条件下进行实验室测试,确定杀虫率高的浓度范围,进一步细化各混和剂浓度范围作田间试验,选出杀虫效果好,添加剂量少等各项指标都好的剂型并进行显著测定,确定出各剂型的增效情况;然后对选出的剂型进行生态和环保特性测定,以便确定新剂型,最后对选定剂型作大区试验来验证田间杀虫药效,最终研制出了4种适合生态农业发展的新型无污染药肥,并对选出的混合剂进行了有效期实验测定。
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Atmospheric pollen concentrations in a particular region vary markedly in response to geographical location, vegetational component, and various meterological parameters on many different time scales. Generally, during the 24-hour day, the highest pollen concentrations are observed at daylight, the lowest values are registered at night.
不同地区受其地理位置、植物组成和气候等多种因素的影响,空气花粉种类和浓度的变化模式有所不同,一般情况,一个地区白天空气花粉浓度高,夜晚浓度低;春夏季花粉浓度高,冬季花粉浓度低;春夏季乔木类植物花粉浓度高,而秋季草本类植物花粉浓度高。
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An attempt was made to remove color from simulated wastewaters containing Acid Scarlet GR and Reactive violet K-3R by cloud point extraction using a nonionic surfactant of Triton X-114. The influence of the concentrations, equilibrium temperature and equilibrium time on the extraction efficiency was tested. The experimental results show that the extraction efficiency to dye increases with increasing concentration of TX-114 and salt or decreasing initial dye concentration.
本文选用非离子表面活性剂TX-114作浊点萃取剂,研究了由酸性大红与活性紫构成的单元和二元混合染料模拟有色废水的萃取脱色过程,讨论了表面活性剂浓度、染料浓度、盐浓度、平衡温度、平衡时间等因素对萃取效率的影响结果表明,提高表面活性剂浓度、盐浓度有利于提高萃取效率,而染料浓度增加则使萃取效率略有下降。
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Diabetes mellitus is a kind of chronic and worldwide disease, and tight glycemic control is critical in manging DM and preventing complications such as nephropathy, neuropathy and retinopathy. In order to relieve DM patients pain and decrease the risk of crossinfection, noninvasive ways to monitor blood glucose concentrations are preferred, and one approach is to monitor glucose concentrations in tear fluid. This review covers recent understanding of features of tear fluid and relevant changes in DM, the influence of different collecting methods in tear glucose concentration, and attempts to monitor tear glucose concentration in situ by using contactlens based sensing devices.
糖尿病(diabetes mellitus,DM)是一种慢性疾病,也是一种全球性疾病,糖尿病患者长期理想控制血糖有助于防止或延缓糖尿病肾病、神经病变和糖尿病视网膜病变等慢性并发症的发生,为了减少患者的痛苦和降低交叉感染发生的危险,人们想到了通过泪糖浓度这一无创指标来监测血糖控制情况的可能性,我们综合近年的相关研究进展,从泪液的特性及糖尿病患者的相关改变、不同收集方法对泪糖浓度的影响及检测泪糖浓度的产品等方面进一步探讨泪糖浓度作为糖尿病病情评价指标的可行性。
- 推荐网络例句
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Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.
Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。
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I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.
我来只是现在,'歼灭战perfuming自己与胡努特,那麼,他来到和SAT 。
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The shamrock is the symbol of Ireland and of St.
三叶草是爱尔兰和圣特里克节的标志同时它的寓意是带来幸运。3片心形叶子围绕着一根断茎,深绿色。