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The new opinion and mechanism that the simultaneously adsorption of complex pollution of both organic and heavy metals will be achieved on soil modified with amphoteric surface modifying agent, which have both charged group and organophilic group on one ASMA molecule, were proposed at first time, and its rationality was testified at the same time; The 50% was the critical CTMAB modifying ratio of soil CEC at which the organophilic bond modifying mechanism was emerged; The thermodynamic characteristics of adsorption of OPT and HMP on OMS were discovered ; The study revealed the surface peculiarity of OMS that the modifying agent were distributed at uneven scatter mode and multi-characters surface were coexisted on surface of OMS, revealed the adsorption peculiarity of OMS that multi-mechanisms were coexisted, confirmed the unequal charge amount modifying mode of OMS in which dual-modifying mechanism of both ion exchange and OPB were processed at the same time, and confirmed that the adsorption hobby to CTMAB was higher than that to Ca2+ on Lou soil.
首次提出了用两性表面修饰剂对土壤进行修饰改性,利用两性表面修饰剂所具有的荷电基团和疏水基团达到对土壤中有机、重金属污染物同时吸附的思路和机理,并通过实验证实了所提设想的合理性;发现了土壤CEC值的50%修饰比例是CTMAB开始显现以疏水键机制对土土样表面进行修饰的临界点;揭示了有机修饰改性土对有机物、重金属吸附过程的热力学特征,填补了该项研究工作的空白;阐明了修饰剂在改性土表面呈分散态的非均匀分布,改性土表面具有不同性质表面共存的表面特征和对污染物多机制共存的吸附特征,确定了阳离子表面修饰剂在土表面的修饰是一种离子交换和疏水键结合两种机制相伴并行且为非等电荷量交换的修饰反应模式,以及土具有对CTMAB的吸附偏好性远大于对钙离子吸附偏好性的特征。
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After the cell growth curves was recorded, RPE cells of the 3-5th passages were utilized. 2、Three different siRNA (siRNAl,siRNA2,siRNA3) targeting against human cx43 gene and one negative control siRNA were designed and transfected into cultured human RPE cells via liposome reagent. The most effective siRNA can be determined by semi-quantitative reverse transcription PCRRT-PCR. 3、To the most effective siRNA, after transfected into human RPEs with different concentration, the cellular proliferate activities were messured by MTT colorimetry ; the percentages of RPE in different cell circle phase was assayed by FCM; the changes of phenotypical properities were observed with SCM; the protein expression of cx43 was studied through immunocytochemistry stain and Weston blot; the communication intercellular was calculated with FRAP; and the ability of recovery was assessed by using an in vitro wound healing model.4、The total proteins of siRNA1 and RPE were seperated by two-dimensional gel electrophoresis and visualized by silver staining. Proteins with significant expression alterations were selected and their peptide mass fingerprints (PMFs were obtained by matrix-assisted laser desorption/ionization time of flying mass spectrometry (MALDI-TOF-MS).The PMFs were used to search NCBInr database by Auto MS-Fit software.
实验方法:1、培养原代的人RPE细胞,经过细胞角蛋白、S-100和神经胶质原纤维酸性蛋白免疫细胞化学鉴定后,通过AO/PI染色技术确定培养细胞的存活率,描记其生长曲线,第3-5代用于以下细胞实验2、生物合成针对人cx43基因的三条小干扰RNA和一条阴性RNA通过脂质体转染RPE细胞后,通过RT-PCR的方法确定抑制效率最高的干扰片断3、将该片段以不同浓度通过阳离子脂质体转染培养的人RPE细胞后,采用MTT法观察其对细胞的增殖力的作用;通过流式细胞仪观察其对细胞周期的影响;通过扫描电镜观察其对细胞形态的影响;通过免疫细胞化学和Weston blot观察其对cx43蛋白表达的作用;采用激光共聚焦和荧光淬灭恢复技术观察荧光恢复速率平均百分率,评价其对细胞间通讯功能的影响;通过制作RPE细胞损伤模型,观察其对损伤修复能力的作用4、分离纯化转染siRNA的RPE组和正常对照组RPE细胞的全部蛋白质,应用等电聚焦电泳和SDS-PAGE双向电泳技术,银染显示分离出的蛋白质斑点,经凝胶图像分析软件对两个样本进行胶图分析,寻找差异蛋白点。
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But in practical operating, overvoltage caused by reignition of the vacuum switching device frequently appears, and it result in damage of the capacitor bank or the switchgear itself. Ensuring the switchgear against reignition and installing a protective device are two main approaches to avoid the phenomenon. In this paper, a study on overvoltage caused by reignition due to capacitor bank switching with the vacuum switching device and its preventive measures are carried out. The main work which has been done and researches are as follows: 1. The producing mechanism of overvoltage and its influence factor are analyzed. It is pointed out that single-phase reignition is the main reason for damage of the switchgear and two-phase reignition is the main reason for damage of the capacitor bank,so overvoltage of single-phase reignition and two-phase reignition are the emphases of prevention. 2. Analysis of the special working condition of the operating switch for capacitor bank is carried out. It indicates that the vacuum switching device is difficult to realize no-reignition under this operation condition, so it is more practical to adopt protection devices. 3. Analyses of protection effect of RC and MOA and their shortages are carried out. It shows that the two methods can only restrain effectively overvoltage caused by single-phase reignition, and they cannot protect the capacitor bank when reignition of two-phase occurs. 4. The operation principle of G-R damping device is analyzed and discussed emphatically.
本文针对真空开关投切电容器组时因重燃而产生的过电压及其防治措施进行了研究,所开展的主要工作和研究结果如下: 1、对过电压的产生机理及其影响因素进行了分析,指出单相重燃是导致开关设备损坏的主要原因,而两相重燃则是导致电容器组损坏的主要原因,因此单相重燃和两相重燃过电压是防护的重点; 2、对电容器组操作开关的特殊运行条件进行了分析,指出在这种运行条件真空开关难于实现不重燃,因此采用保护装置更具有现实意义; 3、对RC与MOA的保护效果和存在的不足进行了分析,指出这两种方法均只能有效抑制单相重燃过电压,而不能在发生两相重燃时保护电容器组; 4、重点对G-R阻尼装置的工作原理进行了分析和讨论,指出该装置接入后线路中将会出现两种频率的高频振荡,而电容器组上的过电压是由这两种振荡共同决定的; 5、根据对上述两种振荡的分析指出存在一个最佳电阻值使得过电压最低,并提出了电容器组电压和最佳电阻值的近似求解方法; 6、使用电气暂态分析软件MATLAB对G-R装置的保护效果进行了仿真计算,证实该装置确实可以有效抑制重燃时的电容器组过电压; 7、根据仿真与近似计算结果的偏差提出了近似计算的修正方法,经过修正后的过电压计算结果与仿真结果吻合较好; 8、对G-R装置中放电装置G与阻尼电阻R的要求进行了分析,指出采用编织电阻和真空间隙可能是最佳选择。
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The results show that 60Co-γ ray radiation has the most remarkable effect on the degradation of organophosphorus pesticides such as fenitrothion, parathion, methyl-parathion, phorate and chlorpyrifos and the maximum degradation rates are over 85%. The degradation rates of methamidophos, acephate, malathion ,dimethoate are slightly inferior to them and the optimum degradation rates is just only 34.70%. At the same time, the contents of soluble total sugars, glucose, fructose, sucrose and total sugars in apple juice decrease unconspicuously, but the total acid content in apple juice and its color value and clarity increase. Based on a comprehensive consideration of the 60Co-γ radiation effect on the actual degradation of organophosphorus pesticides in apple juice and its main chemical and physical indexes, organophosphorous pesticides residue will be decreased to a lower level with radiation dose of about 5 kGy but the main chemical and physical indexes of export apple juice can not be affected.
结果表明: 60Co-γ射线辐照处理对苹果汁中杀螟硫磷、对硫磷、甲基对硫磷、甲拌磷、毒死蜱降解效果最为显著,最高降解率均在85%以上;对苹果汁中甲胺磷、乙酰甲胺磷、马拉硫磷和乐果的降解效果不显著,最高降解率仅为35%;在0~9 kGy辐照剂量范围内降解苹果汁中有机磷农药的同时,会使苹果汁中的可溶性固形物、葡萄糖、果糖、蔗糖及总糖含量轻微降低,苹果汁的总酸度有所增加,苹果汁的色值及透光率提高;综合分析60Co-γ射线辐照对苹果汁中有机磷农药的实际降解效果及对苹果汁主要理化指标的影响,选用5 kGy的辐照剂量已完全使苹果汁中的有机磷农药残留降低到一个很低的水平,又不会对苹果汁出口主要理化指标造成影响。
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The dissertation analyzed the influences of the collieries in north China to them.
本文主要从它对工业及其布局、对铁路、对矿业城市、对煤矿工人、对教育、对自然环境的诸方面进行考察,一一分析它对这些方面产生了哪些影响。
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The life-relatedness of poems of the early Tang Dynasty is seen in theexpression of the rise-and-fall theme of Urban Poems, the pursuit of individual valueof one's life of the Frontier Poets and Chivalry Poets, and the hope placed on lifeconsciousness in the intoning poems and peacefulness of life of the landscape poems,etc. In addition, it can also be seen in the expression of emotions and ambitions in aparticular image, the pursuit of and the persistence in integrity on the part of the poets,and in the choice and application of the different poetic forms like the Hepta-cantusand the sao style, etc.
初唐诗歌生命化现象普遍存在于都市诗对盛衰主题的表现、边塞诗和咏侠诗对诗人个体生命价值的追求、咏物诗对生命意识的寄寓和山水诗对生命的安顿等方面;此外,还体现在特定意象对情志的抒发,诗人对&风骨&的自觉追求和坚持,对诗歌形式诸如七言歌行、骚体诗等的有意识的选择和运用。
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Empirical results indicate that all three hypotheses of this study sustained: Hypothesis 1—"career development" and "training" in the enterprise repatriation program has positive influence on the affective organizational commitment of repatriates;"career development" has positive influence on the normative organizational commitment;"career development","training" and "compensation and benefit" has positive influence on continuance organizational commitment; Hypothesis 2—"conscientiousness" and "neuroticism" has positive influence on the affective organizational commitment;"conscientiousness" and has positive influence on the normative organizational commitment;"neuroticism" has positive influence on the continuance organizational commitment; and Hypothesis 3—"openness to experience" and "emotional stability" can enhance affective organizational commitment when "career development" is implemented by the organization;"openness to experience" can enhance affective organizational commitment when "training" is implemented by the organization;"conscientiousness" can reduce continuance organizational commitment when "career development" is implemented by the organization;"emotional stability" can reduce continuance organizational commitment when "compensation and benefit" is implemented by the organization; and "extraversion" can reduce continuance organizational commitment when "job arrangement" is implemented by the organization.
实证结果显示,本研究三大假设皆达部份成立,第一假设:企业施行回任措施中的「前程规划」与「教育训练」将可提升回任人员情感性组织承诺、施行「前程规划」将可提升规范性组织承诺、施行「前程规划」、「教育训练」与「薪酬管理」将会提升持续性组织承诺。第二假设:回任人员「严谨性」与「情绪稳定性」特质可提升回任人员情感性组织承诺、「严谨性」特质可提升规范性组织承诺、「情绪敏感性」特质将会提升持续性组织承诺。第三假设:「严谨性」与「情绪稳定性」特质对组织施行「前程规划」可提升情感性组织承诺、「开放的学习性」对「教育训练」施行可提升情感性组织承诺、「严谨性」对「前程规划」施行可降低持续性组织承诺、「情绪稳定性」对「薪酬管理」施行可降低持续性组织承诺、「外向性」对「工作安排」施行可降低持续性组织承诺。兹就上述结果提供对企业与后续研究者的建议。对企业的建议为:1。企业在回任措施中应加强前程规划的设计:企业除了就短期的薪酬与工作安排条件让回任员工愿意留任,亦应思考如要让回任员工能够投入工作中,长期的规划与发展不可缺少。2。外派人员人格特质甄选工具的运用:为了能找到具备严谨性、情绪稳定性与开放的学习性特质的人选,甄选用的工具即扮演著十分重要的角色,可利用人格特质测验、面谈等甄选工具。
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First, this paper presents three girders model with double cable planes which main girder and side girder is connected by rigid arms, analyzes the dynamic characteristic of Yonghe cable-stayed bridge and obtains its natural vibration modes (i.e., frequency, damping values and the mode shapes ) by ANLSIS structural analysis program and uses these parameters as dynamic dactylogram of the intact case of cable-stayed bridge. Using the passage of random as the ambient vibration ,the dynamic properties of Yonghe Bridge is measured and the modal parameter of its 15 years after is identified and used as dynamic dactylogram of the damaged case. By the finite element analysis and locale vibration test, damaged and undamaged modal parameter is analyzed and curvature mode shape, which is sensitive to damage state, is introduced as possible candidate for identifying and locating damage in the cable-stayed bridge. Selecting the branch of part measured point from modal parameter, this paper deduces the damaged index which can detect the possible damaged location of the cable-stayed bridge deck and identifies the damaged region and degree for Yonghe Bridge. For the purpose of structural condition monitoring in in-situ , from another viewpoint, this paper introduces the method called the best optimization vector to detect damaged location and degree. The accuracy and reliability of the method presented in this paper are demonstrated by static analysis and test and the healthy state of Yonghe Bridge can be evaluated.
建立了双索面通过刚臂与主梁及边梁相连的三梁式力学模型,采用ANSYS结构分析程序对永和斜拉桥进行动力分析,对其振动模态参数进行识别,以此作为斜拉桥完好状态下的动力&指纹&;采用自由交通流作为环境振源,对永和斜拉桥动力特性进行测试,识别出永和斜拉桥使用15年后的模态参数,确立了破损状态下的动力&指纹&;利用有限元分析、现场振动测试,对破损前后的模态参数进行分析,提取对破损状况较敏感的模态曲率作为斜拉桥破损诊断的参数;并从模态参数中选取部分点的分量,导出可以指示斜拉桥桥面大概损伤位置的Index损伤指标,识别出斜拉桥发生破损的区段及破损程度;考虑大型斜拉桥在线监测要求识别破损的具体位置,从另一角度提出采用最优矢量法具体确定破损发生的位置及程度;为验证本文研究成果,对永和斜拉桥进行静力分析及静力测试,对其健康状况提出可靠的评价。
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Also, the "MeiTai" pumpkin showed a little bit higher tolerance to pendimethalin than "NO1 pumpkin" cultivar.3 The differences in Inhibition rate on different cucurbits between two herbicidesResults showed that inhibition increased with rate of application of herbicides increase. There was little injury of pendimethalin at 5 ppm on "white beauty "muskmelon,"green farmNo9" watermelon,"Jinghu No2"squash and "MeiTai" pumpkin.
不同除草剂对不同瓜类抑制率的差异在除草剂用量5ppm~10ppm之间,随着浓度的增加,抑制有明显增强的趋势。5ppm施田补对&白美人&甜瓜、&绿农九号&西瓜、&京葫二号&西葫芦及&美泰赤粟&南瓜安全。10ppm对&绿农九号&也很安全,对&京葫二号&相对安全,对其它瓜类安全性不高。5ppm及10ppm的乙草胺对&绿农九号&西瓜安全,对&南瓜一号&相对安全。
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This part explains the purpose, significance and methods of the study. In the second section, it confirms the basic conceptions and definers of agricultural tourism and characteristics, and the function of agriculture and tourism is described and its impact on Chinese agricultural economy is analyzed, giving a further understanding of agricultural tourism. In Part III, it presents development, models and research of agricultural tourism in Countries in the world and Taiwan, and form the macro objective analysis the agricultural tourism development gap of China and International. The next three parts summed up the status and the existing problems of tourism tropical agriculture of Hainan, and proposed the development significance of Hainan's tropical agriculture tourism, and marketed analysis from product mix, tourist spending psychological and social development of Hainan's; and draw the advanced experience that the agriculture tour develops at home and abroad, suggest that the Hainan tropics agriculture develops principle; Seventh parts direction and suggestion having suggested that the agriculture tour develops to Hainan tropics on the first seven parts.
第一部分介绍本文研究的意义及方法、途径,第二部分介绍了农业旅游的相关概念、各种定义、内容及特征;并对农业旅游的功能和其对我国农业经济的影响进行剖析,加深对农业旅游的认识;第三部分介绍了世界各国及我国台湾地区一些先进国家的农业旅游发展现状、模式及相关研究,从宏观上客观的分析我国农业旅游发展与国际先进水平之间的差距;第四、五、六部分,总结了海南热带农业旅游的现状及存在的问题,提出对海南发展热带农业旅游的意义,并从产品结构、游客消费心理、社会发展等角度对海南热带农业旅游的市场情况进行分析;借鉴国内外农业旅游发展的先进经验,提出海南热带农业发展原则;第七部分在前几个部分的基础上提出了对海南热带农业旅游发展的方向及建议,建议要充分利用农业科技优势、合理规划热带农业资源、挖掘热带农业文化内涵,加强对海南热带农业资源的保护以及琼台合作,进一步发展海南热带观光农业产业。
- 推荐网络例句
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They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.
他们没有侵略性,但我大喊,并在他们的方向扔石头让他们过的线索,远离我,以防万一。
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In slot 2 in your bag put wrapping paper, quantity does not matter in this case.
在你的书包里槽2把包装纸、数量无关紧要。
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Store this product in a sealed, lightproof, dry and cool place.
密封,遮光,置阴凉干燥处。