有关存在的
- 与 有关存在的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Is analyzed The result shows that after ponding, the horizontal displacement and vertical displacement of dam increase to some different extent, the incensement is related to the height of dam's ponding.
结果表明,竣工期间在坝体和坝基的中间部位,发生的位移基本为重力方向,沉降比较大,而水平位移比较小;坝蓄水以后,其水平位移和竖直位移都有不同程度的增加,位移增加的大小与坝体蓄水的高度、上下游的水头差有关;同时防渗墙的存在造成和进一步加大了坝蓄水后位移的不均匀的变化。
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It is found thatthe fractal dimension D=1.25 corresponds to the lowest criticalcoupling constant αc=1.9,D=1.73 corresponds to the highest criticalratio of dielectric constants ηc=0.163,and when D≤1.145 bipolaronscan not exist at any rate.In chap,4,we will propose a novelapproach to the calculation of the exciton ground-state energy for thestrong-coupling case.Different from all previous methods,the wavefunction of the phonon part is assumed to take a form related to thewave function of the relative motion.We obtain the exciton energy bysolving the derived integrodifferential equation rather than select ahydrogen-like form to minimize the energy expectation.
结果发现,分数维的维数D=1.25对应最小的临界的电-声耦合常数(αo=1.9),D=1.73对应最大的临界的介电常数比(ηc=0.163),当分数维的维数D≤1.145时,双极化子无论如何也不可能存在,在第四章中,我们将提出一种新颖的变分方法来计算强耦合的激子-声子系统的基态能,不同于以前所有的方法,我们取声子的波函数与相对运动波函数有关的形式,而不是假定一个固定的关于相对运动坐标r的函数形式,得到相对运动波函数所满足的非线性的微分积分方程,我们数值求解这个微分积分方程得到系统基态能,而不是选择一个类氢原子的波函数变分使得能量的期待值最小。
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The results of the present research are as follows, The correlation between physico-chemical properties of organic compounds and their competitive power was studied, and it was indicated that organic compounds preferable to form H-bonding with organic matter of sorbents have stronger competitive power; Sorption behaviors of ionizable organic compounds in different species and their competitive power were examined, and the results showed that phenols and carbonxylic acids with benzyl circle have much stronger competitive power in molecular species than in ionized species, because negative charges of anionic forms can depressed their adsorption on the surface of the sediment; in contrast, organic bases such as aniline and p-chloroaniline show weaker competitive power in molecular species than in ionized species, and this is because both species of the organic bases could adsorb strongly onto the sediment; there is a correlation between competitive power of organic pollutants in multi-solute systems and their sorption isotherm nonlinearity in single-solute systems, and organic compounds whose sorption isotherms is linear in single-solute systems hardly have competitive power in multi-solute systems; Competitive sorption effects in more than two-solutes systems was studied, and it was exhibited that mixture of two cosolutes each of which could suppress sorption of nominal solute onto the sediment had synergistically competitive sorption effect on the nominal solute; A method about incorporating sorption/desorption of organic pollutants into river water quality model was developed, and discussion about degree of sorption/desorption effect on model prediction for different organic compounds was made, which will provide theoretical basis and practical processes for setting up more accurate water quality model.
论文主要取得了以下研究成果。(1)有机化合物的吸附竞争能力与其物化性质具有相关性,易与沉积物有机质形成氢键的化合物其竞争能力也比较强;(2)可离子化有机化合物的吸附竞争能力与其存在形态有关。酚类、含苯环的羧酸类化合物,其离子态的吸附竞争能力远小于分子态,其机理为有机酸阴离子所带的负电荷抑制了表面吸附能力,主要发生分配作用;而苯胺类化合物,其离子态和分子态都表现出显著的竞争能力,而且离子态的竞争能力略强于分子态,原因在于有机碱阳离子所带的正电荷促进了其表面吸附能力;有机化合物竞争能力的强弱与其单组分吸附等温线的非线性程度具有一定的相关性,吸附等温线近似为线性的化合物没有或只具有微弱的竞争能力;(3)对目标有机化合物的吸附具有竞争效应的有机化合物混合后,将对目标有机化合物的吸附产生协同竞争效应;(4)以京杭运河为例,率先提出了将有机污染物的吸附/脱附作用及水文水力参数耦合到水质模型中的方法,并讨论了吸附/脱附作用对不同有机污染物预测模型的影响,为建立更准确的水质模型及进行更客观的风险和生态评估提供了参考依据。
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thearticle rectifies tlebelief of innocent Theory on chidren's early development, andproposes, that the process of children;s cognition is ambitious learning, this type of learning consists in the dulcet nontextual stracture existing in childrens' mind, and is actualized through systematic act learniy and games.
内容提要:本文矫正了有关儿童早期发展的&无知论&观念,提出婴幼儿的认知过程是一个雄心勃勃的学习世界的观点。这种学习的形式,存在于婴幼儿内在固有的美妙的非文本结构之中,并通过系统的动作学习和游戏实现学习的目的和过程。
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Many nanotwins were formed in this triangular region. HREM observations showed that nanotwinning dislocations were nucleated at noncoherent twin boundaries with the local stress concentration, and the nucleation is related to the dislocation dissociations at the boundary ledges. The proceeding of these nanotwins is the homogenous shears of 1/6 [11〓] twinning dislocations, which is that the trailing 1/6 [112] twinning dislocations repel the leading twinning dislocations to proceed in the (111) planes. Therefore, twinning dislocations at the twin tip appear to be on one side of twin, forming a noncoherent twin boundary with a semilenticular shape.
在此三角区域内发现许多纳米孪晶的存在,通过高分辨电镜手段观察到纳米孪晶中的孪生位错是在具有原位应力集中的非共格入射孪晶界上形核的,纳米孪晶的形核与界面的台阶位错及其位错分解反应有关,纳米孪晶的行进是1/6[11〓]孪生位错均匀切变机制,即每一个(111)孪生面上对应一个孪生位错,其中拖尾的1/6[11〓]孪生位错将会推动领先的孪生位错行进,于是在形变孪晶头部位置的孪生位错排列常常出现在形变孪晶的一侧界面,形成一个半透镜状的非共格孪晶界。
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Psychic powers and extra-sensory perception rank among the top ten unexplained phenomena if for no other reason than that belief in them is so widespread. Many people believe that intuition is a form of psychic power, a way of accessing arcane or special knowledge about the world or the future. Researchers have tested people who claim to have psychic powers, though the results under controlled scientific conditions have so far been negative or ambiguous. Some have argued that psychic powers cannot be tested, or for some reason diminish in the presence of skeptics or scientists. If this is true, science will never be able to prove or disprove the existence of psychic powers
对灵力和超感知觉的信仰流布甚广,就凭这一点,这两样东西也应该进入十大未解之谜的行列许多人相信,直觉就是灵力的一种表现形式、一种获取有关世界或未来的特异知识的方法研究人员已经对一些自称拥有灵力的人进行了测试,但是迄今为止,他们在受控实验室条件下得到的都还是否定或含糊的结果有些人辩称灵力不可测试,因为它会因怀疑论者或科学家的在场而莫名其妙地减弱如果这是真的,科学就永远无法证明或驳斥灵力的存在
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Depending on this thought, and according to the relating principles of the science about system, we carried through the initial creating thought about innovation , which have already been discussed frequently by the experts. The innovative elements are the most radical factors in the innovative system, which are also the basal ingredients that creating the system. Complexity and uncertainty are the intrinsic characters of the factors, which endow the innovative activities with insignificance of unfolding; the mechanism of non-linearity makes these elements to produce all kinds of affiliations, subsequent the mechanism of conformity coordinates as well as colligates and blends and advances on the basis of non-linearity, thereby the innovative behaviors achieve the leap in the affects and functions, so the systematic affects and functions forms, the innovative behaviors construct the practical framework in the landscape and portrait orientation; in fact, the process of the systematism of innovation is human beings social behaving, so, the evolvement of the systematism of innovation possesses the essential natures of opening and arrangement as well as self-organizing and rushing, which are the principles of evolvement.
我们就是立足于这一思维方式,运用系统科学的有关原理,对近几十年来被学者专家频频讨论的词——创新系统进行了生成性的初步思考:创新要素是创新系统的最基本的因素,也是生成创新系统的基本因子,复杂性和不确定性是创新要素与生具有的内在秉性,而正是这些秉性的存在才赋予了创新活动以开展的现实意义;非线性机制使得各创新要素之间产生着千丝万缕的联系,整合机制又在非线性机制的基础上进行整理、综合、融会和提升,从而实现了创新行为在效应和功能上的飞跃,形成了创新的系统效应和功能,创新行为在时间和空间上建构着系统的实践结构;创新系统化毕竟是人类的社会实践行为,在创新系统化的过程中创新主体要积极地使其具有开放性、层次性、自组织性和涌现性,这也是创新系统化的运行理念。
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At the same time, the fouling mechanism of membranes given in this thesis can give a reasonable explanation on the change of membrane performance. Our results show that the magnetization of membranes can effectively improve the anti-fouling ability of the PAN- Fe_3O_4 membrane. The obtained result may give insight to the development of new membranes with a good anti-fouling performance in the filtration of blood solution. No chemical bond was found between PAN and Fe_3O_4 in the membrane at room temperature. The addition of Fe_3O_4 can improve the temperatures of dehydrogenated reaction and decomposition of PAN but dot change the glassy transition temperature. The resistance against acid is stronger than the resistance to base for a PAN- Fe_3O_4 membrane.
结果表明在PAN- Fe_3O_4超滤膜制备过程中使用外加磁场作用能有效提高膜的耐污染能力,这一结果为开发适用于血液处理的耐污染超滤膜提供了一种新途径;在PAN- Fe_3O_4超滤膜中,四氧化三铁与PAN在室温下没有形成化学键,也不存在官能团之间的相互作用;添加Fe_3O_4对膜的玻璃化温度没有影响,但能提高PAN环化脱氢反应的温度和分解温度;PAN- Fe_3O_4超滤膜的耐酸性强于耐碱性,在pH值为10以上的溶液中由于水解作用而溶解,使得膜失去使用价值,膜的耐酸性与酸的种类、浓度和氧化性有关。
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This essay analyzes the actuality of investigation in China Mass-economics and points out shortages of present investigation in the area: two falls and two disjoints , namely the fall between qualitative investigation and quantitative investigation, the fall between macroscopic investigation and microcosmic investigation, the disjoint between theory and practice, the disjoint between economical theory and communication theory; the causations of the deficiency are: from subjective view neglecting the localization of overseas achievement in Mass-economics and the investigation of ontology.
内容提要:本文对五本期刊1990年以来有关传媒经济的研究文章进行了整理和考察,分析了我国传媒经济学研究的现状,指出了当前传媒经济研究的不足之处:&两个落差、两个脱节&,即定性研究与定量研究的落差、宏观研究与微观研究的落差、理论与实践的脱节、经济学理论与传播学理论的脱节;造成不足的原因是:主观上忽视了国外传媒经济研究成果的本土化、忽视了传媒经济学的本体论研究,客观上存在着体制因素的制约、人文科学研究习惯的制约以及研究者自身素质的制约;本文对今后传媒经济学的研究提出了建议:建立传媒经济学研究的科学构架、建立适合本学科特点的研究方法、充分吸收经济学的理论成果等。
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Mechanized construction of high-grade highway road status, asphalt concrete, cement concrete, RCC, as well as supporting the existence of grass-roots construction machinery and accessories in the focus of questions should consider the issue of the roller compacted asphalt concrete machinery importance; cement concrete slipform paver machine as the leading equipment machines for concrete mixing equipment related to measurement and mixing homogeneity of the importance of indicators; of RCC and grass-roots construction machinery, mixing equipment is still emphasize the measurement accuracy and mixing uniformity; on the grass-roots level paver problem, development and the condition of our country to adapt the automatic leveling of the ground plane; stone processing counterattack crusher used to solve the problem of the ratio of the needle plate.
高等级公路路面机械化施工的现状,沥青砼、水泥砼、碾压砼以及基层施工机械配套存在问题和配套中重点应考虑的问题,沥青砼的碾压机械的重要性;水泥砼滑模摊铺机作为主导设备机对砼搅拌设备中有关计量及搅拌均匀性指标的重要性;对碾压砼和基层施工机械,依然强调搅拌设备的计量准确和搅拌均匀性;对基层摊铺问题,发展与我国国情相适应的自动找平的平地机;石料加工中使用反击式破碎机解决针片状比例的问题。
- 推荐网络例句
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In the United States, chronic alcoholism and hepatitis C are the most common ones.
在美国,慢性酒精中毒,肝炎是最常见的。
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If you have any questions, you can contact me anytime.
如果有任何问题,你可以随时联系我。
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Very pretty, but the airport looks more fascinating The other party wisecracked.
很漂亮,不过停机坪更迷人。那人俏皮地答道。