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APPLICABILITY OF THE MASS ACTION LAW IN COMBINATION WITH THE COEXISTENCE THEORY OF METALLIC MELTS INVOLVING COMPOUND TO BINARY METALLIC MELTS 被引量:4
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作者 J.ZhangMetallurgical Engineering School, University of Science and Technology Beijing, Beijing 100083, China Manuscript received 9 March 2001 in revised form 7 August 2001 《Acta Metallurgica Sinica(English Letters)》 SCIE EI CAS CSCD 2002年第4期353-362,共10页
Based on the atomicity and molecularity as well as the consistency ofthermodynamic properties and activities of metallic melts with their structures, the coexistencetheory of metallic melts structure involving compoun... Based on the atomicity and molecularity as well as the consistency ofthermodynamic properties and activities of metallic melts with their structures, the coexistencetheory of metallic melts structure involving compound has been suggested. According to this theory,the calculating models of mass action concentrations for different binary metallic melts have beenformulated. The calculated mass action concentrations agree well with corresponding measuredactivities, which confirms that the suggested theory can reflect the structural characteristics ofmetallic melts involving compound and that the mass action law is widely applicable to this kind ofmetallic melts. 展开更多
关键词 metallic melts activity mass action law coexistence theory
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Applicability of mass action law to sulphur distribution between slag melts and liquid iron 被引量:8
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作者 Jian Zhang Metallurgy School, University of Science and Technology Beijing, Beijing 100083, China 《Journal of University of Science and Technology Beijing》 CSCD 2002年第2期90-98,共9页
According to the mass action law and the coexistence theory of slagstructure, the calculating models of mass action concentration for CaO-MgO-FeO-Fe_2O_3-SiO_2,CaO-MgO-MnO-FeO-Fe_2O_3-P_2O_5-SiO_2 and CaO-MgO-MnO-FeO-... According to the mass action law and the coexistence theory of slagstructure, the calculating models of mass action concentration for CaO-MgO-FeO-Fe_2O_3-SiO_2,CaO-MgO-MnO-FeO-Fe_2O_3-P_2O_5-SiO_2 and CaO-MgO-MnO-FeO-Fe_2O_3-Al_2O_3-P_2O_5-SiO_2 slag melts areformulated and sulphur distribution between the slag melts and liquid iron is treated. It is foundthat CaO, MnO and FeO promote desulphurization, while MgO is detrimental to desulphurization. Inaddition, the sulphur distribution coefficients between the slag melts and liquid iron andpresented. 展开更多
关键词 mass action law coexistence theory of slag structure activity massaction concentration
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Applicability of law of mass action to distribution of manganese between slag melts and liquid iron 被引量:1
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作者 张鉴 《中国有色金属学会会刊:英文版》 CSCD 2001年第5期778-783,共6页
According to the law of mass action and the coexistence theory of slag structure, the distribution of manganese between MnO FeO SiO 2 and MgO MnO FeO SiO 2 slag melts as well as liquid iron was analyzed. It is shown t... According to the law of mass action and the coexistence theory of slag structure, the distribution of manganese between MnO FeO SiO 2 and MgO MnO FeO SiO 2 slag melts as well as liquid iron was analyzed. It is shown that K ′ Mn and K MnO are only dependent on temperature and don’t change with basicities and compositions of slag melts. So the distribution of manganese between the above mentioned slag melts and molten iron obeys the law of mass action. But analysis of experimental results from other sources shows that K ′ Mn and K MnO really change with basicities of slag, which is probably arisen from not approaching equilibrium under low basicity slag melts. 展开更多
关键词 manganese distribution the law of mass action the coexistence theory of slag structure mass action concentration
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A Back Look on the Binary Phase Diagrams of Metals from the Mass Action Law and the Coexistence Theory of Metallic Melts
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作者 Jian Zhang Metallurgy School, University of Science and Technology Beijing, Beijing 100083, China 《Journal of University of Science and Technology Beijing》 CSCD 2001年第1期15-19,共5页
According to the mass action law and the coexistence theory of metallic melts, the mass action concentrations of Cu-Mg, Bi-Tl and Ni-Al melts involving compound formation have been calculated. The calculated results s... According to the mass action law and the coexistence theory of metallic melts, the mass action concentrations of Cu-Mg, Bi-Tl and Ni-Al melts involving compound formation have been calculated. The calculated results show that, except the ultimate case of pure element, when two elements are present in the melts, all structural units (atoms and molecules) without exception will be present in the melts, i.e., their concentrations may change from great to small, but they will not vanish into nothing, and only under such conditions, the calculated results both agree with practice and obey the law of mass action. In view of that over considerable wide composition range, the activities of both elements of the three solid binary alloys mentioned above have been measured, this seems in contradiction with the present relevant phase diagrams, in which the structural units are determined by composition range, so the latter needs further investigation and consideration. 展开更多
关键词 ACTIVITY phase diagram the mass action law the coexistence theory
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RENEWAL OF BASIC LAWS AND PRINCIPLES FOR POLAR CONTINUUM THEORIES (Ⅵ)—CONSERVATION LAWS OF MASS AND INERTIA
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作者 戴天民 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 2003年第12期1369-1374,共6页
The purpose is to reestablish the coupled conservation laws, the local conservation equations and the jump conditions of mass and inertia for polar continuum theories. In this connection the new material derivatives o... The purpose is to reestablish the coupled conservation laws, the local conservation equations and the jump conditions of mass and inertia for polar continuum theories. In this connection the new material derivatives of the deformation gradient, the line element, the surface element and the volume element were derived and the generalized Reynolds transport theorem was presented. Combining these conservation laws of mass and inertia with the balance laws of momentum, angular momentum and energy derived in our previous papers of this series, a rather complete system of coupled basic laws and principles for polar continuum theories is constituted on the whole. From this system the coupled nonlocal balance equations of mass, inertia, momentum, angular momentum and energy may be obtained by the usual localization. 展开更多
关键词 polar continua coupled transport theorem conservation law of mass and inertia
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Electrolytic Sampling from Pure Copper and Common Brasses Ⅰ: Calculation of the Mass Dissolved from the Samples according to Faraday's Law 被引量:2
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作者 Jin ZHANG Jian-Nan YANG(Chemistry Department, Liaoning University, Shenyang, 110036) 《Chinese Chemical Letters》 SCIE CAS CSCD 1997年第2期167-170,共4页
In a procedure for electrolytic dissolving pure copper and common brasses, the approximate electrochemical mole mass(k) of the sample was determined in accordance with the brand of the sample, a stitable electrolyte w... In a procedure for electrolytic dissolving pure copper and common brasses, the approximate electrochemical mole mass(k) of the sample was determined in accordance with the brand of the sample, a stitable electrolyte was selected to make the current efficiency equal to 100%, and then the dissolved mass of samples was calculated according to Faraday's law(m=klt).Three representative samples were sampled by the electrolytic dissolution method and the calculated dissolved amounts were equal to the values by weighing the anode.The cxperimental results of zinc and copper in the anode liquor are in agreement with certified values. 展开更多
关键词 mass Electrolytic Sampling from Pure Copper and Common Brasses Calculation of the mass Dissolved from the Samples according to Faraday’s law
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Quantum Statistics in Physical Chemistry, the Law of Mass Action and Epicatalysis
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作者 George S. Levy 《Open Journal of Physical Chemistry》 2018年第4期81-99,共19页
The law of mass action, based on maxwellian statistics, cannot explain recent epicatalysis experiments but does when generalized to non-maxwellian statistics. Challenges to the second law are traced to statistical het... The law of mass action, based on maxwellian statistics, cannot explain recent epicatalysis experiments but does when generalized to non-maxwellian statistics. Challenges to the second law are traced to statistical heterogeneity that falls outside assumptions of homogeneity and indistinguishability made by Boltzmann, Gibbs, Tolman and Von Neumann in their H-Theorems. Epicatalysis operates outside these assumptions. Hence, H-Theorems do not apply to it and the second law is bypassed, not broken. There is no contradiction with correctly understood established physics. Other phenomena also based on heterogeneous statistics include non-maxwellian adsorption, the field-induced thermoelectric effect and the reciprocal Hall effect. Elementary particles have well known distributions such as Fermi-Dirac and Bose Einstein, but composite particles such as those involved in chemical reactions, have complex intractable statistics not necessarily maxwellian and best determined by quantum modeling methods. A step by step solution for finding the quantum thermodynamic properties of a quantum composite gas, that avoids the computational requirement of modeling a large number of composite particles includes 1) quantum molecular modeling of a few particles, 2) determining their available microstates, 3) producing their partition function, 4) generating their statistics, and 5) producing the epicatalytic parameter for the generalized law of mass action. 展开更多
关键词 Adsorption BOLTZMANN ENTROPY Epicatalysis H-THEOREM Heterogeneous STATISTICS law of mass Action Non-Maxwellian Quantum THERMODYNAMICS Second law
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New Planck’s Law
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作者 Dan Liu Bill 《Journal of Applied Mathematics and Physics》 2023年第3期721-736,共16页
In quantum mechanics, there are two very famous formulas. One is the energy formula of the bose particle, called Planck’s law. The other is the wavelength formula, which is called the de Broy wavelength. According to... In quantum mechanics, there are two very famous formulas. One is the energy formula of the bose particle, called Planck’s law. The other is the wavelength formula, which is called the de Broy wavelength. According to Einstein’s mass-energy equation, we have studied Planck’s law and De Bloy’s wavelength, and generalized it to the De Bloy’s wavelength formula from low speed to light speed. Then, on this basis, the smallest particle is defined as mass quantum. The new wavelength formula is obtained from the mass quantum and converted into the frequency formula. The generalized Planck’s law is obtained. 展开更多
关键词 Quantum Mechanics Planck’s law Einstein’s mass and Energy Equation Debroy Wavelength Generalized Planck’s law
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诱导下岩体裂隙扩展规律研究存在问题及对策
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作者 何荣兴 张智源 +1 位作者 张星宇 章雅雯 《中国矿业》 北大核心 2024年第10期168-176,共9页
大部分地下工程的失稳都是岩体在长期的“诱导”作用下裂隙扩展、贯通从而改变岩体本身的强度特征导致的结果,因此,研究岩体中裂隙的扩展演化规律,对进一步揭示岩体工程失稳、岩石破坏现象的机理和本质具有重要意义。本文从物理实验、... 大部分地下工程的失稳都是岩体在长期的“诱导”作用下裂隙扩展、贯通从而改变岩体本身的强度特征导致的结果,因此,研究岩体中裂隙的扩展演化规律,对进一步揭示岩体工程失稳、岩石破坏现象的机理和本质具有重要意义。本文从物理实验、数值模拟和力学理论三个方面介绍了目前对于裂隙岩体扩展的研究现状,并结合地下工程的演化过程和工程需求分析了目前裂隙扩展研究中存在的问题,提出了更适应工程问题需求的研究思路:以相似材料、3D打印和声发射技术为手段,首先通过小试样压缩实验确定适用于声发射技术监测的相似材料成分及配比范围,然后采用3D打印的方法制作成交叉裂隙的拉、剪实验试件并开展拉、剪蠕变试验,研究裂隙扩展致裂规律,裂隙岩体拉、剪蠕变声发射特征及破坏的前兆特征,分析岩体强度随蠕变时间的变化规律,在此基础上建立裂隙岩体的大型相似材料模型,研究开挖诱导下随裂隙参数、时间等因素的预测模型和岩体冒落触发时间与裂隙参数、开挖空间的关系模型,揭示裂隙岩体冒落演化机制,预测岩体冒落时间和范围,为地下工程长期稳定性和岩体冒落调控提供理论支撑。 展开更多
关键词 裂隙岩体 裂隙扩展 演化规律 3D打印 声发射
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阻燃输送带火灾早期温度变化与烟气成分研究 被引量:1
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作者 段佳磊 梁运涛 +4 位作者 贾宝山 孙勇 王睿德 罗奕杭 崔鑫峰 《矿业科学学报》 CSCD 北大核心 2024年第2期135-143,共9页
为实现带式输送机火灾早期预警,改进滚筒摩擦实验平台并监测阻燃输送带温度。利用质谱(MS)技术,分析钢丝绳芯阻燃输送带在摩擦事故早期的升温规律与烟气成分。研究表明,随着摩擦持续进行,阻燃输送带表面温度分布呈现出较强的对称性,最... 为实现带式输送机火灾早期预警,改进滚筒摩擦实验平台并监测阻燃输送带温度。利用质谱(MS)技术,分析钢丝绳芯阻燃输送带在摩擦事故早期的升温规律与烟气成分。研究表明,随着摩擦持续进行,阻燃输送带表面温度分布呈现出较强的对称性,最高温度区域逐渐向输送带中心集聚,烟气成分随温度变化而改变。根据实验中烟气产物主要成分以及对应的反应过程,将钢丝绳芯阻燃输送带升温过程分为氧化反应阶段(环境温度至100℃)、取代反应阶段(100~160.2℃)和热解反应阶段(160.2℃以后)。当阻燃输送带处于氧化反应阶段时,输送带热容量较小、升温快,产物多为烷基和酯类化合物;取代反应阶段热容量逐渐增加,升温放缓,产物多为硝基、醚类、羧酸类化合物;热解反应阶段输送带内部热容量基本稳定,升温速率最小,在160.2℃时在烟气成分中首次检测到含氯化合物。 展开更多
关键词 阻燃输送带 滚筒摩擦实验 质谱分析 升温规律 烟气成分
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地铁列车地板铝型材结构参数的轻量化隔声特性影响研究
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作者 李拥军 林维仁 《城市轨道交通研究》 北大核心 2024年第5期96-101,共6页
[目的]轻量化和低噪声是当前轨道交通的发展趋势,实现地铁列车地板型材结构的轻量化低噪声设计对提高乘车舒适性具有重要意义。[方法]基于FE-SEA(有限元-统计能量分析)混合法建立地铁列车地板铝型材结构隔声特性预测模型,将仿真与测试... [目的]轻量化和低噪声是当前轨道交通的发展趋势,实现地铁列车地板型材结构的轻量化低噪声设计对提高乘车舒适性具有重要意义。[方法]基于FE-SEA(有限元-统计能量分析)混合法建立地铁列车地板铝型材结构隔声特性预测模型,将仿真与测试结果进行对比验证模型有效性,分析地板铝型材结构的筋板角度、筋板厚度、上下板厚度4个参数对其隔声特性的影响,并以质量定律的轻量化原则为判定标准对4个结构参数进行选择,确定优化结构,最终实现地板铝型材结构的轻量化声学优化。[结果及结论]结果表明,在所列举的铝型材结构参数优化结构中,选择筋板角度为47°、筋板厚度为2.0 mm、上板厚度为2.7 mm、下板厚度为2.7 mm时,单位面积结构质量减小1.18 kg/m^(2),整节车厢地板质量可减小约70.8 kg,而计权隔声量仅减小0.3 dB,其轻量化声学优化效果更好。可为地铁列车地板铝型材结构的轻量化降噪优化设计提供参考。 展开更多
关键词 地铁列车 地板型材结构 FE-SEA 轻量化 质量定律 隔声特性
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束状孔与当量大孔爆破应力波在节理岩体中的衰减规律 被引量:1
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作者 熊常然 陈何 《矿冶》 CAS 2024年第1期1-8,共8页
束状孔当量球形药包爆破技术是基于大直径深孔采矿法的新型爆破技术,与单孔爆破技术相比,其炸药能量利用率更高。为了探究节理岩体中束状孔与当量大孔爆破应力波衰减规律的不同,开展束状孔与当量大孔爆破模型试验研究。试验采用混凝土... 束状孔当量球形药包爆破技术是基于大直径深孔采矿法的新型爆破技术,与单孔爆破技术相比,其炸药能量利用率更高。为了探究节理岩体中束状孔与当量大孔爆破应力波衰减规律的不同,开展束状孔与当量大孔爆破模型试验研究。试验采用混凝土制作相似模型并用无缝钢管将炮孔包围以忽略爆生气体的作用,同时考虑不同节理厚度的影响,得到了爆炸应力波峰值速度与节理厚度的关系,并将两种布孔方式在相同节理条件下进行对比分析。结果表明:两种布孔方式的爆炸应力波峰值速度均随着节理厚度的增加而逐渐降低,在相同节理厚度条件下,束状孔爆破的应力波衰减相对更小。 展开更多
关键词 束状孔 当量大孔 节理岩体 应力波 衰减规律 模型试验
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基于HSS技术的深基坑土体形变规律分析研究
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作者 罗海 刘奉祥 +3 位作者 杨鹏 罗晓生 简廷新 宋念铎 《工程建设与设计》 2024年第19期32-35,共4页
针对深基坑土体形变的问题,提出了一种结合有限元软件和小应变土体硬化模型的数值模型,解决了深基坑工程中土体变形问题,结果实现了深基坑土体形变规律的分析。数值模型研究结果表明:深基坑开挖深度越大,土体水平位移和地表沉降便越大。
关键词 HSS 深基坑 有限元 土体 形变规律
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超高效液相色谱-四极杆静电场轨道阱高分辨质谱法测定米炒人参炮制前后皂苷成分及其裂解规律的研究
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作者 王艺霏 陈晶 +3 位作者 马启风 张淼 罗健顺 高红梅 《食品安全质量检测学报》 CAS 2024年第8期235-245,共11页
目的建立超高效液相色谱-四极杆静电场轨道阱高分辨质谱法(ultra performance liquid chromatography-quadrupole-orbitrap-mass spectrometry,UPLC-Q-Orbitrap-MS)检测米炒人参炮制前后皂苷成分的方法,并研究其裂解规律。方法采用Supel... 目的建立超高效液相色谱-四极杆静电场轨道阱高分辨质谱法(ultra performance liquid chromatography-quadrupole-orbitrap-mass spectrometry,UPLC-Q-Orbitrap-MS)检测米炒人参炮制前后皂苷成分的方法,并研究其裂解规律。方法采用Supelco C18色谱柱,以乙腈-0.1%甲酸水溶液梯度洗脱,应用电喷雾离子源,负离子全扫描模式采集一、二级质谱数据,扫描范围为150~2000 m/z。结合质谱数据库及相关文献信息,运用X Calibur2.2软件对米炒人参中皂苷类成分进行鉴定。以6种人参皂苷Re、Rg_(1)、Rb_(1)、Rc、Rb_(2)、Rb_(3)进行模拟炮制,确定皂苷类成分裂解产物,明确皂苷成分的裂解规律。结果从人参中检测出14个成分,鉴定出13种人参皂苷成分;米炒人参中检测出23个成分,鉴定出20种人参皂苷成分。通过比较人参米炒前后的皂苷类成分,发现米炒人参中存在人参中未检测到的8种稀有人参皂苷20(S)-Rg_(2)、20(S)-Rh_(1)、20(R)-Rh_(1)、F_(2)、20(S)-Rg_(3)、20(R)-Rg_(3)、20(S)-Rs_(3)、20(R)-Rs_(3)。模拟炮制结果表明,人参皂苷Re脱去C-20糖基,转化为稀有人参皂苷20(S)-Rg_(2);人参皂苷Rg_(1)脱去C-20位糖基,转化为稀有人参皂苷20(S)-Rh_(1)、20(R)-Rh_(1);人参皂苷Rb_(1)、Rb_(2)、Rb_(3)、Rc脱去C-20或C-3位糖基,转化为稀有人参皂苷20(S)-Rg_(3)、20(R)-Rg_(3)或F_(2)。结论人参经米炒后,稀有人参皂苷成分增加,产生的稀有皂苷为原型皂苷发生苷键裂解而获得,模拟炮制可作为其裂解规律研究的有效方法。 展开更多
关键词 米炒人参 超高效液相色谱-四极杆静电场轨道阱高分辨质谱法 人参皂苷 模拟炮制 裂解规律
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α-萘酚型和β-萘酚型偶氮染料在四极杆/静电场轨道阱高分辨质谱的裂解规律分析
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作者 林子豪 曾巧辉 +2 位作者 周庆琼 古敏 戚平 《广州化工》 CAS 2024年第20期75-77,共3页
采用四极杆/静电场轨道阱高分辨质谱仪直接采集碎裂片段的精确质荷比(m/z),通过元素模拟得到各主要碎片的元素组成并进行比对,研究了α-萘酚型和β-萘酚型偶氮染料的质谱裂解规律。结果表明:两种染料均存在偶氮式和腙式两种形态。在腙... 采用四极杆/静电场轨道阱高分辨质谱仪直接采集碎裂片段的精确质荷比(m/z),通过元素模拟得到各主要碎片的元素组成并进行比对,研究了α-萘酚型和β-萘酚型偶氮染料的质谱裂解规律。结果表明:两种染料均存在偶氮式和腙式两种形态。在腙式形态时,断裂位点均发生在氮氮键。在偶氮式形态时,β-萘酚型更容易丢失萘酚上的羟基,而α-萘酚型则在偶氮键和萘酚之间发生断裂。总的来说,β-萘酚型更倾向于腙式的裂解方式,而α-萘酚型更倾向于偶氮式的裂解方式。 展开更多
关键词 偶氮染料 α-萘酚型 β-萘酚型 四极杆/静电场轨道阱高分辨质谱 质谱裂解规律
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基于FLUENT的综掘工作面粉尘质量浓度变化规律模拟
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作者 许金波 《晋控科学技术》 2024年第3期35-37,共3页
我国煤矿粉尘危害严重,综掘工作面是重要产尘地点。通过应用fluent对辛安煤业有限公司1402综掘工作面粉尘进行数值模拟,得出了该工作面粉尘的运移规律。研究显示,综掘工作面的粉尘质量浓度最大,综掘机附近粉尘质量浓度不稳定,掘进机以... 我国煤矿粉尘危害严重,综掘工作面是重要产尘地点。通过应用fluent对辛安煤业有限公司1402综掘工作面粉尘进行数值模拟,得出了该工作面粉尘的运移规律。研究显示,综掘工作面的粉尘质量浓度最大,综掘机附近粉尘质量浓度不稳定,掘进机以后粉尘质量浓度随离工作面距离的增加而减小。提出了在掘进机附近设喷雾降尘的技术措施。 展开更多
关键词 综掘工作面 粉尘质量浓度 运移规律 喷雾降尘
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中国式现代化背景下旅游基础理论创新与创建
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作者 张凌云 《旅游导刊》 2024年第4期1-8,共8页
文章简述了中西方不同发展阶段下的大众旅游和国民旅游特征,以及旅游在非惯常环境下的消费行为和现象,并以萨伊定律、行为经济学中的前景理论和心理账户予以解释,据此得出5个推论和9个趋势预测。
关键词 大众旅游 国民旅游 非惯常环境 萨伊定律 硅基生命 生成式人工智能
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优秀农村党支部书记队伍培养教育规律探析——以河南省濮阳县为例
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作者 赵茜茜 王琳瑛 《智慧农业导刊》 2024年第7期98-101,共4页
党的二十大报告强调提升社会治理效能,关键在于健全共建共治共享的社会治理制度。要实现基层治理有效,需要一支精明能干的人才队伍做支撑,优秀农村党支部书记队伍无疑是多元治理主体中的重心。农村党支部书记作为农村基层党组织的主心骨... 党的二十大报告强调提升社会治理效能,关键在于健全共建共治共享的社会治理制度。要实现基层治理有效,需要一支精明能干的人才队伍做支撑,优秀农村党支部书记队伍无疑是多元治理主体中的重心。农村党支部书记作为农村基层党组织的主心骨,是实施乡村振兴战略的领头雁,更是治理有效的生力军。该文以濮阳县为例,探析新时代、新形势下,农村党支部书记培养教育的发展现状、存在的问题及发展策略,通过培养教育打造一支具有辐射带动能力的先进群体,为推动乡村治理体系和治理能力现代化提供地方经验。 展开更多
关键词 农村党支部书记 人才队伍 规律 精准培训 服务群众
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大体积混凝土降温速率动态限值的确定方法
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作者 马宁 罗金炽 +1 位作者 刘利锋 刘继辉 《城市建筑》 2024年第6期227-229,共3页
混凝土作为当代使用价值较高的建筑材料,被广泛应用于各种建筑中。但是,大体积混凝土存在水化热和收缩等影响质量的问题,此过程产生的应力会让大体积混凝土构件在早期出现开裂,影响混凝土的抗裂性能和抗渗性能。本文研究混凝土的开裂机... 混凝土作为当代使用价值较高的建筑材料,被广泛应用于各种建筑中。但是,大体积混凝土存在水化热和收缩等影响质量的问题,此过程产生的应力会让大体积混凝土构件在早期出现开裂,影响混凝土的抗裂性能和抗渗性能。本文研究混凝土的开裂机理和开裂规律,通过对混凝土底板进行绝热试验,采集数据并绘制混凝土的绝热温度提升曲线,找到水化热的反应持续时间,并对不同的反应时间采取相应的温控措施,通过理论学习和实际数据的对比,找出大体积混凝土的降温速率动态限值。 展开更多
关键词 大体积混凝土 开裂机理 开裂规律 温控措施
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Calculating models of mass action concentrations for NaBr(aq), LiNO_3(aq), HNO_3(aq), and KF(aq) binary solutions 被引量:8
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作者 Hanjie Guo Weijie Zhao Xuemin Yang 《Journal of University of Science and Technology Beijing》 CSCD 2007年第3期204-211,共8页
The calculating models of mass action concentrations for electrolyte aqueous solutions NaBr-H2O, LiNO3-H2O, HNO3-H2O, and KF-H2O have been developed at 298.15 K and their molalities ranging from 0.1 mol/kg to saturati... The calculating models of mass action concentrations for electrolyte aqueous solutions NaBr-H2O, LiNO3-H2O, HNO3-H2O, and KF-H2O have been developed at 298.15 K and their molalities ranging from 0.1 mol/kg to saturation according to the ion and molecule coexistence theory as well as mass action law. The calculated mass action concentration is based on pure species as the standard state and the mole fraction as the concentration unit, and the reported activities are usually based on infinite dilution as the standard state and molality as the concentration unit. Hence, the calculated mass action concentration must be transformed to the same standard state and concentration unit. The transformation coefficients between calculated mass action concentrations and reported activities of the same component fluctuate in a very narrow range. Thus, the transformed mass action concentrations not only agree well with reported activities, but also strictly obey mass action law. The calculated results show that the new developed models can embody the intrinsic structure of investigated four electrolyte aqueous solutions. The results also indicate that mass action law has its widespread applicability to electrolyte binary aqueous solutions. 展开更多
关键词 mass action concentration ACTIVITY mass action law electrolyte aqueous solution
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