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Case Study:The research of the paradox between Strategic Alignment and IT Business Value
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作者 朱书阳 《科技信息》 2009年第4期112-113,共2页
This report analyses the case--Investigating the Relationship between Strategic Alignment and IT Business Value:The Dis-covery of a Paradox,and interpret the paradox--step by step.First,the report introduces the strat... This report analyses the case--Investigating the Relationship between Strategic Alignment and IT Business Value:The Dis-covery of a Paradox,and interpret the paradox--step by step.First,the report introduces the strategic alignment and IT business value.Then,the relationship between them and the paradox is discussed.At last,conclusion and suggestion are made. 展开更多
关键词 商务英语 学习方法 IT行业 教学方法
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Resolution of Grandi’s Paradox as Extended to Complex Valued Functions 被引量:1
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作者 Serdar Beji 《Advances in Pure Mathematics》 2020年第8期447-463,共17页
Grandi’s paradox, which was posed for a real function of the form <span style="white-space:nowrap;">1/(1+ <em>x</em>)</span>, has been resolved and extended to complex valued functio... Grandi’s paradox, which was posed for a real function of the form <span style="white-space:nowrap;">1/(1+ <em>x</em>)</span>, has been resolved and extended to complex valued functions. Resolution of this approximately three-hundred-year-old paradox is accomplished by the use of a consistent truncation approach that can be applied to all the series expansions of Grandi-type functions. Furthermore, a new technique for improving the convergence characteristics of power series with alternating signs is introduced. The technique works by successively averaging a series at different orders of truncation. A sound theoretical justification of the successive averaging method is demonstrated by two different series expansions of the function <span style="white-space:nowrap;">1/(1+ e<sup><em>x</em> </sup>)</span> . Grandi-type complex valued functions such as <span style="white-space:nowrap;">1/(<em>i</em> + <em>x</em>)</span> are expressed as consistently-truncated and convergence-improved forms and Fagnano’s formula is established from the series expansions of these functions. A Grandi-type general complex valued function <img src="Edit_f4efd7cd-6853-4ca4-b4dc-00f0b798c277.png" width="80" height="24" alt="" /> is introduced and expanded to a consistently truncated and successively averaged series. Finally, an unorthodox application of the successive averaging method to polynomials is presented. 展开更多
关键词 Grandi’s paradox Real and Complex valued Functions Series Expansions
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ON THE PARADOX AND HYPOCRISY OF IDEAL AMERICAN VALUES
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作者 Wang Jingyan Lv He 《科技信息》 2006年第09X期109-109,205,共2页
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Analysis of Japan and World Records in the 100 m Dash Using Extreme Value Theory 被引量:2
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作者 Fumio Maruyama 《Journal of Applied Mathematics and Physics》 2021年第7期1442-1451,共10页
Extreme value theory provides methods to analyze the most extreme parts of data. We predicted the ultimate 100 m dash records for men and women for specific periods using the generalized extreme value (GEV) distributi... Extreme value theory provides methods to analyze the most extreme parts of data. We predicted the ultimate 100 m dash records for men and women for specific periods using the generalized extreme value (GEV) distribution. The various diagnostic plots, which assessed the accuracy of the GEV model, were well fitted to the 100 m records in the world and Japan, validating the model. The men’s world record had a shape parameter of -0.250 with a 95% confidence interval of [-0.391, -0.109]. The 100 m record had a finite limit and a calculated upper limit was 9.46 s. The return level estimates for the men’s world record were 9.74, 9.62, and 9.58 s with a 95% confidence interval of [9.69, 9.79], [9.54, 9.69], and [9.48, 9.67] for 10-, 100- and 350-year return periods, respectively. In one year, the probability of occurrence for a new world record of men, 9.58 s (Usain Bolt), was 1/350, while that for women, 10.49 s (Florence Griffith-Joyner), was about 1/100, confirming it was more difficult for men to break records than women. 展开更多
关键词 ATHLETICS 100 m Running Extreme value Theory GEV model
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Novel applications of bipolar single-valued neutrosophic competition graphs 被引量:2
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作者 Muhammad Akram Maryam Nasir K.P.Shum 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2018年第4期436-467,共32页
Bipolar single-valued neutrosophic models are the generalization of bipolar fuzzy models. We first introduce the concept of bipolar single-valued neutrosophic competition graphs. We then, discuss some important propos... Bipolar single-valued neutrosophic models are the generalization of bipolar fuzzy models. We first introduce the concept of bipolar single-valued neutrosophic competition graphs. We then, discuss some important propositions related to bipolar single-valued neutrosophic competition graphs. We define bipolar single-valued neutrosophic economic competition graphs and m-step bipolar single-valued neutrosophic economic competition graphs. Further, we describe applications of bipolar single-valued neutrosophic competition graphs in organizational designations and brands competition. Finally, we present our improved methods by algorithms. 展开更多
关键词 BIPOLAR single-valued neutrosophic DIGRAPHS m-step BIPOLAR single-valued neutrosophic economic COmPETITION GRAPHS algorithm
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Existence of Positive Solution for Superlinear Semipositone Singular Second-order m-point Boundary Value Problem 被引量:4
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作者 ZHANG Xing-qiu 《Chinese Quarterly Journal of Mathematics》 CSCD 2010年第1期151-158,共8页
由使用固定的点定理,积极答案的存在为 superlinear semipositone 被认为单个m点边界价值问题--(n)(x)= f ( x ,(x))+ g (x), 0 < x < 1 ,( 0 ) =0 ,( 1 )= m-2i=1 ai (i),吗在哪儿(L)(x)=( p (x)“(x))”+ q (x)(x)和 i ... 由使用固定的点定理,积极答案的存在为 superlinear semipositone 被认为单个m点边界价值问题--(n)(x)= f ( x ,(x))+ g (x), 0 < x < 1 ,( 0 ) =0 ,( 1 )= m-2i=1 ai (i),吗在哪儿(L)(x)=( p (x)“(x))”+ q (x)(x)和 i ( 0 , 1 )与 0 < 1 < 2 << m-2 < 1 , ai R+, f C [( 0,1 )???嘠???畭瑬杩楲???????牥業整?? 展开更多
关键词 SEmIPOSITONE SUPERLINEAR 单个 m 点边界价值 固定的点定理 积极答案
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一类带p-Laplace算子的非线性二阶m点共振边值问题解的存在性
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作者 刘美玉 马锦然 裴明鹤 《北华大学学报(自然科学版)》 CAS 2024年第1期1-7,共7页
基于拓扑横截方法连同障碍带技巧,得到一类带p-Laplace算子的非线性二阶m点共振边值问题解的新的存在性结果,并给出应用举例。
关键词 P-LAPLACE算子 m点共振边值问题 存在性 拓扑横截方法 障碍带技巧
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Network Traffic Based on GARCH-M Model and Extreme Value Theory 被引量:1
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作者 沈菲 王洪礼 +1 位作者 史道济 李栋 《Transactions of Tianjin University》 EI CAS 2005年第5期386-390,共5页
GARCH-M ( generalized autoregressive conditional heteroskedasticity in the mean) model is used to analyse the volatility clustering phenomenon in mobile communication network traffic. Normal distribution, t distributi... GARCH-M ( generalized autoregressive conditional heteroskedasticity in the mean) model is used to analyse the volatility clustering phenomenon in mobile communication network traffic. Normal distribution, t distribution and generalized Pareto distribution assumptions are adopted re- spectively to simulate the random component in the model. The demonstration of the quantile of network traffic series indicates that common GARCH-M model can partially deal with the "fat tail" problem. However, the "fat tail" characteristic of the random component directly affects the accura- cy of the calculation. Even t distribution is based on the assumption for all the data. On the other hand, extreme value theory, which only concentrates on the tail distribution, can provide more ac- curate result for high quantiles. The best result is obtained based on the generalized Pareto distribu- tion assumption for the random component in the GARCH-M model. 展开更多
关键词 网络通信 GARCH-m模型 极值理论 PARETO分布 QOS 服务质量
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Absorption Ability of Different M/G Values of Alginate Fiber 被引量:1
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作者 郭肖青 朱平 《Journal of Donghua University(English Edition)》 EI CAS 2007年第3期431-434,438,共5页
不同的钠 alginate 的 M/G 价值借助于 1H-NMR 被学习。alginate 纤维经由湿旋转的技术被准备。M/G, sodium-alginate 的集中,凝结洗澡的集中和 alginate 纤维的吸收性的能力上的凝结的时间的效果被讨论。结果证明不同物质的吸收性的... 不同的钠 alginate 的 M/G 价值借助于 1H-NMR 被学习。alginate 纤维经由湿旋转的技术被准备。M/G, sodium-alginate 的集中,凝结洗澡的集中和 alginate 纤维的吸收性的能力上的凝结的时间的效果被讨论。结果证明不同物质的吸收性的能力在如此的顺序变化:生理盐 > 血 > 自来水 > 提取的水。alginate 纤维的吸收性的能力随 M/G 价值的增加和 sodium-aiginate 的集中增加。逐渐地增加凝结洗澡的 conceatration,它增加直到集中直到 5% 。然而,它与持续减少使时间凝结。 展开更多
关键词 纤维技术 纺织品 纺织技术 原料
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Ultimate Olympics Records in Athletics Using Extreme Value Theory
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作者 Fumio Maruyama 《Open Journal of Applied Sciences》 2022年第4期541-554,共14页
Extreme value theory provides methods to analyze the most extreme parts of data. We used the generalized extreme value (GEV) distribution to predict the ultimate 100 m, 200 m, 400 m, 4 × 100 m relay, and long jum... Extreme value theory provides methods to analyze the most extreme parts of data. We used the generalized extreme value (GEV) distribution to predict the ultimate 100 m, 200 m, 400 m, 4 × 100 m relay, and long jump records of male gold medalists at the Olympics. The diagnostic plots, which assessed the accuracy of the GEV model, were fitted to all event records, validating the model. The 100 m, 200 m, 400 m, 4 × 100 m, and long jump records had negative shape parameters and calculated upper limits of 9.58 s, 19.18 s, 42.97 s, 36.71 s, and 9.03 m, respectively. The calculated upper limit in the 100 m (9.58 s) was equal to the record of Usain Bolt (August 16, 2009). The 100 m and 200 m world records were close to the calculated upper limits, and achieving the calculated limit was difficult. The 400 m and 4 × 100 m relay world records were almost equal to the calculated upper limits and the 500-year return level estimate, and slight improvement was possible in both. At the Tokyo Olympics in August 2021, in the 100 m, 200 m, and 4 × 100 m, in one year the probability of occurrence for a record was about 1/30. In the 400 m and long jump, it was about 1/20. In the 100 m, 200 m, and 4 × 100 m relay, more difficult records show that a fierce battle has taken place. 展开更多
关键词 ATHLETICS 100 m 200 m 400 m 4 × 100 m Relay Long Jump Extreme value Theory GEV model
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一类n阶m点边值问题正解的存在唯一性
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作者 胡华书 古传运 《吉首大学学报(自然科学版)》 CAS 2024年第1期1-6,共6页
运用混合单调算子及不动点定理,研究了一类n阶m点边值问题正解的存在唯一性,并构造了一个迭代序列去逼近这个正解.
关键词 m点边值问题 混合单调算子 不动点定理 存在唯一性
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Positive Solutions for a Class of Second-order m-point Boundary Value Problems
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作者 YAN Jie-sheng YANG Liu LIU Xi-ping 《Chinese Quarterly Journal of Mathematics》 CSCD 北大核心 2006年第3期448-454,共7页
用在锥的一条固定的点定理,纸考虑秒顺序 m 点的一个班的积极解决方案的存在边界价值问题。足够的条件将保证两倍积极答案的存在被获得。这个问题的联系格林功能也被给。
关键词 二阶m点边界值问题 固定点 正解
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Spectral Characteristics of the Best Affine Approach of Multi-Output m-Valued Logical Functions
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作者 ZHAO Yaqun YING Dinghai FENG Dengguo 《Wuhan University Journal of Natural Sciences》 CAS 2007年第1期185-188,共4页
This paper discusses the best affine approach (BAA) of multi-output m-valued logical functions. First, it gives the spectra of rate of accordance between multi-output m-valued logical func- tions and their affine func... This paper discusses the best affine approach (BAA) of multi-output m-valued logical functions. First, it gives the spectra of rate of accordance between multi-output m-valued logical func- tions and their affine functions, then analyzes the BAA of multi-output m-valued logical functions and finally gives the spec- tral characteristics of BAA of multi-output m-valued logical func- tions. 展开更多
关键词 通信保密技术 逻辑函数 仿射函数 光谱分析
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Existence of Solutions for Generalized Sturm-Liouville m-point Boundary Value Problems in Banach Spaces
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作者 YANG Jing-bao WEI Zhong-li 《Chinese Quarterly Journal of Mathematics》 CSCD 2011年第2期265-269,共5页
由使用 strict-set-contraction 的定点定理,这份报纸在 Banach 空格建立概括 Sturm-Liouville m 点边界价值问题的一个答案或一个积极答案的存在。
关键词 Banach 空格 strict-set-contraction 的定点定理 STURm-LIOUVILLE n-pointt 边界价值问题 积极答案
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A KIND OF FUZZY LINEAR PROGRAMMING PROBLEMS BASED ON INTERVAL-VALUED FUZZY SETS
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作者 Xu JiupingDept. of Appl.Math.,Sichuan Union University,Chengdu 610065. 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2000年第1期65-72,共8页
The objective of this paper is to deal with a kind of fuzzy linear programming problem based on interval\|valued fuzzy sets (IVFLP) through the medium of procedure that turns IVFLP into parametric linear programming v... The objective of this paper is to deal with a kind of fuzzy linear programming problem based on interval\|valued fuzzy sets (IVFLP) through the medium of procedure that turns IVFLP into parametric linear programming via the mathematical programming.Some useful results for the benefit of solving IVFLP are expounded and proved,developed and discussed.Furthermore,that the proposed techniques in this paper allow the decision\|maker to assign a different degree of importance can provide a useful way to efficiently help the decision\|maker make their decisions. 展开更多
关键词 模糊数学 线性方程 时间间隔估计 线性参数
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MSCT、MRI对脊柱侧弯矫正手术的指导价值 被引量:1
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作者 赵志蓉 陈焕雄 《暨南大学学报(自然科学与医学版)》 CAS 北大核心 2023年第3期282-288,共7页
目的:探究多层螺旋CT(MSCT)、磁共振成像(MRI)对脊柱侧弯的诊断价值及两种诊断技术对脊柱侧弯矫正手术的指导价值。方法:选取63例脊柱侧弯患者作为研究对象,所有患者均接受MSCT、X线平片及MRI检查,比较MSCT与X线平片检查对脊柱侧弯的检... 目的:探究多层螺旋CT(MSCT)、磁共振成像(MRI)对脊柱侧弯的诊断价值及两种诊断技术对脊柱侧弯矫正手术的指导价值。方法:选取63例脊柱侧弯患者作为研究对象,所有患者均接受MSCT、X线平片及MRI检查,比较MSCT与X线平片检查对脊柱侧弯的检出情况,分析MSCT、MRI对患者椎体的显示情况;另收集经MSCT指导(MSCT组32例)及经MRI指导(MRI组28例)进行矫正手术患者的临床资料,比较两组术后的Cobb角、后凸角及矫正率的差异。结果:63例患者中经X线平片检出脊柱侧弯78处,经MSCT检出脊柱侧弯131处,X线平片、MSCT对脊柱侧弯检出率的差异有统计学意义(P<0.05);MSCT对顶椎(100.00%vs 17.46%)、脊柱全貌(100.00%vs 36.51%)的显现率显著高于MRI(P<0.05),而对脊髓异常的显现率(36.51%vs 77.78%)显著低于MRI(P<0.05)。MSCT组术后的Cobb角及后凸角小于MRI组(P<0.05),术后矫正率高于MRI组(P<0.05)。结论:在脊柱侧弯检查与诊断中,MSCT对异常椎体的检出能力明显优于传统X线平片,MRI则侧重于对椎管内病变的精准显示,MSCT对病椎位置关系显露更佳,更有利于指导脊柱侧弯矫正手术。 展开更多
关键词 脊柱侧弯 多层螺旋CT(mSCT) 磁共振成像(mRI) X线平片 诊断价值
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碎石土地基中矩形桩水平承载特性及m值分析 被引量:1
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作者 李文帅 龚维明 +1 位作者 戴国亮 许殷萌 《东南大学学报(自然科学版)》 EI CAS CSCD 北大核心 2023年第5期812-819,共8页
为探究碎石土地基中桩身抗弯刚度对桩基水平承载特性及地基水平抗力系数的比例系数m值的影响,以桩身等截面积为基准,展开不同抗弯刚度矩形桩水平荷载作用下承载特性研究,并采用m法对其进行计算分析.试验结果表明:桩身位移衰减特征表现... 为探究碎石土地基中桩身抗弯刚度对桩基水平承载特性及地基水平抗力系数的比例系数m值的影响,以桩身等截面积为基准,展开不同抗弯刚度矩形桩水平荷载作用下承载特性研究,并采用m法对其进行计算分析.试验结果表明:桩身位移衰减特征表现为刚性桩时,荷载传递深度是受载边长的8.3倍,表现为柔性桩时,荷载传递深度是受载边长的1.5倍;碎石土地基的m值可在32.9~58.7 MN/m^(4)范围内取值.桩身位移及弯矩的衰减规律表明,桩身抗弯刚度影响桩土荷载传递机理,刚性桩的荷载传递深度较柔性桩大,空间受力更为显著;通过m法计算得到的位移与实测位移吻合,表明m法可作为矩形桩位移计算的预测方法. 展开更多
关键词 矩形桩 水平受荷 碎石土 地基水平抗力系数的比例系数m 原位试验
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深厚软土区桥梁基桩水平静载试验与m取值分析
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作者 仲召银 冷伍明 +4 位作者 杨奇 吴亚飞 邓煜晨 徐方 阮波 《铁道科学与工程学报》 EI CAS CSCD 北大核心 2023年第9期3350-3361,共12页
我国沿海地区广泛分布深厚软土,其软土地基水平抗力系数的比例系数m值的合理取值直接影响桩基设计的经济性和桥梁等上部结构的安全性。为了解决软土m值取值的合理性问题,采用单向多循环加载法和慢速维持荷载法分别对深厚软土地区4根单... 我国沿海地区广泛分布深厚软土,其软土地基水平抗力系数的比例系数m值的合理取值直接影响桩基设计的经济性和桥梁等上部结构的安全性。为了解决软土m值取值的合理性问题,采用单向多循环加载法和慢速维持荷载法分别对深厚软土地区4根单桩进行水平静荷载试验,开展单桩的水平承载变形特性和m值取值研究。研究结果表明:相比于单向多循环加载法,慢速维持荷载法呈现的弹塑性分界点(拐点)更明显,对应的水平位移大,获得的淤泥质黏土m值小。桩在地面处位移超过6.5 mm(慢速维持荷载法)和5 mm(单向多循环加载法)时,桩侧淤泥质黏土进入弹塑性阶段。单桩水平临界荷载和极限水平承载力分别为189 kN和253 kN。淤泥质黏土的m值随水平位移的增大而呈幂函数衰减。在同一荷载等级下,m值随循环次数增加呈线性衰减,相比第1次循环,第5次循环m值的折减系数均值为0.84,荷载条件对循环折减系数影响有限。试验获得淤泥质黏土层m值的标准值为6226 kN/m4,大于铁路和公路规范中m值的上限值,为下限值的2.08倍。研究提出了宁波淤泥质黏土及与其物理状态和力学指标相近的软土m取值建议。研究成果可为m的合理取值和深厚软土地区桩基的优化设计与安全评估提供重要参考和依据。 展开更多
关键词 深厚软土 灌注桩 水平承载力试验 m
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Absolute Reference Values of the Real Gas
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作者 Albrecht Elsner 《Engineering(科研)》 2018年第5期270-290,共21页
With his publication in 1873 [1] J. W. Gibbs formulated the thermodynamic theory. It describes almost all macroscopically observed properties of matter and could also describe all phenomena if only the free energy U -... With his publication in 1873 [1] J. W. Gibbs formulated the thermodynamic theory. It describes almost all macroscopically observed properties of matter and could also describe all phenomena if only the free energy U - ST were explicitly known numerically. The thermodynamic uniqueness of the free energy obviously depends on that of the internal energy U and the entropy S, which in both cases Gibbs had been unable to specify. This uncertainty, lasting more than 100 years, was not eliminated either by Nernst’s hypothesis S = 0 at T = 0. This was not achieved till the advent of additional proof of the thermodynamic relation U = 0 at T = Tc. It is noteworthy that from purely thermodynamic consideration of intensive and extensive quantities it is possible to derive both Gibbs’s formulations of entropy and internal energy and their now established absolute reference values. Further proofs of the vanishing value of the internal energy at the critical point emanate from the fact that in the case of the saturated fluid both the internal energy and its phase-specific components can be represented as functions of the evaporation energy. Combining the differential expressions in Gibbs’s equation for the internal energy, d(μ/T)/d(1/T) and d(p/T)/d(1/T), to a new variable d(μ/T)/d(p/T) leads to a volume equation with the lower limit vc as boundary condition. By means of a variable transformation one obtains a functional equation for the sum of two dimensionless variables, each of them being related to an identical form of local interaction forces between fluid particles, but the different particle densities in the vapor and liquid spaces produce different interaction effects. The same functional equation also appears in another context relating to the internal energy. The solution of this equation can be given in analytic form and has been published [2] [3]. Using the solutions emerging in different sets of problems, one can calculate absolutely the internal energy as a function of temperature-dependent, phase-specific volumes and vapor pressure. 展开更多
关键词 ENTROPY REFERENCE value S (m V 0) = 0 INTERNAL Energy REFERENCE value U (m Tc) = 0 ...
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Phenotype Tendencies of Dam Populations in Genetic Evaluation of Pigs in Slovakia over 2000-2009
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作者 B. Bobcek O. Bucko A. Trakovicka J. Mrazova L. Gajdosova 《Journal of Agricultural Science and Technology(A)》 2011年第6期902-907,共6页
关键词 斯洛伐克 遗传评估 人口 表型 大坝 最佳线性无偏预测 动物模型
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