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仲钨酸铵对Ag-Sn合金粉末的氧化作用
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作者 温金海 林炳 《电工材料》 CAS 2002年第4期14-18,24,共6页
本文采用氧化增重法 (TGA) ,研究了添加少量仲钨酸铵 (APT)对 Ag- Sn合金粉末的氧化作用。用 X射线衍射仪、电子探针和金相观察分析了粉末氧化前后相的转变、氧化物的分布、形貌。结果表明 ,Ag- Sn+ APT混合粉末的氧化规律服从 Wagner理... 本文采用氧化增重法 (TGA) ,研究了添加少量仲钨酸铵 (APT)对 Ag- Sn合金粉末的氧化作用。用 X射线衍射仪、电子探针和金相观察分析了粉末氧化前后相的转变、氧化物的分布、形貌。结果表明 ,Ag- Sn+ APT混合粉末的氧化规律服从 Wagner理论 ;APT的分解产物及形成的新相 Ag2 WO4作为活性氧原子源 ,促进 Sn的氧化 ;添加剂 APT在 0~ 2 .2 6 wt%成分范围内和相同温度、相同氧化时间条件下 ,氧化速率随添加量增加而加快 ;随氧化温度的提高 ,氧化速率加大 ,如在 80 0℃下的氧化速率大于70 展开更多
关键词 仲钨酸铵 氧化作用 Ag-sn合金粉末 绝缘材料
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Bell’s Non-Locality Theorem Can Be Understood in Terms of Classical Thermodynamics 被引量:1
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作者 Tomofumi Miyashita 《Journal of Modern Physics》 2017年第1期87-98,共12页
Bell’s non-locality theorem can be understood in terms of classical thermodynamics, which is already considered to be a complete field. However, inconsistencies in classical thermodynamics have been discovered in the... Bell’s non-locality theorem can be understood in terms of classical thermodynamics, which is already considered to be a complete field. However, inconsistencies in classical thermodynamics have been discovered in the area of solid-oxide fuel cells (SOFCs). The use of samarium-doped ceria electrolytes in SOFCs lowers the open-circuit voltage (OCV) to less than the Nernst voltage. This low OCV has been explained by Wagner’s equation, which is based on chemical equilibrium theory. However, Wagner’s equation is insufficient to explain the low OCV, which should be explained by fluctuation and dissipation theorems. Considering the separation of the Boltzmann distribution and Maxwell’s demon, only carrier species with sufficient energy to overcome the activation energy can contribute to current conduction, as determined by incorporating different constants into the definitions of the chemical and electrical potentials. Then, an energy loss equal to the activation energy will occur because of the interactions between ions and electrons. This energy loss means that an additional thermodynamic law based on an advanced model of Maxwell’s demon is needed. In this report, the zero-point energy can be explained by this additional ther-modynamic law, as can Bell’s non-locality theorem. 展开更多
关键词 wagners Equation FLUCTUATION and DIssIPATION theory BOLTZMANN Distribution Maxwell’s DEMON Additional THERMODYNAMIC Law
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Investigation of Numerical Conditions of Moving Particle Semi‑implicit for Two‑Dimensional Wedge Slamming
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作者 Takahito Iida Yudai Yokoyama 《Journal of Marine Science and Application》 CSCD 2021年第4期585-594,共10页
The sensitivity of moving particle semi-implicit(MPS)simulations to numerical parameters is investigated in this study.Although the verifcation and validation(V&V)are important to ensure accurate numerical results... The sensitivity of moving particle semi-implicit(MPS)simulations to numerical parameters is investigated in this study.Although the verifcation and validation(V&V)are important to ensure accurate numerical results,the MPS has poor perfor-mance in convergences with a time step size.Therefore,users of the MPS need to tune numerical parameters to ft results into benchmarks.However,such tuning parameters are not always valid for other simulations.We propose a practical numerical condition for the MPS simulation of a two-dimensional wedge slamming problem(i.e.,an MPS-slamming condition).The MPS-slamming condition is represented by an MPS-slamming number,which provides the optimum time step size once the MPS-slamming number,slamming velocity,deadrise angle of the wedge,and particle size are decided.The simulation study shows that the MPS results can be characterized by the proposed MPS-slamming condition,and the use of the same MPS-slamming number provides a similar fow. 展开更多
关键词 Wedge slamming Moving particle semi-implicit MPs-slamming condition Numerical condition wagners theory Computational fuid dynamics
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Empirical Relation of the Fine-Structure Constant with the Transference Number Concept
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作者 Tomofumi Miyashita 《Journal of Modern Physics》 2018年第13期2346-2353,共8页
The fine-structure constant of 1/137 is puzzling and has never been fully explained. When the interaction coefficient is 1/137, the transference number should be 136/137. With the transference number concept, we notic... The fine-structure constant of 1/137 is puzzling and has never been fully explained. When the interaction coefficient is 1/137, the transference number should be 136/137. With the transference number concept, we noticed that we must examine the constant of 1/136 instead of 1/137 to discover an empirical relationship in which the fine-structure constant is related to the mass ratio of electrons and quarks. Then, the physical meaning of this empirical relationship is discussed. 展开更多
关键词 wagners Equation FLUCTUATION and DIssIPATION theory BOLTZMANN Distribution Maxwell’s DEMON Additional THERMODYNAMIC Law
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Empirical Equation for the Gravitational Constant with a Reasonable Temperature
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作者 Tomofumi Miyashita 《Journal of Modern Physics》 2020年第8期1180-1192,共13页
Ted Jacobson discovered that gravity was related to thermodynamics. However, the calculated temperature using the Boltzmann area entropy is still not reasonable. We searched and discovered an empirical equation for th... Ted Jacobson discovered that gravity was related to thermodynamics. However, the calculated temperature using the Boltzmann area entropy is still not reasonable. We searched and discovered an empirical equation for the gravitational constant with a reasonable temperature. The calculated value was 3.20 K, which is similar to the temperature of the cosmic microwave background of 2.73 K. Then, we examined Yasuo Katayama’s theory. For this purpose, we introduced the modified Wagner’s equation, which is compatible with Jarzynski equality. Finally, using Ted Jacobson’s theory, we proposed our theory of gravity with the Gibbs volume entropy. 展开更多
关键词 Gravitational Constant wagners Equation Jarzynski Equality Ted Jacobson’s theory
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双重冲击背景下消费者国货品牌购买意愿的影响机制研究--基于S-O-R理论分析模型
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作者 尹梦然 胡青韵 +2 位作者 夏侯龙吉 郭家铭 秦洁 《中国商论》 2022年第20期19-23,共5页
本文基于S-O-R(刺激-机体-反应)模式,探讨中美冲突与新冠疫情对中国消费者国货品牌选择意向的影响,并剖析双重冲击如何通过消费者情感影响,如民族自信心、国货品牌认同感与消费者效能感影响国货品牌的消费者购买意向。结果表明,双重冲... 本文基于S-O-R(刺激-机体-反应)模式,探讨中美冲突与新冠疫情对中国消费者国货品牌选择意向的影响,并剖析双重冲击如何通过消费者情感影响,如民族自信心、国货品牌认同感与消费者效能感影响国货品牌的消费者购买意向。结果表明,双重冲击正向影响消费者情感因素,国货品牌认同感与消费者效能感正面影响消费者国货品牌购买意向,而民族自信心则对消费者国货品牌购买意向不造成影响。国货品牌认同和消费者效能感在中美冲突与消费者国货品牌购买意愿关系间起部分中介作用,在新冠疫情与消费者国货品牌购买意愿之间起完全中介作用,但民族自信在双重冲击与消费者国货品牌购买意愿关系间中介作用不显著。 展开更多
关键词 双重冲击 国货品牌 消费者购买意愿 sOR理论
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外张砰击压力时间分布的模型试验 被引量:3
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作者 陈占阳 任慧龙 孙芳胜 《上海交通大学学报》 EI CAS CSCD 北大核心 2013年第6期904-908,共5页
在拖曳水池对某集装箱船进行了砰击模型试验.在船底砰击的脉冲三角函数形式的基础上结合试验数据重新确认外张砰击持续时间,建立了一种外张砰击压力时间分布的模型.并且基于瓦格纳型冲击理论对该船的外张砰击压力时历进行预报.预报和试... 在拖曳水池对某集装箱船进行了砰击模型试验.在船底砰击的脉冲三角函数形式的基础上结合试验数据重新确认外张砰击持续时间,建立了一种外张砰击压力时间分布的模型.并且基于瓦格纳型冲击理论对该船的外张砰击压力时历进行预报.预报和试验结果的比较表明,两者吻合较好,该方法能适当反映外张砰击的时历特性. 展开更多
关键词 砰击压力 外张砰击 时间分布 模型试验 瓦格纳型冲击理论
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《中国文学史》“孔子删诗”说之教学鉴赏设计
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作者 张华林 宦书亮 《重庆三峡学院学报》 2015年第2期153-156,共4页
袁行霈《中国文学史》第一卷论及"孔子删诗"说,但对"孔子删诗"说的提出、流布、影响等问题都未曾论述。通过清理相关材料,可知汉初陆贾首次提出孔子编定《诗》一说,而司马迁则在陆贾的基础上,从编《诗》方式、标准... 袁行霈《中国文学史》第一卷论及"孔子删诗"说,但对"孔子删诗"说的提出、流布、影响等问题都未曾论述。通过清理相关材料,可知汉初陆贾首次提出孔子编定《诗》一说,而司马迁则在陆贾的基础上,从编《诗》方式、标准、目的等方面提出系统的"孔子删诗"说,但还未提出"删《诗》"一语。西汉末东汉初,《论语讖》在删减《诗》《书》章句文献的风气下,首次提出孔子"删《诗》"一语,此说得到王充、班固、应劭等东汉学者的接受而成为学界共识,并对汉代《诗经》学产生了较大的影响。 展开更多
关键词 “孔子删诗”说 提出 接受 影响 《诗经》学
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大型集装箱船迎浪航行的外飘砰击压力研究
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作者 陈胜男 高志龙 +1 位作者 牟立伟 王宁 《船舶工程》 北大核心 2013年第S1期25-27,46,共4页
采用直接计算法研究一艘大型集装箱船迎浪航行时的外飘砰击压力特点。基于三维势流理论Rankine面元法,应用DNV船级社的商业软件Wasim计算出该船在压载时不同海况下以不同航速航行时在非规则波中时域内的非线性运动响应时历,根据Wagner... 采用直接计算法研究一艘大型集装箱船迎浪航行时的外飘砰击压力特点。基于三维势流理论Rankine面元法,应用DNV船级社的商业软件Wasim计算出该船在压载时不同海况下以不同航速航行时在非规则波中时域内的非线性运动响应时历,根据Wagner型冲击理论计算得到该集装箱船艏外飘区域的外飘砰击压力。依据概率随机理论,得到不同工况下的外飘砰击概率以及外飘砰击压力极值,并分析概率和极值特点。 展开更多
关键词 外飘砰击压力 wagner型冲击理论 Rankine面元法 海况 时域
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论马克思自然观对西方生态学马克思主义的影响
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作者 张琳 《漯河职业技术学院学报》 2018年第4期66-70,共5页
马克思自然观蕴含着丰富的关于自然本体论、自然认识论、自然实践论、自然价值论等思想,能够为解决当今世界全球性的生态危机提供重要理论和方法论指导。本文在对马克思自然观生成的理论来源及其历程分析的基础上,通过重点考察马克思自... 马克思自然观蕴含着丰富的关于自然本体论、自然认识论、自然实践论、自然价值论等思想,能够为解决当今世界全球性的生态危机提供重要理论和方法论指导。本文在对马克思自然观生成的理论来源及其历程分析的基础上,通过重点考察马克思自然观的哲学意蕴以及其对生态学马克思主义产生的诸多影响,笔者发现,马克思自然观具有科学预见性、优越性、生命力和感召力。他的"人与自然关系的思想""生态危机根源论"以及"解决生态危机的途径方法"对生态学马克思主义产生和发展以及对新时代中国特色社会主义的发展具有重要实践指导意义,能够揭示出生态学马克思主义理论对其的误读和扭曲。 展开更多
关键词 马克思自然观 理论来源 哲学意蕴 生态学马克思主义 影响
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