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浅议地铁ATS系统功能故障问题及维护

科学与信息化 2020年第33期 138-138页

作者：房帅长春市轨道交通集团有限公司吉林长春 130000

列车自动监控的ATS子系统,能够为全线列车运行的安全性、高效性与有效性提供重要的指挥、监控、调度.可实现对城市轨道交通全线列车运行的监督和控制,辅助行车调度人员对全线列车进行自动化管理.

关键词：轨道交通地铁信号 ATS系统

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基于直角网格的雷诺平均数值模拟技术研究

基于直角网格的雷诺平均数值模拟技术研究

新课改深化背景下提高初中生的数学核心素养浅谈

北京力学会第18届学术年会

作者：房帅陈志会张少平张玉东中国航天空气动力技术研究院

采用带边界层的局部加密八叉树直角网格,结合相贯线捕捉技术,完成对复杂计算外形细部特征的刻画,实现了应用于粘性流动计算的直角网格方便快捷的自动生成。本文通过解耦求解RANS方程和SA、SST湍流模型对流场进行解算。利用本文开发的自... 详细信息

采用带边界层的局部加密八叉树直角网格,结合相贯线捕捉技术,完成对复杂计算外形细部特征的刻画,实现了应用于粘性流动计算的直角网格方便快捷的自动生成。本文通过解耦求解RANS方程和SA、SST湍流模型对流场进行解算。利用本文开发的自适应直角网格粘性流动计算方法对ONERA-M6机翼跨声速绕流进行了数值模拟,并与实验数据进行了比较,结果表明当前的计算方法准确可靠,适用于工程应用需要。

关键词：直角网格 SA湍流模型 SST k-ω湍流模型 ONERA-M6

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才智 2018年第13期 136-136页

作者：房帅辽宁省大连市普兰店区第二十四中学

在新课改不断深化背景下,初中数学教师通过不断改进数学课堂教学,以"学数学的能力、用数学必备的品质"为主线,着力培养学生在实际生活中解决问题的方法和能力。

关键词：课改深化背景下初中生数学核心素养

Effects of MgSiO3 on the crystal growth and characteristics of type-Ib gem quality diamond in Fe-Ni-C system

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Chinese Physics B 2020年第12期29卷 511-518页

作者：鲁智云王永奎房帅蔡正浩赵占东王春晓马红安陈良超贾晓鹏 State Key Laboratory of Superhard Materials College of PhysicsJilin UniversityChangchun 130012China Key Laboratory of Materials Physics of Ministry of Education School of PhysicsZhengzhou UniversityZhengzhou 450001China

We report the effects of MgSiO3 addition on the crystal growth and characteristics of type-Ib diamonds synthesized in Fe–Ni–C system. The experiments were carried out with pressure at 5.5 GPa, temperature at 1385℃–1405℃, and duration of 23.1 h. As MgSiO3 increases from 0.0 wt% to 3.0 wt%, the diamond growth temperature increases from1385℃ to 1405℃, the addition of MgSiO3 and the movement of P–T diagram toward the higher temperature direction result in a series of effects to the Fe–Ni–C system and crystal growth. Firstly, it increases the content of metastable recrystallized graphite and accelerates the competition with the carbon source needed for diamond growth, thus causing the decreased crystal growth rate. Diamond crystals exhibit the combination form of {111}, {100}, {113}, and {110}sectors, the decreased {100} and {113} sectors, dominated {111} sector are all attributed to the higher growth rate in [100]direction caused by the synergy of MgSiO3 and the movement of P–T diagram. The higher growth rate in [100] direction also increases the metal catalyst and graphite inclusions and leads to the increase of residual tensile stress on the crystal surface. Accompanying with the high growth rate, a higher dissolution rate along [100] and [113] directions than [111]direction occurs at the microstructure and forms the significantly developed(111) stepped growth layer. In addition to the movement of P–T diagram, the addition of MgSiO3 poisons the catalyst and increases the nitrogen content of diamond from 120 ppm to 227 ppm.

关键词： diamond MgSiO3 nitrogen content recrystallized graphite

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人力资源管理部门内部的岗位轮换

企业改革与管理 2016年第1X期 68-页

作者：王法郑倩倩房帅中国航天空气动力技术研究院北京100074

岗位轮换虽是当前我国各个企业比较广泛应用的一种人力资源开发模式,但是在内部岗位轮换的过程中存在一些问题,本文通过查阅相关文献和调查的方法对在内部岗位轮换过程中存在的问题进行了总结和分析,并针对相关问题提出了比较合理的对策。

关键词：人力资源管理部门内部岗位轮换

Characteristics of urea under high pressure and high temperature

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Chinese Physics B 2019年第9期28卷 348-352页

作者：房帅马红安郭龙锁陈良超王遥丁路遥蔡正浩王健贾晓鹏 State Key Laboratory of Superhard Materials Jilin University

The properties of urea under high pressure and high temperature(HPHT) are studied using a China-type large volume cubic high-presentation apparatus(CHPA)(SPD-6 × 600).The samples are characterized by scanning electron microscopy(SEM), x-ray diffraction(XRD), and Raman *** directly observing the macroscopic morphology of urea with SEM, it is confirmed that the melting point of urea rises with the increase of *** XRD patterns of urea residues derived under different pressures show that the thermal stability of urea also increases with the increase of *** XRD pattern of the urea residue confirms the presence of C3H5N5O(ammeline) in the residue.A new peak emerges at 21.80°, which is different from any peak of all urea pyrolysis products under normal pressure.A more pronounced peak appears at 708 cm^-1 in the Raman spectrum, which is produced by C-H off-plane *** is determined that the urea will produce a new substance with a C-H bond under HPHT, and the assessment of this substance requires further experiments.

关键词： high pressure and high temperature(HPHT) urea thermal stability melting point