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Influence evaluation of loading conditions during pressurized thermal shock transients based on thermal-hydraulics

Jinya KATSUYAMA, Shumpei UNO, Tadashi WATANABE, Yinsheng LI

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 4,   Pages 563-570 doi: 10.1007/s11465-018-0487-9

Abstract:

The thermal hydraulic (TH) behavior of coo-lant water is a key factor in the structural integrityassessments on reactor pressure vessels (RPVs) of pressurized water reactors (PWRs) under pressurizedthermal shock (PTS) events, because the TH behavior may affect the loading conditions in the assessmentanalysis with different operator action times, we also performed structural analyses for evaluating thermal-stress

Keywords： structural integrity     reactor pressure vessel     pressurized thermal shock     thermal hydraulic analysis     pressurized    

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Isogeometric analysis of coupled thermo-elastodynamic problems under cyclic thermal shock

Asghar AMANI DASHLEJEH

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 2,   Pages 397-405 doi: 10.1007/s11709-018-0473-7

Abstract: the proposed method was verified against a two-dimensional benchmark example subjected to constant thermalshock with available exact analytical solutions.Then a two-dimensional half-space benchmark example under thermal shock was solved.Finally, cyclic thermal shock (CTS) loading was applied on the half-space problem.

Keywords： isogeometric analysis     coupled thermo-elastodynamic     dynamic analysis     generalized newmark     cyclic thermalshock    

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CFD Simulation of thermal hydraulic characteristics in a typical upper plenum of RPV

Mingjun WANG, Lianfa WANG, Yingjie WANG, Wenxi TIAN, Jian DENG, Guanghui SU, Suizheng QIU

Frontiers in Energy 2021, Volume 15, Issue 4,   Pages 930-945 doi: 10.1007/s11708-021-0728-1

Abstract: comparative computational fluid dynamics (CFD) study was conducted on the three different types of pressurized

Keywords： pressurized water reactor (PWR)     upper plenum     internal structures     temperature distribution     computational    

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Beneficial effect of arginine vasopressin on hemorrhagic shock through improving the vascular reactivity

LI Tao, YANG Guangming, XU Jing, LIU Jiancang, LIU Liangming

Frontiers of Medicine 2008, Volume 2, Issue 3,   Pages 248-254 doi: 10.1007/s11684-008-0047-5

Abstract: The vascular reactivity and calcium sensitivity were decreased following hemorrhagic shock.Arginine vasopressin (AVP) was beneficial to endotoxic, infectious/septic and hemorrhagic shock.found that Rho kinase played an important role in the occurrence of calcium desensitization following shockSo we hypothesized that AVP might have beneficial effect on shock via activation of Rho kinase to regulateHemorrhagic shock (40 mmHg for 2 h) Wistar rats were adopted to observe the effects of small dose of
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In-Vessel Melt Retention of Pressurized Water Reactors: Historical Review and Future Research Needs Review

Weimin Ma, Yidan Yuan, Bal Raj Sehgal

Engineering 2016, Volume 2, Issue 1,   Pages 103-111 doi: 10.1016/J.ENG.2016.01.019

Abstract: (IVR) is given, which is a severe accident mitigation measure extensively applied in Generation III pressurizedcoolability and melt pool formation, may all contribute to the final state of the melt pool and its thermal

Keywords： Pressurized water reactor     Severe accident     In-vessel melt retention     Debris formation     Debris remelting     Melt pool formation     Melt pool thermal-hydraulics     Critical heat flux    

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Centrifuge experiment and numerical analysis of an air-backed plate subjected to underwater shock loading

Zhijie HUANG, Xiaodan REN, Zuyu CHEN, Daosheng LING

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 6,   Pages 1350-1362 doi: 10.1007/s11709-019-0559-x

Abstract: systematic centrifuge experiments and numerical studies are conducted to investigate the effect of shockThe second model to predict the time history of shock wave pressure from an underwater explosion wasAll of them are implemented into the numerical model to calculate the shock responses of the plate.By changing the scaled distances, different shock impulses were obtained and exerted on the steel plateSystematic numerical studies are performed to investigate the effect of the accumulated shock impulse

Keywords： underwater explosion     centrifuge experiment     shock load     dynamic response     accumulated shock impulse    

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Expression of heat shock protein gp96 in osteosarcoma and its clinical significance

GUO Weichun, CHEN Anmin

Frontiers of Medicine 2008, Volume 2, Issue 2,   Pages 200-203 doi: 10.1007/s11684-008-0038-6

Abstract: This study aims to detect the expression of heat shock protein gp96 (HSPgp96) in osteosarcoma and explore
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Intrinsic kinetics and external diffusion of catalytic steam gasification of fine coal char particles under pressurized

Xuantao Wu, Jie Wang

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 2,   Pages 415-426 doi: 10.1007/s11705-018-1725-8

Abstract: Catalytic steam gasification of fine coal char particles was carried out using a self-made laboratory reactor to determine the intrinsic kinetics and external diffusion under varying pressures (0.1–0.5 MPa) and superficial gas flow velocities (GFVs) of 13.8–68.8 cm?s . In order to estimate the gas release rate at a low GFV, the transported effect of effluent gas on the temporal gasification rate pattern was simulated by the Fluent computation and verified experimentally. The external mass transfer coefficients ( ) and the effectiveness factors were determined at lower GFVs, based on the intrinsic gasification rate obtained at a high GFV of 55.0 cm?s . The was found to be almost invariable in a wider carbon conversion of 0.2–0.7. The variations of at a median carbon conversion with GFV, temperature and pressure were found to follow a modified Chilton-Colburn correlation: (0.04< <0.19), where is total pressure and is atmospheric pressure. An intrinsic kinetics/external diffusion integrating model could well describe the gasification rate as a function of GFV, temperature and pressure over a whole gasification process.

Keywords： coal char     catalytic steam gasification     pressure     kinetics     diffusion    

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Alteration of heat shock protein 20 expression in preeclamptic patients and its effect in vascular and

Fanfan Li, Mengzhou He, Meitao Yang, Yao Fan, Yun Chen, Xi Xia, Yin Xie, Dongrui Deng

Frontiers of Medicine 2018, Volume 12, Issue 5,   Pages 542-549 doi: 10.1007/s11684-017-0576-x

Abstract: Heat shock protein 20 (HSP20) is ubiquitously expressed under normal physiological conditions and has

Keywords： preeclampsia     heat shock protein 20     vascular relaxation     coagulation-fibrinolytic system    

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The Formation of the Improved Chinese Pressurized Water Reactor Technology—CPR1000

Pu Jilong

Strategic Study of CAE 2008, Volume 10, Issue 3,   Pages 54-57

Abstract:

This paper introduces the formation of the Improved Chinese PWR technology—CPR1000 which is applied in Ling Ao Nuclear Power Station (Phase II) and Liaoning Hongyanhe Nuclear Power Station, and its key technological innovations.

Keywords： pressurized water reactor     CPR1000     self-owned brand    

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Discussions and practice of pressurized water injection for ultra low permeability oilfield

Zhang Hongliang

Strategic Study of CAE 2012, Volume 14, Issue 4,   Pages 62-64

Abstract: capability is poor and it's difficult to recovery oil efficiently, this paper describes pilot studies of pressurizedPressurized water injection can increase coefficient of water injection front drive and enhance oil recovery

Keywords： pressurized waterflood     passive microseismic     ultra low permeable oilfield     affected coefficient     effective    

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Simulation of Rock Shock Damage Evolution Law with Numerica lManifold Method

Liu Hongyan,Lv Shuran,Qin Siqing

Strategic Study of CAE 2007, Volume 9, Issue 3,   Pages 92-96

Abstract:

According to the definition of the damage variable basing on the stress wave attenuation, this paper makes an expansion to the original numerical manifold program which can only be used to simulate the body deformation of the linear elastic constitutive under the invariable load by adopting the stress wave attenuation damage model. The damage evolution law in the one-dimensional rock long bar under the impact load is simulated with the expanded program, and the damage evolution curves of the different points and the total material are obtained. The simulation results show that the increase of damage mainly happens in the initial time of the impact load, and with the time going on, the intensity of the stress wave attenuates and the damage do not increase evidently.

Keywords： rock     numerical manifold method     shock damage     evolution law    

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Effects on mechanical properties in electron beam welding of TC4 alloy by laser shock processing

LU Jinzhong, ZHANG Yongkang, KONG Dejun, REN Xudong, GE Tao, ZOU Shikun

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 4,   Pages 478-482 doi: 10.1007/s11465-007-0083-x

Abstract: power and spot diameter on residual stress and micro-hardness of the TC4 alloy welding line by laser shockfoundation for further controlling the distributions of residual stress and micro-hardness during laser shock
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Monitoring and analysis to shock in water aboutunderwater drilling blasting

Ke Songlin,Li Linna,Si Jianfeng,Zhong Dongwang

Strategic Study of CAE 2014, Volume 16, Issue 11,   Pages 103-106

Abstract: underwater reef blasting in Gulei sea channel of Xiamen Port as an example, the forming characteristic of shockBy field monitoring, the pressure of shock in water for different distances is attained, the major parameter, such as pressure amplitude and positive action time, and the propagation attenuation rule of shock

Keywords： Underwater drilling blasting     Shock wave in water     Pressure characteristics    

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The Regularity of Time of Arrival in 90° Bend Tunnel for Shock Wave due to Explosions From High Explosive

Shen Jun,Li Yongchi,Pang Weibin

Strategic Study of CAE 2006, Volume 8, Issue 3,   Pages 53-57

Abstract:

The propagating regularity and its influencing matter of shock wave in a 90° bend tunnel wereThis formula can also be used to compute velocity of shock in the 90° bend tunnel.

Keywords： internal explosion     shock wave     time of arrival    

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Title Author Date Type Operation

Influence evaluation of loading conditions during pressurized thermal shock transients based on thermal-hydraulics

Jinya KATSUYAMA, Shumpei UNO, Tadashi WATANABE, Yinsheng LI

Journal Article

Isogeometric analysis of coupled thermo-elastodynamic problems under cyclic thermal shock

Asghar AMANI DASHLEJEH

Journal Article

CFD Simulation of thermal hydraulic characteristics in a typical upper plenum of RPV

Mingjun WANG, Lianfa WANG, Yingjie WANG, Wenxi TIAN, Jian DENG, Guanghui SU, Suizheng QIU

Journal Article

Beneficial effect of arginine vasopressin on hemorrhagic shock through improving the vascular reactivity

LI Tao, YANG Guangming, XU Jing, LIU Jiancang, LIU Liangming

Journal Article

In-Vessel Melt Retention of Pressurized Water Reactors: Historical Review and Future Research Needs

Weimin Ma, Yidan Yuan, Bal Raj Sehgal

Journal Article

Centrifuge experiment and numerical analysis of an air-backed plate subjected to underwater shock loading

Zhijie HUANG, Xiaodan REN, Zuyu CHEN, Daosheng LING

Journal Article

Expression of heat shock protein gp96 in osteosarcoma and its clinical significance

GUO Weichun, CHEN Anmin

Journal Article

Intrinsic kinetics and external diffusion of catalytic steam gasification of fine coal char particles under pressurized

Xuantao Wu, Jie Wang

Journal Article

Alteration of heat shock protein 20 expression in preeclamptic patients and its effect in vascular and

Fanfan Li, Mengzhou He, Meitao Yang, Yao Fan, Yun Chen, Xi Xia, Yin Xie, Dongrui Deng

Journal Article

The Formation of the Improved Chinese Pressurized Water Reactor Technology—CPR1000

Pu Jilong

Journal Article

Discussions and practice of pressurized water injection for ultra low permeability oilfield

Zhang Hongliang

Journal Article

Simulation of Rock Shock Damage Evolution Law with Numerica lManifold Method

Liu Hongyan,Lv Shuran,Qin Siqing

Journal Article

Effects on mechanical properties in electron beam welding of TC4 alloy by laser shock processing

LU Jinzhong, ZHANG Yongkang, KONG Dejun, REN Xudong, GE Tao, ZOU Shikun

Journal Article

Monitoring and analysis to shock in water aboutunderwater drilling blasting

Ke Songlin,Li Linna,Si Jianfeng,Zhong Dongwang

Journal Article

The Regularity of Time of Arrival in 90° Bend Tunnel for Shock Wave due to Explosions From High Explosive

Shen Jun,Li Yongchi,Pang Weibin

Journal Article