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Field test on temperature field and thermal stress for prestressed concrete box-girder bridge

Baoguo CHEN, Rui DING, Junjie ZHENG, Shibiao ZHANG

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 2,   Pages 158-164 doi: 10.1007/s11709-009-0002-9

Abstract: A field test was conducted to investigate the distribution of temperature field and the variation ofThe change of hydration heat temperature consists of four periods: temperature rising period, constanttemperature period, rapid temperature fall period and slow temperature fall period.The peak value of hydration heat temperature increases with the increasing casting temperature of concreteAccording to field tests, the thermal stress incurred by hydration heat may induce temperature cracks

Keywords： box-girder bridge     field test     hydration heat     temperature field     temperature gradient     thermal stress    

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Study on the measurement of temperature field using laser holographic interferometry

Jinrong ZHU, Suyi HUANG, Wei LV, Huaichun ZHOU

Frontiers in Energy 2011, Volume 5, Issue 1,   Pages 120-124 doi: 10.1007/s11708-010-0107-9

Abstract: The temperature field of an axisymmetric ethylene diffusion flame is measured using laser holographicTemperature field inversion is completed with the aid of components distribution divided from numericalregion but will result in high error in the high temperature region.Moreover, the small error in environmental temperature measurement transfer to a high temperature rangeResults of temperature measurement using air components assumption relative to combustion simulation

Keywords： temperature field     flame     error analysis     holographic interferometry    

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Temperature field simulation of laser homogenizing equipment

Juanjuan WANG, Yunshan WANG, Fudong ZHU

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 1,   Pages 49-52 doi: 10.1007/s11465-009-0005-1

Abstract: The scanning ring facula’s mathematic model is established based on the temperature field’s superposingThe ring facula’s light intensity distribution and temperature distribution characteristics are achievedby simulating its temperature field.By studying the effect of parameters on the temperature field, the best parameter can be found.Results show that favorable temperature distribution characteristics can be attained by choosing appropriate

Keywords： laser homogenizing technology     laser scanning ring facula     temperature field    

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Analytical models for the surface electrical field and temperature distributions of novel PB-PSOI devices

Sun Weifeng,Gao Shan,Lu Shengli, Chen Junning

Strategic Study of Chinese Academy of Engineering 2009, Volume 11, Issue 11,   Pages 82-87

Abstract:

In this paper, the 2-D analytical models for the surface electrical fieldand temperature distributions of PB-PSOI devices in terms of Poisson's solution and thermal diffusionThe dependences of the surface electrical field and temperature on the thickness and the length of the

Keywords： PB-PSOI     surface electrical field     temperature distribution     buried oxide    

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Modeling the gas flow in a cyclone separator at different temperature and pressure

Gujun WAN, Guogang SUN, Cuizhi GAO, Ruiqian DONG, Ying ZHENG, Mingxian SHI

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 4,   Pages 498-505 doi: 10.1007/s11705-010-0502-0

Abstract: The gas flow field in a cyclone separator, operated within a temperature range of 293 K – 1373 K andThe computational results show that the temperature and pressure significantly influence the gas velocityThis tendency of the decrease or increase, however, reduces gradually when the temperature is above 1000The temperature and pressure have a relatively weak influence on the axial velocity profiles.The outer downward flow rate increases with a temperature increase, whereas it decreases with a pressure

Keywords： cyclone separator     high temperature     high pressure     flow field     numerical simulation    

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Field measurements on microclimate in residential community in Guangzhou, China

Zhuolun CHEN, Lihua ZHAO, Qinglin MENG, Changshan WANG, Yongchao ZHAI, Fei WANG,

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 4,   Pages 462-468 doi: 10.1007/s11709-009-0066-6

Abstract: Taking a certain housing in Guangzhou as an example, we conduct the field measurement of the microclimateat fixed points for air temperature, relative humidity, black globe temperature and wind speed, etc.

Keywords： microclimate     outdoor thermal environment     air temperature     black globe temperature     wind speed    

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The Basic Characteristics of the Yangbajing Geothermal Field-A Typical High Temperature Geothermal System

Duo Ji

Strategic Study of Chinese Academy of Engineering 2003, Volume 5, Issue 1,   Pages 42-47

Abstract:

The Yangbajing Geothermal Field is one of non-volcanic high-temperature geothermal fields.Temperature inside the shallow reservoir is in the range of 150〜165℃ at the depth of 180〜280 m.The upper parts of temperature 251℃ is at depths ranging from 950m to 1350 m.The lower part is below 1850 m , in which the measured temperature is as high as 329℃ .

Keywords： high temperature geothermal     thermal reservoirs     genesis     Yangbajing     Tibet    

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Modelling autogenous expansion for magnesia concrete in arch dams

JIN Feng, LUO Xiaoqing, ZHANG Chuhan, ZHANG Guoxin

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 3,   Pages 211-218 doi: 10.1007/s11709-008-0025-7

Abstract: the concrete; 3) the autogenous expansion strain rates of Magnesia Concrete bear a relation between temperatureThe model is verified by some experimental data of autogenous expansion of Magnesia Concrete and field-measured

Keywords： field-measured     irreversibility     temperature     irreversible     element arch    

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Influence of the field humiture environment on the mechanical properties of 316L stainless steel repaired

Lianzhong ZHANG, Dichen LI, Shenping YAN, Ruidong XIE, Hongliang QU

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 4,   Pages 513-519 doi: 10.1007/s11465-018-0503-0

Abstract: The field humiture environment also showed minimal impact on the average hardness of Fe314 cladding layers

Keywords： laser cladding     repaired performance     tensile strength     temperature and humidity environment    

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Small-scale area survey and analyses of Xinjiang’s coal field fire in China

Zhong Maohua,Fu Tairan,Hu Zhongbin

Strategic Study of Chinese Academy of Engineering 2010, Volume 12, Issue 1,   Pages 12-17

Abstract:

In this paper, Xinjiang's coal field is selected as the investigationThrough a series of field surveys in Xinjiang, we made the small-scale area analysis of coal field firetechnique, and presented the reasonable evaluation of thermal anomaly conditions of Xinjiang's coal fieldTherefore, for the selected fire-extinguished coal field in Xinjiang, the fire extinguishing effect wasFor the coal field where the fire has not been extinguished, the utilization of this means approximately

Keywords： coal field fire     thermal anomaly     temperature     small-scale     remote sensing    

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Analysis and control of hydration heat of cast-in-place diaphragm of segmental precast box girder

Chen Yang,Zhong Yao,Zheng Kaiqi,Shen Bin,Meng Shaoping

Strategic Study of Chinese Academy of Engineering 2013, Volume 15, Issue 8,   Pages 99-103

Abstract: Based on three-dimensional transient temperature field theory, numerical simulation with ANSYS was performed, to investigate the distribution law of hydration heat temperature and stress.With the distribution of temperature and stress obtained from numerical simulation, a series of control

Keywords： concrete box girder     hydration heat     temperature field     stress field     cracks    

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Numerical simulation of bituminous coal combustion in a full-scale tiny-oil ignition burner: influence of excess air ratio

Zhengqi LI, Chunlong LIU, Xiang ZHANG, Lingyan ZENG, Zhichao CHEN

Frontiers in Energy 2012, Volume 6, Issue 3,   Pages 296-303 doi: 10.1007/s11708-012-0191-0

Abstract: The flame spread to the burner wall and the high-temperature region was enlarged in the radial direction

Keywords： numerical simulation     tiny-oil ignition burner     pulverized coal     temperature field    

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Recent progress in electric-field assisted combustion: a brief review

Frontiers in Energy 2022, Volume 16, Issue 6,   Pages 883-899 doi: 10.1007/s11708-021-0770-z

Abstract: Among the combustion technologies, electric-field assisted combustion is an advanced techno-logy thatIn the last two decades, tremendous efforts have been made to understand electric-field assisted combustionThese findings significantly facilitate the application of electric-field assisted combustion.

Keywords： electric field     combustion     flame stabilization     emission reduction     flame propagation    

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Numerical simulation of combustion characteristics at different coal concentrations in bituminous coal ignition in a tiny-oil ignition burner

Chunlong LIU, Qunyi ZHU, Zhengqi LI, Qiudong ZONG, Yiquan XIE, Lingyan ZENG

Frontiers in Energy 2013, Volume 7, Issue 2,   Pages 255-262 doi: 10.1007/s11708-013-0255-9

Abstract: As gas flowed to the burner nozzle, the high-temperature region expanded, ensuring a successful pulverized-coalWith increasing coal concentration (0.08–0.40 kg/kg), the gas temperature along the burner centerline

Keywords： numerical simulation     tiny-oil ignition burner     pulverized coal     temperature field    

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A MATLAB code for the material-field series-expansion topology optimization method

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 3,   Pages 607-622 doi: 10.1007/s11465-021-0637-3

Abstract: This paper presents a MATLAB implementation of the material-field series-expansion (MFSE) topo-logy optimizationThe MFSE method uses a bounded material field with specified spatial correlation to represent the structuralWith the series-expansion method for bounded fields, this material field is described with the characteristic

Keywords： MATLAB implementation     topology optimization     material-field series-expansion method     bounded materialfield     dimensionality reduction    

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Title Author Date Type Operation

Field test on temperature field and thermal stress for prestressed concrete box-girder bridge

Baoguo CHEN, Rui DING, Junjie ZHENG, Shibiao ZHANG

Journal Article

Study on the measurement of temperature field using laser holographic interferometry

Jinrong ZHU, Suyi HUANG, Wei LV, Huaichun ZHOU

Journal Article

Temperature field simulation of laser homogenizing equipment

Juanjuan WANG, Yunshan WANG, Fudong ZHU

Journal Article

Analytical models for the surface electrical field and temperature distributions of novel PB-PSOI devices

Sun Weifeng,Gao Shan,Lu Shengli, Chen Junning

Journal Article

Modeling the gas flow in a cyclone separator at different temperature and pressure

Gujun WAN, Guogang SUN, Cuizhi GAO, Ruiqian DONG, Ying ZHENG, Mingxian SHI

Journal Article

Field measurements on microclimate in residential community in Guangzhou, China

Zhuolun CHEN, Lihua ZHAO, Qinglin MENG, Changshan WANG, Yongchao ZHAI, Fei WANG,

Journal Article

The Basic Characteristics of the Yangbajing Geothermal Field-A Typical High Temperature Geothermal System

Duo Ji

Journal Article

Modelling autogenous expansion for magnesia concrete in arch dams

JIN Feng, LUO Xiaoqing, ZHANG Chuhan, ZHANG Guoxin

Journal Article

Influence of the field humiture environment on the mechanical properties of 316L stainless steel repaired

Lianzhong ZHANG, Dichen LI, Shenping YAN, Ruidong XIE, Hongliang QU

Journal Article

Small-scale area survey and analyses of Xinjiang’s coal field fire in China

Zhong Maohua,Fu Tairan,Hu Zhongbin

Journal Article

Analysis and control of hydration heat of cast-in-place diaphragm of segmental precast box girder

Chen Yang,Zhong Yao,Zheng Kaiqi,Shen Bin,Meng Shaoping

Journal Article

Numerical simulation of bituminous coal combustion in a full-scale tiny-oil ignition burner: influence of excess air ratio

Zhengqi LI, Chunlong LIU, Xiang ZHANG, Lingyan ZENG, Zhichao CHEN

Journal Article

Recent progress in electric-field assisted combustion: a brief review

Journal Article

Numerical simulation of combustion characteristics at different coal concentrations in bituminous coal ignition in a tiny-oil ignition burner

Chunlong LIU, Qunyi ZHU, Zhengqi LI, Qiudong ZONG, Yiquan XIE, Lingyan ZENG

Journal Article

A MATLAB code for the material-field series-expansion topology optimization method

Journal Article