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Full-scale site evaluation of ventilation expressway embankments underlain by warm permafrost along the

Frontiers of Structural and Civil Engineering   Pages 1047-1059 doi: 10.1007/s11709-023-0034-6

Abstract: ventilation, and combination of these, were adopted for the construction of the Gonghe−Yushu Expressway in warmpermafrost areas.strong scale effect of a wide embankment, the crushed-rock embankment (CRE) was warming up and the permafrostslab and CRE and ventilated ducts embankment can effectively decrease the ground temperature and raise permafrostThese findings would provide a reference for construction of expressway embankments in permafrost regions

Keywords： warm permafrost     expressway     ventilation embankments     temperature field    

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Appraising the potential of calcium sulfoaluminate cement-based grouts in simulated permafrost environments

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 5,   Pages 722-731 doi: 10.1007/s11709-023-0950-5

Abstract: study is to appraise the potential of calcium sulfoaluminate (CSA) cement-based grouts in simulated permafrostfabricated using CSA cement can develop rapidly in cold environments, thus rendering them promising for permafrost

Keywords： permafrost     low temperatures     calcium sulfoaluminate cement-based grouts     hydration reaction     compressive    

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“Heavenly Road”: The Qinghai–Tibet Railway

Yongfu SUN

Frontiers of Engineering Management 2020, Volume 7, Issue 2,   Pages 304-307 doi: 10.1007/s42524-019-0079-3

Abstract: Xiaobo WANG. [J]. Front. Eng, 2019, 6(1): 131-137.Peter REDFERN, Hua ZHONG. [J]. Front. Eng, 2017, 4(2): 193-200.Qixiang FAN. [J]. Front. Eng, 2017, 4(2): 231-237.Ming-zhou Liu,Cong-hu Liu,Mao-gen Ge,Yuan Zhang,Qing-hua Zhu. [J]. Front. Eng, 2016, 3(2): 144-146.Yu Zhao,Sheng-quan Wang,Ke-chao Zhu. [J]. Front. Eng, 2015, 2(1): 35-38.Ru-gui Chen,Jia-meng Chen. [J]. Front. Eng, 2014, 1(1): 52-61.An Wang. [J]. Front. Eng, 2014, 1(1): 13-17.

Keywords： permafrost protection     sustainable development     health guarantee system    

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The second short-term warm ischemia after vascular anastomosis did not affect early renal function recovery

Tao Qiu, Jiangqiao Zhou, Xiuheng Liu, Minghuan Ge, Zhiyuan Chen

Frontiers of Medicine 2012, Volume 6, Issue 3,   Pages 329-331 doi: 10.1007/s11684-012-0211-9

Abstract: that the allograft renal vein was twisted because of the surgeon’s mistake, which caused the warmThe allograft restored blood flow without second reperfusion and cold preservation after 9 min of warm

Keywords： renal transplantation     vein twist     ischemia-reperfusion injury    

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Impacts of emissions and meteorological changes on China’s ozone pollution in the warm seasons of 2013

Dian Ding, Jia Xing, Shuxiao Wang, Xing Chang, Jiming Hao

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 5, doi: 10.1007/s11783-019-1160-1

Abstract: Air Pollution Control Action Plan and changes in meteorological fields between 2013 and 2017 on the warm-seasonNorth China) at the beginning/end of warm seasons.

Keywords： O3 pollution     Meteorological influences     Emission reduction     NOx     VOC    

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Distresses and Countermeasures of Highway Subgrade in Plateau Permafrost Regions

Wang Shuangjie,Jin Long,Mu Ke,Zhu Dongpeng,Chen Donggen and Dong Yuanhong

Strategic Study of CAE 2017, Volume 19, Issue 6,   Pages 140-146 doi: 10.15302/J-SSCAE-2017.06.020

Abstract: selected, and the relations between the road diseases and the mean annual ground temperature (MAGT), permafrostFurthermore, new stabilizing technologies adaptive to large-scale permafrost subgrade (e.g., distributedThe results show that the MAGT, degradation rate of permafrost tables, and ice content are negatively

Keywords： permafrost     temporal effect     subgrade distress     field investigation     large-scale subgrade     stabilizing    

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Hydrological Response to Climate and Land Use Changes in the Dry–Warm Valley of the Upper Yangtze River Article

Congcong Li, Yanpeng Cai, Zhong Li, Qianqian Zhang, Lian Sun, Xinyi Li, Pengxiao Zhou

Engineering 2022, Volume 19, Issue 12,   Pages 24-39 doi: 10.1016/j.eng.2021.04.029

Abstract:

The hydrological process in the dry–warm valley of the mountainous area of southwest China hasIn this study, MIKE SHE was employed and calibrated for the Anning River Basin in the dry–warm

Keywords： Dry–warm valley     Hydrologic simulation     Multi-ensemble GCMs     Climate change     Land use variations    

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Decontamination efficiency and root structure change in the plant-intercropping model in vertical-flow constructed wetlands

Yonghua CHEN, Xiaofu WU, Mingli CHEN, Kelin LI, Jing PENG, Peng ZHAN

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 6,   Pages 906-912 doi: 10.1007/s11783-013-0579-z

Abstract: Three contrasting experiments, the plant-intercropping model (A), the warm-seasonal plant model (B),

Keywords： vertical-flow constructed wetlands     plant intercropping model     warm seasonal plant model    

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Study on several problems of oceanic gas hydrate reservoir exploitation

Bai Huyu,Li Qingping

Strategic Study of CAE 2011, Volume 13, Issue 5,   Pages 103-112

Abstract:

Several fundament problems like the mathematical model and numerical simulation of gas production from natural gas hydrate reservoir, similarity principle of gas hydrate physical simulation and exploitation method of gas hydrate reservoir are researched. A mathematical model is developed to simulate the hydrate dissociation in hydrate-bearing porous medium. The model can be used to analyze the effects of the flow of multiphase fluids, the intrinsic kinetic process of hydrate dissociation, the endothermic process of hydrate dissociation, ice-water phase equilibrium, the variation of permeability, the convection and conduction on the hydrate dissociation and gas and water production. For a single gas hydrate reservoir exploited only by depressurization, the study shows that water freezing appears in the formation with the dissociation of gas hydrate under certain condition due to energy deficiency for hydrate dissociation, which can lead to blockage of flow path and stopping of gas production. For a hydrate reservoir underlain by a free gas zone exploited by depressurization, the results show that the overlying hydrate zone can supply an amount of gas to improve the output of production well and evidently prolong the lifespan of gas reservoir. The combination method of warn water flooding with depressurization is proposed, which can comprehensively utilize the advantage of thermal stimulation and depressurization. The method is characterized by a long stable gas production period with a high gas rate.

Keywords： natural gas hydrate     depressurization     combination method of warm water flooding with depressurization    

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An Experimental Investigation on Low Load Combustion Stability and Cold-Firing Capacity of a Gasoline Compression Ignition Engine Article

Lei Zhou, Jianxiong Hua, Haiqiao Wei, Yiyong Han

Engineering 2019, Volume 5, Issue 3,   Pages 558-567 doi: 10.1016/j.eng.2018.12.010

Abstract: operate without further intake preheating; thus, this method is appropriate for engine cold-start and warm-up

Keywords： Gasoline compression ignition     Cold start     Warm-up condition     Fuel-injection strategy     Combustion stability    

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Title Author Date Type Operation

Full-scale site evaluation of ventilation expressway embankments underlain by warm permafrost along the

Journal Article

Appraising the potential of calcium sulfoaluminate cement-based grouts in simulated permafrost environments

Journal Article

“Heavenly Road”: The Qinghai–Tibet Railway

Yongfu SUN

Journal Article

The second short-term warm ischemia after vascular anastomosis did not affect early renal function recovery

Tao Qiu, Jiangqiao Zhou, Xiuheng Liu, Minghuan Ge, Zhiyuan Chen

Journal Article

Impacts of emissions and meteorological changes on China’s ozone pollution in the warm seasons of 2013

Dian Ding, Jia Xing, Shuxiao Wang, Xing Chang, Jiming Hao

Journal Article

Distresses and Countermeasures of Highway Subgrade in Plateau Permafrost Regions

Wang Shuangjie,Jin Long,Mu Ke,Zhu Dongpeng,Chen Donggen and Dong Yuanhong

Journal Article

Hydrological Response to Climate and Land Use Changes in the Dry–Warm Valley of the Upper Yangtze River

Congcong Li, Yanpeng Cai, Zhong Li, Qianqian Zhang, Lian Sun, Xinyi Li, Pengxiao Zhou

Journal Article

Decontamination efficiency and root structure change in the plant-intercropping model in vertical-flow constructed wetlands

Yonghua CHEN, Xiaofu WU, Mingli CHEN, Kelin LI, Jing PENG, Peng ZHAN

Journal Article

Study on several problems of oceanic gas hydrate reservoir exploitation

Bai Huyu,Li Qingping

Journal Article

An Experimental Investigation on Low Load Combustion Stability and Cold-Firing Capacity of a Gasoline Compression Ignition Engine

Lei Zhou, Jianxiong Hua, Haiqiao Wei, Yiyong Han

Journal Article