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| 1 | Durability of sea-sand containing concrete:Effects of chloride ion penetration显示文摘这份报纸在水 / 水泥比率的效果上描述一个直角的实验,在反应鈥渞e sistance 上每沙的立方的米,治好的时间,和类型浇消费到氯化物离子穿入鈥吗?包含水泥的海沙被用于试用。在不同因素层次的氯化物离子散开系数的分析被执行。在水泥的氯化物离子散开的一个预兆的模型通过回归分析被开发。试验性的结果看那水 / 水泥比率什么时候从 0.45 ~ 0.60 变化,并且水消费从 185 ~ 215 kg 每立方的米变化,并且治好的时间然后从 30 ~ 180 d 变化在顺序的效果秋天的尺寸(很重要第一) :治好预定,沙打字,每立方的米浇消费,并且水 / 水泥比率。氯化物离子穿入被减少,并且水泥的更好的耐久性与更长治好时间被观察,少些每立方的米,和更小的水 / 水泥比率浇消费。 | Yin Huiguang Li Yan Lv Henglin Gao Quan | 2011 | Mining Science and Technology2011，21，1： | 10 |
| 2 | Degradation behavior of concrete under corrosive coal mine environment显示文摘Experimental investigations were taken for the degradation of concrete under coupling effects of hydrochloric acid mist and mixed salt mist consisting of chlorine and sulfate and carbon dioxide according to coal mine environment. Concrete specimens were subjected to four different deterioration time from 45 days to 180 days, with an interval of 45 days. The results showed that the carbonization depth of concrete increased speedy at first, then gently and then rapidly again with the change of fragility.The compressive strength of concrete increased at the initial stage of deterioration, and then decreased until the time of 135 days when they came to the second ascension of small quantity and then entered the decline trend under the coupling effect of carbonization and acid-salt attack. The elastic modulus changed slightly with the deterioration, meanwhile the fragility and ductility changed significantly before and after deterioration time of 180 days, which was identical to the failure modes. | Shuchun Zhou Henglin Lv Yuanzhou Wu | 2019 | International Journal of Mining Science and Technology2019，29，2： | 6 |
| 3 | Finite element analysis for wellbore stability of transversely isotropic rock with hydraulic-mechanical-damage coupling显示文摘The finite element analysis(FEA) technology by hydraulic-mechanical-damage(HMD) coupling is proposed in this paper for wellbore stability analysis of transversely isotropic rock, developed basing on the recently established FEA technology for isotropic rock. The finite element(FE) solutions of numerical wellbore model, damage tensor calculation and Pariseau strength criterion for transversely isotropic rock are developed for researching the wellbore failure characteristics and computing the collapse and fracture pressure of laminated rock as shale reservoirs. The classic Biot constitutive for rock as porous medium is introduced to establish a set of FE equations coupling with elastic solid deformation and seepage flow. To be in accord with the inclined wellbore situation, the coordinate transformation for global, wellbore, in-situ stress and transversely isotropic formation coordinate systems is established for describing the in-situ stress field and the results in laminated rock. To be in accord with the practical situation, a three-dimensional FE model is developed, in which several other auxiliary technologies are comprehensively utilized, e.g., the typical Weibull distribution function for heterogeneous material description and adaptive technology for mesh refinement. The damage tensor calculation technology for transversely isotropic rock are realized from the well-developed continuum damage variable of isotropic rock. The rock is subsequently developed into a novel conceptual and practical model considering the stress and permeability with the damage. The proposed method utilizing Pariseau strength criterion fully reflects the strength parameters parallel or perpendicular to bedding of the transversely isotropic rock. To this end, an effective and reliable numerically three-step FEA strategy is well established. Numerical examples are given to show that the proposed method can establish efficient and applicable FE model and be suitable for analyzing the state of pore pressure and stress surrounding wellbore, furthermore to demonstrate the effectiveness and reliability of the instability analysis of wellbore failure region and the safe mud weight computation for collapse and fracture pressure of transversely isotropic rock. | WANG YongLiang LIUZhanLi YANG HengLin ZHUANG Zhuo | 2017 | Science China(Technological Sciences)2017，60，1： | 4 |
| 4 | Relationship between biogeochemical features of biogenic elements and flocculation in the Changjiang Estuary显示文摘RelationshipbetweenbiogeochemicalfeaturesofbiogenicelementsandflocculationintheChangjiangEstuary￥LinYi'an;TangRenyou;LiYan;Do... | Lin Yi’an Tang Renyou Li Yan Dong Henglin Guan Xuwei and Chen Yinzu (Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China Shanghai Survey and Designing Institute of Ministry of Energy and Ministry of Water Resources, | 1995 | Acta Oceanologica Sinica1995，14，2： | 3 |
| 5 | Control Efficacy of 45% Propamocarb·Denamidone SC against Potato Late Blight显示文摘The effects of different doses of 45% propamocarb·fenamidone SC on potato late blight were studied in the paper. The results showed that the overall control effect of 45% propamocarb·fenamidone SC against potato late blight on the 14 th day after the third spraying were 67. 64%- 83. 78%. The yield of potato reached 19 972. 5- 23 302. 5 kg / hm2,with higher marketable tuber rate and lower rotten tuber rate. With the increase in fungicide dose,the difference in control effect against late blight was significant,but the yield-increasing effect on potatoes was not significant. The appropriate application dosage of 45% propamocarb·fenamidone SC were 450- 675 g / hm2. | Xiao Chunfang Shen Yanfen Tian Henglin Gao Jianhua Zhang Yuanxue Chen Jiaji Cheng Qun Xu Yi | 2014 | Plant Diseases and Pests2014，5，5： | 3 |
| 6 | Propofol effectively inhibits lithium-pilocarpine-induced status epilepticus in rats via downregulation of N-methyl-D-aspartate receptor 2B subunit expression显示文摘Status epilepticus was induced via intraperitoneal injection of lithium-pilocarpine.The inhibitory effects of propofol on status epilepticus in rats were judged based on observation of behavior,electroencephalography and 24-hour survival rate.Propofol(12.5-100 mg/kg) improved status epilepticus in a dose-dependent manner,and significantly reduced the number of deaths within 24 hours of lithium-pilocarpine injection.Western blot results showed that,24 hours after induction of status epilepticus,the levels of N-methyl-D-aspartate receptor 2A and 2B subunits were significantly increased in rat cerebral cortex and hippocampus.Propofol at 50 mg/kg significantly suppressed the increase in N-methyl-D-aspartate receptor 2B subunit levels,but not the increase in N-methyl-D-aspartate receptor 2A subunit levels.The results suggest that propofol can effectively inhibit status epilepticus induced by lithium-pilocarpine.This effect may be associated with downregulation of N-methyl-D-aspartate receptor 2B subunit expression after seizures. | Henglin wang Zhuoqiang Wang Weidong Mi Cong Zhao Yanqin Liu Yongan Wang Haipeng Sun | 2012 | Neural Regeneration Research2012，7，11： | 3 |
| 7 | Stability analysis of the pillars between bedded salt cavern gas storages by cusp catastrophe model显示文摘The failure of pillars between bedded salt cavern gas storages can be seen as processes that the deformations of pillars convert from continuous gradual change system to catastrophe state,which are typical nonlinear catastrophe problems.In the paper,the cusp catastrophe model is proposed to obtain the stability factors of pillars.It can overcome the shortages of traditional strength reduction finite element method(SR FEM) and greatly improve the accuracy of stability factors obtained by numerical simulations.The influences of cavern depth,gas pressure,pillar width,and time on the stability factors are studied.Y-1 and Y-2 salt cavern gas storages,located at Jiangsu province of China,were simulated as examples.The stability factors of pillars between Y-1 and Y-2 were evaluated,and the running parameters were recommended to ensure the pillars stability.The results showed that the cusp catastrophe model has high practicability and can precisely predict the stability factors.The stability factors are equidirectional with the increase of gas pressure and pillar width,but reverse to the increase of cavern depth and time.The stability factors of pillars between Y-1 and Y-2 are small for narrow widths,which are influenced greatly by gas pressure,time,pressure difference,and gas production rate.In order to ensure the safety of pillars,the lowest gas pressure,safe running time,max.pressure difference and max.gas production rate of Y-1 and Y-2 were recommended as 7 MPa,5 years,3 MPa,and 0.50 MPa/d,respectively. | WANG TongTao YAN XmangZhen YANG HengLin YANG XiuJuan | 2011 | Science China(Technological Sciences)2011，54，6： | 2 |
| 8 | Study of aquatic chemical characteristic in some bays along the coastal region of Zhejiang Province显示文摘In this paper,the aquatic chemical characteristics in the Hangzhou Bay,Xiangshan Bay and Leqing Bay along the coastal region of Zhejiang Province are discussed . Results show that the seasonal variations of chemical elements are obvious. The distribution of silicate in Hangzhou Bay and contents of dissolved oxygen and nutrient in the Xiangshan Bay are found to be unusual in winter. Correlations among the elements are complex. The content of nutrient in the Hangzhou Bay is higher than that in Xiangshan Bay and the content of nutrient in the Xiangshan Bay is higher than that in the Leqing Bay . The variation of the ratio of N/P is obvious. This reflects the aquatic chemical characteristics in the bay. Finally, this paper also discusses the reason why the aquatic chemical characteristics in the bays are unusual. | Wang Yuheng,Dong Henglin and Jiang Guochang The Second Institute of Oceanography,State Oceanic Administration ,Hangzhou,China | 1990 | Acta Oceanologica Sinica1990，9，4： | 2 |
| 9 | Two-level optimization of airframe structures using response surface approximation显示文摘 | LI Guosong WANG Henglin ARYASOMAYAJULA S | 2000 | International Journal of Structural and Multidisciplinary Optimization2000，20，2： | 1 |
| 10 | Thermal properties optimization of envelope in energy-saving renovation of existing public buildings显示文摘 | Jianen Huang Henglin Lv Tao Gao Wei Feng Yanxia Chen Tai Zhou | 2014 | Energy & Buildings2014，，： | 1 |
| 11 | In vitro response of Plasmodiumfalapcirum on the China-Vietnam border to nine antimalarials显示文摘 | Yang Henglin Liu Dequan Huang Kaiguo | 1995 | Southeast Asian J TropMed Pub Hlth1995，26，： | 1 |
| 12 | Deformation Mechanisms and Safe Drilling Fluids Density in Extremely Thick Salt Formations显示文摘Hydrocarbons are very often associated with salt structures. The oil and gas industry is often required to drill along and through long salt sections to reach and recover hydrocarbons. The unique physical properties of salt require special techniques to ensure borehole stability and adequate casing design. This paper assumed that the mechanical behavior of salt is regulated by the magnitude of mean stress and octahedral shear stress and under the influence of different stress conditions,the deformation of rock salt can be represented by three domains,i.e. compression domain,volume unchanged domain,and dilatancy domain,which are separated by a stress dependent boundary. In the compression domain,the volume of salt decreases until all microcracks are closed,with only elastic deformation and pure creep; in the volume unchanged domain the deformation is considered steady incompressible flow controlled by pure creep; and in the dilatancy domain the volume of salt increases during deformation due to micro-cracking,causing damage and accelerating 'creep' until failure. This paper presents a hypothesis that the borehole is stable only when the magnitude of octahedral shear stress is below the dilatancy boundary. It gives the design method for determining drilling fluids density,and calculates the closure rate of borehole with the recommended drilling fluids density. If the closure rate of the borehole is less than 0.1%,the drilling fluids density window can be used during drilling through extremely thick salt formations. | Yang Henglin Chen Mian Zhang Guangqing | 2007 | Petroleum Science2007，4，4： | 1 |
| 13 | Finite element analysis for inclined wellbore stability of transversely iso-tropic rock with HMCD coupling based on weak plane strength criterion显示文摘The finite element analysis(FEA) technology by hydraulic-mechanical-chemical-damage(HMCD) coupling is proposed in this paper for inclined wellbore stability analysis of water-sensitive and laminated rock, developed basing on the recently established FEA technology for transversely isotropic rock with hydraulic-mechanical-damage(HMD) coupling. The chemical activity of the drilling fluid is considered as phenomenological hydration behavior, the moisture content and parameters of rock considering hydration could be determined with time. The finite element(FE) solutions of numerical wellbore model considering the chemical activity of drilling fluid, damage tensor calculation and weak plane strength criterion for transversely isotropic rock are developed for researching the wellbore failure characteristics and computing the time-dependent collapse and fracture pressure of laminated rock as shale reservoirs. A three-dimensional FE model and elastic solid deformation and seepage flow coupled equations are developed, and the damage tensor calculation technology for transversely isotropic rock are realized by introducing effect of the hydration and the stress state under the current load. The proposed method utilizing weak plane strength criterion fully reflects the strength parameters in rock matrix and weak plane. To the end, an effective and reliable numerically three-step FEA strategy is well established for wellbore stability analysis. Numerical examples are given to show that the proposed method can establish efficient and applicable FE model and be suitable for analyzing the timedependsolutions of pore pressure and stresses, and the evolution region considering the hydration surrounding wellbore,furthermore to compute the collapse cycling time and the safe mud weight for collapse and fracture pressure of transversely isotropic rock. | WANG YongLiang ZHUANG Zhuo LIU ZhanLi YANG HengLin LI ChenFeng | 2017 | Science China(Technological Sciences)2017，60，4： | 1 |
| 14 | Decomposing graphs into forests of paths with size less than three 显示文摘 | Chen Bailiang Fu Henglin Huang Guoqing | 1991 | Australas J Combin1991，3，1： | 1 |
| 15 | The linear 2-arboricity of complete bipartite graphs显示文摘 | Fu Henglin Huang Guoqing | 1994 | Ars Combin1994，38，3： | 1 |
| 16 | Optimal design on clearance of piston friction pair for water hydraulic pump 显示文摘 | Huang Guoqin Yu Jin Pu Henglin | 2011 | Adv Mater Res2011，，： | 1 |
| 17 | Deterioration behavior of reinforced concrete beam under compound effects of acid-salt mist and carbon dioxide显示文摘 | L Henglin WU Yuanzhou FANG Zhongnian | 2015 | Construction and Building Materials2015，77，： | 1 |
| 18 | Modeling of parasitic inductive couplings in a pi-shaped common mode EMI filter 显示文摘 | Chen Henglin Qian Zhaoming Zeng Zhaohui | 2008 | IEEE Transactions on Electromagnetic Compatibility2008，50，1： | 1 |
| 19 | Use of recycled gypsum in the cement-based stabilization of very soft clays and its micro-mechanism显示文摘This paper presents an experimental study and micro-mechanism discussion on gypsum role in the mechanical improvements of cement-based stabilized clay(CBSC).A soft marine clay at two initial water contents(i.e.50%and 70%)was treated by reconstituted cementitious binders with varying gypsum to clinker(G/C)ratios and added metakaolin to facilitate the formation of ettringite,followed by the measurements of final water contents,dry densities and strengths in accordance with ASTM standards as well as microstructure by mercury intrusion porosimetry(MIP)and scanning electron microscopy(SEM).Results reveal that the gypsum fraction has a significant influence on the index and mechanical properties of the CBSC,and there exists a threshold of the G/C ratio,which is 10%and 15%for clays with 50%and 70%initial water contents,respectively.Beyond which adding excessive gypsum cannot improve the strength further,eliminating the beneficial role.At these thresholds of the G/C ratio,the unconfined compressive strength(UCS)values for clays with 50%and 70%initial water contents are 1.74 MPa and 1.53 MPa at 60 d of curing,respectively.Microstructure characterization shows that,besides the common cementation-induced strengthening,newly formed ettringite also acts as significant pore infills,and the associated remarkable volumetric expansion is responsible,and may be the primary factor,for the beneficial strength gain due to the added gypsum.Moreover,pore-filling ettringite also leads to the conversion of relatively large inter-aggregate to smaller intra-aggregate pores,thereby causing a more homogeneous matrix or solid skeleton with higher strength.Overall,added gypsum plays a vital beneficial role in the strength development of the CBSC,especially for very soft clays. | Jun Wu Li Liu Yongfeng Deng Guoping Zhang Annan Zhou Henglin Xiao | 2022 | Journal of Rock Mechanics and Geotechnical Engineering2022，14，3： | 1 |
| 20 | Decomposing graphs into forests of paths with size less than three显示文摘 | Chen Bailiang Fu Henglin Huang Guoqing | 1991 | Australas J Combin1991，3，1： | 1 |
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