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| 1 | Experimental study on scale inhibition performance of a green scale inhibitor polyaspartic acid显示文摘Static and dynamic experiments were carried out to validate scale inhibition performance of a green scale inhibitor-polyaspartic acid (PASP). From the static experiment, it was shown that below 60℃, polyaspartic acid is very effective in scale inhibition, with the scale inhibition ratio exceeding 90% with only 3 mg/L PASP for the 600 mg/L hardness solution. For a higher hardness solution of 800 mg/L, the scale inhibition ratio can also reach 90% with 6 and 12 mg/L PASP at 30 and 60℃respectively. The SEM photographs of CaCO3 crystals indicate that the crystal structure transforms from a compact stick-shape to a loose shape so that the scale can be washed away easily instead of being deposited on the heat transfer surface. The dynamic experimental results show that almost no scales formed on the heat trans- fer surface and the fouling thermal resistance decreases extraordinarily if PASP is added in the solution. | QUAN ZhenHua CHEN YongChang WANG XiuRong SHI Cheng LIU YunJie MA ChongFang | 2008 | Science China Chemistry2008，51，7： | 18 |
| 2 | Experimental investigation of the influence of electric field on frost layer growth under natural convection condition显示文摘直接电流(DC ) 的影响一个冷垂直盘子上的霜的厚度和团上的电场被调查。生长有或没有电场的存在被拿,并且结果的霜层的相片证明电走在霜厚度上有强烈影响。霜厚度和霜质量上的冷板温度和周围的温度的影响也与电场在自然传送对流条件下面被调查。试验性的结果证明冷板温度在霜层厚度,而是它对霜质量的影响上有很强壮的效果是次要的;对霜团的影响或周围的温度在霜厚度上是比那更明显的。 | ZHANG Xinhua, LIU Zhongliang, WANG Jieteng, GOU Yujun, MENG Sheng and MA Chongfang Key Laboratory of Enhanced Heat Transfer and Energy Conservation, Ministry of Education Key Laboratory of Heat Transfer and Energy Conversion, Beijing Education Commission, Beijing University of Technology, Beijing 100022, China | 2006 | Progress in Natural Science:Materials International2006，16，4： | 16 |
| 3 | Numerical simulation and experimental investigation of natural convection heat transfer of molten salt around fine wire显示文摘In order to get the natural convection heat transfer mechanism of molten salt, the experimental investigation of natural convective heat transfer of LiNO3was studied after it was simulated by numerical calculation. Experiment was carried out on the nat-ural convection heat transfer of air and water around the fine wire using the method of Joule heating. The results showed that the natural convection heat transfer of air and water around the fine wire agreed well with Fand's correlation. Based on the aforementioned experiment, the natural convection heat transfer of molten salt LiNO3was studied by experiment and the same results were got. Therefore, the natural convection heat transfer of molten salt can be calculated by Fand's correlation, which takes into consideration the effect of viscosity dissipation. | LU YuanWei LI XiaoLi LI Qiang WU YuTing MA ChongFang | 2013 | Science China(Technological Sciences)2013，56，7： | 13 |
| 4 | Natural convection heat transfer of molten salt in a single energy storage tank显示文摘在在一辆柱体坦克的熔融的盐的热转移经由模拟和实验被学习在一辆单个精力存储坦克获得它的自然传送对流热转移。模拟和在一辆柱体坦克的水的自然传送对流热转移与 Garons 关联适合很好的试验性的结果表演。然而,当因为它的高粘性和低热电导率, Garons 关联被用来预言熔融的盐的自然传送对流热转移时,重要偏差发生。然而,熔融的盐的自然传送对流热转移的模仿的数据试验性的结果与那些适合很好。因此,考虑可变物理性质的效果的关联在这研究被建议预言熔融的盐的自然传送对流热转移。从建议关联的现在的数据的偏差是不到 d 控制模拟。在 summe 枼 ? 枼期间?? | LU YuanWei YU Qiang DU WenBin WU YuTing MA ChongFang | 2016 | Science China(Technological Sciences)2016，59，8： | 7 |
| 5 | Estimation of Ecological Water Requirements Based on Habitat Response to Water Level in Huanghe River Delta,China显示文摘In recent years,wetland ecological water requirements (EWRs) have been estimated by using hydrological and functional approaches,but those approaches have not yet been integrated for a whole ecosystem.This paper presents a new method for calculating wetland EWRs,which is based on the response of habitats to water level,and determines water level threshold through the functional integrity of habitats.Results show that in the Huanghe (Yellow) River Delta water levels between 5.0 m and 5.5 m are required to maintain the functional integrity of the wetland at a value higher than 0.7.One of the dominant plants in the delta,Phragmites australis,tolerates water level fluctuation of about ± 0.25 m without the change in wetland functional integrity.The minimum,optimum and maximum EWRs for the Huanghe River Delta are 9.42×106 m3,15.56×106 m3 and 24.12×106 m3 with water levels of 5.0 m,5.2 m and 5.5 m,corresponding to functional integrity indices of 0.70,0.84 and 0.72,respectively.A wetland restoration program has been performed,which aims to meet these EWRs in attempt to recover from losses of up to 98% in the delta's former wetland area. | CUI Baoshan HUA Yanyan WANG Chongfang LIAO Xiaolin TAN Xuejie TAO Wendong | 2010 | Chinese Geographical Science2010，20，4： | 7 |
| 6 | Design,fabrication and experimental research for an electrohydrodynamic micropump显示文摘This paper presented a novel electrohydrodynamic (EHD) micropump based on MEMS technology. The working mechanisms and classification of EHD micropump were introduced. The fabrication process of EHD micropump was presented with the material selection,optimal design of microelectrode and assembly process. Static pressure experiments and flow experiments were carried out using different fluid and the channel depth. The results indicated that the micropump could achieve a maximum static pressure head of 268 Pa at an applied voltage of 90 V. The maximum flow rate of the micropump-driven fluid could reach 106 μL/min. This paper analyzed the future of combining micropump with heat pipe to deal with heat dissipation of high power electronic chips. The maximum heat dissipation capacity of 87 W/cm2 can be realized by vaporizing the micropump-driven liquid on vaporizing section of the heat pipe. | YU He, YU Jian & MA ChongFang Key Lab of Enhanced Heat Transfer & Energy Conservation, Ministry of Education and Key Lab of Heat Transfer & Energy Conversion, Beijing Municipality, College of Enviromental and Energy Engineering, Beijing University of Technology, Beijing 100124, China | 2010 | Science China(Technological Sciences)2010，53，10： | 6 |
| 7 | Seismic behavior of precast concrete coupled shear walls with engineered cementitious composite (ECC) in the critical cast-in-place regions显示文摘The seismic performance of precast reinforced concrete(RC) coupled shear walls is significantly influenced by coupling beams and the beam-to-wall joints during large deformations into plastic ranges.This study investigated the use of engineered cementitious composite(ECC) in the cast-in-place beam-to-wall joints and the upper regions of the composite coupling beams as an innovative method to improve the seismic performance of precast RC coupled shear walls.Two 1/2-scale precast coupled shear walls were tested under reversed cyclic loading and seismic behavior in terms of failure characteristic,mechanical characteristic value,load-displacement hysteresis curves,load-displacement envelope relationship,stiffness degradation,ductility and energy dissipation capacity were evaluated.Research results show that the substitution of concrete with ECC in the critical cast-in-place regions proved to be an effective method to improve the seismic performance of the two-story spatial of precast RC coupled shear walls. | YANG Jian LIANG ShuTing ZHU XiaoJun SUN ChongFang GUO ZhengXing | 2017 | Science China(Technological Sciences)2017，60，8： | 6 |
| 8 | 不同体积碱性盐对50∶50聚乳酸-聚乙二醇酸体外降解的影响显示文摘目的探讨不同体积碱性盐对生物降解植入物聚乳酸(PLA)-聚乙二醇酸(PGA)(50∶50PLA-PGA)体外降解的影响。方法在50∶50PLA-PGA中添加不同体积的碳酸钙(CC)和碳酸氢钠(SBC),观察降解过程pH值,标本的分子量、大小、生物力学性质的变化。结果50∶50PLA-PGA中加入CC、SBC能代偿代谢物导致的pH值下降,但CC组降解过程减慢。结论50∶50PLA-PGA中适当添加SBC,不影响该材料的正常降解,又能代偿降解过程pH值的变化。 | 林建华 Agrawal CM Zhu Chongfang Athanasiou KA | 1998 | 福建医科大学学报1998，32，4： | 5 |
| 9 | Experimental study of viscosity characteristics of hightemperature heat transfer molten salts显示文摘In this paper several kinds of high temperature molten salts were investigated experimentally on viscosity-temperature characteristics with high-temperature viscometer.The viscosities of the molten salts were measured and compared with those from references to verify the reliability of the viscometer and measuring methods,and a good agreement was observed from the comparisons.Then,two new high-temperature molten salts were made from the HITEC salt by some additives and the viscosity-temperature profiles of them were obtained by experiments.The results show that the new molten salts have much lower viscosities,thus suitable for reducing the flow resistance in transportation system of high-temperature solar thermal power generation. | CHEN YongChang WU YuTing REN Nan MA ChongFang | 2011 | Science China(Technological Sciences)2011，54，11： | 5 |
| 10 | Development and experimental study of a miniature vapor compression refrigeration equipment显示文摘A miniature vapor compression refrigeration equipment prototype was developed for a range of microclimate control applications, including man portable cooling and distributed space conditioning. The miniature refrigeration equipment has dimensions of 260 mm × 250 mm × 120 mm, and weighs approximately 2.85 kg. The optimal motor and its transmission ratio, the optimal dimension of capillary tube and the optimal quantity of refrigerant charge were obtained by matching and operating performance experimental study. Experimental results show that the miniature refrigeration equipment can provide 300 W cooling, and its COPc is above 2.0. | ZHONG XiaoHui GOU YuJun WU YuTing MA ChongFang | 2008 | Science China(Technological Sciences)2008，51，5： | 4 |
| 11 | Mechanism of Calcium Carbonate Scale Deposition under Subcooled Flow Boiling Conditions显示文摘Fouling of heat transfer surfaces during subcooled flow boiling is a frequent engineering problem in process industries. It has been generally observed that the deposits in such industrial systems consist mainly of calcium carbonate (CaCO3), which has inverse solubility characteristics. This investigation focused on the mechanism to control deposition and the morphology of crystalline deposits. A series of experiments were carried out at different surface and bulk temperatures, fluid velocities and salt ion concentrations. It is shown that the deposition rate is controlled by different mechanism in the range of experimental parameters, depending on salt ion concentration. At higher ion concentration, the fouling rate increases linearly with surface temperature and the effect of flow velocity on deposition rate is quite strong, suggesting that mass diffusion controls the fouling process. On the contrary, at lower ion concentration, the fouling rate increases exponentially with surface temperature and is independent of the velocity, illustrating that surface reaction controls the fouling process. By analysis of the morphology of scale, two types of crystal (calcite and aragonite) are formed. The lower the temperature and ion concentration, the longer the induction period and the higher the percentage of calcite precipitated. | XING Xiaokai(邢晓凯) MA Chongfang(马重芳) CHEN Yongchang(陈永昌) | 2005 | Chinese Journal of Chemical Engineering2005，13，4： | 4 |
| 12 | Performance study on three-stage power system of compressed air vehicle based on single-screw expander显示文摘A new compressed-air engine system based on three-stage single screw expander was proposed to improve the performance of power system.Three different structure styles were presented,and the studies on the power performance and the distribution of expansion ratios between stages were carried out by programming and mathematical modeling of each style.Research results indicated that the best matches of expansion ratios with equal heat temperature for the air tank of pressure 30 MPa were seven-five-three for'first-stage heating'style,eight-five-three for'two-stage heating'style and five-five-four for'three-stage heating'style,respectively.Results also showed that heating up inlet air or increasing the expander efficiency might improve the power performance.The output power of the'two-stage heating'style is far higher than that of'first-stage heating'style and is a little lower than that of'three-stage heating'style.The new system showed good structure and power performances. | HE Wei,WU YuTing ,MA ChongFang&MA GuoYuan Key Laboratory of Enhanced Heat Transfer and Energy Conservation,Ministry of Education,and Key Laboratory of Heat Transfer and Energy Conversion,Beijing Municipality,College of Environmental and Energy Engineering,Beijing University of Technology,Beijing 100124,China | 2010 | Science China(Technological Sciences)2010，53，8： | 3 |
| 13 | Therapeutic effects of human amniotic epithelial cell transplantation on double-transgenic mice co-expressing APPswe and PS1ΔE9-deleted genes显示文摘Human amniotic epithelial cells (HAECs), which exhibit characteristics of embryonic and pluripotent stem cells, could be utilized for cell therapy without legal or ethical problems. Double-transgenic (TG) mice (n=20) and wild-type (WT) mice (n=20) were randomly assigned to two groups, respectively. The transplantation group was treated with HAECs and the control group with PBS. A six-radial arm water maze was used to assess spatial memory. Immunofluorescence was utilized to track HAEC survival. Immunohistochemistry was used to determine octamer-binding protein 4 (oct-4) and nanog expression in the HAECs. High-performance liquid chromatography (HPLC) was used to measure acetylcholine levels in the hippocampus. The density of cholinergic neurons in the basal forebrain and nerve fibers in the hippocampus was measured following acetylcholinesterase staining. Results showed that transplanted HAECs survived for at least eight weeks and migrated to the third ventricle without immune rejection. Graft HAECs also expressed the specific stem cell markers oct-4 and nanog. Compared with the control group, HAEC transplantation significantly ameliorated spatial memory deficits in TG mice, as well as increased acetylcholine levels and the number of hippocampal cholinergic neurites. Intracerebroventricular HAEC transplantation improved spatial memory in double-TG mice, and results suggested that increased acetylcholine levels in the hippocampus, released by surviving cholinergic neurites, were responsible for this improvement. | XUE ShouRu CHEN ChongFang DONG WanLi HUI GuoZhen LIU TianJun GUO Lille | 2012 | Science China(Life Sciences)2012，55，2： | 3 |
| 14 | Experimental investigations on the characteristics of melting processes of stearic acid in an annulus and its thermal conductivity enhancement by fins显示文摘 | Liu Zhongliang Sun Xuan Ma Chongfang | 2005 | Energy Conversion and Management2005，46，： | 1 |
| 15 | Convective heat transfer in the laminar-turbulent transition region with molten salt in a circular tube 显示文摘 | Wu Yuting Liu bin Ma Chongfang | 2009 | Experimental Ther- mal and Fluid Science2009，33，7： | 1 |
| 16 | River channel network design for drought flood control: A case study of Xiaoqinghe River basin, Jinan City, China显示文摘 | Baoshan Cui Chongfang Wang Wendong Tao | 2009 | Journal of Environmental Management2009，90，11： | 1 |
| 17 | Turbulent convec- tive heat transfer with molten salt in a circular pipe显示文摘 | Liu bin Wu Yuting Ma Chongfang | 2009 | International Communications in Heat and Mass Trans- fer2009，36，9： | 1 |
| 18 | Experimental investigations on the characteristics of melting processes of stearic acid in an annulus and its thermal conductivity enhancement by fins显示文摘 | LIU Zhongliang SUN Xuan MA Chongfang | | 0，，06： | 1 |
| 19 | Jet Impinging Heat Transfer with or Without Boiling 显示文摘 | MA Chongfang | 1996 | Journal of Thermal Science1996，5，2： | 1 |
| 20 | Development and experimental investigation of a miniature-scale refrigeration system 显示文摘 | WU Yuting MA Chongfang ZHONG Xiaohui | 2010 | Energy Convers Manage2010，51，1： | 1 |
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