|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Fabry disease with acute cerebral infarction onset in a young patient显示文摘To the Editor:Fabry disease (FD)is a recessive X-linked hereditary disease.The onset age of the disease is in children and adolescents mostly.The average time from the onset of symptoms to the definite diagnosis needs 13.7 years in male patients and 16.3 years in female patients.FD happens rarely and it is easy to cause diagnosis and treatment delay.Here,we report a case of FD in a 27-year-old man who developed clinical symptoms with acute cerebral infarction onset to improve doctors' understanding of FD. | Ya-Nan Zhang Zhen-Ni Guo Hong-Wei Zhou Ying-Ying Cheng Jia-Chun Feng Zan Wang | 2019 | Chinese Medical Journal2019，，4： | 21 |
| 2 | The improved element-free Galerkin method for three-dimensional transient heat conduction problems显示文摘With the improved moving least-squares (IMLS) approximation, an orthogonal function system with a weight function is used as the basis function. The combination of the element-free Galerkin (EFG) method and the IMLS approximation leads to the development of the improved element-free Galerkin (IEFG) method. In this paper, the IEFG method is applied to study the partial differential equations that control the heat flow in three-dimensional space. With the IEFG technique, the Galerkin weak form is employed to develop the discretized system equations, and the penalty method is applied to impose the essential boundary conditions. The traditional difference method for two-point boundary value problems is selected for the time discretization. As the transient heat conduction equations and the boundary and initial conditions are time dependent, the scaling parameter, number of nodes and time step length are considered in a convergence study. | ZHANG Zan WANG JianFei CHENG YuMin LIEW Kim Meow | 2013 | Science China(Physics,Mechanics & Astronomy)2013，56，8： | 18 |
| 3 | The improved element-free Galerkin method forthree-dimensional wave equation显示文摘The paper presents the improved element-freeGalerkin(IEFG) method for three-dimensional wave propagation.The improved moving least-squares(IMLS) approximation is employed to construct the shape function,whichuses an orthogonal function system with a weight function asthe basis function.Compared with the conventional movingleast-squares(MLS) approximation,the algebraic equationsystem in the IMLS approximation is not ill-conditioned,andcan be solved directly without deriving the inverse matrix.Because there are fewer coefficients in the IMLS than in theMLS approximation,fewer nodes are selected in the IEFGmethod than in the element-free Galerkin method.Thus,theIEFG method has a higher computing speed.In the IEFGmethod,the Galerkin weak form is employed to obtain a discretized system equation,and the penalty method is appliedto impose the essential boundary condition.The traditionaldifference method for two-point boundary value problems isselected for the time discretization.As the wave equationsand the boundary-initial conditions depend on time,the scaling parameter,number of nodes and the time step length areconsidered for the convergence study. | Zan Zhang Dong-Ming Li Yu-Min Cheng Kim Moew Liew | 2012 | Acta Mechanica Sinica2012，28，3： | 12 |
| 4 | Preparation and Mechanical Properties of PAN/HNTs Composite Nanofibers显示文摘The enhanced composite nanofibers have attracted great attention for application in recent years. The electrospinning technique was considered to be a prospective production pattern for them. This paper provided a promising technique to prepare the polyacrylonitrile(PAN)/halloysite nanotube(HNT) composite nanofibers by using the electrospinning method. The PAN/HNTs composite nanofibers with well enhanced performance were successfully fabricated from a mixture of PAN/DMF/HNTs dispersion solution processed by the electrospinning technique. For achieving good dispersion in PAN polymer, the highly dispersed HNTs were obtained by using polycarboxylate modification employing the in-situ spray-drying method. The structure and properties of the composite nanofibers were characterized by TEM, XRD, EDX, IR, and DSC techniques. The obtained PAN/HNTs composite nanofibers with different HNTs contents were about 300—500nm in diameter. In addition, the mechanical properties of PAN/HNTs composite nanofibers were tested, which exhibited an excellently enhanced performance. | Liu Zan Qin Xixi Qin Dunzhong Cheng Zhilin | 2017 | China Petroleum Processing & Petrochemical Technology2017，19，1： | 5 |
| 5 | Pancreas-specific Pten deficiency causes partial resistance to diabetes and elevated hepatic AKT signaling显示文摘PTEN, phosphatidylinositol-3-kinase/AKT 小径的一个否定管理者,是胰岛素发信号的一个重要调节的人。决定胰腺的 Pten 的新陈代谢的函数,我们产生了胰特定的 Pten 大美人(PPKO ) 鼠标。PPKO 老鼠扩大了胰并且提高了 acinar 房间的增长。他们也展出了低血糖症, hypoinsulinemia,和改变的氨基的新陈代谢。尤其是, PPKO 老鼠证明 streptozotocin (STZ ) 的推迟的发作导致了糖尿病,到 high-fat-diet (HFD ) 的偏导性的抵抗导致了糖尿病。在 PPKO 老鼠为抵抗调查机制到导致 HFD 的多糖症,我们在主要胰岛素应答的纸巾评估了 AKT phosphorylation:肝,肌肉,和脂肪。我们发现在胰的 Pten 损失引起在肝发信号的 AKT 的举起。AKT 和它的下游的底层 GSK3 尾的 phosphorylation 在 PPKO 老鼠的肝被增加,当没有 Pten 等位基因的可检测的切除, PTEN 水平在 PPKO 老鼠的肝被减少时。戏剧性地揭示的 Proteomics 分析减少了在 PPKO 老鼠的肝 78-kDa 铺平调整葡萄糖的蛋白质(GRP78 ) ,它可以也贡献用 HFD 喂的 PPKO 老鼠的更低的血葡萄糖水平。一起,我们的调查结果在新陈代谢的规定在肝揭示新奇回答到胰腺的缺点,把一种新尺寸加到理解糖尿病抵抗。 | Zan Tong Yan Fan Weiqi Zhang Jun Xu Jing Cheng Mingxiao Ding Hongkui Deng | 2009 | Cell Research2009，19，6： | 5 |
| 6 | An Approach for Preparation of Excellent Antiwear PTFE Nanocomposites by Filling As-prepared Carbon Nanotubes/Nanorods(CNT/CNR)Mixed Nano-Carbon Material显示文摘The one-dimensional carbon nanotubes/nanorods(CNT/CNR)mixed nano-carbon material was successfully prepared by halloysite nanotubes(HNTs)as the template for the first time,in which CNT was formed through PVA modification in internal surface of HNTs and CNR was obtained by nanocasting PVA in hollow nanostructure of HNTs.The CNT of the mixture with flexible structure has ca.20 nm in pore diameter and ca.500 nm in length,whereas the CNR with hard and solid structure shows ca.30 nm in diameter and ca.2μm in length.For application as fillers,the CNT/CNR mixed nano-material is used to reinforce the properties of polytetrafluoroethylene(PTFE).The mechanical and tribological properties of PTFE nanocomposites were intensively examined by a series of testing.The ring-on-ring counterface was used to evaluate the tribological behavior of the nanocomposites.The results showed that the volume wear rate of the CNT/CNR-reinforced PTFE nanocomposite after being filled with 0.3%of CNT/CNR was only 1/700 of that of the pure PTFE under a load of 200 N and a rotary speed of 200 r/min,while other mechanical and tribological performance was comparable to the performance of pure PTFE,which exhibited a desirable application prospect. | Cheng Zhilin Cao Baochong Liu Zan Qin Dunzhong Zhu Aiping | 2018 | China Petroleum Processing & Petrochemical Technology2018，20，2： | 2 |
| 7 | Oil production rate predictions for steam assisted gravity drainage based on high-pressure experiments显示文摘Dual-well steam assisted gravity drainage(SAGD) has significant potential for extra-heavy oil recovery.China is conducting two dual-well SAGD pilot projects in the Fengcheng extra-heavy oil reservoir.Quick,direct predictions of the oil production rate by algebraic models rather than complex numerical models are of great importance for designing and adjusting the SAGD operations.A low-pressure scaled physical simulation was previously used to develop two separate theoretical models corresponding to the two different growth stages observed in the SAGD steam chambers,which are the steam chamber rising stage and the steam chamber spreading stage.A high-pressure scaled model experiment is presented here for one dual-well SAGD pattern to further improve the prediction models to reasonably predict oil production rates for full production.Parameters that significantly affect the oil recovery during SAGD were scaled for the model size based on the reservoir characteristics of the Fengcheng reservoir in China.Experimental results show the relationship between the evolution of the steam chamber and the oil production rate during the entire production stage.High-pressure scaled model test was used to improve the gravity drainage models by modifying empirical factors for the rising model and the depletion model.A new division of the SAGD production regime was developed based on the relationship between the oil production rate and the evolution of steam chamber.A method was developed to couple the rising and depletion models to predict oil production rates during the SAGD production,especially during the transition period.The method was validated with experiment data and field data from the literature.The model was then used to predict the oil production rate in the Fengcheng reservoir in China and the Athabasca reservoir in Canada. | GUO Jia ZAN Cheng MA DeSheng SHI Lin | 2013 | Science China(Technological Sciences)2013，56，2： | 2 |
| 8 | A Study on Tribological Properties of Polypropylene Nanocomposites Reinforced with Pretreated HNTs显示文摘The polypropylene(PP) nanocomposites filled with pretreated halloysite nanotubes(HNTs) were prepared by the melt-blending method. Before filling, the as-received HNTs powder was at first purified and then modified. The characterization tests showed that the purified HNTs had less impurity and more uniform pore size distribution and the surface hydrophobicity of the modified HNTs was obviously improved. The mechanical and tribological properties of the PP/HNTs nanocomposites were extensively investigated. The results showed that the tensile, bending and notched impact strength of the PP/HNTs nanocomposites was somewhat improved, but the wear resistance of the PP/HNTs nanocomposites was obviously enhanced. | Liu Zan Li Yanxiang Ma Lu Qin Dunzhong Cheng Zhilin | 2017 | China Petroleum Processing & Petrochemical Technology2017，19，3： | 2 |
| 9 | A High-Performance Composite Epoxy Coating Based on the Cooperative Enhancement of 2D Co_(2)(OH)2BDC and Electrospun PAN Nanofiber Membrane显示文摘Based on a two-dimensional(2D)Co-MOF(Co_(2)(OH)_(2)BDC)with a self-contained organic interface and low conductivity,a composite epoxy coating(2D Co_(2)(OH)_(2)BDC-PAN/EP)was constructed by a two-step preparation.First,a polyacrylonitrile(PAN)nanofiber membrane was electrospuned on the surface of Q235 steel,followed by coating using the epoxy coating(EP)containing 2D Co_(2)(OH)_(2)BDC.The 2D Co_(2)(OH)_(2)BDC-PAN/EP composite epoxy coatings showed robust mechanical performance and excellent corrosion resistance capacity. | Zhao Huarong Zhang Yueshuang Gan Shaojie Yue Qiankun Liu Zan Cheng Zhilin | 2022 | China Petroleum Processing & Petrochemical Technology2022，24，2： | 2 |
| 10 | Hydrothermal-assisted grinding route for WS_(2) quantum dots(QDs)from nanosheets with preferable tribological performance显示文摘The 2 D nanomaterials have achieved the superlubrication property whatever in solid or liquid lubrication in recent years.However,whether or not the nanosheets can stably disperse in oils and smoothly enter into the asperity of friction pairs is crucial for exerting the function of antifriction.The structure of 2 D QDs is desirable for addressing these issues due to its smaller 3 D size.In this study,we developed a facile preparation process for WS_(2) QDs with uniform 2 nm size from nanosheets via hydrothermal-assisted grinding approach.The structure of the as-obtained WS_(2) QDs was determined by a series of characterizations.The results showed that the as-obtained WS_(2) QDs exhibited the typical spectrum features of nanosized quantum dot.The results of the tribological performance in grease verified that the average friction coefficient(ACOFs) and wear volume(AWVs) were decreased by 7.89% and 63.90%relative to grease,respectively,exhibiting a preferable friction reducing and wear resistance. | Zhi-Lin Cheng Lu Ma Zan Liu | 2021 | Chinese Chemical Letters2021，32，1： | 2 |
| 11 | Concentric UCAs Based Low-Order OAM for High Capacity in Radio Vortex Wireless Communications显示文摘Due to the potential capacity-boosting for wireless communications,radio vortex wireless communication(RowComm)over orthogonal states/modes of orbital angular momentum(OAM)has been paid much attention to in recent years.A uniform circular array(UCA),as an efficient and convenient antenna structure,can transmit/receive multiple OAM beams with different OAM-modes simultaneously when the transmitter and receiver are aligned.However,for high-order OAMmodes,the OAM beams are divergent accompanied by severe attenuation.Thus,it is difficult to directly use high-order OAM-modes to achieve high capacity for RowComms.To obtain high capacity potentially offered by OAM-modes,in this paper we transform the singular UCA into the concentric UCAs,where high capacity can be achieved using multiple parallel low-order OAM-modes instead of all high-order OAM-modes,to increase the capacity of transmitter-receiver aligned Row-Comms.In particular,we study two cases:1).concentric UCAs based RowComms without co-mode interference;2).concentric UCAs based RowComms with co-mode interference.We propose a co-mode-interference-free and a co-mode-interference-contained mode-decomposition schemes to recover transmitted signals for these two cases,respectively.Additionally,we develop optimal power allocation schemes to maximize the capacity for these two cases.Numerical simulations are presented to validate and evaluate that our developed concentric UCAs based low-order RowComms can significantly increase the capacity as compared with that of singular UCA based RowComms. | Haiyue Jing Wenchi Cheng Zan Li Hailin Zhang | 2018 | Journal of Communications and Information Networks2018，3，4： | 2 |
| 12 | Research methods and performance analysis for the moderately high temperature refrigerant显示文摘In China, directly dropping high temperature refrigerant into conventional com- pressor is considered as a dominant technical route for development of moderately high temperature heat pump. Based on this route, selection criteria for high tem- perature refrigerant were presented with consideration of several influencing fac- tors. Moreover, a set of research methods were built including theoretical calcula- tions and experimental tests. Four high temperature refrigerants from HTR01 to HTR04 were compared and analyzed. In results, firstly, HTR03 and HTR04 belonging to non-ozone depleting refrigerants could bring outstanding environmental benefits; secondly, the condenser outlet water efficiently generated by heat pump using high temperature refrigerants could cover 60℃―90℃; finally, the feasibility of the tech- nical route and the research methods were proved. | SHI Lin ZAN Cheng | 2008 | Science China(Technological Sciences)2008，51，8： | 2 |
| 13 | Coupling of improved element-free Galerkin and boundary element methods for the 2D elasticity problems显示文摘 | ZHANG Zan LIEW K M CHENG Yumin | 2008 | Eng Analysis with Boundary Elements2008，32，2： | 1 |
| 14 | Analyzing 2D fracture problems with the improved element-free Galerkin method 显示文摘 | ZHANG Zan LIEW K M CHENG Yumin | 2008 | Eng Analysis with Boundary Elements2008，32，： | 1 |
| 15 | Graphene-intercalated HNTs for Reinforcing PTFE显示文摘The preparation of graphene(GN)and graphene-intercalated halloysite nanotubes(HNTs)to form nanomaterials was achieved by using HNTs template.As a promising application,a series of the polytetrafluoroethylene(PTFE)nanocomposite filled with GN and GN/HNTs at different mass fractions were prepared.The mechanical and friction properties of PTFE nanocomposites depending on the mass fraction of graphene-intercalated HNTs(GN/HNTs)were intensively investigated.The comparison between the effects of GN and GN/HNTs serving as fillers on properties of PTFE was presented.The results showed that in terms of enhancing the tensile strength of PTFE,the enhancement effect of GN is superior to GN/HNTs,and in terms of the elongation at break,the GN/HNTs filler could reserve more toughness than GN.The Young’s modulus of the GN/HNTs incorporated into PTFE is about 1.9 times larger than pure PTFE,and is superior to GN/HNTs.The friction coefficient of PTFE nanocomposites filled with GN and GN/HNTs was slightly higher than pure PTFE and the latter was lower than the former.The volume wear rate of PTFE nanocomposites filled with GN/HNTs was obviously lower than the case with GN,which exhibited the better wear resistance of GN/HNTs used as filler. | Liu Zan Cao Baochong Cheng Zhilin | 2020 | China Petroleum Processing & Petrochemical Technology2020，22，1： | 1 |
| 16 | A Simple and Highly-Efficient Approach for Construction of 2D Nanostructured H-BN/WS2 Heterojunction through Hydrothermal Method-Assisted Exfoliation and Their Friction Performance in Grease显示文摘In this work,the 2D nanostructured h-BN/WS2 heterojunction was successfully prepared by the hydrothermal method-assisted exfoliation of bulk h-BN and WS2.The morphology and structure of the as-prepared heterojunction were determined by a series of characterization techniques.The mechanism for the formation of the as-prepared heterojunction was proposed.The friction coefficient and wear rate of the as-prepared h-BN/WS2 heterojunction-grease was decreased by 33.9%and 45.9%,respectively,as compared to those of the neat grease. | Ma Zhansheng Liu Zan Cheng Zhilin | 2020 | China Petroleum Processing & Petrochemical Technology2020，22，3： | 1 |
| 17 | Tensile fracture behavior and strength distribution of SiC f /SiC composites with different SiBN interface thicknesses显示文摘 | Yongsheng Liu Nan Chai Hailong Qin Zan Li Fang Ye Laifei Cheng | 2014 | Ceramics International2014，，： | 1 |
| 18 | Highly dispersed Mn_2O_3 microspheres:Facile solvothermal synthesis and their application as Li-ion battery anodes显示文摘Nanostructured transition metal oxides are promising alternative anodes for lithium ion batteries.Li-ion storage performance is expected to improve if high packing density energy particles are available.Herein,Mn_2O_3 microspheres with a ca.18 μm diameter and a tapped density of 1.33 g/cm^3 were synthesized by a facile solvothermal-thermal coversion route.Spherical MnCO_3 precursors were obtained through solvothermal treatment and they decomposed and converted into Mn_2O_3 microspheres at an annealing temperature of 700 C.The Mn_2O_3 microspheres consisted of Mn_2O_3 nanoparticles with an average 40 nm diameter.These porous Mn_2O_3 microspheres allow good electrolyte penetration and provide an ion buffer reservoir to ensure a constant electrolyte supply.The Mn_2O_3 microspheres have reversible capacities of590 and 320 mAh/g at 50 and 400 mA/g,respectively.We thus report an efficient route for the fabrication of energy particles for advanced energy storage. | Jianfei Yu Lin Zhu Cheng Fan Cheng Zan Ling Hu Shuhui Yang Qiang Zhang Wancheng Zhu Lin Shi Fei Wei | 2015 | Particuology2015，13，5： | 1 |
| 19 | Evolution of composite fouling on a vertical stainless steel surface caused by treated sewage显示文摘 | Cheng Zan Lin Shi Wenyan Yang Xiujuan Ma | 2010 | Research article Front Energy Power Eng China 20102010，4，2： | 1 |
| 20 | On the performanceof cognitive relay networks under primary user’soutage constraint显示文摘 | Si Jiangbo Li Zan Cheng Xiaojun | 2011 | IEEE Communications Letters2011，15，4： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员