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A new method in highway route design:joining circular arcs by a single C-Bézier curve with shape parameter

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2009年第4期10卷 562-569页

作者： Hua-hui cai Guo-jin WANG Institute of Computer Graphics and Image Processing State Key Lab of CAD & CG Zhejiang University Hangzhou 310027 China

We constructed a single C-Bezier curve with a shape parameter for G^2 joining two circular arcs. It was shown that an S-shaped transition curve, which is able to manage a broader scope about two circle radii than the Bezier curves, has no curvature extrema, while a C-shaped transition curve has a single curvature extremum. Regarding the two kinds of curves, specific algorithms were presented in detail, strict mathematical proofs were given, and the effectiveness of the method was shown by examples This method has the following three advantages：（1） the pattern is unified; （2） the parameter able to adjust the shape of the transition curve is available; （3） the transition curve is only a single segment, and the algorithm can be formulated as a low order equation to be solved for its positive root. These advantages make the method simple and easy to implement.

关键词： Transition curve C-Bezier curve Monotone curvature Shape parameter

Paradox of voting and the trivial preference set of groupdecision making

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Chinese Science Bulletin 1998年第7期43卷 550-553页

作者： Yuda Hu hui cai Shanghai Jiao Tong Univ Dept Math Shanghai 200030 Peoples R China

The structure of the trivial preference set of group decision making is studied, and the essential characters and generating reasons of the paradox of voting are revealed.

关键词： group decision making paradox of voting one-to-one mapping trivial preference set.

Synthesis and neuroprotective properties of novel cinnamide derivatives

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Chinese Chemical Letters 2008年第10期19卷 1163-1166页

作者： Bin Wu Li Zhou hui hui cai School of Pharmacy Nanjing Medical University Nanjing 210029 China

A new series of compounds （E）-1-（4-（bis-arylmethyl）piperazin-l-yl）-3-arylprop-2-en-1-one （1a-r）, have been synthesized and their structures were confirmed by ESI-MS and 1H NMR. The preliminary pharmacological ... 详细信息

关键词： Cinnamide derivatives Synthesis Neuroprotective Edaravone

Cluster model for wave patterns of a 3D vertically vibrated granular system

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Chinese Science Bulletin 2011年第13期56卷 1340-1347页

作者： cai hui MIAO GuoQing Institute of Acoustics and Key Laboratory of Modern Acoustics of Ministry of Education Nanjing University Nanjing 210093 China

Based on the cluster model for wave-like motions of a 2D vertically vibrated granular system we established previously (Chin Phys Lett,2010,27:124501),a generalization of the cluster model for a 3D granular system is presented in this *** 3D cluster model proposes frustums of pyramids as clusters of the 3D granular system,and explains wave patterns as the result of the cluster-boundary and cluster-plate *** analyzing the movement of one cluster in a collision period,we derive a basic equation,which relates the internal characteristic parameter to the external driving *** theoretical results reproduce the behaviors of wave patterns as changes in the driving parameters,and the 3D dispersion relation,which agree with the experimental results.

关键词：三维模型颗粒系统垂直振动集群波模板块碰撞驱动参数特征参数

N-Heterocyclic carbene-catalyzed enantioselective(dynamic) kinetic resolutions and desymmetrizations

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Science China Chemistry 2024年第2期67卷 482-511页

作者： Yi Zhang hui cai Xiuhai Gan Zhichao Jin National Key Laboratory of Green Pesticide Key Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of EducationGuizhou UniversityHuaxi DistrictGuiyang550025China

N-heterocyclic carbene-catalyzed enantioselective kinetic resolutions,dynamic kinetic resolutions,and desymmetrization reactions are systematically *** content is organized according to the activation modes involved i... 详细信息

关键词： N-heterocyclic carbene kinetic resolution dynamic kinetic resolution desymmetrization organocatalysis

Iron accumulation and its impact on osteoporotic fractures in postmenopausal women

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2023年第4期24卷 301-311页

作者： hui cai huimei ZHANG Weiting HE Heng ZHANG Department of Pharmacy the First Affiliated Hospital of Bengbu Medical CollegeBengbu Medical CollegeBengbu 233004China School of Pharmacy Bengbu Medical CollegeBengbu 233030China School of Clinical Medicine Bengbu Medical CollegeBengbu 233030China Department of Orthopedics the First Affiliated Hospital of Bengbu Medical CollegeLaboratory of Tissue and Transplant in Anhui ProvinceBengbu Medical CollegeBengbu 233004China Department of Orthopedics Jinling HospitalSchool of MedicineNanjing UniversityNanjing 210002China

Postmenopausal osteoporosis is a kind of degenerative disease,also described as“invisible killer.”Estrogen is generally considered as the key hormone for women to maintain bone mineral content during their *** accumulation refers to a state of human serum ferritin that is higher than the normal value but less than 1000μg/*** has been found that iron accumulation and osteoporosis could occur simultaneously with the decrease in estrogen level after *** recent years,many studies indicated that iron accumulation plays a vital role in postmenopausal osteoporosis,and a significant correlation has been found between iron accumulation and fragility *** this review,we summarize and analyze the relevant literature including randomized controlled trials,systematic reviews,and meta-analyses between January 1996 and July *** investigate the mechanism of the effect of iron accumulation on bone metabolism and discuss the relationship of iron accumulation,osteoporosis,and postmenopausal fragility fractures,as well as the main clinical treatment *** conclude that it is necessary to pay attention to the phenomenon of iron accumulation in postmenopausal women with osteoporosis and explore the in-depth mechanism of abnormal bone metabolism caused by iron accumulation,in order to facilitate the discovery of effective therapeutic targets for postmenopausal osteoporosis.

关键词： Iron accumulation Postmenopausal osteoporosis Bone metabolism Osteoporotic fracture

Study of wavelength demultiplexer based on two-dimensional photonic crystals

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Optoelectronics Letters 2008年第5期4卷 339-341页

作者： LIU hui cai Xiang-bao College of Science Nanfing University of Posts and Telecommunications Nanjing 210003 China

A wavelength demultiplexer based on two dimensional photonic crystal waveguides is proposed. By using the finite differ-ence time domain (FDTD) method and plane wave extension (PWE) method,the transmission spectra and the distributions of mode field are obtained,and the wavelength demultiplexer has been synthesized. The characteristics of the device are obtained.

关键词：波长信号分离器晶体 FDTD方法

Importance of excluded duplicates reporting in a systematic review

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World Journal of Pediatrics 2021年第6期17卷 674-675页

作者： Hong-Xi Zhang Jiang-hui cai Department of Pharmacy School of MedicineChengdu Women's and Children's Central HospitalUniversity of Electronic Science and Technology of ChinaChengdu 611731China

We read with great interest the review article by Ghodsi and colleagues(Volume 17,issue 3)[1].The authors aimed to evaluate the chest computed tomography(CT)findings in infants with confirmed coronavirus disease 2019(COVID-19)***,the tindings of Ghodsi et *** significance for physicians when determining the typical characteristics of *** agreeing with the conclusions made by the authors,we would like to draw their attention to a certain aspect.

关键词： tomography(CT) fir finding

Ultrastructure of neuronal-like cells differentiated from adult adipose-derived stromal cells

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Neural Regeneration Research 2010年第19期5卷 1456-1463页

作者： Changqing Ye Xiaodong Yuan hui Liu Yanan cai Department of Neurology Kailuan General Hospital North China Coal Medical University Tangshan 063000 Hebei Province China

β-mercaptoethanol induces in vitro adult adipose-derived stromal cells （ADSCs） to differentiate into neurons. However, the ultrastructural features of the differentiated neuronal-like cells remain unknown. In the present study, inverted phase contrast microscopy was utilized to observe β-mercaptoethanol-induced differentiation of neuronal-like cells from human ADSCs, and immunocytochemistry and real-time polymerase chain reaction were employed to detect expression of a neural stem cells marker （nestin）, a neuronal marker （neuron-specific enolase）, and a glial marker （glial fibrillary acidic protein）. In addition, ultrastructure of neuronal-like cells was observed by transmission election microscopy. Results revealed highest expression rate of nestin and neuron-specific enolase at 3 and 5 hours following induced differentiation; cells in the 5-hour induction group exhibited a neuronal-specific structure, i.e., Nissl bodies. However, when induction solution was replaced by complete culture medium after 8-hour induction, the differentiated cells reverted to the fibroblast-like morphology from day 1. These results demonstrate that β-mercaptoethanol-induced ADSCs induced differentiation into neural stem cells, followed by morphology of neuronal-like cells. However, this differentiation state was not stable.

关键词： human adipose-derived stromal cells β-mercaptoethanol induction in vitro differentiation ultrastructure neural stem cells neural regeneration