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Search Results: 1 - 10 of 23475 matches for " PI Ying-ying "
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catena-Poly[[diaquacobalt(II)]-μ-4,4′-[1,4-phenylenebis(oxy)]dibutanoato-κ4O,O′:O′′,O′′′]
Ying-Ying Zhao
Acta Crystallographica Section E , 2011, DOI: 10.1107/s1600536810053742
Abstract: In the title coordination polymer, [Co(C14H16O6)(H2O)2]n, the CoII ion, situated on a twofold rotation axis, is coordinated by four O atoms from two 4,4′-[1,4-phenylenebis(oxy)]dibutanoate (L) ligands and two water molecules in a highly distorted octahedral geometry. Each L ligand is situated on an inversion center and bridges two CoII atoms, forming a zigzag polymeric chain propagating in [10overline{1}]. Intermolecular O—H...O hydrogen bonds further consolidate the crystal packing.
Tetraaqua{1-[(1H-1,2,3-benzotriazol-1-yl)methyl]-1H-imidazole}sulfatomanganese(II) dihydrate
Ying Wang,Ying-Ying Sun
Acta Crystallographica Section E , 2011, DOI: 10.1107/s1600536811022197
Abstract: In the title complex, [Mn(SO4)(C10H9N5)(H2O)4]·2H2O, the Mn2+ cation is six-coordinated by one N atom from a 1-[(1H-1,2,3-benzotriazol-1-yl)methyl]-1H-imidazole ligand and five O atoms from one monodentate sulfate ligand and four water molecules in a distorted octahedral geometry. In the crystal, adjacent molecules are linked through O—H...O and O—H...N hydrogen bonds into a three-dimensional network.
Microstructure and Phase Behavior of Cationic Gemini/Anionic Polyelectrolyte/Water Ternary System
PI Ying-ying,SHANG Ya-zhuo,PENG Chang-jun,LIU Hong-lai,
皮瑛瑛
,尚亚卓,彭昌军,刘洪来

过程工程学报 , 2006,
Abstract: The microstructure of cationic gemini surfactant 1,6-bis(dodecyldimethylammonium) hexane dibromide C12H25(CH3)2N-(CH2)6-N(CH3)2C12H25·2Br] (12-6-12·2Br-) and oppositely charged polyelectrolyte poly(acrylic acid,sodium salt) (NaPA) in aqueous solution has been studied by using fluorescence, conductivity measurement, freeze-etching and TEM. The data obtained from fluorescence and conductivity measurement show that micelle-like or complex can form between the gemini surfactant (12-6-12.2Br-) and polyelectrolyte NaPA due to the static electric interaction and hydrophobic forces. Through freeze-etching and TEM, the microstructure of the mixture solution has been studied, which is consistent with the result from micropolarity. Comparing the fluorescence spectrum of system of dodecyltrimethylammonium bromide (DTAB) and NaPA with that of system of gemini surfactant (12-6-12.2Br-) and NaPA, it can be found that the interaction of (12-6-12.2Br-) and NaPA in aqueous solution has also been detected. It can be shown that the precipitate will transform into gel in higher NaPA concentration.
Study of Multimedia Technology in Posture Training for the Elderly  [PDF]
Chih-Chen Chen, De-Jou Hong, Shih-Ching Chen, Ying-Ying Shih, Yu-Luen Chen
Engineering (ENG) , 2013, DOI: 10.4236/eng.2013.510B010
Abstract:

Wrist diseases, also known as “mama hand”, “mouse hand” or “keyboard hand”, are commonly seen and easily over-looked symptoms in daily life. The diseases are mostly related to incorrect exercise or excessive force imposed on hands, leading to tenosynovitis or carpal tunnel syndrome. To alleviate the symptoms or even to recover, besides drug treatment, supplementary rehabilitation training is necessary. The rehabilitation process forces the affected wrist area to continually exercise in order to stimulate the self-repair signals sent to the affected area for partial restoration, if not all, of the supposed functions. In modern world, using information technology to improve the rehabilitation environment with better approaches has become a trend. In this study, software programs coded in C# and Flash are developed to work on the Bluetooth ball hardware to facilitate the rehabilitation. The basic principle is to use the reaction from the Bluetooth ball’s swaying or swinging to drive the movement of the objects on the computer screen, making the supposedly boring rehabilitation much more fun and vivid in the interactive multimedia environment, thus gaining better treatment effect. Also, RFID, Internet and databases can be integrated into this facility to provide patient identification and data storage for references in making rehabilitation training programs.

Novel object contour extraction: multi-scale edge detection based on bilateral filtering
新颖的物体轮廓提取:基于双边滤波的多级边缘检测

WU Ying-ying,LIU Qiao,
吴莹莹
,刘桥

计算机应用研究 , 2007,
Abstract: 提出了一种新颖的物体轮廓提取方法,即通过多级边缘检测来提取物体的主要边界。双边滤波器用来建立多级,同时Canny边缘算子相应地产生边缘图,组合边缘图构造出一幅多级图。次段被定义为边缘像素的连接结构,提取并连接这些次段可以构成闭合轮廓。最终图像中最相关的闭合轮廓被判定为真实的物体轮廓。实验结果表明,该物体轮廓提取方法具有较高的可靠性并且受噪声影响较小。
Bis[N-(1-naphthyl)ethylenediammonium] hexabromidoplumbate(II)
Yao Chen,Ying-Ying Zheng,Gang Wu,Mang Wang
Acta Crystallographica Section E , 2010, DOI: 10.1107/s1600536810008901
Abstract: The title compound, (C12H16N2)2[PbBr6], is an organic–inorganic salt, with two doubly protonated N-(1-naphthyl)ethylenediammonium cations and one octahedral hexabromidoplumbate(II) anion. The PbII atom is located on a centre of inversion. The crystal structure consists of alternating inorganic and organic layers parallel to the bc plane. Face-to-face aromatic stacking interactions [centroid–centroid distance = 3.505 (5) ] occur between parallel naphthalene systems in the organic layers, and N—H...Br hydrogen bonds between the cations and anions stabilize the crystal structure.
Poly[[μ2-2,2′-diethyl-1,1′-(butane-1,4-diyl)diimidazole-κ2N3:N3′](μ2-5-hydroxyisophthalato-κ2O1:O3)zinc]
Ying-Ying Liu,Xing Wang,Yong-Sheng Yan
Acta Crystallographica Section E , 2011, DOI: 10.1107/s1600536811039377
Abstract: In the title coordination polymer, [Zn(C8H4O5)(C14H22N4)]n, the ZnII cation is coordinated by an O2N2 donor set in a distorted tetrahedral geometry. The ZnII ions are linked by μ2-OH-bdc (OH-H2bdc = 5-hydroxyisophthalic acid) and bbie ligands [bbie = 2,2′-diethyl-1,1′-(butane-1,4-diyl)diimidazole], forming a two-dimensional layer parallel to the ab plane. The layers are further connected through intermolecular C—H...O and O—H...O hydrogen bonds, forming a three-dimensional supramolecular structure. In the bbie ligand, the two C atoms in the ethyl group are each disordered over two positions with a site-occupancy ratio of 0.69:0.31.
N1,N3-Bis(pyridin-3-ylmethyl)isophthalamide dihydrate
Ying-ying Dong,Xi-chuan Cao
Acta Crystallographica Section E , 2011, DOI: 10.1107/s1600536811031965
Abstract: The complete organic molecule in the title dihydrate, C20H22N4O4, is generated by crystallographic twofold symmetry, with two C atoms lying on the rotation axis. The symmetry unique pyridine ring forms a dihedral angle of 83.16 (8)° with the central benzene ring. In the crystal, intermolecular N—H...O, O—H...N and O—H...O hydrogen bonds connect the components into a two-dimensional network lying parallel to (101).
(2-Amino-5-chlorobenzenesulfonato)bis(triphenylphosphine)silver(I)
Hua Wu,Li-Li Gao,Ying-Ying Liu
Acta Crystallographica Section E , 2008, DOI: 10.1107/s1600536808002031
Abstract: The asymmetric unit of the title mononuclear compound, [Ag(C6H5ClNO3S)(C18H15P)2], contains four independent molecules. In each of the molecules, the AgI cation is three-coordinated by two triphenylphosphine ligands, and one N atom from a 2-amino-5-chlorobenzenesulfonate anion. The molecules are linked into a one-dimensional supramolecular structure by N—H...O hydrogen bonds.
The Existence of Positive Solutions of a Random Perturbations of the Ratio of Holling-rely on (n+1) Type Predator-Prey Systems
HUA Ying-ying,YANG Zhi-chun
Journal of Chongqing Normal University , 2011,
Abstract: In this paper, previous studies Holling -(n+1) random predator functional response system, the existence of positive solutions on the basis of further study this model is based on ratio-dependent theory, a class discussion based on the ratio-dependent Holling-(n+1) of random-type predator-prey system global existence of positive solutions. This model in random white noise interference environment, Lyapunov function method and through the help of formula ITO, detailed positive solutions that the system in a limited time, and it won't blast positive solution to the gobal existence.
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