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Digitalized Accurate Modeling of SPCB with Multi-spiral Surface Based on CPC Algorithm

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Chinese Journal of Mechanical Engineering 2015年第5期28卷 1039-1047页

作者： HUANG Yanhua gu Lizhi College of Mechanical Engineering and Automation Huaqiao University

The main methods of the existing multi-spiral surface geometry modeling include spatial analytic geometry algorithms, graphical method, interpolation and approximation algorithms. However, there are some shortcomings in these modeling methods, such as large amount of calculation, complex process, visible errors, and so on. The above methods have, to some extent, restricted the design and manufacture of the premium and high-precision products with spiral surface considerably. This paper introduces the concepts of the spatially parallel coupling with multi-spiral surface and spatially parallel coupling body. The typical geometry and topological features of each spiral surface forming the multi-spiral surface body are determined, by using the extraction principle of datum point cluster, the algorithm of coupling point cluster by removing singular point, and the ＂spatially parallel coupling＂ principle based on the non-uniform B-spline for each spiral surface. The orientation and quantitative relationships of datum point cluster and coupling point cluster in Euclidean space are determined accurately and in digital description and expression, coupling coalescence of the surfaces with multi-coupling point clusters under the Pro/E environment. The digitally accurate modeling of spatially parallel coupling body with multi-spiral surface is realized. The smooth and fairing processing is done to the three-blade end-milling cutter＇s end section area by applying the principle of spatially parallel coupling with multi-spiral surface, and the alternative entity model is processed in the four axis machining center after the end mill is disposed. And the algorithm is verified and then applied effectively to the transition area among the multi-spiral surface. The proposed model and algorithms may be used in design and manufacture of the multi-spiral surface body products, as well as in solving essentially the problems of considerable modeling errors in computer graphics and engineeri

关键词： coupling point cluster algorithm topological features multi-spiral surface coupling spatially parallel coupling body datum point cluster

Low-Temperature Optical Spectra and Zero-Phonon Transitions of Color Centers in γ-Rayed Sodium Fluoride Crystals

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Chinese Physics Letters 1993年第9期10卷 543-546页

作者： gu Hongen Department of Physics TUuijin UniversityTianjin 300072

A lot of narrow *** R_(2),R^(+),N_(1),N^(-) and some other un kowll centers have been observed in γ-raycd pure and doped sodium fuoride crystals in the temperature range of 9-77 *** proper laser irradiation was used for strengthening the zero-phonon lines and the relative explanation was *** spectral properties and thermosta-bilities of the lines were in vestigated systematically at difcrent temperatures.

关键词： Transition narrow explanation

World Expo 2010 Pavilions Clustering Analysis Based on Self-Organizing Map

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Journal of Systems Science & Complexity 2016年第4期29卷 1089-1099页

作者： LI Qianqian gu Jifa Institute of Policy and Management Chinese Academy of SciencesBeijing 100190China Center for Interdisciplinary Studies of Natural and Social Sciences Chinese Academy of SciencesBeijing 100190China Academy of Mathematics and Systems Science Chinese Academy of SciencesBeijing 100190China

This paper reports the classification of 90 sample pavilions in Shanghai World Expo. An artificial intelligence based nonlinear clustering method known as Self-Organizing Map(SOM) has been used to classify expo pavilions. SOM is an efficient tool for visualization of multidimensional data. To conduct the classification, four characteristics namely Hurst exponent for queue length, Hurst exponent for waiting time, mean queue length and mean waiting time have been applied. The classification results show that Shanghai World Expo pavilions can be optimally classified into four classes. This result will shed light on further studies that how to manage the queue of World Expo pavilions in the future.

关键词： Pavilions clustering self-organizing map World Expo.

Initial-State Radiation in Inclusive Photon Spectroscopy from Electron-Positron Annihilation

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Chinese Physics Letters 1993年第6期10卷 325-328页

作者： gu Yifan Institute of High Energy Physics Academia SinicaBeijing 100039

We demonstrate that the effect of the initial-state radiation can be observed in the inclusive photon spectrum from electron-positron annihilation by careful analysis of the data collected in a detector optimized for high resolution measurement of *** present the first example of a photon line from radiative corrections of the J/ψ,resonance at total center-of-mass energy far above its *** also discuss potential applications of such effect in future electron-positron experiments.

关键词： positron correction annihilation

热处理对燕麦麸皮的消化特性及抗氧化特性的影响

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食品与发酵工业 2025年第1期51卷 216-222页

作者：顾启新苗颖付媛马浩媛张美莉内蒙古农业大学食品科学与工程学院内蒙古呼和浩特010018 内蒙古农业大学理学院内蒙古呼和浩特010018

研究旨在探究不同热处理方法对燕麦麸皮的消化特性和抗氧化特性的影响。以燕麦麸皮为原料,对燕麦麸皮进行了蒸制、热风干燥、微波和炒制处理,并测定了其溶解性、傅里叶红外光谱、总淀粉含量、淀粉水解率、淀粉消化片段、总酚含量以及羟... 详细信息

研究旨在探究不同热处理方法对燕麦麸皮的消化特性和抗氧化特性的影响。以燕麦麸皮为原料,对燕麦麸皮进行了蒸制、热风干燥、微波和炒制处理,并测定了其溶解性、傅里叶红外光谱、总淀粉含量、淀粉水解率、淀粉消化片段、总酚含量以及羟自由基、DPPH自由基和ABTS阳离子自由基清除能力。结果表明,几种热处理均可提高燕麦麸皮的水溶性,降低其吸水性,增强了其短程有序结构,并显著降低其总淀粉含量(P<0.05),其中炒制处理可使总淀粉含量降低29.79%,淀粉水解率增加,RS含量显著降低(P<0.05),而RDS和SDS含量增加;炒制处理燕麦麸皮提取液对羟自由基、DPPH自由基和ABTS阳离子自由基清除能力显著增加(P<0.05),分别增加至(48.84±3.19)%、(47.50±1.63)%和(95.01±1.63)%,增加了7.16%、3.76%和10.44%;炒制处理燕麦麸皮中总多酚含量由(226.68±9.67)mg/100 g增加至(268.04±8.94)mg/100 g,增加了18.25%,总多酚含量与抗氧化指标均呈正相关,炒制处理可有效提高燕麦麸皮的抗氧化能力。

关键词：燕麦麸皮热处理消化特性抗氧化特性

Computational pharmacological studies on cardiovascular disease by Qishen Yiqi Diwan

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Science China Chemistry 2009年第11期52卷 1871-1878页

作者： gu JiangYong YUAN gu ZHU YongHong XU XiaoJie Beijing National Laboratory for Molecular Sciences State Key Laboratory of Rare Earth Materials Chemistry and ApplicationsCollege of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871China Academy of Tasly Pharmaceutical Co. LTDTianjin 300410China

Computational pharmacological methods were used to study the distribution of 1729 compounds contained in a Chinese medicine,Qishen Yiqi Diwan,in chemical *** results show that most of these compounds have good drug-like *** docking was used to study the interactions between 1729 compounds of Qishen Yiqi Diwan and 26 drug targets related to cardiovascular disease and the distribution of 1729 compounds in drug-target *** results may shed light on the action mechanism and the search for the active compounds in Qishen Yiqi Diwan.

关键词： chemical space drug-target space molecular docking computational pharmacology

Hyperspherical Analysis of D- in a Quantum Well

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Communications in Theoretical Physics 2001年第10期36卷 491-496页

作者： gu Yun-Ting Department of Physics Guangxi University Nanning 530004 China

By introducing hyperspherical coordinates and assuming the quasiseparability of the hyperradius R from the angular variables Ω in the wavefunctions, we have solved the SchrSdinger equation for a D- center in two dime... 详细信息

关键词： impurity states, quantum wells

Genetic variations of the ADIPOQ gene and risk of prostate cancer in Chinese Han men

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Asian Journal of Andrology 2014年第6期16卷 878-883页

作者： Cheng-Yuan gu Department of Urology Fudan University Shanghai Cancer Center Shanghai China Department of Oncology Shanghai Medical College Fudan University Shanghai China Cancer Institute Fudan University Shanghai Cancer Center Shanghai China Ministry of Education Key Laboratory of Contemporary Anthropology and State Key Laboratory of Genetic Engineering School of life Sciences Fudan University Shanghai China Fudan-Taizhou Institute of Health Sciences Taizhou China Duke Cancer Institute Duke University Medical Center Durham North Carolina USA

Adiponectin secreted by adipose tissue has been implicated in prostate carcinogenesis. Genetic variations in ADIPOQare thought to influence the activity of adiponectin, thus relating to cancer occurrence. In this hospital-based case-control study of 917 prostate cancer （PCa） cases and 1036 cancer-free controls, we evaluated the association of single nucleotide polymorphisms in ADIPOQ with risk of PCa and adiponectin levels in Chinese Han men. Variants of ADIPOQ were genotyped by Taqman polymerase chain reaction method. The plasma adiponectin concentrations were measured by *** immunosorbent assay （ELISA） in a subset of cases and controls. We found that the ADIPOQ rs3774262 variant AA genotype was associated with both decreased PCa risk [adjusted odds ratio （OR）： 0.66, 95% confidence interval （CI） =0.48-0.92] and increased plasma adiponectin levels （P= 0.036 and 0,043）, with significant difference by tumor grade, clinical stage, and aggressiveness. A significant interaction between ADIPOQ rs3774262 and body mass index was observed in modifying the risk of PCa （P=6.7 × 10-3）. ADIPOQ rs266729 and rs182052 were not related to PCa risk or plasma adiponectin levels. Our data support that ADIPOQ rs3774262 may affect PCa risk in combination with plasma adiponectin levels in Chinese Han men. It may contribute to the molecular basis for the association between obesity and PCa.

关键词： adiponectin ADIPOQ polymorphism prostate cancer

Dirac Optical Potential of p-^14Be and Pronounced “Long-Tail” Shape

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Communications in Theoretical Physics 2005年第2X期44卷 337-342页

作者： gu Bai-Ping Department of Physics Nanjing University Nanjing 210008 China Department of Mathematics and Physics Nanjing University of Traditional Chinese Medicine Nanjing 210029 China Center of Theoretical Nuclear Physics National Laboratory of Heavy-Ion Accelerator Lanzhou 730000 China

The Dirac optical potential for p-14Be elastic scattering is evaluated by the relativistic impulse approximation. Each of the real part and the imaginary part of the potential shows a pronounced "long tail" for the proton elastic scattering from halo nucleus 14Be compared with the potentials for proton scattering from its adjacent nuclei 12C and 16O, which do not have halo structures. This kind of "long tail" phenomenon suggests another signature for halo nuclei.

关键词： RMF theory halo nuclei proton elastic scattering RIA Dirac optical potential