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Comparative Molecular Field Analysis on a Set of New Herbicidal Sulfonylurea Compounds

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Chinese Chemical Letters 1997年第6期8卷 503-504页

作者： Liu, J wang, X Ma, y Li, ZM Lai, CM Jia, GF wang, LX NANKAI UNIV STATE LAB ELEMENTOORGAN CHEMELEMENTOORGAN CHEM INSTTIANJIN 300071PEOPLES R CHINA

In this paper Comparative Molecular Field Analysis (CoMFA) method was applied to study the three-dimensional quantitative structure activity relationship (3D-QSAR) on a set of new herbicidal sulfonylureas. we optimize... 详细信息

关键词： Comparative Molecular Field Analysis on a Set of New Herbicidal Sulfonylurea Compounds

临床前肥厚型心肌病的临床表现谱：肌小节基因突变携带者的特征

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中华心血管病杂志 2009年第4期37卷 289-293页

作者： Carolyn y Ho Boston MA 02115 Cardiovascular Division Brigham and Women's Hospital

肥厚型心肌病研究历史已有50余年，近年研究发现：（1）50％～70％的肥厚型心肌病由基因突变所致，基因诊断已经获美国FDA批准，使临床前诊断成为可能。（2）置入性心脏除颤器的临床应用，挽救了一大批有猝死危险的肥厚型心肌病患者，... 详细信息

肥厚型心肌病研究历史已有50余年，近年研究发现：（1）50％～70％的肥厚型心肌病由基因突变所致，基因诊断已经获美国FDA批准，使临床前诊断成为可能。（2）置入性心脏除颤器的临床应用，挽救了一大批有猝死危险的肥厚型心肌病患者，使大多数患者的寿命几乎与正常人相同。

关键词：肥厚型心肌病基因突变临床前临床表现携带者肌小节基因诊断 FDA批准

Misorientation dependent thermal condition-solute field cooperative effect on competitive grain growth in the converging case during directional solidification of a nickel-base superalloy

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Journal of Materials Science & Technology 2022年第1期96卷 151-159页

作者： X.B.Meng J.G.Li C.N.Jing J.D.Liu S.y.Ma J.J.Liang C.w.Zhang M.wang B.T.Tang T.Lin J.L.Chen X.L.Zhang Q.Li School of Mechanical and Automotive Engineering Qilu University of Technology(Shandong Academy of Sciences)Jinan 250353China Institute of Metal Research Chinese Academy of SciencesShenyang110016China School of Materials Science and Engineering Shandong Jianzhu UniversityJinan 250014China AECC Shenyang Liming Aero-Engine Co. LTD.Shenyang110043China College of Material Science and Engineering North Minzu UniversityYinchuan 750021China Faculty of electro-mechanical information Weifang University of Science and TechnologyShouguang262700China

Nowadays,thermal condition and solute field are considered as the potential dominant factors controlling competitive grain growth during directional solidification ***,the controlling modes and critical conditions of competitive grain growth have been drastically debated over the past two *** this work,thermal condition and solute field are combined to study the competitive grain growth in the converging case by experimental observation and numerical simulation of bicrystal *** find the competitive grain growth is controlled by the cooperative effect of thermal condition and solute field,and the controlling modes are related to the bicrystal misorientation between favorably and unfavorably oriented *** the unfavorably oriented grain is low misoriented,unfavorably oriented grain dominates grain selection,and the competitive grain growth performs as solute field ***,with the increase of unfavorably oriented grain’s misorientation,the grain selection converts into favorably oriented grain domination,and the competitive grain growth changes to thermal condition *** explain these abnormal transformation phenomena,we propose a misorientation dependent thermal condition-solute field cooperative domination model and identify the critical conditions by a critical misorientation(θ_(cm)).According to dynamic equation of dendrite growth,we calculate the critical misorientationθ;to prove this *** theoretical calculation results agree well with the experimental results.

关键词： Competitive grain growth Cooperative effect Thermal condition Solute field Critical misorientation Unusual overgrowth Abnormal transformation

Predicting early graft loss in pancreas transplantation using novel imaging techniques: are we there yet?

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Hepatobiliary Surgery and Nutrition 2023年第2期12卷 276-279页

作者： Samrat Ray Trevor w.Reichman Ajmera Transplant Centre Toronto General HospitalUniversity Health NetworkTorontoONCanada Department of Surgery University of TorontoTorontoONCanada

Since its inception in 1966 at the University of Minnesota,pancreas transplantation has witnessed major milestones in evolution of surgical techniques,immunosuppression regimen and more recently,machine perfusion for ... 详细信息

关键词： Hyperspectral imaging(HSI) pancreas transplantation duodenal leaks early graft loss

Superconductivity Bordering Rashba Type Topological Transition

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Superconductivity Bordering Rashba Type Topological Transiti...

Correlation between color parameters and bioactive compound content during cocoa seed transformation under controlled process conditions

中国晶体学会第六届学术年会暨会员代表大会（极端条件晶体材料分会）

作者： M.L.Jin F.Sun L.y.Xing S.J.Zhang S.M.Feng P.P.Kong w.M.Li X.C.wang J.L.Zhu y.w.Long H.y.Bai C.Z.Gu R.C.yu w.G.yang G.y.Shen y.S.Zhao H.K.Mao C.Q.Jin Beijing National Laboratory for Condensed Matter Physics and Institute of Physics Chinese Academy of Sciences HiPSEC Department of Physics and AstronomyUniversity of Nevada at Las Vegas High Pressure Synergetic Consortium (HPSynC) & High Pressure Collaborative Access Team (HPCAT) Geophysical LaboratoryCarnegie Institution of Washington Center for High Pressure Science & Technology Advanced Research (HPSTAR)

Strong spin orbital interaction(SOI)can induce unique quantum phenomena such as topological insulators,the Rashba effect,or p-wave *** these three quantum phenomena into a single compound has important scientific *** ...

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FOOD BIOSCIENCE 2023年第3期53卷 544-553页

作者： Becerra, Lili Dahiana Quintanilla-Carvajal, Maria Ximena Escobar, Sebastian Ruiz, Ruth y. Univ Sabana Fac Ingn Doctorado Biociencias Campus Univ Puente ComunKm 7 Autopista Norte Bogo Chia Cundinamarca Colombia Univ Sabana Fac Ingn Grp Invest Proc Agroind Campus Univ Puente ComunKm Autopista Norte Bogota Chia Cundinamarca Colombia Corp Colombiana Invest Agr Agrosavia Ctr Invest Palmira Proc & Qual Cocoa Lab Palmira Valle Del Cauca Colombia

The quality demanded by consumers in the cocoa sector has led to carrying out the postharvest transformation of cocoa, directing efforts to highlight properties of cocoa beans, such as the content of bioactive compounds, due to its beneficial effects on health, as well as its color, which varies from the typical brown color to the recently developed red-pink hues. This work aims to establish a correlation between the color parameters of a cocoa matrix obtained during the transformation of cocoa seeds under controlled process conditions (temperature, organic acid, and its concentration, and time) and the flavan-3-ols content (catechin, epicatechin, and epigallocatechin), methylxanthines content (theobromine, caffeine), and total phenolic content (TPC) through image analysis of color. The results showed that the content of flavan-3-ols and methylxanthines decreased as the controlled transformation advanced. However, the content of these bioactive compounds is retained by applying mild temperature conditions (30 degrees C) and low concentrations of organic acid (1 g/L) to transform cocoa seeds. Furthermore, the color parameters respond to changes in the internal pH of the seeds, and the red-pink hues are favored when using high concentrations of organic acid (30 g/L). Based on these findings, it was possible to establish a correlation between epigallocatechin content and four color parameters (a*, b*, h*ab and C*ab) through a multiple linear regression model. In this way, color image analysis could be an appropriate alternative to predict the concentration of quality-related compounds in cocoa matrices.

关键词： CIELab color space Bioactive compounds Cocoa beans Controlled cocoa postharvest transformation Organic acids

wide Absorption Spectrum Measuring Methods by DFB-LDs in water Vapor Detection System

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Photonic Sensors 2014年第3期4卷 230-235页

作者： y. N. LIU J. CHANG J. LIAN Q. wANG G. P. LV w. J. wANG Z. LIU X. Z. LIU S. S. ZHANG Z. L. wANG S. JIANG C. G. ZHU w. wEI B.N. SUN School of Information Science and Engineering and Shandong Provincial Key Laboratory of Laser Technology andApplication Shandong University Jinan 250100 China Institute of Automation Shandong Academy of Sciences Jinan 250014 China

Two measuring methods of the wide absorption spectrum by distributed feedback laser diodes （DFB-LDs） are presented in detecting the water vapor absorption line. One is the subsection scanning method, and it takes advantage of the wide spectrum tuning range by the temperature modulation and fast spectrum tuning speed by current modulation. Specifically, this method is realized by dividing a target spectral region into several sections which correspond to the specific temperature of DFB-LD, scanning every section by current modulation for hundreds times, and averaging the data to raise the signal to noise ratio （SNR）, then combining all sections to get the whole spectrum. An accuracy of 10ppmv had been obtained in the measurement of water vapor with a 10-cm path length by this method. Another is data fitting method, based on the absorption line-shape function; the absorption line can be described by fitting with partial measured data. The fitting absorption line was fitted well with the measured data, and the square of correlation coefficient （R-square） was no less than 0.99.

关键词： DFB-LD wide spectrum subsection scanning data fitting water vapor detection

Position and Velocity Time Delay for Suppression Vibrations of a Hybrid Rayleigh-Van der Pol-Duffing Oscillator

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Sound & Vibration 2020年第3期54卷 149-161页

作者： y.A.Amer A.T.El-Sayed M.N.Abd El-Salam Mathematics Department Science FacultyZagazig UniversityZagazigEgypt Basic Sciences Department Modern Academy for Engineering and TechnologyCairoEgypt Basic Sciences Department Higher Technological Institute10th of Ramadan CityEgypt

In this paper,we used time delay feedback to minimize the vibrations of a hybrid Rayleigh–van der Pol–Duffing *** system is a one-degree-offreedom containing the cubic and fifth nonlinear terms and an external *** applied the multiple scales method to get the solution from first *** and numerically,we studied the system before and after adding time delay feedback at the primary resonance case(ffi!).we used MATLAB program to simulate the efficacy of different parameters and the time delay on the main system.

关键词： Position time delay feedback velocity time delay feedback multiple scales method resonance cases

PARTICULATE SUSPENSION FLOw INDUCED By SINUSOIDAL PERISTALTIC wAVES THROUGH ECCENTRIC CyLINDERS： THREAD ANNULAR

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International Journal of Biomathematics 2013年第4期6卷 113-137页

作者： KH. S. MEKHEIMER y. ABD ELMABOUD A. I. ABDELLATEEF Mathematics Department Faculty of Science Al-Azhar University Nasr City 11448 Cairo Egypt Mathematics Department Faculty of Science Tail University Hawia (888) Tail Saudi Arabia Mathematics Department Faculty of Science and Arts Khulais King Abdulaziz University (KAU) Saudi Arabia Mathematics Department Faculty of Science Al-Azhar University (Assiut Branch) Assiut Egypt Basic Science Department Higher Institute of Engineering Shorouk City Cairo Egypt

This paper describes a new model for obtaining analytical solutions of peristaltic flow through eccentric annuli. A mathematical model of peristaltic pumping of a fluid mixture （as blood model） in a circular eccentric cylinders is presented and it is motivated due to the fact that thread injection is a promising method for placing medical implants within the human body with minimum surgical trauma. For the eccentric annuli, the inner cylinder is rigid and moving with a constant velocity V, and the outer one is hollow flexible cylinder that has a sinusoidal wave traveling down its wall. The coupled differential equations for both the fluid and the particle phases have been solved by using two methods and the expressions for the velocity distribution of fluid and particle phase, flow rate, pressure drop, friction forces at the inner and outer cylinders have been derived. The results obtained are discussed in brief. The significance of the particle concentration and the eccentricity parameter as well as the nature of the basic flow has been well explained.

关键词： Eccentric annulus flows particle fluid suspension peristalsis endoscope