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Cyclic Bearing Mechanism of Suction Caissons Supporting Offshore Wind Turbines in Clay

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China Ocean Engineering 2021年第1期35卷 135-144页

作者： WANG Teng yu shi-wen LIU wen-long BAO Xing-xian LIU Jun-wei School of Petroleum Engineering China University of Petroleum(East China)Qingdao 266580China Department of Infrastructure Engineering The University of MelbourneParkville VIC3010Australia School of Civil Engineering Qingdao University of TechnologyQingdao 266520China

The bearing behavior of suction caissons supporting offshore wind turbines under two-way cyclic lateral loading and dead load in clay was investigated with consideration of soil strength degradation and adhesive interface friction between caisson walls and heterogeneous clay using the finite-element package *** ABAQUS built-in user subroutine was programmed to calculate the adhesive interface friction between clay and caisson *** results of parametric studies showed that the degradation of bearing capacity could be aggravated by the decrease of the aspect *** offset between the rotation point of the soil inside the caisson and the central axis of the caisson increased with the increasing vertical load and number of *** linearly increasing strength profile and adhesive interface led to the formation of an inverted spoon failure zone inside the *** settlement-rotation curves in each cycle moved downwards with increasing number of cycles due to the soil strength degradation.

关键词： suction caisson adhesive contact cyclic loading strain softening clay

Nonlinear Waves in a Cigar-Shaped Bose-Einstein Condensate with Dissipation

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Communications in Theoretical Physics 2008年第1期49卷 119-122页

作者： YANG Xiao-Xian shi yu-Ren DUAN wen-Shan College of Physics and Electronic Engineering Northwest Normal University Lanzhou 730070 China

We discuss the possible nonlinear waves of atomic matter waves in a cigar-shaped Bose-Einstein condensatewith dissipation. The waves can be described by a KdV-type equation. The KdV-type equation has a solitary wave solution. The amplitude, speed, and width of the wave vary exponentially with time t. The dissipative term of ~/ plays an important role for the wave amplitude, speed, and width. Comparisons have been given between the analytical solutions and the numerical results. It is shown that both are in good agreement.

关键词： Bose Einstein condensate GP equation KdV-type equation

Synthesis and Photovoltaic Properties of Non-fullerene Solution Processable Small Molecule Acceptors

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Chemical Research in Chinese Universities 2013年第3期29卷 596-599页

作者： LI Hui LIU Zhao-yang ZHANG Xiao-yu YAO shi-yu wen Shan-peng TIAN wen-jing State Key Laboratory of Supramolecular Structure and Materials Jilin University Changchun 130012 P. R. China

Two non-fullerene small molecules, BT-C6 and BT-C12, based on the vinylene-linked benzothiadiazole-thiophene（BT） moiety flanked with 2-（3,5,5-trimethylcyclohex-2-en-l-ylidene）malononitrile have been synthesized and characterized by solution/thin film UV-Vis absorption, photoluminescence（PL）, and cyclic voltammetry（CV） measurements. The two molecules show intense absorption bands in a wide range from 300 nm to 700 nm and low optical band- gaps for BT-C6（1.60 eV） and for BT-C12（1.67 eV）. The lowest unoccupied molecular orbital（LUMO） levels of both the molecules are relatively higher than that of [6,6]-phenyl C61 butyric acid methyl ester（PCBM）, promising high open circuit voltage（Voc） for photovoltaic application. Bulk heterojunction（BHJ） solar cells with poly（3-hexylthiophene）（P3HT） as the electron donor and the two molecules as the acceptors were fabricated. Under 100 mW/cm2 AM 1.5 G illumination, the devices based on P3HT：BT-C6（1：1, mass ratio） show a power conversion efficiency（PCE） of 0.67%, a short-circuit current（Jsc） of 1.63 mA/cm2, an open circuit voltage（Vow） of 0.74 V, and a fill factor（FF） of 0.56.

关键词： Non-fullerene small molecule Electron acceptor Bulk heterojunction

Total synthesis of human urotension-Ⅱ by microwave-assisted solid phase method

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Chinese Chemical Letters 2007年第8期18卷 902-904页

作者： Hui Bin Zhang yu shi Chi wen Long Huang Shuai Jian Ni Center of Drug Research China Pharmaceutical University Nanjing 210009 China

Human urotension-Ⅱ was synthesized efficiently on Wang resin under microwave irradiation using Fmoc/tBu orthogonal protection strategy. Disulphide bridge was formed on solid phase with the irradiation of microwave, then the whole peptide was cleaved from the resin. The purity of crude peptide cyclized under microwave irradiation was higher than that under room temperature.

关键词： Human urotension-Ⅱ Microwave irradiation Solid phase Disulphide bridge

Theoretical study on the reaction of VS^+(~3∑^-,~1Γ)with CO

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Chinese Chemical Letters 2008年第8期19卷 1008-1011页

作者： shi wen yu Li Qing Yin Li Feng Yao Ming Li Xiao Guang Xie Department of Chemistry Yunnan University Kunming 650091 China

Two possible reaction mechanisms of VS^＋（^3∑^-, 1^Г） with CO in the gas phase have been studied by using B3LYP/TZVP and CCSD（T）/6-311＋G （3df, 3pd） methods： the O/S exchange reaction （VS^＋＋CO→VO^＋＋CS） and the S-transfer reaction （VS^＋＋ CO → V^＋＋ COS）. The two reactions proceed via two-step and one-step mechanism, respectively. The barriers of the triplet and singlet PESs are 30.6 and 50.9 kcal/mol, respectively, for O/S exchange reaction and 7.3 and 50.2 kcal/mol, respectively, for the S-transfer reaction. The results indicate that the triplet ground state reaction is more favorable, and the S-transfer reaction is more favorable than the O/S exchange reaction, which is in good agreement with the experimental observation.

关键词： Vanadium sulfide ion CO Reaction CCSD(T)

Effect of Polynomial Expressed Distribution Dust Particles for Unmagnetized Two-Ion-Temperature Dusty Plasma

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Communications in Theoretical Physics 2009年第8期52卷 346-350页

作者： HE Guang-Jun LI Xiao-Li LIN Mai-Mai shi yu-Ren DUAN wen-Shan Department of Physics Northwest Normal University Lanzhou 730070 China

Linear dispersion relation for linear wave and a Kadomtsev-Petviashvili (KP) equation for nonlinearwave are given for the unmagnetized two-ion-temperature cold dusty plasma with many different dust grain *** numerical results of variations of linear dispersion with respect to the different dust size distribution are ***,how the amplitude,width,and propagation velocity of solitary wave vary vs different dust size distribution isalso studied numerically in this paper.

关键词： polynomial expressed dust size distribution linear dispersion relation Kadomtsev-Petviashvili (KP) equation

Theoretical study on the reaction of NbS^+(~3∑^-,~1Γ) with CO

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Chinese Chemical Letters 2009年第6期20卷 755-758页

作者： shi wen yu TaoHong Li Xiao Mei Yang Li Qing Yin Li Feng Yao Xiao Guang Xie Department of Chemistry Yunnan University Kunming 650091 China Department of Chemistry Qujing Normal University Qujing 650011 China Faculty of Chemistry Southwest Forestry University Kunming 650224 China yunnan University of Traditional Chinese Medicine Kunming 650091 China

Two possible reactions of NbS＋（3∑^-, 1Г） with CO in the gas phase have been studied by using B3LYP and CCSD（T） methods： the O/S exchange reaction （NbS^＋＋ CO → NbO^＋＋ CS） and the S-transfer reaction （NbS＋＋ CO → Nb^＋＋ COS）. The two reactions have a one-step mechanism. The barriers of the O/S exchange reaction on the triplet and singlet surfaces are 51.2 and 52.4 kcal/mol, respectively, and the barriers of the S-transfer reaction are 58.3 and 78.0 kcal/mol, respectively. The results indicate that the Stransfer and the O/S exchange reaction of the 3∑^- ground state of NbS＋ are competing, but, for the S-transfer reaction, the 1F exited state is more reactive. The differences between the reactions of NbS＋（3∑^_, 1Г） and VS＋（3∑^_, 1Г） are discussed.

关键词： Niobium sulfide cation CO Reaction CCSD(T)

A computational study on the gas phase reaction of Os^+ with N_2O

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Chinese Chemical Letters 2009年第8期20卷 1010-1014页

作者： Tao Hong Li Chuan Ming Wang shi wen yu Xiang Yi Liu Hui Fu Xiao Guang Xie Faculty of Chemistry Southwest Forestry University Kunming 650224 China Department of Biology Honghe University Menzi 661100 PR China Department of Chemistryl Qujing Normal University Qujing 650011 China Department of Chemistry Yunnan University Kunming 650091 China

The reaction of Os^＋（^6D, ^4F） with N20 has been investigated at B3LYP/TZVP and CCSD（T）/6-311＋G^＊ levels of theory. The mechanisms corresponding to O-atom and N-atom transfer reactions have been revealed. It was found that on the sextet reaction surface both the O-atom and N-atom transfer reactions undergo through direct-abstraction mechanism, leading to the formation of OsO^＋ and OsN^＋, whereas on quartet surface the two reactions undergo through O-N bond or N-N bond insertion mechanism. The calculated energetics shows that the reactions on the sextet surface have notable energy barriers, whereas the reactions on quartet surface are barrierless. ？2009 Xiao Guang Xie. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.

关键词： O-Atom transfer N-Atom transfer Abstraction Insertion

Cronobacter Carriage in Neonate and Adult Intestinal Tracts

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Biomedical and Environmental Sciences 2013年第10期26卷 861-864页

作者： LIU Hui CUI Jing Hua CUI Zhi Gang HU Guang Chun YANG yue Lian LI Jian shi yu wen Jinan Municipal Center for Disease Control and Prevention State Key Laboratory for Communicable Disease Prevention and Control National Institute for Communicable Disease Control and PreventionChinese Center for Disease Control and Prevention

A total of 7 Cronobocter strains were isolated from 703 fecal samples collected in Jinan from June 13 to December 30, 2011, with the positive rate of Cronobacter spp. being 1.0% （95% confidence interval 0.6%-1.4%）. Three Cronobacter sakazakii stains were isolated from 157 fecal samples of healthy neonates （95% confidence interval 0.4%-5.5%）. This number was slightly higher than that isolated from 273 fecal samples of healthy adults, in which 1 strain of C. sakazakii and 1 strain of Cronobacter malonaticus were isolated, and that from 173 fecal samples of adults with acute diarrhea, in which 1 strain of C sakazakii and 1 strain of C. malonaticus were isolated, but the differences were not statistically significant （P〉O.05）. The Cronobocter isolates were all from different genetic sources. It should be noted that Cronobacter carriage may cause infection under certain conditions, especially in neonates.

关键词： Cronobacter Carriage in Neonate and Adult Intestinal Tracts