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International Journal of Minerals,Metallurgy and Materials 2009年第1期16卷 119-123页

作者： Ting-feng Yi yan-rong zhu Xin-guo Hu School of Chemistry and Chemical Engineering Anhui University of Technology Maanshan 243002 China Department of Applied Chemistry Harbin Institute of Technology Harbin 150001 China

Powders of spinel LiLaxMn2-xO4 were successfully synthesized by the ultrasonic-assisted sol-gel （UASG） method. The structure and properties of LiLaxMn2-xO4 were examined by X-ray diffraction （XRD）, Fourier transform infrared （FT-IR） spectroscopy, scanning electronic microscopy （SEM）, galvanostatic charge-discharge test, and cyclic voltammetry （CV）. XRD results show that the La^3＋ can partially reptace Mn^3＋ in the spinel and the doped materials with La^3＋ have a larger lattice constant compared with pristine LiMn2O4. FT-IR indicates that the absorption peak of Mn^3＋-O and Mn^4＋- O bonds has a red and blue shift with the increase of doping lanthanum in LiLaxMn2-xO4, respectively. The charge-discharge test exhibits that the initial discharge capacity of LiLaxMn2-xO4 drops off, and the capacity retention increases gradually at C/5 discharge rate with the increase of doping lanthanum, and LiLa0.01Mn1.99O4 has a higher discharge capacity and a better cycling performance at 1C discharge rate. CV reveals that the doping La^3＋ is beneficial to the reversible extraction and intercalation of Li^＋ ions.

关键词： lithium ion battery cathode material lanthanum doping structure electrochemical performance

Lignan glucoside from Sinopodophyllum emodi and its cytotoxic activity

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Chinese Chemical Letters 2011年第2期22卷 181-184页

作者： Chang Qi Zhao yan yan zhu Shu Ying Chen Yukio Ogihara Beijing Key Lab of Gene Engineering Drugs & Biological Technology Key Lab for Cell Proliferation & Regulation Biology of Ministry of EducationCollege of Life SciencesBeijing Normal UniversityBeijing 100875China Faculty of Agronome and Biotechnology Yunnan Agriculture UniversityKunming 650201China Faculty of Pharmaceutical Sciences Nagoya City UniversityNagoya 467-8603Japan

A new lignan glycoside was isolated from the n-butanol extract of the roots and rhizomes of Sinopodophyllum *** the basis of spectral evidences,its structure was established and named as 4,5-didemethylpodophyllotoxin 7＇-O-β-D-glucopyranoside. This compound showed cytotoxicity against four human cancer cell lines（Hela,K562,SH-SY5Y and CNE） in vitro.

关键词： Sinopodophyllum emodi Berberidaceae 4,5-Didemethylpodophyllotoxin 7'-O-β-D-glucopyranoside Cytotoxicity

Solid-state phase transformation of TC11 titanium during unstable thermal cycling in laser melting deposition process

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Journal of Iron and Steel Research International 2019年第7期26卷 743-750页

作者： Xiao-dong Li Jin Liu yan-yan zhu Xu Cheng Dong Liu Ji-kui Zhang National Engineering Laboratory of Additive Manufacturing for Large Metallic Components and Engineering Research Center of Ministry of Education on Laser Direct Manufacturing for Large Metallic Components School of Materials Science and Engineering Beihang University Beijing 100191 China Beijing Yuding Additive Manufacturing Research Institute Co. Ltd. Beijing 100096 China School of Aircraft Design Beihang University Beijing 100191 China

Thermal cycling procedure during laser additive manufacturing (LAM) process causes the appearance of bright and dark patterns on the etched surface of TC11 alloy components. The formation mechanisms of these patterns and the solid-state transformation related to LAM process are systematically investigated with the predication of temperature fields using the finite element software ABAQUS. The results indicate that by increasing subsequent thermal cycles, the peak temperatures for every cycle decrease. When peak temperatures are above Tβ(phase transition temperature of β phase), which is 1010℃ in TC11 alloy, no pattern is observed. Meanwhile, a decrease in peak temperature leads to appearance of an ultrafine basket-weave α+β microstructure (dark contrast) with gradually increased amount of α colonies in the alloy. A special bimodal microstructure with ‘fork-like'α lamella appears in the layer when the peak temperatures of thermal cycles firstly fall into α+β dual-phase region. And this special bimodal microstructure gives a bright contrast and only appears at the region where the peak temperatures are below 970℃, leaving the rest region with a dark contrast. With the continuous increase in thermal cycles in α+β dual-phase region,α lamella gradually coarsens. After five thermal cycles in α+β two-phase region, no further changes in microstructure are observed, and the morphologies of α lamella in dark and bright regions are almost the same but with different amounts of α phase.

关键词： Thermal cycling Laser melting deposition TC11 Solid-state phase transformation Temperature field

Ferruginol alleviates inflammation in dextran sulfate sodium-induced colitis in mice through inhibiting COX-2, MMP-9 and NF-κB signaling

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Asian Pacific Journal of Tropical Biomedicine 2020年第7期10卷 308-315页

作者： Xiao-yan zhu Chun-Ling Zhang Yukiat Lin Min-yan Dang Department of Gastroenterology Jinan Central Hospital Affiliated to Shandong UniversityJinan250013Shandong ProvinceChina Department of Emergency Taian City Central HospitalTaian271000Shandong ProvinceChina Innoscience Research Sdn Bhd Subang Jaya47650SelangorMalaysia

Objective:To assess the anti-inflammatory efficacy of ferruginol on dextran sulfate sodium(DSS)stimulated ulcerative colitis ***:Ulcerative colitis was induced in C57 BL/6 J mice by administering 2%of DSS through drinking water for 7 *** mice in the treatment group were treated with DAA+50 mg/kg/day ferruginol *** the positive control group,sulfasalazine(50 mg/kg/day)was used alongside with *** induction,the bodyweight,character of stool and feces occult blood were recorded daily,the disease activity index was calculated,and the colon length,colon weight,and spleen weight were *** myeloperoxidase activity was assayed by ***(IL)-6,IL-1β,and tumor necrosis factor-αwere determined by ELISA method,and nuclear factor-κB,cyclooxygenase-2,matrix metalloproteinases-9,and inducible nitric oxide synthase by Western blotting ***:Ferruginol significantly increased the bodyweight,colon weight,colon length,and decreased disease activity index and spleen *** exhibited anti-inflammatory activity against DSS induced ulcerative colitis in mice by reducing the activities of myeloperoxidase,tumor necrosis factor-α,nuclear factor-κB,IL-1β,cyclooxygenase-2,matrix metalloproteinases-9,IL-6,and inducible nitric oxide ***:Ferruginol could be used to treat ulcerative colitis by attenuating the inflammation in colon cells and maintaining colonic mucosal barrier integrity.

关键词： Ferruginol Dextran sulfate sodium Inflammation Sulfasalazine Ucerative colitis

Privacy-Preserving Algorithms for Multiple Sensitive Attributes Satisfying t-Closeness

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Journal of Computer Science & Technology 2018年第6期33卷 1231-1242页

作者： Rong Wang yan zhu Tung-Shou Chen Chin-Chen Chang School of Information Science and Technology Southwest Jiaotong University Chengdu 610031 China Department of Computer Science and Information Engineering "National" Taichung University of Science and Technology Taichung 404 China Department of Information Engineering and Computer Science Feng Chia University Taichung 40724 China

Although k-anonymity is a good way of publishing microdata for research purposes, it cannot resist severalcommon attacks, such as attribute disclosure and the similarity attack. To resist these attacks, many refinements of k-anonymity have been proposed with t-closeness being one of the strictest privacy models. While most existing t-closenessmodels address the case in which the original data have only one single sensitive attribute, data with multiple sensitiveattributes are more common in practice. In this paper, we cover this gap with two proposed algorithms for multiple sensitiveattributes and make the published data satisfy t-closeness. Based on the observation that the values of the sensitive attributesin any equivalence class must be as spread as possible over the entire data to make the published data satisfy t-closeness,both of the algorithms use different methods to partition records into groups in terms of sensitive attributes. One uses aclustering method, while the other leverages the principal component analysis. Then, according to the similarity of quasi-identifier attributes, records are selected from different groups to construct an equivalence class, which will reduce the lossof information as much as possible during anonymization. Our proposed algorithms are evaluated using a real dataset. Theresults show that the average speed of the first proposed algorithm is slower than that of the second proposed algorithm butthe former can preserve more original information. In addition, compared with related approaches, both proposed algorithmscan achieve stronger protection of privacy and reduce less.

关键词： data privacy k-anonymity t-closeness multiple sensitive attribute

In Situ TiC/FeCrNiCu High-Entropy Alloy Matrix Composites:Reaction Mechanism,Microstructure and Mechanical Properties

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Acta Metallurgica Sinica(English Letters) 2020年第8期33卷 1091-1102页

作者： Hao Wu Si-Rui Huang Cheng-yan zhu Ji-Feng Zhang He-Guo zhu Zong-Han Xie College of Materials Science and Engineering Nanjing University of Science and TechnologyNanjing 210094China School of Mechanical Engineering University of AdelaideSA 5005Australia School of Engineering Edith Cowan UniversityJoondalupWA 6027Australia

In situ TiC particles-reinforced FeCrNiCu high-entropy alloy matrix composites were prepared by vacuum induction melting *** reaction mechanisms of the mixed powder(Ti,Cu and C)were analyzed,and the mechanical properties of resultant composites were ***4Tiwere formed in the reaction of Cu and Ti when the temperature rose to 1160 *** the temperature further increased to 1182 K,newly formed Cu4Tireacted with C to give rise to TiC particles as reinforcement *** apparent activation energy for these two reactions was calculated to be 578.7 kJ/mol and 1443.2 kJ/mol,*** hardness,tensile yield strength and ultimate tensile strength of the 15 vol%TiC/FeCrNiCu composite are 797.3 HV,605.1 MPa and 769.2 MPa,respectively,representing an increase by 126.9%,65.9%and 36.0%as compared to the FeCrNiCu high-entropy base alloy at room ***,the elongation-to-failure is reduced from 21.5 to 6.1%with the formation of TiC *** was revealed that Orowan mechanism,dislocation strengthening and load-bearing effect are key factors responsible for a marked increase in the hardness and strength of the high-entropy alloy matrix composites.

关键词： High-entropy alloy matrix composite TiC particle Reaction mechanism Mechanical properties Strengthening mechanism

Giant struma ovarii with pseudo-Meigs’syndrome and raised cancer antigen-125 levels:A case report

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World Journal of Clinical Cases 2022年第30期10卷 11155-11161页

作者： yan Liu Gao-yan Tang Lu Liu Hui-Min Sun Hai-yan zhu Department of Gynecology Weifang People’s HospitalWeifang 261032Shandong ProvinceChina Department of Oncology Weifang People’s HospitalWeifang 261032Shandong ProvinceChina Department of Pathology Weifang People’s HospitalWeifang 261032Shandong ProvinceChina

BACKGROUND Struma ovarii is a type of monodermal mature teratoma composed entirely or mainly of thyroid tissue,accounting for 1%to 3%of all ovarian teratomas and 0.3%to 1.0%of all ovarian *** which,struma ovarii with ascites and pleural effusion,called pseudo-Meigs’syndrome and raised cancer antigen-125levels(CA 125)is even *** SUMMARY This paper reports the diagnosis and treatment of a patient of struma ovarii with pseudo-Meigs’syndrome,presenting with the clinical features of ovarian carcinoma:Complex pelvic mass,gross ascites,right pleural effusion and markedly elevated serum CA 125 *** the operation,a cystic-solid mass about 20cm×10 cm×5 cm in the right adnexa and a solid mass with the size of 3 cm×2cm×0.1 cm in the left ovary were *** underwent right adnexectomy and resection of the left ovarian mass and histopathology revealed a mature leftsided ovarian teratoma and struma ovarii of right adnexal *** 1-year follow-up,the patient recovered well,tumor markers and other indicators returned to *** The diagnosis and treatment process of this case suggests that the clinical symptoms of struma ovarii with pseudo-Meigs’syndrome are lack specificity,which is easily *** should improve the understanding of this disease,enhance the awareness of early screening,and improve the level of diagnosis and treatment.

关键词： Struma ovarii pseudo-Meigs’syndrome Ascites Pleural effusion Cancer antigen-125 Case report

Dual-mode broadcast encryption

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Science China(Information Sciences) 2018年第11期61卷 226-228页

作者： yan zhu Ruyun YU E CHEN Dijiang HUANG School of Computer and Communication Engineering University of Science and Technology Beijing School of Computing Informatics and Decision Systems Engineering Arizona State University

Broadcast encryption (BE) is a technique to implement secure group-oriented communication. The concept of broadcast encryption was firstly introduced by Fiat and Naor [1]. In a BE system, a broadcaster firstly chooses a receiver set and encrypts messages, and then broadcasts the ciphertext to all the users in the system while only the users in the chosen set can decrypt the ***. The existing broadcast encryption system can be divided into two categories:

关键词： BE

The Distribution of Surnames in Xiantao City through Isonymy

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Journal of Geodesy and Geoinformation Science 2024年第2期7卷 52-65页

作者： ZHANG Jingjing zhu yan XIAO Hong College of Chinese Language and Literature Wuhan UniversityWuhan 430072China College of Literature and Communication China Three Gorges UniversityYichang 443002China School of Foreign Languages China University of GeosciencesWuhan 430072China

The population migration in Hubei Province was frequent in history,accompanied by the migration of surnames,so it is important to study their population *** take Xiantao City as an example to explore the isonymic structure of small and medium-sized cities in *** surname distributions of 223327 residents registered in 2013 were analyzed in 5 towns and 105 villages of *** number of different surnames found was *** for surnames,theα-value reflects the influence of ethnic composition on the abundance of *** correlation between the isonymic distance and the geographic distance between villages was calculated and indicated that Euclidean distance was weakly correlated with the geographic distance(r=0.177±0.012),and the isonymic distance increased with the geographical ***,the dendrogram and PCA built from the matrix of Euclidean distances between villages identified a main surname differentiation between the urban and rural areas.

关键词： Xiantao City surname distribution isonymy isolation by distance urban and rural areas

Copper modified platinum electrode for amperometric detection of spectinomycin sulfate by anion-exchange chromatography

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Chinese Chemical Letters 2009年第10期20卷 1245-1247页

作者： Ling Ling Xi Pei Min Zhang yan zhu Department of Chemistry Xixi Campus Zhejiang University Hangzhou 310028 China

A La^3＋-Cu/Pt modified electrode was fabricated by electrodepositing process in CuS04 solution by adding a small amount of lanthium compound, and it was employed for direct current （DC） amperometric detection of spectinomycin by anion-exchange chromatography. Without derivatization, this method can simultaneously determine the main component and impurities in spectinomycin pharmaceutical raw material. Ease of preparation, being applied in DC detection mode and good catalytic stability confirmed the interests of this modified electrode as amperometric sensor for the determination of spectinomycin.

关键词： Copper/platinum chemically modified electrode High performance anion-exchange chromatography Direct current amperometricdetection Spectinomycin