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Vertically grown MoS_(2)nanosheets on graphene with defect-rich structure for efficient sodium storage

Rare Metals 2024年第3期43卷 1062-1071页

作者： Ying wang Jia-Peng He Han-qing Pan qing-Peng wang Lei Zhang Yong-Chang Liu qing-hong wang School of Chemistry&Materials Science Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional MaterialsJiangsu Normal UniversityXuzhou221116China Institute of Biopharmaceutical Research Liaocheng UniversityLiaocheng252059China Beijing Advanced Innovation Center for Materials Genome Engineering Institute for Advanced Materials and TechnologyState Key Laboratory for Advanced Metals and MaterialsUniversity of Science and Technology BeijingBeijing100083China Centre for Catalysis and Clean Energy Gold Coast CampusGriffith UniversityGold CoastQLD4222Australia

The synthesis of a perpendicular growth structure of MoS_(2)nanosheets on graphene for efficient sodium storage is challenging yet ideal due to the benefits of open ion diffusion channels and high electronic *** this study,we have successfully fabricated a novel structure of vertical MoS_(2)nanosheets on graphene,with ZnS nanoparticles serving as bonding points(MoS_(2)/ZnS/G),through a facile hydrothermal *** the synthesis process,Zn^(2+)not only acts as a landing site for the vertical growth of MoS_(2)nanosheets but also triggers the formation of a defect-rich structure in the final *** unique architecture of MoS_(2)/ZnS/G effectively combines the advantages of a vertically aligned geometry and a defectrich structure for energy *** resulting structure displays shortened transport paths for electrons/ions,enhanced conductivity,improved structural integrity,and an increased number of active sites for promising electrochemical *** expected,when used as anode for sodium-ion batteries,the as-synthesize d MoS_(2)/ZnS/G exhibits excellent rate capability(high capacity of 298 mAh·g^(-1)at 5 A·g^(-1))and good cycling stability(a capacity decay of 0.056%per cycle after 500 cycles at 1 A·g^(-1)).According to the kinetic investigations,the electrochemical process of the MoS_(2)/ZnS/G sample is primarily governe d by a pseudocapacitive behavior,which enhances the charge/discharge kinetics and allows the MoS_(2)/ZnS/G structure to remain intact during cycling.

关键词： MoS_(2) Perpendicular growth Graphene Sodium storage Electrochemical performance

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Clinically significant changes in anal sphincter hiatal area in patients with gestational diabetes mellitus and pelvic organ prolapse

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World Journal of Diabetes 2024年第8期15卷 1726-1733页

作者： qing-hong wang Li-Hua Liu Hua Ying Ming-Xu Chen Chang-Jiang Zhou Hui Li Department of Sonography People's Hospital Affiliated to Shandong First Medical UniversityJinan 271100Shandong ProvinceChina Department of Obstetrics and Gynecology People's Hospital Affiliated to Shandong First Medical UniversityJinan 271100Shandong ProvinceChina

BACKGROUND The prevalence of pelvic organ prolapse(POP)increases with age and ***,the prevalence of POP among women aged 20 to 39 is 9.7%,while it rises to 49%among women over 80 years ***,as the number of deliveries increases,the prevalence of POP also rises accordingly,with a rate of 12.8%for women with one delivery history,18.7%for those with two deliveries,and 24.6%for women with three or more *** causes immense suffering for pregnant *** To evaluate the relationship between the levator ani muscle’s hiatus(LH)area and POP in patients with gestational diabetes mellitus(GDM)using perineal *** The study cohort comprised 104 patients aged 29.8±3.7 years who sought medical care at our institution between January 2021 and June *** were singleton pregnancies consisting of 75 primiparas and 29 multiparas,with an average parity of 1.7±*** to the POP diagnostic criteria,the 104 subjects were divided into two groups with 52 members each:POP group(patients with GDM combined with POP)and non-POP group(patients with GDM without POP).Perineal ultrasound was used to measure differences in the anteroposterior diameter,transverse diameter,and LH *** operating characteristic curves were drawn to determine the optimal cutoff values for the LH anteroposterior diameter,transverse diameter,and area for diagnosing *** Statistically significant increase in the LH area,anteroposterior diameter,and lateral diameter were observed in the POP group compared with the non-POP group(P<0.05).Both groups exhibited markedly elevated incidence rates of macrosomia and stress urinary *** the POP group,the area under the curve(AUC)for the LH area was 0.906 with a 95%confidence interval(CI):*** optimal cutoff was 13.54cm²,demonstrating a sensitivity of 83.2%and a specificity of 64.4%.The AUC for the anteroposterior diameter reached 0.836 with a 95%CI:*** optimal cutoff was 5

关键词： Ultrasound Levator ani muscle hiatus Gestational diabetes mellitus Pelvic organ prolapse

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Determination of PDCD5 in Peripheral Blood Serum of Cancer Patients

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Chinese Journal of Cancer Research 2011年第3期23卷 224-228页

作者： Yue wang Guo-hong wang qing-yun Zhang Key Laboratory of Carcinogenesis and Translational Research （Ministry of Education） Department of Clinical LaboratoryPeking University School of OncologyBeijing Cancer Hospital ＆ InstituteBeijing 100142China

Objective：Programmed cell death 5 （PDCD5） is an apoptosis related gene and plays an important role in the pathogenesis and development of *** PDCD5 is present in peripheral blood serum has not been *** aim of this study is to determine the contents of PDCD5 protein in peripheral blood serum of cancer patients,as well as normal ***：ELISA was used to detect the serum PDCD5 concentrations in 100 normal persons,83 patients with breast cancer,74 patients with gastrointestinal tract cancer and 41 patients with lung *** results were statistically analyzed and ***：PDCD5 could be detected in peripheral blood serum in both normal subjects and cancer *** serum PDCD5 contents in normal persons ranged from 3.8 to 6.1 ng/ml with a median of 4.70±0.68 ng/*** cancer patients the PDCD5 levels were 4.59±0.90,4.79±1.14 and 10.43±22.34 ng/ml for breast cancer,gastrointestinal cancer and lung cancer patients *** was no statistically significant difference between the serum PDCD5 concentrations of normal persons and cancer ***：PDCD5 is present in peripheral *** PDCD5 levels in cancer patients are not statistically different from that of normal persons,though decreased expression of PDCD5 in malignant tissues has been found.

关键词： PDCD5 Apoptosis Cancer patients ELISA

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SnO_(2) quantum dots modified N-doped carbon as high-performance anode for lithium ion batteries by enhanced pseudocapacitance

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Rare Metals 2021年第1期40卷 48-56页

作者： Cui-Ping Wu Kai-Xuan Xie Jia-Peng He qing-Peng wang Jian-Min Ma Shun Yang qing-hong wang School of Chemistry and Materials Science Jiangsu Normal UniversityXuzhou 221116China Institute of Biopharmaceutical Research Liaocheng UniversityLiaocheng 252059China School of Physics and Electronics Hunan UniversityChangsha 410082China Key Laboratory of Materials Processing and Mold(Zhengzhou University) Ministry of EducationZhengzhou UniversityZhengzhou 450002China

SnO_(2) is considered to be a promising candidate as anode material for lithium ion batteries,due to its high theoretical specific capacity(1494 mAh·g^(-1)).Nevertheless,SnO_(2)-based anodes suffer from poor electronic conductivity and serious volume variation(300%)during lithiation/delithiation process,leading to fast capacity *** solve these problems,SnO_(2) quantum dots modified N-doped carbon spheres(SnO_(2) QDs@N-C)are fabricated by facile hydrolysis process of SnCl2,accompanied with the polymerization of polypyrrole(PPy),followed by a calcination *** used as anodes for lithium ion batteries,SnO_(2) QDs@N-C exhibits high discharge capacity,superior rate properties as well as good *** carbon matrix completely encapsulates the SnO_(2) quantum dots,preventing the aggregation and volume change during ***,the high N content produces abundant defects in carbon *** is worth noting that SnO_(2) QDs@N-C shows excellent capacitive contribution properties,which may be due to the ultra-small size of SnO_(2) and high conductivity of the carbon matrix.

关键词： Tin dioxide Quantum dots Nitrogen-doped carbon Lithium ion batteries

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An improved procedure for the synthesis of 4-methylimidazol-2-one

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Chinese Chemical Letters 2007年第7期18卷 777-778页

作者： hong Shu Yan qing wang Pu Qin Cai Chun Guo School of Pharmaceutical Engineering Shenyang Pharmaceutical University Shenyang 110016 China

A novel one-pot synthetic method of 4-methylimidazol-2-one is described. The target compound is conveniently synthesized from sodium diformylamide, a modified Gabriel reagent prepared, through condensation, hydrolyzat... 详细信息

关键词： 4-Methylimidazol-2-one Synthesis Sodium diformylamide

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Laboratory studies of rice bran as a carbon source to stimulate indigenous microorganisms in oil reservoirs

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Petroleum Science 2016年第3期13卷 572-583页

作者： Chun-Mao Chen Jin-Ling wang Jung Bong Kim qing-hong wang Jing wang Brandon A.Yoza qing X.Li State Key Laboratory of Heavy Oil Processing China University of Petroleum Department of Molecular Biosciences and Bioengineering University of Hawaii at Manoa Department of Agro-Food Resources National Institute of Agricultural SciencesRural Development Administration Hawaii Natural Energy Institute University of Hawaii at Manoa

There is a great interest in developing cost-efficient nutrients to stimulate microorganisms in indigenous microbial enhanced oil recovery（IMEOR） *** the present study,the potential of rice bran as a carbon source for promoting IMEOR was investigated on a laboratory *** co-applications of rice bran,K2HPO4 and urea under optimized bio-stimulation conditions significantly increased the production of gases,acids and *** structure and diversity of microbial community greatly changed during the IMEOR process,in which Clostridium sp.,Acidobacteria sp.,Bacillus sp.,and Pseudomonas *** ***,acidification and emulsification due to microbial activities and interactions markedly improved the IMEOR *** study indicated that rice bran is a potential carbon source for IMEOR.

关键词： Rice bran Bio-stimulation Petroleum Microbial diversity Indigenous microbial enhanced oil recovery

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Phenolic compounds from the aqueous extract of Acacia catechu

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Chinese Chemical Letters 2011年第11期22卷 1331-1334页

作者： Xing Cui Li Li Xin Yang hong qing wang Ruo Yun Chen State Key Laboratory of Bioactive Substances and Functions of Natural Medicines Institute of Materia Medica Chinese Academy of Medical Sciences ＆ Peking Union Medical College Beijing 100050 China

From the aqueous extract of Acacia catechu,two new phenolic compounds（3R,4R）-3-（3,4-dihydroxyphenyl）-4-hydroxycy-clohexanone （1） and（4R）-5-（1-（3,4-dihydrophenyl）-3-oxobutyl）-dihydrofuran-2（3H）-one（2） w... 详细信息

关键词： Acacia catechu Phenolic compounds Free-radical scavenging activity

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Efficient ozonation of reverse osmosis concentrates from petroleum refinery wastewater using composite metal oxideloaded alumina

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Petroleum Science 2017年第3期14卷 605-615页

作者： Yu Chen Chun-Mao Chen Brandon A.Yoza qing X.Li Shao-Hui Guo Ping wang Shi-Jie Dong qing-hong wang State Key Laboratory of Petroleum Pollution Control Beijing Key Laboratory of Oil and Gas Pollution Control China University of Petroleum Hawaii Natural Energy Institute University of Hawaii at Manoa Department of Molecular Biosciences and Bioengineering University of Hawaii at Manoa

Novel Mn–Fe–Mg-and Mn–Fe–Ce-loaded alumina（Mn–Fe–Mg/Al2O3 and Mn–Fe–Ce/Al2O3） were developed to catalytically ozonate reverse osmosis concentrates generated from petroleum refinery wastewaters（PRW-ROC）. Highly dispersed 100–300-nm deposits of composite multivalent metal oxides of Mn（Mn^2＋）, Mn^3＋,and Mn^4＋, Fe（Fe^2＋）and Fe^3＋ and Mg（Mg^2＋）, or Ce（Ce^4＋） were achieved on Al2O3 supports. The developed Mn–Fe–Mg/Al2O3 and Mn–Fe–Ce/Al2O3 exhibited higher catalytic activity during the ozonation of PRW-ROC than Mn–Fe/Al2O3, Mn/Al2O-3, Fe/Al2O3, and Al2O3. Chemical oxygen demand removal by Mn–Fe–Mg/Al2O3-or Mn–Fe–Ce/Al2O3-catalyzed ozonation increased by 23.9% and23.2%, respectively, in comparison with single ***–Fe–Mg/Al2O3 and Mn–Fe–Ce/Al2O3 notably promoted áOH generation and áOH-mediated oxidation. This study demonstrated the potential use of composite metal oxide-loaded Al2O3 in advanced treatment of bio-recalcitrant wastewaters.

关键词： Petroleum refinery wastewater Reverseosmosis concentrate Catalytic ozonation Compositemetal oxide

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MANAGEMENT OF URETERAL ENDOMETRIOSIS: A REPORT OF TEN CASES

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Chinese Medical Sciences Journal 2008年第4期23卷 218-223页

作者： Chun-yan Li hong-qing wang Hai-yuan Liu Jing-he Lang Department of Obstetrics and Gynecology Provincial Hospital Affiliated to Shandong University Jinan 250021 Department of Obstetrics and Gynecology Peking Union Medical College ttospital Chinese Academy of Medical Sciences ＆ Peking Union Medical College Beijing 100730

Objective To investigate the clinical features and management of ureteral endometriosis. Methods Patients surgically and histologically diagnosed as ureteral endometriosis from January 2001 to January 2007 in Peking Union Medical College Hospital were retrospectively reviewed. Results Ten patients were diagnosed as ureteral endometriosis among 7 561 cases with surgically and histologically proved diagnosis of endometriosis, with an incidence of 0.132%. Nine out of 10 patients were extrinsic ureteral endometriosis and concomitant with severe pelvic endometriosis, and the other was intrinsic ureteral endometriosis. Hormone therapy failed in 2 patients with urinary tract obstruction. Ureterolysis was performed in 6 patients and ureterectomy was performed in 4 patients. One case of ureteral recurrence was observed in a postmenopausal woman without hormonal replacement therapy who received laparoscopic ureterolysis and hysterectomy with bilateral adnexectomy. No relapse was observed in the other 9 patients. Conclusions Ureteral endometriosis is a rare entity. The upper urinary tract should be evaluated in patients with severe endometriosis, even in postmenopausal women. The treatment of ureteral endometriosis usually requires surgery, while ureterolysis should not be performed in patients with extensive disease. As a form of adjuvant therapy of surgery, hormonal therapy is an appropriate option.

关键词： endometriosis ureter management

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Nickel sulfide-based energy storage materials for high-performance electrochemical capacitors

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Rare Metals 2021年第2期40卷 353-373页

作者： Ramyakrishna Pothu Ravi Bolagam qing-hong wang Wei Ni Jin-Feng Cai Xiao-Xin Peng Yue-Zhan Feng Jian-Min Ma School of Physics and Electronics Hunan UniversityChangsha410082China School of Chemistry and Materials Science Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional MaterialsJiangsu Normal UniversityXuzhou221116China Institute for Advanced Study Chengdu UniversityChengdu610106China Faculty of Technology University of OuluOulu90014Finland Yiyang Wanjingyuan Electronics Co. Ltd.Yiyang413000China Key Laboratory of Materials Processing and Mold(Zhengzhou University) Ministry of EducationZhengzhou UniversityZhengzhou450002China

Supercapacitors are favorable energy storage devices in the field of emerging energy technologies with high power density,excellent cycle stability and environmental *** performance of supercapacitors is definitively influenced by the electrode *** sulfides have attracted extensive interest in recent years due to their specific merits for supercapacitor ***,the distribution of electrochemically active sites critically limits their electrochemical *** improvements have been achieved through various strategies such as building synergetic structures with conductive substrates,enhancing the active sites by nanocrystallization and constructing nanohybrid architecture with other electrode *** article overviews the progress in the reasonable design and preparation of nickel sulfides and their composite electrodes combined with various bifunctional electric double-layer capacitor(EDLC)-based substances(e.g.,graphene,hollow carbon)and pseudocapacitive materials(e.g.,transition-metal oxides,sulfides,nitrides).Moreover,the corresponding electrochemical performances,reaction mechanisms,emerging challenges and future perspectives are briefly discussed and summarized.

关键词： Supercapacitors Nickel sulfides Hybrid structures Energy storage materials Pseudocapacitance

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