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InP quantum dots on g-C_(3)N_(4) nanosheets to promote molecular oxygen activation under visible light

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Chinese Chemical Letters 2020年第10期31卷 2689-2692页

作者： Yuehan Cao Qian Zheng Zhiqiang Rao Ruiyang Zhang zhanghui Xie Shan Yu Ying Zhou State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum UniversityChengdu 610500China The Center of New Energy Materials and Technology School of New Energy and MaterialsSouthwest Petroleum UniversityChengdu 610500China

Largely limited by the high dissociation energy of the O—O bond,the photocatalytic molecular oxygen activation is highly challenged,which re strains the application of photocatalytic oxidation technology for atmospheric pollutants ***,we design and fabricate the InP QDs/g-C_(3)N_(4) *** introduction of InP QDs promotes the charge transfer within the interface resulting in the effective separation of photo-generated ***,InP QDs greatly facilitates the activation of molecular oxygen and promote the formation of O_(2)·under visible-light illuminatio *** conclusions are identified by experimental and calculation ***,NO can be combined with the O_(2)·to form O—O—N—O intermediate to direct conversion into NO_(3).As a result,the NO removal ratio of g-C_(3)N_(4) has a one fold increase after InP QDs loaded and the generation of NO_(2) is effectively *** wo rk may provide a strategy to design highly efficient materials for molecular oxygen activation.

关键词： InP quantum dots g-C_(3)N_(4)nanosheets Molecular oxygen activation O-O-N-O intermediate Photocatalytic NO removal

Renin--angiotensin system inhibitor is associated with the reduced risk of all-cause mortality in COVID-19 among patients with/without hypertension

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Frontiers of Medicine 2022年第1期16卷 102-110页

作者： Huai-yu Wang Suyuan Peng zhanghui Ye Pengfei Li Qing Li Xuanyu Shi Rui Zeng Ying Yao Fan He Junhua Li Liu Liu Shuwang Ge Xianjun Ke Zhibin Zhou Gang Xu Ming-hui Zhao Haibo Wang Luxia Zhang Erdan Dong National Institute of Health Data Science at Peking University Beijing 100191China Peking University Advanced Institute of Information Technology Hangzhou 311215China Department of Nephrology Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China Department of Clinical Nutrition Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China Taikang Tongji(Wuhan)Hospital Wuhan 430050China First Affiliated Hospital of Sun Yat-sen University Guangzhou 510080China Renal Division Department of MedicinePeking University First HospitalPeking University Institute of NephrologyBeijing 100034China Peking-Tsinghua Center for Life Sciences Beijing 100871China Department of Cardiology and Institute of Vascular Medicine Peking University Third HospitalKey Laboratory of Cardiovascular Molecular Biology and Regulatory PeptidesMinistry of HealthKey Laboratory of Molecular Cardiovascular SciencesMinistry of EducationBeijing Key Laboratory of Cardiovascular Receptors ResearchBeijing 100191China

Consecutively hospitalized patients with confirmed coronavirus disease 2019(COVID-19)in Wuhan,China were retrospectively enrolled from January 2020 to March 2020 to investigate the association between the use of renin–angiotensin system inhibitor(RAS-I)and the outcome of this *** between the use of RAS-I(angiotensin-converting enzyme inhibitor(ACEI)or angiotensin receptor blocker(ARB)),ACEI,and ARB and in-hospital mortality were analyzed using multivariate Cox proportional hazards regression models in overall and subgroup of hypertension status.A total of 2771 patients with COVID-19 were included,with moderate and severe cases accounting for 45.0%and 36.5%,respectively.A total of 195(7.0%)patients ***-I(hazard ratio(HR)=0.499,95%confidence interval(CI)0.325–0.767)and ARB(HR=0.410,95%CI 0.240–0.700)use was associated with a reduced risk of all-cause mortality among patients with *** patients with hypertension,RAS-I and ARB applications were also associated with a reduced risk of mortality with HR of 0.352(95%CI 0.162–0.764)and 0.279(95%CI 0.115–0.677),***-I exhibited protective effects on the survival outcome of *** use was associated with a reduced risk of all-cause mortality among patients with COVID-19.

关键词： COVID-19 RAS inhibitor hypertension all-cause mortality

Preparation and Characterization of CuInS_2 Thin Films for Solar Cells by Chemical Bath Deposition

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Chemical Research in Chinese Universities 2005年第2期21卷 236-239页

作者： TANGHui-xiang YANMi zhanghui MAXiang-yang WANGLei YANGDe-ten StateKeyLaboratoryofSiliconMaterials ZhejiangUniversityHangzhou310027P.R.China

Recent years, chalcopyrite semiconductors have been successfully applied as absorber layers for polycrystalline thin-film solar cells. Among the ternary compound semiconductors, CuInS2 thin films with a direct bandgap of about 1.50 eV and a large absorption coefficient in the range of 104-105cm-1[1] are one kind of the most promising optical absorbers for high efficiency thin film solar *** date, CuInS2-based solar cells have shown conversion efficiency of about 12. 5%[2]. They exhibit long-term stability without any signs of degradation.

关键词： CuInS_2 Chemical bath deposition Thin films

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香菇病害调查及病原菌分离鉴定

中国食用菌 2024年第1期43卷 73-80,88页

作者：罗熙孙达锋华蓉刘绍雄罗孝坤刘祈猛高章会余锁姝李建英中华全国供销合作总社昆明食用菌研究所云南昆明650221 云南省食用菌产业发展研究院云南昆明650221 保山市科学技术情报研究所云南保山678099

通过对云南省大理白族自治州、保山市、丽江市、昭通市等地香菇栽培过程中常见病害的调查以及病原菌的分离鉴定,以期为云南省香菇栽培管理和病害防治提供理论依据。结果表明,菌包感染是云南省香菇栽培过程中最为常见的病害症状,也是影... 详细信息

通过对云南省大理白族自治州、保山市、丽江市、昭通市等地香菇栽培过程中常见病害的调查以及病原菌的分离鉴定,以期为云南省香菇栽培管理和病害防治提供理论依据。结果表明,菌包感染是云南省香菇栽培过程中最为常见的病害症状,也是影响最为严重的问题。基于rDNA ITS片段序列对分离的病原菌进行鉴定,发现引起菌棒感染的病原菌有哈茨木霉、桔绿木霉、长枝木霉、瘿青霉、酒青霉、腐皮镰孢菌、冻土毛霉、粗糙脉孢菌,其中哈茨木霉为引起病害的主要病原菌。

关键词：香菇病原菌分离鉴定木霉属

Effects of reduction temperature and content of Pd loading on the performance Pd/CeO2 catalyst for CO oxidation

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Chinese Chemical Letters 2019年第6期30卷 1153-1156页

作者： Yue Yan Huaxi Li zhanghui Lu Xuewen Wang Rongbin Zhang Gang Feng Key Laboratory of Jiangxi Province for Environment and Energy Catalysis College of Chemistry Nanchang University Nanchang 330031 China College of Chemistry and Chemical Engineering Jiangxi Normal University Nanchang 330022 China

The content of noble metal loading and the reduction process of the catalysts are important factors influence the economic indicator and catalytic performance for industrial catalysis. In the present work, Pd/CeO2NT (Pd supported on the CeO2 nanotubes) catalysts are prepared with the hydrothermal synthesized CeO2NT and glutathione (GSH) reduced Pd nanoparticles via impregnation. The content of Pd loading as well as the catalysts reduction temperature are optimized to the CO oxidation reduction. Our results show that the best Pd loading is 1.5%Pd/CeO2NT. The catalysts reduced at 350 ℃ for 2 h prior to catalytic reaction perform the best toward CO oxidation, which reaches completely CO conversion at 70 ℃. The XRD, Raman, H2-TPR, TEM, BET and XPS characterization reveal that the excellent catalytic performance of 350 °C 1.5%Pd/CeO2NT sample can be attributed the high Pd^0 species and oxygen vacancy in the sample, which are important factors influence the activity of the catalysts.

关键词： CO oxidation Palladium catalyst Ceria nanotubes Reduction temperature Palladium content

基于语义传播与前/背景感知的图像语义分割网络

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模式识别与人工智能 2022年第1期35卷 71-81页

作者：刘漳辉占小路陈羽中福州大学计算机与大数据学院福州350116 福州大学福建省网络计算与智能信息处理重点实验室福州350116

虽然图像语义分割因其有助于更好地分析和理解图像而被广泛应用于多个领域,但是基于全卷积神经网络的模型在语义分割方面依然存在分辨率重构及如何利用上下文信息的问题.因此,文中提出基于语义传播与前/背景感知的图像语义分割网络.首先... 详细信息

虽然图像语义分割因其有助于更好地分析和理解图像而被广泛应用于多个领域,但是基于全卷积神经网络的模型在语义分割方面依然存在分辨率重构及如何利用上下文信息的问题.因此,文中提出基于语义传播与前/背景感知的图像语义分割网络.首先,提出联合语义传播上采样模块,提取高层特征的全局语义信息与局部语义信息,用于得到语义权重,将高层特征语义传播到低层特征,缩小两者之间的语义差距,再通过逐层上采样实现分辨率重构.此外,还提出金字塔前/背景感知模块,通过两个并行分支提取不同尺度前景特征与背景特征,建立前景与背景间的依赖关系,捕获多尺度的前/背景感知特征,增强前景特征的上下文表示.语义分割基准数据集上的实验表明,文中网络性能较优.

关键词：语义分割全卷积神经网络分辨率重构上下文信息

New Chiral Metal Cluster Systems for Catalytic AsymmetricSyntheses of Chiral Alcohols

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Chemical Research in Chinese Universities 2004年第2期20卷 180-184页

作者： LIYan-yun CHENJian-shan YANGChuan-bo DONGZhen-rong LIBao-zhu zhanghui GAOJing-xing TAKAOIkariya DepartmentofChemistry InstituteofPhysicalChemistryStateKeyLaboratoryofPhysicalChemistryofSolidSurfaceXiamenUniversityXiamen361005P.R.China GraduateSchoolofScienceandEngineering TokyoInstituteoftechnology&CREST2-12-1O-okayamaMeguro-kuTokyo152-8552Japan

The efficient chiral Ru 3(CO) 12 systems were prepared in situ from Ru 3(CO) 12 and various chiral diimino-or diamino-diphosphine tetradentate ligands. The systems have been used for the asymmetric transfer hydrogenation of propiophenone in 2-propanol, leading to 1-phenyl-1-propanol in a 98% yield and 96% e.e. The IR study suggests that the carbonyl hydride anion [HRu 3(CO) 11]- most probably exists as a principal species under the reaction conditions. The high chiral efficiency may be due to the synergetic effect produced by the neighboring ruthenium atoms and a special chiral micro-environment involving the polydentate ligand and the Ru 3 framework.

关键词： Chiral cluster systems Asymmetric transfer hydrogenation Aromatic ketones

Histopathological changes of free buccal mucosa and colonic mucosa grafts after translation to dog bladder

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Chinese Medical Journal 2005年第4期118卷 337-339页

作者： XUYue-min SAYing-long QIAOYong zhanghui-zhen ZHANGXin-ru ZHANGJiong CHENZhong XIEHong SIJie-min LITai DepartmentofUrologySixthPeople＇sHospital ShanghaiJiaotongUniversityShanghai200233China DepartmentofPathologySixthPeople＇sHospital ShanghaiJiaotongUniversityShanghai200233China DepartmentofUrologySixthPeople＇sHospital ShanghaiJiaotongUniversityShanghai200233China

Over the past years, more cases using buccal mucosa for urethral reconstruction have been reported.(1-4) The excellent early results with this tissue led some authors to extend their indications for its use. However, patients with complex, long-segment urethral strictures and significant scar tissue formation after the failure of previous urethroplasty, still present an operative challenge. The buccal mucosa may not be useful for the treatment of the complicated lengthy urethral strictures because of limited material. To explore the possibility of urethral reconstruction with a graft of colonic mucosa for the treatment of complicated lengthy strictures, we investigated the use of colonic mucosa as a novel substitute for urethral reconstruction in dogs with severe lengthy urethral structure.(5,6) The objects of the present study were to investigate further whether the colonic mucosal graft is an ideal substitute material, for urethral reconstruction, in place of buccal mucosal graft and their pathological characteristic after long-term exposure to urine.

关键词： buccal mucosa colonic mucosa urethral reconstruction

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黄色金针菇黑腐病病原菌的分离与鉴定

中国食用菌 2024年第4期43卷 94-97页

作者：高章会孙达锋刘绍雄李建英岳万松刘春丽张晓华刘桂秧华蓉中华全国供销合作总社昆明食用菌研究所云南昆明650221 云南省食用菌产业发展研究院云南昆明650221

为探明引起黄色金针菇黑腐病的病原菌,为黄色金针菇病害防治及栽培管理等奠定基础,开展了黄色金针菇(Flammulina filiformis)黑腐病的病害调查和病原菌分离鉴定试验。结果表明,引起黄色金针菇黑腐病的病原菌为托拉斯假单胞杆菌(Pseudomo... 详细信息

为探明引起黄色金针菇黑腐病的病原菌,为黄色金针菇病害防治及栽培管理等奠定基础,开展了黄色金针菇(Flammulina filiformis)黑腐病的病害调查和病原菌分离鉴定试验。结果表明,引起黄色金针菇黑腐病的病原菌为托拉斯假单胞杆菌(Pseudomonas tolaasii)。

关键词：黄色金针菇黑腐病病原菌分离鉴定托拉斯假单胞杆菌