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Rational construction of Ag@MIL-88B(V)-derived hierarchical porous Ag-V_(2)O_(5) heterostructures with enhanced diffusion kinetics and cycling stability for aqueous zinc-ion batteries

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Journal of Energy Chemistry 2023年第2期77卷 561-571,I0015页

作者： Yibo Zhang zhihua li liangjun Gong Xuyu Wang Peng Hu Jun liu School of Materials Science and Engineering Central South UniversityChangsha 410083HunanChina Key Laboratory of Nonferrous Metal Materials Science and Engineering of Ministry of Education Central South UniversityChangsha 410083HunanChina School of Environmental and Chemical Engineering Jiangsu University of Science and TechnologyZhenjiang 212003JiangsuChina Fine Chemical Industry Research Institute School of ChemistrySun Yat-Sen UniversityGuangzhou 510275GuangdongChina

With the advantages of the multiple oxidation states and highly open crystal structures,vanadium-based composites have been considered as the promising cathode materials for aqueous zinc-ion batteries(ZIBs).However,the inherent inferior electrical conductivity,low specific surface area,and sluggish Zn^(2+)diffusion kinetics of the traditional vanadium-based oxides have greatly impeded their ***,a novel hierarchical porous spindle-shaped Ag-V_(2)O_(5) with unique heterostructures was rationally designed via a simple MOF-assisted synthetic method and applied as stable cathode for aqueous *** high specific surface area and hierarchically porous superstructures endowed Ag-V_(2)O_(5) with sufficient electrochemical active sites and shortened the diffusion pathways of Zn^(2+),which was beneficial to accelerate the reversible transport of Zn^(2+)and deliver a high specific capacity(426 mA h g^(-1) at 0.1 A g^(-1) and 96.5%capacity retention after 100 cycles).Meanwhile,the self-built-in electric fields at the heterointerface of Ag-V_(2)O_(5) electrode could strengthen the synergistic coupling interaction between Ag and V_(2)O_(5),which can effectively enhance the electric conductivity and maintain the structural integrity,resulting in superb rate capability(326.1 mA h g^(-1) at 5.0 A g^(-1))and remarkable cycling stability(89.7%capacity retention after 2000 cycles at 5.0 A g^(-1)).Moreover,the reversible Zn^(2+)storage mechanism was further investigated and elucidated by kinetics analysis and DFT calculations.

关键词： Aqueous zinc-ion batteries Metal-organic frameworks V_(2)O_(5) Heterostructures Nano silver

The real-world study of the clinical characteristics,diagnosis,and treatment of advanced pancreatic cancer in China

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Journal of Pancreatology 2024年第1期7卷 1-9页

作者： Jiujie Cui Qihan Fu Xiaobing Chen Yanling Wang Qi li Feng Wang zhihua li Guanghai Dai Yusheng Wang Hongmei Zhang Houjie liang Jun Zhou liu Yang Fenghua Wang Leizhen Zheng Xiaofeng Chen Ping Gong Jiang liu Ying Yuan lin Wang Yuejuan Cheng Jun Zhang Yuhong Zhou Weijian Guo Xianbao Zhan Zhengyun Zou Da li Shan Zeng Enxiao li Zhiwei li Zan Teng Dan Cao Jie Kan Jianping Xiong Ming Quan Jiayu Yao Haiyan Yang liwei Wang Department of Medical Oncology Renji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghaiChina Department of Medical Oncology The First Affiliated HospitalCollege of MedicineZhejiang UniversityHangzhouChina Department of Medical Oncology Affiliated Cancer Hospital of Zhengzhou UniversityHenan Cancer HospitalZhengzhouChina Department of Medical Oncology Shanghai General HospitalShanghai Jiao Tong UniversityShanghaiChina Department of Medical Oncology The First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina Department of Medical Oncology Sun Yat-sen Medical Hospital Sun Yat-sen UniversityGuangzhouChina Medical Oncology Chinese PLA General HospitalBeijingChina Department of Gastrointestinal Oncology Shanxi Provincial Cancer HospitalAffiliated to Shanxi Medical UniversityTaiyuanChina Department of Clinical Oncology Xijing HospitalAir Force Medical UniversityXi’anChina Department of Oncology and Southwest Cancer Center Southwest HospitalThird Military Medical University(Army Military Medical University)ChongqingChina Department of Gastrointestinal Oncology Key Laboratory of Carcinogenesis and Translational Research(Ministry of Education/Beijing)Peking University Cancer Hospital&InstituteBeijingChina Cancer Center Department of Medical OncologyZhejiang Provincial People’s HospitalPeople’s Hospital of Hangzhou Medical CollegeHangzhouChina Department of Medical Oncology Sun Yat-sen University Cancer CenterState Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouGuangdongChina Oncology Department Xin Hua Hospital Affiliated to Shanghai JiaoTong University School of MedicineShanghaiChina Department of Oncology the First Affiliated Hospital with Nanjing Medical UniversityNanjingChina Department of Oncology The First Affiliated HospitalSchool of MedicineShihezi UniversityShiheziChina Department of Oncology People’s Hospital of Xinjiang Uygur Autonomous RegionXinjiangChina Department of Medical Oncology t

Objective:Real-world diagnostic and treatment data for pancreatic cancer in China are *** such,the present study investigated the clinical characteristics,diagnosis,and treatment of advanced pancreatic cancer(including locally advanced and metastatic disease)in the Hospital-based Advanced Pancreatic Cancer Cohort in China of the China Pancreas Data Center ***:A total of 5349 Chinese patients with advanced pancreatic cancer were identified from a *** entire course of real-world pancreatic cancer management was ***:The proportion of patients with advanced pancreatic cancer was higher among males than females(62.4%vs 37.6%,respectively).Patients typically had a history of hypertension(30.8%),diabetes(21.6%),and cholangitis(20.2%).Abdominal pain(51.6%),abdominal distension(27.1%),jaundice(20.1%),and weight loss(16.3%)were the main symptoms observed in patients with advanced pancreatic cancer in this *** carbohydrate antigen(CA)19-9 is one of the most common tumor *** the present study,2562 patients underwent first-line *** median progression-free survival(PFS)for patients undergoing first-line therapy was 4.1 *** major options for first-line therapy included gemcitabine(GEM)plus S-1(GS/X)(23.4%),nab-paclitaxel plus GEM(AG)(18.1%),oxaliplatin,irinotecan,and leucovorin-modulated fluorouracil(FOLFIRINOX;11.9%),nab-paclitaxel plus S-1(AS)(8.9%),and GEM combined with oxaliplatin/cisplatin(GEMOX/GP)(7.6%).The AS and GS/X regimens were associated with the highest PFS ***:This is the first study to report multicenter,real-world data regarding advanced pancreatic cancer in *** revealed that real-world treatment options differed from guideline recommendations,and PFS was shorter than that in previously reported *** intelligent follow-up systems and standardizing diagnosis and treatment of pancreatic cancer is recommended.

关键词： Advanced pancreatic cancer China Pancreas Data Center Chinese First-line regimens Real-world study

考虑故障穿越和时变延迟的孤岛微网电压功率控制

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电源学报 2024年第4期22卷 152-162页

作者：曹德发王彬李志华马明陈诚伟周哲民广东电网有限责任公司梅州供电局梅州514000 清华大学电机工程与应用电子技术系北京100084 北京清大高科系统控制有限公司北京102208

为了解决孤岛交流微电网由时变通信延迟和不确定性故障引起的不稳定性问题,提出1种新型鲁棒分层控制方法。该方法包括级联结构的电流环、电压环、虚拟阻抗和下垂控制环。首先,在电流环中设计1种基于自适应反推积分非奇异快速终端滑模控... 详细信息

为了解决孤岛交流微电网由时变通信延迟和不确定性故障引起的不稳定性问题,提出1种新型鲁棒分层控制方法。该方法包括级联结构的电流环、电压环、虚拟阻抗和下垂控制环。首先,在电流环中设计1种基于自适应反推积分非奇异快速终端滑模控制的鲁棒控制器,用于在未知有界不确定性和外部干扰时调节和跟踪电流参考值;接着,在电压环中采用混合H_(2)/H_(∞)控制,利用状态反馈控制律生成内环参考值,增加控制器对扰动的鲁棒性,并在线性矩阵不等式基础上给出充分条件。考虑到时变延迟TVD(time-varyingdelay)的不稳定影响,在第二控制层采用基于一致性的分布式协议,以提高控制器应对TVD的鲁棒性。然后,为提高系统的功率分配精度,采用下垂控制和虚阻抗环;最后,通过半实物仿真,评估了控制方法的性能,并验证了所提控制方法的有效性。与已有研究进行对比分析,仿真结果表明:所提方法在大、小信号扰动下的瞬态响应、稳态性能和故障穿越能力等方面具有一定的优越性。

关键词：自适应控制滑模控制分布式发电混合H_(2)/H_∞ 鲁棒控制时变延迟

Tuning of activated sludge in winter based on respirogram profiles under standard and site temperatures

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Journal of Environmental Sciences 2019年第5期31卷 330-338页

作者： zhihua li Zhenyu Hang Qian Zhang Shuangshuang Zhang Tianyu Zhang Hanqing Yu School of Environmental and Municipal Engineering Xi'an University of Architecture and Technology Department of Mathematical Sciences Montana State University CAS Key Laboratory of Urban Pollutant Conversion Department of Chemistry University of Science & Technology of China

Respirograms of activated sludge OUR_ x^Tand OUR_x^(20)were measured under site(T) and standard(20°C) temperatures, respectively, and the predicted standard temperature respirogram OUR_( x,cal)^(20)was also calculated using the Arrhenius equation. These respirogram profiles reveal more information than effluent quality. A decrease of OUR_ x ^(20)is a critical alarm signal for the loss of pollutant removal capacity, and a sudden increase of the predicted value OUR_( x,cal)^(20)is an alarm signal for the unrecoverable deterioration of biomass. The sign of OUR_x^(20)–OUR_(x,cal)^(20)can be used for selection of tuning strategies. For example, a negative value of OUR_x^(20)–OUR_( x,cal)^(20)indicates that doubling biomass is difficult,thus strategies such as extending the reaction time with limited available biomass is preferred. The findings in this study elucidated the respiration profile of activated sludge under changes of temperature and can be effectively used for the stable operation of Wastewater Treatment Plants under cold temperatures and seasonal variations.

关键词： Activated sludge Cold temperature shocking Oxygen uptake rate(OUR) Respirogram Seasonal variations

剥离黏液层改性污泥回用对污泥颗粒化过程的影响

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工业水处理 2024年第4期44卷 76-83页

作者：上官一将文正红贾燕茹杨成建李志华西安建筑科技大学环境与市政工程学院陕西西安710055 西安市环境工程装备智能化技术重点实验室陕西西安710055 西安建筑科技大学西北水资源与环境生态教育部重点实验室陕西西安710055

胞外聚合物(Extracellular polymeric substances,EPS)的资源化回收已经得到了广泛研究,但关于剥离EPS后污泥就地回用至污水生物处理系统的研究甚少。通过对剥离黏液层改性后的污泥进行考察发现,改性后的污泥仍具有良好的微生物活性,具... 详细信息

胞外聚合物(Extracellular polymeric substances,EPS)的资源化回收已经得到了广泛研究,但关于剥离EPS后污泥就地回用至污水生物处理系统的研究甚少。通过对剥离黏液层改性后的污泥进行考察发现,改性后的污泥仍具有良好的微生物活性,具备较好的底物降解能力;且相较于原泥,改性污泥的胞外蛋白质与胞外多糖质量比[m(PN)/m(PS)]由1.37提升至1.84,Zeta电位绝对值降低了25.97%,絮凝性能提升,因此改性污泥可回用于污水生物处理系统,并改善其性能。进一步地,研究了改性污泥连续回用至DE型氧化沟系统对其性能及污泥性质的影响,结果表明,随着回用天数的增加,污泥的m(PN)/m(PS)升高,系统内污泥开始颗粒化,粒径大于200μm的颗粒污泥占比达到了30%以上,污泥颗粒化持续增强。因此,连续回用剥离黏液层改性污泥至DE型氧化沟系统,可以促使系统内污泥颗粒化,从而为连续流氧化沟系统的污泥颗粒化提供了新方法。

关键词：黏液层改性污泥回用颗粒污泥 DE型氧化沟

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c-Fos expression within the L_5 spinal cord dorsal horn after spinal nerve ligation in rats Is intraplantar administration of glutamate different from intrathecal administration?

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Neural Regeneration Research 2010年第6期5卷 450-455页

作者： Youhong Jin Hongshui Zhu zhihua li Dongfang li Jianhua Hu Motohide TakemuraO Norifumi YoneharaO Department of Anatomy Affiliated Stomatological Hospital of Nanchang University Nanchang 330006 Jiangxi ProvinceChina Department of Oral Anatomy and Neurobiology Osaka University Graduate School of Dentistry Suita 565-0871 Japan Divisions of Pharmacology Ohu University School of Pharmaceutical Science Koriyama Fukushima 963-8611 Japan

BACKGROUND： Injection of glutamate （Glu） in normal animals can cause neuronal c-Fos expression; however, whether Glu can induce spinal neuronal c-Fos expression in pain models is unclear. OBJECTIVE： To examine the effects of intraplantar and intrathecal injection of Glu on c-Fos expression in the L5 spinal cord dorsal horn Ⅰ/Ⅱ and Ⅲ/Ⅳ layers after spinal nerve ligation, and to study the effects of the N-methyI-D-aspartic acid （NMDA） receptor antagonist, D-2-amino-5-phosphonopentanoate （D-AP5）, and a selective group I mGluR antagonist, 7-hydroyiminocyclo propan[a]chromen-lacarboxylic acid ethyl ester （cpccoEt）. DESIGN, TIME AND SETTING： A randomized, controlled animal study was performed at the Department of Pharmacology, Oral Anatomy, and Neurobiology, Osaka University Graduate School of Dentistry, from December 2005 to December 2006. MATERIALS： Glu （5 μmol）, D-AP5 （50 nmot） and cpccoEt （250 nmol） were provided by Wako Pure Chemical Industries, Osaka, Japan, and diluted in saline （50 μL）. The pH of all solutions was adjusted to 7.4. METHODS： Twelve rats were randomly divided into sham operation （n = 6） and spinal nerve ligation （SNL; n = 6） groups for behavioral assessments of neuropathic pain after ligation surgery of the left L5-6 nerve segment. Another 60 rats were randomly divided into sham operation, SNL, saline-intraplantar, saline-intrathecal, Glu-intraplantar, Glu-intrathecal, D-AP5-intrathecal, Glu-D-AP5-intrathecal, cpccoEt-intrathecal, and Glu-cpccoEt-intrathecal groups, with 6 rats in each group. All groups except sham operation group received a similar SNL. On day 14, rats received a 50-μL injection of saline, Glu, D-AP5, and/or cpccoEt into the left intraplantar or intrathecal L5-4 segments. MAIN OUTCOME MEASURES： The number of c-Fos positive neurons in both Ⅰ/Ⅱ and Ⅲ/Ⅳ spinal layers at L6 was observed using immunohistochemistry 2 hours after administration. RESULTS：（1） SNL increased the level of c-Fos expression in two sides of the spinal cord, parti

关键词： spinal cord nerve ligation glutamate c-Fos metabotropic glutamate receptors intrathecal administration intraplantar administration

连接智能手机的红外热成像技术在皮瓣移植围手术期检测中的应用

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中国美容医学 2024年第7期33卷 89-93页

作者：李攀登徐晓涵高新宇李之华徐州医科大学附属医院烧伤整形外科江苏徐州221000

目的:探讨连接智能手机的红外热成像技术在皮瓣移植围手术期中的应用价值。方法:2018年1月-2019年1月,笔者科室使用连接智能手机的便携式红外热像仪(FliR ONE Pro),在10例患者皮瓣移植术围手术期对皮瓣及其轴形血管、穿支血管进行拍摄,... 详细信息

目的:探讨连接智能手机的红外热成像技术在皮瓣移植围手术期中的应用价值。方法:2018年1月-2019年1月,笔者科室使用连接智能手机的便携式红外热像仪(FliR ONE Pro),在10例患者皮瓣移植术围手术期对皮瓣及其轴形血管、穿支血管进行拍摄,并应用FliR Tools软件进行分析,同时在术中对穿支血管及轴形血管进行验证,计算热成像技术预测皮瓣坏死的敏感性、特异性、准确性、阳性预测值、阴性预测值。结果:本组10例患者有11处软组织缺损,均行皮瓣修复。热成像仪检测结果显示,8处皮瓣血供良好,3处皮瓣血供不佳。血供良好的8处皮瓣,术后观察到1处皮瓣出现部分坏死。血供不佳的3处皮瓣,术后观察到2处皮瓣出现远端表浅坏死,1处皮瓣术后血供好,未发生坏死。在此基础上计算热成像技术预测皮瓣坏死的敏感性为66.7%(2/3),特异性为87.5%(7/8),准确性为81.8%(9/11),阳性预测值为66.7%(2/3),阴性预测值为87.5%(7/8)。术前探测穿支血管16支,术中证实13支;探测10支血管链,术中证实10支血管链。结论:连接智能手机的红外热成像技术在术前探查血管穿支、血管链用于辅助皮瓣设计,术中术后监测皮瓣的皮温、血运以预测、预防皮瓣的坏死方面具有较高的客观性及有效性,可客观有效地辅助外科医生设计皮瓣、评估皮瓣血运,值得临床推广应用。

关键词：热成像技术皮瓣智能手机围手术期穿支血管

机器人辅助腹腔镜下颊黏膜补片输尿管成形术治疗复杂输尿管狭窄

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北京大学学报（医学版） 2024年第4期56卷 640-645页

作者：应沂岑杜毅聪李志华张一鸣李新飞王冰张鹏朱宏建周利群杨昆霖李学松北京大学第一医院泌尿外科北京大学泌尿外科研究所国家泌尿男生殖系肿瘤中心北京100034 北京大学第一医院密云区医院泌尿外科北京101599 应急总医院泌尿外科北京100028 北京市健宫医院泌尿外科北京100054

目的:探讨机器人辅助腹腔镜下颊黏膜补片输尿管成形术治疗复杂输尿管上段、长段狭窄的可行性、安全性及有效性。方法:收集2022年7月至2023年1月于北京大学第一医院泌尿外科和北京市健宫医院泌尿外科收治的20例行机器人辅助腹腔镜下颊黏... 详细信息

目的:探讨机器人辅助腹腔镜下颊黏膜补片输尿管成形术治疗复杂输尿管上段、长段狭窄的可行性、安全性及有效性。方法:收集2022年7月至2023年1月于北京大学第一医院泌尿外科和北京市健宫医院泌尿外科收治的20例行机器人辅助腹腔镜下颊黏膜补片输尿管成形术治疗输尿管上段狭窄患者的临床资料,记录并分析术中情况、术后并发症及随访资料。结果:本研究包含14例男性和6例女性,平均年龄(41±11)岁(范围19~60岁),平均体重指数(24.3±3.6)kg/m^(2)(范围18.2~31.8 kg/m^(2))。左侧9例,右侧11例,所有患者的狭窄部位均位于输尿管上段(包含肾盂-输尿管连接部)。平均术前血肌酐(92.2±23.3)μmol/L(范围49.2~138.9μmol/L),平均输尿管狭窄长度为(2.8±0.9)cm(范围1.0~4.0 cm)。20例患者中10例患者既往接受过失败的重建手术,12例患者术中接受了输尿管后壁加强吻合。平均获取颊黏膜补片长度为(3.1±0.6)cm(范围2.0~4.3 cm),中位宽度为1.5 cm(范围1.0~2.0 cm)。中位手术时长154 min(范围113~300 min),中位术中估计出血量45 mL(范围0~100 mL)。中位术后住院日为4 d(范围4~14 d)。平均术后随访时间(15.0±1.7)月(范围12.5~17.9月),手术成功率为100.0%。术后11例患者报告了颊黏膜取材部位的轻度不适,2例患者术后出现泌尿系感染,其他7例没有报告术后并发症。术后6个月复查血肌酐,为(90.9±23.9)μmol/L(范围60.0~153.0μmol/L)。结论:机器人辅助腹腔镜下颊黏膜补片输尿管成形术治疗复杂输尿管上段、长段狭窄疗效满意,无严重并发症发生,具有较好的可行性、安全性和有效性,但需大样本研究及长时间随访评估其远期疗效。

关键词：机器人手术输尿管狭窄颊黏膜修复外科手术

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A novel approach to estimate and control denitrification performance in activated sludge systems with respirogram technology

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Journal of Environmental Sciences 2022年第11期34卷 112-121页

作者： zhihua li Yali Zhang Zhenyu Hang Meng Lu Haiguang Wang Xingdong Gao Ruina Zhang Key Laboratory of Northwest Water Resource Environment and EcologyMOEXi’an University of Architecture and TechnologyXi’an 710055China Shaanxi Key Laboratory of Environmental Engineering Xi’an University of Architecture and TechnologyXi’an 710055China Shanghai Environmental&Sanitary Engineering Design Institute Co.Ltd. Shanghai 200232China

Respirogram technology has been widely applied for aerobic process, however, the response of respirogram to anoxic denitrification is still unclear. To reveal such response may help to design a new method for the evaluation of the performance of denitrification. The size distribution of flocs measured at different denitrification moments demonstrated a clear expansion of flocs triggered by denitrification, during which higher specific endogenous and quasi-endogenous respiration rates(SOUReand SOURq) were also observed. Furthermore,SOURqincreases exponentially with the specific denitrification rate(SDNR), suggesting that there should be a maximum SDNR in conventional activated sludge systems. Based on these findings, an index Rq/t, defined as the ratio of quasi-endogenous(OURq) to maximum respiration rate(OURt), is proposed to estimate the denitrification capacity that higher Rq/tindicates higher denitrification potential, which can be readily obtained without complex measurement or analysis, and it offers a novel and promising respirogram-based approach for denitrification estimation and control by taking measures to extend anoxic time to maintain its value at a high level within a certain range.

关键词： Denitrification Respirogram Activated sludge Oxygen uptake rate Biological nutrient removal