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Smarter and Cleaner: The Digital Economy and Environmental Pollution

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China & World Economy 2022年第6期30卷 59-85页

作者： qianqian wan Daqian Shi School of Economics Huazhong University of Science and TechnologyChina School of Economics Wuhan University of TechnologyChina

The ongoing diffusion of digital technology into socio-economic activity has triggered hopes of minimizing environmental *** research aimed to investigate the relationship between the digital economy and the intensity of SO_(2),pollutant emissions and to examine the mechanism that explains how digitalization leads to the reduction of pollutants from the perspective of environmental *** applied the criteria importance through intercriteria correlation approach to construct a comprehensive index system to measurethedigital economy in *** weexamined the correlation between the digital economy and SO_(2),pollution *** analyze the mechanism,we investigated the moderating effect of environmental regulations and also took macroscopic mechanisms(such as innovation and industrial structure)into *** empirical results indicated that the digital economy had a negative effect on SO_(2),pollution *** negative impact was greater for medium-sized provinces with abundant resources in eastern and southern *** also found that environmental regulations(e.g.,environmental legislation and environmental penalties)moderated the impact of the digital economy on SO_(2),pollution intensity,and the same was true for several macro mechanisms(e.g.,innovation,industrial structure,and labor productivity,etc.).This has implications for how thegovernment implements environmental regulations inthefuture.

关键词： digital economy environmental pollution environmental regulation SO_(2)pollution intensity

屈光参差性弱视一阶光栅锐度和二阶纹理敏感度的感知能力

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国际眼科杂志 2024年第1期24卷 42-47页

作者：王家凤万茜茜赵云徽鲍宁陶黎明安徽医科大学第二附属医院眼科中国安徽省合肥市230601

目的:研究单眼屈光参差性弱视患者对一阶光栅锐度和二阶纹理敏感度的感知能力。方法:收集2018-01/2022-12于我院确诊的单眼屈光参差性弱视儿童715例715眼作为弱视组,另选取矫正视力正常儿童745例745眼作为正常对照组。分别检测最佳矫正... 详细信息

目的:研究单眼屈光参差性弱视患者对一阶光栅锐度和二阶纹理敏感度的感知能力。方法:收集2018-01/2022-12于我院确诊的单眼屈光参差性弱视儿童715例715眼作为弱视组,另选取矫正视力正常儿童745例745眼作为正常对照组。分别检测最佳矫正视力(BCVA)、一阶光栅锐度和(或)二阶纹理敏感度,并分析不同程度弱视患者对一阶光栅锐度和二阶纹理敏感度的感知能力。结果:弱视组与正常对照组一阶光栅锐度(11.58±6.10 vs 20.27±3.47,P<0.001)、二阶纹理敏感度(0.33±0.16 vs 0.12±0.04,P<0.001)均有明显差异,且轻中度弱视患者与重度弱视患者一阶光栅锐度(12.10±6.23 vs 8.13±3.70,P<0.001)和二阶纹理敏感度(0.32±0.16 vs 0.37±0.17,P<0.05)均有明显差异。结论:单眼屈光参差性弱视患者大脑皮层一阶视觉通路和二阶视觉通路均存在不同程度的损伤,重度弱视患者较轻中度弱视患者损伤更为严重。

关键词：屈光参差性弱视视觉发育敏感期一阶光栅锐度二阶纹理敏感度视觉通路

PEI联合术中房角镜下房角分离及房角切开术治疗中晚期PACG合并白内障

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国际眼科杂志 2024年第6期24卷 864-869页

作者：高思佳闻郁万茜茜刘贺婷陶黎明安徽医科大学第二附属医院眼科安徽省合肥市230601

目的:评价超声乳化白内障吸除人工晶状体植入术(PEI)联合术中房角镜直视下房角分离术(GSL)及房角切开术(GT)治疗中晚期原发性闭角型青光眼(PACG)合并白内障的效果。方法:回顾性病例系列研究方法。收集2021-12-01/2023-03-31在安徽医科... 详细信息

目的:评价超声乳化白内障吸除人工晶状体植入术(PEI)联合术中房角镜直视下房角分离术(GSL)及房角切开术(GT)治疗中晚期原发性闭角型青光眼(PACG)合并白内障的效果。方法:回顾性病例系列研究方法。收集2021-12-01/2023-03-31在安徽医科大学第二附属医院手术的中晚期PACG合并白内障患者62例65眼,根据手术方式不同分为两组:观察组30例32眼行PEI+GSL+GT,对照组32例33眼行PEI+GSL。评估两组患者术前,术后1 d, 1 wk, 1、3、6 mo眼压、最佳矫正视力(BCVA)和抗青光眼药物使用数量。术前和术后6 mo时分别评估视野、杯盘比、前房角开放范围、前房深度、RNFL平均厚度。结果:PEI+GSL+GT组术后6 mo眼压和平均眼压降幅(16.68±2.65、11.12±8.53 mmHg)与PEI+GSL组(18.71±2.51、8.32±4.17 mmHg)有显著差异(P0.05)。术后6 mo两组抗青光眼药物使用数量、BCVA、前房深度、房角关闭范围均较术前改善(均P0.05)。两组术后6 mo的视野平均偏差、杯盘比及RNFL平均厚度较术前均无差异(均P>0.05)。PEI+GSL+GT组手术完全成功率为81%(26/32),手术条件成功率为94%(30/32);PEI+GSL组手术完全成功率为58%(19/33),手术条件成功率为76%(25/33)。两组间手术成功率均有差异(完全成功率χ^(2)=4.275,P=0.039;条件成功率χ^(2)=4.040,P=0.044)。两组患者均未见危及视力的并发症及再次手术。结论:对于中晚期原发性闭角型青光眼合并白内障患者,采用PEI+GSL+GT治疗比PEI+GSL治疗更有效。

关键词：原发性闭角型青光眼(PACG) 白内障房角切开术房角分离术微创青光眼手术超声乳化白内障吸除人工晶状体植入(PEI) 前房角镜检查

环保型绝缘气体C_(5)F_(10)O对大鼠致畸作用研究

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高压电器 2024年第9期60卷 33-39页

作者：楚奕天叶凡超田双双刘伟豪万茜茜张晓星湖北工业大学新能源及电网装备安全检测湖北省工程研究中心武汉430068 武汉大学中南医院武汉430072

全氟戊酮(C_(5)F_(10)O)作为一种环保型气体绝缘介质,具备替代SF_(6)应用于中低压气体绝缘设备的潜力。然而,目前关于C_(5)F_(10)O的生物安全性特别是生物致畸作用的相关研究较少。为了确保C_(5)F_(10)O在电力行业的安全性,有必要对C_(5... 详细信息

全氟戊酮(C_(5)F_(10)O)作为一种环保型气体绝缘介质,具备替代SF_(6)应用于中低压气体绝缘设备的潜力。然而,目前关于C_(5)F_(10)O的生物安全性特别是生物致畸作用的相关研究较少。为了确保C_(5)F_(10)O在电力行业的安全性,有必要对C_(5)F_(10)O气体开展更为全面的毒理学研究。文中通过C_(5)F_(10)O气体对妊娠大鼠的胚胎发育器官形成期给予吸入染毒,然后对孕鼠和胎鼠各项生命体征及胎鼠发育情况进行检查分析,系统评估吸入一定体积分数的C_(5)F_(10)O气体所引起的子代致畸可能性。实验结果表明,吸入高体积分数的C_(5)F_(10)O气体可能会导致大鼠后代存在内脏畸形、骨骼发育不全等不良现象,但并未表现出明显的统计学意义,C_(5)F_(10)O气体对大鼠致畸实验观察到的最大无作用致畸剂量(NOAEL)为7 715.3μL/L,相关结果可以为C_(5)F_(10)O的工程应用和安全防护策略提供了重要参考。

关键词： C_(5)F_(10)O SF_(6)替代气体致畸性生物安全风险评估

Arc decomposition behavior of C_(4)F_(7)N/Air gas mixture and biosafety evaluation of its by-products

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High Voltage 2022年第5期7卷 856-865页

作者： Fanchao Ye Xiaoxing Zhang Yi Li qianqian wan Jean-Marc Bauchire Dunpin Hong Song Xiao Ju Tang School of Electrical Engineering and Automation Wuhan UniversityWuhanChina University of Orleans CNRSOrleansFrance Hubei Engineering Research Center for Safety Monitoring of New Energy and Power Grid Equipment Hubei University of TechnologyWuhanChina Zhongnan Hospital Wuhan UniversityWuhanChina

At present,reports on the arc interruption and decomposition behavior of a C_(4)F_(7)N/air gas mixture especially the biosafety of its by-products are ***,a 57%C_(4)F_(7)N/43%air gas mixture was employed as an arc-quenching medium to conduct 200 breaking tests on a load switch(630 A/24 kV).The arc interruption and decomposition behavior of the gas mixture were evaluated,and the biosafety of the decomposition products was assessed based on an acute inhalation toxicity *** was found that the average arcing time of the 200 breakings was about 10.1 ms and that breakings were basically completed at the zero-crossing of the second or third current *** gas mixture after breaking decomposed dramatically(the C_(4)F_(7)N content decreased by 75.6%),generating a large number of gaseous by-products(CO,CF_(4),C_(2)F_(6),C_(3)F_(8),CF_(3)CN,C_(4)F_(8),CO_(2),C_(4)F_(10)N_(2),C_(3)F_(6),C_(2)N_(2),etc.)as well as solid by-products(carbon particles).The lethal concentration of 50%(LC50,4 h)of C_(4)F_(7)N/air after 200 breakings was 31 ppm(male mice)and 34 ppm(female mice),respectively,and the toxicity was classified as Grade *** general,C_(4)F_(7)N has an arc interruption capability,albeit weaker than that of SF_(6)under the same *** breaking,the C_(4)F_(7)N gas mixture has a relatively high acute inhalation toxicity,and relevant safety protection measures for research or operation personnel are strictly needed.

关键词： breaking mixture behavior

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揿针治疗术后胃瘫综合征100例临床观察

中国中医药现代远程教育 2024年第12期22卷 99-102页

作者：郭晨旭时良慧吴胜兵万迁迁万旭英上海市闵行区古美社区卫生服务中心上海201802 海军军医大学第三附属医院中西医结合科上海201805

目的观察揿针治疗术后胃瘫综合征(PGS)的临床效果。方法将200例PGS患者随机分成对照组(100例)和治疗组(100例)。对照组患者采用常规治疗:禁食水、予以胃肠减压、静脉营养、促进胃肠道蠕动等药物。治疗组在常规治疗的基础上加用揿针治疗... 详细信息

目的观察揿针治疗术后胃瘫综合征(PGS)的临床效果。方法将200例PGS患者随机分成对照组(100例)和治疗组(100例)。对照组患者采用常规治疗:禁食水、予以胃肠减压、静脉营养、促进胃肠道蠕动等药物。治疗组在常规治疗的基础上加用揿针治疗。观察两组患者治疗前后胃动力恢复时间、胃液引流量变化、痞满症状改善和临床疗效。结果与对照组相比,治疗组胃肠动力恢复时间减少、胃液引流量降低,差异均有统计学意义(P<0.05);治疗组痞满症状分级评分优于对照组(P<0.05);对照组总有效率为71.0%(71/100),明显低于治疗组的89.0%(89/100),差异有统计学意义(P<0.05)。结论腹部术后胃瘫综合征患者实施常规疗法与揿针疗法结合的方案可促进胃肠功能恢复,缩短胃动力恢复时间,减少胃液引流量,缓解患者的痞满症状,增强临床疗效。

关键词：反胃术后胃瘫综合征揿针疗法

Strong electron correlation-induced Mott-insulating electrides of Ae_(5)X_(3)(Ae=Ca,Sr,and Ba;X=As and Sb)

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Matter and Radiation at Extremes 2024年第3期9卷 74-82页

作者： Ya Xu Lu Zheng Yunkun Zhang Zhuangfei Zhang qianqian wang Yuewen Zhang Liangchao Chen Chao Fang Biao wan Huiyang Gou Key Laboratory of Material Physics of Ministry of Education School of Physics and Laboratory of Zhongyuan LightZhengzhou UniversityZhengzhou 450052China School of Mechanical and Equipment Engineering Hebei University of EngineeringHandan 056038China Center for High Pressure Science and Technology Advanced Research Beijing 100094China

The presence of interstitial electrons in electrides endows them with interesting attributes,such as low work function,high carrier concentration,and unique magnetic *** knowledge and understanding of electrides are thus of both scientific and technological ***,we employ first-principles calculations to investigate Mott-insulating Ae_(5)X_(3)(Ae=Ca,Sr,and Ba;X=As and Sb)electrides with Mn_(5)Si_(3)-type structure,in which half-filled interstitial electrons serve as ions and are *** Mott-insulating property is induced by strong electron correlation between the nearest interstitial electrons,resulting in spin splitting and a separation between occupied and unoccupied *** half-filled antiferromagnetic configuration and localization of the interstitial electrons are critical for the Mott-insulating properties of these *** with that in intermetallic electrides,the orbital hybridization between the half-filled interstitial electrons and the surrounding atoms is weak,leading to highly localized magnetic centers and pronounced correlation ***,the Mott-insulating electrides Ae_(5)X_(3)have very large indirect bandgaps(0.30 eV).In addition,high pressure is found to strengthen the strong correlation effects and enlarge the *** present results provide a deeper understanding of the formation mechanism of Mott-insulating electrides and provide guidance for the search for new strongly correlated electrides.

关键词： intermetallic filled occupied

Stabilizing n-type cubic AgBiSe_(2) thermoelectric materials through alloying with PbS

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Journal of Materiomics 2024年第1期10卷 70-77页

作者： Lai Zhang Weixia Shen Zhuangfei Zhang Chao Fang qianqian wang Biao wan Liangchao Chen Yuewen Zhang Xiaopeng Jia Key Laboratory of Material Physics of Ministry of Education School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450052China

Phase transition generates rapid changes of transport parameters and poor mechanical property,and thus restricts the application of thermoelectric ***_(2) exhibits cubic phase at above 580 K with high-symmetry structure and low lattice thermal conductivity,indicating the potentiality of high thermoelectric *** this work,the cubic structure of AgBiSe_(2) was achieved at ambient conditions by alloying with PbS,enhancing the configurational entropy at both cationic and anionic *** cubic structure was rather stable after several measurement *** substitution at cationic sites effectively reduced band gap,and increased both carrier concentration and effective *** samples exhibited relatively low lattice thermal conductivity(0.68-0.34 W/(m·K))in the temperature range of 300-773 K,due to the nanoscale inhomogeneity and the random distribution of multiple species at some atomic sites.A maximum zT of 0.65 at 773 K was obtained for(Ag_(0.99)Nb_(0.01)BiSe_(2))_(0.8)(PbS)_(0.2) *** entropy-driven structural stabilization is a promising strategy to achieve stable structure for practical thermoelectric applications.

关键词： Thermoelectric AgBiSe_(2) Configurational entropy Phase transition

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系统性硬化症的早期识别与预防

中华预防医学杂志 2023年第12期57卷 2224-2231页

作者：万茜茜陈小奇武汉大学中南医院风湿免疫科武汉430071

系统性硬化症是一种导致皮肤及内脏纤维化的疾病,缺乏特异性治疗药物,预后极差。疾病的早期诊断和干预对改善患者预后具有极大的价值,本文从早期症状识别、实验室检查、药物干预等等方面,对系统性硬化症的早期诊治进行阐述,为该病的预... 详细信息

系统性硬化症是一种导致皮肤及内脏纤维化的疾病,缺乏特异性治疗药物,预后极差。疾病的早期诊断和干预对改善患者预后具有极大的价值,本文从早期症状识别、实验室检查、药物干预等等方面,对系统性硬化症的早期诊治进行阐述,为该病的预防提供参考。

关键词：系统性硬化症早期诊断预防