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基于皮肤屏障功能、氧化应激指标评估疏肝消斑汤联合YAG激光治疗黄褐斑的临床效果

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中国医疗美容 2024年第1期14卷 47-50页

作者：张作军周树明高金丽信阳职业技术学院附属医院皮肤性病科河南信阳464000 河南中医药大学第一附属医院泌尿外科河南郑州450000 信阳市中心医院整形外科河南信阳464000

目的分析基于皮肤屏障功能、氧化应激指标评估疏肝消斑汤联合YAG激光治疗黄褐斑的可行性。方法选取108例信阳职业技术学院附属医院收治的黄褐斑患者,选例时间:2021年8月至2023年3月,分为对照组(54例)和研究组(54例),分为对照组和研究组... 详细信息

目的分析基于皮肤屏障功能、氧化应激指标评估疏肝消斑汤联合YAG激光治疗黄褐斑的可行性。方法选取108例信阳职业技术学院附属医院收治的黄褐斑患者,选例时间:2021年8月至2023年3月,分为对照组(54例)和研究组(54例),分为对照组和研究组,对照组接受YAG激光治疗,研究组接受疏肝消斑汤联合YAG激光治疗,两组均连续治疗20周。比较两组治疗后临床疗效,治疗前后皮损情况及皮肤屏障功能、血清超氧化物歧化酶(SOD)、丙二醛(MDA)、脂质过氧化物(LPO)水平、皮肤病生存质量指数(DLQI)、抑郁自评量表(SDS)、焦虑自评量表(SAS)和肝郁气滞证评分情况。结果研究组临床总有效率较高(两组治疗后相比);两组皮损面积、皮损颜色积分、皮损区经表皮水分流失值、黑色素含量、DLQI、SDS、SAS、肝郁气滞证评分、血清MDA、LPO水平均降低(治疗后相较于治疗前),且研究组处于较低水平(组间进行对比);两组角质层含水量、血清SOD水平均升高(治疗后相较于治疗前),且研究组处于较高水平(组间进行对比),P<0.05。结论黄褐斑患者应用疏肝消斑汤联合YAG激光治疗,可有助于改善皮肤屏障功能、心理状态,缓解临床症状,抑制氧化应激反应,提升生活质量,且临床疗效显著。

关键词：黄褐斑疏肝消斑汤激光皮肤屏障功能氧化应激

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ICP-MS法测定香苏正胃丸中朱砂的含量

中南药学 2024年第7期22卷 1883-1885页

作者：高立金李杰张琳卢彩会仇晓晴廊坊市药品检验所河北廊坊065000

目的建立香苏正胃丸中毒性成分朱砂的含量测定方法。方法香苏正胃丸样品用盐酸-硝酸(3∶1)5 mL超声,使朱砂反应生成可溶性汞盐,用水和2%硝酸稀释,加入金储备液,使含汞和金比例为1∶200,用ICP-MS法对朱砂中的汞进行含量测定。结果汞的质... 详细信息

目的建立香苏正胃丸中毒性成分朱砂的含量测定方法。方法香苏正胃丸样品用盐酸-硝酸(3∶1)5 mL超声,使朱砂反应生成可溶性汞盐,用水和2%硝酸稀释,加入金储备液,使含汞和金比例为1∶200,用ICP-MS法对朱砂中的汞进行含量测定。结果汞的质量浓度在0~15 ng·mL^(-1)内与信号强度呈良好的线性关系,回归方程Y=2614X+317,相关系数(r)0.9999,平均回收率为97.6%,RSD为1.7%,3批次样品每丸含朱砂(以硫化汞计)在5.76~5.85 mg内。结论建立的方法简便可靠、准确性高、专属性强,可用于香苏正胃丸质量控制。

关键词： ICP-MS法香苏正胃丸毒性成分朱砂

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UPLC法测定香苏正胃丸中6种成分的含量

广州化工 2024年第15期52卷 80-82页

作者：高立金卢彩会张琳陈佳佩廊坊市药品检验所河北廊坊065000 廊坊卫生职业学院药学系河北廊坊065000

建立UPLC法测定香苏正胃丸中柚皮苷、橙皮苷、新橙皮苷、迷迭香酸、和厚朴酚与厚朴酚6个成分的含量。以SHIMADZU Shim-pack GISI C_(18)为色谱柱,规格100 mm×2.1 mm,粒径2μm,以乙腈为流动相A,0.1%磷酸溶液为流动相B,以线性方式调节流... 详细信息

建立UPLC法测定香苏正胃丸中柚皮苷、橙皮苷、新橙皮苷、迷迭香酸、和厚朴酚与厚朴酚6个成分的含量。以SHIMADZU Shim-pack GISI C_(18)为色谱柱,规格100 mm×2.1 mm,粒径2μm,以乙腈为流动相A,0.1%磷酸溶液为流动相B,以线性方式调节流动相比例进行梯度洗脱,流速0.3 mL/min,柱温30℃,检测波长294 nm。该系统能使柚皮苷、橙皮苷、新橙皮苷、迷迭香酸、和厚朴酚与厚朴酚在各自的测定范围内线性关系良好,相关系数(r)均大于0.999,平均加样回收率在97.61%~99.82%,RSD在1.13%~2.56%。所建立的测定方法简便、准确、灵敏、重复性较好,可用于香苏正胃丸的质量控制。

关键词：香苏正胃丸 UPLC 化学成分

Unveiling the size effect of nitrogen-doped carbon-supported copper-based catalysts on nitrate-to-ammonia electroreduction

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Nano Research 2024年第4期17卷 2438-2443页

作者： Ran li Taotao gao Wenxi Qiu Minghao Xie Zhaoyu jin Panpan li College of Materials Science and Engineering Sichuan UniversityChengdu 610065China Institute for Advanced Study Chengdu UniversityChengdu 610106China Materials Science and Engineering Program and Walker Department of Mechanical Engineering The University of Texas at AustinAustinTexas 78712USA Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of ChinaChengdu 610054China

The electrocatalytic nitrate reduction reaction(NitRR)represents a promising approach toward achieving economically and environmentally sustainable ***,it remains a challenge to regulate the size effect of electrocatalysts to optimize the catalytic activity and ammonia ***,the Cu-based catalysts were tailored at the atomic level to exhibit a size gradient ranging from single-atom catalysts(SACs,0.15–0.35 nm)to single-cluster catalysts(SCCs,1.0–2.8 nm)and nanoparticles(NPs,20–30 nm),with the aim of studying the size effect for the NO_(3)^(-)-to-NH_(3) reduction ***,the Cu SCCs exhibit enhanced metal–substrate and metal–metal interactions by taking advantageous features of Cu SACs and Cu ***,Cu SCCs achieve exceptional electrocatalytic performance for the NitRR with a maximum Faradaic efficiency of ca.96%NH_(3)and the largest yield rate of ca.1.99 mg·h^(-1)·cm^(-2) at-0.5 V *** hydrogen electrode(RHE).The theoretical calculation further reveals the size effect and coordination environment on the high catalytic activity and selectivity for the *** work provides a promising various size-controlled design strategy for aerogel-based catalysts effectively applied in various electrocatalytic reactions.

关键词： nitrate electroreduction ammonia electrosynthesis size effect single-cluster catalyst

Formation mechanism of fault accommodation zones under combined stress in graben basin:Implications from geomechanical modeling

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Petroleum Science 2024年第1期21卷 54-76页

作者： Qi-Qiang Ren jin-liang gao Rong-Tao Jiang jin Wang Meng-Ping li Jian-Wei Feng Institute of Sedimentary Geology Chengdu University of TechnologyChengdu 610059SichuanChina PetroChina Research Institute of Petroleum Exploration and Development Beijing100083China Jianghan Oilfield Oil and Gas Production Capacity Construction Management Center Chongqing408000China Sinopec Chongqing Fuling Shale Gas Exploration and Development Company Chongqing408000China College of Energy Chengdu University of TechnologyChengdu 610059SichuanChina School of Geoscience China University of Petroleum(East China)Qingdao 266580ShandongChina

A fault accommodation zone is a type of structure that is defined as regulating displacement and strain between faults *** numbers of fault accommodation zones are being identified in graben basins,indicating the potential exploration target and petroleum accumulation *** study aims to analyze the formation mechanism and development of fault accommodation zones under combined stress by a numerical simulation method considering geomechanical *** three-dimensional(3-D)seismic interpretation and fractal dimension method,exampled with the Dongxin fault zone,the fault activity and fault combination pattern were conducted to quantitatively characterize the activity difference in fault accommodation *** with mechanical experiment test,a geomehcanical model was established for fault accommodation zones in a graben *** the paleostress numerical simulations and structural physical simulation experiment,the developmental characteristics and genetic mechanism of fault accommodation zones were *** by multi movements and combined stresses,three significant tectonic evolution stages of the Dongxing Fault Zone(DXFZ)were distinguished:During the E_(s)^(3)sedimentary period,the large difference in the stress,strain,and rupture distribution in various faults were significant,and this stage was the key generation period for the prototype of the DXFZ,including the FAZ between large-scale *** the E_(s)^(2)sedimentary period,the EW-trending symmetric with opposite dipping normal faults and the NE-SW trending faults with large scale were furtherly *** junction area of two secondary normal faults were prone to be ruptured,performing significant period for inheriting and developing characteristics of fault accommodation *** the Es1 sedimentary period,the high-order faults in the DXFZ exhibited the obvious fault depressions and strike-slip activity,and the fault accommodation zones were

关键词： Fault accommodation zone Graben basin Fault activity Tectonic physical simulation experiment Finite element numerical simulation Dongxin fault zone

A survey on dynamic graph processing on GPUs: concepts, terminologies and systems

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Frontiers of Computer Science 2024年第4期18卷 1-23页

作者： Hongru gao Xiaofei liAO Zhiyuan SHAO Kexin li Jiajie CHEN Hai jin National Engineering Research Center for Big Data Technology and System/Services Computing Technology and System Lab/Cluster and Grid Computing Lab School of Computer Science and TechnologyHuazhong University of Science and TechnologyWuhan 430074China Zhejiang Lab Hangzhou 311121China

Graphs that are used to model real-world entities with vertices and relationships among entities with edges,have proven to be a powerful tool for describing real-world problems in *** most real-world scenarios,entities and their relationships are subject to constant *** that record such changes are called dynamic *** recent years,the widespread application scenarios of dynamic graphs have stimulated extensive research on dynamic graph processing systems that continuously ingest graph updates and produce up-to-date graph analytics *** the scale of dynamic graphs becomes larger,higher performance requirements are demanded to dynamic graph processing *** the massive parallel processing power and high memory bandwidth,GPUs become mainstream vehicles to accelerate dynamic graph processing ***-based dynamic graph processing systems mainly address two challenges:maintaining the graph data when updates occur(i.e.,graph updating)and producing analytics results in time(i.e.,graph computing).In this paper,we survey GPU-based dynamic graph processing systems and review their methods on addressing both graph updating and graph *** comprehensively discuss existing dynamic graph processing systems on GPUs,we first introduce the terminologies of dynamic graph processing and then develop a taxonomy to describe the methods employed for graph updating and graph *** addition,we discuss the challenges and future research directions of dynamic graph processing on GPUs.

关键词： dynamic graphs graph processing graph algorithms GPUs

Study on the atmospheric heat engine efficiency and heat source characteristics of the Qinghai-Tibet Plateau in summer

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Science China Earth Sciences 2024年第1期67卷 117-133页

作者： Yujie li Xiaoqing gao Yaoming MA Zeyong HU Zhenchao li liwei YANG Xiao jin Xiyin ZHOU Key Laboratory of Land Surface Process and Climate Change in Cold and Arid Regions of Chinese Academy of Sciences Northwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 730000China Tianjin Key Laboratory for Oceanic Meteorology Tianjin Institute of Meteorological ScienceTianjin 300074China Institute of Tibetan Plateau Research Chinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Beijing 100049China

There are many types of atmospheric heat engines in land-air *** accurate definition,calculation and interpretation of the efficiency of atmospheric heat engines are key to understanding energy transfer and transformation of landair *** atmosphere over the Qinghai-Tibet Plateau(QTP)in summer can be regarded as a positive heat *** study of the heat engine efficiency is helpful to better understand land-air interaction and thermal-dynamic processes on the *** also provides a new perspective to explain the impact of the QTP on the climate of China,East Asia and even the *** this paper,we used MOD08 and ERA5 reanalysis data to calculate the atmospheric heat engine efficiency,surface heat source and atmospheric heat source on the QTP in summer(May to September)from 2000 to *** average atmospheric heat engine efficiency on the QTP in summer from 2000 to 2020 varies between 1.2%and 1.5%,which is less than 1.6%;the heat engine efficiency in summer is higher than that in June,July and August;the Qaidam Basin is the region with the highest atmospheric heat engine efficiency,followed by the western *** mean surface heat source on the QTP in summer from 2000 to 2020 is 96.0 W m^(−2),the atmospheric heat source is 90.7 W m^(−2),and the release of precipitation condensation latent heat is the most important component of the atmospheric heat source on the QTP in *** is a strong and significant positive correlation between the atmospheric heat engine efficiency and the surface heat source on the QTP in *** precipitation condensation latent heat is the most important component of the atmospheric heat source in summer and can reflect the precipitation *** is a strong and significant negative correlation between the atmospheric heat engine efficiency and the atmospheric heat source on the QTP in summer.

关键词： Qinghai-Tibet Plateau Climate change Land-air system Atmospheric heat engine Heat source on the Qinghai-Tibet Plateau

Engineering g-C_(3)N_(4)based materials for advanced photocatalysis:Recent advances

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Green Energy & Environment 2024年第2期9卷 166-197页

作者： Xin-lian Song Lei Chen li-Jiao gao jin-Tao Ren Zhong-Yong Yuan National Institute for Advanced Materials School of Materials Science and EngineeringSmart Sensing Interdisciplinary Science CenterNankai UniversityTianjin300350China Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Nankai UniversityTianjin300071China

Photocatalysis driven by abundant yet intermittent solar energy has considerable potential in renewable energy generation and environmental *** outstanding electronic structure and physicochemical properties of graphitic carbon nitride(g-C_(3)N_(4)),together with unique metal-free characteristic,make them ideal candidates for advanced photocatalysts *** review summarizes the up-to-date advances on g-C_(3)N_(4)based photocatalysts from ingenious-design strategies and diversified photocatalytic ***,the advantages,fabrication methods and limitations of each design strategy are systemically *** order to deeply comprehend the inner connection of theory–structure–performance upon g-C_(3)N_(4)based photocatalysts,structure/composition designs,corresponding photocatalytic activities and reaction mechanisms are jointly discussed,associated with introducing their photocatalytic applications toward water splitting,carbon dioxide/nitrogen reduction and pollutants degradation,***,the current challenges and future perspectives for g-C_(3)N_(4)based materials for photocatalysis are briefly *** design strategies and limitations are also instructive for constructing g-C_(3)N_(4) based materials in other energy and environment-related applications.

关键词： Graphitic carbon nitride g-C_(3)N_(4) Design strategies Photocatalysis Photocatalysts Reaction mechanism

Enhanced photocatalytic hydrogen production from Co-MOF/CN by nitrogen and sulfur co-doped coal-based carbon quantum dots

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Journal of Rare Earths 2024年第5期42卷 838-850,I0002页

作者： Shiyong Xu Mei li Yijun Wang Caiyun gao Rongsheng Xu Zhiliang jin School of Chemistry and Chemical Engineering North Minzu UniversityYinchuan750021China Ningxia Key Laboratory of Solar Chemical Conversion Technology.North Minzu University.Yinchuan 750021China State Key Laboratory of National Ethnic Affairs Commission Chemical Technology.North Minzu University Yinchuan750021China

A novel composite photocatalyst for photocatalytic decomposition of water for hydrogen evolution was successfully synthesized by in-situ growth of nitrogen and sulfur co-doped coal-based carbon quantum dots(NSCQDs)nanoparticles on the surface of sheet cobalt-based metal-organic framework(Co-MOF)and graphitic carbon nitride(g-C_(3)N_(4),CN).The structure and properties of the obtained catalysts were systematically *** effectively broaden the absorption of Co-MOF and CN in the visible *** new composite photocatalyst has high hydrogen production activity and the hydrogen production rate reaches 6254μmol/(g·h)at pH=*** the same time,NSCQDs synergy Co-MOF/CN composites have good *** four cycles of hydrogen production,the performance remains relatively *** tran sient photocurrent response and Nyquist plot experimental results further demonstrate the improvement of carrier separation efficiency in composite *** semiconductor type(n-type semico nductor)of the single-phase catalyst was determined by the Mott-Schottky test,and the band structure was *** conductive and valence bands of CN are-0.99 and 1.72 eV,respectively,and the conduction and valence bands of Co-MOF are-1.85 and 1.33 eV,*** e mechanism of the photocatalytic reaction can be inferred,that is,Z-type heterojunction is formed between CN an d Co-MOF,and NSCQDs was used as cocatalyst.

关键词： Nitrogen and sulfur co-doped Coal-based carbon quantum dots Co-MOF CN Photocatalytic hydrogen evolution Rare earths