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Carbon cathode with heteroatom doping and ultrahigh surface area enabling enhanced capacitive behavior for potassium-ion hybrid capacitors

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Rare Metals 2024年第5期43卷 2136-2149页

作者： yan Xiong ya-Fei Zhang Chun-Liu Zhu lei yang Huan-Yu Liang Jing Shi Jing-Wei Chen Wei-QianTian Shuai Liu Zhi Li Jing-Yi Wu Huan-lei Wang School of Materials Science and Engineering Ocean University of ChinaQingdao 266100China Department of Chemical and Materials Engineering University of AlbertaEdmontonAB T6G 2V4Canada

Potassium-ion hybrid capacitors(PIHCs)are widely regarded as highly promising energy storage devices,due to their exceptional energy density,impressive power density,and abundant potassium ***,restricted by the inherent capacitive storage mechanism,the carbon cathodes possess a much lower specific capacity than battery-type ***,designing high-performance carbon cathodes is extremely urgent for the development of ***,N,O codoped porous carbon(NOPC)was fabricated through the NaCl hard template method and combined KOH/melamine chemical activation technique,displaying the characteristics of abundant N/O content(4.7 at%/16.9 at%),ultrahigh specific surface area(3092 m^(2)g^(-1))and hierarchical pore *** designed NOPC cathode delivers a high specific capacity(164.4 mAh.g^(-1)at 0.05 A.g^(-1))and superior cyclability(95.1%retention ratio at 2 A·g^(-1)over 2500 cycles).Notably,the adjustable ratio of micropores to mesopores facilitates the achievement of the optimal bal-ance between capacity and rate ***,the pseudocapacitance can be further augmented through the incorporation of N/O functional *** expected,the graphite//NOPC based PIHC possesses a high energy density of 113 Wh·kg-at 747 W·kg^(-1)and excellent capacity retention of 84.4% fter 400 cycles at 1.0 A·g^(-1).This work introduces a novel strategy for designing carbon cathodes that enhances the electrochemical performance of PIHCs.

关键词： Template method N/O co-doping High specific surface area Carbon cathode Potassium-ion capacitors

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Protective mechanism of quercetin compounds against acrylamide-induced hepatotoxicity

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Food Science and Human Wellness 2024年第1期13卷 225-240页

作者： Linzi Li Xueying lei Lin Chen ya Ma Jun Luo Xuebo Liu Xinglian Xu Guanghong Zhou Xianchao Feng College of Food Science and Engineering Northwest A&F UniversityYangling 712100China College of Animal Science and Technology Northwest A&F UniversityYangling 712100China Synergetic Innovation Center of Food Safety and Nutrition Key Laboratory of Meat Processing and Quality ControlMinistry of EducationCollege of Food Science and TechnologyNanjing Agricultural UniversityNanjing 210095China

Quercetin compounds have antioxidant,anti-inflammatory and anticancer pharmacological *** exposure to acrylamide(AA)can cause liver injury and endanger human ***,whether quercetin compounds can attenuate AA-induced liver injury and the specific mechanism are not ***,we studied the mechanism and structure-activity relationship of quercetin compounds in reducing AA-induced hepatotoxicity in vivo and in *** vivo studies found that quercetin-like compounds protect against AAinduced liver injury by reducing oxidative stress levels,activating the Akt/m TOR signaling pathway to attenuate autophagy,and improving mitochondrial apoptosis and endoplasmic reticulum stress-mediated *** vitro studies found that quercetin compounds protected Hep G2 cells from AA by attenuating the activation of AA-induced autophagy,lowering reactive oxygen species(ROS)levels by exerting antioxidant effects and thus attenuating oxidative stress,increasing mitochondrial membrane potential(MMP),and improving apoptosis-related proteins,thus attenuating AA-induced ***,the conformational differences between quercetin compounds correlated with their protective capacity against AA-induced hepatotoxicity,with quercetin showing the best protective capacity due to its strongest antioxidant *** conclusion,quercetin compounds can protect against AA-induced liver injury through multiple pathways of oxidative stress,autophagy and apoptosis,and their protective capacity correlates with antioxidant activity.

关键词： Quercetin compounds Acrylamide Protection mechanism Oxidative stress Antioxidant activity

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Sky subtraction for LAMOST

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Research in Astronomy and Astrophysics 2017年第9期17卷 25-38页

作者： Zhong-Rui Bai Hao-Tong Zhang Hai-Long Yuan Guang-Wei Li Jian-Jun Chen ya-Juan lei Hui-Qin yang Yi-Qiao Dong Gang Wang Yong-Heng Zhao 1 University of Chinese Academy of Sciences Beijing 100049China Key Lab for Optical Astronomy National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100012China

Sky subtraction is a key technique in data reduction of multi-fiber spectra. Knowledge of characteristics related to the instrument is necessary to determine the method adopted in sky subtraction. In this study, we describe the sky subtraction method designed for the Large sky Area Multi-Object fiber Spectroscopic Telescope （LAMOST） survey. The method has been integrated into the LAMOST 2D Pipeline v2.6 and applied to data from LAMOST DR3 and later. For LAMOST, calibration using sky emission lines is used to alleviate the position-dependent （and thus time-dependent） ,-~ 4% fiber throughput uncertainty and small wavelength instability （0.1/~） during observation. Sky subtraction using principal component analysis （PCA） further reduces 25% of the sky line residual from OH fines in the red part of LAMOST spectra after the master sky spectrum, which is derived from a B-spline fit of 20 sky fibers in each spectrograph. Using this approach, values are adjusted by a sky emission line and subtracted from each fiber. Further analysis shows that our wavelength calibration accuracy is about 4.5 km s-1, and the averages of residuals after sky subtraction are about 3% for sky emission lines and 3% for the continuum region. The relative sky subtraction residuals vary with moonlight background brightness, and can reach as low as 1.5% for regions that have sky emission lines during a dark night. Tests on F stars with both similar sky emission line strength and similar object continuum intensity show that the sky emission line residual of LAMOST is smaller than that of the SDSS survey.

关键词： techniques: spectroscopic -- methods data analysis -- instrumentation spectrographs

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The neuroprotective role of Panax notoginseng saponins in APP/PS1 transgenic mice through the modulation of cerebrovascular

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Traditional Medicine Research 2020年第5期5卷 355-367页

作者： yan Tan Chen-Chen Song Zi-Hui Xu Fang He ya-Li Zhang ya-lei Wang Xue Wang Liang-Qin Wan Xu Wang Ling-Ling Qin Tong-Hua Liu Qian Hua Beijing University of Chinese Medicine Beijing 100029China Tianjin College University of Science and Technology BeijingTianjin 301830China

Background:Panax notoginseng saponins(PNS)is extracted from Sanqi(Panax notoginseng),which is a valuable herb and has been widely used in traditional Chinese medicine for the treatment of cerebrovascular diseases and *** has been proved to promote blood circulation and angiogenesis by inhibiting platelet *** our previous study,PNS accompanied with geniposide can prevent Alzheimer’s disease(AD).However,the efficacy of PNS and its potential mechanism in AD remain ***:Amyloid precursor protein/presenilin-1(APP/PS1)transgenic(Tg)mice were used as AD-like animal ***-type mice and APP/PS1 transgenic were administrated with saline solution while mice in PNS treatment group were administrated with PNS at a dosage of 17 mg/kg/day for three *** water maze(MWM)was applied to evaluate the spatial learning and memory and step-down test was used to evaluate the cognitive function.1%Thioflavin-S staining was used to calculate the average number amyloid plaques in cortex and ***31 staining was detected to observe the density of cerebrovascular in hippocampus areas and CD105 staining was further detected to evaluate *** Doppler PeriFlux 5000 was further measured the change of cerebrovascular blood *** was used to draw the molecular structures of five main ingredients of *** were used to estimate the potential targets of ***:By a bench of behavioral tests,PNS showed a better tendency in proving cognitive *** addition,the amyloid plaques in both cortex and hippocampus were significantly reduced after PNS intervention(P<0.05 and P<0.001 respectively).Furthermore,the density of cerebrovascular in the hippocampus areas was increased under PNS administration(P<0.001),which accompanied with angiogenesis in dentate gyrus areas and cerebrovascular blood flow promotion(P<0.05).By AlzPlatform docking serve,we screened five major ingredients of PNS-R1,Rd,Rb1,Re and *** screening

关键词： Alzheimer’s disease Angiogenesis Behavioral test Cerebrovascular blood flow Panax notoginseng saponins

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人力资源绩效评估中的博弈分析

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系统工程 2005年第8期23卷 96-98页

作者：雷亚萍西安理工大学工商管理学院

分析了现行的人力资源绩效评估体系中由于信息不对称引发的种种问题,提出在今后的人力资源评估中应重视评估主体与被评估主体间可形成的协调博弈,并由此提出了一个博弈模型与应当采取的一系列调整措施,为人力资源的评估提供了一定的理... 详细信息

分析了现行的人力资源绩效评估体系中由于信息不对称引发的种种问题,提出在今后的人力资源评估中应重视评估主体与被评估主体间可形成的协调博弈,并由此提出了一个博弈模型与应当采取的一系列调整措施,为人力资源的评估提供了一定的理论依据。

关键词：人力资源绩效评估信息不对称博弈分析

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Intermittent hypoxia is involved in gut microbial dysbiosis in type 2 diabetes mellitus and obstructive sleep apnea-hypopnea syndrome

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World Journal of Gastroenterology 2022年第21期28卷 2320-2333页

作者： Sha-Sha Tang Cheng-Hong Liang ya-lei Liu Wei Wei Xin-Ru Deng Xiao-yang Shi Li-Min Wang Li-Jun Zhang Hui-Juan Yuan Department of Endocrinology Henan Provincial Key Medicine Laboratory of Intestinal Microecology and DiabetesHenan Provincial People’s HospitalPeople’s Hospital of Zhengzhou UniversityZhengzhou 450003Henan ProvinceChina

BACKGROUND Obstructive sleep apnea(OSA)-hypopnea syndrome(OSAHS)has been recognized as a comorbidity of type 2 diabetes mellitus(T2DM);more than half of T2DM patients suffer from *** hypoxia(IH)plays an important role in metabolic diseases,such as obesity and OSAHS,through various mechanisms,including altering the gut microecological composition and ***,it is important to study the role of gut microbiota in T2DM patients with OSAHS,which has a high incidence and is prone to several *** To assess whether IH is involved in altering the fecal microbiome in T2DM patients with *** Seventy-eight participants were enrolled from Henan Province People’s Hospital and divided into healthy control(HC,n=26),T2DM(n=25),and T2DM+OSA(n=27)groups based on their *** fecal bacterial DNA of the research participants was extracted and subjected to 16S ribosomal RNA *** clinical indices,such as insulin resistance index,homocysteine(HCY)concentration,and the concentrations of inflammatory factors in the peripheral blood,were assessed and *** Group T2DM+OSA had the highest apnea-hypopnea index(AHI)(2.3 vs 3.7 vs 13.7),oxygen desaturation index(0.65 vs 2.2 vs 9.1),HCY concentration(9.6μmol/L vs 10.3μmol/L vs 13.81μmol/L)and C-reactive protein(CRP)concentrations(0.3 mg/L vs 1.43 mg/L vs 2.11 mg/L),and lowest mean oxygen saturation(97.05%vs 96.6%vs 94.7%)among the three *** and fifteen key differences in amplicon sequence variants were identified when comparing group T2DM+OSA with groups T2DM and HC,*** found progressively decreased levels of Faecalibacterium,Eubacterium,and Lachnospiraceae,and an increase in the level of Actinomyces,which strongly correlated with the HCY,CRP,fasting plasma glucose,and hemoglobin A1c concentrations,AHI,mean oxygen saturation,and insulin resistance index in group T2DM+OSA(P<0.05).CONCLUSION For T2DM patients with OSAHS,IH may be involved in selective

关键词： Gut microbiota Obstructive sleep apnea-hypopnea syndrome Type 2 diabetes mellitus Intermittent hypoxia Obstructive sleep apnea

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Mafic-ultramafic magma activity and copper-nickel sulfide metallogeny during Paleozoic in the Eastern Kunlun Orogenic Belt,Qinghai Province,China

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China Geology 2019年第4期2卷 467-477页

作者： Zhao-wei Zhang ya-lei Wang Chi-yuan Wang Bing Qian Wen-yuan Li Jiang-wei Zhang Min-xin You Key Laboratory for the Study of Focused Magmatism and Giant Ore Deposits Xi’an Center of China Geological SurveyMinistry of Natural ResourcesXi’an 710054China Natural Resources Department of Xinjiang Uygur Autonomous Region Urumqi 830000China Institute of Earth Sciences Chengdu University of GeosciencesChengdu 610059China

The Eastern Kunlun Orogenic Belt(EKOB)has a complex geological structure and diverse magmatic activities,which are closely related to the Qaidam Basin and the Tethys tectonic *** are at least 3 stages mafic-ultramafic rocks occurred in the Early Paleozoic in *** first stage is the Later-Silurian to Early Devonian,represented by the giant Xiarihamu super large magmatic Cu-Ni deposit,containing about 1.18 million metric tons(Mt)of nickel with average grades of 0.65%Ni,and its age of ore-forming pyroxene peridotite is 411 Ma;The second stage is the Early Carboniferous,represented by the large Shitoukengde magmatic Cu-Ni sulfide deposit,and its ore-forming age of the olivine websterite is 334 Ma;The third stage of mafic-ultramafic rocks occurred mainly during the Middle-Late Triassic,represented by Xiaojianshan,Lalinggaoli,and Kaimuqi complexes,and no economical ore bodies have been found in this *** authors summarized the difference between the ore-bearing and the nonmineralized mafic-ultramafic rocks in the *** olivine of the ore-bearing complexes contains higher MgO and SiO2 content but lower FeO and CaO contents,and the clinopyroxene of ore-bearing complexes contains lower FeO and CaO *** sulfur contamination is key to the formation of the giant Xiarihamu Ni deposit,and crustal sulfur contamination degree of the giant magmatic Ni deposit is higher than that of large Ni *** above indicators could guide the exploration and evaluation of similar deposits in the EKOB.

关键词： Early Devonian Early Carboniferous Mafic-ultramafic complexes Cu-Ni deposit Mineral exploration engineering Eastern Kunlun orogenic belt Qinghai China

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职业本科背景下创新型技能人才培养路径研究

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承德石油高等专科学校学报 2024年第2期26卷 5-8页

作者：邱亚雷杨威吴二刚王翊康王艺博郭霄柳子辰河北体育学院纪检监察室河北石家庄050000 河北石油职业技术大学办公室河北承德067000 河北铁路运输学校学生处河北石家庄050000 河北医科大学后勤处河北石家庄050000 石家庄珍爱网高级网络数据分析室河北石家庄050000

中国职业本科教育作为培养创新型技能人才而言,具有远大的发展前途和美好的发展前景,当前我国大力倡导建设创新型国家和培养创新型人才,职业本科教育作为一个重要载体具有不可替代的作用。着重从培养创新型技能人才的培养路径入手,通过... 详细信息

中国职业本科教育作为培养创新型技能人才而言,具有远大的发展前途和美好的发展前景,当前我国大力倡导建设创新型国家和培养创新型人才,职业本科教育作为一个重要载体具有不可替代的作用。着重从培养创新型技能人才的培养路径入手,通过建立相应的指标评价体系,提供了目前阶段切实可行的创新型技能人才培养方法。

关键词：职业本科教育创新型技能人才评价体系培养方法

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混合智能故障诊断与预示技术的应用进展

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振动与冲击 2011年第9期30卷 129-135页

作者：雷亚国何正嘉西安交通大学机械制造系统工程国家重点实验室西安710049

为了对大型复杂关键设备进行有效的状态监测和故障诊断,综合运用多种人工智能技术和现代信号处理方法的混合智能故障诊断与预示技术得到国内外学者的高度重视和广泛研究。在研究大量相关文献的基础上,概括了混合智能故障诊断与预示技术... 详细信息

为了对大型复杂关键设备进行有效的状态监测和故障诊断,综合运用多种人工智能技术和现代信号处理方法的混合智能故障诊断与预示技术得到国内外学者的高度重视和广泛研究。在研究大量相关文献的基础上,概括了混合智能故障诊断与预示技术的广义内涵;综述了国内外研究现状;分析指出了当前研究中存在的关键问题;针对目前的研究现状和存在问题,最后讨论了混合智能故障诊断与预示技术的发展趋势。

关键词：混合智能故障诊断与预示技术大型复杂关键设备信号处理

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风力发电与电力市场

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电力系统自动化 2005年第10期29卷 1-5页

作者：雷亚洲 Gordon Lightbody 爱尔兰国家电网公司 University College Cork

在介绍现代风力发电及其控制技术、欧美国家与风电有关的电网导则以及风电在欧洲自由电力市场中的角色的基础上,阐述了风力发电遇到的主要问题、技术发展趋势及其在电力市场中的竞争潜力。

关键词：电力市场电网导则风力发电电力电子

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