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Hierarchical Fe_(x)Bi_(2−x)S_(3) solid solutions for boosted supercapacitor performance

Nano Research 2024年第5期17卷 3997-4005页

作者： Fengming Zhou xiaodong Wang Ruijie {1. xiaoyu Li Qi Zhang Zhenjiang Li Yunmei Du Zhenyu xiao Lei Wang International Cooperation United Laboratory of Eco-chemical Engineering and Green Manufacturing College of Chemistry and Molecular EngineeringQingdao University of Science and TechnologyQingdao 266042China Technology Innovation Center of Battery Safety and Energy Storage Technology QingdaoInternational Science and Technology Cooperation Base of QingdaoCollege of Environment and Safety EngineeringQingdao University of Science and TechnologyQingdao 266042China

For the pursuit of high energy supercapacitors,the development of high performance pseudocapacitance or battery-type negative electrode material is urgently needed to make up for the capacity shortage of commercial electric double layer capacitor(EDLC)type ***,a porous and defect-rich Fe_(x)Bi_(2-x)S_(3) solid solution structure is firstly constructed by employing Fe-doped Bi_(2)O_(2)CO_(3) porous nanosheets as a precursor,which presents dramatically increased energy storage performance than Bi_(2)S_(3) and FeS_(2) *** the optimized Fe_(x)Bi_(2-x)S_(3) solid solution(FeBiS-60%),the Fe solute is free and random dispersed in Bi_(2)S_(3) framework,which can effectively modulate the electronic structure of Bi element and introduce rich-defect due to the existence of Fe(II).Meanwhile,the FeBiS-60%,constructed by pore nanosheets that are assembled by self-supported basic nanorod units,presents rich mesoporous channels for fast mass transfer and abundant active sites for promoting capacity ***,a high capacitance of 832.8 F·g^(-1. at a current density of 1.A·g^(-1. is achieved by the FeBiS-60%***,a fabricated Ni3S_(2)@Co_(3)S_(4)(NCS)//FeBiS-60%hybrid supercapacitor device delivers an outstanding energy density of 85.33 Wh·kg^(-1. at the power density of 0.799 kW·kg^(-1.,and ultra-long lifespan of remaining 86.7%initial capacitance after 8700 cycles.

关键词： supercapacitor solid solutions defect structure hierarchical structure Bi_(2)S_(3)

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Optimized online filter stack spectrometer for ultrashort X-ray pulses

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Nuclear Science and Techniques 2024年第5期35卷 85-98页

作者： Jia-Xing Wen Ge Ma Ming-Hai Yu Yu-Chi Wu Yong-Hong Yan Shao-Yi Wang huai-Zhong Gao Lu-Shan Wang Yu-Gang Zhou Qiang Li Yue Yang Fang Tan {1.-Hui Zhang Jie Zhang Wen-Bo Mo jing-Qin Su Wei-Min Zhou Yu-Qiu Gu Ming Zeng Zong-Qing Zhao Science and Technology on Plasma Physics Laboratory Laser Fusion Research CenterCAEPMianyang 621900China Department of Engineering Physics Tsinghua UniversityBeijing 100084China Key Laboratory of Particle and Radiation Imaging(Tsinghua University) Ministry of EducationBeijing 100084China School of Information Engineering Southwest University of Science and TechnologyMianyang 621010China

Currently,with the advent of high-repetition-rate laser-plasma experiments,the demand for online diagnosis for the X-ray spectrum is increasing because the laser-plasma-generated X-ray spectrum is very important for characterizing electron dynamics and *** this study,scintillators and silicon PIN(P-type–intrinsic-N-type semiconductor)diodes were used to construct a wideband online filter stack *** X-ray sensor and filter arrangement was optimized using a genetic algorithm to minimize the condition number of the response ***,the unfolding error was significantly reduced based on numerical *** detector responses were quantitatively calibrated by irradiating the scintillator and PIN diode with various nuclides and comparing the measuredγ-ray peaks.A prototype 1.-channel spectrometer was developed by integrating an X-ray detector with front-and back-end *** prototype spectrometer could record X-ray pulse signals at a repetition rate of 1.***,an optimized spectrometer was employed to record the real-time spectra of laser-driven bremsstrahlung *** optimized spectrometer offers a compact solution for spectrum diagnostics of ultrashort X-ray pulses,exhibiting improved accuracy in terms of spectrum measurements and repetition rates,and could be widely used in next-generation high-repetition-rate high-power laser facilities.

关键词： Filter stack spectrometer Laser plasma diagnostics X-ray diagnostics Scintillator PIN diode

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Strengthening and control of second-phase particle precipitation in ferritic/austenitic/martensitic heat-resistant alloys:a review

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Journal of Iron and Steel Research International 2024年第1期31卷 3-23页

作者： Xue-cheng Peng Han-jie Guo Xin-fang Zhang Yi-wa Luo Ye Sun {1. Guo Rong-guang Yang xiao-dan Zheng School of Metallurgical and Ecological Engineering University of Science and Technology Beijing(USTB)Beijing100083China Beijing Key Laboratory of Special Melting and Preparation of High-End Metal Materials University of Science and Technology Beijing(USTB)Beijing100083China Beijing Shougang Gitane New MATERIALS Co. Ltd.Beijing102206China

Heat-resistant alloys with excellent mechanical properties are widely used in various fields,and further improvement in their properties is essential to meet the requirements in new-generation advanced supercritical boilers,nuclear reactors,superheaters,and other new materials *** effectively enhance the comprehensive performance of heat-resistant alloys,second-phase particle strengthening has been widely studied,and in the face of different service envi-ronments of advanced heat-resistant steels,the selection of suitable second-phase particles is essential to maximize the performance of these *** this end,three major types of reinforcing phases in heat-resistant alloys such as carbides,rare earth oxides,and intermetallic compounds are summarized.A comparative analysis of the precipitation behavior of the reinforcing phases with different types as well as the risks and means of controlling their use in service,is *** parameters for the application of various types of second-phase particles in heat-resistant alloys are provided to support the design and preparation of new ultrahigh-performance heat-resistant alloys.

关键词： Heat-resistant alloy Second-phase particle Carbide Rare earth oxide Intermetallic compound Strengthening

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Mitochondrial carrier homolog 2 increases malignant phenotype of human gastric epithelial cells and promotes proliferation,invasion,and migration of gastric cancer cells

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World Journal of Gastrointestinal Oncology 2024年第3期16卷 991-1005页

作者： jing-Wen Zhang Ling-Yan Huang Ya-Ning Li Ying Tian Jia Yu {1.-Fei Wang School of Basic Medical Science NHC Key Laboratory of Metabolic Cardiovascular Diseases ResearchNingxia Medical UniversityYinchuan 750004Ningxia Hui Autonomous RegionChina Department of Pathology General Hospital of Ningxia Medical UniversityYinchuan 750004Ningxia Hui Autonomous RegionChina School of Clinical Medicine Ningxia Medical UniversityYinchuan 750004Ningxia Hui Autonomous RegionChina Department of Pathology North China University of Science and Technology Affiliated HospitalTangshan 063000Hebei ProvinceChin

BACKGROUND The precise role of mitochondrial carrier homolog 2(MTCH2)in promoting malignancy in gastric mucosal cells and its involvement in gastric cancer cell metastasis have not been fully *** To determine the role of MTCH2 in gastric *** We collected 65 samples of poorly differentiated gastric cancer tissue and adjacent tissues,constructed MTCH2-overexpressing and MTCH2-knockdown cell models,and evaluated the proliferation,migration,and invasion of human gastric epithelial cells(GES-1.and human gastric cancer cells(AGS)*** mito-chondrial membrane potential(MMP),mitochondrial permeability transformation pore(mPTP)and ATP fluorescence probe were used to detect mitochondrial *** function and ATP synthase protein levels were detected via Western *** The expression of MTCH2 and ATP2A2 in gastric cancer tissues was significantly greater than that in adjacent *** of MTCH2 promoted colony formation,invasion,migration,MMP expression and ATP production in GES-1.and AGS cells while upregulating ATP2A2 expression and inhibiting cell apoptosis;knockdown of MTCH2 had the opposite effect,promoting overactivation of the mPTP and promoting *** MTCH2 can increase the malignant phenotype of GES-1.cells and promote the proliferation,invasion,and migration of gastric cancer cells by regulating mitochondrial function,providing a basis for targeted therapy for gastric cancer cells.

关键词： Gastric cancer Mitochondrial carrier homolog 2 ATP synthase ATP2A2 Mitochondrial permeability transformation pore

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铀矿区超富集植物可见及短波近红外光谱判别研究

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光谱学与光谱分析 2024年第7期44卷 1813-1819页

作者：肖怀春刘阳魏冰雪高家榕刘燕德肖慧东华理工大学江西省核地学数据科学与系统工程技术研究中心江西南昌330013 华东交通大学智能机电装备创新研究院江西南昌330013

随着各国对核能需求的剧增,铀矿勘探成为核能供给中关键环节。铀矿勘探方法主要有放射性物探测量、地球化学测量等传统方法,大都存在探测数据不准确、效率低等的不足。采用近红外光谱技术,结合化学计量学,探索铀超富集植物筛选及确定的... 详细信息

随着各国对核能需求的剧增,铀矿勘探成为核能供给中关键环节。铀矿勘探方法主要有放射性物探测量、地球化学测量等传统方法,大都存在探测数据不准确、效率低等的不足。采用近红外光谱技术,结合化学计量学,探索铀超富集植物筛选及确定的可行性。通过铀矿区植物生长情况及特性调查挑选超富集植物,利用近红外光谱分析仪获取不同区域其叶片综合光谱,比较分析光谱响应关系。发现两种超富集植物的吸收峰位于650~700和950~1.50 nm两个波段内,前一个波段为叶绿素的吸收峰主要由C—O与C—H键伸缩振动的组合频产生。后一个波段是水的吸收峰主要由O—H键弯曲振动5级倍频导致。通过PCA与SPA选择特征变量,将两种样本分别按照3∶1.比例随机划分为训练与预测两部分,结合PLS和LSSVM两种方法构建超富集植物铀富集检测模型,并对比预测效果。发现基于PLS的狗尾草铀富集检测模型效果最佳,其判别正确率高达1.0%,RMSEP为0.1.5,R^(2)为0.946。两种建模方法中狗尾草检测模型均优于辣蓼,可能是狗尾草富集系数高于辣蓼,导致其铀矿区叶片铀含量浓度高于非铀矿区。结果表明,近红外光谱技术联合偏最小二乘法建立的超富集植物铀富集检测模型效果最好,很好的对铀超富集植物进行无损识别,从而筛选并确定之是可行的。该方法为废铀矿区生态修复提供重要参考,同时为利用特异性、指示性植物寻找铀矿提供新思路。

关键词：铀矿超富集植物铀富集近红外光谱偏最小二乘

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Effect of magnetic resonance imaging in liver metastases

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World Journal of Gastroenterology 2024年第1期30卷 112-114页

作者： Xing-Liang Huang xiao-Dong Wang Zhao-Miao Gong Yan-Feng Zheng {1.-Xin Mao Department of Science and Education Dianjiang People's Hospital of ChongqingChongqing 408399China Department of Science and Industry Chongqing Medical and Pharmaceutical CollegeChongqing 400030China

This letter to the editor is a commentary on a study titled"Liver metastases:The role of magnetic resonance imaging."Exploring a noninvasive imaging evaluation system for the biological behavior of hepatocellular carcinoma(HCC)is the key to achieving precise diagnosis and treatment and improving *** review summarizes the role of magnetic resonance imaging in the detection and evaluation of liver metastases,describes its main imaging features,and focuses on the added value of the latest imaging tools(such as T1.weighted in phase imaging,T1.weighted out of phase imaging;diffusion-weighted imaging,T2 weighted imaging).In this study,I investigated the necessity and benefits of gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid for HCC diagnostic testing and prognostic evaluation.

关键词： Liver metastases Magnetic resonance imaging Liver-specific contrast agents Gadolinium-ethoxybenzyl-diethylenetriamine pentaacetic acid Hepatocellular carcinoma Hepatobiliary contrast agents

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Comparative study of nudged elastic band and molecular dynamics methods for diffusion kinetics in solid-state electrolytes

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Chinese Physics B 2024年第8期33卷 96-100页

作者：林啊鸣石晶魏苏淮孙宜阳 State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 201899China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Department of Physics Jiangxi Normal UniversityNanchang 330022China Eastern Institute of Technology Ningbo 315200China

Considerable efforts are being made to transition current lithium-ion and sodium-ion batteries towards the use of solid-state *** methods,specifically nudged elastic band(NEB)and molecular dynamics(MD)methods,provide powerful tools for the design of solid-state *** MD method is usually the choice for studying the materials involving complex multiple diffusion paths or having disordered ***,it relies on simulations at temperatures much higher than working *** paper studies the reliability of the MD method using the system of Na diffusion in MgO as a *** carefully study the convergence behavior of the MD method and demonstrate that total effective simulation time of 1. ns can converge the calculated diffusion barrier to about 0.01.*** calculated diffusion barrier is 0.31.eV from both *** diffusion coefficients at room temperature are 4.3×1.^(-9) cm^(2)⋅s^(−1. and 2.2×1.^(-9) cm^(2)⋅s^(−1.,respectively,from the NEB and MD *** results justify the reliability of the MD method,even though high temperature simulations have to be employed to overcome the limitation on simulation time.

关键词： nudged elastic band method molecular dynamics solid electrolyte ion transport density func-tional theory

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Synthesis and Characterization of β-Cyclodextrin Modified Biochar Environmental Remediation Materials

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Journal of Materials Science and Chemical Engineering 2024年第4期12卷 42-52页

作者： Qing Guo xiao Wang Wanke {1. xiaoyan Wang jing Yuan Qianfeng Zhang Institute of Molecular Engineering and Applied Chemistry Anhui University of Technology Ma&#8217anshan China Department of Civil Engineering Tongling University Tongling China Department of Civil Engineering Manitoba University Winnipeg Canada

In this paper, biochar (BC) was used as raw material, activated by deionizing aqueous solution, NaCl solution, CA solution and HCl solution respectively. Epichlorohydrin (EPI) was used as crosslinking agent, and β-cyclodextrin (β-CD) was used to modify biochar (BC). The prepared modified biochar materials were labeled with β-CDBC, β-CDBC-Na, β-CDBC-CA and β-CDBC-H, respectively. The infrared spectrum, X-ray diffractometer, scanning electron microscope and specific surface area of the four modified materials were tested. The results showed that the C-O stretching vibration peak at 1.20 cm−1./sup> of the modified materials was slightly offset compared with that of biochar. The characteristic absorption peaks of XRD pattern decrease obviously at 2θ = 26.7˚ and 29.5˚. It can be obviously observed on the electron microscope image that the surface is loaded or formed clathrates, and BET data and graphs also show that the specific surface area of the modified biochar is larger. Therefore, β-cyclodextrin successfully modified biochar and formed clathrates on the surface of biochar or was loaded in the pore structure of biochar, especially β-CDBC-CA achieved better modification effect. Because biochar and β-cyclodextrin raw materials are cheap, easy to prepare and green, and less prone to secondary pollution, it has a good advantage in environmental governance.

关键词： Biochar Β-Cyclodextrin Modification Clathrate Green Environmental Protection

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Association of Mosaic Chromosomal Alterations and Genetic Factors with the Risk of Cirrhosis

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Journal of Clinical and Translational Hepatology 2024年第6期12卷 562-570页

作者： Xinyuan Ge Lu Zhang Maojie liu {1. Wang Xin Xu Yuqian Yan Chan Tian Juan Yang Yang Ding cheng{1. Yu jing Lu Longfeng Jiang Qiang Wang Qun Zhang Ci Song Department of Epidemiology China International Cooperation Center on Environment and Human HealthCenter for Global HealthSchool of Public HealthNanjing Medical UniversityNanjingJiangsuChina The Dumont-UCLA Transplant Center Division of Liver and Pancreas TransplantationDepartment of SurgeryDavid Geffen School of Medicine at UCLALos AngelesCAUSA Department of Health Promotion Center Jiangsu Province Hospital and Nanjing Medical University First Affiliated HospitalNanjingJiangsuChina Department of Infectious Disease The First Affiliated Hospital of Nanjing Medical UniversityNanjingJiangsuChina Department of Clinical Science Intervention and Technology(CLINTEC)Karolinska InstitutetStockholmSweden Changzhou Medical Center Nanjing Medical UniversityNanjingJiangsuChina Research Units of Cohort Study on Cardiovascular Diseases and Cancers Chinese Academy of Medical SciencesBeijingChina Collaborative Innovation Center for Cancer Personalized Medicine Nanjing Medical UniversityNanjingJiangsuChina

Background and Aims:Age-related mosaic chromosomal alterations(mCAs)detected from genotyping of blood-de-rived DNA are structural somatic variants that indicate clonal *** study aimed to investigate whether mCAs contribute to the risk of cirrhosis and modify the effect of a polygenic risk score(PRS)on cirrhosis risk ***:mCA call sets of individuals with European ancestry were obtained from the UK *** PRS was constructed based on 1. susceptible single-nucleotide poly-morphisms for *** proportional hazard models were applied to evaluate the associations between mCAs and cirrhosis ***:Among 448,645 individuals with a median follow-up of 1..5 years,we identified 2,681.cas-es of cirrhosis,1.775 cases of compensated cirrhosis,and 1.706 cases of decompensated *** to non-carriers,individuals with copy-neutral loss of heterozygosity mCAs had a significantly increased risk of cirrhosis(hazard ratio(HR)1.42,95%confidence interval(CI)1.1.-1.81..This risk was higher in patients with expanded cell fractions of mCAs(cell fractions≥1.%*** fractions1.%),especially for the risk of decompensated cirrhosis(HR 2.03[95%CI 1.09-3.78]vs.1.1.[0.80-1.64]).In comparison to non-carriers of mCAs with low genetic risk,individuals with expanded copy-neutral loss of heterozygosity and high genetic risk showed the highest cirrhosis risk(HR5.39[95%CI 2.41.1..07]).Conclusions:The presence of mCAs is associated with increased susceptibility to cirrhosis risk and could be combined with PRS for personalized cirrhosis risk stratification.

关键词： UK Biobank Cirrhosis Mosaic chromosomal alterations Polygenic risk score Genetic susceptibility Interaction effect

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Human-like adrenal features in Chinese tree shrews revealed by multi-omics analysis of adrenal cell populations and steroid synthesis

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Zoological Research 2024年第3期45卷 617-632页

作者： jing-Hang Jiang Yi-Fu Wang Jie Zheng Yi-Ming Lei Zhong-Yuan {1. Yi Guo Ya-Jie Guo Bing-Qian Guo Yu-Fang Lv Hong-Hong Wang Juan-Juan Xie Yi-Xuan liu Ting-Wei Jin Bi-Qi Li xiao-Shu Zhu Yong-Hua Jiang Zeng-Nan Mo Center for Genomic and Personalized Medicine Guangxi Collaborative Innovation Center for Genomic and Personalized MedicineGuangxi Key Laboratory for Genomic and Personalized MedicineGuangxi Medical UniversityNanningGuangxi 530021China Department of Urology First Affiliated Hospital of Guangxi Medical UniversityNanningGuangxi 530021China Reproductive Medicine Center Jingmen People’s HospitalJingChu University of Technology Affiliated Central HospitalJingmenHubei 448000China School of Computer Science and Engineering Yulin Normal UniversityYulinGuangxi 537000China Collaborative Innovation Centre of Regenerative Medicine and Medical BioResource Development and Application Co-constructed by the Province and Ministry Guangxi Medical UniversityNanningGuangxi 530021China Department of Pathology Second Affiliated Hospital of Guangxi Medical UniversityNanningGuangxi 530007China Department of Obstetrics and Gynecology Second Affiliated Hospital of Guangxi Medical UniversityNanningGuangxi 530007China

The Chinese tree shrew(Tupaia belangeri chinensis)has emerged as a promising model for investigating adrenal steroid synthesis,but it is unclear whether the same cells produce steroid hormones and whether their production is regulated in the same way as in ***,we comprehensively mapped the cell types and pathways of steroid metabolism in the adrenal gland of Chinese tree shrews using single-cell RNA sequencing,spatial transcriptome analysis,mass spectrometry,and *** compared the transcriptomes of various adrenal cell types across tree shrews,humans,macaques,and *** showed that tree shrew adrenal glands expressed many of the same key enzymes for steroid synthesis as humans,including CYP1.B2,CYP1.B1.CYB5A,and *** analysis confirmed the production of aldosterone,cortisol,and dehydroepiandrosterone but not dehydroepiandrosterone sulfate in the tree shrew adrenal ***,genes in adrenal cell types in tree shrews were correlated with genetic risk factors for polycystic ovary syndrome,primary aldosteronism,hypertension,and related disorders in humans based on genome-wide association ***,this study suggests that the adrenal glands of Chinese tree shrews may consist of closely related cell populations with functional similarity to those of the human adrenal *** comprehensive results(publicly available at http://***:1.245/scAGMap/)should facilitate the advancement of this animal model for the investigation of adrenal gland disorders.

关键词： Tree shrew Adrenal gland Dehydroepiandrosterone Genome-wide association studies Disease model

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