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Double-confined nanoheterostructure Sb/Sb_(2)S_(3)@Ti_(3)C_(2)T_(x)@C toward ultra-stable Li-/Na-ion batteries

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Rare Metals 2024年第5期43卷 2067-2079页

作者： Dan Wang qun ma Huan He Zhi-Yuan Wang Run-Guo Zheng Hong-Yu Sun Yan-Guo Liu Chun-Li Liu School of materials Science and Engineering Northeastern UniversityShenyang110819China School of Resources and materials Northeastern University at QinhuangdaoQinhuangdao 066004China Key Laboratory of Dielectric and Electrolyte Functional material Hebei Province Qinhuangdao 066004China Department of Physics and Oxide Research Center Hankuk University of Foreign StudiesYongin 17035Korea

Antimony-based materials with high capacities and moderate potentials are promising anodes for lithium-/-sodium-ion ***,their tremendous volume expansion and inferior conductivity lead to poor structural stability and sluggish reaction ***,a doubleconfined nanoheterostructure Sb/Sb_(2)S_(3)@Ti_(3)C_(2)T_(x)@C has been fabricated through a solvothermal method followed by low-temperature heat *** dual protection of“MXene”and“carbon”can better accommodate the volume expansion of Sb/Sb_(2)S_(3).The strong covalent bond(Ti-S,Ti-O-Sb,C-O-Sb)can firmly integrate Sb-based material with Ti_(3)C_(2)T_(x)and carbon,which significantly improves the structure *** addition,the carbon layer can restrain the oxidation of MXenes,and the nano-Sb/Sb_(2)S_(3)can facilitate electron/ion transport and suppress the restacking of *** heterogeneous interface between Sb and Sb_(2)S_(3)can further promote interfacial charge *** MXene-Sb/Sb_(2)S_(3)@C-1 with the optimal Sb content shows high specific capacities,comparable rate properties and ultra-stable cycling performances(250 m Ah·g^(-1)after 2500 cycles at 1 A·g^(-1)for sodium-ion batteries).Ex situ X-ray diffractometer(XRD)test reveals the storage mechanism including the conversion and alloying process of MXene-Sb/Sb_(2)S_(3)@*** voltammetry(CV)test results demonstrate that the pseudocapacitance behavior is dominant in MXene-Sb/Sb_(2)S_(3)@C-1,especially at large *** design paves the way for exploring high-performance alloy-based/conversion-type anode for energy storage devices.

关键词： Sb/Sb_(2)S_(3) MXene Carbon Anode Lithium-ion batteries Sodium-ion batteries

Perianal tuberculous ulcer with active pulmonary,intestinal and orificial tuberculosis:A case report

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World Journal of Radiology 2024年第8期16卷 356-361页

作者： Bao Yuan Chao-qun ma Department of General Surgery Jiangyin Hospital Affiliated to Nanjing University of Chinese MedicineWuxi 214400Jiangsu ProvinceChina Department of General Surgery Affiliated Hospital of Nanjing University of Chinese MedicineNanjing 210029Jiangsu ProvinceChina

BACKGROUND Orificial tuberculosis is a rare type of tuberculosis,which is easy to be misdiagnosed,and can cause great damage to the perianal skin and *** diagnosis can avoid further erosion of the perianal muscle tissue by tuberculosis *** SUMmaRY Here,we report a case of disseminated tuberculosis in a 62-year-old male patient with a perianal tuberculous ulcer and active pulmonary tuberculosis,intestinal tuberculosis and orificial *** is an extremely rare case of cutaneous tuberculosis of the anus,which was misdiagnosed for nearly a *** patient received conventional treatment in other medical institutions,but specific treatment was ***,proper diagnosis and treatment with standard anti-tuberculosis drugs for one year led to complete *** For skin ulcers that do not heal with repeated conventional treatments,consider ulcers caused by rare bacteria,such as Mycobacterium tuberculosis.

关键词： Pulmonary tuberculosis Orificial tuberculosis Perianal tuberculous ulcer Mycobacterium tuberculosis Case report

Belowground Bud Bank Is Insensitive to Short-Term Nutrient Addition in the Meadow Steppe of Inner Mongolia

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Phyton-International Journal of Experimental Botany 2024年第6期93卷 1129-1141页

作者： Jin Tao Jiatai Tian Dongmei Li Jinlei Zhu qun ma Zhiming Zhang Jungang Chen Yipeng Liu Jianqiang Qian College of Forestry Henan Agricultural UniversityZhengzhou450002China Institute of Ecological Conservation and Restoration Chinese Academy of ForestryBeijing100093China Institute of Applied Ecology Chinese Academy of SciencesShenyang110164China Institute of Botany Chinese Academy of SciencesBeijing100093China Liaoning Metallurgical Geological Exploration Research Institute Co. Anshan114038China

Human activities and industrialization have signiﬁcantly increased soil nutrients,such as nitrogen(N)and phos-phorus(P),profoundly impacting the composition and structure of plant community,as well as the ecosystem functions,especially in nutrient-limited ***,as the key propagule pool of perennial grasslands,how belowground bud bank and its relationship with aboveground vegetation respond to short-term changes in soil nutrients was still *** this study,we conducted a short-term(2021–2022)soil fertilization experiment with N addition(10 g N m^(-2) yr^(-1))and P addition(5 g N m^(-2) yr^(-1))in the meadow steppe of Inner Mongolia,China,to explore the responses of belowground bud bank,aboveground shoot population and their relationships(represented by the ratio of bud to shoot density-meristem limitation index(MLI))for the whole community and three plant functional groups(perennial rhizomatous grasses-PR,perennial bunchgrasses-PB,and perennial forbs-PF)to nutrient *** short-term nutrient addition had no signiﬁcant inﬂuences on belowground bud density,aboveground shoot density,and MLI of the whole plant *** functional groups showed different responses to soil ***ﬁcally,N addition signiﬁcantly increased the bud density and shoot density of PR,especially in combination with P addition.N addition reduced the shoot density of PF but had no inﬂuence on its bud density and *** addition had signiﬁcant effects on the three indicators of *** study indicates that the belowground bud bank and its relationship with aboveground vegetation in temperate meadow steppe are insensitive to short-term soil fertilization,but plant functional groups exhibit speciﬁc responses in terms of population regeneration,which implies that plant community composition and ecosystem functions will be changed under the ongoing global change.

关键词： Clonal trait population regeneration community dynamics soil resource availability nitrogen addition

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良庄煤矿通风系统可靠性预警指标体系的构建

山东煤炭科技 2024年第7期42卷 62-66页

作者：马群山东良庄矿业有限公司山东泰安271219

针对良庄煤矿通风系统不够合理、减灾抗灾能力较差,不能达到矿井灾害防治的要求,运用系统工程的观点,构建通风系统可靠性预警指标体系,提出了对矿井通风系统分区式监测管理方法。该方法将矿井通风系统开采区域划分为三个安全分区进行矿... 详细信息

针对良庄煤矿通风系统不够合理、减灾抗灾能力较差,不能达到矿井灾害防治的要求,运用系统工程的观点,构建通风系统可靠性预警指标体系,提出了对矿井通风系统分区式监测管理方法。该方法将矿井通风系统开采区域划分为三个安全分区进行矿井通风系统逻辑分析,分析关键分支选取原则和方法,确定10条关键分支;利用粗糙集-神经网络的方法,给出关键分支关键测点的预警指标值。研究结果对于保障矿井的安全高效开采具有重要的理论与现实意义。

关键词：通风系统可靠性关键分支指标体系

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大型外筒钢筋混凝土交叉倾斜柱施工技术探析

江西建材 2024年第5期 236-238页

作者：马群六盘水市钟山水务投资有限责任公司

文中以某高层建筑为例，分析了大型外筒钢筋混凝土交叉倾斜柱施工技术，并对工后效果进行了评估。结果表明，模板的垂直度为1.2 mm,模板的水平度为0.4 mm,斜柱钢筋角度误差为0.2°,斜柱的垂直度为1.4 mm,斜柱的水平度为0.6 mm,背楞焊接... 详细信息

文中以某高层建筑为例，分析了大型外筒钢筋混凝土交叉倾斜柱施工技术，并对工后效果进行了评估。结果表明，模板的垂直度为1.2 mm,模板的水平度为0.4 mm,斜柱钢筋角度误差为0.2°,斜柱的垂直度为1.4 mm,斜柱的水平度为0.6 mm,背楞焊接变形量为0.7 mm,斜柱混凝土的抗压强度为55.1 MPa,所有施工技术环节的检测指标均满足设计要求，具有良好的施工效果及经济效益。

关键词：建筑工程交叉斜柱外筒钢筋混凝土

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塔里木盆地深层地下卤水全效开发利用新路径

天然气工业 2024年第1期44卷 186-191页

作者：张涛高琦赵冬立尹子钊马群中国石油大学(华东)经济管理学院中国石油塔里木油田公司新能源事业部

随着油气开采向深层、超深层进发,伴生地下卤水的合理处理成为油气田安全高效绿色开发必须关注的重要的问题,其对油气田的稳定生产、经济效益和区域环境保护都有着重要的影响。为此,以塔里木盆地中国天然气主产区之一的KS气田为例,在分... 详细信息

随着油气开采向深层、超深层进发,伴生地下卤水的合理处理成为油气田安全高效绿色开发必须关注的重要的问题,其对油气田的稳定生产、经济效益和区域环境保护都有着重要的影响。为此,以塔里木盆地中国天然气主产区之一的KS气田为例,在分析深层地下卤水处理面临挑战的基础上,提出了“一水分治、深度处理、分治回用”的深层油气田地下卤水电解全效利用新路径,并对其效益进行了系统分析。研究结果表明:①KS气田地下卤水体量大、矿化度较高,具有进一步全效开发利用的价值,气田所处区域太阳能资源丰富但目前尚未被全效利用,基于地下卤水电解全效利用新思路,可实现“废水”“废电”的联合应用;②分离所得的淡水一部分可应用于生态农业、碳汇林业和荒漠化回灌,另一部分可用于回注处理,具有良好的环保效益;③分离所得的淡水和浓缩液,可进一步进行电解水制氢和浓缩液电解获取有价金属,可实现可观的经济效益。结论认为,地下卤水电解全效开发利用在KS气田成功应用后,可推广复制到具有类似条件的其他油气田,为实现资源绿色循环利用、促进降本增效和低碳排放提供了新的思路和办法,有助于油气田的科学效益全面开发。

关键词：塔里木盆地深层地下卤水零碳电解全效利用发展路径新思路

真武汤合五皮饮加减对糖尿病肾病患者肾脏纤维化、肾小管氧化损伤和PI3K/Akt/NF-κB信号通路的影响

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中国医院用药评价与分析 2024年第4期24卷 451-454,458页

作者：周丰宝马群中国人民解放军海军青岛特勤疗养中心中医科山东青岛266071

目的:观察真武汤合五皮饮加减对糖尿病肾病患者肾脏纤维化、肾小管氧化损伤和磷脂酰肌醇3激酶(PI3K)/蛋白激酶B(Akt)/核因子κB(NF-κB)信号通路的影响。方法:选择2021年2月至2023年2月该院收治的糖尿病肾病患者100例,所有患者均采用随... 详细信息

目的:观察真武汤合五皮饮加减对糖尿病肾病患者肾脏纤维化、肾小管氧化损伤和磷脂酰肌醇3激酶(PI3K)/蛋白激酶B(Akt)/核因子κB(NF-κB)信号通路的影响。方法:选择2021年2月至2023年2月该院收治的糖尿病肾病患者100例,所有患者均采用随机数字表法分组。基础干预组50例患者(脱落3例,最终纳入47例)给予常规西医治疗,观察组50例患者(脱落2例,最终纳入48例)在基础干预组的基础上给予真武汤合五皮饮加减治疗。治疗前后对两组患者进行中医证候评价,检测谷胱甘肽过氧化物酶(GSH-Px)、结缔组织生长因子(CTGF)、活性氧(ROS)、糖化血红蛋白(HbA1c)、透明质酸(HA)、层粘连蛋白(LN)、尿白蛋白排泄率(UAE)、尿β2-微球蛋白(β2-MG)水平及24 h尿蛋白定量,PI3K、Akt和NF-κB的mRNA表达水平,比较两组患者的临床疗效。结果:观察组患者的总有效率较基础干预组明显升高[97.92%(47/48)vs. 82.98%(39/47)],差异有统计学意义(P<0.05)。治疗后,观察组患者神疲畏寒、尿浊、腰膝酸冷、肢体浮肿、下肢尤甚、小便清长或短少、面色白光白、夜尿增多及五更泄泻的评分较基础干预组明显降低,差异均有统计学意义(P<0.05)。治疗后,观察组患者的HbA1c、UAE和24 h尿蛋白定量较基础干预组明显降低,GSH-Px水平较基础干预组明显升高,ROS、β2-MG水平较基础干预组明显降低,NF-κB mRNA表达水平较基础干预组明显降低,PI3K、Akt mRNA表达水平较基础干预组明显升高,CTGF、HA和LN水平较基础干预组明显降低,差异均有统计学意义(P<0.05)。结论:真武汤合五皮饮加减用于糖尿病肾病患者,可调节PI3K/Akt/NF-κB信号通路,减少肾小管氧化损伤,改善肾脏纤维化病情,调节HbA1c、UAE和24 h尿蛋白定量,提高临床疗效。

关键词：真武汤合五皮饮加减糖尿病肾病 PI3K/Akt/NF-κB信号通路肾小管氧化损伤肾脏纤维化

基于自适应条件直方图均衡的红外图像细节增强算法

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红外技术 2024年第1期46卷 52-60页

作者：马群赵美蓉郑叶龙孙琳倪锋天津大学精密仪器与光电子工程学院天津300072 天津津航技术物理研究所天津300308

红外图像普遍存在对比度低、细节不清晰、边缘特征不突出等问题。针对这些问题,本文提出了一种自适应条件直方图均衡的红外图像细节增强算法。采用引导滤波将红外图像分解为背景层和细节层;然后采用自适应阈值邻域条件直方图结合对比度... 详细信息

红外图像普遍存在对比度低、细节不清晰、边缘特征不突出等问题。针对这些问题,本文提出了一种自适应条件直方图均衡的红外图像细节增强算法。采用引导滤波将红外图像分解为背景层和细节层;然后采用自适应阈值邻域条件直方图结合对比度受限直方图均衡方式,对背景层图像进行灰度压缩和对比度增强;接着利用引导滤波的中间计算结果构造滤噪掩模,在对细节层进行增强的同时有效滤除背景噪声;最后将背景层和细节层处理结果进行线性融合得到细节增强后红外图像。主观评价和客观数据计算表明,本文提出的红外图像细节增强算法无须手动调节参数即可实现对各类场景的自适应,可以在抑制噪声的前提下,有效增强图像细节,并提升图像整体对比度水平。对算法进行了嵌入式移植,显示效果和资源占用表明算法具有很强的工程化应用水平。

关键词：红外图像增强引导滤波直方图均衡嵌入式移植

Microstructure and Thermal-protective Property of CPED Coating with ZrO2 Nanoparticles Addition on Al-12Si Alloy

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Journal of Wuhan University of Technology(materials Science) 2019年第5期34卷 1187-1192页

作者： WANG Ping ma qun LI Bin LI Yaoyao Shaanxi Key Laboratory of Photoelectric Functional materials and Devices School of Materials and Chemical Engineering Xi’an Technological University

A novel thermal-protective coating has been successfully prepared by CPED process on a cast Al-12%Si alloy with the addition of ZrO2 nano-particles in the electrolyte. The microstructures and phase composition of the coatings were analyzed by SEM and XRD, and the heat insulation performance and the thermal shock resistance of the coatings were investigated. With ZrO2 nanoparticles addition, the cathode plasma discharge on the coating surface is more obvious than that without ZrO2 nanoparticles addition, the coating is more uniform and compact, and the thickness of the coating increases. Furthermore, the content of Zr and Y elements increases and the degree of crystallization of the coating is more complete. The formation of the solid solution of yttrium stabilized zirconia is promoted by cathode plasma discharge. In addition, the thermal insulation temperature increases as ZrO2 nano-particles are added to the electrolyte. After 1 000 cycles of thermal shock, there was no cracking in the coating surface layer, which indicated that the CPED coating with ZrO2 nanoparticles addition possessed a good thermal shock resistance.

关键词： Al-12Si piston alloy cathode plasma electrolytic deposition(CPED) ZrO2 nanoparticles heat-shielding performance thermal shock performance