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煤炭地下气化开发利用现状与发展趋势

中国煤炭 2024年第2期50卷 13-23页

作者：陈井瑞杨瑞召韩枫涛许超孙梦迪张昊中国矿业大学〈北京〉地球科学与测绘工程学院北京市海淀区100083

煤炭地下气化(UCG)作为一种可以将固体煤转化为气体燃料的技术,将煤炭在地下进行气化反应,可以缓解由于在地上燃烧煤炭而产生的大气污染,助力碳减排社会效益,对于实现低碳发展具有重要作用。以建立“清洁、低碳、安全、高效”的能源获... 详细信息

煤炭地下气化(UCG)作为一种可以将固体煤转化为气体燃料的技术,将煤炭在地下进行气化反应,可以缓解由于在地上燃烧煤炭而产生的大气污染,助力碳减排社会效益,对于实现低碳发展具有重要作用。以建立“清洁、低碳、安全、高效”的能源获取方式为出发点,介绍了我国煤炭地下气化的研究历程、发展目标和政策方针,对我国发布的关于煤炭资源利用和煤炭地下气化技术的相关政策进行了分析解读。分别从经济、环境、社会效益3个维度对煤炭地下气化的开发利用价值进行分析,指出煤炭地下气化技术的开发利用可以为我国煤炭行业带来一定的效益。同时,在推动煤炭地下气化技术的发展过程中,还要注重环境保护和管理措施,确保技术实施的安全性和可持续性。基于PESTEL模型从政治、经济、社会、技术、环境、法律5个方面对煤炭地下气化技术的开发进行全面、系统的分析,并阐述了我国煤炭地下气化技术发展的不利因素。最后根据PESTEL模型分析结果,从技术、政策和环境3个方面对我国煤炭地下气化的发展提出了相应的解决方案和政策性建议。结果表明,煤炭地下气化技术具有潜在的经济和环境优势,需加强国内高校、企业与能源公司的协同合作,扩大国际合作范围,并制定和执行环境保护措施,以推动煤炭地下气化技术的发展,实现可持续能源开发和环境保护的双赢。

关键词：煤炭地下气化煤炭开发利用 PESTEL模型 “双碳”目标

骨科术中病人深静脉血栓发生风险预测模型的构建与验证

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护理研究 2024年第10期38卷 1711-1718页

作者：吕梦爽郑喜灿谢素丽孙志艳瞿靖芮刘瑞婷新乡医学院护理学院河南450000 中国人民解放军联勤保障部队第988医院

目的:构建骨科术中病人深静脉血栓(DVT)发生风险预测模型,并对其进行验证。方法:于2021年1月—2022年12月,选取我院收治的需要进行骨科手术治疗的病人作为研究对象。将2021年1月—2022年4月符合标准的272例行骨科手术的病人作为建模组,... 详细信息

目的:构建骨科术中病人深静脉血栓(DVT)发生风险预测模型,并对其进行验证。方法:于2021年1月—2022年12月,选取我院收治的需要进行骨科手术治疗的病人作为研究对象。将2021年1月—2022年4月符合标准的272例行骨科手术的病人作为建模组,将2022年5月—12月符合标准的151例行骨科手术的病人作为外部验证组。对病人一般资料、既往病史、实验室检查指标、手术室指标进行调查,分析骨科术中病人DVT发生的影响因素,构建预测模型,绘制列线图。结果:423例病人中97例发生DVT,DVT发生率为23%。多因素分析结果显示,年龄、体质指数(BMI)、D-二聚体、手术时长、术中是否输血、术中出血量和是否使用骨水泥是骨科术中病人DVT发生的影响因素,基于影响因素构建的风险预测模型拟合优度检验结果显示,χ^(2)=1.643,P=0.897。模型组受试者工作特征曲线下面积(AUC)为0.872,约登指数最大值为0.750,最佳临界值为0.079,灵敏度为75%,特异度为86%;外部验证组AUC为0.837,约登指数最大值为0.728时,对应的灵敏度为72%,特异度为82%,诊断值为0.165。结论:年龄、体质指数、D-二聚体、手术时长、术中是否输血、术中出血量和是否使用骨水泥对骨科病人DVT发生情况具有影响,基于影响因素构建的模型可较好地预测骨科术中病人DVT发生风险。

关键词：骨科手术术中深静脉血栓(DVT) 影响因素风险预测模型护理

Load forecasting using 24 solar terms

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Journal of Modern Power Systems and Clean Energy 2018年第2期6卷 208-214页

作者： jingrui XIE Tao HONG Forecasting R&D SAS Institute Inc. Department of Systems Engineering and Engineering Management University of North Carolina at Charlotte

Calendar is an important driving factor of electricity demand. Therefore, many load forecasting models would incorporate calendar information. Frequently used calendar variables include hours of a day, days of a week,months of a year, and so forth. During the past several decades, a widely-used calendar in load forecasting is the Gregorian calendar from the ancient Rome, which dissects a year into 12 months based on the Moon's orbit around the Earth. The applications of alternative calendars have rarely been reported in the load forecasting literature. This paper aims at discovering better means than Gregorian calendar to categorize days of a year for load *** alternative is the solar-term calendar, which divides the days of a year into 24 terms based on the sun's position in the zodiac. It was originally from the ancient China to guide people for their agriculture activities. This paper proposes a novel method to model the seasonal change for load forecasting by incorporating the 24 solar terms in regression analysis. The case study is conducted for the eight load zones and the system total of ISO New *** from both cross-validation and sliding simulationshow that the forecast based on the 24 solar terms is more accurate than its counterpart based on the Gregorian calendar.

关键词： 24 solar terms Calendar Load forecasting Multiple linear regression

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以创新为导向的多学科融合实验教学体系探索

实验室科学 2024年第2期27卷 90-93页

作者：孙晓明孙亚楠陈小军闫景瑞邓为民张纬天津医科大学基础医学院天津300070 天津医科大学国家级基础医学实验教学示范中心天津300070

为了培养具有创新实践能力、综合分析能力和自主学习能力的创新型医学人才,通过整合实验教学资源,更新教学内容,改变教学方法,强调多学科融合,全面开展以创新为导向的基础医学实验教学改革。经过四年的实践,初步形成“加强基础实验技能... 详细信息

为了培养具有创新实践能力、综合分析能力和自主学习能力的创新型医学人才,通过整合实验教学资源,更新教学内容,改变教学方法,强调多学科融合,全面开展以创新为导向的基础医学实验教学改革。经过四年的实践,初步形成“加强基础实验技能训练-提升综合实践能力培养-拓展协作创新精神”三个层次的实验教学体系,该教学体系从多方面激发学生学习的自主性与积极性、思维的开拓性和科研的创新性。

关键词：创新能力实验教学多学科融合

Improved blue quantum dot light-emitting diodes via chlorine passivated ZnO nanoparticle layer

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Chinese Physics B 2021年第11期30卷 141-145页

作者： Xiangwei Qu jingrui Ma Siqi Jia Zhenghui Wu Pai Liu Kai Wang Xiao-Wei sun Key Laboratory of Energy Conversion and Storage Technologies(Ministry of Education) Southern University of Science and TechnologyShenzhen 518055China Guangdong University Key Laboratory for Advanced Quantum Dot Displays and Lighting Guangdong-Hong Kong-Macao Joint Laboratory for Photonic-Thermal-Electrical Energy Materials and DevicesShenzhen Key Laboratory for Advanced Quantum Dot Displays and Lightingand Department of Electrical and Electronic EngineeringSouthern University of Science and TechnologyShenzhen 518055China Shenzhen Planck Innovation Technology Pte.Ltd Liu-He RoadShenzhen 518173China

In blue quantum dot light emitting diodes(QLEDs),electron injection is insufficient,which would degrade device efficiency and ***,we employ chlorine passivated ZnO nanoparticles as electron transport layer to facilitate electron injection into QDs ***,it suppresses exciton quenching at the QD/ZnO interface by blocking charge transfer *** a result,the maximum external quantum efficiency of blue QLED was increased from 2.55%to 4.60%,and the operation lifetime of blue QLED was nearly 4 times longer than that of the control *** work indicates that election injection plays an important role in blue QLED efficiency and stability.

关键词： quantum dot light emitting diodes(QLEDs) chlorine passivation electron injection

Efficacy of water fraction from Dioscorea cirrhosa on oxidative stress and apoptosis in H9c2 cardiomyocytes induced by H2O2

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Journal of Traditional Chinese Medicine 2021年第1期41卷 51-58页

作者： LIU Chunhua PAN Jie WANG Aimin LAN Yanyu LI Yongjun LU Yuan sun Jia WANG Yonglin LIU Ting LU Dingyan YOU jingrui State Key Laboratory of Functions and Applications of Medicinal Plants Engineering Research Center for the Development and Application of Ethnic Medicine and Traditional Chinese Medicine(Ministry of Education)Guizhou Medical UniversityGuiyang 550004China Guizhou Provincial Key Laboratory of Pharmaceutics Guizhou Medical UniversityGuiyang 550004China School of Pharmacy Guizhou Medical UniversityGuiyang 550004China

OBJECTIVE:To investigate the efficacy of water fraction from Dioscorea cirrhosa(WF)on oxidative damage and apoptosis of cardiomyocytes induced by H2O2,and to study its ***:Cell viability was measured by the MST assay *** content of malondialdehyde(MDA),release of lactate dehydrogenase(LDH)and activity of catalase(CAT)and superoxide dismutase(SOD)were detected by biochemical *** content of reactive oxygen species(ROS)was assessed by nonfluorescent probe 2′,7′-dichlorofluorescin diacetate(DCFH-DA).JC-1 was used to analyze the mitochondrial membrane potential(mtΔΨ)and Annexin-V-FITC/PI staining was applied to assess apoptosis of H9c2 by flow ***,the expression of B-cell lymphoma-2(Bcl-2),Bcl-2-associated X(Bax),caspase-3,caspase-9,cleaved-caspase-3 and cleaved-caspase-9 proteins was determined by western blot ***:WF increased cell viability and decreased LDH leakage in H9c2 cells exposed to *** treatment decreased ROS and MDA level,enhanced SOD and CAT activities,improved mtΔΨand inhibited *** blot analysis demonstrated that the ratio of Bcl-2/Bax was increased and the expression cleaved-caspase-3,caspase-3,cleaved-caspase-9 and caspase-9 were decreased in group treated with ***:WF protects H9c2 myocardial cells on H2O2-induced oxidative stress and apoptosis by scavenging ROS,improving antioxidant capacity,protecting mitochondrial and regulating the proteins expression related to apoptosis.

关键词： Dioscorea water fraction hydrogen peroxide oxidative stress apoptosis myocytes,cardiac

Selection and development of representative simple sequence repeat primers and multiplex SSR sets for high throughput automated genotyping in maize

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Chinese Science Bulletin 2007年第2期52卷 215-223页

作者： WANG FengGe ZHAO JiuRan DAI jingrui YI HongMei KUANG Meng sun YanMei YU XinYan GUO JingLun WANG Lu National Maize Improvement Center of China China Agriculture University Beijing 100094 China Maize Research Center Beijing Academy of Agricultural & Forestry Sciences Beijing 100097 China

In the current study, 1900 maize simple sequence repeat (SSR) primers published in MaizeGDB were screened utilizing reference literature, 15 representative Chinese maize inbred lines and 15 Chinese maize hybrids from national regional testing. In total, 500 highly polymorphic primers were identified and used to construct a genetic map. 100 evenly distributed primers, 10 primers per chromosome, were further selected as a set of universal SSR core primers, recommended as preferred primers for general studies. These core primers were then redesigned and used to construct a high throughput multiplex PCR system based on a five-color fluorescence capillary detection system. We report here that two sets of ten-plex PCR combinations have been constructed, each consisting of 10 primers, with one primer per chromosome.

关键词：基因序列玉米分子标记遗传型

The Possibility and Molecular Mechanisms of Cell Pyroptosis After Cerebral Ischemia

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Neuroscience Bulletin 2018年第6期34卷 1131-1136页

作者： Zhaofei Dong Kuang Pan jingrui Pan Qingxia Peng Yidong Wang Department of Neurology Sun Yat-sen Memorial HospitalSun Yat-sen University Guangdong Province Key Laboratory of Brain Function and Disease Zhongshan School of Medicine Sun Yat-sen University Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation Sun Yat-sen Memorial Hospital Sun Yat-sen University

Introduction Stroke is an important disease that is prevalent worldwide[1–3]. Ischemic stroke accounts for 80%of stroke ***, evidence-based effective treatments for ischemic stroke are limited, and only intravenous t... 详细信息

关键词： The Possibility and Molecular Mechanisms of Cell Pyroptosis After Cerebral Ischemia ASC

血液病患者合并肝脾念珠菌病的临床特征及预后

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中华血液学杂志 2024年第7期45卷 683-688页

作者：朱丹苹马瑞何云罗雪宜韩伟李川周婧睿廖益唐博瑞龙卡龙通黄晓军孙于谦北京大学人民医院北京大学血液病研究所国家血液系统疾病临床医学研究中心造血干细胞移植治疗血液病北京市重点实验室北京100044

肝脾念珠菌病是一种罕见的念珠菌病类型,可发生在血液系统恶性肿瘤、造血干细胞移植患者中,然而目前仍缺乏中国血液病合并肝脾念珠菌病患者的相关研究。本研究依据2020年《血液病/恶性肿瘤患者侵袭性真菌病的诊断标准与治疗原则(第六次... 详细信息

肝脾念珠菌病是一种罕见的念珠菌病类型,可发生在血液系统恶性肿瘤、造血干细胞移植患者中,然而目前仍缺乏中国血液病合并肝脾念珠菌病患者的相关研究。本研究依据2020年《血液病/恶性肿瘤患者侵袭性真菌病的诊断标准与治疗原则(第六次修订版)》的诊断标准,回顾性分析了2008年至2022年在北京大学血液病研究所接受治疗并合并肝脾念珠菌病患者的临床特点及预后。研究最终共有18例患者诊断为肝脾念珠菌病,包括确诊1例(5.6%)、临床诊断2例(11.1%)、拟诊15例(83.3%)。其中3例(16.7%)患者发生在单倍体造血干细胞移植后,15例(83.3%)患者发生在化疗后。6例(33.3%)患者血培养阳性,其中热带念珠菌4例,白念珠菌2例。抗真菌治疗4周时,10例(58.8%)患者达部分缓解;8周时1例(6.3%)达完全缓解,10例(62.5%)达部分缓解。诊断后6个月时,3例(16.7%)患者死于血液学复发,没有患者死于肝脾念珠菌病。肝脾念珠菌病作为一种罕见的真菌感染性疾病,具有微生物学检查和组织学检查阳性率较低、治疗周期长、不易缓解等特点,在伴有持续发热的血液病患者中需警惕肝脾念珠菌病的发生。

关键词：血液病患者血培养阳性真菌感染性疾病侵袭性真菌病抗真菌治疗诊断标准念珠菌病微生物学检查