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Theoretical analysis and engineering application of controllable shock wave technology for enhancing coalbed methane in soft and low‑permeability coal seams

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International Journal of Coal Science & Technology 2024年第2期11卷 123-142页

作者： Guodong Qiao Zegong Liu Yongmin Zhang changping Yi Kui Gao Shigui Fu Youzhi Zhao School of Safety Science and Engineering Anhui University of Science and TechnologyHuainan 232001AnhuiChina Institute of Energy Hefei Comprehensive National Science CenterHefei 230031AnhuiChina School of Electrical Engineering Xi’an Jiaotong UniversityXi’an 710049ShanxiChina Division of Mining and Geotechnical Engineering LuleåUniversity of TechnologyLuleåSweden

Coalbed methane(CBM)is a significant factor in triggering coal and gas outburst disaster,while also serving as a clean *** the increasing depth of mining operations,coal seams that exhibit high levels of gas content and low permeability have become increasingly *** controllable shockwave(CSW)technology has proven effective in enhancing CBM in laboratory settings,there is a lack of reports on its field applications in soft and low-permeability coal *** study establishes the governing equations for stress waves induced by *** numerical inversion was employed to analyse the dynamic response of the coal seam during CSW ***,quantitative calculations were performed for the crushed zone,fracture zone,and effective CSW influence range,which guided the selection of field test *** results of the field test unveiled a substantial improvement in the gas permeability coefficient,the average rate of pure methane flowrate,and the mean gas flowrate within a 10 m radius of the antireflection *** enhancements were notable,showing increases of 3 times,13.72.times,and 11.48 times,***,the field test performed on the CSW antireflection gas extraction hole cluster demonstrated a noticeable improvement in CBM *** antireflection,the maximum peak gas concentration and maximum peak pure methane flow reached 71.2.and 2.59 m^(3)/min,*** findings will offer valuable guidance for the application of CSW antireflection technology in soft and low-permeability coal seams.

关键词： CSW antireflection in coal seams CBM extraction enhancement Soft and low-permeability coal seams Field test

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Cyber-physical Integrated Planning of Distribution Networks Considering Spatial-temporal Flexible Resources

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Protection and Control of Modern Power Systems 2024年第3期9卷 142-156页

作者： Shutan Wu Qi Wang Qichao Chen changping Yu Yi Tang Southeast University NanjingChina the School of Electrical Engineering Southeast UniversityNanjing 210096China the State Grid Economic and Technological Research Institute CO .LTD.BeijingChina System Automation Research Institute Southeast University

The rapid development of cyber technology and the increase of flexible resources have transformed the distribution network into a cyber-physical distribution system,while the accompanying multidimensional uncertainties have brought new planning *** this paper,an innovative approach is proposed to effectively leverage distributed resources while considering the impact of cyber-physical coupling in distribution network planning.A cyber-physical integrated planning model of the distribution network is proposed,considering the effects of spatial-temporal flexible resources and multi-network ***,a three-layer optimization model is established and analyzed by the simulate anneal-particle swarm optimization *** upper layer achieves the optimization of the location and configuration of energy storage systems and smart terminal *** middle layer optimizes the data load migration strategy using spatial-temporal flexible resources to solve the voltage exceeding problem caused by high penetration of distributed power access,while the lower layer optimizes the cyber side communication topology,improving the convergence speed and control performance of the distribution ***,the optimization model is analyzed iteratively with objective functions including total planning cost,operation excess loss and distributed control ***,the effectiveness and economy of the proposed planning scheme is verified and compared to traditional methods.

关键词： Cyber-physical distribution system distributed resources integrated planning model spatialtemporal migration

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Meningeal lymphatic vasculature,a general target for glioblastoma therapy?

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Fundamental Research 2024年第2期4卷 267-269页

作者： changping Zhou Han Xu Jincai Luo Laboratory of Vascular Biology Institute of Molecular MedicineCollege of Future TechnologyBeijing Key Laboratory of Cardiometabolic Molecular MedicinePeking UniversityBeijing 100871China

Glioblastoma(GBM)causes nearly universal mortality as a result of the failure of conventional therapies including surgical resection,targeted radiation therapy,and *** increasingly important treatment option is combining immunotherapy with other therapies in both preclinical and clinical *** central nervous system(CNS)has been historically considered an immune privileged area,but increasing evidence,including the recent rediscovery of meningeal lymphatic vessels(MLVs),has overturned this *** are populated by multiple immune cells and connect the CNS to the periphery by draining cerebrospinal fluid with soluble CNS antigens and immune cells into cervical lymph *** the past few years,more and more studies have indicated that MLVs are involved in the regulation of inflammation and the immune response in the pathogenesis of various CNS diseases including ***,we explore the critical interlinkages between MLVs and GBM therapies including chemotherapy,radiotherapy and immunotherapy,and propose the meningeal lymphatic vasculature as a general target for GBM therapy.

关键词： Meningeal lymphatic vessels Glioblastoma Immunity Vascular endothelial growth factor C Immune modulation

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Progress in electrocatalytic nitrate reduction for green energy:Catalyst engineering,mechanisms,and techno-economic feasibility

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Journal of Energy Chemistry 2024年第8期95卷 380-406,I0009页

作者： Hafiz Muhammad Adeel Sharif Hafiz Muhammad Farooq Khan Sadeeq Ullah Yuwei Wang Muhammad Ahmad Bo Yang changping Li Muhammad Bilal Asif Research Center for Eco-Environmental Engineering Dongguan University of TechnologyDongguan 523808GuangdongChina College of Chemistry and Engineering Shenzhen UniversityShenzhen 518060GuangdongChina FMH College of Medicine and Dentistry LahorePakistan School of Environment and Civil Engineering Research Center for Eco-Environment EngineeringDongguan University of TechnologyDongguan 523106GuangdongChina Advanced Membranes and Porous Materials Center(AMPMC) Physical Sciences and Engineering(PSE)King Abdullah University of Science and Technology(KAUST)Thuwal 23955Saudi Arabia

Ammonia(NH_(3))is an irreplaceable chemical that has been widely demanded to keep the sustainable development of modern ***,its industrial production consumes a huge amount of energy and releases extraordinary greenhouse gases(GHGs),leading to various environmental *** the green production of ammonia is a great challenge,which has been extensively pursued in the last *** this review,the most promising strategy,electrochemical nitrate reduction reaction(e-NO_(3)RR),is comprehensively investigated to give a complete understanding of its development and mechanism and provide guidance for future ***,owing to the complex reactions and limited selectivity,a comprehensive understanding of the mechanisms is crucial to further development and ***,NO_(3)^(-)RR is a promising strategy for simultaneous water treatment and NH_(3)production.A detailed overview of the recent progress in NO_(3)^(-)RR for NH_(3)production with nontransition and transition metal based electrocatalysts is *** addition,critical advanced techniques,future challenges,and prospects are discussed to guide future research on transition metal-based catalysts for commercial NH_(3)synthesis by NO_(3)^(-)reduction.

关键词： Nitrate reduction Electrolysis Pollution to solution Transition metal catalysts Ammonia synthesis Green energy

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Yuzaoea gen. nov., a new biraphid diatom(Bacillariophyceae)genus and its phylogenetic significance

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Acta Oceanologica Sinica 2024年第2期43卷 130-136页

作者： Honghan Liu Chenhong Li Lang Li Xuesong Li Lin Sun Junrong Liang Jun Zhang Yahui Gao changping Chen Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems and School of Life Sciences Xiamen UniversityXiamen 361102China State Key Laboratory of Marine Environmental Science Xiamen UniversityXiamen 361102China Guangxi Key Laboratory of Marine Environmental Science Guangxi Academy of Marine SciencesGuangxi Academy of SciencesNanning 530007China Beibu Gulf Marine Industry Research Institute Fangchenggang 538000China

The flexed frustules in pennate diatoms are usually associated with monoraphid diatoms. Interestingly, we found a biraphid diatom species with flexed frustules in an offshore intertidal beach environment on Weizhou Island,Beihai City, Guangxi Zhuang Autonomous Region, China. Therefore, based on morphological characteristics, we described a new genus of diatoms Yuzaoea sinensis gen. et sp. nov. CH Li, HH Liu, YH Gao & CP Chen. The frustule of this genus is characterized by heterogeneous frustule with one concave valve and one convex valve,complete raphe on both valves, straight and moderately eccentric raphe, uniseriate striae and girdle bands with a single row of areolae. The most identifying feature of this genus was the flexed frustule, which is rare in biraphid diatoms and common in monoraphid diatoms. We compared the morphometric characteristics of genus Yuzaoea with genus Rhoikoneis and several genera within the family Rhoicospheniaceae, including Rhoicosphenia,Campylopyxis, and Cuneolus. Phylogenetic analyses based on SSU rRNA and rbc L showed that the genus Yuzaoea was the sister group to the clade of Rhoicosphenia with a high support value(bootstrap values = 100%), and the clade “Yuzaoea+Rhoicosphenia” was sister to the clade of monoraphid diatoms, in which the genera Achnanthidium, Planothidium and some Cocconeis with high support values(bootstrap = 100%).Morphologically, the genus Yuzaoea shares many morphological features with monoraphid diatoms like genera Achnanthidium and Planothidium and the members within the Rhoicospheniaceae. Therefore, based on a combined morphological studies and phylogenetic results we suggested that this branch may represented the evolution of one kind monoraphid diatoms, from biraphid diatoms(e.g. genus Yuzaoea), to incompleted biraphid diatoms(e.g. genera Rhoicosphenia, Campylopyxis), to monoraphid diatoms(e.g. genera Achnanthidium and Planothidium).

关键词： biraphid diatom marine new genus Rhoicospheniaceae taxonomy Yuzaoea

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Transcriptomic and metabolomic analysis provides insights into lignin biosynthesis and accumulation and differences in lodging resistance in hybrid wheat

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Journal of Integrative Agriculture 2024年第4期23卷 1105-1117页

作者： Weibing Yang Shengquan Zhang Qiling Hou Jiangang Gao Hanxia Wang Xianchao Chen Xiangzheng Liao Fengting Zhang changping Zhao Zhilie Qin Institute of Hybrid Wheat Beijing Academy of Agriculture and Forestry SciencesBeijing 100097China Beijing Municipal Key Laboratory of Molecular Genetics of Hybrid Wheat Beijing 100097China

The use of hybrid wheat is one way to improve the yield in the ***,greater plant heights increase lodging risk to some *** this study,two hybrid combinations with differences in lodging resistance were used to analyze the stem-related traits during the filling stage,and to investigate the mechanism of the difference in lodging resistance by analyzing lignin synthesis of the basal second internode(BSI).The stem-related traits such as the breaking strength,stem pole substantial degree(SPSD),and rind penetration strength(RPS),as well as the lignin content of the lodging-resistant combination(LRC),were significantly higher than those of the lodgingsensitive combination(LSC).The phenylpropanoid biosynthesis pathway was significantly and simultaneously enriched according to the transcriptomics and metabolomics analysis at the later filling stage.A total of 35 critical regulatory genes involved in the phenylpropanoid pathway were ***,42.of the identified genes were significantly and differentially expressed at the later grain-filling stage between the two combinations,among which more than 80%were strongly up-regulated at that stage in the LRC compared with *** the contrary,the LRC displayed lower contents of lignin intermediate metabolites than the *** results suggested that the key to the lodging resistance formation of LRC is largely the higher lignin synthesis at the later grain-filling ***,breeding strategies for synergistically improving plant height and lodging resistance of hybrid wheat were put forward by comparing the LRC with the conventional wheat applied in large areas.

关键词： gene expression lignin synthesis lodging-resistance hybrid wheat

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从绿松石器看晚商王朝与李家崖文化的关系

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考古与文物 2024年第2期 113-122,139页

作者：张昌平武汉大学历史学院

绿松石因其矿源和产品不多,是用来观察商时期不同区域文化交流和社会关系的新视角。晚商王朝的绿松石器种类很多,主要出现在高等级贵族墓葬中,且有不同的质量品级。李家崖文化绿松石器主要发现在以寨沟遗址为代表的地点,其类别和形制都... 详细信息

绿松石因其矿源和产品不多,是用来观察商时期不同区域文化交流和社会关系的新视角。晚商王朝的绿松石器种类很多,主要出现在高等级贵族墓葬中,且有不同的质量品级。李家崖文化绿松石器主要发现在以寨沟遗址为代表的地点,其类别和形制都与晚商王朝中心区域的同类器物高度一致,多数产品很可能直接从晚商王朝中心地区输入。绿松石器可反映晚商王朝与李家崖遗址等北方地区文化之间的亲密关系,这还可能与欧亚草原车马资源东渐、商王朝都城北移等现象相关。晚商王朝可能通过对绿松石等资源和生产技术的掌控,从周边获取所需资源。

关键词：李家崖文化晚商王朝绿松石器社会关系

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Consensus linkage map construction and QTL mapping for eight yield-related traits in wheat using the BAAFS Wheat 90K SNP array

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Journal of Integrative Agriculture 2024年第11期23卷 3641-3656页

作者： Lihua Liu Pingping Qu Yue Zhou Hongbo Li Yangna Liu Mingming Zhang Liping Zhang changping Zhao Shengquan Zhang Binshuang Pang Institute of Hybrid Wheat Beijing Academy of Agriculture and Forestry Sciences The Municipal Key Laboratory of Molecular Genetic of Hybrid Wheat Beijing Academy of Agriculture and Forestry Sciences Key Laboratory of Crop DNA Fingerprinting Innovation and Utilization (Co-construction by Ministry and Province) Ministry of Agriculture and Rural Affairs

Identifying stable quantitative trait loci （QTLs） for yield-related traits across populations and environments is crucial for wheat breeding and genetic *** maps also play important roles in wheat genetic and genomic *** the present study,a wheat consensus map was constructed using a doubled haploid （DH） population derived from Jinghua 1×Xiaobaidongmai （JX）,an F2.opulation derived from L43×Shanxibaimai （LS） and the BAAFS Wheat 90K SNP array single nucleotide polymorphism （SNP） array.A total of 44,503 SNP markers were mapped on the constructed consensus map,and they covered 5,437.92.cM across 2. *** consensus map showed high collinearity with the individual maps and the wheat reference genome IWGSC RefSeq *** data on eight yield-related traits were collected in the JX population,as well as the F2.3and F2.4populations of LS,in six,two and two environments,respectively,and those data were used for QTL *** composite interval mapping （ICIM） identified 32.environmentally stable QTLs for the eight yield-related *** them,four QTLs（***-4B,***-4B,***-4B,and ***-5A.3） were detected across mapping populations and environments,and nine stable QTLs （***-1D,***-2.,***-3D,***-3D,***-4B,***-5D,***-6A.1,***-6A,and ***-6D） are likely to be *** physical region of 17.2.–44.91 Mb on chromosome 4B was associated with six yield-related traits,so it is an important region for wheat *** physical region around the dwarfing gene Rht2. contained QTLs for kernel length （KL）,kernel width （KW）,spike length （SL）,and thousand-grain weight （TGW）,which are either from a pleiotropic effect of Rht2. or closely linked *** the stable QTLs,2.4 promising candidate genes were *** them,TraesCS5A03G12.4300,TraesCS1B03G062.000 and TraesCS6A03G0697000 are particularly noteworthy since their homologous genes have similar functions for th

关键词： consensus map QTL yield-related traits wheat ( Triticum aestivum L.)

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论二里冈文化时期青铜器:一般特性及意义

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江汉考古 2024年第3期 83-88页

作者：张昌平武汉大学历史学院湖北武汉430072

二里冈文化时期的青铜器已经形成了以容器和兵器为主体的特性,容器中又形成了食器和酒器相结合的礼器性质,并有了较为稳定的器物组合形式。在制作上,三分外范成为基础的合范技术形式,装饰成为礼器的重要表现方式,并深受制作技术的影响... 详细信息

二里冈文化时期的青铜器已经形成了以容器和兵器为主体的特性,容器中又形成了食器和酒器相结合的礼器性质,并有了较为稳定的器物组合形式。在制作上,三分外范成为基础的合范技术形式,装饰成为礼器的重要表现方式,并深受制作技术的影响。兽面纹等想象动物纹样作为主要的装饰内容,初现古代中国抽象艺术的风格。因此,二里冈文化青铜器已经大体具备了中国青铜时代青铜器的基本特性,并开始塑造中国古代社会的礼仪特性。

关键词：二里冈文化青铜器制作礼器

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补充维生素D对炎性肠病患者肠道微生物群的稳态分析

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中国病原生物学杂志 2024年第9期19卷 1047-1052页

作者：申洋李昌平西南医科大学附属医院消化内科四川德阳618000 德阳市人民医院消化内科

目的探讨补充维生素D对炎性肠病(IBD)患者肠道微生物群的影响,以揭示维生素D通过调节肠道微生物群落可能对IBD治疗产生的潜在影响。方法本研究为前瞻性队列研究,共纳入60名IBD患者,随机分为常规治疗组和补充维生素D组(每组30人)。采集2...

目的探讨补充维生素D对炎性肠病(IBD)患者肠道微生物群的影响,以揭示维生素D通过调节肠道微生物群落可能对IBD治疗产生的潜在影响。方法本研究为前瞻性队列研究,共纳入60名IBD患者,随机分为常规治疗组和补充维生素D组(每组30人)。采集2.患者在治疗前(T0)和治疗12.后(T1)的粪便样本,通过16S rRNA基因测序分析治疗前后肠道微生物组成。微生物组学分析2.患者肠道菌群的α多样性和β多样性,同时通过LEfSe分析确定显著富集的微生物类群。结果治疗后(T1),补充维生素D组的Chao1指数和Shannon指数显示肠道微生物多样性得到保持(Chao1:T0=104.05±8.35,T1=97.2.±9.2.;Shannon:T0=2.05±0.2.,T1=1.92.0.2.),而常规治疗组的多样性显著下降(Chao1:T0=102.62.10.82.T1=78.84±10.94;Shannon:T0=1.95±0.19,T1=1.61±0.2.)。PCoA分析显示两组间在治疗后肠道微生物群落结构存在显著差异。LEfSe分析结果显示,补充维生素D组中Lactobacillus reuteri、Bifidobacterium longum、***、f_Bacteroidaceae unclassified、f_Lachnospiraceae unclassified、f_Ruminococcaceae unclassified、f_Veillonellaceae unclassified和g_Prevotella unclassified的丰度显著升高。结论补充维生素D组在维持肠道微生物多样性和稳定性方面表现出显著的改善,同时补充维生素D显著影响了特定肠道微生物的丰度,这些微生物已知与维生素D的代谢及其他重要的宿主代谢途径有关。

关键词：炎性肠病维生素D补充肠道菌群 16S rRNA基因测序微生物组学

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