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Numerical investigation on fire-induced indoor and outdoor air pollutant dispersion in an idealized urban street canyon

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Building Simulation 2022年第4期15卷 597-614页

作者： Shengzhong Zhao haoran yang Chaorui Li Imad Obadi Fei Wang Wenjun Lei Tiantian Xu Miaocheng Weng School of Thermal Engineering Shandong Jianzhu UniversityJinanChina School of Architecture Design and PlanningThe University of SydneySydneyAustralia School of Civil Engineering Chongqing UniversityChongqingChina

Fire-induced pollutant dispersion under the influence of buoyancy in urban street canyons has attracted wide attention given its adverse impact on human *** study analyzes the influences of fire source location and crossflowing wind(perpendicular to the canyon centerline)on indoor and outdoor air pollutant dispersion in an idealized urban street canyon by employing large eddy *** fire scenarios are defined according to the transverse location of the fire source:near the windward building(scenario 1),in the middle of the canyon(scenario 2),and near the leeward building(scenario 3).Results show that a re-entrainment phenomenon appears when the wind velocity reaches a critical value in scenarios 1 and 2,but it doesn't occur in scenario *** source location significantly influences the critical re-entrainment *** critical velocity in scenario 1 is approximate 1.2-1.5 m/s larger than that in scenario *** the heat release rate is large,the critical Fr numbers are less sensitive to changes in HRR,and remain approximately constant with values of 0.47(scenario 1)and 0.37(scenario 2).When the wind velocity is large,more compartments are expected to be affected in the upper floors in all of the three scenarios,and smoke is distributed in an inverted triangle within the *** indoor/outdoor temperature and pollutant concentrations are also *** findings can provide valuable information for both human and property safety in relation to urban street canyons and their surrounding buildings.

关键词： air pollutant dispersion fire smoke street canyon critical re-entrainment velocity fire source location

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Selection of the appropriate reference genes by quantitative real-time PCR in leopard coral groupers Plectropomus leopardus

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Journal of Oceanology and Limnology 2023年第3期41卷 1084-1099页

作者： Han ZHANG haoran yang Pengsuo LI Na ZHAO Xiaojuan CHEN Yongcan ZHOU Zhenjie CAO Yun SUN State Key Laboratory of Marine Resource Utilization in South China Sea Hainan UniversityHaikou 570228China Key Laboratory of Tropical Hydrobiology and Biotechnology of Hainan Province Haikou 570228China Department of Aquaculture College of Marine SciencesHainan UniversityHaikou 570228China

Leopard coral groupers(Plectropomus leopardus),commercially bred in South China,are a significant economical fish *** this study,by means of quantitative real-time PCR(qRT-PCR)technology,we assessed the stability of six common reference genes expression and selected the appropriate reference genes in leopard coral groupers with or without Vibrio harveyi stimulation at different time *** data produced by qRT-PCR was handled via the geNorm,NormFinder,and BestKeeper *** results revealed all the examined reference genes had manifest tissue-specific expression in different *** to *** stimulation,RPL13 gene was the appropriate reference gene among eleven tissue types(blood,spleen,hepatopancreas,kidney,stomach,gill,heart,skin,muscle,intestine,brain)in leopard coral *** *** stimulation,the most reliable reference genes varied from tissue to tissue and were closely hinged upon different time *** 6-h post-bacterial injection,the appropriate reference genes in hepatopancreas,spleen,kidney,and gill were Actin,B2M,UBCE,and Actin,*** 9-and 12-h post-bacterial injection,the appropriate reference genes in hepatopancreas,spleen,kidney,and gill were RPL13,Actin,Actin,and Actin,*** one reference gene was preferable,RPL13,Actin,Actin,and Actin could be selected as the reference gene in hepatopancreas,spleen,kidney,and gill of leopard coral groupers after *** infection,*** profiles of two target genes(IL-6 and NK-lysin)were used to further validate reliability of these selected appropriate *** study will lay a solid foundation for the future research on qRTPCR analysis of gene expression in leopard coral groupers.

关键词： Plectropomus leopardus reference genes Vibrio harveyi stimulation

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镁系CO_(2)电池系统对CO_(2)存储转化性能的影响研究

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绿色科技 2024年第6期26卷 220-224,249页

作者：李圣军魏冕杨浩然李珂姚宇翔中国船级社上海分社上海200135 上海船用柴油机研究所上海200090

目前航运业能源消耗和碳排放日益严峻,为降低船舶温室气体排放,实现航运业碳减排中长期战略目标,CO_(2)捕集和封存技术(CCS)技术成为重要手段。然而该技术在液化和存储阶段存在能耗高、占据空间大,运输处理成本高等问题,因此开发低能耗... 详细信息

目前航运业能源消耗和碳排放日益严峻,为降低船舶温室气体排放,实现航运业碳减排中长期战略目标,CO_(2)捕集和封存技术(CCS)技术成为重要手段。然而该技术在液化和存储阶段存在能耗高、占据空间大,运输处理成本高等问题,因此开发低能耗、紧凑化CO_(2)储存技术是推动船舶CCS技术发展的关键。基于此,介绍了一种镁系二氧化碳电池系统,将CO_(2)转化利用,在实现CO_(2)储存的同时也能产生氢气等新型能源。通过高效催化电极的制备和电解液,CO_(2)流量对电池性能影响的测试研究,最终确定最佳的工艺参数为电极采用Pd/CeO_(2)-oct,电解质为0.5mol/LNaOH溶液,CO_(2)流量为1L/h,电池系统展现出在8mA/cm^(2)电流密度下循环600min(20个充放电循环)的高循环稳定性,产氢量为10.135mL,法拉第效率达到97.03%。

关键词： CO_(2) 电池催化转化效率

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Alternative splicing and related RNA binding proteins in human health and disease

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Signal Transduction and Targeted Therapy 2024年第3期9卷 839-871页

作者： Yining Tao Qi Zhang Haoyu Wang Xiyu yang haoran Mu Department of Orthopedics Shanghai General HospitalShanghai Jiao Tong University School of Medicine200000 ShanghaiChina Shanghai Bone Tumor Institution 200000 ShanghaiChina Department of Biochemistry and Molecular Cell Biology Shanghai Key Laboratory for Tumor Microenvironment and InflammationShanghai Jiao Tong University School of Medicine200000 ShanghaiChina

Alternative splicing(AS)serves as a pivotal mechanism in transcriptional regulation,engendering transcript diversity,and modifications in protein structure and *** varying tissues,developmental stages,or under specific conditions,AS gives rise to distinct splice *** implies that these isoforms possess unique temporal and spatial roles,thereby associating AS with standard biological activities and *** these,AS-related RNA-binding proteins(RBPs)play an instrumental role in regulating alternative splicing *** physiological conditions,the diversity of proteins mediated by AS influences the structure,function,interaction,and localization of proteins,thereby participating in the differentiation and development of an array of tissues and *** pathological conditions,alterations in AS are linked with various diseases,particularly *** changes can lead to modifications in gene splicing patterns,culminating in changes or loss of protein *** instance,in cancer,abnormalities in AS and RBPs may result in aberrant expression of cancer-associated genes,thereby promoting the onset and progression of *** and RBPs are also associated with numerous neurodegenerative diseases and autoimmune ***,the study of AS across different tissues holds significant *** review provides a detailed account of the recent advancements in the study of alternative splicing and AS-related RNA-binding proteins in tissue development and diseases,which aids in deepening the understanding of gene expression complexity and offers new insights and methodologies for precision medicine.

关键词： organs alterations thereby

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Highly efficient synthesis of boron nitride nanotubes by catalytic chemical vapor deposition of boron/nickel containing precursors

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Journal of Materiomics 2022年第6期8卷 1199-1204页

作者： Heng Wang haoran yang Yongzhi Peng Yulin Zheng Dongying Huang Pu Hu Yawei Li Zhengyi Fu Hubei Key Laboratory of Plasma Chemistry and Advanced Materials Key Laboratory of Green Chemical Engineering Process of Ministry of EducationWuhan Institute of TechnologyWuhan430205China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan430070China The State Key Laboratory of Refractories and Metallurgy Wuhan University of Science and TechnologyWuhan430081China

High-purity and high-yield boron nitride nanotubes with large aspect ratio were prepared by a facile two-step process,including the synthesis of boron/nickel containing precursors by precipitation reactions and subsequent thermally catalytic chemical vapor deposition *** influence of catalyst content and annealing temperature on the phase composition and microstructure of the products were *** results show that it is difficult to exert the catalytic effect of nickel-based catalyst at low temperatures(<1400℃).At appropriate temperatures(1400-1500℃),highly crystalline boron nitride nanotubes with a length of more than 50 mm and a diameter of 50 nm are *** content of catalyst in the precursor mainly affects the morphology of the boron nitride *** the content is too low,it is easy to form boron nitride particles;while high catalyst content can easily lead to catalyst aggregation and form a submicron one-dimensional boron nitride with unregular *** on microstructural evolutions,phase changes,and thermodynamic analysis,the vapor-liquid-solid(V-L-S)growth mechanism of the tip growth mode dominates the formation of boron nitride nanotubes has also been verified.

关键词： Boron nitride nanotubes Highly efficient synthesis Boron/nickel containing precursors Growth mechanism

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基于网络药理学研究独活寄生汤治疗腰椎间盘突出症的作用机制

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辽宁中医药大学学报 2024年第4期26卷 166-173页

作者：袁泉党建军贾承明郑宇王欢杨皓然陕西中医药大学陕西咸阳712046 陕西省中医医院陕西西安710082

目的基于网络药理学研究独活寄生汤治疗腰椎间盘突出症的作用机制。方法通过TCMSP中药系统药理学数据库搜索有关于独活寄生汤中中药的有效成分,然后分析成分靶点,利用UniProt蛋白质数据库将有效成分靶点蛋白转换为靶点基因信息,然后以... 详细信息

目的基于网络药理学研究独活寄生汤治疗腰椎间盘突出症的作用机制。方法通过TCMSP中药系统药理学数据库搜索有关于独活寄生汤中中药的有效成分,然后分析成分靶点,利用UniProt蛋白质数据库将有效成分靶点蛋白转换为靶点基因信息,然后以腰椎间盘突出症的医学英文全称在OMIM、Gene Cards、DisGeNET等疾病基因数据库搜索其的基因靶点。利用绘图软件venny绘制韦恩图,将获得的靶点与腰椎间盘突出症的靶点汇总并且取交集,获得两者共有靶点。运用String蛋白质相互作用数据库和Cytoscape绘图软件,绘制出核心靶点蛋白质相互作用图,以及中药-有效成分-交集靶点-疾病通路-疾病的网络结构图。查找独活寄生汤治疗腰椎间盘突出的核心靶点基因,并且对其分别进行GO功能富集分析和KEGG通路富集分析。结果筛选出中药有效成分180个,成分靶点290个,腰椎间盘突出症靶点2681个,交集靶点54个,在PPI蛋白互作分析中占关键的靶点为:丝氨酸/苏氨酸蛋白激酶(AKT1)、细胞肿瘤抗原p53(TP53)、白蛋白(ALB)、半胱氨酸蛋白酶(CASP3)、白细胞介素6(IL6)、前列腺素内过氧化物合酶2(PTGS2)等;GO通路富集分析最终得出了463条结果,结果中分别有生物过程364条,分子功能69条,细胞成分30条,主要涉及内容有RNA聚合酶II转录因子活性,炎症、药物反应,细胞生长凋亡等。KEGG通路富集分析显示出了112条信号通路,这些信号通路中涉及到了各种肿瘤相关通路、乙型肝炎、丙型肝炎相关通路、炎症产生相关通路以及脂质生成与代谢等通路。结论网络药理学研究显示了独活寄生汤中各种药物成分,通过多靶点相互联系、多通路共同调控,协同治疗腰椎间盘突出症,利用已证实的药物数据为基础分析了其药物中的活性成分、关键靶点、蛋白质的相互作用关系和潜在通路,进一步阐明独活寄生汤治疗腰椎间盘突出症的作用机制。

关键词：独活寄生汤腰椎间盘突出症网络药理学作用机制

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Engineering applications and technical challenges of active array microsystems

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Frontiers of Information Technology & Electronic Engineering 2024年第3期25卷 342-368页

作者： Jiaguo LU haoran ZHU East China Research Institute of Electronic Engineering Hefei 230039China School of Electronic and Information Engineering Anhui UniversityHefei 230601China

In the post-Moore era,the development of active phased array antennas will inevitably trend towards active array *** this paper,the characteristics and composition of the active array antenna are briefly *** to the high efficiency,low profile,and light weight of the active array microsystems,the application prospects and advantages in the engineering of multi-functional airborne radar,spaceborne radar,and communication systems are ***,according to the characteristics of the post-Moore era of integrated circuits,scientific and technological problems in the active array microsystems are presented,including multi-scale,multi-signal,and multi-physics field *** challenges are also discussed,such as new architectures and algorithms,miniaturization of passive components,novel materials and processes,ultra-wideband technology,and new interdisciplinary technological *** paper is expected to inspire in-depth research on active array microsystems.

关键词： Microelectronics Heterogeneous integration Packaging materials Antenna array microsystems Multi-functional radar Communication

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运城市某家具制造厂VOCs排放特征及环境影响分析

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环境化学 2024年第6期43卷 2025-2035页

作者：陈凯涛谷欣蔡敏赵唯丞王伯轩杨皓然陈楚昭茹晓宁刘新罡李杏茹首都师范大学化学系分析测试中心北京100048 首都师范大学资源环境与旅游学院北京100048 山西省运城生态环境局运城044000 北京师范大学环境学院北京100091

为研究汾渭平原运城市家具制造业VOCs排放特征,选取运城市一家具有代表性的家具制造企业作为研究对象,利用气相色谱-质谱/氢火焰离子化检测器(GC-MS/FID),采用外标法定量分析了挥发性有机物(VOCs)浓度排放特征,并估算了其臭氧生成潜势(O... 详细信息

为研究汾渭平原运城市家具制造业VOCs排放特征,选取运城市一家具有代表性的家具制造企业作为研究对象,利用气相色谱-质谱/氢火焰离子化检测器(GC-MS/FID),采用外标法定量分析了挥发性有机物(VOCs)浓度排放特征,并估算了其臭氧生成潜势(OFP)与二次有机气溶胶生成潜势(SOAFP).研究显示,底漆车间、修色车间、面漆车间、木材加工车间、厂房外、排放烟囱A以及排放烟囱B的TVOCs浓度在1.25—14.56 mg·m^(−3),烟囱A和B采用水过滤+活性炭吸附工艺对末端烟气进行处理,该工艺对烟囱A各VOCs组分具有较好的处理效果;该家具制造厂排放的主要VOCs组分为芳香烃、OVOCs和烷烃,占比分别为39.0%—68.0%、13.0%—30.0%和10.0%—28.0%,其中,主要物种为乙苯、间/对二甲苯、乙酸乙酯等;对OFP贡献较大的组分为芳香烃,占比为68.70%—93.28%,其次是OVOCs和烷烃,占比在2.82%—17.09%,对OFP贡献较大的前3种物质分别为间/对二甲苯、邻二甲苯、乙苯;SOAFP的绝对贡献者是芳香烃,占比为93.10%—98.73%,对SOAFP贡献较大的前4种物质分别为间/对二甲苯、邻二甲苯、甲苯、癸烷.因此,运城市该家具制造企业需要加强对芳香烃等活性较高的VOCs组分的监管与控制力度,希望该研究可以为其提供一定的指导意义.

关键词： VOC源谱特征汾渭平原家具制造业臭氧生成潜势(OFP) 二次有机气溶胶生成潜势(SOAFP)

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Palladium-Catalyzed Regioselective Asymmetric Chemodivergent Allylation of Oxazolones with Morita-Baylis-Hillman Adducts

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CCS Chemistry 2023年第12期5卷 2790-2798页

作者： Rui Zhang Zibo Liu Yong Liu haoran yang Xiaoming Wang Zhaobin Han Zheng Wang Kuiling Ding State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic ChemistryChinese Academy of SciencesUniversity of Chinese Academy of SciencesShanghai 200032 School of Physical Science and Technology ShanghaiTech UniversityShanghai 201210 Frontiers Science Center for Transformative Molecules School of Chemistry and Chemical EngineeringShanghai Jiao Tong UniversityShanghai 200240

Oxazolones are structural subunits in numerous natural products and designed molecules with substantial pharmacological ***,a palladium-catalyzed chemodivergent regio-and enantioselective allylic alkylation of 4-or 5-substituted oxazol-2(3H)-ones with Morita-Baylis-Hillman(MBH)adducts has been developed using a spiroketal-based diphosphine as the ligand(50 examples).Interestingly,4-substituted oxazol-2(3H)-ones acted as a C-nucleophiles in the reaction to afford a range of chiral 4,5-substituted oxazol-2(3H)-ones in high yields(72-99%)with good to excellent chemo-,regio-,and enantioselectivities(C/N 95:5->99:1,b/l 91:9->99:1,85-98%ee).When a N-nucleophile was used under otherwise identical conditions,5-substituted oxazol-2(3H)-ones delivered a range of chiral 3,5-substituted oxazol-2(3H)-ones in high yields(68-98%)with good regio-and enantioselectivities(b/l 71:29-91:9,66-94%ee).The synthesis can be readily performed on gram scale under fairly low catalyst loadings,and the utility of the protocol was showcased in the facile transformation of the products into more elaborate chiral molecules.

关键词： asymmetric catalysis allylic alkylation palladium oxazolones chemodivergent

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An efficient recycling strategy to eliminate the residual“impurities”while heal the damaged structure of spent graphite anodes

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Green Energy & Environment 2024年第6期9卷 1027-1034页

作者： Dan yang Ying yang haoran Du Yongsheng Ji Mingyuan Ma Yujun Pan Xiaoqun Qi Quan Sun Kaiyuan Shi Long Qie Institute of New Energy for Vehicles School of Materials Science and EngineeringTongji UniversityShanghai201804China State Key Laboratory of Material Processing and Die&Mold Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan430074China Shuangdeng Group Co. Ltd.Taizhou225500China School of Materials Science and Engineering Sun Yat-Sen UniversityGuangzhou510275China

The recycling of graphite from spent lithium-ion batteries(LIBs)is overlooked due to its relatively low added value and the lack of efficient recovering *** reuse the spent graphite anodes,we need to eliminate their useless components(mainly the degraded solid electrolyte interphase,SEI)and reconstruct their damaged ***,a facile and efficient strategy is proposed to recycle the spent graphite on the basis of the careful investigation of the composition of the cycled graphite anodes and the rational design of the regeneration *** regenerated graphite,which is revitalized by calcination treatment and acid leaching,delivers superb rate performance and a high specific capacity of 370 mAh g^(-1)(~99% of its theoretical capacity)after 100 cycles at 0.1 C,superior to the commercial graphite *** improved electrochemical performance could be attributed to unchoked Li^(+) transport channels and enhanced charge transfer reaction due to the effective destruction of the degraded SEI and the full recovery of the damaged structure of the spent *** work clarifies that the electrochemical performance of the regenerated graphite could be deteriorated by even a trace amount of the residual“impurity”and provides a facile method for the efficient regeneration of graphite anodes.

关键词： Graphite Anode Regeneration Solid electrolyte interphase Spent lithium-ion battery

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