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试论个体工商户的用人单位主体资格

江苏经贸职业技术学院学报 2024年第4期 46-48页

作者：朱朝阳扬州经济技术开发区人民法院江苏扬州225000

劳动法域将个体工商户界定为个体经济组织,与其他经济组织一并纳入劳动法调整。个体工商户作为标准的个体经济,天赋无组织性,在其经营发展过程中具备了组织性三大要素的,本质上已转变为独资或合伙企业性质的私营经济。因此,在司法实践中... 详细信息

劳动法域将个体工商户界定为个体经济组织,与其他经济组织一并纳入劳动法调整。个体工商户作为标准的个体经济,天赋无组织性,在其经营发展过程中具备了组织性三大要素的,本质上已转变为独资或合伙企业性质的私营经济。因此,在司法实践中,对个体工商户用工主体资格的认定,应以个人劳务合同关系为原则、以劳动合同关系为例外。只有在查明个体工商户具备合作管理、合伙经营的事实基础上,才能以非法人组织拟定名分确认其用人单位主体资格。

关键词：个体工商户自然人权利能力组织法定原则非法人组织

季戊四醇固固相变材料导热性能的分子动力学研究

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陕西科技大学学报 2024年第4期42卷 126-132页

作者：崔柳景照硕张卫潮祝朝阳陈栓俊王士星华北电力大学新能源电力系统国家重点实验室北京102206 国网能源和丰煤电有限公司新疆塔城834700

火力发电中余热耗散现象不可避免,有效地利用电厂余热不仅带来直接的经济效益,而且也是实现双碳目标的重大举措。季戊四醇具有稳定性好、安全性高,并且在一定温度时会发生体心立方结构(α相)与面心立方结构(γ相)相互转化的优点,因而在... 详细信息

火力发电中余热耗散现象不可避免,有效地利用电厂余热不仅带来直接的经济效益,而且也是实现双碳目标的重大举措。季戊四醇具有稳定性好、安全性高,并且在一定温度时会发生体心立方结构(α相)与面心立方结构(γ相)相互转化的优点,因而在固固相变领域具有良好的应用场景.研究季戊四醇在不同温度时的导热性能对工业余热回收利用十分必要.本文利用分子动力学模拟方法,分别对季戊四醇相变前后的两种相态的导热性能开展了研究.为了揭示季戊四醇热导率变化的物理机理,进一步对X射线衍射图谱、声子态密度、不同频率的声子贡献以及不同类型的作用力贡献开展分析.研究结果表明,随着体系温度升高,α相季戊四醇的热导率逐渐下降.当温度超过相变温度,季戊四醇由α相转变为γ相,热导率大幅下降.相比于α相,γ相季戊四醇热导率的降低归因于:(1)γ相季戊四醇晶胞结构发生了变化,分子间氢键遭到破坏;(2)γ相季戊四醇晶体内声子散射增强;(3)主导声子频率的不同导致了α相和γ相季戊四醇热导率差异;(4)γ相季戊四醇晶体中对热导率贡献最大的键拉伸作用力占比较小.研究结果可为工业余热回收利用发展及固固相变材料的开发和设计提供理论指导.

关键词：电厂余热利用固固相变分子动力学模拟季戊四醇热导率

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适用于燃煤锅炉的SCR烟气脱硝喷氨技术研究

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化学工程师 2024年第6期38卷 42-45,41页

作者：陈栓俊张久龙祝朝阳仲超赵孝光国网能源和丰煤电有限公司新疆塔城834700 山东创宇环保科技有限公司山东济南250000

为提高燃煤锅炉SCR烟气脱硝系统的脱硝效率并降低脱硝成本,采用酸洗法对某燃煤锅炉脱硝系统的废弃SCR催化剂进行了再生处理,评价了再生SCR催化剂的活性,并对燃煤锅炉SCR烟气脱硝系统的喷氨量进行了优化。结果表明,在H2SO4浓度为0.6mol·... 详细信息

为提高燃煤锅炉SCR烟气脱硝系统的脱硝效率并降低脱硝成本,采用酸洗法对某燃煤锅炉脱硝系统的废弃SCR催化剂进行了再生处理,评价了再生SCR催化剂的活性,并对燃煤锅炉SCR烟气脱硝系统的喷氨量进行了优化。结果表明,在H2SO4浓度为0.6mol·L^(-1)、酸洗时间为30min时,再生SCR催化剂的活性最好,脱硝效率可达88.6%,与新鲜SCR催化剂的脱硝效率差距较小。随着机组负荷的逐渐增大,燃煤锅炉SCR脱硝系统出口氧气体积分数先降低后升高,反应温度逐渐升高,而氨逃逸率和喷氨量均先升高后降低,然后再升高。当机组负荷为560MW时,目标燃煤锅炉SCR烟气脱硝系统的运行效率较高,此时出口氧气体积分数为3.54%,氨逃逸率为1.16×10^(-6),反应温度为380℃,喷氨量为96.46kg·h^(-1)。研究结果可为提高燃煤锅炉SCR烟气脱硝系统的运行效率提供一定的参考。

关键词：燃煤锅炉 SCR烟气脱硝再生SCR催化剂脱硝效率喷氨量

Characterization,Expression Pattern Analysis,and Cellular Localization of Two Homologous MUC2 Genes in Japanese Flounder(Paralichthys olivaceus)

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Journal of Ocean University of China 2024年第4期23卷 1035-1044页

作者： zhu Ying yang Xinsheng LI Zhengjie LI chao School of Marine Science and Engineering Qingdao Agricultural UniversityQingdao 266109China

As a member of mucins family,MUC2 is an important component of mucus,which is characterized by tandem and irregular repeat sequences rich in threonine and *** is strongly expressed by goblet cells that are involved in innate *** flounder is an economically important marine *** this study,two homologous genes of MUC2 were identified,named MUC2-1 and *** on phylogenetic and structural analysis,MUC2-1 and MUC2-2 were clustered in two clades,*** olivaceus MUC2-1 showed a closer relationship with MUC2 in the higher *** healthy tissues were analyzed to determine the expression patterns,and both MUC2 genes showed high expression levels in the gills and *** Edwardsiella tarda challenge,*** MUC2-1 and MUC2-2 both showed significant up-regulated expression in intestine and ***,MUC2-1 was significantly up-regulated in gill cell lines following PGN and polyI:C stimulation,and MUC2-2 was significantly up-regulated in gill cell lines following LPS *** addition,ISH results revealed that MUC2-1 and MUC2-2 showed the same tissue localization in intestine tissues,but displayed different localization in *** siRNA-mediated knockdown of MUC2-1 and MUC2-2 genes in the gill cell lines of Japanese flounder affected the expressions of galnt family genes and smad pathway members that are related to mucosal *** results provided a valuable insight into understanding the functions of MUC2 on mucosal immune system in response to the invasion of bacterial pathogen.

关键词： MUC2 ISH Edwardsiella tarda Paralichthys olivaceus

Remaining Useful Life for Heavy-Duty Railway Cast Steel Knuckles Based on Crack Growth Behavior with Hypothetical Distributions

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Chinese Journal of Mechanical Engineering 2024年第4期37卷 290-305页

作者： chao Wang Tao zhu Bing yang Shoune Xiao Guangwu yang State Key Laboratory of Rail Transit Vehicle System Southwest Jiao tong UniversityChengdu 610031China

The current research on the integrity of critical structures of rail vehicles mainly focuses on the design stage,which needs an effective method for assessing the service *** paper proposes a framework for predicting the remaining useful life(RUL)of in-service structures with and without visible *** hypothetical distribution and delay time models were used to apply the equivalent crack growth life data of heavy-duty railway cast steel knuckles,which revealed the evolution characteristics of the crack length and life scores of the knuckle under different fracture failure *** results indicate that the method effectively predicts the RUL of service knuckles in different failure modes based on the cumulative failure probability curves for different locations and surface crack *** study proposes an RUL prediction framework that supports the dynamic overhaul and state maintenance of knuckle fatigue cracks.

关键词： Heavy-duty railway Cast steel knuckle Remaining useful life Fatigue crack growth Hypothetical distribution

Edge and lithium concentration effects on intercalation kinetics for graphite anodes

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Journal of Energy Chemistry 2024年第3期90卷 337-347,I0009页

作者： Keming zhu Denis Kramer chao Peng School of Mechanical and Precision Instrument Engineering Xi'an University of TechnologyXi'an 710048ShanxiChina Faculty of Mechanical Engineering Helmut-Schmidt UniversityHamburg 22043Germany School of Engineering University of SouthamptonSouthampton SO171BJUK Multiscale Crystal Materials Research Center Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055GuangdongChina

Graphite interfaces are an important part of the anode in lithium-ion batteries(LIBs),significantly influencing Li intercalation *** anodes adopt different stacking sequences depending on the concentration of the intercalated Li *** this work,we performed first-principles calculations to comprehensively address the energetics and dynamics of Li intercalation and Li vacancy diffusion near the no n-basal edges of graphite,namely the armchair and zigzag-edges,at high Li *** find that surface effects persist in stage-Ⅱ that bind Li strongly at the edge ***,the pronounced effect previously identified at the zigzag edge of pristine graphite is reduced in LiC_(12),penetrating only to the subsurface site,and eventually disappearing in LiC_(6).Consequently,the distinctive surface state at the zigzag edge significantly impacts and restrains the charging rate at the initial lithiation of graphite anodes,whilst diminishes with an increasing degree of *** diffusion time for Li hopping to the bulk site from either the zigzag edge or the armchair edge in LiC_(6) was observed during high state of charge due to charge *** controlling Li occupation and diffusion kinetics at this stage is also crucial for enhancing the charge rate.

关键词： Graphite anode Edge Interface Lithium-ion batteries Density functional theory

某燃煤电厂空预器堵塞原因分析及治理措施研究

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化学工程师 2024年第5期38卷 89-93页

作者：祝朝阳师蕴慧陈栓俊安猛猛谭玉恒国网能源和丰煤电有限公司新疆塔城834700 山东创宇环保科技有限公司山东济南250000

为有效解决燃煤电厂的空预器堵塞问题,提高燃煤锅炉的运行效率,在统计了目标燃煤电厂空预器近6个月运行参数的基础上,通过ICP-AES、XRF以及重量法等手段对堵塞物的成分进行了分析,找出造成空预器堵塞的主要原因,并开展了空预器堵塞物化... 详细信息

为有效解决燃煤电厂的空预器堵塞问题,提高燃煤锅炉的运行效率,在统计了目标燃煤电厂空预器近6个月运行参数的基础上,通过ICP-AES、XRF以及重量法等手段对堵塞物的成分进行了分析,找出造成空预器堵塞的主要原因,并开展了空预器堵塞物化学清洗研究实验。结果表明,近期燃煤电厂空预器的烟气阻力明显增大,出现了较为严重的空预器堵塞现象。堵塞物中NH4HSO4的含量最多(高达48.2%),另外还含有较多的CaSO4和(NH4)2SO4等含硫沉积物,这是造成目标燃煤电厂空预器堵塞的主要原因。复合清洗剂QX-12对目标燃煤电厂空预器堵塞物的清洗效果最好,随着清洗剂浓度、清洗液pH值和清洗温度的不断增大以及清洗时间的不断延长,清洗率逐渐增大。当复合清洗剂QX-12的浓度为0.02mol·L^(-1)、清洗液pH值为10、清洗温度为60℃、清洗时间为30min时,清洗率可达到88.6%,清洗效果较好。

关键词：燃煤电厂空预器堵塞原因影响因素治理措施

A physics-informed deep learning framework for spacecraft pursuit-evasion task assessment

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Chinese Journal of Aeronautics 2024年第5期37卷 363-376页

作者： Fuyunxiang yang Leping yang Yanwei zhu College of Aerospace Science and Engineering National University of Defense TechnologyChangsha 410073China

Qualitative spacecraft pursuit-evasion problem which focuses on feasibility is rarely studied because of high-dimensional dynamics,intractable terminal constraints and heavy computational *** this paper,A physics-informed framework is proposed for the problem,providing an intuitive method for spacecraft threat relationship determination,situation assessment,mission feasibility analysis and orbital game rules *** the first time,situation adjustment suggestions can be provided for the weak player in orbital ***,a dimension-reduction dynamics is derived in the line-of-sight rotation coordinate system and the qualitative model is determined,reducing complexity and avoiding the difficulty of target set presentation caused by individual ***,the Backwards Reachable Set(BRS)of the target set is used for state space partition and capture zone ***-time analysis can eliminate the influence of changeable initial state and enable the proposed framework to analyze plural situations ***,a time-dependent Hamilton-Jacobi-Isaacs(HJI)Partial Differential Equation(PDE)is established to describe BRS evolution driven by dimension-reduction dynamics,based on level set ***,Physics-Informed Neural Networks(PINNs)are extended to HJI PDE final value problem,supporting orbital game rules summarization through capture zone evolution ***,numerical results demonstrate the feasibility and efficiency of the proposed framework.

关键词： Spacecraft pursuit-evasion Qualitative differential game Physics-Informed Neural Networks(PINNs) Reachability analysis Hamilton-Jacobi-Isaacs(HJI) Partial Differential Equations(PDEs)

Plutonium utilization in a small modular molten-salt reactor based on a batch fuel reprocessing scheme

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Nuclear Science and Techniques 2024年第4期35卷 15-28页

作者： Xue-chao Zhao Rui Yan Gui-Feng zhu Ya-Fen Liu Jian Guo Xiang-Zhou Cai yang Zou Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China CAS Innovative Academies in TMSR Energy System Chinese Academy of SciencesShanghai 201800China University of Chinese Academy of Sciences Beijing 100049China

A molten salt reactor(MSR)has outstanding features considering the application of thorium fuel,inherent safety,sustainability,and resistance to ***,fissile material^(233)U is significantly rare at the current stage,thus it is difficult for MSR to achieve a pure thorium-uranium fuel ***,using plutonium or enriched uranium as the initial fuel for MSR is more *** this study,we aim to verify the feasibility of a small modular MSR that utilizes plutonium as the starting fuel(SM-MSR-Pu),and highlight its advantages and ***,the structural design and fuel management scheme of the SM-MSR-Pu were ***,the neutronic characteristics,such as the graphite-irradiation lifetime,burn-up performance,and coefficient of temperature reactivity were calculated to analyze the physical characteristics of the *** results indicate that plutonium is a feasible and advantageous starting fuel for a SM-MSR;however,there are certain shortcomings that need to be *** a 250 MWth SM-MSR-Pu,approximately 288.64 kg^(233)U of plutonium with a purity of greater than 90% is produced while 978.00 kg is burned every ten *** temperature reactivity coefficient decreases from -4.0 to -6.5 pcm K^(-1) over the 50-year operating time,which ensures a long-term safe ***,the amount of plutonium and accumulation of minor actinides(MAs)would increase as the burn-up time increases,and the annual production and purity of^(233)U will *** achieve an optimal burn-up performance,setting the entire operation time to 30 years is ***,more than 3600 kg of plutonium eventually accumulate in the *** research is required to effectively utilize this accumulated plutonium.

关键词： Molten salt fuel Plutonium utilization ^(233)U TRUs mole fraction Temperature feedback coefficient