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Journal of Iron and Steel Research International 2020年第11期27卷 1259-1269页

作者： Bing-long Zhang Guang-sheng Wei Run-zao Liu rong Zhu rong-fang su School of Metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing 100083China Beijing Key Laboratory of Special Melting and Preparation of High-End Metal Materials Beijing 100083China Beijing rongcheng Jingye Technology Co. Ltd.Beijing 100083China

The O_(2)-CaO jet with shrouding combustion flame demonstrates some advantages in quick melting and effective slag foaming by delivering lime powder deeply into the molten *** the discrete particle model and the eddy dissipation concept model with the detailed chemical kinetic mechanisms(GRI-Mech 3.0),computational fluid dynamics models of the O_(2)-CaO jet with different shrouding fuel mediums injection were ***,the results of the numerical simulation were validated by the measured data of cold test for O_(2)-CaO ***,the interaction between the particles and the gas jet of the O_(2)-CaO jet and the effect of shrouding fuel medium species on the fluid flow characteristics of the O_(2)-CaO jet were *** show that the CaO particles can be effectively heated by the shrouding high-temperature combustion flame and compared with the O_(2)-CaO jet without shrouding gas,the potential core length was increased about 2.5,3.3 and 4.3 times by the shrouding flame generated from CO,CH_(4) and C_(3)H_(8).And with shrouding CH_(4) and C_(3)H_(8) injection,the CaO particles can be clustered together in a long distance,which would be helpful to improve the utilization efficiency of CaO particles.

关键词： O_(2)-CaO jet Shrouding fuel medium Electric arc furnace steelmaking Numerical simulation Cold test CaO particle

An Alternative Scheme to Generate Arbitrary Anticorrelated States of a Two-Mode Field via A-type Atom Resonant Interaction with a Two-Mode Cavity Field

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Communications in Theoretical Physics 2008年第3期49卷 743-746页

作者： ZHONG Zhi-rong GONG Yan-fang su Wan-Jun Department of Electronic Science and Applied Physics Fuzhou University Fuzhou 350002 China

An alternative scheme is presented to generate arbitrary anticorrelated states of a two-mode field. In the scheme, a sequence of A-type three-level atoms are orderly sent across the cavity to interact with the cavity field initially in the two-mode vacuum state. The detection of all the atoms in the ground state collapses the two-mode field to the desired state. In this way, we can prepare the anticorrelated states of a two-mode field.

关键词： anticorrelated state resonant interaction A-type atom

Numerical simulation and experimental measurement of transport phenomena for coherent jet with CH4 ＋ N2 mixed fuel gas

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Journal of Iron and Steel Research International 2018年第1期25卷 28-36页

作者： Shao-yan Hu rong Zhu Run-zao Liu Kai Dong Fu-hai Liu Guo-hong Ma rong-fang su School of Metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing 100083 China Beijing Key Laboratory of Research Center of SpecialMelting and Preparation of High-end Metal Materials University of Science and Technology BeijingBeijing 100083 China rongcheng Jingye Technology Limited Company Beijing Beijing 100083 China

Coherent jet technology has been widely used in EAF steelmaking process because of the longer potential core length and stronger impacting power of the supersonic oxygen jet. However, more oxygen and fuel gas are consumed to achieve excel- lent characteristics of coherent jets, which causes the increase in steelmaking cost. Computational fluid dynamics simulation and experimental measurement of the coherent jets with CH4 ＋ N2 mixed fuel gas were carried out aiming at reducing the consumption of fuel gas. The numerical simulation results showed good agreement with the experimental data. As a result, high proportion of N2 negatively affects the combustion of CH4, which is not good for the protection of oxygen jets. While the gas composition is 75% CH4 ＋ 25% N2, the N2 addition to the CH4 leads to an expanding of CH4 combustion zone, and the energy generated by the combustion reaction could be delivered to the molten bath more efficiently, which is one control scheme with high performance-price ratio.

关键词： Electric arc furnace Coherent jet Numerical simulation Jet measurement Mixed fuel gas

Efficient and simple synthesis of B_(2)O_(3)-Al_(2)O_(3)nanocomposites assisted by deep eutectic solvent for production of 5-hydroxymethylfurfural from glucose

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Nano Research 2025年第1期18卷 236-248页

作者： Yuchen Wang Kai rong Shanlei Chang Youxing fang Shaojun Dong State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China School of Applied Chemistry and Engineering University of Science and Technology of ChinaHefei 230026China College of Chemistry Jilin UniversityChangchun 130012China

The catalytic conversion of glucose to high valueadded platform chemical 5-hydroxymethylfurfural(HMF)is a promising biorefinery process,and alumina-boria catalysts are considered to be green and mild solid acid catalysts for this catalytic ***,compared to the common synthesis methods with complicated steps,we reported a simple and efficient strategy to prepare B_(2)O_(3)-Al_(2)O_(3)nanocomposites by calcining cost-effective glucose-urea deep eutectic solvent(DES)solution containing the *** prepared B_(2)O_(3)-Al_(2)O_(3)nanocomposites exhibited an open three-dimensional skeleton and two-dimensional porous lamellar substructure,endowing them with a high specific surface area(228.27 m2/g).The introduction of boron changed the ratios of different aluminum species(AlⅣ,AlⅤ,and AlⅥ)and borate species(BO3 and BO4),thus further affecting the acidity and the types of acid sites of the *** prepared B_(2)O_(3)-Al_(2)O_(3)bifunctional acid catalysts possessing abundant Lewis acid sites and adjustable Brønsted acid sites showed complete glucose conversion and 55.38%of HMF yield under the optimum *** study proposed a concise method to synthesize alumina-boria solid acid catalysts assisted by glucose-urea *** hope to extend the application and prospect of this efficient and simple synthesis strategy.

关键词： 5-hydroxymethylfurfural(HMF) deep eutectic solvent glucose alumina-boria acid catalyst

苯接触工人对职业病危害防护知晓情况及其对外周血象改变的影响

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中国健康教育 2017年第1期33卷 70-73,77页

作者：陈仁强刘艳荣于素芳山东大学公共卫生学院山东济南250012 菏泽市疾病预防控制中心山东菏泽274000

目的了解苯接触工人对岗位存在的职业病危害及防护措施知晓情况,分析知识知晓率对外周血象改变的影响。方法采用整群抽样方法对苯接触工人进行问卷调查,利用SPSS 16.0软件对数据进行统计分析。结果共调查530人,男性422人(79.62%),女性10... 详细信息

目的了解苯接触工人对岗位存在的职业病危害及防护措施知晓情况,分析知识知晓率对外周血象改变的影响。方法采用整群抽样方法对苯接触工人进行问卷调查,利用SPSS 16.0软件对数据进行统计分析。结果共调查530人,男性422人(79.62%),女性108人(20.38%)。46.60%的工人不太了解,47.17%的工人一般了解,6.23%的工人比较清楚;知晓情况的影响因素有文化程度和工龄。正确使用个人防护用品的工人白细胞计数减少检出率(2.10%)、外周血象异常率(3.15%)显著低于非正确使用者(7.79%,12.30%);注意检查并及时处理机器设备的跑、冒、滴、漏的工人白细胞计数减少检出率(3.79%)、红细胞计数减少检出率(1.79%)、外周血象异常率(5.58%)低于非注意检查并及时处理者(9.76%、7.32%、17.07%);采样、检尺时站在上风侧的工人外周血象异常率(4.35%)低于非上风侧者(25.00%),差异均有统计学意义(P<0.05)。苯接触工人外周血象异常率与白细胞计数减少率有随知晓程度的增高而降低的趋势(P<0.01)。结论苯接触工人对岗位存在的职业病危害及防护措施知晓程度较低,知晓本岗位存在的职业病危害及防护措施是外周血象改变的保护性因素,正确的职业病危害防治行为可以减少外周血象损害的发生。

关键词：苯作业工人职业病危害因素防护措施外周血象

Inhibiting ceramide synthase 5 expression in microglia decreases neuroinflammation after spinal cord injury

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Neural Regeneration Research 2025年第10期20卷 2955-2968页

作者： Wei Zhang Yubao Lu Ruoqi Shen Yingjie Wu Chenrui Liu Xingxing fang Liangming Zhang Bin Liu Limin rong Department of Spine surgery The Third Affiliated HospitalSun Yat-sen UniversityGuangzhouGuangdong ProvinceChina National Medical Products Administration(NMPA)Key Laboratory for Quality Research and Evaluation of Cell Products GuangzhouGuangdong ProvinceChina Guangdong Provincial Center for Quality Control of Minimally Invasive Spine surgery GuangzhouGuangdong ProvinceChina Guangdong Provincial Center for Engineering and Technology Research of Minimally Invasive Spine surgery GuangzhouGuangdong ProvinceChina

Microglia,the resident monocyte of the central nervous system,play a crucial role in the response to spinal cord ***,the precise mechanism remains *** investigate the molecular mechanisms by which microglia regulate the neuroinflammatory response to spinal cord injury,we performed single-cell RNA sequencing dataset analysis,focusing on changes in microglial *** found that the MG1 subpopulation emerged in the acute/subacute phase of spinal cord injury and expressed genes related to cell pyroptosis,sphingomyelin metabolism,and neuroinflammation at high ***,we established a mouse model of contusive injury and performed intrathecal injection of siRNA and molecular inhibitors to validate the role of ceramide synthase 5 in the neuroinflammatory responses and pyroptosis after spinal cord ***,we established a PC12-BV2 cell co-culture system and found that ceramide synthase 5 and pyroptosis-associated proteins were highly expressed to induce the apoptosis of neuron *** ceramide synthase 5 expression in a mouse model of spinal cord injury effectively reduced ***,ceramide synthase 5-induced pyroptosis was dependent on activation of the NLRP3 signaling *** ceramide synthase 5 expression in microglia in vivo reduced neuronal apoptosis and promoted recovery of neurological ***2g7 formed a“bridge”between sphingolipid metabolism and ceramide synthase 5-mediated cell death by inhibiting the NLRP3 signaling ***,these findings suggest that inhibiting ceramide synthase 5 expression in microglia after spinal cord injury effectively suppressed microglial pyroptosis mediated by NLRP3,thereby exerting neuroprotective effects.

关键词： ceramide synthase 5 gasdermin D microglia neuroinflammation NLRP3 nuclear factor kappa B Pla2g7 pyroptosis sphingomyelin metabolism spinal cord injury

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动力学分光光度法测定海盐中的痕量碘

山西师范大学学报（自然科学版） 2002年第3期16卷 40-42页

作者：任荣芳韩素琴阎立春刘二保山西师范大学化学与材料科学学院山西临汾041004

在硫酸介质中 ,基于高碘酸钾氧化碘离子生成碘 ,进而使次甲基蓝褪色的反应 ,建立了测定痕量碘的新方法 .线性范围为 0μg/ m L～ 7.2μg/ m L ,检出限为 0 .33μg/ m L.方法简便、灵敏、选择性好 ,用于海盐中痕量碘的测定 ,结果满意 .

关键词：痕量碘动力学分光光度法次甲基蓝高碘酸钾海盐含量测定食品检测

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毛细管电泳柱后化学发光检测器组装及应用

山西师范大学学报（自然科学版） 2001年第4期15卷 31-34页

作者：任荣芳韩素琴刘二保梁建功山西师范大学化学系山西临汾041004

报道了一种改进的毛细管电泳柱后化学发光检测装置 .将现行装置中的光电倍增管光电流检测器改成噪声和暗电流更小、灵敏度更高的光电倍增管光子计数器 ,反应毛细管末端出口处设置一引流装置 ,解决了由于柱后液滴形成而引起基线规律性波... 详细信息

报道了一种改进的毛细管电泳柱后化学发光检测装置 .将现行装置中的光电倍增管光电流检测器改成噪声和暗电流更小、灵敏度更高的光电倍增管光子计数器 ,反应毛细管末端出口处设置一引流装置 ,解决了由于柱后液滴形成而引起基线规律性波动的问题 .利用改进后的装置 ,对铁 ( )的检出限可达 1 .0× 1 0 - 10 mol/L(2 .0× 1 0 - 18mol)比灵敏度最高的 FIA-ICP- MS低 1 0倍 .方法快速简便 ,适合于痕量物质的检测 .

关键词：毛细管电泳化学发光检测器分析化学铁含量检测分离技术引流装置

A bi-population immune algorithm for weapon transportation support scheduling problem with pickup and delivery on aircraft carrier deck

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Defence Technology（防务技术） 2023年第4期22卷 119-134页

作者： fang Guo Wei Han Xi-chao su Yu-jie Liu rong-wei Cui Naval Aviation University No.188Ermalu RoadZhifu DistrictYantai264001Shandong ProvinceChina

The weapon transportation support scheduling problem on aircraft carrier deck is the key to restricting the sortie rate and combat capability of carrier-based *** paper studies the problem and presents a novel solution *** the interference of the carrier-based aircraft deck layout on the weapon transportation route and precedence constraint into consideration,a mixed integer formulation is established to minimize the total objective,which is constituted of makespan,load variance and accumulative transfer time of support *** approach is developed for the ***,based on modeling the carrier aircraft parked on deck as convex obstacles,the path library of weapon transportation is constructed through visibility graph and Warshall-Floyd *** then propose a bi-population immune algorithm in which a population-based forward/backward scheduling technique,local search schemes and a chaotic catastrophe operator are ***,the randomkey solution representation and serial scheduling generation scheme are adopted to conveniently obtain a better *** Taguchi method is additionally employed to determine key parameters of the ***,on a set of generated realistic instances,we demonstrate that the proposed algorithm outperforms all compared algorithms designed for similar optimization problems and can significantly improve the efficiency,and that the established model and the bi-population immune algorithm can effectively respond to the weapon support requirements of carrier-based aircraft under different sortie missions.

关键词： Carrier-based aircraft Weapon transportation support scheduling Pickup and delivery Bi-population immune algorithm

The Singularly Perturbed Problem of Vector Integro-differential Equations

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Acta Mathematicae Applicatae Sinica 2010年第2期26卷 267-276页

作者： su-rong Lin Department of Computer Fujian Broadcasting TV University Fuzhou 350003 China

The singularly perturbed boundary value problem of scalar integro-differential equations has been studied extensively by the differential inequality method . However, it does not seem possible to carry this method over to a corresponding nonlinear vector integro-differential equation. Therefore , for n-dimensional vector integro-differential equations the problem has not been solved fully. Here, we study this nonlinear vector problem and obtain some results. The approach in this paper is to transform the appropriate integro-differential equations into a canonical or diagonalized system of two first-order equations.

关键词： Integro-differential equation singular perturbation boundary value problem diagonalization method