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Role of iron ore in enhancing gasification of iron coke:Structural evolution,influence mechanism and kinetic analysis

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 58-69页

作者： Jie Wang wei Wang Xuheng Chen Junfang Bao Qiuyue Hao Heng Zheng Runsheng Xu School of Chemistry and Materials Science Hubei Engineering UniversityXiaogan 432000China Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education Wuhan University of Science and TechnologyWuhan 430081China Institue of Ironmaking Technology Baosteel Central Research InstituteShanghai 201999China State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China

The utilization of iron coke provides a green pathway for low-carbon *** uncover the influence mechanism of iron ore on the behavior and kinetics of iron coke gasification,the effect of iron ore on the microstructure of iron coke was ***,a comparative study of the gasification reactions between iron coke and coke was conducted through non-isothermal thermogravimetric *** findings indicate that compared to coke,iron coke exhibits an augmentation in micropores and specific surface area,and the micropores further extend and *** provides more adsorption sites for CO_(2) molecules during the gasification process,resulting in a reduction in the initial gasification temperature of iron *** the heating rate in non-isothermal gasification can enhance the reactivity of iron *** metallic iron reduced from iron ore is embedded in the carbon matrix,reducing the orderliness of the carbon structure,which is primarily responsible for the heightened reactivity of the carbon *** kinetic study indicates that the random pore model can effectively represent the gasification process of iron coke due to its rich pore ***,as the proportion of iron ore increases,the activation energy for the carbon gasification gradually decreases,from 246.2 kJ/mol for coke to 192.5 kJ/mol for iron coke 15wt%.

关键词： low-carbon ironmaking iron coke gasification structural evolution kinetic model

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生物炭表面NO吸附特性的量子化学研究

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原子与分子物理学报 2025年第5期42卷 7-16页

作者：朱世遥薛婕雯张雨轩陈斌武卫东上海理工大学上海200093 上海工程技术大学城市轨道交通学院上海201620 上海交通大学机械与动力工程学院上海200240

生物炭表面具有丰富的官能团,通过化学吸附可以与一氧化氮(NO)分子形成稳定化学键,廉价易得且环境适应性强,具有广阔的应用前景.然而,当前对生物炭表面NO吸附特性的研究大多仍停留在宏观层面,缺乏深入的微观机制解析.本文基于密度泛函理... 详细信息

生物炭表面具有丰富的官能团,通过化学吸附可以与一氧化氮(NO)分子形成稳定化学键,廉价易得且环境适应性强,具有广阔的应用前景.然而,当前对生物炭表面NO吸附特性的研究大多仍停留在宏观层面,缺乏深入的微观机制解析.本文基于密度泛函理论,深入研究了生物炭表面一氧化氮(NO)的吸附转化路径,从分子层面揭示了生物炭对NO的吸附特性.研究结果显示,N-down型吸附构型的能量普遍低于O-down型吸附构型,是较为可能的吸附构型,并且含氧原子的官能团在NO的吸附和氨(NH_(3))的形成过程中扮演着关键角色.此外,通过对N-down型构型的进一步分析发现,在与活性位点结合后,NO将优先取代羟基,最终在生物质焦炭表面转化为NH_(3).同时,基于变分过渡态理论(CVT)计算了反应速率,发现NO优先反应的途径将受到不同区域内反应速率的限制.本文通过量子化学方法深入揭示了生物炭表面NO吸附特性的微观机制,为优化生物炭在NO治理中的应用提供了理论支持.

关键词：吸附生物炭密度泛函理论

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Differential Proteomics Analysis of Endometriosis in Blood Stasis Syndrome

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Chinese Journal of Integrative Medicine 2018年第12期24卷 925-929页

作者： wen Yi WANG Yan FENG Ting-ting wei Shao-bin Gynecology Department of Traditional Chinese Medicine Clinical Medical CollegeChengdu University of Traditional Chinese Medicine

Objective： To investigate the innate characters of 3 endometriosis （EMT） syndromes, blood stasis （BS）, qi stagnation and blood stasis （QSBS） as well as Shen （Kidney） deficiency and blood stasis （KDBS） in terms of proteomics, lay a molecular biological basis for the differentiation of various blood stasis syndromes of EMT, establish a EMT microscopic syndrome differentiation and diagnosis system in terms of proteomics, discover the evolution principles and therapeutic targets of these EMT syndromes, and search their significant molecular markers and genetic intervention targets. Methods： Six specimens from the ectopic and entopic endometrium tissues of patients with EMT in each syndrome, BS, QSBS as well as KDBS, in the early proliferative phase of the menstrual cycle, and 6 specimens from normal endometrium tissues in the early proliferative phase of the menstrual cycle were obtained. Three groups were formed in each syndrome by mixing two random specimens in equal amount, and then their respective two-dimensional electrophoresis graphs were obtained after total protein extraction. Finally, the detected differences in protein expression were identified through matrix-assisted laser desorption Ionization-time of flight mass spectrometry （MALDI-TOF/MS） and protein database. Results： The results of differential proteins expressed in each syndrome were shown as follows： BS syndrome had 2 differential proteins in entopic endometrium and 1 differential protein in ectopic endometrium; KDBS syndrome had 3 in entopic endometrium and 3 in ectopic endometrium; and QSBS syndrome had 3 in entopic endometrium and 4 in ectopic endometrium. It was found out that annexin was highly expressed in both entopic and ectopic endometrium of KDBS syndrome; and myosin light chain 3 was highly expressed in both entopic and ectopic endometrium of QSBS syndrome. Conclusion： There are differential protein expressions among the 3 EMT syndromes, which might be the inner origin of syndrome characte

关键词： endometriosis blood stasis syndrome proteomics two-dimensional electrophoresis mass spectrum

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Transgenic Brassica chinensis plants expressing a bacterial codA gene exhibit enhanced tolerance to extreme temperature and high salinity

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2010年第11期11卷 851-861页

作者： Qing-bin WANG wen XU Qing-zhong XUE wei-ai SU Department of Agronomy College of Agriculture and Biotechnology Zhejiang University Hangzhou 310029 China Shanghai Institute of Plant Physiology and Ecology Chinese Academy of Science Shanghai 200032 China School of Resource and Environment Management Guizhou College of Finance and Economics Guiyang 550004 China

Transgenic Brassica compestris *** plants expressing a choline oxidase(codA) gene from Arthrobacter globiformis were obtained through Agrobacterium tumefaciens-mediated *** the transgenic plants,codA gene expression and its product transportation to chloroplasts were detected by the enzyme-linked immunosorbent assay(ELISA) examination,immunogold localization,and 1 H-nuclear magnetic resonance( 1 H-NMR) . Stress tolerance was evaluated in the T3 plants under extreme temperature and salinity *** plants of transgenic line 1(L1) showed significantly higher net photosynthetic rate(Pn) and Pn recovery rate under high(45°C,4 h) and low temperature(1°C,48 h) treatments,and higher photosynthetic rate under high salinity conditions(100,200,and 300 mmol/L NaCl,respectively) than the wild-type *** enhanced tolerance to high temperature and high salinity stresses in transgenic plants is associated with the accumulation of betaine,which is not found in the wild-type *** results indicate that the introduction of codA gene from Arthrobacter globiformis into Brassica compestris *** could be a potential strategy for improving the plant tolerance to multiple stresses.

关键词： Brassica compestris L. spp. chinensis codA Stress Glycine betaine Net photosynthetic rate (Pn)

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Crystallization mechanism of glass-ceramics prepared from stainless steel slag

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Rare Metals 2018年第5期37卷 413-420页

作者： wen-Di Fan Qiang-wei Yang bin Guo Bo Liu Shen-Gen Zhang Institute for Advanced Materials and Technology University of Science and Technology Beijing

Glass-ceramics have been prepared by using stainless steel slag, fly ash and coal fly ash that were figobtained from industrial solid waste. The crystallization behavior and mechanical characterization of the glass-ce-ramics with different （CaO ＋ MgO）/（SiO2 ＋ Al2O3） content ratios were studied. While the basicity decreases from 1.2 to 0.9 cm^-3, the bridge oxygen content increases from 1.18 ~ 10^21 to 1.34 ~ 10^21 cm^-3. According to the deconvolution of Raman spectra, the relative abundance of the stretching of Si-Onb bond （Q^n units） can be obtained. The increase in the Q^3 units dominates the polymerization in the process of decreasing basicity. This change in bonding is demonstrated to lead to polymerization of the glass network and the increase in crystallization activation energy from 336.0 to 360.7 kJ·mol^-l. The results demonstrate that the production of the glass-ceramics from industrial steel slag, fly ash and coal fly ash is cost-effective and offers advantages over other production methods.

关键词： Glass-ceramics Stainless steel slag Augite

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Effect of Heat Treatment on the Microstructure and Mechanical Properties of the Modified 718 Alloy

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Acta Metallurgica Sinica(English Letters) 2018年第11期31卷 1224-1232页

作者： Da-wei Han Lian-Xu Yu Fang Liu bin Zhang wen-Ru Sun School of Materials Science and Engineering Northeastern University Shenyang 110819 China Chongqing Skyrizon Aero-engine Co. Ltd Chongqing 401135 China Institute of Metal Research Chinese Academy of SciencesShenyang 110016 China

M718 alloy with an extra high Mo content of 7.50 wt% which reduced Nb addition and increased A1 and Ti additionswithin the composition specifications of 718 alloy has been designed to increase the service temperature of 718 alloy. Andthe effect of the heat treatment on the microstructure and mechanical properties of M718 alloy has been investigated in thisstudy. The results showed that Laves phase precipitated on the grain boundaries of M718 alloy instead of 6-Ni3Nb phase in718 alloy, and γ″ and γ′ phases precipitated in the matrix of M718 alloy as that in 718 alloy. Increasing the solutiontemperature from 960 to 1050 ℃ noticeably reduced the intergranular precipitation of Laves phase. The precipitation ofLaves phase was appropriate at 1020 ℃ for improving the grain boundary cohesion. Increasing the two-stage agingtemperatures markedly increased the sizes of γ″ and γ′ phases. As a result, the strength of M718 alloy increased.

关键词： Heat treatment Mo 718 alloy Microstructure Mechanical properties

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Native conjugation between proteins and [60]fullerene derivatives using SpyTag as a reactive handle

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Chinese Chemical Letters 2021年第1期32卷 353-356页

作者： Guangzhong Yin Jingjing wei Yu Shao wen-Hao Wu Lianjie Xu wen-bin Zhang Beijing National Laboratory for Molecular Sciences Key Laboratory of Polymer Chemistry and Physics of the Ministry of EducationCollege of Chemistry and Molecular EngineeringCenter for Soft Matter Science and EngineeringPeking UniversityBeijing 100871China College of Chemical and Environmental Engineering Anyang Institute of TechnologyAnyang 455000China

Herein,we report the facile conjugation between proteins and water-soluble [60]fullerene derivatives(DC_(60)) under native conditions using SpyTag as a reactive ***-soluble [60] fullerene derivatives were first prepared via sequential bingel-Hirsch reaction and "clicked" with SpyTag to give DC_(60)-SpyTag for native conjugation with proteins by the highly efficient SpyTag-SpyCatcher *** bioconjugation was confirmed by MALDI-TOF MS spectra and SDS-PAGE *** TEM and UVvis spectroscopic study further revealed that the DC_(60) could alter the optical performance and induce aggregation of the target *** thus provides a general and robust method for modifying proteins with C_(60) derivatives and could potentially be adapted for native conjugation between proteins and other nonbiological motifs as well.

关键词： SpyTag Spy Catcher Fullerene Protein Bioconjugate

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Synthesis of HTLcs modified by K_(3)PO_(4) for side chain alkylation of toluene with methanol

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Green Energy & Environment 2021年第6期6卷 961-967页

作者： Chunyao Hao Yueli wen bin Wang Faraz Ahmad Yuhua Liu Huijun Li wei Huang Key Laboratory of Coal Science and Technology(Taiyuan University of Technology) Ministry of Education and Shanxi ProvinceTaiyuan030024ShanxiChina College of Environmental Science and Engineering Taiyuan University of TechnologyTaiyuanShanxi030024China Coal Conversion Technology&Engineering Co. LtdTaiyuan University of TechnologyTaiyuanShanxi030024China

A series of calcined HTLcs catalysts were prepared and modified with potassium phosphate by impregnation method to clarify the influence of catalyst alkalinity on the side chain alkylation of toluene with methanol for synthesis of ethylbenzene and *** catalysts were characterized by X-ray diffraction(XRD),N_(2)physical adsorption-desorption,Fourier-transform infrared spectroscopy(FT-IR),Scanning electron microscopy(SEM),X-ray photoelectron spectrometry(XPS),NH_(3)temperature-programmed desorption(NH_(3)-TPD)and CO_(2)temperature-programmed desorption(CO_(2)-TPD).It was found that the selectivity of styrene was highest(39.25%)when the K_(3)PO_(4)loading was 7.5 wt%.And the total yield of styrene and ethylbenzene could reach 65.08%with 10 wt%K_(3)PO_(4)*** might due to the fact that the addition of K_(3)PO_(4)could adjust the acid and basic sites of *** addition,appropriate strength and amount of basic sites were favorable to producing more styrene.

关键词： Toluene alkylation Styrene Hydrotalcite-like compounds(HTLcs) Potassium phosphate

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Junctional adhesion molecule-like protein as a novel target for kaempferol to ameliorate lung adenocarcinoma

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Journal of Integrative Medicine 2023年第3期21卷 268-276页

作者： Qian Wu Yong-bin Wang Xiao-wen Che Hui Wang wei Wang Department of Pulmonary and Critical Care Medicine the Second Hospital of Shandong UniversityJinan 250033Shandong ProvinceChina

Objective:Although there have been improvements in targeted therapy and immunotherapy,the majority of lung adenocarcinoma(LUAD)patients still lack effective ***,it is urgent to screen for new diagnosis biomarkers and pharmacological *** adhesion molecule-like protein(JAML)was considered to be an oncogenic protein and may be a novel therapeutic target in *** is a natural flavonoid that exhibits antitumor activities in ***,the effect of kaempferol on JAML is still ***:Small interfering RNA was used to knockdown JAML *** cell viability was determined using the cell counting kit-8 *** proliferation of LUAD cells was evaluated using the 5-ethynyl-2'-deoxyuridine incorporation *** migration and invasion of LUAD cells were evaluated by transwell *** mechanisms were explored by Western ***:JAML knockdown suppressed proliferation,migration and invasion of LUAD cells,and JAML deficiency restrained epithelial-mesenchymal transition(EMT)via inactivating the phosphoinositide 3-kinase/protein kinase B/mammalian target of rapamycin(PI3K/AKT/mTOR)*** a PI3K activator(740Y-P),rescue experiments showed that phenotypes to JAML knockdown in LUAD cells were dependent on the PI3K/AKT/mTOR *** also inhibited proliferation,migration and invasion of A549 and H1299 cells and partially suppressed EMT through the PI3K/AKT/mTOR *** of JAML ameliorated the inhibitory effect of kaempferol on LUAD *** exerted anticancer effects by targeting ***:JAML is a novel target for kaempferol against LUAD cells.

关键词： Junctional adhesion molecule-like protein Kaempferol Lung adenocarcinoma Proliferation Invasion Migration

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Internal flow mechanism of cone-straight nozzle

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Petroleum Science 2021年第5期18卷 1507-1519页

作者： Tian-wen Jiang Zhong-wei Huang Jing-bin Li Yi-Su Zhou State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum(Beijing)Beijing102249China

Cone-straight nozzle has been widely used in well bore cleaning,assisting drilling in petroleum industries due to its good clustering *** structure including cone angle and throat length has also been studied by scholars and been ***,the internal flow properties have not been investigated clearly especially the boundary layer *** this paper LES model is used to capture the small-scale flow state near the nozzle *** RNG k-epsilon model is used to validate the accuracy of the LES simulation,the simulation data shows a good *** different inlet velocities are considered in *** velocity distribution,shear stress,boundary layer thickness,skin friction coefficient and Reynolds stress are analyzed,the boundary layer separation and transition are *** state of flow inside nozzle is laminar with inlet velocity of 1 m/s and gradually transferred into turbulent with the increasing inlet *** most severe turbulence is at the entrance of the throat section,the vortex structure appears at the entrance of converging section and dose not survive,the vortex structure appears in sequence along the throat section wall when the inlet velocity is set to 5 m/s and 10 m/s the flow properties along the conical nozzle are revealed clearly,the main flow resistance is mainly produced in throat *** these works aim to provide theoretical support for the further processing optimization of the nozzle structure and reduce the flow resistance of nozzle.

关键词： Cone-straight nozzle Boundary layer Flow resistance

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