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Chinese Chemical Letters 2006年第1期17卷 109-112页

作者： Chang Yuan HU Feng Yi li rong bin ZHANG li HUA Department of Chemistry Nanchang University Nanchang 330047

Uniform Ni-B amorphous alloys about 14 nm have been prepared on CNTs-A support,named Ni-B/CNTs-A. In comparison with the Ni-B/CNTs amorphous catalyst, Ni-B/CNTs-A showed higher nickel loading, determined by ICP and be... 详细信息

关键词： CNTs aniline Ni-B amorphous alloy catalyst acetylene selective hydrogenation.

Iguratimod promotes transformation of mononuclear macrophages in elderly patients with rheumatoid arthritis by nuclear factor-κB pathway

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World Journal of Clinical Cases 2021年第10期9卷 2181-2191页

作者： Sha liu li-Ping Song rong-bin li Le-Heng Feng Hui Zhu Department of Rheumatism The First Hospital of QiqiharAffiliated Qiqihar Hospital of Southern Medical UniversityQiqihar 161005Heilongjiang ProvinceChina

BACKGROUND The role of macrophages in rheumatoid arthritis(RA)and its mechanism have attracted much attention in RA *** accumulate in the synoviums of RA,and the proportion of M1 type pro-inflammatory macrophages is higher than that of M2 type anti-inflammatory macrophages,leading to the secretion of inflammatory molecules and the aggravation of inflammatory reaction,which has made macrophages a potential target of RA *** is a kind of cyclo-oxygenase-2 inhibitor that affects macrophage *** is speculated that its anti-inflammatory and anti-rheumatic effects may be related to the regulation of macrophage M1/M2 *** To investigate the effects of Iguratimod on the polarity of mononuclear macrophages in elderly patients with *** Elderly patients with RA and joint effusion were selected,including 10 men and 25 women,with an average age of 66.37±4.42 *** were treated with oral administration of 25 mg Iguratimod(Iremod,State Food and Drug Administration Approval No.H20110084)twice daily for 12 *** Activity Score 28 and Health Assessment Questionnaire score were collected according to the disease severity before and after *** blood and joint effusion fluid were collected,mononuclear macrophages were extracted and expression of cell surface markers CD86,CD64,CD163,and CD206 was analyzed by flow *** concentration of inflammatory factors interleukin(IL)-6,IL-1β,transforming growth factor-β,and IL-4 in the joint effusion fluid was analyzed by enzyme-linked immunosorbent *** of mononuclear cells inhibitor of nuclear factor-κB(IκB)and phosphorylated IκB in peripheral blood was analyzed by western *** Disease Activity Score 28 score and Health Assessment Questionnaire score of patients treated with Iguratimod decreased *** percentage of cell surface markers CD86 and CD64 decreased significantly,and the percentage of CD163 and CD206 increased signifi

关键词： Rheumatoid arthritis Iguratimod Macrophage Polarity Nuclear factor-κB

Growth and characterization of ZnTe single crystal via a novel Te flux vertical Bridgman method

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Rare Metals 2021年第4期40卷 858-864页

作者： Min Jin Wen-Hui Yang Xiang-Hu Wang rong-bin li Ya-Dong Xu Jia-Yue Xu College of Materials Shanghai Dianji UniversityShanghai 201306China State Key Laboratory of Solidification Processing Northwestern Polytechnical UniversityXi’an 710072China School of Materials Science and Engineering Shanghai Institute of TechnologyShanghai 201418China

In this work,an Ⅱ-Ⅵ group semiconductor zinc telluride(ZnTe) single crystal is prepared by a novel vertical Bridgman method using Te as *** initial mole ratio of Zn/Te=3:7 is designed for raw material *** polycrystalline combined with rich Te is effectively fabricated through rocking technique at 1100℃.A Φ 25 mm × 65 mm ZnTe boule is successfully grown under a~40 ℃·cm^(-1) temperature gradient with a growth speed of 5 mm·day^(-1).The as-grown ZnTe crystal has a standard 1:1 stoichiometric ratio and pure F43 m phase *** maximum transmittance perpendicular to(110) plane is about 64%,and the band gap(E_(g)) is tested to be 2.225 ***(THz) examination results demonstrate that the time of the highest THz signal is around 17 ps and the frequency of the highest THz transmission is about 0.78 THz,implying that the ZnTe crystal grown by the present Te flux vertical Bridgman method has a good feasibility for THz application.

关键词： ZnTe crystal Te flux Vertical Bridgman method Terahertz property

Interaction mechanism between BaZrO_(3)/Y_(2)O_(3) refractory and Ti_(2)Ni alloy melts

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Journal of Iron and Steel Research International 2024年第6期31卷 1376-1388页

作者： Xiao Hou Guang-yao Chen Jian liu Ming-rui Lv Fei-hai Yu Qi-sheng Feng rong-bin li Xiong-gang Lu Chong-he li State Key Laboratory of Advanced Special Steel and Shanghai Key Laboratory of Advanced Ferromeallurgy and School of Materials Science and Engineering Shanghai UniversityShanghai 200072China Shanghai Special Casting Engineering Technology Research Center Shanghai 201605China Zhejiang Institute of Advanced Materials Shanghai UniversityJiashan 314100ZhejiangChina School of Materials Science and Engineering Shanghai DianJi UniversityShanghai 201306China

The titanium alloys with highly chemical activity require stable crucible refractories that can withstand the erosion of alloy *** phase composition and microstructure are crucial factors that affect the stability of the refractory *** effect of Y_(2)O_(3) on the composition and microstructure of BaZrO_(3) crucible was systematically investigated,and the improved mechanism of the stability of BaZrO_(3)/Y_(2)O_(3) crucible was clarified in comparison with the BaZrO_(3) *** results showed that the erosion layer thickness of the BaZrO_(3)/Y_(2)O_(3) crucible was only 63μm,which was far less than that in the BaZrO_(3) crucible(485μm),and the erosion layer in the BaZrO_(3)/Y_(2)O_(3) crucible also exhibited a higher density than that in the BaZrO_(3) *** the sintering,Y_(2)O_(3) could improve the densification of the BaZrO_(3) crucible due to the solid solution effect between Y_(2)O_(3) and ZrO_(2),which also caused the evaporation of BaO,resulting in the generation of a Y_(2)O_(3)(ZrO_(2))film on the surface of the ***,the Y_(2)O_(3)(ZrO_(2))had higher thermodynamic stability than Y_(2)O_(3),confirming that the BaZrO_(3)/Y_(2)O_(3) crucible with high density exhibited a superior erosion resistance to titanium *** dual-phase structure provides a strategy to design a long-life and stable refractory for melting titanium alloys.

关键词： Barium zirconate Yttrium oxide Dual-phase refractory Titanium alloy Interaction

Partitioning of nitrogen atoms and its effect on retained austenite content in an ultra-low-carbon Cr-Mn-N stainless steel

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Journal of Iron and Steel Research International 2021年第8期28卷 1030-1036页

作者： Zhe Zhu Wan-tang Fu rong-bin li Qi-wei Chen Ze-an Zhou Zhen-hua Wang Jia-qing liu Shu-hua Sun State Key Laboratory of Metastable Materials Science and Technology Yanshan UniversityQinhuangdao 066004HebeiChina Shanghai Engineering Research Center of Hot Manufacturing Shanghai Dianji UniversityShanghai 201306China School of Science Yanshan UniversityQinhuangdao 066004HebeiChina

The partitioning of nitrogen atoms and its effect on the retained austenite content(RAC)during quenching and partitioning(Q&P)process were investigated by dilatometry,X-ray diffraction,and field emission transmission electron microscopy with energy-dispersive spectrometer mapping in a 00Cr13Mn8N *** partitioning by diffusion of N atoms from martensite to austenite occurred at 400℃after quenching.N atoms are enriched in austenite after partitioning,and the stability of these N-rich austenite is improved and retained at room temperature during subsequent *** different quenching temperatures(QTs)result in different phase fractions after *** the increase in QT,RAC first increases and then decreases,and the maximum RAC is 28.5 vol.%after quenching at 80℃.A mathematical model was developed to rapidly and accurately characterize the phase fraction in Q&P process based on the relative length change of the samples partitioned after quenching at different QTs.

关键词： Nitrogen partitioning Quenching and partitioning Retained austenite Energy-dispersive spectrometer mapping Dilatometry Ultra-low-carbon stainless steel

EMF CHANGES MADE BY COLD DRAWING AND HEATING TREATMENT IN TYPE K HEAVY-GAUGE SHEATHED THERMOCOUPLE CABLES

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Journal of Shanghai Jiaotong university(Science) 2002年第1期7卷 80-83页

作者： ZHAO rong-bin(赵容斌) li Guan-jun (李冠军) School of Materials Science and Eng. Shanghai Jiaotong Univ. Shanghai 200030 China Shanghai Xinchuan Instrument Company Shanghai 200125

The electromotive force (EMF) changes in type K heavy gauge sheathed thermocouple cables was investigated. To cope with this discrepancy owing to EMF steep reduction and understand the difference between type K heavy gauge sheathed thermocouple cables and small ones, the affects of EMF from sheath pipe, drawing times, annealing temperature, annealing time and annealing way were mainly studied and appropriately analyzed. The results show the change in the thermal EMF is related with the residual stress and crystal defects, which are imparted by cold work during manufacture. The affects of cold work can be removed by annealing. Finally, a feasible way of fabricating heavy gauge sheathed thermocouples was suggested according to practical situation.

关键词： EMF changes cold drawing heating treatment type K heavy-gauge thermocouple

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考虑隧道围岩蠕变的复合式衬砌受力规律

交通运输工程学报 2018年第2期18卷 53-60页

作者：谷拴成黄荣宾苏培莉西安科技大学建筑与土木工程学院陕西西安710054

将锚杆作用力视为体力作用于围岩内,将初期支护与锚杆锚固范围内的围岩视为围岩加固体,建立了围岩力学模型,基于统一强度理论分析了隧道蠕变条件下的围岩应力与变形规律,推导了复合衬砌应力与变形表达式,分析了隧道围岩蠕变过程中支护... 详细信息

将锚杆作用力视为体力作用于围岩内,将初期支护与锚杆锚固范围内的围岩视为围岩加固体,建立了围岩力学模型,基于统一强度理论分析了隧道蠕变条件下的围岩应力与变形规律,推导了复合衬砌应力与变形表达式,分析了隧道围岩蠕变过程中支护结构受力特点及不同初期支护强度下二次衬砌受力变化规律。分析结果表明:当初期支护按照"初期支护应与围岩共同受力且能保证施工阶段安全"的原则进行设计时,在围岩蠕变作用下,锚杆与喷射混凝土最大受力分别为48、286kPa,与开挖阶段相比分别增大了57.5%、13.7%,且超过支护结构最大承载力,说明在进行初期支护设计时,仅满足隧道开挖过程中围岩稳定而不考虑蠕变产生的附加应力影响,可能造成隧道运营过程中初期支护结构破坏,不利于隧道稳定;当二次衬砌厚度由300mm增大至500mm时,二次衬砌最大受力增大了40.5%,荷载分担比由25.2%增大至36.2%,而增大初期支护强度后,二次衬砌受力减小了14.5%,荷载分担比由25.2%减小至22.3%,说明二次衬砌荷载随初期支护强度增大而减小,而随自身强度增大而增大,应重视初期支护与二次衬砌支护强度的协调配置,实现围岩压力的合理分配;在软岩地质条件下,应保证隧道施工过程中围岩稳定并避免围岩蠕变过程中发生结构破坏,以实现初期支护与二次衬砌共同承担蠕变引起的附加应力。

关键词：隧道工程复合式衬砌应力应变围岩蠕变统一强度理论

Evaluation of triple anti-platelet therapy by modified thrombelastography in patients with acute coronary syndrome

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Chinese Medical Journal 2008年第9期121卷 850-852页

作者： REN Yi-hong YANG Ting-shu WANG Yu GAI Lu-yue liU Hong-bin CHEN lian WANG Hong-ye WANG Chun-ya XU Xiu-li JIN Jing XIN You-hong li rong-bin li Hai-yan liN lin liU Chun-xue Department of Cardiology General Hospital of the Chinese People's Liberation Army Beijing 100083 China

Most cases of acute coronary syndrome （ACS） involve coronary atherosclerosis and plaque rupture, as well as subsequent thrombosis. The initial thrombotic events leading to red thrombus formation are platelet adherence and aggregation. Platelets play a very important role during the establishment and progression of a thrombosis in a coronary artery. Therefore, in recent years guidelines have been developed in an effort to strengthen antiplatelet therapy in ACS, but unfortunately the methods to evaluate platelet activity and the strength of platelet inhibition are lacking.

关键词： platelet modified thrombelastography acute coronary syndrome

Peripheral blood RNA biomarkers can predict lesion severity in degenerative cervical myelopathy

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Neural Regeneration Research 2025年第6期20卷 1764-1775页

作者： Zhenzhong Zheng Jialin Chen Jinghong Xu bin Jiang Lei li Yawei li Yuliang Dai bing Wang Department of Spine Surgery The Second Xiangya Hospital of Central South UniversityChangshaHunan ProvinceChina

Degenerative cervical myelopathy is a common cause of spinal cord injury,with longer symptom duration and higher myelopathy severity indicating a worse *** numerous studies have investigated serological biomarkers for acute spinal cord injury,few studies have explored such biomarkers for diagnosing degenerative cervical *** study involved 30 patients with degenerative cervical myelopathy(51.3±7.3 years old,12 women and 18 men),seven healthy controls(25.7±1.7 years old,one woman and six men),and nine patients with cervical spondylotic radiculopathy(51.9±8.6 years old,three women and six men).Analysis of blood samples from the three groups showed clear differences in transcriptomic *** analysis identified 128 differentially expressed genes that were enriched in patients with neurological *** least absolute shrinkage and selection operator analysis,we constructed a five-gene model(TBCD,TPM2,PNKD,EIF4G2,and AP5Z1)to diagnose degenerative cervical myelopathy with an accuracy of 93.5%.One-gene models(TCAP and SDHA)identified mild and severe degenerative cervical myelopathy with accuracies of 83.3%and 76.7%,*** of two immune cell types(memory B cells and memory-activated CD4^(+)T cells)predicted levels of lesions in degenerative cervical myelopathy with 80%*** results suggest that peripheral blood RNA biomarkers could be used to predict lesion severity in degenerative cervical myelopathy.

关键词： biomarkers candidate genes degenerative cervical myelopathy gene expression analysis immune cell types neurological disabilities peripheral blood RNA profiles spinal cord injury

Wave effect of gravitational waves intersected with a microlens field Ⅱ:An adaptive hierarchical tree algorithm and population study

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 241-254页

作者： Xikai Shan Guoliang li Xuechun Chen Wen Zhao bin Hu Shude Mao Department of Astronomy Tsinghua University Purple Mountain Observatory Chinese Academy of Sciences Institute for Frontier in Astronomy and Astrophysics Beijing Normal University School of Physics and Astronomy Beijing Normal University School of Astronomy and Space Science University of Science and Technology of China CAS Key Laboratory for Researches in Galaxies and Cosmology Department of Astronomy University of Science and Technology of ChinaChinese Academy of Sciences

The gravitational lensing wave effect generated by a microlensing field embedded in a lens galaxy is an inevitable phenomenon in strong lensed gravitational waves （SLGWs）.This effect presents both challenges and opportunities for the detection and application of ***,investigating this wave effect requires computing a complete diffraction integral over each microlens in the *** is extremely time-consuming due to the large number of microlenses （10～3-10～6）.Therefore,simply adding all the microlenses is ***,the complexity of the time delay surface makes the lens plane resolution a crucial factor in controlling numerical *** this paper,we propose a trapezoid approximation-based adaptive hierarchical tree algorithm to meet the challenges of calculation speed and *** find that this algorithm accelerates the calculation by four orders of magnitude compared to the simple adding method and is one order of magnitude faster than the fixed hierarchical tree algorithm proposed for electromagnetic *** importantly,our algorithm ensures controllable numerical errors,increasing confidence in the *** with our previous work （***.66,239511,2023）,this paper addresses all numerical issues,including integral convergence,precision,and computational time1).Finally,we conducted a population study on the microlensing wave effect of SLGWs using this algorithm and found that the microlensing wave effect cannot be ignored,especially for Type II SLGWs （from saddle position of the time delay surface） due to their intrinsic geometric structures and their typical intersection with a denser microlensing ***,more than 33%（11%） of SLGWs have a mismatch larger than 1%（3%） compared to the unlensed ***,we found that the mismatch between signal pairs in a doubly imaged GW is generally larger than 10-3,and 61%（25%） of signal pairs have a mismatch larger than 1%（3%）.Therefo

关键词： gravitational lensing diffractional integral algorithm gravitational wave