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Practical and concise synthesis of 2-oxo-3,4,5,6-tetraethoxyazepane from D-glucono-1,5-lactone

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Chinese Chemical Letters 2008年第7期19卷 795-796页

作者： Yan Jiao Zhi Jie Fang Yu Hua Jiang bao hui zheng Jie Cheng School of Chemical Engineering Nanjing University of Science ＆ Technology Nanjing 210094 China

2-Oxo-3R,4S,5S,6S-tetraethoxyazepane was conveniently synthesized from D-glucono-1, 5-1actone with a yield of 10% overall. The key step of synthetic route-reductive 1,6-cyclization was completed efficiently by using P... 详细信息

关键词： Azepane Ph3P Reduction Iminosugars Glucono lactone

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

外贴碳纤维布加固钢筋混凝土空心板现场对比性试验研究

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桥梁建设 2005年第B06期35卷 148-150页

作者：刘辉聂品荔鲍政慧张弘中铁大桥局集团桥科院有限公司湖北武汉430034 湖北黄黄高速公路经营有限公司湖北蕲春435316

为深入研究碳纤维布加固钢筋混凝土梁的效果,结合湖北省某高速公路某既有桥梁加固工程,在其空心板底面粘贴2层碳纤维布进行了加固前后的对比试验。结果表明,粘贴碳纤维布可显著降低空心板应力,增加抗弯刚度,有效抑制混凝土开裂。

关键词：碳纤维布空心板梁桥梁加固测试

超声引导下深部淋巴结活检对恶性淋巴瘤诊断的临床分析

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肿瘤 2006年第5期26卷 484-485页

作者：程颖鲍慧铮丛琦张均吉林省肿瘤医院化疗科长春130012

目的:探讨超声引导下深部淋巴结活检穿刺小标本对恶性淋巴瘤诊断的临床价值。方法:采用超声引导下淋巴结穿刺活检,经石蜡包埋,HE染色及免疫组化标记的方法进行病理诊断与以往手术切除活检的标本进行比较。结果:31例住院治疗的深部淋巴... 详细信息

目的:探讨超声引导下深部淋巴结活检穿刺小标本对恶性淋巴瘤诊断的临床价值。方法:采用超声引导下淋巴结穿刺活检,经石蜡包埋,HE染色及免疫组化标记的方法进行病理诊断与以往手术切除活检的标本进行比较。结果:31例住院治疗的深部淋巴结肿大患者,超声引导下穿刺标本,并对不同部位、类型的恶性淋巴瘤进行病理诊断及亚型分型,与以往手术切除淋巴结活检相比具有阳性率相同,创伤小,价格低廉,简便易行的特点。结论:超声定位下的淋巴结穿刺活检可以代替淋巴结切除活检,对于仅有深部淋巴结肿大的患者可作为诊断恶性淋巴瘤的方法。

关键词：淋巴瘤标志淋巴结活检超声检查诊断

EDOP方案治疗复发难治性恶性淋巴瘤45例分析

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吉林医学 2006年第1期27卷 47-48页

作者：鲍慧铮程颖吉林省肿瘤医院吉林长春130012

目的:观察EDOP方案治疗复发难治性恶性淋巴瘤的疗效和毒副作用。方法:对45例复发难治性恶性淋巴瘤患者采用EDOP联合化疗方案进行治疗。结果:EDOP联合化疗方案有效率为(CR+PR)71.1%,完全缓解率(CR)为33.3%,部分缓解(PR)37.8%。主要不良... 详细信息

目的:观察EDOP方案治疗复发难治性恶性淋巴瘤的疗效和毒副作用。方法:对45例复发难治性恶性淋巴瘤患者采用EDOP联合化疗方案进行治疗。结果:EDOP联合化疗方案有效率为(CR+PR)71.1%,完全缓解率(CR)为33.3%,部分缓解(PR)37.8%。主要不良反应为骨髓抑制和胃肠道反应。结论:EDOP方案治疗难治性或复发性恶性淋巴瘤有效率高,毒副反应低,值得进一步研究和推广。

关键词： EDOP方案恶性淋巴瘤复发

PET指导预后良好的早期霍奇金淋巴瘤的治疗——HD16研究的最终结果

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循证医学 2020年第2期20卷 76-79页

作者：鲍慧铮魏小娟吉林省肿瘤医院内五科淋巴血液科长春130012 广东省人民医院肿瘤中心淋巴瘤科、广东省医学科学院广州510080

1文献来源Fuchs M,Goergen H,Kobe C,et al. Positronemission tomography-guided treatment in early-stagefavorable Hodgkin lymphoma:Final results of theinternational,randomized phaseⅢHD16 trial by theGerman Hodgkin Study ... 详细信息

关键词：早期霍奇金淋巴瘤 PET HD16

Multi boron-doping effects in hard carbon toward enhanced sodium ion storage

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Journal of Energy Chemistry 2025年第1期100卷 730-738页

作者： Peng zheng Wang Zhou Ying Mo Biao zheng Miaomiao Han Qin Zhong Wenwen Yang Peng Gao Lezhi Yang Jilei Liu College of Materials Science and Engineering Hunan Joint International Laboratory of Advanced Materials and Technology for Clean Energy Hunan Province Key Laboratory for Advanced Carbon Materials and Applied Technology Hunan University Greater Bay Area Institute for Innovation Hunan University Changsha Research Institute of Mining & Metallurgy Co. LTD.

Hard carbon （HC） has been considered as promising anode material for sodium-ion batteries （SIBs）.The optimization of hard carbon’s microstructure and solid electrolyte interface （SEI） property are demonstrated effective in enhancing the Na+storage capability,however,a one-step regulation strategy to achieve simultaneous multi-scale structures optimization is highly ***,we have systematically investigated the effects of boron doping on hard carbon’s microstructure and interface chemistry.A variety of structure characterizations show that appropriate amount of boron doping can increase the size of closed pores via rearrangement of carbon layers with improved graphitization degree,which provides more Na+storage ***-situ Fourier transform infrared spectroscopy/electrochemical impedance spectroscopy （FTIR/EIS） and X-ray photoelectron spectroscopy （XPS） analysis demonstrate the presence of more BC3and less B–C–O structures that result in enhanced ion diffusion kinetics and the formation of inorganic rich and robust SEI,which leads to facilitated charge transfer and excellent rate *** a result,the hard carbon anode with optimized boron doping content exhibits enhanced rate and cycling *** general,this work unravels the critical role of boron doping in optimizing the pore structure,interface chemistry and diffusion kinetics of hard carbon,which enables rational design of sodium-ion battery anode with enhanced Na+storage performance.

关键词： X ray photoelectron spectroscopy

Optimizing the key parameter to accelerate the recovery of AMOC under a rapid increase of greenhouse gas forcing

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Atmospheric and Oceanic Science Letters 2025年第1期18卷 39-45页

作者： Haolan Ren Fei zheng Tingwei Cao Qiang Wang International Center for Climate and Environment Science(ICCES) Institute of Atmospheric PhysicsChinese Academy of SciencesBeijingChina University of Chinese Academy of Sciences BeijingChina College of Oceanography Hohai UniversityNanjingChina CAS Key Laboratory of Ocean Circulation and Waves Institute of OceanologyChinese Academy of Sciences and Pilot National Laboratory for Marine Science and Technology(Qingdao)QingdaoChina

Atlantic Meridional Overturning Circulation(AMOC)plays a central role in long-term climate variations through its heat and freshwater transports,which can collapse under a rapid increase of greenhouse gas forcing in climate *** studies have suggested that the deviation of model parameters is one of the major factors in inducing inaccurate AMOC *** this work,with a low-resolution earth system model,the authors try to explore whether a reasonable adjustment of the key model parameter can help to re-establish the AMOC after its *** a new optimization strategy,the extra freshwater flux(FWF)parameter is determined to be the dominant one affecting the AMOC’s *** traditional ensemble optimal interpolation(EnOI)data assimilation and new machine learning methods are adopted to optimize the FWF parameter in an abrupt 4×CO_(2) forcing experiment to improve the adaptability of model parameters and accelerate the recovery of *** results show that,under an abrupt 4×CO_(2) forcing in millennial simulations,the AMOC will first collapse and then re-establish by the default FWF parameter ***,during the parameter adjustment process,the saltier and colder sea water over the North Atlantic region are the dominant factors in usefully improving the adaptability of the FWF parameter and accelerating the recovery of AMOC,according to their physical relationship with FWF on the interdecadal timescale.

关键词： Recovery of AMOC 4×CO_(2)forcing Key parameter Parameter estimation Data assimilation Machine learning

Luminescence: a new perspective for investigating perovskite precursors

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Science China Materials 2025年第01期 312-313页

作者： Haofeng zheng Shaocong Hou School of Electrical Engineering and Automation Wuhan University Wuhan University Shenzhen Research Institute

In the past two decades, perovskite materials have made significant progress in optoelectronic semiconductors, emerging as formidable candidates for the next generation of commercial solar cells, light-emitting diodes (LEDs), and *** the fundamental solution chemistry and photophysics in solution-processed perovskite devices is crucial for comprehending to achieve highly efficient optoelectronic devices.

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