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Preparation of B_(2)O_(3)/SBA-15 and Application as Matrix Component in Nickel-Tolerant Fluid Catalytic Cracking Catalyst

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China Petroleum Processing & Petrochemical Technology 2023年第1期25卷 144-150页

作者： Yuan Chengyuan Ju Guannan Chen Qiang Yan Tao li zhongfu School of Materials Science and Engineering Shandong University of TechnologyZiboShandong 255000China Shanxi Tengmao Technology Co. Ltd.HejinShanxi 043300China

Fluid catalytic cracking(FCC)is still a key process in the modern refining industry,in which nickel contamination of the FCC catalyst can significantly increase the dry gas and coke yields and thus seriously affect the stability of the FCC ***,in this work,B_(2)O_(3)-modified SBA-15 molecular sieves(B_(2)O_(3)/SBA-15)with different B_(2)O_(3) contents were prepared,characterized,and further used as matrix component in the preparation of Ni-tolerant FCC *** characterization results indicated that the B_(2)O_(3)/SBA-15 samples possessed excellent Ni passivation ability and kept the characteristic structure of the parent SBA-15 such as highly ordered mesopores,large surface area,and high pore volume,which enabled the B_(2)O_(3)/SBA-15 sample to greatly improve the Ni tolerance of the prepared FCC *** heavy oil catalytic cracking tests indicated that,under the same Ni contamination conditions,the dry gas,coke,and heavy oil yields of the FCC catalyst containing B_(2)O_(3)/SBA-15 decreased by 0.92%,1.65%,and 1.26%,respectively,compared with those of conventional FCC catalyst,while the total liquid yield increased by 3.83%.

关键词： Ni tolerance B_(2)O_(3)modification SBA-15 FCC catalyst

One-pot synthesis of array-like sulfur-doped carbon nitride with covalently crosslinked ultrathin MoS cocatalyst for drastically enhanced photocatalytic hydrogen evolution

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Journal of Materials Science & Technology 2021年第16期75卷 59-67页

作者： Shumin Zhang Hu Dong Changsheng An zhongfu li Difa Xu Kaiqiang Xu Zhaohui Wu Jie Shen Xiaohua Chen Shiying Zhang College of Materials Science and Engineering Hunan UniversityChangsha410082China Hunan Key Laboratory of Applied Environmental Photocatalysis Changsha UniversityChangsha 410005Hunan ProvinceChina School of Physics and Electronics Hunan Normal University410081China

Constructing noble-metal-free loaded catalyst with high-efficiency photocatalytic activity by a simple and scalable method is of profound significance for fundamental research and practical ***,a simple one-pot method was used to synthesize novel samples of array-like sulfur-doped graphitic carbon nitride(SCN)nanosheets with ultrathin MoS2 loading(MS/SCN-x%).The ultrathin MoS2 cocatalyst was evenly distributed on the surface of SCN and was linked to the main catalyst by covalent chemical *** from the multiple advantages of the array-like porous nanosheets structure with rich exposed surface,covalent cross-linking structure,and enhanced visible light absorption,the MS/SCN-2.5%composites drastically improve hydrogen evolution performance,which is superior to original MoS2 nanosheet modified by two-step mixing method,and also rivals with Pt/*** designing strategy of photocatalyst modified by noble-metal-free cocatalyst with covalent bond structure provides fascinating insights into enhanced photocatalytic hydrogen evolution.

关键词： Carbon nitride Noble-metal-free cocatalyst Covalent cross-linking Photocatalytic hydrogen evolution

Research on Strengthen Investment in Rural Infrastructure Construction

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Chinese Business Review 2006年第6期5卷 44-50页

作者： zhongfu li Shuhong Xu Harbin Institute of Technology

Based on clarifying the definition of rural infrastructure, this paper specifically introduces backwardness of rural infrastructure in Enshi City, Hubei Province. Then it summarizes successful experiences of Korean ＂New Village Movement＂. From a new angle, the paper talks about measures to strengthen investment in rural infrastructure construction. It expects an early realization of ＂the development of production, peasants living a rich and comfortable life, civilized custom, clean and tidy villages, and democratic management＂ of the new socialist rural areas.

关键词： infrastructure investment new countryside rural areas

Evaluation of Implementation Preparation for CE based on BEACON Model—Taking Construction Enterprises in Yemen as a Case of Illustration

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Frontiers Research of Architecture and Engineering 2020年第1期3卷 7-16页

作者： Sabrinaji Dahmas zhongfu li Mahmood Ahmad Department of Construction Management Dalian University of TechnologyDalianLiaoning116024China State Key Laboratory of Coastal and Offshore Engineering Dalian University of TechnologyDalianLiaoning116024China Department of Civil Engineering University of Engineering and Technology Peshawar(Bannu Campus)Bannu 28100Pakistan

After decades of civil war,Yemen is in a desperate situation,and the construction industry has been suffering from low productivity and poor *** order to improve the productivity for the Yemeni construction industry,Construction enterprises must adopt the best and new technologies,new management concepts and philosophies such as Total Quality Management(TQM)and concurrent engineering(CE)owing to achieve improvements in the process of product *** ensure the successful implementation of CE in the Yemeni construction industry,it is necessary to assess the readiness of those companies to implement *** this paper,the BEACON model is used to assess the readiness of the Yemeni companies to implement the concept of CE,that assist in overcoming the construction industry's poor productivity and performance.A study assessing CE implementation readiness will help to promote successful CE implementation in the construction industry and enhance the efficiency of construction *** results show that most of the construction companies in the Yemen are not ready to implement *** main reason is that the enterprises rely heavily on traditional management methods,and need to improve the organization and management *** research results can provide theoretical support for construction companies,especially Yemen companies,to establish basis in implementing an appropriate CE approach for improving performance,and also help international construction companies entering the Yemen construction market to cooperate and implement CE.

关键词： Concurrent engineering(CE) Construction industry BEACON model Yemen construction enterprises

Preparation and Characterization of Mg/Al/Fe Hydrotalcite with Superb Absorption Capacity toward Congo Red

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Journal of Wuhan University of Technology(Materials Science) 2019年第4期34卷 866-875页

作者： YANG Kai DU Yi SHEN Jie Key Laboratory of Processing and Testing Technology of Glass & Functional Ceramics of Shandong Province Qilu University of Technology(Shandong Academy of Sciences) Hunan Key Laboratory of Applied Environmental Photocatalysis Changsha University

Mg/Al/Fe layered double hydroxide(MAF-LDH1) was prepared by solvothermal method with the sodium dodecyl sulfate as the template, and the ethanol system was benefit to growth of sample. The nature in the resulting MAF-LDH was investigated by X-ray diffraction, field emission scanning electron microscopy, Fourier transformed infrared spectra, thermogravimetric analysis, and N2 *** morphology of MAF-LDH1 is petal-like with the size of 400-500 nm and the thickness about 10-20 nm. The adsorption performance of the samples was evaluated by absorption of the Congo red(CR) solutions. Compared with Mg/Al layered double hydroxide(MA-LDH), the maximum adsorption capacities of the MAF-LDH1 samples were 943.4 mg/g which was greatly enhanced. Furthermore, after seven cycling tests, the adsorption performance was still up to 90%. Theoretical calculation results revealed that the adsorption process was spontaneous and followed the pseudo-second-order kinetic model and Freundlich model. This work provides a promising alternative strategy to enhance the adsorptive properties of hydrotalcite-like materials.

关键词： adsorption Mg/Al/Fe hydrotalcite Congo red ethanol system

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再论住宅产业化与建筑工业化

建筑经济 2018年第1期39卷 5-10页

作者：李忠富大连理工大学建设管理系辽宁大连116024

全面阐述住宅产业化和建筑工业化的定义和内涵,从内容范围、目标、强调的重点以及其它方面分析二者的区别,明确不同视角下的发展取向,并对建筑工业化的发展提出基本准则。

关键词：住宅产业化建筑工业化内涵区别

中国建筑业全要素生产率的变迁:1996～2005年实证分析

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土木工程学报 2008年第11期41卷 106-111页

作者：李忠富邹心勇李国良哈尔滨工业大学黑龙江哈尔滨150001

采用基于DEA的Malmquist生产率指数对建筑业全要素生产率进行评价,发现1996～2005年建筑业全要素生产率年度平均增长率为0.5%,表明建筑业增长方式正由粗放式向集约式转变;建筑业全要素生产率由技术效率和技术进步共同推进,技术进步的贡... 详细信息

采用基于DEA的Malmquist生产率指数对建筑业全要素生产率进行评价,发现1996～2005年建筑业全要素生产率年度平均增长率为0.5%,表明建筑业增长方式正由粗放式向集约式转变;建筑业全要素生产率由技术效率和技术进步共同推进,技术进步的贡献率稍大一些;技术效率增长率的波动表现出了较强的规律性,总体呈先下降后上升的趋势,尤其是最近几年来显著增强,对其进行了解释;技术进步增长率波动同样表现出了较强的规律性,总体呈先上升后下降的趋势,尤其最近几年来出现倒退,对其产生的原因进行探讨。最后,根据前文的分析,有针对性地提出一些政策建议,希望有助于建筑业全要素生产率的持续健康增长。

关键词：建筑业全要素生产率技术效率技术进步

Comparative study between rivaroxaban and conventional low molecular weight heparin anticoagulant in preventing thrombosis

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International Journal of Technology Management 2013年第9期 131-133页

作者： zhongfu Zhao Xiaoguang li Jin Wang Wei Dong ling Ding Hongbo Yao No.2 Affiliated Hospital of Qiqhar Medical University Heilongjiang 161006 China

After entering 2010, as main varieties patents of the global non-peptide angiotensin II receptor antagonists （ARB） expire, strong growth of anti-hypertensive drug market will tend to slow down. In drugs acting on the cardiovascular and blood system, antithrombotie drugs will become a new attraction on the market. Antithrombotic drugs are primarily formed by the anti-platelet aggregation, coagulation system activation of plasminogen thrombolytic drugs and the like. Antiplatelet drugs have both prevention and treatment effect, are the main category of antithrombotic drugs. According to IMS Health data, in 2008, sale of anti-thrombosis drug in global market is 180 million U.S. dollars, an increase of 16 %, while in 2009 the growth rate is only 7.95%, reaching $ 19.5 billion, growth rate of antithrombotic drugs is 7.13% in the world＇ s major pharmaceutical market.

关键词： rivaroxaban heparin preventing thrombosis

噪声岗位人员累积噪声暴露量与听力损伤的关系

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中华航海医学与高气压医学杂志 2014年第1期21卷 31-33页

作者：李中付海军医学研究所上海200433

目的研究不同噪声强度下的累积噪声暴露量（cumulative noise exposure,CNE）与听力损伤的关系.方法根据ISO 1999提供的数据,采用统计的方法用三维曲面描述听力损伤百分率与CNE的相关性.结果听力损伤不是一元（累积噪声暴露量）函数... 详细信息

目的研究不同噪声强度下的累积噪声暴露量（cumulative noise exposure,CNE）与听力损伤的关系.方法根据ISO 1999提供的数据,采用统计的方法用三维曲面描述听力损伤百分率与CNE的相关性.结果听力损伤不是一元（累积噪声暴露量）函数,而是二元（噪声暴露强度、噪声暴露年限）函数;不同噪声暴露强度下听力损伤出现拐点规律.在不同的噪声暴露强度下,当CNE近似等于噪声暴露强度＋7 dBA时,听力损伤变化均出现拐点;当CNE小于拐点值时,听力损伤随累积暴露量增加变化缓慢;反之,变化急剧加大.结论拐点规律表明,在噪声岗位工作时,一旦发现有听力损伤,可能会加剧,甚至导致听力难以恢复.

关键词：累积噪声暴露量听力损伤噪声容许限值