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Chinese Chemical Letters 2001年第6期12卷 519-522页

作者： Jian Chao YUAN Yu Hua ZHANG shi jie lu State Key Laboratory for Oxo Synthesis and Selective Oxidation Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou 730000

Enantioselective alternating copolymerization of carbon monoxide with propylene was carried out using palladium catalyst modified by 1,4-3,6-dianhydro-2,5-dideoxy-2,5-bis (diphenylphosphino)-L-iditol (DDPPI). The chiral diphosphine was proved to be effective at enantioselective copolymerization. Optical rotation, elemental analysis, H-1, C-13-NMR and IR spectra showed that the copolymer was optically active, isotactic, alternating poly(1,4-ketone) structure.

关键词： Palladium catalyst chiral ligand enantioselective alternating copolymerization isotactic copolymer optical activity

Effects of chronic peripheral pretreatment with an angiotensin II type-1 receptor blocker on apoptosis-related molecules in rats with cerebral ischemia/reperfusion injury

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Neural Regeneration Research 2010年第15期5卷 1150-1155页

作者： Jingping shi Jingde Dong jie lu Yingdong Zhang Department of Neurology Nanjing Brain Hospital Nanjing Medical University Nanjing 210029 Jiangsu Province China

Chronic systemic treatment with blockers of angiotensin II type-1 （AT1） receptors inhibits ischemia-induced apoptosis and reduces ischemic neuronal damage. However, the molecular mechanisms of AT1 receptor blockers in modulating neuronal apoptosis remain poorly understood. Pretreatment with irbesartan significantly suppressed cell apoptosis at 1-7 days following cerebral ischemia/reperfusion, increased levels of brain-derived neurotrophic factor, and elevated the ratios of Bcl-2/Bax and phosphorylated cyclic adenosine monophosphate response element-binding protein （pCREB）/CREB in the ischemic cortex at 1 day after reperfusion, as well as suppressing caspase-3 activation. Cerebral ischemia increased the mRNA expression of AT1 and AT2 receptors in the ischemic cortex, whereas irbesartan blocked this increase in AT1 expression but potentiated the expression of AT2. Therefore, this AT1 receptor blocker was neuroprotective by increasing the ratios of Bcl-2/Bax and pCREB/CREB, increasing brain-derived neurotrophic factor levels, inhibiting caspase-3 activation, and modulating AT receptor expression.

关键词： angiotensin II cerebral ischemia receptor apoptosis brain-derived neurotrophic factor brain injury neural regeneration

Asymmetric Catalytic Hydrogenation Using Rhodium Diphosphinites Derived From D-glucose and D-mannitol

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Chinese Chemical Letters 2000年第7期11卷 587-588页

作者： Peng JIANG shi jie lu(State Key Laboratory of Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000) State Key Laboratory of Oxo Synthesis and Selective Oxidation Lanzhou Institute of Chemical Physics Chinese Academy of Sciences

Three diphosphinites were synthesized for preparing rhodium-diphosphinite complexes. The complexes were used for asymmetric catalytic hydrogenation of amino acid precursor alpha-acetamidocinnamic acid and its methyl e... 详细信息

关键词： asymmetric catalysis hydrogenation rhodium diphosphinites alpha-acetamidocinnic acid

SYNTHESIS OF A NEW CHIRAL PHOSPHINE FROM DSORBITOL

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Chinese Chemical Letters 1996年第4期7卷 299-300页

作者： An Lai WANG Xiao Dong WANG shi jie lu Hong Xiang FU Han Qing WANG(Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences,Lanzhou 730000) Lanzhou Inst. of Chemical Physics Chinese Academy of Sciences Lanzhou 730000

A new chiral phosphine compound: 1,4:3,6-dianhydro-2-O-p-toluene sulfonyl-5-deoxy-5-diphenylphosphino-L-iditol was synthesized using D-sorbitol as starting material, and characterized by elemental analysis, H-1 NMR, P...

关键词：

PALLADIUM－CATALYZED　CARBONYLATION　OF　TERT－BUTYL　ALCOHOL　TO　ESTERS　OF　ISO－VALERIC　ACID

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Chinese Chemical Letters 1996年第3期7卷 221-224页

作者： Hong Ying ZHOU shi jie lu Jing CHEN Hong Xiang FU Han Qing WANG(Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences.Lanzhou 730000) Lanzhou Inst. of Chemical Physics Chinese Academy of Sciences Lanzhou 730000

tert-Butyl alcohol was carbonylated into iso-valeric esters in 37.0-83.6% yield with 42.4-95.0%selectivity using tile Pd(OAc)2-PPh3-P- toluenesulfonic acid catalyst system without any halogenpromoter or other extreme ... 详细信息

关键词： ACID VALERIC BUTYL OF TERT ISO

Quaternion-Based Adaptive Trajectory Tracking Control of a Rotor-Missile with Unknown Parameters Identification

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Defence Technology（防务技术） 2024年第1期31卷 375-386页

作者： jie Zhao Zhongjiao shi Yuchen Wang Wei Wang Beijing Institute of Technology Beijing 100081China

This paper investigates the adaptive trajectory tracking control problem and the unknown parameter identification problem of a class of rotor-missiles with parametric system ***,considering the uncertainty of structural and aerodynamic parameters,the six-degree-of-freedom(6Do F) nonlinear equations describing the position and attitude dynamics of the rotor-missile are established,respectively,in the inertial and body-fixed reference ***,a hierarchical adaptive trajectory tracking controller that can guarantee closed-loop stability is proposed according to the cascade characteristics of the 6Do F ***,a memory-augmented update rule of unknown parameters is proposed by integrating all historical data of the regression *** long as the finitely excited condition is satisfied,the precise identification of unknown parameters can be ***,the validity of the proposed trajectory tracking controller and the parameter identification method is proved through Lyapunov stability theory and numerical simulations.

关键词： Rotor-missile Adaptive control Parameter identification Quaternion control

Single-Crystal Nickel-Based Cathodes:Fundamentals and Recent Advances

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Electrochemical Energy Reviews 2022年第4期5卷 63-103页

作者： shi-jie lu Lin-bo Tang Han-xin Wei Ying-de Huang Cheng Yan Zhen-jiang He Yun-jiao Li Jing Mao Kehua Dai Jun-chao Zheng School of Metallurgy and Environment Central South UniversityChangsha 410083HunanChina National Engineering Laboratory for High Efficiency Recovery of Refractory Nonferrous Metals Central South UniversityChangsha 410083HunanChina Engineering Research Center of the Ministry of Education for Advanced Battery Materials Central South UniversityChangsha 410083HunanChina School of Mechanical Medical and Process EngineeringQueensland University of TechnologyBrisbaneQLD 4001Australia School of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450001HenanChina College of Chemistry Tianjin Normal UniversityTianjin 300387China

Lithium-ion batteries(LIBs)represent the most promising choice for meeting the ever-growing demand of society for various electric applications,such as electric transportation,portable electronics,and grid ***-rich layered oxides have largely replaced LiCoO_(2)in commercial batteries because of their low cost,high energy density,and good *** nickel-based oxide particles,usually called polycrystal materials,are composed of microsized primary ***,polycrystal particles tend to suffer from pulverization and severe side reactions along grain boundaries during *** phenomena accelerate cell ***-crystal materials,which exhibit robust mechanical strength and a high surface area,have great potential to address the challenges that hinder their polycrystal counterparts.A comprehensive understanding of the growing body of research related to single-crystal materials is imperative to improve the performance of cathodes in *** review highlights origins,recent developments,challenges,and opportunities for single-crystal layered oxide *** synthesis science behind single-crystal materials and comparative studies between single-crystal and polycrystal materials are discussed in *** techniques and facilities are also reviewed in combination with our group’s experiences in single-crystal *** development should focus on facile production with strong control of the particle size and distribution,structural defects,and impurities to fully reap the benefits of single-crystal materials.

关键词： Lithium-ion battery Cathode materials Single crystal Nickel-based layered oxides

Supramolecular Biomaterials for Cancer Immunotherapy

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Research 2024年第2期2023卷 491-509页

作者： Huan Liang Qingqing lu jie Yang Guocan Yu College of Science Nanjing Forestry UniversityNanjing 210037P.R.China Key Laboratory of Bioorganic Phosphorus Chemistry&Chemical Biology Department of ChemistryTsinghua UniversityBeijing 100084P.R.China

Cancer immunotherapy has achieved tremendous successful clinical results and obtained historic victories in tumor ***,great limitations associated with feeble immune responses and serious adverse effects still cannot be neglected due to the complicated multifactorial etiology and pathologic microenvironment in *** rapid development of nanomedical science and material science has facilitated the advanced progress of engineering biomaterials to tackle critical *** supramolecular biomaterials with flexible and modular structures have exhibited unparalleled advantages of high cargo-loading efficiency,excellent biocompatibility,and diversiform immunomodulatory activity,thereby providing a powerful weapon for cancer *** past decades,supramolecular biomaterials were extensively explored as versatile delivery platforms for immunotherapeutic agents or designed to interact with the key moleculars in immune system in a precise and controllable *** this review,we focused on the crucial role of supramolecular biomaterials in the modulation of pivotal steps during tumor immunotherapy,including antigen delivery and presentation,T lymphocyte activation,tumor-associated macrophage elimination and repolarization,and myeloid-derived suppressor cell *** on extensive research,we explored the current limitations and development prospects of supramolecular biomaterials in cancer immunotherapy.

关键词： biomaterials limitations thereby

AHFO-based soil water content sensing technology considering soil-sensor thermal contact resistance

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Journal of Rock Mechanics and Geotechnical Engineering 2024年第7期16卷 2715-2731页

作者： Mengya Sun Peng Wu Bin shi Jin Liu jie Liu Juncheng Yao Yipin lu Yunqiang Wang Xiaoyan Li School of Earth Sciences and Engineering Hohai UniversityNanjing210098China School of Earth Sciences and Engineering Nanjing UniversityNanjing210023China Department of Architecture and Civil Engineering City University of Hong Kong999077Hong KongChina State Key Laboratory of Loess and Quaternary Geology Institute of Earth EnvironmentChinese Academy of SciencesXi’an710061China

The actively heated fiber-optic(AHFO)technology has become emerged as a research focus due to its advantages of distributed,real-time measurement and good *** attributes have led to the gradual application of AHFO technology to the water content measurement of in situ ***,all existing in situ applications of AHFO technology fail to consider the effect of soilesensor contact quality on water content measurements,limiting potential for the wider application of AHFO *** address this issue,the authors propose a method for determining the soilesensor thermal contact resistance based on the principle of an infinite cylindrical heat *** is then used to establish an AHFO water content measurement technology that considers the thermal contact *** reliability and validity of the new measurement technology are explored through a laboratory test and a field case study,and the spatial-temporal evolution of the soil water content in the case is *** results demonstrate that method for determining the soilesensor thermal contact resistance is highly effective and applicable to all types of *** method requires only the moisture content,dry density,and thermal response of the in situ soil to be *** the field case,the measurement error of soil water content between the AHFO method,which takes into account the thermal contact resistance,and the neutron scattering method is only *** water content of in situ soil exhibits a seasonal variation,with an increase in spring and autumn and a decrease in summer and ***,the response of shallow soils to precipitation and evaporation is *** findings contribute to the enhancement of the accuracy of the AHFO technology in the measurement of the water content of in situ soils,thereby facilitating the dissemination and utilization of this technology.

关键词： Soil water content Actively heated fiber-optic(AHFO) technology Soilesensor thermal contact resistance Reliability In situ application

Apically guiding electron/mass transfer reaction induced by Ag/FeN_(x)Mott-Schottky effect within a hollow star reactor toward high performance zinc-air batteries

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Journal of Energy Chemistry 2024年第8期95卷 106-116,I0004页

作者： Kaixiang shi Kaixin Wang Tong Li Junhao Li jie Ren Xu Li Yonggang Min Zhouguang lu Wei Tan Quanbing Liu Guangdong Provincial Laboratory of Chemistry and Fine Chemical Engineering jieyang Center(Rongjiang Laboratory) Guangdong University of TechnologyJieyang 515200GuangdongChina Guangzhou Key Laboratory of Clean Transportation Energy Chemistry Guangdong Provincial Key Laboratory of Plant Resources BiorefinerySchool of Chemical Engineering and Light IndustryGuangdong University of TechnologyGuangzhou 510006GuangdongChina Key Laboratory of Electrochemical Energy Storage and Energy Conversion of Hainan Province School of Chemistry and Chemical EngineeringHainan Normal UniversityHaikou 571158HainanChina School of Materials and Energy Guangdong University of TechnologyGuangzhou 510006GuangdongChina Department of Materials Science and Engineering Southern University of Science and TechnologyShenzhen 518055GuangdongChina

The disparity in the transfer of carriers(electrons/mass)during the reaction in zinc-air batteries(ZABs)results in sluggish kinetics of the oxygen reduction reaction(ORR)and oxygen evolution reaction(OER),along with elevated overpotentials,thereby imposing additional constraints on its ***,the pre-design and target-development of inexpensive,high-performance,and long-term stable bifunctional catalysts are urgently *** this work,an apically guiding dual-functional electrocatalyst(Ag-FeN_(x)-N-C)was prepared,in which a hierarchical porous nitrogen-doped carbon with three-dimensional(3D)hollow star-shaped structure is used as a substrate and high-conductivity Ag nanoparticles are coupled with iron nitride(FeN_(x))*** calculations indicate that the Mott-Schottky heterojunction as an inherent electric field comes from the two-phase bound of Ag and FeN_(x),of which electron accumulation in the FeN_(x)phase region and electron depletion in the Ag phase region promote orientated-guiding charge *** effective modulation of local electronic structures felicitously reforms the d-band electron-group distribution,and intellectually tunes the masstransfer reaction energy barriers for both ORR/***,the hollow star-s haped hierarchical porous structure provides an apical region for fast mass *** results show that the halfwave potential for ORR is 0.914 V,and the overpotential for OER is only 327 mV at 10 mA cm^(-2).A rechargeable ZAB with Ag-FeN_(x)-N-C as the air cathode demonstrates long-term cycling performance exceeding 1500 cycles(500 h),with a power density of 180 mW cm^(-2).Moreover,when employing AgFeN_(x)-N-C as the air cathode,flexible ZABs demonstrate a notable open-circuit voltage of 1.42 V and achieve a maximum power density of 65.6 mW cm^(-2).Ag-FeN_(x)-N-C shows guiding electron/mass transfer route and apical reaction microenvironment for the electrocatalyst architecture in the explo

关键词： Hollow star structure Mott-Schottky effect Apically guiding effect Bifunctional catalysis Zinc-air batteries