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Influence of SLYWG on malignant tumor ascites

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Influence of SLYWG on malignant tumor ascites

Mainchain conformation ordering self-assembly tailored room temperature phosphorescence emission

两岸三地药理学与临床药理学术会议

作者： yang tian xu feng wu tian-yu (Shenyang Pharmaceutical University, Shenyang 110016, China)

Objective To search the effect of Chinese traditional medicine"Shang Lu yu Wang Gao"(SLY- WG)on the ascites induced by tumor,and its *** The tumor ascites model and diuretic ex- periments were introduced to evaluate the effect of *** characteristics,the tumor cell count- ing,volume of the ascites,protein content in ascites,the characters of ascites,the life duration of Stumor bearing animals as the indexes of evaluation,the diurtic experiments were performed on rats nad rabbits,the osmotic pressure,K,Na,Cl,Caand pH in urine were *** The inhibitions to ascites of SLYWG were displayed in three dosage(30g·kg,15g·kgand 7.5g·kg).Ascites caused by tu- mor was significantly inhibited by the local administration of *** increase of mice ascites was slow down,the content of ALB and the TP in ascites were decreased,the surviving time of mice was extended. SLYWG had remarkable diuresis effect on the rats and rabbits,it could reduce the osmotic pressure of urine,decrease the exclude of Kbut had no effect on the Na,Cl,Caand pH in *** Tu- mor ascites was significantly inhibited by the ventral administration of *** had diuretic effect in rats and rabbits,it reduced the osmotic pressure of urine,decrease the exclude of Kbut had no effect on Na,Cl,Caand pH of urine.

关键词： SLYWG phytolacca acinosa pharbitidis malignant tumor ascites alleviate water retention diuresis

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Science China Chemistry 2025年第1期 329-336页

作者： yuzhu Li yumeng Gao feng tian yu Wang yuan Yao Shaoliang Lin Xiang Ma Binbin xu Shanghai Key Laboratory of Advanced Polymeric Materials Key Laboratory for Ultrafine Materials of Ministry of Education School of Materials Science and Engineering East China University of Science and Technology Shanghai Synchrotron Radiation Facility Shanghai Advanced Research Institute Chinese Academy of Sciences Key Laboratory for Advance Materials and Feringa Noble Prize Scientist Joint Research Centre Frontiers Science for Materiobiology and Dynamic Chemistry School of Chemistry and Molecular Engineering East China University of Science & Technology

Developing organic room-temperature phosphorescence （RTP） materials with a wide range of tunable-emission is significant in expanding the applications of RTP ***,we rationally designed amphiphilic alternating copolymers poly(1,2-bis（4-alkoxyphenyl）ethane-1,2-dione-alt-（ethylene glycol）x)(P（Bz-alt-EGx）) that combined the advantage of alternating benzil and EGxskeleton,and tunable mainchain *** a mainchain conformation ordering assembly （COA） process,P（Bz-alt-EGx） self-assembled into well-defined platelets,and such assemblies emitted blue RTP at ca.425 nm due to the ordered folded-chain conformation and confined *** contrast,traditional self-assembly （TA） of P（Bz-alt-EGx） obtained less ordered aggregates,such as asymmetric worms,vesicles,and rod-like *** resultant less ordered aggregates exhibited yellow-green RTP at ca.550 *** wide-tuning RTP emission in solution （between blue and yellow-green,over125 nm） is realized using the P（Bz-alt-EGx） alternating copolymers under the treatment of different self-assembly *** study uncovers a new strategy to tailor the RTP emission through different self-assembly pathways and holds great promise for the fabrication of advanced optical materials.

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Attitude Tracking Control for Rigid Spacecraft with Arbitrary Convergence Time

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Journal of Systems Science & Complexity 2024年第6期37卷 2579-2594页

作者： xu yu-tian wu Ai-Guo Guangdong Provincial Key Laboratory of Intelligent Morphing Mechanisms and Adaptive Robotics Harbin Institute of Technology(Shenzhen)Shenzhen 518055China Key University Laboratory of Mechanism&Machine Theory and Intelligent Unmanned Systems of Guangdong Harbin Institute of Technology(Shenzhen)Shenzhen 518055China Department of Automation Harbin Institute of Technology(Shenzhen)Shenzhen 518055China HIT wuhu Robot Technology Research Institute Wuhu 241060China

In this paper,attitude tracking control with arbitrary convergence time for rigid spacecraft is ***,a novel time-varying sliding function is proposed to achieve free-will arbitrary time convergence when the system states reside on the sliding *** such a sliding function,an attitude tracking controller is designed to guarantee that the states of the closed-loop system converge to the sliding surface within a predetermined time in the presence of external *** free-will arbitrary time convergences of the closed-loop system and sliding function are illustrated by numerical simulations.

关键词： Attitude tracking free-will arbitrary time stability rigid spacecraft sliding mode control

A Parametric Study on the Effect of Mixing Chamber for Expansion Work Recovery CO_(2) Ejector

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Journal of Thermal Science 2022年第6期31卷 1914-1927页

作者： feng xu ZHANG Zhenying wu yuting tian Dingzhu Key Laboratory of Enhanced Heat Transfer and Energy Conservation Ministry of Education and Key Laboratory of Heat Transfer and Energy ConversionBeijing MunicipalityCollege of Environmental and Energy EngineeringBeijing University of TechnologyBeijing 100124China School of Architecture and Civil Engineering North China University of Science and TechnologyTangshan 063210China

A numerical study of supercritical CO_(2) two-phase flow in the ejector was carried out by computational fluid dynamics(CFD) methods. Through the comparison of simulation results and available experimental data in the literature, the accuracy of the three-dimensional CFD model was verified. A comparison of the effects of four turbulence models on the simulation calculation results was also presented. The distributions of pressure, velocity, two-phase volume fraction, shock wave and exergy flux inside the ejector were analyzed. The effects of the mixing section geometry on the performance of the ejector were obtained. Then, the entrained performance of the ejector was investigated by changing the area ratio between the constant-area mixing chamber and the outlet of the motive nozzle(AR) and the ratio between the length and the diameter of the constant-area mixing chamber(LDR). Finally, the optimum AR and LDR were determined to be 8.3 and 8.1, respectively based on the maximum entrained ratio and the minimum exergy destruction. Through optimizing the mixing chamber geometry, the minimum total exergy destruction and the maximum mass entrainment ratio(MER) of the ejector can attain 0.33 J/(kg·K) and 0.698, respectively.

关键词： CO_(2)ejector mixing chamber CFD AR LDR

Migration pattern of a population of Barn Swallows(Hirundo rustica)breeding in East Asian tropical region

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Avian Research 2024年第3期15卷 299-307页

作者： Li tian yu Liu yang wu Zimei feng Dan Hu Zhengwang Zhang Key Laboratory for Biodiversity Sciences and Ecological Engineering Ministry of EducationCollege of Life SciencesBeijing Normal UniversityBeijing100875China State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental SciencesBeijing100107China Life Science and Technology School Lingnan Normal UniversityZhanjiang524048China

Birds exhibit a high degree of migratory diversity,which is influenced by various ecological factors and life history *** studies on tropical bird migration,of which research is scarce,and comparing it with temperate birds can enhance our understanding of bird migration behaviour and its underlying *** this study,we explored the migration behaviour of a breeding population of the Barn Swallow(Hirundo rustica)in Zhanjiang,southern China,a region located in the northern tropics,using light-level *** 2021 to 2023,we deployed geolocators on 92 breeding swallows and retrieved geolocators successfully from 23 *** swallows all exhibited migratory behaviour,and wintering on various islands in Southeast *** displayed sex differences in their wintering *** males concentrated in Borneo,while females primarily chose Borneo but also dispersed to the Philippines,South China Sea,and Vietnam for *** studied swallow population adopted a seasonal migration pattern of“indirect in autumn,direct in spring”,bypassing the ecological barrier of the South China Sea in autumn and tending to directly cross it in spring ***,the distance and duration of autumn migration was significantly longer than those of the spring *** to temperate Barn Swallows,the Barn Swallow population breeding in Zhanjiang adopts a pattern of“intra-tropical migration”and initiates autumn migration *** formation of their migration pattern may be limited by ecological and physiological factors.

关键词： Asia Chain migration Light-level geolocators Migration Northern tropics

Nonlinear Optical Properties of D-π-A-π-D Type Oligomers with Different Conjugation Length

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Chinese Journal of Chemical Physics 2015年第5期28卷 -页

作者： tian-hao Huang Ying-hui Wang tian-ning xu feng-ying yu Han-zhuang Zhang yu-ran Wang Department of Science Zhijiang College of Zhejiang University of Technology Hangzhou 310024ChinaFemtosecond Laboratory College of Physics Jilin University Changchun 130012 China Femtosecond Laboratory College of Physics Jilin University Changchun 130012 China Department of Science Zhijiang College of Zhejiang University of Technology Hangzhou 310024China North China University of Science and Technology Tangshan 063000 China

The conjugation length-dependent nonlinear optical properties of fluorenone-based linear conjugated oligomers have been investigated by experimental and theoretical methods. Infrared spectra and the steady-state absorption spectra show that the increase of conjugated unit could enhance the stretching vibration peaks of C=C and lead to a red-shift of the absorption peaks. Meanwhile, the two-photon fluorescence (TPF) intensity is gradually enhanced with the increase of excitation energy, and the TPF efficiency is obviously higher after the introduction of fluorene-ethylene units. The sum-over-states approach was used to model the two-photon absorption (TPA) cross-sections of oligomers, and the theoretical values agree well with the experimental data obtained from the femtosecond open-aperture z-scan technique. The results exhibit that the extension of conjugated system indeed plays a role in the improvement of TPA behavior of oligomers.

关键词： Linear conjugated oligomer Two-photo absorption Sum-over-states

Mechanical Properties and Microstructure of Al_(2)O_(3)/SiC Composite Ceramics for Solar Heat Absorber

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Journal of wuhan University of Technology(Materials Science) 2021年第5期36卷 615-623页

作者： wu Jianfeng ZHOU yang SUN Mengke xu Xiaohong tian Kezhong yu Jiaqi State Key Laboratory of Silicate Materials for Architectures Wuhan University of TechnologyWuhan 430070China

Al_(2)O_(3)/SiC composite ceramics were prepared fromα-Al_(2)O_(3) and SiC by a pressureless sinter method in this *** effect of SiC contents on the mechanic properties,phase compositions and microstructure is *** results show that the vickers hardness,wear resistance and thermal conductivity of the samples increase with the increase in the SiC content,and the hardness of the sample reaches 16.22 GPa,and thermal conductivity of the sample reaches 25.41 W/(m.K)at room temperature when the SiC content is 20 wt%(B5)and the sintering temperature is at 1640℃.Higher hardness means higher scour resistance,and it indicates that the B5 material is expected to be used for the solar heat absorber of third generation solar thermal *** results indicate the mechanism of improving mechanical properties of Al_(2)O_(3)/SiC composite ceramics:SiC plays a role in grain refinement that the grain of SiC inhibits the grain growth of Al_(2)O_(3),while the addition of SiC changes the fracture mode from the intergranular to the intergranular-transgranular.

关键词： Al_(2)O_(3)/SiC composite ceramics hardness thermal conductivity solar heat absorption material

Chro-austempering treatment of a medium-carbon high-strength bainitic steel

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Journal of Iron and Steel Research International 2023年第2期30卷 317-327页

作者： Man Liu Jun-yu tian feng Cai Cheng-gang Pan Guang xu The State Key Laboratory of Refractories and Metallurgy The Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of EducationThe Collaborative Innovation Center for Advanced Steels of Ministry of EducationWuhan University of Science and TechnologyWuhan430081HubeiChina Hubei Provincial Key Laboratory for New Processes of Ironmaking and Steelmaking Wuhan University of Science and TechnologyWuhan430081HubeiChina

The integrated processing of chromizing and austempering(termed chro-austempering)treatments was *** microstructure and properties of a medium-carbon high-strength bainitic steel treated by chro-austempering treatments were investigated by metallography,scanning vibrating electrode technique,electrochemical workstation,and microhardness *** results show that the high-strength bainitic steel with carbide-free bainite as matrix and the chromized layers on surfaces was successfully fabricated by chro-austempering *** hardness of surface layers was about 3.5 times that of the bainite ***,the corrosion started from exposed bainitic matrix and proceeded along the depth direction,testifying that the surface corrosion resistance was significantly improved by chro-austempering treatment due to the formation of Cr_(7)C_(3)and(Cr,Fe)7_(7)C_(3)on the surface.

关键词： Chro-austempering Chromizing Austempering Bainitic transformation Corrosion resistance Hardness High-strength bainitic steel

Process and kinetics of the selective extraction of cobalt from high-silicon low-grade cobalt ores using ammonia leaching

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International Journal of Minerals,Metallurgy and Materials 2022年第2期29卷 218-227页

作者： Lei tian Ao Gong xuangao wu Xiaoqiang yu Zhifeng xu Lijie Chen Institute of Green Metallurgy and Process Intensification Jiangxi University of Science and TechnologyGanzhou 341000China

An ammonia-based system was used to selectively leach cobalt(Co)from an African high-silicon low-grade Co ore,and the other elemental impurities were inhibited from leaching in this *** process was simple and environmentally *** results revealed that the leaching ratio of Co can reach up to 95.61%using(NH_(4))_(2)SO_(4)as a leaching agent under the following materials and conditions:(NH_(4))_(2)SO_(4)concentration 300 g/L,reductant dosage 0.7 g,leaching temperature 353 K,reaction time 4 h,and liquid-solid ratio 6 mL/*** leaching kinetics of Co showed that the apparent activation energy of Co leaching was 76.07 kJ/mol(i.e.,in the range of 40-300 kJ/mol).This indicated that the leaching of Co from the Co ore was controlled by an interfacial chemical reaction,and then the developed leaching kinetics model of the Co can be expressed as 1-(1-α)^(1/3)=28.01×10~3×r_0^(-1)×C_((NH_(4))_(2)SO_(4))^(1.5)×exp(-76073/8.314 T)×t,whereαis the leaching ratio(%)of Co,r_0 is the average radius(m)of the Co ore particles,T is the temperature(K),and C_((NH_(4))_(2)SO_(4))is the initial reactant concentration(kg/m^(3)).

关键词： ammonia leaching leaching kinetics selective extraction cobalt