检索结果-南通市图书馆

Preparation and Characterization of Microencapsulated Hexadecane Used for Thermal Energy Storage

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2004年第6期15卷 729-732页

作者： Guang Long zou Zhi Cheng TAN Xiao Zheng lan Li Xian SUN Tao ZHANG Dalian Institute of Chemical Physics Chinese Academy of SciencesDalian116023

Polyurea microcapsules about 2.5 μm in diameter containing phase change material for thermal energy storage application were synthesized and characterized by interfacial polycondensation method with toluene-2,4-diisocyanate and ethylenediamine as monomers in an emulsion system. Hexadecane was used as a phase change material and OP, which is nonionic surfactant, and used as an emulsifier. The chemical structure and thermal behavior of the microcapsules were investigated by FTIR and thermal analysis respectively. The results show encapsulated hexadecane has a good potential as a solar energy storage material.

关键词： Phase change material microcapsule interfacial polycondensation energy storage.

Clinical significance of changes in the Th17/Treg ratio in autoimmune liver disease

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2017年第21期23卷 3832-3838页

作者： Ting-Ting Feng Ting zou Xin Wang Wei-Feng Zhao Ai-lan Qin Department of Infectious Diseases the First Affiliated Hospital of Soochow University

AIM To investigate the levels, ratios, and clinical significance of T helper 17(Th17) cells and regulatory T(Treg) cells in the peripheral blood of patients with autoimmune liver disease(AILD). METHODS F o r t y-t w o A I L D p a t i e n t s w e r e i n c l u d e d i n t h e experimental group(group E), and 11 healthy subjects were recruited as the control group(group C). Flow cytometry was performed to determine the percentages of Th17 and Treg cells in peripheral blood lymphocytes. Furthermore, a range of biochemical indices was measured simultaneously in the blood of group E patients. RESULTS The percentage of Th17 cells and the Th17/Treg ratio were higher in group E than in group C(P lance in the Th17/Treg ratio plays an important role in the pathogenesis and development of *** A high Th17/Treg ratio appears to predict poor shortterm prognosis in patients with AILD in the active stage.

关键词： Autoimmune liver disease Helper T cell 17 Regulatory T cells Short-term prognosis

The electromagnetic and gravitational-wave radiations of X-ray transient CDF-S XT2

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Research in Astronomy and Astrophysics 2021年第2期21卷 180-186页

作者： Hou-Jun Lü Yong Yuan Lin lan Bin-Bin Zhang Jin-Hang zou En-Wei Liang Guangxi Key Laboratory for Relativistic Astrophysics School of Physical Science and TechnologyGuangxi UniversityNanning 530004China School of Astronomy and Space Science Nanjing UniversityNanjing 210093China Key Laboratory of Modern Astronomy and Astrophysics(Nanjing University) Ministry of EducationNanjing 210093China Space Science and Technology Hebei Normal UniversityShijiazhuang 050000China

Binary neutron star(NS)mergers may result in remnants of supra-massive or even stable NS,which have been supported indirectly by observed X-ray plateau of some gamma-ray burst(GRB)***,Xue et al.(2019)discovered an X-ray transient CDF-S XT2 that is powered by a magnetar from merger of double NS via X-ray plateau and following stepper ***,the decay slope after the plateau emission is slightly larger than the theoretical value of spin-down in electromagnetic(EM)dominated by losing its rotation *** this paper,we assume that the feature of X-ray emission is caused by a supra-massive magnetar central engine for surviving thousands of seconds to collapse into a black *** this scenario,we present the comparisons of the X-ray plateau luminosity,break time,and the parameters of magnetar between CDF-S XT2 and other short GRBs with internal plateau *** adopting the collapse time to constrain the equation of state(EOS),we find that three EOSs(GM1,DD2,and DDME2)are consistent with the observational *** the other hand,if the most released rotation energy of magnetar is dominated by GW radiation,we also constrain the upper limit of ellipticity of NS for given EOS,and its range is[0.32-1.3]×10^(-3).Its GW signal cannot be detected by Advanced LIGO or even for more sensitive Einstein Telescope in the future.

关键词： stars magnetars

Jug-PLGA-NPs, a New Form of Juglone with Enhanced Efficiency and Reduced Toxicity on Melanoma

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Integrative Medicine 2022年第10期28卷 909-917页

作者： YUE Wu-heng QIN lan-qun CAI Juan MEI Rui QIAN Han-qing zou Zheng-yun The Comprehensive Cancer Centre of Nanjing Drum Tower Hospital Clinical College of Traditional Chinese and Western MedicineNanjing University of Chinese MedicineNanjing(210008)China Department of Oncology Taicang TCM Hospital Affiliated to Nanjing University of Chinese MedicineSuzhouJiangsu Province(215499)China The Comprehensive Cancer Centre of Nanjing Drum Tower Hospital Clinical College of Nanjing Medical UniversityNanjing(210008)China The Comprehensive Cancer Centre of Nanjing Drum Tower Hospital Medical School of Nanjing University&Clinical Cancer Institute of Nanjing UniversityNanjing(210008)China

Objective: To verrify the anti-tumor efficacy and toxicity between juglone(Jug) and Jug-loaded poly lactic-co-glycolic acid(PLGA) nanoparticles(Jug-PLGA-NPs). Methods: Jug-PLGA-NPs were prepared by ultrasonic emulsification. The anti-tumor activity of Jug(2, 3, 4 μg/mL) and Jug-PLGA-NPs(Jug: 2, 3, 4 μg/mL) in vitro was measured by MTT assay and cell apoptosis analysis. The distribution, anti-tumor effect and biological safety in vivo was evaluated on A375 nude mice. Results: With the advantage of good penetration and targeting properties, Jug-PLGA-NPs significantly inhibited proliferation and migration of melanoma cells both in vitro and in vivo(Planoma but is highly toxic. With the advantage of sustained release, tumor targeting, anti-tumor activity and acceptable biological safety, Jug-PLGA-NPs provide a new pharmaceutical form for future application of Jug.

关键词： juglone PLGA nanoparticles malignant melanoma Jug-PLGA-NPs

Full-color quantum dots active matrix display fabricated by ink-jet printing

在线全文

学校读者我要写书评

暂无评论

Science China Chemistry 2017年第10期60卷 1349-1355页

作者： Congbiao Jiang lan Mu Jianhua zou Zhiwei He Zhenji Zhong Lei Wang Miao Xu Jian Wang Junbiao Peng Yong Cao State Key Laboratory of Luminescent Materials and Devices Institute of Polymer Optoelectronic Materials and Devices South China University of Technology Guangzhou 510640 China Guangzhou New Vision Opto-Eleetronic Technology Co. Ltd. Guangzhou 510730 China

Making full-color active matrix display based on quantum dot light emitting diodes(AM-QLEDs) via ink-jet printing is attractive in display industry due to QLEDs' wide color gamut and their potential manufacturing advantages of large screen size and low cost. The challenges for realizing AM-QLED display are how to achieve high quality films through ink-jet printing, multi-color patterning, electroluminescence(EL) color purity, and high efficiency. Herein, a 2-inch diagonal full-color AM-QLEDs display with pixel density of 120 pixels per inch(PPI) fabricated by ink-jet printing technique is presented. Driven by a metal oxide TFT(MOTFT) back-panel, the display exhibits a maximum brightness of 400 cd m.2, and a color gamut of 109%(NTSC 1931). The red, green, and blue(RGB) monochrome QLEDs passive matrix panels fabricated by ink-jet printing technique have a current efficiency(CE) of 2.5, 13.9, and 0.30 cd A.1, respectively. To the best of our knowledge, the efficiencies are the highest among passive matrix QLEDs panels made by ink-jet printing technique. The ink-jet printed QDs films show good thickness uniformity due to high viscosity and low volatility of the printable inks, and no cross-contamination between adjacent pixels resulting from the hydrophobic pixel defining layer.

关键词： full-color display quantum dot light emitting diodes ink-jet printing technology pixel defining layer

Graded composition and doping p-i-n Al_(x)Ga_(1−x)As/GaAs detector for unbiased voltage operation

在线全文

学校读者我要写书评

暂无评论

Nuclear Science and Techniques 2022年第7期33卷 73-82页

作者： Zhi-Fu Zhu Ji-Jun zou Zhi-Jia Sun He Huang Qing-Lei xiu Zhong-Ming Zhang Yong Gan Chen-Xian Guo Shao-Tang Wang xiu-Ping Yue Guo-Li Kong School of Information Engineering Zhengzhou University of TechnologyZhengzhou450044China Engineering Research Center of Nuclear Technology Application(East China University of Technology) Ministry of EducationNanchang330013China State Key Laboratory of Particle Detection and Electronics Institute of High Energy PhysicsChinese Academy of SciencesBeijing100049China Engineering Department LA14YWLancaster UniversityLancasterUK

p-i-n Al_(x)Ga_(1−x)As/GaAs detectors with graded compositions and graded doping were grown and *** the current-voltage and capacitance-voltage measurement results,the devices had good p-n junction diode characteristics,and the electric field strength under an unbiased voltage was 1.7×10^(5) Vcm^(-1).The full width at half maximum and charge collection efficiency of the detectors obtained from energy spectrum measurements of 5.48-MeV alpha particles were 3.04 and approximately 93%,*** this study,we created the most advanced and promising state-of-the-art unbiased detector reported to date.

关键词： Graded composition Graded doping Detector p-i-n Al_(x)Ga_(1−x)As/GaAs

Synthesis,phase transformation and applications of CeCO_(3)OH:A review

在线全文

学校读者我要写书评

暂无评论

Journal of Rare Earths 2024年第8期42卷 1403-1420,I0001页

作者： Zhou zou Weihao Tian Xisong Mao Junqi Li Yuanpei lan Chaoyi Chen Hong Yong Sohn Junshan Zhang Fengyuan Liu Department of Metallurgical Engineering College of Materials and MetallurgyGuizhou UniversityGuiyang55025China Guizhou Province Key Laboratory of Metallurgical Engineering and Process Energy Saving Guiyang550025China Guizhou Provincial University Key Laboratory of High-Performance Battery Materials Guiyang550025China Department of Materials Science and Engineering University of UtahSalt Lake CityUT84112USA

CeCO_(3)OH has a unique crystal structure and excellent optical,electronic and catalytic properties,which has been widely investigated for many ***,ceria obtained from CeCO_(3)OH has a morphology that is similar to that of the precursor,and the CeO_(2)-based products obtained from CeCO_(3)OH exhibit outstanding properties,such as catalytic performances,owing to their designed morphology and oxygen vacancies(OVs).To introduce CeCO_(3)OH into a wider range of potential researchers,we first systematically review the physico-chemical properties,synthesis,reaction and morphology tuning mechanism of CeCO_(3)OH,and summarize the conversion behavior from CeCO_(3)OH to ***,we thoroughly survey the applications of CeCO_(3)OH and its conversion *** for further investigations of CeCO_(3)OH are also made in this *** is hoped that the exhaustive co mpilation of the valuable properties and considerable potential investigations of CeCO_(3)OH will promote further applications of CeCO_(3)OH and CeO_(2)-based functional materials.

关键词： CeCO_(3)OH Morphology tuning CeO_(2) Catalyst lanthanide compounds Rare earths

On the role of Zn and Fe doping in nitrogen-carbon electrocatalysts for oxygen reduction

在线全文

学校读者我要写书评

暂无评论

Nano Research 2024年第11期17卷 9564-9572页

作者： Yanan zou Yuanyuan Su Yongchao Yu Jinliang Luo Xiaomin Kang Jun Zhang Linghan lan Tianshi Wang Jun Li College of Mechanical Engineering University of South China Hengyang 421001 China Key Laboratory of Low-grade Energy Utilization Technologies and Systems Chongqing University Ministry of Education of China Chongqing 400044 China College of New Energy Zhengzhou University of Light Industry Zhengzhou 450002 China School of Mechanical and Electrical Engineering Guilin University of Electronic Technology Guilin 541004 China

Zn is a frequently used and sometimes even an inevitably involved element (when zeolitic imidazolate framework-8 (ZIF-8) is adopted as the precursor) for preparing high-performance Fe-N-C oxygen reduction reaction (ORR) catalysts. However, how the Zn element affects the physicochemical architecture of the catalysts, how it enhances the catalytic activity and whether Zn atoms serve as the active centers remain unclear. Herein, we proposed a novel route that adopted pyrrole as the precursor and flexibly controlled the addition of exogenous Zn and Fe dopants before pyrrole polymerization. In this way, a series of nitrogen-carbon catalysts with or without Zn or Fe doping were synthesized. The detailed characterization revealed the role of Zn and Fe doping in the catalyst morphology, pore structure, active site configurations, ORR catalytic activity and fuel cell performance. Importantly, the findings revealed that Zn doping has little effect on the ORR mechanism and pathway. It enhances ORR activity primarily by increasing the number of active sites via introducing more micro- and meso-pores, rather than by creating new active sites. While Fe doping participated in forming both pores and active site centers. Moreover, the catalyst that co-doped with Zn and Fe atoms (Zn-FeNC), synthesized via this simple and template-free route we proposed, presented a unique hollow and hierarchical pore structure with highly boosted ORR activity. It exhibited a 40 mV higher E 1/2 value than Pt/C in alkaline media, along with a rapid current response in air-cathode of the direct formate fuel cell. These results are valuable in guiding the synthesis of high-performance Fe-N-C catalysts.

关键词： oxygen reduction reaction Fe-N-C catalysts hollow porous nanocarbon Zn doping direct formate fuel cell

Near‑Instantaneously Self‑Healing Coating toward Stable and Durable Electromagnetic Interference Shielding

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano-Micro Letters 2021年第11期13卷 452-467页

作者： Lihua zou Chuntao lan Songlin Zhang Xianhong Zheng Zhenzhen Xu Changlong Li Li Yang Fangtao Ruan Swee Ching Tan Anhui Province International Cooperation Research Center of Textile Structure Composite Materials Anhui Polytechnic UniversityAnhui 241000WuhuPeople’s Republic of China Department of Materials Science and Engineering National University of Singapore9 Engineering Drive 1Singapore 117575Singapore Key Laboratory of Eco‑Textiles Ministry of EducationJiangnan UniversityWuxi 214122JiangsuPeople’s Republic of China Department of Mechanical Engineering University of DelawareNewarkDE 19716USA

Durable electromagnetic interference(EMI)shielding is highly desired,as electromagnetic pollution is a great concern for electronics’stable performance and human *** a superhydrophobic surface can extend the service lifespan of EMI shielding materials,degradation of its protection capability and insufficient self-healing are troublesome issues due to unavoidable physical/chemical damages under long-term application ***,we report,for the first time,an instantaneously self-healing approach via microwave heating to achieve durable shielding ***,a hydrophobic 1H,1H,2H,2H-perfluorooctyltriethoxysilane(POTS)layer was coated on a polypyrrole(PPy)-modified fabric(PPy@POTS),enabling protection against the invasion of water,salt solution,and corrosive acidic and basic ***,after being damaged,the POTS layer can,for the first time,be instantaneously self-healed via microwave heating for a very short time,i.e.,4 s,benefiting from the intense thermal energy generated by PPy under electromagnetic wave *** self-healing ability is also repeatable even after intentionally severe plasma etching,which highlights the great potential to achieve robust and durable EMI shielding ***,this approach can be extended to other EMI shielding materials where heat is a triggering stimulus for healing thin protection *** envision that this work could provide insights into fabricating EMI shielding materials with durable performance for portable and wearable devices,as well as for human health care.

关键词： Electromagnetic interference shielding Superhydrophobic coating Multifunctional textiles Self-healing Conductive polymer