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Synergistic effects of chloride anions and carboxylated cellulose nanocrystals on the assembly of thick three-dimensional high-performance polypyrrole-based electrodes

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Journal of Energy Chemistry 2022年第7期31卷 492-501,I0013页

作者： Zuxin Sun Samuel Eyley Yongjian Guo Reeta Salminen Wim Thielemans Sustainable Materials Lab Department of Chemical EngineeringKU LeuvenCampus Kulak KortrijkEtienne Sabbelaan 538500 KortrijkBelgium Research Unit Plasma Technology Department of Applied PhysicsGhent UniversitySint-Pietersnieuwstraat 41B49000 GhentBelgium

Porous three-dimensional (3D) structures generally improve the performance of electrodes by increasing their active surface area and the diffusion speed of electrolyte ions during charging/*** polypyrrole (PPy) based films were created by electrodepositing PPy in the presence of varying amounts of chloride anions (Cl^(-)) and polyanionic ribbonlike nanoparticles (carboxylated cellulose nanocrystals (CNC-COO-)) as scaffold *** assembly mechanism of the 3D PPy electrodes combines the effect of different nucleation and growth mechanisms during electropolymerization and deposition of the formed PPy with CNC-COO-and with Cl^(-).The highest area capacitance of these electrode materials was 1.39 F cm^(-2)(150.2 F g^(-1)) at a current density of 1 m A cm^(-2)(0.1 A g^(-1)).More importantly,at a high current density of 20 m A cm^(-2)(2.2 A g^(-1)),the thick (ca.130μm),3D,and high mass loading(9.2 mg cm^(-2)) Cl^(-):CNC-COO-/PPy films exhibited an excellent areal capacitance of 0.85 F cm^(-2)(70.8 F g^(-1)),increasing about 16%over CNC-COO-/PPy films prepared without Cl^(-)present during *** addition,an aqueous Cl^(-):CNC-COO-/PPy (with Cl^(-):CNC-COO-=2.0) symmetric supercapacitor had an outstanding energy density of 41.15μWh cm^(-2)(4.46 Wh kg^(-1)) and excellent cycling stability,while even improving on its original areal capacitance (to 111.2%of its original capacitance) after cycling3000 cycles at 8 m A cm^(-2),indicating their potential in energy storage devices.

关键词： Polypyrrole Cellulose nanocrystals three-dimensional structures One-step electrodeposition Nucleation and growth mechanisms

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The structural characteristics of precipitation in Asian-Pacific's three monsoon regions measured by tropical rainfall measurement mission

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Acta Oceanologica Sinica 2014年第3期33卷 111-117页

作者： LI Jiangnan ZHENG Yanping LI Fangzhou GUO Feiyun LI Weibiao Department of Atmospheric Sciences School of Environmental Science and Engineering Sun Yat-Sen University Meteorological Information Center of Guangdong Province Baiyun District Bureau of Meteorology

The three-dimensional structure of precipitation on a seasonal scale in the Asian-Pacific＇s three monsoon regions is investigated based on the tropical rainfall measurement mission （TRMM） data. The results show that：（1） The maximum seasonal variation of the relative proportional difference of convective precipitation and stratiform rain occurs in the East Asian monsoon region, the second occurs in the Indian monsoon region, and the minimum is in the northwest Pacific monsoon region. In both the northwest Pacific mon soon region and the Indian monsoon region, the convective rain is proportionately larger than stratiform rain in all four seasons. （2） Cloud ice reaches its maximum at around 9 km. Cloud water＇s maximum range is between 3 and 4 km. The large value area of precipitation ice is mainly between 4 and 9 km. The precipi tation water particle is concentrated mostly below 4 km. The largest content is from the ground to 2 km. （3） The most remarkable variance of the content of cloud ice in the Indian monsoon region occurs from spring to winter, and the content of cloud water in the northwest Pacific is always higher than that in the other two regions. （4） The latent heat profile has a similar double-peak structure. The first peak is at 4 km and the second peak is at 2 km. In autumn and winter, the latent heat is higher in the northwest Pacific than in other two regions. In all three regions, the release of the latent heat is higher in summer and autumn than in spring and winter.

关键词： precipitation three-dimensional structures Asian-Pacific monsoon region TRMM

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Structure of the HRV-C 3C-Rupintrivir Complex Provides New Insights for Inhibitor Design

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Virologica Sinica 2020年第4期35卷 445-454页

作者： Shuai Yuan Kaiyue Fan Zhonghao Chen Yao Sun Hai Hou Ling Zhu CAS Key Laboratory of Infection and Immunity CAS Center for Excellence in BiomacromoleculesInstitute of BiophysicsChinese Academy of SciencesBeijing 100101China Key Laboratory for Space Bioscience and Space Biotechnology School of Life SciencesNorthwestern Polytechnical UniversityXi’an 710072China Beijing Forestry University No.35 Tsinghua East RoadHaidian DistrictBeijing 100083China Institute of Medical Research Northwestern Polytechnical UniversityXi’an 710072China Department of Molecular Biophysics and Biochemistry Yale UniversityNew HavenCT 06511USA

Human rhinoviruses(HRVs)are the predominant infectious agents for the common cold *** HRV-C species cause severe illnesses in children and are closely related to acute exacerbations of asthma.3C protease,a highly conserved enzyme,cleaves the viral polyprotein during replication and assists the virus in escaping the host immune *** key roles make 3C protease an important drug target.A few structures of 3Cs complexed with an irreversible inhibitor rupintrivir have been *** structures shed light on the determinants of drug *** we describe the structures of HRV-C153C in free and inhibitor-bound *** volume-decreased S1'subsite and half-closed S2 subsite,which were thought to be unique features of enterovirus A 3C proteases,appear in the HRV-C 3C *** assumes an“intermediate”conformation in the complex,which might open up additional avenues for the design of potent antiviral *** of the features of the three-dimensional structures and the amino acid sequences of 3C proteases suggest new applications for existing drugs.

关键词： Human rhinoviruses(HRVs) 3C protease three-dimensional structures Inhibitors Rupintrivir(AG7088)

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three-dimensional characteristics of mesoscale eddies simulated by a regional model in the northwestern Pacific Ocean during 2000–2008

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Acta Oceanologica Sinica 2022年第10期41卷 74-93页

作者： Guijing Yang Xiayan Lin Guoqing Han Yu Liu Gengxin Chen Jianhui Wang Marine Science and Technology College Zhejiang Ocean UniversityZhoushan316000China State Key Laboratory of Satellite Ocean Environment Dynamics Second Institute of OceanographyMinistry of Natural ResourcesHangzhou310012China Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) Zhuhai519082China State Key Laboratory of Tropical Oceanography South China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou510301China

Mesoscale eddies play vital roles in ocean *** previous studies focused on eddy surface features and individual three-dimensional(3D)eddy cases in the northwestern Pacific Ocean,the analysis of unique eddy3D regional characteristics is still lacking.A 3D eddy detection scheme is applied to 9 years(2000-2008)of eddyresolving Regional Ocean Modeling System(ROMS)output to obtain a 3D eddy dataset from the surface to a depth of 1000 m in the northwestern Pacific Ocean(15°-35°N,120°-145°E).The 3D characteristics of mesoscale eddies are analyzed in two regions,namely,Box1(Subtropical Countercurrent,15°-25°N,120°-145°E)and Box2(Southern Kuroshio Extension,25°-35°N,120°-145°E).In Box1,the current is characterized by strong vertical shear and weak horizontal *** Box2,the current is characterized by the strong Kuroshio,topographic effect,and the westward propagation of Rossby *** results indicate the importance of baroclinic instability in Box1,whereas in Box2,both the barotropic and baroclinic instability are ***,the mesoscale eddies’properties in Box1 and Box2 are *** eddies in Box1 have larger number and radius but a shorter *** contrast,Box2 has fewer eddies,which have smaller radius but longer ***,more eddies are detected at the subsurface than at the surface in both regions;the depth of 650 m is the turning point in *** this depth,the number of cyclonic eddies(CEs)is larger than that of anticyclonic eddies(AEs).In Box2,the number of CEs is dominant *** kinetic energy(EKE)and mean normalized relative vorticity in Box2are significantly higher than those in *** increasing depth,the attenuation trend of EKE and relative vorticity of Box1 become greater than those of ***,the upper ocean(about 300 m in depth)contains 68.6%of the eddies(instantaneous eddy).Only 16.6%of the eddies extend to 1000 *** addition,about87%of the eddies are bowl-shaped eddies in the two reg

关键词： three-dimensional structures mesoscale eddies northwestern Pacific Ocean

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A comparison of summer precipitation structures over the South China Sea and the East China Sea based on tropical rainfall measurement mission

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Acta Oceanologica Sinica 2013年第11期32卷 41-49页

作者： LI Jiangnan YANG Chaofeng LI Fangzhou HE Qihua LI Weibiao School of Environmental Sciences and Engineering Sun Yat-sen University Zhejiang Sub-bureau of East China Regional Air Traffic Management Bureau of CAAC

The three-dimensional structures of summer precipitation over the South China Sea （SCS） and the East China Sea （ECS） are investigated based on tropical rainfall measurement mission （TRMM）. The primary results are as follows. First, both the convective and stratiform precipitation rates in the SCS are much higher than those of the ECS. The contribution of the convective cloud precipitation to the surface precipitation is primarily over the SCS and the ECS with a proportion of about 70%, but the contribution of convective cloud precipitation is slightly larger in the SCS than the ECS. The contribution of stratus precipitation is slightly larger in the ECS than that in the SCS. Second, the content of cloud particles and precipitation particles in the ECS in June was greater than that in the SCS, while in July and August, the content of cloud and precipitation particles in the ECS was less than that in the SCS. Third, the latent heat profile of the ECS is quite different from that of the SCS. In June, the peak values of evaporation and condensation latent heating rates in the ECS are greater than those in the SCS. In July and August, however, the peak values of evaporation and condensation latent heating rates in the ECS are about 0.05°/h less than those in the SCS.

关键词： precipitation three-dimensional structures tropical rainfall measurement mission SouthChina Sea East China Sea

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A model of quality control based on recycling economy and sustainable manufacture

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Ecological Economy 2006年第1期2卷 16-24页

作者： Chert Xiangyu Liang Gongqian Ma Shining School of Management Northwestern Polytechnical University Xi＇an 710072 P. R. China National Key Laboratory for Remanufacturing Beijing 100072 P. R. China

People currentiy pay attention to a hotspot problem that how industrial production is evaluated and controlled based on sustainable development theory. Quality is one of the important indexes. Two mainstream theories guide us to realize the industrial sustainable development： mainly the circular economy and sustainable manufacturing are introduced. The basic characteristics of the sustainable manufacturing are introduced, and that quality management is important contents of sustainable development is indicated. Based on circular economy and sustainable manufacture theories, the drawbacks in the existing quality management models are analyzed. The requests that satisfy the big system ＂environment- society - economy＂ are summarized to build up a model. A Chinese traditional cultural principle is applied and the relevant contents are sublimated as the platform to set up the model. The new quality management concept models are put forward ＂T- D- R＂ three-dimensional structures and ＂ecological quality loop＂ model, from which the new quality concepts are formed The paper elaborates the contents and the process of setting up the models. The big quality problems of the system can be handled by the new quality concept and model that are validated in practice.

关键词： Sustainable development: Quality management Big system three-dimensional structures Model

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Electrically driven, phosphor-free, white light-emitting diodes using gallium nitride-based double concentric truncated pyramid structures

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Light(Science & Applications) 2016年第1期5卷 665-670页

作者： Seung-Hyuk Lim Young-Ho Ko Christophe Rodriguez Su-Hyun Gong Yong-Hoon Cho Department of Physics and KI for the NanoCentury Korea Advanced Institute of Science and Technology291 Daehak-roYuseong-guDaejeon 34141Korea Electronics and Telecommunications Research Institute(ETRI) 218 Gajeong-roYuseong-guDaejeon 34129Korea The Laboratoire Nanotechnologies Nanosystémes(LN2)-CNRS UMI-3463 Institut Interdisciplinaire d’Innovation Technologique(3IT)Universitéde Sherbrooke3000 boulevard UniversitéJ1K 0A5QCCanada

White light-emitting diodes(LEDs)are becoming an alternative general light source,with huge energy savings compared to conventional ***,white LEDs using phosphor(s)suffer from unavoidable Stokes energy converting losses,higher manufacturing cost,and reduced thermal ***,we demonstrate electrically driven,phosphor-free,white LEDs based on three-dimensional gallium nitride structures with double concentric truncated hexagonal *** electroluminescence spectra are stable with varying *** origin of the emission wavelength is studied by cathodoluminescence and high-angle annular dark field scanning transmission electron microscopy *** variation of the carrier injection efficiency is also investigated by a comparative analysis between spatially resolved photoluminescence and electroluminescence.

关键词： indium gallium nitride light-emitting diodes phosphor-free three-dimensional structures white color

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