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| 1 | EMTP-type Program Realization of Krylov Subspace Based Model Reduction Methods for Large-Scale Active Distribution Network显示文摘Effective model reduction methods are required to deal with new challenges in active distribution network simulations that are on a large scale and have complicated structures.In the development of advanced electromagnetic transient simulation programs,automated model reduction plays an important role.This paper proposes an automated realization algorithm for the Krylov subspace based model reduction methods of an active distribution network with which the reduced model can be automatically established according to a given threshold of reduction error.The combined state-space nodal analysis framework is employed to apply the automated model reduction algorithm in popular EMTP-type simulation programs.Simulations are performed using PSCAD and a self-developed program to show the feasibility and validity of the proposed methods. | Chengshan Wang Hao Yu Peng Li Jianzhong Wu Chengdi Ding Guanyu Song Dun Lin Feng Xing | 2015 | CSEE Journal of Power and Energy Systems2015，1，1： | 8 |
| 2 | A direct H2O2 production based on hollow porous carbon sphere-sulfur nanocrystal composites by confinement effect as oxygen reduction electrocatalysts显示文摘Carbon-sulfur composites have draw n in creasing interest in various fields including electrocatalysis because of their unique structures.However,carb on-sulfur composite with tiny sulfur nano crystals has still received little attention.Herein,hollow porous carb on sphere-sulfur composite(HPCS-S)which possesses excellent electrochemical performance towards H2O2 has been prepared for the first time via a simple silica template method.The 2-5 nm sulfur nan ocrystals being restricted in the cha nnel of the hollow porous carb on spheres are un der a strong compressive stress,which was further con firmed by high-resoluti on tran smissi on electr on microscopy(HRTEM)and GPA.The HPCS-S nano crystals show better con ductivity tha n amorphous sulfur clusters because of the reducti on of the steric hindrance which efficie ntly promotes the electron transportation.Consequently,the higher activity and selectivity towards the 2e^oxygen reduction reaction(ORR)to H2O2 in alkaline solution was obtained.The H2O2 selectivity rises from 20%to over 70%after the sulfur addition and the H2O2 production rate achieves 183.99 mmol-gcataiyst-1 with the Faradaic efficiency of 70%.Furthermore,performance enhancement mechanism was also investigated using the den sity functional theory(DFT)calculatio ns.After the in troduci ng of sulfur nano crystals,the appeara nee of S-S bond greatly decreases the overpotential compared with S-doping,which results in significant enhancement of the electrocatalytic property.Consequently,the HPCS-S can be an efficient H2O2 production electrocatalyst in alkaline solution. | Guanyu Chen Jiwei Liu Qingqing Li Pengfei Guan Xuefeng Yu Linshen Xing Jie Zhang Renchao Che | 2019 | Nano Research2019，12，10： | 6 |
| 3 | Hierarchical coupling effect in hollow Ni/NiFe2O4-CNTs microsphere via spray-drying for enhanced oxygen evolution electrocatalysis显示文摘Design and fabrication of cost-effective transition metal and their oxides-based nanocomposites are of paramount significance for metal-air batteries and water-splitting.However,the traditional optimized designs for nanostructure are complicated,low-efficient and underperform for wide-scale applications.Herein,a novel hierarchical framework of hollow Ni/NiFe2O4-CNTs compositemicrosphere forcibly-assembled by zero-dimensional(OD)Ni/NiFo204 nanoparticle(<16 nm)and one-dimensional(1D)self-supporting CNTs was fabricated successfully.Benefitted from the unique nanostructure,such monohybrids can achieve remarkable oxygen evolution reaction(OER)performance in alkaline media with a low overpotential and superior durability,which exceeds most of the commercial catalysts based on IrO/RuO2 or other non-noble metal nanomaterials.The enhanced OER performance of Ni/NiFe2OA-CNTs composite is mainly ascribed to the increased catalytic activity and the optimized conductivity induced by the effects of strong hierarchical coupling and charge transfers between CNTs and Ni/NiFe204 nanoparticles.These effects are greatly boosted by the polarized heterojunction interfaces confirmed by electron holography.The density functional theory(DFT)calculation indicates the epitaxial Ni further enriches the intrinsic electrons contents of NiFe204 and thus accelerates absorption/desorption kinetics of OER intermediates.This work hereby paves a facile route to construct the hollow composite microsphere with excellent OER electrocatalytic activity based on non-noble metal oxide/CNTs. | Xuefeng Yu Guanyu Chen Yizhe Wang Jiwei Liu Ke Pei Yunhao Zhao Wenbin You Lei Wang Jie Zhang Linshen Xing Jingjun Ding Guangzhou Ding Min Wang Renchao Che | 2020 | Nano Research2020，13，2： | 3 |
| 4 | Online illumination estimation of outdoor scenes based on videos containing no shadow area显示文摘Real-time estimation of outdoor illumination is one of the key issues for ensuring the illumination consistency of augmented reality.In this paper,we propose a novel framework to estimate the dynamic illumination of outdoor scenes based on an online video sequence captured by a fixed camera.All existing approaches are based on two assumptions,i.e.there exist some shadow areas in the scene and the distribution of the skylight is uniform over the sky.Both assumptions greatly simplify the problem of illumination estimation of outdoor scenes,but they also limit the applicability as well as the accuracy of these approaches.This paper presents a new approach that breaks these two hard constraints.It recovers the lighting parameters of outdoor scenes containing no shadow area through solving a constrained linear least squares problem.By representing the skylight as a parameterized model incorporating an occlusion coefficient,the proposed approach can handle the dynamic variation of non-uniform skylight distribution.Experimental results demonstrate the potential of our approach. | XING GuanYu ZHOU XueHong LIU YanLi QIN XueYing PENG QunSheng | 2013 | Science China(Information Sciences)2013，56，3： | 3 |
| 5 | The Application of Chaotic Oscillators to Weak Signal Detection 显示文摘 | CHEN Dajun CHEN Xing LIN Jianyan | 1999 | IEEE Transactions on Industrial Electronics1999，46，2： | 1 |
| 6 | The application of chaotic oscillators to weak signal detection显示文摘 | Guanyu Wang Dajun Chen Jianya Lin Xing Chen | 1999 | IEEE Transactions on Industrial Electronics April1999，46，2： | 1 |
| 7 | Highly stable and repeatable femtosecond soliton pulse generation from saturable absorbers based on twodimensional Cu3-xP nanocrystals显示文摘Heavily doped colloidal plasmonic nanocrystals have attracted great attention because of their lower and adjustable free carrier densities and tunable localized surface plasmonic resonance bands in the spectral range from near-infra to mid-infra wavelengths.With its plasmon-enhanced optical nonlinearity,this new family of plasmonic materials shows a huge potential for nonlinear optical applications,such as ultrafast switching,nonlinear sensing,and pulse laser generation.Cu3-xP nanocrystals were previously shown to have a strong saturable absorption at the plasmonic resonance,which enabled high-energy Q-switched fiber lasers with 6.1μs pulse duration.This work demonstrates that both high-quality mode-locked and Q-switched pulses at 1560 nm can be generated by evanescently incorporating two-dimensional(2D)Cu3-xP nanocrystals onto a D-shaped optical fiber as an effective saturable absorber.The 3 dB bandwidth of the mode-locking optical spectrum is as broad as 7.3 nm,and the corresponding pulse duration can reach 423 fs.The repetition rate of the Q-switching pulses is higher than 80 kHz.Moreover,the largest pulse energy is more than 120μJ.Note that laser characteristics are highly stable and repeatable based on the results of over 20 devices.This work may trigger further investigations on heavily doped plasmonic 2D nanocrystals as a next-generation,inexpensive,and solution-processed element for fascinating photonics and optoelectronics applications. | Haoran MU Zeke LIU Xiaozhi BAO Zhichen WAN Guanyu LIU Xiangping LI Huaiyu SHAO Guichuan XING Babar SHABBIR Lei LI Tian SUN Shaojuan LI Wanli MA Qiaoliang BAO | 2020 | Frontiers of Optoelectronics2020，13，2： | 1 |
| 8 | Application of Chaotic Oscillators to Weak Signal Detection 显示文摘 | Wang Guanyu Chen Dajun Lin Jianya Chen Xing | 1999 | Transactions on Industrial Electronics1999，46，2： | 1 |
| 9 | Effect of high pressure torsion process on the microhardness,microstructure and tribological property of Ti6Al4V alloy显示文摘In the present study,a fully lamellar Ti6Al4V alloy was severely deformed by high pressure torsion(HPT)process under a pressure of 7.5 GPa up to 10 revolutions.Experimental results revealed that the microhardness of Ti6Al4V was increased remarkably by about~41%and saturated at about 432 Hv after the HPT process.A relatively uniform bulk nanostructured Ti6Al4V alloy with an average grain size of about52.7 nm was obtained eventually,and no obvious formation of metastableωphase was detected by XRD analysis.For the first time,the tribological properties of the HPT processed Ti6Al4V alloy were investigated by a ball-on-disc test at room temperature under a dry condition.It was found that HPT process had a great influence on the friction and wear behaviors of Ti6Al4V alloy.With increasing the number of HPT revolutions,both friction coefficient and specific wear rate were obviously decreased due to the reduction of abrasion and adhesion wears.After being deformed by 10 HPT revolutions,the friction coefficient was reduced from about 0.49 to 0.37,and the specific wear rate was reduced by about 48%.The observations in this study indicated that HPT processed Ti6Al4V alloys had good potential in structural applications owing to their greatly improved mechanical and tribological properties. | Guanyu Deng Xing Zhao Lihong Su Peitang Wei Liang Zhang Lihua Zhan Yan Chong Hongtao Zhu Nobuhiro Tsuji | 2021 | Journal of Materials Science & Technology2021，，35： | 1 |
| 10 | The application of chaotic oscillators to weak signal detection 显示文摘 | CHEN Dajun CHEN Xing | 1999 | IEEE Trans on Industrial Electronics1999，46，2： | 1 |
| 11 | AHA1 upregulates IDH1 and metabolic activity to promote growth and metastasis and predicts prognosis in osteosarcoma显示文摘Osteosarcoma(OS)is the most common primary malignant bone tumor in children and adolescents.Although activator of HSP90 ATPase activity 1(AHA1)is reported to be a potential oncogene,its role in osteosarcoma progression remains largely unclear.Since metabolism reprogramming is involved in tumorigenesis and cancer metastasis,the relationship between AHA1 and cancer metabolism is unknown.In this study,we found that AHA1 is significantly overexpressed in osteosarcoma and related to the prognosis of osteosarcoma patients.AHA1 promotes the growth and metastasis of osteosarcoma both in vitro and in vivo.Mechanistically,AHA1 upregulates the metabolic activity to meet cellular bioenergetic needs in osteosarcoma.Notably,we identifed that isocitrate dehydrogenase 1(IDH1)is a novel client protein of Hsp90 AHA1.Furthermore,the IDH1 protein level was positively correlated with AHA1 in osteosarcoma.And IDH1 overexpression could partially reverse the effect of AHA1 knockdown on cell growth and migration of osteosarcoma.Moreover,high IDH1 level was also associated with poor prognosis of osteosarcoma patients.This study demonstrates that AHA1 positively regulates IDH1 and metabolic activity to promote osteosarcoma growth and metastasis,which provides novel prognostic biomarkers and promising therapeutic targets for osteosarcoma patients. | Diwei Zheng Weihai Liu Wenlin Xie Guanyu Huang Qiwei Jiang Yang Yang Jiarong Huang Zihao Xing Mengling Yuan Mengning Wei Yao Li Junqiang Yin Jingnan Shen Zhi Shi | 2021 | Signal Transduction and Targeted Therapy2021，6，2： | 1 |
| 12 | The application of chaotic oscillators to weak signal detection显示文摘 | Chen Dajun Lin Jianya Chen Xing | 1999 | Industrial Electronics1999，46，2： | 1 |
| 13 | Aerosol transmission,an indispensable route of COVID-19 spread:case study of a department-store cluster显示文摘Patients with COVID-19 have revealed a massive outbreak around the world,leading to widespread concerns in global scope.Figuring out the transmission route of COVID-19 is necessary to control further spread.We analyzed the data of 43 patients in Baodi Department Store(China)to supplement the transmission route and epidemiological characteristics of COVID-19 in a cluster outbreak.Incubation median was estimated to endure 5.95 days(2-13 days).Almost 76.3%of patients sought medical attention immediately upon illness onset.The median period of illness onset to hospitalization and confirmation were 3.96 days(0-14)and 5.58 days(1-21),respectively.Patients with different cluster case could demonstrate unique epidemiological characteristics due to the particularity of outbreak sites.SRAS-CoV-2 can be released into the surrounding air through patient's respiratory tract activities,and can exist for a long time for long-distance transportation.SRAS-CoV-2 RNA can be detected in aerosol in different sites,including isolation ward,general ward,outdoor,toilet,hallway,and crowded public area.Environmental factors influencing were analyzed and indicated that the SARS-CoV-2 transportation in aerosol was dependent on temperature,air humidity,ventilation rate and inactivating chemicals(ozone)content.As for the infection route of case numbers 2 to 6,10,13,16,17,18,20 and 23,we believe that aerosol transmission played a significant role in analyzing their exposure history and environmental conditions in Baodi Department Store.Aerosol transmission could occur in some cluster cases when the environmental factors are suitable,and it is an indispensable route of COVID-19 spread. | Guanyu Jiang Can Wang Lu Song Xing Wang Yangyang Zhou Chunnan Fei He Liu | 2021 | Frontiers of Environmental Science & Engineering2021，15，3： | 0 |
| 14 | Engineering naphthalimide-cyanine integrated near-infrared dye into ROS-responsive nanohybrids for tumor PDT/PTT/chemotherapy显示文摘Photodynamic(PDT)and photothermal therapies(PTT)are emerging treatments for tumour ablation.Organic dyes such as porphyrin,chlorin,phthalocyanine,boron-dipyrromethene and cyanine are the clinically or preclinically used photosensitizer or photothermal agents.Development of structurally diverse near-infrared dyes with long absorption wavelength is of great significance for PDT and PTT.Herein,we report a novel near-infrared dye ML880 with naphthalimide modified cyanine skeleton.The introduction of naphthalimide moiety results in stronger electron delocalization and larger redshift in emission compared with IR820.Furthermore,ML880 is co-loaded with chemotherapeutic drug into ROS-responsive mesoporous organosilica(RMON)to construct nanomedicine NBD&ML@RMON,which exhibits remarkable tumor inhibition effects through PDT/PTT/chemotherapy in vivo. | Tongxia Jin Di Cheng Guanyu Jiang Wenqian Xing Peiwen Liu Bin Wang Weiping Zhu Haitao Sun Zhenrong Sun Yufang Xu Xuhong Qian | 2022 | Bioactive Materials2022，7，8： | 0 |
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