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| 1 | Coordinated Control for Harmonic Mitigation of Parallel Voltage-source Inverters显示文摘The increasing use of power electronic devices can deteriorate the power quality by introducing voltage and current harmonics.In islanded microgrids,the presence of nonlinear loads can distort the point of common coupling(PCC)voltage,while the dead-time effect can also bring additional circulating current harmonics among parallel inverters.To simultaneously attenuate the PCC voltage harmonics and suppress the dead-time induced circulating current harmonics,this paper proposes a coordinated control strategy for harmonic mitigation of parallel inverters.The proposed control strategy allows inverter impedances to be properly reshaped at selective harmonic frequencies.As a consequence,the PCC voltage harmonics are filtered by the inverter operating in the harmonic compensation mode(HCM),whereas the dead-time induced circulating current harmonics are suppressed by the inverter operating in the harmonic rejection mode(HRM).Experimental results from an islanded microgrid prototype with two parallel inverters are provided to validate the effectiveness of the proposed control strategy. | Yang Qi Jingyang Fang Jiazhe Liu Yi Tang | 2018 | CES Transactions on Electrical Machines and Systems2018，2，3： | 3 |
| 2 | Partially known information attack on SM2 key exchange protocol显示文摘SM2 key exchange protocol is a part of the SM2 public key cryptographic algorithm based on elliptic curves which has been issued by Chinese State Cryptography Administration since 2010. Under the guide of Chinese government, SM2 has been widely used in Chinese commercial applications. This paper gives the first partially known information attack on SM2 key exchange protocol. Our attack is based on a technique modified from the hidden number problem(HNP) which was introduced originally to study the bit security of Diffie-Hellman and related schemes. We present a polynomial-time algorithm which could recover the user's secret key when given about half least significant bits of the two unknown intermediate values in each congruence over about 30 to 40 instances. Compared with the standard HNP, our approach deals with congruence involved two independent unknown variables and each of them possesses the same size as the secret key. Moreover, our results almost coincide with the previous best result among the same field considering the extreme case in which one variant is completely revealed. | Wei WEI Jiazhe CHEN Dan LI Beibei WANG | 2019 | Science China(Information Sciences)2019，62，3： | 1 |
| 3 | Localization of putative stem cells and four cell populations with different differentiation degree in mouse mammary anlagen显示文摘 | Jianyong Han Suying Cao Hong Jin Ying Liu Meili Wang Jiazhe Song Ning Li | 2006 | Histochemistry and Cell Biology2006，，1： | 1 |
| 4 | Characterisation of grass carp (Ctenopharyngodon idellus) MHC class I domain lineages 显示文摘 | YangTY Hao H F JiaZH etal | 2006 | Fish Shellfish Immunol2006，21，5： | 1 |
| 5 | Enhanced lumines- cence of Ca2MgSi207 :Eu2+ fibers by sol-gel assisted electro- spinning显示文摘 | Xu Chuanyan Guo Jiazhe Li Yadong | 2013 | Optical Materials2013，35，5： | 1 |
| 6 | Terbium-doped zinc oxide constructed dual-light-responsive nitric oxide-releasing platform for bacterial keratitis treatment显示文摘Bacterial keratitis(BK)is a principal factor contributing to corneal ulcers and ocular complications,and has become a significant killer of global vision health.Traditional antibiotic therapy has unsatisfactory therapeutic effect due to short residence time and low utilization rate of drug,and the long-term abuse of antibiotics can easily incur the prevalence of drug-resistant bacteria.Furthermore,antibiotics are not effective in addressing the excessive inflammatory response caused by infection.Here,we developed a terbium-doped zinc oxide constructed dual-light-responsive nitric oxide(NO)-releasing nanoparticle(ZT@P@B)and modified it on the surface of contact lenses(CL-ZT@P@B)to boost its bioavailability.In vitro and in vivo experimental results verified that ZT@P@B could simultaneously respond to green light(GL)and 808 nm near-infrared(NIR)without obvious damage to the eyes,releasing reactive oxygen species(ROS)and NO,which could effectively kill bacteria(including drug-resistant strains)and reduce inflammatory response.The platform provides a promising strategy for the prevention and treatment of BK. | Yue Sun Wei Zhang Menghui Wang Huijie Liu Qun Li Jiazhe Luo Mengzhen Zhao Shichen Liu Xiaolei Wang | 2023 | Nano Research2023，16，1： | 0 |
| 7 | Ash removal from inferior coal via ammonium fluoride roasting and simultaneous yield of white carbon black显示文摘The quality upgrading and deashing of inferior coal by chemical method still faces great challenges.The dangers of strong acid,strong alkali,waste water and exhaust gas as well as high cost limit its industrial production.This paper systematically investigates the ash reduction and desilicification of two typical inferior coal utilizing ammonium fluoride roasting method.Under the optimal conditions,for fat coal and gas coal,the deashing rates are 69.02%and 54.13%,and the desilicification rates are 92.64%and 90.27%,respectively.The molar dosage of ammonium fluoride remains consistent for both coals;however,the gas coal,characterized by a lower ash and silica content(less than half that of the fat coal),achieves optimum deashing effect at a reduced time and temperature.The majority of silicon in coal transforms into gaseous ammonium fluorosilicate,subsequently preparing nanoscale amorphous silica with a purity of 99.90%through ammonia precipitation.Most of the fluorine in deashed coal are assigned in inorganic minerals,suggesting the possibility of further fluorine and ash removal via flotation.This research provides a green and facile route to deash inferior coal and produce nano-scale white carbon black simultaneously. | Xuqin Duan Shuaiyu Lu Yuxiao Fu Jiazhe Zhang Tong Liu Jian Ma | 2024 | International Journal of Mining Science and Technology2024，34，2： | 0 |
| 8 | Integration of scRNA and bulk RNA-sequence to construct the 5-gene molecular prognostic model based on the heterogeneity of thyroid carcinoma endothelial cell显示文摘Thyroid cancer(TC)is a kind of cancer with high heterogeneity,which leads to significant difference in prognosis.The prognostic molecular processes are not well understood.Cancer cells and tumor microenvironment(TME)cells jointly determine the heterogeneity.However,quite a little attention was paid to cells in the TME in the past years.In this study,we not only reveal that endothelial cells(ECs)are strongly associated with the progress of papillary thyroid cancer(PTC)using single-cell RNA-seq(scRNA-seq)data downloaded from Gene Expression Omnibus(GEO)and WGCNA,but also screen 5 crucial genes of ECs:CLDN5,ABCG2,NOTCH4,PLAT,and TMEM47.Fur-thermore,the 5-gene molecular prognostic model is constructed,which can predict how well a patient will do on PD-L1 blockade immunotherapy for TC and evaluate prognosis.Quantitative real-time polymerase chain reaction(qRT-PCR)analysis demonstrates that PLAT is decreased in TC and the increase of PLAT can restrain the migratory capacity of TC cells.Meanwhile,in TC cells,PLAT suppresses VEGFa/VEGFR2-mediated human umbilical vascular endothelial cell(HUVEC)proliferation and tube formation.Totally,we construct the 5-gene molecular prognostic model from the perspective of EC and provide a new idea for immunotherapy of TC. | Zhaoxian Ni Shan Cong Hongchang Li Jiazhe Liu Qing Zhang Chuanchao Wei Gaofeng Pan Hui He Weiyan Liu Anwei Mao | 2024 | Acta Biochimica et Biophysica Sinica2024，56，2： | 0 |
| 9 | Expression and localization of vitellogenin genes(VTG)and receptor(VGR)in the gonad development of silver pomfret Pampus argenteus显示文摘Vitellogenesis is the main event of oocyte growth in oviparous animals,which is mainly manifested by the accumulation of vitellogenin(VTG).The accumulation of vitellogenin depends mainly on the absorption of exogenous vitellogenin,which enters oocyte through endocytosis mediated by its receptor(VGR).We investigated the expression and localization of VTG and VGR during gonad development of Pampus argenteus.The qPCR results show that vtgs were not expressed in male fish,but in the ovary and liver of female fish;the expression levels went up at first and then down.The expression levels of vgr in the testis were low and only 1%-3%of that in ovary.ELISA results show that during the ovarian development of P.argenteus,VTG in liver,serum,and ovary all showed a trend from increasing to decreasing.However,VTG in liver peaked in StageⅣ,and in serum and ovary peaked in Stage V,reflecting changes in the characteristics of VTG in the liver(synthesis),blood(transport),and ovaries(accumulation).During gonad development,VGR in the ovaries first increased and then decreased,reaching a peak in Stage V,in contrast to vgr mRNA expression.The VGR content in the testis was extremely low and stable,consistent with vgr mRNA.Immunohistochemistry results show that the location and intensity of VTG and VGR positive signals were synchronized with the changes of their protein content,which revealed that VTG was mainly synthesized in the liver cytoplasm,secreted into the blood,and transported to ovary in StageⅢ.VGR is highly expressed in oocytes in StageⅡ.In StageⅢ,a large amount of VTG reaches the ovary,when VGR begins to translate and is subsequently transported to the plasma membrane of the oocyte.Therefore,the positive signal of VGR was stronger near the plasma membrane of oocytes in StagesⅠandⅡ.By using qPCR,ELISA,and immunohistochemistry,the synthesis,transport,and accumulation of vitellogenin were elucidated and the mechanism of its endocytosis on egg membrane mediated by VTG during the development of P.argenteus was revealed preliminarily. | Zitao XIONG Jiazhe YANG Shun ZHANG Yajun WANG Shanliang XU Chunyang GUO Danli WANG | 2023 | Journal of Oceanology and Limnology2023，41，4： | 0 |
| 10 | Constrained Moving Path Following Control for UAV With Robust Control Barrier Function显示文摘This paper studies the moving path following(MPF)problem for fixed-wing unmanned aerial vehicle(UAV)under output constraints and wind disturbances.The vehicle is required to converge to a reference path moving with respect to the inertial frame,while the path following error is not expected to violate the predefined boundaries.Differently from existing moving path following guidance laws,the proposed method removes complex geometric transformation by formulating the moving path following problem into a second-order time-varying control problem.A nominal moving path following guidance law is designed with disturbances and their derivatives estimated by high-order disturbance observers.To guarantee that the path following error will not exceed the prescribed bounds,a robust control barrier function is developed and incorporated into controller design with quadratic program based framework.The proposed method does not require the initial position of the UAV to be within predefined boundaries.And the safety margin concept makes error-constraint be respected even if in a noisy environment.The proposed guidance law is validated through numerical simulations of shipboard landing and hardware-in-theloop(HIL)experiments. | Zewei Zheng Jiazhe Li Zhiyuan Guan Zongyu Zuo | 2023 | IEEE/CAA Journal of Automatica Sinica2023，10，7： | 0 |
| 11 | Cooperative control and communication of intelligent swarms:a survey显示文摘Individuals exchange information,experience and strategy based on communication.Communication is the basis for individuals to form swarms and the bridge of swarms to realize cooperative control.In this paper,the multirobot swarm and its cooperative control and communication methods are reviewed,and we summarize these methods from the task,control,and perception levels.Based on the research,the cooperative control and communication methods of intelligent swarms are divided into the following four categories:task assignment based methods(divided into market-based methods and alliance based methods),bio-inspired methods(divided into biochemical information inspired methods,vision based methods and self-organization based methods),distributed sensor fusion and reinforcement learning based methods,and we briefly define each method and introduce its basic ideas.Based on WOS database,we divide the development of each method into several stages according to the time distribution of the literature,and outline the main research content of each stage.Finally,we discuss the communication problems of intelligent swarms and the key issues,challenges and future work of each method. | Kun HOU Yajun YANG Xuerong YANG Jiazhe LAI | 2020 | Control Theory and Technology2020，18，2： | 0 |
| 12 | Research on spectrographic oil analysis of 12VE-230ZC diesel engine显示文摘With the spectrographic analysis, this paper analyzes the concentration of elements inoil, such as Fe, Cu, Cr, Al, Si etc. In order to monitor conditions and diagnose faults, the correlationcoefficient of main elements in oil has been used to study wear characteristics of friction pairs inrunning-in and working periods. | TIAN Hongxiang YAN Xinping PIAO Jiazhe ZHANG Yepeng 1. Reliability Engineering Institute, Wuhan University of Technology, Wuhan 430063, China 2. The Naval University of Engineering, Wuhan 430033, China 3. Mechanical Department, Hubei Polytechnical University, Wuhan 430068, China | 2001 | Science China Mathematics2001，44，S1： | 0 |
| 13 | Emulsion Polymerization of P (MMA-AA-EA) and Its Demulsifying Performance in Water/Oil Emulsion显示文摘Stable water-in-oil emulsions are produced in oil exploitation and cause many environmental and operational issues.In this paper,a co-polymer demulsifier is reported in detail;an emulsion polymerization method is used to prepare nano-P(MMA-AA-EA)with MMA,AA and EA as the monomers,DVB as the cross-linker and APS as the initiator.The resulting products are characterized by FT-IR.Furthermore,the surface tension and particles size analysis is investigated.The results show that the surface tension reduction is 10.66 mN/m at 20?C when the concentration of co-polymer is 1000 ppm and the average size is 76.99 nm.Moreover,the HLB of polymer is discussed specifically by changing the amount of AA.With the increase of AA,the HLB value of the polymer is increased accordingly.Besides,the demulsification performance of the co-polymer is also evaluated at different synthesis and demulsification conditions.It is showed that the maximum demulsification efficiency is 96%at 70?C for 60 min.The optimum concentration of demulsifier is 400 ppm when the amounts of AA and DVB are 1.4 g and 0.1 g,respectively.At last,the process of demulsification is showed under a microscope;the coalescence process of water droplets is indicated under the action of the demulsifier. | Xia Jiang Zhiming Huang Yuanzhu Mi Jiazhe Kuang Fan Ye | 2019 | Open Journal of Yangtze Oil and Gas2019，4，3： | 0 |
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