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| 1 | A Discrete State Event Driven Simulation based Losses Analysis for Multi-terminal Megawatt Power Electronic Transformer显示文摘At present,power electronic transformers(PETs)have been widely used in power systems.With the increase of PET capacity to the megawatt level.the problem of increased losses need to be taken seriously.As an important indicator of power electronic device designing,losses have always been the focus of attention.At present,the losses are generally measured through experiments,but it takes a lot of time and is difficult to quantitatively analyze the internal distribution of PET losses.To solve the above problems,this article first qualitatively analyzes the losses of power electronic devices and proposes a loss calculation method based on pure simulation.This method uses the Discrete State Event Driven(DSED)modeling method to solve the problem of slow simulation speed of large-capacity power electronic devices and uses a loss calculation method that considers the operating conditions of the device to improve the calculation accuracy.For the PET prototype in this article,a losses model of the PET is established.The comparison of experimental and simulation results verifies the feasibility of the losses model.Then the losses composition of PET was analyzed to provide reference opinions for actual operation.It can help pre-analyze the losses distribution of PET,thereby providing a potential method for improving system efficiency. | Jialin Zheng Zhengming Zhao Bochen Shi Zhujun Yu Jiahe Ju Zhiqiang Fan | 2020 | CES Transactions on Electrical Machines and Systems2020，4，4： | 5 |
| 2 | 2020 Roadmap on two-dimensional nanomaterials for environmental catalysis显示文摘Environmental catalysis has drawn a great deal ofattention due to its clean ways to produce useful chemicals or carry out some chemical processes.Photocatalysis and electrocatalysis play important roles in these fields.They can decompose and remove organic pollutants from the aqueous environment,and prepare some fine chemicals.Moreover,they also can carry out some important reactions,such as 02 reduction reaction(ORR),O2 evolution reaction(OER),H2 evolution reaction(HER),CO2 reduction reaction(C02 RR),and N2 fixation(NRR).For catalytic reactions,it is the key to develop high-performance catalysts to meet the demand fortargeted reactions.In recentyears,two-dimensional(2 D) materials have attracted great interest in environmental catalysis due to their unique layered structures,which offer us to make use of their electronic and structural characteristics.Great progress has been made so far,including graphene,black phosphorus,oxides,layered double hydroxides(LDHs),chalcogenides,bismuth-based layered compounds,MXenes,metal organic frameworks(MOFs),covalent organic frameworks(COFs),and others.This content drives us to invite many famous groups in these fields to write the roadmap on two-dimensional nanomaterials for environmental catalysis.We hope that this roadmap can give the useful guidance to researchers in future researches,and provide the research directions. | Yulu Yang Mingguang Wu Xingwang Zhu Hui Xu Si Ma Yongfeng Zhi Hong Xia Xiaoming Liu Jun Pan Jie-Yinn Tang Siang-Piao Chai Leonardo Palmisano Francesco Parrino Junli Liu Jianzhong Ma Ze-Lin Wang Ling Tan Yu-Fei Zhao Yu-Fei Song Pardeep Singh Pankaj Raizada Deli Jiang Di Li R.A.Geioushy Jizhen Ma Jintao Zhang Song Hu Rongjuan Feng Gang Liu Minghua Liu Zhenhua Li Mingfei Shao Neng Li Jiahe Peng Wee-Jun Ong Nikolay Kornienko Zhenyu Xing Xiujun Fan Jianmin Ma | 2019 | Chinese Chemical Letters2019，30，12： | 2 |
| 3 | Hedgehog signaling in tissue homeostasis, cancers, and targeted therapies显示文摘The past decade has seen significant advances in our understanding of Hedgehog(HH)signaling pathway in various biological events.HH signaling pathway exerts its biological effects through a complex signaling cascade involved with primary cilium.HH signaling pathway has important functions in embryonic development and tissue homeostasis.It plays a central role in the regulation of the proliferation and differentiation of adult stem cells.Importantly,it has become increasingly clear that HH signaling pathway is associated with increased cancer prevalence,malignant progression,poor prognosis and even increased mortality.Understanding the integrative nature of HH signaling pathway has opened up the potential for new therapeutic targets for cancer.A variety of drugs have been developed,including small molecule inhibitors,natural compounds,and long non-coding RNA(LncRNA),some of which are approved for clinical use.This review outlines recent discoveries of HH signaling in tissue homeostasis and cancer and discusses how these advances are paving the way for the development of new biologically based therapies for cancer.Furthermore,we address status quo and limitations of targeted therapies of HH signaling pathway.Insights from this review will help readers understand the function of HH signaling in homeostasis and cancer,as well as opportunities and challenges of therapeutic targets for cancer. | Junjun Jing Zhuoxuan Wu Jiahe Wang Guowen Luo Hengyi Lin Yi Fan Chenchen Zhou | 2023 | Signal Transduction and Targeted Therapy2023，8，9： | 0 |
| 4 | Effect of loading rate on shear strength parameters of mechanically and biologically treated waste显示文摘Mechanical biological treatment(MBT)technology has attracted increasing attention because it can reduce the volume of waste produced.To deal with the current trend of increasing waste,MBT practices are being adopted to address waste generated in developing urban societies.In this study,a total of 20 specimens of consolidated undrained triaxial tests were conducted on waste obtained from the Hangzhou Tianziling landfill,China,to evaluate the effect of loading rate on the shear strength parameters of MBT waste.The MBT waste samples exhibited an evident strain-hardening behavior,and no peak was observed even when the axial strain exceeded 25%.Further,the shear strength increased with an increase in the loading rate;the effect of loading rate on shear strength under a low confining pressure was greater than that under a high confining pressure.Furthermore,the shear strength parameters of MBT waste were related to the loading rate.The relationship between the cohesion,internal friction angle,and logarithm of the loading rate could be fitted to a linear relationship,which was established in this study.Finally,the ranges of shear strength parameters cohesion c and effective cohesion c′were determined as 1.0–8.2 kPa and 2.1–14.9 kPa,respectively;the ranges of the internal friction angleφand effective internal friction angleφ’were determined as 16.2°–29°and 19.8°–43.9°,respectively.These results could be used as a valuable reference for conducting stability analyses of MBT landfills. | Guoyang Fan Zhenying Zhang Jiahe Zhang Jiayue Zhang Qiaona Wang Min Wang Bang Wang Chengyu Nie | 2022 | Frontiers of Environmental Science & Engineering2022，16，12： | 0 |
| 5 | Allelopathic Potential and Mechanism of Rosebay Willowherb[Chamaenerion angustifolium(L.)Scop.]Demonstrated on Model Plant Lettuce显示文摘Allelopathic plants are important resources for the discovery of bioherbicides.Rosebay willowherb[Chamaenerion angustifolium(L.)Scop.syn.Epilobium angustifolium L.]widely distributes in Western Asia,Europe,and North America,and behaves as a dominant species within the community due to the production of substances that restrict growth of other plants.This study aims at investigating the allelopathic potential of rosebay willowherb by evaluation of the effects of aqueous extracts from different parts on seed germination and seedling growth in lettuce(Lactuca sativa L.),as well as measuring the accumulation of reactive oxygen species and structural analysis of root tips via scanning electron and transmission electron microscopy.It was observed that the aqueous extracts from the leaves of rosebay willowherb had the strongest inhibitory effect on the germination index,germination energy and total germination of lettuce seeds,followed by capsular fruits and flowers,and the inhibition effect of stems was the weakest.All aqueous extracts(100 mg/mL)showed a significant inhibitory effect on radicle elongation of lettuce seedlings.Additionally,after treatment with the aqueous extract of rosebay willowherb leaves,accumulation of reactive oxygen species increased in columella cells,which correlated with disruption of root tip structure. | Hailin Shi Shiwei Sun Xiaohong Liu Jiahe Fan Jin Wang Ke Zhao Wei Wang | 2021 | Phyton-International Journal of Experimental Botany2021，90，1： | 0 |
| 6 | Computer vision for road imaging and pothole detection:a state-of-the-art review of systems and algorithms显示文摘Computer vision algorithms have been utilized for 3-D road imaging and pothole detection for over two decades.Nonetheless,there is a lack of systematic survey articles on state-of-the-art(SoTA)computer vision techniques,especially deep learningmodels,developed to tackle these problems.This article first introduces the sensing systems employed for 2-D and 3-D road data acquisition,including camera(s),laser scanners and Microsoft Kinect.It then comprehensively reviews the SoTA computer vision algorithms,including(1)classical 2-D image processing,(2)3-D point cloud modelling and segmentation and(3)machine/deep learning,developed for road pothole detection.The article also discusses the existing challenges and future development trends of computer vision-based road pothole detection approaches:classical 2-D image processing-based and 3-D point cloud modelling and segmentation-based approaches have already become history;and convolutional neural networks(CNNs)have demonstrated compelling road pothole detection results and are promising to break the bottleneck with future advances in self/un-supervised learning for multi-modal semantic segmentation.We believe that this survey can serve as practical guidance for developing the next-generation road condition assessment systems. | Nachuan Ma Jiahe Fan Wenshuo Wang JinWu Yu Jiang Lihua Xie Rui Fan | 2022 | Transportation Safety and Environment2022，4，4： | 0 |
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