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Electrostatic nonlinear structures in Dissipative Electron-Positron-Ion Quantum Plasmas

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Chinese Physics Letters 2008年第12期25卷 4329-4332页

作者： s. A. Khan Q. Haque Department of Physics COMSATS Institute of Information Technology Islamabad Pakistan and Department of Physics Government College Bagh 12500 AJK Pakistan Theoretical Plasma Physics Division PINSTECH P. O. Nilore Islamabad Pakistan

Low frequency （in comparison to ion plasma frequency） ion-acoustic shocks and solitons in superdense electronpositron-ion quantum plasmas are studied. The quantum hydrodynamic model is used incorporating quantum Bohm forces and Fermi-Dirac statistical corrections to derive the deformed Korteweg de Vries-Burgers （dKdVB） equation in weakly nonlinear limit. The travelling wave solution of dKdVB equation is presented and results are discussed in different limits. It is found that shock height increases with increase of quantum pressure, positron concentration and dissipation. Further, it is seen that the width of soliton decreases with increase of quantum pressure

关键词： IOn acoustic waves sOUnD pressure sOLITOns KORTEWEG-de Vries equation THOMAs-Fermi theory nOnLInEAR wave equations -- numerical solutions QUAnTUM theory

Occurrence and geographical distribution of mangrove fungi

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Fungal Diversity 2021年第1期106卷 137-227页

作者： B.Devadatha E.B.G.Jones K.L.Pang M.A.Abdel-Wahab K.D.Hyde J.sakayaroj A.H.Bahkali M.s.Calabon V.V.sarma s.sutreong s.n.Zhang Center of Excellence in Fungal Research Mae Fah Luang UniversityChiang Rai 57100Thailand school of science Mae Fah Luang UniversityChiang Rai 57100Thailand Institute of Plant Health Zhongkai University of Agriculture and EngineeringHaizhu DistrictGuangzhou 510225People’s Republic of China Department of Botany and Microbiology King Saudi UniversityRiyadhSaudi Arabia Institute of Marine Biology and Centre of Excellence for the Oceans National Taiwan Ocean University2 Pei-NingRoadKeelung 20224TaiwanROC Department of Botany and Microbiology Faculty of ScienceSohag UniversitySohag 82524Egypt school of science Walailak University222 ThaiburiThasala DistrictNakhon Si Thammarat 80161Thailand Department of Biotechnology School of Life SciencesPondicherry UniversityKalapetPondicherry 605014India national Biobank of Thailand(nBT) National Science and Technology Development Agency(NSTDA)111 Thailand Science ParkThanon PhahonyothinTambon Khlong NuengAmphoe Khlong LuangPathum Thani 12120Thailand

This is a multidimensional review of mangrove fungi occurring as saprobes,pathogens and endophytes of a wide range of host substrates and those isolated from the water columns and sediments in ***-hundred and fifty taxa including 658 that are supported by both morphology and molecular data and 192 with only morphological data are *** constitute Ascomycota,the dominant group with 773 species,and 58 Basidiomycota,one Blastocladiomycota,five Chytridiomycota,and 13 *** study also includes data on mangrove yeasts 103 Ascomycota,39 Basidi-omycota and 193 taxa isolated from *** isolated from submerged parts of mangrove plants total *** most specious orders of mangrove fungi are Pleosporales 133,saccharomycetales 102,Microascales 101,Eurotiales 87,Hypocreales 60 and Xylariales *** genera include Candida 39,Aspergillus 53,Penicillium 17 and Corollospora *** highest number of mangrove fungi have been recorded from the Pacific Ocean 553,which is the largest ocean,followed by Indian 408 and Atlantic Oceans *** distribution of mangrove fungi varied from ocean to ocean with only 109 taxa common to the Atlantic,Indian and Pacific *** the various countries reported for mangrove fungi,India accommodates the highest number(339)followed by Thailand 303,Malaysia 171,Florida Everglades,UsA 134 and Brunei 134.A total of 60 different mangrove plants and their associates have been surveyed for mangrove *** results are discussed and compared with previous studies.

关键词： Host preference Marine ecology Marine fungi World distribution

Mineralogy, Geochemistry and Palaeomagnetism of Mafic Dykes from Kumaun Lesser Himalaya: Implication on Petrogenesis, Tectonic setting and Timing of Mafic Magmatism in northern Part of Indian Lithosphere

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Acta Geologica sinica(English Edition) 2016年第S1期90卷 120-121页

作者： santosh Kumar n.surdas singh s.K.Patil Department of Geology Kumaun University Dr.K.s.Krishnan Geomagnetic Research Laboratory

Occurrence of mafic dykes in Himalaya has been intriguing and debated since long because of its difficulty to ascent and emplacement through a thickened *** dykes in Kumaun Lesser Himalaya(KLH)of central Indian

关键词： Geochemistry and Palaeomagnetism of Mafic Dykes from Kumaun Lesser Himalaya Mineralogy Tectonic setting and Timing of Mafic Magmatism in northern Part of Indian Lithosphere

Adaptive load forecasting of the Hellenic electric grid

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Journal of Zhejiang University-science A(Applied Physics & Engineering) 2008年第12期9卷 1724-1730页

作者： s.sp.PAPPAs L.EKOnOMOU V.C.MOUssAs P.KARAMPELAs s.K.KATsIKAs Department of Information and Communication systems Engineering University of the AegeanSamos 83200 Greece Information Technology Faculty Hellenic American UniversityAthens 10680Greece school of Technological Applications Technological Educational Institute of AthensEgaleo 12210Greece Department of Technology Education and Digital systems University of PiraeusPiraeus 18532Greece

Designers are required to plan for future expansion and also to estimate the grid's future utilization. This means that an effective modeling and forecasting technique, which will use efficiently the information contained in the available data, is required, so that important data properties can be extracted and projected into the future. This study proposes an adaptive method based on the multi-model partitioning algorithm (MMPA), for short-term electricity load forecasting using real data. The grid's utilization is initially modeled using a multiplicative seasonal ARIMA (autoregressive integrated moving average) model. The proposed method uses past data to learn and model the normal periodic behavior of the electric grid. Either ARMA (autoregressive moving average) or state-space models can be used for the load pattern modeling. Load anomalies such as unexpected peaks that may appear during the summer or unexpected faults (blackouts) are also modeled. If the load pattern does not match the normal be-havior of the load, an anomaly is detected and, furthermore, when the pattern matches a known case of anomaly, the type of anomaly is identified. Real data were used and real cases were tested based on the measurement loads of the Hellenic Public Power Cooperation s.A., Athens, Greece. The applied adaptive multi-model filtering algorithm identifies successfully both normal periodic behavior and any unusual activity of the electric grid. The performance of the proposed method is also compared to that produced by the ARIMA model.

关键词： Adaptive multi-model filtering ARIMA Load forecasting Measurements Kalman filter Order selection seasonalvariation Parameter estimation

Protect You More Than Blank: Anti-Learning sensitive User Information in the social networks

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Journal of Computer science & Technology 2014年第5期29卷 762-776页

作者：袁明轩陈雷 Philip s. Yu 梅宏 Department of Computer science and Engineering The Hong Kong University of Science and Technology Huawei noah's Ark Laboratory Department of Computer science University of Illinois at ChicagoChicago IL 60637 U.S.A. FellowACMIEEE Key Laboratory of High Confidence software Technologies Ministry of Education Institute of software School of Electronics Engineering and Computer Science Peking University Department of Computer science and Engineering Shanghai Jiao Tong University

social networks are getting more and more attention in recent years. People join social networks to share their information with others. However, due to the different cultures and backgrounds, people have different requirements on what kind of information should be published. Currently, when social network websites publish data, they just leave the information that a user feels sensitive blank. This is not enough due to the existence of the label-structure relationship. A group of analyzing algorithms can be used to learn the blank information with high accuracy. In this paper, we propose a personalized model to protect private information in social networks. specifically, we break the label-structure association by slightly changing the edges in some users＇ neighborhoods. More importantly, in order to increase the usability of the published graph, we also preserve the influence value of each user during the privacy protection. We verify the effectiveness of our methods through extensive experiments. The results show that the proposed methods can protect sensitive labels against learning algorithms and at the same time, preserve certain graph utilities.

关键词： social network privacy protection

The role of cofilin in age-related neuroinflammation

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neural Regeneration Research 2020年第8期15卷 1451-1459页

作者： Amsha s.Alsegiani Zahoor A.shah Department of Medicinal and Biological Chemistry College of Pharmacy and Pharmaceutical Sciences University of Toledo

Aging brain becomes susceptible to neurodegenerative diseases due to the shifting of microglia and astrocyte phenotypes to an active“pro-inflammatory”state,causing chronic low-grade *** the fact that the role of neuroinflammation during aging has been extensively studied in recent years,the underlying causes remain *** identification of relevant proteins and understanding their potential roles in neuroinflammation can help explain their potential of becoming biomarkers in the aging brain and as drug targets for prevention and *** will eventually reduce the chances of developing neurodegenerative diseases and promote healthier lives in the *** this review,we have summarized the morphological and cellular changes in the aging brain,the effects of age-related neuroinflammation,and the potential role of cofilin-1 during *** also discuss other factors contributing to brain aging and neuroinflammation.

关键词： aging astrocyte-activation cofilin cofilin inhibitor cofilin/actin rods inflammaging microglial activation neurogenesis neuroinflammation

simple operated multipurpose temperature control cryostat

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Journal of Zhejiang University-science A(Applied Physics & Engineering) 2007年第5期8卷 793-796页

作者： ABBAs T.A. OMAR M.s. Department of Physics College of Science University of SalahaddinArbilIraqi KurdistanIraq

A suitable simple optical cryostat for optical, magneto-optical, electrical and thermo-electrical measurements was designed. It is suitable for use in a magnetic pool gap as narrow as less than 1 cm. Throughout a long period of time, the heat diffusion process of the cryostat can be easily operated at slow increase in sample temperature in a range 1.25 K/min at 200 K that will be reduced gradually to 0.66 K at room temperature. Liquid nitrogen was used to cool down the temperature. During the operation, the change in the measured energy gap of a semiconductor sample and other physical parameters resulting from the change of temperature can be corrected through the temperature coefficient of that parameter at the corresponding temperature. The cryostat was successfully used for all experiments mentioned above to measure the properties of a single crystal of GaP (Gallium Phosphate) semiconductor.

关键词： Optical cryostat Electrical cryostat Magneto-optical cryostat

A systematic approach for estimating water losses in irrigation canals

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Water science and Engineering 2022年第2期15卷 161-169页

作者： soroush Barkhordari s.Mehdy Hashemy shahdany Department of Water Engineering College of AburaihanUniversity of TehranTehran ***Iran Department of Biosystems and Agricultural Engineering Oklahoma State UniversityStillwaterOK 74075USA

In order to determine water losses in irrigation canals,a systematic approach was developed,consisting of two main components:a seepage simulation model and a hydraulic simulation *** sEEP/W module of the Geo-studio software was used to simulate the seepage rate,and the Hydrologic Engineering Center-River Analysis system(HEC-RAs)hydrodynamic model was used for hydraulic *** operation scenarios were designed to investigate all possible situations in daily operation of water distribution and delivery *** seepage simulation results show that the seepage losses were higher at the bottom and corners of the canal,because the hydraulic gradient was affected by the hydraulic *** hydraulic simulation results show that due to physical and management infrastructure(using non-automated and operator-based regulation structures),operational losses accounted for a significant volume of losses compared to seepage *** most operation scenarios,the maximum seepage loss was 10%,and the remaining 90%was related to operational *** is concluded that any factor(decrease or increase of inflow to the canal)that causes an increase or decrease of operational losses is ultimately a determining factor in reducing or increasing total ***,management approaches should be adopted to improve performance of the system and reduce losses,especially operational losses,by improving the operation methods of water level regulation and off-take structures.

关键词： seepage modeling Hydraulic simulation Operational performance evaluation Water losses Operating system

大功率离子推力器和流动控制单元验证现状及其2000小时寿命试验（英文）

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推进技术 2020年第1期41卷 109-120页

作者： Alexander s Lovtsov Michael Y selivanov Andrey n Kostin Andrey A shagayda Keldysh Research Center

为了发展基于电推进的大功率空间运输系统,需要开发和验证功率达数十千瓦的电推进系统,深空任务电推进系统优化的比冲要求高达105s。凯尔迪什研究中心(KeRC)正在开发这样的电推进部件。本文概述了35kW离子推力器IT-500及其流动单元FCU-... 详细信息

为了发展基于电推进的大功率空间运输系统,需要开发和验证功率达数十千瓦的电推进系统,深空任务电推进系统优化的比冲要求高达105s。凯尔迪什研究中心(KeRC)正在开发这样的电推进部件。本文概述了35kW离子推力器IT-500及其流动单元FCU-500的验证现状。作为其验证的一部分,完成了IT-500和FCU-500的2000h寿命试验。其中,离子推力器大部分验证条件是:输入功率17.8kW,使用了40kg氙,2018h寿命试验。本文介绍了磁场和离子光学以及石墨格栅开发现状。

关键词：离子推力器大功率放电室离子光学