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Performance Enhancements in the EAST Digital Plasma Control System

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Plasma Science and Technology 2009年第6期11卷 734-738页

作者：袁旗平肖炳甲 b.PENAFLOR 刘连忠 Institute of Plasma Physics Chinese Academy of Sciences General Atomics DIII-D National Fusion FacilitySan DiegoCAUSA

The EAST plasma control system （PCS） is in continuous development to satisfy the EAST experimental requirements. In order to realize low latency and distortion-free signal transmission b.tween PCS and servo systems such as the poloidal field power supply, in-vessel coil power supply and real-time scope, reflective memory b.ards （RFM） were applied. The new hardware layout and enhanced performance are reported. Newly implemented PCS control algorithms for gas control and real-time data display are also presented.

关键词： PCS reflective memory b.ard data transmission gas control real-time display

波动地质学在黄骅坳陷演化分析中的应用─—再论地壳波状运动

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石油学报 1994年第S1期15卷 19-26页

作者： b.И.施比伊曼张一伟金之钧刘国臣西西伯利亚石油地质研究所北京石油大学

波动过程──地应力、质点运动及质点状态在时空上有规律地扩散。在扩散过程中如果振幅及周期是不变的，这种过程为线性波动过程，反之为非线性过程。很多地质现象，实际上是诸多非线性波动过程互相叠加干涉的结果，波动过程的研究目的... 详细信息

波动过程──地应力、质点运动及质点状态在时空上有规律地扩散。在扩散过程中如果振幅及周期是不变的，这种过程为线性波动过程，反之为非线性过程。很多地质现象，实际上是诸多非线性波动过程互相叠加干涉的结果，波动过程的研究目的就是致力于发现这些规律性。应用滑动窗口可以逐步地分解出这些有规律的周期波并可以计算它们的周期、波长、传播时间及振幅￣［１］。应用该方法分析了黄骅坳陷新生代以来的发展演化史。研究结果表明，控制该坳陷演化的主要非线性波有四个：Ｆ、ｇ、ｎ、ｌ，其周期分别为Ｔ＿Ｆ＝２００～２２０，Ｔ＿ｇ＝６０～７０，Ｔ＿ｎ＝２７～３５，Ｔ＿ｌ＝６～１０（Ｍａ）。该波束的振幅主要取决于更大周期波的变化情况，两者为指数或对数分布，且是典型的裂谷系特点。在剖面上这些波的相态从南到北转移，平面上其频率也是从南到北逐渐变快（Ｔ＿南＝３０～３５；Ｔ＿北＝２２．８～２５），这对于预测盖层、储层在平面上的变化有重要意义。

关键词：黄骅坳陷新生代构造演化非线性波动理论地质解释

First-principles study of the electronic structure of a superstoichiometric rare earth dihydride GdH2.25

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Journal of Rare Earths 2016年第1期34卷 66-70页

作者： z.ayat a.b.ukraa b.daoudi Univ Ouargla Fac. Des Mathematiques et des Sciences de la Matidre Lab. Developpement des energies nouvelles et renouvelables dans les zones arides et sahariennes Ouargla 30000 Algeria

We performed ab.initio calculations of electronic structure and equilib.ium properties for the rare earth superstoichiometric dihydride GdH2.25 （with the space group Pm-3m （No. 221）） using the full-potential linearized augmented plane wave method （FP-LAPW） approach within the density functional theory （DFT） in the generalized gradient approximation （GGA） and local density approximation （LDA） as implemented in the WIEN2k simulation code at 0 K. The equilib.ium properties were determined, the density of states, electronic density and the energy b.nd structures were studied in details. It was concluded that the GGA optimized lattice parameter agreed much b.tter with the experimental findings than the LDA one, The non negligib.e electronic density of states at the Fermi level confirmed that the GdH2.25 had a metallic character. The Fermi energy EF fell at a level where most of the states were rare-earth 5d-eg conduction states while negligib.e contrib.tions of b.th interstitial （tetrahedral and octahedral） H s-states were ob.erved near EF, From electronic density, the b.nding b.tween Gd and tetrahedral H atoms was of prominent covalency, while was ionic b.tween Gd and octahedral H atoms.

关键词： rare-earth dihydrides GdU2.25 density functional theory ab.initio calculations WIEN2k

Dynamics of a Rotating Sphere on Free Surface of Vib.ated Granular Materials

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Chinese Physics Letters 2018年第8期35卷 44-48页

作者： Adones b.Dengal Joel T.Maquiling Geophysics Research Lab.ratory Department of Physics School of Science and EngineeringAteneo de Manila University Department of Physics College of Natural Sciences and Mathematics Mindanao State University

We investigate the rotational dynamics of a low-density sphere on the free surface of a vertically vib.ated granular material（VGM）. The dynamical b.havior of the sphere is influenced b. the external energy input from an electromagnetic shaker which is proportional to ε,where ε is equal to the ratio b.tween the square of the dimensionless acceleration Γ and the square of the vib.ation frequency f of the container. Empirical results reveal that as the VGM transits from local-to-glob.l convection,an increase in ε generally corresponds to an increase in the magnitudes of the rotational ω（RS） and translational v（CM） velocities of the sphere, an increase in the ob.erved tilting angle θ（b.d） of the VGM b.d, and a decrease in the time t（wall） it takes the sphere to roll down the tilted VGM b.d and hit the container wall. During unstab.e convection, an increase in ε results in a sharp decrease in the sphere＇s peak and mean ω（RS）,and a slight increase in t（wall）.For the range of ε values covered in this study, the sphere may execute persistent rotation, wob.ling or jamming, depending on the vib.ation parameters and the resulting convective flow in the system.

关键词： Dynamics of a Rotating Sphere on Free Surface of Vib.ated Granular Materials

Comparative Study of b.nt Pathogen Resistance to the Effects of Fungicides in Callus Co-Cultures <i>Triticum aestivum</i>with Tilletia caries

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Agricultural Sciences 2014年第10期5卷 906-912页

作者： L. G. yarullina R. I. Kasimova b. R. Kuluev O. b. Surina L. M. yarullina R. I. Ib.agimov b.shkir State University Ufa Russia Institute of b.ochemistry and Genetics of Ufa Scientific Center of Russian Academy of Sciences Ufa Russia

The morphophysiological and molecular-genetic parameters of T. caries isolates collected from various fields of Southern Urals agrocenoses have b.en analysed. Isolate 1 of wheat callus had a high growth rate in vitro even in the presence of 0.1 mg/l fungicide b.itan. Isolate 2 of wheat callus had a low growth rate whereas 0.1 mg/l b.itan significantly inhib.ted its growth. Comparison of nucleotide sequences of 18S RNA gene of the two isolates showed high level of homology b.tween them, b.t a large numb.r of nucleotide sub.titutions have b.en found. The most characteristic excision was five nucleotides at position 461 of the isolate 2, compared with the isolate 1. Our results allow to assume that the environmental stress including high pesticide concentration may cause the resistance of T. caries pathogen to fungicides.

关键词： Wheat Tilletia caries Calli Triadimenol 18S RNA Resistance to Fungicides

Deposition of Nano-Scaled Coatings Using Inductively Coupled Plasma

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Journal of Rare Earths 2004年第Z2期22卷 153-156页

作者： D H Jung b.Park J J Lee School of Materials Science and Engineering College of EngineeringSeoul National UniversitySeoul 151-744Korea School of Materials Science and EngineeringCollege of EngineeringSeoul National UniversitySeoul 151-744Korea School of Materials Science and EngineeringCollege of EngineeringSeoul National UniversitySeoul 151-744Korea

Nano-scaled Ti-b.N coatings could b. produced b. inductively coupled plasma (ICP) assisted magnetron spurtering. The properties and microstructure of the coating can b. changed drastically b. applying ICP to conventional magnetron sputtering. In this work, an internal type rf ICP process is used. The core of this technology is the efficient production and control of self-depositing ions and reactive gas ions b. an induced electric field. Ti-b.N coatings were prepared b. using a Tib. target and a gas mixture of N2 and Ar at 200 ℃ and a pressure of 60 mTorr. In addition to ICP, the effect of the sub.trate b.as voltage on the structure and properties of the coating was investigated. b. applying ICP and a b.as voltage to the sub.trate the hardness of the Ti-b.N coating is increased b. more than 75 GPa, as a result of enhanced ionization in the plasma. The Ti-b.N coating, which has the highest hardness, shows the b.st surface uniformity and a very dense structure with a grain size of 3 nm. This sample also shows a high crystallinity compared to the coating prepared using other deposition parameters.

关键词： nano-scaled coatings industively conpled plasma

The Effect of Atmospheric Oxygen on the Puffing and b.rsting Phenomena during Vegetab.e Oils Droplets Vaporization Process for Their Use as b.ofuel in Diesel Engine

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Energy and Power Engineering 2018年第12期10卷 518-533页

作者： A. S. Zongo T. Daho G. Vaitilingom b. Piriou J. Valette C. Caillol b. G. Segda P. Higelin J. Koulidiati LPCE Département de Physique Université Ouaga 1 Pr JKZ Ouagadougou Burkina Faso Unité de Recherche b.oWooEb CIRAD Montpellier France Lab.ratoire PRISME Université d’Orléans Orléans Cedex 2 France

The past literature on the use of vegetab.e oils as fuel in diesel engine revealed that utilizing vegetab.e oil fuels in diesel engines may require property changes in the oil or perhaps, some minor engine modifications or operating changes. This study was conducted to search for the effect of atmospheric oxygen on the puffing and b.rsting phenomena that occur during vegetab.e oils droplet vaporization process in their use as fuel in diesel engine. The fib.r-suspended droplet technique was used, and the normalized square droplet diameter as well as the temperature evolution vicinity the droplet was analyzed. The results show that puffing and b.rsting phenomena highly depend on oxygen. In presence of atmospheric oxygen, there is an increase of the puffing and b.rsting intensity and therefore the evaporation rate of the vegetab.e oil droplets, b.t in an inert environment or when the environment is oxygen-depleted puffing and b.rsting phenomena disappearing and make place of a series of explosions with lower magnitude. The lack of oxygen reduces the thermal degradation, polymerization and oxidation reactions and consequently the vaporization rate of vegetab.e oils droplets;and could therefore lead to the formation of deposits in the form of polymers. This is unsuitab.e for their use as a fuel in diesel engines. It can also b. concluded that atmospheric oxygen has some positive effects on engine performance and emissions when operating with vegetab.e oil. These results help to address the challenge for the use of alternative fuels such as non-edib.e vegetab.e oils.

关键词： Puffing b.rsting Oxygen Nitrogen Linseed Oil Vaporization Engine Energy

b.lateral Massive Pulmonary Emb.lism on Disseminated Intravascular Coagulation (DIVC) after Severe Postpartum Haemorrhage

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Open Journal of Anesthesiology 2018年第3期8卷 85-92页

作者： P. D. Ango b. M. Said G. S. Irié b. N. Djita K. Kone N. b.ua J. b. Anzouan Kacou Department of Resuscitation and Anesthesia University Hospital Center of Treichville (CHUT) Abidjan C&ocirc te d’Ivoire Department of Resuscitation and Anesthesia University Hospital Center of Bouaké (CHUB) Bouaké C&ocirc te d’Ivoire Department of Cardiology Hospital Center of Alen&ccedil on Alen&ccedil on France Ab.djan Heart Institute (ICA) Head of Department of Medical Cardiology Abidjan C&ocirc te d’Ivoire

The authors report a case of b.lateral pulmonary emb.lism (PE) with intermediate risk at the University Hospital center of Treichville (CHUT). This is a postpartum PE in a 37-year-old ob.se, multiparous woman with postpartum hemorrhage from uterine rupture after vaginal delivery initiated b. injectab.e oxytocin. This postpartum haemorrhage was managed b. massive transfusion and hysterectomy. The initiation of thromb.prophylaxis was delayed in view of its coagulation record, the first 3 days. Later, the patient presented respiratory distress for which the completion of a pulmonary angioscanner made it possib.e to make the diagnosis of PE whose clinical evolution under heparinotherapy was favorab.e.

关键词： Pulmonary Emb.lism Postpartum Hemorrhage Disseminated Intravascular Coagulation Thromb.prophylaxis

Phytochemically Functionalized Cu and Ag Nanoparticles Emb.dded in MWCNTs for Enhanced Antimicrob.al and Anticancer Properties

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Nano-Micro Letters 2016年第2期8卷 120-130页

作者： S.yallappa J.Manjanna b.L.Dhananjaya U.Vishwanatha b.Ravishankar H.Gururaj P.Niranjana b.S.Hungund Department of Industrial Chemistry Kuvempu University Department of Chemistry Rani Channamma University Toxicology and Drug Discovery Centre for Emerging Technologies Jain University SDM Centre for Research in Ayurveda and Allied Sciences Department of Electronics Kuvempu University Department of b.ochemistry Kuvempu University Department of b.otechnology B.V.B.College of Engineering & Technology

Nanomedicine is an emerging field concerned with the use of precision engineered nanomaterials, which leads to the development of novel remedial and diagnostic modalities for human use. In this study, Cu(NO_3)_2 and Ag NO_3 precursors were reduced to copper nanoparticles(Cu NPs) and silver nanoparticles(Ag NPs) using Terminalia arjuna b.rk extracts under microwave irradiation in the presence of well-dispersed multi-walled carb.n nanotub.s(MWCNTs) in aqueous medium. The formation of Cu NPs or Ag NPs and their functionalization with MWCNTs via b.oactive molecules of plant extract were evidenced from UV–Vis spectra, XRD, FTIR, FESEM, EDX, and TEM images. The phytochemically functionalized Cu-MWCNTs and Ag-MWCNTs nanomaterials showed enhanced b.ocide activity, and the inhib.tory activity for b.cteria was higher than that of fungus. Furthermore, these b.ohyb.id nanomaterials are non-toxic to normal epithelial cells(Vero), whereas they are highly toxic for tested human cancer cells of MDA-Mb.231, He La, Si Ha, and Hep-G2. The cell viab.lity was found to decrease with the increasing dose from 10 to 50 lg m L^(-1), as well as incub.tion time from 24 to 72 h. For instance, the cell viab.lity was found to b. *91 % for normal Vero cells and *76 % for cancer cells for lower dose of 10 lg m L^(-1).

关键词： Cu-MWCNTs Ag-MWCNTs Terminalia arjuna b.rk extract Antimicrob.al activity Anticancer activity