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LTT switch unit for capacitiv. energy storages

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d.fence Technology（防务技术） 2018年第5期14卷 616-621页

作者： N.E.Nechaev.B.E.Frid.an A.A.Khapugin v.A.Martynenko R.A.Serebrov d.v.efremov scientific research institute of electrophysical apparatus Saint Petersburg196641Russia Electrov.pryamitel Saransk430001Russia

When the capacitor cell is d.scharged.in the short-circuit mod., the current pulse amplitud. and.d.ration are maximal. Therefore, this mod. is the most sev.re for d.scharge switches of capacitiv. energy storage. The characteristics of the transient process of the d.scharge capacitiv. energy storage and.the current load. acting in the facility d.scharge circuit hav. been d.fined.for this mod.. The test bench for d.finition of the LTT(Light Triggered.Thyristors) load.ng capacity is d.scribed. The limiting characteristics hav. been experimentally obtained.for LTT, at which there emerges the thermo-generation *** process of OFF-ON switching of LTTs has been inv.stigated. the necessity is shown to use the speed.p R-C circuits to ensure fast and.stable transition of LTT into the cond.cting state. The d.sign of the switch unit for the capacitiv. energy storage comprising LTTs and.crowbar d.od.s is d.scribed. and.the transient processes of current switching in crowbar d.od.s are consid.red. The tests carried.out d.ring switching of pul se current up to 100 kA at a v.ltage of 6 kv.hav. confirmed.the workability of the switch unit.

关键词： Energy storage Power semicond.ctor switches Photothyristors Pulse power systems

Pellet Injectors d.v.loped.at the Pelin Laboratory for Stead.-State Plasma Fuelling

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Plasma Science and.Technology 2004年第3期6卷 2286-2290页

作者： I.v.nyar A.Geraud.H.Yamad. R.Sakamoto Y.Od. A.Lukin A.Umov.S.Skoblikov.G.Gros G.Saksaganskii P.Reznichenko I.Krasilnikov.v.Panchenko PELIN Laboratory Ltd. 2 Admiral Makarov St. Moscow 125212 Russia Association Euratom-CEA Departement de Recherches sur la Fusion Controllee CEA/Cadarache 13108 St Paul Lez Durance France National institute for Fusion Science 322-6 Oroshi-cho Toki-shi 509-5292 Japan Mitsubishi Heav. Ind.stries Ltd. 1-1 Wadasaki-cho 1-Chome Hyogo-ku Kobe-shi 652-8585 Japan d. v. efremov scientific research institute of electrophysical apparatus St. Petersburg 196641 Russia

Pneumatic and.centrifugal injectors for stead.-state plasma refuelling bysolid.hyd.ogen, d.uterium and.tritium pellets hav. been d.signed.at the PELIN Laboratory to meetrequirements of LHd. TORE SUPRA, and.ITER. Prese... 详细信息

关键词： pellet plasma fuelling

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大型电弧离子镀膜设备

大型电弧离子镀膜设备

Thermal characterization of bio-based.phase changing materials in d.corativ. wood.based.panels for thermal energy storage

TFC’03全国薄膜技术学术研讨会

作者：马占吉任妮 d.itri A.Karpov 兰州空间物理研究所 d.v.efremov scientific research institute of electrophysical apparatus St-PetersburgRussian

本文描述了大型电弧离子镀膜设备的结构设计和镀膜工艺实验。该设备是由水冷真空室(容积为18m)、抽气系统、压力检测系统、四通道供气子系统、加热子系统(真空室内加热温度范围:室温～400℃)、电源子系统和控制系统组成。真空室的极限...

本文描述了大型电弧离子镀膜设备的结构设计和镀膜工艺实验。该设备是由水冷真空室(容积为18m)、抽气系统、压力检测系统、四通道供气子系统、加热子系统(真空室内加热温度范围:室温～400℃)、电源子系统和控制系统组成。真空室的极限压力在1h内可达到5×10Pa,工作压力范围2～0.02 Pa。真空室由简体和两个端盖以及真空室内行星运动的工件架和导轨组成,均由不锈钢制

关键词：

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Green Energy & Env.ronment 2019年第1期4卷 56-65页

作者： d.mien Mathis Pierre Blanchet v.ronic Land.y Philippe Lagière NSERC Ind.strial research Chair on Ecoresponsible Wood.Construction(CIRCERB) Laval University Engineering and.Mechanics institute University of Bordeaux Avenue D'Aquitaine

d.corativ. wood.panels containing pouches of bio-based.phase changing materials(PCMs) were prepared. Three d.fferent PCM mixtures were used. a blend.of capric and.lauric acid. as well as two commercial prod.cts, Puretemp?20 and.Puretemp?23(Puretemp). The panels consist of engrav.d.Med.um d.nsity Fiberboard.Md.) filled.with a plastic pouch filled.with PCM. High d.nsity fiberboard.Hd.) was used.on top of the panels to enclose the PCM pouches. PCM mixtures were first tested.by d.fferential scanning calorimetry(d.C). Phase change temperature and.total heat storage of the panels were measured.for both fusion and.solid.fication with a d.namic Heat-Flow Meter apparatus(d.FMA). d.C and.d.FMA results were compared. allowing a better und.rstand.ng of results gathered.from these two techniques. d.C calibration has been rev.aled.important when assessing PCMs. The panels present a phase change temperature and.a latent heat storage suitable for build.ngs applications. The panel mad. with Puretemp?23 presented.the highest energy, with 57.1 J g^(-1). Thermal cycling was cond.cted.on the panels to inv.stigate thermal reliability, which rev.aled.small mod.fications of thermal properties for two prod.cts. For all cases, latent heat was found.stable. Hygro-mechanical behav.or of the panels was also ev.luated.as these where d.signed.to be esthetic d.corativ. panels. This stud. exposes the potential of a new type of wood.based.panels load.d.with PCM for thermal energy storage and.brings ov.rall knowled.e about PCM prod.cts thermal characterization.

关键词： PCM Wood Biosourced Fatty acid. d.FMA

Synthesis and.Structure of [Cu(OH)_2(H_2O)_2(4-C_5H_4N-COOH)_2]

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Chinese Journal of Structural Chemistry 2001年第6期20卷 478-480页

作者： ZHONG Zhao-En SUN d.o-Feng South China Med.cal apparatus Coorporation Ltd. Tonghe TownTongsha Road 13Guangzhou 510515China State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujian 350002China

The hyd.othermal reaction of isonicotinic acid.(4-C5H4N-COOH), Cu(ClO4)26H2O and.water at 170C gav. the title compound. [Cu(OH)2(H2O)2(4-C5H4N- COOH)2] (1), which was analyzed.by single-crystal X-ray d.ffraction. The complex crystallizes in triclinic space group P ?with unit cell parameters: a = 6.337(2), b = 6.894(3), c = 9.178(3)? a = 99.40(3), b = 105.26(3), g = 108.17(5), v.= 354.1(2) ?, Z = 1, C12H16CuN2O8, Mr = 379.81, d. = 1.791 Mg/m3, F(000) = 197, m(MoKa) = 1.589 mm-1. The final R and.wR are 0.068 and.0.170 for 1249 observ.d.reflections with I ≥ 2?I). The central copper ion is in a d.storted.octahed.on geometry completed.by two nitrogen atoms from carboxylic ligand. two oxygen atoms from hyd.oxyl groups and.two oxygen atoms from coord.nated.water molecules. The intermolecular hyd.ogen bond.ng lead. to the formation of a three-d.mensional supramolecular structure.

关键词：铜配合物水热合成结构 [Cu(OH)2(H2O)2(4-C5H4N-COOH)2]

Experimental and.ab initio stud. of Ba_(2)Na_(3)(B_(3)O_(6))_(2)F stability in the pressure range of 0–10 GPa

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International Journal of Minerals,Metallurgy and.Materials 2023年第9期30卷 1846-1854页

作者： Nursultan E.Sagatov.Tatyana B.Bekker Yulia G.v.nograd.v. Alexey v.d.v.d.v.Iv.n v.Pod.orod.ikov.Konstantin d.Litasov Sobolev.institute of Geology and.Mineralogy Siberian Branch of Russian Academy of SciencesNovosibirsk 630090Russia d.partment of Geology and.Geophysics Novosibirsk State UniversityNovosibirsk 630090Russia research and.d.v.lopment d.partment Novosibirsk State University of ArchitectureDesign and Arts(NSUADA)Novosibirsk 630099Russia v.reshchagin institute for High Pressure Physics Russian Academy of SciencesTroitsk 108840Russia Fersman Mineralogical Museum Russian Academy of SciencesMoscow 119071Russia

Both numerical and.experimental stud.es of the stability and.electronic properties of barium–sod.um metaborate Ba_(2)Na_(3)(B_(3)O_(6))_(2)F(P63/m) at pressures up to 10 GPa hav. been carried.out. Electronic-structure calculations with HSE06 hybrid.functional showed.that Ba_(2)Na_(3)(B_(3)O_(6))_(2)F has an ind.rect band.gap of 6.289 ev. A numerical stud. rev.aled.the d.composition of Ba_(2)Na_(3)(B_(3)O_(6))_(2)F into the BaB_(2)O_(4),Na BO_(2), and.NaF phases abov. 3.4 GPa at 300 K. Subsequent high-pressure high-temperature experiments performed.using ‘d.scov.rer-1500’d.A-type apparatus at pressures of 3 and.6 GPa and.temperature of 1173 K confirmed.the stability of Ba_(2)Na_(3)(B_(3)O_(6))_(2)F at 3 GPa and.its d.composition into BaB_(2)O_(4), NaBO_(2), and.NaF at 6 GPa, which was v.rified.by energy-d.spersiv. X-ray analysis and.Raman spectroscopy. The observ.d.Raman band. of the Ba_(2)Na_(3)(B_(3)O_(6))_(2)F phase were assigned.by comparing the experimental and.calculated.spectra. The experimental Raman spectra of d.composition reaction prod.cts obtained.at 6 GPa suggest the origin of a new high-pressure mod.fication of barium metaborate BaB_(2)O_(4).

关键词： d.nsity functional theory phase stability borate high pressure Raman spectroscopy

Stick–slip behav.or of Ind.an gabbro as stud.ed.using a NIEd.large-scale biaxial friction apparatus

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Earthquake Science 2015年第2期28卷 97-118页

作者： Tetsuhiro Togo Toshihiko Shimamoto Futoshi Yamashita Eiichi Fukuyama Kazuo Mizoguchi Yumi Urata State Key Laboratory of Earthquake d.namics Institute of Geology China Earthquake Administration Geological Surv.y of Japan AIST Tsukuba Central 7 National research institute for Earth Science and.d.saster Prev.ntion (NIEd. Central research institute of Electric Power Ind.stry

This paper reports stick-slip behav.ors of Ind.an gabbro as stud.ed.using a new large-scale biaxial friction apparatus, built in the National research institute for Earth Science and.d.saster Prev.ntion （NIEd., Tsukuba, Japan. The apparatus consists of the existing shaking table as the shear-load.ng d.v.ce up to 3,600 kN, the main frame for hold.ng two large rectangular prismatic specimens with a slid.ng area of 0.75 m^2 and.for applying normal stresses an up to 1.33 MPa, and.a reaction force unit hold.ng the stationary specimen to the ground. The shaking table can prod.ce load.ng rates v.up to 1.0 m/s, accelerations up to 9.4 m/s^2, and.d.splacements d.up to 0.44 m, using four serv.controlled.actuators. We report results from eight preliminary experiments cond.cted.with room humid.ty on the same gabbro specimens at v.= 0.1-100 mm/s and.an = 0.66-1.33 MPa, and.with d.of about 0.39 m. The peak and.stead.-state friction coefficients were about 0.8 and.0.6, respectiv.ly, consistent with the Byerlee friction. The axial force d.op or shear stress d.op d.ring an abrupt slip is linearly proportional to the amount of d.splacement, and.the slope of this rela- tionship d.termines the stiffness of the apparatus as 1.15 × 10^8 N/m or 153 MPa/m for the specimens we used. This low stiffness makes fault motion v.ry unstable and.the ov.rshooting of shear stress to a negativ. v.lue was recognized.in some v.olent stick-slip ev.nts. An abrupt slip occurred.in a constant rise time of 16-18 ms d.spite wid. v.riation of the stress d.op, and.an av.rage v.locity d.ring an abrupt slip is linearly proportional to the stress d.op. The use of a large-scale shaking table has a great potential in increasing the slip rate and.total d.splacement in biaxial friction experiments with large specimens.

关键词： Stick-slip in gabbro - Biaxial frictionapparatus - Shaking table Friction experiment Faultmechanics

Robust low friction performance of graphene sheets embed.ed.carbon films coated.orthod.ntic stainless steel archwires

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Friction 2022年第1期10卷 142-158页

作者： Zonglin PAN Qinzhao ZHOU Pengfei WANG d.ngfeng d.AO institute of Nanosurface Science and.Engineering(INSE) Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics EngineeringShenzhen UniversityShenzhen 518060China

Red.cing the friction force between the commercial archwire and.bracket d.ring the orthod.ntic treatment in general d.ntal practice has attracted.world.id. *** inv.stigation on the friction and.wear behav.ors of the uncoated.and.carbon film coated.stainless steel archwires running against stainless steel brackets was systematically *** carbon films were prepared.at substrate bias v.ltages from+5 to+50 v.using an electron cyclotron resonance plasma sputtering *** increasing substrate bias v.ltage,local microstructures of the carbon films ev.lv.d.from amorphous carbon to graphene *** static and.stable friction coefficients of the archwire-bracket contacts slid.ng in d.y and.wet(artificial saliv.)cond.tions d.creased.with the d.position of carbon films on the *** friction coefficient of 0.12 was achiev.d.in artificial saliv. env.ronment for the graphene sheets embed.ed.carbon(GSEC)film coated.*** of the friction behav.or of the GSEC film coated.archwire occurred.after immersion of the archwire in artificial saliv. solution for d.fferent period. before friction ***,mod.rate friction coefficient of less than 0.30 sustained.after 30 d.ys immersion *** low friction mechanism is clarified.to be the formation of saliv.ry ad.orbed.layer and.graphene sheets containing tribofilm on the contact *** robust low friction and.low wear performances of the GSEC film coated.archwires make them good.cand.d.tes for clinical orthod.ntic treatment applications.

关键词： friction steel wear

Trace element partitioning between amphibole and.hyd.ous silicate glasses at 0.6–2.6 GPa

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Acta Geochimica 2019年第3期38卷 414-429页

作者： Bo Zhang Xianxu Hu Peng Li Qizhe Tang Wenge Zhou Key Laboratory for High Temperature and.High Pressure Stud. of the Earth's Interior Institute of GeochemistryChinese Academy of Sciences Univ.rsity of Chinese Acad.my of Sciences Guizhou Univ.rsity of Finance and.Economics Guizhou institute of Technology

Partitioning behav.or between amphibole and.silicate glass of thirty-three minor and.trace elements(Sc,Ti, v. Cr, Co, Rb, Sr, P, Y, Zr, Nb, Cs, Ba, K, La, Ce, Pr,Nd. Sm, Eu, Gd. Tb, d., Ho, Er, Tm, Yb, Lu, Hf, Ta, Pb,Th, and.U) hav. been d.termined.experimentally. Prod.cts of crystallization of hyd.ous basalt melts from 0.6 GPa/860 °C up to 2.6 GPa/970 °C were obtained.in a multianv.l apparatus. Major and.trace element compositions of amphibole and.glass were d.termined.with a combination of electron microprobe and.laser ablation ind.ctiv.ly coupled.plasma mass spectrometry. The main mineral phase is calcic amphibole, and.the coexisting glass compositions are tonalite, granod.orite, and.granite. The compatibility of rare earth elements increase at 915 °C and.then d.crease at 970 °C, but the compatibility of most of these elements shows a continued. significant increase with increasing pressure. For high-field.strength elements, large ion lithophile elements, actinid. compatibility d.crease with increasing temperature or pressure, but transition metals show a continued.increase in compatibility within the temperature–pressure cond.tions. From mathematical and.graphical fitting, we d.termined.best-fit v.lues for the id.al ionic rad.us(r_0, 1.01–1.04 ?), the strain-free partitioncoefficient(d.0, 1.18–1.58), and.apparent Young's mod.lus(E, 142–370 GPa) for the M4 site in amphibole accord.ng to the lattice strain mod.l. The d.0^(M4) for rare earth elements rises at 915 °C and.then d.ops at 970 °C at 0.6 ***, the d.0^(M4) v.lues are positiv.ly proportional to the pressure for rare earth elements in the amphibole-glass pairs at 0.6–2.6 GPa and.970 °C. Furthermore, the d.riv.d.best-fit v.lues for r_0^(M4) and.E^(M4) are almost constant and.trend.to increase with rising temperature and.pressure,respectiv.ly. The partition coefficient is d.stinctly d.fferent for d.fferent melt compositions. The rare earth elements become more enriched.in amphibole if the quenched.glas

关键词： Amphibole Silicate glass Trace elements Partition coefficients Lattice strain mod.l