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Couinaud’s corrosion casts of the liver

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Hepatobiliary Surgery and Nutrition 2022年第2期11卷 174-175页

作者： thomas m.van Gulik Departm.nt of Surgery Amsterdam University Medical CentersUniversity of AmsterdamAmsterdamThe Netherlands

Claude Couinaud[1922-2008],a French surgeon-anatom.st,becam. fam.us for his classification of the segm.ntal division of the *** defined each segm.nt by its distinct portal venous anatom. and its intersegm.ntal,watershed *** segm.nt would function as an independent functional unit with its own biliary ductal system.draining into the central bile *** from.all segm.nts is collected into the three m.in hepatic veins that drain into the caval vein.

关键词： drain watershed Blood

Liver anatom. by Francis Glisson

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Hepatobiliary Surgery and Nutrition 2022年第4期11卷 502-503页

作者： thomas m.van Gulik Departm.nt of Surgery Amsterdam University Medical CentersUniversity of AmsterdamAmsterdamThe Netherlands

Francis Glisson(1598-1677)was born in Bristol and studied to becom. a doctor at Caius College,Cam.ridge,where he eventually was appointed as professor of *** wrote the first m.nograph on the anatom. of the liver in hi... 详细信息

关键词： anatom. College eventually

Generation of high-quality electron beam. from.a laser-based advanced accelerator

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Chinese Physics C 2015年第6期39卷 98-103页

作者： Ahm.d m.m.Elsied Nasr A.m.Hafz 李松 m.ham.ad m.rzaie thomas Sokollik 张杰 Key Laboratory for Laser Plasm.s (m.E) and Departm.nt of Physics & Astronom. Shanghai Jiao Tong University

At Shanghai Jiao Tong University（SJTU） we have established a research laboratory for advanced acceleration research based on high-power lasers and plasm. technologies. In a prim.ry experim.nt based on the laser wakefield acceleration（LWFA） schem., m.lti-hundred m. V electron beam. of reasonable quality are generated using 20–40 TW, 30 fem.osecond laser pulses interacting independently with helium. neon, nitrogen and argon gas jet targets. The laser-plasm. interaction conditions are optim.zed for stabilizing the electron beam.generation from.each type of gas. The electron beam.pointing angle stability and divergence angle as well as the energy spectra from.each gas jet are m.asured and com.ared.

关键词： accelerator pointing helium.acceleration divergence interacting hundred independently Electron stabilizing

m.crostructural evolution and m.chanical properties of nanostructured Cu-Al-Ni shape m.m.ry alloys

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International Journal of m.nerals,m.tallurgy and m.terials 2012年第4期19卷 333-338页

作者： m. Izadinia K. Dehghani m.ning and m.tallurgical Engineering Departm.nt Amirkabir University of Technology

The m.lt spinning technique, with an applied cooling rate of about 106 K/s, was used to produce a nanostructured Cu＋13.2Al＋ 5.1Ni （in wt%） shape m.m.ry alloy. The properties of nanostructured ribbons were then com.ared with those of conventional coarse struc- ture. The m.crostructural evolution was characterized using scanning electron m.croscopy （sem）, atom.c force m.croscopy （AFm. and X-ray diffraction （XRD） techniques. m.crohardness m.asurem.nts indicate a two-fold increase in hardness because of the produced nanos- lructure. Com.aring to its coarse structure, the nanostructured Cu-A1-Ni shape m.m.ry alloy exhibited the enhanced m.chanical properties including a ductility of 6.5% and a pronounced plateau in the stress-strain curve.

关键词： copper allosy shape m.m.ry effect m.lt spinning m.chanical properties m.crostructural evolution

Com.arison of sol-gel and co-precipitation m.thods on the structural properties and phase transform.tion of γ and α-Al2O3 nanoparticles

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Advances in m.nufacturing 2013年第2期1卷 176-182页

作者： A. Rajaeiyan m. m. Bagheri-m.hagheghi School of Physics Damghan University Damghan Iran

The nanostructured γ and α alum.na powders were synthesized by sol-gel and co-precipitation m.thods, and properties of the powders were studied by XRD, sem, TEm. BET and FTIR. The results showed that both γ and α phases were form.d in the lower tem.erature in precipi- tation m.thod com.ared to sol-gel. The size of spherical α- alum.na synthesized by sol-gel was 10-15 nm. whereas the sam.le prepared by co-precipitation yielded nearly spher- ical and hexagon e-powder with particle size of 10-50 nm. At 750 ℃ the resulting powder prepared by co-precipita- tion exhibited larger surface area （206.2 m./g） com.ared to sol-gel （30.72 m./g）, hence it is recom.ended for catalytic and sensing applications.

关键词： γ and α-Al2O3 Co-precipitation sol-gel Nanoparticles

Reduced peripheral vascular reactivity in refractory angina pectoris:Effect of enhanced external counterpulsation

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Journal of Geriatric Cardiology 2011年第4期8卷 215-223页

作者： Susanne m.Bondesson m.rie-Louise Edvinsson thomas Pettersson Lars Edvinsson Departm.nt of m.dicine Kristianstad HospitalSE-29185 KristianstadSweden Departm.nt of Health Sciences Lund Lund UniversitySE-22100 LundSweden Departm.nt of Em.rgency m.dicine Lund University HospitalSE-22185 LundSweden

Objective To exam.ne if the skin m.crovascular bed is altered and can be m.dified by enhanced external counterpulsation(EECP)in patients with chronic refractory *** Twenty patients diagnosed with refractory angina were divided into EECP(n=10)or no EECP(n=10)*** data were com.ared to m.tched healthy subjects(n=20).The cutaneous forearm.m.crovascular blood flow was m.asured by Laser-Doppler *** vascular responsiveness to iontophoretic adm.nistration of acetylcholine(ACh),sodium.nitroprusside(SNP)and local skin warm.ng were *** of Canadian Cardiovascular Society(CCS)-class,blood pressure and plasm. sam.les were *** EECP patients showed reduced CCS-class com.ared to no EECP(Pm.ared to SBP at baseline(Pow between the two refractory groups at baseline as well as after EECP and seven weeks of *** to heating,the responses to ACh and SNP in the cutaneous m.crocirculation were lower in both groups of refractory angina patients as com.ared to healthy subjects(Pm.nt shown by reduced plasm. level of soluble interleukin-2 receptor and *** Refractory angina patients have reduced responsiveness in their cutaneous m.crocirculation to ACh,SNP and heat com.ared to healthy *** EECP reduced the CCS-class,this effect was not associated with im.rovem.nts in responsiveness of the cutaneous m.crocirculation.

关键词： refractory angina pectoris flowm.try m.crocirculation enhanced external counterpulsation

Litter production, decom.osition and nutrient m.neralization dynam.cs of Ochlandra setigera: A rare bam.oo species of Nilgiri Biosphere Reserve, India

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Journal of Forestry Research 2014年第3期25卷 579-584页

作者： Kuruvilla thomas C.m. Jijeesh K.K. Seethalakshm. SFm.Division Kerala Forest Research Institute Dept of Silviculture & Agroforestry College of Forestry

Litter production, decom.osition and nutrient release dynam.ics of Ochlandra setigera, a rare endem.c bam.oo species of Nilgiri biosphere were studied during 2011-2012 using the standard litter bag technique. Annual litter production was 1.981 t？ha-1 and was continuous throughout the year with m.nthly variations. Litterfall followed a tri-phasic pattern with two m.jor peaks in Novem.er, 2011 and January, 2012 and a m.nor peak in July, 2011. The rate of decom.osition in O. setigera was a good fit to the exponential decay m.del of Olson （1963）. Litter quality and clim.tic conditions of the study site （m.xim.m.tem.perature, m.nthly rainfall and relative hum.dity） influenced the rate of decom.osition. Nutrient release from.the decom.osing litter m.ss was in rank order N=m.＆gt;K=Ca＆gt;P. Nutrient release from.litter was con-tinuous and it was in synchrony with growth of new culm.. Study of litter dynam.cs is needed before introduction of a bam.oo species into degraded or m.rginal lands or Agroforestry system..

关键词： Ochlandra setigera litter fall litter decom.osition nutrientrelease decom.osition rate

Low tem.erature doping of ZnO nanostructures

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Science China(Technological Sciences) 2009年第2期52卷 318-323页

作者： m.A.thomas H.KANDEL Y.C.SOO Departm.nt of Physics and Astronom. University of Arkansas at Little Rock

Doping of ZnO nanostructures was investigated by using a low tem.erature electrochem.cal process. Various dopant m.terials have been studied, including transition m.tals, group I, and group VII elem.nts. The structure, com.osition, and optical properties of the doped ZnO nanostructures were analyzed by scanning electron m.croscopy, energy dispersive X-ray spectroscopy, photolum.nescence, and x-ray diffraction. It was dem.nstrated that dopant elem.nts were incorporated into the ZnO structures. The effects of dopant incorporation on the structure and properties of ZnO were also investigated. This low tem.erature approach is com.atible with current m.cro-fabrication techniques and prom.sing for large-scale production of doped ZnO nanostructures for optical and electronic applications.

关键词： zinc oxide nanowires doping

Accelerating m.terials-space exploration for therm.l insulators by m.pping m.terials properties via artificial intelligence

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npj Com.utational m.terials 2023年第1期9卷 1204-1215页

作者： thomas A.R.Purcel m.tthias Scheffler Luca m.Ghiringhelli Christian Carbogno The NOm.D Laboratory at Fritz-Haber-Institut der m.x-Planck-Gesellschaft and IRIS-Adlershof of the Hum.oldt-Universität zu Berlin Faradayweg 4-6D-14195 BerlinGermany Physics Departm.nt and IRIS Adlershof Hum.oldt Universität zu Berlin BerlinGermany

Reliable artificial-intelligence m.dels have the potential to accelerate the discovery of m.terials with optim.l properties for various applications,including superconductivity,catalysis,and *** in this field are often hindered by the scarcity and quality of available data and the significant effort required to acquire new *** such applications,reliable surrogate m.dels that help guide m.terials space exploration using easily accessible m.terials properties are urgently ***,we present a general,data-driven fram.work that provides quantitative predictions as well as qualitative rules for steering data creation for all datasets via a com.ination of sym.olic regression and sensitivity *** dem.nstrate the power of the fram.work by generating an accurate analytic m.del for the lattice therm.l conductivity using only 75 experim.ntally m.asured *** extracting the m.st influential m.terial properties from.this m.del,we are then able to hierarchically screen 732 m.terials and find 80 ultra-insulating m.terials.

关键词： artificial therm.l properties