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Nutrient changes in potting mix and Eucalyptus nitens leaf tissue under macadamia biochar amendments

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Journal of Forestry Research 2018年第2期29卷 379-389页

作者： A.Wrobel-Tobiszewska M.boersma J.sargison P.Adams b.singh s.Franks C.J.birch D.C.Close CREPs Centre for Renewable Energy and Power SystemsSchool of Engineering and ICTUniversity of TasmaniaEngineering BuildingDobson RoadSandy Bay CampusHobartAustralia Tasmanian Institute of Agriculture University of Tasmania16-20 Mooreville RoadPO Box 3523Burnie 7320Australia JsA Consulting Engineers Pty Ltd Ellerslie HouseLevel 1119 Sandy Bay RoadSandy BayTAS 7005Australia Forestry Tasmania 79 Melville StreetHobartTAS 7000Australia Faculty of Agriculture and Environment Center for CarbonWater and FoodBiomedical BuildingUniversity of SydneyCamperdownNSW 2006Australia

The effect of macadamia nut shell biochar on nitrogen,potassium,phosphorus,magnesium,calcium and sodium concentrations in potting mix used to grow Eucalyptus nitens seedlings was investigated in a glasshouse *** treatments combined two fertiliser rates（50 and 100% rate of the commercial mix commonly used in forestry nurseries） with eight biochar rates(0,2,5,10,20,50,80 and 100 t ha;) arranged in a randomised complete block with three replicates of four sample *** were quantified in the potting mix and seedling leaves at four destructive harvests 135,177,219 and269 days after *** significantly increased nitrate-N,Colwell P,Colwell K and exchangeable Na andreduced ammonium-N,Mg and Ca concentrations in the potting *** leaf concentrations of P,K and Na were increased by biochar application,while N remained dependent on fertiliser rate *** and Ca leaf concentrations decreased in response to increasing biochar *** nitrate-N and decreased ammonium-N concentrations suggest that biochar might have increased nitrification in the potting *** presumed that biochar mediated processes that reduced uptake of P and K when high doses of biochar were combined with full *** in potting mix K,Na,Mg and Ca were consistent with selective adsorption of ions to biochar surfaces.

关键词： Charcoal Forest plantation Plant nutrition seedlings soil chemistry

Restructuring of plasmonic nanoparticle aggregates with arbitrary particle size distribution in pulsed laser fields

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Chinese Physics b 2016年第11期25卷 563-570页

作者： A E Ershov A P Gavrilyuk s V Karpov s P Polyutov Institute of Computational Modeling Russian Academy of SciencesKrasnoyarsk 660036Russia L.V.Kirensky Institute of Physics of the Russian Academy of sciences Krasnoyarsk 660036Russia siberian Federal University Krasnoyarsk 660028Russia siberian state Aerospace University Krasnoyarsk 660037Russia

We have studied processes of interaction of pulsed laser radiation with resonant groups of plasmonic nanoparticles（resonant domains） in large colloidal nanoparticle aggregates having different interparticle gaps and particle size *** processes are responsible for the origin of nonlinear optical effects and photochromic reactions in multiparticle *** describe photo-induced transformations in resonant domains and alterations in their absorption spectra remaining after the pulse action,we introduce the factor of spectral *** on calculation of changes in thermodynamic,mechanical,and optical characteristics of the domains,the histograms of the spectrum photomodification factor have been obtained for various interparticle gaps,an average particle size,and the degree of *** in spectra have been analyzed depending on the intensity of laser radiation and various combinations of size characteristics of *** obtained results can be used to predict manifestation of photochromic effects in composite materials containing different plasmonic nanoparticle aggregates in pulsed laser fields.

关键词： resonant arbitrary pulsed dipole manifestation alterations extinction remaining aggregate colloidal

7.0 T MR光谱成像可检测到与多发性硬化残疾相关的广泛脑病理改变

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国际医学放射学杂志 2022年第3期 359-360页

作者： E.Heckova A.Dal-bianco b.strasser G.J.Hangel A.Lipka s.Motyka 陈靖

摘要 MR光谱成像(MRsI)可行脑代谢的体内评估，尤其应用于多发性硬化(Ms)，其中形态学MRI无法描述疾病活动的主要部分。目的评估7.0 T MRsI描述和可视化正常

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计算机导航辅助全膝关节置换术与传统手术的结果比较:一项双中心对照回顾性临床研究

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中华医学杂志 2022年第1期102卷 35-35页

作者： Zampogna b Campi s Torre G 何宜蓁(编译) 王鑫光(编译) 田华(编译) 不详北京大学第三医院骨科

在过去的几十年里,全膝关节置换术(TKA)被认为是减轻重度骨关节炎等患者疼痛和恢复其关节功能的有效解决方案,因此TKA越来越普遍。然而,仍有20%左右的患者TKA术后不满意。假体安放的精准性仍被认为是改善患者术后临床功能和提高术后患... 详细信息

在过去的几十年里,全膝关节置换术(TKA)被认为是减轻重度骨关节炎等患者疼痛和恢复其关节功能的有效解决方案,因此TKA越来越普遍。然而,仍有20%左右的患者TKA术后不满意。假体安放的精准性仍被认为是改善患者术后临床功能和提高术后患者满意度的关键因素之一。其中,计算机导航辅助(CAs)TKA被认为可辅助临床医师进行更为精准的假体安放。

关键词：临床功能临床医师传统手术回顾性临床研究全膝关节置换术 TKA 患者满意度计算机导航辅助

112例间质性肺病的超高分辨CT成像：光子计数CT的价值

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国际医学放射学杂志 2023年第5期 625-626页

作者： Y.Gaillandre A.Duhamel T.Flohr J.b.Faivre s.Khung A.Hutt 胡中盟

摘要目的比较采用光子计数CT(PCCT)超高分辨（UHR）影像与采用能量整合探测器CT(EID-CT)高分辨（HR）CT的肺实质影像。方法 112例病情稳定的间质性肺疾病（ILD）病

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Calculation and Analysis of Velocity and Viscous Drag in an Artery with a Periodic Pressure Gradient

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Chinese Journal of Mechanical Engineering 2012年第4期25卷 715-721页

作者： ALIZADEH M sEYEDPOUR s M MOZAFARI V bAbAZADEH shayan s Department of Mechanical Engineering Iran University of Science and TechnologyTehranIran Department of Mechanical Engineering Islamic Azad University of Science and ResearchTehranIran Department of Mechanical Engineering Tarbiat Modares UniversityTehranIran

blood as a fluid that human and other living creatures are dependent on has been always considered by scientists and *** changes in blood pressure and its normal velocity can be a sign of a *** significant in blood fluid＇s mechanics is Constitutive equations and finding some relations for analysis and description of drag,velocity and periodic blood pressure in *** this paper,by considering available experimental quantities,for blood pressure and velocity in periodic time of a thigh artery of a living dog,at first it is written into Fourier series,then by solving Navier-stokes equations,a relation for curve drawing of vessel blood pressure with rigid wall is *** in another part of this paper,vessel wall is taken in to consideration that vessel wall is elastic and its pressure and velocity are written into complex Fourier *** this case,by solving Navier-stokes equations,some relations for blood velocity,viscous drag on vessel wall and blood pressure are *** this study by noting that vessel diameter is almost is large（3.7 mm）,and blood is considered as a Newtonian ***,available experimental quantities of pressure with obtained curve of solving Navier-stokes equations are *** blood analysis in rigid vessel,existence of 48% variance in pressure curve systole peak caused vessel blood flow analysis with elastic wall,results in new relations for blood flow *** Resultant curve is obtained from new relations holding 10% variance in systole peak.

关键词： artery newtonian fluid rigid & elastic wall newtonian fluid

Effect of Notch Location on Fatigue Life Prediction of strength Mismatched HsLA steel Weldments

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Journal of Materials science & Technology 2004年第2期20卷 129-135页

作者： s.Ravi V.balasubramanian s.Nemat Nasser Department of Manufacturing Engineering Annamalai University Annamalainagar-608 002. Tamil Nadu IndiaDepartment of Manufacturing Engineering Annamalai University Annamalainagar-608 002. Tamil Nadu IndiaCentre of Excellence for Advanced Materials University of California at San Diego La Jolla CA 92093-0416 USA

Welding of high strength low alloy steels (HsLA) involves usage of low, even and high strength filler materials (electrodes) than the parent material depending on the application of the welded structures and the availability of the filler material. In the present investigation, the fatigue crack growth behaviour of weld metal (WM) and heat affected zone (HAZ) regions of under matched (UM), equal matched (EM) and over matched (OM) joints has been studied. The base material used in this investigation is HsLA-80 steel of weldable grade. shielded metal arc welding (sMAW) process has been used to fabricate the butt joints. Centre cracked tension (CCT) specimen has been used to evaluate the fatigue crack growth behaviour of the welded joints. Fatigue crack growth experiments have been conducted using servo hydraulic controlled fatigue testing machine at constant amplitude loading (R=0).A method has been proposed to predict the fatigue life of HsLA steel welds using fracture mechanics approach by incorporating influences of mismatch ratio (MMR) and notch location.

关键词： shielded metal arc welding High strength low alloy steel Mismatch ratio Notch location Fatigue crack growth Fatigue life

A nanostructured copper telluride thin film grown at room temperature by an electrodeposition method

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Journal of semiconductors 2012年第9期33卷 22-27页

作者： s.s.Dhasade s.H.Han V.J.Fulari Holography and Material Research Laboratatory Department of PhysicsShivaji UniversityKolhapur 416004India Department of Chemistry Hanyang UniversitySouth Korea

Copper telluride onion flower like microstructures, constructed by quantum dots with various diameters, were obtained by a potentiostatic electrodeposition method at room temperature. The structural, optical, surface morphology, compositional analysis and Raman spectra properties of the deposited films have been studied using X-ray diffraction, optical absorption with scanning electron microscopy, EDAX, and Raman spectroscopy, The electrolyte concentration and deposition time can be used to control the diameter of the electrodeposited quantum dots to within a range of 50-55 nm. The films are found to be stoichiometric in composition. The optical constants such as the optical band gap energy and the optical absorption spectra show significant variation in their values with a change in deposition time. Upon deposition time the band gap energy increased from a value of 2.74 to 2.89 eV.

关键词： electrodeposition copper telluride quantum dots chemical composition optical properties

Viscoelastic behavior of nanotube-filled polycarbonate:Effect of aspect ratio and interface chemistry

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International Journal of smart and Nano Materials 2010年第1期1卷 53-68页

作者： Renée K.Duncan R.Qiao J.b.bult D.burris L.C.brinson L.s.schadler Department of Materials science and Engineering Rensselaer Polytechnic InstituteTroyNYUSA Department of Mechanical Engineering Northwestern UniversityEvanstonILUSA Department of Mechanical Engineering University of DelawareNewarkDEUSA

A combined experimental and modeling study on the solid-state rheology of multi-walled carbon nanotube(MWNT)/polycarbonate composites as a function,independently,of MWNT aspect ratio and interface chemistry was carried *** aspect ratio nanotubes lead to greater broadening of the loss modulus peak in frequency space,but there was no effect of aspect ratio on the glass transition *** breadth of the loss modulus peak was found to correlate with the free space parameter,a measure of the spacing between the MWNTs.A new model that accounts for the aspect ratio and distribution in a representative volume element was developed to study these parameters in a controlled setting where morphology was precisely *** modeling was found to correlate well with experimental *** results shed light on the separate impacts of aspect ratio,dispersion,and interface modification on the solid-state rheology of nanofilled polymers.

关键词： polymer composite material nanotube dynamic mechanical analysis aspect ratio rheology