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Equations of Propagation of Uncertainty on the ITS-90 in the Sub-ranges from 13.8033 k to 933.473 k

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Chinese Physics Letters 2005年第3期22卷 558-560页

作者：康志茹傅广生 k.D.hill CollegeofPhysicsTechnology HebeiUniversityBaoding071002//HebeiProvincialInstituteofMetrologyShijiazhuang050051 CollegeofPhysicsTechnology HebeiUniversityBaoding071002 NationalResearchCouncilofCanada OttawaCanada

Based on implicit differentiation, we present the total differential of linear interpolation and the equation of propagation of uncertainty on the ITS-90 in any of the sub-ranges from 13.8033k to 933.473k. It is proven that the sensitivity coefficients of the linear interpolation are still linear combinations of the basis functions comprising the interpolation equation, only with different constants that can be presented in the determinant form. This solves the question to express the equation of propagation of uncertainty of a complex interpolation comprised of many different basic functions.

关键词： TS-90 Sub-ranges 13.8033k 933.473k

Fecal microbiome of growing pigs fed a cereal based diet including chicory(Cichorium intybus L.) or ribwort(Plantago lanceolata L.) forage

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Journal of Animal Science and Biotechnology 2016年第2期7卷 167-175页

作者： Johan Dicksved Janet k.Jansson Jan Erik Lindberg Department of Animal Nutrition and Management Swedish University of Agricultural Sciences Department of Microbiology Swedish University of Agricultural Sciences Division of Biology Earth and Biological Sciences Pacific Northwest National Laboratories

Background： The purpose of this study was to investigate how inclusion of chicory forage or ribwort forage in a cereal-based diet influenced the fecal microbial community（microbiome） in newly weaned（35 days of age） *** piglets were fed a cereal-based diet without（B） and with inclusion（80 and 160 g/kg air-dry forage） of vegetative shoots of chicory（C） and leaves of ribwort（R） forage in a 35-day growth trial. Fecal samples were collected at the start（D0）, 17（D17） and 35（D35） days after weaning and profiles of the microbial consortia were generated using terminal restriction fragment length polymorphism（T-RFLP）. 454-FLX pyrosequencing of 16 S r RNA gene amplicons was used to analyze the microbial composition in a subset of the samples already analyzed with ***： The microbial clustering pattern was primarily dependent on age of the pigs, but diet effects could also be observed. Lactobacilli and enterobacteria were more abundant at D0, whereas the genera Streptococcus, Treponema,Clostridium, Clostridiaceae1 and Coprococcus were present in higher abundances at D35. Pigs fed ribwort had an increased abundance of sequences classified as Treponema and a reduction in lactobacilli. however, the abundance of Prevotellaceae increased with age in on both the chicory and the ribwort diet. Moreover, there were significant correlations between the abundance of Bacteroides and the digested amount of galactose, uronic acids and total non-starch polysaccharides, and between the abundance of Bacteroidales and the digested amount of ***： This study demonstrated that both chicory and ribwort inclusion in the diet of newly weaned pigs influenced the composition of the fecal microbiota and that digestion of specific dietary components was correlated with species composition of the microbiota. Moreover, this study showed that the gut will be exposed to a dramatic shift in the microbial community structure several weeks after weaning.

关键词： Amplicon sequencing Chicory Microbiome Ribwort Uronic acid Weaning 16S

Recent advances and future directions in the management of knee osteoarthritis:Can biological joint reconstruction replace joint arthroplasty and when?

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World Journal of Orthopedics 2015年第9期6卷 655-659页

作者： Nikolaos k Paschos Department of Biomedical Engineering University of California

In this article, a concise description of the recent advances in the field of osteoarthritis management is presented. The main focus is to highlight the most promising techniques that emerge in both biological joint replacement and artificial joint arthroplasty. A critical view of high quality evidence regarding outcome and safety profile of these techniques is presented. The potential role of kinematically aligned total knee replacement, navigation, and robotic-assisted surgery is outlined. A critical description of both primary and stem cell-based therapies, the cell homing theory, the use of biologic factors and recent advancements in tissue engineering and regenerative medicine is provided. Based on the current evidence, some thoughts on a realistic approach towards answering these questions are attempted.

关键词： Osteoarthritis Biological joint reconstruction Total joint arthroplasty Cartilage Evidence-based

The use of environmentally sustainable bio-derived solvents in solvent extraction applications——A review

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Chinese Journal of Chemical Engineering 2016年第2期24卷 215-220页

作者： Zheng Li kathryn h.Smith Geoffrey W.Stevens Particulate Fluids Processing Centre Department of Chemical and Biomolecular EngineeringThe University of Melbourne

Replacement of volatile organic compounds （VOCs） by greener or more environmentally sustainable solvents is becoming increasingly important due to the increasing health and environmental concerns as well as economic pressures associated with VOCs. Solvents that are derived from biomass, namely bio-derived solvents, are a type of green solvent that have attracted intensive investigations in recent years because of their advantages over con- ventional VOCs, such as low toxicity, biodegradability and renewability. This review aims to summarize the use of bio-derived solvents in solvent extraction applications, with special emphasis given to utilization of biodiesels and terpenes. Compared with the conventional VOCs, the overall performance of these bio-derived solvents is comparable in terms of extraction yields and selectivity for natural product extraction and no difference was found for metal extraction. To date most researchers have focused on laboratory scale thermodynamics studies. Future work is required to develop and test new bio-derived solvents and understand the kinetic performance as well as solvent extraction nilnt nlant studies.

关键词： Solvent extraction Bio-derived solvents Green solvents Biodiesels Terpenes

Three-dimensional magneto-thermo-elastic analysis of functionally graded cylindrical shell

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Applied Mathematics and Mechanics(English Edition) 2017年第4期38卷 479-494页

作者： A. MEhDITABAR G.h. RAhIMI S. ANSARI SADRABADI Department of Mechanical Engineering School of Mechanical EngineeringTarbiat Modares UniversityTehran 14115-111Iran

The present paper presents the three-dimensional magneto-thermo-elastic analysis of the functionally graded cylindrical shell immersed in applied thermal and magnetic fields under non-uniform internal pressure. The inhomogeneity of the shell is assumed to vary along the radial direction according to a power law function, whereas Poisson＇s ratio is supposed to be constant through the thickness. The existing equations in terms of the displacement components, temperature, and magnetic parameters are derived, and then the effective differential quadrature method （DQM） is used to acquire the analytical solution. Based on the DQM, the governing heat differential equations and edge boundary conditions are transformed into algebraic equations, and discretized in the series form. The effects of the gradient index and rapid temperature on the displacement, stress components, temperature, and induced magnetic field are graphically illustrated. The fast convergence of the method is demonstrated and compared with the results obtained by the finite element method （FEM）.

关键词： magneto-thermo-elastic functionally graded material (FGM) cylindrical shell differential quadrature method (DQM)

Parameterization of the propeller thrust for modelling ship braking in ice channel behind icebreaker

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Transportation Safety and Environment 2023年第1期5卷 41-48页

作者： Vadim k.Goncharov Natalia Yu.klementieva Saint-Petersburg State Marine Technical University Saint-Petersburg190121Russia krylov State Research Centre Ice Basin LaboratorySaint-Petersburg196158Russia.

Cargo ship sailing within the ice channel that an assisting icebreaker tracks in the compact ice cover is the usual navigation practice for difficult ice conditions in freezing seas and Arcticwater *** the icebreaker or an ahead vessel stops before the insuperable ice obstacle or because of engine trouble,the danger of an emergency appears,namely of collision with the icebreaker or the ahead ship,if the interval between them is not sufficient for effective braking and *** paper presents the equation that describes the ship braking process within an ice channel and includes the thrust of the propeller that works under the reverse *** specific of this regime is the following:the ship continues the motion‘forwards’and the propeller rotates‘backwards’.An analytical method for description of the ship propeller work on the reverse regime is absent because of the detached flow on its *** paper describes the developed empirical method of this regime parameterization on the basis of serial models of propeller *** outcomes of this investigation are applied to a ship braking process simulation and the evaluation of the safe interval between the ship and the icebreaker.

关键词： ship braking ice channel propeller action curve advance thrust reverse regime

Numerical and analytical investigations of thermosolutal instability in rotating Rivlin-Ericksen fluid in porous medium with hall current

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Applied Mathematics and Mechanics(English Edition) 2013年第4期34卷 501-522页

作者： S.kUMAR V.ShARMA k.kIShOR Department of Mathematics Government College Department of Mathematics Himachal Pradesh University Department of Mathematics Government Senior Secondary School

Numerical and analytical investigations of the thermosolutal instability in a viscoelastic Rivlin-Ericksen fluid are carried out in the presence of a uniform vertical magnetic field to include the hall current with a uniform angular velocity in a porous medium. For stationary convection, the stable solute gradient parameter and the rota- tion have stabilizing effects on the system, whereas the magnetic field and the medium permeability have stabilizing or destabilizing effects on the system under certain condi- tions. The hall current in the presence of rotation has stabilizing effects for sufficiently large Taylor numbers, whereas in the absence of rotation, the hall current always has destabilizing effects. These effects have also been shown graphically. The viscoelastic effects disappear for stationary convection. The stable solute parameter, the rotation, the medium permeability, the magnetic field parameter, the hall current, and the vis- coelasticity introduce oscillatory modes into the system, which are non-existent in their absence. The sufficient conditions for the non-existence of overstability are also obtained.

关键词： magnetic field thermosolutal instability Rivlin-Ericksen rotating fluid hall current porous medium

Anisotropy in dynamic recrystallization behavior of AZ31 magnesium alloy

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Journal of Magnesium and Alloys 2022年第12期10卷 3470-3484页

作者： S.M.Fatemi S.kheyrabadi h.Paul Department of Metallurgy and Materials Engineering Shahid Rajaee Teacher Training University136-16785 TehranIran Institute of Metallurgy and Materials Science Polish Academy of Sciences(PAS)25 Reymonta Street30-059 KrakowPoland

Deformation behavior as well as microstructural evolutions of a rolled AZ31 magnesium alloy with and without pre-existing extension twins were studied using compression tests which performed along different orientations at a temperature range of 25–350 ℃. The results implied that the initial texture not only influence the evolution of flow stress, but also change the size and fraction of recrystallized *** contrast to samples parallel to rolling and transverse directions, compression along normal direction resulted in a respectful softening at 150 ℃. The largest size and fraction of new grains at 250 ℃ were recorded after deformation along rolling direction, while the maximum flow softening was observed during deformation along normal direction. The anisotropy in microstructural evolutions was still retained at 350 ℃. Pre-existing twins could reduce the anisotropy of material in respect of flow stress as well as DRX progression, where TD sample showed the lowest DRX fraction at 250 ℃. Quaternion misorientation data obtained from EBSD analysis of pretwinned material implied that initial texture could not significantly influence final texture. A different misorientation distribution was realized after deformation of pretwinned material along ND and RD directions.

关键词： Slip Recrystallization Grain size Growth Twin

Fluctuating hydrodynamic methods for fluid-structure interactions in confined channel geometries

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Applied Mathematics and Mechanics(English Edition) 2018年第1期39卷 125-152页

作者： Y. WANG h. LEI P.J. ATZBERGER Department of Mathematics University of California Santa Barbara Santa Barbara CA 93106 U. S. A. Pacific Northwestern National Laboratories Richland WA 99354 U. S. A.

We develop computational teractions subject to thermal fluctuations geometry. The methods take into account methods for the study of fluid-structure in- when confined within channels with slit-like the hydrodynamic coupling and diffusivity of microstructures when influenced by their proximity to no-slip walls. We develop stochas- tic numerical methods subject to no-slip boundary conditions using a staggered finite volume discretization. We introduce techniques for discretizing stochastic systems in a manner that ensures results consistent with statistical mechanics. We show how an exact fluctuation-dissipation condition can be used for this purpose to discretize the stochastic driving fields and combined with an exact projection method to enforce incompressibil- ity. We demonstrate our computational methods by investigating how the proximity of ellipsoidal colloids to the channel wall affects their active hydrodynamic responses and passive diffusivity. We also study for a large number of interacting particles collective drift-diffusion dynamics and associated correlation h/actions. We expect the introduced stochastic computational methods to be broadly applicable to applications in which con- finement effects play an important role in the dynamics of microstructures subject to hydrodynamic coupling and thermal fluctuations.

关键词： fluctuating Eulerian-Lagrangian method hydrodynamics immersed (SELM) ellipsoidal colloid boundary method stochastic mobility nanochannel