Diffusivity

A major feature of public sector accounting reform has been the replacement of conventional cash-based accounting with accrual accounting. Even though accrual accounting is a regular practice in the private sector, little is known about the way in which these practices are diffused throughout large and complex public sector organisations. This thesis relies on Rogers’ (1983) Diffusion of an Innovation Theory (DOI) to explore the diffusion of accrual accounting across the three-tiered (Central - Provincial - Local) government of Sri Lanka.

254p runthenight04 02-02-2023 9 3   Download

Modelling the diffusion of mobile commerce in a country is a difficult task due to the non-linear, complex and uncertain nature of its operating environment. Conventional analytical techniques are of limited use in this context, and a System Dynamics approach is more appropriate to model such a complex system.

295p runthenight04 02-02-2023 8 3   Download

Purpose: The purpose of thesis is to study the influence of temperature, pressure and dopant on the diffusion coefficient and ionic conductivity of the bulk material as CeO2, c-ZrO2, YDC and YSZ. For YDC and YSZ thin films, we find the thickness dependence of the lattice constant, diffusion coefficient and ionic conductivity

28p tunelove 10-06-2021 12 3   Download

Nanocomposite material LiFe1-xMxPO4/Gr was successfully synthesized achieving it with single phase. It’s response required electrochemical parameters of positive electrode materials for Li-ion batteries such as: improved diffusion coefficient and conductivity, higher capacity comparative with LFP in same conditional synthesis.

28p capheviahe26 25-01-2021 22 3   Download

Determine the coefficient of water permeability, waterproofing marks, chloride ion diffusion coefficients of some types of concrete commonly used in bridge construction subjected to pre-compressive and direct-compression loads. Develop a predictive model for life expectancy using reinforced concrete bridges taking into consideration the effect of the load according to the criteria of initial corrosion of reinforcement in concrete. Application of life expectancy for the structure of reinforced concrete bridges.

27p kequaidan7 01-09-2020 30 2   Download

A simplified procedure of lock-in thermography was developed and applied for characterization of nuclear materials. The possibility of thickness and thermal diffusivity measurements with the accuracy better than 90% was demonstrated with different metals and Zircaloy-4 claddings.

5p christabelhuynh 30-05-2020 8 2   Download

When boron carbide is used as a neutron absorber in nuclear power plants, large quantities of helium are produced. To simulate the gas behaviour, helium implantations were carried out in boron carbide. The samples were then annealed up to 1500 °C in order to observe the influence of temperature and duration of annealing.

8p christabelhuynh 31-05-2020 14 2   Download

The goal of this study is to look after the amount of information that is mandatory to get a relevant parameters optimisation by data assimilation for physical models in neutronic diffusion calculations, and to determine what is the best information to reach the optimum of accuracy at the cheapest cost.

8p christabelhuynh 31-05-2020 17 2   Download

This work aims at determining the key parameters controlling the average oxygen profile within the sample in the two-phase regions at 1200 °C. High temperature steam oxidation tests interrupted by water quench were performed using pre-hydrided Zircaloy-4 samples.

8p christabelhuynh 30-05-2020 10 0   Download

In this study, COMAC nuclear data uncertainties have been propagated on the BEAVRS benchmark using a two-step APOLLO2/CRONOS2 scheme, where APOLLO2 is the lattice code used to resolve Boltzmann equation within assemblies using a high number of energy groups, and CRONOS2 is the code resolving the 3D full core diffusion equation using only four energy groups.

6p christabelhuynh 29-05-2020 11 2   Download

The problem of thermoelastic nanoscale beam based on a modified couple stress theory with diffusion subjected to ramp type heating is investigated. The Laplace transform technique and eigen value approach are applied to solve the equations which are written in the dimensionless form.

14p tohitohi 19-05-2020 17 2   Download

The article is devoted to some aspects of research of hostile environment influence on the concrete durability. The mechanism of formation of chaotically diversified difficult structure is described. Chemical interactions of cement with active components of diffusion in steam space are examined.

7p tohitohi 19-05-2020 14 1   Download

Aim of the thesis: Describe the imaging characteristics of the neural tract lesions in DTI inischemic stroke patients compared to normal people. Estimate the relation between some DTI indexs to motor function in ischemic stroke patients.

27p slimzslimz 21-12-2019 15 5   Download

The main results and new points of this thesis are: The effective emissivity of the diffuse and isothermal cylindrical - inner - cone cavity has been calculated using the polynomial interpolation technique for the angle factor integrals describing the radiation exchange inside the cavity. The interpolation - calculated results are approximately accurate in comparison with those obtained by the analytical methods. This approach is a rather new in the practice of cavity effective emissivity calculation.

14p xacxuoc4321 08-07-2019 35 4   Download

In  Molecular simulation of nanoparticle diffusion at fluid interfaces molecular dynamics simulations are used to exam- ine the transport properties of a nanoparticle in both bulk solvent and at a liquid–liquid interface. Specifically it aims to address the effect of interfacial adsorption on the diffusion of nanoparticles (at low concentration).

5p hoquangbio 22-07-2015 27 2   Download

Ethanolic and aqueous (hot and cold) extracts of the fruit pulp, stem bark and leaves of Tamarindus indica were evaluated for antibacterial activity, in vitro, against 13 Gram negative and 5 Gram positive bacterial strains using agar well diffusion and macro broth dilution techniques, simultaneously.

12p tanbnhp 22-03-2014 47 6   Download

Nguyên nhân chưa rõ ràng. - Tự miễn/Collagenosis. - Xơ tắc mao mạch. - Da: Mất T/c chun → thay bằng xơ. - Nội tạng: Bị - Toàn thân: Nặng, tử vong. Phân loại 1. Khu trú (Localized scleroderma). a) Morphe. b) Generalized morphea. c) Linera scleroderma. 2. Toàn thể (systemic scleroderma) a) Limited scleroderma (lSSc). b) Diffuse scleroderma (dSSc)

15p badaohatgao 28-05-2013 51 3   Download

Strong increase in the production of genetically modified organisms (GMOs) observed over the years has led to a consolidation of transgenic seed industries worldwide. The dichotomy between the evaluated risk and the perceived risk of transgenic use has defined their level of acceptability among different global societies. GMOs have been widely applied to agricultural commodities, among them the Roundup Ready™ (RR™) soybean line GTS 40-3-2 has become the most prevalent transgenic crop in the world.

9p zingzing09 24-04-2013 47 4   Download

OprM, the outer membrane component of the MexAB-OprM multidrug efflux pump ofPseudomonas aeruginosa, hasbeenassumed to facilitate the export of antibiotics across the outer membrane of this organism. Here we purified to homogeneity the OprM protein, reconstituted it into lipo-somemembranes, and tested its channel activitybyusing the liposome swellingassay. Itwas demonstrated thatOprMis a channel-forming protein and exhibits the channel property that amino acids diffuse more efficiently than saccharides....

8p research12 23-04-2013 40 4   Download

FhuA is amultifunctional protein in the outer membrane of Escherichia colithat actively transports [Fe 3+ ]ferrichrome, the antibiotics albomycin and rifamycin CGP 4832, and mediates sensitivity of cells to the unrelated phages T5, T1, /80 and UC-1, and to colicin M and microcin J25. The energy source of active transport is the proton motive force of the cytoplasmic membrane that is required for all FhuA functions except for infectionbyphageT5.

12p tumor12 22-04-2013 39 2   Download