Establishing A Global Algorithm For Water Quality Mapping From Multi-Dates Images.

Water quality assessment of ocean and inland waters using satellite data has been carried out since the first r satellite Landsat-MSS has been operational (Thiemann and Kaufmann, 2000)

Elastic Scattering Phenomenology

We argue that, in many situations, fits to elastic scattering data that were historically, and frequently still are, considered “good”, are not justifiably so describable. Information about the dynamics of nucleon-nucleus and nucleus-nucleus scattering is lost when elastic scattering phenomenology is insufficiently ambitious. It is argued that in many situations, an alternative approach is appropriate for the phenomenology of nuclear elastic scattering of nucleons and other light nuclei. The approach affords an appropriate means of evaluating folding models, one that fully exploits available empirical data. It is particularly applicable for nucleons and other light ions

Properties of Cement Brick Containing Expanded Polystyrene Beads (EPS) And Palm Oil Fuel Ash (POFA)

This paper assesses the mechanical properties of cement brick containing Expanded Polystyrene Beads (EPS) and Palm Oil Fuel Ash (POFA) as partial replacement of sand and Ordinary Portland Cement (OPC). The aim of this research are to determine the mechanical properties of brick containing EPS and POFA as partial replacement of sand and OPC. The dosage for EPS replacement is 20%, 30%, 40% and 50% EPS whereas 5%, 10%, 15%, 20% and 25% of POFA replacement. The mechanical properties of the bricks are density, compressive strength and water absorption. The bricks with 30%, 40% and 50% EPS replacement have density below 1680 kg/m3 which considered as lightweight brick. The brick with 50% EPS replacement recorded lowest density which is 1328 kg/m3 while 1629 kg/m3 for the brick with  25% POFA replacement at 56-days of curing. The water absorption testing for these brick are between 7.20%-18.19%. Brick with 0% POFA and 50% EPS replacement has the lowest water absorption properties whereas brick with 25% POFA and 0% EPS replacement has the highest water absorption properties

Setaria viridis (L.) P.Beauv. (BR0000011613954)

Belgium Herbarium image of Meise Botanic Garden

Application of GIS-planning decision support system in predicting development impact assessment

Impact of development is a major issue of global environment change. The modelling and projecting of development are essential to the assessment of consequent environmental impacts. Thus, this research was conducted to develop a customised modelling system that integrates the strength of GIS in supporting planning decision making process via prediction of development impact assessment for various projects. It is in this respect that a prototype of GIS-based modelling that enables to anticipate developmentenvironmental impacts at an early stage of project planning has been established. It encompasses some selected key components of environment, economy and social, building up the system called e-Development Impact Assessment (e-DIA). The design principle was to extend the functionality of a GIS system in facilitating planning decision support making process. An integrated subsystem of e-DIA allows the analysis of environmental, social and economic dimensions to generate the results of impacts of proposed development in the form of spatial and textual data. In terms of environmental impact assessment, e-DIA acts as a screening/scoping utility which may indicate the potential impacts of a set of pre-determined environmental impacts. For social and economic impact assessments, the e-DIA computes the outcome of future demand for social facilities, future employment opportunity and parking requirement

Experimental investigation of aerodynamic performances on a rotating cylinder with surface roughness using light weight smart motor (LWSM)

1673-1681A critical adjustment was established by the attachment of the lightweight smart motor (LWSM) to an open circuit wind tunnel in order to determine lift and drag forces. LWSM rotated efficiently and the system can assemble and dissemble various cylinders with complete control, in comparison to other approaches available in the literature. The results of the experiment displayed accurate measurements of lift and drag. Research was performed with a free stream velocity of a wind tunnel within a range of 0.65&lt;U∞<13.21 m/s for a flow over a two-dimensional rotating cylindrical object; with roughness variation at 5.0µm&lt;Ra<77µm and circumferential velocity of the cylinder at range 0<∝<6 rad/s. It was found that the implementation of LWSM can measure forces in various rotating speed with less vibrating effect

Determination of trace concentration of uranium in soils by the nuclear track technique

Consiglio Nazionale delle Ricerche - Biblioteca Centrale - P.le Aldo Moro, 7, Rome / CNR - Consiglio Nazionale delle RichercheSIGLEITItal

Investigation of inelastic \mth{\alpha}-scattering on \chem{^{24}Mg} and \chem{^{28}Si}

Effects of three different $\alpha$-nucleus potentials, the normal Woods-Saxon (WS), the squared WS and the molecular, have been studied using the differential cross-section data of inelastically scattered $\alpha$-particles on \chem{^{24}Mg} and \chem{^{28}Si} at 54 and 26 MeV incident energies, respectively. The angular distributions of inelastic scattering to the first $2^+$ and $4^+$ states of the two nuclei have been analyzed in terms of a coupled-channel formalism. The macroscopic rotational model using both the squared WS and the molecular potentials can produce satisfactorily a simultaneous description of the elastic data and the inelastic-scattering data of the $2^+$ and $4^+$ states for both the targets. The normal WS potential fails to describe the elastic and inelastic data, simultaneously. The effects of second-order deformed potential are also investigated. Microscopic coupled-channel calculations, using the $0^+$-$2^+$ coupling and the Gaussian $\alpha$-nucleon interaction in the form-factor, have also been performed for the \chem{^{28}Si} target using both the squared WS and molecular potentials, the latter one giving a reasonable description of the data

Investigation of \mth{\alpha}-nucleus interaction in the \chem{^{27}Al(\alpha,\alpha)^{27}Al} scattering and \chem{^{27}Al(\alpha,d)^{29}Si} reaction

Full finite-range macroscopic calculations in the distorted-wave Born approximation have been performed using the molecular and Michel $\alpha$-nucleus potentials to analyze the angular distributions of cross-sections of the $^{27}$Al($\alpha,d$)$^{29}$Si reaction, at 26.5 and 27.2 MeV incident energies, leading to seven transitions up to the excitation energy $E_{\rm X} = 4.08$ MeV of the final nucleus. The parameters of the two types of the $\alpha$-nucleus potentials are determined from the elastic-scattering data. Both the molecular and Michel potentials, without any adjustment to the parameters needed to fit the elastic-scattering data, are able in most cases to reproduce, simultaneously, the absolute cross-sections particularly at large angles, where the previous calculations failed to reproduce by orders of magnitude, and the gross pattern of angular distributions of the reaction. The deuteron-cluster spectroscopic factors for most of the seven transitions, deduced using the two $\alpha$-$^{27}$Al potentials, differ from those obtained in earlier works. The spectroscopic factor for the ground-state transition, deduced in the present work for the 25.8 MeV data, agrees well with the shell model prediction

Application of polymeric nanofluid in enhancing oil recovery at reservoir condition

In this study, ascorbic acid was used to synthesize Cissus populnea nanoparticles (CPNP). The synthesized CPNP was isolated and the influence of the process variables on the physical properties were studied. The rheology of the formulated Cissus populnea nanofluid (CPNF) was measured and compared with Cissus populnea (CP) solution and commercial polymer xanthan. Moreover, the interfacial properties of CPNF were studied at various concentrations and temperatures, and the influence of salinity and their interaction with ultrasound was investigated. Sessile drop contact angle method was used to determine the wettability alteration efficiency of CPNF on an initially oil-wet sandstone core surface. Finally, CPNF and CP solutions were evaluated for EOR purposes at typical reservoir condition. The displacement process was scaled to reduce the number of parameters investigated using dimensionless parameters. The synthesis methods were efficient in generating sphere-shaped and elongated nanoparticles (50 nm mean diameter). Experimental results show that an increase in temperature of CP and CPNP yielded increased viscosity of the solutions in stark contrast to xanthan whose solution viscosity declines as the temperature increases. Besides, the CPNF was effective in lowering IFT at oil-water (O/W) interface and altered the wettability of the sandstone cores to water-wetting condition. The novel CPNF increased the oil recovery by 26% and was effective at high-temperature high-pressure (HTHP) reservoir condition. The result shows a transition from capillary dominated flow to gravity dominated flow as decrease in IFT decreased residual oil saturation and increased capillary and Bond number. The energy consumption and cost estimation of the proposed novel polymeric nanofluid shows it is cost-effective than conventional EOR chemicals