Metal (Cr, Co, Cu, Zn, Cd, Pb, Ni) and metalloid (As) accumulation was studied in roadside soil and wild rat (Rattus sp.) samples from near a Pb-Zn mine (Kabwe, Zambia) and the capital city of Zambia (Lusaka). The concentrations of the seven metals and As in the soil samples and Pb in the rat tissue samples were quantified using atomic absorption spectroscopy. The concentrations of Pb, Zn, Cu, ...

This paper presents the performance of a new, floating, mono-hull wind turbine installation vessel (Nordic Wind) in process. The can transport pre-assembled turbines from marshalling port to offshore site. Each assembled will be positioned over pre-installed floating spar structure. primary difficulty lies examining multibody system’s reactions when subjected combined wind, current, and wave fo...

There is a need for quantitative data on patterns and rates of movement of organisms to understand their movement behavior and predict their rates of spread. Opportunities for studying movement of biological control agents are presented during release programs. However, despite these opportunities, patterns and range of dispersal are often not considered. For example, information about effects ...

Changes in the aerodynamic characteristics of a site can have a major influence on the wind regime at the surface/air interface along a road which in turn has a local effect on road surface temperatures. Traditionally a parameter known as roughness length (Z0) is used as the primary measure of the aerodynamic roughness of a surface, but Z0 is notoriously difficult to estimate. This study takes ...

We present a novel method for analysing space-time data when response data is given at a nite number of locations and the aim is to predict the response at a new location, where only a short run of data is available. This is the type of dataset that is typically available when attempting to analyse wind velocity data and we demonstrate our method, and compare it to that introduced by Haslett an...

The correlation of northwest (NW) Pacific climate anomalies during summer with El Niño–Southern Oscillation (ENSO) in the preceding winter strengthens in the mid-1970s and remains high. This study investigates the hypothesis that the tropical Indian Ocean (TIO) response to ENSO is key to this interdecadal change, using a 21-member ensemble simulation with the Community Atmosphere Model, version...

The National Oceanic and Atmospheric Administration's (NOAA) National Data Buoy Center (NDBC) operates the Marine Observation Network (MON) for NOAA's National Weather Service (NWS). The MON is a network of land and buoy-based automated platforms that collect and report meteorological and oceanographic measurements and transmit these data in near real-time through the NOAA Geostationary Operati...

Results from a three-year study are presented that integrate field work (in Israel), physical modeling (wind-tunnel testing at UC Davis), and numerical solutions of grain trajectories to model and explain sand transport over a climbing dune. Field grain-size analyses of surfaceand saltation-trap materials taken along various positions of the slope suggest that only smaller particles (< 230 pm i...

Palynological analysis of pollen, Pteridophyta spores and algae deposited in the superficial sediments at Lagoa de Cima and Lagoa do Campelo Lakes, located in the north of Rio de Janeiro state, was used to determine the spatial variation of the palynomorphs deposition. A total of 67 pollen types were identified at Lagoa de Cima, with an expressive contribution of regional arboreous taxa, hydrop...

Abstract–This study focuses on the integration of wind and solar energy sources to create hybrid power systems, with an emphasis evaluating their performance through advanced control techniques. The increasing demand for sustainable solutions has driven need efficient utilization renewable resources. Wind energies, being prominent among these resources, offer substantial potential generation. p...