搜索结果: 1-15 共查到“环境科学技术 Natural”相关记录27条 . 查询时间(0.078 秒)
Oak trees in Southern U.S. cities are natural urban air filters（图）
Oak trees Southern cities U.S. natural urban air filters
2019/10/18
Researchers at the University of North Texas have found that two oak tree species, post oak and live oak, that are widespread across the U.S. South remove black carbon from the urban atmosphere. The f...
Geoinformatics for Natural Resources Management vis-à-vis Environmental Justice
Geo-environmental Mapping Remote Sensing Change Detection Visualization GIS
2015/7/29
In natural resources and environmental management Environmental Impact Analysis (EIA) is an essential component to specify the
guidelines for biodiversity conservation. Conceptually, ‘Geo-environmen...
Experimental and Parameterization Method for Evaluation of Dry Deposition of S Compounds to Natural Surfaces
Flux Deposition Velocity Parameterization Sulphur
2013/2/27
This paper deals with parameterization method based on meteorological parameters for calculation of dry deposition of S compounds on natural surface (leaf of Cassia siamea) and direct measurement meth...
High-Sensitivity Ozone Sensing Using 280 nm Deep Ultraviolet Light-Emitting Diode for Detection of Natural Hazard Ozone
Ozone Sensing Deep Ultra Violet Light Emitting Diode DUV-LED High Sensitivity Long Life Compact
2013/3/11
Recently ozone is one of natural hazards which comes from cars, industry using ozone for sterilization of organic and inorganic materials and for water purification. So, ozone sensing becomes very imp...
Development of Automatically Updated Soundmaps for the Preservation of Natural Environment
Soundmaps Acoustic Ecology Hierarchical Pattern Recognition Network of Microphones
2013/3/13
Automatically Updated Soundmaps are maps that convey the sound rather than the visual information content of an area of interest, at a certain time instant or period. Sound features encapsulate inform...
Measurement of Natural and Artificial Radioactivity in Soil at Some Selected Thanas around the TRIGA Mark-II Research Reactor at AERE, Savar, Dhaka
Natural Radionuclide Artificial Radionuclide HPGe Detector TRIGA Mark-II Research Reactor Activity Concentration
2013/3/13
The activity concentration of natural and fallout radionuclides in the soil at some selected Thanas around the TRIGA Mark-II Research Reactor at Atomic Energy Research Establishment (AERE), Savar, Dha...
The ‘Greening’ of Natural Stone Buildings:Quartz Sandstone Performance as a Secondary Indicator of Climate Change in the British Isles?
Climate Change Sandstone Weathering Greening
2013/2/26
A number of recent studies have explored the impact of climate change on natural building stones. Because of its sensitivity to change, sandstone can be seen as having a predictable, recognisable and ...
Assessment of Natural Uranium in the Ground Water around Jaduguda Uranium Mining Complex, India
Natural Uranium Ingestion Dose Radiological Risk
2013/3/12
Ground water ecosystem surrounding the uranium processing facility at Jaduguda, India has been studied for natural uranium distribution. Annual intake of uranium through drinking water for members of ...
Equilibrium Isotherms and Kinetic Studies of Removal of Methylene Blue Dye by Adsorption onto Miswak Leaves as a Natural Adsorbent
Miswak Leaves Salvadora Persica Methylene Blue Adsorption Isotherms Adsorption Kinetics
2013/3/12
In this research miswak leaves, agriculture wastes, available in large quantity in Saudi Arabia, was used as low-cost adsorbent for removing methylene blue (MB) dye. Equilibrium behavior of miswak lea...
Cr(VI) Ions Removal from Aqueous Solutions Using Natural Adsorbents – FTIR Studies
FTIR Chromium (VI) Rice Straw Hyacinth Roots Saw Dust
2013/3/12
The ability of eight natural adsorbents were investigated for adsorptive removal of Cr(VI) from aqueous solutions. Various physico-chemical parameters such as pH, initial metal ion concentration, adso...
Understanding the Variability of Z-R Relationships Caused by Natural Variations in Raindrop Size Distributions (DSD): Implication of Drop Size and Number
Raindrop Size Distribution Radar Reflectivity Factor
2013/2/26
In the issue of rainfall estimation by radar through the necessary relationship between radar reflectivity Z and rain rate R (Z-R), the main limitation is attributed to the variability of this relatio...
Natural Radionuclide Concentrations and Radiological Impact Assessment of River Sediments of the Coastal Areas of Nigeria
Radiological Risk Indices River Sediments In Coastal Area Gamma Spectrometery
2013/3/12
This work was carried out to measure the radioactivity level in the coastal areas of Nigeria by gamma counting of river sediment samples and assess the radiological impact associated with the use of t...
Natural Contaminants in Drinking Waters (Arsenic, Boron, Fluorine and Vanadium) in the Southern Pampean Plain, Argentina
Arsenic Fluorine Vanadium Hydrochemistry Risk
2013/3/12
This research aims at making a diagnosis of the presence of arsenic, boron, fluorine and vanadium in the waters from the basin of El Divisorio stream, tributary of Paso de las Piedras reservoir, in th...
Workplace Environment and Personal Exposure of PM and PAHs to Workers in Natural Rubber Sheet Factories Contaminated by Wood Burning Smoke
Smoke Polycyclic aromatic hydrocarbon Ribbed smoked sheet Exposure Fine particles
2016/3/29
The workplace environment in factories producing ribbed smoked sheet rubber (RSS), the interiors which are heavily
contaminated by wood burning smoke, was evaluated with a focus on the concentration ...
Evaluating Plant Species Diversity and Physiographical Factors in Natural Broad Leaf Forest
Physiographical factors diversity forest Simpson’s index slope aspect altitude
2010/12/21
Problem statement: Species diversity is one of the most important specifications of biological societies. Diversity of organisms, measurement of variety and examination of those hypotheses that are ab...