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Characteristics of PAHs in Particulates in the Atmospheric Environment of Hat Yai City, Thailand, and Relationship with Rubberwood Burning in Rubber Sheet Production
PAHs Size distribution Wood burning Rubber-wood Rubber sheet
2016/3/29
Natural rubber is a main commodity of Thailand, half of which is formed into ribbed smoked sheets
(RSS). Fuel wood is burned during RSS production to heat and dry the rubber sheets. Smoke from the
b...
Valuable mineral resources are widely distributed throughout the seabed. autonomous underwater vehicles (AUVs) are preferable to remotely-operated vehicles (ROVs) when probing for such mineral resources as the extensive exploration area makes it difficult to maintain contact with operators. AUVs depend on batteries, so their power consumption should be reduced to extend exploration time. Power for conventional marine instrument systems is incorporated in their waterproof sealing. External intermittent control of this power source until termination of exploration is challenging due to limitations imposed by the underwater environment. Thus, the AUV must have a power control system that can improve performance and maximize use of battery capacity. The authors developed such a power control system with a three-step algorithm. It automatically detects underwater operational states and can limit power, effectively decreasing power consumption by about 15%.
surface piercing propeller boundary element method hydrodynamic characteristics
2011/9/13
Demand for high-speed marine vehicles (HSMVs) is high among both commercial and naval users. It is the duty of the marine vessel’s designer to provide a hull and propulsion system that diminishes drag...
Biotechnologie, Agronomie, Société et Environnement—Biotechnology, Agronomy, Society and Environment（BASE）
Biotechnologie Agronomie Société et Environnement—Biotechnology Agronomy Society and Environment BASE biotechnology 生物工艺学
2008/1/16
Biotechnologie, Agronomie, Société et Environnement" publie des articles originaux, des notes de recherche, des articles de synthèse, des résumés de livres et de thèses ainsi que des comptes rendus de...
The Department of Geography, Planning and Environment at Concordia University
Geography 地理学 Environment 环境 Urban Studies 城市研究
2008/1/16
The Department of Geography, Planning and Environment at Concordia University focuses on the Earth as the home of humans. Of central concern is the study of the physical and biological processes that ...
A hybrid, PDE-ODE control strategy for intercepting an intelligent, well-informed target in a stationary, cluttered environment
Pursuit Evasion Potential Field Game Theory
2010/9/16
In [15], [16] a new class of intelligent controllers that can semantically embed an agent in a spatial context constraining its behavior in a goal-oriented manner was suggested. A controller of such a...
空间诱变水稻大粒型突变体的遗传育种研究Studies of Inheritance and Application in Rice Breeding of theLarge Grain Mutant Induced in Space Environment
水稻 突变体 空间诱变 优质 籽粒大小 不饱和回交法
2007/12/29
对粳稻农垦58经空间诱变产生的大粒型突变体进行大粒型性状的遗传分析和育种应用研究。结果表明，大粒型突变体的籽粒大小（以籽粒体积表示）表现为受多基因控制的数量性状。大粒型突变体谷粒细长，具馨香味，外观品质优，对粳稻的亲和性好，是一个罕见的优质米资源。以大粒型突变体为供体，高产、外观米质差的晚粳推广品种为受体，采用不饱和回交结合分离世代糙米外观品质鉴定的方法，将大粒型突变体的优质性状导入晚粳背景，选育...
The dynamic coupling model and its application of urbanization and
eco-environment in Hexi Corridor
2007/8/24
This paper, taking Hexi Corridor as an example, analyzes the alternating intimidation and the dynamic evolving relation between urbanization and eco-environment in arid area of West China....
Changes and spatial patterns of eco-environment in the farming-pastoral region of northern China
2007/8/24
This paper firstly selects 10 kinds of indexes to reflect eco-environment background condition and builds the multi-subject spatial database by using ground meteorological data, remote sen...
The environment evolution of Wuliangsuhai wetland since 1986 is analyzed based on the remote sensing principle. The total water area of Wuliangsuhai lake has been increased during the past...
The aim of the study was to assess the environment-health development in different regions of China. 175 indicators, such as average life expectancy at birth, emission intensity of waste g...
Based on geographical and hydrological extents delimited, four principles are identified, as the bases for delineating the ranges of the source regions of the Yangtze and Yellow rivers in ...
Virtual reality (VR) technology, coupled with GIS technology and functions, has created a geo-virtual environment (GeoVE) and attracted human awareness of geo-cognition. GeoVE can help und...
According to archaeological data from about sixty samples the relative stability of physical and human geographical environment in the tropical zone of China is discussed in this paper. Be...
The karst landforms distributed on the Qinghai-Xizang (Tibet) Plateau can be genetically classed with the Tertiary underground karst, which were gradually exhumed to the surface with the u...
Abstract: Based upon the formation and evolution of oasis and the factors restricting the coordinated development of oasis economy and environment, this paper presents a goal of the develo...