P. Yamba, T. Kantu, L.V. Biesen
One of the most handicaps for developing countries in the field of environmental management is, besides gaps in environmental information and inadequate communication systems including basic telephone facilities and Internet connectivity, the lack of basic and thematic information on natural resources. For example, in the context of Democratic Republic of Congo (DRC), topographic maps as well as land cover, vegetation, geological, hydrological and pedological maps, where they exist, were mainly produced during the 1950s, 1960s or 1970s and therefore are outdated. This situation compromises...
XVI IMEKO World Congress
· TC19
· 2000
· Download
K. Watanabe, Y. Takahashi, M. Kihara
This paper describes an environmental monitor method. Here we describe a method for measuring the amount of soot and dust discharged from the plant and incinerator. The principle of method is based on the electrostatics. When the soot and dust pass through the strong electric field, these contact to the ionized air and are charged. These induce the change in the electrostatic field near the electrode in the downstream when passing through near it and the small current occurs in the electrode. The current is proportional to the amount of electric charge of the soot and dust, and the amount of...
XVI IMEKO World Congress
· TC19
· 2000
· Download
J. F. Urbánek
The environmental sustainability is incorporated to production-economy activities in the frame of tech-sphere. An Anthroposophy is introduced as a new interdisciplinary concept for future Eco-ideology. Three instrumental source for support and cultivation of Sustainable Development (SD) are defined – The Anthroposophy, a Logistics, an Informatics. Their harmful influence was defined to an environment. Further sphere of above SD principle are defined – a biosphere; an eco-sphere; an anthropo-sphere. A transformation - τ and a coherence - κ are mentioned as a objective valuable variables which...
XVI IMEKO World Congress
· TC19
· 2000
· Download
H. Tsutada, T. Hirai, T. Usami
This paper proposes a new image sensor that can evaluate wastewater quality and automatically determine the amount of chemicals to be added in the wastewater treatment process. The sensor can stabilize the wastewater quality and reduce the operator man-hours and chemicals used.
XVI IMEKO World Congress
· TC19
· 2000
· Download
S. Terachi, S. Ogata
With the aim of better understandings on the tide level, which repeats a cyclic motion under the influence of a strong current “Kuroshio”, we observed it over a few years. We then analyzed its time series data on a time-frequency basis by wavelet and short time Fourier transform techniques using a Gabor function. The time-frequency representation revealed a remarkable effect of the winding of the current. With the beginning of the winding, a phase gap between 12 hrs and 24 hrs periodic modes resulted in markedly, and the reappearance period of these modes decreased from about 400 hrs to 300...
XVI IMEKO World Congress
· TC19
· 2000
· Download
P. P. L. Regtien, M. J. Korsten, Z.Houkes
This paper presents the design and performance of a recognition system for the identification of electronic components on scrap PCB's. The system comprises four measurement units: three optical imagers (yielding a range image, a high resolution grey-tone image and a color image, respectively), and an eddy current sensor (sensitive to electric and magnetic material properties). The system identifies batteries, electrolytic capacitors and integrated circuits. Its error rate is further reduced by fusion of the sensor outputs using strict Bayesian information integration.
XVI IMEKO World Congress
· TC19
· 2000
· Download
M. Ohara, K. Suzuki, S. Kusama, M. Kuwahara, Y. Tsumita, N. Yoshikawa, K. Yabuki
The novel sensing technique using laser induced fluorescence (LIF) for environmental detection to measure carbon monoxide and alkali vapor in the exhaust gas from the coal fired thermal power plant has been developed. High accuracy and short measurement time indicate a possibility of in-situ environmental detection in the real thermal power plant.
XVI IMEKO World Congress
· TC19
· 2000
· Download
V. B. Mokin, B. I. Mokin
The condition of water quality in the rivers of most countries deteriorate with each year, despite of rigid demands of environment laws in legislation of many countries. There are three main reasons for such a state – increasing of non-registered sewage disposals of polluting substances in the rivers, the lack of reliable methods and tools for definition of coordinates of sources of these sewage disposals, insufficient spatially-temporal control over processes which take place in the rivers. The paper presents the mathematical models, methods and tools for the solution of the above mention...
XVI IMEKO World Congress
· TC19
· 2000
· Download
F. Miyasaka, T. Ohji, Y. Fujii
The accurate measurement of temperature is very important to achieve high quality products in materials processing such as arc welding and thermal cutting. The IR(infrared) radiation thermometer has been applied to these processing, because it requires no physical contact with an object. Generally, the radiation thermometry leads to noticeable error in measuring temperature of molten pool under the welding where the emissivity is unknown. In the present paper, the molten pool temperature measurement by UV (ultra violet) thermal radiation has been discussed. In the experiment, stainless steel...
XVI IMEKO World Congress
· TC19
· 2000
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A. Lay Ekuakille, F. Tralli, M. Tropeano
The aim of this paper is to show an experimental use of satellite images in determining soil quality affected by anthropic activities. We have used ERS-2/SAR images as contribution in the process of soil characterization. The area we have considered is in Puglia (Italy) and is subject to soil transformation due to rocks crushed on land for agricultural facilities. Thus the basic aspect is the contribution of satellite in Environmental impact assessment of some components like soil, subsoil and relative factors, for example morphologic modification. The relationship between image intensity...
XVI IMEKO World Congress
· TC19
· 2000
· Download