نتایج جستجو برای: industrial plant
تعداد نتایج: 532682 فیلتر نتایج به سال:
The (14)C method is a very reliable and sensitive method for industrial plants, emission authorities and emission inventories to verify data estimations of biogenic fractions of CO(2) emissions. The applicability of the method is shown for flue gas CO(2) samples that have been sampled in 1-h intervals at a coal- and wood-fired power plant and a waste incineration plant. Biogenic flue gas CO(2) ...
Industrial plants are heterogeneous networks with different computation and communication capabilities along with different security properties. The optimal operation of a plant requires a balance between communication capabilities and security features. A secure communication data flow with high latency and low bandwidth does not provide the required efficiency in a plant. Therefore, we focus ...
As the title implies the article describes actuality of algorithm development of positioning industrial wares in-plant based on radio frequency grid for the construction of the products tracking systems. Requirements of international standards regulating the processes of traceability and identification are analysed. The article offers a system hardware solution for positioning of industrial war...
Dynamic analysis and monitoring is of great importance in industrial process plant. Very often, a qualitative analysis of process data is enough to analyze the situation of the plant. This paper introduces a methodology to analyze qualitative trend of time series data at first. Based on the methodology, a method to diagnose a control valve in a process control loop is introduced. The proposed d...
AIM Assessment of harmful industrial factors caused by work conditions in a modern milk processing plant. METHODS Work conditions, rest, nutrition, medical service, and subjective health indices among the employees in a new milk processing plant were studied. We used a specially formed questionnaire; instrumental measurements of microclimate parameters, noise, and illumination at workplace; l...
Health and environmental impacts of a fertilizer plant--Part I: assessment of radioactive pollution.
The aim of the first part of this investigation is to assess the radioactive pollution caused by a production plant of complex fertilizers (that is to say containing nitrogen, phosphorus and, in some cases, potassium). Firstly, the authors determine the concentrations of natural radioactivity present in raw materials, end products and wastes of the industrial plant. Then, they carry out an asse...
background and purpose: disposing sludge from industrial wastewater treatment plants (iwwtps) is a serious issue because it can affect human and animals health, and also environmental quality. in this study, sludge from an iwwtp was analyzed regarding its physicochemical characteristics and disposal options. materials and methods: grab sampling was used to collect 12 sludge samples biweekly (ma...
the main task of this work is related with the design of a class of siso robust control law for theregulation of substrate concentration (cdo) of an industrial activated sludge wastewater plant. the controldesign is related with an uncertainty estimator (reduced order observer) based active control. departing from the tracking error between the desired and the current substrate concentrations t...
the main task of this work is related with the design of a class of siso robust control law for theregulation of substrate concentration (cdo) of an industrial activated sludge wastewater plant. the controldesign is related with an uncertainty estimator (reduced order observer) based active control. departing from the tracking error between the desired and the current substrate concentrations t...
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