process analysis Articles
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Pro-Bio Hysens –EU- Project - Case Study
Process gas analysis for bio and hydrogen gas mixtures using new high pressure in Situ sensors. The goal of the project is the development and combination of sensors for measuring optical, thermo physical and electro magnetic properties, to achieve an in Situ high pressure concentration measuring in bio and hydrogen gas ...
By Gasera Ltd
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Biosensor with total internal reflection imaging ellipsometry
In order to monitor multiple protein reaction processes simultaneously, a biosensor based on imaging ellipsometry operated in the total internal reflection mode is proposed. It could be realised as an automatic analysis for protein interaction processes with real-time label-free method. Its principle and methodology as well as a demonstration for its applications are presented.Keywords: ...
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Definition of structural features of nano coated webs by image processing methods
The extensive application in future of nano webs has attracted world tendency toward them. The identification of nano webs' characteristics can direct consumer toward their end uses. Many nano web characteristics depend on its structure. Since they are made of nano fibres and have thin structure, conventional optical techniques are not completely applicable to measure their structural properties. ...
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Use of multi-criteria decision analysis in regulatory alternatives analysis: A case study of lead free solder
Regulators are implementing new programs that require manufacturers of products containing certain chemicals of concern to identify, evaluate and adopt viable, safer alternatives. Such programs raise the difficult question for policymakers and regulated businesses of which alternatives are “viable” and “safer.” To address that question, these programs use ...
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Comparison and analysis of the expansion process in a CO2 transcritical cycle
The isentropic and isenthalpic expansion processes in a CO2 transcritical cycle were analysed thermodynamically. It was found that the effective refrigeration capacity of the cycle with the isentropic expansion process is higher than the cycle with the isenthalpic expansion process. The increment is slightly larger than the expansion work recovered because of the transcritical nature of the ...
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Wavelet-based trend analysis of hydrological processes at different timescales
This study analyzes involved trends in stream flow and precipitation data at monthly, seasonal and annual timescales observed at six precipitation and four stream flow stations of Tampa Bay using non-parametric Mann–Kendall (MK) and discrete wavelet transform (DWT) methods. The MK test and sequential MK analysis were applied to different combinations of DWT after removing the effect of ...
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Integration of EcoDesign in the early steps of the innovation process
EcoDesign is not easily fitting in the Innovation process, mostly owing to the dedicated time and resources required for learning and applying the EcoDesign–related knowledge when fast decision–making is occurring in early stages of product development and as there is only a low level of information on the new product to be made. In this paper, we propose a way to integrate EcoDesign in the early ...
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Dynamic laser speckle and fuzzy mathematical morphology applied to studies of chemotaxis towards hydrocarbons
The movement of the microorganisms towards a higher concentration of the chemical attractant is called positive chemotaxis and is involved in the efficiency of chemical degradation. Several studies are focused in this field related to genomics, and towards demonstrating chemotactic responses by bacteria, but there is little information related to the activity and morphology of their response. In ...
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Experts in ethylene solutions
The precise and rapid analysis of process gases within an ethylene plant is vital to ensure safe and efficient operation, being used to optimize process efficiency while maintaining the highest levels of safety. These efficiencies can be achieved in a variety of ways, including shortening the residence time in the cracking furnace; rapid adaptation to changing feed-stocks; improving combustion ...
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PHASUITE: AN AUTOMATED HAZOP ANALYSIS TOOL FOR CHEMICAL PROCESSES Part II: Implementation and Case Study
INTRODUCTION To aid human experts in conducting HAZOP analysis in a more thorough and systematic way, PHASuite (Process Hazard Analysis Suite) has been developed in this work. The knowledge engineering framework is presented in the first part of the two-part paper. Based on the proposed framework, a powerful software infrastructure is designed, and PHASuite is constructed. As ...
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Monitoring intracellular polyphosphate accumulation in enhanced biological phosphorus removal systems by quantitative image analysis
A rapid methodology for intracellular storage polyphosphate (poly-P) identification and monitoring in enhanced biological phosphorus removal (EBPR) systems is proposed based on quantitative image analysis (QIA). In EBPR systems, 4′,6-diamidino-2-phenylindole (DAPI) is usually combined with fluorescence in situ hybridization to evaluate the microbial community. The proposed monitoring ...
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Scaled critical factor index for optimal resource allocation in service and lean construction
Service and construction require large resource, thus there is a need for a comprehensive method for optimal resource allocation. The purpose of this study is to develop and use scaled critical factor index (SCFI) for sustainable resource allocations in a service provision company and a lean construction project. In this research, 160 questionnaires were distributed and the response rate was 48%. ...
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Case study - Finding acoustical weak points in room dividing modular walls
Problem A conference hotel is using modular walls to divide large halls into several smaller conference rooms. The rooms are divided by modular walls that provide several different opportunities for subdivision and multipurpose use of the large area spaces. When measuring the sound insulation between adjacent rooms through the modular walls, the resulting value was found to be too low, and ...
By Norsonic AS
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Hierarchy of sizes and sorption selectivity of ultrafine particles of hydrated titania
It is shown that precipitation of hydrated titania from sulphuric acid and hydrochloric acid solutions in the presence of graphite soot gives rise to titania composite material with surface-deposited hydrated TiO2 particles. Three levels of hydrated TiO2 particles size distributions have been detected as a result of SEM and STM analysis of the composites. Quantum-chemical simulation of titanium ...
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Exergy analysis of the process of wet-process phosphoric acid production with full utilisation of sulphur contained in the waste phosphogypsum
The wet-process phosphoric acid is produced by decomposition of phosphate raw materials with sulphuric acid. This gives a large amount of waste product-phosphogypsum. The thermochemical decomposition of phosphogypsum gives a gas rich in SO2. This gas is processed to obtain sulphuric acid, which is fed back into phosphoric acid production. The aim of this paper is to perform exergy analysis of the ...
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Generic algorithms for analysis of interdependent multidomain network systems
This paper presents a methodology for solving interdependent, multidomain networks with generic algorithms. The methodology enables modelling of very large systems. Generic algorithms enable the system solver to be written such that it is independent of the system type. The solution of the system equations is implemented with Graph Trace Analysis (GTA), where traces through the directed graph of ...
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Modelling and analysis of the atmospheric nitrogen deposition in North Carolina
The United States Environmental Protection Agency's Community Multiscale Air Quality (CMAQ) regional-scale model is used to study concentrations and dry deposition of nitrogen species in North Carolina (NC) during the summer season. Each modelled and measured species featured a similar diurnal trend. A process budget analysis (production and removal evaluation) of NO, NO2, and NOY depicted the ...
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A strategic decision model for the justification of supply chain as a means to improve national development index
A country's economy can be justified by many economic means. In this paper, it is proposed that supply chain as a means to develop a national economy. The analysis is carried out with three alternatives: supply chain, quality of life and economic conditions. A Modified BrownGibson (MBG) model is proposed by considering objective (internal factors (IF) affecting supply chain), subjective (external ...
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Environmental impact and design of an OTEC plant
This paper presents a critical examination of the environmental impact and design optimisation of a potential OTEC (Ocean Thermal Energy Conversion) power plant on the island of Diego Garcia in the Indian Ocean. Specific power of a finite-time thermodynamic heat engine is chosen to be the objective function in the design of the OTEC. ICAI (Intelligent Computer Aided Instruction) computer ...
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Digital UV Printing on Wood Floor
UV flatbed printer for wood, also called wooden sign printing machine, is a new type of hi-tech digital printing device fit for almost all kinds of materials. It can replace screen printing, pad printing, and transfer printing devices. Print colors on all kinds of materials without layout design and chromatography, as well as higher quality of output than traditional ways even it is easy to ...
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