This research introduces an innovative method for watermarking medical images to address security concerns during the transmission of medical images and patient data over insecure networks between hospitals and health...
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In the framework of the protection of the environment, we proceeded during the year 2016 (12 months), to the follow-up of variation of the wastewater pollution parameters at the inlet and at the outlet of the treatmen...
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The contribution of our paper is a new simple method for transfer-function matrices derivation in two-dimensional digital systems from Roesser’s model is given. The main idea of this method is changing the form of th...
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the DC/AC interaction and the presence of the high nonlinearity in the HVDC links, these problems needs to examine the behavior of the system in steady-state and transient conditions in order to define the great role ...
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In the framework of the protection of the environment, we proceeded during the year 2016 (12 months), to the follow-up of variation of the wastewater pollution parameters at the inlet and at the outlet of the treatmen...
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ISBN:
(数字)9798350346336
ISBN:
(纸本)9798350346343
In the framework of the protection of the environment, we proceeded during the year 2016 (12 months), to the follow-up of variation of the wastewater pollution parameters at the inlet and at the outlet of the treatment plant of the Djelfa city, which operates by activated sludge, following the medium load *** physicochemical analyzes were carried out on the following parameters: pH, temperature, eclectic conductivity, turbidity, Total suspended solids, COD, BOD5, NH4+, NO3- and total phosphorus. At the end of these analyses, we obtained good elimination yield of 92% to 91% for TSS and 92% to 91% for BOD5. The COD recorded a reduction of 84% to 83%. Total phosphorus achieved a removal efficiency of 55% to 66%. For nitrogen, Ammonia experienced a 61% to 57% reduction from inlet to outlet of the plant. On the other hand, nitrates recorded an increase of 200% to 236%, due to *** quality of the treated water, for the majority of the parameters, complies with the standards required by Algerian regulations and those of the WHO. We can conclude that the treatment system adopted at the level of the WWTP of Djelfa is effective and justified its design and its objective of realization.
the DC/AC interaction and the presence of the high nonlinearity in the HVDC links, these problems needs to examine the behavior of the system in steady-state and transient conditions in order to define the great role ...
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ISBN:
(数字)9798350346336
ISBN:
(纸本)9798350346343
the DC/AC interaction and the presence of the high nonlinearity in the HVDC links, these problems needs to examine the behavior of the system in steady-state and transient conditions in order to define the great role of protection functions and control parameters. Furthermore, Control and protection systems are a vital part of an HVDC system to guarantee the safety, reliability, and stability of its operation. This research aim is to provide the solutions for control and protection problems that can occur in HVDC link. In this paper, we study how we mitigate this serious malfunction of commutation failure process in the operation of HVDC converters. Indeed some protection functions like the commutation failure prevention. Furthermore, HVDC transmission systems are vulnerable to DC faults and its protection becomes ever more important with the fast growth in the number of installations. Finally, the dynamics of the studied power system including the HVDC link is thoroughly investigated through various simulation scenarios.
Mixing index, pressure drop, and kinematic measurements within the T-micromixer with helical elements and their related mixing performances have been studied and validated using CFD, for different values of Reynolds n...
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