Search results for: Viorel Arghius

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Arghius</title> <meta name="description" content="Search results for: Viorel Arghius"> <meta name="keywords" content="Viorel Arghius"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none navbar-toggler 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id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="Viorel Arghius"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 4</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Viorel Arghius</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4</span> Methodological Approach for the Prioritization of Different Micro-Contaminants as Potential River Basin Specific Pollutants in the Upper Tisza River Watershed</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mihail%20Simion%20Beldean-Galea">Mihail Simion Beldean-Galea</a>, <a href="https://publications.waset.org/abstracts/search?q=Virginia%20Coman"> Virginia Coman</a>, <a href="https://publications.waset.org/abstracts/search?q=Florina%20Copaciu"> Florina Copaciu</a>, <a href="https://publications.waset.org/abstracts/search?q=Mihaela%20Vlassa"> Mihaela Vlassa</a>, <a href="https://publications.waset.org/abstracts/search?q=Radu%20Mihaiescu"> Radu Mihaiescu</a>, <a href="https://publications.waset.org/abstracts/search?q=Adina%20Croitoru"> Adina Croitoru</a>, <a href="https://publications.waset.org/abstracts/search?q=Viorel%20Arghius"> Viorel Arghius</a>, <a href="https://publications.waset.org/abstracts/search?q=Modest%20Gertsiuk"> Modest Gertsiuk</a>, <a href="https://publications.waset.org/abstracts/search?q=Mikola%20Gertsiuk"> Mikola Gertsiuk</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Taking into consideration the huge number of chemicals released into environment compartments a proper environmental risk assessment is difficult to predict due to the gap of legislation and improper toxicological assessment of chemicals compounds. In Romania as well as in many other countries from Europe, the chemical status of the water body is characterized taking into consideration the Water Framework Directive (WFD) and the substances listed in Annex X. This Annex includes 45 substances from different classes of organic compounds and heavy metals for which AA-EQS and MAC-EQS have been established. For other compounds which are not included in Annex X, different methodologies to prioritize chemicals for risk assessment and monitoring has been proposed. These methodologies take into account Predicted No-Effect Concentrations (PNECs) of different classes of chemicals compounds available from existing risk assessments or from read-across models for acute toxicity to the standard test organisms such as Daphnia magna and Selenastrum capricornutum. Our work presents the monitoring results of 30 priority substances including polyaromatic hydrocarbons, pesticides, halogenated compounds, plasticizers and heavy metals and other 34 substances from different classes of pesticides and pharmaceuticals which are not included on the list of priority substances, performed in the Upper Tisza River Watershed from Romania and Ukraine. The obtained monitoring data were used for the establishment of the list of more relevant pollutants in the studied area and to establish the potential river basin specific pollutants. For this purpose, two indicators such as the Frequency of exceedance and Extent of exceedance of Predicted no-Effect Concentration (PNEC) were evaluated. These two indicators are based on maximum environmental concentrations (MECs) of priority substances and for other pollutants is use statistically based averages of obtained measured concentration compared to the lowest PNEC thresholds. From the obtained results it can be concluded that polyaromatic hydrocarbon such as Fluoranthene, Benzo[a]pyrene, Benzo[b]fluorathene, benzo[k]fluoranthene, Benzo(g.h.i)perylene, Indeno(1.2.3-cd)-pyrene, heavy metals such as Cadmium, Lead and Nickel can be considered as river basin specific pollutants, their concentration exceeding the Annual Average EQS concentration. Other compounds such as estrone, estriol, 174-β estradiol, naproxen or some antibiotics (Penicillin G, Tetracycline or Ceftazidime) should be taken into account for a long monitoring, in some cases their concentration exceeding PNEC. Acknowledgements: This work is performed in the frame of NATO SfP Programme, Project no. 984440. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=prioritization" title="prioritization">prioritization</a>, <a href="https://publications.waset.org/abstracts/search?q=river%20basin%20specific%20pollutants" title=" river basin specific pollutants"> river basin specific pollutants</a>, <a href="https://publications.waset.org/abstracts/search?q=Tisza%20River" title=" Tisza River"> Tisza River</a>, <a href="https://publications.waset.org/abstracts/search?q=water%20framework%20directive" title=" water framework directive"> water framework directive</a> </p> <a href="https://publications.waset.org/abstracts/69004/methodological-approach-for-the-prioritization-of-different-micro-contaminants-as-potential-river-basin-specific-pollutants-in-the-upper-tisza-river-watershed" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/69004.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">305</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3</span> Wireless Optic Last Mile Multi-Gbit/s Communication System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Manea%20Viorel">Manea Viorel</a>, <a href="https://publications.waset.org/abstracts/search?q=Puscoci%20Sorin"> Puscoci Sorin</a>, <a href="https://publications.waset.org/abstracts/search?q=Stoichescu%20Dan%20Alexandru"> Stoichescu Dan Alexandru</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Free Space Optics (FSO) is an optical telecommunication system that uses laser beam to transmit data at high bit rates via terrestrial atmosphere. This article describes a method to obtain higher bit rates, under unfavorable weather conditions using multiple optical beams, which carry information with low optical power. Optical link quality assessment is given by the attenuation on different weather conditions. The goal of this paper is to compare two transmission techniques: mono and multi beam, both affected by atmospheric attenuation, using OOK and L-PPM modulation. Link availability is evaluated using eye-diagram that provides information about the overall bit error rate of the system. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=free%20space%20optics" title="free space optics">free space optics</a>, <a href="https://publications.waset.org/abstracts/search?q=wireless%20optic" title=" wireless optic"> wireless optic</a>, <a href="https://publications.waset.org/abstracts/search?q=laser%20communication" title=" laser communication"> laser communication</a>, <a href="https://publications.waset.org/abstracts/search?q=spatial%20diversity" title=" spatial diversity"> spatial diversity</a> </p> <a href="https://publications.waset.org/abstracts/34516/wireless-optic-last-mile-multi-gbits-communication-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/34516.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">505</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2</span> Adaptive Design of Large Prefabricated Concrete Panels Collective Housing</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Daniel%20M.%20Muntean">Daniel M. Muntean</a>, <a href="https://publications.waset.org/abstracts/search?q=Viorel%20Ungureanu"> Viorel Ungureanu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> More than half of the urban population in Romania lives today in residential buildings made out of large prefabricated reinforced concrete panels. Since their initial design was made in the 1960’s, these housing units are now being technically and morally outdated, consuming large amounts of energy for heating, cooling, ventilation and lighting, while failing to meet the needs of the contemporary life-style. Due to their widespread use, the design of a system that improves their energy efficiency would have a real impact, not only on the energy consumption of the residential sector, but also on the quality of life that it offers. Furthermore, with the transition of today’s existing power grid to a “smart grid”, buildings could become an active element for future electricity networks by contributing in micro-generation and energy storage. One of the most addressed issues today is to find locally adapted strategies that can be applied considering the 20-20-20 EU policy criteria and to offer sustainable and innovative solutions for the cost-optimal energy performance of buildings adapted on the existing local market. This paper presents a possible adaptive design scenario towards sustainable retrofitting of these housing units. The apartments are transformed in order to meet the current living requirements and additional extensions are placed on top of the building, replacing the unused roof space, acting not only as housing units, but as active solar energy collection systems. An adaptive building envelope is ensured in order to achieve overall air-tightness and an elevator system is introduced to facilitate access to the upper levels. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=adaptive%20building" title="adaptive building">adaptive building</a>, <a href="https://publications.waset.org/abstracts/search?q=energy%20efficiency" title=" energy efficiency"> energy efficiency</a>, <a href="https://publications.waset.org/abstracts/search?q=retrofitting" title=" retrofitting"> retrofitting</a>, <a href="https://publications.waset.org/abstracts/search?q=residential%20buildings" title=" residential buildings"> residential buildings</a>, <a href="https://publications.waset.org/abstracts/search?q=smart%20grid" title=" smart grid"> smart grid</a> </p> <a href="https://publications.waset.org/abstracts/56228/adaptive-design-of-large-prefabricated-concrete-panels-collective-housing" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/56228.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">297</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1</span> Minimizing Ship’S Breakdown Maintenance Due to Rope Entangled In Propeller With “Si Kuman” On Mooring Boat PSC I in Surabaya</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jogi%20Prayogo">Jogi Prayogo</a>, <a href="https://publications.waset.org/abstracts/search?q=Dwi%20Qaqa%20Prasetyatama"> Dwi Qaqa Prasetyatama</a>, <a href="https://publications.waset.org/abstracts/search?q=Rahmad%20Dwi%20Afandi"> Rahmad Dwi Afandi</a>, <a href="https://publications.waset.org/abstracts/search?q=Kunto%20Arief%20Prasetyo"> Kunto Arief Prasetyo</a>, <a href="https://publications.waset.org/abstracts/search?q=Viorel%20Herniza%20Leksono"> Viorel Herniza Leksono</a> </p> <p class="card-text"><strong>Abstract:</strong></p> PT. Pertamina Trans Kontinental managed a fleet of 364 ships in 2018 - 2020. In that period, there were 8 incidents of ship damage, causing breakdown maintenance on 6 ships belonging to PT Pertamina Trans Kontinental throughout Indonesia's operational areas due to ropes entangled in propellers. The company's losses that were caused by the fouled propellers amounted to 306.35 Million Rupiah. Of the 8 incidents, Mooring Boat PSC I was taken as a pilot project for further analysis considering the location of the ship which is in Surabaya and Mooring Boat PSC I has experienced 2 incidents of rope entanglement that caused the company's losses due to the largest Breakdown Maintenance amounted to 200.99 Million Rupiah. After analyzing the rope entanglement in the ship's propeller based on the data of Mooring Boat PSC I related to the location of propellers that are often fouled in the conventional propulsion system, it was found that there is a suitable location for the implementation of SI KUMAN tool that serves to cut ropes to prevent the occurrence of rope entangled in ship propellers. The determination of SI KUMAN tool is based on the strength of the ship's material to be installed and a suitable design to prevent the occurrence of ropes being entangled in propellers. After the installation of the "SI KUMAN" tool and monitoring carried out for 1 year period (August 2020 - August 2021), it was found that SI KUMAN tool can eliminate the risk of fouled propeller incidents which previously occurred twice in one year so that the company's loss amounted to 200.99 Million Rupiah can be eliminated and SI KUMAN tool can still operate optimally. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=breakdown%20maintenance" title="breakdown maintenance">breakdown maintenance</a>, <a href="https://publications.waset.org/abstracts/search?q=mooring%20boat" title=" mooring boat"> mooring boat</a>, <a href="https://publications.waset.org/abstracts/search?q=fleet" title=" fleet"> fleet</a>, <a href="https://publications.waset.org/abstracts/search?q=fouled%20propeller" title=" fouled propeller"> fouled propeller</a>, <a href="https://publications.waset.org/abstracts/search?q=rope%20entangled" title=" rope entangled"> rope entangled</a>, <a href="https://publications.waset.org/abstracts/search?q=cut" title=" cut"> cut</a> </p> <a href="https://publications.waset.org/abstracts/143216/minimizing-ships-breakdown-maintenance-due-to-rope-entangled-in-propeller-with-si-kuman-on-mooring-boat-psc-i-in-surabaya" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/143216.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">181</span> </span> </div> </div> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div class="container"> <div style="background-color:#f5f5f5;" class="p-3"> <div class="row"> <div class="col-md-2"> <ul class="list-unstyled"> About <li><a href="https://waset.org/page/support">About Us</a></li> <li><a href="https://waset.org/page/support#legal-information">Legal</a></li> <li><a target="_blank" rel="nofollow" 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Search results for: Viorel Arghius