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Novel Optimization of Power Quality Problems Using Genetic Algorithm
No full textAbstract: This project proposes a voltage stability for an interline photovoltaic (I-PV) system. In an I-PV system, the inverters in a PV plant are reconfigured in such a way that two or more distribution networks / feeder are interconnected. The I-PV system is operated as a flexible ac transmission system (FACTS) device STATCOM to regulate the point of common coupling voltage on either feeder. One of the key features of the I-PV system is that real power can be exchanged between two feeders via PV plant inverters. This method is thus proposed, especially for switching loss reduced, to facilitate power quality problems such as voltage flicker and harmonics which are control to regulate the point of common coupling voltage
RE-EXAMINING PROFIT PERSISTENCE IN THE TURKISH ENERGY MARKET: EVIDENCE FROM PANEL AUTOREGRESSIVE-DISTRIBUTED LAG
No full textABSTRACT This paper re-examines Persistence of Profit (PP) in the Turkish energy market by utilizing the recent developments in panel data. We employ panel ARDL (Autoregressive-Distributed Lag) to see how persistence parameter varies for short and long run by examining five companies which survive from 2005q1-2015q3. We conclude that in short run persistence is more common than long run. Although there are high barriers to entry energy market, PP parameter is relatively low when we focus the PP literature
Refractive Indices and Surface Tension of Diacetone Alcohol + Benzene or Chlorobenzene at 303.15, 313.15 K and 323.15 K
No full textAbstract: The studies of refractive indices and surface tension are being increasingly used as tools for investigation of the properties of pure components and the nature of intermolecular interactions between the liquid mixture constituents. Refractive indices (n D ), and surface tension (σ) have been measured for the binary liquid mixture of diacetone alcohol + Benzene and diacetone alcohol +chlorobenzene over the entire composition range at 303.15, 313.15 K and 323.15 K. The Redlich-Kister model was used to correlate the measured properties. It was found that in all cases, the experimental data obtained fitted with the values correlated by the corresponding models very well. The molecular interactions existing between the components were also discussed
Cooperative Spectrum Sensing and Decision Making Rules for Cognitive Radio
No full textABSTRACT: Cognitive radios are proposed to be the technology that will alleviate the problem of spectrum scarcity by using the underutilized radio frequency on non-interfering basis. So the cognitive radio user must be able detect the available spectrum opportunity reliably and efficiently. Spectrum sensing is an important functionality for cognitive users to look for spectrum holes before taking transmission in dynamic spectrum access model. In this paper we consider a realistic case where the SNR of the primary user's signal is unknown to both fusion center and cognitive radio terminals. Adaptive fuzzy system is designed to make the global spectrum sensing decision based on the observed energies from cognitive users. With the capacity of adapting system parameters, the fusion center can make a global sensing decision reliably without any requirement of channel state information, prior knowledge and prior probabilities of the primary user's signal. Simulation results prove that the sensing performance of the proposed scheme outperforms the performance of the equal gain combination based scheme, and matches the performance of the optimal soft combination scheme
On Coupled Systems of Time-Fractional Differential Problems by Using a New Fractional Derivative
No full textThe existence of solutions for a coupled system of time-fractional differential equations including continuous functions and the Caputo-Fabrizio fractional derivative is examined. After that we investigated a coupled system of time-fractional differential inclusions including compact-and convex-valued 1 -Caratheodory multifunctions and the Caputo-Fabrizio fractional derivative
Acute loss of vision-an uncommon presentation of decompression sickness (DCS). A case report and review of literature
No full textAbstract Decompression Sickness (DCS) results from gas bubble formation in the tissues of individuals who undergo a reduction in ambient pressure without adequate time to eliminate excess inert gas from body. These gas bubbles cause vascular/cellular insufficiency which is responsible for all types of clinical manifestations. DCS occurs in divers and also in those who work in compressed-air as in caissons and tunnels. It can also result from a reduction of normal barometric pressure, such as breathing in an unpressurized aircraft at high altitude. DCS has been classified as Type I , Type II and Type III named as Arterial Gas Embolism( AGE) ; In Type I, Limb and joints pain is present; while in Type II, systemic symptoms or signs, caused by the involvement of the CNS or Cardiopulmonary systems are dominant. Divers usually present with Type I DCS which can be easily recognized because of the symptom of joints pain while the neurological symptoms of Type II DCS mostly are not recognized early, while in case AGE patient have almost similar symptoms as in Type II DCS but these symptoms are more severe and rapid in onset. Neurological manifestations of DCS comprise symptoms from Cerebral hemisphere, the spinal cord, vestibular, retinal/optic nerve involvement. Retinal or optic nerve involvement results in monocular loss of vision, homonymous hemianopia, nystagmus, papilledema and rarely loss of vision. But fortunately with Hyperbaric oxygen therapy (HBOT) the recovery is rapid and complete
Epidemiology of Pregnancy Losses and Practical Strategies for Prevention
No full textAbstract Pregnancy losses from fertilization to term are extensive in lactating dairy cattle. In many cases, they are underestimated because of the inability to determine conception early after insemination. For most producers, pregnancy losses are only quantified after the initial diagnosis is performed at approximately 30 to 45 d of gestation. Recent studies that provided reliable assessments of fertilization have led to the conclusion that more than 60% of all pregnancies are lost before term in lactating dairy cows. The critical period is from fertilization until the end of the differentiation phase (embryonic period) in which approximately 85% of those losses occur. Therefore, strategies to prevent embryonic losses should result in the greatest improvement in reproductive performance. Nevertheless, although fetal losses are minor (approximately 15%) compared with embryonic losses, those are more costly than embryonic losses; therefore they cannot be overlooked. Known risk factors for pregnancy loss include prolonged periods of follicular dominance, low progesterone concentration during ovulatory follicle development, heat stress, postpartum diseases and disorders such as dystocia, metritis, endometritis, mastitis, fever, ketosis, lameness, and digestive problems, negative energy balance, excessive body weight loss, toxins found in feedstuffs such as gossypol, mycotoxins, and ergot alkaloids, and infectious agents such as Neospora caninum, Leptospira spp., Campilobacter spp., BVD virus, and IBR virus among others. Strategies that prevent or control known risk factors should help decrease pregnancy loss and improve reproductive performance
EU΄s Data Protection Reform and the right to be forgotten -A legal response to a technological challenge?
No full textAbstract Technological and social phenomena like cloud computing, behavioural advertising, online social networks as well as globalisation (of data flows) have profoundly transformed the way in which personal data are processed and used. This paper discusses the efficiency of the legislation in force and the impact of PETs and the concept of privacy by design on the enforcement of data protection rules. By recognizing the need to update the data protection regulation as a result of current technological trends that threaten to erode core principles of data protection, the paper addresses the question if the Draft-Regulation presents an adequate and efficient response to the challenges that technological changes pose to regulators. In this context the paper focuses on the right to be forgotten as a comprehensive set of existing and new rules to better cope with privacy risks online in the age of "perfect remembering" and we how persistency and high availability of information limit the right of individuals to be forgotten. The paper deals with both the normative and the technical instruments and requirements so as to ensure that personal information will not be permanently retained
FIXED POINT INDEX APPROACH FOR SOLUTIONS OF VARIATIONAL INEQUALITIES
No full textBy using fixed point index approach for multivalued mappings, the existence of nonzero solutions for a class of generalized variational inequalities is studied in reflexive Banach space. One of the mappings concerned here is coercive or monotone and the other is set-contractive or upper semicontinuous