USE OF AN INFORMATIONAL SYSTEM FOR MODELING AND SIMULATION CONCERNING THE PROGNOSIS OF ELECTRIC POWER

The management of the electric power process in modern hydroelectric power plants implicate the intense use of the information technology, both for the activities performed in actual time and also for the ones performed outside the actual time. Now, when discussing about the problem concerning the development of hydroelectric potential, in the same time with the optimization of production process, it is necessary to assist the manufacturer�s decision in choosing those production capacities able to cover the electric power consume which has important variations in time. Concerning the production of electric power, its defining particularity that it can not be deposited, also imposes that the prognosis of electric power to be as precise as possible. Using an advanced informational system instrument for parametric modeling and simulation concerning the electric power can also be made scenarios and prognosis having an error of 3% instead of 5%, in the present, being place at the upper limit ofproduction optimization, parametric modeling, production prognosis, web application

THE INVOLVEMENT OF INFORMATION TECHNOLOGY IN THE OPTIMAL FUNCTIONING OF ELECTRIC DRIVE SYSTEMS

The implementation of sustainable development in Romania and the abrupt increase of prices for fussil fuels have imposed more serious activies for the examination of the energy consumption in different industrial sectors. Here, the asynchronous electric motors represent the main loads; therefore the energy consumption in electrical drives has to be careffuly watched. The achievement of various procedures to improve energy efficiency, compulsory imposes an energy balance who aims to illustrate the existent profile of energy consumption . The study presents an industry case study about estimation of operating systems functioning that use variable speed motors, highlighting the necessity and appropriateness of using informatic instruments that provide calculations needed to elaborate energy balance and by that, to determine the measures to increase energetic efficiency.energy efficiency, electric drive, energy balance, power factor, informatic instruments

COMPUTER METHODS FOR ANALYSIS AND OPTIMIZATION OF ENERGY COMSUMPTIONS

The implementation of sustainable development in Romania and the abrupt increase of prices for fussil fuels have imposed more serious activies for the examination of the energy consumption in different industrial sectors. Here, the asynchronous electric menergy efficiency, electric drive, energy balance, power factor, informatic instruments.

EXTREME CEREBRAL MALFORMATION – CLINICAL AND ETHICAL ISSUES BASED ON A CASE

Hydranencephaly represents one of the most rare cerebral malformations, with poor prognosis and negative impact on both family and society. Usually the patients remain in a permanent vegetative state and require unlimited medical care. Although the majority of affected babies die in utero or in the fi rst days-months of life there have been cases in literature with prolonged survival, for 20 (1), 22 (2) and 32 (3) years. Therapeutically, the medical care provided are purely palliative and oriented to supporting vital function. Conclusions. Hydranencephaly is a rare brain malformation with poor prognosis, life expectancy and quality of life. Diagnosis imposes a number of ethical issues. The importance resides in the fact that prenatal detection represents an indication for therapeutic abortion. Another ethical issue raised is represented by medical care provided, which is exclusively palliative. Both surgical and novel therapeutic methods described by the literature, like endoscopic coagulation of choroid plexes, do not infl uence the neurological status and the neuropsychomotordevelopment (4). All this data should be clearly explained to parents and legal tutors for not raising any false hopes regarding the evolution

COMPUTER METHODS FOR ANALYSIS AND OPTIMIZATION OF ENERGY COMSUMPTIONS

The implementation of sustainable development in Romania and the abrupt increase of prices for fussil fuels have imposed more serious activies for the examination of the energy consumption in different industrial sectors. Here, the asynchronous electric

HEMORAGIA PERI-INTRAVENTRICULARĂ LA PREMATURI: IMPORTANŢA SCREENINGULUI PRIN ECOGRAFIE TRANSFONTANELARĂ

Obiective. Hemoragiile peri-intraventriculare (HPIV) pot determina la sugarii născuţi prematur diferite grade de re tard neuropsihomotor. Un studiu prospectiv efectuat în IOMC pe o perioadă de 4 ani (2009-2012), pe un lot de 160 prematuri, a urmărit prevalenţa gradelor de HPIV diagnosticate prin ecografi e transfontanelară (ETF), identifi carea factorilor de risc asociaţi şi a severităţii afectării neurologice la aceşti pacienţi prin urmărirea lor pe o perioadă de 12 luni. Material şi metodă. Pe perioada studiului, prematurii internaţi în IOMC au fost examinaţi sistematic prin ETF, printr-un protocol standardizat; aprecierea gradelor HPIV s-a efectuat conform clasifi cării Papile. Evaluarea neurologică a fost efectuată sistematic până la vârsta de 1 an. Rezultate. Cel mai frecvent înregistrate au fost HPIV I şi II – 45%, respectiv 37,5% din numărul total de pacienţi. HPIV gradul IV au reprezentat 4,4%. În HPIV grad I şi II afectarea neurologică a fost uşoară, această corelaţie având semnifi caţie statistică (p < 0,01) pentru ambele forme. Hemoragiile gradul III şi IV au fost asociate cu o evoluţie neurologică nefavorabilă, corelaţia între HPIV grad IV şi sechelele neurologice majore având semnifi caţie statistică (p < 0,01). Concluzii. ETF efectuată de rutină tuturor prematurilor permite diagnosticul precoce şi stadializarea HPIV, aprecierea evoluţiei neurologice cu instituirea precoce a tratamentului şi asigurarea consilierii adecvate

PERI-INTRAVENTRICULAR HEMORRHAGE IN PRETERM INFANTS: THE IMPORTANCE OF SCREENING BY TRANSFONTANELLAR ULTRASOUND

Objectives. In preterm babies, peri-intraventricular hemorrahges (PIVH) might cause various degrees of neuropsycho-motor impairment. A 4-year prospective study (2009-2012) performed in the IOMC, was aimed to determine the prevalence of different degrees of PIVH diagnosed by head ultrasound (HUS) among 160 admitted preterm babies, the associated risk factors, along with the neuro-developmental effects on a 12-month follow-up period. Material and methods. In the above-mentioned period all admitted preterms were examined by transfontanelar ultrasound according to a standardized protocol based on Papile’s PIVH classifi cation. For those preterms included in the study a 12-month systematic neurologic follow-up was performed. Results. PIVH grade I (45%) and II (37,5%) were the most prevalent types. Grade IV PIVH represented 4,4% from all PIVH cases. The good neurological outcome of grade I and II PIVH, was found to be statistically signifi cant (p < 0.01) for both types. Severe neurological sequelae were associated with grade III and IV and a statistically signifi cant correlation (p<0.01) was found only for grade IV hemorrhages. Conclusion. Systematic HUS screenings for all preterm babies is useful for early diagnosis and PIVH staging, for neurologic outcome prediction, providing the appropriate management strategy and a well-suited parental counseling

Multi-Level Evaluation of UV Action upon Vitamin D Enhanced, Silver Doped Hydroxyapatite Thin Films Deposited on Titanium Substrate

Hydroxyapatite Ca10(PO4)6(OH)2 (HAp) is an important bioactive material for bone tissue reconstruction, due to its highly thermodynamic stability at a physiological pH without bio-resorption. In the present study, the Ag:HAp and the corresponding Ag:HAp + D3 thin films (~200 nm) coating were obtained by vacuum deposition method on Ti substrate. The obtained samples were exposed to different UV irradiation times, in order to investigate the UV light action upon thin films, before considering this method for the thin film’s decontamination. The effects of UV irradiation upon Ag:Hap + D3 are presented for the first time in the literature, marking a turning point for understanding the effect of UV light on composite biomaterial thin films. The UV irradiation induced an increase in the initial stages of surface roughness of Ag:HAp thin film, correlated with the modifications of XPS and FTIR signals. The characteristics of thin films measured by AFM (RMS) analysis corroborated with XPS and FTIR investigation highlighted a process of recovery of the thin film’s properties (e.g., RMS), suggesting a possible adaptation to UV irradiation. This process has been a stage to a more complicated UVA rapid degradation process. The antifungal assays demonstrated that all the investigated samples exhibited antifungal properties. Moreover, the cytotoxicity assays revealed that the HeLa cells morphology did not show any alterations after 24 h of incubation with the Ag:HAp and Ag:HAp + D3 thin films