Most of the stability study of induction motor is based on conventional steady state torque-speed characteristics. Stability study during transient conditions and rigorous analysis based on full nonlinear dynamical model are rather rare in literature. With this objective, stability analysis using the Lyapunov’s criteria is pertinent. Global asymptotic stability of induction motor in the sense of Lyapunov is analyzed considering the full nonlinear dynamical model about a steady state operating point, in stationary α-β reference frame. Energy and power balance equations are derived. These equations are used to obtain a suitable candidate for Lyapunov function. Conditions for global asymptotic stability in the sense of Lyapunov are derived at any operating speed, with load and without load, with parameter and synchronous frequency variations. These conditions of stability are generalized in terms of operating speed, load, synchronous frequency and motor parameters. A case study is also presented.

The main goal of this paper is to define and study of Rainville\'s matrix polynomials. The integral form, typical families of linear, bilinear and bilateral generating matrix functions are obtained and gives expansions of these polynomials. The active differential operator on Rainville\'s matrix polynomials and their applications, some matrix recurrence relations are derived and the matrix differential equation is obtained. Subsequently, Rodrigues\'s formula are then developed for Rainville\'s matrix polynomials. Furthermore, we give the generating matrix functions for Rainville\'s matrix polynomials, involving the Horn\'s matrix functions of two variables and hypergeometric matrix functions of three variables.

Objectives: This double-blind placebo randomized control trial was designed to investigate the effect of intraoperatively administered urinary trypsin inhibitor (UTI) on acid–base balance and tissue oxygenation after abdominal radical hysterectomy.\n\nMethods: 40 patients undergoing elective major abdominal surgery for gynecologic cancer were allocated into two groups: group N (normal saline group) and group U (UTI group). After induction of general anesthesia, UTI 300,000 IU mixed with 100 ml of normal saline was intravenously administered in Group U, and 100 ml of normal saline was administered in Group N. Arterial blood gas analysis (ABGA) was performed immediately after induction (T1), at the end of the main procedure (T2), at the end of the surgery (T3), and on the morning after surgery (T4). \n\nResults: Lactate concentration was significantly higher at T4 in Group N than in Group U, and pH level was significantly lower at T2 and T3 in Group N than in Group U. P50 was shifted more rightward at T2 and T3 in Group N than in Group U.\n\nConclusion: Administration of UTI in patients undergoing major abdominal surgery alleviated metabolic acidosis and helped improve tissue oxygenation during and after surgery.

Introduction. Clinically relevant color assessment of direct composite restorations supported by esthetic post materials has not been evaluated by using digital color analysis technique in vivo conditions.\nThe purpose of this study was to determine influence of 2 different esthetic post materials on the final color of direct composite restorations by using a digital technique in in vivo conditions.\nMaterial and methods. Twenty-two pulpless incisor teeth treated with conventionally cemented zirconia (Snowpost) (n=11) and polyethylene fiber (Ribbond) (n=11) posts were incorporated to study. Definitive restorations of teeth were formed using a layer of a hybrid resin (Clearfil AP-X). For direct composite restorations and contralateral control teeth, color was measured using a digital technique. The Commission Internationale de L’Eclairage, or CIE, L*a*b* and RGB color systems were investigated. Descriptive statistical analysis was performed for the CIE L*a*b* values. Color differences (ΔE) for the average L*, a*, and b* color parameters between every pair of groups were calculated.(P>.05)(version 13.0; SPSS, Chicago, Ill) \nResults. Significant differences were not found the color difference Luminosity (lum), R,G,B, and L* a* b* values between the zircon-rich glass fiber post(Z) and contralateral control teeth(Cz) (P>.05) and between the polyethylene fiber post(P) and contralateral control teeth(Cp)(P>.05). However, there was statistically significant difference between the color a* values of the polyethylene fiber post(P) and contralateral control teeth(Cp) (p<0.05). Color differences (ΔE) between the zircon-rich glass fiber post(Z) and contalateral control teeth, and the polyethylene fiber post(P) and contralateral teeth was not found statistically significant (P>.05). \nConclusions. This study attempted to determine effect of 2 esthetic post and core materials to final shade of definitive restorations. Definitive restorations were effected in equal ratio by both of them. Both materials can use reliability in clinical practice. However, there are necessity to the research which focused to effect of intraoral conditions.

Today, one of the topics of interest to researchers, teachers and fade the authority of the universities. Looking at the facts in the case and comparison with historical context, researchers have come to question Drs Why today; some of the professors at the university level have less authority. To this end, this paper tries to focus on the economic and demographic factors, the answer to this question. The method used in this study was a descriptive study using survey techniques and tools for data collection, the questionnaire. Population, who are masters of PNU Kermanshah, in the academic year 2011-2012, the total, is equal to 258. Due to the large size of population, the sampling schedule Lane, No. 258 of them, were selected for the study based on a stratified random sample was selected. In the current study, the evaluation of face validity, and construct validity based on factor analysis, was used. To determine the reliability of each variable item, Cronbach\'s alpha was used. Results using statistical software Amos21 SPSS21 and analyzed, respectively. \nTraditional authority equal to the mean after 13.57, the authority Charisma 13.54, and the intellectual power of 18.72 is. These dimensions compared with the mean expected for these dimensions were 15 traditional authorities, power, charisma, 12, 15 is rational authority. The results show that, relative deprivation and authority between teachers (r= -0.301), the use of mass media, and the authority of teachers (r=0.161), monthly income, and the authority of teachers (r= -0.153) there is a significant relationship. Also, the comparison of means indicates that the average power level of teachers in different academic disciplines, and this difference is significant f test. Teachers might mean for individuals with different degrees also vary. Multiple regression results show that the level of traditional authority (T =4.335), self esteem (T =3.925), charismatic authority (T =3.878), and relative deprivation (T =-2.287) Taken together they amount to 0.42 of the variable changes within the authority of the teachers, they explain. It also shows the results of the structural equation, insignificant chi-square value of CMIN, equal to 211.143, the square root of the residual mean square, or RMSEA equal to 0.075, RMR index, or root mean square of the residuals is equal to 0.098, the ratio of chi-square to degrees of freedom CMIN / DF, the model 3.199, CFI comparative fit index equal to 0.926, and the comparative fit index thrifty PCFI, equal to 0.671 are. Indicators and adaptive thrifty calculated to assess the generality of the model show that, in the aggregate, have collected data, support the theoretical model will be developed.

In the present paper we investigate the upper bound of the Hankel determinant H3(1) for functions starlike and convex with respect to symmetric points.

An experiment was conducted on wheat variety, Pasban 90, at Post Graduate Agricultural Research Station (PARS), University of the Agriculture Faisalabad during 2009-10 to study the effectiveness of a bio-extracts (Neem leaves extract @ 400 ml acre-1, Neem seed kernel extract @ 600 ml acre-1, Ginger extract mixed with Neem leave extract @ 500ml acre-1) and a Bio-agent (Chrysoperla Carnea @ 4000 larvae acre-1) against wheat aphid. Neem leaves extract mixed with Ginger extract significantly lowered the aphid mean population 1.10 (86.08% mortality, per tiller followed by Neem Leave extract mixed with surfactant, where mean aphid population remained 1.95 (82.20% mortality) and Neem seed karnel extract where mean aphid population recorded was 2.28 (81.27% mortality) per tiller after 24 hrs, 72 hrs, 7 days, 15 days and 22 days. Chrysoperla Carnea also reduced the aphid mean population to some extent ie mean aphid population was 8.14 (29.49%) in compression with check treatment after 24 hrs, 72 hrs, 7 days, 15 days and 22 days. Yield data per acre showed significant differences among each treatment.

Catalytic activity of the Au catalyst(s) for the complete propane oxidation was investigated. The results showed that the nature of both Au precursor and support strongly influence catalytic activity of the Au catalyst(s) for the propane oxidation. Oxidation state, size and dispersion of Au nano particles in the Au catalysts, surface area, crystallinity, phase structure and redox property of the support are the key aspects for the complete propane oxidation. Among the studied Au catalysts, the AuHAuCl4-Ce catalyst is found to be the most active catalyst

A new series of N-(5-chloro-9,10-dioxo-9,10-dihydroanthracen-1-yl)furan-2-carboxamide derivatives N1, N3 and N5 were synthesized and tested in vivo using Triton WR-1339-induced hyperlipidemic rat as an experimental model for their hypolipidemic activity. \nThe tested animals were divided into six groups: Normal control, hyperlipidemic control, N1, N3, N5 and bezafibrate groups. At a dose of 15 mg/kg body weight, Compound N5 has shown a significant reduction in triglyceride level (66.5%) after 18 h in comparison to the hyperlipidemic group. Furthermore, high-density lipoprotein-cholesterol levels were remarkably increased in compound N5 (p < 0.001), also it shows a significant reduction in low-density lipoprotein-cholesterol level (p < 0.001) in comparison to the hyperlipidemic group. Furthermore, the total cholesterol level was reduced by 85% after 18 h in compound N5. While, compounds N1 and N3 were inactive. \nThe present study demonstrated new properties of N-(5-chloro-9,10-dioxo-9,10-dihydroanthracen-1-yl)-5-methylfuran-2-carboxamide (N5) as a potent lipid-lowering agent. It is therefore reasonable to assume that this compound may have a promising potential in the treatment of hyperlipidemia and coronary heart diseases.

Classic constrictive pericarditis is characterized by the fibrous scarring and adhesion of both the visceral pericardium and the parietal pericardium leading to restrict cardiac filling. Constrictive pericarditis with normal thickness pericardium without calcification is still a challenge. We describe a rare case of idiopathic localized constrictive visceral pericardium with normal thickness of the parietal pericardium in a middle-aged man. Pericardiectomy with complete decortication was performed and patient was recovered and back normal life.

Secure CAPTCHA challenges on one hand protect diverse web resources from automated bots but on the other impose severe accessibility challenges rendering the service unusable if they are not implemented correctly. Growing demand of multilingualism in websites and web applications has made multilingual implementation of web user interfaces and dialogs necessary. Currently, insecure English language CAPTCHA challenges are implemented in majority of websites offering their content in one or more languages besides English language. This paper analyzes various Government and corporate websites in terms of multilingual and CAPTCHA functionalities to access their accessibility and usability. It reviews various open and closed source CAPTCHA scripts and services currently being used to implement CAPTCHA challenges and enumerates their deficiencies. It discusses the design, algorithm, pseudo code, and working of a multilingual text CAPTCHA script with accessibility features that can be used to implement CAPTCHA tests in various languages. The designed CAPTCHA script offers localized onscreen keyboard, random patterns, fonts, and audio alternatives to improve usability and security. The results of experiments, security tests, and users study with the CAPTCHA tests generated through the proposed technique have validated its design, security, usability, and accessibility.