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The optimization of computer numerical control(CNC) boring operation parameters for aluminum alloy 6063 T6 using Taguchi and Grey Relational Analysis(GRA) optimization technique. Machining industry is playing a crucial role in the present manufacturing scenario and boring is an operation which is quite highly used nowadays to enlarge and achieve greater accuracy of the internal holes. In the present work an attempt is made to select the combination of optimum cutting parameters which results in better surface finish (minimum surface roughness i.e. Ra and Rq) and Circularity (Cr). Machining with optimum cutting parameters will result in minimum machining time and enhance the productivity. Three parameters viz. cutting speed, feed and depth of cut of boring bar has been taken as control factors. The cutting trials are performed as per Taguchi L27(3^3) orthogonal method to deal with the response from multi-variables. Taguchi orthogonal array is designed with three levels of boring parameters with the help of software Minitab 16. Grey Relational Analysis is performed for finding out the optimal parameter setting for the Al alloy 6063 T6 material. Additionally, for analyzing the data, the analysis of variance (ANOVA) technique is used to find the significant factors and their individual contribution in the response function i.e. surface roughness and Circularity.

This paper investigates types of intransitive verbs in Persian. Although six types of intransitive Persian verbs have one argument in their argument structure, they different to their derivation. We divide them into unergative, unaccusative, passive, attributive constructions, middle constructions and ergative. To classify intransitive Persian verb we use the operations like argument suppression, argument structure, argument deletion and externalization, external argument and internal argument (Williams 1981, Marantz 1984). This research supports the absolute theory of argument structure (Jackendoff 1972, Grimshaw 1990, chung 1993) also this study cast hight or the semantic and syntactic aspects of those constructions.

The central purpose of education is to help individuals make necessary adjustments towards a constant changing environment. e-learning is efficient as it eliminates distance and subsequent commutes. The different types of e-learning are based on, means of communication, schedule, e-learning class structure and technologies applied. Positive attitudes can help teachers to deal with the new situation with less stress and so enable them to take steps appropriately in tune with the need of the students and the institution. In this view point the researchers have undertaken this study. The present study was conducted in New Delhi and 800 senior secondary level school students were selected. The descriptive study method was adopted; stratified random sampling technique was used in selecting the samples. A well-designed and pre-tested questionnaire was used to collect primary data. The result revealed that Students’ personal variables such as, gender, subject specialization, parents’ education, parents’ monthly income and school management are differed significantly among themselves. Suitable suggestions are given to improve students’ attitude towards e-learning paradigm.

Polyphenol oxidase (EC 1.14.18.1) is ubiquitous plant enzyme that catalyze the O-dependent oxidation of mono- and o-diphenols to o-quinones. These quinones are reactive species that are able to covalently modify and cross-link a wide variety of cellular nucleophiles via a 1,4 addition mechanism, leading to the formation of polymeric brown or black pigments, which are responsible for significant postharvest losses of fruits andvegetables. Browning of damaged tissues in fresh fruits and vegetables results mainly from the oxidation of phenolic compounds to quinones by PPO. The activation of PPO by sodium dodesyl sulphat investigated, but reports on the effect of some detergents and chaotropic agents on activity of PPO are scarce. Here the effect of detergents and chaotropic agent on activity of enzyme in soluble and in partial purified fraction of PPO of Wild pear was investigated. Sarkosyl acts as a activator of PPO for oxidation of catechol and pyrogallol, although has inhibitory effect in concentrations over 1 mM. Other ionic, Nonionic detergents and Chaotropic agents acted as inhibitors of PPO in soluble and in partial purified fraction. Inhibitory effect of Urea, GnHcl, NP-40 and Sodium cholate in presence of catechol is more than these effect in presence of pyrogallol, but this inhibitory for Triton X-100 in presence of pyrogallol is more than catechol. The same effects were obtained on the partially purified enzyme. Results identified and confirmed the differences in structure and conformation of enzyme in soluble and in partial purified fraction for oxidation of different substrates.

In this paper, a Lotka-Volterra model with time delay is considered. The stability of the equilibrium of the model is investigated and the existence of Hopf bifurcation is proved. Numerical simulations are performed to justify the theoretical results. Finally, main conclusions are included.

In recent years according to the increase of the organizational justice and the effects of the that in results of the organizational systems in case of the reaching the goals and keeping the systems, it took different models and patterns and created new challenging system in order to prevent failing and collapsing and keep system away from dangers which are caused by fast environmental alters, though recent experiments are about checking the effect of the understandings from the organized justice based on the publican fund of the Tejarat Bank’s employees . for this experiment about 4 theories are designed which are in case of the gathering information and ideas from Fernandez questionnaire 2006 and Publican fund questionnaire 1390 which in the end a 46 questions in form of a questionnaire has been formed and given among the Tejarat Bank employees which according to the normal grade of the alters and independency of mistakes and fouls from regression for experiments of theories and from analyzing experiment and toki in grading of organized justice alters in SPSS19 software as results showed up that organized justice and it’s alters which conclude distributive justice , has positive and useful effects on the publican fund of the employees and also grading the organized justice alters showed up that distributive justice comes in the first place and procedural justice comes after it means the second place and in the end interactional justice took the third place of our grading system .

This paper examines twenty-three factors considered important in the selection and patronage of hotels by university lecturers in Abia State, Nigeria. Data were conveniently collected from 285 lecturers in the two government-owned universities in Abia State using self-administered questionnaire containing twenty-three choice statements. Principal component analysis reduced the twenty-three choice items to four factors namely, servicescape, service innovation, spatial layout and service quality. Data were analyzed using ANOVA and multiple regression. The results show that the four factors are important determinants of the choice of hotels by university lecturers in Abia State. Hotel owners and managers were therefore advised to continuously improve servicescape, service innovation, spatial layout and service quality of their hotels for sustainable customer selection and patronage.

This study is to establish the procedure of cleaning validation of Losartan Potassium tables on pharmaceutical manufacturing equipments and analytical method validation by UV spectroscopy. This study develops a procedure and validation analytical method by UV spectroscopy used in cleaning validation. This study is aimed to produce a simple and validated method by UV Spectrophotometer for cleaning validation and develop a system as compliance to the regulatory bodies like USFDA, MHRA, WHO, etc. The method gave good results as compared to official books and guidelines. The analysis of samples by UV is easy as compared to other sophisticated instruments like HPLC, TC. Samples are analyzed effectively by UV Spectrophotometer.

The fact that attendance has a positive effect on the performance of students has been studied by many researchers. This paper provides some evidence on the assumption that the subject of finance requires more teacher-student interaction than the subject of management. Thus attendance and academic performance has more strong relationship for finance than for management subjects. The 170 responses collected from students were analyzed through OLS technique. A stronger positive relationship of attendance and performance was found for Finance as compared to Management. The findings can be applied for other subjects, keeping in view the technicality and non-technicality of the subjects. The limitation in the research has been the variability in the personality of teachers and also the students, which can be very difficult to measure correctly and thus the finding can be different in different scenarios.

Image segmentation is an essential but critical component in low level vision image analysis, pattern recognition, and in robotic systems. It is one of the most difficult and challenging tasks in image processing which determines the quality of the final result of the image analysis. Image segmentation is the process of dividing an image into different regions such that each region is homogeneous. The problem of segmenting the image and/or the video content into meaningful pieces of information is of crucial importance for further steps such as 3-D shape reconstruction, object and event recognition, etc. Video segmentation is different from segmentation of a single image. While several correct solutions may exist for segmenting a single image, there needs to be a consistency among segmentations of each frame for video segmentation. Various image segmentation algorithms are discussed. Some examples in different image formats are presented and overall results discussed and compared considering different parameters.