Global

Line balancing is an effective tool to improve the throughput of assembly line while reducing non-value-added activities, cycle time. Line balancing is the problem of assigning operation to workstation along an assembly line, in such a way that assignment is optimal in some sense. This project mainly focuses on improving overall efficiency of single model assembly line by reducing the non-value added activities, cycle time and distribution of work load at each work station by line balancing. The methodology adopted includes calculation of cycle time of process, identifying the non –value-added activities, calculating total work load on station and distribution of work load on each workstation by line balancing, in order to improve the efficiency of line and increase overall productivity.
Le présent article met exergue les isotopiesphilosophèmes qui constituent la sphère idéique des préoccupations des philosophes/intellectuels. L’auteur examine l’antinomie philosophe engagé-philosophe libre penseur comme axe structurel de la construction des mentalités sociales. L’idée motrice de l’article est la primordialité du patrimoine de valeurs spirituelles sur la matérialité et la fugacité des choses triviales. L’auteur complaint la pauvreté d’esprit des pays où il n’y a quasiment pas eu de tradition philosophiques et, de surcroit, le régime soviétique a balayé toute conscience identitaire.
Merkel cell carcinoma [MCC] is a rare neoplasm of skin with an aggressive behaviour and unfavourable prognosis. MCC mainly occurs in the elderly, in the sun exposed areas of skin. Indian’s experiences regarding patients’ profiles, clinical presentation, age of occurrence, pattern of tumour are very limited as well as challenging. This retrospective study was performed, in a tertiary care hospital in Paschim Medinipur, West Bengal, India, reviewing the cases of five patients. In our cases we try to elaborate data regarding the age of occurrences, presentation, and behaviour of tumour and prognosis of MCC. The patients’ profiles, clinical presentation, age of occurrence & the tumour characteristics including histopathological and immunohistochemical profiles are similar to the cases presented in other parts of world.
Patella fractures and patellar tendon ruptures are mainly due to trauma. Concurrent bilateral patella fracture or concurrent bilateral patellar tendon rupture are even rare. There are case reports that describe concurrent bilateral patella fracture or concurrent bilateral patellar tendon rupture in the literature. This study reports a case of a 23-year-old man who suffered concurrent patella fracture with contralateral patellar tendon rupture due to fall from height by a lift. To our knowledge, this case report describes the first concurrent patellar tendon rupture with contralateral patella fracture.
The calcifying odontogenic cyst (COC) accounts for about 1% of all the jaw cysts, found most commonly within the bone. The lesion shows extreme diversity in its clinical, radiological and histopathological features as well as in its biological behavior. In addition, the calcifying odontogenic cyst may be associated with other odontogenic tumors, most commonly odontoma. Calcifying odontogenic cyst associated with Ameloblastoma and Adenomatoid Odontogenic Tumor has also been reported1. Here we present a case of a 29 year old male patient with a large COC associated with an impacted 38 and involving the left body and angle of mandible with diverse clinical and radiological appearance.
Using the theory of turbulent migration of particles and boundary layer models, expressions for calculation of particle transport coefficients and of mass transfer within the continuous phase are obtained. Various cases of turbulent direct flow of particles through the carrier turbulent medium are considered: smooth and rough channel; channel filled with fine random packing and apparatuses with mechanical mixing. Examples of calculation of mass transfer from droplets and solid particles are included and their agreement with experimental data of other authors is demonstrated.
Segmentation is the need of modern marketing because to serve the entire market is no more profitable. The very first step of market segmentation is to identify which variables are most important to segment or to group the customers into homogeneous groups. Usually more than one variable is used to give the description of market segments. The most common variables used are demographic, geographic, psychographic, and behaviuoral. In the present study demographic and psychographic variables are taken into consideration. The human behavior is dominated by the internal psycho of the individual and the way they treat with the society. The main psychographic variables as values, social interest, attitude and lifestyle are broadly taken into consideration. Cluster analysis is used to segment the market. Factor analysis is used to identify the factors for segmentation.
The main objective of present paper is the development of a summation formulae linked with the Contiguous relation and Hypergeometric function.
Feature Selection is a process of selecting a subset of relevant features from a huge dataset that satisfy method dependent criteria and thus minimize the cardinality and ensure that the accuracy and precision is not affected ,hence approximating the original class distribution of data from a given set of selected features. Feature selection and feature extraction are the two problems that we face when we want to select the best and important attributes from a given dataset Feature selection is a step in data mining that is done prior to other steps and is found to be very useful and effective in removing unimportant attributes so that the storage efficiency and accuracy of the dataset can be increased. From a huge pool of data available we want to extract useful and relevant information. The problem is not the unavailability of data, it is the quality of data that we lack in. We have Rough Sets Theory which is very useful in extracting relevant attributes and help to increase the importance of the information system we have. Rough set theory works on the principle of classifying similar objects into classes with respect to some features and those features may collectively and shortly be termed as reducts.
Aim of the study: The present study was carried out to evaluate the safety of ethanolic extract of celtis timorensis (EECT) by acute and sub-acute toxicity studies. Materials and Methods: Acute toxicity study was conducted in mice by using OECD 425 guidelines whereas sub-acute toxicity study was carried out in rats by using OECD 407 guidelines. In the acute toxicity study, mice were administered a single dose of 2000 mg/kg and 5000 mg/kg orally and then observed individually for the first four hours, then over a period of 24 hours and at least once daily for 14 days. In the subacute toxicity studies, EECT was given orally at doses of 250 mg/kg, 500 mg/kg and 1000 mg/kg body weight daily for 28 days to male and female rats respectively. General behavior, adverse effects and mortality were observed throughout the experimental period. Food intake, water intake, body weight, organ weight, hematological and biochemical parameters, histopathological changes were evaluated. Results: The limit doses of 2000 mg/kg and 5000 mg/kg did not cause any mortality or signs of acute toxicity in the mice tested during the observation period. In sub-acute toxicity tests, the results did not show any treatment related abnormalities in terms of hematological and biochemical parameters. There were no significant differences in body weight and organ weight between the control and treated groups. No morphological changes were observed in the histopathological analysis of the major vital organs (liver, kidney, stomach, spleen, brain and heart) tested. Conclusion: These results concluded that the EECT did not cause any mortality and signs of toxicity in mice (acute toxicity study) and rats (sub-acute toxicity study). The oral lethal dose of ethanolic extract is more than 5000 mg/kg and noobserved- adverse-effect level (NOAEL) of the extract for both male and female rats is 1000 mg/kg per day for 28 days.