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YMER Digital ◽  
2021 ◽  
Vol 20 (12) ◽  
pp. 363-373
Author(s):  
Dr. K Jagadeesan ◽  
◽  
K Malarvizhirekha ◽  

Information Technology in India is an industry consisting of two major components: IT services and business process outsourcing (BPO).[1] The sector has increased its contribution to India's GDP from 1.2% in 1998 to 7.7% in 2017. India's IT Services industry was born in Mumbai in 1967 with the creation of Tata Consultancy Services[7] who in 1977 partnered with Burroughs which began India's export of IT services. Objectives of the study, 1. To analyze the financial performance of selected software companies in terms of liquidity and solvency, positions and to assess the working capital position of selected software companies in India. Methodology of the study, Secondary data is used for the study which is obtained from concerned companies‟ website, NSE website and also from other relevant sites. Ten companies were selected as sample size, on the basis of convenient sampling technique. To analyze the performance of the selected companies, various techniques have been applied, like ratio analysis, mean, standard deviation, coefficient of variation and CAGR Suggestions of the study, The burden of interest has produced a deteriorating effect and reduced the percentage of net profit. It is suggested that a study of productivity and financial efficiency of the software industry of Indian companies. The few companies, which did not follow a definite policy of financing fixed assets, should follow such policy.


MAUSAM ◽  
2021 ◽  
Vol 67 (2) ◽  
pp. 441-454
Author(s):  
A. MOBASSHER ◽  
MD. AMINUR ISLAM ◽  
SOPAN DAS

Based on climatological data of maximum and minimum temperatures of seventeen stations for a period of 60 years (1949 - 2008), obtained from Bangladesh Meteorological Department (BMD), the changing pattern of temperature in Bangladesh has been investigated. Some characteristics of annual variation and spatial distribution of mean monthly minimum, mean monthly maximum and mean monthly temperature, annual variation and spatial distribution of mean monthly amplitude of temperature have been explained. The characteristics of changing pattern of temperature such as standard deviation, coefficient of variation, ratio between mean monthly maximum and mean monthly minimum temperatures have been studied. The run of the temperature in different stations for the years 1949-2008, the periodicity of mean annual temperature and mean decade deviations have been discussed. The integral curve of mean annual temperature for Dhaka has been prepared and explained. Regression analysis for mean monthly temperature of January, April, July and October for the stations Sylhet, Chittagong, Khulna and Rangpur with Dhaka have been analyzed. Some linear correlation equations have been deduced. In the investigation, attempts (as far as possible) have been made to explain the synoptic cause of the changing pattern of temperature in Bangladesh.


Author(s):  
Palwinder Singh ◽  
Lakhvir Singh

Abstract Magnetically assisted abrasive finishing (MAAF) presents an attractive concept of surface and edge finishing by fine magnetic abrasive particles (MAPs). This study aims to contribute an experimental evaluation of the effect of process parameters viz. magnetic field density (MFD), circumferential speed of workpiece, and abrasive grit size on the surface finishing properties in MAAF when experiments were performed for finishing pipes of ASTM B16 brass material with the sintered MAPs. The developed model is based on the obtained experimental data accompanied by “Box- Behnken design (BBD) of response surface methodology (RSM)” analysis. Apart from deciding significant parameters, this analysis also presents the modeling of finishing properties and optimizes the desired performance parameters. Analysis of variance (ANOVA) includes data of standard deviation, coefficient of determination (R2), adjusted, and predicted (R2). MFD and speed show a significant effect on both the responses viz. “surface roughness improvement rate (SRIR) and material removal rate (MRR)”. Analysis has shown that abrasive grit size is the most dominant parameter towards SRIR followed by MFD. The maximum SRIR of 88.12% (minimum Ra 50 nm) and 4.28 mg/min is achieved through multi-objective optimization with 0.8 T MFD, 500 rpm speed, and 300 µm grit size. The mathematical models of SRIR and MRR were also developed using RSM, focusing on varying MFD, speed, and grit size which can be used to predict the desired surface finishing properties. The model generated for SRIR, and MRR has an error of 0.204 % and 2.506 % respectively. Further SEM images were taken to understand the surface appearance of the finished surface.


2021 ◽  
Vol 13 (21) ◽  
pp. 12197
Author(s):  
Ana Dias ◽  
Annibal Scavarda ◽  
Haydee Silveira ◽  
Luiz Felipe Scavarda ◽  
Kiran Kumar Kondamareddy

The aim of this exploratory research is to identify how working from home and the consequent social isolation interfered in teachers’ work and students’ learning and to identify the challenges, difficulties, advantages, opportunities, demands, trends, implications, outlooks, lessons, directions, and feelings of students and teachers in the teaching processes during the COVID-19 pandemic period. To reach its aim, the authors of this paper developed searches and scientific databases and they also sent an email questionnaire to Rio de Janeiro city schools. The descriptive analyses were made by descriptive statistics (proportions, rates, minimum, maximum, mean, median, standard deviation, coefficient of variation—CV). The results show that working from home and the consequent social isolation interfered in the students’ and teachers’ feelings and sensations and highlight the words “frustration”, “hope”, and “strangeness”. From the sample, 96.4% of the teachers affirmed that working from home and the social isolation interfered in their work and 97.4% of the teachers affirmed that working from home and the consequent social isolation interfered in the students’ learning. This research is the starting point to boost discussions on the subjects of COVID-19, working from home, social isolation, and education. This paper will support researchers in the development of future studies related to the subjects.


2021 ◽  
Author(s):  
Zewei Yuan ◽  
Shuang Feng ◽  
Tianzheng Wu

Abstract Ultra-thin dicing blade is usually used to achieve a high precision cutting in semiconductor back-end packaging and assembly. Lots of interactional parameters involving in dicing blade preparation and cutting process bring difficulties to high cutting qualities and good working life of dicing blade. In order to address these problems, this study prepared three kinds of dicing blades and characterized the cutting properties of three dicing blades. It first proposed the abrasive exposure coefficient and tool deviation coefficient to provide parameters for the cutting force model. Then the experimental apparatus was set up to verify the proposed cutting force model. And a series of parameters including feed rate, spindle current, edge chipping coefficient, tool wear amount and grinding performance are used to characterize the comprehensive performance of prepared dicing blades. Finally, the edge morphology was observed under 3D microscope to analysis the hardness of different dicing blades. The theoretical and experimental results indicate that the proposed cutting force model can reflect actual cutting process. There is an inverse proportional function between the shedding of abrasive particles and the hardness of the matrix. The cutting performance of dicing blades is very dependent on the material of workpiece. C-dicing blades presents outstanding comprehensive effects with small chips and good self-sharpening properties.


2021 ◽  
Vol 21 (3) ◽  
pp. 193-199
Author(s):  
O. N. Kolesnikova ◽  
O. V. Fadeikina ◽  
O. B. Ustinnikova ◽  
R. A. Volkova ◽  
A. A. Movsesyants

Phenol is used as a preservative in a number of biological products. Methods that are used for quantitative determination of phenol differ a lot. Current requirements for accredited laboratories include continuous internal quality control. Reference standards with a certified content of the analyte are an effective metrological tool for ensuring such control. The aim of the study was to develop and certify reference standards for phenolic content in biological products, based on comparison of results obtained by GLC, HPLC, spectrophotometric, and colorimetric methods. Materials and methods: diluent for allergens by (candidate reference standard), 2.5 and 5 mg/mL phenol solutions, and 2.5 mg/mL 2-phenoxyethanol solution were used in the study. The experiments were performed using spectrophotometric, colorimetric, HPLC, and GLC procedures. The statistical analysis of results included calculation of the arithmetic mean, standard deviation, coefficient of variation, and analysis of variance with Student’s t-test and Fisher’s F-test. Results: the results of phenolic content determination by the spectrophotometric, colorimetric, and HPLC methods were statistically comparable. The F value obtained for equal sample sizes (n = 40) was F = 0.9343, given the critical value Fcrit = 3.96. A reference standard certified by one of these methods can be used to control the consistency of phenol determination by a relevant method. The results of phenolic content determination by the GLC method showed statistically significantly differences: F = 17.47, given Fcrit = 3.96, which demonstrated the need for certification of another reference standard. Conclusions: two reference standards were certified in the study: reference standard 42-28-449 with the certified phenolic content of 2.56‒3.32 mg/mL, to be used with the spectrophotometric, colorimetric, and HPLC methods; and reference standard 42-28-451 with the certified phenolic content of 2.92‒3.28 mg/mL, to be used with the GLC method.


2021 ◽  
Vol 3 (3) ◽  
pp. 57-67
Author(s):  
Amer Abdul Latif Kadhum ◽  
Salem Bader Mohammad ◽  
Omar Amer Hamed

This research aims to investigate the impact of autonomous maintenance on operational performance dimensions that focuses on cost, quality, delivery, and flexibility.  The research sample has targeted the departments of production operations namely; production, maintenance, projects, and quality in the Baghdad Company for Soft Drinks. Data collected by using a survey questionnaire. In total (86) staff were invited to practice in this survey. There are (81) forms that were valid for statistical analysis. Quantitative statistical methods were used for the purpose of data analysis using the (SPSS V.24) program such as; Cronbach's alpha test, kurtosis and skewness, arithmetic mean, standard deviation, coefficient of variation, Spearman's correlation coefficient, coefficient of determination and impact factor. conclusions, The most important conclusions reached by this research are that autonomous maintenance has a strong statistically significant effect on the dimensions of operational performance, especially cost, quality, delivery, and flexibility.


2021 ◽  
Author(s):  
ABIYOT ALEMU ◽  
abebe G.

Abstract Financial institutions, especially the banking sector plays a crucial role in models of economic growth. It is an essential component of investments; bank Profit/Loss, banks deposits, banks advances and Interest Earning have considerable effect on economic activity and long-term economic growth. The view that, strong financial sector performance has the key to economic growth was reflected in the development strategies and plans in many countries. In Ethiopia, the development of the financial sector is limited, the contribution to GDP is also very low, and most of the banks attention to is on similar services and commercial activities in the domestic banking areas rather than diversified and international banking services. After selection of the study variables the researchers were described the economic growth function of the nation using the GDP Model to show the contribution of deposits, investments, advances, profitability and interest earning on GDP. This study is important to the practitioners, policy makers, and potential researchers by providing recommendable solutions those mitigate the obstacles in banking sector and providing conducive financial and economic theories and models important for the banking institutions and other concerned parties. The general objective of this study is to evaluate the contribution of the banking sector for the growth of GDP of the nation, more specifically it evaluate or measure the contribution of deposits, investments, advances, profitability, and interest earning on GDP of the nation. The appropriate research design adopted for this study was descriptive. From the total of 19 private and public banks in Ethiopia 5 banks were purposely selected (1 public and 4 private) for this study. Secondary sources of data were used for the analysis. All secondary data were collected from the different official publications of respected banks, annual reports and National bank of Ethiopia for five years (2009-2013 GC). The collected data were analyzed with the use of the SPSS (statistical package for the social sciences) program 20v. The percentage, mean, standard deviation, coefficient of variation, correlation and multiple regressions were utilized. The finding shows that Deposit, Investment, Advances, profitability, and Interest earned by Banks have significant effect on the GDP growth of the Nation. The percentage share to GDP in the sector was increased from time to time with an average of 22%, 11%, 18%, 0.86%, and 1.2% respectively.


Author(s):  
M. Mohan ◽  
K. Someshwer Rao

The banks are prime intermediaries in mobilising the resources to various sectors of Indian economy. The flow of bank credit has a positive impact on the growth of the banking sector and contributes increasing the national income, employment and production. The present study analysing the operational performance of the public and private sector banks in India. The purpose of the study two public and private sectors banks SBI, PNB and HDFC, ICICI banks selected. The study period covers five years 2015 to 2019. The data analysis has been done using the ratio analysis, descriptive statistics like mean, standard deviation, coefficient of variation.


Author(s):  
Asmaa Habib Nima

This study examined the impact of strategic renewal on entrepreneurial performance through an exploratory study of banking services in the city of Baghdad. This study aims to determine the impact of context, content and process on entrepreneurial performance represented by strategic orientation, resource orientation, management structure and entrepreneurial culture. A question was distributed to 52 managers of private banks in the city of Baghdad. The research attempts to answer a number of questions, the body of the research problem (Is there a correlation and influence between the dimensions of strategic renewal and pioneering performance, in order to analyze the data obtained from the questionnaires, quantitative methods were used such as the arithmetic mean, standard deviation, coefficient of variation, simple correlation potential and equation modeling) The results showed that the elements of the strategic renewal activities have a significant impact on the entrepreneurial performance .Finally, the study recommends that the management should improve the strategic renewal activities by applying the appropriate activities for the company's work to obtain the leading performance.


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