Position control for intelligent pneumatic actuator using generalized minimum variance control

Pneumatic actuators are finding increasing acceptance these days due to their low cost, ease of maintenance and moderately high power to weight ratio. A position model for IPA has been proposed by using system identification techniques resulted in a transfer function model. Generalized minimum variance control (GMVC) is one of the commonly control algorithms that used in the pneumatic actuators area. The performance of an algorithm is obtained by combining a generalized minimum variance control with a recursive estimator for the controller parameters. In this project, an indirect self-tuning generalized minimum variance control is used to assure the system output response can track any changes in the reference set point. This project aims to design generalized minimum variance controller to control the position of the IPA. The controller will be designed using MATLAB/SIMULINK based on the proposed models. The simulations results will be compared with the other types of controller (fuzzy logic controller) simulation results in order to see the performance of the GMVC

Minat, Aspirasi Kerjaya dan Sikap Terhadap Mata Pelajaran Rekaan dan Jahitan Pakaian dalam Kalangan Murid

The study is to explore the career, identify career aspirations, factors which determine attitude of students’ towards the RJP subject and career aspirations. It is also to see the difference in attitude of students towards this subject based on career aspirations and based on their parents’ level of education and occupation. A quantitative survey was carried out among 291 form four students taking RJP subject. Respondents were chosen using a cluster sampling method. Chi-square and ANOVA tests were used to see the relationship and differences between the variables being studied. Level of significance was at p< 0.05. Results show students have career aspirations parallel to the subject they are learning. There is a significant relationship between parents’ factor, [ χ² (6, N=285)=24.542, p=.000, Cramer’s V=.207 ] with respondents career aspiration; between counseling teacher, [ χ² (6, N=288)=20.21, p= .003, Cramer’s V=.187 ] with respondents career aspirations. There is no significant relationship between peers [ χ² (6, N=287)=5.67, p=.458, Cramer’s V=.100 ] with career aspirations of students taking RJP. The findings show those with career aspiration related to RJP have positive attitude towards RJP subject as compared to those with career aspiration not related to RJP F(2,285)=15.77, p≤.05. There is a significant difference between student’s attitude towards RJP based on mother’s occupation, F(8,282)=2.54, p≤.05. However, the result also show there is no significance difference between students attitude towards RJP based on mother’s level of education, F(4,286)=1.49, p≥.05, father’s level of education F(4,286)=.74, p≥.05 and father’s occupation, F(8,282)=0.63, p≥.05. On the whole, students place interest in the Social field as priority and Artistic field as their next area of interest. As such a continuous effort is deemed necessary to develop interest, career aspiration and attitude towards RJP among student enrolled in this subject. This is to enable them to develop interest and career aspiration relevant to RJP

Models of Electric Vehicle Adoption in the United States

In this paper, we develop several models of electric vehicles registrations in the United States. To model registrations, we included a variety of environment, health, financial, and education variables. Data from multiple data sources at both the state-level and county-level were used. We obtained a linear regression model of 62.09% variance explained for our baseline model. We used several machine learning methods to improve the accuracy, highlight nonlinearities, and provide additional insights. The overall predictive accuracy of our Gradient Boosted Machine model is far superior to that of the linear regression model and significantly better than the other machine learning models. Consistent across the predictive models, the most important predictor variables are high school graduation rates, air quality, and solar generation of electricity. We interpret the models and discuss their implications for research and practice, highlighting opportunities for future directions

Rising Political Conciousness: Transformative Learning Among Educated Urban Malays in Malaysia

The purpose of this study is to explore the nature of perspective transformation in the aftermath of the economic and political turmoil of the late 1990s in Malaysia. The study is guided by the following research questions: (1) What triggered the perspective transformation among the selected individuals, (2) How did the process of perspective transformation occur among the selected individuals, (3) What facilitated the process of perspective transformation as experienced by the selected individuals. The researcher conducted a case study on Malaysia's tenth General Election (GE) in 1999. Ten participants were interviewed in this study. They consist of educated Malays with an average age of forty years old, married with an average of four children, and living and/or working in the Klang Valley. The participants were selected using the snowballing sampling technique. They were chosen based on the following criteria: (1) changing political party membership, (2) voting against one's own party, (3) applying to register as a voter, which was never done before, despite eligibility, and (4) being actively involved in election campaigns. The primary data collection technique used in this qualitative case study was the interviews. A question guide was developed and refined for use in the interviews. The interviews were taped and conducted in a mixture of languages, Bahasa Melayu and English, as such mixture is common among the urban educated Malays .The taped interviews were transcribed verbatim

The Impact of Task Complexity - Decision Aid Fit on Decision Quality in Business-to-Consumer Electronic Commerce

In Business-to-Consumer (B2C) electronic commerce, the conversion rate of lookers-to-buyers averages 2%, 2 buyers for every 100 lookers. We believe that this rate is due, in part, to decision aids that do not fit task complexity. The model developed in this research could have direct implications for electronic commerce enterprises that are trying to increase their conversion rates. Web stores could dynamically detect the current task complexity and either recommend or impose a particular decision aid. A dynamic detection could be tailored to the individual\u27s customer profile or real-time behavior

Predictive Models of Chronic Obstructive Pulmonary Disease in the United States

In this paper, we investigate Chronic Obstructive Pulmonary Disease in the United States 2012-2017. We integrate data from multiple sources and use them to analyze COPD at the level of core-based statistical area. We include cigarette smoking and race / ethnicity categories because of well-known health disparities in the United States. We develop a baseline model with multiple linear regression and then attempt to improve upon it with machine learning methods, including Lasso Regression, Ridge Regression, Generalized Additive Model, Support Vector Machines, Artificial Neural Network, Random Forest, and Gradient Boosted Tree. The best machine learning model, a Support Vector Machine, captures an additional 6% variance explained in a strongly predictive model. Overall, cigarette smoking and household income are the strongest predictors. Future directions for research and practice are discussed

Mencari Relevansi Teori dalam Menganalisis Sikap MPR 1998-2000 terhadap Gagasan Negara Hukum yang Demokratis

A sociological approach is the relevant and appropriate one to clarify the current phenomena in line with administrative law. Its significance can betraced from three views; firstly, interactionand interrelationship among the phenomena: law, economy, politic and culture have been considered more important toward aspects of the current state affairs issue. Secondly, hope, perception, and value are continuously developed and rapidly changeable. Theoretically and practically, the change has an influence to the state affairs system. Thirdly, historically the state affairs form of a country provides as well as constitutes a reflection of dynamic and interaction among politic, economy, law, and cultural dimensionsat that time. Ethical quality and state affair philosophy of a country should be investigated and put into their context

Reformulasi Politik Hukum Agraria

It is thought that the reformulation of the political agrarian is urgently, seriously and effectively managed. This reformulation is required firstly because the political changes, during the New Order regime with its 'developmental ideologi, have ever destroyed the regulations of legal agrarian. Secondly, it is intended to enable the social welfare and human values to be appropriately constructed. The fundamental weaknesses of the Basic Principle of Agrarian Law and the changing bases of the facets of material, social, economy, political and legal customs are also regarded as apart of the opinion of why the political reformulation of the legal agrarian must be enforced immediately. The main point of the reformulation is also concerned with the position of Legal societies and nations, and is should be framed on the equaiity paradigm in law. Another point is that reconstruction of the regulations of authority and land ownership

Performance analysis of Kejuruteraan Asas Jaya Sdn Bhd (KAJ) based on profitability and asset management / Nur Ezzah Kamis

This study is conducted to identify financial performance of Kejuruteraan Asas Jaya Sdn Bhd based on asset management and profitability. From that, the analysis of asset management and profitability performance will be carried out. From this the company can know their financial performance for their company and can make any correction and give some ideas in order to improve their performance. To analyze the data, financial statement of the company will be used to generate data. Financial statement is a secondary data for this research. To analyze the data, basic tools will be used. The profitability ratio and asset measurement ratio will be used in order to get the analysis. There are four types of common profitability ratios gross profit margin, net profit margin, return on asset and return on equity. Others are four types of common asset measurement ratio inventory turnover, account receivable, average collection period and total asset turnover. The analysis is based on five years later that compared for each year based on asset measurement and profitability measurement. This analysis is helping the company to improve their performance. From the ratio, it show that both ratios decreased regarding their profit also decreased