189 research outputs found
Comparison of Degradation of Refinery Biomass Through Aerobic and Anaerobic Digestion
This research aims to monitor the pattern of organic degradation of biomass from effluent treatment system by utilizing two distinct methods which are aerobic and anaerobic system. In the wastewater treatment system, the sludge that is used in the treatment will be settled inside the clarifier tank. Some of them will be return as return activated sludge and some of them will be treated either by aerobic system or anaerobic system before being disposed. The organic contents that will be measured are Chemical Oxygen Demand (COD), mixed liquor suspended solid (MLSS) and mixed liquor volatile suspended solid (MLVSS). The sample was obtained from PETRONAS Penapisan Melaka Sdn Bhd (PPMSB) and the experiment is conducted using Anaerobic Sludge Digester. The scope of study will include the characterization of the biomass, the determination of COD, MLSS and MLVSS and the comparison between the aerobic system and anaerobic system. The methodology will include the characterization of the sample, the separation process of supernatant and the sludge, Then the biomass was placed inside the Anaerobic Sludge Digester which is into aerobic and anaerobic reactor with different temperature. Sampling was conducted for the first 24 hours and then continued on daily basis. The final results have shown that there is 88 % of MLSS degradation and 91 % decrease of MLVSS concentration in 24 hours in both reactors and the degradation pattern is successfully obtained. It can be seen that the anaerobic reactor resulted in higher organic content value and also higher degradation rate compared to the aerobic reactor. A comparison will be made for the effectiveness of both methods so that it can be a guide for a better sludge treatment process in the industry
Reproductive performance of Murrah crossed buffalo at Buffalo Breeding Centre, Telupid, Sabah
This study was conducted to determine the reproductive performance and the relationship between the rainfall pattern and the calf mortality of Murrah crossed buffalo managed in extensive farming system in Buffalo Breeding Centre Telupid Sabah. Retrospective data (2004-2011) of calving rate, pregnancy rate and calving interval were collected and analyzed using Microsoft Excel and SPSS software 16.0. Calf births and mortality data and the rainfall records from 2009 to 2011 were also collected and analyzed. The results showed that the mean calving rate was 25%; mean pregnancy rate was 43.6% and mean calving interval was 25.36 months. There was no significant difference detected between rainfall pattern and calf mortality although they were positively correlated (r > 0). Calf birth and mortality were highest during the rainy months each year (October to January). The buffalo also had a longer average calving interval of 740 days and this could be contributed by the nutrition provided and environmental condition of the farm (rainfall, ambient temperature) as well as the fertility of the bull and the dam themselves. It can be concluded that the buffalos in the extensive farm were not performing to their highest reproductive performance when compared with other reports on buffalo reproduction managed extensively
Student’s Readiness Level towards Implementation of paper 3 Subject History
This study focuses on the student towards paper implementation 3 subject of history. This study use where survey research design as many as 50 from respondent 4 in School orchid, Cheras, chosen by gregarious sample and use instrument in obtaining quantitative data. This research using Social learning theory Albert Bandura, theory of constructivism and also Bloom's Taxonomy model. Data analyzed by using Excel Microsoft software 2010 (Statistic pack) 2.0 (SPSS). Finding of correlation analysis show there is a significant relationship between student attitude approach with students’ knowledge towards paper of 3 history subject (r, =.846=, n=50, p<.0.5). Therefore, the paper 3 subject of history is seen as platform that is able to increase the understanding and performance of students in the general history often associated with subjects that are boring and hard to get better performance by students in examinations due to lack of interest, learning techniques are obsolete and inadequate learnin
The effectiveness of business simulation: a longitudinal study
Educators, employers and policy makers have been searching for ways to help their student learn to think. In
order to assist student to think and solve problems, business educators have turned to business simulation as
an alternative way to develop people. Business simulation is a teaching method that can assist in developing a
learning environment, which exposes students to complex situations that needs strategic decision- making. At
Faculty of Economics and Business UKM, business simulation has been integrated in strategic management
course as a platform for students to make management decision in a dynamic environment. A study on 120
students had been conducted to measure the effectiveness of the simulation on a longitudinal basis. Our findings
show that some learning occurred in problem solving, financial management, and production management and
marketing management fields. Conclusively, business simulation is a worthwhile tool to be integrated in
business programs and an effective way to enhance students’ knowledge and skills
Comparison of Degradation of Refinery Biomass Through Aerobic and Anaerobic Digestion
This research aims to monitor the pattern of organic degradation of biomass from effluent treatment system by utilizing two distinct methods which are aerobic and anaerobic system. In the wastewater treatment system, the sludge that is used in the treatment will be settled inside the clarifier tank. Some of them will be return as return activated sludge and some of them will be treated either by aerobic system or anaerobic system before being disposed. The organic contents that will be measured are Chemical Oxygen Demand (COD), mixed liquor suspended solid (MLSS) and mixed liquor volatile suspended solid (MLVSS). The sample was obtained from PETRONAS Penapisan Melaka Sdn Bhd (PPMSB) and the experiment is conducted using Anaerobic Sludge Digester. The scope of study will include the characterization of the biomass, the determination of COD, MLSS and MLVSS and the comparison between the aerobic system and anaerobic system. The methodology will include the characterization of the sample, the separation process of supernatant and the sludge, Then the biomass was placed inside the Anaerobic Sludge Digester which is into aerobic and anaerobic reactor with different temperature. Sampling was conducted for the first 24 hours and then continued on daily basis. The final results have shown that there is 88 % of MLSS degradation and 91 % decrease of MLVSS concentration in 24 hours in both reactors and the degradation pattern is successfully obtained. It can be seen that the anaerobic reactor resulted in higher organic content value and also higher degradation rate compared to the aerobic reactor. A comparison will be made for the effectiveness of both methods so that it can be a guide for a better sludge treatment process in the industry
Cost of compliance with health and safety management system among contractor in construction industry
Accidents and injury statistic in construction industry were among the highest compared to the other sector every year. One of the main reasons that contribute to this problem was due to the insufficient amount allocated for occupational health and safety management. The aim of this study was to identify the contractors approach towards safety and health management system compliance by investigating the cost and benefit of that approach. This study was conducted using questionnaire surveys around the District of Johor Bahru, Johor, Malaysia. The respondents were made of supervisor, engineer and project manager that work with main contractor which the project values worth from RM 1 to 25 million. The data were collected using questionnaire forms and frequency analysis was being used to analyze the data gathered. Overall, this study had identified the different approaches taken by contractor in implementing health and safety management system within organization such as recorded work-related accidents but few for illhealth and most of contractors undertook basic elements but very few of them implemented performance measurement. Cost implication was still is the biggest barrier to implement formal OHSMS. Thus, such implementation was legally driven. This study also manages to highlight what are the nature of expenditure and impact of the implementation to the organization. The cost of compliance varies from minimum 0.15% to 1.08% with average of 0.41% from project value. Most respondents perceived benefits outweighed cost compare to those who thought cost outweighed benefits
A Natural Dye in a Mesophase Region of Cetyltrimethylammonium Bromide/ Octan-l-ol/Water System
A naturally occurring dye, curcumin, was added to a series of lamellar liquidcrystal mesophases consisting of cetyltrimethylammonium bromide (CTAB),octan-1-o1 and water at 30°C. The changes brought about by the addition of the natural dye were followed by optical microscopy and small angle X-ray diffraction techniques. The inter layer spacings of the lamellar liquid crystal mesophases with the natural dye were observed to be lower than the corresponding structure without dye at the equivalent volume ratio of water. The effect of water and the hydrocarbon chain of the lamellar liquid crystal structure were found to be minimal and further inclusion of curcumin prevented the formation of the mesophas
Micropolarity of normal micellar interior associated with the exchange of pentanol
The micropolarity of normal micellar interior of ionic surfactants, sodium dodecyl sulphate (SDS) and cetyltrimethylammonium bromide (CTAB), above critical micelle concentration, associated with the addition of pentanol ( or pentanol/hydrocarbon 50:50 wt/wt) were determined by means of fluorescent probe, pyrene. The results showed a decrease in the ratio of the intensity pyrene emission at higher pentanol content, suggesting a lower micropolarity of the micellar interior at increased amount of pentanol. The micropolarity of the micellar interior with CTAB was, however, found to be higher than the corresponding one with SDS. A transition in the micellar shape was also observed in both of the ionic surfactant systems
The role of self-readiness on information system adaptation
This paper introduces the concept of self readiness in information system (IS) which is
rarely debated either at organizational level or development phases.Most management in organizations or IS developers usually do not show their interest in discussing the role of self-readiness in depth while bringing the IS into organizations, and more focused on user involvement issues.Self-readiness is a self-mechanism in human being to adapt to a new environment and it is a common understanding of human perception in adaptation activity.However, the debate on the concept of self-readiness is remain silent, until the emergence in technology changes bring new challenges to IS users in
adapting themselves with technology overload.This study first overview the theory that derived self-readiness concept and secondly reviews the research stream related on self-readiness.
Evidences from past literature's suggest that self- readiness has generally positive impact on user adaptation in IS usage.The level of individual self-readiness may varied and understanding the right level of self-readiness will lead to better knowledge on how IS is adapted in organizational context. The main contribution of this paper lies in discussion on how self-readiness can be adapted in IS at organization level and more importantly as a mechanism to inform organization employees‟ readiness level
Understanding user satisfaction as key factor in information system success in Malaysian public sector organization
An information system (IS) is a combination of people, hardware, software, infrastructure and trained personnel organized to facilitate planning, control, coordination, and decision making in an organization.IS plays crucial role as a main backbone for an organization to smooth en the business processes.In Malaysian public sector setting, IS are implemented at all department and organization and the question has arise; what is our state of IS currently in public sector organization? Is it success or failure? Continuous monitoring is not a guarantee the success of an IS, but more towards sustaining good IS services provided to IS users.The answer whether an IS is success or failure relies on IS users’ hand since this group of people works directly with IS.This paper proposed two independent variables; user satisfaction and usability to investigate relationship between the current state of IS in Malaysian public sector.This study also targeted operational level worker who using IS as sample. The results will measure satisfaction level among this IS group and more importantly underline new perspective to answer whether our IS in
public sector organization success or failure? Yet, this study also will open new opportunities for those who wants to further investigate IS success in Malaysia context
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