The Effect of Product Knowledge and Service Quality on Customer Satisfaction

Salim AL IDRUS,Abdussakir ABDUSSAKIR,Muhammad DJAKFAR,Shofiyah AL IDRUS 한국유통과학회 2021 The Journal of Asian Finance, Economics and Busine Vol.8 No.1

Small and Medium Enterprises (SMEs) is one of several activators that drives the economy of Indonesia because SMEs provide jobs, increase Gross Domestic Product (GDP), and assure the delivery of products and services. However, Indonesian SMEs are not very competitive in the industrial world, and one of the causes is the low quality of products that undermine customer satisfaction. There are several factors presumed as influencing customer satisfaction, which among others include product knowledge, service quality, and competitive advantage. The objective of this research is to reveal the contribution of product knowledge and service quality to customer satisfaction with competitive advantage as the mediation variable. This research used a quantitative approach. The causal relationship across variables was examined with Structural Equation Modeling-Partial Least Squares (SEM-PLS). The sample of this research involved 140 respondents. Data was collected through a questionnaire and the items in the questionnaire were processed with a software called SmartPLS version 3.3.2. Results of this research indicate (1) product knowledge and service quality can increase competitive advantage and customer satisfaction in East Java SMEs; (2) competitive advantage can act as a mediator in the effect of service quality on customer satisfaction (3) product knowledge can increase customer satisfaction but the increase is not significant statistically.

Energy Analysis for the Solar Thermal Cooling System in Universitas Indonesia

M. Idrus Alhamid,Nasruddin,Arnas Lubis,KIYOSHI SAITO,Hajime Yabase,Nyaya Aisyah 대한설비공학회 2019 International Journal of Air-Conditioning and Refr Vol.27 No.3

The objective of this study is to analyze all the energy used in the solar cooling system in Universitas Indonesia. This system uses three energies at the same time, namely, solar, gas and electricity energies, which are used to provide a required cooling capacity from the mechanical research center (MRC) building in Universitas Indonesia. The single–double-effect absorption chiller is the main component of the solar thermal cooling system to provide the chilled water that is circulated between the system and MRC building. In this system, heat from solar energy is absorbed by the evacuated tube solar collector and then transferred to the hot water that is used to generate vapor together with the gas at the absorption machine. On the other hand, electricity is mostly consumed by the pumps to circulate the hot, cooling and chilled water, also the working fluids inside the absorption machine. Finally, all the energies used to create a thermal comfort zone in the MRC building based on the Indonesia weathers are reported in this paper.

System Approach for Managing Bactrocera Fruit Fly Pests in Malaysia

M. B. Idrus 한국응용곤충학회 2005 한국응용곤충학회 학술대회논문집 Vol.2005 No.05

Tissue Engineering Initiatives in Malaysia

( Ruszymah Bt. Hj. Idrus ) 한국조직공학과 재생의학회 2006 조직공학과 재생의학 Vol.3 No.1

Effect of superheated-steam roasting on physicochemical properties of peanut (Arachis hypogea) oil

N. F. M. Idrus,W. Zzaman,T. A. Yang,A. M. Easa,M. S. Sharifudin,B. W. Noorakmar,M. H. A. Jahurul 한국식품과학회 2017 Food Science and Biotechnology Vol.26 No.4

Peanut (Arachis hypogaea) is an important source of protein and lipid globally. The effect of superheated- steam roasting on quality of peanut oil was evaluated based on physicochemical quality parameters. Three roasting temperatures (150, 200, and 250 C) were used for different periods of roasting time and the obtained results were compared with those of conventional roasting. At 250 C, superheated-steam roasted peanuts yielded more oil (26.84%) than conventionally roasted peanuts (24.85%). Compared with conventional roasting, superheated- steam roasting resulted in lower oil color, peroxide, p-anisidine, free fatty acid, conjugated diene and triene, and acid values and higher viscosity and iodine values in the roasted peanut oil. These values were significantly different from each other (p\0.05). The fatty acids in roasted peanut oils were affected by roasting temperature and time for both the roasting modes. The superheated steam technique can be used to roast peanuts while maintaining their favorable characteristics.

Study of development of the DECY-13 cyclotron based on applied physics learning

Silakhuddin,Kudus Idrus Abdul 한국물리학회 2022 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.80 No.9

Cyclotron, which is one of the types of particle accelerators, currently has begun to grow in Indonesia that is used for the production of medical radioisotopes. The use development of the cyclotron is supposed to be balanced with domestic ability in understanding cyclotron technology. Cyclotron technology works based on the principles of physics so that the mastery of the principles of physics that will support the understanding of cyclotron technology needs to be studied. A cyclotron facility called by DECY-13 Cyclotron is currently being developed. Studies on the opportunity of the cyclotron for the process of physics learning have been done and discussed in this article. The results of the study show that the DECY-13 Cyclotron has the potential to be developed based on branches of applied physics includes thermodynamics, atomic/plasma physics, nuclear physics, relativistic mechanics theory, electromagnetic theory, physics of electromagnetic waves, physics of magnet and nuclear spectroscopy of gamma rays.

Perspective on Forest Conservation: A Case Study of Community at Gana Resettlement and Integrated Development Project (GRID), Sabah, Malaysia

Yahya, Hardawati,Idrus, Roszehan Mohd.,Talib, Hamimah,Fong, Eunice Institute of Forest Science 2012 Journal of Forest Science Vol.28 No.3

This study was carried out in Gana Resettlement and Integrated Development (GRID) Project as a pioneer model for Community-Based Forest Management (CBFM) in Sabah, Malaysia. The GRID project is developed to improve community livelihood as well as to promote community involvement in CBFM and at the same time to lessen community encroachment and traditional farming practices inside the forest conservation area. The objectives of this study are: (i) to identify the dependency of local community on forest resources; (ii) to examine local community's roles in conserving forest resources and, (iii) to analyze their views on GRID project in conserving forest. Interviews were conducted with randomly selected 130 households at the GRID project using semi structured questionnaires comprising closed and open-ended questions. The study reveals that community dependency on forest resources have lessened after the resettlement of the GRID project. The community shows positive perspective on their contribution for conserving the forest resources. However, the community's willingness to contribute as well as their real contribution can be further improved. The study recommends the government to create more effective training and relevant activities to improve the livelihood of community as well as to increase their positive perception on forest conservation efforts. Further research to strengthen the relationship between local community and forest governance through forest conservation is also recommended.

The effects of low-protein diets and protease supplementation on broiler chickens in a hot and humid tropical environment

Law, Fang Lin,Zulkifli, Idrus,Soleimani, Abdoreza Farjam,Liang, Juan Boo,Awad, Elmutaz Atta Asian Australasian Association of Animal Productio 2018 Animal Bioscience Vol.31 No.8

Objective: This experiment was conducted to investigate the effects of dietary crude protein (CP) level and exogenous protease supplementation on growth performance, serum metabolites, carcass traits, small intestinal morphology and endogenous protease activity in broiler chickens reared under a tropical climate. Methods: A total of 480 day-old male broiler chicks were randomly assigned to eight dietary treatments in a $4{\times}2$ factorial arrangement. The main effects were CP level (21.0%, 19.7%, 18.5%, or 17.2% from 1 to 21 days and 19.0%, 17.9%, 16.7%, or 15.6% from 22 to 35 days) and protease enzyme supplementation (0 ppm or 500 ppm). All experimental diets were fortified with synthetic feed-grade lysine, methionine, threonine and tryptophan to provide the minimum amino acid recommended levels for Cobb 500. Results: Reducing dietary CP linearly reduced (p<0.05) growth performance, serum albumin, total protein, and carcass traits and increased (p<0.05) serum triglycerides and abdominal fat. There was no consistent effect of reducing dietary CP on morphological parameters of the intestine and on the pancreatic and intestinal endogenous protease activity (p>0.05). Protease supplementation improved (p<0.05) feed conversion ratio, body weight gain, carcass yield and intestinal absorptive surface area. Conclusion: Protease supplementation, as measured by growth performance, intestinal morphology and carcass yield, may alleviate the detrimental effects of low protein diets in broiler chickens.

Perspective on Forest Conservation: A Case Study of Community at Gana Resettlement and Integrated Development Project (GRID), Sabah, Malaysia

Hardawati Yahya,Roszehan Mohd. Idrus,Hamimah Talib,Eunice Fong 강원대학교 산림과학연구소 2012 Journal of Forest Science Vol.28 No.3

This study was carried out in Gana Resettlement and Integrated Development (GRID) Project as a pioneer model for Community-Based Forest Management (CBFM) in Sabah, Malaysia. The GRID project is developed to improve community livelihood as well as to promote community involvement in CBFM and at the same time to lessen community encroachment and traditional farming practices inside the forest conservation area. The objectives of this study are: (i) to identify the dependency of local community on forest resources; (ii) to examine local community’s roles in conserving forest resources and, (iii) to analyze their views on GRID project in conserving forest. Interviews were conducted with randomly selected 130 households at the GRID project using semi structured questionnaires comprising closed and open-ended questions. The study reveals that community dependency on forest resources have lessened after the resettlement of the GRID project. The community shows positive perspective on their contribution for conserving the forest resources. However, the community’s willingness to contribute as well as their real contribution can be further improved. The study recommends the government to create more effective training and relevant activities to improve the livelihood of community as well as to increase their positive perception on forest conservation efforts. Further research to strengthen the relationship between local community and forest governance through forest conservation is also recommended.

Effects of Two Herbal Extracts and Virginiamycin Supplementation on Growth Performance, Intestinal Microflora Population and Fatty Acid Composition in Broiler Chickens

Ramiah, Suriya Kumari,Zulkifli, Idrus,Rahim, Nordiana Asyikin Abdul,Ebrahimi, Mahdi,Meng, Goh Yong Asian Australasian Association of Animal Productio 2014 Animal Bioscience Vol.27 No.3

The competency of garlic and pennywort to improve broiler chicken growth and influence intestinal microbial communities and fatty acid composition of breast meat were studied. Two hundred forty, "day-old" chicks were randomly allocated to 4 treatment groups consisting of 6 replications of 10 chicks in each pen. The groups were assigned to receive treatment diets as follows: i) basal diet (control), ii) basal diet plus 0.5% garlic powder (GP), iii) basal diet plus 0.5% pennywort powder (PW) and iv) 0.002% virginiamycin (VM). Birds were killed at day 42 and intestinal samples were collected to assess for Lactobacillus and Escherichia coli. The pectoralis profundus from chicken breast samples was obtained from 10 birds from each treatment group on day 42 and frozen at $-20^{\circ}C$ for further analyses. Fatty acid profile of breast muscles was determined using gas liquid chromatography. Feed intake and weight gain of broilers fed with GP, PW, and VM were significantly higher (p<0.05) compared to control. Feeding chicks GP, PW, and VM significantly reduced Escherichia coli count (p<0.05) while Lactobacillus spp count were significantly higher (p<0.05) in the gut when compared to control group on day 42. Supplemented diet containing pennywort increased the C18:3n-3 fatty acid composition of chickens' breast muscle. Garlic and pennywort may be useful in modulating broiler guts as they control the enteropathogens that help to utilize feed efficiently. This subsequently enhances the growth performances of broiler chickens.