The Effects of Surfactant on Combustion Characteristics of Emulsified Diesel Fuel

Introduction of water into diesel mixture could be used as an alternative fuels to replace natural hydrocarbon resources that are nearly depleted. The emulsified diesel fuel is defined as emulsions of water in diesel fuel, mixed with a surfactant formulation. This emulsified fuel will be a new solution to the pollution and environmental problems. Problem arises when this emulsion tend to demulsify itself over time. In order to get a good and stabilised emulsion, a correct mixture of water and diesel fuel must be produced. Water in Diesel Emulsion (WiDE) is produced with proportion of 5% water content. The emulsions created will be tested for its stability and property compositions such as Carbon, Hydrogen and Nitrogen content, flame point and molecule composition. As the result, Oxygen content in emulsified diesel fuel is more than ordinary diesel fuel and this clearly shown that the emulsion can provide better combustion. Mixing speed provides more stabilised emulsion as compared to mixing time. Therefore, it is useful to apply mixing speed when preparing emulsified diesel fuel

Development and fabricating of mechanical linear sensor base on led and photodiode mechanism / Iskandar Haszman Ismail

A Hydraulic cylinder is a mechanical actuator that is used to give a linear force through a linear stroke. It has many industrial and heavy duty construction applications. Making it an import element due to it is high power to weight ratio. Measuring the linear displacement of hydraulic cylinders is crucial factor for the accuracy concerns in many applications. However, the current linear measurement instruments are expensive with the several limitations; limited distances measuring range, lack of accuracy, heavy weight, required for calibration process and complexity of their system. Therefore, this project is to develop, design and fabricate a linear measurement sensor based on LED (light emitting diode) and photodiode. The mechanical linear sensor device will be design with several major components, such as a roller ball, linear wheel, flexible rod, LED (light emitting diode) and photodiode and the casing of sensor. The ball is held in place by a support wheel and one shaft. As it rolls, the shaft turns with linear motion. At one end of the shafts, a spoked wheel also turns. As these spokes rotate, infrared light signals from a light-emitting diode (LED) flicker through the spokes and are intercepted by a light detector. The dark and light are translated by phototransistors into electrical pulses that go to the oscilloscope to make a data. Finally, the proposed mechanical linear measurement sensor successfully fabricated and operated. Basically it consists of five components; roller ball, linear wheel, flexible rod, LED (light emitting diode) and photodiode and casing of the sensor. It had been design to achieve five meters measuring distance. This project has many applications for what industries required and it comprised a simple components with more advantages such as low cost, reliable, light weight, portable, easy to use and adopt measuring distances

Correlational activity between global warming and lightning density

Lightning discharge in thunderstorms is an indication of the intensity of atmospheric convection which is related to important climate parameters. Due to the interest in global warming, there have been numerous studies looking at the relationship and sensitivity of lightning activity to changes in surface temperature. Many studies have been done specifically in the temperate region of the globe, but number of studies done in the tropics especially Malaysia to identify correlational activities between temperature change and lightning formation is hardly found in the literature. Therefore, this research aims to study and investigate the correlational activity between global warming and lightning density in Malaysia specifically in the area of Johor Bahru and Kuala Lumpur, from 2011 until year 2016, based on data provided by Malaysian Meteorological Department and TNB Research. Statistical analysis of the data shows a positive correlation between temperature and lightning activities. It was found that surface temperature is a key driving factor of daily lightning activities and hence, higher surface temperature will lead to higher number of lightning. Thus, lightning may provide a useful tool for tracking global warming in the future. Outcome of this research work will be useful specifically to utility companies and electrical consultants in Malaysia in designing and enhancing their lightning protection system for better improvement. It will also benefit the public in the sense of educating and understanding the importance of environmental preservation and conservation to help reduce the impact of global warming

Librarian Work Stress at The Library of Universitas Hasanuddin Makassar

This article discusses the work stress for librarians at the library of Universitas Hasanuddin Makassar. The purpose of this study are; a) to find out the work stress in the library of Universitas Hasanuddin Makassar. b) to find out the factors contributing to the work stress of the librarians at Universitas Hasanuddin Makassar. This study employs mixed-methods research that refers to qualitative and quantitative. The data collection methods were carried out through observation, interviews, and questionnaires, so that the data from the research site could be described descriptively. Data processing and analysis techniques are carried out through the stages of data collection, data reduction, data presentation, and data verification or drawing conclusions. The results of this study show that a) The work stress of the librarians at Universitas Hasanuddin Makassar has three symptoms, namely: the most dominant psychological symptoms that the librarians experience are confusion, tension, solitaryness, and decreased concentration; the most common physiological symptoms felt by librarians are fatigue and headaches; and the behavioral symptoms refer to the lack of socialization with friends and procrastination of work. b) The importance of undertaking stress management to minimize the factors causing work stress that can affect librarians, their work, and the work environment. The implementation of stress management is expected to create a healthy work environment in the library at Universitas Hasanuddin Makassar

PERBAIKAN SISTEM PEREBUSAN KACANG KEDELAI PADA USAHA PRODUKSI TEMPE

Kegiatan dimulai dengan survey lapangan ke industri mitra, bertujuan untuk menyelesaikan permasalahan yang terjadi, dakirnya dapat meningkatkan keuntungan.. Sesuai dengan displin ilmu pelakaksana kegiatan, maka bentuk pengabdian yang disumbangkan ke industri mitra berupa paket teknologi , khususnya di bidang Teknik Mesin. Kegiatan Program Vucer telah selesai dilaksanakan dalam waktu 6 bulan. Anggota kegiatan yang terlibat berjumlah 4 orang, terdiri dari 3 orang berasal dari perguruan tinggi serta 1 orang dari industri mitra. Kegiatan pengabdian pada masyarakat ini bekerja sama dengan sebuah industri rumah tangga yang bergerak dalam bidang produksi dan pemasaran tempe. Permasalahan yang dicoba atasi berpusat pada proses pemanasan kacang kedelai, dengan focus peningkatan efisiensi. Hasil akhir kegiatan adalah sumbangan teknologi, terdiri dari dua buah mesin, masing-masing mesin pembuat briket dan sebuah tungku perebusan kacang kedelai. Hasil pengujian mengindikasikan adanya peningkatan dalam bentuk: 1. Efisiensi biaya pemakaian bahan bakar dari Rp.5.500,- menjadi Rp. 3.250,- untuk sekali perebusan 2. Efisiensi waktu perebusan dari rata=rata 30 menit menjadi 25 menit 3. Suasaa kerja yang bersih 4. Kualitas kacang kedelai lebih bersih dan bebas asap

ANALISIS SELF-CITATION PADA JURNAL TERAKREDITASI NASIONAL SINTA UIN ALAUDDIN MAKASSAR

Artikel ini mengkaji tentang self-citation pada Jurnal Terakreditasi Nasional SINTA UIN Alauddin Makassar. Data dikumpulkan dengan cara: 1) menelusuri jurnal UIN Alauddin di SINTA (Science and Technology Index), 2) melacak jurnal UIN Alauddin yang terakreditasi berdasarkan peringkatnya masing-masing di SINTA (Science and Technology Index), dan 3) menyajikan data jurnal dan artikel setiap jurnal ke dalam Microsoft excel yang bersumber dari database SINTA (Science and Technology Index) dan Google Scholar, kemudian dianalisis dan diinterpretasikkan dengan menunjukkan jumlah persentase dan frekuensi. Hasil penelitian menunjukkan bahwa 72.97% jurnal UIN Alauddin yang terakreditasi SINTA terindikasi self-citation. Frekuensi self-citation berkisar antara 1 sampai 14. Jurnal yang memiliki self-citation tertinggi adalah Jurnal JPP, sedangkan Penulis yang melakukan self-citation tertinggi adalah inisial AM. Selain itu ditemukan penulis yang melakukan self-citation tertinggi pada jurnal yang sama adalah inisial S

The relationship between perception of quality and length of service on integrity among Penang civil servant

Malaysia in its effort to become a fully developed nation by 2020 has undertaken a monumental task in instilling noble values into its society including its civil sector. The integrity of the civil servants needs to be greatly improved in order to turn this vision into a reality. This project attempted to examine the level of awareness, knowledge and understanding on noble values particularly integrity among selected civil servants in selected State Government agencies in Pulau Pinang, Malaysia. The respondents were selected based on a purposive sampling technique. The research used a quantitative approach where self-administered structured questions were distributed. Descriptive and inference analysis were carried out to meet the research objectives outlined. The research findings showed that there were civil servants groups who were unclear and uncertain about the meaning of integrity in public sector. Those with shorter length of services were found to be less knowledgeable on the rule and procedure which led to them being unsure about integrity. Length of service was found to be inversely related to the perception on the knowledge of integrity, corruption and quality of service delivery

Investigating the Key Factors Influencing Falling Object Incidents at Construction Sites in Batu Pahat, Johor

Building construction refers to the methods and businesses associated with assembling and erecting structures, particularly those designed for residential purposes. The need for a controlled environment to mitigate the effects of climate change was initially purely functional. A construction site presents a wide range of ever-evolving threats, with risks that are often unique to the construction business. Therefore, ensuring that workers are well-trained and aware of these risks is essential for safeguarding themselves and their coworkers from potential harm or even fatalities. This research aims to explore the root causes and consequences of falling object incidents on individuals, assets, and reputation within the construction industry. Thoroughly analyzing the root causes and consequences of incidents informs the development of a targeted intervention plan. This plan aims to reduce severity and address specific issues, such as inadequate safety measures or equipment failures, with the overarching goal of significantly decreasing falling object incidents. This study employs a survey questionnaire as its methodological tool. The procedure includes conducting literature reviews and incorporating sample survey questionnaires from previous researchers. The methodology used to analyze the statistical data was SPSS software via Reliability Tests, One-way ANOVA Tests, and Correlation and Interferential Analysis. The results revealed a strong statistical correlation (r > 0.5, n = 50, p < 0.05) between organizational/departmental roles and responsibilities, the behavioral behavior of construction workers, incidents at work, health/disease problems, and the consequences of the incident. Therefore, to mitigate all the potential consequences, some intervention plans are being proposed, such as the implementation of Toolbox Meeting (TBM) and Toolbox Talk (TBT), a Toolbox Training Program, and the monitoring of physiological conditions for construction workers to maintain the well-being of the workforce and ensure a safe working environment

Pengaruh Religiusitas dan Keterampilan Sosial Terhadap Kecemasan Bertanding

Based on the results of the author's brief observation at the Tadulako Pencak Silat College, Central Banawa District, Donggala Regency, it was found that the competition anxiety of athletes was still less than ideal. Two factors that were thought to have an effect on the level of competition anxiety of athletes were religiosity and social skills. The aims of this study were: 1) To find out whether there was an effect of religiosity on the competition anxiety of athletes at the Tadulako pencak silat college, Central Banawa District, Donggala Regency; 2) To find out whether there was an effect of social skills on the competition anxiety of athletes at the Tadulako pencak silat college, Banawa Tengah District, Donggala Regency. This study used ex-post facto research design. The instrument to measure the three variables in this study was a closed questionnaire. The population in this study were all athletes from the Tadulako Pencak Silat College, Central Banawa District, Donggala Regency, totaling 28 athletes. The sampling technique used a saturated sampling technique, so that the number of samples was the same as the total population of 28 athletes. The data analysis technique using SPSS application. The results showed: 1) There was no effect of religiosity on the competition anxiety of athletes at the Tadulako pencak Silat College, Central Banawa District, Donggala Regency; 2) There was an effect of social skills on the competition anxiety of athletes at the Tadulako pencak silat college, Central Banawa District, Donggala Regency. As an implication, the results of this study can be used as input for coaches in doing talent scouting and making mental training programs for athletes.Berdasarkan hasil observasi singkat penulis di perguruan pencak silat Tadulako Kecamatan Banawa Tengah, Kabupaten Donggala, ditemukan fakta bahwa kecemasan bertanding atlet di perguruan tersebut masih kurang ideal. Dua faktor yang diduga bisa memberikan pengaruh terhadap tingkat kecemasan bertanding atlet adalah religiusitas dan keterampilan sosial. Tujuan dari penelitian ini adalah:  1) Untuk mengetahui apakah ada pengaruh religiusitas terhadap kecemasan bertanding atlet perguruan pencak silat Tadulako Kecamatan Banawa Tengah, Kabupaten Donggala; 2) Untuk mengetahui apakah ada pengaruh keterampilan sosial terhadap kecemasan bertanding atlet perguruan pencak silat Tadulako Kecamatan Banawa Tengah, Kabupaten Donggala. Jenis penelitian ini adalah penelitian ex-post facto. Instrumen penelitian untuk mengukur ketiga variabel dalam penelitian ini meliputi angket tertutup. Populasi dalam penelitian ini adalah semua atlet perguruan pencak silat Tadulako Kecamatan Banawa Tengah, Kabupaten Donggala, yang berjumlah 28 atlet. Teknik pengambilan sampel memakai  teknik sampling jenuh, sehingga jumlah sampelnya sama dengan jumlah populasi yakni 28 atlet. Teknik analisis data menggunakan bantuan aplikasi SPSS. Hasil penelitian menunjukkan: 1)Tidak ada pengaruh religiusitas terhadap kecemasan bertanding atlet perguruan pencak silat Tadulako Kecamatan Banawa Tengah, Kabupaten Donggala; 2) Ada pengaruh keterampilan sosial terhadap kecemasan bertanding atlet perguruan pencak silat Tadulako Kecamatan Banawa Tengah, Kabupaten Donggala. Sebagai implikasi, hasil penelitian ini dapat dijadikan masukkan bagi pelatih dalam melakukan talent scouting dan membuat program latihan mental atlet. &nbsp

House Of Silver Mobile Application (HOSAPP): Embrace The Art Of Silver Handicraft

“To know is to love”, it is a best idiom to illustrate the need of awareness creation in attracting attention towards a subject. As such, this project focused on the study, design, development and deployment of mobile application as a medium to create an awareness and further attraction toward House of Silver; a niche retailer of silver handicraft. In addition, as cited by Lavidge and Steiner in an article entitled “A Model for Predictive Measurements of Advertising Effectiveness”, effective marketing is to create the awareness of the product. As it is, House of Silver has a hard time to market and attract buyers due to lack of silver-value knowledge among current consumers. Therefore, the objective of this project is to solve the above mentioned issue by utilizing the use of mobile application in creating consumer awareness and attraction toward House of Silver merchandise