Development of Chemical Reactivity Hazard Tool For Process Safety System

The major hazards with which the chemical industry is concerned are fire, explosion and toxic release. All the hazard in the chemical industry can be relate to their reactivity. The reactivity plays an important role as the chemicals have their specific attributes of their own. So, in assessing the damage potential and causes or errors which have led to these disasters, an analysis has to be done. The impacts of reactivity in the process industries may be predicted based on the database. However, the applications of these models require competency in computer programming. Therefore, the objective of this project is to develop an application called the Chemical Reactivity Hazard System (CRHS), which is able to study the impact of chemical reactivity in the process industry. The CRHS application is developed using Visual Basic (VB) programming language. The develop software utilizing an established database for the chemical reaction in order to generate the result of hazards. With the reaction, the application shows the respective hazard codes and their description. . The software has been tested with few case studies and the results shows a good agreement with the other results from different softwares. The development of this software has been divided into four stages, which are planning the application, collecting the required database, writing the computer programme, and integrate the result into the software. The software is capable to estimate the reactivity hazard of chemicals in the industries and it is designed in a flexible way, so the users can add more chemicals if they did not find their target one. The hazard code will give us the data for tackle such problems if it occurs in the industries. It gives us the first layer of protection against the hazards. The CRHS application is useful and feasible because it is user-friendly, able to function as a stand-alone application and it is compatible with all windows operating system

The Association Between Sanitation, Hygiene, and Stunting in Children Under Two-Years (an Analysis of Indonesia's Basic Health Research, 2013)

Background: This study aims to identify the relationship between sanitation, hygiene, and stunting in children under two-years in Indonesia. Methods: This was a cross-sectional study that examined 9,688 children under the age of two. We obtained data from Indonesia's Basic Health Research paper that was released in 2013 and applied multiple logistic regression analysis. The prevalence of stunting amongst children under two-years in 2013 was 33.3%. Results: Our analysis showed that stunting is closely related to low birth weight, age, gender, exclusive breastfeeding, socioeconomic status, garbage removal, and waste management. Appropriate sanitation and hygiene had a significant impact on stunting amongst children under two-years in Indonesia, with waste management and low birth weight being the most important indicators. Conclusions: Nutrition, socioeconomic status, and a healthy environment are key to ensure children under two-years meet the recommended growth standards

UJI KUALITAS FISIK DAN KINETIKA REAKSI BRIKET KAYU KALIMANTAN DENGAN DAN TANPA PENGIKAT

This experiment was done to find the optimum quali t y of Kalimantan wood briquette f rom merbau t ypes and the combusti on kinet i cs f rom the optimum briquette. The parameter of physical properties was ini t ial and relaxed densi t y, durabili t y, axial compressive strength, and water resistance. Whereas the objective of the combust i on kinet i cs is to find the act ivat i on energy and the pre-exponent i al factor of the optimum bri quette. The variati on of this experiment was briquetting pressure. It was 200 kg/cm 2 , 400 kg/cm 2 , 600 kg/cm 2 , 800 kg/cm 2 , dan 1000 kg/cm 2 , and wi th and wi t hout mollases as the binder. The reactor chamber temperature of combust i on kinet i cs test was 400 °C. From the experiment can be found that the optimum bri quetting pressure was 800 kg/cm 2 for wi t hout binder and 600 kg/cm 2 for wi th binder. The durabili t y value of bi omass briquette wi thout binder was poor, whereas using mollases as binder reduced the axial compressive strength of bi omass bri quette wi th moi ture content 15 %w.b. The water resistance of bri quette at thi s experiment also poor. At 2 m/s and 0,05 m/s combusti on air rate, the activat i on energy of bri quetting pressure 800 kg/cm 2 were 20.52 kJ/mol and 31.16 kJ/mol , nevertheless the act ivat i on energy of briquetting pressure at 600 kg/cm 2 wi th binder were 14.78 kJ/mol and 18.06 kJ/mol

Small sweep

This report presents about the small sweep that had been fabricated with a new design, more efficiency and suitable to use in a mosque. Today, most of the small sweep is function by two hands. For a single hand user, it is not really friendly to them. The idea of the fabricating of this small sweep is based on student’s creativity. The materials selection in the fabricating process of this small sweep is a material with suitable weight, long life-span and can detain force depending on the function. Materials are proposed for the fabrication of the small sweep is aluminium, stainless steel and plastic. This report also focuses on the fabrication process of this small sweep

DESIGN AND PERFORMANCE ASSESSMENT OF A PHOTO-FENTON REACTOR WITH IMMOBILIZATION OF FE ON NAFION MEMBRANE; FOR REMOVAL OF PAHs FROM THE SUPPLY WATER

Polycyclic Aromatic Hydrocarbon (PAHs) presence is detected through various medium in Malaysia, however there is no regulation on limitation of PAHs disposition to the water system. Conventional biological treatment are not able to completely remove the pollutants from the water system. Photo-Fenton chemical oxidation treatment which utilizes hydroxyl radical are able to degrade recalcitrant chemicals such as aromatic compounds. A photo-Fenton reactor is designed with immobilization of Fe on Nafion membrane for PAHs removal from supply water and performing assessment based on its effectiveness and efficiency. Assessment was done to obtain the optimum settings including hydrogen peroxide concentrations, UV light, and retention time. Total Organic Carbon and Chemical Oxygen Demand is taken as the observance parameter to determine the degradation of PAHs. PAHs presence were determine using UV-VIS scanning spectrophotometer. TOC degradation is observed at 94.6% pollution reduction with optimum reaction time of 85 sec and H2O2 concentration of 0.3 mg/L. COD degradation is observed at 87.7% pollution reduction with optimum treatment time of 70 sec and H2O2 dosage of 0.3 mg/L

A review on effectiveness between liquid and solid fertilizer towards the growth of oil palm in nursery / Ahmad Syafiq Norridzwan

Oil palm has surpassed all business vegetable oil trims on the planet in oil generation. The key to the prosperity of oil palm in maintaining its profitability and supportability is because of good manure and sustenance administration. This review was carried out to examine the effectiveness between liquid and solid fertilizer in nursery towards the growth of oil palm. Fertilizer in form of solid and liquid is one of the best agricultural methods since it enhances fertility of soil and gives supplement to the oil palm tree. Through years of decades, good fertilizer and nutrition management of oil palm have become the priority and are continuously applied in all oil palm plantations throughout the world. However, the use of both sorts of manures in some cases can build the cost, prompt to contamination and diminish the compelling and effectiveness of compost application. Results show that liquid fertilizer is better for growth of oil palm seedling while solid fertilizer is more suitable in providing nutrient for oil palm’s productivity. Ultimately, the best fertilizer application is the combination of liquid fertilizer along with solid fertilizer because it will provide more benefit for the productivity of oil palm

THE USE OF HUMOR IN TEACHING ENGLISH FOR NURSING TO IMPROVE STUDENTS’ SPEAKING SKILL WITH HIGH OR LOW LEARNING MOTIVATION

This study aimed at investigating the effectiveness of humor as English foreign language teaching material to improve students’ speaking skill with of high or low motivation for the students and the effect that the use of humor gives to their teaching. Furthermore, this study was quasi experimental research named two-way (two-by-two) factorial design. The population of this study was the fourth semester Students of S1 Nursing Science Program of STIKES Muhammadiyah Kudus which covered 125 students. 80 students, later on, were choosen to be a sample, 40 as experimental group and 40 as control group. Both groups were distributed the pre-test to measure students' speaking skill. For treatment, Shade's (1996) classification of verbal humor was used. It means that the teacher in experimental group used humorous materials such as jokes, riddles and anecdotes related to the topics in each part of the lesson, during the warm up, discussing the topic and teaching new words. While in control groups used story telling material based on his or her life best experience. After 3 times treatments, both groups were distributed the post-test. The results of this quantitative study revealed that humor as teaching material has significant effect on the students’ speaking skill to those who have high and low learning motivation the way that fourth semester Students of S1 Nursing Science Program of STIKES Muhammadiyah Kudus expressed that humor in the classroom situation affected their learning positively to those who have high or low motivation rather than conventional material. Further study may also be conducted to determine whether teachers’ use of humor appears to reduce student anxiety and stress in the classroom to improve students’ speaking skill, retention, and student-teacher relationships. Since a small number of subjects were involved in this study, the results may not necessarily be extended to make a prediction about the entire population.Key words: students’ learning motivation, Humor material, Speaking skill

Plant-Based Diet during the Prepubertal Period and Age at Menarche: A Systematic Review

This systematic review aimed to analyze the effect of a prepubertal plant-based diet, through dietary patterns and its nutritional components, on the age at menarche. Systematic searches through Medline (EBSCO), Embase, Health & Medical Collection (Proquest), Scopus, and Google Scholar for articles published between January 2000 and September 2022 in English using the keywords of plant-based diet, age at menarche, and their synonyms identified 673 articles. Articles were screened through titles and abstracts, as well as full-text reviews based on inclusion/exclusion criteria and assessment of research quality using the JBI Critical Appraisal Tools with a JBI cut-off final score of >50%, leaving 12 articles in this systematic review presented in the PRISMA 2020 flowchart. Data analysis was conducted descriptively by comparing findings between articles. Age at menarche/puberty was reported as an outcome of food intake through a vegetarian diet, Mediterranean diet, vegetable protein, phytoestrogens and isoflavones, and dietary fiber. Based on the analysis of each subgroup, the plant-based diet did not consistently influence the incidence of menarche. In conclusion, a plant-based diet does not significantly affect age at menarche when it is accompanied by a balanced intake of energy and macro-micronutrients. The principles of balanced nutrition and the assistance of nutritionists are needed in practicing a plant-based lifestyle, especially for children and adolescents who are still in the developmental stage

The Effect of Gypsum on the Performance of Intumescent Coating

This study investigates the effect of gypsum to theperformance of intumescent coating. Intumescent or fire retardant coatings are one of the most efficient ways to protect materials against fire. In fact, it is generally known that acid source, carbon source, binding agent and blowing agent are the main ingredients of such a paint. Inthis project work, effect of using gypsum as additive in intumescent coating were investigated by performing fire test to sample coated with certain intumescent coating composition and by using Scanning Electron Microscope (SEM). All the results indicated that gypsum can increase fire retardation time which means intumescent coating modified with gypsum can withstand higher temperature and can last for longer time. This study and improvement of intumescent coating will help the constructions industry by producing better intumescent coating

A Proposal Of OEE Simulation Decision Support Tools For Lean Practitioners

Nowadays, Lean Manufacturing (LM) is a driving method for companies in order to succeed in global competition. Reducing as well as eliminating waste in production line using equipment is the main use of LM innovations. Having an expert in LM is a good way for companies to balance and maintain in order to deliver a good value to the customers. Nevertheless, some aspects are hard for the LM practitioner to evaluate the impact of LM tools at certain desired level after deciding and implementing appropriate LM. Hence, may negatively affect the resources and time consumed as well as cost. The aim of this study is to suggest a simulation framework of LM tools for LM practitioners which are Overall Equipment Effectiveness (OEE) in simulation-based decision support tools (SDST). The architecture of OEE-SDST based on the original framework of OEE concepts by Nakajima (1988). Integrating the average cost by relating OEE efficiency is a one of the new introductions in OEE concepts. The design and development will be built on the Microsoft Visual Basic 2010. The OEE-SDST will operate as graphical user interface(GUI). The usability study of software capability criteria based on ISO/IEC 25010:2011 or ISO/IEC 9126 that consist of understandability, learnability, operability, and attractiveness. Based on the 50 respondents, about 78% are agreed with capabilities of the OEE-SDST. To conclude, OEE-SDST capable of assist the decision making for the LM practitioner