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Kaolin is a clay mineral composed of silica tetrahedral and octahedral alumina layers, which have high absorption capacity and are abundant in nature. This study aims at determining the optimum temperature of kaolin calcination and the effect of variations in pH, stirring time, kaolin mass, and stirring...

As a member of G20 country, group of countries with large economy, Indonesia should has a strong national branding and needs to raise the competitiveness in the international level. Indonesia has "Wonderful Indonesia" that is able to sell the beauty of marine tourism, cultural uniqueness and diversity...

At present, Real-time digital simulation of substation play an important role in analysing the characteristic of the substation, testing relay protection equipment, and building substation training simulation system. In order to create a high degree of similarity with the actual substation, this paper...

The rapid development of technology and changes in the industrial era 4.0 is an innovation in monitoring and control over long distances. One example is the Internet of Things. The advantages of IoT are the particular interest to its users, easy installation, and the fact that it can be controlled remotely,...

2015 Japanese national professional standards for convening an international seminar, marking the Japanese current offer of nearly 500 undergraduate colleges and universities will face "GB" severe test, which will also today's Japanese professional training models and standards have a direct influences....

The deflection solution of concentrated loads on spherical thin shell has already been widely studied. The solution for a concentrated normal force was first obtained by E.Reissner in 1946 by using the classical theory of shallow shells. This problem was also considered by S.P.Timoshenko(1946), Stanislaw...

This article takes the CSI 300 Index stocks and the CSI 500 index stocks in China’s A-share market as research objects, and uses crawler technology to crawl the number and content of stock bar postings and quantify the results. As a variable to measure investor attention and sentiment, the results empirically...

This program of activities was carried out in an effort to help prevent the spread of the epidemic and prevent the transmission of the Covid-19 virus. This prevention effort was carried out by the PKM implementation team by making instant herbal mix herbs made from raw ginger, ginger, secang, cardamom,...

PT. Pertamina is the company with the largest revenue in Indonesia in 2021 and is one of the companies included in the Fortune 500 list and has 5,400 gas stations throughout Indonesia. Therefore, this study needs to be studied to determine the effect of job satisfaction on the performance of PT Pertamina...

In this study, we have prepared ZnO nanoparticles and investigated their structural as well as photocatalytic degradation of methylene blue (MB). Herein, we have explored the synthesis of ZnO nanoparticles at different calcination temperatures (500 ℃ and 600 ℃) by using ZIF-8 as a precursor, which is...

Plastic waste is non-organic material that is difficult to destroy even if it is burned and is often found in the environment around us. This waste comes from households, traditional markets, shops, terminals, and others in the form of plastic food packaging, beverage bottles, plastic bags, and others....

The long QT syndrome (LQTS) is a one type of severe cardiac arrhythmia syndrome that leading cause to unexpected cardiac death, characterized with impaired ventricular repolarization caused by hereditary disorder in sodium and potassium channels on cardiac myocyte and acquired caused by drugs or electrolyte...

Based on the study of Fourier transform infrared (FT-IR) spectroscopy of the unheated and repeated heating soybean oil, the identification method is rapidness for quality analysis of reheated oil measure quickly quality analysis of the cooking oils. The article records the Fourier transform infrared...

Objective: To estimate the presence of depression and impairment of quality of life in primary care and identify correlations with demographics and chronic diseases. Materials and methods: 500 people (220 men) that visited the Gytheio Health Center, Greece, participated in the study answering a study...

Cigarette smoke is a source of free radicals and a trigger for the production of free radicals in the body and has been proven to cause oxidative stress, especially in the lungs. Continuous oxidative stress, causes an inflammatory process and lung tissue damage, the pathophysiology of chronic obstructive...

Distributions of returns on market index are always assumed to be normal. In fact, many researchers argue that the distributions have tails fatter than normal. GARCH models illustrate that this non-normality is because of volatility clustering. This paper investigates the distribution of returns on S&P...

The real-time lane detection and tracking on mobile embedded platform is the key module of lane departure warning and lane keeping systems. In this paper, a framework for lane candidates detection based on improved EDLines and vanishing point estimation was proposed. EDLines directly detects one pixel...

Inventive thinking is a critical skill for generating useful innovations and supporting life and career competencies in the 21st century. This study aims to discover students’ inventive thinking skills across faculties and study programs at a state Islamic university in Central Java. Employing a survey...

Electrocoagulation has been noticed as a prospective technology in textile industry wastewater treatment due to its high color removal efficiency in a simple and environmental friendly method. In this study, a cylindrical EC reactor was used and equipped with a turbine agitator and Al electrodes as baffles....

The sun is an abundant and never-ending energy source, and the conversion is relatively easy, cheap, not influenced by economic, political conditions and pressures from developed countries. Langsa City receives an average annual solar radiation intensity of up to 600 W/m2. One way to get this massive...

A Brushless DC (BLDC) motors synchronous control system based on the CANopen (a communication protocol and device profile specification for automatic embedded systems) protocol is proposed in this paper. Multi-motor control is popular in robot or automation system, and the synchronization is an important...

The excess content of phosphate in laundry wastewater can cause eutrophication. Ion exchange is a method that has been widely used to remove pollutants in wastewater. The study of ion exchange equilibrium is generally carried out by means of adsorption isotherms modelling. The use of adsorption isotherms...

Coconut shell was used as a precursor to prepare activated carbon using potassium hydroxide (KOH) as a chemical activating agent for carbon dioxide (CO2) adsorption at ambient conditions. The purpose of this study was to determine the optimum activation parameters of the activated carbon using Response...

Palm sugar is sugar from coconut sap in the form of crystals. The producers of palm sugar are mostly home industries that process sugar in a conventional way, using wood-fired stoves for thickening sap and the crystallization process is done manually. Improvements to the conventional method carried out...

An aqueous solution containing deionized water, cobalt nitrate hexahydrate (Co(NO3)2•6H2O), ethylene glycol (EG) and urea (NH2CONH2) were reacted in an autoclave with hydrothermal reaction method at 180 oC for 20 h to generate precursors with 0.1%, 0.2%, 0.3%, 0.4% and 0.5% of La (NO3)3. Then the precursor...

Different systems of stratal flooding by mineral or fresh water into oil bearing formation are used today to enhance reservoir recovery. At low temperatures, 25 degrees below zero and lower, there is a great possibility of freezing of the well head equipment due to cyclic flooding or separate horizontal...

The research objective is to find a relation between population growths, land use change of Pekalongan City. Research location based on administrative boundary, which divided into coastal and non-coastal. Data series calculated from 2000-2015 as input correlation. Land use series data derived from Google...

Nitrogen-doped titania (TiO2) photocatalyst were prepared by a simple sol-gel method using tetrabutyl titanate and triethylamine as precursors. The photocatalytic decomposition of methyl orange (MO) solution was used as a probe reaction to estimate the photocatalytic activity under ultraviolet and simulated...

Species of Cassia (family Caesalpinaceae) are well known in India and other tropical countries for their medicinal values. This study evaluates the efficacy of the methanol extract of the leaves of Cassia javanica L. on paracetamol-induced liver damage in experimental rats. The animals were randomly...

Sustainable competitive advantage is the regeneration of temporary competitive advantages where the organization can survive in the long term if it can realize a sustainable competitive advantage. However, in various literature studies, the factors that are antecedents and determinants of sustainable...

In the Research of DIPA Grant in 2019, the size of the hydraulic ram (hydram) pump used in Pakandangan in Padang Pariaman Regency was designed. In this area, a water source had not been utilized to irrigate the paddy field of 10 hectares since it was located higher than the water source. The designed...

This article presents an empirical study that examines the explanatory power of these two models in asset portfolio management. The study analyzes the daily returns of 16 prominent companies in 11 industries and the SPDR S&P 500 from January 2012 to December 2021, using ordinary least squares regression...

The study aims to determine the agronomic characteristics of local upland rice lines resulting from a mass selection. The study was conducted in Petimbe Village, Palolo District, Sigi Regency, Central Sulawesi Province, at an altitude of 500 above sea level, from February to June 2022. The study was...

In China, companies that provide ads monitoring services often hire professionals to verify the actual effect of ads. However, hiring professionals can be costly, so ad verification companies develop ideas that engage video app users to help with the ad verification process. Addressing on a survey taken...

In order to grasp the work of Tianjin Agricultural University in 500 poverty-stricken villages in Tianjin, we have summarized the work in the past three years. By analyzing organization work measures, concrete results and existing problems, we found that the agricultural universities have technical and...

In the Northern Trans-Ural region ticks are dangerous to animals as carriers and reservoirs of viruses and parasitic diseases. New compositions with prominent acaricidal qualities, the majority of which belong to the group of synthetic pyrethroids, are being constantly created against ticks. In the search...

Value-at-Risk (VaR) is a widely used risk management tool in financial markets to quantify potential portfolio losses at a given confidence level. Traditional VaR estimation methods, such as Variance-Covariance, Historical Simulation, and Monte Carlo Simulation, are not efficient when markets exhibit...

The aim of this paper is to research variation of phenolic yields in bio-oil and the effect of interactions of three components in biomass, fast pyrolysis experiments were done with cellulose, xylan (as an alternative to hemicellulose) and lignin in tube furnace at different temperatures. Phenolic yields...

This study investigated the impact of OCF on the level of LA in learners with low English proficiency by examining whether OCF gives different impact on the learners who have different level of LA. This study is qualitative approach which deals students' psychological situation occurred in natural phenomena...

College students are the hope of the nation and the pillar of the country, and their physical level is directly related to the social development and national stability. College students are the middle force in the future socialist construction in China. The talents in colleges are related to future...

This study aims to determine the optimal composition for PIM (Polymer Inclusion Membrane) used for the transport of urea and creatinine. The composition of PIM consists of CTA (Cellulose triacetate) as the basic polymer, TBP (Tributhyl phosphate) as a carrier compound, and 1-Decanol as a plasticizer....

This study aims to determine the optimal composition for PIM (Polymer Inclusion Membrane) used for the transport of urea and creatinine. The composition of PIM consists of CTA (Cellulose triacetate) as the basic polymer, TBP (Tributhyl phosphate) as a carrier compound, and 1-Decanol as a plasticizer....

ZnO sorbents with different CeO2 loadings were prepared by microwave calcination and tested the performance for H2S removal in a fixed-bed reactor at 500 . The results revealed that the Ce-doped sorbents have a higher efficiency and longer breakthrough time compared with non-modified sorbents. The optimal...

Common rail systems in diesel engines offer several advantages over traditional fuel injection systems, such as older mechanical injection systems. These advantages include precise fuel injection control, higher fuel efficiency, reduced noise and vibration, lower emissions and many other advantages....

Adversity quotient used in measuring a person’s ability to respond to difficulty. Sub dimensions of adversity quotient consist of control, ownership, reach and endurance. This study aims to validate the instrument of adversity quotient for Postgraduate students by using the Rasch modelling approach that...

The presented research considers the tribological properties of titanium carbide coatings TiC and their areas of application. It is noted that titanium carbide TiC is one of the most effective materials used as a wear resistant coating. TiC to the greatest extent satisfies the requirements for coatings:...

Our paper practically implements the idea that people can have the best portfolio choice by Markowitz Model. Using a recent 20 years of historical daily total return data for ten stocks from S&P 500, one equity index (S&P 500) and a proxy for risk-free rate (1-month Fed Funds rate), we use Excel...

This study examines the relationship between vocational interests, personality traits, and digital literacy skills, and their impact on academic performance in technology-related fields. Data were collected from 500 undergraduate students using the O*NET Interest Profiler for vocational interests, the...

Broccoli is a vegetable, widely produced in high elevation area of West Java. In its production, farmers use uncontrolled pesticides which are thought to have a large influence on the people who consume them. Allegedly, elevation affects the growth of broccoli and public health. This article reports...

Earthquakes often caused severe fatalities to human beings, as the case of Aceh earthquake 2004, and Lombok earthquake 2018. For the case of Lombok shallow earthquakes 2018, the earthquakes of a magnitude 7.0 have destroyed almost 800 thousand homes, and caused the death of more than 500 people. The...