bluuebunny/crossref_metadata_2025 huggingface dataset:
The Potencial of Bamboo Shoot for Health
Authors: Okfrianti Yenni , Herison Catur , Fahrurrozi Fahrurrozi , Budiyanto Budiyanto
Published: March 2022

Bamboo is naturel mixture because it can survive in many habitats and belongs to the order of angiosperms monocots. There are around 1200 – 1500 species of bamboo in the world that grow in hilly areas but do not grow in alkaline, desert and rice fields. Bamboo shoots  can be processed into food and even herbal and traditional medicines. Bamboo shoots are a sourece of fiber that can be used as a nutraceutical. Bamboo shoots contain as much as 2.23 – 4.20 gfiber in 100 wet weights in the form of flour, thin slices and capsules. Dendrocalamus asper bamboo shoot flour, Bambusa tuldoides and Bambusa vulgaris with air content < 10 g /100, protein, lipid and ash content< 3 g /100 g and can obtain mineral content > 60 g /100g. Bamboo shoots are a good source of dietary fiber. This review supports the increasing benefits of bamboo shoots in the supports the increasing benefit in the health world to prevent an increase in blood sugar, as antihypertention, and antihyperuresemia. Bamboo shoots can be processed into fermented products containing Lactid Acid Bacteria (BAL) which are beneficial for intestinal microflora which are recommended as probiotics.
Analyzing The Quality Control Of Milk Production Using Statistical Process Control (Spc) Method In CV. Cita Nasional
Authors: Wicaksana Teja , Sunaryanto Lasmono Tri
Published: March 2022

Farming becomes one of the parts of agriculture development which has values in supplying the food needs in Indonesia. Now, the milk quality from dairy farmers is still below the standard determined by the dairy company, so it causes the milk’s selling price is staying low. Statistical Process Control (SPC) is a device to ensure the production process has qualified the standards and it also functions in supervising the production quality. This research aims to analyze the breakdown and its factors that influence it in CV. Cita Nasional’s milk production. This research used quantitative descriptive approach, a research that describes the occurring events to explain and solve the studied problem. This study used some ways of data collection method, which are: observation, interviews, and documentation. Furthermore, the data analyzing was using assistant device of Statistical Process Control (SPC). Check sheet, Pareto diagram, Histogram, Control chart, Cause and effect diagram. From the calculation result using Statistical Process Control (SPC) (Control Chart) tool aid, we can know about the greatest damage in milk production in CV. Cita Nasional, which is the damage due to 2026, 1 liters of leaking milk, the damage due to the different milk volume with the number of 871, 6 liters damage, and the damage caused by broken packaging with the numbers of 992, 2 liters.
Factors Affecting Food Waste Behavior (Case Study Of Surakarta City Community)
Authors: Saputro Wahyu Adhi , Santoso Aris Prio Agus
Published: March 2022

Recent global issues are always related to food waste. Indonesia is also recorded to have an index value that is in the serious category. Conditions that are quite happening in fact are also followed by high numbers or values ​​of food waste in Indonesia. It is recorded that food waste in Indonesia reaches 300 kilograms of food waste per person every year. The flow of food waste is usually sourced in urban areas caused by many, one of which is the city of Surakarta. This study aims to determine the factors that influence the behavior of food waste in the city of Surakarta. This study used a sample of 30 people from the city of Surakarta. The data analysis method used in this research is multiple regression analysis. Based on the results of the study, it can be seen that simultaneously the independent variables consisting of income level, frequency of eating, education level, gender and number of household members affect the level of food waste. Partially there are only two variables that affect food waste, namely education level and frequency of eating, while the remaining three variables, namely education level, gender and number of household members have no effect on food waste.
Consumer Intention And Perceptions In Online Purchasing Of Vegetables And Fruit
Authors: Listyowati Esi Asyani , Suryantini Ani , Irham Irham
Published: March 2022

Internet technology has changed the shopping behavior of consumers in the world including Indonesia as a developing country. Consumers only have to be connected to internet or online to get the product they want without having to go to the seller directly. Consumers buy online because of a good perception of the use of internet technology to meet the needs of vegetables and fruit. This study aimed to understand the level of intention of Indonesian consumers, determine the perceived usefulness, perceived ease of use, perceived of trust, perceived of risk prevention, and perceived of prices of Indonesian consumers in buying fresh agricultural products via online, which were vegetable and fruit. The method of research data analysis used was descriptive analysis. The samples in this study were 146 respondents which obtained by purposive sampling, which was individual who had bought vegetable and fruit via online at least once from various internet-connected applications. The results showed that according to the use of internet technology consumers felt the benefit in finding product information faster, independence in transactions, trusting that the business identity of the online sellers was conveyed honestly, online sellers sent products at the correct address, vegetable and fruit prices set by online sellers in accordance with the benefits received.
Review of the genus Sundacossus Yakovlev, 2006 (Lepidoptera: Cossidae) with description of one new species from Lombok Island (Indonesia)
Authors: Yakovlev Roman V. , Korzeev Andrei I.
Published: March 2022

The article describes a new species, Sundacossus rinjaniensis sp. n. (Lepidoptera: Cossidae) from Lombok Island (Indonesia). All the species of the genus Sundacossus Yakovlev 2006 are illustrated, the map of the species distribution is given.
First finds of sessile ciliates (Ciliophora) in artificial and natural caverns on the Crimean coast of the Black Sea
Authors: Sergeeva Nelli G. , Abibulaeva Alie S. , Dovgal Igor V.
Published: March 2022

The article presents sessile ciliates (Ciliophora) found during first studies of biological diversity of the underwater part of the artificial canal, created in the middle of the 20th century on the western shore of the Balaklava Bay (Sevastopol, the Black Sea), and the natural coastal Catherine Grotto (Cape Aya, the Black Sea). In total, 4 species of ciliates were found, one of which Cothurnia ovalis Kahl, 1933, is new not only for Balaklava Bay, but for the Black Sea. Description of the species, their systematic position, morphometric characteristics and information about their distribution are given.
UNARTICULATED DESPAIR OF MALE ACID ATTACK VICTIMS; A CRITICAL ANALYSIS
Authors:   PhD Research Scholar (Law), Lovely Professional University, Phagwara, Punjab., Ojal Ms. Ipsita , Kaur Dr. Varinder ,   Assistant Professor, School of Law, Lovely Professional University, Phagwara, Punjab.
Published: March 2022

It is my earnest effort to put forth in this paper the spiraling acid attack cases against men which is generally and largely under estimated. The majority of acid attack victims being young women who had to face the rage of spurned lovers points out that acid attack is a gender-based violence. But the horrific stories of male acid victims are not discussed despite the considerable share of acid attack victims being men. This article aims to delve into and deliberate the abuse and assault faced by men in the form of acid attack, which is not much spoken to about
REFORMING THE LIQUIDITY PLANNING PROCESS OF THE NATIONAL BUDGET - STUDY CASE IN SLOVENIA
Authors:   Assistant Professor, Ljubljana School of Business, M Mrs. Horjak , A Mrs. Gartner ,   Ministry of Finance
Published: March 2022

The constant development of new technologies and tools is forcing organisations to change. In the research part of this article, an example of a concrete process that we had to reform due to the outdated information system that no longer performed the support function for the liquidity planning of the national budget planning process under examination is demonstrated. It includes a presentation of the examined reformation process and the effects of the improvements achieved through the implementation of TAD methodology, the consideration of interviews with the participants in the process, and our own experience gained through cooperation in the development and implementation of the process. Through our own research - analysis of the reformed process - we found that organisational, substantive, technical, and mental changes are necessary, for they enable the organization an improved and quality business, and it is through the appropriate approach that the employees feel more motivated to perform their daily tasks because inclusion in the renovation process adds value to them according to the opinion of 59% of the participants in the reformed process. We found that the reformed process is 50% quicker, saving EUR 3 394.80 in costs per year and that the reformed process makes the acquired data and information more accurate, reducing errors by 72%. We found that through the implementation of the examined reformed process, 466 hours of saved time could be used to produce various analyses and reports enabled by the reformed information system of the examined organisation. This also means added value in further forecasting cash flows and carrying out simulations taking into account certain event scenarios that may affect the liquidity of the national budget.
Inter-rater reliability of Electronic Head Posture Instrument (EHPI) for measuring Cranio-vertebral angle in young adults
Authors:   Research scholar,Department  of Physical Medicine &Rehabilitation, Rajah Muthiah Medical College & Hospital, Annamalai University, Annamalai Nagar, Chidambaram, Tamilnadu, India – 608002 ., Karthik V , Arulpragassame S ,   Lecturer in Physiotherapy, Department  of Physical Medicine &Rehabilitation, Rajah Muthiah Medical College & Hospital, Annamalai University, Annamalai Nagar, Chidambaram, Tamilnadu, India – 608002 ., Parkavi K ,   Lecturer in Physiotherapy, Department  of Physical Medicine &Rehabilitation, Rajah Muthiah Medical College & Hospital, Annamalai University, Annamalai Nagar, Chidambaram, Tamilnadu, India – 608002 ., Harshini S ,   Physiotherapist, Department  of Physical Medicine &Rehabilitation, Rajah Muthiah Medical College & Hospital, Annamalai University, Annamalai Nagar, Chidambaram, Tamilnadu, India – 608002 .
Published: March 2022

Purpose: Forward head posture and degree of anterior translation of head can be assessed using Cranio-vertebral angle (CV angle). Recent literatures use Electronic Head Posture Instrument (EHPI) to measure CV angle without exposing the patient to X-ray. Objective and Study design: This observational study was cross-sectionally designed and aimed to find out the reliability of Electronic Head Posture Instrument (EHPI) in measuring Cranio-Vertebral Angle of young adults. Methods: 100 apparently healthy young adults were assessed for the CV angle by two Physiotherapy student investigators who are skilled in measuring CV angle using EHPI in two separate sessions of 20 minutes gap with the same instrument. The measurements of CV angle by the two investigators were documented and taken for statistical analysis. Results: The mean difference in the Cranio-Vertebral Angle between the two measurements was 0.46 (+/-) 0.79. The inter-class correlation coefficient for inter-rater reliability of Cranio-Vertebral Angle (CV Angle) by Electronic Head Posture Instrument (EHPI) was 0.925, with the corresponding P=0.001. Conclusion: The study results exhibit a significant strong positive correlation between the two measurements supporting a high reliability of EHPI in measuring CV Angle.
Modeling and Simulation of PMSG Wind Energy Conversion System Using Active Disturbance Rejection Control
Authors: Safwan Sadeq  , Mark Ovinis  , Saravanan Karuppanan
Published: March 2022

Electrical power generated from wind turbines inherently fluctuates due to changing wind speeds. Without proper control, disturbances such as changing wind speeds can degrade the power quality factor and robustness of the electrical grid. To ensure good power quality factor, high performance and robustness of the grid against internal and external disturbances, the use of Active Disturbance Rejection Control with an extended state observer ESO for a PMSG Wind Energy Conversion System is investigated. The system has been simulated in MATLAB/Simulink at various wind speeds. The obtained simulation results indicate that the controller maintains constant DC voltage at the interface of the generator-side converter and grid-side converters and achieves maximum power. The results also show that the system performance has good stability, precision and rejection of internal disturbances, with an overall system efficiency of 98.65%.
Improving Electromechanical Impedance Damage Detection Under Varying Temperature
Authors: Mohamed Djemana  , Meftah Hrairi  , Norfazrina Hayati Mohd Yatim
Published: March 2022

The field of structural health monitoring has seen a fundamental shift in recent years, as researchers strive to replace conventional non-destructive evaluation techniques with smart material-based techniques. Perhaps the most promising of smart material techniques for developing structural health monitoring (SHM) systems is electromechanical impedance (EMI) which can be used for real-time structural damage assessment. In EMI, mechanical resonances of structure can be seen in electrical characteristics of piezoelectric transducers due to electromechanical coupling of transducer with the structure. Existence of damage will cause a structural stiffness change and therefore the resonant characteristics of the structure will be altered. This article presents an experimental and numerical study to investigate the effects of notch damage with temperature on the electrical impedance of the piezoelectric sensor used in the EMI technique. The practical implementation of the compact EMI method utilizes as its main apparatus an impedance analyser (Model Agilent 4294A) that reads the in-situ EMI of piezoelectric wafer active sensors (PWAS) attached to the monitored structure. The finite element modelling used ANSYS software three-dimensional (3D) capability to simulate an aluminium beam at varying temperatures. Real-time monitoring of the structure is achieved based on harmonic measurements. The results conclusively showed that the proposed temperature compensation technique eliminates the results ambiguity and enabled the EMI system to detect small damages that were otherwise indiscernible.
Area Optimization of a Flat Plate Collector for Meeting the Air Conditioning Load of an Office Building Using a Solar Vapor Absorption System
Authors: Jayadeep Kumar J.  , James Varghese
Published: March 2022

A solar single effect vapor absorption system is designed to meet the cooling demand of an office building having a floor area of 100 m2. The absorption system operating parameters are optimized using Genetic algorithm to maximize the coefficient of performance (COP). The solar insolation at a location is used as the heat source for the absorption refrigeration generator heat input. The monthly total global radiation at the location for a particular year is found. The insolation profile of a representative day of the year is the input source for the sizing of the solar flat plate collector. Also, the ambient temperature variation profile is used to dynamically simulate the system performance. The refrigeration system is integrated with the solar collector and storage tank to meet the varying cooling load. The total generator load required to meet the cooling load profile of the building is found from the vapor absorption system model in Matlab. The solar flat plate collector system is modelled in such a way that the energy output from the solar collector matches the generator load required. The hot water temperature to generator (heat supplied) is kept constant at 85°C. The generator load required to meet the varying cooling load is achieved by controlling the solution pump flow rate in absorption system. The optimal area of the collector required for meeting the total generator load is found as 14.6 m2. The storage volume required in the storage tank is 0.48 m3. In the solar collector, a variable water flow system profile is used to maintain the constant temperature required in the generator.
A Comparative Study of Wind Characteristics Between South-Western and South-Eastern Thailand Using Different Wind Turbine Models
Authors: Ismail Kamdar  , Juntakan Taweekun
Published: March 2022

Globally, wind energy has proven to be one of the most sustainable sources of energy. Wind energy assessment plays a critical role on determining installation of wind turbines worldwide. This work presents the technical evaluation of wind energy potential using three available wind turbine models for prospective onshore wind farm in the southern Thailand at Krabi and Songkhla sites. Ten-minute interval wind data over a period of 3 to 4 years obtained from Weather Observing Station is utilized to observe the diurnal and monthly wind speed, as well as frequency distribution. WAsP program is applied for energy yield calculations and wind resource maps. Our results reveal that Krabi and Songkhla has the highest mean wind speed of 4.39 m/s in December and 3.91 m/s in February, respectively. The prevailing wind direction in Krabi and Songkhla are north-east and south-east, respectively. WAsP analyses show that the total net AEP for Krabi is 7163.782 MWh, 7762 MWh and 12731 MWh using 275 kW, 300 kW and 500 kW wind turbine models, respectively. Similarly, the total net AEP for Songkhla is 7116.63 MWh, 7775.245 MWh and 12390 MWh using 275 kW, 300 kW and 500 kW wind turbine models, respectively. The total capacity factor for Songkhla and Krabi is 29.1% and 28.3%, respectively. Our results indicate that Enercon E-40/5.40 500 kW wind turbine model produces the highest total gross AEP and total net AEP for Krabi and Songkhla sites. Besides, the Vergnet GEV MP-C 275 kW turbine model shows slightly higher capacity factor in case of both sites. The findings of this study reflect that small to medium size wind turbines can be utilized to generate electricity at the sites.
Design of Oil Water Separator for the Removal of Hydrocarbon from Stormwater Contaminated with Jet-Fuel
Authors: Khailash Dhasan Velautham  , Shreeshivadasan Chelliapan  , Samira Albati Kamaruddin  , John Lawrence Meyers
Published: March 2022

The airport, in general, has a huge catchment area and a hardstand area that includes runways, taxiways, as well as parking aprons. Therefore, these areas are expected to produce a huge volume of stormwater. Besides this problem, the jet fuel and suspended solids contaminate the stormwater flow rate; hence, much consideration should be given in designing the treatment system to ensure that there is no back-flow expected during the high stormwater production to avoid any flooding occurrences in the airports. Currently, the stormwater treatment system in the Malaysian airport is minimal, and there is no specific treatment for the stormwater contaminated with jet fuel in Malaysia. In this paper, an oil-water separator named Corrugated Plate Interceptor (CPI) was explored to treat stormwater contaminated with jet fuel in the airport. Treating the airport stormwater contaminated with oil, grease, or jet fuel could significantly reduce the contamination issue and develop an environmentally friendly airport in Malaysia. The CPI has combs of plates arranged in packs, and this creates the surface areas for the removal reaction of jet fuel and suspended solids between the incoming contaminated stormwater and the plates. Accordingly, in this paper, the design and development of CPI were discussed, particularly on the design criteria for the oil-water separator, standardized tank dimensions, oil storage capacity in the tank, sludge storage capacity in the tank, and finalized plate packs.
Velocity Distribution and Base Pressure Analysis of Under Expanded Nozzle Flow at Mach 1.0
Authors: Ambareen Khan  , Nurul Musfirah Mazlan  , Mohd Azmi Ismail
Published: March 2022

This paper discusses velocity distribution and base pressure control using annular ribs. The annular ribs are located in the enlarged duct. Its impact on the velocity distribution and base pressure changes from a converging nozzle at the sonic Mach number is investigated numerically using ANSYS software. The rib’s height is fixed to 3 mm while the rib’s height is varied from 1 mm to 2 mm. The simulation is performed by placing the rib at various locations in the duct namely 1D, 2D, 3D and 4D and at Nozzle Pressure Ration (NPR) varied from 1.5 to 5. The changes in base pressure (Pb) and velocity variation inside the duct are studied. The presence of rib in the duct causes disturbance in the flow field hence increases the Pb. The tendency of Pb to increase is observed as the height of the rib increases. Varying the NPR from 1.5 to 3 reduced Pb due to shock wave formation. The NPR increases with Pb as the flow undergoes under-expansion due to the expansion fan at the nozzle exit. The changes in Pb are consistent with velocity distribution inside the duct. The increase in turbulent kinetic energy is more significant due to the presence of rib, as compared to duct without rib. For lower NPR, the velocity is found to be highest at the axial direction of the duct while the highest velocity is found just ahead of the nozzle exit at higher NPR.
Comparative Study of Quasi Steady and Unsteady Damping Derivatives for Delta Wings in Hypersonic Flow for Half Sine Wave
Authors: Renita Sharon Monis  , Asha Crasta  , Sher Afghan Khan  , Parvathy Rajendran  , Erwin Sulaeman
Published: March 2022

Correlation investigation of quasi-steady and unsteady damping derivatives of delta wing is analyzed and contemplated, with leading edges bent in the current paper. The current paper realizes that the quasi-steady damping derivative considers only the rate of pitch, not the rate of the angle of attack. In contrast, unsteady damping derivatives account for pitch rate and the rate of the angle of attack. Results show a reformist reduction in the damping derivatives as the Mach number increases in quasi-steady and unsteady cases. Outcomes are computed for a varied range of Mach Numbers and deflection angles due to the pitch rate of different amplitudes of half-sine waves. The outcomes for the damping derivative for a fixed pivot position show different behaviour for different values of the flow deflection angles observed here. As in straight leading edge, even in the curved leading edge, steady-state is attained earlier in quasi-steady than unsteady.
A Study of MHD Free Convection Flow Past an Infinite Inclined Plate
Authors: Husna Izzati Osman  , Nur Fatihah Mod Omar  , Dumitru Vieru  , Zulkhibri Ismail
Published: March 2022

In the present article, we have studied the magnetohydrodynamic (MHD) free convection flow past an infinite inclined plate. In order to explore the effects of velocity, temperature and concentration, Laplace transform technique has been used in this study. This method is adapted to accomplish the analytical solution of governing equation. The impact of various embedded parameter on concentration, velocity and temperature such as chemical reaction, magnetic parameter, radiation and inclination angle has been discussed graphically with numerical results.
Dynamic Modeling and Simulation of the Forward Feed MED-TVC Desalination Plant
Authors: Somar Moaen Habib  , Ahmed Hamed  , Ahmed Yahia Youssef  , Mahmoud Kassem  , Abdalla Hanafi
Published: March 2022

The sudden disturbances in the operating parameters of desalination plants are common, especially when these plants are integrated with concentrated solar power (CSP). These disturbances damage the plants over time and may lead to a complete shutdown. This paper aims to investigate the performance of a forward feed multi-effect distillation plant with a thermal vapor compressor (FF-MED-TVC) which has a high potential for integration with concentrated solar power (CSP). However, the fluctuation and instability of solar energy require the development of dynamic model for the MED process to analyze the transient behavior. Few papers were published in the transient state, especially the forward feed (FF) configuration, as most of the papers focused on the parallel feed (PF) and parallel cross feed (PCF) configuration. Accordingly, a mathematical model has been developed using Engineering Equation Solver (EES) software and validated against data reported from two previous models in the literature, where a perfect agreement was obtained. Then the proposed model was employed to predict the system's response to the most important parameters that may change suddenly in the real operating environment, such as the variation in the motive steam pressure, feed seawater mass flow rate, and temperature. For the same percentage (10%) of these three disturbances, the results indicated that the needed time to return to 95 % of steady state is the longest in the case of increasing the seawater mass flow rate (about 350 seconds after the turbulence is removed), while it is the shortest in the case of increasing the pressure of motive steam (about 50 seconds after the turbulence is removed). In this paper, a comprehensive analysis of the transient performance was performed and a clearer view of the dynamic response was given which enables to optimize the control strategy and improve the stability.
Investigation and Analysis of Air Curtains for the Improvement of Refrigeration Energy Efficiency
Authors: Peem Pongsupat  , Juntakan Taweekun  , Piyanut Saengsikhiao
Published: March 2022

The purpose of this research is to present a warm air infiltration simulation for a cold room, considering the effects of an air curtain. At present, there exist a large number of retail businesses, operating within an industry entailing high investment and competition. Therefore, retail operators must distinguish factors that are essential to lowering their costs, one of which is energy reduction. A survey of energy consumption in stores found that most used energy is due to the cooling system. Therefore, we tested the protection of cold rooms against air inflow by conducting three simulations: 1. Without an air curtain; 2. using an air curtain having a common grille; and 3. using an air curtain with a honeycomb grille. The cold room temperature was set to 1 °C, the cold room door was 200 × 100 m2, and the air curtain was installed 5 cm above the cold room door; furthermore, the velocity of air emitted from the air curtain was 6.5 m/s. Warm air infiltration simulations were carried out using SolidWorks Flow Simulation software, in order to determine the temperature change in the cold room and the airflow direction. From the results of the comparative experiments, when using the different wind grilles, there were differences in the infiltration of warm air. The honeycomb grille reduced air turbulence in the cold room more effectively than the common grille. As a result, the temperature in the cold room was consistent, and the temperature inside the cold room was maintained 10.62% lower when using a honeycomb grille compared to a common grille.
Heating Load of Residential Buildings Using Multiple Linear Regression Artificial Neural Network
Authors: Shafaf Ibrahim  , Saadi Ahmad Kamaruddin  , Nor Anis Nadhirah Md Nasir
Published: March 2022

Global warming is one metric of climate change which is defined as an increase in the average global temperature. Residential buildings contribute significantly to the pollution that causes climate change. It is essential to have a comprehensive understanding of the functions of highly energy efficient buildings in view of projected climate projections, the quality of their heating systems, and the impact on human health and well-being. Thus, in this study, the effects of six input variables which are Overall Height, Glazing Area, Wall Area, Relative Compactness, Roof Area, and Glazing Area Distribution on one output variable, namely Heating Load (HL) of residential buildings was investigated using Multiple Linear Regression and Artificial Neural Network (MLR-ANN) approaches. Two-layer hyperbolic tangent-identity transfer functions with 6-3-1 configurations were employed as it was found as the best neural network model. A dataset of 768 residential buildings was used for secondary data. The Mean Square Error (MSE), determination coefficients R2, as well as the percentage of normalized importance analysis were used to assess the statistical prediction capabilities of the MLR-ANN model. Based on the current findings, Wall Area is the most contributing factor towards HL, followed by Relative Compactness, Roof Area, Overall Height, Glazing Area, and Glazing Area Distribution. It can be suggested that HVAC (heating, ventilation, and air conditioning) systems should be implemented in residential buildings to reduce energy use. Natural ventilation is encouraged in buildings through vernacular design, and radiant heating and cooling systems as it is very effective and efficient way of providing thermal comfort within a structure.
Preliminary Design of Mini Oil Refinery Plant
Authors: Renanto Handogo  , Fery Prasetyo  , Santi Puspita Sanjaya  , Annasit  , Rendra Panca Anugraha
Published: March 2022

As an archipelagic country, Indonesia faces challenges in supplying fuel to various regions. Some regions have small oil reserves and small fuel demand. Other regions have greater fuel demands. One solution to overcome the issue of fuel supply is to build and develop mini refineries with a scale of 6,000 – 20,000 barrels per day to maximize the potential of existing oil reserves, reach remote areas, and meet domestic demands. This study aims to analyze the feasibility of a mini oil refinery from a technical and economic perspective. The feed used for this plant is light crude oil with API gravity 47.3002 from the Belida block, South Sumatra. The plant is designed with a capacity of 10,000 barrels per day to produce intermediate products. The production process at this plant uses a simple process to reduce capital costs, which consists of a Preheater, Pre-Flash Distillation Unit, Atmospheric Distillation Unit, and Vacuum Distillation Unit. From the results of economic analysis, the obtained capital cost of IDR 517,640 million and operational cost of IDR 2,860,622 million. Meanwhile, the payback period is 4.5 years, and the break-even point is 48%. By considering the economic and technical aspects, this Mini Oil Refinery is feasible to be built.
Aligned Magnetohydrodynamics (MHD) Flow of Hybrid Nanofluid Over a Vertical Plate Through Porous Medium
Authors: Asmahani Nayan  , Nur Izzatie Farhana Ahmad Fauzan  , Mohd Rijal Ilias  , Shahida Farhan Zakaria  , Noor Hafizah Zainal Aznam
Published: March 2022

The future research on hybrid nanofluids need to be done as there are many applications of hybrid nanofluids. Some of them are electro-mechanical, renewable energy and manufacturing process application and also the application in automotive cooling. Therefore, this numerical study is conducted to investigate the aligned magnetohydrodynamics (MHD) flow of hybrid nanofluid over a vertical plate through a porous medium. The base fluid (water), silver and copper oxide flowed over a vertical plate in the presence of MHD and porous medium with boundary conditions of constant wall temperature by taking a few types of parameters into consideration. By using similarity transformation, the governing nonlinear partial differential equations are transformed into nonlinear ordinary differential equations. Keller Box method is applied to solve numerically the nonlinear ordinary differential equations and the system is solved by using Fortran programming. The results of the study are illustrated graphically to show the behavior of velocity and temperature also skin friction and Nusselt number of hybrids nanofluid affected by the parameters. It is found that the velocity profiles increase, and temperature profiles decrease when the angle of aligned magnetic field, the interaction of magnetic parameter and local Grashof number increase while the velocity profiles decrease, and temperature profiles increase when the porous parameter and volume fraction of nanoparticles parameter increase. Besides, the skin friction of Ag-CuO-water is less than CuO-water and Nusselt number of Ag-CuO-water is higher than CuO-water.
Fluid Viscosity Measuring Instrument with Internet of Things (IoT) Based Rotary Method
Authors: Herry Sufyan Hadi  , Putri Yeni Aisyah  , Syamsul Arifin  , Ahmad Fauzan Adziimaa  , Arief Abdurrakhman
Published: March 2022

The viscometer is a system measuring the viscosity value of a liquid substance. The function of this viscosity measuring instrument is used to analyze the viscosity level of a particular product so that it is easy to know the quality of fluid viscosity. In this research, two methods were conducted, namely simulation and experimentation. Simulations were conducted using Simulink Matlab while experiments were conducted by designing fluid viscosity measuring instruments by rotary method or commonly known as a rotational viscometer. This tool uses two sensors namely, rpm sensor to measure rpm of dc motor and current and voltage sensor to measure current from dc motor, and also use controller equipped with Internet of Things (IoT) so that the measurement results will be displayed through LCD and can be monitored through the website. From the simulation results obtained drum motor spinning at low speed to the 10th second of the motor rotation about 6 rad / s and as time increases, the motor rotation will increase until the 60th second of the motor rotation begins to be constant this is due to the large shear voltage produced by a fluid at the beginning of the motor is turned on very large and decreases over time. While the test results of the tool that has been designed, obtained the measurement results on SAE 40 Oil obtained accuracy results of 0.99, on the measurement of SAE Oil 20W-50 obtained an accuracy value of 0.99 and in the measurement of SAE 10W-30 Oil obtained an accuracy value of 0.99.
Numerical Analysis of the Effect of Temperature on the Pressure and Film Thickness for Line Contact Elastohydrodynamic Lubrication Using Bio-Based Oils as Lubricants
Authors: Dedi Rosa Putra Cupu  , Kahar Osman
Published: March 2022

This paper develops a numerical model to study the effect of lubricant’s temperature on generated pressure and film thickness formation for the line contact elastohydrodynamic lubrication (EHL) using some bio-based oils as lubricants. In this study, a contact between inner ring and cylindrical roller of rolling element bearing is modelled as the line contact of EHL. The Reynolds equation is simultaneously solved with elastic deformation equation and pressure-viscosity equation. This aims to calculate the pressure distributions and film thickness profiles with a range of seven vegetable oils as bio-based lubricants at the various temperature. Moreover, the minimum film thickness is investigated in more detail to show the effect of the lubricant’s temperature. Obtained results show that palm oil has the highest of the minimum film thickness among other vegetable oils. However, all vegetable oils simulated in this study are suitable to replace mineral oil as lubricant for application of roller element bearing.
Experimental Investigation on Newtonian Behaviour and Viscosity of TiO2/PVE Nanolubricants for Application in Refrigeration System
Authors: Mohd Farid Ismail  , Wan Hamzah Azmi  , Rizalman Mamat  , Abdul Hamid. Hamisa
Published: March 2022

The flow characteristics are highly dependent to viscosity of the fluid. For nanolubricant with different concentration, viscosity change is one of important parameter to be measured to evaluate its functional ability as lubricant. This paper studies about the effect of TiO2 nanoparticle in poly vinyl ether (PVE) at different concentration and temperature. Nanolubricant with volume concentration between 0.01% to 0.1% prepared using two-step method and tested at 40°C, 60°C, and 80°C temperature by using digital rheometer. Beforehand, the colloidal suspension fluid was observed by visual and zeta potential measurement to ensure its stability. The fluid Newtonian behaviour was identified for shear rate up to 1000 rpm. The results shown that dynamic viscosity of 0.01% TiO2/PVE nanolubricant had decreased up to 11% for all measured temperature. For other samples, viscosity increment does not reach more than 1.5% compared to pure PVE oil. It also observed that viscosity increment by the increasing of volume concentration, but it decreases by the increment of temperature. The finding in this study confirms that viscosity of TiO2/PVE nanolubricant effected by both temperature and volume concentration to opposite behaviour.
THEORETICAL FOUNDATIONS OF PREFERENCE FALSIFICATION AND ITS INTERPRETATION IN TERMS OF BUSINESSES
Authors: AKYILDIZ Murat
Published: March 2022

Although there is a large literature on the concept of preference falsification introduced in the mid-1990s, it is difficult to say that it has been adequately addressed in terms of businesses, which are the main actors of economic life. The aim of this paper is to explain what the concept of preference falsification is and how it affects businesses. For this purpose, firstly it is examined psychological roots of preference falsification and also interpreted in terms of morality, by reviewing the academic literature on the subject. In the next section, it is analyzed how its effects on businesses, by examining the reasons and social consequences of preference falsification, as well as it is draw attention to its differences with other businesses practices that lead to behavior change. Finally, it has been concluded that if businesses create an innovative culture that does not allow for preference falsification, they not only increase their competitive power, but also contribute significantly to the creation of a social culture in which all kinds of ideas will be tolerated.
ORGANIZATIONAL COMMITMENTS OF PRIVATE SCHOOL MUSIC TEACHERS
Authors: Demirtaş Erkan
Published: March 2022

The purpose of the present study was to examine the commitment levels of private school music teachers. The organizational commitment scale was used as a data collection tool. The scale consists of three factors, namely affective commitment, continuance commitment, and normative commitment, and a total of 18 items. The reliability coefficient of the scale was measured as 0.91. The data collection tool was sent online to private school music teachers in Ankara/Cankaya region in the 2021-2022 academic year. 32 music teachers, who answered positively and filled the scale, formed the study group. Music teachers work in 19 different private schools. In the study, teachers' commitment levels were determined. In addition, it was examined whether the levels of commitment differ according to professional seniority, income, and the department they graduated from. It was determined that the data were normally distributed with the Shapiro-Wilk test. For this reason, the independent sample t-test was used for the graduated department variable and the one-way Anova test for professional seniority and income variables. As a result of the research, it was determined that the organizational commitment levels of private school music teachers were at a good level. While organizational commitment levels do not differ according to the department graduated, they differ according to income and professional seniority. It has been determined that high income and working years increase teachers' commitment to their schools.
THE METHOD OF UTİLİZİNG THE VERSES OF THE QUR'AN İN NAHİV TEACHİNG: SAMPLE OF NUMBER AND MODİFIERS
Authors: CENGİZ Emin
Published: March 2022

The Qur'an was sent down with an Arabic speech, which is the prophet’s language sent to him and his first collocutors. Almighty Allah sent the divine message He revealed to the last Prophet in the Arabic language so that it could be understood and thought about, as for the fact that He revealed in the Qur'an. The Qur'an has used the Arabic language in the soundest and most perfect way, and has defied all people and jinn to the point that nothing can be made like it. The irab’s forms change in terms of the relationship between the words in the Arabic language and their position in the sentence. The science dealing with the forms of irab which words take place according to their position in the sentence is also the science of syntax (nahw). As there are in many other grammatical subjects, nahw scholars also benefited from the Qur'an’s verses while they were exemplifying nahw rules. Because in this respect, the Qur'an has been a very important reference source giving us the most reliable and accurate information. As there are in every language, numbers also have an important place in Arabic language. Also, the Qur'an which conveys its message to its collocutors as Arabic in the Qur'an (the Holy Book), the numbers constituting an important part of this language prevail in large numbers. Even though there are some disagreements among linguists on many grammatical subjects of Arabic language, it is a remarkable subject that there is no disagreement between the linguists and the Qur'an about numbers. It is not a right approach to see the Qur'an like a grammar book and to remove the syntax rules from it. Nevertheless, it is an incisive method to make use of the verses to exemplify some grammar subjects in nahw teaching. Because teaching some complicated rules by committing memory one or more verses can provide a faster and more permanent learning. In this study, a method that can be easily applied in teaching Arabic to foreigners and aims to effectively teach the subject of numbers and modifiers which seems to be quite complex at the beginning, is emphasized. In the aforementioned method, the subject numbers and modifiers is explained through the examples of verses brought from the Qur'an. Although it is not possible to find examples for all numbers in the Qur'an, it is possible to find at least one or several examples of each number type. All numbers can be taught in a systematic way by comparing these verse examples to be selected. In this way, the subject of number and modifiers, which seems to be quite complex and difficult at first, can be taught in an easier and more permanent way.
ART AND DRAMA EDUCATION ON THE AXIS OF IMAGE
Authors: GEMALMAYAN Reyhan YÜKSEL
Published: March 2022

In fact, all kinds of information we have acquired regarding the five senses have a personal reflection in our minds: The events we experience, the books we read, the people we meet, the image we touch, taste, smell, everything we hear is the reflection of the sound in our mind-consciousness; It is the building block of artistic expression. Images that make our emotions speak freely in art education make our dream world and world of thought creative and enrich. Everything that is the subject of our dreams also becomes the subject of art. Art makes the reader-art-receiver feel those emotions-thoughts by shaping our emotions and thoughts in a visual order. Drama is a total art discipline that is based on the acting techniques of theater -role playing, improvisation, etc.- performed and structured with body language animations: It first activates our senses, sensations, imaginations and then our thoughts in order to make art with the five senses. It consists of interdisciplinary arts and arts education; group interactive works on the development of the power of imagination by interacting emotionally with people over the dramatic, enhancing the experiences of the participants. Drama consists of interactive play processes that are constructed by arranging our emotions and thoughts within limited freedoms, enabling the participants to learn and socialize while entertaining them, and provide life experiences. However, the game provides not only emotional treatment, but also imaginative thinking, creative imagination, learning through interaction, and the participants acquire new learnings by developing cognitive-affective-motor behaviors. Drama education master's and doctorate programs have been carried out in conuntry’s higher education for 21 years; this art discipline is becoming widespread in education and training with postgraduate scientific studies. Since art education and artistic creative process require thinking with images, art educators should develop an image-based approach strategy to the drama method. In this article, on the axis of image, art education and drama education are emphasized; The subject of why art education based on the discipline of drama is necessary is explained by examining the image.
THE EFFECT OF A RESİLİENCE TRAİNİNG TO PROMOTE THE MENTAL WELL-BEİNG OF FRONTLİNE WORKERS: A BRİEF REPORT OF A SEMİ-EXPERİMENTAL STUDY ON THE COMMUNİTY RESİLİENCE MODEL
Authors: ORHAN SİBEL
Published: March 2022

Problem of the Study: Frontline workers (FLW) are at risk for secondary traumatic stress, burnout, and related psychiatric sequelae. These; depression, anxiety, suicidality, post-traumatic stress disorder, sleep and substance use disorders. Frontline workers (FLW) need self-care programs to support their mental health. The research problem of the study is handled in this context. Methods: A quasi-experimental study was conducted to evaluate the effect of a simple training on mental well-being and emotional regulation, using an appropriate example of the Community Resilience Model (CRM), FLW (Front line workers). Baseline scores on mental health and stress measures are compared with follow-up scores at three time points. Outcomes, psychological well-being (World Health Organization-5 Well-Being Index); endurance (Connor-Davidson Endurance Scale-10); traumatic stress (Secondary Traumatic Stress Scale); physical symptoms (Somatic Symptom Scale-8) were evaluated within the scope of concepts. Results: 73 (70.2%) of the 104 participants enrolled and participated in the CRM training completed at least 1 post-test. Well-being scores increased at 1 year with a small-medium effect size. (Cohen d=0.32). Resilience scores increased by 1 year with a small-medium effect size (Cohen d=0.36). Although secondary traumatic stress scores showed the greatest effect in 1 week (Cohen d=0.49), reductions were found in the scores obtained. Somatic symptoms decreased at each posttest and the greatest change occurred from baseline to 1 week (Cohen d=0.39). Participants reported that awareness of their body sensations helped them when they were very bored as a way to calm themselves. Conclusions: After three hours of Community Resilience Model (CRM) training, participants report improved mental health and reduced secondary traumatic stress and somatic symptoms. This simple body awareness intervention can be cited as a good resource during the COVID-19 pandemic.