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International Journal of Economic, Technology and Social Sciences (Injects)

injects
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Published by Centre For Research and Development Indonesia

ISSN : - EISSN : 27752976 DOI : 10.53695/injects

Core Subject : Religion, Economy, Humanities, Health, Science, Education, Agriculture, Social, Engineering,

Religion Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Economics, Econometrics & Finance Education Industrial & Manufacturing Engineering Public Health Social Sciences

International Journal of Economic, Technology and Social Sciences (Injects), published by the Centre for Research and Development Indonesia (CERED Indonesia), North Sumatra, Indonesia, which includes articles on the scientific research field of Economics, Technology and Social sciences, consists of the results of scientific research original, International Journal of Economic, Technology and Social Sciences (Injects) accepts manuscripts in the field of research comprises scientific areas relevant to: Economics and the Relevant Sectors of Economic Science Technology Social Sciences Fields

Arjuna Subject : Umum - Umum

Articles 247 Documents

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An Analysis of Compensation and Communication on Employee Performance at Parkson Center Point Medan Faisal Amri; Rindi Andika; Ramadhan Harahap
International Journal of Economic, Technology and Social Sciences (Injects) Vol. 3 No. 1 (2022): May 2022
Publisher : CERED Indonesia Institute

This research is a quantitative model, and while the respondents in this study are all employees who are in the company Parkson Center Point Medan which amounts to 33 people. The data in this study is primary by using questionnaires and distribution of questionnaires to employees. From the results of research data processing, obtained number 2,426> table 1.69, the conclusion is that the Compensation variable (X1) has a significant positive effect on employee performance. And the results of research data processing, obtained number 3,895> table 1.69 then the conclusion is that the communication variable (X2) has a significant positive effect on employee performance

The Effect of Return On Assets, Return On Equity, Net Profit Margin and Current Ratio on Stock Prices in Oil and Gas Sub-Sector Mining Companies on the Indonesia Stock Exchange for the 2015-2019 Period Elda Nadia Pasaribu; Junawan; Rahima Br Purba
International Journal of Economic, Technology and Social Sciences (Injects) Vol. 3 No. 1 (2022): May 2022
Publisher : CERED Indonesia Institute

This study aims to examine the effect of Return On Assets, Return On Equity, Net Profit Margin and Current Ratio on stock prices in oil and gas sub-sector mining companies listed on the Indonesia Stock Exchange for the 2015-2019 period. This type of research is quantitative research. The sample used in this study was obtained by saturated sampling method with a total sample of 8 companies. The test method used is multiple linear regression analysis, classical assumption test (normality test, multicollinearity test, autocorrelation test, heteroscedasticity test), model feasibility test (F test and analysis of the coefficient of determination (R2)) and hypothesis testing using t test with tools. SPSS (Statistical Product and Service Solutions). The results of this study indicate that testing the hypothesis (t test) the effect of Return On Assets, Return On and Current Ratio partially positive and significant effect on stock prices, while Net Profit Margin has no positive and significant effect on stock prices. F test shows the effect of Return On Assets, Return On Equit, Net Profit Margin and Current Ratio simultaneously have a positive and significant effect on stock prices.

Juridical Review of Social Media Defamation Okta Lestari Br. Ginting; Abdul Razak Nasution; Saiful Azmi Hasibuan
International Journal of Economic, Technology and Social Sciences (Injects) Vol. 3 No. 1 (2022): May 2022
Publisher : CERED Indonesia Institute

In the Civil Code, the existence of the issue of provisions on Defamation is grouped in the Third Book of Perikatan Chapter II Perikatan which was born for the benefit of the Law. In general, insults in the Civil Code are classified as a genus of Unlawful Acts as regulated in Article 1365 of the Civil Code, where the provisions of contempt are specifically regulated in Articles 1372 to 1380 of the Civil Code. Where in this study is a defamation problem to find out the juridical review of damages on social media based on civil law. The claim for damages aims to regain the honor of defamation. The fundamental difference between the prohibition of defamation in criminal law and civil law lies in the purpose and purpose of the sanction. In criminal law, it lies in the institution of criminal sanctions that are believed to have inhibition power, while in civil law it means the fulfillment of compensation due to defamation.

Design of Acoustic Transmission Loss Measurements in the Form of Power Amplifier Based on Impedance Tube Method Wahyu Setyawan; Solly Aryza; Adi Sastra P. Tarigan
International Journal of Economic, Technology and Social Sciences (Injects) Vol. 3 No. 1 (2022): May 2022
Publisher : CERED Indonesia Institute

The conventional amplifier involves a power supply (ground) line connected to the audio path. This In the processing of the audio signal will appear IHM (Interval Hum Modulation) noise. Therefore, to be able to suppress the occurrence of noise to a minimum, then made an amplifier that does not refer to a ground power supply. The amplifier must really balance from input to output. To realize the balance amplifier is specified class AB push-pull specification with arms power of 120 Watt and bandwidth width between 50 to 10kHz. In the power amplifier used complementary pairs circuit system as a current amplifier. Based on the test results turned out output power to the speaker only 100 Watt with 20 volt supply voltage and has a bandwidth width between 30 Hz to 15 Hz with a gain of 163 times.

An Increasing Insulation Resistance of Poly Vinyl Formaldehid (PVF) Wire in Avoiding Voltage Breaking Electrical Installations Sanpun Nobel Manalu; Adi Sastra P. Tarigan; Solly Aryza
International Journal of Economic, Technology and Social Sciences (Injects) Vol. 3 No. 1 (2022): May 2022
Publisher : CERED Indonesia Institute

The development of industry in Indonesia has experienced a fairly rapid capacity in recent years, in line with that, many problems have arisen. To overcome these problems, it is necessary to test the results of an industrial product in order to determine the properties of the materials produced so that the results of a product can be used in accordance with good standards and quality. Testing is also useful in preventing harm to humans and the surrounding environment caused by breakdown of cable insulation. So that repeated tests are very good in the selection of conductors to be used. Every industrial product material before being used as part of an equipment, for example for transformer coils, must be tested based on predetermined standards. This is so that the dielectric properties of these materials can be known from the test results, so a conclusion will be drawn whether the material is suitable for use or not.

An Analysis of Current Decrease in Generators at the Hydrogen Plant PLTU Pangkalan Susu Rizky Purba; Adi Sastra P. Tarigan; Hamdani
International Journal of Economic, Technology and Social Sciences (Injects) Vol. 3 No. 1 (2022): May 2022
Publisher : CERED Indonesia Institute

The hydrogen generator is one of the devices used to cool the main generator. The hydrogen produced by the hydrogen generator is sent to the main generator to reduce the very high temperature. The hydrogen generator system is the hydrogen obtained from the electrolyte. After the electrolysis process, it flows into the generator to cool the main generator. The PLTU Pangkalan Susu hydrogen power plant was interrupted by a sudden power drop. As a result, the system tripped, cutting off the supply of hydrogen injected to the generator. According to the analysis, the reason for the current drop is that the electrolyte concentration value is low. in order to replace it in such a way that the current in the generator returns to normal.

Study an Improvement of Electrostatic Prescipitator (ESP) Interference Protection Systems PLTU Pangkalan Susu Units 1 and 2 Rikky Ferdinand Sinurat; Solly Aryza; Adi Sastra P. Tarigan
International Journal of Economic, Technology and Social Sciences (Injects) Vol. 3 No. 1 (2022): May 2022
Publisher : CERED Indonesia Institute

The problem of air pollution in this technological era has reached an alarming level. This is in line with the increasing number of pollutants produced from daily activities. Some industrial factories, power plants, and motorized vehicles that every day always produce harmful pollutants that pollute clean air. Coal-fired power plants could be a source of air pollution if coal combustion was not handled properly. Where the ash from coal combustion in the boiler produces fly ash and bottom ash. Based on these conditions, a tool is needed to reduce or control fly ash. This study describes the reliability of the equipment in the generating unit so that the reliability of the ESP system can be guaranteed and maintained. With the results of cases that occurred in ESP during the review, 90% of the problems in ESP were found in ESP. This problem is closely related to other equipment which can later cause the ESP field to stop. It is necessary to pay attention to the readiness of the inside for the long term because the repair process takes a long time and when the unit is off (offline). To minimize problems on the inside, we can monitor the ESP performance chart itself by paying attention to the points in the cases described above. It is recommended that the inner parts such as stopper plates, etc., which are related to the mounting parts are expected to be welded to avoid loss. we can monitor the ESP performance chart itself by paying attention to the points in the cases described above. It is recommended that the inner parts such as stopper plates, etc., which are related to the mounting parts are expected to be welded to avoid loss. we can monitor the ESP performance chart itself by paying attention to the points in the cases described above. It is recommended that the inner parts such as stopper plates, etc., which are related to the mounting parts are expected to be welded to avoid loss.

Application Of Fuzzy Logic In Color Detection Robot Arm Simulator Rifq Surya Pradhana; Zulfahmi Syahputra; Arpan
International Journal of Economic, Technology and Social Sciences (Injects) Vol. 3 No. 1 (2022): May 2022
Publisher : CERED Indonesia Institute

Robot is one of the important tools in the industry under certain conditions. The world of education itself has done a lot of research in the field of robotics. The robot arm is one of them, the existence of a robot arm is expected to provide a function or performance in accordance with the work of the human arm and has stronger strength. The robot arm that is built applies a fuzzy logic method that determines the color of the object and will be moved according to the predetermined color, the color consists of three colors, namely red, green and blue. Robots are designed to be flexible and easy to use. It has controllers that have to be reprogrammed at any time to suit their function, like the Arduino Uno, and actuators like servomotors that are low-voltage and easy. This is why the TowerPro SG90 Servo motor was chosen to build the robot arm manipulator.

Improved Microcontroller-Based 3 Phase Induction Motor Protection From A Variety Of Interruptions Efri Wildan Hafiz; Adi Sastra P. Tarigan; Solly Aryza
International Journal of Economic, Technology and Social Sciences (Injects) Vol. 3 No. 1 (2022): May 2022
Publisher : CERED Indonesia Institute

Different types of human labour in the contemporary era of globalization rely on electronic tools like 3-phase induction motors. The usage of a 3-phase induction motor in this investigation is essential for synchronized gait and function. Due to differences in the R, S, and T phase angles, which result in an uneven load overload in the electricity distribution system, voltage changes between the three phases of the electrical energy system arise. Overvoltage, Undervoltage, Unbalanced Inter-Phase Voltage (unbalance voltage), Overload (overload), and Overheat are a few of the issues that might arise. In response to this conflict, a three-phase induction motor protection system was developed.

Analysis Of The Effect Of Excitation Current On The Synchronology Generator On Loading At Plta Renun PT PLN (Persero) UPDK Pandan David Simanullang; Siti Anisah; Hamdani
International Journal of Economic, Technology and Social Sciences (Injects) Vol. 3 No. 1 (2022): May 2022
Publisher : CERED Indonesia Institute

This study will discuss the effect of the excitation current of the PLTA RENUN synchronous generator on each load change to maintain the nominal output voltage of the generator with a variable transmission voltage of 150 kV. The analysis data is obtained from the Daily Operation Report of the RENUN HEPP in accordance with changes in the generator load or changes in the value of the transmission voltage to determine its effect on changes in the AVR excitation current. The daily data obtained is then compared with the initial setting or AVR characteristics during the Commissioning Test, the resulting deviation will be used as input for the Pandan UPDK Engineering in carrying out the next corrective action. Thus the reliability of the PLTA RENUN in serving P2B to maintain the stability of the 150 kV Sumbagut transmission system is maintained.

Page 12 of 25 | Total Record : 247

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Contact Name
Soulthan Saladin Batubara

Contact Email
injects.ceredindonesia@gmail.com

Phone
+628126445134

Journal Mail Official
injects@ceredindonesia.or.id

Editorial Address
Jalan Pendidikan, Ps. XI Tembung, Bandar Klippa Kec. Percut Sei Tuan, Kab. Deli Serdang, Sumatera Utara 20371

Location
Unknown,

Unknown

INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Soulthan Saladin Batubara

Contact Email injects.ceredindonesia@gmail.com

Phone +628126445134

Journal Mail Official injects@ceredindonesia.or.id

Editorial Address Jalan Pendidikan, Ps. XI Tembung, Bandar Klippa Kec. Percut Sei Tuan, Kab. Deli Serdang, Sumatera Utara 20371

Location Unknown, Unknown INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Soulthan Saladin Batubara

Contact Email
injects.ceredindonesia@gmail.com

Phone
+628126445134

Journal Mail Official
injects@ceredindonesia.or.id

Editorial Address
Jalan Pendidikan, Ps. XI Tembung, Bandar Klippa Kec. Percut Sei Tuan, Kab. Deli Serdang, Sumatera Utara 20371

Location
Unknown,

Unknown

INDONESIA