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Zero : Jurnal Sains, Matematika, dan Terapan
Published by Universitas Islam Negeri Sumatera Utara
ISSN : 2580569X     EISSN : 25805754     DOI : 10.30829
Core Subject : Science, Education, Agriculture,
Agriculture, Biological Sciences & Forestry Chemistry Mathematics Physics
Arjuna Subject : -
Articles 184 Documents
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THE IMPACT OF FUNDAMENTAL ELEMENTS ON STOCK PRICES OF SUBSIDIARY PULP & PAPER MANUFACTURING FIRMS LISTED ON THE INDONESIA STOCK EXCHANGE Fatimah, Zahara; Lubis, Arina Luthfini
ZERO: Jurnal Sains, Matematika dan Terapan Vol 6, No 2 (2022): Zero: Jurnal Sains Matematika dan Terapan
Publisher : UIN Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/zero.v6i2.14623

Abstract

Predicting stock prices is contained in the basic approach is fundamental and technical analysis which is needed by entrepreneurs who invest their capital, this analysis is to determine the company's financial performance and must continue to be carried out, to carry out this analysis we use the help of several financial ratios where several types of ratios Return on Assets, Debt to Equity Ratio, Return on Equity, and Book Value per Share are some examples. The authors applied a quantitative descriptive approach to companies listed on the Indonesia Stock Exchange in the Pulp & Paper sector for this study. According to the Correlation and Regression tables, all of the variables ROA, ROE, DER, and BVS have an effect on stock prices, but the stock session obtained on the variables ROA, ROE, and DER has a very significant effect on stock prices but has no significant effect on stock prices on the BVS variable. So in the long term the company must implement one of two policies, namely low solvency means using less debt than own capital and a low solvency policy will not cause high interest expenses to be borne by the company so that it will affect growth.
IMPLEMENTATION OF NORTH WEST CORNER METHOD AND MODIFIED DISTRIBUTION METHOD IN OPTIMIZING FISH DISTRIBUTION COSTS USING MATLAB PROGRAM Sitanggang, Eby Agusriani; Ahyaningsih, Faiz
ZERO: Jurnal Sains, Matematika dan Terapan Vol 6, No 2 (2022): Zero: Jurnal Sains Matematika dan Terapan
Publisher : UIN Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/zero.v6i2.14556

Abstract

Calculating distribution costs using the transportation method seeks to solve the problem of goods sent from source to destination so that the most optimal amount of transportation costs will be obtained to maximize profits. CV. Horizon Sibolga Group is a company that provides raw fish for sale to fish processing consumers. The company is located at Gatot Subroto street Number. 108 Pondok Batu Sarudik, Central Tapanuli Regency, North Sumatra Province. In this study, the North West Corner method will be used to find an initial feasible solution, and the Modified Distribution method will be used as an optimization test. If the test results show an optimal solution, then the allocation has been optimal and can be said to have reached the most profitable value. These results were obtained using Matlab software. Before the calculation, the company incurs distribution costs for a year of Rp. 963,000,000. From the research results, the total cost obtained after using the North West Corner method as an initial feasible solution is Rp. 928,831,000, and after using the Modified Distribution method as an optimization test, the total distribution cost is Rp. 923,058,000. So that the method used can save costs of Rp. 39,942,000, with a percentage of 4.14%.Keywords: Optimization, Transportation Problems, North West Corner, Modified Distribution, Matlab.
COMPARISON OF ARIMA AND WINTERS METHODS ON SALES FORCASTING OF FURNITURE COMPANIES AT UD PODOMORO ASAHAN Frischa, Ledya; Sari, Rina Filia; Husein, Ismail
ZERO: Jurnal Sains, Matematika dan Terapan Vol 6, No 2 (2022): Zero: Jurnal Sains Matematika dan Terapan
Publisher : UIN Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/zero.v6i2.13833

Abstract

Economic growth in Indonesia affects the need for household furniture. With the increasing demand, consumers have to wait a long time for the requested furniture. This causes sales to not be optimal due to consumer disappointment which results in cancellation of requests. The purpose of this research is to determine the optimal development of sales and make a production schedule based on the forecasting results obtained. The data of this research are window sales at UD. Podomoro Asahan from July 2016 to July 2021. The data was processed using the ARIMA and Winters methods and then compared between the two methods.The results of the study used the ARIMA method, namely using the ARIMA model (0,1,1) with an error value of MPE -0.079772% and MAPE 16.592778%. The results of the study used the Winters method, namely using the smoothing constant α=0.546225; β=0.259846; γ=0.116178; with MPE error value -0.39785% and MAPE 39.78471%.
DESIGN EMPLOYEE ATTENDANCE INFORMATION SYSTEM USING BARCODE CODE 39 Suharjo, Suharjo; Sakban, Muhammad
ZERO: Jurnal Sains, Matematika dan Terapan Vol 6, No 2 (2022): Zero: Jurnal Sains Matematika dan Terapan
Publisher : UIN Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/zero.v6i2.14124

Abstract

The development of information and Communication Technology at this time has touched all sides of life. There is almost no side of human life that is not touched by information technology, not least also with computerization that is popular in the corporate environment. When in ancient times everything was still done manually. However, at this time all the leaders and management of the company have realized the importance of this information technology product that can facilitate them in carrying out Daily company functions. Many a design that uses computerized attendance but not integrated with attendance recording. Attendance recording is still manual so that it takes a long time in the process of making attendance because they have to do the counter manually. In this study will be designed a computerized attendance information system where the attendance process using database processing applications ysng assisted by using the barcode method code 39. The final result of the design of attendance information system is expected to help companies to manage attendance data effectively and efficiently.
LITERATUR STUDY OF STUDENTS MATHEMATICAL PROBLEM SOLVING ABILITIES ON HIGHER ORDER THINKING SKILL QUESTIONS FROM VARIOUS LEARNING MODELS Elia Siska; Muhammad Amin Fauzi
ZERO: Jurnal Sains, Matematika dan Terapan Vol 6, No 2 (2022): Zero: Jurnal Sains Matematika dan Terapan
Publisher : UIN Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/zero.v6i2.14676

Abstract

This study aims to determine the results of a literature study on students' mathematical problem solving abilities on higher order thinking skill (HOTS) questions from various learning models. Students' problem solving abilities in identifying elements that are known or needed in solving mathematical problems, formulating mathematical problems, selecting problem solving, and re-examining problem solving to then make solutions in other ways or develop student problem solving when students are faced with math problem. High Order Thinking Skills (HOTS) is a thinking process of students at a higher cognitive level that is developed from various cognitive concepts and methods and learning taxonomies such as problem solving methods, bloom taxonomies, and learning, teaching, and assessment taxonomies. Based on the results of the analysis of the results of the study, it was concluded that students' mathematical problem solving abilities could be improved by applying problem based learning and discovery learning models. And the learning model that is better used is the Problem Based Learning.
DECISION SUPPORT SYSTEM FOR DETERMINING LEVELS OF CRUDE PALM OIL USING FUZZY MADM (MULTIPLE ATTRIBUTE DECISION MAKING) USING THE SAW (SIMPLE ADDTIVE WEIGHTING) METHOD Furqan, Mhd; Nasution, Yusuf Ramadhan; Irsyad, Fauzan
ZERO: Jurnal Sains, Matematika dan Terapan Vol 6, No 2 (2022): Zero: Jurnal Sains Matematika dan Terapan
Publisher : UIN Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/zero.v6i2.14555

Abstract

PT.UKINDO BLANKHAN – POM is one of many large oil palm plantations that produces crude palm oil. The quality requirements for palm oil used as a raw material in the food industry and the non-food industry are distinct. Consequently, authenticity, purity, freshness, and other aspects need to be given more thought. The crude palm oil content is still selected manually in the processing section. It is challenging to process this, and it does not completely rule out the possibility of assessment errors. Based on the assessment above, determining high-quality oil frequently presents challenges, particularly when it comes to valuing crude oil levels or aspects in accordance with quality and standards. In light of these issues, a system that can assist in determining the level and quality of raw oil is required. Consequently, developing a method for determining the content of crude palm oil using Fuzzy MultiAttributeDecision Making and Simple Additive Weighting methods. The Fuzzy MultiAttribute Decision Making methodiisiused toifind alternativesifrom a number of alternativesiwith predeterminedicriteria. Whileithe Simple Additive Weighting methodiis usedito rank theiexisting alternatives. Theiresults ofithis studylcan belused asla tooliin makingldecisions tolget a good oil content. 
DESIGN OF A CLAP DETECTION LIGHT CONTROL SYSTEM BASED ON ARDUINO UNO Luaha, Kesadaran; Ismail, Syahlan; Rahman, Arif; Siagian, Nurhawa Nizar; Amalia, Laily Rizky; Wijaya, Rian Farta
ZERO: Jurnal Sains, Matematika dan Terapan Vol 6, No 2 (2022): Zero: Jurnal Sains Matematika dan Terapan
Publisher : UIN Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/zero.v6i2.14717

Abstract

Lamp technology can also provide lighting, currently it has helped many people's activities in their daily life activities. Here the author aims to make a prototype in the form of a tool with a system that can turn on and turn off the lights, by turning off different lights and efficiency so that it no longer requires physical contact to turn them on and off. so that the lights can turn on and off by utilizing a sound from the movement of the human body that can be received directly without having to touch the switch of the lamp. In making it the author uses the Arduino Uno microcontroller as the brain of this system, with input in the form of the FC-04 sound sensor module, namely the sound sensor works based on incoming sound waves. If the sound waves hit the sensor membrane, it will have an effect on the sensor membrane vibrating. The membrane will convert sound waves into electrical quantities which can later be used as parameters to control output devices. This system is designed in such a way that it can work according to the desired features
EYE ASPECT RATIO ADJUSTMENT DETECTION FOR STRONG BLINKING SLEEPINESS BASED ON FACIAL LANDMARKS WITH EYE-BLINK DATASET Syahputra, Eswin; Nursukmi, Irpan; Putra, Sony; Sani, Bayu Sukma; Wijaya, Rian Farta
ZERO: Jurnal Sains, Matematika dan Terapan Vol 6, No 2 (2022): Zero: Jurnal Sains Matematika dan Terapan
Publisher : UIN Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/zero.v6i2.14751

Abstract

Blink detection is an important technique in a variety of settings, including facial motion analysis and signal processing.  However, automatic blink detection is challenging due to its blink rate. This paper proposes a real-time method for detecting eye blinks in a video series. The method is based on automatic facial landmark detection trained on real-world datasets and demonstrates robustness against various environmental factors, including lighting conditions, facial emotions, and head position. The proposed algorithm calculates the position of facial landmarks, extracts scalar values using the Eye Aspect Ratio (EAR), and characterises eye proximity in each frame. For each video frame, the proposed method calculates the location of the facial landmark and extracts the vertical distance between the eyelids using the position of the facial landmark. Blinks are detected by using the EAR threshold value and recognising the pattern of EAR values in a short temporal window. According to the results from a common data set, it is shown that the proposed approach is more efficient than state-of-the-art techniques.
IMPLEMENTATION OF THE GENERALIZED SPACE TIME AUTOREGRESSIVE (GSTAR) MODEL IN THE CASE OF THE SPREAD OF CORONAVIRUS IN THE DISTRICT CITY OF NORTH SUMATRA Nasution, Alfina Febriani; Lubis, Riri Syafitri; Widyasari, Rina
ZERO: Jurnal Sains, Matematika dan Terapan Vol 6, No 2 (2022): Zero: Jurnal Sains Matematika dan Terapan
Publisher : UIN Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/zero.v6i2.14785

Abstract

Corona Virus Disease 2019 (COVID-19) is a new virus that can be transmitted and the worst impact is death. Covid-19 first appeared in Wuhan, China and eventually spread throughout the world, one of which was North Sumatra Province. The spread of Covid-19 cases was quite rapid, until finally the World Health Organization (WHO) declared the Covid-19 case a pandemic. Based on the conditions that occurred, this final project discusses the prediction of positive cases of Covid-19 in five locations in North Sumatra using the Generalized Space Time Autoregressive (GSTAR) model. Considering that Covid-19 spreads very easily, it does not only depend on time but also the proximity between locations, so the GSTAR model is quite good to use in predicting it, assuming the parameters between locations are heterogeneous. The estimation used is OLS with inverse distance weight. This study aims to determine the best GSTAR model and forecast positive cases of Covid-19 at five locations in North Sumatra. The results show that the best GSTAR model in this study is -OLS with an inverse weight of distance with forecasting results for the next 10 days in May 2022.
ANALYSIS OF FACTORS INFLUENCING THE EVENT STUNTING WITH CHI-SQUARE METHOD APPROACH AUTOMATIC INTERACTION DETECTION IN NORTH SUMATRA Arianti, Mei Yunina; Husein, Ismail; Widyasari, Rina
ZERO: Jurnal Sains, Matematika dan Terapan Vol 6, No 2 (2022): Zero: Jurnal Sains Matematika dan Terapan
Publisher : UIN Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/zero.v6i2.14783

Abstract

In statistics, one way to group (classify) a data mathematically is called classification. There are several types of classification methods, one of which is Chi-Square Automatic Interaction Detection, which is abbreviated as CHAID. CHAID method will be applied to North Sumatra stunting data. Stunting is a condition in which a person's height is shorter than that of other people of the same age. The dependent variable in the study was stunting, which was measured in infants aged 24-59 months, while the independent variable was a factor that affected stunting. The factors that influence the incidence of stunting in infants aged 24-59 months in North Sumatra based on the results of the analysis (CHAID) are family income, sanitation and water sources. From the results of the CHAID analysis, 5 different groups were obtained, namely: Infants aged 24-59 months who were stunted were infants with an economic income of IDR 1,000,000 - IDR 2,000,000 (98.4%) and inadequate sanitation (100%), Babies aged 24-59 months who are stunted are babies with an economic income of IDR 1,000,000 - IDR 2,000,000 (98.4%) and proper sanitation (93.2%), babies aged 24-59 months who are not stunted are infants with an economic income of Rp. 3,000,000 - Rp. 5,000,000 (95.5%). Infants aged 24-59 months who are not stunted are infants with an economic income of > Rp. 5,000,000 (99.5%) and adequate water sources (100%) and infants aged 24-59 months who are not stunted with an economic income of > IDR 5,000,000 (99.5%) and inadequate water sources (97.1%).

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