Pub Date : 2018-12-02DOI: 10.11113/MATEMATIKA.V34.N2.934
Vakkas Uluçay, Mehmet Sahin, N. Olgun
In this paper we present a new concept called time-neutrosophic soft expert set (T-NSESs). We also de¯ne its basic operations, namely complement, union, intersection, AND, OR and study some of their properties. We give examples for these concepts. Finally we present an application of this concept in a decision-making problem.
{"title":"Time - Neutrosophic Soft Expert Sets and Its Decision Making Problem","authors":"Vakkas Uluçay, Mehmet Sahin, N. Olgun","doi":"10.11113/MATEMATIKA.V34.N2.934","DOIUrl":"https://doi.org/10.11113/MATEMATIKA.V34.N2.934","url":null,"abstract":"In this paper we present a new concept called time-neutrosophic soft expert set (T-NSESs). We also de¯ne its basic operations, namely complement, union, intersection, AND, OR and study some of their properties. We give examples for these concepts. Finally we present an application of this concept in a decision-making problem.","PeriodicalId":43733,"journal":{"name":"Matematika","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2018-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43383353","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-02DOI: 10.11113/MATEMATIKA.V34.N2.1064
A. R. Z. Abidin, Shaymaa Mustafa, Z. A. Aziz, K. Ismail
Subsea cable laying process is a difficult task for an engineer due to many uncertain situations which occur during the operation. It is very often that the cable being laid out is not perfectly fit on the route being planned, which results in the formation of slack. In order to control wastages during installation, the slack needs to be minimized and the movement of a ship/vessel needs to be synchronized with the cable being laid out. The current problem was addressed using a mathematical model by considering a number of defining parameters such as the external forces, the cable properties and geometry. Due to the complexity, the model is developed for a steady-state problem assuming velocity of the vessel is constant, seabed is flat and the effect of wind and wave is insignificant. Non-dimensional system is used to scale the engineering parameters and grouped them into only two main parameters which are the hydrodynamic drag of the fluid and the bending stiffness of the cable. There are two solutions generated in this article; numerical and asymptotic solutions. The result of these solutions suggests that the percentage of slack can be reduced by the increase of the prescribed cable tension, and also the increase in either the drag coefficient of the sea water or the bending stiffness of the cable, similarly will result in lower slack percentage.
{"title":"Subsea Cable Laying Problem","authors":"A. R. Z. Abidin, Shaymaa Mustafa, Z. A. Aziz, K. Ismail","doi":"10.11113/MATEMATIKA.V34.N2.1064","DOIUrl":"https://doi.org/10.11113/MATEMATIKA.V34.N2.1064","url":null,"abstract":"Subsea cable laying process is a difficult task for an engineer due to many uncertain situations which occur during the operation. It is very often that the cable being laid out is not perfectly fit on the route being planned, which results in the formation of slack. In order to control wastages during installation, the slack needs to be minimized and the movement of a ship/vessel needs to be synchronized with the cable being laid out. The current problem was addressed using a mathematical model by considering a number of defining parameters such as the external forces, the cable properties and geometry. Due to the complexity, the model is developed for a steady-state problem assuming velocity of the vessel is constant, seabed is flat and the effect of wind and wave is insignificant. Non-dimensional system is used to scale the engineering parameters and grouped them into only two main parameters which are the hydrodynamic drag of the fluid and the bending stiffness of the cable. There are two solutions generated in this article; numerical and asymptotic solutions. The result of these solutions suggests that the percentage of slack can be reduced by the increase of the prescribed cable tension, and also the increase in either the drag coefficient of the sea water or the bending stiffness of the cable, similarly will result in lower slack percentage.","PeriodicalId":43733,"journal":{"name":"Matematika","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2018-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42588855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-02DOI: 10.11113/MATEMATIKA.V34.N2.826
M. S. Dutta, H. K. Saikia
In this article, cyclic codes of length $n$ over a formal power series ring and cyclic codes of length $nl$ over a finite field are studied. By defining a module isomorphism between $R^n$ and $(Z_4)^{2^kn}$, Dinh and Lopez-Permouth proved that a cyclic shift in $(Z_4)^{2^kn}$ corresponds to a constacyclic shift in $R^n$ by $u$, where $R=frac{Z_4[u]}{}$. We have defined a bijective mapping $Phi_l$ on $R_{infty}$, where $R_{infty}$ is the formal power series ring over a finite field $mathbb{F}$. We have proved that a cyclic shift in $(mathbb{F})^{ln}$ corresponds to a $Phi_l-$cyclic shift in $(R_{infty})^n$ by defining a mapping from $(R_{infty})^n$ onto $(mathbb{F})^{ln}$. We have also derived some related results.
{"title":"A Study of Cyclic Codes Via a Surjective Mapping","authors":"M. S. Dutta, H. K. Saikia","doi":"10.11113/MATEMATIKA.V34.N2.826","DOIUrl":"https://doi.org/10.11113/MATEMATIKA.V34.N2.826","url":null,"abstract":"In this article, cyclic codes of length $n$ over a formal power series ring and cyclic codes of length $nl$ over a finite field are studied. By defining a module isomorphism between $R^n$ and $(Z_4)^{2^kn}$, Dinh and Lopez-Permouth proved that a cyclic shift in $(Z_4)^{2^kn}$ corresponds to a constacyclic shift in $R^n$ by $u$, where $R=frac{Z_4[u]}{}$. We have defined a bijective mapping $Phi_l$ on $R_{infty}$, where $R_{infty}$ is the formal power series ring over a finite field $mathbb{F}$. We have proved that a cyclic shift in $(mathbb{F})^{ln}$ corresponds to a $Phi_l-$cyclic shift in $(R_{infty})^n$ by defining a mapping from $(R_{infty})^n$ onto $(mathbb{F})^{ln}$. We have also derived some related results.","PeriodicalId":43733,"journal":{"name":"Matematika","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2018-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45242818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-02DOI: 10.11113/MATEMATIKA.V34.N2.817
M. Matinfar, M. Dosti
In this article, we apply an impressive method for solving linear optimal control problem based on cubic B-spline quasi-interpolation. Hamilton-Jacobi equation are applied to linear optimal control problem convert to systems of first-order equations. The main idea of our scheme is approximation derivative with cubic B-spline quasi-interpolation. This method is straightforward, without restrictive assumptions.The results of scheme are made in pleasant agreement with analytic solutions. The accuracy of the proposed method is demonstrated by absolute error. Our scheme is simple to implement because its algorithm is easy and it's one of the advantages of the proposed method.
{"title":"Solving Linear Optimal Control Problems Using Cubic B-spline Quasi-interpolation","authors":"M. Matinfar, M. Dosti","doi":"10.11113/MATEMATIKA.V34.N2.817","DOIUrl":"https://doi.org/10.11113/MATEMATIKA.V34.N2.817","url":null,"abstract":"In this article, we apply an impressive method for solving linear optimal control problem based on cubic B-spline quasi-interpolation. Hamilton-Jacobi equation are applied to linear optimal control problem convert to systems of first-order equations. The main idea of our scheme is approximation derivative with cubic B-spline quasi-interpolation. This method is straightforward, without restrictive assumptions.The results of scheme are made in pleasant agreement with analytic solutions. The accuracy of the proposed method is demonstrated by absolute error. Our scheme is simple to implement because its algorithm is easy and it's one of the advantages of the proposed method.","PeriodicalId":43733,"journal":{"name":"Matematika","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2018-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46252097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-11-30DOI: 10.29313/jmtm.v17i2.4114
Arie Wahyuni, Prihadi Kurniawan
Abstrak. Perguruan tinggi sekarang ini sangat ditekankan dalam proses pembelajaran hendaknya mahasiswa memiliki kemampuan berpikir kreatif. Kemampuan berpikir kreatif memiliki kecenderungan dapat melatih mahasiswa untuk mengeluarkan ide-ide yang muncul atau mengekspresikan diri dalam proses pembelajaran. Tujuan dari penelitian ini adalah untuk mengetahui adakah pengaruh kemampuan berpikir kreatif terhadap hasil belajar mahasiswa dan seberapa besarkah pengaruh kemampuan berpikir kreatif terhadap hasil belajar mahasiswa. Metode yang digunakan dalam penelitian ini adalah kuantitatif deskriptif dengan analisis regresi linear. Analisis data dengan menghitung koefisien korelasi dan uji signifikan nya kemudian dilanjutkan dengan menentukan persamaan regresinya. Hasil penelitian menunjukkan bahwa kemampuan berpikir kreatif mempengaruhi hasil belajar mahasiswa dengan nilai tidak signifikan serta kemampuan berpikir kreatif mempengaruhi hasil belajar mahasiswa sebesar 22,5%. Kata Kunci : pengaruh, kemampuan berpikir kreatif, hasil belajar. Abstract . (The Corellation of Creative Thinking Ability and Student Learning Outcomes). Today’s universities are highly emphasized in the learning process students should have the ability to think creatively. The ability to think creatively has a tendency to train students to issue ideas that emerge or express themselves in the learning process. The purpose of this research is to find out is there any influence of the ability to think creatively on student learning outcomes and how much influence the ability to think creatively on student learning outcomes. The method used in this study is quantitative descriptive with linear regression analysis. Data analysis by calculating the correlation coefficient and significant test then followed by determining the regression equation. The results showed that creative thinking ability influenced student learning outcomes with insignificant values and creative thinking ability influenced student learning outcomes by 22.5%. Keywords: Influence, Creative Thinking Skills, Learning Outcomes.
{"title":"Hubungan Kemampuan Berpikir Kreatif Terhadap Hasil Belajar Mahasiswa","authors":"Arie Wahyuni, Prihadi Kurniawan","doi":"10.29313/jmtm.v17i2.4114","DOIUrl":"https://doi.org/10.29313/jmtm.v17i2.4114","url":null,"abstract":"Abstrak. Perguruan tinggi sekarang ini sangat ditekankan dalam proses pembelajaran hendaknya mahasiswa memiliki kemampuan berpikir kreatif. Kemampuan berpikir kreatif memiliki kecenderungan dapat melatih mahasiswa untuk mengeluarkan ide-ide yang muncul atau mengekspresikan diri dalam proses pembelajaran. Tujuan dari penelitian ini adalah untuk mengetahui adakah pengaruh kemampuan berpikir kreatif terhadap hasil belajar mahasiswa dan seberapa besarkah pengaruh kemampuan berpikir kreatif terhadap hasil belajar mahasiswa. Metode yang digunakan dalam penelitian ini adalah kuantitatif deskriptif dengan analisis regresi linear. Analisis data dengan menghitung koefisien korelasi dan uji signifikan nya kemudian dilanjutkan dengan menentukan persamaan regresinya. Hasil penelitian menunjukkan bahwa kemampuan berpikir kreatif mempengaruhi hasil belajar mahasiswa dengan nilai tidak signifikan serta kemampuan berpikir kreatif mempengaruhi hasil belajar mahasiswa sebesar 22,5%. Kata Kunci : pengaruh, kemampuan berpikir kreatif, hasil belajar. Abstract . (The Corellation of Creative Thinking Ability and Student Learning Outcomes). Today’s universities are highly emphasized in the learning process students should have the ability to think creatively. The ability to think creatively has a tendency to train students to issue ideas that emerge or express themselves in the learning process. The purpose of this research is to find out is there any influence of the ability to think creatively on student learning outcomes and how much influence the ability to think creatively on student learning outcomes. The method used in this study is quantitative descriptive with linear regression analysis. Data analysis by calculating the correlation coefficient and significant test then followed by determining the regression equation. The results showed that creative thinking ability influenced student learning outcomes with insignificant values and creative thinking ability influenced student learning outcomes by 22.5%. Keywords: Influence, Creative Thinking Skills, Learning Outcomes.","PeriodicalId":43733,"journal":{"name":"Matematika","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2018-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46399780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-11-30DOI: 10.29313/JMTM.V17I2.4431
Ema Marlina, E. Harahap
Abstrak. Makalah ini membahas kajian hasil studi pustaka dari beberapa sumber yang relevan. Tujuannya adalah untuk mengetahui pembelajaran program linier dengan berbantuan QM for Windows efektif dalam mengembangkan kemampuan berpikir kritis dan resiliensi matematik. Uraian yang dikaji didasarkan atas analisis terhadap: 1) definisi dari kemampuan berpikir kritis dan resiliensi matematik berdasarkan para pakar; 2) ciri-ciri kemampuan berpikir kritis dan resiliensi matematik; 3) langkah-langkah menyelesaikan masalah program linier dengan bantuan QM for Windows. Kata kunci : berpikir kritis dan resiliensi matematik, program linier, QM for Windows Abstract. This paper study literature from the resources references relevant. The purpose is for finding of linear programming teaching assisted with QM for Windows effectively by developing critical thinking and reciliency mathematical abilities. The analysis investigation based on: 1) The definition of critical thinking and reciliency mathematical abilities according to the scientists; 2) The characteristics of critical thinking and reciliency mathematical abilities; 3) The stages of problem solving by linear programming assisted with QM for Windows. Keywords : critical thinking and reciliency mathematical abilities, linear programming, QM for Windows.
摘要因此，这是关于从一些相关来源对图书馆的研究。目标是学习线性程序学习，在开发批判性思维和数学弹性方面为Windows提供有效的QM范围。基于分析的方法：1）专家对批判性思维和数学弹性的定义；2） 批判性思维和数学弹性的特点；3） 使用QM for Windows解决线性程序问题的步骤。关键词：批判性思维和数学弹性，线性程序，QM for Windows摘要。本文从文献研究的相关参考资料入手。目的是通过培养批判性思维和弹性数学能力，找到QM for Windows有效辅助线性规划教学的方法。分析调查基于：1）科学家对批判性思维和弹性数学能力的定义2） 批判性思维和弹性数学能力的特点；3） 在QM for Windows的辅助下，通过线性规划解决问题的各个阶段。关键词：批判性思维和弹性数学能力，线性编程，QM for Windows。
{"title":"Mengembangkan Kemampuan Berpikir Kritis dan Resiliensi Matematik Melalui Pembelajaran Program Linier Berbantuan QM for Windows","authors":"Ema Marlina, E. Harahap","doi":"10.29313/JMTM.V17I2.4431","DOIUrl":"https://doi.org/10.29313/JMTM.V17I2.4431","url":null,"abstract":"Abstrak. Makalah ini membahas kajian hasil studi pustaka dari beberapa sumber yang relevan. Tujuannya adalah untuk mengetahui pembelajaran program linier dengan berbantuan QM for Windows efektif dalam mengembangkan kemampuan berpikir kritis dan resiliensi matematik. Uraian yang dikaji didasarkan atas analisis terhadap: 1) definisi dari kemampuan berpikir kritis dan resiliensi matematik berdasarkan para pakar; 2) ciri-ciri kemampuan berpikir kritis dan resiliensi matematik; 3) langkah-langkah menyelesaikan masalah program linier dengan bantuan QM for Windows. Kata kunci : berpikir kritis dan resiliensi matematik, program linier, QM for Windows Abstract. This paper study literature from the resources references relevant. The purpose is for finding of linear programming teaching assisted with QM for Windows effectively by developing critical thinking and reciliency mathematical abilities. The analysis investigation based on: 1) The definition of critical thinking and reciliency mathematical abilities according to the scientists; 2) The characteristics of critical thinking and reciliency mathematical abilities; 3) The stages of problem solving by linear programming assisted with QM for Windows. Keywords : critical thinking and reciliency mathematical abilities, linear programming, QM for Windows.","PeriodicalId":43733,"journal":{"name":"Matematika","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2018-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47126282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-11-30DOI: 10.29313/jmtm.v17i2.4451
Y. Permanasari, E. Harahap
Abstrak. Makalah ini membahas kajian hasil studi pustaka dari beberapa sumber yang relevan. Tujuannya adalah untuk mengetahui pembelajaran program linier dengan berbantuan QM for Window efektif dalam mengembangkan kemampuan berpikir kritis dan resiliansi matematik. Uraian yang dikaji didasarkan atas analisis terhadap: 1) definisi dari kemampuan berpikir kritis dan resiliensi matematika berdasarkan para pakar; 2) ciri-ciri kemampuan berpikir kritis dan resiliensi matematik; 3) langkah-langkah dalam menyelesaikan masalah program linier dengan bantuan QM for Windows.Kata kunci: berpikir kritis dan resiliensi matematik, program linier, QM for WindowsCryptography Polyalphabetic One-Time PadAbstract. This paper study literature from the resources references relevant. The purpose is for finding of linier proggraming teaching assisted with QM for Window effectively by developing critical thinking and reciliency mathematical abilities. The analysis investigation based on : 1) The definition of critical thinking and reciliency mathematical abilities according to the scientists; 2) The characteristics of critical thinking and reciliency mathematical abilities; 3) The stages of problem solving by linier programming assisted with QM for Windows.Keywords: critical thinking, critical thinking abilities, linier programming, QM for Windows
摘要因此，这是关于从一些相关来源对图书馆的研究。目标是在发展批判性思维和数学弹性方面，通过有效的窗口范围QM学习线性程序学习。Uraia基于以下分析进行测试：1）基于专家的批判性思维和数学弹性的定义；2） 批判性思维和数学弹性的特点；3） 使用QM for Windows解决线性程序问题的步骤。关键词：批判性思维和数学弹性，线性程序，QM for WindowsCryptography Polyalphabetic一次性PadAbstract。本文从文献资源的角度研究文学UNK]的目的是通过培养批判性思维和弹性数学能力，找到QM有效辅助Window的线性编程教学。分析调查[UNK]基于：1）科学家对批判性思维和弹性数学能力的定义；以及2） 批判性思维和弹性数学能力的特点；3） 在QM for Windows的帮助下，通过linier编程解决问题的阶段。关键词：批判性思维，批判性思维能力，linier编程，QM for Windows
{"title":"Kriptografi Polyalphabetic One-Time Pad","authors":"Y. Permanasari, E. Harahap","doi":"10.29313/jmtm.v17i2.4451","DOIUrl":"https://doi.org/10.29313/jmtm.v17i2.4451","url":null,"abstract":"Abstrak. Makalah ini membahas kajian hasil studi pustaka dari beberapa sumber yang relevan. Tujuannya adalah untuk mengetahui pembelajaran program linier dengan berbantuan QM for Window efektif dalam mengembangkan kemampuan berpikir kritis dan resiliansi matematik. Uraian yang dikaji didasarkan atas analisis terhadap: 1) definisi dari kemampuan berpikir kritis dan resiliensi matematika berdasarkan para pakar; 2) ciri-ciri kemampuan berpikir kritis dan resiliensi matematik; 3) langkah-langkah dalam menyelesaikan masalah program linier dengan bantuan QM for Windows.Kata kunci: berpikir kritis dan resiliensi matematik, program linier, QM for WindowsCryptography Polyalphabetic One-Time PadAbstract. This paper study literature from the resources references relevant. The purpose is for finding of linier proggraming teaching assisted with QM for Window effectively by developing critical thinking and reciliency mathematical abilities. The analysis investigation based on : 1) The definition of critical thinking and reciliency mathematical abilities according to the scientists; 2) The characteristics of critical thinking and reciliency mathematical abilities; 3) The stages of problem solving by linier programming assisted with QM for Windows.Keywords: critical thinking, critical thinking abilities, linier programming, QM for Windows","PeriodicalId":43733,"journal":{"name":"Matematika","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2018-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45513460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-11-30DOI: 10.29313/JMTM.V17I2.4552
E. Harahap, Yurika Permanasari, F. Badruzzaman, Ema Marlina, Didi Suhaedi, M. Y. Fajar
Abstrak. Antrian panjang kendaraan seringkali ditemukan pada lokasi persimpangan lampu lalu lintas. Hal ini dapat disebabkan oleh beberapa faktor, diantaranya penyebab yang paling utama adalah banyaknya kedatangan kendaraan dan durasi lampu lalu lintas dalam satu siklus. Pada artikel ini diuraikan penelitian mengenai lalu lintas di persimpangan Buah-Batu - Soekarno Hatta. Persimpangan ini merupakan salah satu persimpangan yang paling padat di kota Bandung. Metode pengambilan data dilakukan dengan cara observasi langsung ke jalan raya. Selanjutnya dilakukan analisis terhadap data yang diperoleh dengan menggunakan teori antrian. Pada penelitian ini gunakan model antrian M/M/1 dimana kedatangan kendaraan diasumsikan melalui proses Poisson dengan waktu layanan pada lampu lalu lintas diasumsikan berdistribusi eksponensial.Kata kunci: lalu lintas, persimpangan, pemodelan, lampu merah, model antrian.Abstract. Long queues of vehicles are often found at the location of traffic lights. This can be caused by several factors, including the most important cause is the number of vehicle arrivals and the duration of traffic lights in one cycle. In this article a study of traffic at the intersection of Buah-Batu - Soekarno Hatta is described. This intersection is one of the most congested intersections in the city of Bandung. The method of data retrieval is done by direct observation to the highway. Furthermore, an analysis of the data obtained using queuing theory is carried out. In this study use the M/M/1 queue model where the arrival of vehicles is assumed through a Poisson process with the service time at the traffic lights assumed to be exponentially distributed.Keywords: traffic, intersection, modeling, queueing model.
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Abstrak. Penelitian ini bertujuan untuk mendapatkan model terbaik dan meramalkan jumlah produksi kopi berdasarkan model terbaik yang telah diperoleh menggunakan metode Seasonal ARIMA yaitu dengan cara memodelkan data. Setelah diperoleh beberapa model pada masing-masing data, kemudian model terbaik dipilih berdasarkan pada kriteria nilai AIC dan SBC dengan nilai paling minimum. Hasil penelitian diperoleh untuk nilai AIC dan SBC yang paling minimum untuk data produksi kopi adalah model ARIMA (1,2,0)(1,2,1)12 dan untuk data curah hujan adalah model ARIMA (0,1,1)(1,1,0)12. Model tersebut adalah model yang akan digunakan untuk memprediksi jumlah kopi pada beberapa tahun mendatang di Kabupaten Lampung Barat. Kata Kunci: seasonal ARIMA, peramalan, aplikasi R, kopi, lampung Abstract. This research is used to get the best model and predict the amount of coffee production based on the best model that have been obtained by using seasonal ARIMA method. There are several steps of ARIMA seasonal method, the first is modeling data After obtaining several models on each data then the best model is chosen based on AIC and SBC value criteria with minimum value, minimum AIC and SBC value for coffee production data is ARIMA model (1,2,0)(1,2,1)12 and for rainfall data is ARIMA model (0,1,1)(1,1,0)12. The model is a model that will be used to predict the number of copies in the next few years in West Lampung District. Keywords : seasonal ARIMA, forecasting, R application, coffee, lampung
{"title":"Metode Seasonal ARIMA untuk Meramalkan Produksi Kopi Dengan Indikator Curah Hujan Menggunakan Aplikasi R di Kabupaten Lampung Barat","authors":"Hani Nastiti Tantika, Nanang Supriadi, Dian Anggraini","doi":"10.29313/JMTM.V17I2.3831","DOIUrl":"https://doi.org/10.29313/JMTM.V17I2.3831","url":null,"abstract":"Abstrak. Penelitian ini bertujuan untuk mendapatkan model terbaik dan meramalkan jumlah produksi kopi berdasarkan model terbaik yang telah diperoleh menggunakan metode Seasonal ARIMA yaitu dengan cara memodelkan data. Setelah diperoleh beberapa model pada masing-masing data, kemudian model terbaik dipilih berdasarkan pada kriteria nilai AIC dan SBC dengan nilai paling minimum. Hasil penelitian diperoleh untuk nilai AIC dan SBC yang paling minimum untuk data produksi kopi adalah model ARIMA (1,2,0)(1,2,1)12 dan untuk data curah hujan adalah model ARIMA (0,1,1)(1,1,0)12. Model tersebut adalah model yang akan digunakan untuk memprediksi jumlah kopi pada beberapa tahun mendatang di Kabupaten Lampung Barat. Kata Kunci: seasonal ARIMA, peramalan, aplikasi R, kopi, lampung Abstract. This research is used to get the best model and predict the amount of coffee production based on the best model that have been obtained by using seasonal ARIMA method. There are several steps of ARIMA seasonal method, the first is modeling data After obtaining several models on each data then the best model is chosen based on AIC and SBC value criteria with minimum value, minimum AIC and SBC value for coffee production data is ARIMA model (1,2,0)(1,2,1)12 and for rainfall data is ARIMA model (0,1,1)(1,1,0)12. The model is a model that will be used to predict the number of copies in the next few years in West Lampung District. Keywords : seasonal ARIMA, forecasting, R application, coffee, lampung","PeriodicalId":43733,"journal":{"name":"Matematika","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2018-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43045052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-11-30DOI: 10.29313/jmtm.v17i2.4140
R. Respitawulan
Abstrak. Dalam artikel ini, dilihat aplikasi origami dalam mencari solusi dari persamaan kubik. Pencarian solusi dari persamaan kubik dilakukan melalui konstruksi origami. Terdapat dua macam konstruksi origami yang telah dikenal luas: konstruksi dari Huzita-Justin dan Alperin-Lang. Dari perbandingan kedua konstruksi tersebut untuk menyelesaikan persamaan kubik, terlihat bahwa Huzita-Justin memberikan langkah yang lebih sederhana dalam pencarian solusi persamaan kubik, tetapi Alperin-Lang lebih powerful karena dapat dipergunakan untuk menyelesaikan persamaan polinom dengan derajat lebih tinggi. Kata kunci : solusi persamaan kubik, konstruksi origami, metoda Lill Huzita-Justin vs. Alperin-Lang: Solution of Cubic Equation using Origami Construction Abstract. In this article, we see the application of origami to find the solution of cubic equation. There are two well-known origami constructions: Huzita-Justin’s and Alperin-Lang’s construction. Comparing both constructions to solve cubic equation, Huzita-Justin’s gives simpler steps. Although, Alperin-Lang’s is more powerful since it can be used to solve equations with higher degree. Keywords : cubic equation solution, origami construction, Lill’s method
{"title":"Huzita-Justin vs. Alperin-Lang: Solusi Persamaan Kubik Dengan Konstruksi Origami","authors":"R. Respitawulan","doi":"10.29313/jmtm.v17i2.4140","DOIUrl":"https://doi.org/10.29313/jmtm.v17i2.4140","url":null,"abstract":"Abstrak. Dalam artikel ini, dilihat aplikasi origami dalam mencari solusi dari persamaan kubik. Pencarian solusi dari persamaan kubik dilakukan melalui konstruksi origami. Terdapat dua macam konstruksi origami yang telah dikenal luas: konstruksi dari Huzita-Justin dan Alperin-Lang. Dari perbandingan kedua konstruksi tersebut untuk menyelesaikan persamaan kubik, terlihat bahwa Huzita-Justin memberikan langkah yang lebih sederhana dalam pencarian solusi persamaan kubik, tetapi Alperin-Lang lebih powerful karena dapat dipergunakan untuk menyelesaikan persamaan polinom dengan derajat lebih tinggi. Kata kunci : solusi persamaan kubik, konstruksi origami, metoda Lill Huzita-Justin vs. Alperin-Lang: Solution of Cubic Equation using Origami Construction Abstract. In this article, we see the application of origami to find the solution of cubic equation. There are two well-known origami constructions: Huzita-Justin’s and Alperin-Lang’s construction. Comparing both constructions to solve cubic equation, Huzita-Justin’s gives simpler steps. Although, Alperin-Lang’s is more powerful since it can be used to solve equations with higher degree. Keywords : cubic equation solution, origami construction, Lill’s method","PeriodicalId":43733,"journal":{"name":"Matematika","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2018-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45680087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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