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Model Peramalan Indeks Harga Konsumen Kota Palangka Raya Menggunakan Seasonal ARIMA (SARIMA)
IF 0.4 Q4 MATHEMATICS Pub Date : 2018-11-29 DOI: 10.29313/jmtm.v17i2.3981
Ananto Wibowo
Forecasting Model for Consumer Price Index of Palangka Raya City using Seasonal ARIMA (SARIMA) Abstrak. Palangka Raya merupakan salah kota indikator perhitungan Indeks Harga Konsumen (IHK) di Provinsi Kalimantan Tengah. Secara tidak langsung, persentase perubahan IHK, senantiasa dijaga oleh pemerintah agar tetap rendah dan stabil untuk prasyarat pertumbuhan ekonomi berkesinambungan serta mampu memberikan manfaat bagi peningkatan kesejahteraan masyarakat. Oleh karena itu, peramalan data IHK perlu dilakukan untuk membantu pemerintah dalam menyusun suatu kebijakan. Salah satu metode statistik yang paling tepat untuk melakukan peramalan data IHK Kota Palangka Raya dengan menggunakan Seasonal Autoregressive Integrated Moving Average (SARIMA). Metode SARIMA sangat cocok untuk diterapkan pada data IHK karena terdapat pola musiman yang terjadi pada waktu tertentu. Data yang digunakan merupakan data sekunder bersumber dari Badan Pusat Statistik (BPS) Provinsi Kalimantan Tengah dengan series sebanyak 48 observasi. Berdasarkan hasil trial and error , model SARIMA pada saat , dan  dianggap sebagai model terbaik untuk peramalan data IHK dengan koefisien determinasi adjusted sebesar 84,67%. Selain itu, model peramalan memenuhi seluruh uji asumsi diagnostik dan sangat powerful mendekati data aktual. Kata kunci: SARIMA, Peramalan, IHK Abstract. Palangka Raya is one of the indicator city for Consumer Price Index (CPI) calculation in Central Kalimantan Province. The percentage of changes in CPI had always been indirectly maintained by government in order to remain low and stable as a preconditions for sustainable economic growth and to provide benefits for improving people's walfare. Therefore, the forecasting of CPI is required to assist the development of government's policy. One of the precise statistical method for forecasting Palangka Raya's CPI is Seasonal Autoregressive Integrated Moving Average (SARIMA). SARIMA is very suitable to be applied in Consumer Price Index's data because of seasonal patterns that occured in several times. The data used in this research are secondary data sourced from Statistics Indonesia of Central Kalimantan Office with 48 observations. Based on trial and error process, SARIMA when ,  is considered the best statistical model to forecast CPI data with an adjusted coefficent of determination 84.67%. This forecasting model also fulfilled all diagnostic assumptions' tests and powerfully approached the actual data. Keywords: SARIMA, Forcasting, CPI
概念模型。大pa稀有公司是加里曼丹中部省消费者价格指数(IHK)计算指标的一个城市。在某种程度上,IHK变化的百分比一直由政府保持在低稳定的经济增长先决条件下,能够促进社会福利。因此,国际贸易委员会需要提供数据,以帮助政府制定政策。最有效的统计方法之一是使用seonal Autoregressive - Moving Average (SARIMA)来分析帕罗亚市IHK dataSARIMA的方法非常适合IHK数据,因为在特定的时间发生了季节性模式。所使用的数据是次要数据,来自加里曼丹省中部的统计机构(BPS),该机构发表了一系列48次观察。基于试验和错误的结果,当时的sarma模型,被认为是IHK数据预测的最佳模型,其授权执行系数为84.67%。此外,面相模型满足了整个诊断假设测试,并接近实际数据。关键词:SARIMA,算命,IHK Abstract。婆罗洲省中部的消费价格指数(CPI)正在计算。CPI中变化的单一状态一直是由政府直接控制的,以保证可持续经济增长和提供福利,以促进繁荣人民的流动。在此之前,CPI的前奏被要求评估政府的政策发展。拉亚遗产CPI的预测预测方法之一是渐进的、可移动的平均方法。由于某些时代发生的一系列事件,SARIMA在《消费者价格指数》的数据中被应用是非常可靠的。这项研究中使用的数据来自印度尼西亚中央加里曼丹办公室48次观测的数据。基于审判和错误的进程,当时的SARIMA,被认为是建立CPI数据最好的统计模型,具有84.67%的确定条款。这款预选模型还能完善所有测试和动力验证实际数据。释义:SARIMA, for铸造,CPI
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引用次数: 5
Analisis Perbandingan Fungsi Kernel dalam Perhitungan Economic Capital untuk Risiko Operasional Menggunakan Bahasa Pemrograman Python 用Python语言分析经济资本中操作风险核心函数的比较
IF 0.4 Q4 MATHEMATICS Pub Date : 2018-11-29 DOI: 10.29313/JMTM.V17I2.4112
Erwan Setiawan, Ramdhan F Suwarman
Abstrak . Pada penelitian yang dilakukan oleh Setiawan dkk, menyatakan bahwa metode loss distribution approach dengan pendekatan kernel density estimation mampu menghasilkan nilai economic capital yang lebih efisien sebesar 1,6% - 3,2% dibandingkan dengan pendekatan distribusi probabilitas tertentu. Fungsi kernel yang digunakan dalam penelitian tersebut adalah kernel Gaussian dengan pertimbangan dapat memberikan visual grafik yang lebih mulus dibandingkan visual grafik yang dihasilkan oleh fungsi kernel lainnya, seperti Uniform, Epanechnikov, dan Segitiga. Padahal tidak ada jaminan bahwa grafik yang lebih mulus dapat memberikan hasil economic capital yang lebih efisien. Oleh karena itu, akan dilakukan penelitian lebih lanjut yang bertujuan 1) menghitung nilai economic capital menggunakan loss distribution approach dengan pendekatan kernel density estimation yang menggunakan fungsi kernel Gaussian, Uniform, Epanechnikov, dan Segitiga, 2) membandingkan nilai-nilai economic capital yang dihasilkan dengan cara uji perbedaan rata-rata. Perhitungan nilai economic capital dilakukan melalui simulasi komputasi berbasis bahasa pemrograman python. Hasil penelitian menunjukkan bahwa terdapat perbedaan yang signifikan pada nilai economic capital yang dihasilkan. Oleh karena itu, pemilihan fungsi kernel yang tepat sangat diperlukan agar dapat memberikan nilai economic capital yang lebih efisien. Kata kunci: economic capital, kernel density estimation, dan fungsi kernel Abstract . In the research conducted by Setiawan, et al stated that loss distribution approach method with kernel density estimation approach can produce more efficient economic capital values of 1.6% - 3.2% compared to certain probability distribution approaches. The kernel function used in the research is the Gaussian kernel with the consideration that it can provide graphics that are smoother than visual graphics produced by other kernel functions, such as Uniform, Epanechnikov, and Triangle. Whereas there is no guarantee that a smoother graph can provide more efficient economic capital results. Therefore, further research will be carried out with the aim of 1) calculating the value of economic capital using a loss distribution approach with a kernel density estimation approach that uses Gaussian, Uniform, Epanechnikov, and Triangle kernel functions, 2) comparing the values of economic capital produced with average difference test method. Calculation of the value of economic capital is done through computational simulations based on the python programming language. The results showed that there were significant differences in the value of economic capital generated. Therefore, choosing the right kernel function is very necessary in order to provide more efficient economic capital values. Keyword: economic capital, kernel density estimation, dan kernel function
摘要DKK进行的一项研究表明,与给定概率分布的方法相比,损失分布方法和核密度估计方法能够更有效地产生1.6%-3.2%的经济资本值。该研究中使用的核函数是高斯核,考虑到高斯核可以提供比其他核函数(如Uniform、Epanechnikov和三角形)产生的图形视觉更详细的图形视觉。尽管无法保证更详细的图形能够提供更高效的经济资本。因此,将进行进一步的研究,目的是:1)使用损失分布方法计算经济资本值,使用高斯、均匀、埃帕涅什尼科夫和三角形核函数的核密度估计方法,2)比较通过测试平均差产生的经济资本值。经济资本的计算是基于Python编程语言通过模拟计算来完成的。研究表明,生产资本的经济价值存在显著差异。因此,选择正确的核功能对于提供更有效的经济资本至关重要。关键词:经济资本,核密度估计,核函数摘要。在Setiawan等人的研究中指出,与某些概率分布方法相比,损失分布方法和核密度估计方法可以产生1.6%-3.2%的更有效的经济资本值。研究中使用的核函数是高斯核,考虑到它可以提供比其他核函数(如Uniform、Epanechnikov和Triangle)生成的视觉图形更平滑的图形。然而,无法保证一个更平滑的图可以提供更有效的经济资本结果。因此,将进行进一步的研究,目的是:1)使用损失分布方法和使用高斯、均匀、埃帕涅什尼科夫和三角核函数的核密度估计方法计算经济资本的价值,2)比较平均差分检验方法产生的经济资本的值。经济资本价值的计算是通过基于python编程语言的计算模拟来完成的。结果表明,经济资本产生的价值存在显著差异。因此,为了提供更有效的经济资本价值,选择正确的核心函数是非常必要的。关键词:经济资本、核密度估计、核函数
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引用次数: 0
Optimalisasi Produksi Kopi Bubuk Asli Lampung Dengan Metode Simpleks 用简单的方法优化原装灯咖啡的生产
IF 0.4 Q4 MATHEMATICS Pub Date : 2018-11-29 DOI: 10.29313/JMTM.V17I2.3852
Ruchimat Haslan, Nanang Supriadi, Sri Purwanti Nasution
The Optimization of Lampung Original Powder Coffee Production With The Simplex Method Abstrak . Tujuan penelitian ini adalah untuk mengoptimalkan produksi kopi bubuk dengan metode simpleks dan berbantu software Lindo dalam produksi kopi bubuk di Industri Rumahan Kopi Bubuk Asli Lampung. Metode simpleks adalah suatu metode yang digunakan untuk memecahkan masalah linear programming yang meliputi banyak pertidaksamaan dan banyak variabel dengan perhitungan berulang-ulang (iterasi) sampai mencapai solusi optimal. Penelitian ini adalah studi pustaka yang merupakan telaah dari literatur dengan mengkaji buku-buku, literatur-literatur, catatan-catatan, dan laporan-laporan yang berhubungan dengan masalah yang dipecahkan. Hasil dari penelitian ini menunjukkan bahwa setelah dilakukan perhitungan dengan metode simpleks dan berbantu software Lindo, jumlah produksi optimal yaitu 46 kemasan 1 dan 163 kemasan 2, sehingga diperoleh keuntungan produksi optimal sebesar Rp. 2.541.500 dengan ketersediaan bahan baku yang ada. Kata Kunci: Linear Programming, Metode Simpleks, Optimalisasi, Lindo 6.1 Abstract . The purpose of this research is to optimize the production of coffee powder with simplex method and Lindo software assisted in the production of coffee powder in Lampung Pure Coffee Industry Original Lampung. The simplex method is a method used to solve linear programming problems that include many inequalities and many variables with repeated calculations (iterations) until it reaches the optimal solution. This study is a literature study which is a study of the literature by reviewing books, literature, records, and reports relating to the problem solved. The result of this research shows that after calculation with simplex method and assisted software Lindo, optimum production amount that is 46 pack 1 and 163 pack 2, so that obtained optimal production profit equal to IDR 2.541.500 with the availability of existing raw materials. Keywords: Linear Programming, Simplex Method, Optimization, Lindo 6.1
用单纯形法Abstrak优化Lampung原粉咖啡的生产。本研究的目的是在Asli Bulk coffee Industry Lamp的粉末咖啡生产中,通过简单的方法和Lindo软件来优化粉末咖啡的生产。单纯形法是一种用于解决线性规划问题的方法,该问题涉及许多相似性和许多变量,重复计算(迭代)直到达到最优解。本研究是一项图书馆研究,通过研究与已解决问题相关的书籍、文学文献、笔记和报告,成为文学的杰作。本研究的结果表明,用Lindo的单纯形法和基于软件的方法计算后,最佳产量为46包1和163包2,从而在默认材料可用的情况下获得了2541500卢比的最佳生产效益。关键词:线性规划,简单方法,优化,林多6.1摘要。本研究的目的是利用单纯形法和Lindo软件对Lampung Pure coffee Industry Original Lampung的咖啡粉生产进行优化。单纯形法是一种用于通过重复计算(迭代)来解决包括许多不等式和许多变量的线性规划问题的方法,直到它达到最优解。本研究是一项文献研究,是通过回顾与所解决问题有关的书籍、文献、记录和报告来研究文献。研究结果表明,采用单纯形法和辅助软件Lindo进行计算后,在现有原材料可用的情况下,最佳生产量为46包1和163包2,从而获得了相当于2.541.500印尼盾的最佳生产利润。关键词:线性规划,单纯形法,优化,Lindo 6.1
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引用次数: 6
Analisis Kemampuan Koneksi Matematis Siswa Menggunakan Pendekatan Pembelajaran CTL dan RME 分析学生使用CTL和RME学习方法的数学连接能力
IF 0.4 Q4 MATHEMATICS Pub Date : 2018-08-29 DOI: 10.29313/JMTM.V17I1.3691
Eneng Diana Putri Latipah, Ekasatya Aldila Afriansyah
Abstrak. Penelitian ini dilatarbelakangi dari pentingnya kemampuan koneksi matematis terutama di tingkat sekolah menengah pertama. Tujuan penelitian ini adalah untuk mengetahui kemampuan koneksi matematis siswa yang mendapat pendekatan pembelajaran CTL dan pendekatan pembelajaran RME. Serta respon siswa terhadap kedua pendekatan tersebut. Metode penelitian yang digunakan adalah metode kuasi eksperimen dengan desain The Static group pretest - posttest design . Populasi penelitian ini yaitu siswa SMP 2 Cilawu. Sedangkan sampel penelitiannya adalah siswa kelas VII yaitu kelas VII-D sebagai kelas eksperimen 1 sebanyak 31 siswa, dan kelas VII-A sebagai kelas eksperimen 2 sebanyak 30 siswa. Dari hasil penelitian menunjukkan bahwa kemampuan koneksi matematis siswa yang mendapat pendekatan CTL dengan siswa yang mendapat pendekatan pembelajaran RME sama baiknya. Kualitas peningkatan kedua pendekatan tersebut berinterpretasi sedang, dan sebagian besar siswa memiliki interpretasi sikap baik terhadap pembelajaran Matematika dengan menggunakan pendekatan CTL dan sebagian besar siswa memiliki interpretasi sikap cukup baik terhadap pembelajaran Matematika dengan menggunakan pendekatan RME. Kata kunci : Pendekatan CTL, Pendekatan RME, Kemampuan Koneksi Matematis, The Static Group Pretest - Posttest Design Abstract. ( The analysis of students' mathematical connection skills using CTL and RME approaches ) This research has background with the important of the mathematics connection ability especially in junior high school. The aim of this research is to know the mathematics connection ability that has got approach CTL and RME. As well as response the students with two learn approaches. The method of this research used Quasi-experimental method with the static group pretest-posttest design. Population of this research is the students of SMPN 2 CILAWU. Whereas the sample of the research is the students class of VII-D as experiment class 1 as many as 31 students and Students class of VII-A as experiment class 2 as many as 30 students. As the result from this research, showed that the students mathematics connection ability who got CTL same good result with the students who got RME. The two approach enhancement has Intermediate interpretation quality, and a lot of the students have a god attitude interpretation with mathematic learning with CTL approach and a lot of the students have well enough attitude interpretation with mathematic learning. Keywords : CTL Approach, RME Approach, Mathematics Connection Ability, The Static Group Pretest-Posttest Design
抽象。这项研究是基于数学连接能力的重要性,尤其是在初中阶段。本研究的目的是确定拥有CTL学习方法和RME学习方法的数学连接的能力。以及学生对这两种方法的反应。采用的研究方法是一种用于拟化的实验方法,用于在静态组前设计后的设计。本研究的人口是smp2cilawu的学生。而研究样本是七年级的VII- d班作为实验班1至31名学生,via班作为实验班2至30名学生。研究表明,获得CTL方法的学生与获得RME学习方法的学生之间的数学连接能力是一样的。这两种方法的改进质量都是适度的,大多数学生对数学学习的态度都有很好的解释,大多数学生对数学学习的态度解释也有很好的解释,通过RME方法。关键词:CTL方法,RME方法,数学连接能力,前期设计预测。(学生分析的mathematical connection skills使用CTL和RME approaches)这项研究的背景是数学连接的重要性,尤其是初中的能力。这个研究的目的是了解数学与获得CTL和RME认同的能力。作为回应,学生有两种学习过度。这个研究的方法是一种用于实验的静态组预试验设计的方法。这项研究的人口是西劳鲁SMPN 2的学生。研究的样本是1级实验31级的vid和students 2级实验的学生。作为这项研究的结果,学生们证明了谁有CTL和学生有同样好的反馈。两种倾向都有内部的解释,许多学生用CTL的进步和许多学生用数学的进步来解释上帝的态度,用数学的学习来解释。CTL同意,RME同意,Mathematics连接能力,静态小组预置设计
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引用次数: 21
Pengendalian Jumlah Persediaan Bahan Baku Kerudung Pada RAR Azkia Padalarang 控制亚洲RAR禁用的抗凝剂供应量
IF 0.4 Q4 MATHEMATICS Pub Date : 2018-05-30 DOI: 10.29313/JMTM.V17I1.4559
F. Badruzzaman, E. Harahap
Abstrak. Penelitian dilakukan di RAR Azkia Padalarang Bandung Barat dengan tujuan untuk mengetahui kuantitas optimal bahan baku dalam setiap kali pembelian/pemesanan (EOQ). Data dikumpulkan dengan metode wawancara, dianalisis dengan teknik analisis deskriptif dengan pendekatan kuantitatif. Jumlah pemesanan dalam satu tahun (2015) adalah sebanyak 115.000 Kg dengan rata-rata per bulan adalah 9583,33 kg dibulatkan 9583 kg. Hasil penelitian menunjukkan bahwa jumlah optimal pemesanan atau pembelian bahan baku untuk satu kali pesan adalah 8522,579 kg dibulatkan 8523 kg. Frekuensi pembeliannya adalah 14 kali, daur pemesanannya adalah 26-27 hari, dan terdapat selisih jumlah pemesanan 1060 kg per tahun.Kata kunci: economic order quantity, rar azkia, pembelian, pemesananAbstract. The study was conducted at RAR Azkia Padalarang, West Bandung with the aim to determine the optimal quantity of raw materials in each purchase/order (EOQ). Data were collected by interview method, analyzed by descriptive analysis techniques with quantitative approaches. The number of orders in one year (2015) is 115,000 kg with an average per month of 9583.33 kg rounded 9583 kg. The results showed that the optimal number of orders or purchases of raw materials for one order was 8522,579 kg rounded 8523 kg. The frequency of purchases is 14 times, the order cycle is 26-27 days, and there is a difference in the number of orders of 1060 kg per year.Keywords: economic order quantity, rar azkia, purchase, order
抽象。这项研究是在万隆巴拉禁止西万隆进行的,目的是确定每次购买/预订的原料的最佳数量。数据采用访谈方法收集,采用定量方法分析描述性分析技术。订货单每年(2015年)共11万5000公斤,平均每月为9583.33公斤(9583公斤)。研究结果表明,一条消息的最佳订量或购买原料为8522,579公斤,共8523公斤。购置频率为14次,预定周期为26-27天,订单数量为每年1060公斤。关键词:经济秩序quantity, rar azkia,采购,排序。这项研究是在西万隆禁止的一项法律上进行的,目的是确定每一种目的的原始材料的最佳质量。数据是由访谈方法、解析与量化分析技术分析分析所收集的。2015年的订单编号是115,000公斤,平均每月9583公斤。结果表明,最初的订单或购买原始材料的最佳数量是8522,579公斤,共8523公斤。购买的频率是14次,订单周期是26-27天,在每年1060公斤的数量上有不同。经济秩序制度,rar azkia, purchase,秩序
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引用次数: 1
Membangun Kemampuan Komunikasi Matematis Siswa Melalui Lesson Study: Sebuah Perspektif 从课堂学习的角度培养学生数学交际能力
IF 0.4 Q4 MATHEMATICS Pub Date : 2018-05-30 DOI: 10.29313/jmtm.v17i1.4564
Didi Suhaedi, E. Harahap
Abstrak. Komunikasi matematis, sebagai bagian dari daya matematis, merupakan suatu kemampuan yang mesti dipelajari dan dikuasai oleh siswa dalam mempelajari materi-materi Matematika. Tumbuh kembangnya komunikasi matematis siswa sangat dipengaruhi oleh partisipasi aktif siswa secara kolaboratif dalam proses pembelajaran Matematika. Lesson study sebagai pembelajaran yang berorientasi pada siswa (student center) memberikan ruang yang cukup bagi siswa untuk mengembangkan kemampuan komunikasi matematisnya. Diskusi kelompok dan kelas dapat menjadi wahana bagi siswa untuk melakukan peer colaboration dalam mengembangkan kemampuan komunikasi matematis siswa dan menguasai materi Matematika. Artikel ini mendiskusikan tentang konstruksi kemampuan komunikasi matematis siswa melalui lesson study.Kata kunci: komunikasi matematis, lesson study Building Student’s Mathematical Communication Ability Through Lesson Study: A PerspectiveAbstract. Mathematical communication, as part of mathematical power, is an ability that must be learned and mastered by students in learning Mathematics materials. The growth of mathematical communication of students is strongly influenced by the active participation of students collaboratively in the process of learning Mathematics. Lesson study as student-oriented learning (student center) provides sufficient space for students to develop mathematical communication ability. Group and class discussions can be a vehicle for students to do peer collaboration in developing students' mathematical communication ability and mastering Mathematical material. This article discusses the construction of students' mathematical communication ability through lesson study.Keywords: mathematical communication, lesson study
摘要数学交际作为数学能力的一部分,是学生在数学学习中必须学习和掌握的一种能力。学生在数学学习过程中的积极参与在很大程度上影响了学生数学交流的发展。课堂学习作为一种以学生为中心的学习方式,为学生发展数学交流能力提供了充足的空间。小组和课堂讨论可以成为学生与同龄人合作的工具,培养学生数学交流和掌握数学的能力。本文通过课堂教学探讨了数学交际能力的构建。关键词:数学交流,课堂学习通过课堂学习培养学生的数学交流能力:透视摘要。数学交际作为数学能力的一部分,是学生在学习数学材料时必须学习和掌握的一种能力。学生在数学学习过程中的积极参与对学生数学交流的发展有很大影响。课堂学习作为以学生为中心的学习,为学生培养数学交际能力提供了充足的空间。小组和课堂讨论可以成为学生进行同伴合作的工具,培养学生的数学交流能力和掌握数学材料。本文通过课堂教学探讨了学生数学交际能力的培养。关键词:数学交流、课堂学习
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引用次数: 3
On Estimates for the Generalized Fourier-Dunkl Transform in the Space L2 关于L2空间中广义傅立叶-邓克尔变换的估计
IF 0.4 Q4 MATHEMATICS Pub Date : 2018-05-28 DOI: 10.11113/MATEMATIKA.V34.N1.788
R. Daher, S. Ouadih
Two useful estimates are proved for the generalized Fourier-Dunkltransform in the space L2 on certain classes of functions characterized by thegeneralized continuity modulus.
证明了空间L2中的广义傅立叶-邓氏变换在某些以广义连续模为特征的函数类上的两个有用的估计。
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引用次数: 0
Subbalancing Numbers 子平衡数
IF 0.4 Q4 MATHEMATICS Pub Date : 2018-05-28 DOI: 10.11113/matematika.v34.n1.829
R. K. Davala, G. Panda
A natural number $n$ is called balancing number (with balancer $r$)if it satisfies the Diophantine equation $1+2+cdots+(n-1)=(n+1)+(n+2)+cdots+(n+r).$ However, if for some pair of natural numbers $(n,r)$, $1+2+cdots+(n-1) < (n+1)+(n+2)+cdots+(n+r)$ and equality is achieved after adding a natural number $D$ to the left hand side then we call $n$ a $D$-subbalancing number with $D$-subbalaner number $r$. In this paper, such numbers are studied for certain values of $D$.
如果自然数$n$满足丢番图方程$1+2+cdots+(n-1)=(n+1)+(n+2)+cdots+(n+r),则称其为平衡数(带平衡器$r$)$然而,如果对于某对自然数$(n,r)$,$1+2+cdots+(n-1)<(n+1)+(n+2)+cdots+(n+r)$,并且在将自然数$D$添加到左手边后实现相等,则我们将$n$称为$D$子平衡数,其中$D$为子平衡数$r$。在本文中,对于$D$的某些值,研究了这样的数字。
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引用次数: 2
MHD Flow and Heat Transfer in a Moving Conducting Inclined Channel 移动传导倾斜通道中的MHD流动和传热
IF 0.4 Q4 MATHEMATICS Pub Date : 2018-05-28 DOI: 10.11113/MATEMATIKA.V34.N1.841
M. Ayano
The problem of unsteady laminar, incompressible, electrically conducting micropolar fluid between inclined channel of rectangular cross-section was studied. It is assumed the flow is under the influence of transverse magnetic field and   the walls of the channel have constant temperatures and finite conductivity. The numerical solutions was obtained for the velocity, magnetic field profile, microrotation and temperature fields for various parametric conditions. These results are illustrated graphically to illustrate the effects of the physical parameters governing the flow. It is found that velocity, magnetic field profile and microrotations promote the motion of the fluid with increase the with wall conductance. It is also found that both velocity and magnetic field decreases with magnetic parameter increases.
研究了矩形截面倾斜通道间的非定常层状不可压缩导电微极流体问题。假设流动受到横向磁场的影响,通道壁面温度恒定,电导率有限。得到了不同参数条件下的速度场、磁场剖面、微旋场和温度场的数值解。这些结果用图形说明了控制流动的物理参数的影响。研究发现,速度、磁场分布和微旋度对流体的运动有促进作用,而壁面电导的增大对流体的运动有促进作用。速度和磁场随磁参量的增大而减小。
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引用次数: 0
Generalisations of DNA Splicing Systems with One Palindromic Restriction Enzyme 具有一个回文限制酶的DNA剪接系统的推广
IF 0.4 Q4 MATHEMATICS Pub Date : 2018-05-28 DOI: 10.11113/MATEMATIKA.V34.N1.1011
Fong Wan Heng, Nurul Izzaty Ismail
In DNA splicing system, the potential effect of sets of restriction enzymes and a ligase that allow DNA molecules to be cleaved and re-associated to produce further molecules is modelled mathematically.  This modelling is done in the framework of formal language theory, in which the nitrogen bases, nucleotides and restriction sites are modelled as alphabets, strings and rules respectively.  The molecules resulting from a splicing system is depicted as the splicing language.  In this research, the splicing language resulting from DNA splicing systems with one palindromic restriction enzyme for one and two (non-overlapping) cutting sites are generalised as regular expressions.
在DNA剪接系统中,一组限制性内切酶和一种连接酶的潜在作用,使DNA分子被切割并重新结合以产生更多的分子,这是数学模型。这种建模是在形式语言理论的框架下进行的,其中氮碱基、核苷酸和限制性位点分别建模为字母、字符串和规则。剪接系统产生的分子被描述为剪接语言。在这项研究中,由一个回文限制酶用于一个和两个(非重叠)切割位点的DNA剪接系统产生的剪接语言被概括为正则表达式。
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引用次数: 4
期刊
Matematika
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