Claim Missing Document
Check
Articles

Found 77 Documents
Search
Journal : KADIKMA

PEMODELAN WIND TURBINE ROTOR TIPE HAWT (HORIZONTAL AXIS WIND TURBINE) MENGGUNAKAN METODE VOLUME HINGGA Zahroh, Millatuz; Dafik, D; Fatahillah, Arif
Kadikma Vol 6 No 2 (2015): Agustus 2015
Publisher : Department of Mathematics Education , University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/kdma.v6i2.1983

Abstract

Abstract. A Wind turbine is a wind energy converters tool into electrical energy. To optimize the electrical energy converted, it needs for further research on wind turbine process. In this research, the analysis part of wind turbine is rotor, which is the contacted part to the wind. Type of wind turbine that will be analyzed in this study is HAWT (Horizontal Axis Wind Turbine) type because this model is the most often used type and can produce great electrical energy. This research construct a model of the air flow field form of wind turbine rotor and solve these problems by using the finite volume method. Model simulation process will be done by using MATLAB and FLUENT software. The analysis was performed with the variation initial velocity level of wind. It is 3 m/s, 5 m/s, and 7 m/s. The simulation results showed that the velocity of rotation wind turbine rotor blade higher when the initial wind velocity increases. Beside that, the result is when the initial wind velocity of 7 m/s and 5 m/s, the velocity of rotation wind turbine rotor blade tend to be more stable. With 5 m/s of wind velocity to wind turbine rotor, The difference between an average direct calculation and a SOR iterative calculation is obtained the value of relative error less than 0.1%. it is 0.079%. So the finite volume method of numerical methods is effective to solve this problem. Key Words : Electrical Energy, Finite Volume Method, Velocity, Wind Turbine,.
PENGEMBANGAN MEDIA PEMBELAJARAN INTERAKTIF ONLINE POKOK BAHASAN BARISAN ARITMETIKA BERBANTUAN MICROSOFT VISUAL BASIC Faruq, Fathulloh; Dafik, D; Suharto, S; Fatahillah, Arif; Murtikusuma, Randi Pratama
Kadikma Vol 9 No 2 (2018): Agustus 2018
Publisher : Department of Mathematics Education , University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/kdma.v9i2.9751

Abstract

Abstract. The purpose of this research was to produce a product to attract students’ interest in learning mathematics tested the validity, practicality, and effectiveness of using development interactive learning media of arithmetic squence. The role of technology in the field of education is not only limited to how to operate a computer, but is expected to be a solution to learning problems experienced by students and teachers. This research was processed through the stages of 4D that is define, design, development, and disseminate. This research was conducted in MAN 1 Jember which involved 32 students’ of class XII MIPA 2. The result of the research show that the development media is valid according to the material expert with the percentage of the archieved value 93,75% from validator I, 95,31% from validator II, and validator III gives 92,19% value. Effective media with learning test reasult followed 32 students’ in this research show 87,5% completed. Quationnaire showed a percentage of a 85,27% from student for practicality. Keywords: Development, Media, Technology
PEWARNAAN TOTAL R-DINAMIS DENGAN TEKNIK FUNGSI PEWARNAAN BERPOLA PADA HASIL OPERASI COMB SISI DARI GRAF CYCLE SERTA KAITANNYA DALAM KETERAMPILAN BERPIKIR TINGKAT TINGGI Wardani, Putu Liana; Dafik, Dafik; Setiawani, Susi
Kadikma Vol 6 No 3 (2015): Desember 2015
Publisher : Department of Mathematics Education , University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/kdma.v6i3.5208

Abstract

Abstract. If G = (E,V) is a simple graph, connective and undirected graph that has a set of vertex (V), set the edge (E), d(v) is the degree of a v Є V(G) and d(u) is the degree of an edge u Є E(G). The number of maximum and minimum degree of the graph G is denoted respectively by Δ(G) dan δ(G). Proper k-coloring graph G is c : V(G) ᴜ E(G) to a colored set which have to fulfill the conditions of : [1.] for each v Є V(G), |c(N(v))| ≥ min[r,d(v)+ |N(v)|] dan [2.] for each e = uv Є E(G), |c(N(e))| ≥ min[r,d(v)+d(u)]. R-dynamic color number of a graph G is denoted a minimum color of k in graph. This article discuss about total r-dynamic coloring of graph . The result shows that the total r-dynamic coloring of the graph for r =1, 2, 3, ..., n. Keywords : Total Coloring R-dynamic, Edge Comb Product, High Order Thinking Skill
SUPER (a,d)-EDGE ANTIMAGIC TOTAL LABELING OF CONNECTED LAMPION GRAPH Adawiyah, Robiatul; Dafik, D; Slamin, S
Kadikma Vol 6 No 1 (2015): April 2015
Publisher : Department of Mathematics Education , University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/kdma.v6i1.1826

Abstract

Abstract. A G graph of order p and size q is called an (a,d)-edge antimagic total if there exist a bijection f: V(G)E(G) {1,2,…,p+q} such that the edge-weights, w(uv)=f(u)+f(v)+f(uv), uv E(G), form an arithmetic sequence with first term a and common difference d. Such a graph G is called super if the smallest possible labels appear on the vertices. In this paper we study super (a,d)-edge-antimagic total properties of connected £n,m by using deductive axiomatic and the pattern recognition method. The result shows that a connected Lampion graphs admit a super (a,d)-edge antimagic total  labeling for d = 0,1,2 for n It can be concluded that the result of this research has covered all the feasible d. Key Words: (a,d)-edge antimagic vertex labeling, super (a,d)-edge antimagic total labeling, Lampion Graph.  
KETERAMPILAN BERPIKIR KREATIF PADA PEWARNAAN TITIK r-DINAMIS GRAF HASIL OPERASI EDGE CORONA GRAF LINTASAN Liowardani, Adelia Putri; Dafik, D; Fatahillah, Arif
Kadikma Vol 9 No 3 (2018): Desember 2018
Publisher : Department of Mathematics Education , University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/kdma.v9i3.10748

Abstract

Abstract This Research is development from vertex r-dynamic coloring for every simple and connected graph. Vertex r-dynamic coloring of graph G such that the neighbors of any vertex v receive at least min different colors. The r-dyanamic chromatic number written as . In this research we use edge corona product graph. Edge corona product of G and H as denoted by Let G and H is simple and connected graph, is obtained by taking graphs H as many copies edge of graph G and connected graphs H on two vertices edge of G. In this research will also related with creative thinking skills with four aspects as indicator. Those aspects are Fluency, Flexibility, Orisinality, and Elaboration. The results of this research is theorem about vertex r-dynamic coloring on edge corona product and related with creative thinking skills. Keywords: Vertex r-dynamic coloring, edge corona, creative thinking skills
ANALISIS SIRKULASI UDARA PADA TANAMAN KOPI BERDASARKAN TINGKAT KEKASARAN TUMBUHAN DAN POLA TANAM GRAF TANGGA PERMATA MENGGUNAKAN METODE VOLUME HINGGA Riastutik, Ervin Eka; Dafik, D; Fatahillah, Arif
Kadikma Vol 6 No 1 (2015): April 2015
Publisher : Department of Mathematics Education , University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/kdma.v6i1.1835

Abstract

Abstract. Coffee beans are one of Indonesian main export commodities. It can be seen from the amount of coffee exported to other countries, especially Europe. However, the vast area of coffee plantation does not make the productivity of the coffee beans become maximum. There are several factors which influence this condition. One of them is the cropping pattern of coffee plant and the air circulation that affect the pollination process of coffee flower. In this research, an air condition models was designed to solve the problem by employing Volume Hingga method. The models were designed based on the level of plant roughness, distance between coffee plants, and the cropping pattern of coffee (Diamond Ladder Graph). The results of the research is the mathematical models that influenced the level of plant roughness and the cropping pattern of coffee with angle. The symbol of plant roughness in this model is . Coefficient is limited at 0 until 1 (0< <1). The high value of plant roughness coefficient shows the high level of plant roughness. Key Words: coffee plant, air circulation, level of plant roughness, Volume Hingga Method, Diamond Ladder Graph.
PENERAPAN METODE PENEMUAN TERBIMBING DENGAN PENDEKATAN KONTEKSTUAL DALAM MENINGKATKAN HASIL BELAJAR SISWA PADA MATERI ARITMATIKA SOSIAL KELAS VII F SEMESTER GANJIL SMP NEGERI 1 RAMBIPUJI TAHUN AJARAN 2012/2013 Arynda, A; Susanto, S; Dafik, D
Kadikma Vol 3 No 3 (2012): Desember 2012
Publisher : Department of Mathematics Education , University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/kdma.v3i3.1018

Abstract

Abstract. Guided discovery method by contextual teaching is a learning way where students can find a concept with teacher guidence who motivates them to combine the knowledge taken from daily life. Beside that, it can also improve students’ activity and achievement in the teaching learning activity. The subject of the research is students of VII F grade of SMPN 1 Rambipuji. The data collection methods used in this research are documentation, observation, interview and test. The result of research showed that the increasing of students’ activity and achievement. The average percentage on the first cycle was 60,87 % and the second cycle was 72,54%. Whereas, the students’ average score of the last meeting in the first cycle was 74,49 and the second cycle was 81,24. The result also showed a good responses from the teacher and students. The good responses were proved by the increasing of students’ activity and achievement. Beside, there was also an effect on students thought between before and after teaching and learning process.Overall the guided discovery method by contextual teaching can improve students’ activity and achievement. Key Words : Guided discovery method by contextual teaching, students’ activity, achievement
KETERAMPILAN BERPIKIR TINGKAT TINGGI DALAM KEANTIAJAIBAN SUPER TOTAL SELIMUT GRAF CIRCULANT Dewy, Elitta P; Dafik, Dafik; Setiawani, Susi
Kadikma Vol 6 No 3 (2015): Desember 2015
Publisher : Department of Mathematics Education , University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/kdma.v6i3.5216

Abstract

Abstract. Cover total Labeling (a, d) -H- antimagical on a graph G = (V, E) is a bijectivefunction of the vertices and edges of a graph on the set of integers from 1, 2, 3, ...|V(G)|+|E(G)|, for every subgraph H of G which is isomorphic with H has a total labelingdifferent and form the arithmetic sequence. H-lebeling is said to have super antimagicalif vertices labeling and edge labeling where the label of vertices less than the label ofedges . One technique that can be applied to get a super anti-magic total labeling blanketon a graph that is engineering the partition of the set of integers with different sets d.Partition symbolized In this article examines the super labeling (a,d)-
PENGEMBANGAN PERANGKAT PEMBELAJARAN MATEMATIKA BERBASIS KARAKTER BERDASARKAN METODEWHOLE BRAIN TEACHING DENGAN BERBANTUAN MANGA STUDIO PADA SUB POKOK BAHASAN KUBUS DAN BALOK KELAS VIII SMP Syafitri, Ratna; Dafik, D; Hobri, H
Kadikma Vol 5 No 2 (2014): Agustus 2014
Publisher : Department of Mathematics Education , University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/kdma.v5i2.1364

Abstract

Abstract: This researchwas aimedto describe the process of the development of a characterbased Mathematics Learning Material basedon Whole Brain Teaching methodwith Manga Studio for cubes and cuboid topics at eight gradejunior high school. The learning developmental model refers to four D models proposed by Thiagarajan. The products of this research are lesson plan, student book, worksheet, and evaluation test.The resultsshow that the coeficient of validaty for each product are lesson plan reachs 0,94, student book reachs 0,91, work sheet reachs 0,91, and evaluation test reachs 0,82. it can be concluded that the characterbased Mathematics Learning Material basedon Whole Brain Teaching methodwith Manga Studio have fulfilledthe validity, practice, and effective criteria. Key words:Character,Whole Brain Teaching, Manga Studio,Four D models
PROSES BERPIKIR SISWA BERKEMAMPUAN METAKOGNISI RENDAH DALAM MENGERJAKAN SOAL ARITMETIKA Pratiwi, Putri Indah; Dafik, Dafik; Setiawani, Susi
Kadikma Vol 8 No 3 (2017): Desember 2017
Publisher : Department of Mathematics Education , University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/kdma.v8i3.6879

Abstract

Abstract. This research is a descriptive qualitative research. The purpose of this research was to describe the thinking processes of students capable of Metacognition is low in an arithmetic problem. Method of data collection consists of questionnaire, tests and interviews. The subject of this research as much as 2 students are selected based on the results of questionnaire the ability of Metacognition with the lowest score. The results of this research, students capable of Metacognition indicators able fulfilled implementation of the concept but it has a disadvantage in concluded, provide examples, and suggested the idea. Keywords: The Process of Thinking, Students Capable of Metacognition Is Low, Arithmetic.
Co-Authors A Arynda A H Rahmatillah A. Y. Harsya Adawiyah, R Adelia Putri Liowardani Agnes Ika Nurvitaningrum, Agnes Ika Agrita Kanty Purnapraja, Agrita Kanty Agustina M. Agustina Muharromah, Agustina Ahmad Adi Ahmad Musyaffa&#039; Hikamuddin Ahmad Syaiful Rizal, Ahmad Syaiful Aldyon Restu Azkarahman Alfian Futuhul Hadi Alfian Yulia Harsya, Alfian Yulia Alfin Nabila Taufik Alfiyantiningsih, Nur Amalina, Putri Nur Anindyta Anggirena Wulandari Anisa Meilinda Wardani Annadhifi, Muhammad Ilham Nurfaizi Antonius Cahya Prihandoko Arif Fatahillah Arika I. Kristiana Arika Indah Kriatiana Arika Indah Kristiana Arnasyitha Yulianti S, Arnasyitha Arnasyitha Yulianti Soelistya ArRuhimat, QurrotaA’yuniArRuhimat A’yuni Artanty Nastiti, Artanty Asari, Okta Endri Asy’ari, Muhammad Lutfi Awalin, Qonita Ilmi Aziza, Adinda Putri A’yun, Qurrotul Bawono, Darian Aji Bayu Aprilianto Brahmanto, Juanda Cangul, Ismail Naci Desak Made Dwika Saniriati Desi Febriani Putri Desi Febriani Putri Desy Tri Puspasari Desy Tri Puspasari, Desy Tri Devi Eka Wardani M, Devi Eka Dewi ANGGRAENI Dewy, Elitta P Dian Anita Hadi, Dian Anita Didik Sugeng Didin Trisnani, Didin Dina Tri Djoni Budi Sumarno Dliou, Kamal Dwi Agustin Retnowardani Dyna Probo Mukti Elok Asmaul Husna Elsa Yuli Kurniawati Elsa Yuli Kurniawati Endang Wahyuningrum Ermita R Albirri Ermita Rizki Albirri Ervin Eka Riastutik, Ervin Eka Ervin Oktavianingtyas Excelsa Suli Wildhatul Jannah Farah Rezita Nurtaatti, Farah Rezita Faruq, Fathulloh fatahillah, arief Fatoni, Muhamad Faizal Fia Cholidah, Fia Firdausiyah, Iftitahul Firman Firman Fitri Wulandari Gembong A. W. Hani&#039;ah Zakin Harianto Setiawan, Harianto Hendry Dwi Saputro Herninda Lucky Oktaviana Hilmiyah Hanani Hobri Husain, Sharifah Kartini Said I H Agustin I H. Agustin I Ikhwandi I M Tirta I Made Tirta I Made Tirta Ida Ariska Ika Hesti A. Ika Hesti Agustin, Ika Hesti Ika Mareta Imanul Umar Hawari Imro’atun Rofikah Indar Setiani Indi Izzah Makhfduloh Inge Yosanda Arianti, Inge Yosanda Irma Azizah Irma Azizah, Irma Istamala Idha Retnoningsih Jackson P Mairing Jannah, Excelsa Suli Wildhatul Jesi Irwanto, Jesi Joni Susanto, Joni K Kasturi K Khasan, K Karinda Rizqy Aprilia, Karinda Rizqy Khilyah Munawaroh Kholifatu Rosyidah Kholifatur Rosyidah Khusnul, Agustina Hotimatus Kiki Kurdianto Kiswara Agung Santoso Kurniawati, Elsa Yuli Kusbudiono Kusbudiono, Kusbudiono Laili, Nuryatul Laily Anisa Nurhidayati Liliek Susilowati Liowardani, Adelia Putri Lubis Muzaki Lusia Dewi Minarti Lusia Dewi Minarti M. Wildan Athoillah Makhfudloh, I I Mardiyah, Fitriyatul Marsidi Marsidi Maylisa, Ika Nur Miftahur Roifah Millatuz Zahroh, Millatuz Moch. Avel Romanza P, Moch. Avel Romanza Mohammad Fadli Rahman Mohanapriya, N. Muhammad Lutfi Asy’ari Muhlisatul Mahmudah, Muhlisatul Mursyidah, Indah Lutfiyatul Murtini Murtini, Murtini N Maylisa N Y. Sari Nabilah Ayu Az-Zahra Nafisa Afwa Sania Nindya Laksmita Dewi, Nindya Laksmita Novalita Anjelia Novian Nur Fatihah Novita Cahya Mahendra Novita Sana Susanti Novri Anggraeni, Novri Nur Alfiyantiningsih Nur Asia Jamil, Nur Asia Nurcholif Diah Sri Lestari Nuris Hisan Nazula Nuwaila Izzatul Muttaqi O A Safiati O. A. Safiati Ojat Darojat Okti Anis Safiati Permatasari, Putri Ayu Pratiwi, Putri Indah Prihandini, R M Prihandini, Rafiantika Megahnia Prihandini, Rafiantika Megahniah Prihandini, RM Prihandoko, AC Prof. Dr.I Nengah Suparta,M.Si . Pujiyanto, Arif Putra Mahendratama Sasongko, Tito Putri Rizky H.P, Putri Rizky Q Qoriatul QurrotaA’yuniArRuhimat A’yuni ArRuhimat Qurrotul A’yun Quthrotul Aini Fuidah R M Prihandini R Ratih R Rohmatullah R. Humaizah Rafiantika M Rafiantika Megahnia Prihandini Rahmadani, M R Rahman, Md. Saidur Randhi N. Darmawan, Randhi N. Randi Pratama Murtikusuma Ratna Syafitri Reza Mega Ardhilia Ridho Alfarisi Ridho Alfarisi, Ridho Ridlo, Zainur Rasyid Riniatul Nur Wahidah Rizki Aulia Akbar Robiatul Adawiyah Robiatul Adawiyah Robiatul Adawiyah Rohini, A Rukmana Sholehah, Rukmana S Slamin S Suciati S Suharto S Sunardi S Susanto S. Chususiyah S. M. Yunika Saddam Hussen Safira Izza Ghafrina Safira Izza Ghafrina Saifudin, Ilham Saniriati, Desak Made Dwika Santoso, Aji Mansur Septory, Brian Juned Shapbian Novindasari, Shapbian Shela Okta Grefina, Shela Okta Sherly Citra Wuni, Sherly Citra Sholihah, Siti Mar’atus Sih Muhni Yunika, Sih Muhni Siska Aprilia Hardiyanti Siska Binastuti Siska Binastuti, Siska Siswono, Hendrik Siti Aminatus Solehah Siti Latifah Siti Mar’atus Sholihah Soleh Chudin Sri Tresnaningsih Sufirman Sufirman Sulistio, Wahyu Sullystiawati, Lusia Herni Sunder, R. Suntusia Suntusia Suparti Supratiningsih Supratiningsih Susanto Susanto Susanto Susanto Susi Setiawani Tanti Windartini, Tanti Tasrip Rudiono Thoyibah, Fifi Tommi Sanjaya Putra Toto Bara Setiawan Tri Dyah Prastiti Ulul Azmi Umi Azizah Anwar Venkatachalam, M. Viantasari, Erwinda Viqedina Rizky Noviyanti Vutikatul Nur Rohmah Wahidah, Riniatul Nur Wahyu Lestari Wahyu Nikmatus Sholihah Wardani, Putu Liana Weny Wijayanti, Weny Wicha Dwi Wicha Dwi Vikade, Wicha Dwi WIHARDJO, EDY Wijayanti, Elsy Y Yunita Yanuarsih, Elly Yessy Eki Fajar Reksi Yuli Kurniawati, Elsa Yuli Nur Azizah, Yuli Nur Z R Ridlo Zainur Rasyid Ridlo