bluuebunny/crossref_metadata_2025_split huggingface dataset:
SIMULATION ANALYSIS OF THE TOTALLY ASYMETRIC SIMPLE EXCLUSION PROCESS TO DETERMINE THE PROFIL OF THE ONE-BODY CORRELATION FUNCTION, TWO-BODY CORRELATION FUNCTION, AND THREE-BODY CORRELATION FUNCTION AROUND THE ENDS OF THE LATTICE WITH LATTICE NUMBER VARIATION
Authors: Adipurno R. A. , Dwandaru Wipsar Sunu Brams , Darmawan Denny , Ruwanto Bambang 
Published: March 2017

This study aimed to determine the behavior of one-body, two-body, and three-body correlation functions of the model dynamics TASEP with sequential updating rules and open boundary conditions on vehicular traffic around the end of the traffic light. The study began with the determination of algorithm to model the dynamics of TASEP and coding, with the variation of the input rate (α) , the output rate (β), and the number of lattice sites (N). Then the program run with specific time limit (t) and number of systems (M). The value of the one-body correlation function determines the average occupancy of particles in lattice site-i at time t. Two-body correlation function determines the average occupancy of particle at site-i when there is another particle occupying the nearest neighbor lattice, i+1, at time t. Three-body correlation function determines the average occupancy of particles to occupy lattice site-i when there are other particles occupying the nearest and next nearest neighbor lattice sites, i+1 and i+2, at time t. The value of the one-body correlation function turns out to be larger than the value of the two-body correlation function. The value of the two-body correlation function is larger than the value of the three-body correlation function for all phases. The correlation between a vehicle to another vehicle will be even greater. Keywords: TASEP, sequential updating, n-body correlation function
VALIDATION OF CYCLAMATE ANALYSIS METHOD WITH SPECTROPHOTOMETRY AND TURBIDIMETRY
Authors: Padmaningrum Regina Tutik , Marwati Siti 
Published: March 2017

This research aims to validate methods of analysis by spectrophotometry and turbidimetry cyclamate in the sample drink mango-flavored jelly drink by spectrophotometry with hypochlorite reagent, ultraviolet spectrophotometry (without reagent) and turbidimetry. The object of research was the validity parameters spectrophotometric method were linearity, linear range, the limit of detection, limit of quantitation, precision, and accuracy. The calibration curve of standard solution of sodium cyclamate in the spectrophotometric method with hypochlorite reagent, UV spectrophotometry (without reagent), and turbidimetry are linear. Linear range each method respectively at a concentration were (211.36-747.08); (16.000-146.434); and (1.8521-6.1717) ppm. The detection limit of each method successively were 53.6028; 0.5833; and 0.2723 ppm. Limit of quantitation each method successively were 66.9948; 1.9443; and 0.8068 ppm. Spectrophotometric analysis method cyclamate with hypochlorite reagent had good precision and accuracy. Ultra violet spectrophotometric analysis method of cyclamate have a good precision but the accuracy was not good. Turbidimetric methods analysis of cyclamate had precision and accuracy were not good.Keywords: method validation, spectrophotometry, turbidimetry, cyclamate
ANALYSIS OF RELATION TERM BETWEEN CUMMULATIVE PERFORMANCE INDEX AND SNMPTN DATA BASE USING APPRIORITY ALGORITHM
Authors: Hernawati Kuswari , Insani Nur , Sumarno Bambang , Waryanto Nurhadi 
Published: March 2017

In the university management, in addition to resources infrastructure, facilities and people, information systems is one of the resources that can be utilized to enhance the competitive advantage and provide accurate data for the benefit of policy makers, for example, information about the test scores SNMPTN, region of origin students, GPA student, students study duration. Yogyakarta State University to accept new students with an average of approximately 6,000 people annually, through the National Selection of State Universities Student (SNMPTN), SBMPTN (Joint Student Selection State University) and the Independent Selection exam (SM). With the increasing number of prospective students through SBMPTN, then increasingly also the basic data in a database of prospective students annually. By utilizing basic data on SBMPTN students and grade point average (GPA), the study aims to apply data mining techniques using the association rule Apriori algorithm to look for patterns of association between baseline SBMPTN and UNY students GPA. Basic data to be processed SBMPTN mining student data origin include school, home school district data, earnings data parent, parental education level data, the average value data UAN, and data values academic potential test (TPA). The results obtained are no data in the data base SNMPTN that significantly affect the acquisition of GPA. This is evident from the association rules derived from the 50 best asosoasi rules not seen the emergence of itemset GPA accompanied by the emergence of other itemset. Keywords: Data Mining, Association Rule, Algoritma Apriori, SNMPTN
SYNTHESIS OF BIODIESEL FROM KAPUK SEED OIL (Ceiba Pentandra L) AT VARIATION STIRRING DURATION IN TRANSESTERIFICATION PROCESS
Authors: Siswani Endang Dwi , Kristianingrum Susila , Tohari Tohari 
Published: March 2017

The synthesis of biodiesel targeted as SNI 04-7182-2006 standard has been done from kapuk randu seed, following two steps i.e. sokhlet extraction process of kapuk seed oil from kapuk seed using n-heksane as a solvent, and the production of biodiesel from kapuk seed oil by transesterification process using methanol and KOH as catalyst. Transesterificatin process was performed at temperature 50 oC with the variation of stirring duration as followed 50, 75, 100 and 125 minutes. The kapuk randu extraction resulted % kapuk randu seed oil, while the transestherification process resulted around 55 - 65%. The biodiesel product characteristics provided the density value of all biodiesel at stirring durations variation are suitable with SNI standard (850 – 890 kg/m3), the viscosity value of all biodiesel are higher than the range SNI value (2,3 – 6,0 cSt). While the flash point values are lesser than SNI standard (10160 - 11000 cal/g). Keywords: kapuk randu seed, transestherification, biodiesel
MODIFICATION OF KELUD VOLCANIC ASH 2014 AS SELECTIVE ADSORBENT MATERIAL FOR COPPER(II) METAL ION
Authors: Kristianingrum Susila , Siswani Endang Dwi , Suyanta Suyanta 
Published: March 2017

Abstract This research aims to prepare an adsorbent from Kelud volcanic ash for better Cu(II) adsorption efficiency than Kiesel gel 60G E'Merck. Adsorbent synthesis was done by dissolving 6 grams of volcanic ash activated 700oC 4 hours and washed with HCl 0.1 M into 200 ml of 3M sodium hydroxide with stirring and heating of 100 °C for 1 hour. The filtrate sodium silicate was then neutralized using sulfuric acid. The mixture was allowed to stand for 24 hours then filtered and washed with aquaDM, then dried and crushed. The procedure is repeated for nitric acid, acetic acid and formic acid with a contact time of 24 hours. The products were then characterized using FTIR and XRD, subsequently determined acidity, moisture content, and tested for its adsorption of the ion Cu (II) with AAS. The results showed that the type of acid that produced highest rendemen is AK-H2SO4-3M ie 36.93%, acidity of the adsorbent silica gel synthesized similar to Kiesel gel 60G E'Merck ie adsorbent AK-CH3COOH-3M and the water content of the silica gel adsorbent synthesized similar to Kiesel gel 60G E'Merck ie adsorbent AK-H2SO4-2 M. The character of the functional groups of silica gel synthesized all have similarities with Kiesel gel 60G E'Merck as a comparison. Qualitative analysis by XRD for all modified adsorbent showed a dominant peak of SiO2 except adsorbent AK-H2SO4 amorphous and chemical bonds with FTIR indicates that it has formed a bond of Si-O-Si and Si-OH. The optimum adsorption efficiency of the metal ions Cu(II) obtained from AK-H2SO4-5M adsorbent that is equal to 93.2617% and the optimum adsorption capacity of the Cu(II) metal ions was obtained from the adsorbent AK-CH3COOH-3M is equal to 2.4919 mg/ g. Keywords: adsorbents, silica gel, adsorption, kelud volcanic ash
Pembuatan dan Karakterisasi Edible Film dari Poliblend Pati Sukun-Polivinil Alkohol dengan Propilenglikol sebagai Plasticizer
Authors: NOFIANDI DEDI , Ningsih Wida , Putri Asa Sofie Liandana 
Published: March 2017

<p align="center">Buah sukun memiliki kandungan pati 60% dan pemanfaatannya masih belum optimal serta jumlahnya melimpah hampir di setiap daerah di Indonesia. Pati merupakan salah satu hidrokoloid yang biasa digunakan sebagai bahan dasar pembuatan edible film. <em>Edible film</em> yang terbuat dari pati saja memiliki sifat mekanik yang sangat rendah (rapuh dalam keadaan kering). Pada penelitian ini <em>edible film </em>dibuat dari poliblend pati sukun-polivinil alkohol dengan menggunakan <em>plasticizer</em> propilen glikol. Perbandingan antara pati sukun dengan polivinil alkohol adalah F1 (1:1), F2 (1:2) dan F3 (2:1) dengan total poliblend 6 gram. Konsentrasi propilen glikol 30% dari jumlah poliblend, pengawet yang digunakan nipagin 0,05% dan nipasol 0,1%. Pembuatan <em>edible film</em> ini dilakukan dengan cara melarutkan semua bahan dan dipanaskan pada suhu 75 <sup>o</sup>C selama 50 menit sambil diaduk kemudian dituangkan pada wadah yang rata dan dibiarkan selama 3 hari pada suhu kamar. <em>Edible Film</em> yang diperoleh dikarakterisasi meliputi pengukuran ketebalan, pemeriksaan kadar air, pH, profil uji daya serap, uji kuat tarik, persen pemanjangan dan laju transmisi uap air. Secara umum hasil karakterisasi <em>edible film</em> terbaik adalah pada F2 yaitu perbandingan pati sukun-polivinil alkohol 1:2 dengan karakterisasi ketebalannya 0,47 mm; kadar air 15,558%; pH 7,10; profil daya serap pada menit ke 10 rata-rata sebesar 237%; uji kuat tarik 7,10 N/mm<sup>2</sup>; persen pemanjangan 49,67% dan laju transmisi uap air sebesar 0,1464 mg/jamcm<sup>-2</sup>.</p>
PENGINTEGRASIAN SISTEM APLIKASI MANUFAKTUR DENGAN ALAT TIMBANG DAN CETAK BARCODE PADA PT. XYZ
Authors: Wardhani Nia Kusuma 
Published: March 2017

PT. XYZ merupakan salah satu perusahaan manufaktur yang berkecimpung pada industri kosmetik terbesar di Indonesia. Setiap perangkat industri yang digunakan dalam pembuatan kosmetik merupakan alat-alat terkini serta menerapkan standar operasional yang ketat dalam pelaksanaannya. Kebutuhan operasional saat ini adalah mengoptimalkan operasional penggunaan barcode sehingga keluaran produk dalam bentuk boks inner dan master telah diidentifikasi dengan stiker barcode dan data-datanya tersimpan dalam database. Kebutuhan lainnya adalah pengontrolan minimum dan maksimum berat boks dalam rangka standarisasi produk dari hasil produksi, apabila tidak sesuai dengan maka hasil produksi tersebut dapat dievaluasi kembali. Aplikasi Barcode dan Timbangan merupakan system aplikasi penunjang yang berfungsi sebagai saringan akhir dari produk dan mencetak informasi yang dibutuhkan dalam bentuk Barcode batang dan QR-code. Diharapkan penerapan barcode ini dapat meningkatkan kinerja manajemen perusahaan terutama pada bagian produksi dan operasional penjualan. Selain itu juga dapat mengurangi biaya operasional karena dapat menghindari kerugian dari kesalahan pencatatan data dan mengurangi pekerjaan manual yang dilakukan secara berulang-ulang.
ANALISIS PERFORMANSI SERVER SISTEM INFORMASI AKADEMIK UNIVERSITAS MERCU BUANA DENGAN OPEN QUEUEING NETWORK
Authors: Ramayanti Desi 
Published: March 2017

SIA (Sistem Informasi Akademik) merupakan sebuah sistem informasi penting yang berkaitan dengan nilai yang sudah diperoleh untuk setiap matakuliah yang telah diambil, status dari mahasiswa pada semester terkait, dll. SIA ini akan selalu diakses oleh mahasiswa dan juga dosen di lingkungan UMB, baik pada setiap awal semester, pertengahan semester atau pada akhir semester. SIA merupakan fitur penting yang harus tetap available setiap saat, dan mampu melayani ribuan user dengan baik. Keterlambatan data (delay), kehilangan data (lost) dan kerusakan data (error), harus menjadi point penting dalam sebuah system, karena jika ketiga hal tersebut terjadi, maka nilai informasi akan berkurang atau menjadi tidak berarti lagi, dan hal ini akan sangat merugikan, khususnya kepada mahasiswa sebagai konsumen yang wajib mendapatkan pelayanan terbaik. Maka dikarenakan hal tersebut, maka penulis melakukan penelitian berkaitan dengan performansi SIA saat ini. Dalam penelitian ini, penulis melakukan analisis performansi SIA yang terkait dengan arrival rate resource, service time resource utilisasi resource, Rata-rata jumlah kunjungan ke resource, service demand resourcedan arrival rate maksimum dari server. Dari hasil analisis maka diperoleh kesimpulan bahwa performansi dari server SIA yang ada saat ini kurang maksimum dengan jumlah mahasiswa yang ada. Server Sistem Informasi Akademik saat ini hanya mampu melayani request per detik sebanyak 7.278 request. Sedangkan arrival rate yang ada yaitu 8.88 request per detik, sehingga kemungkinan lost request adalah 21.98%.
PENINGKATAN BERPIKIR KREATIF DAN HASIL BELAJAR FISIKA MELALUI PENDEKATAN CREATIVE PROBLEM SOLVING (CPS)
Authors: Subakir Bambang 
Published: March 2017

The objective in this research to describing implementation oflearning physics using the approach Creative Problem Solving (CPS) toimprove creative thinking skills and students’ achievement in class XI IPA-1SMA Harapan 3 Delitua. The research method applied is Classroom ActionResearch (CAR) through two learning cycles; each cycle consisted byplanning, implementation, observation and reflection. The results showedthat learning physics with CPS approach can improve students’ ability tothink creatively. After learning undertaken by the CPS approach increasedstudents ability to think creatively and achievement. This is evidenced by: (1) Increasing the number of students who pass out of 12 person in the first cycleto 29 person in the second cycle with an average of 77,39 learning outcomes.N-gain in the first cycle of 0.19 is included in the category of low-and N-gainin the second cycle of 0.30 is included in the medium category, (2) Activitygroup average student in the learning process are included in the categoryActivities Fair increased to High Activity category, and (3) The use ofcreative thinking of students in the first cycle an enough increased to a highin the second cycle. Creative thinking ability of students in teaching physicsto provide benefits in solving problems in the community.
THE EFFECT OF ATI (APTITUDE TREATMENT INTERACTION) LEARNING MODEL TO ACTIVITIES AND STUDENTS PHYSICS SCIENCE GENERIC
Authors: Dongoran Zulkipli 
Published: March 2017

This study aims to analyze: (1) the difference between the model of learning activities of students immediately ATI learning model, (2) differences in physical science students' generic capabilities between direct instructional model and learning model ATI. This study was a quasiexperimental study. The population was SMA Negeri 11 students. The sample selection is done at random to randomize the class. The instrument used consisted of: (1) observation sheet learning activity (2) tests the ability of generic science subject matter physics with dynamic power. The test is used to obtain the data is in the form essays. The data in this study were analyzed using a comparative analysis of two independent samples. The results showed that: (1) activity taught students with learning model ATI better than students who are taught using a direct instructional model (2) the ability of generic science physics students taught using learning model ATI better than students who are taught using direct instructional model.
ANALISIS PENGARUH MODEL PEMBELAJARAN KOOPERATIFTIPE GROUP INVESTIGATION DAN PEMAHAMAN KONSEP AWAL TERHADAP HASIL BELAJAR SISWA DI SMA NEGERI 1 TELUK MENGKUDU
Authors: Tambunan Elida , Bukit Nurdin 
Published: March 2017

Penelitian ini bertujuan: Untuk mengetahui apakah ada perbedaanhasil belajar fisika siswa dengan model pembelajaran kooperatif tipe groupinvestigation dan model pembelajaran direct instruction, untuk mengetahuiapakah ada perbedaan hasil belajar fisika antara siswa yang memilikipemahaman konsep awal tinggi dan siswa yang memiliki pemahamankonsep awal rendah, untuk mengetahui apakah ada interaksi antara model kooperatif group investigation dengan pemahaman konsep awal siswa dalam mempengaruhi hasil belajar siswa. Sampel dalam penelitian ini dilakukan secara cluster random sampling sebanyak dua kelas, dimana kelas pertamasebagai kelas eksperimen diterapkan model pembelajaran kooperatif groupInvestigation dan kelas kedua sebagai kelas kontrol diterapkan modelpembelajaran direct instruction. Instrumen yang digunakan dalam penelitianini yaitu instrumen tes hasil belajar fisika dalam bentuk uraian sebanyak 9soal dan tes pemahaman konsep awal sebanyak 12 soal yang telahdinyatakan valid dan reliabel. Dari hasil penelitian dapat disimpulkan bahwaterdapat perbedaan hasil belajar fisika siswa dengan model pembelajarankooperatif group investigation dan model pembelajaran direct instruction.Terdapat perbedaan hasil belajar fisika antara siswa yang memiliki pemahaman konsep awal tinggi dan siswa yang memiliki pemahaman konsep awal rendah. Terdapat interaksi antara model pembelajaran kooperatif groupinvestigation dan pemahaman konsep awal siswa terhadap hasil belajarfisika. Model pembelajaran kooperatif group investigation lebih optimalditerapkan untuk siswa yang memiliki pemahaman konsep awal tinggisedangkan model pembelajaran direct instruction pemahaman konsep awaltinggi dan rendah hasil belajar yang tidak berbeda. Kata kunci: group investigation, pemahaman konsep awal, hasil belajar
EFFECT OF SKILL APPROACH TO PROCESS OF STUDENT LEARNING SMA NEGERI 1 SEUNUDDON NORTH ACEH
Authors: Susanto Irwan 
Published: March 2017

This study aims to determine the skills approach to the learning outcomes of students in the subject matter of heat in class X at SMA Negeri 1 Seunuddon Aceh Utara. This research is a form of experiment. The population in this study were all second semester class X at SMA Negeri 1 Seunuddon Aceh Utara T.P.2013/2014 consisting of two classes of 60 people. The sample of this study is the total sample is X-1 (class experiment) is taught with the skills approach, and X-2 (control group) were taught using the conventional approach amounted to 30 0rang. Research instrument is the achievement test in the form of 20 multiple-choice questions that consists of 5 options first tested on students outside of the sample, to determine the validity, reliability, distinguishing features, and level of difficulty of the test. From the results of this study showed the average value of the experimental class pretest was 41.66 and 38.66 the control class is through testing prior knowledge obtained t <t table (1.511 <2.002) These results indicate that the ability of the two classesare the same initial. Then given a different treatment. Experimental class withthe skills approach and control classes with conventional approaches. Aftertreatment carried posttest with an average yield of 73.00 experimental class and control class 60.66. From the results of the t test obtained t> t table (4.224>1.671) with α = 0.05 df = 58, it can be concluded that there is a significant influence on the process skills approach to student learning outcomes in the subject matter of heat in class X at SMA Negeri 1 Seunuddon Aceh UtaraT.P.2013/2014.
EFFECT OF PROBLEM BASED LEARNING (PBL) MODEL AND LEARNING MOTIVATION ON LEARNING OUTCOMES OF CLASS XI SEMESTER II SUBJECT MATTER OF FLUID DYNAMICS IN SMA
Authors: Indagiarmi Yosico , Siregar Abdul Hakim 
Published: March 2017

This research aims to determine the effect of Problem Based Learning model on the student’s learning outcomes in the subject matter dynamic fluid. This research is a quasi-experimental study with two group design Pre-test and post-test, this study population was all students of class XI SMA Private Panca Budi Medan TP 2014 / 2015. The samples were taken by cluster random sampling technique, which consists of two classes, PBL applied in experiment class and conventional learning applied in control class, Data was obtained by using 12 essay instruments, observation ofactivities, attitudes and skills of students. From the analysis of the data for the experiment class gained an average of 30.5 Pre-test and the average value of Post-test 74.2. Control classes gained an average of 33.2 Pre-test and average Post-test 65.8. Both classes are normally distributed and have a homogen variation. t count was 2,016 at the real level of 0.05 where t count was 2,407 and t count > t table. So that there is significant effect of Problem Based Learning (PBL) to student’s learning result in the subject matter dynamic fluid of class XI SMA Private Panca Budi Medan TP 2014/2015.
EFFECT OF PROBLEM BASED LEARNING MODEL AND MOTIVATION LEARNING ON LEARNING OUTCOMES IN CLASS X SMA SINAR HUSNI
Authors: Pelawi Halimatus Sakdiah , Sinulingga Karya 
Published: March 2017

This study aims to determine the effect of problem based learning model towards student learning outcomes, determine the effect learning motivation toward student learning outcomes and determine the effect of interaction between learning model with motivation toward learning outcomes of students. This research is aquasi-experimental, conducted at SMA Swasta Sinar Husni the academic year 2014/2015. Population in the study were all students of class X IPA consisting of 2 classes. Sampling was done by purposive sampling, while the determination of a with drawal carried out by random sample class. This study uses Two group pretest-posttest design. Data analysis using ANOVA two ways. From the study concluded that the results of studying physics students apply problem based learning model is better than the conventional learning models, learning outcomes Physics students who have learning high motivation is better than students with low learning motivation, and there was an interaction between the model of learning by learning motivation on student learning outcomes. That is,the result of learning with problem based learning model is always better than the conventional learning. Likewise, learning outcomes of students who have high motivation to learn will always be better than the learning outcomes of students who have low learning motivation.
THE EFFECT OF KOOPERATIF LEARNING MODEL TYPE GROUP INVESTIGATION AND FIRST CONCEPT UNDERSTANDING TO SCIENCE PROCESS SKILL OF SENIOR HIGH SCHOOL STUDENT
Authors: Siregar Hiba Dertyana , . Motlan 
Published: March 2017

This study aims to: know the difference science process skills of students using cooperative learning model group investigation with direct instruction teaching model. This study is quasi exsperiment. The sample in this research was done by using cluster random sampling two classes. Instruments used in this research is understanding the concept of the initial test in the form of multiple-choice comprised of 10 questions and test science process skills in the form of 15 questions of multiple choice. From the results of this study concluded that: 1) there are differences in students' science process skills are taught using cooperative learning model group investigation, 2) there is a difference science process skills of students who have an understanding of the concept of high and low initial, 3) there is an interaction between the model of cooperative learning group investigation and understanding of the initial concept of the science process skills that students have a better learning model applied to students who have an understanding of the high initial concept.