Ditapis dengan
Analisa Difraksi Sinar-X Material Ferroelektrik Ba0.8 Sr0.2tio3 (Bst) Sebagai…
Barium Strontium Titanate (BST) is a ferroelectric material that is widely used as storage media charge on the capacitor. Preparation of Barium Strontium Titanate ferroelectric material (BaxSr1-xTiO3) has been performed using solid chemical reaction by mixing barium carbonate (BaCO3), Strontium carbonate (SrCO3) and Titanium Dioxide (TiO2) with a ratio of the composition 0.8 : 0.2 : 1. Afte…
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- XIV, 50 hlm.: ill.: 29 cm
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- 03 01.114 (0060)
Efekvariasi Waktu Ball Milling Terhadap Karakteristik Elektrokimia Sel Superk…
Supercapacitor electrodes from rubber wood saw dust (RWSD) have been fabricated using experiment method with ball milling time variation of 20, 40, and 80 hours and thickness of 0.2 mm. Carbon electrodes were carbonized at 600oC an followed by physical activation method in CO2 gas atmosphere on the constant temperature of 900oC, and chemical activation was performed by KOH as an activating…
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- xvii, 95 hlm.: ill.: 29 cm
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- 03 01.114 (0059)
Pembuatan Karbon Aktif Dari Pelepah Kelapa Sawit Menggunakan Aktivator H2o Se…
Has been successfully is made activated carbon of starting materials oil palm midrib with carbonization temperature variation of 400°C, 500°C and 600°C and each of held for 20, 40 and 60 minutes. Activation be physics conducted at a temperature of 900 ° C for 20, 40, and 60 minutes to draining water vapor as activating agent. This research aims to know the characteristics of oil palm mi…
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- xv, 69 hlm.: ill.: 29 cm
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- 03 01.114 (0058)
Penentuan Tingkat Kebisingan Sepeda Motor Knalpot Standar Dan Modifikasi
The noise level produced by standard and modified motorcycles exhaust has been investigated. In this research, there were three types of motorcycles used namely Honda, Suzuki and Yamaha. Noise levels that generated by those motorcycles were measured using Sound Level Meter (SLM) SL 4112. In order to eliminate noise from other sources 5 different angles (0o, 45o, 90o, 135o, and 180o) were u…
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- xiv, 38 hlm.: ill.: 29 cm
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- 03 01.114 (0057)
Rancang Bangun Rangkaian Timer Otomatis Pesawat Atwood
A research has been conducted on designing of an automatic atwood experiment by using an automatic timer. The automatic timer consisted of three components, four relays, one stopwatch, and one accelerometer. This automatic timer was used to determine the duration time of the weight falling from a certain height. Testing of the timer was performed on the atwood machine with four mass m1 and …
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- xvii, 39 hlm.: ill.: 29 cm
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- 03 01.114 (0056)
Penentuan Nilai Kalori Detritus Hutan Mangrove Dengan Menggunakan Bomb Calori…
detritus using Bomb Calorimeter. The measurements were carried out in order to measure the physical parameters, such as water content, concentration of ash, amount of sulfur, and calorie content. Each sample was treated on the same pressure and volume. The samples were taken from Dumai city on five different regions. Quality test to the samples resulted calorie content of 4.185 cal/g, the …
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- xiv, 35 hlm.: ill.: 29 cm
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- 03 01.114 (0055)
Penerapan Media Pembelajaran Berbasis Maritim Untuk Meningkatkan Kemampuan Ko…
The process of learning physics in schools does not involve students directly so students are less active and creative which causes low cognitive learning outcomes of students, in this case it needs to be assisted with a creative learning media that can improve student learning outcomes, namely maritime-based media. This type of research is a quasi-experimental design with nonequivalent control…
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- ix, 103 hlm,; ill.: 29 cm
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- 05 08. 119 (0047)
Penentuan Dosis Radiasi Efektif Pasien Dari Citra Medis Ct Scan Bagian Abdome…
CT Scan provides the biggest contribution in receiving radiation dose for patients in radiodiagnostics. During this time the radiation dose parameters that have been used are volume Computed Tomography Dose Index (CTDIvol) and Dose Length Product (DLP). However both of these parameters have a weakness which is both parameters only describe the tool’s output dose, without considering the patie…
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- xv, 52 hlm.: ill.: 29 cm
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- 03 01.120 (0020)
Prediksi Kadar Particulate Matter (Pm10)Untuk Pemantauan Kualitas Udara Mengg…
Air pollution in Pekanbaru City, specifically at PM10 levels, occurs every year. A PM10 level prediction analysis was conducted using Artificial Neural Network backpropagation based on weather parameters. The goal is to monitor air quality as an anticipatory step. The data used was collected based on monthly data from the year of 2014 to 2018, including PM10 data, precipitation, wind speed, air…
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- xv, 48 hlm.: ill.: 29 cm
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- 03 01.120 (0019)
Analisa Kedalaman Air Panas Menggunakan Metode Geolistrik Konfigurasi Schlumb…
Analysis of teh depth of hot water have been carried out using Schlumberger Configuration geoelectrical method at Pawan, Rokan Hulu, Riau. Data from results of research on 2 lines were processed using software called “Progress” shows the depth of each line is 46 meters and 33 metersr. Interpretation on Line I resistivity values of 95,28 Ωm and 63,54 Ωm at depths of 3,77 meters to 46,00 me…
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- xvi, 47 hlm.: ill.: 29 cm
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- 03 01.120 (0017)
Sifat Magnetik Dan Struktur Partikel Dari Pasir Alam Desa Logas Kabupaten Kua…
Determination of magnetic properties and structural properties of natural sand from Logas Village, Kuantan Singingi have been carried out using a magnetic Probe Pasco PS-2162 and X-Ray Diffraction method. Two types of samples were synthesized using a multi step ball milling method for 90 hours and 90+30 hours. The product of the multi step ball milling was doped using Cobalt ions (Co(NO3)2.6H2O…
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- xxviii, 51 hlm.: ill.: 29 cm
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- 03 01.120 (0016)
Perancangan Antena Kombinasi Struktur Heksagonal Metamaterial Untuk Aplikasi …
The development of technology by choosing structures and materials is always prioritized to achieve good quality work performance. Also, expensive production costs and large dimensions are quite considered. Metamaterial structures with characteristics that are different from other materials can cover these deficiencies. The hexagonal split ring resonator (SRR-H) metamaterial produces DNG (doubl…
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- xv, 87 hlm.: ill.: 29 cm
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- 03 01.120 (0015)
Analisa Struktur, Morfologi Dan Sifat Optik Lapisan Tipis Nanorod Zno Di-Dopi…
Optimizing the physical properties of the semiconductor ZnO (Zinc Oxide) can be done through the addition of impurities, also known as doping. In this study, sulfur-doped ZnO (S-ZnO) nanorod thin films have been synthesized using the seed-mediated hydrothermal method. This method was carried out in two steps, i.e. the seeding of ZnO on FTO substrate and the growing of S-ZnO on ZnO seeds under h…
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- xvi, 57 hlm.: ill.: 29 cm
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- 03 01.120 (0014)
Pembuatan Karbon Aktif Berpori Dari Batang Ubi Kayu Untuk Elektroda Superkapa…
Porous activated carbon from young cassava stems for supercapacitor electrodes has been synthesized and characterized successfully. Preparation starts from cutting samples, drying, pre-carbonizing at temperature of 250°C for 2.5 hours, crushing using mortar-Ball-Milling, and uniformizing particle size of ˂53μm using a sieving equipment. This study focuses on the effect of variations in the c…
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- xvi, 62 hlm.: ill.: 29 cm
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- 03 01.120 (0013)
Peningkatan Kualitas Air Bawah Tanah Tps Sukajadi Menggunakan Teknik Koagulas…
ABSTRACT The quality of Sukajadi TPS underground water has been improved. Using coagulation techniques and slow sand filter filtration. The problem that is very much related to ground water is the reduced quality of water for domestic use caused by leachate. Leachate is defined as any contaminated liquid that is generated from water pollution through a solid waste disposal site. The results s…
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- xxi, 58 hlm.: ill.: 29 cm
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- 03 01.120 (0012)
Karbon Aktif Dari Tandan Pisang Dengan Variasi Kalium Hidroksida Berbantuan I…
The aims of this study are to determine the influence of consentration variation potassium hydroxide and adsorption of heavy metals from activated carbon. Pra-carbonization of banana empty bunch fruit was carried out using electric oven at 180oC for 1 hour. Chemical activation used activating agent KOH of 2M, 3M and 4M for 20 hours at 30oC and then 60oC for 2 hours which were coded as TP2M, TP3…
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- xiii, 52 hlm.: ill.: 29 cm
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- 03 01.120 (0011)
Analisis Empiris Lkpd Berorientasi Model Pembelajaran Berbasis Proyek Terhada…
PjBL IPA learners worksheets are worksheets that are prepared and designed with emphasis on the independence of learners in constructing their learning through project assignments. The main objective of this research is to develop a valid and practical PJBL-based science student worksheet on simple aircraft material for class VIII junior high school and to know the absorption of students scienc…
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- vii, 109 hlm,; ill.: 29 cm
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- 05 08. 120 (0020)
Uji Coba Lkpd Berorientasi Model Pembelajaran Berbasis Proyek Pada Materi Glb…
Project-based LKPD is a teaching material that is able to provide details and clear direction to students in order to carry out project tasks effectively and efficiently. The aim of the research is to develop a valid and practical project-based LKPD on GLB and GLBB materials for class VIII in junior high school. The study was conducted through the validation stage 2 times. The first validation …
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- vii, 103 hlm,; ill.: 29 cm
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- 05 08. 120 (0019)
Analisis Kemampuan Berpikir Analisis Siswa Dalam Pembelajaran IPA
This study aims to describe the level of analytical thinking skills of VII grade students of SMP Negeri 13 Pekanbaru on natural science subjects. This type of research is a survey research. The subjects of this study were 113 students who were in 3 different levels. Data collection techniques in the form of giving objective questions amounted to 27 questions with 3 aspects, where each aspect co…
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- viii, 89 hlm,; ill.: 29 cm
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- 05 08. 120 (0018)
Pengaruh Konsentrasi Kalium Hidroksida Terhadap Kualitas Karbon Aktif Berbasi…
This study aims to determine the influence of concentration of potassium hydroxide (KOH) on the adsorption of Pb2+ and Cu2+ metal ions in industrial used water. The activated carbon was prepared from pineapple crown waste. Pineapple crown was pre-carbonized at 180oC for 1 hours. Chemical activation was done using KOH with variations in concentrations of 2, 3, and 4 M. The samples were irradiate…
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- xiv, 55 hlm.: ill.: 29 cm
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- 03 01.120 (0010)
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