Identifikasi Kerusakan Barrel Lifting Device Dan Barrel Double Lid Hotcell 001/102 Di Irm

IDENTIFIKASI KERUSAKAN BARREL LIFTING DEVICE DAN BARREL DOUBLE LID HOTCELL 001/102 DI IRM. Telah dilakukan identifikasi dengan melakukan analisis terhadap kerusakan barrel lifting device dan barrel double lid hotcell 001/102 di Instalasi Radiometalurgi (IRM). Survei lapangan dan dokumen yang berkaitan dengan barrel lifting device dan barrel double lid hotcell 001/102 serta gambar wiring diagram digunakan untuk menganalisa dan mengidentifikasi kerusakan. Tujuan dari identifikasi kerusakan alat ini untuk menetapkan ruang lingkup pekerjaan perbaikan dan penggantian suku cadang. Hasil identifikasi kerusakan diketahui bahwa: Sistem Program Logic Control (PLC), sistem interlock, sistem pompa hidrolik tidak berfungsi, saklar darurat (saklar emergency) rusak dan selang compressed air (udara tekan) untuk barrel double lid hancur (rusak). Dapat disimpulkan bahwa untuk memfungsikan kembali alat ini maka perlu dilakukan perbaikan dan penggantian komponen/suku cadang yang sesuai seperti: sistem modul PLC, sistem interlock, sistem pompa hidrolik dan saklar emergency serta selang udara tekan, karena sistem dan komponen-komponen tersebut telah rusak

Aplikasi Sistem Manajemen Pengiriman Barang Didukung Informasi Lewat GPRS

Most production has transmitted an item. It is a full of activity to transmit and receive items. Service that given to the customer need to be trustworthy and flexible. The services using GPRS (General Packet Radio Service) that given customers information. This service could improve the logistic financial situation. The first showed which services were actually making profit, the second indicated those which were likely to be profitable in the future. As a student work in it division, the writer had been given tasks. The task was to analyzing functionality of software for Logistic Management System. The first task was making an easy for documentation about history of transaction store items. The second task was making service for customers that knows a position for customer items. The third task was getting worker attendance information that important to make a management decision. The final tasks was to implement a logistic management system that design to make an effectively for management. The task above will be described more on the following chapter

Single-Layer Drying Behavior of Red Chili

This study was designated to determine the best model that could represent the behavior of the moisture content of cut red-Chili, Tombak variety, during the single layer drying process. A Tray Dryer Model EH-TD-300 Eunha Fluid Science was used to support the experiment. The dryer was constructed to flow the drying-air parallel with the crop observed. Three levels of drying air velocity (1.0 m/s, 1.5 m/s, and 2.0 m/s) were applied under a constant drying air temperature of 47oC. The average relative humidity (RH) in the drying chamber during the drying period was around 39%. The results of this study strongly suggested that the Hii et al. (2008) model, MR = 0.76832.exp(-0.06607.t1.43089) + 0.25351.exp(-0.06881.t1.43089) and MR = 0.76758.exp(-0.10141.t1.47651) + 0.30562.exp(-0.10018.t1.47651), were the best model in predicting the moisture behavior of the cut Chili, Tombak variety, across the elapsed drying time when the drying air velocities were set to 1.5 m/s and 2.0 m/s, respectively. However, the Diffusion Approach model, MR = -0.02821.exp(0.01340.t) + (1.02821)).exp(-0.107576.t), was observed to be the best model at the drying air velocity of 1.0 m/s

Analisis Penggunaan Polydimethyl Siloxane sebagai Bolus dalam Radioterapi Menggunakan Elektron 8 Mev pada Linac

Percentage depth dose at the Linac has not reached 100% on the surface and should be made an effort to treat skin cancer or skin cancer that is closer to the surface so that the maximum dose obtained cancer, one of the efforts is the use of bolus. The research reviewer feasibility of using polydimethylsiloxane as materials bolus in radiotherapy. Bolus made with a thickness of 3, 6, 9 and 12 mm with a size of 11x11 cm2, tomography image is then taken using a CT-scan to determine the CT-number that is used to calculate the density and compared to the density of mass and volume ratio. Bolus irradiated with electron 8 MeV at 100 MU for 60 seconds and measured the dose absorbed at a depth of 0; 0.5; 1.0; 1.5; 2.0 and 2.5 cm. The result of the calculation using the CT-number density is 1.24 ± 0.02 g /cm3 and the density calculation results using the ratio of the mass and volume was 1.25 ± 0.01 g / cm. Absorbed dose at the surface with the use of a bolus of 3, 6, 9 and 12 mm by 82.09%; 85.13%, 89.12% and 93.48%, while without using bolus which showed the value of absorbed dose amounted to 78.23%. Absorbed dose at a depth of 2.5 cm with the use of a bolus of 3, 6, 9 and 12 mm by 79.84%; 49.26%; 34.52% and 17.80%, while without using bolus which showed the value of absorbed dose amounted to 88.68%.These results show the density of the bolus polydimethyl siloxane has similarities with soft tissue density and may increase the dose of the surface and reduce the dose depth so polydimethyl siloxane may be one of the reference materials that can be used as a bolus in radiotherapy

Peran Bakteri Penambat Nitrogen untuk Mengurangi Dosis Pupuk Nitrogen Anorganik pada Padi Sawah

The availability of nitrogen in soil is one of the limiting factors to support growth and rice productivity. Nitrogen-fixing bacteria have ability to utilize air nitrogen so it becomes available in the soil. The use of nitrogen-fixing bacteria could potentially reduce application of nitrogen fertilizer. The aim of the experiment was to determine the role of nitrogen-fixing bacteria in reducing inorganic N fertilizer on lowland rice. The research was conducted in April-August 2012 at the plastic house of Babakan Sawah Baru Experimental Station, IPB. The experiment was arranged in randomized block design with two factors, namely nitrogen fertilizer and type of bacteria. The dosage of N fertilizer (urea), i.e. 0, 50, 75 and 100 kg N ha-1. The types of bacteria, i.e. without bacteria, Azotobacter-like, Azospirillum-like, and consortium. The result of the experiment showed that N fertilization significantly affected to all variables except the percentage of empty grains per panicle, 1,000 grain weight, and N content of plant. The types of bacteria significantly affected to root dry weight, number of filled grain per panicle, greenness of leaf, uptake and content of nitrogen (shoot and grain), grain weight per plot. Consortium of bacteria were capable to reduce 25% the use of inorganic N fertilizer from recommendation doses (100 kg N ha-1) that based on the value of agronomic effectiveness

Analysis and Voice Recognition in Indonesian Language Using MFCC and SVM Method

Voice recognition technology is one of biometric technology. Sound is a unique part of the human being which made an individual can be easily distinguished one from another. Voice can also provide information such as gender, emotion, and identity of the speaker. This research will record human voices that pronounce digits between 0 and 9 with and without noise. Features of this sound recording will be extracted using Mel Frequency Cepstral Coefficient (MFCC). Mean, standard deviation, max, min, and the combination of them will be used to construct the feature vectors. This feature vectors then will be classified using Support Vector Machine (SVM). There will be two classification models. The first one is based on the speaker and the other one based on the digits pronounced. The classification model then will be validated by performing 10-fold cross-validation.The best average accuracy from two classification model is 91.83%. This result achieved using Mean + Standard deviation + Min + Max as features

Hubungan Karakter Daun dengan Hasil Padi Varietas Unggul

Penelitian ditujukan untuk mempelajari hubungan karakter daun dengan hasil padi varietas unggul, dan dilaksanakandi kebun percobaan Balai Besar Penelitian Tanaman Padi, Muara, Bogor pada bulan Desember 2010 sampai Juni 2011.Percobaan menggunakan rancangan kelompok lengkap teracak dengan empat ulangan dan menggunakan 12 padi varietasunggul sebagai perlakuan. Varietas yang digunakan adalah Rojolele dan Pandan Wangi (varietas unggul lokal/VUL); IR64 dan Ciherang (varietas unggul baru/VUB); Fatmawati, Cimelati, galur BP360 dan B11143 (padi tipe baru/PTB);serta Maro, Rokan, SL-8 SHS, dan PP1 (hibrida). Hasil penelitian menunjukkan Galur B11143, Maro, Cimelati, dan Rokanmemberikan hasil gabah tertinggi. Tingginya hasil berhubungan dengan karakter sudut tiga daun bagian atas, luas daunbendera, kandungan klorofil, dan kandungan gula daun bendera. Karakter sudut tiga daun bagian atas dan luas daunbendera berkorelasi negatif dengan hasil. Kandungan klorofil dan gula daun bendera tahap berbunga dan pengisian bijiberkorelasi positif dengan hasil