99 research outputs found

    Modulus Kekakuan Campuran Beraspal Yang Mengandung Butiran Ban Bekas Sebagai Agregat Pengganti Sebagian

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    . During last two decade method of flexible pavement design developed based on analytical method, by which the use of this method stiffness is strongly required modulus of pavement material. The main research objective described in this thesis is to predict and compare stiffness modulus of bituminous mixtures containing scrap rubber tire as partially aggregate replacement with the conventional bituminous mixtures. A Hot Rolled Asphalt (HRA) type C (BS 594.1992) was selected for investigation and the influences of scrap rubber tire as partially aggregate replacement in the mixture were investigated and the optimum bitumen content was determined

    Pengaruh Warna Perangkap Feromon terhadap Hasil Tangkapan Imago Oryctes Rhinoceros di Perkebunan Kelapa Sawit

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    The effectiveness of a synthetic-pheromone trap with active ingredient of ethyl-4-methyloctanoate in catching adults of Oryctes rhinoceros was believed to be influenced by the trap color. A RCBD trial with single factor and three block replicates was conducted during September to October 2008 at Oil-Palm-Trial Station at PTPN III, Labuhan Batu District, North-Sumatera Province. The single factor was trap color i.e. orange, green, white, blue, red, yellow, and pink. Results showed that total numbers and sex ratios of collected O. rhinoceros adults were not significantly influenced by the trap color. The total numbers of collected O. rhinoceros adult during 30 days on color of orange, green, white, blue, red, yellow, and pink were 136, 177, 126, 155, 129, 114, and 113 individuals with sex ratios β™‚/♀ 0.47, 0.52, 0.62, 0.50, 0.60, 0.49, and 0.54, respectively. The synthetic pheromone significantly attracted more O. rhinoceros female (65%) rather than the male one (35%). Keefektifan perangkap feromon sintetik berbahan aktif ethyl-4-methyloctanoate dalam menangkap imago Oryctes rhinoceros diyakini dipengaruhi oleh warna perangkap tersebut. Percobaan RCBD faktor tunggal dengan tiga blok ulangan dilakukan pada bulan September sampai dengan Oktober 2008 di kebun penelitian kelapa sawit PTPN III, Kabupaten Labuhan Batu, Provinsi Sumatera Utara. Faktor tunggal tersebut yakni warna perangkap meliputi oranye, hijau, putih, biru, merah, kuning, dan pink. Hasil penelitian menunjukkan bahwa warna perangkap tidak berpengaruh signifikan terhadap hasil tangkapan dan sex ratio imago O. rhinoceros. Total imago O. rhinoceros yang tertangkap selama 30 hari pada warna oranye, hijau, putih, biru, merah, kuning dan pink sebanyak 136, 177, 126, 155, 129, 114 dan 113 dengan sex ratio β™‚/♀ 0,47; 0,52; 0,62; 0,50; 0,60; 0,49 dan 0,54. Feromon sintetik secara signifikan lebih banyak menarik imago betina (65%) daripada yang jantan (35%)

    Penerapan Problem Based Learning untuk Mengoptimalkan Keterampilan Pemecahan Masalah pada Pelajaran Ekonomi di SMA

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    The purpose of this research is to know how the problem based learning method in optimizing the problem solves ability in Economic subject for social ten grade students at SMA Negeri 4 Pontianak. The method used is experiment method which is pretending experiment (Quasy Experiment). X IPS 1 and X IPS 2 students are the resources of this research that is consist of 77 students in academic year 2015/2016. From the data analysis shows the average of post-test scores in experiment class is 79,56 and the average post-test scores in controlling class is 74,94. There is a positive differences and significance between the result of economic learning with problem based learning method and conventional method which is the scores of experiment class are better than the scores in controlling class for X grade students at SMA Negeri 4 Pontianak. Meanwhile the effect size is in medium level, 0,64

    Evaluation B Sandstone Layer of Bekasap Formation in Tri Field to Determine Infill Well

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    B Sandstone layer of Bekasap Formation is located in Central Sumatra Basin. The well in this fieldtend to decrease of the production rate, and therefore effort should be made to raise the productionrate. One effort that can be done is to infill wells. This study aims to determine the value of propertiesof reservoir B sandstone with formation evaluation methods, so it can be a material consideration indetermining the location of infill wells. B Sandstone formation evaluation result Vsh in range of 9-29%,porosity of 22-27%, and watersaturation of 19-60%, with two infill wells proposed

    Analisis Ketelitian Pengamatan GPS Menggunakan Single Frekuensi Dan Dual Frekuensi Untuk Kerangka Kontrol Horizontal

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    Horizontal Control is a point that used as reference in the form of coordinate that useful for measuring and mapping in the field. GPS Survey is one of the methods to obtain the coordinate control point. It can seize the information that sent by the space satellite to the observing receiver in the Earth. There are several types of GPS receiver, one of them is based on the signal that can be acquired, that is Single Frequency and Dual Frequency Receiver. How to acquire the L1 and L2 carrier wave is different from single and dual frequency receiver. The difference can affect the data quality and the result of observation. Based on that problem, so this study measured in the control point using Single Frequency GPS during Β± 8 hours observation and Dual Frequency GPS during Β± 4 hours observation. In GPS data processing, various bundle point baseline will be tied to CORS (Continously Operating Reference Stations) UDIP, CSEM, CGML, and BAKO which will be processed using Topcon Tools and GAMIT/GLOBK Software. The value of the difference between the measurement results of GPS coordinates Single and Dual Frequency with baseline length variations tied to the CORS UDIP point has a value range of 0.003 m – 0.030 m ; CORS CSEM in the value range of 0.008 m - 0.070 m ; CORS CMGL the value range 0.030 m – 0.400 m and CORS BAKO the value range 0.100 m – 0.700 m . Accuracy Single Frequency GPS observations and Dual Frequency at baseline distance fastening point < 10 Km such as CORS UDIP and CSEM has the same relative precision. But at a distance of baseline > 50 Km has different result.

    Government Policies and Economic Analysis of the Livestock Commodity System in Indonesia

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    IndonesianPenelitian ini merupakan suatu USAha untuk meneliti keunggulan komparatif dan tingkat perlindungan/beban ekonomi untuk beberapa komoditas bahan baku pakan dan peternakan. Analisis keunggulan komparatif dilakukan dengan mempergunakan konsep rasio sumberdaya domestik, sedang tingkat perlindungan/beban ekonomi diukur dengan tingkat perlindungan nominal, tingkat perlindungan efektif dan subsidi implisit. Hasil penelitian menunjukkan bahwa produksi jagung di Indonesia lebih menguntungkan apabila dipakai untuk memenuhi kebutuhan domestik. Produksi kacang kedele di Jawa Barat ternyata tidak efisien. Kacang kedele mempunyai keunggulan komparatif apabila dihasilkan di Jawa Tengah dan di luar Jawa. Ubikayu dan beras mempunyai keunggulan komparatif yang tinggi di seluruh Indonesia. Produksi susu sangat tidak ekonomis. Sedangkan produksi daging sapi, babi dan ayam ras mempunyai keunggulan komparatif yang tinggi. Produksi telur lebih menguntungkan untuk konsumsi dalam negeri. Produksi telur mempunyai daya saing ekspor jika dihasilkan di Lampung dan Bogor. Struktur perlindungan komoditas secara umum tidak konsisten dengan efisiensi produksi komoditas. Insentif ekonomi cenderung bias untuk petani di Pulau Jawa.EnglishThis study is an investigation on comparative advantage and economic incentives of some major feed-stuffs and livestock products. The comparative advantage is analyzed using the domestic resource cost ratio criterion, whereas, economic incentive is measured using the nominal and effective protection rates, and implicit subsidy. The study shows that the corn production in Indonesia would be more beneficial economically if used domestically. The soybean production in West Java is not economical. The soybean only has comparative advantage if produced in Central Java and the islands outside Java. Cassava and rice have comparative advantage wherever they are produced. The dairy farming is highly uneconomical. Whereas beef, pork, and broiler productions are highly competitive, even for exportation. The egg production is more beneficial for domestic consumption. The egg production is competitive for exportation if produced in Lampung and Bogor. The commodities protection structures are generally in consistent with their economic efficiency configuration. The economic incentives are generally biased toward Java

    Analisis Pengaruh Pergerakan Kendaraan Memutar Arah Terhadap Tundaan Dan Antrian Di Jalan Profesor Soedarto, Sh. Semarang

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    The Problems Of Transportation that problem occur all this time was traffic jams. One of the traffic jams have been occur at Profesor Soedarto, SH Street which was caused by the movement of the vehicle turning direcyion and volume and traffic in the street. The movement of the vehicle turning direction was causing delays and queues on the roads. At this study, the analisis was done by using the referance based on the rules of Indonesian Highway Capacity Manual and descriptive statistic analysis. The purpose of this study was to identify the level of service roads, identify the characteristics of delay and queue that occur due to variations in the duration of the vehicle turning direction at the and of the median, as well as provide an alternative solution. The method used to improve services an the area of roads is traffic management. The result of this study showed that the level of the service road can\u27t accomodate the number of vehicles passing on the roads. It can be seen from the degree of saturation (DS) which was more than one. Average delay stopped in the road to reach 10.19 seconds and result in long queues of 22 meters.. Best alternative solution of this study is the road widening
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