8 research outputs found

    Jarak Parit Irigasi Jalur Untuk Tanaman Palawija Daerah Irigasi Banjarcahyana, Banjarnegara

    Full text link
    At furrow irrigation, crops plant will use the root absorption capacity to keep taking water from trench, but, depth, spreading, and the root absorption capacity of furrow irrigation is limited, and depand crops species, age of crops, and soil caracteristic. Thus, the depth and trench distance planning is very important to determine productivity of crops plant. This research aimed to know effectivity of depth and trench distance at furrow i rrigation of Banj arcahyana irrigation system using water balance model. The result of research showed that trench distance has variative and depand on water level of trench and crops species. Melon needs more short trench distance than the other crops plant, where as the maximum requirement of water will occur on August and September

    Septictank Peresapan Sistem Kanal (Persikan) Sebagai Teknologi Alternatif Pengendalian Pencemaran Koliform Tinja Pada Pemukiman Padat

    Get PDF
    The main problem of domestic wastewater treatment in term of bacterial removal using conventional septictank in many developed towns is lack of land to purify domestic sewage into 10 m minimum safety distance according to WHO regulation. It is necessary to develop new treatment system to ensure bacterial will be removed 100 percent less than 10 m distance. Channel System Filter Septictank (CSF Septictank) is designed to solve the problem above. CSF Septictank is a common septictank equipped with filter tank separated by several partition walls to shape channels. CSF will consist of three parts: initial storage tank, filter tank and final storage tank. The Filter tank is fully filled with fine sand as filter medium. Wastewater will flows from the initial storage tank then pass the filter tank and entering the final storage tank as product of CSF Septictank treatment. Dimensions of the filter tank are analyzed using Huisman formula. Performance of CSF Septictank is measured by comparing water quality between water in the initial storage tank and the final storage tank. Water quality test result shows significance effect in bacterial removal. The other parameters also show increasing of water quality. By using CSF Septictank, bacterial contents could be removed 99,15%, BOD5 contents decreases 27,24%, COD contents decreases 29,01% meanwhile DO contents increases 27,78

    Pemanfaatan Sedimen Waduk Mrica Untuk Bahan Baku Bata Merah

    Get PDF
    Volume of water storage reservoir conditions Mrica from year to year decreases due to sedimentation. Efforts to reduce sediment in the reservoir has been done by way of flushing (flushing) periodically through the drawdown culvert (DDC), where the outcome is less effective and causes a lot of losses. This research was conducted in order to exploit the reservoir sediments Mrica for raw materials of red brick as an alternative effort to reduce sediment in the reservoir, as well as empowerment of communities around the reservoirs. Methods of research carried out by making a brick specimens made from sediments that were collected at the upstream, middle and downstream of the reservoir storage area. Laboratory tests conducted to determine the physical characteristics of sediment and the characteristics of the bricks produced. The results showed that: (1) Sediment basin headwaters Mrica coarse-textured sand with a sand content of 53%, the middle area is a sand-textured sand content of 62%, and the downstream region of 69% silt-textured with fine sand content of 31% , (2) Sediment that can be molded into bricks is a sedimentary rock containing 40% sand, with the color after the fire is reddish brown and smell of the less savory, (3) Depreciation is the largest dimension of the brick after the fire occurred on the bricks that were made of sediment downstream areas, ie an average of 21%, and (4) The compressive strength of bricks produced very little that is equal to 0.5% of the minimum standards required by the SNI 15-2094-2000

    Pemanfaatan Pemotongan Ban Bekas Untuk Campuran Beton Serat Perkerasan Kaku

    Get PDF
    Basically, construction of road pavement has 2 (two) types, are rigid pavement and flexible pavement. Rigid pavement has many advantages: the design is simple, the maintenance is easy and it is suitable for heavy load traffic as well as for sub grade with low CBR value However, the main disadvantage of rigid pavement is its inflexibility because the flexural strength of concrete is low. To increase the flexibility of concrete, adding elastic material (waste tire) into concrete mixture is needed. This is very possible, because waste tire has high modulus of elasticity value and low density. This research is conducted to find the influence of waste tire fiber addition towards the increase of flexural strength and compressive strength of rigid pavement. This research uses tire shreds 4 mm x 4 mm x 60 in mm size which are mixed randomly into various concentrations. Concrete mechanic behaviors, flexural strength and compressive strength, are measured by testing cylinder and beam concrete specimens. The research results show that the addition of waste tire fiber can increase flexural strength of concrete up to 20.84% and compressive strength of concrete up to 4.73% higher than normal concrete when the waste tire fiber content is 0.75%

    Persinggungan Kepemimpinan Transformasional dengan Kepemimpinan Visioner dan Situasional

    Full text link
    Kepemimpinan dalam sebuah organisasi memegang peranan yang sangat penting, sebab sukses tidaknya suatu organisasi untuk mencapai tujuan yang telah ditetapkan sangat tergantung pada kemampuan pemimpinnya untuk menumbuhkan iklim kerja sama dengan mudah dan dapat menggerakan sumber-sumber daya yang ada sehingga dapat berjalan secara efektif dan efisien. Berdasarkan kajian pustaka dengan mengumpulkan dan menganalisis literatur-literatur yang relevan, dapat disimpulkan pertama, Kepemimpinan transformasional adalah kepemimpinan yang mencerminkan ikhtiar Perubahan yang terus menerus dalam upaya mencapai tujuan organisasi yang telah ditetapkan dengan menggerakkan semua potensi sumber daya  yang ada; kedua, Kepemimpinan visioner adalah kepemimpinan yang mencerminkan masa depan, pemimpinnya berfikir jauh ke depan melampaui batas waktu saat dia berada. Dia mampu menerawang masa depan organisasi yang dipimpinnya dan kemudian mewujudkan dalam visi-visinya, ketiga, Kepemimpinan situasional adalah kepemimpinan pragmatis. Yaitu kepemimpinan yang menyesuaikan kepemimpinannya dengan situasi dan kondisi lingkungan kepemimpinannya, baik dari segi personalia bawahan maupun tugas-tugas keorganisasian dalam mencapai tujuan organisassi; keempat, Persinggungan kepemimpinan transformasional, visioner, dan situasional adalah  sama-sama mengutamakan tercapainya tujuan organisasi dan terselesaikannya pekerjaan dan kesuksesan bersama dari bawahannya, kepemimpinannya diterima oleh semua bawahan dan adanya pembagian pekerjaan yang jelas antar individu

    Pengembangan Learning Card untuk Meningkatkan Kerja Sama Tim dan Pengetahuan Mahasiswa: A Literature Review

    Full text link
      The use of pictorial Learning Cards aims to make it easier for students to provide associations with concepts and materials so that the images that students get can generate creative ideas. The pictorial kick card is expected to improve students' spatial and visual abilities. The purpose of this Literature Review is to review articles that examine Learning Card Development towards Improving Student Teamwork and Knowledge. The data used comes from journals that contain the concepts under study. The data collection process was carried out by filtering from 17,071 literary sources to 7 literatures based on the criteria determined by the author of each journal taken. The criteria referred to include the year the literature sources were taken from 2016 to 2019, the suitability of writing keywords, the relationship between the results of writing and discussion. Strategies in collecting journals for various literatures using accredited journal sites such as Google Scholar, Science Direct and BMC Medical Education. An effective way of writing for journal settings is by entering keywords according to the writing title such as "Learning Card AND Teamwork AND Knowledge. On the Learning card is a card that contains keywords in learning that are used by students in preparing solutions, concepts and problem solving both sequentially and systematically
    corecore