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The Solar Power Plant Off-Grid 1 kWp at STT-PLN is one of the power plants built at STT-PLN to support renewable energy research, especially solar power generation. Since the solar power plant Off-Grid 1 kWp in STT-PLN has not yet known the optimum potential of electrical energy, the final yield (YF), the performance ratio (PR), and the efficiency of the system which is the parameters of a plant's performance Solar power. It is therefore necessary to analyze the performance of the solar power plant Off-Grid 1 kWp in STT-PLN, in order to know the operating system and the constraints that occur in the solar power plant Off-Grid 1 kWp in STT-PLN. To know the working parameters of Off-Grid 1 kWp in STT-PLN then do the research before and after maintenance of solar powerplant. Where final yield (YF), performance ratio (PR) before maintenance is 1.71343 Wh / Wp.day; 51.78%. While after maintenance of 3.10121 Wh / Wp.day; And 79.29%. From this research also obtained the efficiency of Off-Grid 1 kWp solar power system in STTPLN as a whole by 80,40%.

One way to optimize the flow of energy on a distribution channel is to reconfigure the network. This research aim to get optimal distribution system at PT.PLN Area Banjarmasin Penyulang BJM02, MTL04 and MTL10. The MTL10 repeater that will be recovered by reconfiguring the network to divide the load on the nearest repeater is the BJM02 and MTL04 feeders. This study uses 3 scenarios with regard to the state of the existing network to obtain a minimum power loss. In order to obtain a good conclusion then the analysis obtained that before the reconfiguration penyulang BJM02, MTL04 and MTL10 experienced energy losses 521,286 W. Resolving the problem then the network reconfiguration can be done on the BJM02 Repeater will divide the load of KST02 and the load of the earth in the circumference basirih earth in the feeder MTL04 to the MTL10 feeder. In configuring the network the thing that can be done is to open the KST02 circuit breaker at the KS.Tubun relay substance and close the disconneting switch (BJM02 Repeater) so that it connects with the MTL04 repeater. The MTL04 repeater will cut the muzzle throughput cable and connect the cable to the earth's basirih circular housing so that the load until KST02 is connected. The results obtained after reconfiguration can minimize power losses of 20,418 W.

The demand for electricity will continues to increase each time, this is because of the number of PLN’s customers will continues too to grow each year. Therefore, this is directly proportional to growing the amount of electricity that have to be streamed. With the increasing of the number of PLN’s customers, the provider (PLN) have to increase the amount of electricity supply as well. In the era of globalization, the efficiency of electrical power has always been the main issued, both from the providers and the customers. Therefore, the realibility of distribution system of electrical power will been the main issued as well. The index that showing the reliability of the distribution system of electrical power is SAIDI (System Average Interruption Duration Index) and SAIFI (System Average Interuption Frequency Index). As small as the value of the indexes, both SAIDI and SAIFI is so the more reliable the system, which means the efficiency of the distribution system is good (high efficiency). In this research will be discussed about the analysis of SAIDI and SAIFI values of Cahaya feeder, as well as how to suppress the value of SAIDI and SAIFI. Realibilty index SAIDI and SAIFI on Cahaya Feeder in the year of 2017 is 2.277 hours/costumers/year dan 2.406 time/costumers/years. That is reliable based on SPLN 59:1985 standard. Cost loss in year of 2017 due to outage on the Cahaya Feeder is IDR 12,794,305

The depletion of petroleum reserves makes people always try to find alternative energy to meet their daily needs. Especially for fuel oil in vehicles whose price is increasing, making scientists to look for alternative energy as a vehicle. Electric motors are one of the alternatives currently being promoted to replace oil-fueled vehicles. There are many types and models of electric motors in the community. The research that will be done is to test the performance of electric motorcycle used by PLN Cengkareng Area for the activities of Quick Service Unit (ULC = Unit Layanan Cepat) and compared with conventional motorcycle fueled by premium oil

Distribution system is very important in the distribution of electric power to the load. Therefore, a good and efficient distribution system is needed. The underlying cause of poor electric power distribution system is the amount of voltage drop values in the existing system. In the electric power distribution, 20 kV medium-voltage and 380/220V low voltage networks are used. The distribution system of Gandum Feeder in Angke Substation uses medium-voltage network with Underground Cable channel. They are used because of the towering buildings and the dense population in the area. It is known that the longest the channel and the load current are, the greater the voltage drop. From the result of the voltage drop calculation of Feeder Gandum in Angke Substation, which uses manual calculation and ETAP 12.6.0 program, it showed a slight difference in the result. The result of the voltage drop obtained from manual calculation showed that the percentage value of voltage is 1,94%, while the result obtained from ETAP 12.6.0 program showed that the percentage value is 2,01% These results are still in the PLN standard, because it has not exceeded the specified standard that is -10% of its nominal voltage.

This research discusses the fulfillment of the electricity needs of remote communities that are closely related to electrification ratios. Electrification ratios in some isolated areas and scattered islands in Indonesia are still very low. To date, most of the electricity needs in Indonesia is still supplied by Diesel Power Electricity Generator (PLTD) which uses diesel as its fuel. Therefore, it is necessary the utilization of renewable energy as one step to fulfill the electrical energy needs. This research studies about the utilization of wind energy with PLTB by using low speed wind turbine to fulfill the electricity needs of remote communities and scattered islands in Indonesia. NT1000W is the latest technology of low speed wind turbine that can operate at wind speed of 1 m/d up to 60 m/d appropriate to the wind conditions in Indonesia. Testing conducted in west Sumatera particularly in Padang city and Kapo-Kapo Island provide a feasibility of PLTB NT1000W technically and financially.

Hydroelectric solar energy Photovoltaic/Solar in addition can be used to program the rural electricity, solar energy utilization opportunities such as street lighting lamps as well as for the survival of the industry and small and medium enterprises. At solar power plants is also still there needs to be some development in managementcharging, this needs to be done in order for the resulting damage to the quality of mecegah power, namely the irregular voltage too high and sometimes too low from the solar cells towards the battery. Solar power plant comprises a PV panel change sunlight into direct current (DC), charging circuits for charging the battery, the charger system served as the heart of electric power generation system of solar power, which the battery used for electric power storage. This study is develop an intelligent system software architecture for Solar Charger Controler and used to arrange direct current to disuply battery by solar energy and transmitted to the load-based fuzzy logic. This simulation is expected to be implemented in a tool that serves as a charging in excess of set flush from the solar panel to batterybased fuzzy. Solar Charger controler based Fuzzy logic can be applied automatically regulates battery charging battery charging and limit if the voltage at the battery with charging function and organize the liberation of current from the battery to the load. software used In this study is Matrix Laboratory (MATLAB) used to simulate fuzzy logic controller as a regulator of the output voltage of boost converter after the solar cells. And managed to simulate the control of the voltage and current that entered the battery, battery filling in the range of 95%.

Rejuvenation classroom is a reference to the Directorate of Primary School activity conducted on an ongoing basis. So the availability, truth and certainty of information from the renovation must show current conditions in order to meet the needs of the coaching process, accountability and financial audit, as well as in the management of data rejuvenation should be integrated in one unified database. Then it is necessary to build an application that is able to manage the process of rejuvenation consistently. In the design of the governance renewal application classrooms, use agile software development methodology with extreme approach to programming process to explain each activity in each phase of the design. Stages of design and implementation is limited to the aid management process module rejuvenation classroom consisting of the proposed input, input the data verification process, the process of filing the disbursement of funds, the process of managing the data returns, and the handling of school accountability reports. With the construction of this rejuvenation governance can help meet the needs of data and information quickly and accurately. So that the information presented can be used as one of the considerations in the process of planning, policy making, monitoring, evaluation and inspection.

Perguruan tinggi adalah satuan pendidikan penyelenggara pendidikan tinggi. Ujung tombak kegiatan pembelajaran di Perguruan Tinggi berada di Program Studi. Program studi harus mampu mengatur diri sendiri serta memberikan pelayanan prima. Dalam upaya meningkatkan efisiensi, efektivitas, transparansi dan akuntabilitas penyelenggaraan program studi maka perlu adanya Sistem Informasi Akademik. Salah satu komponen penting dalam kegiatan pembelajaran adalah Jadwal Perkuliahan. Jadwal Perkuliahan adalah daftar yang memuat atau berisi nama mata kuliah, dosen mata kuliah, waktu, ruang perkuliahan dan lain sebagainya. Jadwal Perkuliahan harus sudah tersedia sebelum kegiatan pelaksanaan perkuliahan dilaksanakan. Membangun Jadwal Perkuliahan untuk suatu program studi yang besar memang merupakan suatu pekerjaan yang kompleks, sehingga dalam pelaksanaannya sering terjadi tabrakan jam, ruang, dosen mempunyai jadwal yang sama untuk mata kuliah yang berbeda, mahasiswa mengikuti perkuliahan pada waktu yang sama pada mata kuliah yang berbeda dan lain sebagainya. Hal ini jika dilihat sepintas merupakan masalah yang ringan, namun jika dibiarkan akan sangat berpengaruh pada kegiatan akademik secara keseluruhan. Oleh karena itu, Jadwal Perkuliahan sebaiknya dimasukkan sebagai bagian dari program Sistem Informasi Akademik.

Semua pengemudi tentu akan merasa tenang apabila telah memiliki Surat Izin Mengemudi sebagai salah satu syarat mengendarai kendaraan bermotor. Dalam kenyataannya, masih ada masyarakat yang kesulitan mengerjakan ujian teori yang diselenggarakan oleh kepolisian. Diharapkan dengan aplikasi ini dapat dijadikan pembelajaran dan membantu menghadapi ujian teori, khusus untuk masyarakat yang ingin membuat Surat Izin Mengemudi. Aplikasi ini dibangun dengan menggunakan metode pengembangan perangkat lunak Waterfall dan menggunakan UML untuk dokumentasi, spesifikasi, dan pemodelan sistem. Dalam implementasinya, aplikasi ini dibuat dengan menggunakan PHP Framework (CodeIgniter) dan User Interface Framework (Bootstrap) serta menggunakan database MySQL untuk menyimpan data soal-soal latihan. Pengguna aplikasi ini dilengkapi dengan fitur koreksi, jika diaktifkan, pengguna dapat mengoreksi jawaban setiap soal yang ditampilkan.

Bepergian merupakan kebutuhan yang dilakukan oleh manusia sehari-hari. Banyaknya alat transportasi menyebabkan pilihan untuk bepergian menjadi lebih beragam. Akan tetapi, alat transportasi yang sering dipunyai oleh masyarakat perkotaan khususnya Kota Jakarta adalah kendaraan pribadi yaitu motor atau mobil. Banyaknya kendaraan pribadi menyebabkan pengendara harus merencanakan jadwal bepergian yang tepat sehingga perjalanan dapat lancar sesuai dengan rencana. Jadwal bepergian akan berfungsi jika penggunanya melaksanakan kegiatan dalam jadwal tersebut dan tidak jarang jadwal yang dibuat tidak terlaksana dengan baik, dimulai dari faktor pribadi, faktor lingkungan, sampai faktor kondisi di tempat tujuan. Penelitan dengan tahap mulai dari pengambilan data bepergian sangat dibutuhkan karena melihat di daerah ibukota yang kebanyakan memakai jalan raya untuk bepergian, sampai dari masalah tersebut di rancangnyaaplikasi sec-way berbasis android diciptakan untuk membuat jadwal bepergian secara praktis dengan fitur pengingat dan informasi kondisi kota tujuan berupa suhu cuaca hari ini dan daftar CCTV kota tujuan. Secara garis besar aplikasi sec-way dalam penyediaan daftar kota tujuan tersebut mencari data alamat CCTV yang tersedia di masing-masing kota tujuan. Pembuatan aplikasi android dengan bahasa pemrograman java ini mengambil data dari penyedia CCTV dan cuaca yang valid dan dari kombinasi dari masukan kota awal ke kota tujuan diolah dengan metode sequential search untuk menampilkan daftar CCTV ke kota tujuan aplikasi sebagai informasi yang efektif dalam membuat terlaksananya jadwal bepergian.

Learning media is one medium that can help students understand the subject matter. No file system in the course material on how to put the data in a table. The material is the use of hashing technique in the search for the relative address of the data. In applying the hash function to find the relative address is probable some data have the same hash function results. This causes a collision (collision) at the time of placement data. Collision (collision) can be addressed by using multiple strategies, among others, Resolution Linear (Linear Resolution), and Double Hashing Overflow. The design of this simulation was organized which begins with the concept, design, material collecting, and assembly. At the design stage is divided into four stages, namely stages of the application process flowchart design, design app menu hierarchy, the design of the main menu display and design process flow aplikasi.Aplikasi calculation aims to assist lecturers in teaching so that students can easily understand and comprehend the material on the hash function particularly the division remainder method to find the relative address.

The increasing the number of population and the diversity activities in sukabumi caused the general problems on infrastructure service such as waste transportation. During the process of data collection and monitoring of waste operational vehicles at the Department of Waste Management, Parks and Cemeteries (DP4) of Sukabumi can not be done optimally because of the existing information systems limitations. So the presence of the vehicle where it in the field cannot be observed directly. The lack of strict supervision in the use of this operational vehicles facility caused the misuse of vehicles in the works. This Research aimed to find the problems solutions by made an application for monitoring waste operational vehicles by utilizing GPS and GIS technology, so that the concerned parties especially DP4 of Sukabumi can monitor the movement of freight and make an appropriate decision if there are some problems that happen during the trip. The applications have been made to speed up the searching process of the vehicle operational position and to find out who operate these vehicles without directly supervision to the field, so that the misuse of vehicle operation can be reduced.

Penerimaan siswa tahun ajaran baru dapat mengalami peningkatan dan dapat juga mengalami penurunan. Hal tersebut merupakan suatu masalah yang dihadapi Madrasah Aliyah As-Syafi’iyah 02 dalam menentukan langkah-langkah strategi kedepannya sehingga diperlukan adanya prediksi atau peramalan untuk mengetahui perolehan jumlah siswa baru, agar semua kebijakan dan keputusan dalam menyusun perencanaan kedepan dapat terpenuhi dengan baik. Dalam penelitian ini dilakukan untuk mengindentifikasi dan memprediksi jumlah siswa baru, yaitu dengan satu teknik dalam Data Mining yang digunakan peneliti ini adalah teknik Time Series untuk memprediksi perolehan jumlah siswa baru pada tahun 2016/2017 di Madrasah Aliyah As-Syafi’iyah 02, dimana hasil prediksi tersebut dapat memberikan kemudahan kepada pihak Madrasah Aliyah As-Syafi’iyah 02 dalam menentukan langkah-langkah strategi dalam mengambil keputusan dan kebijakan pada tahun yang akan datang. Berdasarkan hasil penelitian yang telah dilakukan untuk prediksi jumlah penerimaan siswa baru. Salah satunya adalah teknik Time Series dimana teknik ini dapat mengetahui target penerimaan siswa baru yang mengalami tingkat akurasi prediksi error yang terbaik adalah menggunakan alpha 0,9 dengan hasil perhitungan MAPE yaitu mencapai 23,582, MAD yaitu mencapai 13,006 dan MSD yaitu mencapai 217,667 dengan tingkat akurasi diterima mencapai 95% sedangkan untuk tingkat tidak diterima mencapai 5%, maka hasil penerimaan siswa baru di tahun ajaran 2016/2017 adalah 79 siswa. Sehingga dapat membantu memberikan informasi berharga kepada Madrasah Aliyah As-Syafi’iyah 02 sebagai gambaran dasar pengambilan keputusan.

STT-PLN library has had a website before, but there is no catalog features whose books have not owned by the library STT-PLN. This research will discuss about how to design the development of perpusatakaan digital STT-PLN in the added features of e-catalogs. The application of research methods using User Centered Design (UCD). In this application development using UML (Unified Modeling Language) diagram for designing the research development of perpusatakaan digital STT-PLN which includes use case diagrams, class diagrams, activity diagrams, and sequence diagrams. Solving the problem of system design include database design, application menu hierarchy and application interface design. UML which has been designed and then translated into web-based programming language that is PHP and using MySQL as the database. Then the last application tested using the User Acceptance Test (UAT), the direct testing of applications by users of the application. Implementation of the development of perpusatakaan digital is obtained results of a dynamic web based applications that can help users in accessing library applications online through the Internet and to members can facilitate the conduct of order books online, as well as facilitate the administrator library to manage the application.

Masih belum optimal nya aplikasi pengolahan data kas dan penyajian informasi pada sebuah kementrian, sehingga sering terjadi kesalahan pencatatan dan perhitungan yang dilakukan oleh manusia (human eror), oleh karena itu dirancang sebuah aplikasi pencatatan data kas berbasis website untuk memberikan kemudahan bagi admin maupun karyawan dalam melakukan penginputan data kas, pembuatan laporan kas dan penyajian laporan kas tersebut. Aplikasi digunakan oleh user, dimana user tersebut adalah admin dan karyawan, aplikasi dimulai dengan user melakukan login terlebih dahulu. Kegiatan yang dapat dilakukan admin adalah penambahan data karyawan, jenis traksaksi, penambahan data jurnal, dan pencetakan laporan. Sedangkan karyawan dapat melakukan penambahan data jurnal serta pencetakan laporan. Dengan dibuatnya aplikasi transaksi data kas berbasis website dan online ini, maka dapat mempermudah admin dan karyawan mencatat transaksi dimanapun berada walaupun mereka tidak berada di kantor, kesalahan pencatatan dan perhitungan juga bisa diminimalisir dan ketersidaan laporan yang diperlukan terhadap data anggaran kas lebih cepat di dapat dan akurat

major at consumer service. Information system Growth and Information Technology will affect to competition that growing competitive, this condition goes into effect also in the world of education especially for college that managed by society (private sector), claim the party of organizer to develop and develop information system in helping actifity business, reach organization target and service for stake holder especially related to data, information, technology and application. This Development and information system development must in harmony with instruct organization strategy (enterprise), found such cases of information system management experiences of failure in achieving target (objective) this organization because utilization disagree with collegepurpose and direction (organization). Enterprise Architecture Planning (EAP) as method or frame of reference to develop an information architecture. EAP is an architecture planning methods that orientation at business need that consist of data architecture, application and technology and implementation planning from architecture that has been made to support business activity to attainment of organization mission. EAP explains data architecture, application and technology that required to support organization business. Much developments IS experience of failure because need development IS are made base certain need without planning beforehand. Politeknik Piksi Ganesha, as one of higher education organizer that managed by private sector have strong comitment for information system utilization to support its business activity until must plan architecture enterprise. Architecture enterprise that will be modeled at Politeknik Piksi Ganesha, consist of : Data Architecture, Application, Technology Architecture, Roadmap implementation plan..Architecture enterprise modeling relate to processes that already commonly use in business higher education management in Politeknik Piksi Ganesha Bandung, where as discussion scope is limited at area Academic, area Administrations and Finance, area HRD and General.

Tingginya kebutuhan akan listrik dalam kehidupan masyarakat sadar atau tanpa kita sadari kita sering mengalami masalah listrik padam yang diakibatkan kebakaran gardu, pohon tumbang, kebakaran rumah dan beberapa masalah yang dapat mengakibatkan gangguan jaringan distribusi listrik.. Oleh sebab itu dibutuhkan sebuah sistem untuk dapat secara cepat mengetahui gangguan-gangguan yang terjadi dilapangan dan sistem tersebut dapat memberikan petunjuk jalur alternatif yang secara cepat dapat dilalui dan mengetahui titik lokasi terjadi. Web merupakan aplikasi yang sangat populer dan dapat menjadi media yang dapat digunakan untuk menyediakan informasi secara cepat dimanapun lokasinya sedangkan google map merupakan sarana yang menjadi penunjuk untuk memberikan informasi jalur cepat yang dapat dilalui untuk mencapai titik lokasi gangguan jaringan listrik secara visual pada peta. penelitian ini dapat menghasilkan sebuah aplikasi web yang terintegrasi google map untuk dapat memberikan informasi secara rill time yang terhubung pada konsumen.

Meningkatnya penggunaan beban non-linier dalam instalasi kelistrikan mengakibatkan masalah distorsi harmonik dalam sistem kelistrikan industrial dan komersial.Beban non-linier yang banyak digunakan dalam operasi minyak dan gas bumi adalah variable speed drive (VSD) dan uninterruptible power supply (UPS). PT Medco E&P Indonesia memberdayakan Electrical Submersible Pump (ESP) sebagai metode produksi minyak bumi yang diterapkan di lapangan produksi Kaji Semoga. Instalasi ESP dilengkapi dengan VSD sebagai pendukung asut dan pengendali kecepatan motor penggerak ESP demi mencapai besaran produksi minyak bumi. Operasi VSD membangkitkan gangguan harmonik yang dapat mengganggu sistem daya listrik seperti panas berlebih dari peralatan listrik, kegagalan prematur pada peralatan berputar dan pembatas arus yang gagal kerja. Pada umumnya untuk mengendalikan masalah ini, harmonic filter dipasang untuk mengkompensasi distorsi harmonik. Instalasi harmonic filter berkontribusi pada biaya pemeliharan kehandalan sistem daya listrik di lapangan produksi Kaji Semoga. Makalah ini menjabarkan metode-metode alternatif untuk mengendalikan distorsi harmonik dalam sistem distribusi daya lsitrik termasuk pemasangan harmonic filter. Metode untuk mengendalikan distorsi harmoniktersebut termasuk penggunaan trafo phase-shifting. Metode lain untuk menanggulangi distorsi harmonik adalah merancang ukuran konduktor selain sebagai proteksi arus beban-lebih juga bisa menerima pengaruhharmonic pada arus beban. Metode-metode alternatif ini bisa mengurangi biaya dari usaha menghilangkan distorsi harmonik secara signifikan.

Nowadays application of new and renewable energy as power plan renewable energy resources as power plant resource more and more increased. High penetration of renewable energy into the grid will influence the quality and reliability of the electricity system, due to the intermittent characteristic of renewable energy resources. The smart grid or microgrid technology has the ability to deal with this intermittent characteristic especially while these renewable energy resources integrated to grid in large scale, so its can improve the reliability and efficiency of that grid. We plan to implementation of smart microgrid system at School High Tehnik of PLN as a pilot project. Before the pilot project design, the feasibility study must be conducted. In this feasibility study, the renewable energy resources and load characteristic at the site will be measure. Then the technical aspect of this feasibility study will be analyze.This paper explained the analysis of thus feasibility study.

Push-On switches or toggle switches and mechanical relays are mechanical contacts made of metal which, when supplied with electric current, will result in a spike of electrical sparks, called Bouncing Effects. Bounce effects are often a problem in digital circuits, especially in digital electronics circuits, because these Bounce Effects will cause the value of data or signals coming into the circuit inaccurate or indeterminate, when the mechanical switch is pressed as input data. This will undoubtedly lead to undesirable conditions and must be overcome with an electronic circuit called De-Bounce for the data or input signal to be more certain.

Electricity is an integral part of every human being and power transmission by wires is a necessityto fulfill the need of electricity. ‘What if we can come out of this tangled wire-theory?’- With this view, Nikola Tesla introduced the concept of wireless power transfer in early 20th century. Wireless Power Transfer (WPT) is not only reliable and efficient but it is also eco-friendly and cost effective. A lot of concepts for WPT are already discussed by researchers, scientists and inventors. In addition to the available works and principles, this paper explains the basic concept, design and implementation of wireless electricity with magnetic induction technique and determining its practical result carried out with the same.

The alarm device is very important in a vehicle, especially on four-wheeled vehicles. Alarm device installed to avoid in case of danger of theft or destruction of the car. So designed car alarm system that can send short message to car owner who use AT89S52 microcontroller. The hardware arrangement of the car alarm system uses the SMS-based AT89S52 microcontroller in this design, consisting of four main parts of the circuit, the minimum system circuit of microcontroller, power supply, serial communication, Input / Output. In SMS text sent from Wavecom M1306B modem and received by mobile (mobile phone) to SMS center or SMS Center flows in form of PDU (Protocol Data Unit). In the sms format is divided into several segments of data that each segment has a specific purpose. The segments are: SMS center number, destination number, bytes for the purpose of setting this SMS and most important is the SMS content that has been changed in the form of a PDU. To be able to send or upload SMS data to the modem and ordered the modem to send SMS data it required AT Command instructions.

Thermoelectrically technology is a technology of solid material that can be used as an alternative cooling technology besides cooling system that uses vapor compression that still uses freon. This study aims to determine the feasibility of using thermoelectrically cooling implementation in the indoor BTS (Base Transceiver Station). The use of this thermoelectrically Cooling is to maintain the ideal temperature of the battery by 25 degrees Celsius (250C) which is an ideal temperature. Research is done by testing thermoelectrically by mounting the cooling thermoelectrically in the existing battery cabinets installed in active condition. Ambient temperature measurement is done by using a measuring instrument that has been calibrated.

The final landfill is a place to hoard the garbage and the bin gets the last treatment. The final disposal site may be either deep or field-shaped. In recent years, dumped end landfills have finally been converted to a public open space. Final waste disposal site is one of the biggest sources of landfill gas emissions in Indonesia. In the anaerobic process, the organic material decomposes and the landfill gas is produced. This gas then converges and rises regardless of the atmosphere. This becomes dangerous because it can cause an explosion, but it can also cause photochemical smog.

Electricity Jababeka industrialarea is provided by PT Bekasi Power through 150 kV PLN's own transmission with Power Wheeling concept that is the joint utilization of transmission system which has a few definitions, for example, the utilization of transmission or distribution system to transmit electric power from existing entities and to different entities.Or sending electrical power from the seller to the buyer through a system claimed by third party. In the concept of wheeling, the fees charged for services provide and bear the lossesdue to the utilization of ipower transmission networks in this study will examine the concept of appropriate power wheeling for Applied in Jababeka industrial area

The purpose of Grounding system design is to ensure safety for personal and equipment, andto improve fault detection of protection system.All electrical equipment should be connected to the grounding system. A system ground refers tothe point in an electrical circuit that is connected to earth. This connection point is typically at theelectrical neutral.Grounding of electrical items must be performed inside the enclosure i.e. insulated copperconductor is going to be used for earthed loop.Grounding bar of equipment, cubicle, switchboard, dedicated inside terminal boxes, lightingfittings.Lightning protection, electrical and instrument equipment should be connected to the groundingsystem separately. The objectives of lightning protection are to avoid catastrophic equipment damage and to preventpersonal injury. The energy of a lightning stroke can readily ignite flammable vapors or damageequipment.Methode of calculation used of the groundingsystem design of lightning protection is multiple vertical electrodes system.

The rapid development of the Internet requires a counterweight in maintaining connectivity and network stability. connectivity becomes one of the aspects that take priority in a network, and therefore the Internet connection on demand to always be stable and interference free, but not always a connection running smoothly and stable. Usually there are a variety of disorders within a network, hence the need for bakcup management of the network that are running so that if one impaired then there will be a backup. One that can be done is by using load balancing. Subyek taken in this study to focus on the implementation of the source network backup or backup Internet from the dependence of the internet service provider or ISP provider. Load balancing method using Equal Cost Multi-Path, research methods that used are library research, observation and interviews network of PT.Nipindo. As for the design begins with installing mikrotik here in after may be applied load balancing. Technical test carried out by using a ping test is performed to determine whether the connection is running well or not. The result of applying load balancing method shows ECMP load balancing goes well. Load balancing does not change the physical structure of an existing network, so it can produce optimal connections when an increase in traffic due to the balanced distribution of bandwidth.

Each agency has its own characteristics and given authority in managing its finances. Foundation education and welfare PT.PLN (Persero) (YPK-PLN) has 14 affiliated companies. Each affiliate is required to report their financial periodically to YPK-PLN. The diversity of business fields and different locations makes YPK-PLN difficult to obtain financial position data on each affiliate. This financial report becomes one of the YPK-PLN reference to see the state of its subsidiary. The financial statements should be reported quarterly in a year. These financial statements include the balance sheet financial statements, labels and flows. The purpose of this study is to design and build a system that can unify all the financial statements of each affiliate and then calculated the results of its performance. The result of its performance is calculated dimasksud Operating Ratio, Average Collection Period, Return on Equity, Net Profit Margin, Current Ratio and Debt to Equity Ratio. This research was conducted with waterfall methodology to develop the software. To design the system to be built will use UML 2.0. In the development of the software will be used php language with codeigniter framework. The database used is SQL DBMS MariaDB with Apache 2 as its web server. The results also proved that the Performance Results of the affiliate financial ratios have an important role for YPK-PLN in determining whether to invest shares in the company concerned is the right decision.

The research purpose is implementing the information communication technology (ICT) as a tool to describe purchase service process to make easy the information communication technology usage and also supporting customer relationship management (CRM). The research is also describing how to improve the advantage of efficiency, effectives, performance as well as company productivity improvement to obtained supporting customer relationship management (CRM). This research uses descriptive analytical by presenting a summary of interviews, using observation, and discuss with expert respondent using focus group discussion, literature review as well as using flowchart diagram, entity relationship diagram (ERD) and data flow diagram (DFD). The information communication technology (ICT) usage in this research by using short messages service (SMS) and design tools application in the form of a flowchart diagram, entity relationship diagram (ERD) and data flow diagram (DFD) approach used in this research were able to solve the purchase service problem and provide the best information result and computerized.

Garbage is one of important issues in the life community, particularly in Indonesia. The volume of garbage heap is increasing along with the increase of public consumption every day, which affects garbage accumulation especially in GEMPEL - BEHI TPST. Therefore, an alternative waste treatment is needed to reduce the volume of waste to be transported to the landfill by utilizing organic waste with anaerobic-digester technology. This condition encourages researchers to design biodigester type fixed dome to optimize waste processing. Based on the research that has been done, Designed anaerobic-digester that had been made can be known the total volume of reactor used is 196,8 m3 to process waste 32,8m3/day. From utilization the anaerobic-digester technology, it provides benefits for the community such as income from the sale of economic value of waste are Rp. 58.795.750,- per month and value of expenses are Rp 52.320.000,- per month with pay back period are 6 month. So with the design, it occurs environmental conservation efforts as one step to improve human welfare and realize the sustainability of natural resources.

Competition increasingly competitive business trigger Muliadana company to be more innovative in improving the quality of the company. One technique used by management companies in improving the quality of human resources is to conduct employee performance appraisal. To the authors try to establish a scoring system using the Graphic Rating Scale (GRS), which is a methodology for assessing the scale of the graph by comparing the individual performance against an absolute standard. The purpose of this valuation method is to minimize the less objective assessment and can determine the development of the employee's performance over several periods. The results of the performance appraisal company can provide feedback to the employees so they can decide the steps taken in making decisions such as: promotion, promotion or class, mutation, degradation as well as training for employees in need.

Premature birth, defined as delivery in pregnant women with gestation age 20 - 36 weeks. Research related to preterm birth has been done by the researchers by using the neural network method. However such research only showcase about the results of the sensitivity and specificity. The results of research using the method of neural network in predicting preterm birth has a value of the resulting accuracy is still less accurate and only limited to presenting the results of the sensitivity and specificity. In this study produced a model of the neural network algorithm and model of neural network algorithm based on particle swarm optimization to get the architecture in predicting preterm birth and gives a more accurate value for accuracy on a data set of RSUPN Cipto Mangunkusumo , RS Sumber Waras and in its entirety. After you are done testing with two models of neural network algorithms and neural network algorithm based on particle swarm optimization and the results obtained are the neural network algorithm generates value accuracy of 94,60%, 96,40%, 91,33%, and AUC values of 0,973, 0,982, 0,953, however, after the addition of the neural network algorithm based on particle swarm optimization value accuracy of 95,20%, 96,80%, 92,40% and AUC values of 0,979 , 0,987, 0,965. So both of these methods has the distinction of accuracy which amounted to 0.60%, 0.40%, 1.07% and AUC value difference of 0.006, 0.005, 0.012.

The best or optimation of mobile television broadcast will be got some ways, one of this is the antenna’s control of mobile’s te;evision. The additionals require a fairly thorough calculation with look teposition and the distance fron the transmitter. Amplifier of the antenna is called the booster. That is needed voltage enlarge, the input voltage is 12 volt. In this research use the eksternal booster. Transmit power and receive power od antenna inversely proportional distance. With use antenna and booster DXXN 1508 strengening booster is 40-46 x. If in this calculate we use 45 x , input voltage 12 V, the output voltage will be very lage.

The design of basic physics aims to assist students in understanding the lessons of physics for students in particular and the general public .. This design contains basic formulas of physics, exercise problems and cases that run with the Android operating system designed specifically for smartphones and tablets, and can be done in offline, so users are not required to connect to the internet to use it. Rapid Application Design method is very well used to solve the problem of misunderstanding between users and analysts arising from the user is unable to clearly define their needs. And the analysis using Unified Modeling Language method used to perform specifications, visualization, construction, and documentation artifact a software system

With the increasing public awareness of the human relations system with the surrounding environment, communities are beginning to shift towards better sources and methods to help improve the environment. One of the methods that began to be utilized is the application of green roof construction. There are many benefits for installing a green roof whether it is in a home or office building. The study was conducted on applicable green roof construction, the benefits of installing a green roof and a process run for a green roof installation with a construction approach applicable to urban housing buildings in Jakarta and on cost analysis on material requirements and installation. And in its efforts to reduce rainwater runoff. Green roof as one in the management of rainwater in urban areas. From the result of the research resulted the calculation on survey location percentage of runoff decrease 26%. While in the test object / mock-up there is a reduction of 95% runoff volume. It can be concluded that the use of a green roof / roof garden can reduce the runoff volume produced by rainwater, resulting in reduced surface runoff automatically reduced. This will also reduce the drainage-drainage burden of the city in accommodating water. The Roof Garden plays a role in the management of rainwater management to cope with puddles up to the danger of flooding

One of the assessment criteria for the accreditation of the study program is the assessment of the duration of the study of students who graduated on time. not a few students who pursue the study period exceeds the established standard of graduation. So it is important for the study program to know which students have the possibility of passing is not timely. For that it is necessary to predict the length of student study. One way to predict the length of a student's study is to build a classification model. This study aims to build a long prediction model of student study using Decision Tree with NBTree algorithm. The data used are academic value data and student academic leave data. The result obtained is a classification model of Naïve Bayes Decision Tree with 73.45% accuracy.

This research on the utilization of coal-ash that is wasted at the coal-fired power plant is conducted with the intention to become an effort to alleviate environmental impact of the power plant. The by-production of such waste in coal-fired power plants is a direct consequence of the rising demand on electricity as one of human basic needs in modern lifestyle. Endeavor to save the environment is a manifestation of the good culture of environmental awareness; indeed, human being shall act responsibly for the soundness of the environment. Some sufficient amounts in different composition of coal bottom-ash from a coal-fired power plant mixed with another medium were implemented toward a variety of plants, i.e. a certain type of Orchid (“Moon” Orchid or Phalaenopsis amabilis), Tomato (Solanum lycopersicum) , and Sansevieria. A series of mixed medium with different composition (each particular composition is in triplicate), is prepared consisting of 0%, 25%, 50%. 75%, and 100% of Bottom Ash, consecutively. The observed result shows that Bottom Ash is not suitable for the orchid plant as its medium. This more probably results from the fact that the pH of Bottom Ash tends to be more alkaline, while the Orchid plant would only be growing optimally in acidic - normal condition. In the case of Tomato plant, Bottom Ash is usable to be the plant growing medium; in fact an increase of Bottom Ash percentage expedites the plant growth from its seed to become small plants. Another plant under observation is Sansivieria. Bottom Ash turns out to be suitable as a medium for this plant. In fact, this type of plant remains growing steadily and normally in media with variable percentage of Bottom Ash, all along the research procedure. Bottom Ash contains some nutrient that are beneficial to plants, such as Boron (B), Phosphorus (P) and among other elements are Cu, Zn, Mn, Mo dan Se. Most of coal-ashes tend to be alkaline with pH ranging from 8 to12.

Cikapundung River Restoration lies in a river border with a steep sloping slope and waves to the west - east which is formed from the flow of the river cikapundung. Generally, the soil structure of the Cikapundung River Basin slope is residual ground, corrosion stone and colluvial deposition,which caused vulnerable to landslides. It was also separate and able to keep water. Therefore, shear strength is weak, especially if water is saturated. In this case landslides always occur when it rains. In general, this is due to high rainfall with a certain duration, thus causing the stability of the slope is disrupted. Another cause is the non-functioning drainage system because it is covered by some material from the slopes submitted by water. Therefore, the water rubs the slope.

Underground cable distribution channels to be excellent especially in big cities like Jakarta. This is because the underground cable distribution is a solution to the difficulty of land acquisition that will be used for top cable networks. Nevertheless, there is an important factor to be considered in implementing the underground cable distribution channel that is the condition of the soil through which the cable. This study aims to determine the dimensions of the cable house was safe from the soil instability. The soil instability are the stability of bolsters and the shear stability and take into account the carrying capacity of the foundation used. The data used as a reference in the analysis using research data that has been done previously. In stability analysis and foundation bearing capacity used Geo5 software demo version aid. The results obtained from the analysis, with variations on the dimensions of the cable house used are 2 mx 2 m, 2.5 mx 2.5 m and 3 mx 3 m, it is seen that the greater the dimensions used then the security number of stability bolsters, soil shear stability and the carrying capacity of the foundation decreases. This is due to the greater the dimensions of the cable house used, the greater the burden borne by the soil.

River flow discharge is one of the most important hydrological parameters for the management of water resources because river flow data is required for future pusposes assuming the process characteristics are unchanged. Komering River is one of the largest rivers in the Province South Sumatra which is quite a big role in the lives of people who are in the sub Komering watershed. The magnitude of the flood discharge and dependable flow Komering River is very important to to be taken into account, by analyzing the flood discharge can be done flood management, while by analyzing the dependable flow can be done planning river water utilization. The research based on the collection of secondary data obtained from Departemen Pekerjaan Umum Sumatera Selatan and Balai Besar Wilayah Sungai Sumatera VIII, discharge data from 2000 to 2010 and maps needed to know the study area. All the data are correlated where the analysis is intended to determine the statistics of flood discharge and dependable flow Komering River. From the results of analyzes obtained that the distribution can be used to predict flooding in the river discharge is Gumbel distribution with estimate the flood discharge for 2 years return period 1007.57 m³/dt, for 5 years return period 1459.79 m³/dt, for 10 years return period 1759.20 m³/dt, for 25 years return peiod 2137.50 m³/dt, for 50 years return period 2418.15 m³/dt, and for 100 years return period 2696.73 m³/dt. Based on analysis of dependable flow, Month Basic Plan Method, thatLog Pearson III distribution can be used to analyze River Komering dependable flow. The highest dependable flow of is 226.20 m³/dt and the lowest dependable flow is 62.08 m³/dt.

This research was motivated by the use of sea sand to the availability of large amounts in Bengkulu city. The purpose of this study was to determine the quality of sea sand physically and to compare the compressive strength of concrete with the dunes and river sand. Sea Sand which were used in this study wereSelolongSea Sand, LakokSea Sand and Air Padang Sea Sand. The specimens were the cubical size 15 cm x 15 cm x15 cm of 40 samples with 2 types of treatment namely salt water and fresh water treatment. The planning of concrete used 0,5fasand 60-100 mmslump, The testing was done at 28 days. The result of this study showed that for doing the inspection of sand quality physically, all the tests fulfilled the requirement setexcept in the inception of sieve analysis for Air Padang sea sand, which has a very fine grain. The highestincreased of concrete compressive strength was atLakok Sea Sand, which was 3.86% of the dunes, and 4.77% for the treatment of river sand for freshwater. For the treatment of Lakoksalt water on the dunes increased to 2.22% and on the river sand increased 3.74%. Air Padang Sea Sand has the biggest reduction the compressive strength of concrete, most notably in the treatment of fresh water on the dunes of 10.33% and 9.54% of the river sand. For salt water treatment, Air Padang Sea Sand had a greater reduction which was 14.61% of the dunes and 13, 33% of the river sand.

Transportation is a very important and strategic means to facilitate the movement in an effort to meet the needs of the community. Planning and construction of transportation facilities and infrastructure, greatly influence in determining the increase of economic growth in supporting the achievement of development targets. The real impact that occurs as a result of rapid economic growth, population growth, and changes in land use affects the performance of intersections and roads, especially the problem of congestion, delays, queues opportunities and other issues. Based on the result of calculation analysis which have been done by using Indonesian Highway Capacity Manual method (IHCM), capacity of intersection of Angkatan 66 Palembang on the condition of the morning peak was 3007 smp / hour at peak lunch was 2875 smp / hour and the afternoon peak is 2997 smp / hour. The high movement of vehicular traffic flow at the intersection of Angkatan 66 and the road R. Soekamto indicates that the level of service is not sufficient to meet traffic needs, this can be seen from the Lower level of service or performance (Level of Service / LOS) at the intersection Angkatan 66 and the road R. Soekamto C (0,7908) and D (0,889) are at the level where the current begins unstable operation speed relatively quick decline due to the obstacles that arise. So to overcome the problem of alternative road widening or construction of fly over (fly over) and traffic management in the form of traffic engineering management has to be implemented.

With improve the quality of concrete is by using the addition of admixture. By adding admixture Silica fume and superplasticizer is expected to improve concrete quality in concrete using fly ash and bottom ash. The main objective of this research is to know the value of concrete compressive strength, slump test value, fresh concrete temperature and setting time in concrete using fly ash and bottom ash by 0%, 5%, 10%, 15%, 20% and 25% by weight of cement, with variations of silica fume 0%, 2%, 4%, 6 %, 8%, 10% of the weight of cement that has been reduced by the weight of fly ash and bottom ash and added with superplasticizer of 2% of the water requirement. The planned concrete quality was 41.7 MPa at 28 days, with the sample tested at age 7, 14, 28 days. Based on the results of the highest concrete compressive strength test for fly ash concrete (fly ash) is found in FA mixture variation 10%, SP 4%, SF 2% that is equal to 56,16 MPa. And for mixed bottom ash the highest compressive strength on mixed variation of BA 5%, SF 2%, SP 2% is equal to 49,82 MPa. Fresh concrete temperature variation of FA mixture 5%, SF 2%, SP 2% and BA 5%, SF 2%, SP 2% rose one degree from normal concrete temperature. Setting time generated on mixed concrete FA 5%, SF 2%, SP 2% has the fastest initial time setting ie 251 minutes of all variations of concrete mix.

Pirometer akuistik adalah salah satu jenis alat ukur suhu yang non-intrusive dan andal untuk digunakan didaerah yang memiliki temperatur yang tinggi, korosif dan kotor dibandingkan denganalat ukur jenis contact measurement. Dalam tulisan ini akan dibandingkan hasil pengukuran temperatur di daerah furnace exit gas temperatur (FEGT) dengan menggunakan pirometer akuistik(PA) dan pirometer infrared (IR) di boiler unit # 4 PLTU Suralaya. Hasil komparasi menunjukkan bahwa perbedaan pengukuran temperatur dengan menggunakan PA adalah 56°C atau 5%

Boiler is a heat exchanger that serves to evaporate boiler feed water to produce dry steam to drive the turbines in order to produce electricity. The fuels used in this study are dry wastes such as paper, plastic, and wood. The process of designing this boiler is carried out so that the use of diesel to generate steam on energy conversion practicum/experiment in STT-PLN is no longer needed. Instead, they can use dry waste as fuel to produce steam which later will drive the turbines. The residue of burning waste process in the form of ashes is approximately 0.053% of the weight or volume of dry waste before burnt. The calculation conducted on this works is to determine the design of evaporator and economizer pipe. The calculation is also adjusted to the generated steam needed in order to spin the turbines. The pressure produced from this boiler design should be 2.9 bar and for the amount of steam was 21 kg / hour. As a result, the calculation of evaporator surface area is 8,83 m2, result simulation HTRI 8.95m2 with 88 pipes and 1500 mm for each pipe, while the heated surface area for economizer is 0,46 m2 result simulation HTRI 0,45 m2 with 18 pipes and 400 mm long for each pipe.

Increasing number of Indonesian population and unequal distribution of population with higher densities only on certain islands rather than outside the islands, appropriate development strategies are needed in providing need for electrical resilience for the population. Frequent interactions with fuel - powered engines such as diesel engines and human resource readiness probably are reasons for government choice in using diesel powered engines (very big and medium sized diesel engines) to provide electricity on small islands and remote islands. Availability of electrical energy will create a conducive investment climate and improve welfare of the population. Lombok West Nusa Tenggara is one of small islands in Indonesia. In the area, electricity need is generated by PLTD Ampenan. One of the Ampenan diesel engines in unit VII is New Sulzer 12 ZAV 40 S equipped with double turbocharger type VTR 354. To maintain its performance, overhauls done routinely. Overhaul is a procedure performed to restore engine performance to factory standard specification value and give second age with condition worn or defective components refer to reusable parts instructions according to factory standards. This research focuses on the state of the diesel engine as a prime mover of generator before and after its turbocharger overhaul. And also, things about turbocharger overhaul and its effect on the engine.

Tutorial method is a way of delivering learning materials that have been developed in the form of modules for students to learn independently. Students can consult about the problems and progress encountered periodically. Many limitations teacher, in choosing the right method of teaching cause lecturer difficult to realize the demands of the students in this teach. Acceleration we can see at universities around us, still very much a lecturer who uses teaching methods in a conventional way, such as lectures, notes, summarizes and etc. Research aims to determine the effectiveness of the use of the tutorial method of teaching in the department of mechanical engineering. This study uses research and development (Research and Development), the stage of preliminary studies carried out by applying a qualitative descriptive approach. The development phase is done by trial limited to the conventional model of teaching faculty by applying experimental methods (Single One Shot Case Study) After no improvement on the limited test then continued with a broader test of the experimental method in the form of groups (one group pretest-posttest). The latter is a tutorial teaching model validation methods eksprimen. The result of research shows that tutorial teaching methods more effective than the old teaching methods, both on the speed aspect of students' understanding of the lecture material, creativity, and student results.

Pure Plant Oil (PPO) such as Pure Coconut Oil (PCO) and Pure Palm Oil (PPaO) could be a solution for electricity problem in remote areas in Indonesia. PCO and PPaO can be used as a fuel for diesel engine to produce electricity. This paper will compare and analyze the performance and emissions of the diesel power plant fueled with diesel fuel, PCO, and PPaO. For performance parameter, brake specific fuel consumption and thermal efficiency of diesel engine by using PPaO and PCO are higher than the diesel fuel, but the brake specific energy consumption are lower than the diesel fuel. That means diesel engine will be more efficient and have lower operational cost by using PPaO and PCO. For the emission parameters, CO2, CO, and CH emissions from PPaO and PCO are higher compared to diesel fuel. That means PPO have higher carbon emission than just using conventional diesel fuel. But, there are highly significant difference of less NOX emissions by using PCO and PPaO compared to the diesel fuel. That means it will be better using PPO because diesel engine has lack of high NOX emissions. These differences of diesel engine performance and emissions by PPaO, PCO, and diesel fuel are caused by the fuel characteristic differences such as cetane number, calorific value, and viscosity.

The impact of environmental pollution is now beginning to perceive by all levels of humans and in the world such as global warming, until climate change has inspired the research on the utilization of waste coal combustion (Bottom Ash) power plant. This research uses Bottom Ash (BA) from PLTU (Electric Steam Power Plant) Suralaya, by choosing Selada (Lactuca sativa), Sawi (Ipomea Autica), and Kangkung (Brassica rapa var). Percentage BA used as planting media is 0%, 25%, 50%, 75%, and 100%. BA serves to accelerate the process of rupture and plant growth due to the availability of Ca, Mg, Na, K, N, P, S and Fe elements. Planting media for Lettuce plant species is 25%. The corresponding percentage of BA as planting media for Plant Sawi species is 25%, and 50%. While in the Kangkung plant BA percentage that is suitable for use as a planting media is 25%, 50%, and 75%. The apparent anomaly at this test are Kangkung percentage 75% and Lettuce50%, 75% stems become longer, and leaves become slightly even in 100% Bottom Ash percentage, Lettuce grows with smaller size/dwarf. The amount of nutrient excess need to be accurately measured through laboratory test first. With further testing it is hoped that the utilization of coal ash waste (Bottom Ash) becomes more real and effective as a growing media seen from risk and danger aspects.