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<![CDATA[SINKRONISASI CHAOS SIRKUIT LORENZ SERTA APLIKASINYA DALAM SISTEM KEAMANAN KOMUNIKASI ]]>
<![CDATA[Mada Sanjaya WS]]>;
<![CDATA[Siti Nurlaela]]>
<![CDATA[ JURNAL ISTEK Vol 5, No 1-2 (2011): ISTEK ]]>
Publisher : <![CDATA[JURNAL ISTEK ]]>
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<![CDATA[Lorenz circuit is an autonomos three-dimensional system and a simple nonlinear circuits that can generate chaotic dynamics including the presence of variations in phase diagrams and attractors. In this paper, has been built the circuit design and numerical simulation based on the basic circuit Lorenz. The result of numerical simulations and electronic circuits are used to show the accuracy of the theoretical design and implementation of the circuit are made. Matlab program and Multisim is used to simulate the numerical implementation of the Lorenz circuit and shows the presence of chaos. In this paper, we have developed an application of chaotic signal as a signal modulator that can be used for secure communication systems.]]>
<![CDATA[SIMULASI WIRELESS MESH NETWORK (WMN) UNTUK MENDUKUNG IMPLEMENTASI NEXT GENERATION NETWORK (NGN) ]]>
<![CDATA[Nanang Ismail]]>;
<![CDATA[Adam Faroqi]]>;
<![CDATA[Lia Kamelia]]>;
<![CDATA[Rina Mardiati]]>
<![CDATA[ JURNAL ISTEK Vol 5, No 1-2 (2011): ISTEK ]]>
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<![CDATA[Wireless LAN application has been widely used today. One of the wireless topology that cheap but reliable is mesh topology, otherwise known as wireless mesh network (WMN). To support the development of Next Generation Network (NGN), research about wireless mesh network is needed before it is implemented further. This paper represents the preliminary findings of research on the implementation of the WMN for rural areas, especially in areas that will connect between madrasah, majlis ta’lim, pesantren, and others. This paper contains a simulation scenario to determine how the characteristics of wireless mesh networks. This is also done to determine the End-to-End delay, Packet Drop and throughput that occur in the routing process. Simulations conducted in the laboratory using four indoor access point (IAP): 1 as a server, and 3 as a workstation. Routing protocol used in the experiments is OLSR (Optimized Link State Routing). Network monitoring using SNMP and operated on a Linux OS. The simulation results showed that the total bytes for the application packet bigger than packet routing. But the number of routing packets is larger than the application package. Trace routes results showed that the inter-hop in the configuration of the simulation WMN is connected properly.]]>
<![CDATA[PERANCANGAN APLIKASI DASHBOARD WMS BERBASIS WEB SERVICE DENGAN MENGGUNAKAN TEKNOLOGI .NET WEB SERVICE DAN PHP ]]>
<![CDATA[Ryan Permana]]>;
<![CDATA[Didiek S Wiyono]]>;
<![CDATA[Nanang Ismail]]>
<![CDATA[ JURNAL ISTEK Vol 5, No 1-2 (2011): ISTEK ]]>
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<![CDATA[Warehouse Management System needs an item inventory, configuration saving method of items, integration among warehouses, and warehouse finance control. All of the aspects must be well arranged, in order to avoid warehouses’s work performance decrease that can affect to supply chain profit. To avoid the supply chain from losses, a warehouses need a system that can help to maintain and manage all of warehouse’s variables. A system that can implemented is WMS Dashboard. WMS Dashboard is an application that can show the warehouse’s data realtime and with high accuration. WMS Dashboard’s services are made by using ASP.NET Web Service Technology which use SOAP protocol and WSDL interface so it support multi platform system to system communication which using HTTP protocol. The database of WMS Dashboard is made by using MS SQL Server DBMS which has fully compatibility with other applications that made by .NET Framework. Object oriented PHP is need to made the application for client side. WSDL of WMS dashboard application consist of 56 services. The services has been integrated with WMS Dashboard Application which based on PHP, so it would be accessed easily, and it can be used to help maintain and manage the Warehouse System variables.]]>
<![CDATA[PENILAIAN RESIKO TEKNOIOGI INFORMASI & KEAMANAN SISTEM INFORMASI DENGAN MENGGUNAKAN FRAMEWORK COBIT 4.1 DAN GUIDELINES NIST SP 800-30 ( Studi Kasus : Rumah Sakit Umum Dr Slamet Garut ) ]]>
<![CDATA[Yana aditia gerhana]]>;
<![CDATA[Erdiansyah Erdiansyah Erdiansyah]]>;
<![CDATA[Undang Syarifudin]]>
<![CDATA[ JURNAL ISTEK Vol 5, No 1-2 (2011): ISTEK ]]>
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<![CDATA[Every organization have a goal. In the digital era, organization use automated information technology to process their information for better support for their goals, and risk management plays and important role to protect information assets of organization and for that purpose can be accomplished. An effective risk management process is an important component of the success of information technology security program. The principle objectives of an organization’s risk management should be protect organization and the ability to perform their purpose is not to protect information technology assets only. For this risk management process should not be treated purely as a function but the technique is the basis of the management functions of the organization.]]>
<![CDATA[PENENTUAN LEVEL DENSITY UNTUK Th-230 (n,f) ]]>
<![CDATA[Yudha Satya Perkasa]]>
<![CDATA[ JURNAL ISTEK Vol 5, No 1-2 (2011): ISTEK ]]>
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<![CDATA[Fisibilitas suatu nuklida dapat ditentukan melalui proses penentuan penampang lintang fisi dengan melibatkan parameter struktur inti seperti level density dan fission barrier. Level density sangat berperan penting dalam penentuan parameter koefisien transmisi dan populasi dari inti yang akan melakukan fisi. Di dalam paper ini, penentuan level density akan dilakukan dengan menggunakan pendekatan temperatur konstan dari Gilbert-Cameron dengan memanfaatkan formulasi Ignatyuk untuk menentukan parameter level density (LDP) yang bergantung pada energi eksitasi. Setelah melalui proses pembandingan dengan data ENDF ternyata hasil perhitungan penampang lintang fisi total untuk Th-230 masih memiliki ketidaksesuaian pada daerah energi yang cukup lebar. Ketidaksesuaian ini sebagian besar diakibatkan oleh ketidakhadiran beberapa parameter penting yang harus dilibatkan di dalam proses perhitungan. Parameter-parameter tersebut mewakili keadaan sebenarnya dari mekanisme reaksi Th-230(n,f). Hasil perhitungan level density dan LDP dari dua buah inti residual Th-230 dan Th-231 menunjukkan signifikansi dari karakteristik masing-masing inti tersebut.]]>
<![CDATA[SIFAT-SIFAT RUANG HASIL KALI DALAM-n KOMPLEKS ]]>
<![CDATA[Sri Maryani]]>
<![CDATA[ JURNAL ISTEK Vol 5, No 1-2 (2011): ISTEK ]]>
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<![CDATA[Inner product is an important concept to learn the properties of geometry in the plane or space. Its can be generalized to n-inner product spaces. This paper will reprove the properties of n-inner product spaces.]]>
<![CDATA[TRAIL EULER MINIMAL DI DALAM GRAF BERARAH YANG TERBOBOTI ]]>
<![CDATA[Siti Julaeha]]>;
<![CDATA[Murtiningrum Murtiningrum]]>;
<![CDATA[Rida Novrida]]>;
<![CDATA[Endang Retno Nugroho]]>
<![CDATA[ JURNAL ISTEK Vol 5, No 1-2 (2011): ISTEK ]]>
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<![CDATA[Suppose G is a Eulerian directed graph with an edge labeling. In this paper will discuss the literature studies an algorithm to construct Euler trail that starts at a node r with the lexicographic minimum label among all Euler trail that starts node r is.]]>
<![CDATA[NOTES ON ISLAMIC NATURAL BASED AND AGRICULTURAL ECONOMY ]]>
<![CDATA[M. Subandi]]>
<![CDATA[ JURNAL ISTEK Vol 5, No 1-2 (2011): ISTEK ]]>
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<![CDATA[Islam memiliki misi dan tujuan yang menyeluruh dan lengkap dalam mengatur kehidupan manusia. Terjalin hubungan yang jelas antara kegiatan ekonomi produktif dengan tujuan mencapai kesejahteraan hidup ummat. Hampir setiap aktivitas kehidupan melibatkan kegiatan ekonomi. Nilai yang dikembangkan dalam berproduksi harus sesuai dengan norma dan nilai yang diajarkan Islam. Ekonomi produksi Islam menjamin kesejahteraan ummat secara adil. Keterampilan teknologi untuk mengolah sumber daya alam yang merupakan milik Allah harus dikuasai oleh muslim. Aspek ekonomi produksi harus dikuasai oleh muslim agar muslim dapat memenuhi kebutuhan pangan, sandang dan bahan baku industrinya sendiri. Muslim harus dapat memilih prioritas jenis produksi dan pandai menentukan pemanfaatan sumber daya alam yang dimiliki negaranya. Muslim juga harus dapat memilih jenis industri (teknologi) tepat guna yang sesuai dengan potensi sumber daya manusia (SDM) dan sumber daya alamnya (SDA). Industri pertanian merupakan economi produksi yang cocok di Indonesia. Ihya al-mawat (memproduktifkan lahan) dianjurkan oleh Nabi Muhammad SAW.]]>
<![CDATA[PEMASANGAN SENSOR GELOMBANG ULTRASONIK UNTUK APLIKASI ROBOT ANTI-BENTUR ]]>
<![CDATA[Masturi Masturi]]>;
<![CDATA[Sujarwata Sujarwata]]>
<![CDATA[ JURNAL ISTEK Vol 5, No 1-2 (2011): ISTEK ]]>
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<![CDATA[Penelitian ini bertujuan untuk membangun sebuah mobil robot dan teknik pemasangan sensor gelombang ultrasonik untuk menghindari benturan. Teknik pemasangan sensor meliputi jarak sensor penerima ke pemancar gelombang ultrasonik dan panjang loop yang digunakan. Mengatur gerakan mobil robot secara otomatis dapat menghindari benturan dengan objek yang ada di depannya. Sistem otomasi pengaturannya menggunakan perangkat keras mikrokontroler Basic Stamp BS2SX buatan Parallax Inc Amerika, berupa IC PIC16C65 yang beroperasi pada tegangan 5 volt DC. Sedangkan perangkat lunaknya menggunakan bahasa pemrograman Pbasic. Program ditulis pada Basic Stamp Editor yang sudah diinstallkan pada PC, kemudian didownload ke EEPROM. Proses download program otomatis menghapus program sebelumnya sehingga program terakhir yang akan dieksekusi. Sensor gelombang ultrasonik yang digunakan dapat mendeteksi jarak objek terjauh 85 cm, sedangkan objek terdekat adalah 0,5 cm. Panjang loop yang dipasang pada mobil robot adalah 2 cm dan jarak antara transduser satu dengan yang lainnya 1,5 cm.Panjang loop yang dipasang pada mobil robot mempengaruhi jarak objek yang dapat dideteksi.]]>
<![CDATA[TEKNIK IMOBILISASI ADSORPSI DAN ENTRAPMENT FILM NATA DE COCO-BENEDICT UNTUK DETEKSI KADAR GULA DALAM URIN ]]>
<![CDATA[Meyliana Wulandari]]>
<![CDATA[ JURNAL ISTEK Vol 5, No 1-2 (2011): ISTEK ]]>
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<![CDATA[Person with Diabetes Mellitus (DM) usually have high level of sugar in his blood. He also has trouble on glucose transportation in his kidneys, so his urine has high glucose concentration. It was synthesized of chemical sensor based on Benedict to measure glucose level. Cellulose from nata de coco is used as supporting material for Benedict immobilization. The characteristics of sensor are determined through sensor leaching, linear range, limit of detection, reproducibility, and sensitivity by reflectance spectrophotometry. The parameter which needs to be optimal at adsorption method is Benedict concentration and the time of dipping. While at entrapment method optimation is rasio of cellulose mass: Benedict volume and Benedict concentration. The optimal result of maximum wavelength of Benedict cellulose sensor with both methods is 541.57 nm. Optimum condition of dipping time is 40 minutes. Rasio of cellulose: with Benedict volume optimum at 1: 3, with optimal concentration of Benedict is 0.2682 M at adsorption method and 0.4470 M at entrapment method. The amounts of leaching at entrapment method is smaller than amounts at adsorption method. Sensor characteristics with adsorption method are better than with entrapment method. The result of glucose level measurement at urine which uses adsorption method and entrapment sensor has small differences with level of glucose data which uses Nelson-Somogyi standard method. So, adsorption is method of Benedict cellulose sensor which is more accurate for determining glucose level in urine.]]>
