JURNAL ISTEK
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MENGUATKAN KEMBALI PENDIDIKAN KEAGAMAAN DAN MORAL ANAK DIDIK
Get PDFPendidikan keagamaan menjadi salah satu solusi dalam usaha membendung terjadinya kondisi amoral yang tidak seharusnya terjadi belakangan ini, sehingga dengannya di harapkan adanya pembentukan kesalehan pribadi dan kesalehan sosial. Penguatan kembali akan pentingnya pendidikan keagamaan dan moral, salah satu memahaminya ialah dengan kesalahan persepsi dan kesalahan orientasi
RANCANG BANGUN ALAT GEOLISTRIK UNTUK MENENTUKAN JENIS BAHAN DI BAWAH PERMUKAAN BUMI
Get PDFPerangkat Geolistrik sebagai perangkat untuk mengetahu jenis bahan di bawah permukaan bumi telah berhasil dirancang-bangun. Secara umum kerja perangkat ini adalah menginjeksi arus listrik ke dalam bumi kemudian direspon kembali sebagai tegangan yang terukur. Perangkat Geolistrik menggunakan prinsip kerja inverter untuk menaikkan tegangan dan berfungsi sebagai mengubah arus DC menjadi arus AC atau sebaliknya. Pengujian perangkat Geolistrik secara laboratorium menggunakan resistror pembanding berhasil ditunjukan nilai pengukuran yang baik. Pengujian perangkat geolistrik dalam skala lapangan dengan menggunakan metode Wenner dan Schlumberger didapatkan nilai bentangan maksimal untuk nilai arus terkecil yang dapat terdeteksi
SINTESIS POLY(P-PHENYLENE VINYLENE) SEBAGAI MATERIAL POLIMER ELEKTRONIK
Get PDFIn this research has been done synthesis of PPV poly (p-phenylene vinylene) and its characterization. PPV synthesis was done by using method of precursor route that including steps of monomerization, PPV precursor polymerization and thermal conversion. Thermal conversion was done in nitrogen gas system with a temperature 300oC for 12 hours. From FT-IR characterization of monomerization given bonds of C-S, C-Cl, C-H, and C= C which indicates the monomer is sulfonium salt. From FT-IR characterization of PPV precursor polymerization follows bonds of C-H aliphatic, C-H trans-vinylene, C-H p-phenylene, C-Cl and C-S which indicates structure of precursor has been formed. However, the result of FT-IR to identify PPV polymer still found C-Cl bond and carbonyl which it showing PPV polymer is not excellent. From UV-Vis characterization of PPV shows it has a maximum absorption peak at 312 nm. PPV precursor of absorption peak is longer than PPV, that has value 326 nm
DESAIN DAN SIMULASI NUMERIK SINKRONISASI UNIDIRECTIONAL SIRKUIT JERK DAN APLIKASINYA UNTUK SISTEM KEAMANAN KOMUNIKASI
Get PDFSistem chaos mempunyai karakteristik ketergantungan yang sensitif pada kondisi awal, mirip dengan perilaku acak, dan memiliki strange attractor yang unik. Chaos mempunyai potensi yang baik untuk dijadikan sistem keamanan komunikasi. Dalam makalah ini, kami menunjukkan beberapa fenomena yang menarik dari tiga orde sirkuit Jerk dengan modulus non-linier. Perilaku chaos ini berfungsi sebagai variabel parameter kontrol. Penelitian awal dalam makalah ini adalah menganalisis diagram fase, diagram bifurkasi dan peta Poincare. Analisis sinkronisasi dalam kasus sinkronisasi unidirectional antara dua sistem chaos yang identik juga telah disajikan. Berdasarkan hasil sinkronisasi chaos tersebut, akhirnya efektivitas skema sinkronisasi unidirectional antara dua sistem Jerk yang identik dalam sistem keamanan komunikasi disajikan secara rinci dan menunjukkan potensi untuk dijadikan sebagai masking data. Integrasi fisika teoritis, simulasi numerik dengan menggunakan MATLAB serta implementasi simulasi sirkuit dengan menggunakan MultiSIM telah dilakukan dalam makalah ini
STRUKTUR VEGETASI MANGROVE DI PANTAI MUARA MARUNDA KOTA ADMINISTRASI JAKARTA UTARA PROVONSI DKI JAKARTA
Get PDFVegetasi mangrove merupakan tipe vegetasi khas yang terdapat di daerah pantai tropis, tumbuh di sepanjang pantai atau muara sungai yang dipengaruhi oleh pasang surut air laut. penelitian ini bertujuan untuk mengidentifikasikan struktur vegetasi mangrove di Pantai Muara Marunda Kota Administrasi Jakarta Utara Provinsi DKI Jakarta. Parameter yang diukur berupa 3 strata pertumbuhan (pohon, pancang, semai) dan parameter lingkungan disetiap stasiun yang diamati. Hasil penelitian menemukan struktur vegetasi mangrove di Pantai Muara Marunda terdiri dari 3 jenis mangrove yaitu Avicennia alba, Rhizophora mucronata, Rhizophora apiculata. Di kawasan pemukiman yang mendominasi adalah Avicennia alba ditingkat strata pohon. Untuk tingkat pancang yang mendominasi adalah Rhizophora mucronata. Untuk tingkat semai didominasi oleh Avicennia alba. Di lokasi II yaitu diwilayah tambak didominasi oleh Avicennia alba ditingkat pohon. Jenis vegetasi untuk tingkat pertumbuhan pancang didominasi oleh jenis Rhizophora mucronata. Untuk tingkat pertumbuhan semai yang paling mendominasi adalah Rhizophora mucronata. Indeks kenakeragaman jenis vegetasi mangrove berdasarkan shanon-wiener di Pantai Muara Marunda berkisar 0 – 0,43 termasuk ke dalam kategori rendah. Suhu udara di kawasan Pantai Muara Marunda berkisar 27 – 29ºC, kadar salinitas berkisar antara 29 – 300/00. Tingkat kelembaban antara 72 – 75ºC. Kecepatan angin berkisar antara 20,6 – 28,8 km/h dan memiliki keadaan substrat berlumpur. Secara keseluruhan yang mendominasi di kawasan Muara marunda tersebut adalah Avicennia alba dan Rhizophora mucronata
PENGARUH EKSTRAK DAUN SIRIH (Pipper Betle.L) SEBAGAI PERENDAM TELUR AYAM RAS KONSUMSI TERHADAP DAYA AWET PADA PENYIMPANAN SUHU RUANG
Get PDFThis research was conducted in Laboratory of Processing Livestock Product Technology at Faculty of Animal Husbandry, Padjadjaran University, Sumedang from July 31thto September 3th, 2010. The aim of this research was to find out the level of concentration of betle leaf extract as an hen’s egg soaker produce thes longest shelf life terms of haugh unit value, albumen index, and yolk index. This research used an experimental method with a Clompetely Randomized Design. There were five kinds treatments concentration level of betle leaf extract (P1=0%, P2=15%, P3=30%, P4=45%, P5=60%) with four replications. Duncan multiple range test were held to find the difference between any treatment in this research. The result of the research shows the use of betle leaf with the concentration level of 60% produce the longest shelf life 34 days in term haugh unit value, 32,75 days in terms of albumen index value and 34 days in term of yolk index value
SINKRONISASI CHAOS SIRKUIT LORENZ SERTA APLIKASINYA DALAM SISTEM KEAMANAN KOMUNIKASI
Get PDFLorenz 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
TINGKAT KOROSIFITAS AIR DI PERAIRAN PEMBANGKIT LISTRIK AIR WADUK CIRATA
Get PDFCorrosive water will affect the age of dam and hydroelectric equipment, hydropower. Analysis of water quality parameters of physical-chemistry at the surface and depth at the dam site and hydropower intake Cirata. Results of analysis using water corrosion index shows that the value of LSI 6.0 ie, 8.9 s / d 10.5 and LI> 0.2 0.63-0 , 97. Index value indicates the water in the water for hydropower generation Cirata (Dam site and Intake) has corrosive tendencies
REVITALISASI TASAWUF DI MASA MODERN
Get PDFThe reality view of some Moslems today in regard to Sufism is conservative, old-fashioned or even something which is not comes from Islam. On the other hand, modern life which is characterized with materialism, rationalism, and hedonism not only brings positive value to development of science and technology but also negative effects to human being. Human life becomes empty and detached from spirituals values. Eventually, acts of worship (Ibadah) that Moslems perform merely just a ritual that does not impact positively to personal piety or society. Therefore, revitalization of Sufism is aimed to reinstate the importance of Sufism for Moslems life with understanding the nature of Sufism itself. The essence of Sufism is to present Allah in every aspects of life. Commencing with learn to love, then improving the quality of life by loving something which is the most entitled to be loved, which is Allah. At the same time the interpretation of Zuhud is going through by putting into effect on daily life as a way to get the best place in the Hereafter as well as Allah\u27s approval
KEWIRAUSAHAAN-SOSIAL BERBASIS ORGANISASI MASYARAKAT (ORMAS) (Studi Analisis mengenai Pemberdayaan Ekonomi Ummat atas Unit Usaha-Sosial Persis, NU, dan Muhammadiyah di Kabupaten Garut)
Get PDFGlobalization has accelerated development grow twisted science, technology, and business. However, the acceleration of development is not accompanied by equity. Community with one another, or one person with another person has entered the dilemma of social inequality that was incredible. This is caused by business practices that are not responsible, development projects that are not effective, and poor government policies, making development efforts more difficult inclusive, and the increasingly adverse impact on the environment, social injustice and bring economic social conflicts and political. Management rules of social organization is no different from the management of business organizations, except the vision and mission, which is characterized by social interests. A management expert, Peter Drucker in his book Innovation and Entrepreneurship (1985), based on his observations in America, concluded that there has been an inevitable shift from conventional economic management to the management of social economy. For example, in terms of employment. Examples of cases in job creation in business organizations, and even reduce its workforce, while the social organization of small and medium scale became a provider of new jobs. Attention and efforts to develop self-employment and entrepreneurship increased. By considering these trends, more is needed in systemic efforts to answer this question. Collaborative actions that are sustainable over the government, the business sector, NGOs, CBOs, academic world, as well as the audience are widely needed to create a development more inclusive and equitable. Union of Islam (Persis), Nahdhatul Ulama (NU) and Muhammadiyah is one of the Islamic community organizations as well as a religious organization, serves also as a social organization. Its existence can be challenged to promote good social role in the economic, social, and cultural. In the economic field, the three CBOs are required to be able to play real people inspire economic progress.In the context of the Garutan, concrete steps are required three CBOs play a major role to be a problem solver ke-ummatan economy. Because the majority of people belonging to disadvantaged areas Garut is a majority of the "target" of these three mass organizations. Itself has a dark record arrowroot disadvantaged socio-economically