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Jurnal Gamma
Published by Universitas Muhammadiyah Malang
ISSN : -     EISSN : -     DOI : -
Core Subject : Education,
Education
Arjuna Subject : -
Articles 272 Documents
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MODEL TREE DENGAN SISTEM PERSAMAAN NON LINIER UNTUK PERAMALAN (FORECASTING)ALIRAN SUNGAI SETAHUN KEDEPAN ., Sulianto
Jurnal Gamma Vol 5, No 2 (2010): Maret
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Peramalan aliran setahun kedepan merupakan tahapan yang sangat penting dalam perencanaanpola operasi bangunan hidrolik terutama yang berfungsi untuk penyediaan air. Metode peramalankonvensional yang banyak diterapkan saat ini terbukti kurang memberikan hasil yang memuaskan.Model Tree Non Linier yang dikembangkan dalam penelitian ini terbukti secara kualitatif mampumempresentasikan perilaku aliran inflow Waduk Selorejo dan Waduk Lahor yang akan terjadi setahunkedepan.Model Tree Non Linier yang dapat memberikan hasil terbaik adalah sistem persamaan yangdibentuk dari seri data historik yang digeser bulanan, berarti aliran yang akan terjadi pada sebulankedepan (t+1) akan sangat dipengaruhi oleh nilai aliran pada bulan saat ini (t), bulan sebelumnya (t-1), 2 bulan sebelumnya (t-2) hingga 12 bulan sebelumnya (t-12). Dengan menggunakan p runningfactor sebesar 1, maka diperoleh sejumlah 13 persamaan untuk prediksi aliran inflow Waduk Lahordan 14 persamaan untuk prediksi aliran inflow Waduk Selorejo.Implementasi sistem persamaan yang dihasilkan cukup baik dalam mempresentasikan hubunganantara vektor input(seridatahistorik) dengan vektor output(dataprediksi). Hasil perbandingangrafis secara visual menunjukkan bahwa output dari model dapat mengenali pola aliran yang terjadi.Pada pengujian terhadap data trainning diperoleh nilai RMSE sebesar 0,1792 m3/detik untuk datadariWaduk Lahor , dan sebesar 0,0723 m3/detik untuk data Waduk Selorejo. Pada pengujian terhadapdata testing diperoleh nilai RMSE sebesar 2,19 m3/detik untuk data dari Waduk Lahor dan sebesar1,89 m3/detik untuk data Waduk Selorejo.
IMPLEMENTASI SINGLE SIGN ON (SSO) UNTUK MENDUKUNG INTERAKTIVITAS APLIKASI E-COMMERCE MENGGUNAKAN PROTOCOL OAUTH ., Aminudin
Jurnal Gamma Vol 10, No 1 (2014): September
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Implementasi Single Sign On (SSO) Untuk Mendukung Interaktivitas Aplikasi E-Commerce Menggunakan Protocol OauthImplementation of Single Sign On (SSO) Support For E-Commerce Interactivity Applications Using Protocol OauthAminudinUniversitas Muhammadiyah MalangJl. Raya Tlogomas No 246 Malang*Email: aminudin2008@gmail.comABSTRACTIn this technology era, technology of single sign on is technology in great demand, especially in very large networks and heterogeneous (in current operating system and applications used by computers is derived from many vendors are asked to fill in the information itself into every platform the different to be accessed by the user). By using SSO, a user just simply attempt to authenticate only once to obtain permits, access to all services contained within the network. By using the OAuth protocol, a user can authorize the client to access protected data already residing on the server by giving the token without having submitted a username and password. OAuth allows a user to grant access to third-party sites to access their information stored on another service provider without having to split the access permissions or all of their data. Single Sign On system with utilized OAuth protocols is authentication technology with token code instead of the username and password. This research was expected to facilitate the user to authenticate the e-commerce application using the account provider that supports OAuth protocol, so that a positive effect on trade.Keyword : single sign on system, oauth protocol, social media, e-commerceABSTRAKDi era teknologi ini, teknologi single sign on adalah teknologi yang diminati, terutama di jaringan yang sangat besar dan heterogen (dalam sistem operasi saat ini dan aplikasi yang digunakan oleh komputer berasal dari banyak vendor diminta untuk mengisi informasi itu sendiri ke setiap platform yang berbeda untuk diakses oleh pengguna). Dengan menggunakan SSO, pengguna hanya cukup berusaha untuk otentikasi hanya sekali untuk mendapatkan izin, akses ke semua layanan yang terdapat dalam jaringan. Dengan menggunakan protokol OAuth, pengguna dapat mengotorisasi klien untuk mengakses data yang dilindungi sudah berada di server dengan memberikan token tanpa mengajukan username dan password. OAuth memungkinkan pengguna untuk memberikan akses ke situs pihak ketiga untuk mengakses informasi yang tersimpan pada penyedia layanan lain tanpa harus membagi hak akses atau semua data mereka. Single Sign On sistem dengan protokol OAuth digunakan adalah teknologi otentikasi dengan kode tanda bukan username dan password. Penelitian ini diharapkan dapat memudahkan pengguna untuk mengotentikasi aplikasi e-commerce dengan menggunakan penyedia account yang mendukung protokol OAuth, sehingga efek positif pada perdagangan.Kata Kunci : single sign on sistem, protokol oauth, media sosial, e-commerce
DAFTAR ISI GAMMA VOL.1 NO.1, SEPTEMBER 2005 Isi, Daftar
Jurnal Gamma Vol 1, No 1 (2005): September
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File
REKAYASA PROSES IRON SOFT MAGNETIC MELALUI MECHANICAL ALLOYING POWDER METALURGY BERBASIS SERBUK BESI LOKAL ., Murjito
Jurnal Gamma Vol 8, No 1 (2012): September
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REKAYASA PROSES  IRON SOFT MAGNETIC MELALUI MECHANICAL ALLOYING POWDER METALURGY BERBASIS SERBUK BESI LOKALMurjitoStaf Pengajar Jurusan Teknik Mesin, Fakultas Teknik Universitas Muhammadiyah Malang Email: moerjit@gmail.com, murjito@umm.ac.idABSTRACTSoft magnetic materials is a phenomenon that is interesting and unique, this uniqueness needs to be studied more deeply. Soft magnetic material (magnetic ferro) has been known since hundreds of years ago, but until now this process is still the process of making traditional process that is commonly used casting process. Casting process is still much to experience weaknesses and limitations, namely, melting energy is so high that no efficient, long process, the results can not be maximal, low dimensional accuracy, there is still further processes, and limited to certain elements, so that when it wants to make magnetic alloy of various elements or particles are still difficulties.To seek alternative production process of soft magnetic materials it is necessary to a solution or process engineering, on this occasion the researchers manipulate the process of soft magnetic material is iron with powder metalurgy mechanical alloying, in order to obtain the good soft magnetic iron and has high accuracy.In this study, researchers make the engineering process of soft magnetic iron production by mechanical alloying process based yan powder metalurgy local iron sands. Basis that the use of local sand backdrop of the results of the data that we can from raw materials and foundry industries penunjangsebagian materials are still imported. The ingredients are 100% pengadaanya still relies imported iron ore and materials are alloys (Alloy).The purpose of the study is the reverse process of soft magnetic iron by mechanical alloying of powder metalurgy process so that we will know the characteristics thermadinamika properties and mechanical properties of materials at various particle sizes up to the size of the micro / nano powder.Key word : soft magnetic materials, process engineering, mechanical alloying powder metalurgy
REKAYASA SISTEM PENGKABUT PADA MESIN PENURUN KADAR AIR MADU Fauzan, Achmad
Jurnal Gamma Vol 1, No 2 (2006): Maret
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Telah diketahui dari penelitian sebelumnya bahwa kualitas pengkabutan pada mesin penurun kadar air madu merupakan fungsi dari  celah nosel/ lubang nosel. tekanan, kecepatan aliran dan kekentalan. Pada penelitian ini dicoba rekayasa nosel agar nosel dapat menghasilkan pengkabutan yang lebih halus tetapi dengan kapasitas yang tidak terlalu turun. Hasilnya adalah nosel yang memiliki pengatur celah, dan mampu memberikan penurunan kadar air lebih baik.
IDENTIFIKASI POPULASI DAN KUALITAS SUSU SAPI PERAH PADA ANGGOTA KUBE PSP MAJU MAPAN DESA KEMIRI KECAMATAN JABUNG KABUPATEN MALANG Khotimah, Khusnul
Jurnal Gamma Vol 7, No 1 (2011): September
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Khusnul KhotimahStaf Pengajar Jurusan Produksi Ternak , Fakultas , Universitas Muhammadiyah MalangAlamat Korespondensi : Jln. Terusan Siguragura c/4 MalangEmail: thuthul17@yahoo.comABSTRACTThe purpose of this study were: (1). to know the number of population and non-lactating dairycattle lactation on each member of the KUBE PSP Equipments at kemiri Village Kecamtan JabungMalang Regency. (2). to be able to determine the population of a balanced comparison betweenlactating and non lactating cows are maintained ranchers people KUBE members Equipments PSPPecan Village District Jabung Malang Regency. (3). To know the quantity and quality of milk producedby dairy farm Equipments PSP KUBE members Pecan Village District Jabung Malang.Based on the number of lactating cattle population (pregnant or lactating tiadak) perekor averagedaily milk production for each region is a Tengo 6:55 liter, 7.8 liter kemiri village, and karanglo,lemabang and kresik at 6:04 liter. Whereas if it is based on the number of farmers are paid anaverage milk production of farmers from the tengo village at 10:28 liter; from 11:03 liter village, andkaranglo lemabang, kresik rate of 11 liters.The conclusion of this study is the population of dairy cows PSP Equipments KUBE membersoverall, with 125 active members when the study of 366 dairy cows with details of 201 lactatingcows (58 lactating pregnant and 143 lactating not pregnant), cows not as many as 23 head 17pregnant animals, pedt (23 males and 34 females), 75 dry cows. Volume of milk produced bylactating cows sebaesar 1340.5 201 liters per day or an average per day per head 6.7 liter, with 28%of the cattle population in a state of lactation milk quality average production of the IPS is intended,by at least 2.7% prpotein , Fat 3.7-4%, and 11.5-12.2 TS productivity (milk volume) is still low due,the lactation factor above 10 months old, renewal (replacement) above 5 times the lactation, and
EVALUASI KINERJA JALAN TOL AKIBAT HAMBATAN DENGAN METODE SCHOCK WAVE (STUDI KASUS JALAN TOL SURABAYA - GERSIK) Syaiful Amal, Andi
Jurnal Gamma Vol 1, No 1 (2005): September
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Jalan Tol adalah jalan berkapasitas tinggi yang menghubungkan kota kota yang mempunyai intensitas pergerakan tinggi sehingga harus dapat dijamin pergerakan lalu lintasnya selancar mungkin. akan tetapi tidak dapat dihindari adanya hambatan yang dapat terjadi di jalan tol , misalny kecelakaan yang mengharuskan ditutupnya sebagaian atau seluru jalurt jalan. gelombang kejut (Schock wave) didevinisikan sebagai arus pergerakan yang timbul disebabkan adanya perbedaan  kerapatan dan kecepatan lalu lintas diruas jalan. perbedaan kerapatan dan kecepatan lalu lintas diruas jalan. perbedaan kecepatan tersebut disebabakan karena adanya penyempitan. analisa gelombang kejut dapat
WAKTU PEMBERIAN RETARDAN PADA BEBERAPA VARIETAS KACANG TANAH (ARACHYS HIPOGAEA L.) Arifah, Sri Mursiani
Jurnal Gamma Vol 7, No 2 (2012): Maret
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WAKTU PEMBERIAN RETARDAN PADA BEBERAPAVARIETAS KACANG TANAH (Arachys hipogaea L.)Sri Mursiani ArifahStaf Pengajar, Jurusan Agroteknologi, Fakutas Pertanian PeternakanUniversitas Muhammadiyah MalangEmail: sri_mursiani@umm.ac.idABSTRACTHigh and low plant peanuts directly affects the interest that has been fertilized, strike the ground and become pithy pods and production levels. In general, peanuts entered high generative phase ranges from 60-70 cm, depending on the varieties used, the alternative solution of the problem when using retardants effective time of administration to certain varieties of peanuts.Purpose of the study to determine the timing of the effective retardants in some varieties of peanuts. Conduct of research using randomized block design arranged in factorial. Factor I, consisting of three levels of administration time and factor II consisted of four varieties of varieties, each repeated three times.Observations show that there has interaction between timing of retardan giving and peanut varieries in all research variable.Conclusions of this study is the effective time of each delivery retardants varieties at the age of 2 weeks and no difference in the response of each variety on the provision of retardants on the age of 2 weeks, but different compared with the control and administration retardants at the age of 4 weeks. Giving retardants at the age of 2 weeks tingga plants obtained from four varieties of peanuts ranges from 34.55 - 35.21 cm with a weight range of the pithy pods per plot 1232.23 - 1233.98 kg per plot.Key words: retardants, and varieties
PENAMBAHAN KALSIUM PADA PAKAN UNTUK MENINGKATKAN FREKUENSI MOLTING LOBSTER AIR TAWAR (CHERAX QUADRICARINATUS) (CALCIUM ADDITION ON FOODS TO INCREASE FREQUENCY OF CHERAX QUADRICARINATUS MOULTING) Rahman Hakim, Riza
Jurnal Gamma Vol 5, No 1 (2009): September
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The purpose of this research is to know the effect of calcium addition on foods to frequency offreshwater lobster (Cherax quadricarinatus) moulting. This research has been done during 30 daysin Fisheries Indoor Laboratory, Faculty of Animal Husbandry and Fisheries, University ofMuhammadiyah Malang.Result of research shows that calcium addition on foods success to increase frequency offreshwater lobster moulting. It shown by treathment B (2%) which has highest moulting frequency1,47. Then followed by treathment D (6%) = 1,40, treathment A (0%) = 1,27, and treathment C (4%)= 1,13. Calcium addition on foods also give positive effect to survival rate and growth of freshwaterlobster. All of treathments were added by calcium show that they have higher survival rate valuethan other treathments were not by added calcium. The sequential data of the average of freshwaterlobster survival rate are treathment B (2%) = 93,33%, D (6%) = 93,33%, C (4%) = 86,67%, dan A(0%) = 80 %. Whereas the sequential data of average to growth of freshwater lobster are treathmentB (2%) = 0,85 g, D (6%) = 0,79 g, C (4%) = 0,78 g, dan A (0%) = 0,73 g.
PEMBUATAN BETON RINGAN DARI AGGREGAT BUATAN BERBAHAN PLASTIK Rommel, Erwin
Jurnal Gamma Vol 9, No 1 (2013): September
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Pembuatan Beton Ringan Dari Aggregat Buatan Berbahan Plastik Making Lightweight Aggregate Concrete From Artificial PlasticErwin Rommel Jurusan Teknik Sipil Fakultas Teknik Universitas Muhammadiyah MalangJalan Raya Tlogomas 246 Malang 65144email : erwin67pro@yahoo.com ABSTRACTPlastic is the type of waste non-biodegradable, although in the long term. It is therefore necessary to use plastic waste soon This research begins with the manufacture of aggregate through the choppe  process, heating and molding of High Density Polyethylene  plastic waste into piece of aggregate size of 20 mm. Then test the characteristics of aggregate, mix design and provide concrete with heat treatment at each temperature 30, 45, 60, 75, 90 and 1100 C. The test of results obtained plastic aggregate specific gravity 1.15; bulk density  1378 kg/m3; aggregate abrasion  29.64% explained that the aggregate  can be used as the lightweight concrete. Lightweight concrete made   with a mix design ratio of cement: sand: aggregate of plastic 1:2:1,5 and fas 0.35  obtained maximum compressive strength of 13.16 MPa so that the concrete in the category for the use of lightweight structures such as wall panels, concrete  sills , cladding. Appropriate use of lightweight concrete for structures that are protected because of the high temperatures can reduce the strength of concrete. High absorption rate of 8.043% and a porosity of 10.7%  suggested the use of lightweight concrete in areas that have low levels of humidity.Keywords: Lightweight concrete, plastic artificial aggregate, compressive strength ABSTRAKPlastik adalah jenis sampah non-biodegradable, meskipun dalam jangka panjang. Oleh karena itu perlu menggunakan sampah plastik segera Penelitian ini dimulai dengan pembuatan agregat melalui proses Choppe, pemanasan dan molding dari High Density Polyethylene sampah plastik menjadi bagian dari ukuran agregat dari 20 mm. Kemudian menguji karakteristik agregat, campuran desain dan menyediakan beton dengan perlakuan panas pada setiap suhu 30, 45, 60, 75, 90 dan 1100 C. Pengujian hasil yang diperoleh plastik berat jenis agregat 1,15; bulk density 1378 kg / m3; abrasi agregat 29,64% menjelaskan bahwa agregat dapat digunakan sebagai beton ringan. Beton ringan dibuat dengan rasio desain campuran semen: pasir: agregat plastik 1: 2: 1,5 dan fas 0,35 diperoleh kuat tekan maksimum 13,16 MPa sehingga beton dalam kategori penggunaan struktur ringan seperti panel dinding , kusen beton, cladding. Penggunaan yang tepat beton ringan untuk struktur yang dilindungi karena suhu tinggi dapat mengurangi kekuatan beton. Tingkat penyerapan tinggi 8,043% dan porositas 10,7% menyarankan penggunaan beton ringan di daerah yang memiliki tingkat kelembaban yang rendah.Kunci-kata: Beton ringan, plastik agregat buatan, kuat tekan

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