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STUDI KAITAN PARAMETER PENGEREMAN DENGAN BEBAN DINAMIS PADA KENDARAAN Mustofa, Mustofa; Naharuddin, Naharuddin; Basri, Basri
Jurnal MEKANIKAL Vol 1, No 1 (2010)
Publisher : Jurnal MEKANIKAL

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Abstract

This research aims to study influence of parameters of brakes components and dynamic weight on vehicle. Car of Suzuki Katana is taken as sample of a braking study. Data was procured in the mechanical engineering laboratory of Tadulako University and in the Duty Communication of District of Kayumalue in North Palu. Result of calculation indicates that oil pressure put on the brakes pw (kg/cm2), tread force of a brake pedal Q (kg) and dynamic weight of vehicle (kg) both front wheels and rear wheels weights are parameters which are significant in studying the brakes system.
Peningkatkan Kemampuan Menyusun Rencana Pelaksanaan Pembelajaran Bermuatan Pendidikan Budaya dan Karakter Bangsa Melalui Pembinaan Berkelanjutan Bagi Guru Kelas Tinggi di SD 7 Gondosari Kecamatan Gebog Kabupaten Kudus mustofa, Mustofa
Piwulang : Jurnal Pendidikan Bahasa Jawa Vol 7 No 1 (2019): Piwulang Jawi
Publisher : Jurusan Bahasa dan Sastra Jawa Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (414.991 KB) | DOI: 10.15294/piwulang jawa.v7i1.34116

Abstract

Penelitian ini bertujuan untuk meningkatkan kemampuan guru dalam membuat silabus dan rencana pelaksanaan pembelajaran (RPP) bermuatan pendidikan budaya dan karakter bangsa. Penelitian ini berjenis penelitian deskriptif dan kualitatif. Subyek penelitian meliputi semua guru kelas tinggi. Obyek penelitian kemampuan guru membuat RPP bernuansa pendidikan karakter bangsa. Sumber data dari hasil observasi terhadap guru kelas dan hasil studi dokumentasi RPP pada kelas pada kegiatan supervisi akademik. Hasil penelitian dari siklus pertama dan kedua didapatkan peningkatkan yang signifikan dalam menyusun pengembangan silabus dan rencana pelaksanaan pembelajaran (RPP) bermuatan pendidikan budaya dan karakter bangsa. Di siklus I pertemuan 1 diperoleh prosentase materi ajar 60%, penentuan indikator keberhasilan 60% dan sumber belajar sebanyak 80%. Pada pertemuan ke 2 diperoleh prosentase materi ajar 80% penentuan indikator 80% dan materi ajar 80%. Pada siklus II pertemuan 1 diperoleh prosentase tujuan pembelajaran 60%, metode 60%, kegiatan 80% dan bahan ajar 80%. Pada pertemuan ke 2 diperoleh prosentase tujuan pembelajaran 90%, metode 90% . Kegiatan 100% dan materi ajar 100%. Berdasar hasil tersebut pembinaan berkelanjutan sangat meningkatkan kemampuan guru dalam mengembangkan silabus dan rencana pelaksanaan pembelajaran bermuatan pendidikan budaya dan karakter bangsa.
KORELASI ANTARA KEMANDIRIAN BELAJAR DAN MINAT BERWIRASWASTA DENGAN HASIL BELAJAR PRAKTIK PENGELASAN PADA SISWA KELAS XI SMK MUHAMMADIYAH 3 NOGOSARI TAHUN PELAJARAN 2013/2014 Mustofa, Mustofa
Jurnal Nosel Vol 3, No 1 (2014): July
Publisher : Jurnal Nosel

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Abstract

The objectives of research are (1) to find out whether or not there is a correlation between learning independency and welding practice achievement  at the second grade of SMK Muhammadiyah 3 Nogosari Boyolali, (2) to find out whether or not there is a correlation between entrepreneurship interest and welding practice achievement at the second grade of SMK Muhammadiyah 3 Nogosari Boyolali, (3) to find out whether or not there is a correlation between learning independency and entrepreneurship interest and with welding practice achievement  at the second grade of SMK Muhammadiyah 3 Nogosari Boyolali. The population of research was the second grade of SMK Muhammadiyah 3 Nogosari Boyolali consisting of 66 students. The sample was taken using Proportional Random Sampling. The sample size was determined using Krecjie table. The sample consisted of 56 students. Techniques of collecting data used were questionnaire and documentation. The results of research showed that: (1) there is a positive significant correlation between learning independency and welding practice achievement  at the second grade of SMK Muhammadiyah 3 Nogosari Boyolali,  with p = 0.00 < 0.05, (2) there is a positive significant correlation between entrepreneurship interest and welding practice achievement  at the second grade of SMK Muhammadiyah 3 Nogosari Boyolali, with p = 0.00 < 0.05, (3) there is a positive significant correlation between learning independency and entrepreneurship interest with and welding practice achievement  at the second grade of SMK Muhammadiyah 3 Nogosari Boyolali, with p = 0.00 < 0.05.
TINJAUAN BUDAYA ATAS KULTUR TASAWUF BERBASIS MURSYID PEREMPUAN Mustofa, Mustofa
El-HARAKAH (TERAKREDITASI) el-Harakah (Vol 11, No 2
Publisher : UIN Maliki Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/el.v0i0.427

Abstract

Male and female, basically, have the same chance as idol muttaqin person, as well as a leader in the earth, including becoming a teacher of tarekat (mursyid). Assigning female as mursyid will not reduce or break the identity of the Sufism group, on the other hand, it is a kind of glorifying and respecting to the God. However, in tasawuf culture, most of the rituals conducted by the followers often reflecting the God in the male form. This conception, then, influences the way they lead the group. The common way of practicing the leadership model finally drives into legalizing the male superiority as the mursyid rather than the female one. Because of the phenomenon, the paper is written, to explore the issues on male and female role in the Sufism, specifically, for becoming the mursyid. It is expected to be powerful and meaningful cultural analysis which is viewed from tasawuf paradigm.
EFEKTIFITAS KOLEKTOR ENERGI SURYA PADA KONFIGURASI PARALEL SERPENTINE W, Danny Syamsu; Selleng, Kristian; Mustofa, Mustofa
MEKTEK Vol 14, No 1 (2012)
Publisher : MEKTEK

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Abstract

This study aims to demonstrate the effectiveness of the collector on the fluid mass flow rate variations in sunlight collectors on the configuration of the combined 'parallel-serpentine'. Value of the mass flow rate is 0.09, 0.18 and 0.36 ltr/min. Fluid drained from the reservoir of cold water through the collector pipe and into the parallel configuration serpentine configuration and then stored in the hot water tank. The test results showed that the efficiency of a mass flow rate achieved at the optimum 0.36 liter / min. This result is probably leading to suitable for domestic purposes.
Hubungan Antara Kemampuan Berpikir Formal dan Kecerdasan Visual-Spasial dengan Kemampuan Menggambarkan Bentuk Molekul Siswa Kelas XI MAN Model Gorontalo Tahun Ajaran 2010/2011 ., Mustofa; Pikoli, Masrid; Suleman, Nita
Jurnal Entropi VOL 08, NO 01, 2013
Publisher : Jurnal Entropi

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Abstract

Mustofa, 2011. Penelitian adalah penelitian kuantitatif dengan pendekatan deskriptif korelasional yang bertujuan untuk mengetahui: (1) hubungan antara kemampuan berpikir formal dengan kemampuan menggambarkan bentuk molekul siswa kelas XI MAN Model Gorontalo tahun ajaran 2010/2011; (2) hubungan antara kecerdasan visual-spasial dengan kemampuan menggambarkan bentuk molekul siswa kelas XI MAN Model Gorontalo tahun ajaran 2010/2011; dan (3) hubungan antara kemampuan berpikir formal dan kecerdasan visual-spasial dengan kemampuan menggambarkan bentuk molekul siswa kelas XI MAN Model Gorontalo tahun ajaran 2010/2011. Populasi dalam penelitian ini adalah siswa kelas XI.B1, XI.B2 dan XI.Bexcellent. Pengambilan sampel dilakukan dengan teknik sampel jenuh berjumlah 49 siswa. Uji normalitas data dengan menggunakan Chi-kuadrat, analisis data menggunakan analisis korelasi dan regresi sederhana, serta analisis korelasi ganda dan regresi ganda. Dari hasil penelitian diperoleh bahwa kemampuan berpikir formal mempunyai hubungan yang positif dan signifikan dengan kemampuan menggambarkan bentuk molekul siswa kelas XI MAN Model Gorontalo tahun ajaran 2010/2011, yang ditunjukkan dengan hasil uji t dimana th lebih besar dari ttabel (3,4787 > 2,021). Kecerdasan visual-spasial mempunyai hubungan yang positif dan signifikan dengan kemampuan menggambarkan bentuk molekul siswa kelas XI MAN Model Gorontalo tahun ajaran 2010/2011, yang ditunjukkan dengan hasil uji t dimana th lebih besar dari ttabel (4,8843 > 2,021). Kemampuan berpikir formal dan kecerdasan visual-spasial secara bersama-sama mempunyai hubungan yang positif dan signifikan dengan kemampuan menggambarkan bentuk molekul siswa kelas XI MAN Model Gorontalo tahun ajaran 2010/2011, yang ditunjukkan dengan hasil uji F dimana Fh lebih besar dari Ftabel (12,94 > 3,20).
MENYOAL KONTEKSTUALISASI HUKUM ISLAM TENTANG POLIGAMI Fata, Ahmad Khoirul; Mustofa, Mustofa
Al-Ulum Vol 13, No 2 (2013): Al-Ulum
Publisher : Institut Agama Islam Negeri (IAIN) Sultan Amai Gorontalo

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Abstract

Tulisan ini mengemukakan gagasan pembaharuan. Salah satu gugatan terjadi atas hukum-hukum Islam yang terkait dengan keluarga, khususnya poligami, karena dinilai tidak sesuai lagi dengan perubahan zaman yang mengharuskan kesetaraan laki-laki dengan wanita. Untuk menjawab itu, beberapa pihak mengajukan gagasan pembaharuan hukum Islam dengan dua epistemologi utama: penafsiran kontekstual atas nas-nas agama dan asas kemaslahatan. Dengan penafsiran kontekstual atas nas tentang poligami lahirlah kesimpulan bahwa poligami sesungguhnya bukan misi utama Islam. Misi utama Islam tentang pernikahan adalah monogami. Adanya teks-teks yang seolah-olah mengizinkan poligami tidak lain hanyalah sebentuk strategi Islam untuk menghilangkan poligami secara gradual. Namun kontekstualisasi hukum poligami masih menyisakan ruang kritik dimana kajian atas konteks itu masih belum obyektif dan cenderung menjustifikasi wacana dominan tentang relasi gender. ---------------------------This paper proposes an idea of revitalization. This idea is based on by looking at the lawsuits occurred within the Islamic laws related to family, especially poligamy. This is proposed because polygamy is believed no longer relevant with the changing times which now requires equality of between man and woman. To address this problem, some ideas put forward to reform and re-interpretate some Islamic laws which lays into two major epistemologies: first, contextual interpretation over the texts which are the basis of the implementation of poligamy which in turn was not the core mission of Islam. Meanwhile, it is believed that the fundamental goal of marriage in Islam monogamous. The justification of poligamy by putting forward the texts do not eliminate but gradually endorse the practices of polygamy itself. Therefore, there is still a room to critique the context of polygamy by contextualizing the polygamy laws in which most previous studies were not objective and tend to justify the dominant discoureses on gender relation.
In vitro antiplasmodial activity of 1,10- phenanthroline derivatives and its quantitative structure-activity relationship Mustofa, Mustofa
Journal of the Medical Sciences (Berkala Ilmu Kedokteran) Vol 35, No 2 (2003)
Publisher : Universitas Gadjah Mada

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Abstract

Background: Previous study showed that 1,10-phenanthroline skeleton were active in vitro on both Plasmodium falciparum chloroquine-resistant and -sensitive strains. Based on the skeleton, a series of 1,10-phenanthroline derivatives have been synthesized. However the antiplasmodial activity of those molecules has not been reported.Objective: To know the in vitro antiplasmodial activity of thirteen 1,10-phenantroline derivatives and its quantitative structure-activity relationship.Methods: The in vitro antiplasmodial activity was tested on two strains of Plasmodium falciparum, FcB1Columbia (chloroquine-resistant strain) and a Nigerian (chloroquine-sensitive strain) using a radioactive micromethod. The parasite growth was estimated by [3H1-hipoxanthine incorporation after 24 and 48 hours incubation with each molecule tested. The control parasite free from any molecules was referred to as 100% growth. For this radioactive method IC5o value showing concentration inhibiting 50% of the parasite was determined graphically in concentration versus percent inhibition curves. The quantitative structure-activity relationships (QSAR) of 1,10-phenanthroline derivatives were investigated using atomic net charges as predictors of their activity. Data of predictors were obtained using semi-empirical Austin Model 1 (AM1) calculation method. The possible linear relationships of in vitro antiplasmodial activity with atomic net charge parameters of those compounds were studied. The best model QSAR was evaluated by multiple linear regression method.Results: The results showed that the IC5o values of 1,10-phenanthroline derivatives range from 0.02 to 11.05 uM for the FcB1 strain and from 0.14 to 19.84 pM for the Nigerian strain. The molecure (4), 2,10- methy1-3-12-chloroethyl)-4-chloropirydo [2,3-i] quinolineium iodide exhibited the best in vitro antiplasmodial activity with an IC50 value ranging 0.02 to 0.16 1.1M. The best model QSAR was expressed by log IC5o = -3.4398 - 14.9050 qN1 - 8.5589 qC10 - 14.7565 qC7 + 5.0457 qC11 (n = 13; r = 0.96275; r2 = 0.92689; SE = 0.61578 and F (4,8) = 25.3556).Conclusion: The molecule (4) yield the best in vitro antiplasmodial activity on both P. falciparum strains. In addition, there is correlation between antiplasmodial activity and atomic net charges of atoms on the 1,10-phenanthroline skeleton.Key words : 1,10-phenanthroline, antiplasmodial activity, quantitative structure-activity relationships
ANALISIS SISTEM PENGEREMAN PADA MOBIL MITSUBISHI L300 JENIS PICK-UP Mustofa, Mustofa; Syahrani, Awal
Jurnal MEKANIKAL Vol 2, No 2 (2011)
Publisher : Jurnal MEKANIKAL

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Abstract

This research aims to analyze the parameters affecting the approach of analyzing both drum and disc brakes on Mitsubishi L300 vehicle of pick-up type. Supporting data was procured by measuring intensively the car brakes component in the Automotive engineering laboratory of Tadulako University and in the Duty Communication of District in Palu. Result of calculation indicates that rotation drum brake both CW and CCW affects the braking force (F). They are 643 and 2.828 kg, respectively. Associating with disc brakes, the tread of pedal brake influences oil pressure on brakes leading to force brakes on the axle. Permitting pedal force is about 19 kg. To pursue brakes analysis on the vehicle, simulation should be taken.
PENGARUH LAJU ALIRAN FLUIDA PENDINGIN TERHADAP UNJUK KERJA ALAT PENUKAR KALOR PIPA GANDA DENGAN PENGARAH BERALUR HELIX Putra, Eriek Aristya Pradana; Kennedy, Kennedy; Mustofa, Mustofa
Jurnal MEKANIKAL Vol 9, No 1 (2018): Jurnal Mekanikal Januari 2018
Publisher : Jurnal MEKANIKAL

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Abstract

Penelitian ini bertujuan untuk mengkaji alat penukar kalor pipa ganda dengan penambahan pengarah helix 40° dan tanpa pengarah, pada arah aliran fluida berlawanan arah dengan variasi kecepatan fluida dingin yaitu sebesar 0.67 m/s, 0.60 m/s dan 0.52 m/s. Dalam penelitian ini digunakan kondensor tipe double pipe dan untuk bahan shell digunakan akrilik dengan diameter dalam 74 mm dan diameter luar 80 mm. Pada tube menggunakan bahan stainless steel dengan diameter dalam 24 mm dan diameter luar 26 mm dengan panjang 1500 mm. hasil penelitian yang diperoleh menunjukan bahwa semakin cepat aliran fluida pendingin yang diberikan maka akan meningkatkan nilai efektifitas, laju perpindahan kalor dan penurunan temperature fluida panas. Penurunan temperatur yang diperoleh dengan menggunakan pengarah helix tiap variasi kecepatan sebesar 34,275 oC; 34,45 oC; 25,99 oC dan perpindahan kalor sebesar 7262,8; 6560,8; 5530 Watt. Kata Kunci : Pengarah helix 40ᵒ, kecepatan fluida dingin, perpindahan kalor.
Co-Authors Abdul Manaf Ali, Abdul Manaf Ade Setiawan Agus Sugiarto Agussalim Ahmad Hamim Sadewa Ahmad Khoirul Fata Akhwani Alatas, Haidar Alexis Valentin, Alexis Alfi Yasmina Ali Djamhuri Ali Ghufron Mukti Alimuddin . Andayani, Tri M. Andi Hairil Alimuddin Andi Namirah Muh. Syuaib AS, Andi Ange Desire Yapi, Ange Desire anis wihdayanti Arief Budiyanto Astuti, Rachmawati Darma atiq fauziyah Awal Syahrani Awal Syahrani Sirajuddin Basri Basri Bawazier, Lucky Aziza Chairil Anwar Chatarina Muryani Danny Syamsu W Danto, Danto Desi Suci Handayani Dessy Susanti, Inggit Dewi Sulistiyarini, Dewi Djaswadi Dasuki Djoko Wahyono Dwi Siswanta Edy Turjono Endah Puji Septisetyani, Endah Puji Endang Darmawan Erna Kristin Eva Rahmawati, Eva Evi Mulyani Faiz, Afiyatul Mahfudloh Faqih, Muhammad Izzatul Fredie Irijanto Gunawan Gunawan Hafizah, Noor Hidetaka Kawakita Ibrahim Arifin Idris, M. Manshur Ika Puspita Sari Indah Purwantini Indwiani Astuti JAKA WIDADA Jastria Pusmarani Jenny Hidayat Jumina Jumina Keisuke Ohto Kennedy, Kennedy Khoirul Fata, Khoirul Kristian Selleng Leo Soemardji Listini Listini, Listini Lorettha Wijaya Marhadi Saputro, Marhadi Masrid Pikoli Mintarsih, Betty Mintarsih, Betty Mohamad, Roni Muhammad Yazid Mulyani Surendra, Mulyani Muthi Ikawati Muvita Rina Wati Nazudin, Nazudin Nita Suleman Novita Carolia nurul latifah Parwanti, Sri Pekerti UA, Pekerti Purwandari, Elce Putra, Eriek Aristya Pradana Putri, Depi Rahmani, Mawardi Rahmani, Mawardi Ratna Asmah Susidarti Ratna Dewi Kusumaningtyas Refson, Refson Reni Nurjasmi, Reni Retno Wahyuningrum Rias Gesang Kinanti Riyanta Aribawa Roni Mohammad Rosida, Ika Nazilatur Ruslin Hadanu Rustan Hatib S Mursiti Sabirin Matsjeh Setyawan A, Setyawan Sidiq, Sidiq Sja'bani, Mochammad Soedjono Aswin Sri Handayani Sri Haryanti Sri Juari Santosa Sukari, Mohd. Aspollah Sukari, Mohd. Aspollah Sunarti Sunarti Supriatini Supriatini, Supriatini Surjadi, Lily Marliany Susiana Candrawati Susy Yunita Prabawati Triana Kusumaningsih W.A, Suwarto Wahyono Wahyono Widya Asmara Wiwiek Fatchurohmah, Wiwiek Wiwik Cahyaningrum, Wiwik Yanti Dwi Astuti, Yanti Dwi Yayi Suryo Prabandari Yayuk Dwi Rahayu, Yayuk Dwi Zulaela Zulaela, Zulaela