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Investigation into Piston-Slap Force under Friction and Connecting Rod Effects of Diesel Engine Balia, Fuadi Noor; Ridha, Muhammad; Mahzan, Shahruddin; Wahab, Abas AB
International Journal on Advanced Science, Engineering and Information Technology Vol 1, No 5 (2011)
Publisher : International Journal on Advanced Science, Engineering and Information Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | http://insightsociety.org/ojaseit/index.php/ijaseit/article/view/104

Abstract

In this paper, a dynamics analysis of diesel engine through investigation of the piston-slap force by considering the friction and connecting rod effects is presented. A single-cylinder of 500 cc Diesel Engine’s mechanism was examined. The position, velocity and acceleration of the pins and the center of mass for each linkage were calculated by using vector analysis principles. The governing equations of the forces and moments were derived based on the Cartesian coordinate principles, and solved by using Gauss elimination method. Hence, the piston-slap force onto the cylinder wall under friction and connecting rod effects were determined. Favourable comparison with previously published work was performed and excellent agreement between the results was obtained. The result shows that the friction and connecting rod effects significantly influence to the piston-slap force.
HUBUNGAN ANTARA BODY IMAGE DENGAN PENERIMAAN DIRI PADA MAHASISWA ACEH DI YOGYAKARTA Ridha, Muhammad
EMPATHY Jurnal Fakultas Psikologi Vol 1 No 2 Desember 2012
Publisher : Fakultas Psikologi Universitas Ahmad Dahlan Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (22.216 KB)

Abstract

  Abstract This research aims to know the relationship between Body Image and Self-acceptance of student. The subject of this research is Aceh student who lives in Dormitory at Yogyakarta. Data collection tools used in this research is scale of Body Image and Self-acceptance. Data analysis method using correlation of Pearson Product Moment The result showed that significant that there is a positive relationship between body image and self acceptance at a student dormitory located in Yogyakarta. The relationship indicated by a correlation coefficient ( r ) = 0,318, ( = 0,013 p ). The contribution of effective body image by the reception is worth 10,11 %. Conclusion in this research is a significant positive relationship between a body image and self-acceptance of Aceh students who lives in Jogjakarta. These results informed that higher body image makes high self-acceptance. Then, the lower body image makes low self-acceptance. Keywords: body image, self acceptance
ESWL for renal and ureteral stones Ridha, Muhammad; Soebadi, Doddy M
Indonesian Journal of Urology Vol 21, No 1 (2014)
Publisher : Indonesian Journal of Urology

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Abstract

Objective: To report patient characteristics and results of Huikang HK-V extracorporeal shockwave lithotripsy (ESWL) machine for renal and ureteral stones. Material & methods: We retrospectively analyzed medical records of all patients treated with ESWL using HK-V device at Department of Urology Soetomo Hospital from May 2011 - February 2012. Results: There were 241 selected patients, consisted of 148 men (61.4%) and 93 women (38.6%). Mean age was 47.8 years (range 7-87). ESWL was conducted to 130 single stones and 111 multiple stones, using fluoroscopy as guidance for 166 patients, ultrasound for 31 patients (12.9%) and both for 44 patients (18.3%). Stone location was 109 in lower pole (41%), 69 in middle pole (26%), 41 in proximal ureter (16%), 28 in upper pole (11%), 14 at renal pelvis (5%), 1 at distal ureter (0.3%) and 2 staghorn stone (0.7%). There were 130 patients with stone less than 10 mm (53.9%), 102 with stone 10-20 mm (42.3%), and 9 more than 20 mm (3.7%). There were slightly more left-sided treatment was 141 patients (58.5%). Of 181 patients with hydronephrosis (75%), 104 had DJ stent inserted (43.2%). Overall, we found 158 patients (65.5%) were stone free after treatment, 49 patients (20.3%) with residual stones less than 4 mm and 34 patients (14.1%) had more than 4 mm residuals. Conclusion: ESWL is the treatment of choice for simple renal and ureteral stones less than 20 mm (opaque and non opaque).Keywords: Extracorporeal Shockwave Lithotripsy, renal stones, ureteral stones.
ESWL FOR RENAL AND URETERAL STONES Ridha, Muhammad; Soebadi, Doddy M.
Indonesian Journal of Urology Vol 21, No 1 (2014)
Publisher : Indonesian Urological Association

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Abstract

Objective: To report patient characteristics and results of Huikang HK-V extracorporeal shockwave lithotripsy (ESWL) machine for renal and ureteral stones. Material & methods: We retrospectively analyzed medical records of all patients treated with ESWL using HK-V deviceat Department ofUrology Soetomo Hospital from May2011 - February 2012. Results: There were 241 selected patients, consisted of 148 men (61.4%) and 93 women (38.6%). Mean age was 47.8 years (range 7-87). ESWL was conducted to 130 single stones and 111 multiple stones, using fluoroscopy as guidance for 166 patients, ultrasound for 31 patients (12.9%) and both for 44 patients (18.3%). Stone location was 109 in lower pole(41%), 69 in middle pole(26%), 41 in proximal ureter (16%), 28 in upper pole (11%), 14 at renal pelvis (5%), 1 at distal ureter(0.3%) and 2 staghorn stone (0.7%).There were 130 patients with stone less than 10 mm (53.9%), 102 with stone 10-20 mm (42.3%), and 9 more than 20 mm (3.7%). There were slightly more left-sided treatment was 141 patients (58.5%). Of 181 patients with hydronephrosis (75%), 104 had DJ stent inserted (43.2%). Overall, we found 158 patients (65.5%) were stone free after treatment, 49 patients (20.3%) with residual stones less than 4 mm and 34 patients (14.1%) had more than 4 mm residuals. Conclusion: ESWL is the treatment of choice for simple renal and ureteral stones less than 20 mm (opaque and non opaque).Keywords:Extracorporeal Shockwave Lithotripsy, renal stones, ureteral stones.
PENGARUH FLIPPED MASTERY CLASSROM TERHADAP PEROLEHAN HASIL BELAJAR KOGNITIF MAHASISWA Ridha, Muhammad; Setyosari, Punaji; Kuswandi, Dedi
Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan Vol.1, No.4, April 2016
Publisher : Graduate School of Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (418.507 KB) | DOI: 10.17977/jp.v1i4.6211

Abstract

This study aims to investigate the effect of flipped mastery classroom towards students learning outcomes on educational psychology subject. Subject of this research are students of Educational Department of State University of Malang academic year 2015/2016 in intact group. Flipped mastery classroom is a strategy uses in experimental group and traditional strategy is a strategy uses in control group. The design of the research is Quasi Experiment Non Equivalent Control Group Design. The result shows that the use of flipped-mastery have positive impact on students learning outcomes. The experimental group hs better score significantly than the control group.Tujuan dari penelitian ini adalah untuk mengetahui pengaruh penerapan strategi flipped mastery classroom terhadap perolehan hasil belajar kognitif mahasiswa pada matakuliah psikologi pendidikan. Subjek dalam penelitian ini adalah mahasiswa Jurusan Teknologi Pendidikan Universitas Negeri Malang semester genap tahun ajaran 2015/2016 pada kelas utuh. Kelas eksperimen dibelajarkan dengan strategi flipped-mastery classroom dan kelas kontrol dibelajarkan dengan strategi tradisional.  Penelitian ini menggunakan rancangan kuasi eksperimen Non Equivalent Control Group Design. Hasil penelitian menunjukkan bahwa penerapan strategi flipped mastery classroom memberikan pengaruh positif terhadap perolehan hasil belajar kognitif mahasiswa. Perolehan hasil belajar kognitif mahasiswa yang dibelajarkan dengan strategi flipped-mastery lebih tinggi secara signifikan dari pada perolehan hasil belajar mahasiswa yang dibelajarkan dengan strategi tradisional.
AL-ALAQAH BAINA TAQSIM AL-SHAF AL-DIRASIY WA INJAZ AL-TALAMIDZ FI TALIM AL-LUGHAH AL-ARABIYAH Ridha, Muhammad; Albantani, Azkia Muharom
Arabi : Journal of Arabic Studies Arabi : Journal of Arabic Studies | Vol. 1 No. 2 December 2016
Publisher : IMLA (Arabic Teacher and Lecturer Association of Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (610.254 KB) | DOI: 10.24865/ajas.v1i2.14

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This research was aimed to identify the relation between classroom classification based on the cognitive level and students’ achievement in learning Arabic language. The method used in this research was quantitative using the samples all the 8th grade of MTsN 2 Jagakarsa, 50 students academic year 2012/2013. The research found that there was no relationship between classifying students based on their cognitive level and their achievement in Arabic language with the value (-0,130). This value is between (0,00 – 0,20) meaning that there is no correlation between those two variables. It means that the alternative hypothesis (Ha) was rejected and the null hypothesis (Ho) was accepted or there was no relationship between the variables.DOI: 10.24865/ajas.v1i2.14
DILEMA PELEMBAGAAN PARTAI GOLONGAN KARYA (GOLKAR) DI TINGKAT LOKAL: FENOMENA POLITIK KLAN Ridha, Muhammad
CosmoGov Vol 2, No 1 (2016)
Publisher : Departemen Ilmu Pemerintahan FISIP UNPAD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1343.949 KB) | DOI: 10.24198/cosmogov.v2i1.11855

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Tulisan ini dimulai dari keresahan penulis mengenai fenomena politik klanyang banyak bermunculan di Indonesia, justru ketika Indonesia pada kenyataanyyasedang dalam proses demokratisasi. Harus diakui bahwa, fenomena politik klanmembangun sebuah paradoks dalam proses demokratisasi di Indonesia. Namunpada tulisan ini, penulis mencoba untuk fokus kepada keterkaitan antara politikklan dengan institusionalisasi partai politik, dengan melihat partai Golkar sebagaisebuah arena dimana politik klan dan institusionalisasi partai bertemu.Pertemuan antara politik klan dan institusionaisasi partai ini dapat terjadi diPartai Golkar, karena disamping keberhasilan partai Golkar untuk bertahan dalamgelombang demokratisasi dan transformasinya dari organisasi penyokong rezimotoriter Orde Baru menjadi partai politik yang demokratis, dimana keberhasilanitu bisa dikatakan akibat dari adanya institusionalisasi partai yang baik, justru ditingkat daerah atau dalam istilah Partai Golkar, Dewan Pimpinan Daerah (DPD),banyak sekali terjadi praktik politik klan yang dari sudut pandang konsepInstitusionalisasi partai adalah sebuah paradoks.Kesimpulan dari tulisan ini adalah, politik klan dapat muncul dalam prosesdemokratisasi internal partai Golkar akibat dari, pertama, demokrasi di Indonesiayang membutuhkan biaya sangat mahal yang membuat partai membutuhkandukungan finansial yang mumpuni dengan memanfaatkan kader-kader di daerahyang tergolong kepada local strongman yang memiliki akses kepada modalekonomi dan juga modal sosial. Kedua, adanya ketidaksiapan publik menghadapiperubahan yang dibawa oleh demokratisasi, ketika mereka sudah terbiasa selama32 tahun berada dalam baying-bayang rezim otoriter Orde Baru untuk memilihseseorang dalam pemilu berdasarkan hubungan patron-klien
EKONOMI POLITIK PEMBANGUNAN INFRASTRUKTUR DAN KEPENTINGAN KAPITAL Ridha, Muhammad
JPP (Jurnal Politik Profetik) Vol 4, No 1 (2016): Jurnal Politik Profetik
Publisher : ILMU POLITIK UNIVERSITAS ISLAM NEGERI (UIN) ALAUDDIN MAKASSAR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jpp.v4i1.2740

Abstract

This research is a descriptive political economy on what and who obtains the most advantages of the politics of building infrastructure and of creating local, regional and international financial schemes. For its analysis, the writer applies common logic of Karl Marx on creating values in production of capitalism facilitated by the distribution process of creating highways and other infrastructures, which is commonly known as a process of producing spaces. Through observation, it is found that the process of infrastructure politics, in fact, provides more benefits to local, national and global economic oligarchy, than to the publics in general.
Kajian Mutu Ikan Lele (Clarias batrachus) Asap Kering Agustina, Raida; Syah, Hendri; Ridha, Muhammad
Jurnal Teknologi dan Industri Pertanian Indonesia Vol 5, No 3 (2013): Vol.(5) No.3, October 2013
Publisher : Agricultural Faculty

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (129.499 KB) | DOI: 10.17969/jtipi.v5i3.1978

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Catfish is health food which contains good nutritional values. Aceh people frequently consume this fish in fresh with complicated special recipe, so that the rate consumption of this fish is still low. Therefore, it is important to find the method for preserving this fish to improve its consumption. Liquid smoke can be used as one method to prepare the fish. The purpose of this study is to assess the quality of catfish under the treatments with and without soaking the fish in liquid smoke.Catfish was cleaned and washed, then it was dipped in solution with 2% salt for 30 min. Afterthat, catfish were air-dried for about 1 hour. About 200 ml of liquid smoke was diluted in 9800 ml water. After soaking in solution with 2% liquid smoke for 10min, catfish were dried by using a cabinet dryer which has three layers. The parameters observed were moisture content and sensory analysis. About 25 panelists had evaluated the samples for appearance, flavor, taste, texture, and color.The results showed that the combination process of smoking and drying might maintain the product quality. The moisture contents of all products were still in appropriate amount as required by the Indonesian Standar (SNI).  According to organoleptic test, the smoke-dried catfish was preferred by panelist than the unsmoked-dried one. Therefore, soaking catfish in liquid smoke can be used to improve the taste of the fish. Further study is recommended to evaluate the shelf life of smoke-dried catfish.
The State, Class Struggle, and Capitalist Development in Indonesia and South Korea: A Marxist View Ridha, Muhammad
Jurnal Politik Indonesia: Indonesian Political Science Review Vol 3, No 2 (2018): Special Issue: Problems and Prospects after 20 Years Reform
Publisher : Political Science Program, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (225.001 KB) | DOI: 10.15294/ipsr.v3i2.14227

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This paper aims to understand why similar efforts of state intervention can generate different economic outcomes. It argues that the different economic outcomes of state intervention can be traced back to the different processes of class struggle. Mobilizing Marxist view, it suggests that the state role in the economy should be understood as inseparable from capitalist development. That is, economic development is the terrain for class struggle between capital and labor. Although the contradictory relation between capital and labor is universal and global in capitalism, the form of contradiction will always be different across societies. That is the case because the form of class struggle depends on the specific development of the configuration of class power that has developed historically in each country alongside with its international process due to the expansive nature of capitalism itself.