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All Journal International Journal of Engineering Science and Technology Development (IJEST) Mechatronics, Electrical Power, and Vehicular Technology Jurnal Tapis : Jurnal Teropong Aspirasi Politik Islam International Conference on Engineering and Technology Development (ICETD) Jurnal Agroteknos Jurnal Intelektualita: Keislaman, Sosial, dan Sains Insisiva Dental Journal : Majalah Kedokteran Gigi Insisiva E-Dimas: Jurnal Pengabdian kepada Masyarakat Machine : Jurnal Teknik Mesin Al Mi’yar: Jurnal Ilmiah Pembelajaran Bahasa Arab dan Kebahasaaraban JURNAL KAJIAN TEKNIK MESIN Societas : Jurnal Ilmu Administrasi dan Sosial Teknobiz : Jurnal Ilmiah Program Studi Magister Teknik Mesin Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi International Journal of Robotics and Control Systems Jurnal Gagasan Hukum Jurnal Ilmiah Teknik (JUIT) International Journal Science and Technology (IJST) International Journal of Ethno-Sciences and Education Research Jurnal Teknik Mesin Sinergi Indonesian Journal of Physics (IJP) e-Jurnal Inovasi Pembelajaran Sekolah Dasar Jurnal Pengabdian Masyarakat Bangsa AME (Aplikasi Mekanika dan Energi) : Jurnal Ilmiah Teknik Mesin Ihsanika : Jurnal Pendidikan Agama Islam JOSEE : Journal of College Student's Intellectual Journal of Applied Science and Advanced Engineering Almikanika e-Jurnal Inovasi Pembelajaran Sekolah Dasar
Rudi Irawan
Universitas Gunadarma
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PEMBELAJARAN IPS DENGAN MENGGUNAKAN MODEL COOPERATIVE LEARNING TIPE JIGSAW DI SEKOLAH DASAR Irawan, Rudi; Mansurdin, Mansurdin; Arwin, Arwin
e-Jurnal Inovasi Pembelajaran Sekolah Dasar Vol 6, No 2 (2018): (Mei-Agustus) e-JIPSD
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/e-jipsd.v6i2.3747

Abstract

This study aims to improve student learning outcomes in IPS learning with the model Cooperative Learning Type Jigsaw in grade V elementary school. The type of this research is Classroom Action Research (PTK). The results of the first cycle of research on average RPP 75% (C), increased in cycle II to 92,8% (SB). Implementation of cycle I on teacher aspect average 76% (C), increase in cycle II to 95,8% (SB). The implementation of cycle I in student aspect averaged 72,9% (C), increased in cycle II to 95,8% (SB). Student learning outcomes in cycle I average 76,5, increased in cycle II to 84,1. Thus, Model Cooperative Learning Type Jigsaw can improve student learning outcomes in IPS learning.Keywords: Learning Outcomes, Social Studies, Model Cooperative Learning Tipe Jigsaw 
AL TAGHAYYURĀT AL DILĀLIYYAH FÎ AL KALIMĀT AL SUNDĀWIYYAH AL MUQTARIDHAH MIN AL QURĀN AL KARÎM WA AL ISTIFĀDAH MINHĀ FÎ TA’LÎM AL LUGHAH AL ‘ARABIYYAH Irawan, Rudi; Syihabuddin, Syihabuddin; Nurbayan, Yayan
Al Mi'yar: Jurnal Ilmiah Pembelajaran Bahasa Arab dan Kebahasaaraban Vol 3 No 2 Oktober 2020
Publisher : STIQ Amuntai

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (704.902 KB) | DOI: 10.35931/am.v3i2.221

Abstract

Islam datang membawa kontribusi besar untuk membangun masyarakat Sunda. Diantaranya, pengayaan kata serapan dari Al quran. hal ini adalah bukti adanya hubungan yang kuat sejak masuknya Islam ke tanah Sunda. Penelitian ini bertujuan untuk mengetahui perubahan-perubahan semantis kata-kata serapan Sunda dari Alquran, dan juga bertujuan mengetahui metode pemanfaatannya dalam pengajaran bahasa Arab untuk orang Sunda. Dalam menyelesaikan penelitiannya, peneliti menggunakan metode analisis deskriptif. Metode ini digunakan untuk menganalisis kata-kata serapan dari semantisnya. Adapun caranya dengan membandingkan kedua bahasa, antara bahasa Arab dan bahasa Sunda dengan menggunakan dua kamus, kamus Arab dan kamus Sunda. Kemudian mendeskrifsikan dan menganalisis kata-kata serapan tersebut, dan berusaha mengaplikasikannya dalam pengajaran bahasa Arab untuk orang Sunda dalam bentuk taklim mufradat, qiraah, dan hiwar. Hasil penelitian menunjukan adanya perubahan-perubahan kata serapan dari segi semantis. Perubahan semantik terbagi menjadi tiga, yaitu: penyempitan makna, peluasan makna, dan perubahan makna, selain itu ada beberapa kata serapan yang tidak mengalami perubahan semantik. Penelitian ini juga menunjukan bahwa Kata-kata serapan ini dapat dimanfaatkan dalam pengajaran bahasa Arab untuk orang Sunda dengan berbagai macam cara dan metode, seperti pengajaran aswat, sharaf, pengajaran dalam kalimat sempurna, teks hiwar dan teks qiraah. Kata kunci: kata serapan, perubahan semantik, pemanfaatan
ANALISIS PERBANDINGAN JUMLAH THERMOELECTRIC GENERATOR MENGGUNAKAN RANGKAIAN SERI DAN PARALEL Ardiansyah, Irwan; Irawan, Rudi
ALMIKANIKA Vol 1 No 2 (2019): April
Publisher : UNIVERSITAS IBN KHALDUN BOGOR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/almikanika.v1i2.2350

Abstract

Elemen peltier merupakan alat thermoelectric yang di dalamnya terdapat bahan semi konduktor. Thermoelectric merupakan alat yang mempunyai dwifungsi/2 fungsi penggunaan, yaitu sebagai pebangkit energi listik (TEG) dan sebaga penghasil dingin (TEC). Dan dari hasil pembelajaran tersebut penulis ingin mengaplikasikannya Pengaplikasiannya salah satunya dengan mendesain mini generator 12V  dengan menggunkan energi panas dari hasil pembakaran atau kompor biomasa. Hal ini nantinya akan bermanfaat untuk digunakan di daerah–daerah atau di pegunungan yang belum teraliri listrik.
Perhitungan Pelepasan Kalor Pada Pipa Bagian Cooler Berdasarkan Perubahan Temperatur Evaporator Di Untai FASSIP-01 MOD.01 Alhuda, M Raffi; Juarsa, Mulya; Irawan, Rudi; -, Giarno; -, Joko; K, G.B Heru; Haryanto, Dedy
ALMIKANIKA Vol 4 No 1 (2022): Januari
Publisher : UNIVERSITAS IBN KHALDUN BOGOR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/almikanika.v4i1.7130

Abstract

ABSTRAK FASSIP-01 adalah sebuah piranti analisa pengembangan metode sirkulasi alam yang bertujuan dasar untuk mengedepankan aspek keamanan teknologi struktur PLTN. Ada beberapa komponen pada Untai FASSIP-01 Mod.1 yaitu komponen pemanas yang dinamakan Blankat Ceramick Heater (BCH-02), komponen pendingin dengan Refrigrant Cooling System (RCS), flowmeter untuk sensor aliran dan tabung Ekspansi. Sistem pasif menerapkan hukum alam untuk mengamati kondisi yang tidak stabil pada reaktor. Perlu dilakukannya eksperimen untuk mengetahui karakterisasi distribusi temperatur pada pendingin RCS di Untai FASSIP-01 Mod.1 dengan memvariasikan tekanan dan tegangan 100 volt. pengujian dilakukan selama 1 jam 30 menit dimana pada setiap 15 menit tekanan pada RCS dinaikan dari 1,5 bar sampai 3,0 bar pada valpe di RCS. Hasil eksperimen pada RCS, semakin besar tekanan yang diberikan maka temperaturnya semakin tinggi. Temperatur yang berada didalam section pipe lebih tinggi dibandingkan dengan temperatur dipermukaan section pipe, hal ini disebabkan karena terjadi heat loss pada celah-celah ruang didalam RCS sesudah mencapai pipa section. Kata kunci :  FASSIP-01; PLTN; RCS. ABSTRACT FASSIP-01 is a tool for analyzing the development of natural circulation methods with the basic aim of promoting the technological security aspects of nuclear power plant structures. There are several components on the FASSIP-01 Mod.1 Strand, namely heating components called Blankat Ceramick Heater (BCH-02), cooling components with Refrigrant Cooling System (RCS), flowmeter for flow sensors and Expansion tubes. Passive systems apply natural law to observe unstable conditions in the reactor. Experiments are needed to determine the characterization of temperature distribution in RCS coolers in the FASSIP-01 Mod.1 by varying the pressure and voltage of 100 volts. the test was carried out for 1 hour 30 minutes where every 15 minutes the pressure on the RCS was increased from 1.5 bar to 3.0 bar in the valpe in the RCS. The experimental results on the RCS, the greater the pressure given, the higher the temperature. The temperature inside the section pipe is higher than the surface temperature of the section pipe, this is due to heat loss in the space gaps within the RCS after reaching the section pipe. Keywords : FASSIP-01; PLTN; RCS.
Karakterisasi Temperatur Komponen Pendingin Untai FASSIP-01 Mod.1 Oktaviandi, Ryan; Irawan, Rudi; Juarsa, Mulya; Giarno, .
ALMIKANIKA Vol 4 No 3 (2022): Juli
Publisher : UNIVERSITAS IBN KHALDUN BOGOR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/almikanika.v4i3.7836

Abstract

Nuklir dapat berperan sebagai sumber energi alternatif yang dapat menunjang pasokan energi listrik nasional, maka oleh karna itu pemerintah peerlu mempertimbangkan agar dapat segera dibangunkan Pembangkit Listerik Tenaga Nuklir (PLTN). Akan tetapi adapun peristiwa kecelakaan yang terbaru di Fukushima Daiichi Jepang, yang disebabkan dari bencana alam berupa gempa bumi dan tsunami mengakibatkan sistem pendinginan reaktor yang tidak aktif, dikarnakan kegagalan pompa dan terbenamnya genset atau pendingin darurat tersebut Tidak berfungsi. Sistem untai FASSIP (FAsilitas Simulasi SIstem Pasif) adalah salah satu konsep keselamatan dalam reactor nuklir yang memanfaatkan proses sirkulasi alam dalam membuang panas yang dihasilkan oleh teras reactor untuk mendinginkan teras dan melindungi bejana reactor. Berdasarkan hasil yang didapat maka bisa diambil kesimpulan bahwa tekanan pada RCS dapat mempengaruhi temperature yang dihasilkan, performa terbaik RCS dalam penyerapan panas pada tekan 1,5 Bar dengan capaian penyerapan ∆T cooler yang mencapai -3,38 oC. sedangkan pada tekanan 3 Bar dengan penyerapan panas ∆T cooler yang mencapai -3,06 oC sedangkan temperature tertinggi mencapai -2,94 oC dengan tekanan pada RCS 1,8 Bar.Kata kunci :  Keselamatan PLTN; Untai FASSIP-01.Mod.1; Penyerapan panas; Tekanan.
PEMBELAJARAN IPS DENGAN MENGGUNAKAN MODEL COOPERATIVE LEARNING TIPE JIGSAW DI SEKOLAH DASAR Irawan, Rudi; Mansurdin, Mansurdin; Arwin, Arwin
e-Jurnal Inovasi Pembelajaran Sekolah Dasar Vol 6, No 2 (2018): (Mei-Agustus) e-JIPSD
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/e-jipsd.v6i2.3747

Abstract

This study aims to improve student learning outcomes in IPS learning with the model Cooperative Learning Type Jigsaw in grade V elementary school. The type of this research is Classroom Action Research (PTK). The results of the first cycle of research on average RPP 75% (C), increased in cycle II to 92,8% (SB). Implementation of cycle I on teacher aspect average 76% (C), increase in cycle II to 95,8% (SB). The implementation of cycle I in student aspect averaged 72,9% (C), increased in cycle II to 95,8% (SB). Student learning outcomes in cycle I average 76,5, increased in cycle II to 84,1. Thus, Model Cooperative Learning Type Jigsaw can improve student learning outcomes in IPS learning.Keywords: Learning Outcomes, Social Studies, Model Cooperative Learning Tipe Jigsaw 
PUNGGAWA-SAWI VALUES EDUCATION IN OVERSEAS BUGIS ETHNIC FAMILY AS LOCAL WISDOM OF THE FISHERMAN COMMUNITY (DESCRIPTION ANALYSIS FISHERMAN SOCIETY ON COAST BANDAR LAMPUNG) Irawan, Rudi
International Journal of Ethno-Sciences and Education Research Vol. 2 No. 3 (2022): International Journal of Ethno-Sciences and Education Research (IJEER)
Publisher : Research Collaboration Community (Rescollacom)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46336/ijeer.v2i3.305

Abstract

In changes the values of life skills that occur in the Bugis ethnic fishing community, Karang Village, Telukbetung Timur District, Bandar Lampung City as local wisdom are due to incompatibility between the rules that are lived by the behavior they carry out, the weak role of social institutions in conducting supervision and socialization.  The values of life that are framed in the activities of Bagang in the next generation are low in interest and the next generation to apply the values of life of the Bugis ethnic in overseas lands in their interactions among family members, the community as well as in the development and implementation of the Bagang activity.  This study aims to determine the description of local wisdom in the process of educating the value of the life of the Bagang fishing community (read; Bagan) of the Overseas Bugis ethnicity in Karang Village, Teluk Betung Timur District, Bandar Lampung City. The method used in this research is descriptive analytical research with a qualitative approach that functions to describe and explain a complex reality by applying concepts and theories that have been developed by scientists.Based on the results of the research and analysis, it was found that (1) the pattern of punggawa fishermen's families in preserving local wisdom in overseas lands by inculcating life skills values was more likely to be participatory education patterns.  This pattern tends to emphasize the process of the child's association with other punggawa or sawi who are more mature in developing their potential by providing maximum opportunities for achieving independence in living their lives.  (2) The sawi family in the process of preserving local wisdom by instilling life skills values their education, tends to use a repressive pattern from older family members to younger family members, either directly or indirectly.  Consequently, those with low education are positioned as people who accept the values of local wisdom in the lower class social strata.  (3) The process of applying the life skills values of punggawa or sawi  as local wisdom in the Bagang fishing community of the overseas Bugis ethnic in the Karang City Village area occurs because of the community's desire to survive with their existence as a fishing community that is unique with its traditions.
Effect of Rotation on the Performance of Paddle Wheel Type Pond Waterwheel Ridwan, Ridwan; Irawan, Rudi
Teknobiz : Jurnal Ilmiah Program Studi Magister Teknik Mesin Vol. 15 No. 3 (2025): Teknobiz
Publisher : Magister Teknik Mesin Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/86egyt94

Abstract

Aerator is a very important equipment in fish farming. The availability of sufficient oxygen in the water greatly affects the growth of fish or shrimp in pond cultivation. Besides that, the use of energy in generating or producing dissolved oxygen in ponds cultivation must be as efficient as possible decreasing that cost perations. The purpose of this research was to obtain the best performance of the Paddle wheel type aerator to increasing the dissolved oxygen in pond water with the lowest energy consumption used in producing or increasing the dissolved oxygen in ponds cultivation. The research method was experimentally for the aerator paddle wheel type with eight blades, and 16 holes on each the blade. There were four variations of rotation on the blades or rotors, namely: Rotation per minutes (RPM): 80, 100, 120, and 140. The results of the research showed that at a rotation speed of 120 RPM it provided the most optimal performance, the most efficient use of energy to increase the dissolved oxygen content compared the others RPM.
Optimization of Dehumidification Air Flow Distribution in Temulawak Tray Dryer with Computational Fluid Dynamics Ridwan; Farul Apriansa; Rudi Irawan
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi Volume 6 Nomor 2 Tahun 2024
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v6i2.6664

Abstract

Temulawak (Curcuma xanthorrhiza Roxb.), a member of the Zingiberaceae family, has long been recognized as a medicinal plant with a moisture content approximately 80-90%. The high moisture content of temulawak renders it challenging to store for extended periods without drying. Temulawak is susceptible to heat damage due to the potential for thermal degradation of its internal components. Accordingly, it can be concluded that low-temperature and low-air-humidity drying conditions are required. Furthermore, one of the most suitable methods is the use of a dryer that incorporates a dehumidification process. The objective of this research is to develop a temulawak dryer design and simulation variations of the incoming velocity of air flow to obtain the most optimal drying chamber by incorporating a vertical airflow channel. A design and simulation for a temulawak dryer were created using the 2022 version of SolidWorks software (flow simulation modul). The design started from drawing two-dimension, then three-dimension, and determining boundary condition and meshing. A fluid temperature of 35.7°C and a relative humidity (RH) of 22% were used to model the drying process at varying airflow velocities of 1.5 m/s, 2 m/s, and 2.5 m/s. The drying chamber, with dimensions of 676 mm x 406 mm and height of 806 mm, was designed using the type AISI 304 and achieved the most optimal airflow distribution results at a velocity of 2.5 m/s, exhibiting a relatively higher fluid temperature than the other two airflow velocity variation.
Effectiveness of Green Tea Extract in Maintaining Viability of Avulsed Tooth Fibroblasts in Rats Rahmawan, Dzanuar; Fharadiba, Alfinta Azzahra; Irawan, Rudi; Pertami, Sawitri Dwi Indah
Insisiva Dental Journal: Majalah Kedokteran Gigi Insisiva Vol. 15 No. 1 (2026): May
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/di.v15i1.27541

Abstract

Tooth avulsion represents a severe traumatic dental injury in which a tooth is forcibly expelled from its alveolar socket, potentially resulting in significant damage to the surrounding periodontal structures. The success of replantation procedures is primarily determined by the condition and survivability of periodontal ligament (PDL) fibroblast cells. To maintain cellular integrity before replantation, the use of an appropriate storage medium is essential. Green tea (Camellia sinensis) is a herbal plant rich in flavonoid compounds that possess antioxidant and tissue-regenerative capabilities, particularly in stimulating fibroblast proliferation. A concentration of 70% green tea extract has been identified as the most beneficial for promoting wound recovery. This investigation sought to assess how effectively green tea extract could sustain fibroblast cell viability obtained from avulsed teeth of male Wistar rats. A total of thirty-six teeth harvested from male Wistar rats were allocated into one control group and two experimental groups, each subsequently subdivided based on immersion duration of 30 and 60 minutes. PDL-derived fibroblast cells were obtained through versene-trypsin isolation, followed by staining using 0.4% trypan blue solution and cell counting via hemocytometer under light microscopy. Results demonstrated that 30-minute immersion in 70% green tea extract yielded the highest fibroblast viability (90.35%; p = 0.004) relative to all other groups. Although both 70% and 100% concentrations successfully maintained fibroblast viability, the 70% concentration proved more effective across both observation time points.
Co-Authors -, Joko Abdul Rahman Afrizal Riyantono Afzeri Tamsir Afzeri Tamsir Afzeri Tamsir Afzeri Tamsir Afzeri Tamsir Afzeri Tamsir AGUNG PRATAMA, RIZKY Agus Pahrudin Ahmad Firdaus A. Zaidi Ahmad Firdaus A. Zaidi Ahmad Firdaus A. Zaidi Ahmad Rofii Ahmad Suhaedi Al - Farid, Ahlan Husaini Alfasha, Muhammad Zidan Alhuda, M Raffi Anggil Viyantini Kuswanto Anindya, R.A.Sekar Ciptaning Apriansa, Farul Ardiansyah, Irwan Ari Legowo Ari Legowo Ariandi, Rian Dwi Arief Goeritno Arwin Arwin Azama, Irham Muhammad Baharudin Budiman Busono Soerowirdjo Chayati, Nurul Cokorda Prapti Mahandari Dedy Haryanto Dena Hendriana Desilia Purnama Dewi Dian Wulandari Eko Hadi Purwanto Fadillah, Afan Farul Apriansa Fharadiba, Alfinta Azzahra Firmansyah, Riyan Harjoyo Harjoyo Ida Ayu Putu Sri Widnyani Jeremi Badar, Johanes K, G.B Heru Kasutjianingati Kasutjianingati, Kasutjianingati Khairunnisa Khairunnisa Kuncoro, Heru Luluk Dianarini Mansurdin, Mansurdin Mohamad Yamin Muamar Al Qadri Muhamad Lutfi Mulya Juarsa Nor Hilmi Mohamad Nor Hilmi Mohamad Nur‘ainingsih, Dyah Oktaviandi, Ryan Pertami, Sawitri Dwi Indah Putri Aulia Raden Mohamad Herdian Bhakti Rahmawan, Dzanuar Rasyid Habibi, Said Ratika Dewi Ridwan Ridwan Ridwan Ridwan, Ridwan Ritzkal, Ritzkal Riza Muhida Roy Waluyo Rudianto, Haris Rulhendri Rulhendri Siti Zulaiha Suharto Suharto Syaiful Syaiful Sya’bani, Rafi Fajar Syihabuddin Syihabuddin Tri Wijaya Putra, Doni Utami, Priska Restu Wahyu Caesarendra Wicaksono, Nugroho Adi Widyastuti Widyastuti Winda Astuti Winda Astuti Yayan M.A Nurbayan Zulfi Diane Zaini