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All Journal Jurnal Silvikultur Tropika (JST) Jurnal Penelitian Hutan dan Konservasi Alam Jurnal Penelitian Hutan Tanaman Syntax Literate: Jurnal Ilmiah Indonesia NUSANTARA : Jurnal Ilmu Pengetahuan Sosial JURNAL CRANKSHAFT STEAM Engineering : Journal of Science, Technology, Education And Mechanical Engineering Jurnal Maenpo : Jurnal Pendidikan Jasmani Kesehatan dan Rekreasi Edu Sportivo: Indonesian Journal of Physical Education Bima Loka: Journal of Physical Education Indonesian Journal of Sport Management Jurnal Pedagogi Olahraga dan Kesehatan Public Health and Safety International Journal (PHASIJ) Engineering and Technology International Journal (EATIJ) Jurnal Pendidikan Indonesia (Japendi) AMMA : Jurnal Pengabdian Masyarakat
Cahyo Wibowo
Departemen Silvikultur, Fakultas Kehutanan Institut Pertanian Bogor
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Pembuatan Compressed Natural Gas (CNG) Pressure Reduction System (PRS) Kapasitas 15 NM3/H Wibowo, Cahyo; Dewadi, Fathan Mubina; Muryanto, Muryanto; Setiawan, Dibyo
Engineering and Technology International Journal Vol 6 No 01 (2024): Engineering and Technology International Journal (EATIJ)
Publisher : YCMM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55642/eatij.v6i01.633

Abstract

Compressed Natural Gas atau CNG merupakan gas alam yang dikompresi menjadi tekanan tinggi hingga 250 bar, tekanan pengisian tergantung dari kemampuan mesin kompresi dan kemampuan tabung penampung. Gas alam digunakan sebagai bahan bakar alternatif yang digunakan untuk mengkonversi penggunaan gas LPG dan bahan bakar minyak lainnya yang ketersediaannya saat ini sudah mulai berkurang akibat konsumsi yang sangat besar dan harga yang lebih mahal. Untuk mengalirkan gas alam dari tabung penyimpan ke pelanggan diperlukan alat penurun tekanan yang itu PRS. Pressure Reduction System (PRS) adalah alat yang digunakan untuk menyalurkan gas alam bertekanan tinggi maksimum 250 bar menjadi tekanan yang diperlukan oleh pelanggan atau setara dengan tekanan gas LPG 12 dan 15 kg dengan jalan memanaskan gas selanjutnya menurunkan atau mereduksi tekanan sesuai dengan tekanan yang diperlukan. Dalam pembuatan diperlukan perhitungan empiris dan teori terhadap laju aliran massa, besar panas yang diperlukan, media yang digunakan, jenis material, teknik pembuatan dan biaya.
Analisis Oli Hasil Destilasi (Filtrasi Arang Aktif) Terhadap Performa Motor Diesel Muryanto, M; Wibowo, Cahyo; Dewadi, Fathan Mubina
Engineering and Technology International Journal Vol 5 No 02 (2023): Engineering and Technology International Journal (EATIJ)
Publisher : YCMM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55642/eatij.v5i02.722

Abstract

Banyaknya minyak pelumas bekas yang di hasilkan dari kendaraan sering kali menimbulkan permasalahan baru. Minyak pelumas bekas hasil pembakaran bersifat asam dan korosif, deposit, dan logam berat yang bersifat karsinogenik.. Untuk mengatasi hal tersebut salah satunya adalah dengan cara memanfaatkan oli bekas sebagai bahan bakar pada mesin diesel dengan proses yang mudah dan murah. Penelitian bertujuan untuk mengevaluasi performa mesin untuk mengukur pengaruh penggunaan bahan bakar alternative hasil destilasi dari limbah minyak pelumas sebagai campuran bahan bakar dexlite dengan menggunakan variasi campuran 50%, 30% dan 10% minyak diesel dengan Dexlite. Berdasarkan hasilnya nilai rata-rata torsi pada penggunaan minyak diesel 50% dan Dexlite 50% adalah 8,69 Nm lebih rendah dari pada bahan bakar campuran yang lain. Sedangkan daya pada penggunaan minyak diesel 50% dan Dexlite 50% dan penggunaan minyak diesel 100% mempunyai daya rata-rata yang sama yaitu 1,37 KW, hal ini menunjukan daya yang lebih kecil dibandikan dengan penggunaan campuran yang lain. Untuk konsumsi bahan bakar spesifik pada minyak diesel 50% dan Dexlite 50% mempunyai nilai rata-rata 0,27 kg/Kwh, minyak diesel 30% dan Dexlite 70% sfc rata-rata sebesar 0,28 kg/Kwh, sedangkan untuk minyak diesel 10% dan Dexlite 90% serta penggunaan minyak diesel 100% mempunyai sfc rata-rata yang sama yaitu sebesar 0,26%.
Instalasi Dan Commisioning Compressed Natural Gas Compressor Type P95B 2BVTN3 Kapasitas 990 SM3/H Wibowo, Cahyo; Siahaan, Herbert Hasudungan; T, Ojakma Sihar Panaili
Engineering and Technology International Journal Vol 6 No 02 (2024): Engineering and Technology International Journal (EATIJ)
Publisher : YCMM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55642/eatij.v6i02.746

Abstract

Pada saat ini bahan bakar bukan yang dihasilkan dari bumi sudah sangat menipis dan emisi gas yang dihasilkan oleh bahan bakar sangat mempengarhui terjadinya peningkatan pemanasan global. Untuk itu diperlukan substitusi bahan bakar yang lebih ramah lingkungan dengan emisi gas sekecil mungkin. Natural gas adalah bahan bakar yang saat ini digunakan sebagai salah satu alternatif pengganti bahan bakar minyak. Pengelolaan gas alam memerlukan berbagai sistem tata Kelola antara lain pendistribusian gas menggunakan sistem virtual gas paping atau disebut dengan gas alam terkompresi. Gas tersebut didistribusikan menggunakan tangki bertekanan tinggi dari stasiun pengisian gas alam ke masing-masing pengguna atau pelanggan. Salah satu faktor yang memenuhi kriteria distribusi gas adalah tekanan gas yabg didistribusikan ke pengguna, tekanan gas tersebut harus mampu disimpan pada tekanan tinggi yang pada umumnya berkisar antara 200 bar sampai 250 bar. Untuk mencapai tekanan tersebut diperlukan gas kompresor yang mampu menekan gas hingga 250 bar yaitu piston double acting. Untuk mendapatkan mesin yang mampu melakukan kompresi sesuai dengan karakteristik yang diperlukan maka penyesuaikan dilakukan dalam perencanaan, pemilihan, design, instalasi, commissioning yang baik agar kapasitas yang diisyaratkan dapat terpenuhi dengan baik.
Analysis of the relationship between emotional quotient and physical activities on fundamental motor skills of elementary school Dese, Dennys Christovel; Wibowo, Cahyo
Jurnal Maenpo : Jurnal Pendidikan Jasmani Kesehatan dan Rekreasi Vol 14, No 1 (2024): VOLUME 14 NOMOR 1 TAHUN 2024
Publisher : Universitas Suryakancana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35194/jm.v14i1.4196

Abstract

The significance of emotional quotients (EQ) and physical activities in developing fundamental motor skills in elementary school students was the primary reason for this study. This study analyzes the relationship between EQ and physical activities with fundamental motor skills among elementary school students aged 7-9. The research method employed observational analytics with a cross-sectional approach. The study population consisted of students from Kurma Islamic Elementary School in Salatiga, with a sample of 80 students aged 7-9. Data were collected through questionnaires (EQ), PAQ-C, and performance-based motor skills assessment rubric. Data analysis was conducted using Pearson correlation and linear regression tests. The results showed a significant relationship between EQ and fundamental motor skills. Additionally, there was a significant relationship between physical activities and fundamental motor skills. Regression analysis indicated that EQ and physical activities significantly influenced fundamental motor skills simultaneously. This study reveals that both EQ and physical activities significantly impact fundamental motor skills in elementary school students. The implications of the findings underscore the significance of integrating holistic education programs, incorporating EQ development, and promoting physical activity to support overall motor development and well-being in children.
Evaluation Physical Quality of Eucalyptus Seedlings (Eucalyptus pellita F. Muell) in the BPDAS Citarum-Ciliwung Nursery, Rumpin, West Java Wulandari, Arum Sekar; Wibowo, Cahyo; Fauziah, Nadira Aribah
Journal of Tropical Silviculture Vol. 14 No. 03 (2023): Jurnal Silvikutur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.14.03.250-257

Abstract

Keberhasilan penanaman di lapangan sangat dipengaruhi oleh kualitas bibit yang digunakan. Tujuan penelitian ini adalah mengevaluasi mutu fisik bibit eukaliptus yang diproduksi Pusat Persemaian BPDAS Citarum-Ciliwung berdasarkan SNI 8420:2018. Penilaian mutu bibit eukaliptus dilakukan berdasarkan persyaratan yang tercantum dalam SNI 8420:2018. Hasil evaluasi mutu fisik bibit eukaliptus di Pusat Persemaian BPDAS Citarum-Ciliwung menunjukkan bahwa bibit eukaliptus sudah lulus uji persyaratan umum untuk asal usul benih dan bibit normal (kriteria batang berkayu); dan lulus uji untuk persyaratan khusus. Bibit eukaliptus tidak lulus uji persyaratan umum bibit normal untuk kriteria batang lurus dan bibit sehat. Bibit eukaliptus yang tidak lulus uji, dapat dilakukan uji ulang setelah bibit diseleksi atau perbaikan kualitas bibit. Perbaikan kualitas bibit dapat dilakukan dengan melakukan kegiatan penjarangan secara rutin di persemaian. Kata kunci: asal-usul benih, bibit normal, persyaratan umum, persyaratan khusus, Standar Nasional Indonesia 8420:2018
Integration of the Pancasila student profile in physical education learning Nopiyanto, Yahya Eko; Pujianto, Dian; Maisarah, Ira; Wibowo, Cahyo; Kardi, Ipa Sari
Edu Sportivo: Indonesian Journal of Physical Education Vol. 5 No. 2 (2024): Edu Sportivo: Indonesian Journal of Physical Education
Publisher : UIR Press Bekerjasama dengan International Association of Physical Education and Sports

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/esijope.2024.vol5(2).16879

Abstract

Background: The integration of the Pancasila Student Profile (PSP) in physical education (PE) learning represents a significant endeavour to align educational practices with national values and aspirations. Through rigorous research and thoughtful implementation strategies, educators can harness the transformative potential of PE to cultivate socially responsible citizens who embody the spirit of Pancasila in their actions and interactions within the broader Indonesian society. Research Objectives: The aim of this research is to determine the level of integration of Pancasila student profiles in physical education learning in Bengkulu City. Methods: The quantitative research method was used to achieve this goal. The sample was 432 students whose taken randomly among the elementary school, middle school, and high school. The instrument in this research was a questionnaire. The data was analysed using the mean ideal and the deviation standard ideal. Finding/Results: The integration of the PSP in schools in the city of Bengkulu has four different categories. In the very high category, the frequency is 51; in the high category, the frequency is 301; in the moderate category, the frequency is 78; and in the low category, the frequency is 2. Conclusion: The Pancasila profile of students learning PE in Bengkulu City is well implemented. The novelty of integrating the PSP into PE learning lies in its unique approach to instilling national values and character education in the PE curriculum. This integration aims to encourage holistic student development by combining physical education learning with the values of God Almighty, independence, global diversity, cooperation, critical thinking, and creative thinking, which are the core of the Pancasila student profile.
Phenomenological Study: Recreational Sports in Urban Society Wibowo, Cahyo; Hulu, Alwin Praiman; Dese, Dennys Christovel
Indonesian Journal of Sport Management Vol. 3 No. 2 (2023): Indonesian Journal of Sport Management
Publisher : Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31949/ijsm.v3i2.6978

Abstract

People in the city have unique lifestyles and thoughts. Most people do not have time to do social activities because they are busy with various jobs. Urban people engage in sports activities for several reasons, such as reducing stress caused by their work and building social relationships. This research aims to collect data to provide an overview or confirmation of a concept regarding the phenomenon of recreational sports in the community in the city of Salatiga. Descriptive qualitative with a phenomenological approach. The subjects in this research were the people of Salatiga who played recreational sports. Data was obtained using in-depth interview methods with research subjects. The data analysis technique was carried out using Milles & Huberman; namely, data analysis carried out interactively includes four analysis components: Collection of data obtained from interviews, observations and documentation, Data reduction, Data presentation, and Interesting conclusion. The people of Salatiga City interpret recreational sports very well but still need to improve infrastructure. Recreational sports are a form of social phenomenon in the people of Salatiga city. Become reference material and consideration for maintaining and developing recreational sports for society as a sustainable social phenomenon identity.
A Study on the Analysis of Fundamental Motor Skills and Physical Activity Among Elementary School Students Wibowo, Cahyo
Indonesian Journal of Sport Management Vol. 4 No. 1 (2024): Indonesian Journal of Sport Management
Publisher : Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31949/ijsm.v4i1.8757

Abstract

Background: Elementary school students gross motor skills and physical activity are crucial in shaping healthy lifestyles and children's physical development. Purpose: To describe gross motor skills and physical activity and ascertain the relationship between these variables. Methods: The research design employed in this study is an analytical observational approach utilizing a cross-sectional method. It involved 128 students selected through purposive sampling. The instruments used were (1) a gross motor skills assessment tool with a CVR value of 1, construct validity of 1, and reliability tested via test-retest method yielding α=0.708, and (2) the Physical Activity Questionnaire for Older Children (PAQ-C) with a reliability test result of α=0.84. Data analysis was conducted using descriptive techniques with percentages and Pearson correlation tests. Results: There is a significant relationship between gross motor skills and physical activity variables. The value of (p) is 0.000 < 0.05. The correlation coefficient (r) of 0.682 > 0.176 indicates a strong relationship between the two variables. Conclusion: This study elucidates a significant relationship between gross motor skills and physical activity among elementary school students Implications: These findings provide an essential impetus for teachers and parents to enhance their attention to children's physical fitness. Intervention measures targeting the enhancement of physical activity and the development of gross motor skills should be prioritized.
Pelatihan & Sertifikasi Kompetensi Klaster Servis Sepeda Motor Karburator Untuk Masyarakat Ciwidey Jawa Barat Maldi Subardjah, Adri; Munir Fahmi, Mokhamad; Triyono, Budi; Setiawan, Dibyo; Setiawan, Apri; Sunaryo, Sulistianto; Jumari; Wibowo, Cahyo
AMMA : Jurnal Pengabdian Masyarakat Vol. 3 No. 12 : Januari (2025): AMMA : Jurnal Pengabdian Masyarakat
Publisher : CV. Multi Kreasi Media

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The CSR program is a sustainable commitment ethically, legally, and contributes to improving the quality of life for workers/families, local communities, and society as a whole, such as waste processing, infrastructure development, MSME development, and others. Geo Dipa Energi operates in the field of managing and utilizing geothermal energy for electricity generation. Management is in the Ciwidey area covering 3 villages. The program aims to provide skills, support independence, and open up opportunities to apply for jobs with a skills certificate in the automotive sector. Polban with Public Service Agency status can provide services to the community in the form of providing goods/services in carrying out its activities based on the principles of efficiency and productivity. The method of implementing community service is through financing the Geo Dipa Energi CSR program in collaboration with Polban and LSP TOP. The carburetor motorbike service cluster training and certification includes 22 competency items, 3 batches are implemented, the number of participants is 30, details for each batch consist of 8 days of training, 1 day of simulation, satisfaction survey, registration, online assessment, and 1 day of practical assessment. As a result of the assessment, all participants obtained the title of competent.
Studi rata-rata kecepatan jalan kaki masyarakat kota Salatiga di ruang terbuka publik Wibowo, Cahyo; Putra, Kukuh Pambuka; Maulana, Jon; Antoni, Muhammad Sigit
Jurnal Pedagogi Olahraga dan Kesehatan Vol 6, No 1 (2025)
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jpok.v6i1.22837

Abstract

Abstrak: Jalan kaki merupakan salah satu aktivitas fisik sederhana yang dapat diakses oleh semua kalangan dan memiliki banyak manfaat kesehatan, termasuk meningkatkan kebugaran jasmani dan mengurangi risiko penyakit degeneratif. Penelitian ini bertujuan untuk mengetahui rata-rata kecepatan berjalan masyarakat Kota Salatiga. Metode yang digunakan adalah deskriptif kuantitatif dengan pendekatan observasional, melibatkan 132 responden. Data dikumpulkan melalui survei dan analisis statistik deskriptif. Hasil penelitian menunjukkan bahwa 72,73% responden memiliki kecepatan berjalan tinggi (1,39 m/s ke atas), sedangkan 27,27% berada pada kategori kecepatan sedang (0,12 – 1,38 m/s). Tidak ditemukan responden dengan kecepatan berjalan rendah (0,1 – 0,11 m/s). Tidak ada perbedaan signifikan antara jenis kelamin dalam hal kecepatan berjalan, menunjukkan bahwa faktor utama yang mempengaruhi kecepatan berjalan adalah kondisi fisik, usia, dan cedera. Kesimpulan dari penelitian ini adalah bahwa kecepatan berjalan dapat dijadikan indikator kesehatan, dan aktivitas fisik seperti berjalan kaki berkontribusi positif terhadap kebugaran jasmani serta pengurangan risiko penyakit degeneratif. Masyarakat Salatiga menunjukkan minat yang tinggi terhadap penggunaan ruang publik untuk aktivitas fisik, yang berpotensi mendukung upaya pencegahan penyakit. Implikasi dari penelitian ini adalah perlunya penyediaan dan pengelolaan ruang publik yang mendukung aktivitas fisik untuk meningkatkan kualitas kesehatan masyarakat secara keseluruhan.A Study on the average walking speed of salatiga city residents in public open spacesAbstract: This study aims to determine the average walking speed of Salatiga City residents. The method used is a descriptive quantitative approach with observational techniques involving 132 respondents. Data were collected through surveys and analyzed using descriptive statistical methods. The results indicate that 72.73% of respondents exhibited a high walking speed (1.39 m/s and above), while 27.27% were categorized as having a moderate walking speed (0.12–1.38 m/s). No respondents were found in the low walking speed category (0.1–0.11 m/s). There was no significant difference in walking speed between genders, suggesting that the primary factors influencing walking speed are physical condition, age, and injury. The study concludes that walking speed can serve as an indicator of health, and physical activities such as walking contribute positively to physical fitness and reduce the risk of degenerative diseases. The people of Salatiga demonstrate a high interest in utilizing public spaces for physical activities, which can potentially support disease prevention efforts.
Co-Authors Adri Maldi Subardjah Angkit Kinasih Antoni, Muhammad Sigit Apri Wiyono Arif Budi Setiawan Arum Sekar Wulandari Astriana Baiti Sinaga Atok Subiakto Beatriksan, Yulianus Budi Triyono Dadan Mulyana Danu Danu Dennys Christovel Dese Dewadi, Fathan Faisal Danu Tuheteru Fathan Mubina Dewadi Fauziah, Nadira Aribah Ferdiyansyah, Ferdiyansyah Handy, Rayhan Aliva Vitra Hulu, Alwin Praiman Ipa Sari Kardi Ira Maisarah Irdika Mansur Iskandar Z. Siregar Jumari Kukuh Pambuka Putra KURNIASETIAWATI, ANNISA Maulana, Jon Mubina Dewadi, Fathan Muchamad Arif Al Ardha Muhammad Hasbi Munir Fahmi, Mokhamad Muryanto Muryanto, Muryanto Muryanto, M Noor Farikhah Haneda Nopiyanto, yahya eko Panalili T, Ojakma Sihar Pradibya, Aguch Vergianata Prijanto Pamoengkas Pujianto, Dian Purba, Dolok Putra, Fisika Prasetyo Rinaldi, Kardian Setiawan, Apri setiawan, Dibyo Siahaan, Herbert Hasudungan Sidi, Agam Allende Sri Wilarso Budi Sudarmanti, Rini Suhara, Ade Sukmawati, Dian Sunaryo, Sulistianto Susanti . Syamsudin Ahmad Slamet Telaumbanua, Observasi S. J Tingsapat, Suthana Tumanggor, Ojakma Sihar Panaili Widyaningtyas, Rut Wiwi Wildasari Yan Eka Prasetyawati