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All Journal KAPAL Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Jurnal Program Magister Ilmu Sosial Universitas Tanjungpura Journal of Environmental Engineering and Sustainable Technology Jurnal Dampak AKSIOLOGIYA : Jurnal Pengabdian Kepada Masyarakat Majalah Ilmiah Pengkajian Industri Jurnal Teknik Lingkungan Janaka : Jurnal Pengabdian Masyarakat Proceeding of International Conference on Science, Education, and Technology Jurnal Teknik Sipil Journal of Fisheries & Marine Ta'lim Ta'lim : Jurnal Multidisiplin Ilmu
Sukandar Sukandar
Bandung Institute of Technology
Religion Aerospace Engineering Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mechanical Engineering Social Sciences Transportation

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Rancang Bangun Kapal Klasik Untuk Ekowisata di Perairan Terbatas Sunardi, Sunardi; Sambah, Abu Bakar; sukandar, sukandar; sulkhani, eko; Tumulyadi, Agus
Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Vol 15, No 3 (2018): Oktober
Publisher : Department of Naval Architecture - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1199.65 KB) | DOI: 10.14710/kapal.v15i3.20735

Abstract

Perkembangan ekowisata bahari mengalami kemajuan yang sangat pesat selama beberapa tahun terakhir dan memberikan manfaat yang besar untuk masyarakat pesisir dan nelayan. Kebutuhan sarana transportasi berupa kapal wisata untuk menunjang kegiatan wisata bahari masih sangat besar dan sangat berpotensi untuk ditingkatkan. Kapal wisata untuk kebutuhan wisata yang ada saat ini adalah kapal nelayan yang masih terkesan kurang menarik dan tidak dilengkapai dengan sarana keselamatan ataupun akomodasi yang memadahi. Penelitian ini mencoba untuk mengembangkan desain kapal kayu klasik yang sesuai untuk wisata di perairan terbatas dengan penumpang sampai dengan 5 penumpang. Penelitian ini menerapkan pendekatan perbandingan dengan kapal pembanding sebagai sebagai pengujian desainnya, serta menerapkan parametric design, yaitu  suatu metode yang digunakan untuk mengotimalkan desain suatu kapal dengan mempertimbangkan semua variabel seperti ukuran kapal, kecepatan kapal, kemampuan mesin dan power mesin yang dibutuhkan untuk menggerakkan kapal. Batasan desain yang digunakan adalah kapal harus dapat diproduksi oleh galangan kapal tradisional dengan biaya produksi yang murah. Hasil penelitian ini menghasilkan desain kapan serta fisik kapal klasik secara utuh dengan materail kayu dan mampu melaju dengan kecepatan 5 knot dengan menggunakan mesin 4HP (Horse Power). Hasil desain dan uji coba berlayar terhadap kapal yang dibuat menunjukkan stabilitas yang sangat bagus untuk beroperasi di perairan bebas
UJI PENDAHULUAN PEMANFAATAN LIMBAH SLUDGE CPO (CRUDE PALM OIL) SEBAGAI BAHAN BAKU RDF (REFUSED DERIVED FUEL) Fitriany, Inna Arumsari; Sukandar, Sukandar
Jurnal Teknik Lingkungan Vol 15, No 2 (2009)
Publisher : ITB Journal Publisher, LPPM ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (347.327 KB) | DOI: 10.5614/jtl.2009.15.2.5

Abstract

Abstrak : Indonesia merupakan negara dengan pertumbuhan industri minyak kelapa sawit terbesar, bahkan akan menjadi produsen utama dunia 2010, yang akan memiliki sumber daya yang belum tersentuh lebih dari 50 juta ton pertahun. Oleh karena itu, Indonesia memiliki potensi yang sangat besar dalam memanfaatkan produk samping biomassa berupa limbah sludge dari sisa pengolahan kelapa sawit yaitu sebagai sumber energi dalam bentuk briket arang. Kebun dan pabrik kelapa sawit menghasilkan limbah padat dan cair dalam jumlah besar yang belum dimanfaatkan secara optimal. Pertumbuhan produksi CPO (Crude Palm Oil) sebesar 5-6 % per tahun berarti pula peningkatan ketersediaan produk samping berupa limbah sludge dari sisa pengolahan kelapa sawit. Pertumbuhan areal kebun kelapa sawit di Indonesia akan terus meningkat sehingga meningkatkan sumber produk samping berupa limbah sludge dari sisa pengolahan kelapa sawit. Ini berarti bahan baku untuk membuat bio-bahan bakar akan tersedia dalam jumlah yang lebih besar. Dari produksi minyak kelapa sawit tahun 2004 dapat diperkirakan produksi POME (Palm Oil Mill Effluent) sebanyak 32.257 ? 37.633 juta ton. Jumlah ini sangat melimpah dan berpotensi besar sebagai sumber energy terbarukan. Oleh karena itu, Indonesia memiliki potensi besar untuk memanfaatkan produk samping dari kelapa sawit sebagai sumber energi terbarukan. Jenis-jenis sludge yang dapat termanfaatkan yaitu biosludge, spent bleaching earth, first aid cake, glycerin, dan scum cake. Pada penelitian ini dilakukan variasi pencampuran untuk mencapai nilai kalor yang optimum.Abstract: Indonesia is a country with the growth of the largest palm oil industry, even going to be a major world producer in 2010, which will have the untapped resources of more than 50 million tons per year. Therefore, Indonesia has huge potential in using biomass byproducts from the remaining sludge in the form of palm oil as a source of energy in the form of charcoal briquettes. Gardens and palm oil mills produce solid and liquid wastes in large numbers that have not been used optimally. Production growth of CPO (Crude Palm Oil) at 5-6% per year will also mean increasing the availability of sludge byproduct from the remaining mills. The growth of oil palm plantation acreage in Indonesia will continue to increase thereby increasing source of sludge byproduct from the remaining mills. This means the raw material for making bio-fuels will be available in larger quantities. From the production of palm oil production in 2004 can be estimated POME (Palm Oil Mill Effluent) counted 32.257-37.633 million tons. This amount is very gorgeous and huge potential as a source of renewable energy. Therefore, Indonesia has great potential to utilize by products from the oil palm as a source of renewable energy. The types of sludge that can be utilized ie biosludge, spent bleaching earth, first aid cake, glycerin, and Scum cake. In this study the variation of mixing has been  done to achieve optimum heating value. Key words: biomass, sludge, heating value, crude palm oil
IMPLEMENTASI INSTRUKSI PRESIDEN RI NO. 12 TAHUN 2011 TENTANG PELAKSANAAN PENCEGAHAN PEMBERANTASAN PENYALAHGUNAAN DAN PEREDARAN GELAP NARKOBA (P4GN) (STUDI KASUS PADA SEKOLAH MENENGAH ATAS NEGERI 6 KECAMATAN PONTIANAK TIMU Sukandar, Sukandar
JPMIS Ilmu Administrasi Negara
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (327.771 KB)

Abstract

Hasil survey nasional yang dilakukan oleh Badan Narkotika Nasional pada tahun 2008 menunjukkan terjadinya peningkatan jumlah penyalahguna narkoba di Indonesia yakni 3.362.519 orang atau tingkat prevalensinya meningkat dari 1,75 % pada tahun 2004 menjadi 1,9 % dari total populasi. Jumlah penyalahguna tersebut dipetakan sebanyak 1.355.050 orang dari kalangan pelajar dan mahasiswa. Kota Pontianak menduduki peringkat ke-1 diantara Kabupaten/Kota yang ada di Provinsi Kalimantan Barat. Dari 62 kasus yang terjadi di Kota Pontianak pada tahun 2010 sebanyak 36 kasus terjadi di Kecamatan Pontianak Timur. Salah satu upaya pemerintah untuk mengatasi penyalahgunaan dan peredaran gelap narkoba yakni dengan menerbitkan dan mengimplementasikan Inpres No. 12 Tahun 2011. Penelitian ini menggunakan metode kualitatif. Desain penelitian ini menggunakan studi kasus. Sumber informasi adalah guru BK, siswa SMA N 6, kader anti narkoba, Kepala Sekolah, Kepala BNN Kota Pontianak, Kasi Pencegahan BNN Kota Pontianak. Proses implementasi Inpres No. 12 Tahun 2011 belum sepenuhnya terlaksana dengan baik. Peran guru Bimbingan Konseling (BK) yang kurang maksimal dan ketersediaan sarana informasi yang berupa leaflet, poster serta buku petunjuk P4GN sangat terbatas menyebabkan rendahnya pemahaman siswa tentang bahaya penyalahgunaan dan peredaran gelap narkoba. Disamping itu terdapat faktor penghambat dalam memberikan pemahaman kepada siswa yaitu faktor komunikasi, sosialisasi kebijakan ini belum terlaksana secara intensif dan merata di semua sekolah, faktor sumber daya, jumlah tenaga penyuluh, dana dan sarana prasarana masih sangat terbatas tidak sebanding dengan jumlah sekolah yang ada di Kota Pontianak, faktor disposisi, sikap dan motivasi petugas penyuluh lapangan masih rendah dimana intensitas sosialisasi masih kurang, faktor struktur birokrasi, struktur birokrasi yang timpang dan SOP yang menimbulkan multi tafsir. Kata Kunci : Inpres No. 12 Tahun 2011, Implementasi.
Masyarakat Mantap Qurotul Aini, Siti Maryam; Sukandar, Sukandar; Umami, Hafidul
Janaka, Jurnal Pengabdian Masyarakat Vol 2 No 2 (2020): May 2020
Publisher : LP3M STAI Darussalam Krempyang Nganjuk

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29062/janaka.v2i2.207

Abstract

The role and function of the mosque in rural Takmir often still dwell on the management and service, has not touched on the empowerment efforts of pilgrims. Takmir Mosque has the opportunity to develop community based education. In this case the role of the college in the mentoring of the mosque Takmir indispensable. This mentoring uses an ABCD (asset based community Development) approach conducted in Jatipunggur Lengkong Nganjuk village. The result of mentoring managed to realize community based education in the form of empowering the mosque Takmir to build worshippers in terms of the care of the body and to overcome femininity problems. This achievement can be achieved because the process of mentoring from the stage of social analysis, planning, implementation and evaluation is done with all the mosque stakeholders. Takmir Mosque managed to get mentoring to organize community based education by involving administrators, village apparatus and religious and community leaders.
Masyarakat Mantap Qurotul Aini, Siti Maryam; Sukandar, Sukandar; Umami, Hafidul
Janaka, Jurnal Pengabdian Masyarakat Vol 2 No 2 (2020): May 2020
Publisher : LP3M STAI Darussalam Krempyang Nganjuk

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29062/janaka.v2i2.207

Abstract

The role and function of the mosque in rural Takmir often still dwell on the management and service, has not touched on the empowerment efforts of pilgrims. Takmir Mosque has the opportunity to develop community based education. In this case the role of the college in the mentoring of the mosque Takmir indispensable. This mentoring uses an ABCD (asset based community Development) approach conducted in Jatipunggur Lengkong Nganjuk village. The result of mentoring managed to realize community based education in the form of empowering the mosque Takmir to build worshippers in terms of the care of the body and to overcome femininity problems. This achievement can be achieved because the process of mentoring from the stage of social analysis, planning, implementation and evaluation is done with all the mosque stakeholders. Takmir Mosque managed to get mentoring to organize community based education by involving administrators, village apparatus and religious and community leaders.
FAILURE ANALYSIS ON SLINGER DISK PIPE OF PURIFIED TEREPHTALIC ACID (PTA) VESSEL Sukandar, Sukandar; Triwibowo, Triwibowo; Heryana, Yana
Majalah Ilmiah Pengkajian Industri Vol. 14 No. 2 (2020): Majalah Ilmiah Pengkajian Industri
Publisher : Deputi TIRBR-BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/mipi.v14i2.4027

Abstract

Slinger disk pipe is a rotary part of PTA vessel with function as anti-fog by swinging hot water to the shell wall to remove solid PTA at the shell wall. Failure took place on this slinger disk pipe. The purpose of failure analysis is to find the root cause of failure. Methods conducted in this failure analysis are examination and testing of fractography, metallography, chemical composition, hardness, and calculation of bending stress. Examination on the fracture surface by fractographic method revealed fatigue fracture with the presence of multiple beachmarks. The position of those multiple beachmarks gave indication of alternation rotation of slinger disk pipe. Examination by metallographic method revealed that initial cracks initiated from heat affected zone of pipe and strengthening plates weld joint. However, result of chemical composition examination and hardness test showed that material of slinger disk pipe were in accordance with lean duplex 2205. Calculation of bending stress gave supporting data of various load effects to slinger disk pipe. Therefore, failure of the slinger disk pipe was caused by fatigue fracture which were initiated from head affected zone of pipe and strengthening plates weld joint.
THE CHARACTERISTICS OF SHRIMP FISHERIES IN KOTABARU, SOUTH KALIMANTAN, INDONESIA Harlyan, Ledhyane Ika; Setyohadi, Daduk; Tumulyadi, Agus; Sukandar, Sukandar; Maulana, Almaas Zain; Lathif, Adib Hisyam; Fanani, Zainal
Journal of Environmental Engineering and Sustainable Technology Vol 11, No 02 (2024)
Publisher : Directorate of Research and Community Service (DRPM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jeest.2024.011.02.5

Abstract

The shrimp fishery in Kotabaru, South Kalimantan, is a small-scale fishery that supplies raw materials to PT. Sekar Laut, Tbk, a company specializing in shrimp cracker production for the global market. Despite its significance, limited research has been conducted on the sustainability of this fishery. This study aims to analyze the key characteristics of the shrimp fishery in Kotabaru waters. Data were collected from January to August 2024 in Kotabaru, South Kalimantan, and subjected to various analyses, including species composition, length-weight relationships for several shrimp species, and identification of shrimp fishing grounds. The results reveal that banana shrimp and yellow shrimp are the predominant species within the catch, both exhibiting negative allometric growth patterns. The fishery’s most productive fishing location is identified in Pantai Village, highlighting this area as a potential focus for sustainable management initiatives. These findings underscore the need for ongoing monitoring and targeted management practices to promote the long-term sustainability of the shrimp fishery in Kotabaru.
Development of Problem-Based Learning Teaching Materials on Heat and Temperature to Improve High School Students' Critical and Creative Thinking Skills Sukandar, Sukandar; Rusilowati, Ani; Wahyudin, Agus
Proceedings of International Conference on Science, Education, and Technology Vol. 11 (2025)
Publisher : Universitas Negeri Semarang

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

Abstract

Critical and creative thinking skills are part of the High-Order Thinking Skills required by the Independent Curriculum and 21st century education. It is hoped that students will be able to analyze, evaluate, and create creative solutions in learning, especially in science subjects at the high school level. The purpose of this study is to produce problem-based learning tools on temperature and heat materials to improve the critical and creative thinking skills of valid high school students, to find out the practicality and effectiveness of problem-based learning tools on temperature and heat materials to improve the critical thinking and creative thinking skills of high school students. This research is development research. Data collection through tests, observations, questionnaires and documentation. The development model used is 3-D (Define, Design, Develop) which includes the stages of definition, design, and development. The tools developed consist of syllabuses, lesson plans, worksheets, student teaching materials, and learning outcome tests. The trial was carried out at SMA Negeri 1 Kudus in the experimental class and the control class. Validation by three validators showed an average score: 3.51 syllabus; Learning Implementation Plan 3.73; student worksheet 3.73; Student Achievement 3.54; Critical Thinking Observation Sheet 3.71; and creativity 3.67 out of a maximum score of 4. The learning outcome test is declared valid, balanced in difficulty, well distinguished, and reliable. Practicality is shown from the teacher's response (average 4.60) and the teacher's ability to manage learning (average 4.59). Effectiveness was shown by an increase in the learning outcomes of experimental students, critical thinking skills by 79%, and creativity by 54%. These devices are proven to be valid, practical, and effective.
Characteristics of Fly Ash and Bottom Ash from Incinerators at Landfill Sites Azhra Amanda, Tiffany; Chaerul, Mochammad; Sukandar, Sukandar
Dampak Vol. 22 No. 2 (2025)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/dampak.22.2.1-8.2025

Abstract

Waste management in Indonesia, especially in big cities, faces a big challenge as the volume of waste continues to increase every year. One of the technologies used to address this problem is incineration, which is the process of burning waste to reduce its volume and generate energy. However, this process produces residues in the form of fly ash and bottom ash (FABA), which contain harmful heavy metals such as Zn, Cu, Cr, Ba, and Ni. If not managed properly, these residues can pollute the environment because they are difficult to decompose and are potentially harmful to human health and ecosystems. This study aims to analyze the physical and chemical properties of FABA to determine its potential utilization. The results showed that fly ash has a finer particle size with a higher density than bottom ash which has coarser and larger particles. Based on ASTM C618 standard, FABA belongs to class C category, which shows SiO2 + Al2O3 + Fe2O3 > 50% content > 50%, and CaO content > 15%. FABA has the potential to be utilized in construction, where fly ash can be used as a partial substitute for cement, while bottom ash can replace sand. The utilization of FABA enables the production of environmentally friendly construction materials, such as rosters, bricks, and paving blocks, which are the result of recycling residues. Thus, the utilization of FABA also reduces the amount of residue generated by the incineration process and reduces dependence on natural raw materials, supporting the creation of a more sustainable construction industry. Keyword: fly ash, bottom ash, physical, chemical, recycling
Seagrass Ecosystem Assesment for Dugong Conservation: Integrating Anthropogenic Activites and Oceanographic Parameters in East Java’s Coastal Waters Dewi, Citra Satrya Utama; Ciptadi, Gatot; Wahyudi, Slamet; Wiadnya , Dewa Gede Raka; Semedi, Bambang; Sukandar, Sukandar; Isdianto, Andik; Sunuddin, Adriani; Herandarudewi, Sekar Mira; Tarno, Hagus
Jurnal Ilmiah Perikanan dan Kelautan Vol. 17 No. 3 (2025): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v17i3.71841

Abstract

Graphical Abstract   Highlight Research 1. The study successfully identified the utilization of coastal and marine areas within the research site. 2. Oceanographic parameters across the study area have been analyzed, providing insights into variations in environmental conditions favoring seagrass ecosystem resilience. 3. The structure of seagrass vegetation has been thoroughly observed, revealing differences in species composition, density, and coverage. 4. Furthermore, the study establishes the connectivity between coastal and marine spatial utilization, oceanographic factors, and seagrass ecosystem dynamics, highlighting their interdependent relationships.     Abstract This study aims to assess the ecological status of seagrass meadows and their relationship with dugong (Dugong dugon) habitats across four distinct ecological regions in East Java, Indonesia. Field assessments were conducted to evaluate seagrass community structure, oceanographic parameters, and the intensity of human activities. Seagrass distribution was mapped using Sentinel-2A satellite imagery, while seagrass health was evaluated through the Seagrass Ecological Quality Index (SEQI) and Importance Value Index (IVI). Statistical analyses, including Analysis of Variance (ANOVA) and Principal Component Analysis (PCA), were employed to identify significant differences and key environmental drivers. The results revealed marked spatial variation in oceanographic characteristics and seagrass coverage (p < 0.05). PCA showed that anthropogenic factors—particularly marine space utilization such as aquaculture and coastal development—were major contributors to seagrass degradation. Elevated nutrient concentrations were also associated with declining seagrass health, indicating land-based pollution as a dominant stressor. These findings underline the urgent need for integrated coastal zone management. Strengthening conservation policies, reducing terrestrial runoff, and implementing sustainable marine spatial planning are critical to safeguard seagrass ecosystems and ensure the long-term survival of dugong populations in Indonesian waters.
Co-Authors Abu Bakar Sambah, Abu Bakar Adriani Sunuddin Agus Wahyudin Anam, C Andik Isdianto Ani Rusilowati Arifin, Moh Aziz Arofik, Slamet Ating Yuniarti Azhra Amanda, Tiffany Bambang Semedi Ch, Ah. Shofiyyulloh Daduk Setyohadi Dewa Gede Raka Wiadnya Dewi, Citra Satrya Utama Eko Sulkhani, Eko Eldina Fatimah Endang Yuli Herawati Fariqoini, Azimatul Fitri, Basit Misbachul Fitriany, Inna Arumsari Gatot Ciptadi Hagus Tarno Happy Nursyam Hariati, Anik Martinah Herandarudewi, Sekar Mira Heryana, Yana Imanan, Imam Mahfudz Lathif, Adib Hisyam Ledhyane Ika Harlyan Marhendra, A.P.W Masimin Masimin Maulana, Almaas Zain Mochammad Chaerul, Mochammad Muammar Kadhafi Nisak, Khoirotun Qurotul Aini, Siti Maryam Shofiyyulloh Ch, Ah. Slamet Wahyudi Sunardi Sunardi Triwibowo Triwibowo Tumulyadi, Agus Ubaidillah, Burhanudin Umami, Hafidul Umami, Hafidul Wiadnya , Dewa Gede Raka Zainal Fanani