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All Journal ILMU KELAUTAN: Indonesian Journal of Marine Sciences BULETIN OSEANOGRAFI MARINA Jurnal Geodesi Undip Jurnal Desiminasi Teknologi Jurnal Teknik Sipil Seminar Nasional Lahan Suboptimal Journal Multicultural of Islamic Education Multidiciplinary Output Research for Actual and International Issue (Morfai Journal) Jurnal Riset Inossa : Media Hasil Riset Pemerintahan, Ekonomi dan Sumber Daya Alam JURNAL HUTAN TROPIS JOURNAL OF WETLANDS ENVIRONMENTAL MANAGEMENT El-Mal: Jurnal Kajian Ekonomi & Bisnis Islam Jurnal Hukum Islam Reflection: Islamic Education Journal Journal of Ekonomics, Finance, and Management Studies Mutiara Pendidikan dan Olahraga
Muhammad Helmi
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Religion Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Social Sciences Other

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PEMANFAATAN LIMBAH ABU BATU BARA SEBAGAI FILLER PADA LATASTON LAPIS AUS (HRS-WC) Rifanie Gazalie; Muhammad Fauzi; Hawinuti, Riska; Muhammad Helmi
Jurnal Teknik Sipil Vol 7 No 1 (2023): Jurnal Gradasi Teknik Sipil - Juni 2023
Publisher : P3M Politeknik Negeri Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31961/gradasi.v7i1.1434

Abstract

Penggunaan batu bara sebagai sumber energi industri dan pembangkit listrik selain menghasilkan limbah buangan yang membutuhkan ruang untuk penimbunan, juga memunculkan kemungkinan pencemaran lingkungan. Limbah yang dihasilkan oleh proses pembakaran batu bara berupa Fly Ash dan Bottom Ash (FABA) dimana menurut PP Nomor 22 Tahun 2021 tentang Penyelenggaraan Perlindungan dan Pengelolaan Lingkungan Hidup yang menyatakan bahwa FABA sebagai hasil akhir dari pembakaran batu bara, bukan lagi termasuk kategori limbah B3, membuka kesempatan yang luas untuk pemanfaatan FABA dari hanya limbah, menjadi bahan bangunan, subtitusi semen, bahan additif untuk campuran filler pada perkerasan lentur serta restorasi tambang. Tujuan penelitian ini adalah untuk mengetahui perubahan akibat pencampuran bottom ash sebagai filler terhadap  sifat-sifat aspal pada campuran beraspal HRS-WC. Pengujian material yang dilakukan adalah pengujian agregat, pengujian aspal dan pengujian campuran beraspal panas dengan alat Marshall menurut Spesifikasi Umum Bina Marga 2018 revisi 2. Pengujian yang dilakukan telah memenuhi spesifikasi dengan proporsi agregat campuran agregat kasar 13%, agregat sedang 0%, abu batu 71%, pasir 14% dan filler (berupa bottom ash) 2% yang menghasilkan kadar aspal optimum 6,90% dengan nilai kadar aspal efektif sebesar 6,20%; VIM sebesar 3,758%; VMA sebesar 17,325%; VFB sebesar 78,421%, Stabilitas Marshall 876,991 Kg dan Marshall Quotient sebesar 269,209 Kg/mm.
Melahirkan Generasi Berkarakter Unggul melalui Transformasi Sosial yang Berbasis Pendidikan, Nilai, dan Kolaborasi Masyarakat di MTs Miftahul Khoir Alastengah Besuk Muhammad Helmi; Ainur Rofiq Sofa
Reflection : Islamic Education Journal Vol. 2 No. 1 (2025): Reflection : Islamic Education Journal
Publisher : Asosiasi Riset Ilmu Pendidikan Agama dan Filsafat Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/reflection.v2i1.431

Abstract

This study aims to analyze the efforts of MTs Miftahul Khoir Alastengah Besuk in fostering a generation of excellent character through social transformation based on education, religious values, and collaboration with the community. The main focus of this research is to explore how the school integrates moral and social values into its education to shape students' character, ensuring they are not only academically competent but also disciplined, responsible, and capable of working together. The research method used is a qualitative approach, with data collection techniques including interviews, observations, and documentation. The findings show that education at MTs Miftahul Khoir focuses not only on academic teaching but also on character development through active involvement of parents and the community. This collaboration is reflected in various social activities and community service programs, which provide students with opportunities to develop social skills and strengthen their relationships with the surrounding environment. In conclusion, the social transformation at MTs Miftahul Khoir successfully creates a generation that is not only academically intelligent but also possesses strong character and is ready to contribute positively to society. This study highlights the importance of synergy between formal education, local values, and community collaboration in creating an educational ecosystem that supports students' overall development.
Pengaruh Pengetahuan Pajak, Sistem Administrasi Perpajakan dan Tax Amnesty terhadap Kepatuhan Wajib Pajak: Studi Kasus pada Kantor Pajak Pratama Kota Pekalongan Tahun 2024 Muhammad Helmi; Lintang Kurniawati
El-Mal: Jurnal Kajian Ekonomi & Bisnis Islam Vol. 6 No. 7 (2025): El-Mal: Jurnal Kajian Ekonomi & Bisnis Islam
Publisher : Intitut Agama Islam Nasional Laa Roiba Bogor

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

Abstract

Taxpayer compliance is essential for increasing state revenue from taxation. This study aims to analyze the influence of Tax Knowledge, Tax Administration System, and Tax Amnesty on Individual Taxpayer Compliance. A quantitative approach was applied using a survey of 111 registered taxpayers. A validated and reliable questionnaire was used, and data were analyzed using multiple linear regression and classical assumption tests. The results show that Tax Knowledge and the Tax Administration System significantly affect Taxpayer Compliance. Improved understanding and efficient tax systems encourage higher compliance. However, Tax Amnesty has no significant effect, indicating its limited impact on long-term compliance. The study recommends strengthening tax education, developing user-friendly digital systems, and evaluating amnesty policy effectiveness.
Pengaruh Pengetahuan Pajak, Sistem Administrasi Perpajakan dan Tax Amnesty terhadap Kepatuhan Wajib Pajak: Studi Kasus pada Kantor Pajak Pratama Kota Pekalongan Tahun 2024 Muhammad Helmi; Lintang Kurniawati
El-Mal: Jurnal Kajian Ekonomi & Bisnis Islam Vol. 6 No. 7 (2025): El-Mal: Jurnal Kajian Ekonomi & Bisnis Islam
Publisher : Intitut Agama Islam Nasional Laa Roiba Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47467/elmal.v6i7.9391

Abstract

Taxpayer compliance is essential for increasing state revenue from taxation. This study aims to analyze the influence of Tax Knowledge, Tax Administration System, and Tax Amnesty on Individual Taxpayer Compliance. A quantitative approach was applied using a survey of 111 registered taxpayers. A validated and reliable questionnaire was used, and data were analyzed using multiple linear regression and classical assumption tests. The results show that Tax Knowledge and the Tax Administration System significantly affect Taxpayer Compliance. Improved understanding and efficient tax systems encourage higher compliance. However, Tax Amnesty has no significant effect, indicating its limited impact on long-term compliance. The study recommends strengthening tax education, developing user-friendly digital systems, and evaluating amnesty policy effectiveness.
Pengaruh Latihan Power Tungkai Melalui Metode Box Jump terhadap Tinggi Loncatan Smash Bola Voli pada Peserta Ekstrakulikuler SMK Negeri 1 Kuningan Muhammad Helmi; Didi Muhtarom
Mutiara Pendidikan dan Olahraga Vol. 2 No. 4 (2025): Juli: Mutiara Pendidikan dan Olahraga
Publisher : Asosiasi Riset Ilmu Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/mupeno.v2i4.650

Abstract

This study was conducted with the aim of determining the extent to which leg power training through the box jump method influences the increase in volleyball smash jump height in extracurricular participants at SMK Negeri 1 Kuningan. Volleyball requires good physical abilities, especially explosive leg muscle power, because this skill plays a very important role in performing the smash movement as the main form of attack. One form of training that is believed to be able to increase explosive power is box jump training, which is a type of plyometric training that emphasizes repeated jumping movements with high intensity. The research method used was an experiment with a one group pretest-posttest design. The study involved a sample group consisting of 15 students, taken using a total sampling technique from all volleyball extracurricular members. The data collection instrument used the vertical jump smash test according to Ali Maksum. The test was conducted in two stages, namely before treatment (pretest) and after treatment (posttest). The results of data analysis showed a significant increase after being given treatment in the form of box jump training. This is evidenced by a significance value (p) of 0.000 which is smaller than 0.05, so it can be concluded that there is a real difference between the pretest and posttest results. In other words, box jump training has been shown to be effective in increasing smash height. These findings indicate that training programs designed to incorporate plyometric elements, particularly box jumps, can optimally develop leg muscle explosive power. Therefore, this study recommends that coaches and sports teachers incorporate box jumps as a primary training component in volleyball skills development programs, significantly improving players' offensive performance.
Ontologi Penelitian Hukum Islam Berbasis Paradigma Guba dan Lincoln Muhammad Helmi
Jurnal Hukum Islam Vol 18 No 1 (2020)
Publisher : Universitas Islam Negeri K.H. Abdurrahman Wahid Pekalongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28918/jhi.v18i1.2845

Abstract

This paper aims to analyze and develop Islamic law research by using paradigms of Guba and Lincoln. This literature study uses a philosophical approach. The results of the study showed that the development of normative and empirical Islamic law research based on the paradigms of Guba and Lincoln is adjusted to the fundamental beliefs of researchers which are recognized based on ontology questions, namely 1) if the researchers’ basic beliefs to understand rules based on “what is it” and “what is written” or textually, it is called positivism paradigm; 2) if the basic beliefs of the researchers in understanding rules of contextual Islamic law, it is included post-positivism paradigm; 3) if the researchers change the false understanding about rules, it is called critical theory paradigm; 4) if the basic beliefs of researchers are obtained from diverse thoughts, then it includes constructive paradigm. These a variety of paradigms will bring about the researchers to answer the problems in the implementation and development of Islamic law research. Therefore, the researchers of Islamic law should develop their researches through these various paradigms from the beginning to the end, so that the paradigms will lead to answering the research problems of contemporary Islamic law.
TARBIYAH AN-NABAWIYAH PERSPEKTIF PROF. DR. SAYYID MUHAMMAD BIN ALAWI AL-MALIKI DALAM KONTEKS MODERASI BERAGAMA Muhammad Helmi; Abdulloh
Journal Multicultural of Islamic Education Vol 8 No 2 (2025)
Publisher : Pascasarjana PAI Multikultural Universitas Yudharta Pasuruan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35891/ims.v8i2.6424

Abstract

This article discusses the thoughts of Prof. Dr. Sayyid Muhammad bin Alawi al-Maliki regarding Tarbiyah An-Nabawiyah in the context of religious moderation. This study adopts a library research approach, with data collection sourced from various relevant literature such as Mafahim Yajibu an-Tusohhah and collecting important information from previously collected sources. The next stage is data analysis. The results of the study show that religious moderation is an important contribution to grounding peaceful, just, and inclusive Islam. Through a cool da'wah approach, balanced education, and harmonious social relations. he showed that Islam can be a force that unites, not divides. In the midst of increasing extremism and intolerance, his teachings are very relevant to be used as a reference in building a moderate and harmonious religious life.
SPATIO-TEMPORAL DYNAMICS OF MANGROVE COVER 1985-2025 BASED ON GEOSPATIAL ANALYSIS IN REMBANG Suryaningtias, Sabna; Jafron Wasiq Hidayat; Muhammad Helmi
Multidiciplinary Output Research For Actual and International Issue (MORFAI) Vol. 6 No. 3 (2026): Multidiciplinary Output Research For Actual and International Issue
Publisher : RADJA PUBLIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.19081075

Abstract

Mangroves are coastal vegetation that lives in tidal zones, providing ecosystem services such as biota habitats, abrasion barriers, breakbreaks, and significant carbon sequestration for climate change mitigation. However, the mangrove ecosystem in Indonesia, including in Rembang District, which includes Pasarbanggi, Tireman, and Kabongan Lor Villages, has been degraded due to land conversion into ponds, logging, and reclamation. This study aims to analyze the spatio-temporal dynamics of mangrove cover in 1985-2025 in Rembang District using MVI based on Landsat 5 (1985, 1995), Landsat 7 (2005), and Sentinel-2A (2016, 2025) satellite imagery. The analysis was carried out with a composite of NIR, Green, and SWIR Bands, digitization, cropping, cover classification, and analysis of mangrove cover changes. The results of the study show that the area of mangrove cover has experienced very significant fluctuations. The period 1985–2005 was dominated by heavy degradation (-67.93%), while the period 2005–2025 recorded a very strong recovery of mangrove ecosystems (+339.56%), with the high cover class increasing from 17.39 ha to 27.40 ha. The success of rehabilitation and reduced land conversion have succeeded in restoring the area of mangrove forests while improving the quality of mangroves in Rembang District. Keywords: Spatio-temporal dynamics, Rembang, Mangrove, MVI, Remote Sensing
ENVIRONMENTAL IMPACT ASSESSMENT IN HYDROPOWER GENERATION: A LIFE CYCLE ASSESSMENT AT PT PLN NUSANTARA POWER UP CIRATA, PURWAKARTA, INDONESIA Wibowo, Rimala Zahra; Suherman; Muhammad Helmi; Arti Hapsari
Multidiciplinary Output Research For Actual and International Issue (MORFAI) Vol. 6 No. 3 (2026): Multidiciplinary Output Research For Actual and International Issue
Publisher : RADJA PUBLIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.19080911

Abstract

PT PLN Nusantara Power UP Cirata is one of the largest hydropower plants in Indonesia, with an installed capacity of 1.008 MW, and plays a strategic role in supporting national electricity supply security. Although classified as renewable energy, hydropower operations are not entirely free from environmental impacts, including greenhouse gas emissions from biomass decomposition in the reservoir and waste generated from turbine and generator maintenance. This study aims to analyze the environmental impacts of electricity generation using the Life Cycle Assessment method with a cradle-to-gate system boundary. The assessment was conducted using SimaPro 9.5.0.2 with the CML-IA Baseline method, where the functional unit was 1 kWh of electricity. The main hotspot within the cradle boundary is the Cirata Reservoir due to diesel consumption, contributing 1.21E-04 kg CO2-eq/kWh to global warming potential, 2.35E-11 kg CFC-11-eq/kWh to ozone depletion potential, 3.52E-07 kg SO2-eq/kWh to acidification potential, and 3.32E-06 kg PO4-eq/kWh to eutrophication potential. Within the gate boundary, hotspots were identified in the turbine, where used oil contributed 1.91E-05 kg CO2-eq/kWh to global warming potential, turbine oil contributed 2.63E-12 kg CFC-11-eq/kWh to ozone depletion and 3.97E-08 kg SO2-eq/kWh to acidification potential, and the sewage treatment plant contributed 3.49E-07 kg PO4-eq/kWh to eutrophication potential.
Co-Authors ABDULLOH Adhyaksa Saktika Drestanto Adiasti Rizqi Hardini Afirman Karyono Agus Hartoko Agus Indarjo Ainur Rofiq Sofa Anindya Wirasatria Arfa Agustina Rezekiah Arti Hapsari Bandi Sasmito Bhaskoro Rochaddi Didi Muhtarom Dwi Puspa Arini Hawinuti, Riska Herkiki S Himavan Prathista Nugraha Indratin Indratin Jafron Wasiq Hidayat Lintang Kurniawati Lolyta Lolyta M. Taufan Qoriadi Mochamad Arief Budihardjo Muhammad Faisal Mahdie Nurwijayanti Petrus Subardjo Poniman Poniman Rifanie Gazalie Rudhi Pribadi S Wouthuyzen Suherman Suryaningtias, Sabna Tika Murni Asih Tri Retnaningsih Soeprobowati Violet Violet Wibowo, Rimala Zahra