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All Journal KAPAL Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Factum: Jurnal Sejarah dan Pendidikan Sejarah International Journal of Education Jurnal Cita Hukum IJEE (Indonesian Journal of English Education) Jurnal Penelitian Karet JOURNAL OF INFORMATICS AND TELECOMMUNICATION ENGINEERING CIRCUIT: Jurnal Ilmiah Pendidikan Teknik Elektro Martabe : Jurnal Pengabdian Kepada Masyarakat Jurnal Ilmiah Administrasita' Jurnal Basicedu Jesya (Jurnal Ekonomi dan Ekonomi Syariah) EDUKATIF : JURNAL ILMU PENDIDIKAN Jurnal Ilmiah Akuntansi dan Keuangan Jurnal Onoma: Pendidikan, Bahasa, dan Sastra Abdi Dosen : Jurnal Pengabdian Pada Masyarakat Journal of Welding Technology Jurnal Educatio FKIP UNMA utile: Jurnal Kependidikan Abdi Laksana : Jurnal Pengabdian Kepada Masyarakat Budimas : Jurnal Pengabdian Masyarakat Insan Cita Jurnal Pengabdian Kepada Masyarakat Al Qisthi: Jurnal Sosial dan Politik Journal Coaching Education Sports JURNAL ABDIMAS TRIDHARMA MANAJEMEN Jurnal Kesehatan Tambusai Jurnal Pengabdian dan Peningkatan Mutu Masyarakat (JANAYU) Al-Qisthi: Jurnal Sosial dan Politik Jurnal Riset dan Inovasi Pembelajaran Journal of English Language and Education Jurnal Olahraga dan Kesehatan Indonesia (JOKI) Jurnal Ekonomi dan Manajemen Indonesia Jurnal Pengabdian Kepada Masyarakat Abdi Nusa Journal of Mechanical Engineering, Science, and Innovation Journal of Government Insight PENGABDIAN SOSIAL Jurnal Ilmu Hukum, Humaniora dan Politik (JIHHP) Edukasiana: Jurnal Inovasi Pendidikan Jurnal Basicedu Governors JAQ Cerdika: Jurnal Ilmiah Indonesia Indonesian Journal of Physical Activity Surya : Jurnal Pengabdian Kepada Masyarakat Jurnal Teknologi Maritim JPFT (Jurnal Pendidikan Fisika Tadulako Online) Visioner : Jurnal Manajemen dan Bisnis JOURNAL SPORTINDO Journal of Selvicoltura Asean
Bachtiar Bachtiar
Nursing Department, Polytechnic Health Ministry of Semarang
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Analisis Metode Temper Bead Welding sebagai Alternatif Pengganti PWHT pada Pembuatan Sulphuric Acid Storage Tank Miftachul Munir, Moh; Syaiful Amri, M.; Khoirul Rahmat, Imam; Bachtiar, Bachtiar; Victoria, Jaka
Jurnal Teknologi Maritim Vol. 7 No. 1 (2024): Jurnal Teknologi Maritim
Publisher : Pusat Penelitian dan Pengabdian Masyarakat Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35991/jtm.v7i1.6

Abstract

Pada proyek EPC Smelter Manyar yang digunakan untuk pengolahan konsentrat tembaga, dilakukan pembuatan Sulfuric Acid Storage Tank yang menggunakan material SA 283 Grade C. Storage tank tersebut dilakukan proses heat treatment(PWHT, post weld heat treatment) yang bertujuan untuk mengurangi residual stress atau tegangan sisa pada material setelah dilakukan pengelasan. Proses pemanasan dan pendinginan saat pengelasan dapat menyebabkan terjadinya perubahan struktur mikro dan properties material sehingga menimbulkan residual stress setelah pengelasan selesai. Pada proyek EPC Manyar Smelter ini, pelat dengan thickness diatas 25 mm harus dilakukan PWHT atau stress relievingmelalui pemanasan pada temperatur dan jangka waktu tertentu. PWHT yang dilakukan di industri, memiliki kekurangan dalam pengerjaannya seperti terbatasnya furnace, biaya yang cukup besar dan membutuhkan waktu relatif lama. Oleh karena itu, perlu adanya solusi baru untuk meminimalisir kekurangan tersebut yaitu dengan metode temper bead welding(TBW). Temper bead welding (TBW) merupakan teknik pengelasan dengan menempatkan manik las (bead) pada lokasi tertentu pada proses pengelasan untuk merubah struktur mikro dan sifat mekanik pada material yang diharapkan memiliki sifat mekanik yang sama dengan metode PWHT. Teknik ini dalam perkembangannya, sangat efektif dan efisien dalam pengerjaan suatu proyek dan dapat mengurangi biaya yang besar. Hasil pengujian hardness pada teknik Temper Bead Welding menunjukkan nilai rata-rata hardness lebih tinggi daripada teknik PWHT, namun masih memenuhi syarat keberterimaan material SA 283 Grade C, pada standard NACE 0294 yaitu maksimal 248 HV. Dari hasil tersebut menunjukkan bahwa teknik Temper Bead Welding ini dapat digunakan sebagai alternatif pengganti PWHT.
Pelatihan Senam Bugar Muhamamdiyah bagi Guru dan Siswa Sekolah Muhamamdiyah di Kota/Kab Sukabumi Nugraheni, Wening; Bachtiar, Bachtiar; Yulianingsih, Ika
Jurnal Surya Vol 5 No 2 (2023): Jurnal Pengabdian Kepada Masyarakat Surya Universitas Muhammadiyah Sukabumi (UMMI
Publisher : Universitas Muhammadiyah Sukabumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37150/jsu.v5i2.2289

Abstract

Senam Bugar Muhamamdiyah Socialization and Training is a training and outreach activity regarding Senam Bugar Muhamamdiyah which can be used as one of the physical activities to improve the degree of physical fitness of students in Muhammadiyah schools and the Muhammadiyah community. This fitness exercise involves all ages and has irreversible movements, so it can be done together. The activity locations were in several Muhammadiyah schools, namely MI Muhammadiyah Cipetir with 287 students and 14 teachers, MTs Muhammadiyah Cipoho 27 students, SMA Muhammadiyah Sukabumi City with 37 students and in Kp. Cigrass Ds. Sela Awi kec. There were 40 people in Sukaraja, Sukabumi Regency, bringing the total activity participants to 405 participants. Activities carried out for 6 months with meetings once a week. Schedule of activities attached. The achievement of the success of the training was 65% of the participants had memorized the Muhamamdoyah fitness movement and the rest had not memorized it well. We can say that the activity went quite well. There were several factors that hindered the implementation of socialization and training including limited time at school which was cut short by the Ramadan holidays and Eid al-Fitr holidays so that it had quite an effect on the results of the Senam Bugar Muhamamdiyah training because participants were cut off for training and when the exercises started again, the participants forgot again with the movements so they had to start over from the beginning in providing training, the characteristics of students who were still difficult to instruct and students' interest in gymnastic activities were still lacking. However, the supporting factors include adequate facilities and infrastructure, teacher participation, and conducive school support.
Hubungan antara Kekuatan Otot Lengan dan Kekuatan Otot Perut terhadap Ketepatan Pukulan Overhead Lob dalam Permainan Bulutangkis pada Siswa Kelas VIII MTS Negeri 3 Sukabumi Tahun 2018 Ilham, Rio; Bachtiar, Bachtiar; Maulana, Firman
utile: Jurnal Kependidikan Vol. 4 No. 1 (2018): utile: Jurnal Kependidikan
Publisher : FKIP Universitas Muhammadiyah Sukabumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37150/jut.v4i1.239

Abstract

This study aims to determine the relationship between arm muscle strength and abdominal muscle strength to the accuracy of the lob overhead punch in badminton game. This research uses quantitative method with test and measurement technique and processed with multiple correlation statistic analysis. The research sample is the students of Grade VIII MTs Negeri 3 Sukabumi, amounting to 30 people with using random sampling technique. Based on the result of X1 correlation, X2 to Y obtained Fcount is bigger than Ftable, that is Fcount (35,2)> Ftable (2,57) with significance level 0,05. By getting the calculation of RX1X2Y of 0.840 with the category pertained strong and high. And the construction is simultaneously R2 x 100% = 0.8402 x 100% = 70.5% and the remaining 29.5%. This means that mastery of arm muscle strength and abdominal muscle strength contributes to the accuracy of the lob overhead punch in badminton games by 70.5% and the remaining 29.5% by other variables.
Hubungan antara Kekuatan Otot Lengan dan Fleksibilitas Pergelangan Tangan terhadap Ketepatan Servis Long Forehand di Ekstrakurikuler Bulutangkis SMA Negeri 1 Kota Sukabumi Tahun 2018 Barakat, Nurjamilah; Maulana, Firman; Bachtiar, Bachtiar
utile: Jurnal Kependidikan Vol. 4 No. 1 (2018): utile: Jurnal Kependidikan
Publisher : FKIP Universitas Muhammadiyah Sukabumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37150/jut.v4i1.241

Abstract

This study aims to determine the arm muscle strength, wrist flexibility, and know their contribution to the accuracy of long forehand service precision. The type of this research uses servey. The population of this research is 30 people, the sample is taken by total sampling. Arm muscle strength data obtained from push up, wrist flexibility data obtained from test goniometer, the long forehand service precision data obtained from long serve test. Data were analyzed by using correlation techniques and contribution (r2 x 100%) with significance level α 0,05. Data analisis of the arm muscle strength was obralned rscore = 0,543 and rtable = 0,374. Its contribution to the accuracy of long forehand service precision is 29,48%. Data analysis of wrist flexibility was obralned rscore = 0,559 and rtable = 0,374. Its contribution to the accuracy of wrist flexibility is 31,24%. Analysis of arm muscle strength data and wrist flexibility joint together contributed 44,35% to the accuracy of long forehand service precision.
Pengaruh Metode Latihan Bagian Dalam Meningkatkan Keterampilan Spike Pada Ekstrakurikuler Bola Voli di SMP Negeri 1 Purabaya 2019 Kurnia Syamba, Rangga Dharma; Bachtiar, Bachtiar; juhanda, aa
utile: Jurnal Kependidikan Vol. 6 No. 1 (2020): utile: Jurnal Kependidikan
Publisher : FKIP Universitas Muhammadiyah Sukabumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37150/jut.v6i1.762

Abstract

Olahraga bola voli adalah olahraga yang sangat populer di masyarakat Indonesia. Banyak perlombaan yang dibuka untuk umum maupun tingkat siswa. Ekstrakurukuler SMP Negeri 1 Purabaya adalah ekstrakurikuler yang rutin mengikuti perlombaan bola voli dengan minim prestasi. Hal ini disebabkan kemampuan yang kurang dalam menguasi keterampilan dan teknik bola voli terutama keterampilan spike. Tujuan penelitian ini untuk mengetahui pengaruh metode latihan bagian dalam meningkatkan keterampilan spike siswa ekstrakurikuler bola voli di SMP Negeri 1 Purabaya.Penelitian ini merupakan penelitian eksperimen dengan desain penelitian one group pre test and post test design. Sampel yang digunakan pada penelitian ini sebanyak 16 orang dengan teknik pengambilan sampel yaitu Total sampling. Teknik pengambilan data pada penelitian ini menggunakan tes. Teknik analisis data menggukan uji paired sample t-test.Hasil penelitian ini menunjukkan terdapat pengaruh yang signifikan metode latihan bagaian terhadap peningkatan spike. Berdasarkan hasil uji statistik dengan bamtuan program SPSS 25 diperoleh nilai 0,00 pada taraf signifikansi 5% (signifikansi < 0,005) sehingga metode latihan bagian mempunyai pengaruh yang signifikan terhadap siswa.
Transformation of Electoral Regulations and Substantive Democracy in Post Reform Indonesia Puadi, Puadi; Bachtiar, Bachtiar; Wicaksono, Filipus Wahyu
GOVERNORS Vol. 4 No. 1 (2025): April-July 2025 Issue
Publisher : Yayasan Cita Cendekiawan Al Khwarizmi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/governors.v4i1.6495

Abstract

Since the 1998 Reform, Indonesia has experienced major changes in its electoral system. However, these changes have not always strengthened democracy in practice. This study aims to examine how the political elite's power has influenced the design and implementation of electoral regulations between 1999 and 2024. Using a qualitative and descriptive-analytical approach, the study draws on institutional theory and the concept of substantive democracy. Data were collected from laws, Constitutional Court decisions, and institutional reports. The findings show that regulations such as electoral thresholds have concentrated power among political elites, limiting political competition and leadership renewal. The open-list system encourages expensive, personality-driven campaigns, weakening accountability and party unity. The use of the noken system in Papua, though culturally affirming, challenges democratic values of equality and individual participation. Widespread vote buying reflects the persistence of patron-client politics. Additionally, the deaths of many polling officers in 2019 highlight the state’s failure to protect election workers. The study concludes that Indonesia’s electoral rules remain procedural and lack substance. Electoral reform is urgently needed to ensure fairness, transparency, and safety in future elections.
Analisis Generic Strategy Model Michael Porter Pada PT. Cahaya Murni Borneo Timur Untuk Menentukan Pilihan Strategi Di Balikpapan H, Syahril; Bachtiar, Bachtiar
JEMI is managed and published by the Management Study Program, Faculty of Economics and Business, Kutai Kartanegara University. Institutional legality is reflected in the ISSN number: 1411-9560 published by LIPI in 2003 as a manifestation of the comm Vol 16 No 2 (2016)
Publisher : FAKULTAS EKONOMI DAN BISNIS UNIKARTA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53640/jemi.v16i2.222

Abstract

The manufacture industry is one of the industries that produce springbad, furniture and its elements. The number of competitors with their product differentiation as well as the government policy to be the cause of this rivalry. PT. Cahaya Murni Borneo Timur is one of the companies that compete in this industry, so companies should create a strategy to win the competition in the market. The method used is a qualitative research method with data collection techniques with a purposive sample. This study aimed to analyze the competitive environment and the industry's best options strategies on PT. Cahaya Murni Borneo Timur using Generic Strategy from Michael E. Porter.Keywords: Competitive Strategy, industry competition environment, the choice of the best strategy, Generic Strategy Analysis.
Analisis Generic Strategy Model Michael Porter Pada PT. Cahaya Murni Borneo Timur Untuk Menentukan Pilihan Strategi Di Balikpapan H, Syahril; Bachtiar, Bachtiar
JEMI is managed and published by the Management Study Program, Faculty of Economics and Business, Kutai Kartanegara University. Institutional legality is reflected in the ISSN number: 1411-9560 published by LIPI in 2003 as a manifestation of the comm Vol 16 No 2 (2016)
Publisher : FAKULTAS EKONOMI DAN BISNIS UNIKARTA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53640/jemi.v16i2.222

Abstract

The manufacture industry is one of the industries that produce springbad, furniture and its elements. The number of competitors with their product differentiation as well as the government policy to be the cause of this rivalry. PT. Cahaya Murni Borneo Timur is one of the companies that compete in this industry, so companies should create a strategy to win the competition in the market. The method used is a qualitative research method with data collection techniques with a purposive sample. This study aimed to analyze the competitive environment and the industry's best options strategies on PT. Cahaya Murni Borneo Timur using Generic Strategy from Michael E. Porter.Keywords: Competitive Strategy, industry competition environment, the choice of the best strategy, Generic Strategy Analysis.
Peningkatan Keterampilan Passing Bawah Melalui Metode Permainan Dalam Pembelajaran Bola Voli Pada Siswa Kelas XI di SMK IT Bina Insani Kabupaten Sukabumi Yulianah, Yola; Bachtiar, Bachtiar; Maulana, Firman
Edukasiana: Jurnal Inovasi Pendidikan Vol. 4 No. 4 (2025)
Publisher : Papanda Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56916/ejip.v4i4.2181

Abstract

Penelitian ini dilaksanakan di SMK IT Bina Insani Kabupaten Sukabumi pada pembelajaran pendidikan jasmani (PJOK). Tujuan dari penelitian ini adalah untuk mengetahui pengaruh metode permainan terhadap peningkatan keterampilan passing bawah pada pembelajaran bola voli. Penelitian ini menggunakan pendekatan Penelitian Tindakan Kelas (PTK) atau Action Research (AR) dengan populasi seluruh siswa kelas XI. Teknik pengumpulan data dalam penelitian ini menggunakan angket. Analisis data statistik kuantitatif dalam penelitian ini menggunakan Microsoft Excel. Dari analisis data ini menggunakan analisis berupa angket partisipasi belajar siswa, analisis hasil observasi guru, dan analisis keterampilan passing bawah siswa adalah 75% partisipasi belajar siswa termasuk kategori sangat berpengaruh, 74% observasi hasil guru kategori cukup berpengaruh, 78% keterampilan passing bawah kategori sangat berpengaruh.Jadi dapat disimpulkan bahwa pembelajaran tersebut sangat berpengaruh terhadap pembelajaran bola voli.
ELSA-Supported Blended Learning: Enhancing Vocational Students’ Speaking and Motivation Wahyudin, Wahyudin; Bachtiar, Bachtiar; Zuhairi, Aminudin
Journal of English Language and Education Vol 10, No 5 (2025)
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jele.v10i5.1386

Abstract

Developing employability-ready English speaking skills remains challenging and persistent in Indonesian vocational schools across contexts. This mixed-methods study investigated the effectiveness of ELSA, an AI-driven speaking app, embedded in a four-week blended course with two weekly 90-minute sessions for 30 Grade-11 Agribusiness students. Surveys (validated), CEFR-aligned observations, and interviews examined gains in pronunciation, fluency, confidence, and motivation, and documented implementation factors. Results show marked improvement in prosody, articulation, and extended turns; learners reported higher confidence, autonomy, and sustained engagement driven by real-time feedback, progress tracking, and gamified tasks. Skills transferred to vocationally authentic performances (e.g., product descriptions, customer service, job-interview simulations). However, efficacy depended on device availability, stable connectivity, digital literacy, and teacher mediation; freemium limits also constrained practice. The study concludes that ELSA-supported blended learning offers a practical, scalable model to strengthen oral proficiency and motivation in vocational EFL programs, provided institutions ensure equitable access, teacher support, and curricular alignment.
Co-Authors Aa Juhanda admin admin, admin Adriman, Ramzi Ahmad Alwi Nurudin Ait Novatiani Al-Majid, Faisal Setiawan Anggraeni, RR Dewi Anhar, Bani Aqilah, Jihan Ardiasih, Lidwina Sri Ari, Muhammad Arief Rachmawan, Arief Arif Rachman Arismunandar Arismunandar Ashariana, Ashariana Atima, Moh. Zulkarnain Aulia, Salsa Najwa Azzahara, Gia Arya Baenuri, Dzulkipli Bambang Santoso Bambang Wiyono, Bambang barakat, nurjamilah Bastianon, Bastianon Belvana, Salsabila Chaerunnisa, Alifia Chrisputranto, Matheus Raditya Christina, Veronica D, Nabilah Hana’a Darmanto, Erlambang Budi Darsikin Darsikin Defruzer, Defruzer Dika Anggara Diki Hermawan, Diki Djabar, Murni Dusa, Riswanto Eriek Wahyu Restu Widodo Erik Erik, Erik ernikawati, ernikawati Faizat, Faizat Firman Maulana, Firman Firman Septiadi Gueci, Rizal S Gunawan Gunawan H, Syahril Hadi Sutopo Hakim, Firman Nur Handayani, Fice Hasan, Zaenab hasran, Hasran HS, Christnatalis Hussien, M. Rabiddin Ilham Khoirul Ibad Ilham Kurniawan ilham, rio Imanuddin, Iman Irasuti, Irasuti Ismitasari, Elisa Isnaeni, Beli Isnaeni, Belly Juhana, Juhana Juliani, Evy Hanisa Karim Al Amin, Mochammad Karim, Rilman Khoirul Rahmat, Imam Khomariah, Nur Kurnia Syamba, Rangga Dharma Ma'ruf, Buana Maulana, Fahmi Mauritz Simanjuntak, Mauritz Maya Puspitasari Maya Puspitasari, Maya Miftachul Munir, Moh Miftachul Munir, Moh. Mochammad Karim Al Amin Moh. Syaiful Amri Moonti, Roy Marthen Muhammad Fauzi Muhammad Saleh Mujiono Mujiono Mukhlis Mukhlis Muna, Siti Umamah Naili Mustaghfirin, Muhammad Anis Mutia, Andi Khairun N. Laratu, Wahyuni Nadila, Nadila Nisazarifa, Adristi Noe, Najwa Sesilya Nova Susanti Novianto, Robertus Ary Nuddin, Nuddin Nuna, Ain Anggraini Nuraeni, Hilda Nurlaelasari, Ella Olii, Rahmat Pakaya, Ariyanti Pakelo, Irfandi Panggabean, Donwil Patmawati Patmawati, Patmawati Prastiwi, Dian Eka Pratama Putra, Mochammad Yudha Aditya Pratama, Fathir Bayu Pratama, Panduma Putra Priyambodo Nur Ardi Nugroho Puadi, Puadi Puspaningrum, Dian Putera, Erwien Yuliansyah Rahman Rahman Rahmawati, Nadila Ramkar, Rahma Sakura Raya, Loisa Diana Riau, Dwi Putranto RICO, MUHAMMAD Rizky, Raninda Anjania Rony, Rony Rosmini Rosmini Rossi, Roberto RR. Ella Evrita Hestiandari Ruminda Ruminda Ruruh, Alexander Rusdiyanto, Edi Sadeli, Lili Sahlania, Onno Sakti, Supian Sarumpet, Tetty Lasniroha Setiawan, Tato Sipayung, Mardin Siti Mawaddah, Siti Soelistijono, Rafi Febian Soewita, Samuel Sri Ardiasih, Lidwina Sri Dewi Nirmala Sriwati Sriwati Suharto Suharto Suhendra Suhendra Suleman, Vikisastro Supriyanti Supriyanti Susanto Susanto Syamsudin, Muhamad Syamsuri, M. Abiyarhab Syauri, Muhammad Sofian Sylvia Tamara, Heni Aulia Tarmizi Tarmizi Udi Samanhudi Uno, Moh. Erikrianto Victoria, Jaka Wahdah, Wahdah Wahyono Wahyono Wahyono, Dhoni Presti Wahyudin Wahyudin Wening Nugraheni Wicaksono, Filipus Wahyu Wicaksono, Filipus Wahyu Wicakson Widya Rizky Pratiwi, Widya Rizky Widyastuti, Dwi Wijaya, Aida Yulianah, Yola Yulianingsih, Ika Zakaria, Abdul Majid Zuhairi, Aminudin