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All Journal Jurnal Rekayasa Jurnal Rekayasa Sipil dan Desain Teras Jurnal Khasanah Ilmu - Jurnal Pariwisata Dan Budaya Spatial : Wahana Komunikasi dan Informasi Geografi Jurnal Ilmiah Spirit Journal of Innovation and Technology Warta AKAB Cendekia: Jurnal Ilmu Sosial, Bahasa dan Pendidikan E-JRM Al-Khidmah: Jurnal Pengabdian Kepada Masyarakat Kegiatan Positif : Jurnal Hasil Karya Pengabdian Masyarakat Jurnal Ilmiah Research Student Indonesian Journal of Environment and Sustainability Issues Menulis: Jurnal Penelitian Nusantara
Ahmad Zakaria
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Religion Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Social Sciences Other

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PENGOLAHAN AIR LIMBAH INDUSTRI SUSU DENGAN SISTEM SEMI BATCH REACTOR Ahmad Zakaria; Erizal Tanjung; Khansa Fay’i Safira; Aynuddin Aynuddin
Journal Warta AKAB Vol 44, No 2 (2020): Warta AKAB
Publisher : Politeknik AKA Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55075/wa.v44i2.13

Abstract

Air limbah industri susu berasal dari susu dan produk jadi yang hilang karena kebocoran pipa, luberan (overflow) tangki penampungan, kegagalan proses produksi, atau buruknya proses handling. Air limbah industri susu juga mengandung beberapa senyawa kimia (NaOH, KOH, H3PO4, HNO3, dan NaOCl) yang digunakan untuk membersihkan peralatan dan area produksi. Karakteristik limbah industri susu umumnya memiliki kandungan organik yang tinggi sehingga dalam pengolahannya dilakukan kombinasi pengolahan dengan metode biologi, fisika, dan kimia. Percobaan ini bertujuan untuk mengetahui nilai karakteristik effluent hasil pengolahan dengan sistem semi batch reactor dan membandingkannya dengan Baku Mutu Lingkungan yang berlaku (Permen LH No. 5/2014 Lampiran VIII). Tiga tahap percobaan meliputi persiapan contoh, proses pengolahan dan pengujian, serta interpretasi data. Berdasarkan percobaan didapatkan hasil bahwa rangkaian unit pengolahan ini mampu memperbaiki semua karakteristik limbah secara signifikan. Nilai parameter kualitas limbah yaitu pH 8,83; TDS 986 mg/L; COD 100 mg/L; amonia 1 mg/L; BOD 36 mg/L; minyak dan lemak dibawah limit deteksi; TSS 24 mg/L. Hasil pengolahan sudah memenuhi baku mutu lingkungan yang berlaku.
Analisis Kuat Lentur Nominal Balok Komposit Menggunakan Program Berbasis Android Rifki Ananda Saputro; Suyadi Suyadi; Ahmad Zakaria
Jurnal Rekayasa Sipil dan Desain Vol 3, No 3 (2015): Edisi September 2015
Publisher : Jurnal Rekayasa Sipil dan Desain

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

Abstract

Composite beam is a combination of concrete and steel profiles. Nominal flexural strengthanalysis of composite cross-section can be calculated manually, but it takes a long time or are notefficient when calculating the nominal flexural strength analysis of composite beams. In this study,it can be a formulation of the problem is how to apply the analysis to the nominal flexural strengthcomposite into android-based programs. The purpose of this study in this thesis is to simplify thecalculation of the nominal flexural strength analysis of composite beams using android basedapplication program. Object-based research to create a program that profiles IWF android withconcrete (composite beam).In the implementation of this study using two methods: the method of literature study (study oftheory) and methods of software development (analysis, design, coding, and testing).This program has been tested with manual calculations that show the results accordingly. Fromthe test results indicate that the ease of use of program-based program that android is moresimple and easy to use in the field.Keywords: composite beam, android, nominal flexural strength analysis
Optimasi Koagulan Polialumunium Klorida pada Percobaan Jar Test Berdasarkan Penurunan Konsentrasi Parameter Chemical Oxygen Demand (COD) Air Limbah menggunakan Metode Respon Permukaan Dian Mira Fadela; Ahmad Zakaria; Wittri Djasmasari; Fachrurrazie Fachrurrazie; Risdha Sagita Razak
Journal Warta AKAB Vol 46, No 1 (2022): Warta AKAB
Publisher : Politeknik AKA Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55075/wa.v46i1.86

Abstract

Industri minyak wangi menghasilkan air limbah yang mengandung beberapa jenis bahan kimia yang dapat mencemari lingkungan. Proses koagulasi-flokulasi merupakan salah satu metode dalam pengolahan air limbah dengan penambahan koagulan yang bertujuan untuk menghilangkan padatan tersuspensi dan zat organik yang dapat menyebabkan kekeruhan serta bau. Penambahan koagulan pada Waste water treatment plant (WWTP) tidak dilakukan secara kuantitatif, sehingga perlu dilakukan percobaan dengan metode jar test. Tujuan percobaan untuk mengetahui pH dan dosis optimum koagulan poly alumunium chloride (PAC) pada percobaan jar test berdasarkan penurunan konsentrasi chemical oxygen demand (COD) air limbah menggunakan metode respon permukaan. Hasil uji parameter COD dibandingkan dengan Surat Keputusan Gubernur Tingkat 1 Jawa Barat (SK Gub TK 1 Jabar) No. 6 Tahun 1999 tentang Baku Mutu Limbah Cair Bagi Kegiatan Industri di Jawa Barat. Percobaan ini Berdasarkan hasil percobaan diperoleh kondisi optimum koagulan PAC pada pH air limbah 5,9 dengan dosis koagulan optimum pada 300 mg/L. Hasil pengujian parameter COD memberikan nilai efisiensi sebesar 49,89%. Percobaan yang dilakukan membuktikan bahwa koagulan PAC mampu menurunkan kadar pada parameter COD dengan nilai efisiensi yang cukup besar.
Time Lag Application on Correlation Analysis among the national and international agencies for the rainfall data of Lampung Province, Indonesia Lintang Kurnia Aridini; Ahmad Zakaria; Dyah I Kusumastuti; Ahmad Herison; Endro P Wahyono
Jurnal Inovasi Teknologi Vol 3 No 2 (2022): October
Publisher : Engineering Forum of Western Indonesian Government Universities Board (Forum Teknik, BKS-PTN Wilayah Barat) Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31629/jit.v3i2.5060

Abstract

The rainfall data in Lampung tends to be small and cannot represent a large location, so other sources of rainfall data are needed that can be used. One of them is TRMM on that basis it is deemed necessary to see the correlation of the TRMM and BMKG data. The purpose of this research is to analyze how big the correlation between TRMM data and BMKG data with Time Lag. And its Predictability, as well as improved correlation with Time Lag. The method used in this study is the Pearson correlation. The result of this research is that the biggest correlation is on H0 and H+1 for the highest daily cumulative 0.3376 - 0.4808, for cumulative 2 days at 0.417- 0.555, for cumulative 7 days 0.569 - 0.706, for cumulative 15 days at 0.612 - 0.785 and cumulative 30 daily 0.710 -0.811 the conclusion of this study is that TRMM and BMKG have a better correlation on H + 1 and (H0), the results of linear regression analysis with Time Lag concluded that the predictive ability of the data is better on Time Lag and the difference in correlation between H + 1 and H0 obtained an increase in the correlation value. declared to have increased 0.01 - 0.2).
PENGARUH FAKTOR PSIKOLOGIS KONSUMEN TERHADAP PENGAMBILAN KEPUTUSAN PEMBELIAN HANDPHONE MEREK SAMSUNG (Studi Kasus Pada Meteor Cell Malang) Ahmad Zakaria; N. Rachma
E-JRM : Elektronik Jurnal Riset Manajemen e-Jrm Vol. 07 No. 01 Februari 2018
Publisher : UNIVERSITAS ISLAM MALANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (553.288 KB)

Abstract

ABSTRACTThis research was conducted to analyze the Consumer PsychologicalFactors on the Purchasing Decision of Samsung Mobile Brand (Case Study onMeteor Cell Malang). The formulation of the problem in this research is a declinein sales of products Hanphone Samsung for 3 months in a row. The independentvariable consists of motivation (X1), perception (X2), knowledge (X3), andattitude X4) dependent variable is Purchase Decision (Y). Sample amounted to100 respondents taken using explanatory research technique (explanatoryresearch). Analysts use SPSS 16.0 which includes, reliability test, validity test,Normality Test, classical assumption test, multiple regression analysis, hypothesistesting through F test and t test.Attitude variable shows the largest regression coefficient. Attitude is themost important factor affecting Samsung Mobile Brand Buying Decision (CaseStudy In Meteor Cell Malang). The third important factor is Knowledge, thenPerception as the fourth factor that affect the Purchase Decision.Keywords: motivation, perception, knowledge, and attitude, PurchaseDecision.
Analisis Minat Siswa Dalam Mengikuti Kegiatan Ekstrakurikuler Olahraga di SMK Negeri Nusawungu Ahmad Zakaria; Teguh Priadi
CENDEKIA: Jurnal Ilmu Sosial, Bahasa dan Pendidikan Vol. 1 No. 3 (2021): CENDEKIA: Jurnal Ilmu Sosial, Bahasa dan Pendidikan
Publisher : Pusat Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/cendekia.v1i3.2917

Abstract

This research is descriptive research which aims to determine students' interest in participating in extracurricular activities at Nusawungu State Vocational School students. The design used in this research is associative research with descriptive analysis methods. The population is all Class 2 students of Nusawungu State Vocational School, the total population is 279 people. Samples were taken using the Stratified Proportional Random Sampling technique, namely a tiered random sampling method taken from 10% of the total population. So the sample used could be as many as 30 students. The data analysis technique used is descriptive analysis of descriptive data, percentage analysis using a computer application through the SPSS 16 program. Based on the results of validity and reliability tests, all data is declared reliable because the correlation value (Cronbach's Alpha) on average 0.830 is considered good for use. Normality test The data was also declared normal with an Asymp value = 0.974 (p>0.05). Thus, the results obtained can be concluded that students' interest in taking extracurricular sports lessons at the Nusawungu State Vocational School shows the high category with the results obtained being 78.53%.
Membangun nilai-nilai moderasi beragama sejak dini melalui edukasi keagamaan di Desa Ketompen Kecamatan Pajarakan Ahmad Muzakki; Ahmad Zakaria; Muhammad Zaenal Arifin
KHIDMAH : Jurnal Pengabdian Masyarakat Vol. 4 No. 1 (2024): Vol. 4 No. 1 (2024): April 2024
Publisher : Lembaga Penerbitan, Penelitian, dan Pengabdian Masyarakat (LP3M) UNZAHLP3M

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55210/khidmah.v4i1.381

Abstract

Penelitian ini mengkaji peran edukasi keagamaan dalam membentuk nilai-nilai moderasi beragama sejak dini. Dengan semakin kompleksnya tantangan dan dinamika sosial di era modern, pentingnya pendidikan keagamaan dalam merespons radikalisme dan intoleransi menjadi semakin menonjol. Penelitian ini bertujuan untuk mengeksplorasi strategi dan metode dalam mengintegrasikan nilai-nilai moderasi beragama dalam kurikulum pendidikan keagamaan, khususnya pada tahap dini atau masa perkembangan awal anak. Melalui pendekatan kualitatif dengan studi literatur dan analisis konten, penelitian ini menyelidiki teori-teori psikologi perkembangan, prinsip-prinsip pendidikan agama, serta praktik terbaik dalam mendidik anak-anak tentang moderasi beragama. Temuan penelitian mengidentifikasi bahwa pendidikan keagamaan yang holistik dan inklusif, yang mencakup pemahaman tentang nilai-nilai universal, dialog antaragama, serta pengembangan keterampilan sosial dan emosional, dapat menjadi landasan efektif dalam membentuk sikap moderat terhadap agama sejak usia dini. Implikasi penelitian ini mencakup rekomendasi untuk penyusunan kurikulum pendidikan keagamaan yang berorientasi pada pengembangan karakter dan kemampuan pemecahan masalah, serta pentingnya peran orang tua dan komunitas dalam mendukung proses pendidikan keagamaan yang holistik. Penelitian ini memberikan kontribusi pada pemahaman lebih lanjut tentang upaya pembentukan sikap moderat terhadap agama sejak dini sebagai bagian dari strategi pencegahan radikalisme dan intoleransi di masyarakat.
Pemanfaatan Teknologi dan Aplikasi QGIS untuk Pemetaan Digital Potensi Desa Pancuran Gading Kabupaten Kampar Provinsi Riau Mardiana Mardiana; Anggun Dwi Cahyani Fitri; Putri Mardiyanti; Haifa Muthi; Fuad Zikri; Gita Putri Sadelina; Al Arif Febrian; Ahmad Zakaria; Muhammad Ijlal Ghaly; Shelly Isya Ramadhani; Annisa Delia Putri
Kegiatan Positif : Jurnal Hasil Karya Pengabdian Masyarakat Vol. 2 No. 2 (2024): Juni : Kegiatan Positif : Jurnal Hasil Karya Pengabdian Masyarakat
Publisher : Asosiasi Riset Ilmu Manajemen Kewirausahaan dan Bisnis Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/kegiatanpositif.v2i2.965

Abstract

Research carried out by KKN students in the form of community service aims to facilitate public access to location points in a place or region through public facilities in Pancuran Gading Village, Tapung District, Kampar Regency, Riau Province. This research was carried out using an implementation technique in the form of Participatory Action Research (PAR) Method (Participatory Action Research) with three principles which serve as a reference for service research. In carrying out the mapping of the coordinates of public facilities in Pancuran Gading Village, the research we carried out was coordinated by the village, namely Mr. Hari Isnaldi as Secretary of Pancuran Gading Village, Tapung District. Villages are seen as the starting point for empowering regional potential. With this village potential mapping, it can be used to find out existing potential information, and can be used as material for village development planning. This potential map was created using digital mapping technology in the form of the QGIS application which is viewed through a map and then created manually in the application. With the success of the students, they created a map as a means used by the community to access public facilities or places in Pancuran Gading Village.
Analisis Motif dan Modus Kriminalitas Narapidana pada Kasus Pembegalan Melalui Studi Kasus Lapas Cipinang Ciek Julyati Hisyam; Ashfiya Salsabila; Ardelia Zahirah Rahman; Mesya Ashilah; Nabilah Destin Amelia; Ahmad Zakaria; Lovina Hasianna Tampubolon
JURNAL ILMIAH RESEARCH STUDENT Vol. 2 No. 1 (2025): Maret
Publisher : CV. KAMPUS AKADEMIK PUBLISING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61722/jirs.v2i1.3584

Abstract

Abstract. Robbery is a criminal act that involves the seizure of property through violence or threats, often targeting individuals in public places. This study aims to explore the factors that drive individuals to engage in robbery, focusing on the experiences of a prisoner at Cipinang Prison. The research employs a qualitative approach through in-depth interviews and observations, allowing the researcher to gain a comprehensive understanding of the social, economic, and interactional backgrounds of the perpetrator. The findings indicate that MAA's decision to commit robbery was influenced by economic pressure, the loss of a parent, and associations with friends involved in criminal activities. Furthermore, social interaction and communication with his group played a crucial role in shaping the norms and rationalizations that supported his criminal behavior. Thus, this research emphasizes the importance of understanding the social and economic context of offenders to develop more effective prevention strategies and foster a safer environment for the community. Abstrak. Pembegalan adalah tindakan kriminal yang melibatkan perampasan barang dengan kekerasan atau ancaman, sering kali menargetkan individu di tempat umum. Penelitian ini bertujuan untuk menggali faktor-faktor yang mendorong individu terlibat dalam tindakan pembegalan, dengan fokus pada pengalaman seorang narapidana di Lapas Cipinang. Metode yang digunakan dalam penelitian ini adalah pendekatan kualitatif melalui wawancara mendalam dan observasi, yang memungkinkan peneliti untuk mendapatkan pemahaman yang lebih komprehensif mengenai latar belakang sosial, ekonomi, dan interaksi pelaku. Hasil penelitian menunjukkan bahwa keputusan MAA untuk melakukan pembegalan dipengaruhi oleh tekanan ekonomi, kehilangan orang tua, dan pergaulan dengan teman-teman yang terlibat dalam kejahatan. Selain itu, interaksi sosial dan komunikasi dengan kelompoknya berperan penting dalam membentuk norma dan rasionalisasi yang mendukung perilaku kriminal. Dengan demikian, penelitian ini menekankan pentingnya memahami konteks sosial dan ekonomi pelaku kejahatan untuk merancang strategi pencegahan yang lebih efektif dan menciptakan lingkungan yang lebih aman bagi masyarakat.
Peran Program Sibaper 5.0 Dalam Meningkatkan Efektivitas Laporan Pencatatan Persediaan Barang Pada Dinas Sosial P3AKB Kabupaten Bondowoso Ahmad Zakaria; Rini Puji Astuti; Muhammad Sohib
Menulis: Jurnal Penelitian Nusantara Vol. 1 No. 3 (2025): Menulis - Maret
Publisher : PT. Padang Tekno Corp

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59435/menulis.v1i3.60

Abstract

Penelitian ini bertujuan untuk menganalisis efektivitas pencatatan laporan persediaan barang di Dinas Sosial P3AKB Bondowoso melalui penggunaan program Sistem Barang Persediaan (SIBAPER). Metode yang digunakan dalam penelitian ini adalah metode kualitatif dengan teknik pengumpulan data melaluhi hasil Observasi, Wawancara, Dokumentasi dan Studi Pustaka. SIBAPER berperan penting dalam meningkatkan efektivitas pencatatan persediaan. Software berbasis website ini membantu dalam mengurangi kesalahan pencatatan, mempercepat proses pengolahan data, serta meningkatkan akurasi dan konsistensi laporan persediaan. Dengan demikian, implementasi SIBAPER terbukti efektif dalam mendukung operasional pencatatan persediaan barang Dinas Sosial P3AKB Bondowoso.
Co-Authors . Sumiharni Adira Salsabila Agus Ari Prasetyo Ahmad Herison Ahmad Labib Husain Ahmad Muzakki Al Arif Febrian Amanda Urmilatus Sifana Amelia Nurul Damayanti Anggun Dwi Cahyani Fitri Annika Lukitawati Annisa Delia Putri Annisa Putri Dwi Septiansari Ardelia Zahirah Rahman Arif Dinaryoko Arya Jaya Sumbahan Ashfiya Salsabila Ashruri Ashruri Ashruri Aynuddin Aynuddin Ayu Ning Trias Pratiwi Badruzzaman Aji Bagus Mustofa Purna Bramesvara Arizona Brigitha Cindy Sitanaya Ciek Julyati Hisyam Damar Adi Perdana Datra Peta Saputra Dian Mira Fadela Dian Pratiwi didit kuswadi kuswadi Dwi Joko Winarno Dwi Winda Sari Dwijoko Winarno Dyah Indriana Kusumastuti Dyah Kusumastuti Eko Adi Saputra Endro P Wahyono Endro Prasetyo Wahono Erizal Tanjung Esty Handayani Fachrurrazie Fachrurrazie Fadli Imran Faishal Muhammad Hanun Faizah Fajar Destri Atmoko Fajar Hartantio Fanny Prawaka Farah Ahista Rahma Fitri Trisdiana Fuad Zikri Gatot Eko Susilo Geleng Perangin Angin Gita Putri Sadelina Giwa Wibawa Permana Haifa Muthi Hilma Lia Irfani I Iswan I Komang Tri Herdiana Ibnu Tuhu Pangestu Idharmahadi Adha Ikhfan Kurniyawan Irlin Safira Irvan Tegar Cesar Irwani Ninik Wijaya Iswan Iswan Ivana Aprili Andika Khansa Fay’i Safira lim, phohan Lintang Kurnia Aridini Lodewick Manurung Lovina Hasianna Tampubolon Lusmeilia Afriami Lusmeilia Afriani M Lucky Apriansyah Nawawi M Rizky Ismail M. Fahmi Rinaldi M. Haviz Mardiana Mardiana Mardiyansyah Mardiyansyah Margareta Welly Mariyanto Mariyanto Mesya Ashilah Miftahul Janna Miftahul Khoiri Muhammad Hendro Prawaka Muhammad Ijlal Ghaly Muhammad Naufal Agatha Muhammad Nur Kholiq Muhammad Sohib Muhammad Zaenal Arifin N. Rachma Nabilah Destin Amelia Nency Dwi Kusanti Nur Arifaini Ofik Taufik Purwadi Ofik Toupik Purwadi Panca Kurniawan Pusaka, Semerdanta Putri Mardiyanti Rahayu Sulistyorini Rama Dian Gani Rifki Ananda Saputro Riki Chandra Wijaya Riko Berli Ardian Rinaldi Pelawi Rini Puji Astuti Rio Dwi Septian Risdha Sagita Razak Rizki Lazuardi Prasetio Rizki Prinanda Umar Rizky Akhmad Dhani Rizqi Kurniawan Salman Farizi Sandy Kusuma Setyanto Setyanto Shelly Isya Ramadhani Sindu Abadi Sampurna Siti fitriatus Sholikhah4 Siti Khofidatur Rohmah Siti Nurul Khotimah Subuh Tugiono Sumiharni Sumiharni Suyadi Suyadi Syah, Aminudin Teguh Priadi Titik Ayuningsih Tri Budi Wibowo Tri Subakti Trisno Imany wahyu hadi kuncoro Wildayati Wittri Djasmasari Yohanes Martono Hadi Yohannes Martono Hadi Yuda Romdania Yuda Romdania