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All Journal JUTIS : Jurnal Teknik Informatika Unistek: Jurnal Pendidikan dan Aplikasi Industri AKSELERASI: Jurnal Ilmiah Nasional Journal of Community Service MEDICINUS Journal of Artificial Intelligence and Digital Business Influence: International Journal of Science Review
Johan Budiman, Johan
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Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Immunology & microbiology Industrial & Manufacturing Engineering Medicine & Pharmacology Neuroscience Public Health Social Sciences

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Analisis SWOT Pada Disain Prototype Sistem Informasi e-Recruitment Irsan, Muhammad; Budiman, Johan
Jutis (Jurnal Teknik Informatika) Vol 6 No 1 (2018): Jutis (Jurnal Teknik Informatika)
Publisher : Universitas Islam Syekh Yusuf

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33592/jutis.Vol6.Iss1.35

Abstract

Tujuan penelitian adalah membantu perusahaan dalam melakukan proses rekrutment karyawan. Dalam prosesrekrutment, diharapkan perusahaan bisa mendapatkan karyawan yang sesuai dengan kebutuhan dan ketentuan yang sudahdiputuskan. metode analisis menggunakan SWOT dan Perancangan system informasi ini menggunakan metode prototype.Hasil penelitian ini sudah diujicobakan menggunakan sampel data random dan terbukti jauh lebih efektif didalam prosesperekrutan baik dari segi efisiensi waktu maupun efektifitas terhadap mutu calon karyawan yang mengikuti prosesrekrutmen.
Analisa Produktivitas Pekerjaan Pracetak Segmental-Box Girder, Proyek Bogor Outer Ring Road Seksi II A Hardianti, Prita; Budiman, Johan
UNISTEK Vol 5 No 2 (2018): Agustus 2018 - Januari 2019
Publisher : UNIVERSITAS ISLAM SYEKH - YUSUF TANGERANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (720.494 KB) | DOI: 10.33592/unistek.v5i2.298

Abstract

Abstrak. Pada produksi Pekerjaan Pracetak Segmental - Box Girder Proyek Bogor Outer Ring RoadSeksi II A terdapat keunikan sistem manufaktur yang biasanya memproduksi berdasarkan jumlah targetyang akan dihasilkan namun pada kasus ini produksi dilakukan secara kontinu untuk menghasilkan 1span yang terdiri dari berbagai jenis segment box grider. Variasi urutan produksi box girder inilah yangakan berpengaruh terhadap durasi pekerjaan 1 span. Untuk mengurangi waste diperlukan suatuperencanaan dan analisa konstruksi yang baik agar waktu siklus produksi menjadi lebih singkat.Perencanaan yang baik didasarkan pada suatu simulasi berulang hingga didapat suatu unitproduktifvitas sebagai acuan pada tahap selanjutnya. Hasil simulasi sebanyak 300 kali menunjukan 1span yang terdiri dari 18 segment box girder dapat diproduksi selama 21 hari dengan asumsi tidakterjadi banyak delay. Dalam hal mempercepat proses produksi digunakan 5 cetakan sehingga dalam 21hari dapat memproduksi sebanyak 5 span.Kata kunci: produktivitas, box girder, perencanaan
Pengaruh Daya Beli Masyarakat dan Strategi Pemasaran Dalam Meningkatkan Hasil Penjualan Pada Bisnis Property Budiman, Johan
UNISTEK Vol 5 No 1 (2018): Februari - Juli 2018
Publisher : UNIVERSITAS ISLAM SYEKH - YUSUF TANGERANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1965.302 KB) | DOI: 10.33592/unistek.v5i1.277

Abstract

Bisnis properti di Indonesia telah berkembang semakin pesat, baik di Jakarta, Bandung,Surabaya dan beberapa kota besar lainnya, tetapi saat ini banyaknya property yang sedangmenghadapi masalah resiko pasar (market risk) dan resiko likuiditas (liquidity risk). Tujuanpenelitian ini adalah : untuk mengetahui adanya pengaruh yang positif antara daya beli masyarakatdalam meningkatkan hasil penjualan pada bisnis property, untuk mengetahui adanya pengaruh yangpositif antara strategi pemasaran dalam meningkatkan hasil penjualan pada bisnis property. Darihasil analisis pada tabel uji ANOVA atau nilai Ftest di dapati nilai Fhitung sebesar 26,653. Sedang Ftabel(∝ 0.05) untu N=30 adalah sebesar 0,29. Jadi Fhitung > Ftabel (∝ 0.05) atau 26,653 > 0,29, maka dapatdikatakan bahwa daya beli (X1) dan strategi pemasaran (X2) secara bersama-sama memangberpengaruh positif dan signifikan terhadap hasil penjualan (Y), nilai R (Index Determinasi) sebesar0,815. Hal ini menunjukan bahwa sebesar 81,5% pelayanan (X1) dan komunikasi (X2) secara simultan(bersama-sama) berpengaruh terhadap kepuasan pelanggan sedangkan sisanya sebesar 18,5%berhubungan dengan factor lainnya yang tidak teramati oleh penulis
Analisis Percepatan Waktu Dan Biaya Dengan Metode Time Cost Trade Off (TCTO) Nathasia, Cut Adinda; Budiman, Johan; Norman, Norman
UNISTEK Vol 9 No 1 (2022): Februari - Juli 2022
Publisher : UNIVERSITAS ISLAM SYEKH - YUSUF TANGERANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33592/unistek.v9i1.2185

Abstract

The construction project of Toll road is a strategic infrastructure project, because it is a national strategic project so the government has made an Acceleration Program for Accelerating Toll Road construction of approximately 1100 km and the government expectations that the toll road can be used immediately One of the analyze method can be used to analyze the project acceleration is the Time Cost Trade Off (TCTO). Analysis method which is processed from secondary data which aims to speed up the project completion time and analyze how the time can be shortened by adding a minimum cost toward activities that can be accelerate the time project. The alternative used for this method is the addition of overtime hours. After analyzing the project using the Time Cost Trade Off (TCTO) method, the acceleration of project completion was found to be 123 days from the normal 158 days with an efficiency of project time of 19% and also an optimum cost efficiency of 2%. Keywords : Toll Road, Shorten, Time Cost Trade Off (TCTO) Method, Cost and Time Relationship
IDENTIFIKASI KESADARAN DAN PERSEPSI MASYARAKAT TERHADAP PENCEMARAN Mn DI AIR TANAH DI SEKITAR TPA SUPIT URANG, JAWA TIMUR Rahayu , Mayang Manguri; Budiman, Johan; Machrunnisa; Hutagalung, Ira Rumiris; Andriani, Tetty
Journal of Community Service Vol 6 No 1 (2024): JCS, June 2024
Publisher : Ikatan Dosen Menulis

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56670/jcs.v6i1.205

Abstract

Tempat Pembuangan Akhir (TPA) Supit Urang Malang, yang berlokasi di Kelurahan Mulyorejo, Kecamatan Sukun, Malang, berperan sebagai pusat penanganan sampah di dalam kota. Sampah yang dikelola di TPA Supit Urang berasal dari berbagai wilayah layanan, mencakup sampah dari pasar, rumah tangga, taman, bisnis, industri kecil, dan sejumlah sumber lainnya. Seiring dengan berjalannya waktu, risiko pencemaran air tanah di sekitar TPA Supit Urang terus meningkat sejalan dengan operasional TPA. Pencemaran air tanah di sekitar lokasi tersebut tidak hanya disebabkan oleh limbah domestik, tetapi juga oleh faktor-faktor lain. Penelitian ini memiliki tujuan untuk mengidentifikasi perilaku dan persepsi masyarakat yang tinggal dalam radius kurang dari 2 km dari Tempat Pembuangan Akhir (TPA), terkait dengan pencemaran air tanah oleh TPA Supit Urang. Metode penelitian ini berfokus pada pengumpulan data primer melalui survei dan wawancara dengan melibatkan 100 responden, serta menggunakan data sekunder. Hasil survei menunjukkan bahwa sebagian besar responden mengalami masalah dengan air sumur mereka yang sering menguning pada musim tertentu. Dari segi persepsi masyarakat, sekitar 32% menganggap bahwa kondisi air tanah di sekitar TPA Supit Urang saat ini tercemar oleh besi atau mangan, 16% menyatakan kondisinya baik, sementara sisanya tidak mengetahui karena telah lama menggunakan air sumur tanpa ada keluhan kesehatan. Persepsi ini didasarkan pada kondisi air sumur warga, termasuk kejernihan dan bau air. Selain manajemen sampah, kondisi lingkungan sungai di sekitar TPA Supit Urang juga dipengaruhi oleh sistem sanitary landfill yang tidak terpelihara dan sanitasi yang kurang memadai. Untuk menjaga kualitas air tanah di TPA Supit Urang, masyarakat dan pihak terkait telah aktif melakukan pemeliharaan terhadap sistem sanitary landfill secara berkelanjutan. Kajian awal ini diharapkan dapat memberikan informasi awal yang bermanfaat dalam upaya pengelolaan kualitas air tanah sebagai sumber air baku yang melibatkan partisipasi masyarakat secara berkesinambungan.Kata Kunci: air tanah, pencemaran, sumur, kesadaran,sampah
Specific Waste Handling Pattern Strategies West Java Province Through The Approach In Policy Of Domestic Waste And Dangerous Toxic Materials Rahayu, Mayang Manguri; Machrunnisa; Budiman, Johan; Hutagalung, Ira Rumiris; Andriani, Tetty
INFLUENCE: INTERNATIONAL JOURNAL OF SCIENCE REVIEW Vol. 5 No. 3 (2023): INFLUENCE: International Journal of Science Review
Publisher : Global Writing Academica Researching and Publishing

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

Abstract

Domestic waste is the largest contributor to the amount according to waste criteria. So according to Law Number 18 of 2008 concerning Waste Management, household waste has special specifications in its handling patterns, the use of cleaning materials generally causes households to produce toxic and dangerous waste which is designated as specific waste. Specific waste itself is regulated in Government Regulation Number 27 of 2020 concerning Specific Waste Management. The urgency of specific household waste management is that the correlation between the two policies has not been studied. The analysis of the approaches to these two policies aims to implement the most appropriate pattern for handling domestic hazardous and toxic waste. Based on calculation results, the generation of hazardous and toxic household waste in the Regency/City of West Java Province is estimated at 416.47 tons/day and there is no special handling yet. The integrated handling pattern is still not operational because these two policies do not yet have a relationship study, because the special characteristics of these two types of waste are in contrast to their decomposition properties.
Tingkat Keberhasilan Reposisi Tertutup pada Fraktur Antebrachii di RS Bethesda Yogyakarta pada Tahun 2007–2013 Budiman, Johan; Sudharmadji; Hariatmoko; Pinzon, Rizaldy Taslim
MEDICINUS Vol. 33 No. 1 (2020): MEDICINUS
Publisher : PT Dexa Medica

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (239.253 KB) | DOI: 10.56951/medicinus.v33i1.2

Abstract

Forearm fracture defined as fracture that occurs in the forearm, where the radius and ulna bones are both broken. Forearm fracture is the most common type of fracture that occurs in children and adults. Traffic accident is one of the cause of this fracture. The initial approach in non-complicated forearm fracture is closed reduction with cast immobilization (conservative therapy). The aim of this study is to analyze the success rate of closed reduction of the forearm fracture at Bethesda Hospital of Yogyakarta. The study also examines the relationship between the type of fracture and the related success rate of closed reduction on forearm fracture as well as the distribution of forearm fracture at Bethesda Hospital, Yogyakarta. This is a descriptive study with cross-sectional design. Radiographs and medical records of patients with forearm fracture at Bethesda Hospital, Yogyakarta were analyzed retrospectively in the period of 2007-2013. The measured variables are the change in the degree of angulation, apposition changes, gap occurrences, and the presence of overlap between radiological examinations before and after closed reduction. Medical records are also analyzed after reduction is done. Data is statistically analyzed using Chi-Square method. The result shows that closed reduction of forearm fracture performed by emergency team of Bethesda Hospital Yogyakarta during the period of 2007-2013 was quite successful and there is a significant relationship between the type of fracture with the success rate of closed reduction of forearm fracture (p=0.003). Thus, closed reduction is a mainstay initial approach in the patients with forearm fracture. If it is not successful, then surgery can be performed.
The Effect of Curing Temperature on the Mechanical Characteristics of Paving Blocks with Fly Ash and Coconut Fiber Mixture for Road Pavements Isradi, Muhammad; Nashir, Muhammad Farras; Abdila, Syafiadi Rizki; Sumarno, Agung; Prasetyo, Agus Mudo; Budiman, Johan
RIGGS: Journal of Artificial Intelligence and Digital Business Vol. 4 No. 3 (2025): Agustus - October
Publisher : Prodi Bisnis Digital Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/riggs.v4i3.2347

Abstract

The increasing demand for environmentally friendly construction materials has encouraged the use of industrial and organic waste, such as fly ash and coconut fiber, as alternative additives in paving block production. This study aims to evaluate the effects of using fly ash as a partial cement replacement and coconut fiber as an additive on the mechanical strength and environmental aspects of paving blocks. The research method is experimental, based on SNI 03-0691-1996 and ASTM C109/C109M-21 standards. The mix variations consisted of 0%, 10%, 15%, and 20% fly ash, with an addition of 2% coconut fiber, using two curing methods: room temperature and water immersion. The compressive strength test results at 28 days showed that room temperature curing produced values of 11.07 MPa, 11.58 MPa, 12.85 MPa, and 12.06 MPa, respectively. Meanwhile, water immersion curing yielded 14.40 MPa, 14.89 MPa, 16.13 MPa, and 15.69 MPa. The highest flexural strength, 4.25 MPa, was achieved with a mixture of 10% fly ash and 2% coconut fiber cured by water immersion. The use of fly ash and coconut fiber not only enhances the mechanical strength of paving blocks but also contributes to reducing industrial and agricultural waste. This combination has proven effective in improving material performance while supporting sustainable development as an eco-friendly solution
Optimization of Fly Ash and GGBS Proportions in Paving Blocks for Compressive and Flexural Strength Pavements Biankalista, Intan Salma; Nabila, Nabila; Abdila, Syafiadi Rizki; Sumarno, Agung; Prasetyo, Agus Mudo; Budiman, Johan; Isradi, Muhammad
RIGGS: Journal of Artificial Intelligence and Digital Business Vol. 4 No. 3 (2025): Agustus - October
Publisher : Prodi Bisnis Digital Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/riggs.v4i3.2488

Abstract

The increasing demand for environmentally friendly infrastructure has encouraged innovation in construction materials that can reduce carbon emissions. One of the efforts undertaken is the utilization of industrial by-products such as fly ash and Ground Granulated Blast Furnace Slag (GGBS) as partial substitutes for cement in the production of paving blocks. This study aims to investigate the effect of varying fly ash and GGBS mixtures on the compressive and flexural strength of paving blocks, as well as to determine the optimal mixture proportion that meets structural strength standards for pavement applications, particularly in heavy vehicle parking areas. The experimental method employed four mixture variations of fly ash and GGBS in a 1:1 ratio, namely 0%, 7.5%, 15%, and 25% of the cement weight. Compressive strength tests were conducted at curing ages of 7, 14, and 28 days, while flexural strength tests were performed at 28 days. The results showed that the mixture containing 85% cement, 7.5% fly ash, and 7.5% GGBS achieved the highest compressive and flexural strength values, 21.5 MPa and 4.3 MPa, respectively. These values meet the quality requirements of Grade B as specified in SNI 03-0691-1996, indicating that the paving blocks are suitable for use in heavy vehicle parking areas. The findings demonstrate that the appropriate incorporation of fly ash and GGBS not only enhances the mechanical performance of paving blocks but also contributes to reducing cement consumption and carbon emissions. Thus, this research provides a significant contribution to the development of more sustainable.
ANALISIS PERUBAHAN PERILAKU MANGAN TERLARUT PADA LINDI SEBAGAI PENGARUH DARI SAMPAH PLASTIK Rahayu, Mayang Manguri; Wahyudianti, Rima; Machrunnisa; Hutagalung, Ira Rumiris; Budiman, Johan; Andriani, Tetty; Notodarmojo, Suprihanto
AKSELERASI: Jurnal Ilmiah Nasional Vol 6 No 3 (2024): AKSELERASI: JURNAL ILMIAH NASIONAL
Publisher : GoAcademica Research dan Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54783/jin.v6i3.1072

Abstract

Mangan terlarut dalam lindi dapat menurunkan kualitas air tanah di sekitarnya. Potensi pencemaran air tanah bersumber dari pencemaran tanah dan air atau zat cair yang teralir pada mekanisme air tanah, salah satunya di Tempat Pembuangan Akhir atau TPA. Maka dari itu, perlu dibuat suatu pemodelan untuk mengukur potensi pencemaran air tanah yang berdasarkan reaksi tanah dengan lindi serta bagaimana mekanisme aliran air tanah menuju akifer. Sebelum menganalisis pencemaran air tanah, maka penting untuk menganalisa potensi pencemaran. Lindi merupakan parameter yang berperan dalam pencemaran air tanah. Dapat dikatakan lindi adalah hasil kontaminan yang berasal dari sampah yang berpotensi mengalami perilaku khusus secara fisik, kimia, dan biologisnya dari Sampah yang tertimbun. Lindi mengandung pH yang asam hingga basa, zat organik, logam berat, dimana pH adalah parameter signifikan terhadap perubahan kelarutan Mangan terutama Mangan valensi 2(Mn2+). Mikroplastik melepaskan gas etilen sehingga melepaskan zat pembusuk dimana saat pembusukan terjadi fase asam yang menjadikan mangan lebih terlarut. Mangan terlarut fasenya stabil, sehingga lebih berbahaya pada kelarutan Mangan dalam sumber air.
Co-Authors Abdila, Syafiadi Rizki Andriani, Tetty Biankalista, Intan Salma Djamaludin Djamaludin, Djamaludin Hardianti, Prita Hariatmoko Hendardie, Saesar Ira Rumiris Hutagalung Machrunnisa Muhammad Irsan Muhammad Isradi Nabila, Nabila Nashir, Muhammad Farras Nathasia, Cut Adinda Norman Norman Prasetyo, Agus Mudo Rahayu , Mayang Manguri Rahayu, Mayang Manguri Rizaldy Pinzon Sudharmadji Sumarno, Agung Suprihanto Notodarmojo Wahyudianti, Rima