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All Journal J-Sil (Jurnal Teknik Sipil dan Lingkungan) MEDIA KONSERVASI Jurnal Hidrolitan Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan MEDIA KOMUNIKASI TEKNIK SIPIL Jurnal Ilmu Lingkungan Teknotan: Jurnal Industri Teknologi Pertanian Teknik Mesin "TEKNOLOGI" Jurnal Keteknikan Pertanian Journal of Degraded and Mining Lands Management Rekayasa Sipil Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Jurnal Aplikasi Bisnis dan Manajemen (JABM) E-Journal Jurnal Rekayasa Sipil Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Civil Engineering Dimension Jurnal Irigasi Jurnal Manajemen Aset Infrastruktur dan Fasilitas Jurnal Budaya Etnika Jurnal Edukes: Jurnal Penelitian Edukasi Kesehatan Jurnal Teknik Mesin, Industri, Elektro dan Informatika International Journal of Economics and Management Sciences J-Sil (Jurnal Teknik Sipil dan Lingkungan) Jurnal Teknik Sipil
Erizal ,
Departemen Teknik Sipil Dan Lingkungan IPB
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Public Health Social Sciences Transportation Other

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The Effect of Promotional and Prices on Consumer Satisfaction as Mediated by Service Quality at Akela Meubel, Medan City Erizal Erizal; Elfitra Desy Surya
International Journal of Economics and Management Sciences Vol. 2 No. 1 (2025): International Journal of Economics and Management Sciences
Publisher : Asosiasi Riset Ekonomi dan Akuntansi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/ijems.v2i1.479

Abstract

This study aims to examine and analyze the impact of promotions and prices on customer satisfaction, mediated by service quality in Medan City. The research is quantitative in nature, using an accidental sampling technique. Data collection was done through questionnaires and interviews. Data analysis was performed using SMART PLS. The population consisted of 50 respondents, all of whom were included as the research sample. The findings reveal that promotion has a positive and significant effect on service quality in Medan furniture stores. Price also positively and significantly impacts service quality at Akela Meubel in Medan. Promotions positively and significantly influence customer satisfaction at Akela Meubel, while price has a positive and significant effect on customer satisfaction in Medan furniture. Furthermore, promotion positively and significantly affects customer satisfaction at Akela Meubel in Medan through service quality, and price positively impacts satisfaction through service quality at Medan furniture.
Vegetation Density, Root Architecture Model, and Hydrodynamic Simulation Rhizophora apiculata Bl. in Bone Bay, South Sulawesi Rustam, Aswar; Qayim, Ibnul; Erizal, .
Media Konservasi Vol. 22 No. 1 (2017): Media Konservasi Vol. 22 No. 1 April 2017
Publisher : Department of Forest Resources Conservation and Ecotourism - IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (280.528 KB) | DOI: 10.29244/medkon.22.1.19-25

Abstract

Mangrove is the only ecosistem that grows and develops in the coastal area. This study was conducted to analyze the mangrove forest vegetation to create a simulation of the root sistem of Rhizophora apiculata Bl. related to its ability in the process of hydrodynamic fluid of seawater in the Lompo village, District Awangpone, Bone Regency, South Sulawesi. Criteria that used as a model reference had minimum age approximately five years and minimum height of about 2 m. The variables that measure were height, diameter, and length of the roots. The parameters of the simulation are the average speed of sea level, the dynamic pressure of seawater, as well as drag coefficient of Gulf of Bone. Based on this research, vegetation area with highest density located at second kilometer, medium density located at first kilometer, and the lowest density located at third kilometer. The average velocity of seawater, the lowest is in the natural cropping pattern of highest density, meanwhile the highest is in the parallel cropping pattern of lowest density. Dynamic pressure, the lowest is in the natural cropping pattern of highest density, meanwhile the highest is in the parallel cropping pattern of lowest density. The drag coefficient, the highest is in the natural cropping pattern of highest density, meanwhile the lowest is in the parallel cropping pattern of lowest density. Keywords: drag coefficient, hydrodynamics, mangrove, Rhizophora apiculata Bl., simulation
Evaluasi Struktur Gedung X di Jakarta Berdasarkan SNI 03-1726-2012 Ketahanan Gempa untuk Struktur Gedung Fauzan, Sayed Ahmad; Erizal, ,; Sapei, Asep
Jurnal Teknik Sipil dan Lingkungan Vol. 3 No. 1: April 2018
Publisher : Departemen Teknik Sipil dan Lingkungan IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jsil.3.1.11-24

Abstract

Earthquake risk in Jakarta is one of intermediate category in Indonesia based on the 2010 seismic hazard map published by the Ministry of Public Works of Republic Indonesia. The purpose of this research was to know the ultimate performance limit of the existing X building in Jakarta. Evaluation of these building was based on guidelines SNI 03-1726-2012, SNI 03-2847-2013 and PPPURG 1987. The structure model of X building was designed and analyzed using ETABS Version 9.7.2. The result showed value of story drift was affected by dynamic response spectrum load, the maximum drift in x–direction is 68.60 mm and y–direction is 101.2 mm. The X building was declared unsafe in performance condition of the ultimate limits. It was important to know the condition of the building that would be affected by earthquake load and to prevent collapse of the building structures that could cause loss of live people in the building and the collisions between buildings. Keywords : building, earthquake, respon spectrum analysis, story drift.
Analisis Kekerasan pada Press Cage Setelah Perlakuan Panas Dengan Suhu 8500c Quenching Dengan Oli Sae 40 Dan Air Laut Rahmat Hidayat; Erizal Erizal; Muhammad Halil
Jurnal Teknik Mesin, Industri, Elektro dan Informatika Vol. 4 No. 2 (2025): JURNAL TEKNIK MESIN, INDUSTRI, ELEKTRO DAN INFORMATIKA
Publisher : Pusat Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jtmei.v4i2.5627

Abstract

This study aims to analyze the effect of heat treatment on the hardness level of ST 37 steel material used in the press cage component, particularly after quenching using two different cooling media: seawater and SAE 40 oil. The press cage is a crucial component in screw press machines that operates under high pressure and requires optimal mechanical strength, including sufficient material hardness. The research method involved heating the specimens at 850°C for 30 minutes, followed by quenching using each of the cooling media. Hardness testing was conducted using the Rockwell method at five test points on each specimen. The results showed that the untreated specimen had an average hardness value of 72.3 HRC. After heat treatment and quenching, hardness significantly increased, with an average value of 93.8 HRC for specimens cooled in seawater and 84.3 HRC for those cooled in SAE 40 oil. The highest hardness was achieved using seawater due to its rapid cooling rate, which promotes the formation of martensitic structures. In contrast, quenching with SAE 40 oil produced lower hardness results because of its slower heat dissipation process. These findings indicate that the type of cooling medium has a significant impact on the mechanical properties of the material after heat treatment.
EKSISTENSI ALAM MINANG DALAM LUKISAN SENIMAN SUMATERA BARAT Erizal Erizal; Ibrahim Ibrahim; Satriyadi Satriyadi; Khairun Nisa
Jurnal Budaya Etnika Vol. 2 No. 2 (2018): Momen Kreatif, Ekspresi, dan Keberagaman Etnik
Publisher : Institute of Indonesia Arts and Culture (ISBI) Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26742/be.v2i2.1158

Abstract

ABSTRACT This study aims to record painting artists in West Sumatra who have worked with the Minangkabau concept. The method used refers to qualitative research methodology, namely observation, interviews and literature. Then for the research report, the collected data is presented based on citation data such as words / sentences and data in the form of interview scripts, field notes, photos, videos, personal documents or other official documents. The theory used refers to the opini of Kartodirjo, Becker, and Dwi Marianto.The presence of painting artists who raised the theme of Minangkabau nature such as: Kamal Guci, Afianto Arifin, Evalyna Dianita, Idran Wakidi, Yazid. Painting artists who work with this Minangkabau concept still exist to maintain their style of work, and not a few of art appreciators like or collect the work of the artist. It can be concluded that the presence of artists like this is very helpful in preserving the art of painting in West Sumatra which has been pioneered long time ago by painters like Wakidi and M.Syafei. Keywords: Minangkabau, Concept, Painting, West Sumatra.  ABSTRAK Penelitian ini bertujuan mendata seniman lukis di Sumatera Barat yang eksis berkarya dengan konsep Minangkabau. Metode yang dipakai merujuk pada metodologi penelitian kualitatif, yaitu pengamatan, wawancara dan kepustakaan. Kemudian untuk laporan penelitian, data-data yang terhimpun disajikan berdasarkan kutipan data baik berupa kata/kalimat maupun data berupa naskah wawancara, catatan lapangan, foto, video, dokumen pribadi ataupun dokumen resmi lainnya. Teori yang digunakan merujuk kepada pendapat Kartodirjo, Becker, dan Dwi Marianto.Kehadiran seniman lukis yang mengangkat tema alam Minangkabau seperti: Kamal Guci, Afianto Arifin, Evalyna Dianita, Idran Wakidi, Yazid. Seniman lukis yang berkarya dengan konsep Minangkabau ini masih eksis mempertahankan corak karya mereka, dan tidak sedikit para penikmat seni menyukai atau mengoleksi karya seniman tersebut. Dapat disimpulkan bahwa kehadiran seniman seperti ini sangat membantu dalam dalam pelestarian seni lukis di Sumatera Barat yang sudah dirintis jauh hari oleh pelukis Wakidi dan M.Syafei. Kata Kunci: Minangkabau, Konsep, Seni Lukis, Sumatera Barat.
Evaluasi Kinerja Seismik Struktur Menara Sabilulungan 99 Kabupaten Bandung dengan Metode Analisis Statis Nonlinear Pushover Erizal Erizal; Naufal Rifqi Arrafi; Sekar Mentari
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 30, Nomor 2 (2024)
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v30i2.65172

Abstract

Salah satu wilayah dengan kerawanan gempa bumi yang tinggi adalah Pulau Jawa. Menara Sabilulungan 99 yang terletak di Kabupaten Bandung ini merupakan menara dengan struktur beton bertulang yang memiliki sistem rangka pemikul momen. Periode struktur yang dimiliki adalah sebesar 2,6 detik. Rasio partisipasi massa yang diperoleh mencapai nilai di atas 90% baik arah x dan arah y pada ragam getar ke 9. Gaya geser dasar yang diperoleh ketika titik performa tercapai dalam analisis pasca-elastik adalah sebesar 10402,90 kN untuk arah x dan 10178,88 kN untuk arah y. Perpindahan lateral atap pada arah x dan arah y masing-masing adalah sebesar 568,53 mm dan 602,51 mm ketika titik performa struktur tercapai. Berdasarkan parameter deformasi struktur pada acuan ATC 40 dan FEMA 356, tingkat kinerja struktur merupakan Life Safety (LS). Daktilitas yang dimiliki struktur pada arah x dan y masing-masing adalah sebesar 1,7 dan 2,4 sehingga struktur tergolong ke dalam daktilitas rendah pada arah x dan daktilitas sedang pada arah y.
Peningkatan Efisiensi Biaya Pembangunan Gedung Bertingkat Dengan Aplikasi Building Information Modeling (BIM) 5D Faqih Nadiya Umam; Erizal Erizal; Heriansyah Putra
Teras Jurnal : Jurnal Teknik Sipil Vol. 12 No. 1 (2022): Volume 12 Nomor 1, Maret 2022
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v12i1.704

Abstract

Abstrak Sebagian besar perusahaan konstruksi di Indonesia saat ini masih menggunakan aplikasi konvensional yang dilakukan secara terpisah. Akibat yang sering ditemukan dari penggunaan aplikasi konvensional terfragmentasi antara lain adanya limbah kontruksi dan keterlambatan informasi yang menyebabkan inefisiensi biaya dan waktu. Oleh karena itu, dibutuhkan suatu sistem integrasi yang dapat menjawab permasalahan tersebut. Salah satu teknologi yang telah muncul untuk menjawab permasalahan adalah Building Information Modeling (BIM). Penelitian ini dilakukan dengan simulasi pemodelan dan perhitungan untuk mengevaluasi akurasi dan efisiensi biaya penggunaan aplikasi BIM 5D dibandingkan dengan metode konvensional pada pekerjaan besi dan beton. Simulasi proyek dilakukan pada apartment 16 lantai. Hasil penelitian ini menunjukkan penggunaan aplikasi BIM 5D dapat mengurangi biaya tenaga kerja sebesar Rp171.989.939,00 atau menghemat 6,33%. Nilai efisiensi volume pekerjaan beton fc30 MPa, beton fc35 MPa, dan pekerjaan besi tulangan masing-masing sebesar 7,21%, 10,87%, dan 5,98%. Total efisiensi biaya yang didapatkan sebesar Rp406.697.000,00. Biaya tersebut sangat besar dibandingkan biaya investasi aplikasi BIM 5D seharga Rp127.000.000,00. Kata kunci: Aplikasi BIM 5D, Building Information Modeling, Efisiensi Biaya Abstract Most construction companies in Indonesia currently still use conventional applications that are carried out separately. The consequences that are often found from the use of fragmented conventional applications include construction waste and delays in the information that cause cost and time inefficiencies. Therefore, an integrated system is needed to answer these problems. One technology that has emerged to answer these problems is Building Information Modeling (BIM). This research was conducted by modeling simulations and calculations to evaluate the accuracy and cost-efficiency of using the BIM 5D application compared to conventional methods in rebar and concrete work. The project simulation was carried out on a 16-floor apartment. As a result, the use of the BIM 5D application can reduce labor costs by Rp171,989,939.00 or save 6.33%. The efficiency values of fc'30 MPa concrete work, fc'35 MPa concrete, and rebar work are 7.21%, 10.87%, and 5.98%, respectively. The total cost-efficiency obtained is Rp406,697,000.00. This cost is huge compared to the investment cost of the BIM 5D application for Rp127,000,000.00. Keywords: BIM 5D application, Building Information Modeling, Cost Efficiency
Co-Authors A. Sapei, Adan Kamarudin Agus Eko Handoko Ahmad Rifqi Asrib Ahmad Ulil Albab Allen Kurniawan Aprialdi, D. Arief Budiman Asep Sapei Aswar Rustam Avazbek Ishbaev Bambang Pramudya Budi Indra Setiawan Budi Kuncahyo Chusnul Arif E. N. Sembiring, Elfitra Desy Surya Faqih Nadiya Umam Fata, Yulia Amirul Fazrina Andriani Sakinah Lubis Febrita, Joana Fikali Maklas Gani Soehadi Hadi Nasbey Hasan Firdaus Hendrayanto . Herry Suhardiyanto IBNUL QAYIM Ibrahim Ibrahim Irman Hermadi Jenck, O. Kevin Philips Barakati Khairun Nisa Kudong Boro Seminar Lambert, S. Leopold O. Nelwan M Yanuar J Purwanto M. H.B. Djoefrie. Mark L. Sibag Muh. Sakti Muhammadiah Muhammad Fauzan Muhammad Halil Muhammad Hilmi Naresworo Nugroho Naufal Rifqi Arrafi Nora H. Pandjaitan Nova Anika Purwo Mahardi Putra, Heriansyah Rahmat Hidayat Satriyadi Satriyadi Satyanto Krido Saptomo Sayed Ahmad Fauzan Sayed Ahmad Fauzan Sayed Ahmad Fauzan, Sayed Ahmad Sefta Mega Nurasih Sekar Mentari Setyo Pertiwi Sukandi S Sultono Sultono Suria Darma Tarigan Takeshi Katsumi Tri Sudibyo Widyarti, M. WINDU NUR AZZUKHRUF SIADARI Y. I. Intara, Yanuar Chandra Wirasembada Yayu Romdhonah Yudi Chadirin Yulia Amirul Fata