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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 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 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)
Erizal ,
Departemen Teknik Sipil Dan Lingkungan IPB
Agriculture, Biological Sciences & Forestry 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.
Co-Authors , Elfitra Desy Surya A. Sapei, Adan Kamarudin Agus Eko Handoko Ahmad Rifqi Asrib Ahmad Ulil Albab Allen Kurniawan Aprialdi, D. Arief Budiman Asep Sapei Avazbek Ishbaev Bambang Pramudya Budi Indra Setiawan Budi Kuncahyo Chusnul Arif E. N. Sembiring, Fata, Yulia Amirul Fazrina Andriani Sakinah Lubis Fikali Maklas Gani Soehadi Hadi Nasbey Hasan Firdaus Hendrayanto . Herry Suhardiyanto IBNUL QAYIM Irman Hermadi Jenck, O. Joana Febrita Kevin Philips Barakati 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 Nora H. Pandjaitan Nova Anika Purwo Mahardi Putra, Heriansyah Rahmat Hidayat Rustam, Aswar Satyanto Krido Saptomo Sayed Ahmad Fauzan Sayed Ahmad Fauzan Sayed Ahmad Fauzan, Sayed Ahmad Sefta Mega Nurasih 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