Journal Transformation of Mandalika, e-ISSN: 2745-5882, p-ISSN: 2962-2956

Analisis pengaruh penambahan shear wall terhadap kinerja struktur ruko pada proyek citraland sampali

2026-10-12T02:51:02+00:00

The need for commercial buildings such as houses and shop-houses has increased significantly. This study aims to analyze the effect of adding a shear wall on the structural performance of a shop-house building in the Citraland Sampali Project. The problem is focused on comparing the structural response to seismic loads before and after adding a shear wall based on pushover analysis. To approach this problem, theoretical references from SNI 1726:2019 on seismic resistance planning for buildings and the ATC-40 method for determining structural performance levels were used. Data were collected through field observation, technical building data from the developer, and a literature review of related journals and theses, then analyzed quantitatively using SAP2000 software. The results show that the structure without a shear wall produced a maximum displacement of 0.177016 m in the X direction and 0.152827 m in the Y direction, with story drift values of 0.011494 and 0.009923, while the structure with a shear wall produced displacements of 0.130567 m and 0.133305 m, with story drift values of 0.00847 and 0.00865. Both models fall within the Immediate Occupancy (IO) performance level according to ATC-40. This study concludes that adding a shear wall significantly increases lateral stiffness, reduces deformation, and optimizes the seismic performance of the shop-house structure compared to without a shear wall.

Pengaruh literasi keuangan dan gaya hidup terhadap pengelolaan keuangan mahasiswa (Studi Kasus Program Studi Administrasi Bisnis Universitas Almuslim)

2026-10-12T02:58:46+00:00

Personal financial management is an important competency for university students because the college period represents a transition toward greater independence in making economic decisions. Students are required to allocate limited financial resources to various needs, including education, food, transportation, communication, social activities, entertainment, and other personal necessities. Under these conditions, financial literacy and lifestyle are considered important factors that may influence students’ ability to plan, allocate, control, and evaluate their financial resources. This study aims to examine the effect of financial literacy and lifestyle, both partially and simultaneously, on the financial management of Business Administration students at Almuslim University. The research employed a quantitative approach using questionnaires as the primary data collection instrument and multiple linear regression analysis processed with SPSS 25. Based on the available statistical output, the regression equation is Y = 2.924 + 0.610X1 + 0.309X2. Financial literacy has a regression coefficient of 0.610 with a significance value of 0.000, while lifestyle has a coefficient of 0.309 with a significance value of 0.002. Therefore, both variables have statistically significant partial effects on students’ financial management. Simultaneously, financial literacy and lifestyle significantly affect students’ financial management, as indicated by an F-statistic of 74.351 and a significance value of 0.000. The Adjusted R Square value of 0.727 indicates that 72.7% of the variation in students’ financial management can be explained jointly by financial literacy and lifestyle, while the remaining 27.3% is explained by other factors outside the research model. The findings emphasize that strengthening students’ financial knowledge should be accompanied by the development of responsible lifestyle patterns and spending control.

Analisis downtime paper machine 7 menggunakan overall equipment effectiveness (OOE) dan failure mode and effects analysis (FMEA) di PT fajar surya wisesa TBK

2026-10-30T01:18:56+00:00

This study aims to analyse downtime on Paper Machine 7 at PT Fajar Surya Wisesa Tbk. using Overall Equipment Effectiveness (OEE) and Failure Mode and Effects Analysis (FMEA). Based on operational data for January?December 2025, total downtime was 137,033 minutes (2,283.88 hours), consisting of 63,569 minutes of planned downtime and 73,464 minutes of unplanned downtime.Loading Time of 462,031 minutes and Operating Time of 388,567 minutes resulted in Availabilityof 84.10%. Aggregate Performance was 98.36%, based on actual speed and ideal speed according to product basis weight, while aggregate Quality was 85.67%. Therefore, aggregate OEE for 2025 was 70.87%. Unplanned downtime was dominated by Wet End Cleaning (17,396 minutes; 23.68%), Mechanical Breakdown (14,767 minutes; 20.10%), and Dry End Cleaning (11,855 minutes; 16.14%), with a cumulative contribution of 59.92%. FMEA of five failure modes identified Mechanical Breakdown with the highest RPN of 378 (S=9, O=7, D=6), followed by Wet End Cleaning 360,Dry End Cleaning 280, Dryer Trouble 270, and Canvas Repair & Change 240. The integrated resultsindicate that reducing unplanned downtime, strengthening preventive maintenance and condition monitoring, and controlling cleaning activities are proposed improvements for Paper Machine 7.

Analisis penyebab kegagalan sistem pengereman pada kejadian runway excursion pesawat cessna-208b di bandar udara ilaga

2026-10-30T01:32:35+00:00

Aviation safety is a primary and absolute aspect of air transportation operations. Optimal performance of aircraft mechanical systems is an absolute requirement for the prevention of aviation accidents. One of the most critical components is the braking system, particularly during the landing roll phase. The failure of the braking system to adequately absorb kinetic energy can be fatal, especially at pioneer airports such as Ilaga Airport (WAYL), which has a very short runway and extreme elevation. This research is motivated by the runway excursion incident involving a Cessna 208B aircraft registered as PK-PPI on August 25, 2025. Based on Mandatory Occurrence Report (MOR) data, the aircraft failed to decelerate post-landing and continued to travel freely even though the pilot had applied the brakes and reverse thrust. This study aims to deeply analyze the mechanical condition of the braking system prior to the incident, assess the compliance level of the brake lining component maintenance execution with applicable regulations, and identify the primary causal factors and systemic root causes of the reduction in braking effectiveness that led to the incident.This study employed a descriptive qualitative approach with a documentary study and open-ended questionnaire design. The research object focused on the technical maintenance track record of the PK-PPI fleet's braking system and personnel compliance with airworthiness regulations. Secondary data sources were obtained from official Directorate General of Civil Aviation documents, which include the MOR report, Cessna 208 Series Aircraft Maintenance Manual (AMM) Chapter 32, Aircraft Flight and Maintenance Log (AFML) documents, and Circular Letter of the Director General of Civil Aviation Number SE 01 of 2023. To validate factual findings scientifically, Data Triangulation was conducted through Expert Judgement involving practitioners holding an Aircraft Maintenance Engineer License (AMEL). The data analysis technique was carried out using Root Cause Analysis (RCA) through a Fishbone Diagram mapping to dissect the dimensions of Manpower, Method, Material, Measurement, and Environment. After static factors were set aside, the analysis continued vertically using the 5 Whys Analysis method to find the deepest causality chain of the deviations that triggered the systemic failure.The research results through the Fishbone Diagram mapping showed that the braking failure was triggered by three interconnected operational deviations. In the Method dimension, there was a delegation of brake component testing work instructions to the pilot without a standardized technical handover Standard Operating Procedure (SOP). In the Manpower dimension, this procedural weakness was exacerbated by the lack of supervision, physical verification, and direct assistance by the mechanic (LAME) on the ground. In the Measurement dimension, administrative validation of the aircraft's airworthiness documents was neglected. Based on the 5 Whys Analysis, the systemic root cause of this incident was the collapse of the Quality Gate system (Final Airworthiness Supervision). LAME prematurely issued a Return to Service (RTS) approval even though there was no specific recording log regarding the New Brake Burn-In testing, and the absence of a validation signature from the pilot in command (PIC) in the AFML Rectification column was ignored. This direct violation of Circular Letter SE 01 of 2023 became a fatal flaw that allowed the aircraft to fly in an un-airworthy condition, thereby triggering the Brake Glazing phenomenon on the runway. As a mitigation measure, it is recommended to enforce discipline in filling out the AFML through strict field inspections by Quality Assurance, optimize Refresher Training related to the Circular Letter and AMM mandates, and supervise the obligation of the technician's physical presence to validate component effectiveness on the apron before the airworthiness document is signed and issued.

Korelasi point load index dan uniaxial compressive strength formasi kampungbaru daerah batuah site PT karya putra borneo kabupaten kutai kartanegara provinsi kalimantan timur

2026-10-30T02:53:35+00:00

This study aims to determine the correlation between Point Load Index (PLI) and Uniaxial Compressive Strength (UCS) values in the Kampung Baru Formation located in Batuah Village, PT Karya Putra Borneo Site, Kutai Kartanegara Regency, East Kalimantan Province. The research employed a quantitative method through laboratory testing of rock samples consisting of coal, claystone, and siltstone. The tests conducted included physical properties, Point Load Index (PLI), and Uniaxial Compressive Strength (UCS). Data analysis was carried out using simple linear regression to determine the correlation between PLI and UCS values for each lithology. The results showed that the average PLI values were 0.2180 MPa for coal, 0.2491 MPa for claystone, and 0.1422 MPa for siltstone. Meanwhile, the average UCS values were 7.17 MPa for coal, 2.47 MPa for claystone, and 0.29 MPa for siltstone. The correlation between PLI and UCS demonstrated a very strong positive linear relationship with coefficients of determination (R²) of 0.9899 for coal, 0.9655 for claystone, and 0.8834 for siltstone. The regression equations obtained were UCS = 25.247(Is50) for coal, UCS = 9.4572(Is50) for claystone, and UCS = 2.0523(Is50) for siltstone. These findings indicate that the PLI value can be used as an estimation method for UCS values in the study area.