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    Redecoration and Room Makeover Tendencies

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    This research was conducted by using the result of a practical examination for Home Décor enrichment class in Interior Design Department 100 undergtaduate tudents consisting of interior design students and non-interior design students were each assigned to redecorate or makeover one specific room or spot within their home. The students were asked to provide the before and after pictures of the room that they had redecorated. A quantitative study method is used in this research. The result pictures from the assignment are then observed one by one and put in a digital questionnaire and deducted as data. The aim of this study is to observe the tendencies of redecorating and room makeover, to see how much of these redecorating and makeover tendencies would affect the end result of the redecorated room. The research shows that an optimum redecoration and makeover results from a combination of change in both interior elements (interior form and interior filler), reorganizing positions of interior filler and also adding or removing items from the room

    Application Of a Combination of AHP and TOPSIS Methods in Shipyard Selection

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    Choosing a shipyard that does not meet the requirements can affect ship building process. Incompatibility of construction process can cause delays in completion time or delivery of ship to shipowner. The resulting delays can affect reputation of shipowner because they cannot fulfill their cargo delivery services, where cargo contract is generally carried out before ship is handed over from shipyard to shipowner. Delays will also affect insurance providers, both ship and cargo insurance. A stricter evaluation from insurance company could result in an increase in premiums charged due to risks that will be faced in the future. The aim is to determine priority of shipyards that will be appointed for ship construction in Batam area. Because shipyard selection does not only involve quantitative but also qualitative variables, Multi-Criteria Decision Making (MCDM) method was used in this research. Method used in selection is a combination of Analytical Hierarchy Process (AHP) and Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS). AHP is used to determine weight of the criteria and sub-criteria used in selection, while TOPSIS is used to determine shipyard selection priorities based on weight of criteria and sub-criteria that have been generated from AHP process. Respondents in this study were representatives of three ship owners, consisting of two technical managers and one deputy general manager. Based on the results of the analysis of six shipyards in Batam area, a priority order of shipyards recommended for ship construction by company was obtained. Sensitivity analysis also shows that the results produced in shipyard selection are quite robust

    Studi Kinetika Adsorpsi : Pemanfaatan Limbah Biji Pepaya (Carica papaya L.) sebagai Adsorben Ion Logam Cd(II) dan Pb(II) Pada Limbah Dengan Metode Batch

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    Currently, papaya seed waste (Carica papaya L.) is very abundant and easy to obtain because papaya is included in the fruit group whose harvest season is throughout the year. Papaya seeds are also included in a sustainable energy source. This research aims to study the adsorption kinetics of papaya seed adsorbents on Cd(II) and Pb(II) metal ions in laboratory waste. Several innovations were made including variations in adsorbent mass, contact time and pH. Optimum absorption efficiency of Cd(II) metal occurs with an adsorbent weight of 4 grams, equilibrium time of 90 minutes and pH 7. Papaya seed adsorbent is able to absorb Cd(II) metal ions up to 0.138 mg/g with a maximum absorption of 103.66%. Whereas for Pb(II) metal occurs at the optimum condition of adsorbent weight of 1 gram, equilibrium time of 60 minutes and pH 6. These conditions are able to adsorb up to 1.037 mg/g with absorption efficiency reaching 91.31%. The results of processing the kinetic data showed that the adsorption kinetics of Cd(II) followed the Pseudo Second Order model with an initial absorption rate of 0.1710 mg/g min. Whereas for metal Pb(II) follows the Elovich model with an initial adsorption rate of 0.045 mg/g min and a covered surface area of 2.8993 (g/mg). The implementation of waste was able to adsorb 0.122 mg/g of Cd(II) metal ions with 79.42% absorption and 0.993 mg/g of Pb(II) metal ions with 99.60% absorption

    Aplikasi Estimasi Biaya Bangunan Gedung Berdasarkan Analisa Harga Satuan Pekerjaan Berbasis Macro Excel

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    Estimating construction project costs is usually done manually; it takes a long time, and the more comprehensive the estimate, the more manual calculations must be performed, increasing the risk of human errors. This study aims to make a building cost estimation application using the 2022 Work Unit Price Analysis (AHSP), based on excel macros, so that cost estimates become more accurate and efficient. The first step is to design the framework and application design and then analyze the database requirements. The second step: database creation and application interface design. The third step: testing, validation, and verification on two building projects in 2022. The estimation results of this application are very accurate and efficient, where the total cost is Rp. 382,998,432.00, while the bid price is Rp. 383,000,000.00. There is a difference in calculation costs compared to the bid price, which is Rp. 1,568.00 (0.00041%)

    Review of Business Actor’s Financial Behavior in the Ultra Micro Segment

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    Micro, Small, and Medium Enterprises (MSMEs) have an essential role in the Indonesian economy due to their high economic resilience and contribute to gross domestic product and increased employment. The number of MSMEs reached 65.47 million units in 2019, or 99.99% of the total business in Indonesia, including the Ultra Micro (UMi) segment. The banking sector targets around 57 million UMi segment customers, but 30 million of them do not have access to formal funding sources because they are underprivileged and unbanked communities. Banking provides various services for business actors in the UMi segment regarding financing, deposits, and transactions. However, they have not been widely accessed and utilized due to a lack of understanding of these services. This study aims to recommend marketing strategies based on financial behavior and the needs of the UMi segment in banking services. The approach taken is Design Thinking. Data was collected through in-depth interviews with 8 (eight) respondents of the UMi Segment business actors aged 21–55 years, with a maximum turnover of IDR10 million a month. The findings of the study reveal the crucial role of friends and neighbors; the lack of clarity in recording transaction data; the vulnerability in financial management; the shame of saving "small money" at formal institutions; the tendency to pawn in gold shops; and reluctance to deal with financial services if they have to stop working temporarily

    Joint Types of Keel and Frame of Wooden Boats Built with Modular System

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    The ocean's potential has not been fully exploited to date, with only 40 per cent of the ocean's potential being used. This is due to inadequate facilities and infrastructure. The lack of infrastructure and facilities is due to many factors. One of them is the lack of fishing boats compared to the existing potential. This is because it takes a long time to build a fishing boat. In addition, the existing fishing boats are not powerful enough to travel up to 200 nautical miles. The way out of these problems is to build wooden boats using a modular system. This modular system is expected to produce fishing boats quickly but with a qualified construction. The problem in the production process with this modular system lies in the connection between the keel and the frame. The joint is a critical part in the construction of wooden boats where the joint must be able to withstand dynamic loads. The advantage of wooden boats built with this modular system is that the production process is relatively shorter, which can reduce production costs. The results of tests carried out have shown that the tongue-and-groove type of joint on the keel has a better bending test than the oblique hook type of joint used by traditional boatbuilders. The frame connection type with internal reinforcement has the highest strength among the connection types commonly used by boatwrights and the type of frame connection reinforced on the left and right sides

    Hydrodynamic Model Simulation at the Port of Tanjung Rhu Belitung

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    Ports around Belitung Island have an essential role in supporting inter-island shipping activities, which positively impact economic growth. So that predictions to find out the condition of the waters need to be made early to anticipate disruption to the ship's shipping lanes. This study's prediction of these waters was carried out with a hydrodynamic model. Model accuracy (calibration) compares model results with survey data. Based on several iterations, the tidal model and current velocity are obtained with an accuracy rate of 5% and 7%, respectively. These results indicate the model's relatively good level of accuracy because it is below 10%. The model results also found that current velocity and wave height are always higher during high tide conditions than during low tide. In addition, along the Tanjung Rhu shipping channel, the current speed at point A1 experiences a significant difference during high tide conditions, namely 0.285 m/s at high tide, 0.102 m/s at low tide, 0.072 m/s at low tide, and 0.033 m/s s when heading for high tide, because of the narrowing of the water area due to the crush of two landmasses. In addition, areas far from shipping lanes (A1 and A2) have the lowest wave height compared to areas close to shipping lanes (A3). Because the surrounding land slightly covers the two points (A1 and A2), the wave height is smaller than point A3 in more open waters

    Fatigue Life Analysis of FSO Mooring Chain by Considering the Effects of Offloading Load

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    mooring chains are critical components in the maritime industry used to secure ships and floating oil and gas platforms such as FSOs to stay in their designated positions. The loads exerted on mooring chains during routine operations and additional loads during offloading operations can cause structural fatigue. Therefore, fatigue life analysis of mooring chains is essential to ensure safety and optimal performance. This study aims to conduct fatigue analysis of mooring chains by considering an important factor, namely the influence of offloading. Offloading load refers to the additional load exerted on the mooring chain during loading and unloading operations. The mooring system configuration uses a spread mooring system of 8 chains (4x2), 87 mm in diameter, with 20% pretension. In the fatigue analysis, the "Palmgren-Miner" method was used to evaluate the accumulated damage caused by cyclic loads. Then, the "Rainflow Counting" method is used to identify and count the number of load cycles that occur so that later the fatigue life can be calculated and known. From the research results, it was found that the mooring system configuration design still meets the safety factor requirements recommended by API RP 2 SK both during SLS, ULS, and FLS analysis. In SLS and ULS conditions, the greatest tension value is when the FSO is in the Ballast load condition, with the maximum value of tension that occurs is 2207.4 kN in SLS conditions, and 4151.6 kN in extreme conditions. In the FLS condition analysis, it was found that with an offloading frequency of 24 times per year (1271.89 hours), in the design configuration, the influence of the offloading system can increase up to 7% of the fatigue damage that occurs, and the lowest fatigue life, reduced by 3 years. The least fatigue life occurs in Chain 1.2 at the splash zone segment, which is 67 years

    Pemodelan Faktor-Faktor yang Mempengaruhi Jumlah Kasus Diabetes Melitus di Jawa Timur Menggunakan Geographically Weighted Generalized Poisson Regression dan Geographically Weighted Negative Binomial Regression

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    Diabetes mellitus is a chronic disease of metabolic disorders characterized by blood-sugar levels exceeding normal limits. The province contributing the largest number of cases of diabetes mellitus in Indonesia in 2019 is East Java Province. To know the factors that affect the number of cases of diabetes mellitus is used approach with Geographically Weighted Generalized Poisson Regression (GWGPR) and graphically Weighted Negative Binomial Regression (GWNBR) methods. The highest number of people with diabetes mellitus in East Java is in Surabaya with 94076 cases and the lowest is in Batu City which is 3344 cases. GWGPR and GWNBR modeling both resulted in 4 groups for significants variables in each district/city. The AICc value comparison of the GWGPR and GWNBR models shows almost the same value. Sehingga menunjukkan bahwa model GWGPR dan GWNBR sudah sesuai. So, it shows that the GWGPR and GWNBR models are appropriate. The GWGPR model has a smaller AICc value than the GWNBR model, so the GWGPR method is best suited to model the number of cases of diabetes mellitus in districts/cities in East Java compared to GWNBR method

    PLACE IDEA FOR AGING CARE: DETACHED HOUSE WELL-BEING

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    As the world's population is getting older, the condition of elderly experience mobility limitations, sensory impairments, and cognitive decline. There is an increasing need to address the elderly’s health and life quality. Concurrently, biophilic design has gained recognition as a promising approach to enhance human health and well-being by incorporating natural elements into the built environment. Integrating place identity and place attachment principles into the early stages of planning and construction can optimize the benefits for elderly residents. The research’s purpose is to find how the place attachment could help to improve the well-beingness of elderly. This research examines the cases of detached house with field studies and analyses it from the principle of place identity and the dimension of place attachment to make an adaptation also modifications to accommodate specific needs. The resulting concept is the use of vegetation, the dynamics of wall textures and colours, furniture, railings, and Chinese geometry for creating age-friendly and sustainable environments

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