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Wave Pattern dan Interaksi Hambatan Gelombang pada Kapal Lambung Ganda (Twin Hull): Kajian Analisa Numerik Jamaluddin, Andi
Wave: Jurnal Ilmiah Teknologi Maritim Vol 4, No 1 (2010)
Publisher : Wave: Jurnal Ilmiah Teknologi Maritim

Pola gelombang yang ditimbulkan oleh lambung kapal yang melaju sangat penting ketika mempertimbangkan kualitas desain lambung dan prediksi hambatan. Makalah ini membahas kajian pola gelombang sekitar monohull (demihull) dan lambung ganda (catamaran) dengan jarak lambung bervariasi. Estimasi numerik hambatan dan interaksi gelombang kapal yang dihasilkan dilakukan dengan menerapkan teknik-teknik numerik untuk menghitung pola gelombang timbul dan hambatannya, dengan permukaan air tenang. Hasil perhitungan numerik untuk kedua demihull dan catamaran dibandingkan dan dibahas secara rinci.Keywords : Twin hull, Wave pattern, Resistance, Simulation

KAJIAN EKSPERIMENTAL DISAIN KAPAL SEP-HULL SEBAGAI SARANA TRANSPORTASI DI PERAIRAN PANTAI DAN SUNGAI Jamaluddin, Andi; Maâ€™ruf, Buana
Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Vol 7, No 3 (2010): Oktober
Publisher : Department of Naval Architecture - Diponegoro University

Makalah ini membahas pengujian hambatan model kapal Surface Effect Planning Hull (SEP-Hull). Model uji menggunakan sistem pelumasan udara di bawah permukaan lambung kapal untuk mengetahui pengaruh sistem pelumasan terhadap gaya hambatan kapal. Model ini terbuat dari bahan fiberglass dan diuji pada kecepatan, Fn 0.1-1.45, di towing tank- UPT Balai Pengkajian dan Penelitian Hidrodinamika BPPT, Surabaya. Gaya hambatan model kapal diukur dengan alat ukur â€˜load cell transducerâ€™. Hasil pengujian model dipresentasikan dalam bentuk grafik dan tabel. Dari hasil uji diperoleh bahwa hambatan total kapal berkurang hingga 30 persen dengan mengaplikasikan sistim pelumasan udara di bawah permukaan lambung kapal. Hasil ini memberikan harapan yang menjanjikan dalam dunia perkapalan.

Kajian Interferensi Koefisien Hambatan pada Lambung Katamaran melalui Komputasi â€™Slender Body Method Jamaluddin, Andi; Utama, I Ketut Aria Pria; Hamdani, M.Arief
Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Vol 7, No 2 (2010): Juni
Publisher : Department of Naval Architecture - Diponegoro University

The past decade has witnessed a rapid growth of interest in the development of fast catamaran for various applications. The paper describes the study of interference resistance components on demihull separation. Catamarans or twin-hull vessels may be formed either by connecting two symmetrical demihulls or by splitting a mono hull into two halves to form two asymmetric demihulls. The slender body method in HullSpeed- Maxsurf Program was used for predicting the resistance components. The method assumes that the shipâ€™s beam is small compared to its length. Effect of resistance interference components on catamaran hull separations are explained and discussed with some work from other published data, which shows good agreement.

WAVE PATTERN DAN INTERAKSI HAMBATAN GELOMBANG PADA KAPAL LAMBUNG GANDA (TWIN HULL): KAJIAN ANALISA NUMERIK Jamaluddin, Andi
Wave: Jurnal Ilmiah Teknologi Maritim Vol 4, No 1 (2010)
Publisher : Badan Pengkajian dan Penerapan Teknologi

Pola gelombang yang ditimbulkan oleh lambung kapal yang melaju sangat penting ketika mempertimbangkan kualitas desain lambung dan prediksi hambatan. Makalah ini membahas kajian pola gelombang sekitar monohull (demihull) dan lambung ganda (catamaran) dengan jarak lambung bervariasi. Estimasi numerik hambatan dan interaksi gelombang kapal yang dihasilkan dilakukan dengan menerapkan teknik-teknik numerik untuk menghitung pola gelombang timbul dan hambatannya, dengan permukaan air tenang. Hasil perhitungan numerik untuk kedua demihull dan catamaran dibandingkan dan dibahas secara rinci.Keywords : Twin hull, Wave pattern, Resistance, Simulation

An Investigation Into the Resistance/Powering and Seakeeping Characteristics of River Catamaran and Trimarana Murdijanto, Murdijanto; Utama, I Ketut Aria Pria; Jamaluddin, Andi
Makara Journal of Technology Vol. 15, No. 1
Publisher : UI Scholars Hub

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

The increase of fuel price has caused fleet operational and shipping business to be in danger situation. The fuel consumption of a ship is influenced by ship volume or wetted area which contributes directly to the increase of ship resistance and the size of main engine. In order to find out the appropriate answers, a series of investigation into river transportation using monohull, catamaran and trimaran types of vessel was carried out. The work focused on the estimation of total resistance and powering as well as seakeeping characteristics and carried out experimentally using tank test and numerically using a ship design software (Maxsurf). It was found out that the catamaran and trimaran could have less resistance and hence power compared to monohull of similar displacement. The seakeeping characteristics of the multihull vessels were also comparable with those of the monohull. This is a good indication that river catamaran/trimaran is an efficient and comfortable vessel. If a prototype or real vessel is developed, it can be a very efficient ship as well as a ship with high safety standard.

Pengaruh Earning Per Share (EPS) Dan Debt To Equity Ratio (DER) Terhadap Harga Saham Pada PT Bayu Buana, Tbk. Jamaluddin, Andi; Hariyanti; Alvia, Karmila
Jurnal Online Manajemen ELPEI Vol 4 No 2 (2024)
Publisher : STIM-LPI Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58191/jomel.v4i2.288

The purpose of this research is to determine the effect of Earning Per Share and Debt to Equity Ratio on share prices at PT. Bayu Buana, Tbk. The type of data used in this research is qualitative and quantitative. The data source used in this research is secondary data. The analytical method used is multiple linear regression analysis, coefficient of determination, correlation coefficient, t test, and F test. The results of this study show the regression equation Y=9.139+0.176X1– 0.035X2, coefficient of determination, (R2) = 73% and coefficient correlation (R) = 0.858. through the F test, it is obtained that Fcount = 11.182 > Ftable 4.46, the results of this research show that simultaneously Earning Per Share and Debt to Equity Ratio have a significant effect on share prices at PT. Bayu Buana, Tbk. thus the hypothesis is accepted. Based on the t test b1 tcount = 2.444 > ttable = 1.860, the results of this study indicate that Earning Per Share (X1) partially has a positive and significant effect on share prices so that the hypothesis is accepted. Meanwhile, for b2 tcount = -5,000 < ttable = 1.860, the results of this study show that the Debt to Equity Ratio (X2) partially has a negative and significant effect on stock prices so that the hypothesis is accepted.

Pengaruh Net Profit Margin Dan Total Asset Turnover Terhadap Harga Saham pada PT. AKR corporindo, Tbk Jamaluddin, Andi; Alam, Andi Rifqah Purnama; Azizah, Amplya Ayu
Jurnal Online Manajemen ELPEI Vol 5 No 1 (2025)
Publisher : STIM-LPI Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58191/jomel.v5i1.350

This research aims The aim of this research is to determine the influence of Net Profit Margin and Total Asset Turnover on share prices at PT. AKR Corporindo, Tbk. The types of data used in this research are qualitative data and quantitative data. The data source used in this research is secondary data. The analytical method used in this research is multiple linear regression. From the research results, the results of the multiple linear regression equation were obtained with the equation value Y = - 3281.28 + 147.59X1 + 4783.54X2, the coefficient of determination (R2) was 0.54 and the correlation coefficient (r) was 0.73. Thus, it can be concluded that simultaneously the variables Net Profit Margin and Total Asset Turnover do not have a significant effect on share prices at PT. ACR. Corporindo, Tbk. Partially, the Net Profit Margin variable has no significant effect on share prices at PT. AKR. Corporindo, Tbk and partially the Total Asset Turnover variable have a significant effect on share prices at PT. ACR. Corporindo, Tbk. Thus, the first and second hypotheses are rejected and the third hypothesis is accepted.

PELATIHAN MANAJEMEN KEUANGAN UNTUK MENINGKATKAN KAPASITAS PELAKU UMKM DI KELURAHAN PADDUPPA KECAMATAN TEMPE KABUPATEN WAJO Yuniarti, A.; Jamaluddin, Andi; -, Faisal; Nurwana, Andi
Arunika: Jurnal Pengabdian Masyarakat Vol. 1 No. 1: Juni 2022
Publisher : Unit Publikasi dan Jurnal Sekolah Tinggi Ilmu Ekonomi Tri Dharma Nusantara Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53654/ar.v1i1.274

The SMEs peddled their business in the Container Village by the Padduppa Village Government, Tempe District, Wajo Regency. Kampung Container located on the Cenrana River Street is a place designed by the government so that it attracts all culinary connoisseurs and a place to relax for visitors who want to enjoy the beauty of the coast of Lake Tempe and the Cenrana River Flow. The MSMEs are domiciled in Padduppa Village, facilitated by the government to increase their productivity and business results. These MSME actors have been active in their business since 2018. But in financial management but still minimal and still manually so that sometimes the SMEs are difficult to manage their finances, addressing the development of the business of MSMEs in the Padduppa Village who are increasingly advanced and crowded by visitors so that they really need knowledge about regulating business finances so that SMEs continue to exist in his efforts without being burdened with financial problems and can be managed professionally for the welfare of MSME actors. The purpose of financial management education for SMEs is (1) MSME actors can maximize profits with The right decision (2) Utilization of the right and optimal money so that efficiency is maintained. (3) Efficiency so that financial distribution is appropriate in all aspects or financial control, this activity is carried out on Thursday, May 12, 2022, at the Padduppa Village Office Hall, Tempe District, Wajo Regency. The results obtained are (1) MSME actors are able to plan, regulate, direct, and supervise financial activities such as procurement and utilization of their business funds (2) MSME actors are able to estimate the needs and composition of capital (3) the level of participation of MSMEs is quite good, so The activities carried out can provide an overview of the benefits of financial management such as determining investment appropriately

PENGABDIAN MASYARAKAT MELALUI KEGIATAN BAKTI SOSIAL DI DESA PASAKA KECAMATAN SABBANGPARU KABUPATEN WAJO Yuniarti, A.; Nurwana, Andi; Jamaluddin, Andi
Arunika: Jurnal Pengabdian Masyarakat Vol. 1 No. 2: Desember 2022
Publisher : Unit Publikasi dan Jurnal Sekolah Tinggi Ilmu Ekonomi Tri Dharma Nusantara Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53654/ar.v1i2.315

Community service in the form of social services carried out by a team of lecturers provides tremendous benefits to the Pasaka Village Community, Sabbangparu District, These activities are in the form of socializing the prevention of underage marriage, maternal and child health counseling, drug counseling. The purpose of this activity is to provide health services to the community for the realization of public welfare in the health sector as well as increase the sense of social care among fellow human beings. The activity has been carried out since 05,10 & 11 August 2022 by involving the Head of the Women's Protection and fulfillment of children's rights DINSOSP2KBP3A Wajo Regency and medical personnel, such as sub-district midwives coordinators and nurses and attended by 90 participants, consisting of 25 people to prevent child marriage. , Maternal and child health counseling as many as 30 people and drug counseling at SMPN 3 Sabbangparu as many as 35 people

PELATIHAN KEWIRAUSAHAAN BAGI PELAKU UMKM DI KELURAHAN PAMMANA KABUPATEN WAJO Yuniarti, Andi; Nurwana, Andi; Jamaluddin, Andi
Arunika: Jurnal Pengabdian Masyarakat Vol. 2 No. 1: Juni 2023
Publisher : Unit Publikasi dan Jurnal Sekolah Tinggi Ilmu Ekonomi Tri Dharma Nusantara Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53654/ar.v2i1.386

Community service is the implementation of the practice of science, technology and art and culture directly to the community institutionally through scientific methodology as the dissemination of the Tri Dharma of Higher Education and a noble responsibility in efforts to develop community capabilities. MSME development is a community service activity in the form of applying science and technology results to solve problems faced by MSME units (micro, small and medium enterprises). This program is aimed at increasing the independence and performance of MSMEs. Examples include: improving the quality of MSME industrial processed products, increasing MSME productivity with appropriate technology, developing online marketing to expand the MSME market, such as only in the Pammana village, Pammana sub-district, Wajo district, with several residents trying to open a business but lacking skills. so that skills are needed so that an entrepreneurial spirit is needed. In this training, it is hoped that entrepreneurs can increase their productivity and provide knowledge to market their products online

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