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PENGARUH BENTUK DAN OPTIMASI LUASAN PERMUKAAN PELAT PENYERAP TERHADAP EFISIENSI SOLAR WATER HEATER Fadhillah, Arief Rizki; Kurniawan, Andi; Kurniawan, Hendra; Ismail, Nova Risdiyanto
PROTON Vol 5, No 2: Oktober 2013
Publisher : PROTON

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

Abstract

Pemanas air merupakan salah satu peralatan yang banyak digunakan oleh manusia. Salah satunya digunakan untuk memenuhi kebutuhan pada skala rumah tangga yaitu untuk mandi air hangat. Pemanas air yang banyak digunakan adalah pemanas air yang memanfaatkan energi surya. Peralatan pemanas air skala industri dan rumah tangga masih memiliki kelemahan-kelemahan. Pemanas air skala industri seperti contoh di atas memerlukan biaya investasi maupun biaya operasional yang relatif besar. Berdasarkan kelemahan-kelemahan peralatan di atas, farid dan ismail (2010) melakukan penelitian menggunakan pelat penyerap gelombang dan dengan penambahan reflektor dapat meningkatkan efisiensi solar water heater sederhana. Rico A., dkk (2012) memanfaatkan dinding sebagai pelat penyerap radiasi matahari dan  penambahan volume air pada solar heater. Permukaan pelat penyerap panas radiasi matahari merupakan bagian pokok untuk menerima sinar radiasi matahari, sehingga bentuk permukaan akan mempengaruhi penerimaan energi radiasi matahari. Selain itu luasan permukaan pelat penyerap juga akan mempengaruhi penerimaan energi radiasi matahari.Dengan kondisi demikian perlu dilakukan penelitian tentang Pengaruh bentuk dan optimasi luasan permukaan pelat penyerap terhadap efisiensi solar water heater sederhana. Pada penelitian ini menggunakan metode eksperimen, yang dimulai dari pengujian pertama yaitu variasi bentuk pelat penyerap (segitiga sama kaki, gelombang dan segitiga siku-siku) yang masing-masing tegak lurus terhadap sinar dating radiasi matahari. Pengujian kedua untuk mengoptimasi luasan pelat penyerap, sehingga peningkatan efisiensi penyerapan panas pada solar heater. Hasil penelitian menunjukkan bahwa efisiensi bentuk dan luasan  pelat penyerap solar water heater terbaik adalah pelat penyerap berbentuk segitiga sama kaki dan memiliki luasan segitiga yang kecil, antara lain : pada pengujian variasi bentuk pelat penyerap solar water heater sederhana dengan pelat penyerap berbentuk segitiga sama kaki memiliki efisiensi yang terbaik dengan angka efisiensi 77,8%  yang memiliki temperature pelat sebesar 33,90C dan menghasilkan temperatur aliran out sebesar 28,0 0C. Pada pengujian variasi luasan maka yang terbaik adalah segitiga sama kaki kecil dengan luasan 0,37 m2 yang menghasilkan temperatur pelat 34,7 0C yang dapat menghasilkan temperatur aliran out sebesar 25,4  0C, dan memiliki efisiensi sebesar 88,6 %.   Kata kunci:  bentuk permukaan, optimasi luasan, pelat penyerap , solar  water heater. PENDAHULUAN Latar Belakang Pemanas air merupakan salah satu peralatan yang banyak digunakan oleh manusia. Salah satunya digunakan untuk memenuhi kebutuhan pada skala rumah tangga yaitu untuk mandi air hangat. Pemanas air yang banyak digunakan adalah pemanas air yang memanfaatkan energi surya. Peralatan ini banyak berkembang dengan adanya permasalahan keterbatasan bahan bakar fosil. Peralatan pemanas air skala industri dan rumah tangga masih memiliki kelemahan-kelemahan. Pemanas air skala industri seperti contoh di atas memerlukan biaya investasi maupun biaya operasional yang relatif besar. Pemanas komersial skala rumah tangga memiliki harga jual relatif tinggi dan masih memerlukan penambahan energi listrik atau gas untuk operasionalnya. Berdasarkan kelemahan-kelemahan peralatan di atas, farid dan ismail (2010) melakukan penelitian menggunakan pelat penyerap gelombang dan dengan penambahan reflektor dapat menin
HIV-related stigma and discrimination: a study of health care workers in Banda Aceh, Indonesia Harapan, Harapan; Feramuhawan, Syarifah; Kurniawan, Hendra; Anwar, Samsul; Andalas, Mohd.; Hossain, Mohammad B.
Medical Journal of Indonesia Vol 22, No 1 (2013): February
Publisher : Faculty of Medicine Universitas Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (319.257 KB) | DOI: 10.13181/mji.v22i1.518

Abstract

Background: The aim of this study was to identify the level of stigmatized and discriminatory attitudes towards people living with HIV (PLHIV) among health care workers (HCWs) and the factors that influenced these attitudes.Methods: This research was conducted at Dr. Zainoel Abidin General Hospital Banda Aceh, Indonesia. A cross-sectional study design was adopted for this research. Eighty nine HCWs were included in this study and they were selected purposively. Correlation analysis, analysis of variance and independent sample t test analysis was used according to the type of data. Finally, a multiple linear regression model was used to identify the predictor factor for stigmatized and discriminatory attitudes.Results: We found that the level of stigmatized and discriminatory attitudes was high. Bivariate analysis showed that type of HCW, education, marital status, knowledge on transmission and prevention of HIV and irrational fear of HIV transmission were significant related with stigmatized attitudes (p < 0.05). Type of HCW, marital status, age, knowledge on transmission and prevention of HIV and irrational fear of HIV transmission indicated significant (p < 0.05) differences in the levels of discriminatory attitudes. A multiple linear regression model identified type of HCW and irrational fear of HIV transmission correlated with stigmatized attitudes (R2 = 0.230) and knowledge on transmission and prevention of HIV correlated with discriminatory attitudes (R2 = 0.119).Conclusion: Irrational fear of HIV transmission and type of HCW are significant predictors to stigmatized attitudes; knowledge on transmission and prevention of HIV is a predictor to discriminatory attitudes towards PLHIV among HCWs. (Med J Indones. 2013;22:22-9)Keywords: Discrimination, discriminatory attitudes, HIV, PLHIV, stigmatized attitudes.
STRATEGI PENGEMBANGAN BANJIR KANAL BARAT SEBAGAI DAYA TARIK WISATA DI KOTA SEMARANG Kismartini, Kismartini; Kurniawan, Hendra; Dwika, Septi Anjani Putri
JURNAL ILMU SOSIAL Volume 17, Issue 1, Year 2018
Publisher : Fakultas Ilmu Sosial dan Ilmu Politik, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (934.746 KB) | DOI: 10.14710/jis.17.1.2018.64-76

Abstract

The number of tourists visiting Semarang City is increasing significantly year by year. However, this increase is not accompanied by an improvement in the quantity and the quality of tourist destinations in Semarang. Banjir Kanal Barat area is one of the potential tourist destinations in Semarang, but so far the existing facilities in this area are very limited. In addition, there is no any tourism activities which can be done even. Moreover, this area tends to be very unattractive. This study aims to analyze the development strategy of Banjir Kanal Barat (BKB/western canal) as an interesting tourism destination by analyzing internal and external factors. The data were analyzed descriptively qualitative to determine BKB's development strategy through SWOT analysis (Strengths, Weaknesses, Opportunities, and Threats). The results of this study formulated 10 (ten) alternative strategies for the development of Banjir Kanal Barat as a tourism destination area. The three best alternative choices are: (1) creating tourist facilities which can be enjoyed by the community, (2) developing special water attractions, (3) inviting investors and cooperating with various parties.
Executive Information System (EIS) to Improve Quality Control and Supervision on Vehicle Maintenance Expenditure Azima, Muhammad Fauzan; Karnila, Sri; Kurniawan, Hendra
SIMADA (Jurnal Sistem Informasi dan Manajemen Basis Data) Vol 1, No 2 (2018): Jurnal Sistem Informasi & Manajemen Basis Data (SIMADA)
Publisher : Institut Informatika dan Bisnis (IIB) Darmajaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30873/simada.v1i2.1144

Abstract

Executive Information System (EIS) is a system established to provide information needed by the executive in the decision making process. This information technology is not only used in business activities, but can help an executive in getting an accurate concise picture of the organization. The development of the Executive Information System is used to improve the quality of control and supervision in the Household Section of the Lampung Provincial General Administration Bureau on government official vehicle maintenance expenditures. The research design is classified as Casual Comperative Research. This study aims to develop and implement EIS in the Household Section of the Lampung Provincial Government General Bureau and establish EIS as an implementation of clean government and good government. This system reduces the occurrence of data accumulation and redundancy, so as to prevent the occurrence of indications of corruption, and makes it easier for executives to verify vehicle maintenance data with fairness and rationality with the amount of budget submission. The method used in this study is EIS starting from the stages of planning, implementation, software testing, documentation, deployment and maintenance. So that EIS can control and provide supervision on vehicle maintenance data manipulation that embodies clean government and good government.Keywords: Executive Information System; E-Goverment; Data Manipulation; Monitoring.
Penerapan Knowledge Management System Dalam Manajemen Data Kegiatan Hidroponik (Studi Kasus: Komunitas Hidroponik Bandar Lampung) Susanto, Lilik Joko; Kurniawan, Hendra
SIMADA (Jurnal Sistem Informasi dan Manajemen Basis Data) Vol 1, No 1 (2018): Jurnal Sistem Informasi & Manajemen Basis Data (SIMADA)
Publisher : Institut Informatika dan Bisnis (IIB) Darmajaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30873/simada.v1i1.1108

Abstract

Knowledge is a success key for any aspects in various fields. As a community, Komunitas Hidroponik Bandar Lampung implemented the advancement of information technology in improving the understanding of hydroponic techniques. To maintain the learning process, innovation and renewal is developed and continued. Therefore, it is needed facilities or activities that can facilitate every individual or member to express his/her ideas or opinion on the hydroponic techniques. Website Knowledge Management of Komunitas Hidroponik was designed using Rational Unified Process (RUP) method. The construction of the website using PHP as the scripting language, PHP My Admin as the web server, Atom Text Editor as the interface editor, Adobe Photoshop CS6 as picture editor, Star UML for designing the system diagram design, and MySQL as the database processor. This study resulted in a Website Knowledge Management. The utilization of the website can help the users gaining information, giving venues for discussion, interaction and sharing knowledge on hydroponic techniques. Keywords: Hydroponic; Knowlegde; Knowledge Management System
Sistem Informasi Kerjasama Vendor Berbasis Web Pada PT. Pelabuan Indonesia II (Persero) Cabang Panjang Prihadi, Bagus; Rizal, Ruki; Kurniawan, Hendra; Agarina, Melda
SIMADA (Jurnal Sistem Informasi dan Manajemen Basis Data) Vol 3, No 1 (2020): Jurnal Sistem Informasi & Manajemen Basis Data (SIMADA)
Publisher : Institut Informatika dan Bisnis (IIB) Darmajaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30873/simada.v3i1.2024

Abstract

Kerjasama merupakan suatu strategi bisnis yang dilakukan oleh dua pihak atau lebih dalam jangka waktu tertentu, kerjasama dapat terjadi ketika pihak yang bersangkutan memiliki kepentingan dan kesadaran yang sama untuk mencapai tujuan dan kepentingan bersama. Proses pengolahan data kerjasama vendor yang masih ada dilakukan secara konvensional. Sehingga pada bagian Pengadaan PT Pelabuhan Indonesia II (Persero) Cabang Panjang mengalami kesulitan dalam proses pencarian data dimana dalam dokumentasi data kerjasama vendor masih berupa hardcopy, pegawai harus mencari satu persatu data untuk mengetahui informasi terkait kerjasama vendor tersebut. Sistem yang diusulkan untuk membantu  pengolahan data kerjasama vendor adalah sistem informasi kerjasama vendor berbasis web. metode yang digunakan dalam penelitian ini adalah metode Rational Unified Process (RUP), dengan tahapan inception, elaboaration, contruction, dan transition. hasil penelitian ini adalah sistem dapat menampilkan akta perusahaan, izin perusahaan, kontrak kerjasama, dan notifikasi jatuh tempo kontrak kerjasama. Kata kunci: Kerjasama Vendor; Web
PENERAPAN KNOWLEDGE MANAGEMENT SYSTEM (Studi Kasus: Spesialis Penyakit Jantung dan Spesialis Penyakit Dalam di RSUD ABDUL MOELOEK) Nadira, Sasya; Nurlistiani, Rini; Kurniawan, Hendra; Rahardi, Agus; Halimah, Halimah
SIMADA (Jurnal Sistem Informasi dan Manajemen Basis Data) Vol 2, No 2 (2019): Jurnal Sistem Informasi & Manajemen Basis Data (SIMADA)
Publisher : Institut Informatika dan Bisnis (IIB) Darmajaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30873/simada.v2i2.1879

Abstract

Knowledge management is a concept that converts information into knowledge that can be followed up and available with easy means so that everyone can access it. The knowledge of information technology is very important for the community, as one of the software and forums providing information about stom and heart disease, which is located in Dr. H. Abdul Moeloek. In order to develop and maintain the process of learning, innovation and renewal must continue to develop and be sustainable and required facilities or activities that are able to provide information about health, website knowledge management system that is specific to heart and heart disease is designed using the waterfall model method. This website is built using the PHP programming language and MySQL as the database. This research resulted in a knowledge management system website. The use of this website can help the public in obtaining information, provide a forum for discussion and exchange of experiences regarding ulcer disease and heart disease.
SISTEM INFORMASI TERINTEGRASI TUGAS AKHIR/SKRIPSI BERBASIS WEB (Studi Kasus: Jurusan Sistem Informasi Institut Informatika dan Bisnis Darmajaya) Kurniawan, Hendra; Bondowoso, Wicakso Bandung
SIMADA (Jurnal Sistem Informasi dan Manajemen Basis Data) Vol 2, No 2 (2019): Jurnal Sistem Informasi & Manajemen Basis Data (SIMADA)
Publisher : Institut Informatika dan Bisnis (IIB) Darmajaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30873/simada.v2i2.1768

Abstract

Sistem informasi terintegrasi tugas akhir/skripsi ini memungkinkan atau memberikan fasilitas kepada beberapa aktor dapat saling berinteraksi sesuai dengan  standar operasional prosedur yang dimiliki oleh masing-masing aktor dan berbasis dokumen elektronik. Adapun aktor yang terlibat didalamnya adalah Mahasiswa, Kelompok Bidang Keilmuan (KBK), Dosen Pembimbing, Dosen Penguji, Biro Administrasi Akademik dan Kemahasiswaan (BAAK), Sekretaris Jurusan serta Ketua Jurusan. Sistem ini memuat aktifitas dimulai dari pengajuan judul skripsi/tugas akhir, penentuan dosen pembimbing, pembuatan surat keputusan pembimbing, bimbingan skripsi, pendaftaran dan penjadwalan seminar proposal skripsi/tugas akhir, penentuan pembahas pada seminar proposal skripsi/tugas akhir, pendaftaran dan penjadwalan sidang skripsi/tugas akhir dan penilaian sidang skripsi/tugas akhir berikut dengan lampiran dokumen-dokumen pada setiap aktifitasnya. Sistem Informasi ini dibangun menggunakan metode Terstruktur (waterfall model). Sistem dibuat dengan menggunakan HTML, CSS, PHP, Bootstrap dan MySql. Hasil dari penelitian yang dicapai menciptakan sebuah web sistem diharapkan membantu jurusan sistem informasi dalam pengolahan dokumen dan interaksi yang berkualitas.Kata kunci: Sistem Informasi; tugas akhir; skripsi; E-Document
PROSES PRODUKSI BAGIAN LINE OTHER DI PT. BINA BUSANA INTERNUSA (BBI) SEMARANG Kurniawan, Hendra; Prihastono, Endro
Jurnal Ilmiah Dinamika Teknik DINAMIKA TEKNIK VOL. 10 NO. 2 2017 JULI 2017
Publisher : Jurnal Ilmiah Dinamika Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (204.358 KB)

Abstract

In Production Process, factory machinery and raw materials are an important part to facilitate the production process. One of the factors that affect the smoothness of the production process is the machine. Need care as a thing that should not be missed considering the machine is one of the important organ for the existence of the company. PT. Bina Busana Internusa (BBI) Semarang, is a company engaged in the garment industry that produces fashion and clothing sportswear. Required to improve the quality of products that are generally on the cause are human and machine factors, for human factors needed to increase training, Make the assessment system work, machine operators are more supervised performance in the work while the engine factor needs to be checked the readiness of the machine before and after use to standard operational and perform periodic maintenance of the machine.Key Words: Production, Line Order
Factors affecting the level of health care worker’s stigmatized and discriminatory attitude towards people living with HIV: A study at the Dr. Zainoel Abidin General Hospital, Banda Aceh, Indonesia Harapan, H.; Feramuhawan, Syarifah; Kurniawan, Hendra; Andalas, Mohd.; Hossain, Mohammad Bellal
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 1, No 1 (2011): Life Sciences
Publisher : Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (78.404 KB)

Abstract

The aim of this study was to identify the level of health care worker`s (HCW) stigmatized and discriminatory (S D) attitude towards people living with HIV (PLHIV) and the factors that influenced this attitude. This research was conducted at the Dr. Zainoel Abidin General Hospital (RSUDZA) in Banda Aceh province of Indonesia. A cross-sectional study design was adopted for this research. Eighty nine HCWs were included in this study and they were selected purposively. Pearson correlation analysis, analysis of variance or independent sample t test analysis was used according to the type of data. We found that the level of S D attitude towards PLHIV in RSUDZA is high. Based on the Least Significant Difference Test, the average score of the answers between nurses and general practitioners and between nurses and medical students was significantly different(p=0.05). Pearson correlation analysis showed that the levels of S D attitude towards PLHIV was positively correlated with age (r=0.219, p=0.04) and irrational fear of HIV transmission (r=0.352, p=0.001) and negatively correlated with knowledge about HIV/AIDS (r=-0.336, p=0.001). Pearson correlation analysis also found that knowledge of HIV/AIDS negatively correlated with the irrational fear of HIV transmission (r=0.382, p=0.000). In addition, the level of S D attitude towards PLHIV was also associated with marital status of HCWs (p=0.020). Gender, education level, religion and the importance of religion in HCW lives wasn`t significantly affect to the level of S D attitude towards PLHIV in HCW. We concluded that the factors that influence the level of S D attitude towards PLHIV among the HCW are age, marital status, knowledge of HIV/AIDS, irrational fear of HIV transmission and HCWs occupations. To reduce S D attitude towards PLHIV among the HCWs, we recommend introducing some program to increase knowledge of HIV/AIDS
Co-Authors Abdullah Merjani, Abdullah Abidarin Rosidi Agus Rahardi, Agus Ahmad Soleh Alfian, Rizki Alfian, Rizki Ana Rima Andi Kurniawan Ari Natalia Probandari Arief Rizki Fadhillah Arnelis Djalil Azhari SN Azima, Muhammad Fauzan Azima, Muhammad Fauzan Bambang Yulianto Basar, Alyani Akramah Bondowoso, Wicakso Bandung Brian Wasita Budipratiwi Wisudyaningsih Chahyadi, Ferdi Christian Purnama Daniel, Prima Audia Debora Budiyono Deni Firmansyah, Deni Denny Kurniawan Desiana Desiana, Desiana Didik Wahjudi Dwi Nurrahmanto, Dwi Emril, Dessy Rakhmawati Endro Prihastono Febriyanto Febriyanto Fitria - Fitria Fitria H. Harapan Halimah Halimah Hanif Al Fatta Harapan Harapan Harijanto Wijaya Haryanto Tanuwijaya Hastutiningtyas, Wahidyanti Rahayu Ignatius Adrian Mastan Inayatullah, Iyep Irawan, Kurniadi Ita Riniatsih Kismartini Kismartini Lily Puspa Dewi Made, Anwar Martaleli Bettiza, Martaleli Matulatan, Tekad Melda Agarina Mirza Mirza Mohammad B. Hossain Mohammad Bellal Hossain Mohd. Andalas Murti, Paulus Wisnu Kuncoro Nadira, Sasya Neni Purwati Ngaga, Hendrikus Nikentari, Nerfita Nikentari, Nerfita Nova Risdiyanto Ismail Nurfiana Nurfiana, Nurfiana Nurjoko -, Nurjoko Nurlistiani, Rini Oktari, Rina Suryani Pentatito Gunowibowo Prasetya, Wahyu Sindu Prihadi, Bagus Priyatmoko, Heri Putra, Donie Tuah Fitriano Raihan Raihan, Raihan Retnaningsih, Umi O. Reviono Reviono Ritha, Nola Ritha, Nola Rizal, Ruki Roche Alimin Rudiarto, Sabar Sagita, Diana Kurniasari Sahfutra, Suryo Adi Salim, Tamara Adriani Samsul Anwar Santi, Nur Sapta Nugraha Septi Anjani Putri Dwika Septiani, Putri Setyabudi, Irawan Shaura, Rizkiana Karmelia Sigit, Indarto Solihah Titin Sumanti, Solihah Titin Sri Karnila Sri Lestari Sumarya, Edi Suradi Suradi Suryo Adi Sahfutra, Suryo Adi Susanto, Lilik Joko Susanto, Lilik Joko Swis Tantoro Syarifah Feramuhawan Taqwa, Libasut Tita Menawati, Tita Tri Erri Astoeti Widijanto Sudhana Widiyanto, Eka Puji Y, M Ariza Eka Yogivaria, Doni Wirshandono Yusup Subagio Sutanto Zunidar, Zunidar