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Pengaruh Kolektor Pelat Gelombang Dengan Dua Kaca Penutup Terhadap Penambahan Panas Untuk Meningkatkan Kinerja Solar Water Heater kusuma, Dian; Mustafa, Mustafa; Sudarno, Sudarno
JURNAL PILAR TEKNOLOGI : Jurnal Ilmiah Ilmu Ilmu Teknik Vol 4, No 1 (2019): Jurnal Pilar Teknologi
Publisher : LPPM Universitas Merdeka Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33319/piltek.v4i1.25

The worked principle of solar collector wave absorber plate was to transfer solar radiation to the worked fluid. The solar radiation that falls on the first glass was partially reflected, then on the second glass partially absorbed by the absorbent plate. The heat absorbed by the absorbent plate will be used to heat the worked fluid (water) between the absorbent plate and the storage plate. The purpose of this research was to design and make solar collector used wave plate with two cover glass. The addition of incomed water heat used temperatures of 30 Â° C, 40 Â° C, 50 Â° C. The method used was used an expriment by analyzed the effect of initial heat addition on efficiency. From the results of test data obtained collector performance of solar water heater the greater the addition of heat used then the smaller the efficiency. Each of the average heat additions efficiency at 30 Â° C was 19.66%, the temperature of 40 Â° C was 17.75%, and the temperature of 50 Â° C was 12.23%.

Pengaruh Kolektor Pelat Gelombang Dengan Dua Kaca Penutup Terhadap Penambahan Panas Untuk Meningkatkan Kinerja Solar Water Heater Kusuma, Dian; ., Mustafa; ., Sudarno
JURNAL PILAR TEKNOLOGI : Jurnal Ilmiah Ilmu Ilmu Teknik Vol 3, No 2 (2018): JURNAL PILAR TEKNOLOGI
Publisher : LPPM Universitas Merdeka Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33319/piltek.v3i2.16

The worked principle of solar collector wave absorber plate was to transfer solar radiation to the worked fluid. The solar radiation that falls on the first glass was partially reflected, then on the second glass partially absorbed by the absorbent plate. The heat absorbed by the absorbent plate will be used to heat the worked fluid (water) between the absorbent plate and the storage plate. The purpose of this research was to design and make solar collector used wave plate with two cover glass. The addition of incomed water heat used temperatures of 30 Â° C, 40 Â° C, 50 Â° C. The method used was used an expriment by analyzed the effect of initial heat addition on efficiency. From the results of test data obtained collector performance of solar water heater the greater the addition of heat used then the smaller the efficiency. Each of the average heat additions efficiency at 30 Â° C was 19.66%, the temperature of 40 Â° C was 17.75%, and the temperature of 50 Â° C was 12.23%.Keywords : wave absorbent plate, added heat, solar water heaterAnonim, 2017: wibe site: unmermadiun.ac.id, tanggal 26 Agustus 2017.Anonim. Bab II Landasan Teori Prinsip Kerja Kolektor suryaPelatPenyerap. 809b5f3ff5dc603fbc474afe006faef2,Tanggal 16 Mei 2017.Anggraini, Ekadewi Handoyo, 2002: Jurnal Teknik Mesin Universitas PETRA, Surabaya.Arismunandar, W. 1995. Teknologi Rekayasa Surya. edisi pertama. PT Pradnya Paramita. Jakarta.Burhanuddin, A. 2006. Karakteristik kolektor surya pelat datar dengan variasi jarak kaca penutup dan sudut kemiringan kolektor. Skripsi. Fakultas Matematika dan Ilmu Pengetahuan AlamÂ Universitas Sebelas Maret, Surakarta.Beizer, 1981, Konsep Fisika Modern. Jilid 3. Terjemahan The Houw Liong Ph.D, Penerbit Erlangga, Jakarta.Culp, 1991, Prinsip-prinsip Konversi Energi, Penerbit Erlangga, Jakarta.Duffie, dan Beckman. , 1991: Solar Engineering of Thermal Processes, John Willey and Sons Inc, Wisconsin.Giancoli, 1998: Fisika edisi kelima (Terjemahan Yuhilza Hanum), Erlangga, Jakarta.Jasjfi, 1995: Perpindahan kalor, Erlangga, Jakarta.Lunde, 1980, jbptitbpp-gdl-rahadianef-30837â€”2008ta-2.pdf, Bab II, Teori dasar 8.Maftukhil Murot, dkk., 2016. Pengaruh Penambahan Tekanan Diatas Pelat Penyerap Terhadap Kinerja Solar Water Heater Sederhana, Widya Teknika, Vol. 24, N0. 2: 20-32.Mustofa, 2008, Studi Eksperimen Pengaruh pelat penyerap ganda model gelombang dengan penambahan reflektor terhadap kinerja Solar Water Heater sederhana, Dosen Teknik Mesin, Universitas Merdeka Madiun.Mustofa, Ismail N. R., 2013, International Jurnal of Research in Engineering and Technologi, volume.02, Issue.09, September 2013.Prijono, 1986, Prinsip-prinsip Perpindahan Panas, Penerbit Erlangga, Jakarta.Rahadian, 2008 : Jurnal Teknik Mesin Universitas Sumatra Utara.Sijabat, Andri M. 2014. Rancang Bangun dan Analisa Kolektor Surya Tipe Pelat Datar Bersirip Untuk Penghasil Panas Pada Pengering Hasil Pertanian dan Perkebunan. Skripsi. Fakultas Teknik Universitas Sumatra Utara, Medan.Subur Edi S., Irfan Santoso. 2014. Jurnal Teknologi: Perancangan Solar Water Heater Jenis Pelat Datar Temperatur Medium Untuk Aplikasi Penghangat Air Mandi. Volume 7 Nomor 2: 118-127.Tirtoatmodjo, R., Ekadewi, A. H, 1999: Jurnal Teknik Mesin Universitas Kristen Petra

Pengaruh corporate governance dan karakteristik perusahaan terhadap luas pengungkapan corporate social responsibility (CSR) di dalam Sustainability Report Dian Kusuma; Amries Rusli Tanjung; Edfan Darlis
Jurnal Online Mahasiswa (JOM) Bidang Ilmu Ekonomi Vol 1, No 2 (2014): wisuda oktober 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Ilmu Ekonomi

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This study aims to examine the effect of corporate governance and firm characteristics on the extent of corporate social responsibility disclosure in sustainability report. Elements of corporate governance that are used to test are Independent Commissary proportion, foreign ownership proportion and institutional ownership proportion. Then, for the characteristics of firm using firm size, firm age and industry type.The population in this study was all companies listed on the Stock Exchange in 2009 until 2011. The sample was determined by the purposive sampling method and obtain 12 companies. Type of data used was secondary data obtained from www.idx.co.id and corporate websites. The method of analysis used is multiple regression analysis.Based on the results of multiple regression analysis with a significance level of 5%, the results of this study concluded that: (1) Independent Commissary proportion has no effect on CSR disclosure in the SR with the coefficient β is negative 0.855 and significance value 0.159> 0.05, ( 2) foreign ownership proportion has no effect on CSR disclosure in the SR with the coefficient β is negative 0.001 and significance value 0.647> 0.05, ( 3) institutional ownership proportion has no effect on CSR disclosure in the SR with the coefficient β is negative 0.002 and significance value 0.233> 0.05, (4) firm size has no effect on CSR disclosure in SR with the coefficient β is positive 0.001 and significance value 0.980 > 0.05, (5) firm age has a positive effect on CSR disclosure in SR with β coefficient is positive 0.021 and significance value 0.003> 0.05, and (6) industry tipe has a positive effect on CSR disclosure in SR with β coefficient is positive 0.385 and significance value 0.004.Keywords: Corporate Governance, Corporate Characteristics, CSR, Sustainability Report

RESPON PEMBERIAN PUPUK KANDANG KAMBING DAN PUPUK NPK MUTIARA TERHADAP PERTUMBUHAN BIBIT TANAMAN GAHARU (Aquilaria crassna) DI POLIBAG Ansoruddin .; Deddy Wahyudin Purba; Dian Kusuma
Bernas : Jurnal Penelitian Pertanian Vol 13, No 1 (2017): Bernas Februari 2017
Publisher : Bernas : Jurnal Penelitian Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (154.635 KB)

Penelitian ini disusun berdasarkan Rancangan Acak Kelompok (RAK) Faktorial dengan 2 faktor perlakuan dan 3 ulangan. Faktor pertama adalah pemberian pupuk Kandang Kambing (K) terdiri dari 3 taraf yaitu : K0 : 0 kg/tanaman (kontrol), K1 : 0,5 kg/tanaman, dan K2 : 1 kg/tanaman. Faktor kedua adalah pemberian Pupuk NPK Mutiara (N) terdiri dari 3 taraf yaitu : N0: 0 g/tanaman, N1: 75 g/tanaman, K2: 150 g/tanaman. Hasil penelitian pemberian pupuk Kandang Kambing menunjukkan berpengaruh nyata terhadap pertambahan jumlah daun tanaman gaharu, dengan perlakuan pupuk Pupuk KandangKambing terbaik pada dosis 1 kg/tanaman Pemberian Pupuk NPK Mutiara menunjukan berpengaruh nyata terhadap Pertumbuhan tanaman, dengan dosis perlakuan terbaik pada dosis 150 g/tanaman. Interaksi antara pengaplikasian pupuk Kandang Kambing dan Pupuk NPK Mutiara terhadap pertumbuhan bibit Tanaman Gaharu (Aquilaria malaccensis) menunjukkan pengaruh tidak nyata terhadap parameter yang diamati.

ANTI-SMOKING MESSAGES VERSUS PRO-SMOKING MESSAGES AMONG INDONESIAN ADOLESCENT SMOKERS Megatsari, Hario; Damayanti, Rita; Kusuma, Dian; Ibad, Mursyidul; Nadhiroh, Siti Rahayu; Astutik, Erni; Sebayang, Susy Katikana
Indonesian Journal of Health Administration (Jurnal Administrasi Kesehatan Indonesia) Vol. 12 No. 1 (2024): June
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jaki.v12i1.2024.86-96

Background: Anti-smoking messages (ASM) is a program designed to educate the public about the dangers of tobacco use, aiming to prevent adolescents and young people from smoking cigarettes in any form and to assist smokers in giving up their smoking habit. On the contrary, pro-smoking messages (PSM) is a marketing technique to promote tobacco products. Aims: This study was conducted to describe the exposure to ASM and PSM among Indonesian adolescent smokers (IAS). Methods: This study analyzed secondary data from the 2019 Global Youth Tobacco Survey (GYTS) Indonesia. The outcome variable was the respondent's smoking intensity in the last 30 days. The independent variables were the exposure to ASM and PSM in the various below-the-line media. Results: Most IAS were male (93.4%), mostly in secondary school (60.3%) and spent more than IDR 11,000 per week (71.1%). Adolescent smokers were exposed to ASM at a rate of 92.4%. Furthermore, ASM exposure happened to 60.5% of the low-intensity youth smoker group and 39.5% of the high-intensity youth smoker group. Meanwhile, 93% of adolescent smokers were exposed to PSM, with 40.8% in the high-intensity youth smoker group and 59.2% in the low-intensity youth smoker group. Conclusion: The exposure to ASM and PSM in the adolescent smoker group was relatively the same. Keywords: ASM, PSM, prevention, public health, tobacco control, youth

Navigating the aftermath: Risk factors of recurrence following coronary bypass surgery in Indonesia Bachtiar, Adang; Candi, Cicilya; Hasibuan, Syarif R.; Widyasanti, Nisrina; Kusuma, Dian
Narra J Vol. 4 No. 3 (2024): December 2024
Publisher : Narra Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52225/narra.v4i3.969

Coronary heart disease (CHD) remains a leading cause of mortality in Indonesia, and coronary artery bypass graft (CABG) surgery is frequently employed to manage arterial blockages. Despite its efficacy, the recurrence of heart disease post-surgery is a significant concern, highlighting the need for a deeper understanding of its influencing factors. The aim of this study was to examine the factors associated with the incidence of heart disease recurrence after coronary bypass surgery. This study employed a prospective observational design, analyzing hospital claim data from Indonesia's Social Security Agency for Health, known as Badan Penyelenggara Jaminan Sosial (BPJS) Kesehatan, from 2017 to 2022. The analysis included 5,947 patients who survived CABG surgery. Multivariable logistic regression was utilized to assess the relationship between patient demographics, comorbidities, socioeconomic status, and compliance with follow-up visits, as well as their impact on the recurrence of cardiovascular disease. The study found that 24.1% of patients experienced hospitalization recurrence. Patients with irregular follow-ups were less likely to experience recurrence (adjusted odds ratio (AOR): 0.63; 95%CI: 0.51–0.78). Other significant risk factors for recurrence included being self-employed (AOR: 2.09; 95%CI: 1.72–2.55), having comorbid conditions such as disorders of fluid, electrolyte, and acid-base balance (AOR: 3.55; 95%CI: 2.97–4.24), and experiencing cerebral infarction or stroke (AOR: 10.85; 95%CI: 8.24–14.29). In contrast, older age (AOR: 0.89; 95%CI: 0.88–0.91) and the presence of non-insulin-dependent diabetes mellitus (AOR: 0.35; 95%CI: 0.29–0.42) were associated with a lower risk of recurrence. Sex did not significantly influence the risk of recurrence (AOR: 1.18; 95%CI: 0.86–1.62). In conclusion, the study indicates a considerable rate of cardiovascular disease recurrence post-CABG in Indonesia, highlighting several key risk factors. Tailored postoperative management and strict adherence to follow-up protocols are essential for mitigating recurrence. These findings offer crucial insights for improving post-CABG health management strategies in Indonesia.

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