scholarly journals PERBEDAAN HASIL TANGKAPAN BAGAN APUNG YANG MENGGUNAKAN LAMPU MERKURI DENGAN LAMPU LED

2015 ◽  
Vol 21 (2) ◽  
pp. 123
Author(s):  
Muhammad Sulaiman ◽  
Mulyono S Baskoro ◽  
Am Azbaz Taurusman ◽  
Sugeng Hari Wisudo ◽  
Roza Yusfiandayani
Keyword(s):  
Fish Species ◽  
Light Emitting Diode ◽  
Electrical Energy ◽  
Low Energy ◽  
Heat Radiation ◽  
Fishing Gear ◽  
Mercury Lamp ◽  
Light Emitting ◽  
Led Lights ◽  
Better Than

<p>Teknik penangkapan ikan dengan alat tangkap bagan di Indonesia khususnya di Kabupaten Barru umumnya masih menggunakan lampu merkuri yang mana membutuhkan energi listrik yang cukup besar. Salah satu alternatif untuk mengurangi penggunaan energi listrik yang besar ini dapat digunakan jenis lampu hemat energi seperti lampu Light Emitting Diode (LED). Tujuan dari penelitian ini adalah untuk mengetahui perbedaan jenis ikan yang dominan tertangkap, komposisi jenis, dan berat ikan tertangkap antara bagan yang menggunakan lampu merkuri dengan lampu LED. Penelitian dilakukan di perairan Kabupaten Barru-Selat Makassar, Sulawesi Selatan. Lokasi pengamatan terletak pada posisi 4°22’48,7"-4°33’47,8"LS sampai dengan 119°25’05,0"-119°33’42,7"BT. Pengamatan lapang/uji coba penangkapan dilakukan pada periode Oktober-Nopember 2012 dan April-Mei 2013 (sebanyak 50 Trip penangkapan). Hasil penelitian menunjukkan bahwa komposisi hasil tangkapan bagan yang menggunakan lampu merkuri dan lampu LED didominasi oleh ikan teri hitam, teri putih, kembung lelaki, tembang, cumi-cumi, dan peperek, masing-masing sebanyak 90% dan 83%. Dengan komposisi jenis hasil tangkapan yang demikian ini menunjukkan bahwa lampu LED dapat digunakan sebagai alat bantu penangkapan ikan karena mampu memikat jenis ikan target dan cenderung hasil tangkapannya sama dengan menggunakan lampu merkuri yang digunakan nelayan bagan. Terdapat perbedaan berat hasil tangkapan bagan yang menggunakan lampu merkuri dari pada yang menggunakan lampu LED, namun dari nilai hasil tangkapan tampak tidak berbeda. Berat jenis hasil tangkapan yang dominan tertangkap dengan lampu LED sebanyak17,49 kg/watt sedangkan lampu merkuri sebanyak 4,89 kg/watt. Hasil ini menunjukkan bahwa bagan dengan lampu LED mendapatkan tangkapan lebih banyak dibandingkan dengan bagan lampu merkuri.</p><p><br /><em>Fishing techniques with lift-net fishing gear in Indonesia especially in Barru Regency still usemercury lamp which require considerable electrical energy. Lamps that require low energy is an alternative that </em><em>can be used to reduce the use of electrical energy. Lamps that require low energy, longevity, low heat radiation, and is resistant to shocks is a Light Emitting Diode (LED). The purpose of this research was to </em><em>determine differences in the dominant fish species caught, species composition, and weight of fish caught between the lif net fishing gear that uses a mercury lamp with LED lamp. The research was </em><em>conducted in Barru waters regency, Makassar Strait, South Sulawesi on October-November 2012 and April-May 2013 (50 trips). Observation sites located on 4° 22' 48,7"- 4° 33' 47,8" LS up to 119° 25' 05,0"-</em><em>119° 33' 42,7" BT. The composition of the catch between mercury lamps and LED lamps was dominated by black anchovy, white anchovy, indian mackerel, sardines, squid and golden ponyfish, respectively 90% and 83%. These results indicate that the LED lights can be used as fishing tools because it is able to attract the target fish species and tend to catch higher than mercury lamps that commonly used. The difference in weight of the catch by using a mercury lamp was statistically better than the LED lights, but the value of the catch of the two types of lamps are not statistically different. Catches based upon the weight per electrical power used to indicate that the LED lights (17.49 kg / watt) is better than themercury lamp (4.89 kg / watt).</em></p>

scholarly journals The influence of fishing tools using different feed towards variation of Loligo sp. catches in the Takalar Sea of South Sulawesi, Indonesia

2021 ◽  
Vol 14 (1) ◽  
pp. 25
Author(s):  
Lukman Daris ◽  
Andi Nur Apung Massiseng ◽  
Jaya Jaya ◽  
Irsandi Irsandi
Keyword(s):  
Size Structure ◽  
Light Emitting Diode ◽  
Human Life ◽  
Fishing Gear ◽  
Aquatic Resources ◽  
Light Emitting ◽  
South Sulawesi ◽  
Fishery Products ◽  
Data Collection Technique ◽  
Led Lights

Fishery is one of the human activities to utilize aquatic resources in fresh, brackish and marine waters. This effort is made to meet the needs of human life for the availability of animal protein for growth and as a source of meeting other economic needs. Fishery business consists of components that are interrelated with one another, namely capture fisheries and aquaculture and supported by marketing and processing of fishery products. One of the fishing gear used by fishermen around the coast is a hand line. The purpose of this study was to find out which light are effective in the operation of hand line fishing gear in Takalar waters. The data collection technique was done by using the trial method (Expermental fishing), by conduction trials using two different lamps, namely LED lights (light emitting diode) and petromax lamps. This research was conducted in Takalar Waters in July-August 2020. The results showed that the size structure of the squid and cuttlefish caught on the LED lights ranged from 6- 27.5 cm, totaling 310 tail, weighing 41.15 kg (69.51%), whilw the size structure of the squid caught in the petromax lamp ranges 9,5-27,6 cm totaling 136 tail, weighing 17.91 kg (30.49%), significantly different from the result of t-student.

scholarly journals Pengaruh warna lampu light emitting diode dalam air terhadap hasil tangkapan ikan Teri (Stolephorus commersonii) dengan bagan

2019 ◽  
Vol 4 (2) ◽  
pp. 45
Author(s):  
Christianti Triagneriauly Amos ◽  
Revols Dolfi Chistian Pamikiran ◽  
Patrice Nelson Isaak Kalangi ◽  
Henry James Kumajas
Keyword(s):  
Light Emitting Diode ◽  
Block Design ◽  
Green Water ◽  
Fishing Gear ◽  
Light Emitting ◽  
Led Light ◽  
Randomized Block Design ◽  
Significant Difference ◽  
Different Color ◽  
Led Lights

Lift nets is one of the fishing gear which operate at the night.  This fishing gear are using light as a aids to attract fish into the fishing area.  Research on the use of LED lights in water on lift nets is carried out in Tateli Weru Waters, with the aim to see how the effect of using different color underwater LED lights on anchovy catches (Stolephorus commersonii), and knowing the amount of anchovy (Stolephorus commersonii) catch on lift net using the experimental method, where data is analyzed using Completely Randomized Block Design (RCBD), and continued by Least Significant Difference test (LSD).  Trial of anchovy fishing (Stolephorus commersonii) was conducted in December 2018 for 10 days by operating boat lift nets using green, blue and green-blue LED lights.  The results showed that the use of LED light colors in blue water had a very significant effect on the amount of anchovy catch (Stolephorus comersonii) compared to to the color of LED lights in green-blue and green water.  Whereas the use of LED light colors in blue-green water with green is not statistically significantly different from the amount of anchovy caught (Stolephorus comersonii).ABSTRAKBagan merupakan salah satu alat penangkapan ikan yang dioperasikan pada malam hari.  Alat tangkap ini menggunakan cahaya lampu sebagai alat bantu untuk menarik ikan masuk ke dalam area penangkapan.  Penelitian mengenai penggunaan lampu LED dalam air pada bagan dilakukan di Perairan Tateli Weru, dengan tujuan untuk melihat bagaimana pengaruh penggunaan lampu LED bawah air dengan warna yang berbeda terhadap hasil tangkapan ikan teri (Stolephorus commersonii), serta mengetahui jumlah hasil tangkapan ikan teri (Stolephorus commersonii) pada bagan dengan menggunakan metode eksperimental, dimana data dianalisis dengan menggunakan  Rancangan Acak Kelompok (RAK) dan dilanjutkan dengan uji Beda Nyata Terkecil (BNT).  Uji coba penangkapan ikan teri (Stolephorus commersonii) dilakukan pada bulan Desember 2018 selama 10 hari dengan mengoperasikan bagan apung menggunakan lampu LED hijau, biru dan hijau-biru.  Hasil penelitian menunjukkan bahwa penggunaan warna lampu LED dalam air biru memberikan pengaruh yang sangat nyata terhadap jumlah hasil tangkapan ikan teri (Stolephorus comersonii) dibandingkan warna lampu LED dalam air hijau-biru dan hijau.  Sedangkan antara penggunaan warna lampu LED dalam air hijau-biru dengan hijau secara statistik tidak berbeda nyata terhadap jumlah hasil tangkapan ikan teri (Stolephorus comersonii).

scholarly journals Instalasi PLTS Skala Rumah Tangga dengan Lampu Led Dc Hemat Energi bagi Masyarakat Terpencil di Kabupaten Kubu Raya, Kalimantan Barat

2019 ◽  
Vol 3 (2) ◽  
pp. 17
Author(s):  
Nelly Wahyuni ◽  
Syaifurrahman Syaifurrahman ◽  
Jamhir Islami
Keyword(s):  
Power Plant ◽  
Community Education ◽  
Social Economic ◽  
Light Emitting Diode ◽  
Work Productivity ◽  
Electrical Energy ◽  
Light Emitting ◽  
Remote Areas ◽  
Energy Needs ◽  
Led Lights

ABSTRACTElectrical energy needs are very important for villagers' activities in improving work productivity and education. For people who live in remote areas, such as Sepok Keladi, Sungai Kakap sub-district, Kubu Raya district, fulfilling electricity is a big problem. Because the PLN electricity network has not reached the area. Therefore, the most appropriate solution to overcome the absence of electrical energy in this area is to convert sunlight into electrical energy using photovoltaic technology (Solar Cells). The system for supplying electricity with this system is called the Solar Power Plant (PLTS). Currently,  PLTS is still classified as a power plant with an expensive initial investment. Therefore, installing PLTS is preferred for lighting. For these purposes, the use of lamps that require low power is very important. Energy-saving light Emitting Diode (LED) DC lights are one solution that can be applied to overcome lighting problems in remote areas that receive energy supplies from PLTS. With lighting, it can support social, economic and community education activities, especially at night. Keywords: PLTS, remote areas, LED lights, energy-saving. ABSTRAKKebutuhan energi listrik sangat penting bagi aktivitas warga desa dalam meningkatkan produktivitas kerja dan pendidikan. Bagi masyarakat yang tinggal di daerah terpencil, seperti dusun Sepok Keladi, kecamatan Sungai Kakap kabupaten Kubu Raya, pemenuhan akan energi listrik merupakan masalah besar. Oleh karena jaringan listrik PLN belum menjangkau daerah tersebut. sehingga solusi yang paling tepat untuk mengatasi ketiadaan energi listrik di daerah tersebut adalah dengan mengubah cahaya matahari menjadi energi listrik menggunakan teknologi photovoltaic (Sel Surya). Sistem penyediaan energi listrik dengan sistem ini disebut Pembangkit Listrik Tenaga Surya (PLTS). Saat ini PLTS masih digolongkan sebagai pembangkit listrik dengan investasi awal yang mahal,  Oleh karena itu, pemasangan PLTS lebih diutamakan untuk penerangan. Untuk keperluan tersebut penggunaan lampu yang memerlukan daya rendah sangatlah penting. Lampu light Emitting Diode (LED) DC hemat energi merupakan salah satu solusi yang dapat diterapkan untuk mengatasai masalah penerangan di daerah terpencil yang mendapat suplay energi dari PLTS. Dengan adanya penerangan dapat menunjang aktivitas sosial, ekonomi dan pendidikan masyarakat terutama pada malam hari. Kata Kunci: PLTS, daerah terpencil, Lampu LED, hemat energi

scholarly journals LED Lights Affecting Morphogenesis and Isosteroidal Alkaloid Contents in Fritillaria cirrhosa D. Don—An Important Chinese Medicinal Herb

Plants ◽  
2020 ◽  
Vol 9 (10) ◽  
pp. 1351
Author(s):  
Chia-Chen Chen ◽  
Maw-Rong Lee ◽  
Chi-Rei Wu ◽  
Hsin-Ju Ke ◽  
Hui-Min Xie ◽  
...  
Keyword(s):  
Morphological Changes ◽  
Light Emitting Diode ◽  
Basal Medium ◽  
Gelling Agent ◽  
Embryogenic Calli ◽  
Chinese Medicinal Herb ◽  
Light Emitting ◽  
Light Spectra ◽  
Led Lights ◽  
Fritillaria Cirrhosa

Investigations were carried out to study the effects of light-emitting diode (LED) lights on growth and development of isosteroidal alkaloids in embryogenic calli of Fritillaria cirrhosa D. Don, an important traditional Chinese medicine herb. Calli were cultured in glass bottles, each containing 100 mL of Murashige and Skoog’s basal medium supplemented with 2% sucrose and 0.4% gellan gum powder, a gelling agent. These bottles were incubated in a specially designed plant growth chamber equipped with eight different LED lights consisting of single or combinations of four different light spectra emitting blue (450 nm), green (525 nm), red (660 nm), and far-red (730 nm) light. After three months of incubation, morphological changes in embryogenic calli were recorded, and LC-MS/MS analysis of cultures was carried out for peimisine, sipeimine, peiminine, and peimine. The highest number of somatic embryos and the maximum fresh weight was recorded in calli incubated under red (9R), infrared (9IR), and a combination of red+blue+infrared (3R3B3IR), respectively, in decreasing order. The highest contents of peimisine, peiminine, and peimine were recorded under red (9R) and infrared (9IR) lights, respectively. Eight LED lights had significant effects on the morphogenesis of embryogenic calli of F. cirrhosa D. Don and contents of isosteroidal alkaloids.

scholarly journals Impedance Measures and a Mounting Technique for Drosophila: Larval Movements, Heart Rate, Imaging, and Electrophysiology

2020 ◽  
Vol 3 (1) ◽  
pp. 12
Author(s):  
Noah de Castro ◽  
Robin Lewis Cooper
Keyword(s):  
Neuromuscular Junctions ◽  
Light Emitting Diode ◽  
Bright Light ◽  
Infrared Camera ◽  
Synaptic Function ◽  
Light Emitting ◽  
The Media ◽  
Led Lights ◽  
Suitable Technique ◽  
Larval Movement

Monitoring movements of larval Drosophila with electrical detection allows one to record the behaviors without the use of lights and cameras. This is a suitable technique when studying the use of light-sensitive proteins in optogenetic studies. Electrical measures are feasible to use in determining when a larva starts to move or continues to move after a light induced activation of channelrhodopsin. We have developed a technique using an electrical measure of the media as an index of larval movement. As a proof of concept, recordings with an infrared camera of the larval movement were simultaneous made with electrical measures. The two techniques parallel each other in their ability to index larval movements. Bright light-emitting diode (LED) lights used in optogenetic experiments tend to saturate the detectors of the camera unless filters are used and different filters maybe necessary depending on the LED spectrum and sensitivity of the camera. Impedance measures are independent of the type of LED or brightness. We also assessed the use of a non-solvent based glue (3M Vetbond) to hold larvae in place while measuring synaptic function of neuromuscular junctions, cardiac function and influence of modulators, or activation of light-sensitive channels.

scholarly journals Design of Elliptic Reflective LED Surgical Shadowless Lamps Using Mathematical Optical Tracing Algorithms

2014 ◽  
Vol 2014 ◽  
pp. 1-7
Author(s):  
Cheng-Tang Pan ◽  
Yi-Chian Chen ◽  
Tsung-Lin Yang ◽  
Po-Hsun Lin ◽  
Po-Hung Lin ◽  
...  
Keyword(s):  
Elliptic Curves ◽  
Light Field ◽  
Light Emitting Diode ◽  
Heat Radiation ◽  
Halogen Lamp ◽  
Optical Efficiency ◽  
Light Emitting ◽  
Light Rays ◽  
Mathematical Algorithms ◽  
Freeform Lens

Traditional surgical shadowless halogen lamps are generally designed as projection type with many light bulbs, which can produce not only mercury pollution but also heat radiation that are serious problems to patient. The study utilized Runge-Kutta methods and mathematical algorithms to design and optimize the freeform lens. The LED (light-emitting diode) was adopted to replace the traditional halogen lamp. A uniform lens was designed and fabricated based on the energy conservation. At first, the light field of LED is concentrated through the freeform lens to improve the optical efficiency. Second, the three-shell elliptic curves are applied to the reflective surgical shadowless lamps, where only few LED chips are needed. Light rays emitting from different directions to the target plane can achieve the goal of shadowless. In this study, the LED’s luminance flux is 1,895 lm. The shadow dilution on the target plane is 54%.Ec(central illuminance) is 114,900 lux, and thed50/d10is 57% which is higher than the regulation by 7%, whereas the power consumption is only 20 W. The energy of reflective surgical shadowless lamps can save more than 50%, compared with the traditional projective one.

Discomfort glare caused by white LEDs having different spectral power distributions

2017 ◽  
Vol 50 (6) ◽  
pp. 921-936 ◽  
Author(s):  
WJ Huang ◽  
Y Yang ◽  
M Ronnier Luo
Keyword(s):  
White Light ◽  
Spectral Power ◽  
Light Emitting Diode ◽  
Light Emitting ◽  
White Leds ◽  
Significant Difference ◽  
Discomfort Glare ◽  
Led Lights ◽  
Green Leds

This paper describes an experiment to investigate discomfort glare caused by white light-emitting diode (LED) lights having different spectral power distributions. It included two groups: a ‘Metamerism’ group and a ‘correlated colour temperatures (CCT)’ group. In the former group, it was found that white lights at 7000 K constructed from different blue LEDs and the same red and green LEDs gave about the same glare perception. In the latter group, there was a significant difference in glare perception between white lights having different CCTs. Finally, glare models, including unified glare rating (UGR) and the newly derived QUGRspd, and mUGRspd models, were tested using the data from the experiment. All of them gave quite accurate predictions of the data.

scholarly journals Data Communication Security Issues of Wi-Fi over Li-Fi

2019 ◽  
Vol 8 (3) ◽  
pp. 1977-1981
Keyword(s):  
Light Emitting Diode ◽  
Denial Of Service ◽  
Data Communication ◽  
Electrical Signal ◽  
Visible Light Communications ◽  
Light Emitting ◽  
Security Issues ◽  
The One ◽  
Audio Video ◽  
Led Lights

Visible Light Communications (VLC) system is called Light Fidelity One such example, analog data is passed to a LED (Light-Emitting Diode) bulb (using signal processing technology), after that it transmits data (which is implanted in its beam) to the detector or photodiode. The small commutes in the brisk feeble of LED bulbs is modulated by the receiver circuit into electrical signal. The signal is then reversed into a duplex data runnel that could be recognized in the same way that of audio, video and web programs that run on devices that has internet enabled. Wi-Fi is vulnerable to breaches involving various security issues such as Rouge Access Points, Denial of Service, Wireless Trespasser, Data Interruption, End point attacks etc. To overcome such restrictions, this paper proposes application level substructure for data communication using Li-Fi (Light Fidelity) Technology. By using LED lights as a transmission medium, the indoor wireless communication is achieved in much faster rate than the one WiFi (Wireless Fidelity) can provide.

scholarly journals Phototactic Response of the Oriental Armyworm, Mythimna separata (Lepidoptera: Noctuidae), to Light-Emitting Diode Lights of Different Wavelengths

2019 ◽  
Author(s):  
Kil-Nam Kim ◽  
Hye-Sung Song ◽  
Ryong-Jin Choe ◽  
Zhi-Juan Huang ◽  
Qiu-Ying Huang ◽  
...  
Keyword(s):  
Light Emitting Diode ◽  
Insect Pest ◽  
Light Trap ◽  
Mythimna Separata ◽  
Light Emitting ◽  
Led Light ◽  
Phototactic Response ◽  
Green Led ◽  
Oriental Armyworm ◽  
Led Lights

Recently, light traps using light-emitting diode (LED) lights have been applied to monitor or control insect pests. The oriental armyworm, Mythimna separata Walker, is an important insect pest that has caused damage to several cereal crops, including corn, wheat and rice. The present study aims to seek out a sensitive wavelength causing high phototactic response in M. separata. The study evaluated the phototactic responses of M. separata moths to several LED lights of different wavelengths and luminance intensities under laboratory condition. Results showed that green (520 nm) LED light resulted in significant phototactic response of M. separata moths compared to LED lights of other wavelengths. Additionally, the highest attraction rate of the moths to green LED light appeared in luminance intensity group of 200 lux compared to the other intensities groups. Experiments under optimum conditions based on the above experiments revealed that the green LED light exhibited the strongest attraction rate (64.44%) among all experimental groups. An experiment performed in a net cage also showed that green LED light resulted in the highest phototactic response of M. separata moths, 1.7 times more than a commercial black light used as control. These findings clearly demonstrate that M. separata moths have a high sensitivity to the green LED light. Therefore, a light trap equipped with green LED light could be useful for monitoring and controlling M. separata moths.

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