Analysis of performance of high light-energy-utilization-ratio laser communication antenna based on axicon

2017 ◽  
Author(s):  
Chao Wang ◽  
Ying-chao Li ◽  
Lun Jiang ◽  
Zhuang Liu
Keyword(s):  
High Light ◽  
Light Energy ◽  
Energy Utilization ◽  
Laser Communication ◽  
Utilization Ratio ◽  
Analysis Of Performance

Analysis of Performance of High Light-energy-utilization-ratio Laser Communication Antenna Based on Axicon Pair

2017 ◽  
Vol 46 (7) ◽  
pp. 706002
Author(s):  
刘显著 LIU Xian-zhu ◽  
王超 WANG Chao ◽  
李英超 LI Ying-chao ◽  
江伦 JIANG Lun ◽  
刘壮 LIU Zhuang ◽  
...  
Keyword(s):  
High Light ◽  
Light Energy ◽  
Energy Utilization ◽  
Laser Communication ◽  
Utilization Ratio ◽  
Analysis Of Performance

Design and experiment of a soft-edge aperture with high light energy utilization efficiency and uniformity

2020 ◽  
Vol 59 (18) ◽  
pp. 5348
Author(s):  
Liwei Liu ◽  
Lifang Shi ◽  
Axiu Cao ◽  
Hui Pang ◽  
Wei Yan ◽  
...  
Keyword(s):  
High Light ◽  
Light Energy ◽  
Energy Utilization ◽  
Utilization Efficiency ◽  
Soft Edge

scholarly journals ANALISA ENERGI DAN EKSERGI PADA PENGERINGAN TEPUNG TAPIOKA MENGGUNAKAN PENGERING KONTINYU UNGGUN FLUIDISASI GETAR

REAKTOR ◽  
2016 ◽  
Vol 16 (1) ◽  
pp. 24 ◽  
Author(s):  
Suherman Suherman ◽  
Rona Trisnaningtyas
Keyword(s):  
Energy Efficiency ◽  
Fluidized Bed ◽  
Exergy Analysis ◽  
Cassava Starch ◽  
Energy Utilization ◽  
Exergetic Efficiency ◽  
Energy And Exergy ◽  
Vibrated Fluidized Bed ◽  
Energy And Exergy Analysis ◽  
Utilization Ratio

Energy and exergy analysis of cassava starch drying in continuous vibrated fluidized bed dryer were carried out to assess the performance of the system in terms of energy utilization ratio, energy efficiency, exergy inflow and outflow, exergy loss, and exergetic efficiency. The results showed cassava starch has starch content 87%, degree of whiteness 95%, negative fiber content, sperichal granula with average diameter12.32 μm, orthorhombic crystal structure and crystal size 47.467 nm . Energy utilization and energy utilization ratio increased from 0.08 to 0.20 J/s and 0.35 to 0.4 as the drying temperature  increased from 50 to 70 oC. Energy efficiency increased from 13.80 % to 23.31 %, while exergy inflow, outflow, and losses increased from 4.701 to 14.678, 2.277 to 6.344, and 2.424 to 8.334 J/s respectively in the above temperature range. Exergetic efficiency decreased with increase in drying air temperature, while exergetic improvement potential increased with increased drying air temperature. Keywords: Cassava starch, continuous drying, energy and exergy analysis, vibrated fluidized bed Abstrak Analisis energi dan eksergi pengeringan pati tapioka menggunakan pengering kontinu unggun fluidisasi getar, telah dilakukan untuk menilai kinerja sistem dalam bentuk utilisasi energi, efisiensi energi, eksergi masuk dan keluar, eksergi hilang dan efisiensi eksergi. Hasil analisis pati memiliki kandungan starch 87%, tingkat keputihan 95%, kandungan serat negatif, bentuk partikel granular spherical dengan diameter 12,32 μm, struktur kristal orthorhombic dan ukuran kristal sebesar 47,467 nm. Peningkatan suhu pengering dari 50 menjadi 70 0C akan meningkatkan utilisasi energi dan rasio utilisasi energi dari 0,08 menjadi 0,20 J/s dan 0,35 menjadi 0,4. Efisiensi energi meningkat dari 13,80% hingga 23,31%, sedangkan eksergi masuk dan keluar, eksergi hilang meningkat dari 4,701 menjadi 14,678, 2,277 menjadi 6,344, dan 2,424 menjadi 8,334 J/s. Efisiensi eksergi menurun dengan naiknya suhu sedangkan potensi pengembangan eksergi meningkat dengan naiknya suhu. Kata kunci:. Analisis energi dan eksergi, pati tapioka, pengeringan kontinu, unggun fluidisasi getar

THE INFLUENCE OF THE RATIO OF INCANDESCENT TO FLUORESCENT LIGHT ON THE FLOWERING RESPONSE OF MARQUIS WHEAT GROWN UNDER CONTROLLED CONDITIONS

1961 ◽  
Vol 41 (2) ◽  
pp. 418-427 ◽  
Author(s):  
D. J. C. Friend ◽  
V. A. Helson ◽  
J. E. Fisher
Keyword(s):  
Stem Elongation ◽  
High Light ◽  
Light Energy ◽  
Fluorescent Light ◽  
Floral Initiation ◽  
Incandescent Light ◽  
Flowering Response ◽  
Controlled Conditions ◽  
Floral Differentiation ◽  
Plant Level

When Marquis wheat is grown under artificial conditions, the main light energy (lamp watts) supplied by fluorescent light should be supplemented by at least 35 per cent of incandescent light in order to have a photoperiodic effect close to the maximal. Increasing the percentage up to 100 per cent resulted in slightly earlier flowering. This effect of incandescent light was caused, not by earlier floral initiation, but by an increase in the rate of stem elongation and a hastening of the later stages of floral differentiation. This action of incandescent light could not be replaced by substituting pink fluorescent for one-third of the white fluorescent lights.To obtain a photoperiodic effect equal to that of high light energy from combined fluorescent and incandescent bulbs, it is recommended that the daylength be extended by sufficient incandescent light to give an intensity of at least 50 ft.-c. at plant level.

High Yield Achieved by Early-Maturing Rapeseed with High Light Energy and Temperature Production Efficiencies under Ideal Planting Density

Crop Science ◽  
2019 ◽  
Vol 59 (1) ◽  
pp. 351-362 ◽  
Author(s):  
Zhenghua Xu ◽  
Tao Luo ◽  
Na Rao ◽  
Liang Yang ◽  
Jiahuan Liu ◽  
...  
Keyword(s):  
High Light ◽  
Light Energy ◽  
Planting Density ◽  
High Yield ◽  
Early Maturing ◽  
Production Efficiencies

Effects of temperature and water availability on light energy utilization in photosynthetic processes ofDeschampsia antarctica

2018 ◽  
Vol 165 (3) ◽  
pp. 511-523 ◽  
Author(s):  
Patricia L. Sáez ◽  
Betsy K. Rivera ◽  
Constanza F. Ramírez ◽  
Valentina Vallejos ◽  
Lohengrin A. Cavieres ◽  
...  
Keyword(s):  
Water Availability ◽  
Light Energy ◽  
Energy Utilization ◽  
Effects Of Temperature

scholarly journals Optimization of photosynthetic light energy utilization by microalgae

2012 ◽  
Vol 1 (2) ◽  
pp. 134-142 ◽  
Author(s):  
Zoee Perrine ◽  
Sangeeta Negi ◽  
Richard T. Sayre
Keyword(s):  
Light Energy ◽  
Energy Utilization

scholarly journals Experimental Study on the Dynamic Mechanical Properties of Large-Diameter Mortar and Concrete Subjected to Cyclic Impact

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Bi Sun ◽  
Yang Ping ◽  
Zhende Zhu ◽  
Zhijian Jiang ◽  
Nan Wu
Keyword(s):  
Damage Evolution ◽  
Large Diameter ◽  
Peak Stress ◽  
Impact Pressure ◽  
Energy Utilization ◽  
Dynamic Mechanical ◽  
Shpb Test ◽  
Utilization Ratio ◽  
Cyclic Impact ◽  
The Impact

Rock bursts are typically accompanied by multiple shocks. In order to explore the dynamic characteristics of filling materials in rock burst roadways, we employ the split Hopkinson pressure bar (SHPB) test to analyze the dynamic mechanical response of mortar and concrete under cyclical impact. The SHPB test results of the large-size specimen indicate the improvement in the waveform shape and the reduction in the wave dispersion via the application of the rubber sheet as the pulse shaper. Under cyclic impact, the peak stress and energy utilization ratio of mortar and concrete specimens were reduced, demonstrating obvious fatigue characteristics. The mortar peak stress and energy utilization ratio were observed to be sensitive to the impact times, while those of concrete were sensitive to impact pressure. The damage evolution of mortar and concrete exhibited very similar trends under the cyclic impact load, whereby the impact pressure had minimal effect on the damage evolution.

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