scholarly journals Cu (Cuprum) Pollution Effect from Shrimp Processing

Author(s):  
Akas Yekti Pulih Asih ◽  
Abdul Muhith ◽  
Abdul Hakim Zakkiy Fasya ◽  
H Hermanto
Keyword(s):  
2013 ◽  
Vol 444-445 ◽  
pp. 1471-1476
Author(s):  
Shuang Wang ◽  
Qi Bai Huang ◽  
Shan De Li

It is well known that traditional finite element (FEM) is an efficient method in solving engineering problems. However, when solving the acoustic problems in medium frequency, FEM suffers from the so-called pollution effect, which is directly related to the dispersion. In this paper, meshless method based on radial basis function (RBF) is introduced to solve the acoustic problem, which shows that the dispersion can be greatly reduced, thus it is very suitable for the solution of mid-frequency acoustic problem. In addition, an algorithm is presented to treat the boundary condition, which improves the performance of the meshless method.


2009 ◽  
Vol 21 (9) ◽  
pp. 1186-1193 ◽  
Author(s):  
Hongbing LUO ◽  
Lin LUO ◽  
Gu HUANG ◽  
Ping LIU ◽  
Jingxian LI ◽  
...  

2018 ◽  
Vol 198 ◽  
pp. 240-256 ◽  
Author(s):  
Josefine Larsson ◽  
Katarzyna Smolarz ◽  
Justyna Świeżak ◽  
Magda Turower ◽  
Natalia Czerniawska ◽  
...  

2007 ◽  
Vol 3 (4) ◽  
pp. 342-350 ◽  
Author(s):  
Moin A. Khan ◽  
M. Badruzzama ◽  
Saima Bhat ◽  
Danish Shahab

2010 ◽  
Vol 96 (2-3) ◽  
pp. 477-488 ◽  
Author(s):  
Carlos A. Morales Rodriguez ◽  
Rosmeri P. da Rocha ◽  
Rodrigo Bombardi

2020 ◽  
Vol 12 (13) ◽  
pp. 2124
Author(s):  
Przemyslaw Tabaka

This article presents the methodology and results of pilot field illuminance measurements using an unmanned aerial vehicle (UAV). The main goal of the study was to quantify the luminous flux emitted in the upper hemisphere (toward the sky) based on obtained measurement data. The luminous flux emitted toward the sky is the source of undesirable light pollution. For test purposes, a height-adjustable mobile park lantern was constructed, at the top of which any type of luminaire can be installed. In the pilot measurements, two real opal sphere-type luminaires were considered. The lantern was situated in an open area located away from a large city agglomeration. To determine the unusable luminous flux, illuminance was measured, placing the necessary measuring equipment on board a UAV. The measurements were supplemented with the registration of illuminance on the ground upon which the lantern was installed. Based on these data, the useful luminous flux was calculated. The findings show that UAVs may be successfully used for the assessment of the influence of lighting on the light pollution effect.


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