BANDAGE FITTING ALGORITHM IN A HORIZONTAL TANK WITH HAZARDOUS CHEMICALS

2019 ◽  
Vol 4 ◽  
pp. 62-68
Author(s):  
Alexei Denisov ◽  
◽  
Sergei Sheremetiev ◽  
Keyword(s):  
Hazardous Chemicals ◽  
Fitting Algorithm ◽  
Horizontal Tank

IMPLEMENTASIROTTERDAM CONVENTION ON THE PRIOR INFORMED CONSENT PROCEDURE FOR CERTAIN HAZARDOUS CHEMICALS AND PESTICIDES IN INTERNATIONAL TRADEBAGI PERKEMBANGAN HUKUM LINGKUNGAN DI INDONESIA

2019 ◽  
Vol 5 (1) ◽  
pp. 90
Author(s):  
Elly Kristiani Purwendah ◽  
Elisabet Pudyastiwi
Keyword(s):  
Informed Consent ◽  
Hazardous Chemicals ◽  
Informed Consent Procedure ◽  
Prior Informed Consent ◽  
Consent Procedure

Konvensi ini memang tidak langsung memberikan efek yang signifikan namun dengan meratifikasi konvensi ini akan memberikan pengaruh terhadap kelangsungan ekspor bahan mentah terlebih sumber daya alam seperti bahan obat-obatan, bahan pangan dan bahan lainnya yang terkontaminasi oleh bahan kimia dan pestisida berbahaya. Ratifikasi konvensi ini akan mempersempit kemungkinan menurunnya kualitas keanekaragaman hayati yang sering dimanfaatkan untuk kebutuhan hidup. Selain itu adanya konvensi ini akan mencegah munculnya masalah terhadap lapangan pekerjaan bagi pihak-pihak yang terkontaminasi limbah maupun bahan kimia dan pestisida yang berbahaya seperti para petani, nelayan dan masyarakat pada umumnya. Jika ditelaah secara mendalam jumlah ekpor pada sektor pertanian setiap tahun terus mengalami penurunan, hal ini disebabkan oleh menurunya kualitas ekosistem persawahan akibat pemakaian pestisida yang berlebihan. Kata kunci : Konvensi Rotterdam, ratifikasi, hukum lingkungan. 

A Technique to Determine Unsteady-State Inhibition Kinetics in the Activated Sludge Process

1989 ◽  
Vol 21 (6-7) ◽  
pp. 593-602 ◽  
Author(s):  
Andrew T. Watkin ◽  
W. Wesley Eckenfelder
Keyword(s):  
Activated Sludge ◽  
Kinetic Parameters ◽  
Curve Fitting ◽  
Glucose Utilization ◽  
Batch Reactor ◽  
Synthetic Data ◽  
Utilization Rate ◽  
Fitting Algorithm ◽  
Test Reactor ◽  
Two Parameter

A technique for rapidly determining Monod and inhibition kinetic parameters in activated sludge is evaluated. The method studied is known as the fed-batch reactor technique and requires approximately three hours to complete. The technique allows for a gradual build-up of substrate in the test reactor by introducing the substrate at a feed rate greater than the maximum substrate utilization rate. Both inhibitory and non-inhibitory substrate responses are modeled using a nonlinear numerical curve-fitting technique. The responses of both glucose and 2,4-dichlorophenol (DCP) are studied using activated sludges with various acclimation histories. Statistically different inhibition constants, KI, for DCP inhibition of glucose utilization were found for the various sludges studied. The curve-fitting algorithm was verified in its ability to accurately retrieve two kinetic parameters from synthetic data generated by superimposing normally distributed random error onto the two parameter numerical solution generated by the algorithm.

scholarly journals Laser Lens Size Measurement Using Swept-Source Optical Coherence Tomography

2020 ◽  
Vol 10 (14) ◽  
pp. 4936
Author(s):  
Pingping Jia ◽  
Hong Zhao ◽  
Yuwei Qin
Keyword(s):  
Optical Coherence Tomography ◽  
High Speed ◽  
Wave Number ◽  
Radius Of Curvature ◽  
Optical Coherence ◽  
Swept Source ◽  
Laser Focusing ◽  
Fitting Algorithm ◽  
Laser Confocal Microscope ◽  
Focusing Lens

A high-speed, high-resolution swept-source optical coherence tomography (SS-OCT) is presented for focusing lens imaging and a k-domain uniform algorithm is adopted to find the wave number phase equalization. The radius of curvature of the laser focusing lens was obtained using a curve-fitting algorithm. The experimental results demonstrate that the measuring accuracy of the proposed SS-OCT system is higher than the laser confocal microscope. The SS-OCT system has great potential for surface topography measurement and defect inspection of the focusing lens.

scholarly journals Toxic remains: Infrastructural failure in a Ugandan molecular biology lab

2021 ◽  
pp. 030631272110115
Author(s):  
Sandra Calkins
Keyword(s):  
Molecular Biology ◽  
Hazardous Chemicals ◽  
Biology Lab

This article complicates romances of infrastructural improvisation by describing infrastructural failures that expose researchers to hazardous chemicals in a Ugandan molecular biology lab. To meet project deadlines, to make careers and to participate in transnational collaborative projects, Ugandan biologists have to stand in for decaying or absent infrastructures with their bodies. Ugandan biologists hide such sacrifices from their international scientific partners and direct the blame elsewhere. An unclear culpability results precisely from the ways in which power works and is distributed across transnational scientific infrastructures.

scholarly journals Measurement Improvement of Distributed Optical Fiber Sensor via Lorenz Local Single Peak Fitting Algorithm

Symmetry ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 1166
Author(s):  
Bin Liu ◽  
Jianping He ◽  
Shihai Zhang ◽  
Yinping Zhang ◽  
Jianan Yu ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Frequency Shift ◽  
Optical Fiber Sensor ◽  
Gain Spectrum ◽  
Fiber Sensor ◽  
Peak Fitting ◽  
Fitting Algorithm ◽  
Distributed Optical Fiber Sensor ◽  
Brillouin Gain ◽  
Distributed Optical Fiber

Brillouin frequency shift (BFS) of distributed optical fiber sensor is extracted from the Brillouin gain spectrum (BGS), which is often characterized by Lorenz type. However, in the case of complex stress and optical fiber self damage, the BGS will deviate from Lorenz type and be asymmetric, which leads to the extraction error of BFS. In order to enhance the extraction accuracy of BFS, the Lorenz local single peak fitting algorithm was developed to fit the Brillouin gain spectrum curve, which can make the BSG symmetrical with respect to the Brillouin center frequency shift. One temperature test of a fiber-reinforced polymer (FRP) packaged sensor whose BSG curve is asymmetric was conducted to verify the idea. The results show that the local region curve of BSG processed by the developed algorithm has good symmetry, and the temperature measurement accuracy obtained by the developed algorithm is higher than that directly measured by demodulation equipment. Comparison with the reference temperature, the relative measurement error measured by the developed algorithm and BOTDA are within 4% and 8%, respectively.

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