Chemical enhancement method for the determination of mercury by spectrophotometry after iodide extraction

Talanta ◽  
1994 ◽  
Vol 41 (2) ◽  
pp. 255-260 ◽  
Author(s):  
P Padmaja
Keyword(s):  
Chemical Enhancement ◽  
Enhancement Method

A chemical enhancement method for the spectrophotometric determination of trace amounts of arsenic

Talanta ◽  
1992 ◽  
Vol 39 (5) ◽  
pp. 555-561 ◽  
Author(s):  
K. Palanivelu ◽  
N. Balasubramanian ◽  
T.V. Ramakrishna
Keyword(s):  
Spectrophotometric Determination ◽  
Chemical Enhancement ◽  
Enhancement Method

Medical Image Enhancement Using Edge Information-Based Methods

2017 ◽  
pp. 123-148
Author(s):  
S. Anand
Keyword(s):  
Image Enhancement ◽  
Medical Image ◽  
Hyperbolic Function ◽  
Edge Information ◽  
X Ray ◽  
Enhancement Method ◽  
Chest X Ray ◽  
Medical Image Enhancement

Medical image enhancement improves the quality and facilitates diagnosis. This chapter investigates three methods of medical image enhancement by exploiting useful edge information. Since edges have higher perceptual importance, the edge information based enhancement process is always of interest. But determination of edge information is not an easy job. The edge information is obtained from various approaches such as differential hyperbolic function, Haar filters and morphological functions. The effectively determined edge information is used for enhancement process. The retinal image enhancement method given in this chapter improves the visual quality of the vessels in the optic region. X-ray image enhancement method presented here is to increase the visibility of the bones. These algorithms are used to enhance the computer tomography, chest x-ray, retinal, and mammogram images. These images are obtained from standard datasets and experimented. The performance of these enhancement methods are quantitatively evaluated.

scholarly journals Microwave Planar Sensor for Permittivity Determination of Dielectric Materials

2018 ◽  
Vol 11 (1) ◽  
pp. 362 ◽  
Author(s):  
Rammah Alahnomi ◽  
Natasha Binti Abd Hamid ◽  
Zahriladha Zakaria ◽  
Tole Sutikno ◽  
Amyrul Azuan Mohd Bahar
Keyword(s):  
Transmission Line ◽  
Resonance Frequency ◽  
Food Industry ◽  
Return Loss ◽  
Ring Resonator ◽  
Single Port ◽  
Dielectric Materials ◽  
Q Factor ◽  
Enhancement Method

<p>This paper presents a single port rectangular ring resonator sensor for material characterizations. The proposed sensor is designed at operating resonance frequency of 4 GHz. The sensor consists of micro-strip transmission line and ring resonator with applying the enhancement method to the coupling gaps. The using of enhancement method is to improve the return loss of the sensor and sensitivity in terms of Q-factor, respectively. Furthermore, the proposed sensor is designed and fabricated on Roger 5880 substrate. Standard materials with known permittivity have been used in order to validate the sensor’s sensitivity. Based on the results, the percentage of error for the proposed rectangular sensor is 0.2% to 8%. It can be demonstrated that the proposed sensor will be useful for various applications such as medicine, bio-sensing and food industry.</p>

Medical Image Enhancement Using Edge Information-Based Methods

Biometrics ◽  
2017 ◽  
pp. 1701-1726
Author(s):  
S. Anand
Keyword(s):  
Image Enhancement ◽  
Medical Image ◽  
Hyperbolic Function ◽  
Edge Information ◽  
X Ray ◽  
Enhancement Method ◽  
Chest X Ray ◽  
Medical Image Enhancement

Medical image enhancement improves the quality and facilitates diagnosis. This chapter investigates three methods of medical image enhancement by exploiting useful edge information. Since edges have higher perceptual importance, the edge information based enhancement process is always of interest. But determination of edge information is not an easy job. The edge information is obtained from various approaches such as differential hyperbolic function, Haar filters and morphological functions. The effectively determined edge information is used for enhancement process. The retinal image enhancement method given in this chapter improves the visual quality of the vessels in the optic region. X-ray image enhancement method presented here is to increase the visibility of the bones. These algorithms are used to enhance the computer tomography, chest x-ray, retinal, and mammogram images. These images are obtained from standard datasets and experimented. The performance of these enhancement methods are quantitatively evaluated.

scholarly journals Microwave Planar Sensor for Determination of the Permittivity of Dielectric Material

2018 ◽  
Vol 7 (4) ◽  
pp. 640-649
Author(s):  
Mohd Khairy Ismail ◽  
Zahriladha Zakaria ◽  
Nornikman Hassan ◽  
Sam Weng Yik ◽  
Mohd Mawardy Abdullah
Keyword(s):  
Transmission Line ◽  
Resonance Frequency ◽  
Return Loss ◽  
Dielectric Material ◽  
Single Port ◽  
Microwave Resonator ◽  
Q Factor ◽  
Enhancement Method

This paper proposed a single port rectangular microwave resonator sensor. This sensor operates at the resonance frequency of 4GHz. The sensor consists of micro-strip transmission line and applied the enhancement method. The enhancement method is able to improve the return loss of the sensor, respectively. Plus, the proposed sensor is designed and fabricated on Roger 5880 substrate. Based on the results, the percentage of error for the proposed rectangular sensor is 0.2% to 8%. The Q-factor of the sensor is 174.

An immediate luminescence enhancement method for determination of vitamin B1 using long-wavelength emitting water-soluble CdTe nanorods

2010 ◽  
Vol 169 (1-2) ◽  
pp. 65-71 ◽  
Author(s):  
Yan Li ◽  
Peng Wang ◽  
Xin Wang ◽  
Ming Cao ◽  
YunSheng Xia ◽  
...  
Keyword(s):  
Vitamin B1 ◽  
Water Soluble ◽  
Luminescence Enhancement ◽  
Long Wavelength ◽  
Enhancement Method

Fluorescence enhancement method for the determination of nucleic acids using cationic cyanine as a fluorescence probe

The Analyst ◽  
2004 ◽  
Vol 129 (3) ◽  
pp. 254 ◽  
Author(s):  
Chang-Qing Zhu ◽  
Shu-Juan Zhuo ◽  
Hong Zheng ◽  
Jin-Long Chen ◽  
Dong-Hui Li ◽  
...  
Keyword(s):  
Nucleic Acids ◽  
Fluorescence Enhancement ◽  
Fluorescence Probe ◽  
Enhancement Method

Galactic orbits of stars

1966 ◽  
Vol 25 ◽  
pp. 93-97
Author(s):  
Richard Woolley
Keyword(s):  
Globular Cluster ◽  
Potential Field ◽  
High Velocity ◽  
Velocity Vector ◽  
Variable Stars ◽  
The Sun ◽  
Proper Motions ◽  
Rr Lyrae ◽  
The Galaxy

It is now possible to determine proper motions of high-velocity objects in such a way as to obtain with some accuracy the velocity vector relevant to the Sun. If a potential field of the Galaxy is assumed, one can compute an actual orbit. A determination of the velocity of the globular clusterωCentauri has recently been completed at Greenwich, and it is found that the orbit is strongly retrograde in the Galaxy. Similar calculations may be made, though with less certainty, in the case of RR Lyrae variable stars.

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