scholarly journals Frequency-Modulated Lorentz Force Magnetometer With Enhanced Sensitivity via Mechanical Amplification

2015 ◽  
Vol 36 (1) ◽  
pp. 62-64 ◽  
Author(s):  
Mo Li ◽  
Sarah Nitzan ◽  
David A. Horsley
Keyword(s):  
Lorentz Force ◽  
Enhanced Sensitivity ◽  
Mechanical Amplification

A microelectromechanical system (MEMS) capacitive accelerometer-based microphone with enhanced sensitivity for fully implantable hearing aid: a novel analytical approach

2020 ◽  
Vol 65 (6) ◽  
pp. 735-746
Author(s):  
Apoorva Dwivedi ◽  
Gargi Khanna
Keyword(s):  
Analytical Approach ◽  
Bone Structure ◽  
Design Parameters ◽  
Comsol Multiphysics ◽  
Implantable Hearing Aid ◽  
Microelectromechanical System ◽  
Capacitive Accelerometer ◽  
Enhanced Sensitivity ◽  
Mechanical Amplification ◽  
The Impact

AbstractThe present work proposes a novel, compact, intuitively simple and efficient structure to improve the sensitivity of a microelectromechanical system (MEMS) capacitive accelerometer using an arrangement of microlever as a displacement amplifier. The accelerometer is proposed to serve as a microphone in the fully implantable cochlear prosthetic system which can be surgically implanted at the middle ear bone structure. Therefore, the design parameters such as size, weight and resonant frequency require deliberation. The paper presents a novel analytical model considering the impact of the mechanical amplification along with the width of the microlever and the capacitive fringe effects on the performance of the sensor. The design is simulated and verified using COMSOL MULTIPHYSICS 4.2. The accelerometer is designed within a sensing area of 1 mm2 and accomplishes a nominal capacitance of 4.85 pF and an excellent sensitivity of 5.91 fF/g.

Eyes and ears: Rejection and enhanced sensitivity to auditory and visual social cues

2003 ◽  
Author(s):  
Cynthia L. Pickett ◽  
Wendi L. Gardner ◽  
Megan Knowles
Keyword(s):  
Social Cues ◽  
Enhanced Sensitivity

Numerical Studies on Behavior of Lorentz-Force-Applied Boundary Layer in Supersonic Flow

2009 ◽  
Vol 129 (6) ◽  
pp. 831-839
Author(s):  
Keisuke Udagawa ◽  
Sadatake Tomioka ◽  
Hiroyuki Yamasaki
Keyword(s):  
Boundary Layer ◽  
Supersonic Flow ◽  
Lorentz Force ◽  
Numerical Studies

ALCOHOL-PREFERRING AA RATS EXPRESS ENHANCED SENSITIVITY TO STIMULATORY EFFECTS OF MORPHINE

Analgesia ◽  
1995 ◽  
Vol 1 (4) ◽  
pp. 461-464 ◽  
Author(s):  
A. Honkanen ◽  
E.R. Korpi ◽  
L. Ahtee
Keyword(s):  
Enhanced Sensitivity

Mass Spectrometry for Proteomics and Recent Developments in ESI, MALDI and other Ionization Methodologies

2019 ◽  
Vol 16 (4) ◽  
pp. 267-276
Author(s):  
Qurat ul Ain Farooq ◽  
Noor ul Haq ◽  
Abdul Aziz ◽  
Sara Aimen ◽  
Muhammad Inam ul Haq
Keyword(s):  
Mass Spectrometry ◽  
Electrospray Ionization ◽  
New Technologies ◽  
Protein Complexes ◽  
Imaging Techniques ◽  
Desorption Electrospray Ionization ◽  
High Throughput Analysis ◽  
Enhanced Sensitivity ◽  
Recent Developments ◽  
The Way

Background: Mass spectrometry is a tool used in analytical chemistry to identify components in a chemical compound and it is of tremendous importance in the field of biology for high throughput analysis of biomolecules, among which protein is of great interest. Objective: Advancement in proteomics based on mass spectrometry has led the way to quantify multiple protein complexes, and proteins interactions with DNA/RNA or other chemical compounds which is a breakthrough in the field of bioinformatics. Methods: Many new technologies have been introduced in electrospray ionization (ESI) and Matrixassisted Laser Desorption/Ionization (MALDI) techniques which have enhanced sensitivity, resolution and many other key features for the characterization of proteins. Results: The advent of ambient mass spectrometry and its different versions like Desorption Electrospray Ionization (DESI), DART and ELDI has brought a huge revolution in proteomics research. Different imaging techniques are also introduced in MS to map proteins and other significant biomolecules. These drastic developments have paved the way to analyze large proteins of >200kDa easily. Conclusion: Here, we discuss the recent advancement in mass spectrometry, which is of great importance and it could lead us to further deep analysis of the molecules from different perspectives and further advancement in these techniques will enable us to find better ways for prediction of molecules and their behavioral properties.

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