Investigation and Refinement of Palladium-Coupling Conditions for the Synthesis of Diarylethyne-Linked Multiporphyrin Arrays

1999 ◽  
Vol 11 (10) ◽  
pp. 2974-2983 ◽  
Author(s):  
Richard W. Wagner ◽  
Yangzhen Ciringh ◽  
Christian Clausen ◽  
Jonathan S. Lindsey
Keyword(s):  
Coupling Conditions ◽  
Palladium Coupling

scholarly journals Spontaneous Emission Spectrum of a WS2 Monolayer under Strong Coupling Conditions

2020 ◽  
Vol 4 (1) ◽  
pp. 9
Author(s):  
Vasilios Karanikolas ◽  
Ioannis Thanopulos ◽  
Emmanuel Paspalakis
Keyword(s):  
Emission Spectrum ◽  
Strong Coupling ◽  
Spontaneous Emission ◽  
Two Dimensional ◽  
Spontaneous Emission Spectrum ◽  
Light Confinement ◽  
Coupling Conditions ◽  
Two Dimensional Materials ◽  
All Optical ◽  
Ws2 Monolayer

Two-dimensional materials allow for extreme light confinement, thus becoming important candidates for all optical application platforms.  [...]

scholarly journals CMUT-Based Sensor for Acoustic Emission Application: Experimental and Theoretical Contributions to Sensitivity Optimization

Sensors ◽  
2021 ◽  
Vol 21 (6) ◽  
pp. 2042
Author(s):  
Redha Boubenia ◽  
Patrice Le Moal ◽  
Gilles Bourbon ◽  
Emmanuel Ramasso ◽  
Eric Joseph
Keyword(s):  
Signal Processing ◽  
Signal To Noise Ratio ◽  
Ultrasonic Transducer ◽  
Operating Conditions ◽  
Geometrical Parameters ◽  
Signal To Noise ◽  
Coupling Conditions ◽  
Sensor Structure ◽  
Noise Ratio ◽  
Electrical Connections

The paper deals with a capacitive micromachined ultrasonic transducer (CMUT)-based sensor dedicated to the detection of acoustic emissions from damaged structures. This work aims to explore different ways to improve the signal-to-noise ratio and the sensitivity of such sensors focusing on the design and packaging of the sensor, electrical connections, signal processing, coupling conditions, design of the elementary cells and operating conditions. In the first part, the CMUT-R100 sensor prototype is presented and electromechanically characterized. It is mainly composed of a CMUT-chip manufactured using the MUMPS process, including 40 circular 100 µm radius cells and covering a frequency band from 310 kHz to 420 kHz, and work on the packaging, electrical connections and signal processing allowed the signal-to-noise ratio to be increased from 17 dB to 37 dB. In the second part, the sensitivity of the sensor is studied by considering two contributions: the acoustic-mechanical one is dependent on the coupling conditions of the layered sensor structure and the mechanical-electrical one is dependent on the conversion of the mechanical vibration to electrical charges. The acoustic-mechanical sensitivity is experimentally and numerically addressed highlighting the care to be taken in implementation of the silicon chip in the brass housing. Insertion losses of about 50% are experimentally observed on an acoustic test between unpackaged and packaged silicon chip configurations. The mechanical-electrical sensitivity is analytically described leading to a closed-form amplitude of the detected signal under dynamic excitation. Thus, the influence of geometrical parameters, material properties and operating conditions on sensitivity enhancement is clearly established: such as smaller electrostatic air gap, and larger thickness, Young’s modulus and DC bias voltage.

Evaluation of 3D radio-frequency electromagnetic fields for any matching and coupling conditions by the use of basis functions

2015 ◽  
Vol 261 ◽  
pp. 38-42
Author(s):  
Gianluigi Tiberi ◽  
Nunzia Fontana ◽  
Agostino Monorchio ◽  
Riccardo Stara ◽  
Alessandra Retico ◽  
...  
Keyword(s):  
Radio Frequency ◽  
Electromagnetic Fields ◽  
Basis Functions ◽  
Coupling Conditions

Iodine and Cymantrenyl Regioselective Exchange in the η5-IC5H4 (CO)2Fe-η1,η5-C5H4Mn(CO)3 Complex under Cross-Coupling Conditions.

ChemInform ◽  
2003 ◽  
Vol 34 (35) ◽  
Author(s):  
T. Yu. Orlova ◽  
Yu. S. Nekrasov ◽  
P. V. Petrovskii ◽  
M. G. Ezernitskaya
Keyword(s):  
Cross Coupling ◽  
Coupling Conditions

A study of coupling conditions in sub-threshold fission of 237Np by means of gamma-ray spectra

1969 ◽  
Vol 30 (9) ◽  
pp. 624-625 ◽  
Author(s):  
H. Weigmann ◽  
G. Rohr ◽  
J. Winter
Keyword(s):  
Gamma Ray ◽  
Coupling Conditions

Convenient, Large-Scale Synthesis of (S)-TRIP Using Suzuki Cross-Coupling Conditions

2022 ◽  
Author(s):  
Ramesh Mamidala ◽  
Chandrasekhar Kommuri ◽  
Justin Paulose ◽  
Hema Aswath ◽  
Lokesh Pawar ◽  
...  
Keyword(s):  
Large Scale ◽  
Cross Coupling ◽  
Coupling Conditions ◽  
Large Scale Synthesis

Revolveneynes: Novel eneyneparacyclophanes by sequential palladium coupling

1994 ◽  
Vol 35 (27) ◽  
pp. 4711-4714 ◽  
Author(s):  
Miguel A. Romero ◽  
Alex G. Fallis
Keyword(s):  
Palladium Coupling
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