Materials used by industry for the production of piezoelectric transducers. The state of the art of research work performed in the field of PZT ceramics and ferroelectric polymers

1984 ◽  
Vol 75 (S1) ◽  
pp. S15-S15
Author(s):  
Lucien Eyraud ◽  
Paul Eyraud ◽  
François Bauer
Keyword(s):  
State Of The Art ◽  
Research Work ◽  
The State ◽  
Piezoelectric Transducers ◽  
Ferroelectric Polymers ◽  
Pzt Ceramics ◽  
Materials Used

Traffic Analysis Using IoT for Improving Secured Communication

2021 ◽  
pp. 106-116
Author(s):  
Lakshman Narayana Vejendla ◽  
Alapati Naresh ◽  
Peda Gopi Arepalli
Keyword(s):  
Internet Of Things ◽  
Routing Protocols ◽  
State Of The Art ◽  
Research Work ◽  
System Security ◽  
Traffic Analysis ◽  
The State ◽  
Software Sensors ◽  
Secured Communication

Internet of things can be simply referred to as internet of entirety, which is the network of things enclosed with software, sensors, electronics that allows them to gather and transmit the data. Because of the various and progressively malevolent assaults on PC systems and frameworks, current security apparatuses are frequently insufficient to determine the issues identified with unlawful clients, unwavering quality, and to give vigorous system security. Late research has demonstrated that in spite of the fact that system security has built up, a significant worry about an expansion in illicit interruptions is as yet happening. Addressing security on every occasion or in every place is a really important and sensitive matter for many users, businesses, governments, and enterprises. In this research work, the authors propose a secret IoT architecture for routing in a network. It aims to locate the malicious users in an IoT routing protocols. The proposed mechanism is compared with the state-of-the-art work and compared results show the proposed work performs well.

scholarly journals On-Chip Integrated Distributed Amplifier and Antenna Systems in SiGe BiCMOS for Transceivers with Ultra-Large Bandwidth

Frequenz ◽  
2017 ◽  
Vol 71 (9-10) ◽  
pp. 473-484
Author(s):  
Paolo Valerio Testa ◽  
Bernhard Klein ◽  
Ronny Hahnel ◽  
Dirk Plettemeier ◽  
Corrado Carta ◽  
...  
Keyword(s):  
State Of The Art ◽  
Research Work ◽  
The State ◽  
Integrated System ◽  
Ultra Wideband ◽  
Single Chip ◽  
System Architectures ◽  
Distributed Amplifiers ◽  
Distributed Amplifier ◽  
Bicmos Technology

Abstract This paper presents an overview of the research work currently being performed within the frame of project DAAB and its successor DAAB-TX towards the integration of ultra-wideband transceivers operating at mm-wave frequencies and capable of data rates up to 100 Gbits $^{-1}$. Two basic system architectures are being considered: integrating a broadband antenna with a distributed amplifier and integrate antennas centered at adjacent frequencies with broadband active combiners or dividers. The paper discusses in detail the design of such systems and their components, from the distributed amplifiers and combiners, to the broadband silicon antennas and their single-chip integration. All components are designed for fabrication in a commercially available SiGe:C BiCMOS technology. The presented results represent the state of the art in their respective areas: 170 GHz is the highest reported bandwidth for distributed amplifiers integrated in Silicon; 89 GHz is the widest reported bandwidth for integrated-system antennas; the simulated performance of the two antenna integrated receiver spans 105 GHz centered at 148GHz, which would improve the state of the art by a factor in excess of 4 even against III-V implementations, if confirmed by measurements.

PZT Sensors and their Application in Structural Health Monitoring

2011 ◽  
Vol 128-129 ◽  
pp. 669-675 ◽  
Author(s):  
Xuan Sun
Keyword(s):  
Structural Health Monitoring ◽  
Health Monitoring ◽  
Lamb Wave ◽  
State Of The Art ◽  
Research Work ◽  
Mechanical Systems ◽  
The State ◽  
Theoretical Studies ◽  
Engineering Systems ◽  
Experimental And Theoretical Studies

This paper provides the state of the art in methods to detect damage in structural and mechanical systems by PZT sensors, which include impedance methods and lamb wave propagations. The basic idea behind these technologies is to use impedance of PZT embedded on surface or lamb wave propagations. A brief overview of research work on experimental and theoretical studies on various structures and mechanical systems is descried. Past, current and applications of this technology in actual engineering systems are summarized. Finally, desirable developments for further advancement of this field are discussed.

scholarly journals Protein active site prediction for early drug discovery and designing

2021 ◽  
Vol 13 (1) ◽  
pp. 98-105
Author(s):  
Aqsa Yousaf ◽  
Tahira Shehzadi ◽  
Aqeel Farooq ◽  
Komal Ilyas
Keyword(s):  
Active Sites ◽  
State Of The Art ◽  
Research Work ◽  
Living Cells ◽  
The State ◽  
Feature Vectors ◽  
Protein Active Sites ◽  
A Cell ◽  
Scoring Matrix ◽  
Living Organisms

Abstract Adenosine triphosphate (ATP) is an energy compound present in living organisms and is required by living cells for performing operations such as replication, molecules transportation, chemical synthesis, etc. ATP connects with living cells through specialized sites called ATP-sites. ATP-sites are present in various proteins of a living cell. The life span of a cell can be controlled by controlling ATP compounds and without the provision of energy to ATP compounds, cells cannot survive. Countless diseases treatment (such as cancer, diabetes) can be possible once protein active sites are predicted. Considering the need for an algorithm that predicts ATP-sites with higher accuracy and effectiveness, this research work predicts protein ATP sites in a very novel way. Till now Position-specific scoring matrix (PSSM) along with many physicochemical properties have been used as features with deep neural networks in order to create a model that predicts the ATP-sites. To overcome this problem of complex computation, this exertion proposes k-mer feature vectors with simple machine learning (ML) models to attain the same or even better performance with less computation required. Using 2-mer as feature vectors, this research work trained and tested five different models including KNN, Conv1D, XGBoost, SVM and Random Forest. SVM gave the best performance on k-mer features. The accuracy of the created model is 96%, MCC 90% and ROC-AUC is 99%, which are the same or even better in some aspects than the state-of-the-art results. The state-of-the-art results have an accuracy of 97%, MCC 78% and ROC-AUC is 92%. One of the benefits of the created model is that it is much simpler and more accurate.

Polymeric Integrated Optics

1991 ◽  
Vol 244 ◽  
Author(s):  
Kurt H. Lösch ◽  
Peter Kersten ◽  
Wiltraud Wischmann
Keyword(s):  
Data Processing ◽  
Integrated Optics ◽  
State Of The Art ◽  
Research Work ◽  
The State ◽  
Photonic Circuits ◽  
Practical Applications ◽  
Channel Waveguides

ABSTRACTSince the realization of first polymer channel waveguides in the early 70ths and the market introduction of polymer fibres research work is aiming to increase the integration level of photonic circuits. This paper reports the state of the art in passive and active polymeric integrated optics in view of the requirements for practical applications in telecom and data processing systems.

scholarly journals Application of super absorbent polymers (SAP) in concrete construction—update of RILEM state-of-the-art report

2021 ◽  
Vol 54 (2) ◽  
Author(s):  
Viktor Mechtcherine ◽  
Mateusz Wyrzykowski ◽  
Christof Schröfl ◽  
Didier Snoeck ◽  
Pietro Lura ◽  
...  
Keyword(s):  
State Of The Art ◽  
Research Work ◽  
Major Product ◽  
The State ◽  
Chemical Admixtures ◽  
Cement Based Materials ◽  
International Experts ◽  
Important Progress ◽  
Made In ◽  
Working Mechanisms

AbstractSuperabsorbent polymers (SAP) are a new, promising class of chemical admixtures which offer new possibilities in respect of influencing the properties of cement-based materials in the fresh, hardening, and hardened states. Much research work has been done in the last two decades to set the stage for introducing this truly multipurpose agent into the practice of construction. In particular, three RILEM Technical Committees: 196-ICC, 225-SAP and 260-RSC contributed considerably to the related progress by coordinating and combining the efforts of international experts in the field. The major product of the RILEM TC 225-SAP work was the State-of-the-Art Report published in 2012. This comprehensive document covered all topics relevant to the application of SAP as a concrete admixture. Since then further important progress has been made in understanding the working mechanisms of SAP in concrete and the effects of SAP-addition on various concrete properties. The article at hand presents an update on the state-of-the-art and is the concluding document delivered by the RILEM TC 260-RSC.

Practical Picture Processing

1974 ◽  
Vol 32 ◽  
pp. 338-339
Author(s):  
T. A. Welton
Keyword(s):  
Radiation Damage ◽  
Coherence Length ◽  
Spatial Information ◽  
State Of The Art ◽  
Coherent Radiation ◽  
The State ◽  
Energy Spread ◽  
Electron Micrograph ◽  
Picture Processing ◽  
Molecular Skeleton

Various authors have emphasized the spatial information resident in an electron micrograph taken with adequately coherent radiation. In view of the completion of at least one such instrument, this opportunity is taken to summarize the state of the art of processing such micrographs. We use the usual symbols for the aberration coefficients, and supplement these with £ and 6 for the transverse coherence length and the fractional energy spread respectively. He also assume a weak, biologically interesting sample, with principal interest lying in the molecular skeleton remaining after obvious hydrogen loss and other radiation damage has occurred.

Hypothesis-Evidence Coordination: The State of the Art

2003 ◽  
Vol 48 (6) ◽  
pp. 826-829 ◽  
Author(s):  
Eric Amsel
Keyword(s):  
State Of The Art ◽  
The State
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