scholarly journals Inexpensive Millimeter-Wave Communication Channel Using Glow Discharge Detector and Satellite Dish Antenna

Electronics ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 677
Author(s):  
Lidor Kahana ◽  
Daniel Rozban ◽  
Moshe Gihasi ◽  
Amir Abramovich ◽  
Yitzhak Yitzhaky ◽  
...  
Keyword(s):  
Glow Discharge ◽  
Millimeter Wave ◽  
Low Cost ◽  
Radiation Detector ◽  
Text Message ◽  
Communication Link ◽  
Temperature Plasma ◽  
Plasma Device ◽  
Point To Point ◽  
Satellite Dish

A full proof of concept for low-cost millimeter wave (MMW) communication link is demonstrated in this study. The suggested MMW channel is based on a very inexpensive commercially available off-axis dish antenna usually used for TV satellites, two Arduino Uno micro controller boards, and glow discharge detectors (GDD). The GDD is a robust and inexpensive room-temperature plasma device which was found to be a sensitive MMW radiation detector. The Arduino micro controllers are used to encode a text message into serial bits and also decode it. Those serial bits were used to modulate the MMW radiation in On-Off keying. The detection of MMW radiation was performed using a simple and inexpensive GDD. The suggested MMW channel can be used as point to point backhaul wireless communication for the 5th generation of cellular communication.

Low-Cost Millimeter-Wave Antenna with Simultaneous Sum and Difference Patterns for 5G Point-to-Point Communications

2018 ◽  
Vol 56 (7) ◽  
pp. 28-34 ◽  
Author(s):  
Adrian Tamayo-Dominguez ◽  
Jose-Manuel Fernandez-Gonzalez ◽  
Manuel Sierra Castaner
Keyword(s):  
Millimeter Wave ◽  
Low Cost ◽  
Wave Antenna ◽  
Millimeter Wave Antenna ◽  
Point To Point

A low-cost millimeter-wave glow-discharge detector

1972 ◽  
Vol 60 (6) ◽  
pp. 759-760 ◽  
Author(s):  
N.H. Farhat ◽  
N.S. Kopeika
Keyword(s):  
Glow Discharge ◽  
Millimeter Wave ◽  
Low Cost ◽  
Glow Discharge Detector

Text Messaging as a Mental Health Treatment Intervention: A Corpus-Based Study

2019 ◽  
Author(s):  
Megan Partch ◽  
Cass Dykeman
Keyword(s):  
Mental Health ◽  
Mental Health Treatment ◽  
Text Messaging ◽  
Low Cost ◽  
Statistical Significance ◽  
Text Message ◽  
Treatment Session ◽  
Text Messages ◽  
Health Treatment ◽  
Emotional Tone

Mental health treatment providers seek high-impact and low-cost means of engaging clients in care. As such, text messaging is becoming more frequently utilized as a means of communication between provider and client. Research demonstrates that text message interventions increase treatment session attendance, decrease symptomology, and improve overall functioning. However, research is lacking related to the linguistic make up of provider communications. Text messages were collected from previously published articles related to the treatment of mental health disorders. A corpus of 39 mental health treatment text message interventions was composed totaling 286 words. Using Linguistic Inquiry and Word Count (LIWC) software, messages were analyzed for prevalence of terminology thought to enhance client engagement. Clout, demonstrating the writer’s confidence and expertise, and positive Emotional Tone were found to be at a high level within the corpus. Results demonstrated statistical significance for five linguistic variables. When compared with national blog norms derived from Twitter, Clout, Emotional Tone, and use of Biological terminology were found to be at higher rates than expected. Authenticity and Informal terminology were found at significantly lesser rates.

Low Cost Point to Point Navigation System

2021 ◽  
Author(s):  
Giuseppe Spampinato ◽  
Arcangelo Bruna ◽  
Davide Giacalone ◽  
Giuseppe Messina
Keyword(s):  
Navigation System ◽  
Low Cost ◽  
Point To Point

scholarly journals Low-Temperature Plasma as an Approach for Inhibiting a Multi-Species Cariogenic Biofilm

2021 ◽  
Vol 11 (2) ◽  
pp. 570
Author(s):  
Leandro W. Figueira ◽  
Beatriz H. D. Panariello ◽  
Cristiane Y. Koga-Ito ◽  
Simone Duarte
Keyword(s):  
Low Temperature ◽  
Laser Scanning ◽  
Single Species ◽  
Laser Scanning Microscopy ◽  
Confocal Laser ◽  
Low Temperature Plasma ◽  
Temperature Plasma ◽  
Plasma Device ◽  
Negative Controls ◽  
Promising Source

This study aimed to determine how low-temperature plasma (LTP) treatment affects single- and multi-species biofilms formed by Streptococcus mutans, Streptococcus sanguinis, and Streptococcus gordonii formed on hydroxyapatite discs. LTP was produced by argon gas using the kINPen09™ (Leibniz Institute for Plasma Science and Technology, INP, Greifswald, Germany). Biofilms were treated at a 10 mm distance from the nozzle of the plasma device to the surface of the biofilm per 30 s, 60 s, and 120 s. A 0.89% saline solution and a 0.12% chlorhexidine solution were used as negative and positive controls, respectively. Argon flow at three exposure times (30 s, 60 s, and 120 s) was also used as control. Biofilm viability was analyzed by colony-forming units (CFU) recovery and confocal laser scanning microscopy. Multispecies biofilms presented a reduction in viability (log10 CFU/mL) for all plasma-treated samples when compared to both positive and negative controls (p < 0.0001). In single-species biofilms formed by either S. mutans or S. sanguinis, a significant reduction in all exposure times was observed when compared to both positive and negative controls (p < 0.0001). For single-species biofilms formed by S. gordonii, the results indicate total elimination of S. gordonii for all exposure times. Low exposure times of LTP affects single- and multi-species cariogenic biofilms, which indicates that the treatment is a promising source for the development of new protocols for the control of dental caries.

scholarly journals Review on the Millimeter-Wave Generation Techniques Based on Photon Assisted for the RoF Network System

2020 ◽  
Vol 2020 ◽  
pp. 1-14
Author(s):  
Jiangnan Xiao ◽  
Chuang Zhao ◽  
Xingxing Feng ◽  
Xu Dong ◽  
Jiangli Zuo ◽  
...  
Keyword(s):  
High Frequency ◽  
Low Cost ◽  
Electronic Devices ◽  
Low Frequency ◽  
Digital Signal ◽  
Development Trend ◽  
Wave Generation ◽  
Communication Link ◽  
Network System ◽  
High Frequency Microwave

With the development trend of wireless and broadband in the communication link and even the whole information industry, the demand of high-frequency microwave bandwidth has been increasing. The RoF network system solves the problem of spectrum congestion in low-frequency band by providing an effective technology for the distribution of high-frequency microwave signals over optical fiber links. However, the traditional mm-wave generation technique is limited by the bandwidth of electronic devices. It is difficult to generate high-frequency and low-phase noise mm-wave signals with pure electrical components. The mm-wave communication technology based on photon assisted can overcome the bandwidth bottleneck of electronic devices and provide the potential for developing the low-cost infrastructure demand of broadband mobile services. This paper will briefly explain the characteristics of the RoF network system and the advantages of high-frequency mm-wave. Then we, respectively, introduce the modulation schemes of RoF mm-wave generation based on photon assisted including directly modulated laser (DML), external modulation, and optical heterodyne. The review mainly focuses on a variety of different mm-wave generation technologies including multifrequency vector mm-wave. Furthermore, we list several approaches to realize the large capacity data transmission techniques and describe the digital signal processing (DSP) algorithm flow in the receiver. In the end, we summarize the RoF network system and look forward to the future.

scholarly journals Performance Enhancement of Inexpensive Glow Discharge Detector Operating in Up-Conversion Mode in Millimeter Wave Detection for Focal Plane Arrays

2021 ◽  
Vol 11 (20) ◽  
pp. 9564
Author(s):  
Arun Ramachandra Kurup ◽  
Daniel Rozban ◽  
Lidor Kahana ◽  
Amir Abramovich ◽  
Yitzhak Yitzhaky ◽  
...  
Keyword(s):  
Glow Discharge ◽  
Millimeter Wave ◽  
Performance Enhancement ◽  
Signal To Noise Ratio ◽  
Focal Plane Arrays ◽  
Imaging Systems ◽  
Pass Filter ◽  
Detailed Derivation ◽  
Glow Discharge Detector ◽  
Thz Sensor

Performance enhancement of a very inexpensive millimeter-wave (MMW)/terahertz (THz) sensor for MMW/THz imaging systems is experimentally demonstrated in this study. The MMW sensor is composed of a glow discharge detector (GDD) and a light-to-frequency (LTF) converter combination. The experimental results given in this study show an improvement in the performance parameters of the detector element, such as the minimum detectable signal, as well as the signal to noise ratio (SNR) and the noise equivalent power (NEP), when a NIR long-pass filter was inserted between the GDD and the LTF combination. A detailed derivation of the NEP of this unique sensor is presented in this work. Based on this derivation and the experimental measurements, the NEP value was calculated.

scholarly journals Charged projectile spectrometry using solid-state nuclear track detector of the PM-355 type

Nukleonika ◽  
2015 ◽  
Vol 60 (3) ◽  
pp. 591-596 ◽  
Author(s):  
Aneta Malinowska ◽  
Marian Jaskóła ◽  
Andrzej Korman ◽  
Adam Szydłowski ◽  
Karol Malinowski ◽  
...  
Keyword(s):  
Solid State ◽  
Detection Efficiency ◽  
Radiation Detector ◽  
High Energy ◽  
High Energy Resolution ◽  
Projectile Energy ◽  
Scanning System ◽  
Nuclear Track Detector ◽  
Temperature Plasma ◽  
Wide Range

Abstract To use effectively any radiation detector in high-temperature plasma experiments, it must have a lot of benefits and fulfill a number of requirements. The most important are: a high energy resolution, linearity over a wide range of recorded particle energy, high detection efficiency for these particles, a long lifetime and resistance to harsh conditions existing in plasma experiments and so on. Solid-state nuclear track detectors have been used in our laboratory in plasma experiments for many years, but recently we have made an attempt to use these detectors in spectroscopic measurements performed on some plasma facilities. This paper presents a method that we used to elaborate etched track diameters to evaluate the incident projectile energy magnitude. The method is based on the data obtained from a semiautomatic track scanning system that selects tracks according to two parameters, track diameter and its mean gray level.

Low-cost millimeter-wave radio-frequency sensors: New applications enabled by developments in low cost chipsets

2017 ◽  
Author(s):  
Chris Roff ◽  
James R. Henderson ◽  
Damien Clarke ◽  
Marcus C. Walden ◽  
Steve Fitz
Keyword(s):  
Radio Frequency ◽  
Millimeter Wave ◽  
Low Cost ◽  
Wave Radio ◽  
New Applications
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