scholarly journals Monitoring Variability of the Sky

2001 ◽  
Vol 183 ◽  
pp. 45-51
Author(s):  
Bohdan Paczyński
Keyword(s):  
Real Time ◽  
Complete System ◽  
Low Cost ◽  
Public Outreach ◽  
Process Data ◽  
Current Technology ◽  
Optical Instruments ◽  
On Line ◽  
Robotic Instruments ◽  
Near Future

AbstractVariability in the sky has been known for centuries, even millennia, but our knowledge of it is very incomplete even at the bright end. Current technology makes it possible to built small, robotic optical instruments, to record images and to process data in real time, and to archive them on-line, all at a low cost. In addition to obtaining complete catalogs of all kinds of variable objects, spectacular discoveries can be made, like the optical flash associated with GRB 990123 and a planetary transit in front of HD 209458. While prototypes of parts of such robotic instruments have been in operation for several years, it is not possible to purchase a complete system at this time. I expect (hope) that complete systems will become available ‘off the shelf’ in the near future, as monitoring bright sky for variability has a great scientific, educational and public outreach potential.

On-Line Remaining Life Assessment of Hot Reheat Pipe Bend

2005 ◽  
Author(s):  
B. K. Dutta ◽  
S. Guin ◽  
M. K. Samal
Keyword(s):  
Stress Analysis ◽  
Real Time ◽  
Control Valve ◽  
Life Assessment ◽  
Fe Model ◽  
Remaining Life ◽  
Process Data ◽  
Pipe Bend ◽  
Constant Weight ◽  
On Line

An ageing in-service Hot Reheat (HRH) pipe bend before Intermediate Pressure (IP) Stop/ Control Valve of a Utility was identified for real-time creep-fatigue damage assessment. A data acquisition system has been installed to record thermal hydraulic parameters, such as pressure, temperature and flow on real time basis. The HRH piping including low pressure bypass line incorporating various supports such as directional restraints, constant weight hangers and spring hangers, was modeled using straight and bend elements. Static stress analysis was performed to find out the forces and moments at either ends of the pipe-bend for sustained and expansion loadings using piping analysis program CAESAR-II. A detailed 3-D Finite Element Model of the pipe bend was also developed using 20-noded brick elements. The 3-D FE model along with material parameters and loading are used by code BOSSES for on-line monitoring of damage. The nodal temperatures (obtained by temperature transient analysis), recorded internal pressure, associated piping loads, etc. are then used in a stress analysis module to calculate stresses at different gauss points of the pipe bend. The temperatures and stresses at different time are then used to compute fatigue and creep damage and to assess growth of different postulated cracks at various locations of pipe bend, as well as remaining life. All the information are upgraded and restart files are saved for successive computation. The real-time process data of the pipe bend are made available to the Researcher’s Desk through Client-Server Network.

scholarly journals Use of Electronic Noses in Seawater Quality Monitoring: a Systematic Review

2018 ◽  
Author(s):  
Alessandro Tonacci ◽  
Francesco Sansone ◽  
Raffaele Conte ◽  
Claudio Domenici
Keyword(s):  
Systematic Review ◽  
Real Time ◽  
Low Cost ◽  
Positive Contribution ◽  
Specific Topic ◽  
Marine Monitoring ◽  
Electronic Noses ◽  
Seawater Quality ◽  
Near Future ◽  
Marine Wildlife

Electronic Nose (eNose) systems are particularly appreciated for their portability, usability, relative low cost and real-time or near real-time response. Their application finds space in several domains, including environmental monitoring. Within this field, marine monitoring is of particular scientific relevance due to the fragility of this specific environment, daily threatened by human activities that can potentially bring to catastrophic and irreversible consequences on marine wildlife. Under such considerations, a systematic review, complying with the PRISMA guidelines, was conducted covering the period up to October 15, 2018, in PubMed, ScienceDirect and Google Scholar. Despite the relatively low number of articles published on this specific topic and the heterogeneity of the technological approaches employed, the results obtained by the various groups highlight the positive contribution eNose has given and can provide in near future for the monitoring and safeguarding of this delicate environment.

An Online Visual Inspection System for Oil-Seal Dimension

2011 ◽  
Vol 130-134 ◽  
pp. 3548-3552
Author(s):  
Zhang Liang Wu ◽  
Chang Ku Sun ◽  
Jie Liu
Keyword(s):  
Image Processing ◽  
Real Time ◽  
Low Cost ◽  
Measuring System ◽  
Inspection System ◽  
Image Processing Algorithm ◽  
Vision Inspection ◽  
Computer Image Processing ◽  
On Line ◽  
Machine Vision Inspection

Adoption of machine vision inspection and computer image processing technology, an oil-seal dimension measuring system was developed to meet the requirement of online production and real time inspection. The makeup and principle of the system were introduced, as well as its working process and design requirements were described on detailed. The technique of quadratic filtering for image preprocessing combined with the principle of three points determining a circle, point Hough transform and the least squares was employed for image processing algorithm, and high precision sub-pixel edge detection was achieved. The measuring results of experiments demonstrated that the inspection goal on 100 percents of products could be realized successfully, and with many advantages such as non-contact, on-line, real time, appropriate precision and low cost, the system can be applied widely in other production fields.

scholarly journals The way of work and construction of a modern water quality sensor

Connectivity ◽  
2021 ◽  
Vol 149 (1) ◽  
Author(s):  
K.G. Ballyyev ◽  
◽  
M. S. Moshenchenko ◽  
B. Yu. Zhurakovsʹkyy
Keyword(s):  
Water Quality ◽  
Real Time ◽  
Smart Cities ◽  
Low Cost ◽  
Water Quality Monitoring ◽  
Process Data ◽  
Additional Material ◽  
Related Data ◽  
Biological Part ◽  
Analytical Biotechnology

Real-time monitoring and development of IoT-based real-time water quality monitoring solution for smart cities will be established through telecommunication microwave networks through real-time communication. We will also detail the opportunities and positive impacts, as well as the challenges and the need to fully integrate such solutions in cities. This solution enables thorough analysis of data in real time. Water related data such as quality, pressure and temperature can be manipulated in detail and visually to empower water utilities. Sensors are structure of fully automated systems that process data at low cost, high accuracy, and at the output we receive information that is easy to structure. These sensors are absolutely accurate and easy to use, which is what we need in a smart automated city. Biosensory represents autonomous integral analytical attachments, so that they will forget a little or a reminder of an analysis from the background of a biological developmental element, which is known in direct contact from the form. Biosensors are perceived from chemical sensors in a deprivation of time, so that the concentration of singing speech appears in them for the additional material of biological nature. The development of biosensors in one of the most promising directions of research in the field of analytical biotechnology. For the IUPAC classification, simply the biosensor can be used as an analytical sensor (attachment), which can be stored from biological material, immobilized or conjugated with a re-converting (transducer). The sensor-converts the detection that allows to carry out a complete assessment of the signals, which are detected at the biological part (bioreceptors). Prior to biosensors, there are various analytical sensors: enzyme electrodes, DNA probes, immunosensors, enzyme thermistories, microbial sensors.

scholarly journals Use of Electronic Noses in Seawater Quality Monitoring: A Systematic Review

Biosensors ◽  
2018 ◽  
Vol 8 (4) ◽  
pp. 115 ◽  
Author(s):  
Alessandro Tonacci ◽  
Francesco Sansone ◽  
Raffaele Conte ◽  
Claudio Domenici
Keyword(s):  
Systematic Review ◽  
Real Time ◽  
Low Cost ◽  
Positive Contribution ◽  
Specific Topic ◽  
Marine Monitoring ◽  
Electronic Noses ◽  
Seawater Quality ◽  
Near Future ◽  
Marine Wildlife

Electronic nose (eNose) systems are particularly appreciated for their portability, usability, relative low cost, and real-time or near real-time response. Their application finds space in several domains, including environmental monitoring. Within this field, marine monitoring is of particular scientific relevance due to the fragility of this specific environment, daily threatened by human activities that can potentially bring to catastrophic and irreversible consequences on marine wildlife. Under such considerations, a systematic review, complying with the PRISMA guidelines, was conducted covering the period up to 15 October 2018, in PubMed, ScienceDirect, and Google Scholar. Despite the relatively low number of articles published on this specific topic and the heterogeneity of the technological approaches employed, the results obtained by the various groups highlight the positive contribution eNose has given and can provide in near future for the monitoring and safeguarding of this delicate environment.

Capacitance Automatic Measurement Method of the Thickness of Liquid Film on Plat Form

2008 ◽  
Vol 381-382 ◽  
pp. 157-160
Author(s):  
Shu Xing Xu ◽  
B. Wang ◽  
Yi Zhong Zheng
Keyword(s):  
Real Time ◽  
Virtual Instrument ◽  
Measurement Method ◽  
Low Cost ◽  
Measurement Theory ◽  
Water Film ◽  
Automatic Measurement ◽  
Time Data ◽  
Line Measurement ◽  
On Line

The thickness of water film is an important parameter in the field of chemical industry. Water film is formed by the flowing water, which flows through a narrow channel. So it is difficult to use contact gauges to measure the water film because it’s flowing so fast that if it is touched, the thickness will be changed. A low-cost and high precision non-contact measurement method—capacitive sensor is used as the sensor of the thickness of water film, virtual instrument is used to analyze the measurement state. In contrast to the conventional stand-alone instruments, a PC based virtual instrument for the measurement of water film is proposed in this paper. Based on on-line measurement theory, real time voltages should be collected to PC. These voltages will be computed by formulas in Labview and the real time data of thickness will be plotted on the screen. If bad signal got, it will give error alarm. The method of the measurement of water film can save a lot of fees of research and applications, and be easy to apply in other measurement and control fields. The basic principle and working process of capacitive micrometer, denoise method, the method of capacitive calibration, virtual instrument data acquisition system and on-line measurement of water film, will be further discussed in this paper.

scholarly journals Rancang Bangun Sistem Keamanan dan Pemantau Tamu pada Pintu Rumah Pintar Berbasis Raspberry Pi dan Chat Bot Telegram

2019 ◽  
Vol 23 (2) ◽  
pp. 121-128
Author(s):  
Zaenab Muslimin ◽  
Muhammad Arief Wicaksono ◽  
Muhammad Fandly Fadlurachman ◽  
Ilham Ramli
Keyword(s):  
Remote Control ◽  
Real Time ◽  
Security System ◽  
Maximum Sensitivity ◽  
Maximum Distance ◽  
Raspberry Pi ◽  
Process Data ◽  
Security Systems ◽  
Current Technology ◽  
Chat Bot

Security Systems and Guest Monitoring Prototypes on smart doors Based on Raspberry Pi and Telegram Chat Bot. Current technology is developing so rapidly that it can be used to help people carry out daily tasks at home by designing devices that can be controlled remotely (remote control) so as to create a dream home with increased comfort and safety of residents. This study aims to design a tool for monitoring guests equipped with a security system using the Raspberry Pi microprocessor to process data to be sent to Telegram Chat Bot. Data sent to the Chat Bot Telegram will later be accessed by a smartphone in the form of a guest image taken by a raspberry pi camera. This tool has two modes namely the smart mode that is used to take pictures of guests when a guest presses the bell button and the safe mode is used to take pictures of people who are at the door automatically using a PIR sensor. The results showed that the PIR sensor with maximum sensitivity can detect objects well within a maximum distance of 5 m, the Raspberry Pi camera can take pictures with good quality up to 11m distance and testing on the Chat Bot runs well, all commands have been tested and provide information in the form reciprocal chatter. This prototype allows homeowners to see guests or people at the door through a smartphone in real time.

Recent developments in automated Transmission Electron MI

1989 ◽  
Vol 47 ◽  
pp. 46-47
Author(s):  
W.J. de Ruijter ◽  
P. Rez ◽  
David J. Smith
Keyword(s):  
Image Analysis ◽  
Computer Image ◽  
Lens Design ◽  
Computer Image Analysis ◽  
Transmission Electron ◽  
Resolution Electron ◽  
Recent Developments ◽  
On Line ◽  
Routine Procedures ◽  
Near Future

There is growing interest in the on-line use of computers in high-resolution electron n which should reduce the demands on highly skilled operators and thereby extend the r of the technique. An on-line computer could obviously perform routine procedures hand, or else facilitate automation of various restoration, reconstruction and enhan These techniques are slow and cumbersome at present because of the need for cai micrographs and off-line processing. In low resolution microscopy (most biologic; primary incentive for automation and computer image analysis is to create a instrument, with standard programmed procedures. In HREM (materials researc computer image analysis should lead to better utilization of the microscope. Instru (improved lens design and higher accelerating voltages) have improved the interpretab the level of atomic dimensions (approximately 1.6 Å) and instrumental resolutior should become feasible in the near future.

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