scholarly journals A “State of the Art” environmental monitoring and sensing network for the Nile River in Egypt

2008 ◽  
Author(s):  
S. Abdel-Gawad ◽  
H. Khan ◽  
A. A. Khan
Author(s):  
Jian Cao ◽  
Zhong Wang ◽  
Neil Krishnan ◽  
Anthony Michael Swanson

In the last ten years, miniaturization technologies have revolutionized product design and have lead to many innovative applications in the automotive industry, healthcare, environmental monitoring, industrial processing, energy consumption, defense, etc. Here, the current state-of-the-art in mesoforming (forming of metals in the scale of 0.1 mm to several millimeters) is reviewed, followed by our preliminary investigation of one mesoforming example.


2014 ◽  
Vol 16 (3) ◽  
pp. 369-373 ◽  
Author(s):  
Graham A. Mills ◽  
Anthony Gravell ◽  
Branislav Vrana ◽  
Christopher Harman ◽  
Hélène Budzinski ◽  
...  

State-of-the-art of passive sampling techniques for environmental monitoring; future applications and directions for research.


Sensors ◽  
2019 ◽  
Vol 19 (17) ◽  
pp. 3648 ◽  
Author(s):  
Hasan Hayat ◽  
Thomas Griffiths ◽  
Desmond Brennan ◽  
Richard P. Lewis ◽  
Michael Barclay ◽  
...  

Building energy consumption accounts for 30%–45% of the global energy demand. With an ever-increasing world population, it has now become essential to minimize the energy consumption for the future of the environment. One of the most crucial aspects in this regard is the utilization of sensing and environmental monitoring technologies in buildings as these technologies provide stakeholders, such as owners, designers, managers, and occupants, with important information regarding the energy performance, safety and cost-effectiveness of the building. With the global sensors market value predicted to exceed $190 billion by 2021 and the number of sensors deployed worldwide forecasted to reach the ‘1 Trillion’ mark by 2025, a state-of-the-art review of various commercially-viable sensor devices and the wide range of communication technologies that complement them is highly desirable. This paper provides an insight into various sensing and environmental monitoring technologies commonly deployed in buildings by surveying different sensor technologies, wired and wireless communication technologies, and the key selection parameters and strategies for optimal sensor placement. In addition, we review the key characteristics and limitations of the most prominent battery technologies in use today, different energy harvesting sources and commercial off-the-shelf solutions, and various challenges and future perspectives associated with the application of sensing and environmental monitoring technologies within buildings.


2016 ◽  
Vol 23 (4) ◽  
pp. 495-512 ◽  
Author(s):  
Bogdan Dziadak ◽  
Łukasz Makowski ◽  
Andrzej Michalski

Abstract Wireless Sensor Networks (WSNs) have existed for many years and had assimilated many interesting innovations. Advances in electronics, radio transceivers, processes of IC manufacturing and development of algorithms for operation of such networks now enable creating energy-efficient devices that provide practical levels of performance and a sufficient number of features. Environmental monitoring is one of the areas in which WSNs can be successfully used. At the same time this is a field where devices must either bring their own power reservoir, such as a battery, or scavenge energy locally from some natural phenomena. Improving the efficiency of energy harvesting methods reduces complexity of WSN structures. This survey is based on practical examples from the real world and provides an overview of state-of-the-art methods and techniques that are used to create energyefficient WSNs with energy harvesting.


2016 ◽  
Vol 120 ◽  
pp. 85-102 ◽  
Author(s):  
Muhammad Waseem Ahmad ◽  
Monjur Mourshed ◽  
David Mundow ◽  
Mario Sisinni ◽  
Yacine Rezgui

Author(s):  
T. A. Welton

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.


Author(s):  
Carl E. Henderson

Over the past few years it has become apparent in our multi-user facility that the computer system and software supplied in 1985 with our CAMECA CAMEBAX-MICRO electron microprobe analyzer has the greatest potential for improvement and updating of any component of the instrument. While the standard CAMECA software running on a DEC PDP-11/23+ computer under the RSX-11M operating system can perform almost any task required of the instrument, the commands are not always intuitive and can be difficult to remember for the casual user (of which our laboratory has many). Given the widespread and growing use of other microcomputers (such as PC’s and Macintoshes) by users of the microprobe, the PDP has become the “oddball” and has also fallen behind the state-of-the-art in terms of processing speed and disk storage capabilities. Upgrade paths within products available from DEC are considered to be too expensive for the benefits received. After using a Macintosh for other tasks in the laboratory, such as instrument use and billing records, word processing, and graphics display, its unique and “friendly” user interface suggested an easier-to-use system for computer control of the electron microprobe automation. Specifically a Macintosh IIx was chosen for its capacity for third-party add-on cards used in instrument control.


Sign in / Sign up

Export Citation Format

Share Document