Scanning Electron Microscopy at a Distance: A Nuts-and-Bolts Discussion

1999 ◽  
Vol 5 (S2) ◽  
pp. 528-529 ◽  
Author(s):  
S. B. Barlow

Not everyone can afford to own and operate a scanning electron microscope. Everyone can, however, access images and instruments in a variety of ways, depending on the objective. Remote access capability is a result of recent developments in desktop computers, software, and the World Wide Web. Some of these developments and some suggestions for future resource development will be reviewed here.With the arrival of commercially available, digitally controlled SEMs in the 1980s, it became possible to control microscope operation with a desktop computer and the appropriate software. By connecting a desktop computer to the microscope via the Internet or dedicated data lines such as ATMs, remote control of microscopes became a reality. Although analog microscopes are not as readily controllable over the Internet, their video data stream is easily captured, digitized, and dispatched to remote observers using low-cost consumer video conferencing programs. These approaches enable users at one location to observe their samples in a microscope located elsewhere. However, transfer rates over the Internet fluctuate wildly depending on network traffic, at times making remote access or control almost impossible. Dedicated data lines ensure a relatively stable transfer rate, but at a significantly higher cost.

2000 ◽  
Vol 6 (S2) ◽  
pp. 1160-1161 ◽  
Author(s):  
C.S. Potter ◽  
B. Carragher ◽  
L. Carroll ◽  
C. Conway ◽  
B. Grosser ◽  
...  

Bugscope is a second generation educational project in the World Wide Laboratory that provides web browser based control of scientific imaging instrumentation using the Internet. We had previously demonstrated web based remote access to sophisticated scientific imaging systems several years ago in the Chickscope project. The primary goal of the Bugscope project is to demonstrate that relatively low cost, sustainable access to an environmental scanning electron microscope (ESEM) can be made available to K-12 classrooms.Methods: To participate in the project, a classroom submits a web based application that describes how they plan to use the microscope. If the application is accepted, a one hour session on the ESEM is scheduled and the classroom mails in their chosen specimen. During their access time, classrooms use a standard web browser over the Internet to control and acquire images from the ESEM (Philips/FEI XL-30FEG).


2020 ◽  
Vol 6 (5) ◽  
pp. 25-32
Author(s):  
Anshita Dhoot ◽  

The growing era of technology through the internet, Internet of Things (i.e. IoT) has a powerful and strong industrial system that provides an opportunity to grow and applications to use ubiquitously. Its applications use sensor, wireless, mobile and RFID technology devices. In recent years IoT applications are enhancing to being deployed as well as developed. The IoT promises to have a great future era of the Internet uses that involves machine-to-machine communication. It helps to enable the sensor network as well as technologies, even IoT got involved in our day-to-day routine such that it supports to control and to monitor a human being's mundane by providing mobile access, remotely. Undoubtedly, remote access is the incredible feature of the IoT which has been given to this world. The main objective of IoT is to provide remotely accessible at low-cost that too by often visits through electronic devices. This paper presents the maximum possibilities of challenges, applications, security issues and techniques of IoT.


Author(s):  
Payam Barnaghi ◽  
Wei Wang ◽  
Cory Henson ◽  
Kerry Taylor

The Internet of Things (IoT) has recently received considerable interest from both academia and industry that are working on technologies to develop the future Internet. It is a joint and complex discipline that requires synergetic efforts from several communities such as telecommunication industry, device manufacturers, semantic Web, and informatics and engineering. Much of the IoT initiative is supported by the capabilities of manufacturing low-cost and energy-efficient hardware for devices with communication capacities, the maturity of wireless sensor network technologies, and the interests in integrating the physical and cyber worlds. However, the heterogeneity of the “Things” makes interoperability among them a challenging problem, which prevents generic solutions from being adopted on a global scale. Furthermore, the volume, velocity and volatility of the IoT data impose significant challenges to existing information systems. Semantic technologies based on machine-interpretable representation formalism have shown promise for describing objects, sharing and integrating information, and inferring new knowledge together with other intelligent processing techniques. However, the dynamic and resource-constrained nature of the IoT requires special design considerations to be taken into account to effectively apply the semantic technologies on the real world data. In this article the authors review some of the recent developments on applying the semantic technologies to IoT.


Author(s):  
Paul Coulton ◽  
Dan Burnett ◽  
Adrian Gradinar ◽  
David Gullick ◽  
Emma Murphy

Whilst no consensus yet exists on how the Internet of Things will be realised, a global infrastructure of networked physical objects that are readable, recognizable, locatable, addressable and controllable is undoubtedly a compelling vision. Although many implementations of the Internet of Things have presented these objects in a largely ambient sensing role, or providing some form of remote access/control, in this paper we consider the emerging convergence between games and the Internet of Things. This can be seen in a growing number of games that use objects as physical game pieces to enhance the players’ interaction with virtual games. These hybrid physical/digital objects present game designers with number of interesting challenges as they i) blur the boundaries between toys and games; ii) provide opportunities for freeform physical play outside the virtual game; and iii) create new requirements for interaction design, in that they utilise design techniques from both product design and computer interface design. Whilst in the past the manufacturing costs of such game objects would preclude their use within games from small independent games developers, the advent of low cost 3D printing and open software and hardware platforms, which are the enablers of the Internet of Things, means this is no longer the case. However, in order to maximise this opportunity game designers will need to develop new approaches to the design of their games and in this paper we highlight the design sensibilities required if they are to combine the digital and physical affordances within the design of such objects to produce good player experiences.


2021 ◽  
Vol 38 (2) ◽  
pp. 67-74
Author(s):  
Sharon Richardson

The mass digitisation of data arguably began in the late 1980s with the mainstream adoption of new low-cost desktop computers in the workplace and visions of a paperless office. The term reflected a focus on the digitisation of existing processes. Such comparisons continued with the arrival of the Internet and worldwide web in the mid-1990s, with visions of e-commerce replacing traditional bricks-and-mortar shops. In the first two decades of the 21st century, we have entered an era where much of the data created is now digital by design and default yet simultaneously integrated with physical objects and real-world interactions. This article explores some of the innovations made possible by this new physicality of data, from the birth of a digital twin to the death of privacy, and the growing urgency for new approaches to data governance and information lifecycle management.


1999 ◽  
Vol 5 (S2) ◽  
pp. 514-515 ◽  
Author(s):  
C.S. Potter ◽  
B. Carragher ◽  
M. Ceperley ◽  
C. Conway ◽  
B. Grosser ◽  
...  

Bugscope is a new educational project in the World Wide Laboratory. The World Wide Laboratory provides Web browser based control of scientific imaging instrumentation using the Internet [1]. Providing K-12 classrooms with web based remote access to sophisticated scientific imaging systems was initially demonstrated by us in 1996 in the Chickscope project [2,3]. Chickscope allowed students to study chicken embryo development using a remotely controlled magnetic resonance imaging (MRI) system from their classrooms. While the Chickscope project was highly successful, the resources required to provide operational support for the remote imaging aspects of the project for a small number of classrooms were enormous and the project was not sustainable. The Bugscope project builds on the methods developed and the lessons learned from the Chickscope project. The primary goal is to demonstrate that relatively low cost, sustainable access to an environmental scanning electron microscope (ESEM) can be made available to K-12 classrooms to examine arthropods.Methods: Classrooms use a standard web browser over the Internet to control and acquire images from a Philips XL-30FEG ESEM. The architecture to support remote acquisition is shown in fig. 1. The client/server control architecture for the ESEM remote control server is based on the emScope control library [4].


1997 ◽  
Vol 487 ◽  
Author(s):  
W. K. Warburton ◽  
D. A. Darknell ◽  
B. Hubbard-Nelson

AbstractThe XIA DXP-4C is a 4 channel, CAMAC based, x-ray spectrometer which digitally processes directly digitized preamplifier signals. The DXP-4C was designed for instrumenting multi-detector arrays for synchrotron radiation applications, and optimized for very high count rates at a low cost per detector channel. This produced a very compact and low power (3.4 W/channel) instrument for its count rate and MCA capabilities, which thus provides a strong basis for portable applications. Because all functions are digitally controlled, it can be readily adapted to various user interfaces, including remote access interfaces. Here we describe the design and examine approaches to lowering its power to 50 mW/channel. We then consider the issues in applying it to three typical portable or remote spectrometry applications.


2013 ◽  
Vol 694-697 ◽  
pp. 2634-2637
Author(s):  
Feng Liu ◽  
Xin Kun Zhang ◽  
Can Yu ◽  
Jun Xiang Gao

In recent years, video data acquisition and wireless communication are increasingly applied in the field of intelligent transportation and environmental monitoring due to its promising capability. A design of data acquisition and communication system based on embedded technology is proposed in this paper. The architecture is discussed, and the detailed design of the system is given including hardware and software solution. Chip S3C6410 and DM642 were considered as the core of information acquisition and processing. Acquired data was sent to database server on control center with integrating wireless mobile network (CDMA). Through the main page of the website based on LAMP technology, it can realize the remote access of sensor monitoring data and control the devices on the vehicle. It also supports the query of the historical records and download of the acquisition data to the client according to requests. Experiment results show that the working performance of the system is quite stable and can reach the design requirements in real-time data acquisition and remote control. Furthermore, the system has the characteristics of good expansibility, networking flexibility and low cost. The design gives a new way to collect the video data of environment instead of the traditional way using wires or manually.


2020 ◽  
Vol 2020 (4) ◽  
pp. 116-1-116-7
Author(s):  
Raphael Antonius Frick ◽  
Sascha Zmudzinski ◽  
Martin Steinebach

In recent years, the number of forged videos circulating on the Internet has immensely increased. Software and services to create such forgeries have become more and more accessible to the public. In this regard, the risk of malicious use of forged videos has risen. This work proposes an approach based on the Ghost effect knwon from image forensics for detecting forgeries in videos that can replace faces in video sequences or change the mimic of a face. The experimental results show that the proposed approach is able to identify forgery in high-quality encoded video content.


2017 ◽  
Author(s):  
JOSEPH YIU

The increasing need for security in microcontrollers Security has long been a significant challenge in microcontroller applications(MCUs). Traditionally, many microcontroller systems did not have strong security measures against remote attacks as most of them are not connected to the Internet, and many microcontrollers are deemed to be cheap and simple. With the growth of IoT (Internet of Things), security in low cost microcontrollers moved toward the spotlight and the security requirements of these IoT devices are now just as critical as high-end systems due to:


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