scholarly journals Technological Assessment of MEMS Alkali Vapor Cells for Atomic References

Micromachines ◽  
2018 ◽  
Vol 10 (1) ◽  
pp. 25 ◽  
Author(s):  
Pawel Knapkiewicz
Keyword(s):  
Microelectromechanical Systems ◽  
Technology Development ◽  
Alkali Atom ◽  
Structure Characteristics ◽  
Cell Technology ◽  
Historical Outline ◽  
Vapor Cells ◽  
Technological Assessment ◽  
Cell Fabrication

This paper is a review that surveys work on the fabrication of miniature alkali vapor cells for miniature and chip-scale atomic clocks. Technology on microelectromechanical systems (MEMS) cells from the literature is described in detail. Special attention is paid to alkali atom introduction methods and sealing of the MEMS structure. Characteristics of each technology are collated and compared. The article’s rhetoric is guided by the proposed classification of MEMS cell fabrication methods and contains a historical outline of MEMS cell technology development.

Machine Learning Verdict of EEG Signals in Brain Computer Interface

2018 ◽  
pp. 429-441
Author(s):  
M. Jeyanthi ◽  
C. Velayutham
Keyword(s):  
Nearest Neighbor ◽  
Technology Development ◽  
Vital Role ◽  
Svm Classifier ◽  
K Nearest Neighbor ◽  
Data Mining Technique ◽  
Data Set ◽  
Eeg Data ◽  
Irrelevant Attributes

In Science and Technology Development BCI plays a vital role in the field of Research. Classification is a data mining technique used to predict group membership for data instances. Analyses of BCI data are challenging because feature extraction and classification of these data are more difficult as compared with those applied to raw data. In this paper, We extracted features using statistical Haralick features from the raw EEG data . Then the features are Normalized, Binning is used to improve the accuracy of the predictive models by reducing noise and eliminate some irrelevant attributes and then the classification is performed using different classification techniques such as Naïve Bayes, k-nearest neighbor classifier, SVM classifier using BCI dataset. Finally we propose the SVM classification algorithm for the BCI data set.

Future Directions

2020 ◽  
pp. 476-479
Author(s):  
Marc N. Potenza ◽  
Kyle A. Faust ◽  
David Faust
Keyword(s):  
Technology Development ◽  
Digital Technologies ◽  
World Health ◽  
International Classification Of Disease ◽  
Levels Of Use ◽  
Pornography Use ◽  
Negative Impacts ◽  
Mental Health Treatments ◽  
The Many

As digital technology development continues to expand, both its positive and negative applications have also grown. As such, it is essential to continue gathering data on the many types of digital technologies, their overall effects, and their impact on public health. The World Health Organization’s inclusion of Gaming Disorder in the eleventh edition of the International Classification of Disease (ICD-11) indicates that some of the problematic effects of gaming are similar to those of substance-use disorders and gambling. Certain behaviors easily engaged in via the internet may also lead to compulsive levels of use in certain users, such as shopping or pornography use. In contrast, digital technologies can also lead to improvements in and wider accessibility to mental health treatments. Furthermore, various types of digital technologies can also lead to benefits such as increased productivity or social functioning. By more effectively understanding the impacts of all types of digital technologies, we can aim to maximize their benefits while minimizing or preventing their negative impacts.

scholarly journals High quality anti-relaxation coating material for alkali atom vapor cells

2010 ◽  
Vol 18 (6) ◽  
pp. 5825 ◽  
Author(s):  
M. V. Balabas ◽  
K. Jensen ◽  
W. Wasilewski ◽  
H. Krauter ◽  
L. S. Madsen ◽  
...  
Keyword(s):  
Alkali Atom ◽  
Coating Material ◽  
High Quality ◽  
Vapor Cells

scholarly journals Constructive Technology Assessment: Systematic Review and Future Study Needs

2021 ◽  
Vol 30 (55) ◽  
pp. e12459
Author(s):  
Óscar Iván Rodríguez-Cardoso ◽  
Vladimir Alfonso Ballesteros-Ballesteros ◽  
Manuel Francisco Romero-Ospina
Keyword(s):  
Future Study ◽  
Technology Assessment ◽  
Technology Development ◽  
New Technology ◽  
Social Needs ◽  
Negative Effects ◽  
Technical Problems ◽  
European Model ◽  
Technological Assessment ◽  
Constructive Technology Assessment

Engineering, understood as the gathering of scientific and technological knowledge for innovation, creation, advancement and optimization of techniques, as well as a set of useful tools to meet social needs and solve technical problems of both individuals and the community, makes its main actors, engineers, key players in sustainable development and in the creation of alternatives that minimize the negative effects of technology on society. It is in this sense that technology assessment approaches should take importance among those who manage technology development and implementation policies. Generally, the undesirable effects of the intrusion of a new technology are acted upon when they already occur, and technology assessment is intended to anticipate the risk. This paper presents a bibliographic review of technology assessment, its approaches and future study needs. Based on an articulating axis that positions technological change and innovation as an imperative need for social development, an exhaustive review of related articles in specialized databases was carried out. The most important results of this work reveal that the field of technological assessment has been strongly inclined towards the health or sanitary sector; however, research is being developed in central engineering topics such as the development of nanotechnology, robotics, and the handling of big data, where the European model stands out as a reference for technological assessment processes due to its inclusive and democratic nature.

RA-550 Cell Technology: UC RUSAL’s New Stage of Technology Development

2018 ◽  
pp. 715-719 ◽  
Author(s):  
Viktor Mann ◽  
Andrey Zavadyak ◽  
Iliya Puzanov ◽  
Vitaly Platonov ◽  
Vitaly Pingin
Keyword(s):  
Technology Development ◽  
Cell Technology

Micro-fabrication and hermeticity measurement of alkali-atom vapor cells based on anodic bonding

2019 ◽  
Vol 17 (10) ◽  
pp. 100201
Author(s):  
Lu Zhang ◽  
Wendong Zhang ◽  
Shougang Zhang ◽  
Shubin Yan
Keyword(s):  
Alkali Atom ◽  
Anodic Bonding ◽  
Micro Fabrication ◽  
Vapor Cells

scholarly journals A Review of Advanced Algebraic Approaches Enabling Network Tomography for Future Network Infrastructures

2020 ◽  
Vol 12 (2) ◽  
pp. 20 ◽  
Author(s):  
Grigorios Kakkavas ◽  
Despoina Gkatzioura ◽  
Vasileios Karyotis ◽  
Symeon Papavassiliou
Keyword(s):  
Network Coding ◽  
Technology Development ◽  
Network Monitoring ◽  
Future Internet ◽  
Network Architectures ◽  
Network Tomography ◽  
Fundamental Operation ◽  
Qualitative Comparison ◽  
Algebraic Approaches

Network tomography has emerged as one of the lean approaches for efficient network monitoring, especially aiming at addressing the ever-increasing requirements for scaling and efficiency in modern network architectures and infrastructures. In this paper, we explore network coding and compressed sensing as enabling technologies in the context of network tomography. Both approaches capitalize on algebraic tools for achieving accuracy while allowing scaling of operation as the size of the monitored network increases. Initially, a brief overview of the tomographic problems and the related classification of methods is provided to better comprehend the problems encountered and solutions provided to date. Subsequently, we present representative approaches that employ either one of the aforementioned technologies and we comparatively describe their fundamental operation. Eventually, we provide a qualitative comparison of features and approaches that can be used for further research and technology development for network monitoring in future Internet infrastructures.

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