scholarly journals Nanostructured Color Filters: A Review of Recent Developments

Nanomaterials ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1554
Author(s):  
Ayesha Shaukat ◽  
Frazer Noble ◽  
Khalid Mahmood Arif
Keyword(s):  
High Resolution ◽  
Human Life ◽  
Incident Light ◽  
Color Filter ◽  
Flexible Design ◽  
Comprehensive Review ◽  
Image Sensing ◽  
Recent Developments ◽  
Direction Of Polarization ◽  
Color Filters

Color plays an important role in human life: without it life would be dull and monochromatic. Printing color with distinct characteristics, like hue, brightness and saturation, and high resolution, are the main characteristic of image sensing devices. A flexible design of color filter is also desired for angle insensitivity and independence of direction of polarization of incident light. Furthermore, it is important that the designed filter be compatible with the image sensing devices in terms of technology and size. Therefore, color filter requires special care in its design, operation and integration. In this paper, we present a comprehensive review of nanostructured color filter designs described to date and evaluate them in terms of their performance.

High-resolution microscopy of twin boundaries in gold

1987 ◽  
Vol 45 ◽  
pp. 260-261
Author(s):  
William Krakow ◽  
David A. Smith
Keyword(s):  
High Resolution ◽  
Specimen Preparation ◽  
Gold Films ◽  
Boundary Area ◽  
Transmission Electron ◽  
Recent Developments ◽  
Tilt Boundaries ◽  
High Resolution Microscopy ◽  
Twist Boundaries

Recent developments in specimen preparation, imaging and image analysis together permit the experimental determination of the atomic structure of certain, simple grain boundaries in metals such as gold. Single crystal, ∼125Å thick, (110) oriented gold films are vapor deposited onto ∼3000Å of epitaxial silver on (110) oriented cut and polished rock salt substrates. Bicrystal gold films are then made by first removing the silver coated substrate and placing in contact two suitably misoriented pieces of the gold film on a gold grid. Controlled heating in a hot stage first produces twist boundaries which then migrate, so reducing the grain boundary area, to give mixed boundaries and finally tilt boundaries perpendicular to the foil. These specimens are well suited to investigation by high resolution transmission electron microscopy.

Biosecurity: tools, behaviours and concepts

2020 ◽  
Vol 4 (5) ◽  
pp. 449-452
Author(s):  
Alan MacLeod ◽  
Nicola Spence
Keyword(s):  
Plant Protection ◽  
Human Life ◽  
Animal Health ◽  
Early Warning Systems ◽  
Policy Makers ◽  
Recent Developments ◽  
Surveillance Programs ◽  
Harmful Organisms ◽  
The One ◽  
Biosecurity Practices

COVID 19 has raised the profile of biosecurity. However, biosecurity is not only about protecting human life. This issue brings together mini-reviews examining recent developments and thinking around some of the tools, behaviours and concepts around biosecurity. They illustrate the multi-disciplinary nature of the subject, demonstrating the interface between research and policy. Biosecurity practices aim to prevent the spread of harmful organisms; recognising that 2020 is the International Year of Plant Health, several focus on plant biosecurity although invasive species and animal health concerns are also captured. The reviews show progress in developing early warning systems and that plant protection organisations are increasingly using tools that compare multiple pest threats to prioritise responses. The bespoke modelling of threats can inform risk management responses and synergies between meteorology and biosecurity provide opportunities for increased collaboration. There is scope to develop more generic models, increasing their accessibility to policy makers. Recent research can improve pest surveillance programs accounting for real-world constraints. Social science examining individual farmer behaviours has informed biosecurity policy; taking a broader socio-cultural approach to better understand farming networks has the potential to change behaviours in a new way. When encouraging public recreationists to adopt positive biosecurity behaviours communications must align with their values. Bringing together the human, animal, plant and environmental health sectors to address biosecurity risks in a common and systematic manner within the One Biosecurity concept can be achieved through multi-disciplinary working involving the life, physical and social sciences with the support of legislative bodies and the public.

Recent developments in forward osmosis membrane bioreactors: a comprehensive review

2016 ◽  
Vol 57 (59) ◽  
pp. 28610-28645 ◽  
Author(s):  
Murat Eyvaz ◽  
Taha Aslan ◽  
Serkan Arslan ◽  
Ebubekir Yüksel ◽  
İsmail Koyuncu
Keyword(s):  
Forward Osmosis ◽  
Membrane Bioreactors ◽  
Comprehensive Review ◽  
Recent Developments

Solar photocatalysis for water disinfection: materials and reactor design

2014 ◽  
Vol 4 (5) ◽  
pp. 1211-1226 ◽  
Author(s):  
Donal A. Keane ◽  
Kevin G. McGuigan ◽  
Pilar Fernández Ibáñez ◽  
M. Inmaculada Polo-López ◽  
J. Anthony Byrne ◽  
...  
Keyword(s):  
Reactor Design ◽  
Water Disinfection ◽  
Materials Synthesis ◽  
Comprehensive Review ◽  
Solar Photocatalysis ◽  
Photocatalytic Mechanism ◽  
Recent Developments

This comprehensive review addresses the fundamentals of photocatalytic mechanism, recent developments in materials synthesis and reactor design.

scholarly journals Color Filters: Plasmonic Color Filter and its Fabrication for Large-Area Applications (Advanced Optical Materials 2/2013)

2013 ◽  
Vol 1 (2) ◽  
pp. 109-109 ◽  
Author(s):  
Yun Seon Do ◽  
Jung Ho Park ◽  
Bo Yeon Hwang ◽  
Sung-Min Lee ◽  
Byeong-Kwon Ju ◽  
...  
Keyword(s):  
Optical Materials ◽  
Color Filter ◽  
Large Area ◽  
Color Filters

scholarly journals High-resolution analysis of 1 day extreme precipitation in Sicily

2015 ◽  
Vol 15 (10) ◽  
pp. 2347-2358 ◽  
Author(s):  
M. Maugeri ◽  
M. Brunetti ◽  
M. Garzoglio ◽  
C. Simolo
Keyword(s):  
High Resolution ◽  
Extreme Precipitation ◽  
Human Life ◽  
Extreme Value Distribution ◽  
Generalized Extreme Value Distribution ◽  
Return Level ◽  
Regional Frequency Analysis ◽  
Economic Losses ◽  
Data Set ◽  
High Quantiles

Abstract. Sicily, a major Mediterranean island, has experienced several exceptional precipitation episodes and floods during the last century, with serious damage to human life and the environment. Long-term, rational planning of urban development is indispensable to protect the population and to avoid huge economic losses in the future. This requires a thorough knowledge of the distributional features of extreme precipitation over the complex territory of Sicily. In this study, we perform a detailed investigation of observed 1 day precipitation extremes and their frequency distribution, based on a dense data set of high-quality, homogenized station records in 1921–2005. We estimate very high quantiles (return levels) corresponding to 10-, 50- and 100-year return periods, as predicted by a generalized extreme value distribution. Return level estimates are produced on a regular high-resolution grid (30 arcsec) using a variant of regional frequency analysis combined with regression techniques. Results clearly reflect the complexity of this region, and show the high vulnerability of its eastern and northeastern parts as those prone to the most intense and potentially damaging events.

scholarly journals An Overview of Post-COVID-19 Patient’s Health Monitoring Systems

2021 ◽  
Vol 7 (10) ◽  
pp. 61-67
Author(s):  
Chirag Satapathy, Hrishikesh Gokhale, Ali Zoya Syed, Keerti Srivastava and Ruban Nersisson
Keyword(s):  
Health Monitoring ◽  
Human Life ◽  
Vital Role ◽  
Health Conditions ◽  
Smart Sensors ◽  
Monitoring Systems ◽  
Comprehensive Review ◽  
Global Pandemic ◽  
Health Monitoring Systems ◽  
Time Basis

COVID-19 is a global pandemic infecting human life. There are many patients who have recovered from this deadly virus and need to be monitored constantly even when they are at home. IoT plays a vital role in health systems that help to monitor patient’s health conditions. These healthcare frameworks consist of smart sensors to keep a track of patient’s vitals on a real-time basis. These systems will help bridge gaps between the patients and doctors during the pandemic situation. In order to make our system competitive against the already existing devices, we prepared a comprehensive review where we extensively studied other products and compared them to find what's best for the patients.

scholarly journals Direct Ink Writing of Materials for Electronics-Related Applications: A Mini Review

2021 ◽  
Vol 8 ◽  
Author(s):  
Zhenzhong Hou ◽  
Hai Lu ◽  
Ying Li ◽  
Laixia Yang ◽  
Yang Gao
Keyword(s):  
Human Life ◽  
Electronic Devices ◽  
Electronic Components ◽  
Direct Ink Writing ◽  
Recent Developments ◽  
Print Materials ◽  
On Chip ◽  
Functional Components ◽  
Printing Techniques

Recently, the fabrication of electronics-related components via direct ink writing (DIW) has attracted much attention. Compared to the conventionally fabricated electronic components, DIW-printed ones have more complicated structures, higher accuracy, improved efficiency, and even enhanced performances that arise from well-designed architectures. The DIW technology allows directly print materials on a variety of flat substrates, even a conformal one, well suiting them to applications such as wearable devices and on-chip integrations. Here, recent developments in DIW printing of emerging components for electronics-related applications are briefly reviewed, including electrodes, electronic circuits, and functional components. The printing techniques, processes, ink materials, advantages, and properties of DIW-printed architectures are discussed. Finally, the challenges and outlooks on the manufacture of 3D structured electronic devices by DIW are outlined, pointing out future designs and developments of DIW technology for electronics-related applications. The combination of DIW and electronic devices will help to improve the quality of human life and promote the development of science and society.

Sign in / Sign up

Export Citation Format

Share Document