scholarly journals Aspects of nanomaterials for civil and military applications. Part 1. Origins, characteristics and fabrication methods

2020 ◽  
pp. 5-16
Author(s):  
Zenon Foltynowicz ◽  
Bogdan Czajka ◽  
Andrzej Maranda ◽  
Leszek Wachowski
Keyword(s):  
Production Methods ◽  
Practical Applications ◽  
Nano Scale ◽  
Military Applications ◽  
Highly Dispersed ◽  
General Aspects

The study presents general aspects of highly dispersed nano scale materials including their origins, structure, classification, properties and production methods. In the last two decades, the unique properties and phenomena observed for those material has revolutionized the industry with a significant increase in research and the scope of practical applications of nanotechnology in every aspect of our lives.

scholarly journals Exploiting Textured 3D Models for Developing Serious Games

2015 ◽  
Vol XL-5/W7 ◽  
pp. 249-255 ◽  
Author(s):  
G. Kontogianni ◽  
A. Georgopoulos
Keyword(s):  
Serious Games ◽  
Laser Scanner ◽  
3D Models ◽  
Serious Game ◽  
Educational Game ◽  
Future Perspective ◽  
Production Methods ◽  
Military Applications ◽  
The Creation ◽  
Textured Models

Digital technologies have affected significantly many fields of computer graphics such as Games and especially the field of the Serious Games. These games are usually used for educational proposes in many fields such as Health Care, Military applications, Education, Government etc. Especially Digital Cultural Heritage is a scientific area that Serious Games are applied and lately many applications appear in the related literature. Realistic 3D textured models which have been produced using different photogrammetric methods could be a useful tool for the creation of Serious Game applications in order to make the final result more realistic and close to the reality. The basic goal of this paper is how 3D textured models which are produced by photogrammetric methods can be useful for developing a more realistic environment of a Serious Game. The application of this project aims at the creation of an educational game for the Ancient Agora of Athens. The 3D models used vary not only as far as their production methods (i.e. Time of Flight laser scanner, Structure from Motion, Virtual historical reconstruction etc.) is concerned, but also as far as their era as some of them illustrated according to their existing situation and some others according to how these monuments looked like in the past. The Unity 3D<sup>®</sup> game developing environment was used for creating this application, in which all these models were inserted in the same file format. For the application two diachronic virtual tours of the Athenian Agora were produced. The first one illustrates the Agora as it is today and the second one at the 2nd century A.D. Finally the future perspective for the evolution of this game is presented which includes the addition of some questions that the user will be able to answer. Finally an evaluation is scheduled to be performed at the end of the project.

scholarly journals Low-Dimensional Materials and State-of-the-Art Architectures for Infrared Photodetection

Sensors ◽  
2018 ◽  
Vol 18 (12) ◽  
pp. 4163 ◽  
Author(s):  
Nasir Ilyas ◽  
Dongyang Li ◽  
Yuhao Song ◽  
Hao Zhong ◽  
Yadong Jiang ◽  
...  
Keyword(s):  
State Of The Art ◽  
Infrared Photodetectors ◽  
Plasmonic Nanostructures ◽  
Plasmonic Waveguides ◽  
Practical Applications ◽  
Military Applications ◽  
Infrared Photodetection ◽  
Photon Confinement ◽  
Low Dimensional ◽  
Low Dimensional Materials

Infrared photodetectors are gaining remarkable interest due to their widespread civil and military applications. Low-dimensional materials such as quantum dots, nanowires, and two-dimensional nanolayers are extensively employed for detecting ultraviolet to infrared lights. Moreover, in conjunction with plasmonic nanostructures and plasmonic waveguides, they exhibit appealing performance for practical applications, including sub-wavelength photon confinement, high response time, and functionalities. In this review, we have discussed recent advances and challenges in the prospective infrared photodetectors fabricated by low-dimensional nanostructured materials. In general, this review systematically summarizes the state-of-the-art device architectures, major developments, and future trends in infrared photodetection.

Mechanisms of Entrapment and Release of Fluid Droplets From Nano-Scale Surface Features

2012 ◽  
Author(s):  
William Chong ◽  
Mircea Teodorescu ◽  
Ashlie Martini ◽  
Homer Rahnejat
Keyword(s):  
Direct Contact ◽  
Md Simulation ◽  
Permeable Membrane ◽  
Practical Applications ◽  
Nano Scale ◽  
Simulation Techniques ◽  
Fluid Behavior ◽  
Multiple Length Scales ◽  
Fast Prediction ◽  
Scale Surface

Engineering surfaces are never perfectly flat. They contain micro and nano-scale features on multiple length scales. Predicting the amount of fluid trapped in these minute surface crevices and its controlled release could benefit a variety of practical applications. In a sliding contact, the released fluid could create an ultra-thin film, reducing the direct contact and consequently the boundary friction. Transdermal patches are the least invasive of available subcutaneous drug delivery techniques. The drug is stored in a micro-reservoir and it is released to the skin either through a permeable membrane or through a series of micro needles. The aim of the current paper represents the first attempt to investigate whether a modeling approach encompassing two complementary simulation techniques in an integrated framework can be used to predict the volume of fluid stored in a nano-scale surface feature. Molecular dynamics (MD) simulation could provide accurate modeling of fluid behavior at nano-scale, and statistical mechanics (SM) could provide a fast prediction.

Titanium Oxide-Based Photocatalysts: -From Fundamentals to Practical Applications-

2006 ◽  
Vol 510-511 ◽  
pp. 5-8
Author(s):  
Koichiro Tsujimaru ◽  
Masakazu Anpo
Keyword(s):  
Titanium Oxide ◽  
Metal Ion ◽  
Tio2 Thin Film ◽  
Ion Beam ◽  
Physical Method ◽  
Rf Magnetron Sputtering ◽  
Sputtering Deposition ◽  
Practical Applications ◽  
Highly Dispersed ◽  
Beam Utilization

Advanced ion-beam techniques such as metal ion-implantation and RF magnetron sputtering deposition were successfully applied in the development of titanium oxide photocatalysts capable of absorbing and working under both UV and visible light irradiation. This advanced physical method was found to be one of the most promising approaches to preparation of highly functional second-generation titanium oxide-based photocatalytic materials, TiO2 nano-powders, highly dispersed titanium oxide species within zeolite frameworks, and TiO2 thin film systems with efficient solar beam utilization of up to 20-30 %.

scholarly journals THE GEOPHYTE, TM - A COMPUTER PROGRAM FOR BULBOUS, TUBEROUS, AND HERBACEOUS PERENNIAL PLANTS

HortScience ◽  
1991 ◽  
Vol 26 (5) ◽  
pp. 484a-484
Author(s):  
A. A De Hertogh ◽  
C. Noone ◽  
A. Lutman
Keyword(s):  
Information Access ◽  
Specific Information ◽  
Cut Flowers ◽  
Production Methods ◽  
Potted Plants ◽  
Species Origin ◽  
Commercial Cultivars ◽  
General Aspects ◽  
Herbaceous Perennial ◽  
Botanical Classification

Much information has been accumulated on various aspects of ornamental geophytes. This knowledge has been published in research articles and bulletins, books, extension publications, etc. Thus, it is scattered and not easily accessible. The Geophyte TM software program was developed to aid in information access and transfer. It has been designed for IBM compatible systems. There are 7 major parts in each database. They are: 1- General Aspects (species origin, botanical classification, common names, etc), 2- Flowering Requirements, 3- Production Information (production countries and acreage, major commercial cultivars, production methods, etc.), 4- Gardening Information (soil types, light, planting info, cultivar performance data, etc.), 5- Forcing Information (commercial cut flowers, potted plants, homeowner forcing), 6- References, and 7- In-House Information, a slot allowing the user to insert specific information on the genera provided.

Formamide-soluble solid-state ZnO as Zn source for synthesizing FeCo-NC with ultrahigh oxygen reduction reaction activity

2021 ◽  
Author(s):  
Yanhui Sun ◽  
Zong-Ge Li ◽  
Yinglong Wu ◽  
Jinrui Tian ◽  
Yaqun Wang ◽  
...  
Keyword(s):  
Solid State ◽  
Oxygen Reduction Reaction ◽  
Low Cost ◽  
Synthesis Method ◽  
Reduction Reaction ◽  
Efficient Synthesis ◽  
Oxygen Reduction Reaction Activity ◽  
Practical Applications ◽  
Highly Dispersed ◽  
Soluble Solid

The low-cost synthesis of highly dispersed non-noble metal-nitrogen-carbon (MNC) electrocatalysts hinders their practical applications. Here, we have developed a cost/time-efficient synthesis method for MNC with highly dispersed metal sites, using...

FABRICATION OF PATTERNED ELECTROLUMINESCENT POLYMERS WITH MICROCONTACT PRINTING

2004 ◽  
Vol 13 (03n04) ◽  
pp. 643-647 ◽  
Author(s):  
MIN JU PARK ◽  
WON MOOK CHOI ◽  
O OK PARK
Keyword(s):  
Microcontact Printing ◽  
The Self ◽  
Pdms Mold ◽  
Self Assembled Monolayer ◽  
Practical Applications ◽  
Nano Scale ◽  
Self Assembled ◽  
Electroluminescent Polymers

For most practical applications, it is essential to fabricate micro- or nano-scale polymer electroluminescent (EL) devices and pixel arrays. Microcontact printing, which uses a patterned elastomer (usually PDMS) as the mold to generate or transfer the pattern offers immediate advantages. Here we describe a method of patterning polymeric EL materials based on microcontact printing using PDMS mold. In this technique, we use the self-assembled monolayer (SAM) system of alkanephosphonic acids on ITO substrate, and patterned EL polymer is formed on the SAM-modified ITO substrate.

Systematic toxicological analysis by high-performance liquid chromatography with diode array detection (HPLC-DAD)

2004 ◽  
Vol 42 (11) ◽  
Author(s):  
Fritz Pragst ◽  
Matthias Herzler ◽  
Björn-Thoralf Erxleben
Keyword(s):  
High Performance ◽  
High Specificity ◽  
Reversed Phase ◽  
Uv Spectra ◽  
Practical Applications ◽  
Toxicological Analysis ◽  
Systematic Toxicological Analysis ◽  
Array Detectors ◽  
Photodiode Array ◽  
General Aspects

AbstractIn recent years, photodiode array detectors (DADs) have been much improved with respect to wavelength accuracy and resolution, sensitivity, linearity and software operation. UV spectra of drugs measured with up-to-date DADs from different manufacturers are in excellent agreement, have the same quality as measured by a conventional UV spectrometer and are highly reproducible. The calculation of similarity parameters by the DAD software includes the entire range of the spectra compared and allows recognition of very small differences. It was shown in a systematic study of more than 2500 toxicologically relevant substances that UV spectra have a very high specificity with respect to substance structure. Therefore, HPLC-DAD in combination with a comprehensive database of UV spectra and retention parameters is one of the most efficient techniques used in systematic toxicological analysis (STA). Furthermore, the method is advantageous for the identification of metabolites, since in many cases they have the same or very similar UV spectra compared with their respective parent substances and their retention times on reversed-phase columns are shifted in a manner typical of the particular biotransformation reaction. Beside these general aspects, practical applications of HPLC-DAD for STA are reviewed with respect to sample preparation and chromatographic conditions. The efficiency of the method is demonstrated for an example of a routine procedure using liquid-liquid extraction with CH

scholarly journals Aspects of nanomaterials for civil and military applications. Part 2. Their use and concerns arising from their release into the natural environment

2020 ◽  
pp. 17-36
Author(s):  
Zenon Foltynowicz ◽  
Bogdan Czajka ◽  
Andrzej Maranda ◽  
Leszek Wachowski
Keyword(s):  
Mechanical Properties ◽  
Natural Environment ◽  
Engineered Nanoparticles ◽  
Modern World ◽  
Practical Applications ◽  
Nanoscience And Nanotechnology ◽  
Dynamic Development ◽  
Physical Chemical ◽  
Wide Range ◽  
Military Applications

The dynamic development of nanoscience and nanotechnology has led to revolutionary changes in many areas of science and industry, raising a great deal of hope for its potential to solve a wide range of problems of the modern world. Nanomaterials, also referred to as engineered nanoparticles are a product of nanotechnology and, compared to macro-particles, show unique physical, chemical, biological and mechanical properties which significantly extend the range of practical applications. The paper presents the applicability of engineered nanoparticles in the defence industry and concerns related to their release into the environment.

Sign in / Sign up

Export Citation Format

Share Document