Fabrication of ZnO nanowires array with nanodiamond as reductant

RSC Advances ◽  
2016 ◽  
Vol 6 (99) ◽  
pp. 96479-96483 ◽  
Author(s):  
Xin Li ◽  
Shuanglong Feng ◽  
Shuangyi Liu ◽  
Zhenhu Li ◽  
Liang Wang ◽  
...  

The availability of well-aligned high quality ZnO nanowires will extend the potential applications of such materials.

2021 ◽  
Vol 7 (1) ◽  
pp. 51
Author(s):  
Allen Grace Niego ◽  
Olivier Raspé ◽  
Naritsada Thongklang ◽  
Rawiwan Charoensup ◽  
Saisamorn Lumyong ◽  
...  

The oudemansielloid/xeruloid taxa Hymenopellis, Mucidula, Oudemansiella, and Xerula are genera of Basidiomycota that constitute an important resource of bioactive compounds. Numerous studies have shown antimicrobial, anti-oxidative, anti-cancer, anti-inflammatory and other bioactivities of their extracts. The bioactive principles can be divided into two major groups: (a) hydrophilic polysaccharides with relatively high molecular weights and (b) low molecular medium polar secondary metabolites, such as the antifungal strobilurins. In this review, we summarize the state of the art on biodiversity, cultivation of the fungi and bioactivities of their secondary metabolites and discuss future applications. Although the strobilurins are well-documented, with commercial applications as agrochemical fungicides, there are also other known compounds from this group that have not yet been well-studied. Polysaccharides, dihydro-citrinone phenol A acid, scalusamides, and acetylenic lactones such as xerulin, also have potential applications in the nutraceutical, pharmaceutical and medicinal market and should be further explored. Further studies are recommended to isolate high quality bioactive compounds and fully understand their modes of action. Given that only few species of oudemansielloid/xeruloid mushrooms have been explored for their production of secondary metabolites, these taxa represent unexplored sources of potentially useful and novel bioactive metabolites.


2021 ◽  
Author(s):  
Ash Kamble

Abstract The Axial III, launched in 1994, is a patented plasma spray torch with axial injection of feedstock. In comparison to the traditional radial injection, axial injection technology has proven to offer greater deposition efficiency, throughput, and cost savings on numerous applications [1]. Despite these benefits, the original Axial III M600 torch had several limitations due to its size, mass, and number of components. To address these shortcomings, a smaller, lighter, and more ergonomic version of the torch was developed, called the Axial III Plus, that produces the same high-quality coatings at high feed rates and deposition efficiency. This paper highlights the innovations in this new torch and the potential applications it opens for the plasma spraying industry.


Author(s):  
S. Blaser ◽  
J. Meyer ◽  
S. Nebiker

Abstract. With this contribution, we describe and publish two high-quality street-level datasets, captured with a portable high-performance Mobile Mapping System (MMS). The datasets will be freely available for scientific use. Both datasets, from a city centre and a forest represent area-wide street-level reality captures which can be used e.g. for establishing cloud-based frameworks for infrastructure management as well as for smart city and forestry applications. The quality of these data sets has been thoroughly evaluated and demonstrated. For example, georeferencing accuracies in the centimetre range using these datasets in combination with image-based georeferencing have been achieved. Both high-quality multi sensor system street-level datasets are suitable for evaluating and improving methods for multiple tasks related to high-precision 3D reality capture and the creation of digital twins. Potential applications range from localization and georeferencing, dense image matching and 3D reconstruction to combined methods such as simultaneous localization and mapping and structure-from-motion as well as classification and scene interpretation. Our dataset is available online at: https://www.fhnw.ch/habg/bimage-datasets


2010 ◽  
Vol 96 (2) ◽  
pp. 023111 ◽  
Author(s):  
K. W. Liu ◽  
R. Chen ◽  
G. Z. Xing ◽  
T. Wu ◽  
H. D. Sun
Keyword(s):  

Behaviour ◽  
1992 ◽  
Vol 123 (3-4) ◽  
pp. 194-219 ◽  
Author(s):  
Bridget J. Stutchbury ◽  
Steve Zack

AbstractIn many avian societies, young birds delay breeding beyond the age of sexual maturity. Most previous hypotheses of delayed breeding have emphasized forces that keep young birds from becoming breeders. We develop a model of delayed breeding which includes the future acquisition of a high quality territory as a potential direct benefit of delayed breeding. Strong differences in territory quality, age-correlated asymmetries in resource holding potential, and territory site tenacity set the stage for young birds to either breed immediately on a poor territory, or obtain a high quality territory through reproductive delay on or near the site. A wide variety of species and social organizations reveal common patterns of breeding status acquisition through behaviours as nonbreeders with site tenacity on or immediately near the breeding site. A review of 'floater' strategies reveals that nonbreeders frequently have restricted home ranges that encompass one or more breeding territories, and prior experience at a site improves their chances of acquiring a territory in future years. This pattern of territory acquisition argues for incorporating direct benefits into models of delayed breeding. We discuss the potential applications to understanding delayed breeding in social systems as apparently different as cooperatively-breeding birds, migratory passerines, colonial breeding gulls, and lek-breeding grouse and manakins.


2014 ◽  
Vol 2014 ◽  
pp. 1-14 ◽  
Author(s):  
Thi Ha Tran ◽  
Viet Tuyen Nguyen

Cupric oxide (CuO), having a narrow bandgap of 1.2 eV and a variety of chemophysical properties, is recently attractive in many fields such as energy conversion, optoelectronic devices, and catalyst. Compared with bulk material, the advanced properties of CuO nanostructures have been demonstrated; however, the fact that these materials cannot yet be produced in large scale is an obstacle to realize the potential applications of this material. In this respect, chemical methods seem to be efficient synthesis processes which yield not only large quantities but also high quality and advanced material properties. In this paper, the effect of some general factors on the morphology and properties of CuO nanomaterials prepared by solution methods will be overviewed. In terms of advanced nanostructure synthesis, microwave method in which copper hydroxide nanostructures are produced in the precursor solution and sequentially transformed by microwave into CuO may be considered as a promising method to explore in the near future. This method produces not only large quantities of nanoproducts in a short reaction time of several minutes, but also high quality materials with advanced properties. A brief review on some unique properties and applications of CuO nanostructures will be also presented.


2012 ◽  
Vol 12 (2) ◽  
pp. 1551-1554 ◽  
Author(s):  
Keun Young Lee ◽  
Brijesh Kumar ◽  
Hyun-Kyu Park ◽  
Won Mook Choi ◽  
Jae-Young Choi ◽  
...  
Keyword(s):  

RSC Advances ◽  
2016 ◽  
Vol 6 (115) ◽  
pp. 114566-114571 ◽  
Author(s):  
Ding Wang ◽  
Xuejun Zheng ◽  
Xinchao Cao ◽  
Xianying Wang ◽  
Tong Zhang

A vertically-aligned ZnO nanowires (VA-ZnO-NWs) array was prepared via chemical vapor deposition, which was used to fabricate a vacuum pressure sensor and its sensitive characteristics were measured using a semiconductor parameter tester.


2005 ◽  
Vol 19 (15n17) ◽  
pp. 2859-2864 ◽  
Author(s):  
X. X. WU ◽  
J. J. FU ◽  
Y. YANG ◽  
Q. WU ◽  
Z. HU ◽  
...  

High-quality GaN nanorods with triangular cross section were synthesized via a simple chloride-assisted vapor phase epitaxy method. High-resolution transmission electron microscopic observations show that the synthesized GaN nanorods are single crystal with wurtzite hexagonal structure. Raman and photoluminescence measurements were also carried out to study the optical properties of the as-prepared GaN nanorods, which suggests the potential applications in optoelectronic devices.


1996 ◽  
Vol 70 (6) ◽  
pp. 1084-1087 ◽  
Author(s):  
Harry Birkmann ◽  
Robert F. Lundin

Preliminary experiments with a confocal microscope (Sarastro 2000®) demonstrate its value in micropaleontology for photography and three-dimensional morphometric studies. High-quality images of objects in the size range of 100 to 2,000 μm can be obtained without application of nonremovable coating. Images can easily be electronically converted to stereopairs or displayed as single images. Images are in focus throughout and are superior to light photographs. Numerical data (x, y, and z coordinates) in almost any desired amount can be extracted from enough points on the visible surface to provide for the construction of a detailed topographic map of the surface. All of this can be done without manipulating the specimen once it has been mounted.


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