Quantitative analysis of two low-cost aerial photography platforms: A case study of the site of Zagora, Andros, Greece

2016 ◽  
Vol 41 (6) ◽  
pp. 660-670 ◽  
Author(s):  
Hugh Thomas
2004 ◽  
Vol 31 (2) ◽  
pp. 219 ◽  
Author(s):  
Kirsty Quinlan ◽  
Dorian Moro ◽  
Mark Lund

The rare heath mouse (Pseudomys shortridgei) is the only rodent lacking a conservation program in Western Australia. Little is known about the habitat requirements of P. shortridgei in Western Australia, and there is a lack of trapping focus that could target specific habitat components that this species may use. The purpose of this study was to (1) relate the occurrence of this species to measurable components of its habitat; (2) incorporate habitat information into a GIS modelling system to identify other areas of potentially suitable habitat; and (3) test for the presence of P. shortridgei in predicted areas. In Lake Magenta Nature Reserve, 93% of P. shortridgei captures (14�of 15 mice) were associated with characteristics of a mixed laterite heath community representing 57 plant species and a dense structural layer up to 1.2 m. Aerial photography and satellite imagery were used to identify the occurrence of mixed laterite heath elsewhere within the reserve. Ground-truthing using pre-defined habitat criteria found that the best predictive model to define habitat was aerial photography. Trapping was undertaken in two areas of the reserve predicted by the modelling and resulted in the successful capture of the target species. This study demonstrates that aerial photography maps can provide a basis for focusing future trapping effort within reserves where P. shortrigei is likely to occur. The use of this GIS method provides a low-cost and simple method for improving the chances of locating additional populations of P. shortridgei in other nature reserves.


Author(s):  
Kristopher D. Staller

Abstract Cold temperature failures are often difficult to resolve, especially those at extreme low levels (< -40°C). Momentary application of chill spray can confirm the failure mode, but is impractical during photoemission microscopy (PEM), laser scanning microscopy (LSM), and multiple point microprobing. This paper will examine relatively low-cost cold temperature systems that can hold samples at steady state extreme low temperatures and describe a case study where a cold temperature stage was combined with LSM soft defect localization (SDL) to rapidly identify the cause of a complex cold temperature failure mechanism.


2012 ◽  
Vol 20 (8) ◽  
pp. 1105-1112
Author(s):  
Juan WANG ◽  
Pu-Te WU ◽  
Yu-Bao WANG ◽  
Xi-Ning ZHAO ◽  
Jian-Feng SONG ◽  
...  

2021 ◽  
Vol 13 (12) ◽  
pp. 6944
Author(s):  
Emma Anna Carolina Emanuelsson ◽  
Aurelie Charles ◽  
Parimala Shivaprasad

With stringent environmental regulations and a new drive for sustainable manufacturing, there is an unprecedented opportunity to incorporate novel manufacturing techniques. Recent political and pandemic events have shown the vulnerability to supply chains, highlighting the need for localised manufacturing capabilities to better respond flexibly to national demand. In this paper, we have used the spinning mesh disc reactor (SMDR) as a case study to demonstrate the path forward for manufacturing in the post-Covid world. The SMDR uses centrifugal force to allow the spread of thin film across the spinning disc which has a cloth with immobilised catalyst. The modularity of the design combined with the flexibility to perform a range of chemical reactions in a single equipment is an opportunity towards sustainable manufacturing. A global approach to market research allowed us to identify sectors within the chemical industry interested in novel reactor designs. The drivers for implementing change were identified as low capital cost, flexible operation and consistent product quality. Barriers include cost of change (regulatory and capital costs), limited technical awareness, safety concerns and lack of motivation towards change. Finally, applying the key features of a Sustainable Business Model (SBM) to SMDR, we show the strengths and opportunities for SMDR to align with an SBM allowing for a low-cost, sustainable and regenerative system of chemical manufacturing.


2021 ◽  
Vol 731 (1) ◽  
pp. 012024
Author(s):  
M N Cahyadi ◽  
E Y Handoko ◽  
R Mardiyanto ◽  
I M Anjasmara ◽  
Khomsin ◽  
...  

2005 ◽  
Vol 41 (1) ◽  
pp. 81-92 ◽  
Author(s):  
G. P. BUTLER ◽  
T. BERNET ◽  
K. MANRIQUE

Potatoes are an important cash crop for small-scale producers worldwide. The move away from subsistence to commercialized farming, combined with the rapid growth in demand for processed agricultural products in developing countries, implies that small-scale farmers and researchers alike must begin to respond to these market changes and consider post-harvest treatment as a critical aspect of the potato farming system. This paper presents and assesses a low cost potato-grading machine that was designed explicitly to enable small-scale potato growers to sort tubers by size for supply to commercial processors. The results of ten experiments reveal that the machine achieves an accuracy of sort similar to commercially available graders. The machine, which uses parallel conical rollers, has the capacity to grade different tuber shapes and to adjust sorting classes, making it suitable for locations with high potato diversity. Its relatively low cost suggests that an improved and adapted version of this machine might enhance market integration of small-scale potato producers not only in Peru, but in other developing countries as well.


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