High-accuracy time- and space-resolved Stark shift measurements (invited)

1997 ◽  
Vol 68 (1) ◽  
pp. 1009-1014 ◽  
Author(s):  
J. E. Bailey ◽  
R. Adams ◽  
A. L. Carlson ◽  
C. H. Ching ◽  
A. B. Filuk ◽  
...  
Keyword(s):  
High Accuracy ◽  
Stark Shift ◽  
Time And Space

scholarly journals High-accuracy time- and space-resolved Stark shift measurements

1996 ◽  
Author(s):  
J.E. Bailey ◽  
R. Adams ◽  
A.L. Carlson ◽  
C.H. Ching ◽  
A.B. Filuk ◽  
...  
Keyword(s):  
High Accuracy ◽  
Stark Shift ◽  
Time And Space

scholarly journals Multi-dimensional Precision Livestock Farming: a potential toolbox for sustainable rangeland management

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e4867 ◽  
Author(s):  
Agustina di Virgilio ◽  
Juan M. Morales ◽  
Sergio A. Lambertucci ◽  
Emily L.C. Shepard ◽  
Rory P. Wilson
Keyword(s):  
Energy Balance ◽  
Predation Risk ◽  
Feeding Rate ◽  
Livestock Production ◽  
High Accuracy ◽  
Complex Topography ◽  
Time And Space ◽  
Livestock Farming ◽  
Precision Livestock Farming ◽  
Combination Of Methods

Background Precision Livestock Farming (PLF) is a promising approach to minimize the conflicts between socio-economic activities and landscape conservation. However, its application on extensive systems of livestock production can be challenging. The main difficulties arise because animals graze on large natural pastures where they are exposed to competition with wild herbivores for heterogeneous and scarce resources, predation risk, adverse weather, and complex topography. Considering that the 91% of the world’s surface devoted to livestock production is composed of extensive systems (i.e., rangelands), our general aim was to develop a PLF methodology that quantifies: (i) detailed behavioural patterns, (ii) feeding rate, and (iii) costs associated with different behaviours and landscape traits. Methods For this, we used Merino sheep in Patagonian rangelands as a case study. We combined data from an animal-attached multi-sensor tag (tri-axial acceleration, tri-axial magnetometry, temperature sensor and Global Positioning System) with landscape layers from a Geographical Information System to acquire data. Then, we used high accuracy decision trees, dead reckoning methods and spatial data processing techniques to show how this combination of tools could be used to assess energy balance, predation risk and competition experienced by livestock through time and space. Results The combination of methods proposed here are a useful tool to assess livestock behaviour and the different factors that influence extensive livestock production, such as topography, environmental temperature, predation risk and competition for heterogeneous resources. We were able to quantify feeding rate continuously through time and space with high accuracy and show how it could be used to estimate animal production and the intensity of grazing on the landscape. We also assessed the effects of resource heterogeneity (inferred through search times), and the potential costs associated with predation risk, competition, thermoregulation and movement on complex topography. Discussion The quantification of feeding rate and behavioural costs provided by our approach could be used to estimate energy balance and to predict individual growth, survival and reproduction. Finally, we discussed how the information provided by this combination of methods can be used to develop wildlife-friendly strategies that also maximize animal welfare, quality and environmental sustainability.

Research on a High Accuracy Method for Solving Parabolic Equations Based on Analysis of Scientific Materials

2011 ◽  
Vol 282-283 ◽  
pp. 275-278
Author(s):  
Guo Cheng Li
Keyword(s):  
Parabolic Equations ◽  
High Accuracy ◽  
Time And Space ◽  
Third Order ◽  
One Dimensional

In this paper, one-dimensional parabolic equations is studied .A high accuracy method for solving one-dimensional parabolic equations is structured by choosing suitable parameters, its accuracy is better-then- third-order in time and space direction.

A New 1,000 kV Electron Microscope

1967 ◽  
Vol 25 ◽  
pp. 260-261
Author(s):  
M. Nishigaki ◽  
S. Katagiri ◽  
H. Kimura ◽  
B. Tadano
Keyword(s):  
Electron Microscope ◽  
High Voltage ◽  
Basic Research ◽  
Chromatic Aberration ◽  
High Accuracy ◽  
Biological Specimen ◽  
Voltage Electron ◽  
High Voltage Electron Microscope ◽  
High Voltage Electron

The high voltage electron microscope has many advantageous features in comparison with the ordinary electron microscope. They are a higher penetrating efficiency of the electron, low chromatic aberration, high accuracy of the selected area diffraction and so on. Thus, the high voltage electron microscope becomes an indispensable instrument for the metallurgical, polymer and biological specimen studies. The application of the instrument involves today not only basic research but routine survey in the various fields. Particularly for the latter purpose, the performance, maintenance and reliability of the microscope should be same as those of commercial ones. The authors completed a 500 kV electron microscope in 1964 and a 1,000 kV one in 1966 taking these points into consideration. The construction of our 1,000 kV electron microscope is described below.

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