scholarly journals Daubenmire Versus Line-Point Intercept: A Response to Thacker et al. (2015)

Rangelands ◽  
2015 ◽  
Vol 37 (4) ◽  
pp. 158-160 ◽  
Author(s):  
Trace E. Martyn ◽  
Christopher W. Beltz ◽  
Kyle A. Palmquist ◽  
Victoria E. Pennington ◽  
Caitlin M. Rottler ◽  
...  
Keyword(s):  
Line Point

scholarly journals Sage-Grouse Habitat Monitoring: Daubenmire versus Line-Point Intercept

Rangelands ◽  
2015 ◽  
Vol 37 (1) ◽  
pp. 7-13 ◽  
Author(s):  
Eric Thacker ◽  
Terry Messmer ◽  
Beth Burritt
Keyword(s):  
Sage Grouse ◽  
Habitat Monitoring ◽  
Line Point

Evaluation of a novel in-line point-of-care blood gas analyser

Anaesthesia ◽  
2016 ◽  
Vol 71 (9) ◽  
pp. 1044-1052 ◽  
Author(s):  
L. F. Miles ◽  
K. Giraud ◽  
R. Ferris ◽  
A. A. Klein ◽  
G. C. Martinez ◽  
...  
Keyword(s):  
Point Of Care ◽  
Blood Gas ◽  
Line Point

Locally Compact Hjelmslev Planes and Rings

1981 ◽  
Vol 33 (4) ◽  
pp. 988-1021 ◽  
Author(s):  
J. W. Lorimer
Keyword(s):  
Projective Planes ◽  
Equivalence Relations ◽  
Topological Spaces ◽  
Hjelmslev Plane ◽  
Projective Hjelmslev Plane ◽  
Quotient Spaces ◽  
Continuous Maps ◽  
Topological Plane ◽  
Line Point ◽  
Canonical Image

Affine and projective Hjelmslev planes are generalizations of ordinary affine and projective planes where two points (lines) may be joined by (may intersect in) more than one line (point). The elements involved in multiple joinings or intersections are neighbours, and the neighbour relations on points respectively lines are equivalence relations whose quotient spaces define an ordinary affine or projective plane called the canonical image of the Hjelmslev plane. An affine or projective Hjelmslev plane is a topological plane (briefly a TH-plane and specifically a TAH-plane respectively a TPH-plane) if its point and line sets are topological spaces so that the joining of non-neighbouring points, the intersection of non-neighbouring lines and (in the affine case) parallelism are continuous maps, and the neighbour relations are closed.In this paper we continue our investigation of such planes initiated by the author in [38] and [39].

Lines, line-point incidences and crossing families in dense sets

COMBINATORICA ◽  
1996 ◽  
Vol 16 (2) ◽  
pp. 269-294 ◽  
Author(s):  
Pavel Valtr
Keyword(s):  
Dense Sets ◽  
Line Point

scholarly journals POWER LINE EXTRACTION AND ANALYSIS BASED ON LIDAR

2020 ◽  
Vol XLII-3/W10 ◽  
pp. 91-96
Author(s):  
X. H. Chen ◽  
J. Q. Dai ◽  
Y. R. He ◽  
W. W. Ma
Keyword(s):  
Transmission Line ◽  
Point Cloud ◽  
Spatial Information ◽  
Grid Method ◽  
Power Line ◽  
Airborne Lidar ◽  
Practical Significance ◽  
Inspection Method ◽  
Low Efficiency ◽  
Line Point

Abstract. The traditional electrical power line inspection method has the disadvantages of high labor intensity, low efficiency and long cycle of re-inspection. Airborne LiDAR can quickly obtain the high-precision three-dimensional spatial information of transmission line, and the data which collected by it can make it possible to accurately detect the dangerous points.It is proposed to use the grid method to divide the data into multiple regions for the elevation histogram statistical method to obtain the power line point cloud at the complex mountainous terrain. In the non-ground point data, part of the vegetation point cloud is separated according to the point cloud dimension feature, and then the power line point and the pole point are distinguished according to the density characteristics of the point cloud so as to realize the point cloud classification of the transmission line corridor. On this basis, the power line safety distance detection is carried out on the power line points and vegetation points extracted by the classification, and the early warning analysis of the dangerous points of the transmission line tree barrier is completed. The experimental results show that the method can classify the acquired power line corridor point cloud and extract the complete power line, which effectively eliminates the hidden dangers and has certain practical significance.

scholarly journals A catalogue of Hα emission-line point sources in the vicinity fields of M 31 and M 33 from the LAMOST survey

2020 ◽  
Vol 20 (6) ◽  
pp. 097
Author(s):  
Meng Zhang ◽  
Bing-Qiu Chen ◽  
Zhi-Ying Huo ◽  
Hua-Wei Zhang ◽  
Mao-Sheng Xiang ◽  
...  
Keyword(s):  
Emission Line ◽  
Point Sources ◽  
Hα Emission ◽  
M 31 ◽  
Line Point

Comparison of visual estimation and line point intercept vegetation survey methods on annual grass-invaded rangelands of Wyoming

2021 ◽  
pp. 1-32
Author(s):  
Andrea De Stefano ◽  
Beth Fowers ◽  
Brian A. Mealor
Keyword(s):  
Vegetation Cover ◽  
Survey Methods ◽  
Primary Objective ◽  
Shannon Index ◽  
Survey Method ◽  
Visual Estimation ◽  
Vegetation Survey ◽  
Resource Managers ◽  
Natural Resource Managers ◽  
Line Point

Abstract Scientists and natural resource managers require suitable vegetation survey methods to assess the success of rangeland restoration projects. Visual estimation and point intercept methods are commonly used to evaluate vegetation cover. This study compared the performance of one visual (quadrat-based) and two line point intercept (LPI – canopy and basal) methods to assess biodiversity, cover, and to estimate biomass production on sites invaded by introduced annual grasses across Wyoming, USA. Greater species richness and higher Shannon index values were measured in quadrats, while introduced annual and native perennial graminoid cover values were higher in LPI canopy in general. Overall, these outcomes indicate quadrats as the most suitable survey method when biodiversity monitoring is the primary objective, while suggesting LPI canopy when monitoring vegetation cover is prioritized. Finally, our regression models indicated quadrat-based estimates as the most reliable to predict introduced annual and native perennial graminoid biomass.

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