Utilance photometry

2002 ◽  
Vol 34 (4) ◽  
pp. 269-275 ◽  
Author(s):  
JA Lynes
Keyword(s):  
Directional Distribution

A novel relationship is postulated expressing the direct ratio of a luminaire as a function of the room index. This permits the production of an approximate table of utilization factors for a given luminaire without any need for the directional distribution of intensity to be determined. Applications of the method are discussed.

Analisis Pola Kebakaran Lahan di Kalimantan Timur dengan MODIS dan VIIRS

2020 ◽  
Vol 21 (1) ◽  
pp. 84
Author(s):  
Aditya Pranata Wibowo ◽  
Frederik Samuel Papilaya
Keyword(s):  
Spatial Autocorrelation ◽  
Nearest Neighbor ◽  
Directional Distribution

Kebakaran adalah suatu peristiwa timbulnya reaksi oksidasi saat adanya bahan bakar, oksigen, dan energi panas yang menyebabkan pembakaran yg tidak terkendali dan menyebabkan kerugian. Pemantauan secara spasial terhadap kebakaran menjadi suatu hal yang sangat penting untuk dikaji. Penelitian ini bertujuan untuk mengetahui daerah manakah yang paling banyak mengalami kebakaran dan juga pola dari kebakaran tersebut. Sumber data didapatkan dari website FIRMS yang merupakan data yang bersifat kuantitatif dan data primer. Metode analisis yang digunakan adalah metode analisis Spatial Autocorrelation, Average Nearest Neighbor, Optimized Hotspot, Directional Distribution (Standard Devitional Ellipse), dan Temporal Collect Event. Hasil yang telah didapatkan dari analisis bermetode Directional Distribution, Optimized Hotspot, dan Temporal Collect Event adalah terdapat banyak titik api yang berada di Kecamatan Kutai Kartanegara, Kutai Barat, Kutai Timur, Berau, dan Paser. Dalam analisis Spatial Autocorrelation ditemukan bahwa terdapat korelasi antara lokasi terjadinya titik api dan ukuran sejati dari titik api. Analisis Average Nearest Neighbor menunjukkan bahwa titik api terkumpul pada beberapa tempat dan tidak tersebar merata.

scholarly journals Approximation Properties of Random Polytopes Associated with Poisson Hyperplane Processes

2014 ◽  
Vol 46 (4) ◽  
pp. 919-936
Author(s):  
Daniel Hug ◽  
Rolf Schneider
Keyword(s):  
Convex Body ◽  
Euclidean Space ◽  
Hausdorff Distance ◽  
Dimensional Euclidean Space ◽  
Approximation Properties ◽  
Random Polytopes ◽  
Directional Distribution ◽  
Zero Cell

We consider a stationary Poisson hyperplane process with given directional distribution and intensity in d-dimensional Euclidean space. Generalizing the zero cell of such a process, we fix a convex body K and consider the intersection of all closed halfspaces bounded by hyperplanes of the process and containing K. We study how well these random polytopes approximate K (measured by the Hausdorff distance) if the intensity increases, and how this approximation depends on the directional distribution in relation to properties of K.

scholarly journals Measurement of the directional distribution of incident particles in the Shuttle-Mir mission orbit

1999 ◽  
Vol 104 (A10) ◽  
pp. 22793-22799 ◽  
Author(s):  
Takao Sakaguchi ◽  
Tadayoshi Doke ◽  
Nobuyuki Hasebe ◽  
Jun Kikuchi ◽  
Sachiko Kono ◽  
...  
Keyword(s):  
Directional Distribution

scholarly journals Study of neutron energy and directional distribution at the Beloyarsk NPP selected workplaces

2020 ◽  
Author(s):  
Mariia Pyshkina ◽  
Aleksey Vasilyev ◽  
Aleksey Ekidin ◽  
Evgeniy Nazarov ◽  
Vitaly Nikitenko ◽  
...  
Keyword(s):  
Neutron Energy ◽  
Directional Distribution
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