Results 11 to 20 of about 565,129 (288)

Studies on the Rationalization of Thinning Operation

open access: yesJapanese Journal of Farm Work Research, 1970
1. For comparing the time requirements of the plants singling works in the traditional method and the platform method, the survey on the work diaries and the time studies on singling works were carried out in turnip fields.2. From the results of the survey on the work diaries, it was comfirmed that the most labour saving work sequence was “drilling in ...
Wataru SUNOHARA   +2 more
  +12 more sources

Testing hypotheses of the cause of peripheral thinning of the Greenland Ice Sheet: is land-terminating ice thinning at anomalously high rates? [PDF]

open access: yes, 2008
Recent observations have shown that the periphery of the Greenland ice sheet (GrIS) is thinning rapidly and that this thinning is greatest around marine-terminating outlet glaciers. Several theories have been proposed which provide a link between climate
Krabill, W   +14 more
core   +2 more sources

On Some Stationary INAR(1) Processes with Compound Poisson Distributions

open access: yesRevstat Statistical Journal, 2023
Aly and Bouzar ([2]) used the backward approach in presence of the binomial thinning operator to construct underdispersed stationary first-order autoregressive integer valued (INAR (1)) processes.
Emad-Eldin A. A. Aly, Nadjib Bouzar
doaj   +1 more source

Coherent Forecasting for a Mixed Integer-Valued Time Series Model

open access: yesMathematics, 2022
In commerce, economics, engineering and the sciences, quantitative methods based on statistical models for forecasting are very useful tools for prediction and decision.
Wooi Chen Khoo   +2 more
doaj   +1 more source

The Saffman-Taylor problem for an extremely shear-thinning fluid [PDF]

open access: yes, 2007
We consider a steady flow driven by pushing a finger of gas into a highly shear-thinning power-law fluid, with exponent n, in a Hele-Shaw channel. We formulate the problem in terms of the streamfunction , which satisfies the p-Laplacian equation (with ),
J. King   +3 more
core   +1 more source

Likelihood Inference for Generalized Integer Autoregressive Time Series Models

open access: yesEconometrics, 2019
For modeling count time series data, one class of models is generalized integer autoregressive of order p based on thinning operators. It is shown how numerical maximum likelihood estimation is possible by inverting the probability generating function of
Harry Joe
doaj   +1 more source

Limit-periodic Dirac operators with thin spectra

open access: yesJournal of Functional Analysis, 2022
25 ...
Benjamin Eichinger   +3 more
openaire   +3 more sources

Residual Analysis with Bivariate INAR(1) Models

open access: yesRevstat Statistical Journal, 2018
In this paper we analyze forecasting errors made by random coefficients bivariate integer-valued autoregressive models of order one. These models are based on the thinning operator to support discreteness of data.
Predrag M. Popović   +2 more
doaj   +1 more source

A preliminary evaluation of FY-4A visible radiance data assimilation by the WRF (ARW v4.1.1)/DART (Manhattan release v9.8.0)-RTTOV (v12.3) system for a tropical storm case [PDF]

open access: yesGeoscientific Model Development, 2022
Satellite visible radiance data that contain rich cloud and precipitation information are increasingly assimilated to improve the forecasts of numerical weather prediction models.
Y. Zhou   +7 more
doaj   +1 more source

The concentration of carbon monoxide in the breathing areas of workers during logging operations at the motor-manual level

open access: yesInternational Journal of Occupational Medicine and Environmental Health, 2014
Objectives: This article compares 2 variants of logging technologies at the motor-manual level: variant A – cutting and delimbing by means of a petrol chainsaw, skidding with the use of a cable winch mounted on a tractor (67–74 kW); variant B – cutting ...
Krzysztof Leszczyński
doaj   +1 more source

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