Results 11 to 20 of about 1,995,912 (245)

Study of a set of factors influencing the error of surveying mine facilities using a geodesic quadcopter

open access: yesЗаписки Горного института, 2022
The factors influencing the qualitative and quantitative components of the result of surveying in open-pit mining using a quadcopter were identified and systematized, and the mathematical dependence of the influence of factors on the final error of ...
Vladimir N. Gusev   +2 more
doaj   +1 more source

Establishment and optimization of high-frequency regeneration system for Zoysia japonica Steed

open access: yes浙江大学学报. 农业与生命科学版, 2007
Regeneration system of Zoysia japonica Steud. in vitro was studied with leaves as explants. The results showed that optimal medium for callus induction was MS+1.5 mg·L-1 2, 4-dichlorophenoxyacetic acid (2,4-D)+0.5 tng·L-1 6-benzyladenine (6-BA)+26 g·L-1 ...
DU Min-hua, CHAI Chun-yue, TIAN Long
doaj   +1 more source

Technique of the Analysis of Variance [PDF]

open access: yesNature, 1947
The analysis of variance technique originally devised by Prof. R. A. Fisher for the interpretation of agricultural experiments concerned the case of equal frequencies in the sub-classes. Prof. Fisher himself extended his technique to the case of unequal frequencies1, when only the effect of one single variable was under examination.
openaire   +3 more sources

Study on the Influence and Optimization of the Venturi Effect on the Natural Ventilation of Buildings in the Xichang Area

open access: yesEnergies, 2021
Natural ventilation is a way to reduce the energy consumption of building operations and improve the indoor living environment comfort. The venturi cap is designed with a roof, grille and wind deflector to intensify the natural ventilation of buildings ...
Lili Zhang   +8 more
doaj   +1 more source

Noise variance estimation based on image segmentation

open access: yes工程科学学报, 2015
A new two-step noise variance estimation algorithm was proposed based on image segmentation. In the first step, a noisy image was smoothed and was segmented by the statistical region merge (SRM) algorithm, then the variance of each region was computed ...
WANG Zhi-ming
doaj   +1 more source

Modeling and optimization of face milling process parameters for AISI 4140 steel

open access: yesTehnički Glasnik, 2018
In this study, the effect of cutting parameters such as the depth of cut, feed rate, cutting speed and the number of inserts on surface roughness were investigated in the milling of the AISI 4140 steel.
Gokhan Basar   +3 more
doaj   +1 more source

Characteristics and main influence factors of heat waves in Beijing–Tianjin–Shijiazhuang cities of northern China in recent 50 years

open access: yesAtmospheric Science Letters, 2020
Heat wave is serious natural disaster that can harm human health and affect social economy, transportation and ecological environment. This paper investigates the long term trends of high temperature events in three major cities (Beijing, Tianjin and ...
Zuofang Zheng   +4 more
doaj   +1 more source

Teaching application of statistics methods to bachelors of technological fields in case of a competence approach

open access: yesВестник Майкопского государственного технологического университета, 2023
The article proposes the use of a competence-based learning model, ensuring a practice-oriented nature of mathematical tasks through interdisciplinary integration.
Lyudmila Nikolaevna Mamadalieva   +1 more
doaj   +1 more source

The analysis of variance and the analysis of causes [PDF]

open access: yesInternational Journal of Epidemiology, 2006
Uploaded by Plazi for TaxoDros. We do not have abstracts.
openaire   +1 more source

Monte Carlo Simulations for the Analysis of Non-linear Parameter Confidence Intervals in Optimal Experimental Design

open access: yesFrontiers in Bioengineering and Biotechnology, 2019
Especially in biomanufacturing, methods to design optimal experiments are a valuable technique to fully exploit the potential of the emerging technical possibilities that are driving experimental miniaturization and parallelization. The general objective
Niels Krausch   +6 more
doaj   +1 more source

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