Results 41 to 50 of about 89,049 (160)

ASYMPTOTIC PROPERTIES OF THE GAUGE AND POWER OF STEP-INDICATOR SATURATION

Econometric Theory
Detecting multiple structural breaks at unknown dates is a central challenge in time-series econometrics. Step-indicator saturation (SIS) addresses this challenge during model selection, and we develop its asymptotic theory for tuning parameter choice.
Nielsen, B, Qian, M
openaire   +2 more sources

Aragonite Saturation State as an Indicator for Oyster Habitat Health in the Delaware Inland Bays

Coasts
Bivalves such as oysters rely on aragonite and calcite for shell formation via the biomineralization of calcium carbonate. Ocean acidification reduces carbonate ion availability, compromising shell growth and inducing dissolution under undersaturated ...
Tahera Attarwala, Amin Boukari, Gulnihal Ozbay   +2 more
doaj   +1 more source

Fecal indicator bacteria and virus removal in stormwater biofilters: Effects of biochar, media saturation, and field conditioning.

PLoS ONE, 2019
Stormwater biofilters are used to attenuate the flow and volume of runoff and reduce pollutant loading to aquatic systems. However, the capacity of biofilters to remove microbial contaminants remains inadequate.
Benjamin P Kranner, A R M Nabiul Afrooz, Nicole J M Fitzgerald, Alexandria B Boehm   +3 more
doaj   +1 more source

Assessing saturation level on COI gene in aphids as a method for determination of relative age of taxa

Фактори експериментальної еволюції організмів, 2013
Aims. DNA saturation effect forms in evolutionary conservative genes as a result of repeated nucleotide substitutions which occur at the same variable loci.
N. V. Voronova, S. V. Rizevskiy, V. P. Kurchenko, S. V. Buga   +3 more
doaj  

Assessment of Vegetation Index Saturation Based on Vertically Stratified Aboveground Biomass in Temperate Meadow Steppe

Remote Sensing
Grassland aboveground biomass (AGB) is a key indicator of grassland ecosystem structure and function, and its accurate monitoring is of great importance for assessing grassland ecological conditions and supporting sustainable grassland management ...
Yuli Shi, Yidi Wang, Yiqing Hao, Cong Xu, Fangwen Yang, Zhijie Bai, Dan Zhao, Xiaohua Zhu, Wei Liu   +8 more
doaj   +1 more source

Features of the human cardiovascular and respiratory systems after training in hypoventilation breathing in combination with physical exercises

Спортивная медицина: наука и практика, 2020
Objective: to study the features of cardiovascular and respiratory systems after individual training in hypoventilation breathing in combination with physical exercises.
S. Ya. Klassina
doaj   +1 more source

An Anti-Windup Method Based on an LADRC for Miniaturized Inertial Stabilized Platforms on Unmanned Vehicles in Marine Applications

Journal of Marine Science and Engineering
This paper investigates an anticipatory activation anti-windup approach based on Linear Active Disturbance Rejection Control (LADRC) to address the influences of accelerated saturation on the actuators in a Miniaturized Inertial Stabilized Platform (MISP)
Tianlei Fu, Lianwu Guan, Yanbin Gao, Chao Qin   +3 more
doaj   +1 more source

Lithology and Fluid discrimination of Sody field of the Nigerian Delta

Journal of Applied Sciences and Environmental Management, 2020
The lithology and fluid discrimination of an onshore Sody field, of the Niger Delta was studied using gamma ray, resistivity and density logs from  three wells in the field in order to evaluate the field’s reservoir properties.
S.C.P. Finecountry, S. Inichinbia
doaj   +1 more source

Cross-Sectional Analysis of Impulse Indicator Saturation Method for Outlier Detection Estimated via Regularization Techniques with Application of COVID-19 Data. [PDF]

Comput Math Methods Med, 2022
Muhammadullah S, Urooj A, Mengal MH, Khan SA, Khalaj F.   +4 more
europepmc   +1 more source

New correlation for estimation of cementation factor in Asmari carbonate rock reservoirs

Egyptian Journal of Petroleum, 2018
The cement factor is one of the most important Archie parameters which is a major source of uncertainty in the calculation of water saturation for a given reservoir condition.
Mohammad Shahi, Mehdi Mohammad Salehi, Mosayyeb Kamari   +2 more
doaj   +1 more source