Results 11 to 20 of about 2,266,638 (297)

Validation of deep freezing of pilot samples for checking of time stability of indirect analyses of basic milk composition and for their long shelf-life

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2008
Essential part of raw milk component measurement is indirect infraanalyse. The checking of time measurement stability is important there. The preparation of pilot samples was described.
Oto Hanuš   +5 more
doaj   +1 more source

Comparative Analysis of Methods for Somatic Cell Counting in Cow’s Milk and Relationship between Somatic Cell Count and Occurrence of Intramammary Bacteria

open access: yesVeterinary Sciences, 2023
The aim of this study was to compare three on-farm commercial methods for the indirect detection of subclinical mastitis in dairy cows: the California mastitis test (CMT), the Porta side somatic cell count milk test (Porta SCC), and the DeLaval cell ...
Vladimír Hisira   +6 more
doaj   +1 more source

Fourth order indirect integration method for black hole perturbations: even modes [PDF]

open access: yes, 2010
On the basis of a recently proposed strategy of finite element integration in time domain for partial differential equations with a singular source term, we present a fourth order algorithm for non-rotating black hole perturbations in the Regge-Wheeler ...
Alessandro D A M Spallicci   +25 more
core   +4 more sources

A New 3D Shaping Method for Low-Thrust Trajectories between Non-Intersect Orbits

open access: yesAerospace, 2021
This paper proposes a new shape-based method in spherical coordinates to solve three-dimensional rendezvous problems. Compared with the existing shape-based methods, the proposed method does not need parameter optimization.
Tongxin Zhang   +3 more
doaj   +1 more source

Comparison of indigestible markers from in situ and in vivo incubation to predict apparent digestibility in hay- and corn-fed horses - 10.4025/actascianimsci.v34i1.10572

open access: yesActa Scientiarum: Animal Sciences, 2011
Four castrated crossbred horses were used in a randomized block design to study the use of indigestible internal markers iNDF and iADF obtained in situ(from bovines) or in vivo (from equines).
Janaina Carolina de Sá   +4 more
doaj   +3 more sources

Optimization of Geostationary Orbit Transfers via Combined Chemical–Electric Propulsion

open access: yesAerospace, 2022
For geostationary orbit transfers, a long duration is required using electric propulsion and a large propellant mass is needed with chemical propulsion. Hybrid transfers can achieve a balance between the fuel consumption and transfer time. In this paper,
Shihai Yang, Bo Xu, Xin Li
doaj   +1 more source

Sensitivity Analysis of Ship Manoeuvring Mathematical Models

open access: yesJournal of Marine Science and Engineering, 2023
Sensitivity analysis is applied to ship manoeuvring mathematical models as a means of dealing with model uncertainties, and often leads to model simplifications.
P. Pires da Silva   +2 more
doaj   +1 more source

Feasibility study on gas pressure measurement technology of coal seam without sealing hole

open access: yesMeikuang Anquan, 2021
For the direct pressure measurement method, the strict requirements for the selection of test locations and the quality of the sealing lead to a lower success rate of pressure measurement, high test cost and long cycle; while the indirect pressure ...
CUI Yongjie, WANG Zhaofeng, FAN Daopeng
doaj   +1 more source

Re-examining the electronic structure of germanium: A first-principle study [PDF]

open access: yes, 2013
We report results from an efficient, robust, ab-initio method for self-consistent calculations of electronic and structural properties of Ge. Our non-relativistic calculations employed a generalized gradient approximation (GGA) potential and the linear ...
Bagayoko, D.   +4 more
core   +3 more sources

Indigestible cellulose and lignin in determining feces production and apparent digestibility in horses - doi: 10.4025/actascianimsci.v34i3.10577

open access: yesActa Scientiarum: Animal Sciences, 2012
Four crossbred geldings were used in a randomized blocks experimental design. The objective was to study the use of the internal markers indigestible cellulose (iCEL) and indigestible lignin (iLIG), obtained in situ (cattle) or in vivo (equine) to ...
Kátia de Oliveira   +5 more
doaj   +1 more source

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