Results 11 to 20 of about 3,555,062 (324)

Changes in Storage and the Stratification Ratio of Soil Organic Carbon under Different Vegetation Types in Northeastern China

open access: yesAgronomy, 2020
The depth distribution of soil organic carbon (SOC) in a soil profile is important to examine the effects of different treatments on SOC sequestration. This study was conducted to determine the effects of different vegetation types on the concentration ...
Pujia Yu   +4 more
doaj   +1 more source

Separation of Sr, Nd, and U from Geological Samples Using Tandem Resin Column

open access: yesYankuang ceshi, 2023
BACKGROUND Uranium-series nuclides are one of the three major radioactive decay systems, which are suitable for studying various geological processes at different time scales. In addition, 87Sr/86Sr and 143Nd/144Nd isotopes (Sr-Nd isotopes for short) are
LUO Zhenghua   +7 more
doaj   +1 more source

The Market Functioning of Polish Higher Education Institutions in the Context of the Implementation of the Concept of Social Responsibility

open access: yesMarketing of Scientific and Research Organizations, 2021
The evolution in the sector set new tasks for Higher Education Institutions (HEIs)*, where — in addition to educational activity — their cooperation with other entities is assumed, which will make it possible to take up contemporary challenges.
Pabian Angelika M.
doaj   +1 more source

Mantid - Data Analysis and Visualization Package for Neutron Scattering and $μ SR$ Experiments [PDF]

open access: yes, 2014
The Mantid framework is a software solution developed for the analysis and visualization of neutron scattering and muon spin measurements. The framework is jointly developed by software engineers and scientists at the ISIS Neutron and Muon Facility and ...
O. Arnold   +29 more
semanticscholar   +1 more source

Development of Surface Roughness and Mechanical Properties of PMMA Nanocomposites by Blending with Polymeric Materials [PDF]

open access: yesEngineering and Technology Journal, 2019
This work aims to a development of mechanical properties of PMMA that is utilized in denture material, by using two types of polymers; blends (PMMA:2%NR) and (PMMA:2%SR) as a matrix materials strengthen with natural nanoparticles from the pomegranate ...
Hussein Sadeq, Sihama Salih, Auda Braihi
doaj   +1 more source

SRS [PDF]

open access: yesProceedings of the VLDB Endowment, 2014
Nearest neighbor searches in high-dimensional space have many important applications in domains such as data mining, and multimedia databases. The problem is challenging due to the phenomenon called "curse of dimensionality". An alternative solution is to consider algorithms that returns a c -approximate nearest ...
Yifang Sun   +4 more
openaire   +2 more sources

THE MEAN LIGHT CURVES OF THE MIRA-TYPE STARS IN THE H- AND K-BANDS

open access: yesOdessa Astronomical Publications, 2016
. For nine Mira-type stars (o Cet, R Leo, S Car, U Her, X Oph, R Aql, RR Aql, S Ori, S Scl,) and one semi-regular star (L2 Pup), the mean light curves have been obtained.
L. S. Kudashkina
doaj   +1 more source

The Introduction of Spending Review into the Budget Process in Germany [PDF]

open access: yesНаучно-аналитический вестник Института Европы РАН, 2019
The article describes Germany’s experience of the new budget technology, i.e. the spending review (SR) procedure. By 2019, it became a permanent and mandatory part of the budget preparation.
Maria Gracheva
doaj   +1 more source

Evidence of hydrological control of Sr behavior in stream water (Strengbach catchment, Vosges mountains, France) [PDF]

open access: yes, 2002
Strontium and particularly 87Sr/86Sr ratios in stream water have often been used to calculate weathering rates in catchments. Nevertheless, in the literature, discharge variation effects on the geochemical behavior of Sr are often omitted or considered ...
Amiotte-Suchet   +48 more
core   +2 more sources

87Sr/86Sr chemostratigraphy of Neoproterozoic Dalradian limestones of Scotland and Ireland: constraints on depositional ages and time scales [PDF]

open access: yes, 2004
New calcite <sup>87</sup>Sr/<sup>86</sup>Sr data for 47 limestones from the metamorphosed and deformed Neoproterozoic-Cambrian Dalradian Supergroup of Scotland and Ireland are used to identify secular trends in seawater <sup>
Ellam, R.M.   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy