نتایج جستجو برای: clumped

تعداد نتایج: 1053  

2007
Michael Potthoff Karin Johst Julian Gutt Christian Wissel

Journal: :Applied Animal Behaviour Science 2021

The white-naped mangabey is an endangered and rare zoo species, yet little known concerning their welfare in captivity. assessment of should incorporate a net balance negative positive behavioural indicators. These behaviours, thus welfare, can be affected by the way food presented based on its distribution, clumped or dispersed, size, chopped whole. This study investigated effect presentation ...

Journal: :Monthly Notices of the Royal Astronomical Society 1991

2011
Wenge Ni-Meister Huilin Gao

Aims In the midand high-latitude regions, three quarters of the land surface is covered by boreal conifer forests, and snow lasts for 6–8 months of the year. Correctly modeling surface energy balance and snowmelt at midand high-latitudes has a significant influence on climate and hydrological processes. However, the heterogeneous and clumped forest structure exerts important control over the ra...

2013
SEAN J. LOYD WILLIAM M. BERELSON TIMOTHY W. LYONS DOUGLAS E. HAMMOND ARADHNA K. TRIPATI JOHN M. EILER FRANK A. CORSETTI JIANJUN LU RUCHENG WANG DONGSHENG MA WEIFENG CHEN LEI XIE RONGQING ZHANG

Carbonate concretions can form as a result of organic matter degradation within sediments. However, the ability to determine specific processes and formation temperatures of particular concretions has remained elusive. Here, we employ concentrations of carbonate-associated sulfate (CAS), SCAS and clumped isotopes (along with more traditional approaches) to characterize the nature of concretion ...

2015
John MacDonald Cedric John Jean-Pierre Girard

Clumped isotopes geothermometry was applied to two dolomitic hydrocarbon reservoirs. Results indicate that late burial dolomitization occurred at ~110°C in the Albian Pinda dolostone (offshore Angola) and ~90°C in the Mano-Meillon dolostone (Aquitaine Basin, France), and did not continue on during subsequent burial/thermal evolution to present-day conditions (150160°C). This study illustrates t...

Journal: :Annual Review of Earth and Planetary Sciences 2023

Carbonate minerals contain stable isotopes of carbon and oxygen with different masses whose abundances bond arrangement are governed by thermodynamics. The clumped isotopic value Δ i is a measure the temperature-dependent preference heavy C O to clump, or near each other, rather than light in carbonate phase. isotope thermometry uses values measured mass spectrometry (Δ 47 , 48 ) laser spectros...

Journal: :Geochimica et Cosmochimica Acta 2022

Oxygen-isotope measurements of fossil carbonates remain the most common method for paleoclimatic temperature reconstructions. A well-known limitation this approach is influence oxygen isotope composition water in which mineralization occurs, may vary significantly through space and time, often difficult to constrain precisely. Carbonate clumped-isotope thermometry an alternative applicable many...

2000
Rolf Walder Doris Folini

First attempts are made to derive astrophysical implications of the collision of clumped stellar winds from order of magnitude estimates and preliminary numerical simulations. Compared to colliding smooth winds, we find that the most significant differences occur in widely separated systems like WR 140. Clumped winds de-stabilize the wind-wind interaction zone of such systems. Highly compressed...

Journal: :Management Science 2015
Florian Zimmermann

In this paper we examine individuals’ attitudes towards the timing of information. We test a theoretical prediction that people prefer to get information “clumped together” rather than piecewise. We conduct a controlled lab experiment where subjects participate in a lottery and can choose between different resolutions of uncertainty (clumped or piecewise). In two treatments we analyze which kin...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید