نتایج جستجو برای: ceres

تعداد نتایج: 1179  

Journal: :CoRR 2015
David Cerna Alexander Leitsch

The schematic CERES method [?] is a recently developed method of cut elimination for proof schemata, that is a sequence of proofs with a recursive construction. Proof schemata can be thought of as a way to circumvent adding an induction rule to the LK-calculus. In this work, we formalize a schematic version of the infinitary pigeonhole principle, which we call the Non-injectivity Assertion sche...

2017
Harry Y. MCSWEEN Joshua P. EMERY Andrew S. RIVKIN Michael J. TOPLIS Julie C. CASTILLO-ROGEZ Thomas H. PRETTYMAN M. Cristina DE SANCTIS Carle M. PIETERS Carol A. RAYMOND Christopher T. RUSSELL

The mineralogy and geochemistry of Ceres, as constrained by Dawn’s instruments, are broadly consistent with a carbonaceous chondrite (CM/CI) bulk composition. Differences explainable by Ceres’s more advanced alteration include the formation of Mgrich serpentine and ammoniated clay; a greater proportion of carbonate and lesser organic matter; amounts of magnetite, sulfide, and carbon that could ...

2014
S. J. Desch J. C. Castillo-Rogez

Introduction: The main-belt object Ceres (radius≈475 km, density≈2100 kg m-3 , semi-major axis 2.7 AU), is an exciting place to explore planetary hab-itability. Abundant volatiles could have shaped Ceres in a way analogous to that suspected on icy moons. Hydrothermalism: Ceres' surface seems blanketed by products of the interaction between silicate rock and liquid water, including carbonates [1...

2003
Urban Bilstrup Magnus Jonsson Bertil Svensson

In the major reorganisation that took place at Halmstad University during 1999-2000, the new School of Information Science, Computer and Electrical Engineering (IDE) was formed. The School of IDE is divided into five laboratories; Computing and Communication (CC), Electronics and Physics (EF), Intelligent Systems (IS), Mathematics (MA), and Man and Information technology (MI). The division into...

Journal: :Elementa 2022

Accurate multidecadal radiative flux records are vital to understand Arctic amplification and constrain climate model uncertainties. Uncertainty in the NASA Clouds Earth’s Radiant Energy System (CERES)-derived irradiances is larger over sea ice than any other surface type comes from several sources. The year-long Multidisciplinary drifting Observatory for Study of Climate (MOSAiC) expedition ce...

Journal: :Atmospheric Research 2021

Atmospheric downward longwave radiation (DLR) is a key component of the surface energy budget in Earth system. Satellite retrievals and atmospheric reanalysis estimates are two typical approaches to obtaining spatio-temporally continuous DLR product. In this study, we evaluated product from latest ERA5 well-known Clouds Earth's Radiant Energy System (CERES) satellite retrievals, against high-qu...

Journal: :تحقیقات آب و خاک ایران 0
غزاله ضیایی کارشناس ارشد آبیاری و زهکشی دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران، گروه مهندسی آب حسین بابازاده استادیار دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران، گروه مهندسی آب فریبرز عباسی استاد پژوهشی مرکز تحقیقات فنی و مهندسی کشاورزی کرج فریدون کاوه دانشیار دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران، گروه مهندسی آب

importance of fresh water in agriculture along with the essential demand of the growing population for food, indicates an extreme necessity of the optimum use of water. to this end, plant growth simulation models have been introduced in agricultural sciences to reach maximum yields in varying climates. variations in the of developed models cause difficulties for the unprofessional users. the aq...

2005
Jian-Yang Li Michael F. A’Hearn Lucy A. McFadden Anne J. Verbiscer

Title of dissertation: LIGHT SCATTERING PROPERTIES OF ASTEROIDS AND COMETARY NUCLEI Jian-Yang Li, Doctor of Philosophy, 2005 Dissertation directed by: Professor Michael F. A’Hearn Associate Research Professor Lucy A. McFadden Department of Astronomy The photometric properties of asteroids and cometary nuclei, bodies important for understanding the origin of the Solar System, are controlled by t...

2006
Sundar A. Christopher Pawan Gupta Falguni Patadia

Fusing MODIS, MISR and CERES Satellite Data for Aerosol Research Sundar A. Christopher, Pawan Gupta and Falguni Patadia The University of Alabama in Huntsville Huntsville, AL 35805 [email protected] Abstract Combining data sets from multiple satellite sensors is a powerful method for studying earth-atmosphere problems. By fusing data, we can utilize the strengths of the individual instrument...

2004
Sundar A. Christopher Jianglong Zhang

[1] Using the Single Scanner Footprint (SSF) data that combines the multi-spectral Moderate Resolution Imaging Spectroradiometer (MODIS) cloud and aerosol products with the Clouds and the Earth’s Radiant Energy System (CERES) top of atmosphere broadband radiative fluxes, we first provide observational estimates of the instantaneous cloud-free shortwave aerosol radiative forcing (SWARF) over the...

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