Results 171 to 180 of about 463,070 (411)
Optimized Bucket Wheel Design for Asteroid Excavation [PDF]
arXiv, 2017 Current spacecraft need to launch with all of their required fuel for travel. This limits the system performance, payload capacity, and mission flexibility. One compelling alternative is to perform In-Situ Resource Utilization (ISRU) by extracting fuel from small bodies in local space such as asteroids or small satellites. Compared to the Moon or Mars,
arxiv
Field Drawing of East Profile of Unit F from Burns (8BR85) [PDF]
, 2018 This document is a field map drawing of the east profile of test unit F.
University of Central Florida Brevard County Archaeology
core +1 more source
Advanced Science, EarlyView.Compared with those on the pTi surface, macrophages on the TNTs surface present reduced myosin II contractility, which facilitates the nuclear translocation of the UTX. This reduction decreases the enrichment of the repressive H3K27me3 histone modification at the Abca1 gene locus, which promotes the transcription and protein expression of ABCA1 ...
Hengji Jia +8 more
wiley +1 more source
Saarvienin A—A Novel Glycopeptide with Potent Activity against Drug‐Resistant Bacteria
Angewandte Chemie, EarlyView.A structurally distinct glycopeptide, saarvienin A, represents a new family of glycopeptide antibiotics consisting of five sugar/aminosugar units connected to a halogenated peptide core. Saarvienin A overcomes vancomycin resistance and shows strong activity against drug‐resistant Gram‐positive bacteria, in particular, high‐priority pathogens such as ...
Amninder Kaur +7 more
wiley +2 more sources
I.—Excavations At Sparta, 1907: § 1.—The Season's Work [PDF]
, 1907 Richard Dawkins
openalex +1 more source
Compliant Robotics in Space: A Prospective Review of Soft and Deformable Systems for Space Missions
Advanced Intelligent Systems, EarlyView.Compliant robots are increasingly becoming integral to space exploration due to their adaptability, flexibility, and lightweight design. This article reviews categories such as soft, reconfigurable, and hyper‐redundant robots and their evolving role in enhancing space missions.
Hamed Rahimi Nohooji, Holger Voos
wiley +1 more source
Angewandte Chemie, EarlyView.Crystallinity engineering is applied to carbon microspheres for fabricating transition metal single atoms confined in hydrophilic graphitic nanochannels by precisely etching the amorphous carbon realm. This fine‐tuned nanoenvironment enhances tri‐phase mass transfer and optimizes O3 nonradical activation thermodynamics by inducing the bidental “side‐on”
Ya Liu +10 more
wiley +2 more sources
Mixture model of pottery distributions from Lake Chad Basin archaeological sites reveals ancient segregation patterns [PDF]
arXiv, 2015 We present a new statistical approach to analyzing an extremely common archaeological data type -- potsherds -- that infers the structure of cultural relationships across a set of excavations. This method, applied to data from a set of complex, culturally heterogeneous sites around the Mandara mountains in the Lake Chad Basin, articulates currently ...
arxiv