Results 131 to 140 of about 158,681 (246)

Key Technical Fields and Future Outlooks of Space Manipulators: A Survey

open access: yesSmartBot, EarlyView.
This paper systematically reviews the technological development of space manipulators, emphasizing the unique challenges posed by space environments. It examines four areas: structural design, modeling, planning, and control, while introducing typical ground test platforms.
Gang Chen   +12 more
wiley   +1 more source

Antiferromagnetic Chains in a Monolayer of Molecular Qubits Assembled on Graphene

open access: yesSmall, EarlyView.
This work explores the deposition onto graphene of a dithiazole‐based molecular qubit, [Cu(dttt)2], (dttt− = 1,3,2‐dithiazole‐4‐thione‐5‐thiolate), under ultra‐high vacuum conditions. Analytical techniques, including STM, XPS, and X‐ray absorption, reveal the molecular arrangement and magnetic interactions, emphasizing the role of vdW interactions in ...
Fabio Santanni   +15 more
wiley   +1 more source

Expansion of gene clusters, circular orders, and the shortest Hamiltonian path problem. [PDF]

open access: yesJ Math Biol, 2018
Prohaska SJ   +7 more
europepmc   +1 more source

Synthesis and Characterization of a β‐Thio‐δ‐Diimine (BTDDI) and the Related Bimetallic Dimethylaluminium(III) Compound

open access: yesZeitschrift für anorganische und allgemeine Chemie, EarlyView.
The stepwise transformation of BODDI to BTDDI and further to the aluminium complex is accompanied by a distinct color evolution from colorless to yellow/orange (thermochromic) and finally to an intensely orange species. Thionation of the β‐oxo‐δ‐diimine (BODDI) 3 with P2S5·2Py affords the ditopic β‐thio‐δ‐diimine (BTDDI) 4. Based on 1H NMR spectroscopy
Janine Kowalke   +4 more
wiley   +1 more source

Accurate simulations of magnetic excitations in the neutron simulation package McStas

open access: yesJournal of Applied Crystallography, EarlyView.
We present an accurate algorithm for simulating neutron scattering from spin waves in the ray‐tracing package McStas.An algorithm for the accurate simulation of neutron scattering from magnetic excitations has been developed and implemented as new component for the neutron ray‐tracing software McStas.
Silas B. Schack   +3 more
wiley   +1 more source

The effect of nearby listings on house sale prices in Sydney: A spatio‐temporal regularization approach

open access: yesReal Estate Economics, EarlyView.
Abstract We estimate the price impact of very nearby concurrently listed properties in the Sydney housing market and assess their competition effects. We apply a hedonic model with spatiotemporal effects regularized via a graph Laplacian prior at the month‐by‐SA2 regional level to seven SA4 subregions of metropolitan Sydney. The model structure enables
Willem P. Sijp, Mengheng Li
wiley   +1 more source

Feynman path integrals for discrete-variable systems: Walks on Hamiltonian graphs

open access: yesPhysical Review Research
We propose a natural, parameter-free, discrete-variable formulation of Feynman path integrals. We show that for discrete-variable quantum systems, Feynman path integrals take the form of walks on the graph whose weighted adjacency matrix is the ...
Amir Kalev, Itay Hen
doaj   +1 more source

Dynamic Pricing With Recommendation and Consumer Feedback

open access: yesThe RAND Journal of Economics, EarlyView.
ABSTRACT A long‐lived seller sells a new product of unknown value by offering prices and recommendations to short‐lived consumers in continuous time. The seller receives consumer feedback about the product at a rate that increases with the instantaneous sales volume.
Wenji Xu, Shuoguang Yang
wiley   +1 more source

Trait coevolution and causal inference using generalized dynamic phylogenetic models

open access: yesMethods in Ecology and Evolution, EarlyView.
Abstract Phylogenetic comparative methods are widely used to study trait coevolution across biological and cultural domains. The most common methods are phylogenetic generalized linear (mixed) models, phylogenetic path analysis, Pagel's ‘discrete’ method and Ornstein–Uhlenbeck models. While some frameworks like generalized linear mixed models are quite
Erik J. Ringen   +3 more
wiley   +1 more source

Effects of postural intervention using a risshin chair on physical posture, class time perception, and subjective well‐being in junior high school students

open access: yesBritish Journal of Educational Psychology, EarlyView.
Abstract Background Research based on embodied cognition has demonstrated that physical posture, particularly an upright seated posture, can influence emotions and cognition. However, although students spend most of the day sitting in classrooms, intervention research on upright seated postures suitable for learning environments is limited.
Yusuke Murakami   +2 more
wiley   +1 more source

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