Results 111 to 120 of about 843,251 (286)
Journal of the Association for Information Science and Technology, EarlyView.Abstract ChatGPT and related technologies have revived an old issue in information science (IS) concerning information retrieval (IR) versus document retrieval. Since 1950, the term IR has primarily been used as a misnomer for document retrieval. This problematic terminology reflects a desire to go beyond documents and provide, in response to user ...
Birger Hjørland
wiley +1 more source
Effect of limb darkening on earth radiation incident on a spherical satellite [PDF]
The thermal radiation from the earth incident on a spherical satellite depends on the angular distribution of earth-emitted radiation. An analysis is presented of this dependency, and calculated results are given, based on a published limb-darkening ...
Katzoff, S., Smith, G. L.
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Adaptive mixing formation control of multiquadrotor unmanned aerial vehicle systems
Asian Journal of Control, EarlyView.Abstract This paper presents a distributed adaptive mixing control (AMC) design for formation maintenance of systems of multiquadrotor UAVs (q‐UAVs) during commanded path‐tracking maneuvers. The proposed formation control scheme has a two‐level structure. The high level defines the desired trajectories for rigid and persistent formation acquisition and
Nasrettin Köksal +2 more
wiley +1 more source
Gaseous exhaust emissions from a JT8D-109 turbofan engine at simulated cruise flight conditions [PDF]
Gaseous emissions from a JT8D-109 turbofan engine were measured in an altitude facility at four simulated cruise flight conditions: Mach 0.8 at altitudes of 9.1, 10, 7, and 12.2 km and Mach 0.9 at 10.7 km.
Diehl, L. A., Holdeman, J. D.
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Discrete local altitude sensing device Patent [PDF]
, 1967 Device for use in descending spacecraft as altitude sensor for actuating deceleration ...
Campbell, C. C., Jr. +2 more
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Advancing design strategies in smart stimulus‐responsive liposomes for drug release and nanomedicine
BMEMat, EarlyView.Schematic illustration of stimulus‐responsive liposomes designed for controlled drug release and nanomedicine. The innermost circle represents different liposomal structures, including unilamellar, multilamellar, and multivesicular liposomes. The middle layer illustrates the responsive phospholipid components.
Yuchen Guo +9 more
wiley +1 more source
Biological Diversity, EarlyView.Paphiopedilum purpuratum Mediates Adaptation via a Dual‐Fungal Strategy: Confronting a physiological trade‐off (↑seed set vs. ↓photosynthesis), Paphiopedilum purpuratum restructures its root microbiome. Mycorrhizal fungi stabilize into a resilient core network, whereas non‐mycorrhizal fungi shift to a dynamic beneficial periphery.
Yong Tan +4 more
wiley +1 more source
Calculated photoelectron pitch angle and energy spectra [PDF]
Calculations of the steady-state photoelectron energy and angular distribution in the altitude region between 120 and 1000 km are presented. The distribution is found to be isotropic at all altitudes below 250 km, while above this altitude anisotropies ...
Bowhill, S. A., Mantas, G. P.
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Biological Reviews, EarlyView.ABSTRACT Tick‐borne filarial nematodes are a complex and understudied group of parasites that rely on ticks for transmission in vertebrates. This review examines how intrinsic and extrinsic factors may influence the successful transmission of filarial nematodes in tick vectors, drawing insights from extensively studied haematophagous dipteran vector ...
Oluwaseun D. Ajileye +4 more
wiley +1 more source
High altitude polycythemia and its maladaptive mechanisms: an updated review
Frontiers in MedicineHigh altitude polycythemia is a maladaptation of highlanders exposed to hypoxic environment, leading to high blood viscosity and severe cardiorespiratory dysfunction.
Shijie Tang +14 more
doaj +1 more source