Results 121 to 130 of about 34,472 (250)

Three-Dimensional Reconstruction of Space Targets Utilizing Joint Optical-and-ISAR Co-Location Observation

open access: yesRemote Sensing
With traditional three-dimensional (3-D) reconstruction methods for space targets, it is difficult to achieve 3-D structure and attitude reconstruction simultaneously. To tackle this problem, a 3-D reconstruction method for space targets is proposed, and
Wanting Zhou   +5 more
doaj   +1 more source

Effectiveness Assessment of Underwater Area Cruise Based on the ADC Method

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT Underwater area surveillance plays a crucial role in upholding national security, safeguarding strategic interests, and mitigating potential threats. Despite its significance, a notable gap persists in the availability of comprehensive models for assessing its effectiveness.
Qingwei Liang   +3 more
wiley   +1 more source

A New Method for Joint Sparse DOA Estimation

open access: yesSensors
To tackle the issue of poor accuracy in single-snapshot data processing for Direction of Arrival (DOA) estimation in passive radar systems, this paper introduces a method for judiciously leveraging multi-snapshot data.
Jinyong Hou   +4 more
doaj   +1 more source

Effects of 14 days of head-down bed rest with or without exercise, and subsequent recovery on bone turnover, density and structure in older adults. [PDF]

open access: yesExp Physiol
Abstract Bed rest accelerates bone loss and may exacerbate skeletal fragility. This study examined the effects of 14 days of head‐down tilt bed rest (HDBR) with or without exercise, and subsequent recovery, on bone turnover, density and structure in older adults. Twenty‐two healthy older adults (55–65 years) completed the HDBR protocol.
Hajj-Boutros G   +11 more
europepmc   +2 more sources

Enhancing Drone Light Shows Performances: Optimal Allocation and Trajectories for Swarm Drone Formations

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT Drone light shows (DLShows) represent a rapidly growing application of swarm robotics, creating captivating aerial displays through the synchronized flight of hundreds or thousands of unmanned aerial vehicles (UAVs) as environmentally friendly and reusable alternatives to traditional pyrotechnics.
Yunes Alqudsi
wiley   +1 more source

Review of methods used for identification of biothreat agents in environmental protection and human health aspects

open access: yesAnnals of Agricultural and Environmental Medicine, 2014
Modern threats of bioterrorism force the need to develop methods for rapid and accurate dentification of dangerous biological agents. Currently, there are many types of methods used in this field of studies that are based on immunological or genetic ...
Tomasz Mirski   +7 more
doaj  

How Tariffs Shape Trade‐Embodied Emissions in the European Union: Sectoral Heterogeneity in Final Demand

open access: yesSustainable Development, EarlyView.
ABSTRACT This paper examines the environmental implications of tariffs on greenhouse gas emissions embodied in extra‐European Union imports consumed by domestic final demand in the EU. Using a multidimensional country‐sector‐year framework, the study investigates whether tariff changes are associated with variations in trade‐embodied emissions and ...
Hugo Campos‐Romero
wiley   +1 more source

Impact of sleep insufficiency and recovery on cancer development

open access: yesSleep Research, EarlyView.
Abstract Sleep plays a critical role in overall health, and modern lifestyles, such as shift work and late‐night activities, can significantly impact sleep condition. Insufficient sleep has been associated with various adverse health outcomes, including an increased risk of tumor development.
Xiaxi Li, Chuanyuan Li, Yi Zhang
wiley   +1 more source

Government as orchestrator: Ecosystem transformation at scale and speed

open access: yesStrategic Management Journal, EarlyView.
Abstract Research Summary Grand challenges are ecosystem challenges: success depends on aligning a multilateral set of public and private sector actors whose interdependent contributions determine whether a mission is achieved. This study examines how government can orchestrate ecosystem alignment by leveraging distinctive capabilities to deliver ...
Ron Adner
wiley   +1 more source

Analyzing the Shuffling Side-Channel Countermeasure for Lattice-Based Signatures [PDF]

open access: yes, 2017
Implementation security for lattice-based cryptography is still a vastly unexplored field. At CHES 2016, the very first side-channel attack on a lattice-based signature scheme was presented.
Peter Pessl
core  

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