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Research on Cooperative Guidance Law of Multi-Missile Based on Trajectory Super-Real Time Simulation [PDF]

open access: yesHangkong bingqi, 2021
It is very difficult to conduct time cooperation guidance of multi-missile when the velocity of missile is uncontrollable. Based on the trajectory super real-time simulation method, which can gives out time-to-go exactly as well as future trajectory ...
Zhang Peng, Lu Hao, Shen Xin
doaj   +1 more source

The Impact of DNS Insecurity on Time [PDF]

open access: yes2020 50th Annual IEEE/IFIP International Conference on Dependable Systems and Networks (DSN), 2020
We demonstrate the first practical off-path time shifting attacks against NTP as well as against Man-in-the-Middle (MitM) secure Chronos-enhanced NTP. Our attacks exploit the insecurity of DNS allowing us to redirect the NTP clients to attacker controlled servers.
Philipp Jeitner   +2 more
openaire   +2 more sources

A Novel Low-Cost Machine for Evaluating Helmet Performance in Bike Accident Scenarios

open access: yesEngineering Proceedings, 2023
The increasing mortality rate in bike-related road accidents due to head injuries necessitates stronger helmets. This paper presents a cost-effective machine setup to evaluate helmet behavior during impacts.
Syed Mujahid Abbas   +6 more
doaj   +1 more source

Bezier-curve Navigation Guidance for Impact Time and Angle Control [PDF]

open access: yesINCAS Bulletin, 2018
This paper addresses a novel impact time and angle control guidance law using a Bézier curve. The 2nd order Bézier curve consists of one control point and two boundary points; initial point P0, middle point P1 and end point P2.
Gun-Hee MOON   +2 more
doaj   +1 more source

On the Impact of Time-Synchronization in Molecular Timing Channels [PDF]

open access: yes2016 IEEE Global Communications Conference (GLOBECOM), 2016
Accepted at GLOBECOM ...
Nariman Farsad   +5 more
openaire   +2 more sources

Multi-Constrained Geometric Guidance Law with a Data-Driven Method

open access: yesDrones, 2023
A data-driven geometric guidance method is proposed for the multi-constrained guidance problem of variable-velocity unmanned aerial vehicles (UAVs). Firstly, a two-phase flight trajectory based on a log-aesthetic space curve (LASC) is designed.
Xinghui Yan   +4 more
doaj   +1 more source

Aggregate Impacts of a Gift of Time [PDF]

open access: yesAmerican Economic Review, 2011
How would people spend additional time if confronted by permanent declines in market work? We examine the impacts of cuts in legislated standard hours which raised employers' overtime costs in Japan around 1990 and in Korea in the early 2000s. Using time-diaries from before and after, we show the shocks were effective -- per-capita hours of market ...
Lee, Jungmin   +2 more
openaire   +5 more sources

Experimental Study on the Impact Resistance of Steel Fiber Reinforced All-Lightweight Concrete Beams under Single and Hybrid Mixing Conditions

open access: yesBuildings, 2023
An impact action can cause local, or even overall, damage to structural components. This paper investigates the effect of flat and wavy steel fibers on the mechanical impact resistance of all-lightweight concrete beams under single and mixed conditions ...
Xiuli Wang, Qinyuan Wu, Wenlong Chen
doaj   +1 more source

Adaptive Sliding Mode Guidance With Impact Time and Angle Constraints

open access: yesIEEE Access, 2020
Based on adaptive sliding mode control method, this paper considers the interception problem to deal with both impact time and angle constraints. The stability and convergence characteristic of proposed guidance law are analyzed.
Xiaodong Liu, Guofei Li
doaj   +1 more source

Time Series Impact Through Topic Modeling

open access: yesIEEE Access, 2022
A time-series of numerical data and a sequence of time-ordered documents are often correlated. This paper aims at modeling the impact that the underlying themes discussed in the text data have on the time series.
Julian Cendrero   +3 more
doaj   +1 more source

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