Results 61 to 70 of about 107,898 (261)
DronesIn order to address the potential collision issue arising from multiple fixed-wing unmanned aerial vehicles (UAVs) intercepting targets in n-on-n and n-on-1 pursuit-evasion scenarios, we propose a collision-avoidance guidance strategy for UAVs based on ...
Xinyuan Lv, Chi Peng, Jianjun Ma
doaj +1 more source
Advanced Engineering Materials, EarlyView.A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi +3 more
wiley +1 more source
New Approach in Guidance Law Design Based on Finite-Time Partial Stability Theorem [PDF]
فصلنامه علوم و فناوری فضایی, 2015 This paper presents a novel approach in design of missile guidance law against highly maneuvering targets. This approach is based on the principles of partial stability and finite-time stability (finite-time partial stability). Also, it is shown that the
Tahere Binazadeh +2 more
doaj
Advanced Engineering Materials, EarlyView.Functionally graded metal–ceramic femoral stems are engineered through continuous UMAT‐based stiffness tailoring, eliminating discrete material interfaces while enhancing biomechanical compatibility. Low‐index power‐law gradation optimizes load transfer, reduces stress shielding, and controls implant–bone micromotion, highlighting a materials‐design ...
Rihem Nouira, Sameh Elleuch, Hanen Jrad
wiley +1 more source
Predefined-Time Convergence Terminal Sliding Mode Guidance Laws Against Angle Constraints
IEEE AccessThis paper proposes three-dimensional impact angle control guidance laws based on a predefined-time convergence sliding mode control scheme. Unlike the usual decoupling design approach, the guidance laws are derived from strong coupled engagement ...
Feng Yang, Chengyu Zhao, Ziheng Cheng
doaj +1 more source
Performance and Stability Investigation of a line of sight based Guidance System in the Presence of Measurement Noise [PDF]
فصلنامه علوم و فناوری فضایی, 2018 Usually vehicles are equipped with guidance algorithm based on line of sight (LOS) angle. In this way, some measurements like target acceleration, LOS rate, and closing velocity are provided for the guidance algorithm.
Valiollah Ghaffari, Paknoosh Karimaghaee
doaj
Advanced Engineering Materials, EarlyView.Residual adhesive after electrode loading in adhesive‐assisted resistance spot welding is quantified through a traceable experimental‐to‐digital workflow. Chromatic confocal topography provides calibrated surface‐height data, while OpenCV detects the electrode imprint and integrates adhesive height into comparable volume metrics.
Sung‐Min Wi, Jiangdong Zhao
wiley +1 more source
Experimentation on Leader-Following Formation for Fixed-Wing UAVs
Guidance, Navigation and ControlFixed-wing unmanned aerial vehicles (UAVs) are a primary focus of current UAV research. Challenges arise in their flight due to high speed and complex maneuverability.
Tongyan Wu +4 more
doaj +1 more source
A potential missile guidance law based-on chaos
CoRR, 2023 An important field of research in defense-related technology is the design of guidance laws. A guided missile is generally challenging to intercept if its trajectory becomes unpredictable. In this short communication, we have discussed a possible application of the chaos theory in developing an advanced guided missile, where the guidance law is based ...
openaire +2 more sources
Advanced Engineering Materials, EarlyView.Postbuild annealing systematically modifies the phase fractions and morphology of EB‐PBF processed Mo–9Si–8B. Quantitative microstructure–property correlations reveal how controlled phase evolution enhances high‐temperature compressive strength and creep resistance.
Christopher Schmidt +5 more
wiley +1 more source