Results 61 to 70 of about 1,128,948 (299)

Using artificial neural networks to identify and optimise the key parameters affecting geometry of a GMAW fillet weld [PDF]

, 2015
Control of Gas Metal Arc Welding (GMAW) parameters is key to maintaining good quality and consistent fillet weld geometry. The external geometry of the fillet weld can be easily measured, however the internal geometry (i.e.
Cairns, Jonathan, Galloway, Alexander, McPherson, Norman   +2 more
core  

Predictive Control of a Munition Using Low-Speed Linear Theory

, 2008
Modified linear theory provides reasonable impact predictions at high speeds. However, for typical small UAS mission speeds, less than 20-m/s impact errors were substantial due to large angles of attack and pitch rates.
Slegers, Nathan
core   +1 more source

Peroxidasin enables melanoma immune escape by inhibiting natural killer cell cytotoxicity

Molecular Oncology, EarlyView.
Peroxidasin (PXDN) is secreted by melanoma cells and binds the NK cell receptor NKG2D, thereby suppressing NK cell activation and cytotoxicity. PXDN depletion restores NKG2D signaling and enables effective NK cell–mediated melanoma killing. These findings identify PXDN as a previously unrecognized immune evasion factor and a potential target to improve
Hsu‐Min Sung, David Bickel, Lena C. M. Krause, Daria Ezeriņa, Christian Ickes, Julian Wojtachnia, Christine S. Gibhardt, Magdalena Shumanska, Khadija Wahni, Andrea Paluschkiwitz, Julia Malo Pueyo, Ekaterina Baranova, Wim Vranken, Hedwig Stanisz, Ioana Stejerean‐Todoran, Michael P. Schön, Joris Messens, Ivan Bogeski   +17 more
wiley   +1 more source

A New Impact Time and Angle Control Guidance Law for Stationary and Nonmaneuvering Targets

International Journal of Aerospace Engineering, 2016
A guidance problem for impact time and angle control applicable to cooperative attack is considered based on the sliding mode control. In order to satisfy the impact angle constraint, a line-of-sight rate polynomial function is introduced with four ...
Zhe Yang, Hui Wang, Defu Lin, Luyao Zang
doaj   +1 more source

Control-Relevant Modeling, Analysis, and Design for Scramjet-Powered Hypersonic Vehicles [PDF]

, 2009
Within this paper, control-relevant vehicle design concepts are examined using a widely used 3 DOF (plus flexibility) nonlinear model for the longitudinal dynamics of a generic carrot-shaped scramjet powered hypersonic vehicle.
Benavides, Jose, Dickeson, Jeffrey J., Kelkar, Atul, Rodriguez, Armando A., Soloway, Don, Sridharan, Srikanth, Vogel, Jerald M.   +6 more
core   +1 more source

Integrated Guidance and Control Law with Impact Angle Constraint [PDF]

Journal of the Korean Society for Aeronautical & Space Sciences, 2011
The concept of the IGC(Integrated Guidance and Control) has been introduced to overcome the performance limit of the SGC(Separated Guidance and Control) loop. A new type of IGC with impact angle constraint has been proposed in this paper. Angle of attack, pitch angle rate, pitch angle and line of sight angle are considered as state variables.
Joong-Sup Yun, Woo-Sung Park, Chang-Kyung Ryoo   +2 more
openaire   +1 more source

TRAIL‐PEG‐Apt‐PLGA nanosystem as an aptamer‐targeted drug delivery system potential for triple‐negative breast cancer therapy using in vivo mouse model

Molecular Oncology, EarlyView.
Aptamers are used both therapeutically and as targeting agents in cancer treatment. We developed an aptamer‐targeted PLGA–TRAIL nanosystem that exhibited superior therapeutic efficacy in NOD/SCID breast cancer models. This nanosystem represents a novel biotechnological drug candidate for suppressing resistance development in breast cancer.
Gulen Melike Demirbolat, Aslihan Kucuk, Omer Erdogan, Samed Ozer, Bensu Kozan, Tugba Cuceli, Erkan Gumus, Evrim Cevik, Ozge Cevik   +8 more
wiley   +1 more source

Three-Dimensional Impact Angle Constrained Partial Integrated Guidance and Control With Finite-Time Convergence

IEEE Access, 2018
A 3-D impact angle constrained partial integrated guidance and control design with finite-time convergence is developed for a surface-to-air skid-to-turn missile intercepting a head-on maneuvering target.
Chao Lai, Weihong Wang, Zhenghua Liu, Tingting Liang, Shenao Yan   +4 more
doaj   +1 more source

Design of finite time cooperative mid-course guidance law for unmanned target drone aircrafts

Xibei Gongye Daxue Xuebao, 2023
For cooperative mid-course guidance problem of multiple unmanned target drone aircrafts(UTDA), a novel cooperative guidance law with impact angle constraints is proposed in this study.
GUO Xiaowen, FAN Yonghua, ZHANG Minghuan, YAN Jie, WU Baoyuan   +4 more
doaj   +1 more source

Impact of a senior research thesis on students' perceptions of scientific inquiry in distinct student populations

FEBS Open Bio, EarlyView.
This study addressed how a senior research thesis is perceived by undergraduate students. It assessed students' perception of research skills, epistemological beliefs, and career goals in Biochemistry (science) and BDC (science‐business) students. Completing a thesis improved confidence in research skills, resilience, scientific identity, closed gender‐
Celeste Suart, Haley L. Zubyk, Michelle Ogrodnik, Caitlin E. Mullarkey, Felicia Vulcu   +4 more
wiley   +1 more source