Results 151 to 160 of about 51,229 (231)
Cross-Scale Modeling of CFRP Stacking Sequence in Filament-Wound Composite Pressure Vessels: In-Plane and Inter-Layer Homogenization Analysis. [PDF]
Wang Z +6 more
europepmc +1 more source
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Mathematical Analysis and Simulations of a Cancer Model With Interleukins and Delayed Immunotherapy
ABSTRACT A new system of delayed differential equations for tumor‐immune system interactions is proposed and studied. The system describes the interactions between tumor cells and the immune system at the most aggressive phase of cancer, where tumor cells have developed mechanisms from earlier stages to evade immune responses.
Laid Boudjellal +2 more
wiley +1 more source
Mixed Control Strategy for a Class of Sector-Bounded Nonlinear Systems. [PDF]
Stoica AM, Yaesh I.
europepmc +1 more source
Consistent Quadratic Phase Formation in 3D Fast Spin Echo Using Frequency‐Modulated RF Pulses
ABSTRACT Purpose Frequency‐modulated (FM) RF pulses achieve broadband excitation with low RF peak power, which is required in MRI with inhomogeneous magnetic fields. However, the quadratic phase generated with FM pulses makes it difficult to use them in fast spin echo (FSE), because even and odd refocused echoes have different spatial phase profiles ...
Naoharu Kobayashi, Michael Garwood
wiley +1 more source
Magnetic Tunneling Between Disc-Shaped Obstacles. [PDF]
Fournais S, Morin L.
europepmc +1 more source
ABSTRACT This study explores the nonlinear dynamics associated with a passive dynamic walker (PDW), focusing on the bifurcation and stability insights derived from spring and damper mechanics. PDWs, which rely on gravity for stable locomotion without active control, exhibit a rich spectrum of behaviors, from periodic to chaotic motion.
Zhongqu Xie +8 more
wiley +1 more source
Adaptive dynamics of diverging fitness optima. [PDF]
Duong MH, Spill F, Van Rensburg B.
europepmc +1 more source
ABSTRACT This paper examines the impacts of Volume‐Based Procurement (VBP) policies on pharmaceutical supply chains, with a focus on the strategic behaviors of manufacturers. VBP aims to reduce costs and stabilize supplies by centralizing procurement through competition based on volumes and prices.
Nani Zhou, Tong Wang, Guohua Wan
wiley +1 more source
Refinements and Extensions of Ziv's Model of Perfect Secrecy for Individual Sequences. [PDF]
Merhav N.
europepmc +1 more source

