Results 211 to 220 of about 124,946 (301)

Geometric Direct Minimization for Low-Spin Restricted Open-Shell Hartree-Fock Theory. [PDF]

J Chem Theory Comput
Burton HGA.
europepmc   +1 more source

From Populations to Programming Variables: Post‐Activation Performance Enhancement Following Isometric Contractions on Muscular Strength and Power—A Systematic Review and Meta‐Analysis

European Journal of Sport Science, Volume 26, Issue 6, June 2026.
This systematic review and three‐level meta‐analysis examined the acute effects of isometric contractions as conditioning activities for post‐activation performance enhancement. The findings suggest that isometric contractions may produce a small but significant improvement in vertical jump height, whereas the evidence for muscular strength and power ...
Zhijian He, Zhipeng Xue, Lijun Qiang, Zepeng Lu, Qiushi Wang, Ruinan Zhang, Yilin Xu, Ji Tu, Dapeng Bao, Junhong Zhou   +9 more
wiley   +1 more source

Gauss-Newton inversion of ground transient electromagnetic data using COMSOL multiphysics. [PDF]

Sci Rep
Li F, Wang P, Lu K.
europepmc   +1 more source

Design of Two‐Segment Constant‐Force Compliant Mechanisms via Stiffness‐Matched Parallel Integration

Engineering Reports, Volume 8, Issue 6, June 2026.
This work presents a novel design for two‐segment constant‐force compliant mechanisms that achieve dual‐stage zero‐stiffness via stiffness‐matched parallel integration. Experimental results demonstrate constant forces of 4 N and 20 N with less than 5% variation, enabling extended operational ranges for precision applications such as robotic ...
Junfeng Hu, Xiwei Jiang
wiley   +1 more source

Quasi-modified-Newton method-based selective harmonic elimination in cascaded H bridge inverters. [PDF]

Sci Rep
Saif B, Masood U, Sarwar A, Ahmad S, Huang LY, Liu HD.   +5 more
europepmc   +1 more source

Computational Rheo‐Hydrodynamic Analysis of Non‐Newtonian Blood Flow Through a Tilted Ellipsoidal Stenosed Vascular Segment

Engineering Reports, Volume 8, Issue 6, June 2026.
Non‐Newtonian blood flow through multiple tilted ellipsoidal stenoses is numerically investigated using the DeKee‐Turcotte‐Papanastasiou model. The results reveal asymmetric velocity fields, elevated wall shear stress, significant pressure drops, and shear‐dependent thermal effects, highlighting the critical hemodynamic risks associated with eccentric ...
Azad Hussain, Huma Naz
wiley   +1 more source

Compact wearable microstrip antenna design using hybrid quasi-Newton and Taguchi optimization. [PDF]

Sci Rep
Tiwari A, Khurshid AA, Sharma K.
europepmc   +1 more source

Exact Solutions and Nonlinear Dynamical Behavior in a Navier‐Stokes‐Type Model for Elastic Cylindrical Vessels: An Analytical and Computational Approach

Engineering Reports, Volume 8, Issue 6, June 2026.
This study investigates a nonlinear Navier‐Stokes‐type model for elastic cylindrical vessels. Exact solutions are derived via the Bäcklund transformation and the ϕ6$$ {\phi}^6 $$‐expansion method, and dynamical behaviors are analyzed using bifurcation and chaos tools, revealing diverse wave structures and parameter‐dependent propagation characteristics.
Sheikh Zain Majid, Fatma Nur Kaya Sağlam, Mohammad Safi Ullah   +2 more
wiley   +1 more source

Numerical Analysis of Gravel Packing in Water Control Completion for Horizontal Wells: Mathematical Characterization and Experimental Validation. [PDF]

ACS Omega
Nie S, Gao S, Li H, Yin D.
europepmc   +1 more source

Quasi-Newton method with subspace gradients

Journal of Global Optimization
Taisei Miyaishi, Ryota Nozawa, Pierre-Louis Poirion, Akiko Takeda   +3 more
openaire   +1 more source