Results 201 to 210 of about 6,266 (261)

The mechanism of labor in nonhuman primates: A look inside

The Anatomical Record, EarlyView.
Abstract While in humans, the flexed position of the fetus and its rotating course down the birth canal are well documented, in other primates the mechanism of labor is unknown. Despite the lack of comparative data, it is commonly assumed that the human obstetric mechanism is unique, and anthropologists have disputed when and why the transition to the ...
Melissa K. Stoller
wiley   +1 more source

Enhancing variable frequency drive efficiency using fractional hybrid Particle Swarm Optimization and comprehensive thermal management. [PDF]

Sci Rep
Habib K, Wadood A, Khan S, Khan BM, Park H, Kang BO, Güven AF.   +6 more
europepmc   +1 more source

Variable grouping patterns in primates: A test of the better competitor hypothesis in male Verreaux's sifaka (Propithecus verreauxi)

The Anatomical Record, EarlyView.
Abstract Intraspecific variation in social organization (IVSO) within primate populations can arise due to male mating competition. Verreaux's sifaka (Propithecus verreauxi) populations exhibit both single‐male and multi‐male groups, providing an opportunity to examine the relationship between male competitive ability and social organization.
Lemeng Li, Stacey R. Tecot, Rebecca J. Lewis   +2 more
wiley   +1 more source

Robust sensorless control of high speed PMSM drives under low carrier ratios and parameter uncertainties. [PDF]

Sci Rep
Lin Z, Jin S, Wang H, Zhang F.
europepmc   +1 more source

Strongly‐Anchored Ionomer‐Free Anode Catalyst Layer Fabricated via Joule Heating Achieves Efficient Electron/Mass Transfer for Acidic Water Electrolysis

Carbon Energy, EarlyView.
An ionomer‐free anode catalyst layer is fabricated via rapid Joule heating, partially embedding IrO2 nanoparticles into the membrane to form a robust, anchored interface. This architecture eliminates ionomer‐induced poisoning and mass‐transport barriers, enabling efficient water‐mediated proton transport and electronic connectivity.
Yuyang Wang, Shuheng Zhang, Haokai Xu, Xianqing Zhu, Jian Huang, Liang Zhang, Dingding Ye, Jun Li, Xun Zhu, Qiang Liao   +9 more
wiley   +1 more source

Pose Stabilization Control for Base of Combined System Using Feedforward Compensation PD Control During Target Satellite Transposition. [PDF]

Sensors (Basel)
Hu Z, Yang J, Xu W, Chen H, Xu L, Meng D.   +5 more
europepmc   +1 more source

Robust PMSM Speed Control for EV Traction Drives: A FOPSO-Optimized Hybrid Fuzzy Fractional-Order PI Strategy. [PDF]

Sensors (Basel)
Chiu CC, Mao WL, Tai FC.
europepmc   +1 more source

Multi-constraint model predictive control of flexible joint drive system based on unknown state estimator and constraint adaptive hierarchical planning. [PDF]

Sci Rep
Song C, Du Q, Guo X.
europepmc   +1 more source

Perching of quadrotor using adaptive second-order continuous control in the presence of uncertainties. [PDF]

Sci Rep
Gupta S, Nandanwar A, Dhar NK, Behera L, Samanta S.   +4 more
europepmc   +1 more source

Smart exoskeleton-assisted rehabilitation after fracture surgery: closed-loop control, personalized load management, and integrated telemonitoring. [PDF]

Front Bioeng Biotechnol
Pei T, Qu Z, Lei Y, Gao Y, Xu T, Yang W, Wen Q, Liu Q.   +7 more
europepmc   +1 more source