Results 51 to 60 of about 23,503,020 (327)

Modulating Two‐Photon Absorption in a Pyrene‐Based MOF Series: An In‐Depth Investigation of Structure–Property Relationships

open access: yesAdvanced Functional Materials, EarlyView.
This study investigates H4TBAPy‐based metal–organic frameworks (MOFs) ‐ NU‐1000, NU‐901, SrTBAPy, and BaTBAPy ‐ for multiphoton absorption (MPA) performance. It observes topology‐dependent variations in the 2PA cross‐section, with BaTBAPy exhibiting the highest activity.
Simon N. Deger   +10 more
wiley   +1 more source

Precision multi-degree-of-freedom laser therapy system for excision of eschar over burn wound

open access: yes工程科学学报, 2019
Early escharotomy in cases of severely burned patients can reduce infection and shorten the course of treatment. From the treatment effect, the quality of escharotomy operation is critical to the postoperative recovery of burn patients.
WANG Guang-jian   +4 more
doaj   +1 more source

Evaluation of a multibody kinematics optimization method for three-dimensional canine pelvic limb gait analysis

open access: yesBMC Veterinary Research, 2020
Background Skin marker-based three-dimensional kinematic gait analysis were commonly used to assess the functional performance and movement biomechanics of the pelvic limb in dogs.
Cheng-Chung Lin   +5 more
doaj   +1 more source

Instantaneous Kinematics Analysis via Screw-Theory of a Novel 3-CRC Parallel Mechanism

open access: yes, 2016
This paper presents the mobility and kinematics analysis of a novel parallel mechanism that is composed by one base, one platform and three identical limbs with CRC joints.
Hussein de la Torre, E. Rodriguez-Leal
semanticscholar   +1 more source

Multiband Switchable Microwave Absorbing Metamaterials Based on Reconfigurable Kirigami–Origami

open access: yesAdvanced Functional Materials, EarlyView.
A reconfigurable metamaterial featuring tunable microwave‐absorbing and load‐bearing performance is proposed. Stretchable kirigami and bistable origami configurations are integrated as actuating components, and the synergistic deformation mechanisms are systematically analyzed.
Weimin Ding   +7 more
wiley   +1 more source

An integrated approach for inverse kinematics of unconventional manipulators using Monte Carlo random sampling method and Newton iterative method

open access: yesMeitan xuebao
Accurate determination of the inverse kinematics for the drilling arm of a drilling and anchoring robot is crucial in achieving automatic support in coal mine roadways.
Mengyu LEI   +8 more
doaj   +1 more source

Kinematic gait analysis in hemiplegic patients

open access: yesJournal of Rehabilitation Medicine, 1993
Temporal-distance variables of gait were investigated in 8 female and 23 male hemiplegic patients in order to assess the distribution of these variables according to functional ambulation category and to evaluate their validity. Video-recording technique was used for obtaining the temporal-distance values.
OZGIRGIN, N   +3 more
openaire   +3 more sources

Two distinct halo populations in the solar neighborhood. Evidence from stellar abundance ratios and kinematics

open access: yes, 2010
Precise abundance ratios are determined for 94 dwarf stars with 5200 < Teff < 6300 K, -1.6 < [Fe/H] < -0.4, and distances D < 335 pc. Most of them have halo kinematics, but 16 thick-disk stars are included.
Carollo   +31 more
core   +3 more sources

Tuning the Electronic Structure and Spin State of Fe─N─C Catalysts Using an Axial Oxygen Ligand and Fe Clusters for High‐Efficiency Rechargeable Zinc–Air Batteries

open access: yesAdvanced Functional Materials, EarlyView.
A FeN4─O/Clu@NC‐0.1Ac catalyst containing atomically‐dispersed FeN4─O sites (medium‐spin Fe2+) and Fe clusters delivered a half‐wave potential of 0.89 V for ORR and an overpotential of 330 mV at 10 mA cm−2 for OER in 0.1 m KOH. When the catalyst was used in a rechargeable Zn–air battery, a power density of 284.5 mW cm−2 was achieved with excellent ...
Yongfang Zhou   +8 more
wiley   +1 more source

Gravity and inertial load adaptive control of wall-climbing robot

open access: yesThe Journal of Engineering, 2018
The five-degree-of-freedom double-legged wall-climbing robot is the most straightforward structure with the promising application because the minimum degree-of-freedom of the foot-type climbing robot with continuous movement and obstacle-overcoming ...
Shuang Dong
doaj   +1 more source

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