Results 51 to 60 of about 560,047 (295)
A Novel Combined Method for Measuring the Three-Dimensional Rotational Angle of a Spherical Joint
Sensors, 2023 To improve the measurement accuracy of the three-dimensional rotation angle of a spherical joint, a novel approach is proposed in this study, which combines magnetic detection by a Hall sensor and surface feature identification by an eddy current sensor.
Qianyun Yang +4 more
doaj +1 more source
Elbow and knee joint for hard space suits [PDF]
, 1986 An elbow or knee joint for a hard space suit or similar usage is formed of three serially connected rigid sections which have truncated spherical configurations. The ends of each section form solid geometric angles, and the sections are interconnected by
Vykukal, H. C.
core +1 more source
On a q-analog of the Wallach-Okounkov formula [PDF]
, 2006 We obtain a $q$-analog of the well known Wallach-Okounkov result on a joint spectrum of invariant differential operators with polynomial coefficients on a prehomogeneous vector space of complex $n \times n$-matrices.
Bershtein, O. +2 more
core +1 more source
Advanced Functional Materials, EarlyView.An efficient NiOx HTL is successfully prepared by introducing MXene as an additive without further surface modification to fabricate high‐performance FASn0.5Pb0.5I3 perovskite solar cells. The introduction of MXene contributes to improved conductivity of NiOx, better aligned at NiOx/perovskite interfaces, and enhanced quality of perovskite films ...
Lijun Chen +12 more
wiley +1 more source
Switching Between Continuum and Discrete States in a Continuum Robot With Dislocatable Joints
IEEE Access, 2021 Rigid linkages allow robots to lift heavy loads but prevent them from gently stretching and bending their bodies. Continuum robots without rigid linkages have a wide range of motion, safety, shape adaptability, and compliance.
Ayato Kanada, Tomoaki Mashimo
doaj +1 more source
Collision Times in Multicolor Urn Models and Sequential Graph Coloring With Applications to Discrete Logarithms [PDF]
, 2016 Consider an urn model where at each step one of $q$ colors is sampled according to some probability distribution and a ball of that color is placed in an urn. The distribution of assigning balls to urns may depend on the color of the ball.
Bhattacharya, Bhaswar B.
core +2 more sources
Gourd‐Inspired Design of Unit Cell with Multiple Gradients for Physiological‐Range Pressure Sensing
Advanced Functional Materials, EarlyView.Gourd‐shaped micro‐dome arrays with coordinated modulus, conductivity, and geometric gradients co‐optimize sensitivity and linearity in piezoresistive tactile sensors. Under pressure, a solid upper dome embeds into a porous lower dome, triggering rapid contact‐area growth and series‐to‐parallel conduction, enabling unsaturated, intensity‐resolved ...
Jiayi Xu +6 more
wiley +1 more source
The Dynamics of Two Coupled Rigid Bodies [PDF]
, 1987 In this paper we derive a Poisson bracket on the phase space so(3)^*x so(3)^*x SO(3) such that the dynamics of two three- dimensional rigid bodies coupled by a ball and socket joint can be written as a Hamiltonian ...
Grossman, R. +2 more
core +1 more source
Advanced Functional Materials, EarlyView.By mimicking the ion‐accelerating effect of ion channel receptors in neuron membranes, a biomaterials‐based ionic hydrogel (BIH) is developed, which offers a high ionic conductivity of 7.04 S m−1, outperforming conventional chitosan, cellulose, agarose, starch, and gelatin based ionic hydrogels.
Baojin Chen +7 more
wiley +1 more source
Analysis of Ball Soldering Parameters on the Properties of a BGA Packaged Semiconductor [PDF]
Materials Research, 2018 Integrated circuits have several applications, including medicine and the aerospace industry, where reliability is essential. Packaging is an important step in the manufacturing of integrated circuits, and ball soldering is one of the most critical ...
Dario G. Rosa +5 more
doaj +1 more source