Results 111 to 120 of about 313,526 (298)

Omission Error Analysis in Gravity Gradient Measurement

IEEE Access, 2018
Gravity gradient plays an important role in many fields of science, and many methods are used to achieve the measurement of it. To improve measurement accuracy, various error analyses have been conducted in previous studies about positioning and ...
Hongwei Wei, Meiping Wu, Juliang Cao, Junxiang Lian, Shaokun Cai   +4 more
doaj   +1 more source

Topology and Material Optimization in Ultra‐Soft Magneto‐Active Structures: Making Advantage of Residual Anisotropies

Advanced Materials, EarlyView.
Residual magnetization induces pronounced mechanical anisotropy in ultra‐soft magnetorheological elastomers, shaping deformation and actuation even without external magnetic fields. This study introduces a computational‐experimental framework integrating magneto‐mechanical coupling into topology optimization for designing soft magnetic actuators with ...
Carlos Perez‐Garcia, Rogelio Ortigosa, Jesús Martínez‐Frutos, Daniel Garcia‐Gonzalez   +3 more
wiley   +1 more source

Eigenvector of gravity gradient tensor for estimating fault dips considering fault type

Progress in Earth and Planetary Science, 2017
The dips of boundaries in faults and caldera walls play an important role in understanding their formation mechanisms. The fault dip is a particularly important parameter in numerical simulations for hazard map creation as the fault dip affects ...
Shigekazu Kusumoto
doaj   +1 more source

Black holes, first-order flow equations and geodesics on symmetric spaces

, 2009
For both extremal and non-extremal spherically symmetric black holes in theories with massless scalars and vectors coupled to gravity, we derive a general form of first-order gradient flow equations, equivalent to the equations of motion.
Andrianopoli, Breitenlohner, Cardoso, Cardoso, Celi, Ceresole, Ferrara, Ferrara, Ferrara, Ferrara, Gibbons, Gimon, Janssen, Lü, Miller, Skenderis, Sonner   +16 more
core   +1 more source

Rewriting Polymer Fate via Chemomechanical Coupling

Advanced Materials, EarlyView.
This work introduces a life‐like “living” polymer platform that can grow, degrow, and reprogram its properties after fabrication. By integrating mass transport, reversible polymerization, and controlled catalysis, the material achieves on‐demand changes in size, shape, and mechanical properties.
Jiahe Huang, Haohui Zhang, Jiehao Chen, Xuelin Sui, Febby Krisnadi, Dongjing He, Huajian Ji, Will R. Gutekunst, Michael D. Dickey, Yuhang Hu   +9 more
wiley   +1 more source

Enhancing Grayscale E‐Beam Lithography: Thermal Treatment of Novolak‐Based Resist for 3D Nanostructures

Advanced Materials Interfaces, EarlyView.
Surface roughness and chemistry of novolak‐based grayscale resists are dependent on both exposure dose and post‐exposure thermal treatment. The observed trends align with the viscoelastic phase separation model and underscore the need to consider both thermodynamic and kinetic factors in resist processing. By tailoring thermal treatment, it is possible
Rahul Singh, Christian Vinther Bertelsen, Neeti Kalyani, Maria Dimaki, Winnie Edith Svendsen   +4 more
wiley   +1 more source

Gravity compensation in complex plasmas by application of a temperature gradient

, 2002
Micron sized particles are suspended or even lifted up in a gas by thermophoresis. This allows the study of many processes occurring in strongly coupled complex plasmas at the kinetic level in a relatively stress-free environment.
C. Gerthsen, F. Reif, G. E. Morfill, H. M. Thomas, H. Rothermel, H. M. Thomas, L. Waldmann, M. H. Thoma, M. Wutz, O. Havnes, P. R. i Cabarrocas, T. Hagl, V. V. Balabanov   +12 more
core   +1 more source

Interfacial Behavior of Methane in Methane/p‐Xylene/Water Systems: First Principles Inspected Using Neutron Imaging and Molecular Dynamics Simulations

Advanced Materials Interfaces, EarlyView.
Pressurized gases reduce interfacial tension (IFT) at the gas‐liquid interfaces, their influence on the liquid–liquid interfaces remains unclear. For model compounds methane, water, and p‐xylene, neutron imaging observation of pressurized three‐phase systems is combined with Molecular Dynamics simulations.
Martin Melčák, Tereza‐Markéta Durďáková, Petr Číhal, Jonatan Šercl, Jongmin Lee, Pierre Boillat, Jan Heyda, Pavel Trtik, Ondřej Vopička   +8 more
wiley   +1 more source

Hydrogel‐Based 3D‐Printable Stretchable Pressure Sensor

Advanced Materials Technologies, EarlyView.
We present a carbon‐black‐functionalized double‐network granular hydrogel (DNGH) pressure sensor capable of detecting pressures from 200 Pa, equivalent to a light finger touch, up to 500 kPa. The sensor exhibits signal drifts below 3.5% after 800 cycles and response times around 80 ms. Leveraging this broad sensing range, we 3D print this material into
Tianyu Yuan, Chenzhuo Li, Antonia Georgopoulou, John M. Kolinski, Esther Amstad   +4 more
wiley   +1 more source

Design of Attitude Control System of an Axisymmetric Satellite with Gravity Gradient Stabilization and Slow Spinning about Yaw Axis [PDF]

فصلنامه علوم و فناوری فضایی, 2008
Attitude control system of satellite with Gravity Gradient stabilization requires high moments of inertia ratio for providing stability and continuous orientation toward Earth.
H. Bolandi, B. Ghorbani-Vaghei, F. Fani- Saberi   +2 more
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