Results 141 to 150 of about 1,953,556 (348)

Effects of oxidation of minerals on physico-chemical properties pertaining to gravity separation [PDF]

open access: yes, 2007
This paper discusses the alteration characteristics of beach placer ilmenites which is initially processed by gravity separation techniques (for pre-concentration) along with other beach placer heavy minerals.
Rao, D S   +4 more
core  

Extrusion Bioprinting for Wound Healing: Innovations in Functionalized Bioinks and Bioprinting Technology

open access: yesAdvanced Materials Technologies, EarlyView.
Extrusion‐based bioprinting (EBB) has emerged as a versatile biofabrication platform capable of precisely depositing bioinks composed of biomaterials, cells, and bioactive agents to generate patient‐specific, biomimetic skin constructs. This paper presents a state‐of‐the‐art and forward‐looking overview of EBB for wound healing, encompassing printing ...
Hien‐Phuong Le   +4 more
wiley   +1 more source

Combined use of the GGSFT data base and on Board Marine Collected Data to Model the Moho Beneath the Powell Basin, Antarctica [PDF]

open access: yes, 2007
The Powell Basin is a small oceanic basin located at the NE end of the Antarctic Peninsula developed during the Early Miocene and mostly surrounded by the continental crusts of the South Orkney Microcontinent, South Scotia Ridge and Antarctic Peninsula ...
Suriñach, Emma   +17 more
core  

Optical Manipulation of Whispering Gallery Mode Microlasers for Controlled Cellular Delivery

open access: yesAdvanced Optical Materials, EarlyView.
Optically trapped whispering‑gallery microlasers are precisely positioned onto non‐phagocytic mammalian cells to report local refractive‑index changes in real time. Time‑dependent wavelength shifts reveal successive stages from membrane contact to internalization.
Soraya Caixeiro   +3 more
wiley   +1 more source

Multiobjective Codesign Optimization of a Planar Pneumatic Artificial Muscle‐Based Snake‐Like Robot for Enhanced Agility and Energy Efficiency

open access: yesAdvanced Robotics Research, EarlyView.
A codesign multiobjective optimization framework was developed to enhance the morphology and controller of a snake‐like robot driven by artificial muscles. It improved planar locomotion, agility, and power efficiency. The approach optimized link geometry and controller gains, revealing that shorter muscles near joints and longer linkages maximize ...
Ayla Valles, Mahdi Haghshenas‐Jaryani
wiley   +1 more source

Effects of Gravity Level on Phase Separation of PbO-B₂O₂ Glasses [PDF]

open access: yes, 2006
PbO-B2O3 glasses were melted and solidified through drop shaft experiment to explore the phase-separation of the glasses under different gravity conditions. XRD was conducted to determine the phase of samples after phase-separation.
Day, D. E.   +4 more
core  

Collision‐Resilient Winged Drones Enabled by Tensegrity Structures

open access: yesAdvanced Robotics Research, EarlyView.
Based on structures of birds such as the woodpeck, this article presents the collision‐resilient aerial robot, SWIFT. SWIFT leverages tensegrity structures in the fuselage and wings which allow it to undergo large deformations in a crash, without sustaining damage. Experiments show that SWIFT can reduce impact forces by 70% over conventional structures.
Omar Aloui   +5 more
wiley   +1 more source

Soft Robotic Snake with Tunable Undulatory Gait for Efficient Underwater Locomotion

open access: yesAdvanced Robotics Research, EarlyView.
This study designs an underwater soft snake robot using 3D‐printed soft actuators, controlled by specific signals to generate sinusoidal undulation. Results show a positive correlation between speed and swing amplitude, with optimal performance at 2/3π phase offset, PLA tail, 1.2 voltage growth rate, and 6s undulation period achieving a maximum speed ...
Huichen Ma, Junjie Zhou, Raye Yeow
wiley   +1 more source

CALCULATION OF THE LENGTH OF THE SEPARATION ZONE OF A GRAVITY GAS SEPARATOR

open access: yesScientific Papers Collection of the Angarsk State Technical University
The work calculates the length of the separation zone of a horizontal gravitational gas separator of an oil field, designed to separate droplet liquid from gas discharged to a ...
Evgeniy Podoplelov   +2 more
openaire   +1 more source

Secondary Phase-Separation of Lead Borate Glass under Different Gravity Conditions [PDF]

open access: yes, 2007
The lead borate glass was melted and solidified under different gravity conditions, and microstructure of the samples was observed through SEM. The secondary phase-separation of the glasses were explored and the possible immisibility region existed in ...
Day, D. E.   +4 more
core  

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