Results 81 to 90 of about 19,547 (300)
Continuum Mechanics Modeling of Flexible Spring Joints in Surgical Robots
Advanced Robotics Research, EarlyView.A new mechanical model of a tendon‐actuated helical extension spring joint in surgical robots is built using Cosserat rod theory. The model can implicitly handle the unknown contacts between adjacent coils and numerically predict spring shapes from straight to significantly bent under actuation forces.
Botian Sun +3 more
wiley +1 more source
Electrochemical dissolution of nickel-rheniumcontaining alloys
Тонкие химические технологии, 2015 This work is devoted to the study of electrochemical dissolution of nickel-rhenium (10% wt.) alloy and nickel-rhenium (20% wt.) alloy. The study was carried out under pulsed current in acidic electrolytes (sulfuric, nitric and hydrochloric acids). It was
T. B. Yelemessov +4 more
doaj
3D‐Nanoprinted Fluidically Steerable Soft Robotic Microcatheters
Advanced Robotics Research, EarlyView.This work introduces a ∼3‐French (1 mm‐in‐diameter) soft robotic microcatheter fabricated by means of two‐photon direct laser writing. The 3D‐printed microcatheter enables remote, on‐demand steering via microfluidic actuation for guidewire‐free navigation of vascular networks as well as microcatheter‐mediated delivery of fluidic payloads to target ...
Bailey M. Felix +17 more
wiley +1 more source
Incorporation of Rhenium in Tin Dioxide for Technetium Immobilization
, 2018 1
Khan, Mumtaz, Um woo yong, HONG, SEOK JU
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Advanced Science, EarlyView.A programmable 2048‐element circular ultrasound array combined with a compact acoustic lens produces a thin “sound sheet” over a large field of view, and records echoes with wide angular diversity across the ring aperture. Coherence‐enhanced beamforming converts full‐matrix data into high‐contrast tomographic slices, delivering near‐diffraction‐limited
Qiu‐De Zhang +11 more
wiley +1 more source
Тонкие химические технологии, 2013 In the territory of Kazakhstan there are unique deposits, in which, along with non-ferrous metals, there are also other very valuable metals such as rhenium and isotope osmium-187.
Z. S. Abisheva, A. N. Zagorodnyaya
doaj
Review of Technology for Rhenium Extraction From Lead Sludges and Dusts of Copper Production
Journal of EngineeringDuring the processing of copper concentrates containing rhenium, the primary technological focus is on copper extraction. Consequently, rhenium is distributed among the processing products and accumulates in varying concentrations depending on its ...
Berdikulova Feruza +2 more
doaj +1 more source
Determination of Calibration Characteristics of X-Ray Fluorescent Analysis of Rhenium
Eurasian Chemico-Technological Journal, 2011 Extraction concentration of rhenium by a melt of tetraoctylammonium bromide in paraffin was used with the aim of preparation of calibration samples for roentgen fluorescent analysis.
A. V. Troeglazova +3 more
doaj +1 more source
Advanced Science, EarlyView.High‐throughput single‐cell analysis of resuscitating bacteria reveals a starvation‐history‐dependent transiently tolerant subpopulation that survives β$\beta$‐lactam exposure by temporarily reducing growth. Distinct from classical persisters, these actively growing yet dynamically modulated cells dominate survival across clinically relevant antibiotic
Kieran Abbott +5 more
wiley +1 more source
Oxide strengthened molybdenum-rhenium alloy [PDF]
, 1998 Provided is a method of making an ODS molybdenum-rhenium alloy which includes the steps of: (1) forming a slurry containing molybdenum oxide and a metal salt dispersed in an aqueous medium, the metal salt being selected from nitrates or acetates of ...
Bianco, Robert, Buckman, William R. Jr.
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