Results 91 to 100 of about 526,359 (299)
Precise computer controlled positioning of robot end effectors using force sensors [PDF]
A thorough study of combined position/force control using sensory feedback for a one-dimensional manipulator model, which may count for the spacecraft docking problem or be extended to the multi-joint robot manipulator problem, was performed.
Mcinnis, B. C. +2 more
core +4 more sources
FEBS Letters, EarlyView.Bone metastasis in prostate cancer (PCa) patients is a clinical hurdle due to the poor understanding of the supportive bone microenvironment. Here, we identify stearoyl‐CoA desaturase (SCD) as a tumor‐promoting enzyme and potential therapeutic target in bone metastatic PCa.
Alexis Wilson +7 more
wiley +1 more source
FEBS Letters, EarlyView.We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee +3 more
wiley +1 more source
Mokslas: Lietuvos Ateitis, 2013 The paper presents modelling precise dual axis flexure-based precision positioning systems for micro-positioning applications. The positioning system is featured with monolithic architecture, flexure-based joints and piezo stacks.
Giedrius Augustinavičius +1 more
doaj +1 more source
Precise Positioning: When OTFS Meets Distributed Cooperative Positioning
, 2023 <p>Precision positioning plays critical roles in 5G-Advanced and 6G systems for various indoor and outdoor applications. Conventionally, positioning accuracy can be dramatically degraded under non-line-of-sight channels or with moving terminal nodes (TNs).
Hao Wang, Sha Hu, mj emadi
openaire +1 more source
Structural biology of ferritin nanocages
FEBS Letters, EarlyView.Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley +1 more source
Modelling a Compliant-Based Precise Positioning Stage
Mokslas: Lietuvos Ateitis, 2012 The paper presents modelling precise dual axis flexure-based precision positioning systems for micro-positioning applications. The positioning system is featured with monolithic architecture, flexure-based joints and piezo stacks.
Giedrius Augustinavičius +1 more
doaj
Possibility of Precise Positioning and Precise Inshore Navigation Using RTK and Internet [PDF]
TransNav, 2008 The practical need for GNSS positioning in real time led to the development of a medium for data transmission. DGPS correction data can be transmitted over an area of several hundred square kilometers using longwave radio frequencies.
Lech Kujawa, Jerzy B. Rogowski
doaj
Precise Point Positioning Using Triple GNSS Constellations in Various Modes
Sensors, 2016 This paper introduces a new dual-frequency precise point positioning (PPP) model, which combines the observations from three different global navigation satellite system (GNSS) constellations, namely GPS, Galileo, and BeiDou.
Akram Afifi, Ahmed El-Rabbany
doaj +1 more source
Office of Spaceflight Standard Spaceborne Global Positioning System (GPS) user equipment project [PDF]
The Global Positioning System (GPS) provides the following: (1) position and velocity determination to support vehicle GN&C, precise orbit determination, and payload pointing; (2) time reference to support onboard timing systems and data time tagging; (3)
Saunders, Penny E.
core +1 more source