Results 21 to 30 of about 2,239,293 (272)

Independent trapping and manipulation of microparticles using dexterous acoustic tweezers [PDF]

open access: yes, 2014
An electronically controlled acoustic tweezer was used to demonstrate two acoustic manipulation phenomena: superposition of Bessel functions to allow independent manipulation of multiple particles and the use of higher-order Bessel functions to trap ...
Cochran, Sandy   +6 more
core   +4 more sources

A highly contiguous genome assembly of Brassica nigra (BB) and revised nomenclature for the pseudochromosomes

open access: yesBMC Genomics, 2020
Background Brassica nigra (BB), also called black mustard, is grown as a condiment crop in India. B. nigra represents the B genome of U’s triangle and is one of the progenitor species of B.
Kumar Paritosh   +2 more
doaj   +1 more source

A six degrees of freedom MEMS manipulator [PDF]

open access: yes, 2006
This thesis reports about a six degrees of freedom (DOF) precision manipulator in MEMS, concerning concept generation for the manipulator followed by design and fabrication (of parts) of the proposed manipulation concept in MEMS.
Jong, Boudewijn Ruben de
core   +3 more sources

Using an Auxiliary Mach–Zehnder Interferometer to Compensate for the Influence of Laser-Frequency-Drift in Φ-OTDR

open access: yesIEEE Photonics Journal, 2019
In phase-sensitive optical time-domain reflectometry (Φ-OTDR), the frequency drift of the laser source induces the fluctuation of signal, which limits the measurement capacity of Φ-OTDR for low frequency severely.
Quan Yuan   +4 more
doaj   +1 more source

Bayesian Model for 3D Undulating Terrain Depth Estimation Using Photon Counting LiDAR

open access: yesRemote Sensing, 2023
Photon counting LiDAR can capture the 3D information of long-distance targets and has the advantages of high sensitivity and high resolution. However, the noise counts restrict improvements in the photon counting imaging quality.
Rui Wang   +5 more
doaj   +1 more source

Optimization Design Method of a 6-DOF Micromanipulation Mechanism for Extreme Ultraviolet Projection Lithography Objective Lens

open access: yesShock and Vibration
The six-degree-of-freedom (6-DOF) micromotion mechanism is a key component in extreme ultraviolet (EUV) projection lithography objectives to compensate for wavefront aberration and ensure performance stability.
Shiyu Li   +6 more
doaj   +1 more source

A Method Based on Time-Scale Factor for Correcting the Nonlinear Frequency Sweeping in an OFDR System

open access: yesIEEE Photonics Journal, 2019
A data processing method for correcting the frequency sweeping nonlinearity of a tunable laser in an optical frequency domain reflectometry system is presented.
Jingjing Xing   +6 more
doaj   +1 more source

Dynamic Manipulability of Robot Manipulators

open access: yesTransactions of the Society of Instrument and Control Engineers, 1985
The concept of dynamic manipulability measure of robot arms is proposed as a quantitative measure of their manipulating ability in positioning and orienting the end-effectors, which takes the arm dynamics into consideration. This measure is defined on the basis of the relation between the joint driving force and the acceleration of the end-effector ...
openaire   +3 more sources

A PRSZT Registry Analysis of Prognostic Factors Influencing Survival and Relapse Rates After Second Allogeneic Hematopoietic Stem Cell Transplantation in Pediatric Acute Lymphoblastic Leukemia

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT A second allogeneic (allo‐)hematopoietic stem cell transplantation (HSCT2) is a potential curative option for pediatric patients with acute lymphoblastic leukemia (ALL) following relapse after first allogeneic transplantation (HSCT1), but its efficacy is limited by high relapse rates and transplant‐related toxicity in highly pretreated ...
Ava Momm   +10 more
wiley   +1 more source

Manipulation monitoring and robot intervention in complex manipulation sequences [PDF]

open access: yes, 2014
Compared to machines, humans are intelligent and dexterous; they are indispensable for many complex tasks in areas such as flexible manufacturing or scientific experimentation.
Buch, Anders G.   +7 more
core   +1 more source

Home - About - Disclaimer - Privacy