Results 41 to 50 of about 69,107,912 (284)

Quantum Turing Machines: Computations and Measurements [PDF]

open access: yesApplied Sciences, 2020
Contrary to the classical case, the relation between quantum programming languages and quantum Turing Machines (QTM) has not been fully investigated. In particular, there are features of QTMs that have not been exploited, a notable example being the intrinsic infinite nature of any quantum computation.
Stefano Guerrini   +2 more
openaire   +6 more sources

Five-Axis Machine Tool Coordinate Metrology Evaluation Using the Ball Dome Artefact Before and After Machine Calibration

open access: yesJournal of Manufacturing and Materials Processing, 2019
Now equipped with touch trigger probes machine tools are increasingly used to measure workpieces for various tasks such as rapid setup, compensation of final tool paths to correct part deflections and even verify conformity to finished tolerances.
Heidarali Hashemiboroujeni   +3 more
doaj   +1 more source

A Case Study on Assessing the Capability and Applicability of an Articulated Arm Coordinate Measuring Machine and a Touch-Trigger Probe for On-Machine Measurement

open access: yesMachines
In modern manufacturing, there is an increasing demand for reliable in-process measurement methods directly on large CNC machine tools, eliminating the need to transport workpieces to metrological laboratories.
Vendula Samelova   +5 more
doaj   +1 more source

On the Design of a Photo Beauty Measurement Mechanism Based on Image Composition and Machine Learning

open access: yes, 2021
In this chapter, we propose a machine learning scheme on how to measure the beauty of a photo. Different from traditional measurements that focus on the quality of captured signals, the beauty of photos is based on high-level concepts from the knowledge ...
Fahn, C. S.;Wu, M. L.
core  

Roundness Deviation Measuring Strategy At Coordination Measuring Machines And Conventional Machines

open access: yes, 2009
Today technological process makes possible surface control of producing parts which is needful for product quality guarantee. Geometrical structure of part surface includes form, proportion, accuracy to shape, accuracy to size, alignment and surface topography (roughness, waviness, etc.).
Ocenašova, Lenka   +6 more
openaire   +4 more sources

Comparison of Volumetric Analysis Methods for Machine Tools with Rotary Axes [PDF]

open access: yes, 2009
Confidence in the ability of a production machine to meet manufacturing tolerances requires a full understanding of the accuracy of the machine. However, the definition of “the accuracy of the machine” is open to interpretation. Historically, this has
Longstaff, Andrew P.   +3 more
core   +5 more sources

Measurement of Free-Form Curved Surfaces Using Laser Triangulation

open access: yesSensors, 2018
Laser triangulation (LT) is widely used in many fields due to its good stability, high resolution and fast speed. However, the accuracy in these applications suffers from severe constraints on the data acquisition accuracy of LT.
Zhixu Dong   +3 more
doaj   +1 more source

Feasibility study of multi-point two-dimensional profile measurement by 3-2-1 and 3×3 sensor layout

open access: yesMeasurement: Sensors, 2021
New multi-point methods, the six-point method of 3-2-1 sensor layout and the nine-point method of 3 × 3 sensor layout, have been proposed as the two-dimensional profilometry for a machined flat surface.
Ryotaro Fujiwara, Hiroki Shimizu
doaj   +1 more source

A Novel Design of Through-Hole Depth On-Machine Optical Measuring Equipment for Automatic Drilling and Riveting

open access: yesApplied Sciences, 2018
In the aerospace manufacturing industry, it is impossible to achieve precise and efficient automatic drilling and riveting for largescale composite board parts.
Nianhan Wu   +4 more
doaj   +1 more source

Comparative Evaluation of Hemodiafiltration, Hemoperfusion, and Standard Hemodialysis on Efficacy, Inflammatory Control, Dialysis Adequacy, and Safety in End‐Stage Renal Disease: A Prospective Observational Study

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Chronic micro‐inflammation in patients with end‐stage renal disease (ESRD) is a significant driver of cardiovascular complications and diminished quality of life. While standard hemodialysis (SHD) effectively manages small‐molecule clearance, its ability to remove medium‐to‐large uremic toxins—the primary catalysts of systemic ...
Hongwei Zuo   +5 more
wiley   +1 more source

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