Results 101 to 110 of about 1,008,908 (306)

基于刀具实际廓形的数控加工刀具轨迹计算

open access: yesJixie chuandong, 2010
Tool path generation method is the most important and the most extensive and in-depth content for the free-form surface parts NC-machining. In the multi-axis NC-machining,tool path influences on the precision and efficiency of machining.
段振云, 王君, 赵文辉
doaj  

Automated process planning system to machine organic shapes by combining turning and milling

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing
Automated process planning is one of the means to shorten production lead time, and there have been many previous studies because it is particularly effective for high-mix, low-volume production factories.
Ryo TAKAMORI   +2 more
doaj   +1 more source

Dominators in Directed Graphs: A Survey of Recent Results, Applications, and Open Problems [PDF]

open access: yes, 2013
The computation of dominators is a central tool in program optimization and code generation, and it has applications in other diverse areas includingconstraint programming, circuit testing, and biology.
Georgiadis, Loukas, Parotsidis, Nikos
core  

Unique Performance Considerations for Printable Organic Semiconductor and Perovskite Radiation Detectors: Toward Consensus on Best Practice Evaluation

open access: yesAdvanced Functional Materials, EarlyView.
A lack of standard approaches for testing and reporting the performance of metal halide perovskites and organic semiconductor radiation detectors has resulted in inconsistent interpretation of performance parameters, impeding progress in the field. This Perspective recommends key metrics and experimental details, which are suggested for reporting in ...
Jessie A. Posar   +8 more
wiley   +1 more source

Dynamic program analysis for error detection using goal-seeking input data generation

open access: yesТруды Института системного программирования РАН, 2018
This paper describes the principles of program dynamic analysis for defect detection using input data generation. Techniques of program transformation allowing execution trace extraction, data flow tracing and input data generation for execution path ...
S. P. Vartanov, A. Y. Gerasimov
doaj   +1 more source

ANALYZING USER INTERACTION LOGS OF AN EDUCATIONAL VISUALIZATION SYSTEM TO UNDERSTAND HOW STUDENTS GENERATE INSIGHTS [PDF]

open access: yes, 2018
Department of Computer Science and EngineeringVisual analytics systems have been becoming popular in many domains. Recently, a visual analytical tool, VAiRoma is designed in educational domain to support students learn the history class.
Mukabak, Kuatbek
core  

Organic Electrochemical Transistor Channel Materials: Copolymerization Versus Physical Mixing of Glycolated and Alkoxylated Polymers

open access: yesAdvanced Functional Materials, EarlyView.
This work discusses the use of blended channel materials in OECTs. It explores how mixing glycolated and alkoxylated polymers in various ratios offers a simpler and more efficient route to tuning OECT properties. The performance of the polymer blends is compared to the corresponding copolymers, demonstrating similar OECT characteristics, swelling ...
Lize Bynens   +14 more
wiley   +1 more source

An ontology for the description of and navigation through philosophical resources [PDF]

open access: yes, 2006
What does it mean for a student to come to an understanding of a philosophical standpoint and can the explosion of resources now available on the web support this process, or is it inclined instead to create more confusion?
Motta, Enrico, Pasin, Michele
core  

Ferrocene Derivatives Enable Ultrasensitive Perovskite Photodetectors with Enhanced Reverse Bias Stability

open access: yesAdvanced Functional Materials, EarlyView.
Novel ferrocene derivatives (e.g., FcPhc2) are used as an ultrathin layer hole‐blocking layer, reducing hole injection from the Ag contact. This results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V.
Eunyoung Hong   +16 more
wiley   +1 more source

Intermolecular Interactions as Driving Force of Increasing Multiphoton Absorption in a Perylene Diimide‐Based Coordination Polymer

open access: yesAdvanced Functional Materials, EarlyView.
This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger   +11 more
wiley   +1 more source

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