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Shear-related roughness classification and strength model of natural rock joint based on fuzzy comprehensive evaluation

, 2020
This paper investigated shear-related roughness classification based on Fuzzy comprehensive evaluation, and established a new strength model of natural rock joint.
Yanlin Zhao   +3 more
semanticscholar   +1 more source

The influence of additive manufacturing processing parameters on surface roughness and fatigue life

International Journal of Fatigue, 2019
Additive manufacturing (AM) is used to create metal components with complex geometries where the internal surfaces cannot easily be post machined. Fatigue behavior in additively manufactured metals is largely driven by defects in the material such as ...
Joy E. Gockel   +3 more
semanticscholar   +1 more source

Role of surface roughness in the wettability, surface energy and flotation kinetics of calcite

, 2020
The surface wettability and flotation dynamic characteristics of calcite are of great significance for separating it from other coexisting minerals, and the surface roughness plays an important role in the wettability and floatability of calcite ...
Xianchen Wang, Qin Zhang
semanticscholar   +1 more source

Rough Relational Operators and Rough Entropy in Rough Relational Database

2009 Second International Workshop on Knowledge Discovery and Data Mining, 2009
The relational database model (RDM), proposed by Codd, has been proven to be a very useful model in many applications. The inherent of the RDM is effective for precise and unambiguous data. However, real world applications often include imprecise and uncertain information. Therefore, Beaubouef et al.
Feng Jiang, Guozhu Liu
openaire   +1 more source

Notes for rough derivatives and rough continuity in rough function model

2010 Seventh International Conference on Fuzzy Systems and Knowledge Discovery, 2010
In the scheme of Pawlak rough derivatives theory, functional features of roughly derived functions and higher order roughly derived functions are directed in rough function model. The valuing laws of first order and higher order roughly derived functions are given in form of a rough derivatives table.
Yun Wang, Xiaojing Xu, Zhaoxia Yu
openaire   +1 more source

ROUGH SETS, ROUGH RELATIONS AND ROUGH FUNCTIONS

Fundamenta Informaticae, 1996
The paper explores the concepts of approximate relations and functions in the framework of the theory of rough sets. The difficulties with the application of the idea of rough relation to general rough function definition are discussed. The definition of rough function for the domain of real numbers is introduced and its properties are investigated in ...
openaire   +3 more sources

Analysis of the effect of surface roughness on fatigue performance of powder bed fusion additive manufactured metals

, 2020
An important advantage of AM is to create net-shaped components with no need for further surface machining since it is usually very difficult for complex geometries.
N. Sanaei, A. Fatemi
semanticscholar   +1 more source

Roughness bounds in rough set operations

Information Sciences, 2006
Roughness indicates the significance of the uncertain elements of a rough set. This paper presents some bounds for rough set operations. The bounds obtained for the union as well as for the difference of rough sets depend on their operand's roughnesses.
Yingjie Yang, Robert I. John
openaire   +2 more sources

Evaluation of turned and milled surfaces roughness using convolutional neural network

, 2020
Existing computer vision methods to measure surface roughness rely on feature extraction to quantify the surface morphology and build prediction models.
A. Rifai   +4 more
semanticscholar   +1 more source

Rough Sets

International Journal of Computer & Information Sciences, 1982
Summary: We investigate in this paper approximate operations on sets, approximate equality of sets, and approximate inclusion of sets. The presented approach may be considered as an alternative to fuzzy set theory and tolerance theory. Some applications are outlined.
openaire   +1 more source

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