Results 1 to 10 of about 1,586,861 (165)

Density Peak Clustering Algorithm Based on Relative Density [PDF]

open access: yesJisuanji gongcheng, 2023
When the density peak clustering algorithm deals with datasets with uneven density,it is easy to divide the low-density clusters into high-density clusters,divide the high-density clusters into multiple sub-clusters,and exists the error propagation ...
WEI Ya, ZHANG Zhengjun, HE Kailin, TANG Li
doaj   +1 more source

Density Peaks Clustering Combining Relative Local Density and Nearest Neighbor Relationship [PDF]

open access: yesJisuanji kexue yu tansuo, 2023
When the density peaks algorithm deals with datasets with different densities, the wrong center points may be selected, and the problem of associated errors may occur in the sample allocation process.
WANG Weina, ZHU Yu, REN Yan
doaj   +1 more source

Density Peak Clustering Based on Relative Density under Progressive Allocation Strategy

open access: yesMathematical and Computational Applications, 2022
In traditional density peak clustering, when the density distribution of samples in a dataset is uneven, the density peak points are often concentrated in the region with dense sample distribution, which is easy to affect clustering accuracy.
Yongli Liu, Congcong Zhao, Hao Chao
doaj   +1 more source

Effect of Machining Process Parameters and Number of Pass on Compaction Behaviour of Commercially Pure Aluminium Chips Consolidated by Equal Channel Angular Pressing (ECAP) Using Response Surface Methodology [PDF]

open access: yesArchives of Metallurgy and Materials, 2022
This work investigates the compaction behaviour of commercial pure aluminium chips (CP Al) produced during a machining operation and subsequently consolidated by Equal Channel Angular Pressing (ECAP).
R. Palanivel   +5 more
doaj   +1 more source

ANALYSIS OF PRODUCTION METHOD AND STABILIZING AGENT ON STRUCTURE OF ALUMINUM METAL FOAMS

open access: yesJournal of Sustainable Technologies and Materials, 2023
Aluminum alloy foams are a form of porous metal whose structure resembles the shape of natural materials such as coral, bone, sponge, etc. Due to their structure, these materials retain good mechanical properties of the base material while being ...
Karla Grgić   +4 more
doaj   +1 more source

EXPERIMENTAL STUDY OF RELATIVE DENSITY EFFECT ON BEARING CAPACITY OF SAND REINFORCED WITH GEOGRID

open access: yesMağallaẗ Al-kūfaẗ Al-handasiyyaẗ, 2021
Reinforced soil technology is considered one of the most important methods of soil improvement due to its simplicity and speed in implementation and saving cost. In this research a strip footing and geogrid (Tensar SS2) were used to reinforced sandy soil
Noor A. Fakher, Mohammed K. Fakhruldin
doaj   +1 more source

Debinding and sintering properties of titanium alloys prepared by powder injection molding

open access: yesFenmo yejin jishu, 2021
Complex shaped titanium alloy parts with the high-precision and high performance were prepared by powder injection molding (PIM) technology. High powder loading titanium alloy feedstock by catalytic debinding was prepared by the multi-granularity powders
GAO Chun-ping   +5 more
doaj   +1 more source

Experimental Study on the Coefficient of Earth Pressure at Rest for Sand

open access: yesBuildings, 2023
The coefficient of earth pressure at rest K0 is a state soil variable correlated with relative density Dr. As previously conducted K0 tests could not guarantee zero lateral deformation in the sand specimens, significant errors occurred in the test ...
Libing Li   +3 more
doaj   +1 more source

Effect of Time History on Long-Term Deformation of Gypseous Soils

open access: yesStudia Geotechnica et Mechanica, 2022
The time-dependent behavior of three gypseous soils was investigated. The soils had gypsum content of 66%, 44%, and 14.8%. The mineralogical and chemical properties of the soils were determined. Two series of tests were performed.
Fattah Mohammed Y.   +2 more
doaj   +1 more source

X-ray imaging and digital processing application in non-destructive assessing of melon seed quality

open access: yesJournal of Seed Science, 2020
: Non-destructive and high throughput methods have been developed for seed quality evaluation. The aim of this study was to relate parameters obtained from the free and automated analysis of digital radiographs of hybrid melons’ seeds to their seeds ...
André Dantas de Medeiros   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy