Results 21 to 30 of about 2,666,318 (199)
Synergy between conventional phosphorus fire retardants and organically-modified clays can lead to fire retardancy of styrenics [PDF]
, 2003 Polystyrene–clay nanocomposites combined with phosphorous-containing fire retardants have been prepared and used to explore the thermal stability and mechanical properties of the polymer formed. The amounts of fire retardants and clay used were varied to
Chigwada, Grace, Wilkie, Charles A.
core +2 more sources
A More Flexible and Robust Feature Selection Algorithm
IEEE Access, 2023 With the increasing amount of real data, the challenges of large-scale model operations as well as poor generalization capacity, making selection of an appropriate feature set a significant concern. This study proposes ImprovedRFECV, an enhanced approach
Tianyi Tu +4 more
doaj +1 more source
Zhongguo dizhi zaihai yu fangzhi xuebao, 2022 Dangerous rock mass refers to the rock mass that is cut by the structural plane and fails under certain inducing factors. As one of the common natural geological disasters, it seriously affects the safety of human life and property in mountainous areas ...
Yonghai ZHANG +3 more
doaj +1 more source
Technical note: Bias and the quantification of stability [PDF]
, 1995 Research on bias in machine learning algorithms has generally been concerned with the impact of bias on predictive accuracy. We believe that there are other factors that should also play a role in the evaluation of bias.
Turney, Peter D.
core +1 more source
Extended Stability Evaluation of Selected Cathinones [PDF]
Frontiers in Chemistry, 2020 Understanding the stability of drugs in a forensic toxicology setting is critical for the evaluation of drug concentrations. Synthetic cathinones are new psychoactive substances structurally derived from cathinone, the psychoactive component of Catha edulis ("khat"), a shrub that is indigenous to the Middle East and East Africa.
Ciallella, Heather L. +3 more
openaire +5 more sources
Frontiers in Earth Science, 2023 Simple, fast, and reliable methods for the stability evaluation of tunnels can facilitate the construction and development of tunneling projects. The problems related to tunnel stability at this stage can be well analyzed via theoretical analysis method,
Jun Huang +4 more
doaj +1 more source
Shuiwen dizhi gongcheng dizhi, 2022 The rainfall-induced Dingjiapo landslide poses a potential threat to the safety of the proposed Yunyang to Kaizhou (Yunkai) expressway. In order to identify the characteristics of Dingjiapo landslide, field engineering geological mapping, drilling and ...
Aihong SHI +3 more
doaj +1 more source
Zhongguo dizhi zaihai yu fangzhi xuebao, 2023 The stability of newly failed soil slopes, particularly under the influence of heavy rainfall, presents a significant threat to the safety of on-site rescue personnel.
Zhongyuan CHEN, Zihang DAI, Wenbin JIAN
doaj +1 more source
Form-finding of pierced vaults and digital fabrication of scaled prototype
Curved and Layered Structures, 2021 The new serious consideration to masonry and non-metallic structures evidenced their direct prospective to be, even in the present days, advanced architectural and engineering solutions. In the present paper, a form finding for a cement based tessellated
Bertetto Amedeo Manuello +1 more
doaj +1 more source
Electrochemical Science Advances, 2022 We investigated the cobalt polyoxometalate catalyst Ba8[Co9(H2O)6(OH)3(HPO4)2(PW9O34)3] in oxygen evolution reaction for large‐scale water electrolysis.
Kim‐Marie Vetter +7 more
doaj +1 more source