Results 141 to 150 of about 46,361 (266)

轻钢-钢纤维再生混凝土组合短柱轴心受压性能试验研究

Jianzhu Gangjiegou Jinzhan
提出了一种轻钢-钢纤维再生混凝土组合柱，为研究组合柱的轴心受压性能，设计了5组不同构造短柱试件进行轴压试验，包括1组型钢试件和4组组合柱试件。以截面构造、钢纤维掺入量和再生混凝土强度为变化参数，研究不同参数对组合柱破坏特征、荷载-位移曲线、承载力、刚度、延性的影响。结果表明：提出的轻钢-钢纤维再生混凝土组合柱构造可以改善轻钢柱的稳定性能，显著提高轻钢柱的承载能力；轻钢-钢纤维再生混凝土组合柱的承载能力随着钢纤维掺入量的增加而提高，钢纤维可约束再生混凝土裂缝开展，改善试件损伤和刚度退化 ...
边瑾靓, 陈志华, 刘爽, 杨新磊, 乔崎云   +4 more
doaj  

[Simultaneous determination of 15 bisphenols in prepared dishes by soild phase extraction purification-ultra performance liquid chromatography-tandem mass spectrometry]. [PDF]

Se Pu
Zhan ZY, Zhang Q, Tian SS, Zhao ZW, Dai YY, Liu BL.   +5 more
europepmc   +1 more source

稠油井大通径选注选采一体管柱的研制与应用

, 2013
郭洪军
openalex   +1 more source

大都市圏経済の支柱としてのコミュニティ経済 (特集 大都市における「街」の経済地理学)

, 2020
武志 杉山
openalex   +1 more source

Aphid parasitism alters induced plant responses allowing a hyperparasitoid to locate its hidden parasitoid host

New Phytologist, Volume 249, Issue 4, Page 2055-2070, February 2026.
Summary Plants typically host insect communities composed of multiple trophic levels that are intricately linked through interactions mediated by the shared food plant. Hyperparasitoids are top‐level carnivores in such systems, preying on parasitoid larvae developing inside herbivores. These hyperparasitoids can dramatically reduce the effectiveness of
Mitchel E. Bourne, Alessia Vitiello, Gabriel A. Charvalakis, Leandra Meerkerk, Berhane T. Weldegergis, Karen J. Kloth, Erik H. Poelman   +6 more
wiley   +1 more source

[Determination of 35 pyrrolizidine alkaloids in dried tea by ultra-high performance liquid chromatography- triple quadrupole mass spectrometry]. [PDF]

Se Pu
Dong L, Zhang XL, Yang C, Zhao JY, Wang XM, Chu YQ, Li XH.   +6 more
europepmc   +1 more source

稠油注蒸汽热采井套管柱预应力松驰效应分析

, 2013
王建军, 韩礼红, 闫相祯, 田志华, 栾志勇   +4 more
openalex   +1 more source

[Determination of ethylene oxide and acetaldehyde in petrochemical exhaust based on thermal desorption- gas chromatography-mass spectrometry]. [PDF]

Se Pu
Li YJ.
europepmc   +1 more source

Contemporary hybridization among Arabis floodplain species creates opportunities for adaptation

New Phytologist, Volume 249, Issue 3, Page 1542-1557, February 2026.
Summary Hybridization between closely related species is increasingly recognized as a major source of biodiversity. Yet, whether it can create advantageous trait combinations while purging harmful alleles remains unknown. To address this question, we studied Arabis nemorensis and Arabis sagittata, two endangered species that currently hybridize in a ...
Neda Rahnamae, Lukas Metzger, Lea Hördemann, Kevin Korfmann, Abdul Saboor Khan, Yasar Özoglan, Craig I. Dent, Samija Amar, Raúl Y. Wijfjes, Tahir Ali, Gregor Schmitz, Benjamin Stich, Aurelien Tellier, Juliette de Meaux   +13 more
wiley   +1 more source

[Simultaneous Analysis of Microcystins, Cylindrospermopsin, Anatoxin, and Nodularin in Lake Water by Liquid Chromatography-Tandem Mass Spectrometry]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Yuan G, Luo Q, Liu G, Qin X, Liu H, Lü Z, Jiang J.   +6 more
europepmc   +1 more source