Results 31 to 40 of about 3,911 (219)

Multiscale understanding of tricalcium silicate hydration reactions [PDF]

, 2017
Tricalcium silicate, the main constituent of Portland cement, hydrates to produce crystalline calcium hydroxide and calcium-silicate-hydrates (C-S-H) nanocrystalline gel. This hydration reaction is poorly understood at the nanoscale.
Cuesta-García, Ana María, Dapiaggi, Monica, García-Aranda, Miguel Ángel, Gómez-de-la-Torre, María de los Ángeles, Londono-Zuluaga, Diana, Sanfélix, Susana G., Santacruz-Cruz, María Isabel, Vallcorba, Oriol, Zea-Garcia, Jesus D.   +8 more
core   +4 more sources

Rapid Determination of 3 Components With Different Polarities in Medicinal Mushrooms by Multistep Matrix Solid-Phase Dispersion and High-Performance Liquid Chromatography Analysis

Natural Product Communications, 2021
In this study, a multistep matrix solid-phase dispersion (MSPD) combining with a high-performance liquid chromatography method was developed for assaying 3 components of different polarities (mannitol, adenosine, and ergosterol) from mushroom samples ...
Zhengming Qian, Zi Wu, Chunhong Li, ChangLiang Yao, Guoying Tan, Wenjia Li, De-an Guo   +6 more
doaj   +1 more source

Quantitative determination of trichothecenes in breadsticks by gas chromatography-triple quadrupole tandem mass spectrometry [PDF]

, 2014
Breadsticks are pencil-sized sticks of dry bread widely consumed as a pre-meal appetiser. They are basically wheat-based snacks, which makes them a good matrix to evaluate mycotoxin contamination, since wheat is very susceptible to fungal attack. In this
Blesa J, EC No 1126/2007, EC No 1881/2006, EC No 401/2006, Guillermina Font, Houda Berrada, Juan Carlos Moltó, SANCO, SCF, Yelko Rodríguez-Carrasco   +9 more
core   +2 more sources

Rapid Screening Alpha-Glucosidase Inhibitors from Polygoni Vivipari Rhizoma by Multi-Step Matrix Solid-Phase Dispersion, Ultrafiltration and HPLC

Molecules, 2021
Polygoni Vivipari Rhizoma (PVR), the dried root of Polygonum viviparum, has been used as herbal medicine in China for a long time. In the present study, a new method based on multi-step matrix solid-phase dispersion (MSPD), ultrafiltration and high ...
Haoxiang Li, Zhuobin He, Qianhui Shen, Weifeng Fan, Guoying Tan, Yuansheng Zou, Quanxi Mei, Zhengming Qian   +7 more
doaj   +1 more source

Fitomassa de adubos verdes e controle de plantas daninhas em diferentes densidades populacionias de leguminosas. [PDF]

, 1999
O objetivo deste trabalho foi avaliar a fitomassa de calopogônio, mucuna-preta, mucunarajada,feijão-de-porco, guandu de porte alto, Crotalaria spectabilis e C. breviflora sob diferentes densidades de semeadura (10, 20, 40, 80 e 160 sementes viáveis m-2),
ABBOUD A.C.S., ALMEIDA F.S., ALMEIDA F.S., Antônio Carlos Barreto, BENASSI A.C., BRAGA J.M., BRAGAGNOLO N., CALEGARI A., DERPSCH R., GALANTINI J.A., HAYNES J.L., HAYNES J.L., HOLLIDAY R., JACKSON M.L., João Emídio Filho, KUO S., LAL R., LASSUS C. de, Marcelo Ferreira Fernandes, MIYASAKA S., RAIJ B. van., REEVES D.W., SILVA P.R.F. da, SILVA P.R.F. da, TESTA V.M., TOMAS J.C., WILDNER L.P.   +26 more
core   +3 more sources

Numerical Analysis of the Horvath–Kawazoe Equation — The Adsorption of Nitrogen, Argon, Benzene, Carbon Tetrachloride and Sulphur Hexafluoride

Adsorption Science & Technology, 2002
A previously proposed numerical procedure based on the Horvath–Kawazoe (HK) model for estimating the MPSD (micropore size distribution) from a single nitrogen adsorption isotherm was developed.
Piotr Kowalczyk, Artur P. Terzyk, Piotr A. Gauden, Gerhard Rychlicki   +3 more
doaj   +1 more source

Profiling the Fatty Acids Content of Ornamental Camellia Seeds Cultivated in Galicia by an Optimized Matrix Solid-Phase Dispersion Extraction

Bioengineering, 2017
Camellia (genus of flowering plants of fam. Theaceae) is one of the main crops in Asia, where tea and oil from leaves and seeds have been utilized for thousands of years.
Carmen Garcia-Jares, Marta Sanchez-Nande, Juan Pablo Lamas, Marta Lores   +3 more
doaj   +1 more source

Development of a Matrix Solid-Phase Dispersion Extraction Combined with UPLC/Q-TOF-MS for Determination of Phenolics and Terpenoids from the Euphorbia fischeriana

Molecules, 2017
A method based on a simplified extraction by matrix solid phase dispersion (MSPD) followed by ultra-performance liquid chromatography coupled with the quadrupole time-of-flight tandem mass spectrometry (UPLC/Q-TOF-MS) determination is validated for ...
Wenjing Li, Yu Lin, Yuchun Wang, Bo Hong
doaj   +1 more source

Generalising Random Forest Parameter Optimisation to Include Stability and Cost

, 2017
Random forests are among the most popular classification and regression methods used in industrial applications. To be effective, the parameters of random forests must be carefully tuned.
Cardoso, Angelo, Chamberlain, Benjamin Paul, Little, Duncan A., Liu, C. H. Bryan   +3 more
core   +1 more source

Glicerina bruta em suplementos para bovinos de corte a pasto no período seco. [PDF]

, 2017
O objetivo deste trabalho foi avaliar o efeito da substituição do milho pela glicerina bruta (GB) sobre os parâmetros nutricionais e o desempenho de bovinos de corte em pastagem de Urochloa brizantha 'Marandu', no período seco.
BOTINI, L. A., HOFFMANN, A., MENESES, D. M. de, MORAES, E. H. B. K. de, MORAES, K. A. K. de, PAULA, D. C. de, PINA, D. dos S., SOCREPPA, L. M., STINGUEL, H.   +8 more
core   +1 more source