Zobrazeno 1 - 10
of 1 823
pro vyhledávání: '"ZHAO Yunfeng"'
Publikováno v:
Chengshi guidao jiaotong yanjiu, Vol 27, Iss 5, Pp 190-193 (2024)
Objective In the context of intelligent manufacturing, the MES (manufacturing execution system), targeting the production line execution layer, is a core component of the information management system. With the rapid promotion of lean production mode
Externí odkaz:
https://doaj.org/article/4d1f8f9cb28043f9b410bc591544086f
Publikováno v:
Meikuang Anquan, Vol 53, Iss 9, Pp 177-185 (2022)
In view of the problems of hydration cracking and powdering, uncontrollable gelation time and poor compressive strength of sodium silicate gel, poor fluidity, small penetration range and high cost of organic gel, combined with the characteristics of
Externí odkaz:
https://doaj.org/article/6b9faea47db04413b67bac4465811b71
Autor:
PEI Ziwei, LI Yubai, ZHANG Xiaoyan, ZHANG Lei, LYU Bing, LI Jingguang, ZHAO Yunfeng, WU Yongning
Publikováno v:
Zhongguo shipin weisheng zazhi, Vol 34, Iss 5, Pp 962-967 (2022)
ObjectiveThrough the 6th Chinese Total Diet Study (TDS), the contents of marker polychlorinated biphenyls (mPCBs) in representative Chinese dietary samples were obtained, and the dietary exposure assessment and temporal trend analysis of
Externí odkaz:
https://doaj.org/article/ef60408123e646d89695bca5c4055550
Publikováno v:
Zhongguo shipin weisheng zazhi, Vol 34, Iss 5, Pp 1104-1111 (2022)
There are many kinds of chemical hazards in food, and their contents are generally at trace and ultra trace levels. Because the food matrix is complex, it is very important to select appropriate sample preparation techniques to obtain reliable de
Externí odkaz:
https://doaj.org/article/921a8d0425984d7588419690508a0724
Publikováno v:
Zhongguo shipin weisheng zazhi, Vol 33, Iss 6, Pp 733-738 (2021)
ObjectiveThe migration of three kinds of UV absorbants [2-hydroxy-4-methoxybenzophenone (UV-9), 2-(2-hydroxy-5-methylphenyl)benzotriazole (UV-71) and 2-hydroxy-4-n-octyloxybenzophenone (UV-531)] in low density polyethylene (LDPE) food contact materia
Externí odkaz:
https://doaj.org/article/2b4c571e960f4858977f965b36a6358c
Publikováno v:
Zhongguo shipin weisheng zazhi, Vol 33, Iss 6, Pp 686-691 (2021)
ObjectiveReference material candidates of bisphenol A, bisphenol S, bisphenol F and bisphenol AF in infant formula milk powders were prepared, in order to provide technical basis and methodology for the further formation of certified reference materi
Externí odkaz:
https://doaj.org/article/2f35ca14379a454bb356084395c34e15
Publikováno v:
Zhongguo shipin weisheng zazhi, Vol 33, Iss 6, Pp 680-685 (2021)
ObjectiveTo develop an analytical method for determination of masked fumonisins in cereals by isotope dilution-ultra high performance liquid chromatography-tandem mass spectrometry.MethodsThe samples were extracted and diluted for determination of pa
Externí odkaz:
https://doaj.org/article/5654f471313c40978390a57539358890
Publikováno v:
Zhongguo shipin weisheng zazhi, Vol 33, Iss 6, Pp 716-722 (2021)
ObjectiveA method for the preparation and certification of the reference material of tenuazonic acid(TeA) and tentoxin (TEN) in wheat flour was developed.MethodsThe reference material of TeA and TEN in wheat flour was prepared from grain which natura
Externí odkaz:
https://doaj.org/article/5ff6b6d9b83c4bfea0707309d4f5e529
Publikováno v:
Zhongguo shipin weisheng zazhi, Vol 33, Iss 6, Pp 749-754 (2021)
ObjectiveTo prepare reference materials of dioxins and dioxin-like polychlorinated biphenyls in fish powder matrix.MethodsUsing fly ash to feed grass carp, the fish samples were peeled, homogenized, dried, packed and sterilized. After homogeneity and
Externí odkaz:
https://doaj.org/article/b7a8c85c73054f1b94fb4e22646da968
Publikováno v:
Zhongguo shipin weisheng zazhi, Vol 33, Iss 6, Pp 738-743 (2021)
ObjectiveTo investigate the zinc oxide nanoparticles (ZnO-Np) migration characteristics in the food contact material, namely polyvinyl chloride (PVC).MethodsIn this study, PVC/ZnO-Np composite with 1% w/w of ZnO-Np was prepared. Single-particle syste
Externí odkaz:
https://doaj.org/article/c14083a991b042e294fee65154dc5882