Zobrazeno 1 - 10
of 6 145
pro vyhledávání: '"Fineness"'
Publikováno v:
Kuangchan zonghe liyong, Vol 45, Iss 5, Pp 24-30 (2024)
This is an article in the field of mineral processing engineering. The volcanic bertrandite ore used in this study was obtained from Xinjiang, China. Mineral and multi-elemental compositions were characterized to identify the disseminated grain size
Externí odkaz:
https://doaj.org/article/24b3a5c420d349029ca36f4bebe30ee0
Autor:
Zhaohui LI, Weining XIE, Shengmao LIN, Haidi JIANG, Fengbin ZHANG, Shuai WANG, Zhihai TAN, Yaqun HE, Xiaolu SUN
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 6, Pp 261-269 (2024)
The change of water occurrence form and content in coal will change the physical characteristics and pore structure of coal, and then affect its crushing process.In order to study the effect of moisture contained in coal on on the crushing behavior o
Externí odkaz:
https://doaj.org/article/181b273e47d14eb288db4c247ed39d9e
Publikováno v:
Journal of Materials and Engineering Structures, Vol 11, Iss 1, Pp 33-47 (2024)
The aim of this experimental work is to analyze the effect of mineral additions fineness on the hydration of self-compacting mortars, as well as their behavior in the fresh and hardened states. To do this, cement was partially replaced with a fixed r
Externí odkaz:
https://doaj.org/article/5bad38520b644733b98a74abda2aab3a
Autor:
Ziqing YAN, Wenjie SHI, Pengtao ZHANG, Yongjun WANG, Yubao SHAO, Xin HUANG, Yu SONG, Jun TAN, Zhihua WANG
Publikováno v:
地质科技通报, Vol 43, Iss 2, Pp 156-174 (2024)
Objective The Dayingezhuang gold deposit in the middle of the Zhaoping metallogenic belt represents a typical altered-rock type deposit with a giant Au reserve of 283 tons on the Jiaodong Peninsula. The genetic type of the deposit is still controvers
Externí odkaz:
https://doaj.org/article/e4d3859e2c2f4b35ae09d1138180eaca
Autor:
Addisu Ferede Tesema, Surendra Gautam, Md Abu Sayeed, Christopher Turner, Christopher D. Delhom, Noureddine Abidi
Publikováno v:
Journal of Natural Fibers, Vol 21, Iss 1 (2024)
Existing methods for measuring fineness are time-consuming, tedious, and impractical to evaluate many samples. For this reason, the Textile Industry has sought a rapid, accurate, and reliable instrument to determine fiber fineness. Recently, the Opti
Externí odkaz:
https://doaj.org/article/d1edb6764aca428cab4e5f9b95d7031c
Publikováno v:
Case Studies in Construction Materials, Vol 21, Iss , Pp e03622- (2024)
Seawater coral aggregate concrete (SCAC) development has effectively addressed the issues of raw material shortage and construction period delay in the construction of remote islands and reefs. In the present study, seawater coral sand engineered cem
Externí odkaz:
https://doaj.org/article/edef960afc654b5eb4ff6d109ee6e517
Publikováno v:
Case Studies in Construction Materials, Vol 21, Iss , Pp e03465- (2024)
In this research, sustainable sand was developed using desert sand with recycled fine aggregate. Developing sustainable sand can solve environmental issues caused by excessive river sand mining. For this purpose, four types of sustainable sand have b
Externí odkaz:
https://doaj.org/article/f474f1416c8a4207815a834e189afed7
Autor:
Tobias Schack, Michael Haist
Publikováno v:
Case Studies in Construction Materials, Vol 20, Iss , Pp e03154- (2024)
The production of concrete and especially of cement clinker is associated with significant CO2 emissions. In order to reduce these emissions, various measures have been introduced in recent years, including energy efficiency, the use of alternative f
Externí odkaz:
https://doaj.org/article/34cbf8c777654ece9051b4e57845fa7a
Publikováno v:
Case Studies in Construction Materials, Vol 20, Iss , Pp e03149- (2024)
This study investigated the effects of ordinary limestone powder (OLP) and two ultrafine limestone powders (ULPs) on the early and late age hydration characteristics of cement pastes with low water-to-binder (w/b) ratios of 0.21. The compressive stre
Externí odkaz:
https://doaj.org/article/eed745f9be254d778b1b85b8be8c7ccb
Autor:
Xue Pu, Shengchao Ma, Bingru Zhao, Sen Tang, Qingwei Lu, Wenna Liu, Yaqian Wang, Yunlin Cen, Cuiling Wu, Xuefeng Fu
Publikováno v:
Frontiers in Genetics, Vol 15 (2024)
Wool plays an irreplaceable role in the lives of livestock and the textile industry. The variety of hair quality and shape leads to the diversity of its functions and applications, and the finer wool has a higher economic value. In this study, 10 coa
Externí odkaz:
https://doaj.org/article/9a73092edb08498bb3cb536d2cbe8078