Results 81 to 90 of about 3,303 (287)

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan, Rhena Wulf, Till M. J. Stadtmüller, Christos G. Aneziris, Tobias M. Fieback   +4 more
wiley   +1 more source

Biofilm dynamic changes in drip irrigation emitter flow channels using reclaimed water

Agricultural Water Management
Reusing reclaimed water through drip irrigation offers an effective way to overcome freshwater scarcity. However, biofilm accumulation in the flow channel of drip emitters is the primary obstacle.
Changjian Ma, Mengyao Li, Peng Hou, Xuejun Wang, Zeqiang Sun, Yan Li, Yang Xiao, Yunkai Li   +7 more
doaj   +1 more source

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

Advanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm, Lukas Knöchel, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +5 more
wiley   +1 more source

From physical to coupled physical–chemical clogging: the role of nitrogen fertilizers in high-sediment water drip irrigation systems

Results in Engineering
High-sediment water drip irrigation (HSWDIS) provides an important approach to alleviate water shortages in arid regions, yet emitter clogging remains the primary obstacle limiting its sustainable application.
Bowen Li, Enkai Cao, Qichao Zhang, Rui Zong, Zeqiang Sun, Changjian Ma, Yang Xiao, Yan Li   +7 more
doaj   +1 more source

Irrigação localizada subsuperfical: gotejador convencional e novo protótipo Subsurface drip irrigation: conventional dripper and new prototype

Revista Brasileira de Engenharia Agrícola e Ambiental, 2012
A irrigação por gotejamento subsuperficial, que utiliza um sistema protetor do emissor para evitar entupimento do mesmo por raiz e partículas sólida do solo, pode ser viável em relação a um sistema convencional.
Wanderley de J. Souza, Tarlei A. Botrel, Rubens D. Coelho, Nilson A. V. Nova   +3 more
doaj   +1 more source

Design and experimental validation of a compact collimated Knudsen source [PDF]

, 2015
In this paper we discuss the design and performance of a collimated Knudsen source which has the benefit of a simple design over recirculating sources.
Haaf, Gijs ten, Mutsaers, Peter H A, Vredenbregt, Edgar J D, Wouters, Steinar H W   +3 more
core   +2 more sources

Exploring Dipolar Dynamics and Ionic Transport in Metal‐Organic Frameworks: Experimental and Theoretical Insights

Advanced Functional Materials, EarlyView.
In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund, Arthur Schulz, Peter Lunkenheimer, Maryana Kraft, Thomas Bergler, Harald Oberhofer, Dirk Volkmer   +6 more
wiley   +1 more source

Effect of fertilization on emitter clogging in drip irrigation using high sediment water: Perspective of sediment discharge capacity

Agricultural Water Management
Emitter clogging is a major issue that restricts drip irrigation technology with high-sediment loaded water. Traditional anti-clogging method using water filtration is not only costly but also consumes an excessive amount of energy. This study provided a
Peng Hou, Lu Liu, Muhammad Tahir, Yan Li, Xuejun Wang, Ning Shi, Yang Xiao, Changjian Ma, Yunkai Li   +8 more
doaj   +1 more source

The Clogging Rules of Ceramic Emitter in Irrigation Using Saline Water with Different EC

Agronomy, 2019
Infiltration irrigation with saline water is a more effective method than drip irrigation to alleviate water scarcity worldwide, but so far, no report has discussed the clogging rules of ceramic emitters, a major component of infiltration irrigation ...
Huifang Chen, Yanfang Liu, Junying Chen, Lin Zhang, Yaohui Cai, Haiying Chen, Shoujun Wu, Mingu Zhou   +7 more
doaj   +1 more source

In Situ Constructed Magnetic Core‐Shell Hydrogen‐Bonded Organic Framework‐on‐Metal–Organic Framework Structure: an Efficient Catalyst for Peroxymonosulfate Activation

Advanced Functional Materials, EarlyView.
In this work, a magnetic core‐shell catalyst (HOF‐on‐Fe3O4/ZIF‐67) is successfully synthesized, consisting of a metal–organic framework (ZIF‐67) with magnetic Fe3O4 as the core and a porous hydrogen‐bonded organic framework (HOF) as the shell. The catalyst efficiently activated peroxymonosulfate, resulting in rapid and effective removal of water ...
Yingying Du, Chenhui Ding, Chao Deng, Susanta Banerjee, Seema Agarwal   +4 more
wiley   +1 more source