Results 71 to 80 of about 7,523 (301)

Correcting Apparent Priming Bias Unveils Fertilizer Nitrogen‐Risk Archetypes of Surplus and Depletion Across Asian Rice Systems

Advanced Science, EarlyView.
Correcting the apparent priming effect resolves systematic biases in Asian rice fertilizer nitrogen accounting. Net soil retention drops below 7%, while 48% of fertilizer escapes, inflicting US$98.53 billion in annual reactive‐nitrogen damages. High‐resolution mapping uncovers N‐risk archetypes across 42% of the rice area, delivering a spatially ...
Xiuyun Liu, Siyuan Cai, Longlong Xia, Jagdish K. Ladha, Xiaoyuan Yan, Xu Zhao   +5 more
wiley   +1 more source

Effect of modified investment and casting system on the recasting properties of high-gold alloy

Journal of Dental Sciences
Background/purpose: High gold (Au) alloys have many advantages, such as good mechanical properties and stable chemical properties for dental restoration.
Pei-Ling Lai, Chun-Chen Huang, Po-Sung Fu, Jen-Hao Chen, Ting-Hsun Lan, Wen-Cheng Chen, Chun-Cheng Hung   +6 more
doaj   +1 more source

Diastereomeric Monomers Enable Anion‐Exchange Membranes With Controlled Local Polymer Backbone Flexibility and High Conductivity

Advanced Science, EarlyView.
Stereochemistry enables control of ion‐exchange membrane properties via local backbone flexibility without altering the polymer composition. Syn‐enriched membranes show higher water uptake and improved water‐electrolysis performance, whereas anti‐enriched membranes exhibit higher hydration efficiency and improved mechanical properties.
Si Chen, Xuchen Lyu, Triet Nguyen Dai Luong, Patric Jannasch   +3 more
wiley   +1 more source

Waste to shield: Tailoring cordierite/mullite/zircon composites for radiation protection through controlled sintering and Y2O3 addition

Nuclear Engineering and Technology
In this study, investment casting shell waste successfully utilized to produce cordierite/mullite/zircon composites. Green pellets, consisting of investment casting shell waste, alumina, and magnesia, were prepared and sintered at temperatures between ...
Celal Avcıoğlu, Recep Artır
doaj   +1 more source

Mesostructural Design and Manufacturing of Open-Pore Metal Foams by Investment Casting

Advances in Materials Science and Engineering, 2014
The present paper describes the manufacturing process of open-pore metal foams by investment casting and the mesostructural/morphological evolution resulting from a new technique of modifying the precursor. By this technique, the precursor is coated with
Alexander Martin Matz, Bettina Stefanie Mocker, Daniel Wyn Müller, Norbert Jost, Gunther Eggeler   +4 more
doaj   +1 more source

Overcoming Interfacial Hurdles in Solid‐State Aluminum Batteries for Safe and Energy‐Dense Storage

Advanced Science, EarlyView.
Solid‐state aluminum batteries (SSABs) promise high energy density and intrinsic safety but face severe solid–solid interfacial challenges. This review reveals the three core hurdles—anode passivation, cathode contact loss, and electrolyte grain boundary resistance and discusses strategies including artificial interphases, alloying, and composite ...
Yunlei Wang, Xiaogang Zhang, Mingguang Wang, Yifan Wu, Shitao Dou, Taibin Wu   +5 more
wiley   +1 more source

Present state of investment casting technology [PDF]

, 2017
.The bachelor’s thesis is focused on the most modern and latest trends used in investment casting technology. The aim of this bachelor thesis is literary research on the most modern equipment that used wax pattern manufacture, ceramic shell manufacture ...
Bártů, Zbyněk
core  

Adaptive Responses of Tropical Crops: A Multi‐Scale Omics Integrated Perspective

Advanced Science, EarlyView.
Tropical crops integrate genomic, morphological, physiological, and ecological adaptations to thrive under extreme and variable environments. This review highlights how natural selection, domestication, and breeding shape stress resilience, resource‐use strategies, and productivity in sugarcane, banana, cassava, rubber and oil palm, offering new routes
Peilin Wang, Chenhui Li, Dongjiao Wang, Qibin Wu, Zhen Zeng, Huiming Guo, Han Cheng, Songbi Chen, Hongxing Cao, Hongmei Cheng, Jianghui Xie, Youxiong Que   +11 more
wiley   +1 more source

Production of turbine wheel with investment casting [PDF]

, 2018
TThis bachelor thesis is devoted to the production of turbine wheels by the method investment casting. It mensions the basic principles of investment casting, description of production of molds for wax models, choice of wax blends, materials used in the ...
Fendrich, Tomáš
core  

Formation of topologically closed packed phases within CMSX-4 single crystals produced by additive manufacturing

Materials Letters: X, 2019
The homogeneity of single crystals produced by additive manufacturing (AM) is much higher than that of single crystals produced by the standard investment casting process.
J. Pistor, C. Körner
doaj   +1 more source