Results 61 to 70 of about 398,560 (209)

An econometric model of the world nickel industry [PDF]

The Third United Nations Conference on the Law of the Sea has been concluded in the spring of 1982 with the adoption of a convention text. The acceptance of this text (signature and ratification) by the necessary number of states is still highly ...
Rafati, Mohammed R.
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Syn-to post-orogenic mineralization in the Shuangkoushan Au–Ag–Pb deposit, North Qaidam: insights from H–O–S isotopes and U–Pb geochronology

Frontiers in Earth Science
The Shuangkoushan Au–Ag–Pb deposits, hosted within meta-basaltic rocks of the Tanjianshan Group in the North Qaidam Orogenic Belt, northwest China, present significant insights into syn-to post-orogenic mineralization processes.
Junzhen Yu, Junzhen Yu, Dexian Li, Dexian Li, Youye Zheng, Youye Zheng, Bo Ma, Bo Ma, Jian Wang, Jian Wang, Guomei Shi, Guomei Shi, Rongke Xu, Junaid Khan, Asma Tahir   +14 more
doaj   +1 more source

https://rie.cujae.edu.cu/index.php/RIE/article/view/545/602

Revista Científica de Ingeniería Energética, 2018
Los procesos de transferencia de energía térmica son problemas importantes a resolver en el campo de la ingeniería. En este ámbito, los intercambiadores de calor son uno de los equipos más usados en la industria.
Andres Adrian Sánchez Escalona, Ever Góngora Leyva   +1 more
doaj  

Adsorción de escandio del licor residual WL con carbón activado modificado con soluciones de H3PO4

Minería y Geología, 2023
Se exponen los resultados del efecto de la oxidación de un carbón activado virgen y de ese mismo carbón, pero regenerado luego de ser declarado agotado en el proceso de producción de ron, empleando soluciones de ácido fosfórico de concentración de 1 mol ...
Aymee Reyes-Dalmau, Yudith González-Díaz, Eidier Góngora-Blet, Leonel Garcell-Puyáns, Marian Rigñack-Delgado   +4 more
doaj  

Nickel-Catalyzed Molybdenum-Promoted Carbonylative Synthesis of Benzophenones [PDF]

, 2018
A nickel-catalyzed molybdenum-promoted carbonylative coupling reaction for the synthesis of benzophenones from aryl iodides has been developed. Various substituted diaryl ketones were synthesized in moderate to excellent yields under CO-gas-free ...
Fu-Peng Wu (4388440), Xiao-Feng Wu (1617313), Da Li (194457), Xinxin Qi (4388437), Jun Ying (129597), Jin-Bao Peng (1652266)   +5 more
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Albert Nickel Oral History Interview [PDF]

, 1987
Oral History Interview by Ken Verdoia with Albert Nickel. Mr. Nickel worked with his father in the Delta mortuary during World War II, and, as a result, had an unusual but ongoing involvement with Topaz. Mr.
Nickel, Albert; Verdoia, Ken
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Effects of oxidation and hot corrosion in a nickel disc alloy [PDF]

, 2008
This paper describes work to study oxidation and hot corrosion damage in nickel disc alloy RR1000. Oxidation damage has been characterised via mass change data from thermogravimetric analyses at temperatures from 700 to 800 ºC and cyclic oxidation ...
Encinas-Oropesa, Adriana, J.R. Nicholls, N.J. Simms, Hardy, M. C., A.J. Leggett, A. Encinas-Oropesa, M.C. Hardy, Leggett, A. J., Nicholls, John R., G.L. Drew, Drew, G. L., Simms, Nigel J.   +11 more
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Caracterización de fases por procesamiento digital de imágenes en un aluminio soldado con gas y tungsteno

Ciencia & Futuro
Se realizó la caracterización de fases por procesamiento digital de imágenes en una aleación de aluminio del tipo AA 6061 obtenida mediante proceso de soldadura de gas y tungsteno (GTAW). Se realizó una junta a tope sin preparación de bordes, en planchas
Erlán De la Rosa Barthelemy, Adriana González Pérez, Rodney E. Correa Suárez   +2 more
doaj  

Application of an Ultrasonic Vibration-Assisted Drawing Process to a Submersible Linear Motor Core

Machines
The cylindrical submerged linear motor with the primary core used in traditional welded stacked 50ww470 non-silicon steel sheets faces many shortcomings. These include its structure being complex and difficult to manufacture, the process requiring stages
Han Hu, Miaoyan Cao, Pengfei Song, Lijun Wu, Xubin Han   +4 more
doaj   +1 more source

Associations among Wine Grape Microbiome, Metabolome, and Fermentation Behavior Suggest Microbial Contribution to Regional Wine Characteristics

mBio, 2016
Regionally distinct wine characteristics (terroir) are an important aspect of wine production and consumer appreciation. Microbial activity is an integral part of wine production, and grape and wine microbiota present regionally defined patterns ...
Nicholas A. Bokulich, Thomas S. Collins, Chad Masarweh, Greg Allen, Hildegarde Heymann, Susan E. Ebeler, David A. Mills   +6 more
doaj   +1 more source