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Criticality of the Rare Earth Elements: Current and Future Sources and Recycling

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ISBN: 9783038970170 9783038970187 Year: Pages: VIII, 164 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Geology --- Earth Sciences
Added to DOAB on : 2018-07-10 13:38:18
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Rare earth elements (REE) are critical to our modern way of life, although potential primary and secondary sources of these elements and the economics of the REE sector remain somewhat poorly understood. This Special Issue focuses on furthering our understanding of the criticality and potential sources of rare earth elements as well as the economics of the REE sector. The papers in this Special Issue provide further insight into the full life cycle of REE, information that is vital to ensuring the existence of sustainable sources of these critical elements into the future.

Elektrischer Transport durch Nanokontakte von Selten-Erd-Metallen

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Book Series: Experimental Condensed Matter Physics / Karlsruher Institut für Technologie, Physikalisches Institut ISSN: 21919925 ISBN: 9783731502098 Year: Volume: 10 Pages: IV, 90 p. DOI: 10.5445/KSP/1000040632 Language: GERMAN
Publisher: KIT Scientific Publishing
Subject: Physics (General)
Added to DOAB on : 2019-07-30 20:01:57
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In this book the electronic transport through rare-earth nanocontacts is investigated. These nanocontacts can be fabricated by the mechanically controlled break-junctions. The conductance through such a nanocontact is strongly influenced by the element's electronic structure. This is probably caused by the variable strength of localization of the 4f states.

Wine Traceability

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ISBN: 9783039217687 / 9783039217694 Year: Pages: 138 DOI: 10.3390/books978-3-03921-769-4 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Biology --- Biochemistry
Added to DOAB on : 2019-12-09 11:49:16
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Wine traceability is a central theme in the current world market where consumers are increasingly demanding the quality and origin of food and drink. The wine production chain and wine composition are generally controlled by different laws (International Organization of Vine and Wine (OIV), European Union (EU), and national governments) and need specific documentation. Nevertheless, wine production is subject to fraud. Consequently, the improvement of the methods applied to verify the origin and quality of wines is very important to protect wine consumers and producers. In this book, eight different papers—six research papers and two reviews—address the topic from different points of view.

Innovative Extraction Techniques and Hyphenated Instrument Configuration for Complex Matrices Analysis

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ISBN: 9783039210848 / 9783039210855 Year: Pages: 308 DOI: 10.3390/books978-3-03921-085-5 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- Chemical Engineering
Added to DOAB on : 2019-06-26 08:44:06
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The present Special Issue, “Innovative Extraction Techniques and Hyphenated Instrument Configuration for Complex Matrices Analysis”, aims to collect and to disseminate some of the most significant and recent contributions in the interdisciplinary area of innovative extraction procedures from complex matrices followed by validated analytical methods using hyphenated instrument configurations to support the optimization of the whole process and the scale-up possibility

Keywords

branched-chain keto acids --- serum --- muscle --- HPLC-Q-TOF/MS --- wood --- odor --- volatile organic compounds --- gas chromatography-olfactometry --- Wuyi Rock tea --- quality --- UPLC-QTOF MS --- UPLC-QqQ MS --- metabolite profiling --- metabolomics --- cluster analysis --- cultivars --- Lycium ruthenicun --- flavonoid --- ruthenicunoid A --- SIRT1 --- Asphodeline lutea --- HPLC-PDA --- heavy metals --- tyrosinase --- diabetes --- neurodegenerative disease --- color analysis --- pigments --- MAE --- HPLC-PDA --- SFE --- Thymus algeriensis --- rare earth elements --- flow injection --- inductively coupled plasma-mass spectrometry --- seawater --- Hericium erinaceuns mycelium --- high-speed counter-current chromatography (HSCCC) --- genistein --- daidzein --- Fe3O4 --- modification --- alginate --- alkaloid --- ultrasound assisted extraction --- gelatin --- actinidin --- bovine hide --- physicochemical properties --- gel strength --- Semen Cuscutae --- ultra-high-performance liquid chromatography coupled to electrospray ionization mass spectrometry --- chlorogenic acids --- flavonoids --- steamed Panax notoginseng --- saponins --- extraction --- optimization --- antioxidant activity --- response surface methodology --- hematopoiesis --- microwave processing --- response surface methodology --- minor ginsenosides --- blood-enriching activity --- hemostatic activity --- ionic liquids --- sample preparation --- microextraction --- solid-phase microextraction --- dispersive liquid-liquid microextraction --- single-drop microextraction --- stir bar sorptive extraction --- stir cake sorptive extraction --- rosuvastatin --- metformin --- HILIC --- LC-MS --- therapeutic drug monitoring --- oolong tea --- Tieguanyin tea cultivar --- metabolite profiling --- UPLC-QTOF MS --- metabolomics --- Ajuga genevensis --- near-infrared spectroscopy --- dry extract --- fluid bed process --- microNIR --- in-line monitoring --- total polyphenolic content --- antioxidant --- flavonoids --- mouse melanoma B16 cells --- Panax notoginseng --- surfactant --- n/a --- ultra-high-performance liquid chromatography tandem mass spectrometry --- GHB --- GHB glucuronide --- nails --- endogenous values --- walnut septum --- polyphenols --- phytosterols --- HPLC-MS/MS --- Ultra-Turrax extraction --- biological activity --- antioxidant activity --- experimental design --- optimization --- phytochemicals

Polymetallic Metallogenic System

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ISBN: 9783039212934 / 9783039212941 Year: Pages: 538 DOI: 10.3390/books978-3-03921-294-1 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General)
Added to DOAB on : 2019-12-09 16:10:12
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Abstract

Within the last decade, the high and continuing demand for precious and base metals, as well as critical elements, has prompted a global rush on a scale never before seen. This eventually resulted in the demand for considerable innovation and improvement in mineral deposit genetic modelling and ore formation regimes for the many different types of gold deposits, now recognized, and paralleled by the wide employment of exploration techniques and a rapid expansion of geological databases. This Special Issue will show case studies of porphyry polymetal systems, orogenic gold formations, water–rock reaction, ore-forming structure evolution, mineralogy and petrology of ore deposit, ore formation regime, geochronology and geochemistry of ore deposit, ore-forming evolution, mineral exploration and cutting-edge technology in ore deposit study.

Keywords

W–Sn skarn --- whole-rock geochemistry --- Huangshaping --- Shizhuyuan --- Xianghualing --- Rare-Earth Elements --- C–O isotopes --- hydrothermal calcite --- ore-forming processes --- Phapon gold deposit --- oxidation state --- hydrous melts --- constraints on mineralization --- Beiya Au deposit --- SW China --- zircon geochronology --- magmatic oxygen fugacity --- petrogenesis --- Zaozigou deposit --- West Qinling --- archean basement --- quartz vein --- hydrothermal alteration halo --- Pinglidian gold deposit --- Jiaodong --- geochemistry --- U–Pb zircon age --- Sr–Nd isotopes --- Haoyaoerhudong gabbro --- Inner Mongolia --- geochronology --- Hf isotopes --- petrogenesis --- paleo-Tethyan ocean closure --- Zaorendao gold deposit --- West Qinling --- syenite --- post-collisional --- niobium mineralization --- Saima deposit --- Liaoning Province --- invisible gold --- visible gold --- LA-ICP-MS --- Yangshan gold belt --- West Qinling --- zircon U-Pb dating --- molybdenite Re-Os dating --- zircon Hf isotopes --- Weilasituo Sn-polymetallic deposit --- Inner Mongolia --- orogenic-gold deposit --- mineral geo-thermometry --- physicochemical condition of mineralization --- Zhengchong gold deposit --- Jiangnan orogenic belt --- lithospheric architecture --- metallogenesis --- Hf-Nd isotopic mapping --- Liaodong Peninsula --- North China Craton --- zircon U–Pb geochronology --- Sr–Nd–Pb–Hf isotopes --- low Sr and high Yb A2-type granite --- Xianghualing --- South China --- fluid inclusion --- stable isotopes --- gold deposition --- Sanshandao gold deposit --- Jiaodong --- fluid inclusions --- H–O isotope --- immiscibility --- water–rock interaction --- Sizhuang gold deposit --- Jiaodong Peninsula --- China --- Pulang porphyry Cu (–Mo–Au) deposit --- LA-ICP-MS zircon U–Pb dating --- molybdenite Re–Os dating --- high-silica adakitic rocks (HSA) --- Northwestern Yunnan Province --- C–H–O isotopes --- fluid inclusion --- Koka deposit --- orogenic gold deposit --- ore shoots --- structural control --- geostatistics --- Sizhuang gold deposit --- Jiaodong Peninsula --- skarn mineralogy --- high fugacity --- garnet Sm–Nd dating --- Late Cretaceous --- Hongshan skarn deposit --- mantle branch --- metallogenesis --- ore-controlling structures --- metallogenic rule --- ore prospecting target --- Jiaodong area --- zircon U–Pb dating --- Re–Os dating --- middle–late Jurassic --- Mo-polymetallic deposit --- Great Xing’an Range --- Dongbulage --- A-type granite --- tin mineralization --- Tiantangshan tin polymetallic deposit --- SE China --- Chishan alkaline complex --- rock geochemistry --- zircon U–Pb dating --- Lu–Hf isotopes --- Hegenshan-Heihe suture zone --- Cu-Au hydrothermal mineralization --- Hongyan deposit --- Permian A-type granite --- granite petrogenesis --- magmatic oxygen fugacity --- post-collisional slab break-off --- quartz --- trace element --- precipitation mechanism --- in situ study --- sericite --- acidity --- formation temperature --- n/a

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