Results 171 to 180 of about 33,716 (264)

Hydrogen‐Based Reduction of Hematitic Iron Ore in a Fluidized Bed Kinetic Reactor at Elevated Pressures

open access: yessteel research international, EarlyView.
This study investigates the reduction behavior of two international iron ores, including a synthetic hematite produced by oxidation of magnetite, in a novel fluidized‐bed kinetic reactor at elevated pressures. The reduction takes place at various temperatures (650°C, 700°C, and 750°C), and various hydrogen partial pressures (30, 55, and 80 vol% H2 ...
Valentina Nigitz   +5 more
wiley   +1 more source

Geopolymers as a Sustainable Chemical Platform: From Building Materials to Advanced Functional Applications

open access: yesThe Chemical Record, EarlyView.
Geopolymers are presented as a chemically programmable platform whose properties emerge from activation chemistry, nanoscale disorder, and interfacial design. The review highlights sustainability challenges, the shift toward nanoengineered and hybrid systems, and the rise of halloysite‐based architectures enabling tunable structures across scales for ...
Martina Maria Calvino   +4 more
wiley   +1 more source

Multisystemic paracoccidioidomycosis with rare retinal and central nervous system involvement: a case report. [PDF]

open access: yesMed Mycol Case Rep
Dos Santos Miguel S   +5 more
europepmc   +1 more source

Cyclometalated Au(III) Complexes With C*N^N, N^C*N, and C*N Ligands Through C–H Activation

open access: yesZeitschrift für anorganische und allgemeine Chemie, EarlyView.
The complexes [Au(QPhPy)Cl][AuCl4], [Au(QPhCF3Py)Cl][AuCl4], [Au(QPhtBuPy)Cl][AuCl4], [Au(QPhPy)Cl]Cl, [Au(QPyPh)Cl2], [Au(QPyPhCF3)Cl2], [Au(QPyPhtBu)Cl2], [Au(bpyAn)Cl][AuCl4], and [Au(phenAn)Cl][AuCl4] (Q = 8‐quinolinyl, Ph = phenyl, An = anthracen‐9‐yl, Py = pyridyl, bpy = 2,2′′‐bipyridyl, phen = 1,10‐phenanthrolinyl) containing N*C^N, N*C, and NN ...
Pascal L. Jurzick   +5 more
wiley   +1 more source

Dorsum sellae meningioma resected via mini-combined transpetrosal approach: illustrative case. [PDF]

open access: yesJ Neurosurg Case Lessons
de Los Santos V   +6 more
europepmc   +1 more source

Research on Ultra‐Wideband Pulse Current Method for DC Partial Discharge Measurement

open access: yesHigh Voltage, EarlyView.
ABSTRACT The conventional pulse current method is commonly used in AC or DC withstand voltage tests with partial discharge (PD) monitoring. Because of its relatively narrow measurement bandwidth, this method tends to ignore critical information in PD waveforms, making it difficult to eliminate pulse‐type interference under DC voltage conditions, where ...
Kaining Hou   +4 more
wiley   +1 more source

Sino‐Mexican Encounters Before the ‘Diplomatic Opening’: Exhibition Diplomacy and Grassroots Friendship in the 1960s

open access: yesHistory, EarlyView.
Abstract During the 1960s, Mexico's Institutional Revolutionary Party (PRI) embraced Chinese overtures for a commercial opening as consistent with its anti‐imperialist posture, thereby foreshadowing the diplomatic opening to China in 1972. Yet this professed ideological pluralism was eclipsed by an underlying allegiance to the United States' anti ...
YIXIN TIAN
wiley   +1 more source

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