Results 111 to 120 of about 29,331,473 (379)

Quantitative Study of Spodumene by Time-of-Flight Secondary Ion Mass Spectrometry (tof-SIMS)

Molecules
In this paper, the quantitative feasibility of time-of-flight secondary ion mass spectrometry (tof-SIMS) for major and minor elements in spodumene was evaluated in terms of calibration method with a matrix-matched or non-matrix-matched standard and an ...
Xijuan Tan
doaj   +1 more source

Characterization of the Noise in Secondary Ion Mass Spectrometry Depth Profiles

, 1996
The noise in the depth profiles of secondary ion mass spectrometry (SIMS) is studied using different samples under various experimental conditions. Despite the noise contributions from various parts of the dynamic SIMS process, its overall character ...
Clegg J. B., Cooke G. A., D. P. Chu, Dowsett M. G., G. A. Cooke, M. G. Dowsett, Viswanathan G. M.   +6 more
core   +1 more source

A Tracer Diffusion Study of Diverse Photo‐Ionic Phenomena in Strontium Titanate

Advanced Functional Materials, EarlyView.
Two strong interfacial photo‐ionic effects are demonstrated for the model system SrTiO3 through the application of isotope exchange experiments: UV illumination is found to enhance the oxygen surface exchange coefficient by several orders of magnitude and to depress the surface space‐charge potential substantially.
David M. Schwenkel, Timon F. Kielgas, George F. Harrington, Roger A. De Souza   +3 more
wiley   +1 more source

Geochemistry of spodumene from pegmatites of the Laghman granitoid complex, Afghanistan

Записки Горного института
The article presents the first data on the rare element contents in the compositions of spodumene from pegmatites of the Laghman granitoid complex in Eastern Afghanistan, the Kolatan, Digal, Gulsalak, and Tsamgal deposits.
Aleksandr N. Evdokimov, Ataullah Yosufzai   +1 more
doaj  

Evaluation of secondary electron intensities for dopant profiling in ion implanted semiconductors: a correlative study combining SE, SIMS and ECV methods

, 2021
C.N. Shyam Kumar, Saba Tabean, Audrey Morisset, Philippe Wyss, Mario Lehmann, Franz‐Josef Haug, Quentin Jeangros, Aïcha Hessler‐Wyser, Nathalie Valle, Tom Wirtz, Santhana Eswara   +10 more
openalex   +1 more source

Development and Validation of a HS-SPME-GC-SIM-MS Multi-Method Targeting Hop-Derived Esters in Beer [PDF]

, 2021
Christian Schubert, Sarah Thörner, Laura Knoke, Nils Rettberg   +3 more
openalex   +1 more source

Application of projection algorithms to differential equations: boundary value problems

, 2018
The Douglas-Rachford method has been employed successfully to solve many kinds of non-convex feasibility problems. In particular, recent research has shown surprising stability for the method when it is applied to finding the intersections of ...
Lamichhane, Bishnu P., Lindstrom, Scott B., Sims, Brailey   +2 more
core  

Trap‐Modified Inverted Organic Photodetectors via Layer‐by‐Layer Processing with Poly(N‐vinylcarbazole) Additives

Advanced Functional Materials, EarlyView.
Trap state engineering in inverted organic photodetectors (OPDs) is achieved via combined layer‐by‐layer (LbL) processing and poly(N‐vinylcarbazole) (PVK) incorporation. LbL reduces the trap density while PVK additives gradually shift trap states from shallow band‐edge to deep mid‐gap levels, tailoring the energy distribution.
Jingwei Yi, Yi Yang, Yusen Pei, Apurva Gadikar, Vahid Mahdikhah, Myratgeldi Kotyrov, Seung Hyun Kim, Kenan Gundogdu, Wei You, Harald Ade, Franky So   +10 more
wiley   +1 more source

Effect of Sims modified posture on the rotation and descent of the fetus in women during their first delivery with epidural analgesia

NURE Investigación, 2011
Objective: To assess whether Sims modified posture reduces the duration of the second labor stage of delivery and cases rotation and the descent of the fetus by the delivery channel in nulliparous women with epidural analgesia.
Ana Mª Ruíz Rey, Rosa Mª Rodríguez Ferrer, Gema Magdaleno del Rey, Mª Belén Feijoo Iglesias, Rosa Ana Martín de Vega   +4 more
doaj  

Research on Uranium Particle Analysis Technology Based on Large Geometry Secondary Ion Mass Spectrometry

Yuanzineng kexue jishu
Nuclear safeguards remain a topic of shared concern for the international community. Large geometry secondary ion mass spectrometry (LG-SIMS) has been employed to efficiently analyze uranium `isotopes in uranium particle samples for monitoring undeclared
WU Yong1, 2, QIN Mingkuan1, 2, TAN Jing2, GUO Dongfa2, CUI Jianyong2, HE Sheng1, 2, CAI Yelei1, 2, LIN Yan1, 2
doaj   +1 more source