Results 11 to 20 of about 9,225 (217)

Characterisation of L21-ordered Ni2TiAl precipitates in Fe Mn maraging steels [PDF]

open access: yesMaterials Characterization, 2016
The precipitates formed in a new series of Fesingle bondMn maraging steels when aged at 500 °C were identified as the L21-ordered Ni2TiAl phase. The precipitate formed a coherent-coplanar microstructure analogously to γ/γ' Ni-based superalloys and maintained a high number density and homogeneous dispersion within α′-martensite matrix even after aging ...
Feng Qian   +2 more
openaire   +4 more sources

171 Scandium-based full Heusler compounds: A comprehensive study of competition between XA and L21 atomic ordering

open access: yesResults in Physics, 2019
The site-preference rule (SPR), which is widely used to design and study the properties of full-Heusler alloys X2YZ, is applied to determine the positions of different transition-metal elements with various numbers of valence electrons in Heusler alloys.
Yilin Han   +5 more
doaj   +2 more sources

The Arabidopsis chloroplast ribosomal protein L21 is encoded by a nuclear gene of mitochondrial origin [PDF]

open access: yesGene, 2001
Many chloroplast genes of cyanobacterial origin have been transferred to the nucleus during evolution and their products are re-addressed to chloroplasts. The RPL21 gene encoding the plastid r-protein L21 has been lost in higher plant chloroplast genomes after the divergence from bryophytes.
Gallois, Jean-Luc   +3 more
openaire   +5 more sources

DFT-assisted rational design of salan ligands for highly enantioselective Zr-salan-catalyzed hydroxylation of cyclic <i>β</i>-keto esters. [PDF]

open access: yesSmart Mol
Guided by DFT calculations, the design of novel C1‐symmetric salan ligands without the involvement of Suzuki coupling was achieved, and the preparation of α‐hydroxy‐β‐ketoesters in 99% yield and 99% ee was realized under low catalyst loading. Abstract In this work, a structurally simple, inexpensive, and readily accessible Zr–salan catalytic system was
Ma C   +9 more
europepmc   +2 more sources

Oxygen as a control on seafloor biological communities and their roles in sedimentary carbon cycling [PDF]

open access: yes, 2007
13C tracer experiments were conducted at sites spanning the steep oxygen, organic matter, and biological community gradients across the Arabian Sea oxygen minimum zone, in order to quantify the role that benthic fauna play in the short-term processing of
Woulds, C.   +12 more
core   +7 more sources

Long-term increase of insulin secretion in mice subjected to pregnancy and lactation

open access: yesEndocrine Connections, 2020
Purpose: Observational studies show that longer breastfeeding periods reduce maternal risk of type 2 diabetes mellitus. However, it is currently unknown if the long-term benefits of breastfeeding for maternal glucose homeostasis are l inked to changes in
Julia Modesto Vicente   +11 more
doaj   +1 more source

Factors influencing the use of trade credit in financing Polish listed companies

open access: yesEconomics and Business Review, 2021
The aim of this article is to identify the most important factors influencing the use of trade credit and to assess their significance for Polish listed companies taking into consideration the role of trade credit as a source of financing.
Duliniec Aleksandra, Świda Natalia
doaj   +1 more source

Customer Orientation and Innovation – The Perspective of Top-Level Management

open access: yesFolia Oeconomica Stetinensia, 2021
Research background: Scientific exploration of customer orientation also confirms the existence of connections which occur between the focus of an enterprise on the needs of its customers and the level of its innovativeness.
Widelska Urszula, Krot Katarzyna
doaj   +1 more source

CSR in mission statements of Polish chemical industry companies (content analysis results)

open access: yesManagement, 2022
Due to the specific nature of their activities, chemical companies are exposed to significant reputational risk. One way to reduce this risk is by implementing a CSR policy.
Bortnowska Hanna, Seiler Bartosz
doaj   +1 more source

Regularized L21-Based Semi-NonNegative Matrix Factorization

open access: yesCoRR, 2020
We present a general-purpose data compression algorithm, Regularized L21 Semi-NonNegative Matrix Factorization (L21 SNF). L21 SNF provides robust, parts-based compression applicable to mixed-sign data for which high fidelity, individualdata point reconstruction is paramount. We derive a rigorous proof of convergenceof our algorithm. Through experiments,
Anthony D. Rhodes, Bin Jiang 0016
openaire   +3 more sources

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