Results 81 to 90 of about 260,119 (338)

In Vivo and In Vitro Pharmacodynamics of Anthelmintic Medication Used in Sheep

open access: yesBulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca: Veterinary Medicine, 2019
Our research aimed to evaluate the efficacy of anthelmintic treatments in sheep, as well as the resistance occurrence risk for the most commonly used substances. Anthelmintic medication efficacy was evaluated on 30 animals from a private farm, located in
Mihai CERNEA   +3 more
doaj   +1 more source

Learning from LDA using Deep Neural Networks [PDF]

open access: yesarXiv, 2015
Latent Dirichlet Allocation (LDA) is a three-level hierarchical Bayesian model for topic inference. In spite of its great success, inferring the latent topic distribution with LDA is time-consuming. Motivated by the transfer learning approach proposed by~\newcite{hinton2015distilling}, we present a novel method that uses LDA to supervise the training ...
arxiv  

Development of ZnO Buffer Layers for As‐Doped CdSeTe/CdTe Solar Cells with Efficiency Exceeding 20%

open access: yesAdvanced Materials Technologies, EarlyView.
Highly resistive ZnO has been used as the buffer layer in As‐doped CdSeTe/CdTe solar cells to achieve efficiencies higher than 20%. STEM images and EDX mapping show that the quality of the front interface is dependent on the ZnO deposition temperature. Unusually, chlorine is not observed at the front interface using EDX when the ZnO is deposited at 100
Luksa Kujovic   +17 more
wiley   +1 more source

Ab-initio Phonon Calculations for the layered compound TiOCl

open access: yes, 2005
We present first-principles frozen-phonon calculations for the three Raman-active $A_g$ modes in the spin-1/2 layered TiOCl system within two different well-known approaches: the local density approximation (LDA) and the so-called LDA+U approximation. We
Pisani, Leonardo, Valenti, Roser
core   +1 more source

A new structural relaxation pathway of low-density amorphous ice [PDF]

open access: yes, 2016
Low-density amorphous ice (LDA) is involved in critical cosmological processes and has gained prominence as one of the at least two distinct amorphous forms of ice. Despite these accolades, we still have an incomplete understanding of the structural diversity that is encompassed within the LDA state and the dynamic processes that take place upon ...
arxiv   +1 more source

Triboelectrification During Water Intrusion–Extrusion into‐from Hydrophobic Nanopores

open access: yesAdvanced Materials Technologies, EarlyView.
An innovative class of tribogenerator (IE‐TENG) is proposed, which is based on cyclic water intrusion–extrusion into‐from hydrophobic nanopores. This IE‐TENG possesses surface area orders of magnitude higher than flat surfaces and achieves remarkable electricity generation.
Luis Bartolomé   +7 more
wiley   +1 more source

DFT screened-exchange approach for investigating electronical properties of graphene-related materials

open access: yes, 2010
We present ab initio calculations of the bandstructure of graphene and of short zigzag graphene nanoribbons by the screened-exchange-LDA method (sX-LDA) within the framework of density functional theory (DFT). The inclusion of non-local electron-electron
Gillen, Roland, Robertson, John
core   +1 more source

A 'Gibbs-Newton' Technique for Enhanced Inference of Multivariate Polya Parameters and Topic Models [PDF]

open access: yesarXiv, 2015
Hyper-parameters play a major role in the learning and inference process of latent Dirichlet allocation (LDA). In order to begin the LDA latent variables learning process, these hyper-parameters values need to be pre-determined. We propose an extension for LDA that we call 'Latent Dirichlet allocation Gibbs Newton' (LDA-GN), which places non ...
arxiv  

Spectroscopic Wonders: A Multifunctional All‐In‐One Molecule for Nanophotonics

open access: yesAdvanced Optical Materials, EarlyView.
The ToC highlights an unprecedented All‐in‐One molecule with a simple chemical structure offering versatile photonic applications. It enables efficient light amplification, modulation, and higher harmonic generation. Additionally, a random laser is demonstrated in two distinct environments: liquid and solid, showcasing its remarkable versatility ...
Adam Szukalski   +4 more
wiley   +1 more source

Knowledge Discovery Through Topic Modeling on GoPartner User Reviews Using BERTopic, LDA, and NMF

open access: yesJournal of Applied Informatics and Computing
Transportation and food delivery services are one of the driving sectors of the digital economy in Indonesia. The e-Conomy SEA 2023 report shows that the transportation and food delivery services sector experienced a decrease in GMV in 2023 by 8% from ...
Metti Detricia Pratiwi, Ken Ditha Tania
doaj   +1 more source

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