Results 221 to 230 of about 1,895,969 (377)

Query Expansion Techniques for Information Retrieval: a Survey [PDF]

Information Processing & Management, 2017
Dr. Hiteshwar Kumar Azad, A. Deepak
semanticscholar   +1 more source

Copper Doping Enhances the Activity and Selectivity of Atomically Precise Ag44 Nanoclusters for Photocatalytic CO2 Reduction

Advanced Functional Materials, EarlyView.
By a simple anti‐Galvanic reaction, up to six copper atoms could be preferably doped into the Ag2(SR)5 staple motifs and Ag20 dodecahedral shell of an atomically precise Ag44(SR)30 nanocluster. When anatase TiO2 is used as substrate, the (AgCu)44/TiO2 photocatalyst exhibited much improved activity in photocatalytic CO2 reduction compared to Ag44/TiO2 ...
Ye Liu, Xi Zheng, Xiufan Liu, Tengyuan Gao, Nicola Pinna, Yu Wang   +5 more
wiley   +1 more source

Understanding Graph Structure of Wikipedia for Query Expansion [PDF]

, 2015
Joan Guisado-Gámez, Arnau Prat-Pèrez
openalex   +1 more source

2D Multifunctional Spin‐Orbit Coupled Dirac Nodal Line Materials

Advanced Functional Materials, EarlyView.
A total of 473 nonmagnetic and antiferromagnetic 2D spin‐orbit coupled Dirac nodal line materials are screened, spanning 5 layer groups and 12 magnetic space groups. Furthermore, it integrates their topological properties with electride, multiferroic, and magnetic characteristics, revealing unique systems with expanded functionalities and promising ...
Weizhen Meng, Ying Liu, Jialin Gong, Yalong Jiao, Xiaoming Zhang, Wenxian Li, Zhenxiang Cheng, Tie Yang   +7 more
wiley   +1 more source

Question answering system using Q & A site corpus Query expansion and answer candidate evaluation. [PDF]

Springerplus, 2013
Komiya K, Abe Y, Morita H, Kotani Y.
europepmc   +1 more source

Word-Context Matrix based Query Expansion in Information Retrieval for Turkish Text [PDF]

, 2015
Emre Şatır, Adil Alpkoçak, Deniz Kılınç   +2 more
openalex   +1 more source

Controlled Aggregation of Pyrene‐Based Supramolecular Nanostructures for Light‐Driven Switchable H2 or H2O2 Production

Advanced Functional Materials, EarlyView.
This work reports the self‐assembly of a pyrene derivative into two distinct nanostructures and their application in visible‐light photocatalysis. The two nanostructures exhibit completely different yet complementary photocatalytic activities, promoting either H2 or H2O2 evolution.
Marianna Barbieri, Matilde Doardo, Ilaria Fortunati, Anna Fortunato, Elisabetta Collini, Francesca Arcudi, Luka Ðorđević   +6 more
wiley   +1 more source

Query expansion for information retrieval by means of an unsupervised classification

, 2002
Christian Raymond, Patrice Bellot, Marc El-Bèze   +2 more
openalex   +1 more source

Modelling the Usefulness of Document Collections for Query Expansion in Patient Search [PDF]

, 2015
Nut Limsopatham, Craig Macdonald, Iadh Ounis   +2 more
openalex   +1 more source

Topological Insulator Layered Bi2Te3 Based 3D‐Printed Nanocarbon Electrode for Rechargeable Aqueous Ammonium‐Ion Battery

Advanced Functional Materials, EarlyView.
In this work, Bi2Te3 is integrated into a 3D‐printed nanocarbon electrode for NH4+ storage. A rocking‐chair battery with CuHCF as the cathode delivers a high energy density of 134.8 Wh kg−1 and a power density of 1800 W kg−1. The design allows easy recovery of carbon additives, promoting sustainability and recyclability in next‐generation aqueous ...
Sunny Nandi, Martin Pumera
wiley   +1 more source