Results 21 to 30 of about 534,895 (266)

A Continuous k-Nearest Neighbor Query Method for Moving Data in Obstructed Spaces

Journal of Harbin University of Science and Technology, 2018
For the nearest neighbor query problem of continuous moving objects in spatio-temporal databases, the COpKNN (continuous obstructed possible k-nearest neighbor) query is proposed: in a two-dimensional space, given a moving query point q, a set of moving ...
WAN Jing, TANG Bei-bei, HE Yun-bin, Li Song   +3 more
doaj   +1 more source

Integrated transcriptomic and metabolomic analysis reveals the effects of polyploidization on the lignin content and metabolic pathway in Eucalyptus

Biotechnology for Biofuels and Bioproducts, 2023
Background Lignin is a major restriction factor for the industrial production of biomass resources, such as pulp and bioenergy. Eucalyptus is one of the most important sources of pulp and bioenergy.
Tingting Xu, Zhao Liu, Dingju Zhan, Zhenwu Pang, Shuwen Zhang, Chenhe Li, Xiangyang Kang, Jun Yang   +7 more
doaj   +1 more source

Group k- Nearest Neighbor Query Method for Uncertainty Data in Obstructed Spaces

Journal of Harbin University of Science and Technology, 2019
To deal with the problem of group k nearest neighbor query method for uncertainty data in obstructed spaces, this paper presents the method of the PkOGNN（probabilistic k obstructed group nearest neighbor）query .The PkOGNN query method mainly includes ...
WAN Jing, TANG Bei-bei, SUN Jian, HE Yun-bin, LI Song   +4 more
doaj   +1 more source

Predicting total and component biomass of Chinese fir using a forecast combination method

iForest - Biogeosciences and Forestry, 2017
Accurate estimates of tree biomass are critical for forest managers to assess carbon stock. Biomass of Chinese fir (Cunninghamia lanceolata [Lamb.] Hook.) in southern China was assessed by three alternative methods.
Zhang X, Cao QV, Xiang C, Duan A, Zhang J   +4 more
doaj   +1 more source

Efficient historical R-trees [PDF]

Proceedings Thirteenth International Conference on Scientific and Statistical Database Management. SSDBM 2001, 2002
The historical R-tree (HR-tree) is a spatio-temporal access method aimed at the retrieval of window queries in the past. The concept behind the method is to keep an R-tree for each timestamp in history, but to allow consecutive trees to share branches when the underlying objects do not change.
Yufei Tao 0001, Dimitris Papadias
openaire   +1 more source

Streptococcus thermophilus DM287 and DM294 as candidate oral probiotic strains with anti-biofilm activity against cariogenic pathogens

Frontiers in Microbiology
Streptococcus mutans and Streptococcus sobrinus are key contributors to dental caries within a broader polymicrobial biofilm community, driving pathogenicity through biofilm and dental plaque formation rather than direct tissue invasion.
Jeong-Hoo Lee, Jia Yoo, Je-Hyun Eom, Young-Youn Kim, Hye-Sung Kim, Seung-Jo Yang   +5 more
doaj   +1 more source

The Impacts of Environment on Egg Fecundity of Thaumetopoea solitaria on different types of Trees in the North of Iraq

Science Journal of University of Zakho, 2022
In this study, egg fecundity of pistachio processionary bud moth Thaumetopoea solitaria (Lepidoptera- Notodontidae) on three different types of trees was investigated in Koya, Haybat Sultan forest during 2018 and 2019.
Muzafar K. Omer, Rawaz R. Hamadamin
doaj   +1 more source

Discovery of Multifunctional Probiotic Strains with Antioxidant, Anti-Inflammatory, Antimicrobial, and Skin Barrier-Supportive Activities for Postbiotic Cosmetic Applications

Cosmetics
Probiotic strains with multifunctional skin-beneficial properties represent promising candidates for next-generation cosmetic ingredients. In this study, a systematic stepwise screening strategy was applied to an in-house bacterial library comprising 302
Jeong-Hoo Lee, Jia Yoo, Young-Youn Kim, Hye-Sung Kim   +3 more
doaj   +1 more source

Phosphoinositides and inositol phosphates as molecular glues

FEBS Letters, EarlyView.
Inositol phosphates (IPs) and phosphoinositides (PIPs) regulate diverse eukaryotic processes. Beyond recruiting signaling proteins or acting as structural cofactors, recent studies suggest they mediate protein–protein interactions as natural molecular glues.
Aleshia Seaton‐Terry, Alexander J. Cutright, Mong Na Claire Loi, Jessica Martin, Joseph W. Gilligan, Jakub N. Kubina, Michael J. Arambula, Susanna Tanada Palmu, Daniella Zhou, Raymond D. Blind   +9 more
wiley   +1 more source

Algorithms for the Prize-Collecting k-Steiner Tree Problem

Tsinghua Science and Technology, 2022
In this paper, we study the prize-collecting k-Steiner tree (PCkST) problem. We are given a graph G=(V,E) and an integer k. The graph is connected and undirected. A vertex r∈V called root and a subset R⊆V called terminals are also given.
Lu Han, Changjun Wang, Dachuan Xu, Dongmei Zhang   +3 more
doaj   +1 more source