Results 21 to 30 of about 793,915 (265)

Risk of Crop Yield Reduction in China under 1.5 °C and 2 °C Global Warming from CMIP6 Models

open access: yesFoods, 2023
Warmer temperatures significantly influence crop yields, which are a critical determinant of food supply and human well-being. In this study, a probabilistic approach based on bivariate copula models was used to investigate the dependence (described by ...
Feiyu Wang, Chesheng Zhan, Lei Zou
doaj   +1 more source

The Loss Surfaces of Multilayer Networks

open access: yesCoRR, 2014
We study the connection between the highly non-convex loss function of a simple model of the fully-connected feed-forward neural network and the Hamiltonian of the spherical spin-glass model under the assumptions of: i) variable independence, ii) redundancy in network parametrization, and iii) uniformity.
Anna Choromanska   +4 more
openaire   +3 more sources

Surfacing curve networks with normal control [PDF]

open access: yesComputers & Graphics, 2016
Recent surface acquisition technologies based on microsensors produce three-space tangential curve data which can be transformed into a network of space curves with surface normals. This paper addresses the problem of surfacing an arbitrary closed 3D curve network with given surface normals.
Stanko, Tibor   +3 more
openaire   +3 more sources

Comprehensive Sustainability Indicator for Land Resource-Carrying Capacity in a Farming-Pastoral Region

open access: yesRemote Sensing, 2023
The Northeast Farming-pastoral ecotone (NFPE) in China is crucial for farming and pastoralism. However, sustainable development of land resources faces several challenges from human activities and environmental degradation.
Suizi Wang   +4 more
doaj   +1 more source

The Use of Meta-Surfaces in Vehicular Networks [PDF]

open access: yesJournal of Sensor and Actuator Networks, 2020
Mobility as a service is becoming a new paradigm in the direction of travel planning on the basis of the best service offered by the travelled roads. Hence, the environment in which people move will become smarter and more and more connected to grant services along the whole path.
Barbara M. Masini   +2 more
openaire   +2 more sources

Self-Organization of Surface Transportation Networks [PDF]

open access: yesTransportation Science, 2006
This research investigates the self-organization of surface transportation networks. Using a travel demand model coupled with revenue, cost, and investment models, experiments are run under a variety of parameters on a grid network. It is found that roads, contiguous sections of multiple links operating with similar characteristics, and hierarchies of
David Levinson, Bhanu Yerra
openaire   +3 more sources

Nitrogen Significantly Affected N Cycling Functional Gene Abundances Compared with Phosphorus and Drought in an Alpine Meadow

open access: yesAgronomy, 2023
Human activities and global climate change have greatly increased nitrogen (N) and phosphorus (P) inputs and altered precipitation patterns in alpine meadows.
Haiyan Li   +4 more
doaj   +1 more source

The role of climate, vegetation, and soil factors on carbon fluxes in Chinese drylands

open access: yesFrontiers in Plant Science, 2023
Drylands dominate the trend and variability of the land carbon (C) sink. A better understanding of the implications of climate-induced changes in the drylands for C sink-source dynamics is urgently needed.
Zhaogang Liu   +11 more
doaj   +1 more source

Curve Networks for Surface Reconstruction

open access: yesCoRR, 2016
Man-made objects usually exhibit descriptive curved features (i.e., curve networks). The curve network of an object conveys its high-level geometric and topological structure. We present a framework for extracting feature curve networks from unstructured point cloud data.
Yuanhao Cao, Liangliang Nan, Peter Wonka
openaire   +2 more sources

Impact of Epidemic-Affected Labor Shortage on Food Safety: A Chinese Scenario Analysis Using the CGE Model

open access: yesFoods, 2021
Human food safety should be given priority during a major public health crisis. As the primary element of agricultural production, labor tends to suffer the most during a period of public health concern.
Li Liang   +4 more
doaj   +1 more source

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