Results 141 to 150 of about 1,791 (235)

Development of ± 550 kV DC GIS Basin Insulator

High Voltage, EarlyView.
ABSTRACT The basin insulator is a core component of the insulation system for ± 550 kV gas‐insulated switchgear (GIS). This paper, using a finite element method for multi‐physics simulations of electric–thermal coupling, determines a geometry suitable for the industrial production of ± 550 kV GIS basin insulators.
Shaohua Cao, Chengwei Jing, Siqiong Zhang, Zuodong Liang, Zehao Zhang, Fangwei Liang, Yong Yang, Geng Chen, Jinliang He, Chuanyang Li   +9 more
wiley   +1 more source

A clockmaker's mathematics: a technology-based approach to the mathematical works of Jost Bürgi (1552-1632). [PDF]

Arch Hist Exact Sci
Moosbrugger D.
europepmc   +1 more source

Fuzzy GE-norms and fuzzy normed GE-algebras

AIMS Mathematics
Amal S. Alali, Ravi Kumar Bandaru, Seok-Zun Song, Young Bae Jun   +3 more
openaire   +1 more source

Efficiency, Shadow Pricing and Regime Switching in Multi‐Ware Technologies: Evidence From Regulated Livestock Farms

Journal of Agricultural Economics, EarlyView.
ABSTRACT We develop a framework for regulated production systems where output generation and pollution abatement impose competing technological demands. Using a multi‐ware technology, we model the production set as the intersection of two input requirement frontiers, one for production and one for abatement, each reflecting distinct trade‐offs.
Youpei Yan, Robert G. Chambers
wiley   +1 more source

Determining the N-Representability of a Reduced Density Matrix via Unitary Evolution and Stochastic Sampling. [PDF]

J Chem Theory Comput
Massaccesi GE, Oña OB, Capuzzi P, Melo JI, Lain L, Torre A, Peralta JE, Alcoba DR, Scuseria GE.   +8 more
europepmc   +1 more source

Government Policy, Low‐ and High‐Skilled Labour, and Technical Inefficiency in Chinese Agriculture, 1952–2008

Journal of Agricultural Economics, EarlyView.
ABSTRACT We utilize Chinese provincial data to explore how government policies affected grain production between 1952 and 2008. We adapt the Caselli‐Coleman framework to allow multiple inputs including fertilizer, land and capital as well as skilled and unskilled labour.
Yulong Chen, Peter F. Orazem
wiley   +1 more source

The utility of customised tissue probability maps and templates for patients with idiopathic normal pressure hydrocephalus: a computational anatomy toolbox (CAT12) study. [PDF]

Fluids Barriers CNS
Kanno S, Liu J, Kawamura A, Ota S, Kawakami N, Iseki C, Kakinuma K, Matsubara S, Katsuse K, Sato K, Takeuchi T, Tanaka Y, Kodama H, Nagasaka T, Sai M, Odagiri H, Saito M, Takanami K, Mugikura S, Suzuki K.   +19 more
europepmc   +1 more source

Output Quality, Productivity, and Demand: Evidence from the Chinese Steel Industry

The RAND Journal of Economics, EarlyView.
ABSTRACT Unobserved objective output quality complicates the analysis of firm productivity and demand because higher‐quality products entail higher costs but offer greater consumption benefits. Using a panel of firms with output quality data, we decompose quantity‐based productivity into fundamental productivity and the costs of quality, and separate ...
Jing Li, Shengyu Li, Hongsong Zhang
wiley   +1 more source

An efficient elliptic curve-based deterministic measurement matrix for micro-seismic data acquisition. [PDF]

PLoS One
Liu H, Ge G, Jiang Z, Chen X.
europepmc   +1 more source

Ecological examples of nonstationarity, nonlinearity and statistical interactions in dynamic structural equation models

Methods in Ecology and Evolution, EarlyView.
Abstract Ecologists are adapting structural causal modelling for spatial, phylogenetic and time‐series analysis. However, ecological extensions of path analysis and structural equation models (SEM) typically assume that interactions among variables are stationary, linear and additive, while ecological and evolutionary dynamics are often nonstationary ...
James T. Thorson, Kasper Kristensen
wiley   +1 more source