Results 11 to 20 of about 1,665,022 (280)

Regional R&D Efficiency in Korea from Static and Dynamic Perspectives [PDF]

Regional Studies, 2014
Regional R&D efficiency in Korea from static and dynamic perspectives, Regional Studies. Research and development (R&D) efficiency has gained great attention in regional innovation research. This study examines the R&D efficiency patterns of 15 Korean regions for 2005–09.
Han, Ungkyu, Asmild, Mette, Kunc, Martin
openaire   +6 more sources

Non-Intrusive Measurements to Incorporate the Air Renovations in Dynamic Models Assessing the In-Situ Thermal Performance of Buildings

Energies, 2020
This paper reports the analysis of the feasibility to characterise the air leakage and the mechanical ventilation avoiding the intrusiveness of the traditional measurement techniques of the corresponding indicators in buildings.
María José Jiménez, José Alberto Díaz, Antonio Javier Alonso, Sergio Castaño, Manuel Pérez   +4 more
doaj   +1 more source

Highly D‑efficient Weighing Design and Its Construction [PDF]

Acta Universitatis Lodziensis. Folia Oeconomica, 2018
In this paper, some aspects of design optimality on the basis of spring balance weighing designs are considered. The properties of D‑optimal and D‑efficiency designs are studied. The necessary and sufficient conditions determining the mentioned designs and some new construction methods are introduced.
Ceranka, Bronisław, Graczyk, Małgorzata   +1 more
openaire   +4 more sources

Optimization of the Urea Injection Angle and Direction: Maximizing the Uniformity Index of a Selective Catalytic Reduction System

Energies, 2020
The uniformity of ammonia is very crucial for reducing the NOX emissions in a selective catalytic reduction system since the uniformity highly affects the chemical reaction between the ammonia and NOX emission. However, increasing ammonia uniformity in a
Seokhoon Jeong, Hoonmyung Kim, Hyunjun Kim, Ohyun Kwon, Eunyong Park, Jeongho Kang   +5 more
doaj   +1 more source

A Molecular Understanding of the Flame Retardant Mechanism of Zinc Stannate/Polypropylene Composites via ReaxFF Simulations

Inorganics, 2023
As an important new flame retardant, zinc stannate (ZS) shows wide application prospects due to its many advantages. However, the flame retardant mechanism of composites made with polymer combined with ZS is still unclear.
Jun Li, Meilin Zhu, Chang Geng, Yingjie Yuan, Zewei Fu, Shu Yan, Rou Feng, Yingwu Wang, Ying Zhou, Liangliang Meng, Hui Zhang, Hongcun Bai   +11 more
doaj   +1 more source

Structural Characteristics, Stability, and Electronic Properties of 001 Surface with Point Defects of Zinc Stannate: A First-Principle Study

Inorganics, 2022
This work presents first-principles calculations on the surface and defect impact upon zinc stannate (ZS) materials with perovskite bulk structures. The structure and electronic properties of both a perfect 001 surface and surfaces with a point defect of
Jun Li, Meilin Zhu, Rou Feng, Yingjie Yuan, Zewei Fu, Liangliang Meng, Yingwu Wang, Ying Zhou, Hui Zhang, Hongcun Bai   +9 more
doaj   +1 more source

Effects of voltage variation on heat and stress distributions in the electrochromic glass

Results in Engineering, 2023
Electrochromic glass has been used in many applications, such as the building envelope, because its light filtration can be adjusted in a controllable manner using low input energy.
Watit Pakdee, Chuleekorn Chotsuwan
doaj   +1 more source

Highly D-Efficient Designs with Nonnegatively Correlated Observations

Revstat Statistical Journal, 2017
In the most difficult case where the number of observations n ≡ 3 (mod 4), high D-efficiency of certain chemical balance weighing designs under completely symmetric covariance matrix of errors is shown. It is also proved that D-optimal design may depend on the values of the correlation coefficient.
Krystyna Katulska, Lukasz Smaga
openaire   +2 more sources

Urban energy assessment by means of simulation techniques

Techne, 2018
Current trends in energy consumption and greenhouse emissions make energy problems in cities take special importance. This situation has led to evaluate different urban configurations that combine the reduction of the energy demands with the optimization
Silvia Soutullo, Jose Antonio Ferrer, Maria del Rosario Heras   +2 more
doaj   +1 more source

Effects of Ultrasonic Dispersion Energy on the Preparation of Amorphous SiO2 Nanomaterials for In Vitro Toxicity Testing

Nanomaterials, 2018
Synthetic amorphous silica (SAS) constitute a large group of industrial nanomaterials (NM). Based on their different production processes, SAS can be distinguished as precipitated, fumed, gel and colloidal.
Martin Wiemann, Antje Vennemann, Michael Stintz, Rodrigo R. Retamal Marín, Frank Babick, Gottlieb-Georg Lindner, Tobias B. Schuster, Ulrich Brinkmann, Nils Krueger   +8 more
doaj   +1 more source