Results 31 to 40 of about 27,279 (160)

Design and Experimentation of a Roller-Type Precision Seed Metering Device for Rapeseed with Bezier Curve-Based Profiled Holes

open access: yesApplied Sciences
To address the industry pain points of high seed breakage rate and uncontrollable miss-filling rate, multiple-filling rate in traditional rapeseed roller-type precision centralized seed metering devices—while breaking the adaptation limitation of ...
Huaili Pan   +4 more
doaj   +1 more source

Filling polygonal holes with bicubic patches [PDF]

open access: yesComputer Aided Geometric Design, 1994
The authors study the problem of filling a polygonal hole in a surface given by \(C^ 1\) data on the boundary of the hole with a \(C^ 1\) surface patch. They give an explicit algorithm that works well for triangular holes but in general does not fit the boundary data and shows undesirable flutter for boundaries that are piecewise curvilinear \(n ...
John A. Gregory, Jianwei Zhou
openaire   +1 more source

Optimization of circular hole patterns on crashworthiness of polyurethane foam-filled CFRP rectangular tubes

open access: yesResults in Engineering
This study examines the impact of hole sizes, patterns, and polyurethane foam (PUF) filling on the crashworthiness of rectangular carbon fiber-reinforced polymer (CFRP) tubes used in crash box structures.
Harri Junaedi   +4 more
doaj   +1 more source

Optimization of the thermal performance of self-insulation hollow blocks under conditions of cold climate and intermittent running of air-conditioning

open access: yesCase Studies in Thermal Engineering, 2022
The self-insulation wall is widely used in the field of architecture because it involves a simple construction process, saves resources, and reduces environmental pollution.
Wentao Hu   +4 more
doaj   +1 more source

Kinect sensor′s depth image enhancement based on gaussian mixture model

open access: yes上海师范大学学报. 自然科学版, 2016
Depth image acquisition is currently a significant research topic in the field of three-dimensional video processing.The Microsoft′s Kinect sensor can generate a real-time dense depth map.However,there are usually numerous hole artifacts in the depth map
LI Shaomin   +4 more
doaj   +1 more source

Effect of Wetting Conditions on the In Situ Density of Soil Using the Sand-Cone Method

open access: yesApplied Sciences, 2021
The sand-cone method is commonly used to measure the in situ density of compacted soils. While determining field density with this method, differences in the sand-filling process between the test hole and the calibration container can cause errors.
Sung-Sik Park   +4 more
doaj   +1 more source

A Shape-Preserving Variational Spline Approximation Problem for Hole Filling in Generalized Offset Surfaces

open access: yesMathematics
In the study of some real cases, it is possible to encounter well-defined geometric conditions, of an industrial or design type—for example, the case of a specific volume within each of several holes. In most of these cases, it is recommended to fulfil a
Abdelouahed Kouibia   +2 more
doaj   +1 more source

To Fill or Not to Fill: Sensitivity Analysis of the Influence of Resolution and Hole Filling on Point Cloud Surface Modeling and Individual Rockfall Event Detection

open access: yesRemote Sensing, 2015
Monitoring unstable slopes with terrestrial laser scanning (TLS) has been proven effective. However, end users still struggle immensely with the efficient processing, analysis, and interpretation of the massive and complex TLS datasets.
Michael J. Olsen   +6 more
doaj   +1 more source

Study on Influence of Grouting on Mechanical Characteristics and Stress Concentration in Hole-Containing Rock

open access: yesApplied Sciences
Grouting technology is a pivotal methodology for enhancing the mechanical properties of defective surrounding rock masses in tunnel engineering. Through uniaxial compression tests on intact, hole-containing, and grouted marble specimens, the influence of
Yanshuang Yang   +4 more
doaj   +1 more source

Hilbert's space-filling curve for regions with holes [PDF]

open access: yes2017 IEEE 56th Annual Conference on Decision and Control (CDC), 2017
Accepted for presentation at the 56th IEEE Conference on Decision and Control ...
Siddharth H. Nair   +2 more
openaire   +2 more sources

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