scholarly journals Estimations of limestone resources using three dimension block kriging method, a case study: limestone sediment at PT Semen Padang

2019 ◽  
Vol 314 ◽  
pp. 012069
Author(s):  
M Gusman ◽  
B Muchtar ◽  
N Syah ◽  
M D Akbar ◽  
A V Deni
Keyword(s):  
Three Dimension ◽  
Kriging Method ◽  
Block Kriging

scholarly journals A case study on optimizing the geotechnical site investigation using Kriging method

2014 ◽  
Vol 17 (3) ◽  
pp. 54-61
Author(s):  
Chung Le Thuy Kieu ◽  
Ha Thi San Phan ◽  
Son Minh Le
Keyword(s):  
Mechanical Properties ◽  
Interpolation Method ◽  
Real Data ◽  
Site Investigation ◽  
Kriging Method ◽  
Geotechnical Investigation ◽  
The Real ◽  
Investigation Area ◽  
Project Risks

One of the major tasks in geotechnical investigation is the stratigraphy distribution and the physico-mechanical properties of strata encountered in the investigation area. In order to reduce the project risks associated with uncertainties in predicting the distribution of strata (in area and in depth), a geotechnical investigation plan is usually designed with as many as possible of the boreholes. And this, in turn, increases the investigation costs. On the contrary, the owner of the project is expected to gather as much information about the subsurface soils as possible at the lowest cost. To deal with this contradiction, geotechnical engineers not only mobilize their knowledge on the investigation area and their experiences in the field of geotechnical investigation but also should be supported by geostatistical tools, especially the interpolation method of Kriging. Based on the real data taken from a geotechnical investigation project in Saigon (Vietnam), this paper will introduce two geotechnical investigation plans: a) an actual investigation plan; b) an optimized investigation plan designed with the support of Kriging method. From these two plans, the ability of Kriging in optimization of geotechnical investigation will be evaluated.

Digital Elevation Modeling Analysis for Investigation of Gravity Hill Phenomena

2018 ◽  
Vol 7 (3) ◽  
pp. 25-38
Author(s):  
Rehan Jamil
Keyword(s):  
Magnetic Force ◽  
Geospatial Data ◽  
Kriging Method ◽  
The Road ◽  
Modeling Analysis ◽  
Digital Elevation ◽  
Significant Difference ◽  
Average Slope ◽  
Engine Power

This article presents an investigation of the gravity hill phenomena by analysing its geospatial data. Wadi Al Baida located in Al Madinah, Saudi Arabia has been taken as a case study. Wadi Al Baida is listed as one of the sites in the world where the said phenomena exists, but the site has been famous for any sort of magnetic force because the vehicles move uphill and on flat road without any engine power on. The topography of the valley is studied by using the geospatial data of the area and by creating Digital Elevation Models (DEMs) based on Point Kriging method of gridding. The results show that the area has natural slope and there is a significant difference in the elevations of the start and the end point of the valley. A longitudinal profile is also generated to validate the results obtained by DEMs and it is found that the road has an average slope of 2.6% which makes the vehicles and rolling objects move on their own due to the force of gravity. Also, the concept of gravity hill has been explained with the help of a diagram which is easy to understand by the readers.

scholarly journals Optimization of a Coastal Environmental Monitoring Network Based on the Kriging Method: A Case Study of Quanzhou Bay, China

2016 ◽  
Vol 2016 ◽  
pp. 1-12 ◽  
Author(s):  
Kai Chen ◽  
Minjie Ni ◽  
Minggang Cai ◽  
Jun Wang ◽  
Dongren Huang ◽  
...  
Keyword(s):  
Environmental Monitoring ◽  
Monitoring Network ◽  
Monitoring Data ◽  
Trophic State Index ◽  
Kriging Method ◽  
Cost Constraints ◽  
Management Measures ◽  
Quanzhou Bay ◽  
Monitoring Precision

Environmental monitoring is fundamental in assessing environmental quality and to fulfill protection and management measures with permit conditions. However, coastal environmental monitoring work faces many problems and challenges, including the fact that monitoring information cannot be linked up with evaluation, monitoring data cannot well reflect the current coastal environmental condition, and monitoring activities are limited by cost constraints. For these reasons, protection and management measures cannot be developed and implemented well by policy makers who intend to solve this issue. In this paper, Quanzhou Bay in southeastern China was selected as a case study; and the Kriging method and a geographic information system were employed to evaluate and optimize the existing monitoring network in a semienclosed bay. This study used coastal environmental monitoring data from 15 sites (including COD, DIN, and PO4-P) to adequately analyze the water quality from 2009 to 2012 by applying the Trophic State Index. The monitoring network in Quanzhou Bay was evaluated and optimized, with the number of sites increased from 15 to 24, and the monitoring precision improved by 32.9%. The results demonstrated that the proposed advanced monitoring network optimization was appropriate for environmental monitoring in Quanzhou Bay. It might provide technical support for coastal management and pollutant reduction in similar areas.

Distributed Contact Model for Indeterminate Grasp Force Analysis towards Heavy-Duty Manipulation

2011 ◽  
Vol 383-390 ◽  
pp. 4837-4842
Author(s):  
Jin Cheng Mao ◽  
Wen Yu Yang
Keyword(s):  
Contact Forces ◽  
Contact Model ◽  
Elastic Contact ◽  
Three Dimension ◽  
Force Analysis ◽  
Heavy Duty ◽  
Linear Elastic ◽  
Grasp Force ◽  
The Relationship

This paper presents a new contact model to describe the contact constraints for heavy-duty manipulation. This contact model considers the contact area as a surface, which can translate three-dimension forces and torques. The contact deformations which are resulting from the large contact forces cannot be ignored. Distributed linear elastic contact model is adopted to describe the relationship between contact force and contact deformation. A case study is carried out in this paper based on this contact model for the grasp force analysis of heavy-duty manipulators.

Zonation of coastal sediments based on the effective properties on the accumulation of heavy metals using the IDW and kriging method (case study: SW Iran)

2017 ◽  
Vol 33 (11) ◽  
pp. 1257-1267
Author(s):  
Maryam Ghazanfari Shabankareh ◽  
Hakimeh Amanipoor ◽  
Sedigheh Battaleb-Looie ◽  
Javad Dravishi Khatooni
Keyword(s):  
Heavy Metals ◽  
Effective Properties ◽  
Coastal Sediments ◽  
Kriging Method ◽  
Sw Iran

Mathematical Foundation for Modeling Conceptual Design Sketches1

2004 ◽  
Vol 4 (2) ◽  
pp. 150-159 ◽  
Author(s):  
Y. Zeng ◽  
A. Pardasani , ◽  
J. Dickinson , ◽  
Z. Li , ◽  
H. Antunes , and ◽  
...  
Keyword(s):  
Mathematical Model ◽  
Conceptual Design ◽  
Design Process ◽  
Line Drawing ◽  
Mathematical Structure ◽  
Three Dimension ◽  
Mathematical Foundation ◽  
Formal Representation ◽  
Theoretical Approaches

This paper aims to establish a mathematical foundation for modeling free-hand design sketches throughout the conceptual design process. Both experimental and theoretical approaches are used. In using the experimental approach, one case study from a book and one case study from an automobile assembly system manufacturer are used to illustrate the characteristics of design sketches. These characteristics provide the requirements for models of sketch representation. In using the theoretical approach, a mathematical structure of design sketches is established. This mathematical structure can naturally and logically model the evolving sketches generated in the design process, through integrating the strengths of set theory and mereology. In addition to the formal representation of design sketches, the mathematical model provides a logical foundation for formally designing sketch interpretation algorithms. An algorithmic structure of three-dimension reconstruction from two-dimension line drawing is derived using this mathematical model.

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