Alpine ibexCapra ibex ibexx domestic goatC. aegagrus domesticahybrids in a restricted area of southern Switzerland

2004 ◽  
Vol 10 (1) ◽  
pp. 137-143 ◽  
Author(s):  
Marco Giacometti ◽  
Renato Roganti ◽  
Dario De Tann ◽  
Nasikat Stahlberger-Saitbekova ◽  
Gabriela Obexer-Ruff
Keyword(s):  
Restricted Area

scholarly journals On the Reconstruction of the Center of a Projection by Distances and Incidence Relations

2020 ◽  
Author(s):  
András Pongrácz ◽  
Csaba Vincze
Keyword(s):  
Algebraic Surface ◽  
Basic Problem ◽  
Rotational Symmetry ◽  
Image Plane ◽  
Equivalent Condition ◽  
Central Projection ◽  
Profile Curve ◽  
Reconstruction Process ◽  
Restricted Area ◽  
Photographic Images

AbstractUp to an orientation-preserving symmetry, photographic images are produced by a central projection of a restricted area in the space into the image plane. To obtain reliable information about physical objects and the environment through the process of recording is the basic problem of photogrammetry. We present a reconstruction process based on distances from the center of projection and incidence relations among the points to be projected. For any triplet of collinear points in the space, we construct a surface of revolution containing the center of the projection. It is a generalized conic that can be represented as an algebraic surface. The rotational symmetry allows us to restrict the investigations to the defining polynomial of the profile curve in the image plane. An equivalent condition for the boundedness is given in terms of the input parameters, and it is shown that the defining polynomial of the profile curve is irreducible.

Estimated path information gain-based robot exploration under perceptual uncertainty

Robotica ◽  
2022 ◽  
pp. 1-17
Author(s):  
Jie Liu ◽  
Chaoqun Wang ◽  
Wenzheng Chi ◽  
Guodong Chen ◽  
Lining Sun
Keyword(s):  
Decision Making ◽  
Topological Structure ◽  
Information Gain ◽  
State Of The Art ◽  
Selection Process ◽  
Random Trees ◽  
Experimental Results ◽  
Restricted Area ◽  
Structure Information ◽  
Path Information

Abstract At present, the frontier-based exploration has been one of the mainstream methods in autonomous robot exploration. Among the frontier-based algorithms, the method of searching frontiers based on rapidly exploring random trees consumes less computing resources with higher efficiency and performs well in full-perceptual scenarios. However, in the partially perceptual cases, namely when the environmental structure is beyond the perception range of robot sensors, the robot often lingers in a restricted area, and the exploration efficiency is reduced. In this article, we propose a decision-making method for robot exploration by integrating the estimated path information gain and the frontier information. The proposed method includes the topological structure information of the environment on the path to the candidate frontier in the frontier selection process, guiding the robot to select a frontier with rich environmental information to reduce perceptual uncertainty. Experiments are carried out in different environments with the state-of-the-art RRT-exploration method as a reference. Experimental results show that with the proposed strategy, the efficiency of robot exploration has been improved obviously.

III.—On the Occurrence of Concretionary Masses of Flint and Chert in the Maltese Limestones

1893 ◽  
Vol 10 (4) ◽  
pp. 157-160 ◽  
Author(s):  
John H. Cooke
Keyword(s):  
Restricted Area ◽  
Maltese Islands ◽  
Mode Of Occurrence

The late Admiral Spratt, R.N., and Dr. John Murray, of the “Challenger” Expedition, have, in their brochures on Maltese Geology, made allusion en passant to the occurrence of chert nodules in the Globigerina limestones of the Maltese islands. Neither of these gentlemen, however, gave any details of the nature, mode of occurrence, or distribution of the concretions, an omission which was probably due to the restricted area of the horizon at which the nodules are found, and to the irregular and sparse manner in which thev are distributed.

scholarly journals Comparative Analysis of the Related Interests of Relevant Stakeholders in the Development of Seaports in Relation to the Spatial Concept of the City

Pomorstvo ◽  
2018 ◽  
Vol 32 (1) ◽  
pp. 36-41
Author(s):  
Donald Schiozzi ◽  
Alen Jugović ◽  
Željko Smojver
Keyword(s):  
Local Community ◽  
Well Being ◽  
Restricted Area ◽  
Spatial Concept ◽  
Transport Chain ◽  
State Economy ◽  
Community Economy ◽  
Qualitative Variables ◽  
The City

The seaport, as a link of the transport chain, is oriented towards the development of the maritime system of the country and the summit place of traffic slope from all transport routes and means of transport. While the city, as a community of residents, is oriented towards promoting the well-being of citizens and the quality of their lives, so it strives to ecological, cultural and visual values. This relation of interest is merely one of the numerous relations of interest of the relevant stakeholders in the planning and development of the seeports in relation to the spatial concept of cities deriving from a constrained coexistence in a restricted area – as two separate entities whose interests and objectives appear to be different at first sight. In this paper, the relations of interest of the relevant stakeholders have been analyzed, quantitative and qualitative variables have been evaluated that influence the development of the seaports in relation to the spatial concept of the city. The research has highlighted the need to look at and analyze all relevant stakeholders interests, of which the most important are: state – local community, state – managing body of the port, state – economy, local community – managing body of the port, local community – economy and economy – managing body of the port.

scholarly journals Automatic Damaged Number Plate Recognition System In Image Processing

2019 ◽  
Vol 8 (6S2) ◽  
pp. 287-291
Keyword(s):  
Image Processing ◽  
Recognition System ◽  
Planning System ◽  
License Plate ◽  
Restricted Area ◽  
Proof Scheme ◽  
Optical Character ◽  
The Supreme Court ◽  
Security Control ◽  
Real Goal

The use of the NPR (Number Plate Recognition) is a structure expected to assist confirm the number tags of cars. This structure is anticipated to have the real goal of the security system. This structure is based on an image planning system. This scheme helps to distinguish between the number plates of the cars, to prepare them and to use the information taken care of for further methodology such as securing, empowering the car to pass or to expel the car. NPR is an image scheduling development that utilizes the number (license) plate to acknowledge the car. The goal is to structure a gainful altered attested vehicle unmistakable proof scheme by the use of car number plateThe system is carried out along the route of security control of a particularly restricted area, such as military areas or area around the finest public working settings, such as the Parliament, the Supreme Court, etc. First, the produced system receives a image of the car. The region of the vehicle number plate is evacuated using the picture division in the picture. The optical character affirmation method is used to confirm the character. The resulting information is then used to distinguish and record the information in the database. The structure is performed and impersonated in Python, and the execution is tried on a licensed image. It is seen from the outset that the produced structure acknowledges and sees the car amount vividly.

scholarly journals Creación de implantes 3D en procesos de conservación y restauración de vidrio arqueológico

2017 ◽  
Vol 8 (16) ◽  
pp. 103 ◽  
Author(s):  
Carmen Díaz-Marín ◽  
Elvira Aura-Castro
Keyword(s):  
3D Model ◽  
Three Dimensional ◽  
Acrylonitrile Butadiene Styrene ◽  
Virtual Model ◽  
Restricted Area ◽  
Non Invasive ◽  
3D Data ◽  
Invasive Method ◽  
Glass Bowl ◽  
Butadiene Styrene

This article describes the restoration of a glass bowl from the 16th-17thcentury by creating its three-dimensional (3D)model. The final purpose is to work with this model in order to avoid damaging situations that are associated with the manipulation of fragile objects. The gap areas, those corresponding to the missing fragments not found in the excavation, were carried out by constructing digital implants. A restricted area of the 3D model has been duplicated in order to accommodate it to confined intervals of the gap. The final implants were printed with acrylonitrile butadiene styrene (ABS) filament. These implants replace the lost areas and give stability back to the item by recovering the original morphology. The result can be compared with the outcome obtained by a traditional process, but differs due to the fact that requires minimum manipulation of the item, so it can contribute to preserve and safeguard the restored object. This is a non-invasive method which is offered as an alternative treatment, where the archaeological object is replaced by its virtual model in the steps of the process after 3D data acquisition. Significant differences have not been found in the 3D printing results obtained with the two types of filaments tested (white and clear).

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