scholarly journals Applications in remote sensing and environmental analysis

2021 ◽  
Vol 17 (5) ◽  
Author(s):  
Alisson Rodrigues Santori ◽  
Patricia Helena Mirandola Garcia ◽  
José Candido Stevaux
Keyword(s):  
Environmental Analysis ◽  
Environmental Planning ◽  
General System ◽  
Structural Morphology ◽  
Environmental System ◽  
Systemic Theory ◽  
Environmental Component ◽  
Dynamic Components ◽  
Modeling Data ◽  
Different Characteristics

The present study aims to describe the morphologic and geographic structuring and report a relief morphometric analysis in a cutout of the environmental planning. To do so, geoprocessing techniques were widely used and supported by systemic theory. The main objective is to process relief data in Geographic Information System (GIS) and contribute to the database of characteristics from different local geomorphometric variables. Thus, the theorical basis of the research suggests the use of General System Theory based on their concepts to understand the morphologic structure of the relief at different levels, also the condition of the relief shapes and their classification. This case study occurs methodologically, defining the relief category as an environmental component of direct and vital interaction with other resources and dynamic components, considering mainly the whole environmental system. In this study, the environmental system is the Sucuriú River watershed. Therefore, to get the environmental analysis of the relief, the methodology consists of pre-processing and processing of digital land modeling data based on Synthetic Aperture Radar (SAR) records. Those can obtain different characteristics by using the methodology of geomorphometric variables extraction, which are the set of variables subject to land measuring. The results should cartographically reveal the dynamics and structural morphology of the relief, observing important parameters of relief configuration and concluding with the presentation and correlation of the relief shapes dynamics in all the considered environmental system.

Friction Welding Structures of Carburized Steels

2010 ◽  
Vol 638-642 ◽  
pp. 3781-3786 ◽  
Author(s):  
Ion Mitelea ◽  
Corneliu Marius Crăciunescu
Keyword(s):  
Friction Welding ◽  
Intermetallic Phases ◽  
Rotational Energy ◽  
Manufacturing Industries ◽  
Critical Problem ◽  
High Reproducibility ◽  
Structural Morphology ◽  
The Core ◽  
Friction Energy ◽  
Different Characteristics

Friction welding is one of the most reliable joining techniques for various materials due to a high reproducibility, lack of ecological treats and a relatively narrow thermomecanical affected zone. It offers multiple applicative opportunities in various fields – from automotive and manufacturing industries as well as for special destinations – leading to incontestable technical and economical advantages. However, the friction welding of materials with compositional and/or structural gradients is a critical problem due to the high probability of cracks occurrence, the formation of intermetallic phases that increase the brittleness and a high gradient for residual stresses. The paper refers to the particularities of graded welds through which the rotational energy will be transformed by friction into heat in the surface layer with a certain structural morphology, as well as in the core with different characteristics. Experiments have been performed in order to assess the process parameters which provide the optimal friction energy for an adequate plastifiation of the materials. Macro and optical micrographic investigations corroborated with electron microscopy and hardness measurements provide information concerning the hardening of the thermomecanically affected zone and the formation of seam as result of expulsion of the carburized layer.

scholarly journals Research on the Use of Neural Network for the Prediction of College Students’ Mental Health

2022 ◽  
Vol 2022 ◽  
pp. 1-8
Author(s):  
Haoyue Liu ◽  
Jilin Xu
Keyword(s):  
Mental Health ◽  
College Students ◽  
Back Propagation ◽  
Personal Characteristics ◽  
Psychological Problem ◽  
Bp Algorithm ◽  
Building Model ◽  
Initial Stage ◽  
Modeling Data ◽  
Different Characteristics

A healthy mental status of students plays an important role in getting quality of education. Hence, research on the prediction of college students’ mental health status is of great importance and considered as a hot area of research. In this specific research study, back propagation (BP) algorithm is adopted to learn verities of characteristics of different students from the historical data of the students including: psychological characteristics, basic personal characteristics, and socio-economic characteristics. In the initial stage of the modeling, data preprocessing steps are used to prepare the data to be used by the BP algorithm for building model. The rationales behind the use of BP algorithm are its capability of handling heterogeneity of data and exploring correlations among different characteristics. The proposed model enhances the capability of BP algorithm for risk prediction of psychological problem of the students and achieves higher precision of psychological problem prediction. The results obtained show that the error between the predicted and measured values is 0.88%.

scholarly journals The Systemic Theory of Living Systems and Relevance to CAM: the Theory (Part III)

2005 ◽  
Vol 2 (3) ◽  
pp. 267-275 ◽  
Author(s):  
José A. Olalde Rangel
Keyword(s):  
Medical Science ◽  
General System ◽  
Living System ◽  
Living Systems ◽  
Self Organization ◽  
Unified Theory ◽  
Systemic Theory ◽  
Central Controller ◽  
Key Points ◽  
Systems Intelligence

Western medical science lacks a solid philosophical and theoretical approach to disease cognition and therapeutics. My first two articles provided a framework for a humane medicine based on Modern Biophysics. Its precepts encompass modern therapeutics and CAM. Modern Biophysics and its concepts are presently missing in medicine, whether orthodox or CAM, albeit they probably provide the long sought explanation that bridges the abyss between East and West. Key points that differentiate Systemic from other systems' approaches are ‘Intelligence’, ‘Energy’ and the objective ‘to survive’. The General System Theory (GST) took a forward step by proposing a departure from the mechanistic biological concept—of analyzing parts and processes in isolation—and brought us towards an organismic model. GST examines the system's components and results of their interaction. However, GST still does not go far enough. GST assumes ‘Self-Organization’ as a spontaneous phenomenon, ignoring a causative entity or central controller to all systems: Intelligence. It also neglects ‘Survive’ as the directional motivation common to any living system, and scarcely assigns ‘Energy’ its true inherent value. These three parameters, Intelligence, Energy and Survive, are vital variables to be considered, in our human quest, if we are to achieve a unified theory of life.

scholarly journals Environmental Aspects of the European Experience in Landscape Planning

2022 ◽  
Vol 17 (1) ◽  
pp. 301-310
Author(s):  
Bao Yu ◽  
◽  
Jianmei Wang ◽  
Ya Li ◽  
◽  
...  
Keyword(s):  
Environmental Planning ◽  
Landscape Planning ◽  
Nature Management ◽  
Source Information ◽  
Environmental Aspects ◽  
Problem Situations ◽  
European Experience ◽  
Effective System ◽  
Environmental Component ◽  
Potential Customers

Understanding all the possibilities of environmentally oriented landscape planning will contribute to the effective environmental planning of the territory and nature management in general. Accordingly, the purpose of the study was to investigate the experience of the European countries towards the introduction of an effective system of environmentally oriented landscape planning and improvement of territories, as well as their protection. For this purpose, it is necessary to comprehensively study the strengths and weaknesses of existing developments in the field of environmentally oriented landscape planning in Europe. An analysis of the best practices of environmentally oriented landscape planning in such countries as Great Britain, France, Germany, the Netherlands, etc. has been conducted. The findings allowed to state that the effectiveness of development and implementation of substantial planning for landscape design depends not only on the volume and depth of research, but to a very large extent from their reasonable and productive organisation. The paper summarises that in environmentally oriented landscape planning, it is first necessary to determine the reasons for planning. Before choosing the object and territory of planning, it is necessary to find out: who are the potential customers and investors – their goals and motivation; what are the problem situations and conflicts in nature management in the area; what is the practical use of the results of landscape planning; the purpose of the territory, including cartographic; the availability of source information, and more. And then make decisions regarding the stages of landscape planning, taking into account the environmental component and, accordingly, the implementation of the idea of landscape planning.

Fine structural morphology of immunocytes of some molluscs and insects

1990 ◽  
Vol 48 (3) ◽  
pp. 386-387
Author(s):  
S.G. Pal ◽  
G. Baur ◽  
B. Ghosh ◽  
S. Palit ◽  
S. Modak ◽  
...  
Keyword(s):  
Blood Cells ◽  
Phosphate Buffer ◽  
Room Temperature ◽  
Structural Information ◽  
Uranyl Acetate ◽  
Meretrix Meretrix ◽  
Lead Citrate ◽  
Bivalve Molluscs ◽  
Structural Morphology ◽  
Ultrathin Sections

In recent years some of the blood cells of several molluscs and insects are characterised as immunocytes. Similar cells from a few invertebrates from India have been looked into under conventional TEM to register the ultrastructural features. This type of study is first of its kind in the subcontinent. Immunocytes from bivalve molluscs Meretrix meretrix, Laroellidens marqinalis and two insect species, apterygote Ctenolepism a longicaudata and pterygote Gesonula punctifrons provide a new set of fine structural information which forms a basis of comparison with those studied earlier.Immunocytes have been collected from the fresh live species of bivalve molluscs and insects obtained locally at Calcutta. These were fixed in icecold 2% glutaraldehyde in 0.1M phosphate buffer (pH 7.2-7.4) for 1-2 hours at 4-5°C. Subseguently pellets were post-osmicated in 1% OsO4 at room temperature for 1-2 hours. Following dehydration these were embedded in Araldite mixture in plastic capsules and polymerization was effected for 2 days at 60°C. Ultrathin sections were cut in a ultrotome and sections were double stained with Uranyl acetate and lead citrate. These were viewed in a TEM.

Positional Estimation Within a Latent Space Model for Networks

Methodology ◽  
2006 ◽  
Vol 2 (1) ◽  
pp. 24-33 ◽  
Author(s):  
Susan Shortreed ◽  
Mark S. Handcock ◽  
Peter Hoff
Keyword(s):  
Random Effects ◽  
Network Data ◽  
Random Effects Models ◽  
Space Model ◽  
Network Analyses ◽  
Recent Advances ◽  
Latent Space ◽  
Latent Space Model ◽  
Modeling Data

Recent advances in latent space and related random effects models hold much promise for representing network data. The inherent dependency between ties in a network makes modeling data of this type difficult. In this article we consider a recently developed latent space model that is particularly appropriate for the visualization of networks. We suggest a new estimator of the latent positions and perform two network analyses, comparing four alternative estimators. We demonstrate a method of checking the validity of the positional estimates. These estimators are implemented via a package in the freeware statistical language R. The package allows researchers to efficiently fit the latent space model to data and to visualize the results.

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