scholarly journals USE OF NEW TECHNOLOGIES FOR THE SYSTEMATIC NAUTICAL CARTOGRAPHIC MAPPING OF THE PARAGUAY RIVER WATERWAY

GEOGRAFIA ◽  
2018 ◽  
Vol 42 (3) ◽  
pp. 175-183
Author(s):  
Paulo Pereira Oliveira MATOS ◽  
Juarez Cerqueira FERREIRA ◽  
Victor Hugo do Espírito Santo CONCEIÇÃO

One of the main cargo corridors of the Brazilian West region is the Paraguay River. Currently, the Paraguay River Waterway moves more than seven million tons of cargo, being the second largest waterway for cargo movement in Brazil. However, for the uick and safe transport of goods it is essential to have a proper, systematic and complete mapping of the river bed. This work, in charge of the Brazilian Navy and dating back to the Nautical Cartographic Basic Plan of 1935, is performed with the construction of oficial nautical documents, aiming the navigation safety. These cartographic documents, called Official Nautical Charts, are the result from the mapping process, originated from the collection of bathymetric data on specific spots. This collection used always the most modern technologies available and recently, single beam echo-sounders and accurate positioners. Today new technologies are available, including the multi-beam echo-sounder, equipment with several advantages, allowing, among others, the full coverage of the riverbed. This article describes this paradigm shift for the collection of bathymetric data in Paraguay River basin, presenting the preliminary findings and conclusions from the use of this technology

Author(s):  
А.Д. Кульдышева

в статье говорится об использовании и образовательных возможностях различных современных технологий в музеях. Приводятся и анализируются различные технологические разработки в данной сфере. the article deals with the use of various modern technologies in museums and their educational opportunities. Various technological developments are presented and analyzed.


Author(s):  
Edita Povilaitytė-Leliugienė

The analyses of interwar Vilnius heritage preservation, research, and maintenance concentrated mostly on discussions about the general law, state tendency, and case studies of good and bad practices. However, the more modern heritage preservation, research, or maintenance theories and aspects during the interwar period were neglected. Therefore, this article aims to analyse if modern technologies, ideas, and methods in the heritage research and maintenance (mostly in the reconstructions and adaptation of heritage buildings for new purposes) projects were adapted or not in interwar Vilnius. According to this aim, the article analyses a few heritage maintenance works and emphasises how architects used new technologies, modern architecture details, and ideas in the heritage maintenance projects and their realisation. Technologies as central heating system, electrification, canalisation, toilets, or bright interiors, wide air-spaces were inseparable from modernism perspective. The architecture of buildings and urban structures were modernised and improved for better living quality. Also, ideas and technologies did not avoid the heritage objects, especially civil buildings as Vilnius Town Hall, squares as Cathedral square, defensive heritage object as Vilnius Upper Castle. However, the analysis maintains that modern technologies were used moderately and kept a respectful tone with the authentic heritage, whole complex, and elements.


Sensors ◽  
2018 ◽  
Vol 18 (9) ◽  
pp. 2926 ◽  
Author(s):  
Yeon Yeu ◽  
Jurng-Jae Yee ◽  
Hong Yun ◽  
Kwang Kim

Bathymetric mapping is traditionally implemented using shipborne single-beam, multi-beam, and side-scan sonar sensors. Procuring bathymetric data near coastlines using shipborne sensors is difficult, however, this type of data is important for maritime safety, marine territory management, climate change monitoring, and disaster preparedness. In recent years, the bathymetric light detection and ranging (LiDAR) technique has been tried to get seamless geospatial data from land to submarine topography. This paper evaluated the accuracy of bathymetry generated near coastlines from satellite altimetry-derived gravity anomalies and multi-beam bathymetry using a tuning density contrast of 5000 kg/m3 determined by the gravity-geologic method. Comparing with the predicted bathymetry of using only multi-beam depth data, 78% root mean square error from both multi-beam and airborne bathymetric LiDAR was improved in shallow waters of nearshore coastlines of the western Korea. As a result, the satellite-derived bathymetry estimated from the multi-beam and the airborne bathymetric LiDAR was enhanced to the accuracy of about 0.2 m.


2003 ◽  
Vol 52 (1) ◽  
pp. 83-88
Author(s):  
Victor E. Radzinsky

New technologies in herb therapy (extractions and dosed ingredients) have good results in long treatment of pregnant women with extra genital diseases, gestoses, hypotrophia and hypoxia of fetus.


Author(s):  
Olga Alekhina

The article examines the functional responsibilities and competencies of modern specialists who work in the advertising field, public communications, and marketing communications. Those specialists have to be ready for constant changes and the use of current technologies because the communication sphere is very mobile, also depends on the use of new technologies, and is associated with the development of the infosphere. And because of that, the employers’ requirements for candidates are constantly updated. To compare presented in the scholarly literature theoretical models and the modern employers’ requirements, the author studied the traditional specialists’ functions and competencies, which are described in scientific works, higher education programs, and state educational standards. Also, was made a cut of the employers’ practical expectations who post job openings on the Headhunter website, which is one of the most popular jobs search and recruiting services. Also were analyzed requirements for a large Russian and international companies stated in the openings posted in January–June 2020. Based on the analysis, the author concludes the ratio of traditional and new functions in the communicative field workers’ job, about the requirements for their knowledge and skills, which are divided into the categories of hard skills and soft skills. As a result, it was concluded that modern employers are in demand for specialists who can perform traditional functions that have proven their effectiveness, as well as use all relevant modern technologies in their job. The equally important right combination of hard skills and soft skills as the basis of the professional activity of a modern specialist.


2021 ◽  
Author(s):  
Iman el guertet ◽  
Abdellatif aarab ◽  
Abdelkader larabi ◽  
Mohammed Jemmal ◽  
Sabah benchekroun

<p>archaeological sites have been always a subject of curiosity and search, the archaeologists and scientists from different specialties have been wondering about the origins of the man civilization, about the way our forefathers lived, how they nourished, dressed, and housed themselves, what techniques were used for the transport, the fishing, and the business, about the culture and the spiritual practices. in fact, the modern technologies, practices, and innovations are only a continuation of what was once; this is why the human being believes it is imperative to revive and understand the heritage and to discover its secrets. in the present work which pours in the same direction, we decided to revive and explore a wealthy site located in rabat, the Moroccan capital, this site is named chellah, which represents the summing up of historical eras from the antiquity to the Islamic period and which is marked by the presence of antique and Islamic constructions which reflect this continuity. our research aims to build a model for the detection of areas that are not yet excavated but are already mentioned by archaeologists, geographers, and historians to validate their hypothesis and to find out where exactly these areas are located. our methodology is based on the processing of unmanned aerial vehicle<strong> (uav)</strong> images to generate high-resolution photogrammetric products with low cost, those datasets will be analyzed with a technique that has been in use since the '80s and which is using crop, soil, and shadow marks visualized on images taken by aerial photography. this analysis gave us the vision to select the zones on which a geophysical investigation by electrical tomography was carried out to approve the presence of the archeological components that require future excavation. our study focused on the importance of non-invasive methodologies for the study, preservation, and valorization of archaeological sites.</p>


2021 ◽  
Author(s):  
Ramez Saeed ◽  
Saad Abdelrahman ◽  
Andrea Scozari ◽  
Abdelazim Negm

<p><strong>ABSTRACT</strong></p><p>With the fast and highly growing demand for all possible ways of remote work as a result of COVID19 pandemic, new technologies using Satellite data were highly encouraged for multidisciplinary applications in different fields such as; agriculture, climate change, environment, coastal management, maritime, security and Blue Economy.</p><p>This work supports applying Satellite Derived Bathymetry (SDB) with the available low-cost multispectral satellite imagery applications, instruments and readily accessible data for different areas with only their benthic parameters, water characteristics and atmospheric conditions.  The main goal of this work is to derive bathymetric data needed for different hydrographic applications, such as: nautical charting, coastal engineering, water quality monitoring, sediment movement monitoring and supporting both green carbon and marine data science.  Also, this work proposes and assesses a SDB procedure that makes use of publicly-available multispectral satellite images (Sentinel2 MSI) and applies algorithms available in the SNAP software package for extracting bathymetry and supporting bathymetric layers against highly expensive traditional in-situ hydrographic surveys. The procedure was applied at SAFAGA harbor area, located south of Hurghada at (26°44′N, 33°56′E), on the Egyptian Red Sea coast.  SAFAGA controls important maritime traffic line in Red Sea such as (Safaga – Deba, Saudi Arabia) maritime cruises.  SAFAGA depths change between 6 m to 22m surrounded by many shoal batches and confined waters that largely affect maritime safety of navigation.  Therefore, there is always a high demand for updated nautical charts which this work supports.  The outcome of this work provides and fulfils those demands with bathymetric layers data for the approach channel and harbour usage bands electronic nautical chart of SAFAGA with reasonable accuracies.  The coefficient of determination (R<sup>2</sup>) differs between 0.42 to 0.71 after applying water column correction by Lyzenga algorithm and deriving bathymetric data depending on reflectance /radiance of optical imagery collected by sentinel2 missions with in-situ depth data values relationship by Stumpf equation.  The adopted approach proved to give  highly reasonable results that could be used in nautical charts compilation. Similar methodologies could be applied to inland water bodies.  This study is part of the MSc Thesis of the first author and is in the framework of a bilateral project between ASRT of Egypt and CNR of Italy which is still running.</p><p><strong>Keywords: Algorithm, Bathymetry, Sentinel 2, nautical charting, Safaga port, satellite imagery, water depth, Egypt.</strong></p>


Author(s):  
М.Ю. ТАМОВА ◽  
Е.В. БАРАШКИНА ◽  
Р.А. ЖУРАВЛЕВ ◽  
Н.Р. ТРЕТЬЯКОВА ◽  
Е.С. ФРАНЧЕНКО

Рассмотрены перспективы получения пищевых волокон (ПВ) из вторичных продуктов АПК. Приведены результаты анализа опубликованных исследований о перспективах получения ПВ, проявляющих детоксикационную и адсорбционную активность, с целью обогащения ими продуктов питания. Рассмотрены современные технологические решения получения ПВ из продуктов переработки сахарной свеклы и яблок. Признано целесообразным дальнейшее проведение научно-экспериментальных разработок новых технологий получения ПВ из растительного сырья с применением электромагнитного поля крайне низких и сверхвысоких частот. The prospects of obtaining dietary fibers (DF) from secondary products of agriculture are considered. Results of the analysis of sources on the prospects of receiving the DF showing detoxification and adsorption activity for the purpose of enrichment of food by them are given. Modern technology solutions of receiving DF from products of processing of sugar beet and apples are given. Further carrying out scientific and experimental developments of new technologies of receiving DF from vegetable raw materials with application of the electromagnetic field of extremely low and ultrahigh frequencies is perspective.


Author(s):  
John Hughes Clarke

Bathymetric data are needed to derive the morphological criteria that define the extent of the juridical continental shelf. Two features in particular, the '"foot of slope" and the 2500-m contour, must be defined. The previous chapter considered historical methods of determining bathymetry. This chapter will cover the present day methods that can be used to better meet the need for accurate bathymetry. In order to satisfy the demands of UNCLOS, bathymetric data are required in depths ranging from about 200 m to more than 5000 m. Shallower depths, while useful for demonstrating the morphology of the physical continental shelf, do not bear any relevance to the delineation of juridical continental shelf boundaries, other than where they are required to establish the baseline. Alternate methods to derive bathymetry other than using sound are available. Those involving airborne electromagnetic methods (e.g., electromagnetic induction, red-green lasers, and inversion of sea surface radar images) are not capable of determining depths much in excess of 40 m. The only other method potentially useful for deriving deeper water bathymetry is through inversion of sea surface altimetry obtained from satellites. This will be discussed at the end of this chapter. The optimal method thus remains acoustic. The traditional approach has been to use single-beam echo sounders (see previous chapter). This chapter discusses the more modern '"swath" sonar techniques, which are becoming widely used. The great majority of historic bathymetry has been collected using the single-beam sounding approach. As discussed in chapter 9, this method has a number of limitations, three of the most critical of which are i. incomplete coverage; ii. uncertainty about the exact location of the first arrival of the acoustic pulse; and iii. distortion of short-wavelength topography. In order to achieve more complete coverage, better echo location, and higher spatial resolution, methods were devised to project acoustic energy both within narrower solid angles (figure 10.1) and while deriving this information over angular sectors extending further out from the side of the survey vessel. All the methods commonly applied involved scanning the seabed orthogonal to the ship heading. Sequential scans, accumulated as the ship progresses, form a corridor (or swath) of seabed information (figure 10.2).


Author(s):  
Christopher S. Bajwa ◽  
Ronald B. Pope

The International Atomic Energy Agency (IAEA) is entrusted by the Social and Economic Council of the United Nations with developing safety requirements for the safe transport of radioactive material. These requirements were first published as “Regulations for the Safe Transport of Radioactive Material”, Safety Series No. 6, 1961 edition (The Regulations). At the same time, the Director General of the IAEA indicated that these regulations would be revised at appropriate intervals, in consultation with Member States, and with input from other relevant organizations, as appropriate. After 50 years, over 10 revisions of the Regulations have been published. These revisions have been taking into account experiences in transport, newly identified issues, new technologies, best practices, the demand for safer transport, and harmonization. Problems, challenges, the demand for improvements, and the need to provide biennial inputs to international dangerous goods model transport regulations have driven the transport community and the IAEA in particular, to facilitate the regular review and revision of the Regulations. With the passage of time, the scientific and technical heritage of several decades of development in transport safety has begun to fade, and the requirement to capture valuable knowledge which needs to be preserved for future reference has become clear. In general, every requirement in the regulations was developed based on an appropriate technical basis. The technical basis exists in a decentralized manner in many Member States with mature nuclear programs. Easier access to the existing technical bases for the Regulations could lead to a more comprehensive understanding of the Regulations and could inform proposals for change that were previously considered but not accepted for various technical (or political) reasons. Knowledge capture and transfer can contribute to the development of and innovations in, transport safety. This paper provides an overview of the efforts to date that have been undertaken to develop a technical basis document for supporting the current transport regulations and will highlight the future plans for the development of this document.


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