162 research outputs found
Geodetic datums of the Italian cadastral systems
No full textThe geodetic datum, and its possible descriptions, of the Italian cadastral networks are analyzed, in order to provide a solution to fit the cadastral sheets to modern map contents and grids, using just their corner crosshair data. Analyzing the extension of the Genova 1902 datum to the whole Italian territory, it occured that the transformation error is acceptable only in the original survey area of the respective triangulation net. For Souther Italy and Sicily (Sicilia), the errors exceed the 20 meters. The Molodensky-type transformation parameters of the Castanea della Furie 1910 and the Guardia Vecchia (Sardinia) datums are provided using only their fundamental point coordinates, without error estimation. While these datums are not correctly checked at their whole application are, we suggest to define local datums of the Bessel ellipsoid, using the Bessel and WGS84coordinates of the respective cadastral grid origins and use them for geo-reference as a basis of the local Cassini grids
Proposal of an abridged procedure to manage Cadastral maps in an open GIS package
No full textCadastral cartography, born after unification of Italy in 1870, is an important source of large scale geographic
information.
Cadastral maps represent the result of the largest scale survey of on the whole national territory. Because of
their large scale, their creation is extremely expensive and the updating of the cadastre claim considerable
funds from the state budgets. That’s why the coordinate system, the geodetic basis of a cadastral work, is
rarely changed.
Even if Gauss-Boaga grid system based on ROMA40 datum was introduced and applied at some smaller
parts of the country, the cartographic coordinates manly used in the cadastral maps are based on CassiniSoldner
projection and cadastral datum Bessel-Genova; Bessel_Monte Mario and Bessel Castanea delle
Furie.
In the Cassini-Soldner projection, the whole Italian territory is subdivided in 31 major ("grandi origini") and
more than 800 local ("piccole origini") cadastral systems.
Nowadays, it is fundamental the implementation of a fast and free procedure for the updating of cadastral
maps from Italian cadastral datum to modern WGS84.
The two main goals of this paper are: the identification of a suitable set of points with coordinates known in
both datums and the computation of Abridging Molodensky parameters from Cassini-Soldner cadastral
datum to WGS84. The test area selected is the district of Rome called “Città metropolitana di Roma
Capitale” .
The data set of points suitable for the least-square estimation is extracted from the information available on
the website www.globogis.it/fiduciali.it.
The "globogis" database includes a selection of trigonometric points, with coordinates expressed in the
WGS84 datum, and a selection of cadastral points ("punti fiduciali") with coordinates expressed in the
Bessel-Genova 1902 datum. The whole database is analysed in order to provide the correct association
between cadastral and trigonometric points.
Known the dataset of points, the Abridging Molodensky parameters are estimated with a least square
principle using a specific package developed by Prof. Timar.
The estimated parameters are implemented and tested in the open source software QGIS. The accuracy of
Abridging Molodensky parameters is tested using an independent set of point with respect to the estimation
points
Luminescence properties of natural muscovite relevant to optical dating of contaminated quartz samples
No full textMuscovite is a mineral commonly found along quartz in sediments, where the latter is the mineral of choice in numerous optically stimulated luminescence (OSL) dating studies. Since muscovite cannot be efficiently eliminated following standard laboratory treatments, it is important to assess its luminescence properties. This study is focused on the investigation of muscovite hand-picked from a quartz sample extracted from loess and of museum specimens of muscovite in order to evaluate their potential implication in the OSL dating of quartz samples contaminated with muscovite grains. The obtained results show that generally applicable luminescence characteristics cannot be described for muscovite. In terms of the thermoluminescence (TL) response, all samples investigated display the same wide peak at 200 °C. The blue light and infrared (IR) sensitivities differ between the samples: 3 out of 5 samples present no or negligible level of OSL and IRSL response, while the other 2 samples are characterised by both blue light (2000–3400 counts in 0.31 s of stimulation for 10 mg of muscovite after irradiation with a dose of 136 Gy) and IR sensitivity (265–320 counts in 0.31 s of stimulation for 10 mg of muscovite after irradiation with a dose of 136 Gy). Based on the samples analysed in this study, aliquots of quartz contaminated with optically (blue light) sensitive muscovite would also be IR sensitive. Hence, potentially problematic aliquots can be identified via the IRSL purity test usually used in the OSL dating of quartz samples for detection of feldspar contamination. The impact of muscovite on dose determination for quartz was also tested and it was concluded that at least in the case of bright quartz, muscovite minerals do not influence the OSL measurements.</p
Remembering the Jewish student dormitory Belgrade
No full textJevrejski studentski dom se nalazio u zgradi sinagoge u Beogradu u ulici Maršala Birjuzova broj 19, tada Kosmajska 19. Na levoj strani zgrade, od prizemlja do trećeg sprata. Sobe, spavaonice, nalazile su se na drugom i trećem spratu. Na prvom spratu se nalazila učionica, a u prizemlju se nalazila trpezarija. Na drugom spratu su bila kupatila, muško i žensko. Jevrejski studentski dom formiran je krajem 1945 godine. Trajao je do 1957 ili 1958 godine, kada više nije bilo studenata u domu. Ko su bili domaši?
To su bili posleratni beskućnici, čije su porodice i domaćinstva bili potpuno ili delimično uništeni, to su bili omladinci koji su slučajno ostali u životu u koncentracionim ili logorima uništenja, koji su se vratili iz ratova u partizanima ili bili u ilegali, ili se skrivali za vreme okupacije od nacistickih dželata ili od domaćih kvislinga, ili su se vratili iz nemačkih ili sovjetskih zarobljeništava, ili nisu sebi mogli da priušte iznajmljivanje privatnih soba ako su bili iz unutrašnjosti. Oni su bili pretežno is Srbije, ali bili su i iz Makedonije i Bosne i Hercegovine. Za sve njih Jevrejski studentski dom je bilo PORODIČNO UTOČIŠTE.The Jewish students' dormitory was located in the building of the synagogue in Belgrade at 19 Maršala Birjuzova Street, then Kosmajska 19. On the left side of the building, from the ground floor to the third floor. The rooms, the dormitories, were on the second and third floors. There was a classroom on the first floor and a dining room on the ground floor. On the second floor were the male and female bathrooms. The Jewish dormitory was formed at the end of 1945. It lasted until 1957 or 1958 when there were no more students in the dormitory. Residents were post-war homeless people, whose families and households were completely or partially destroyed, these were young people who happened to be alive in concentration or extermination camps, who returned from wars in partisans or were illegal, or hid behind during the occupation by Nazi executioners or by domestic quislings, they either returned from German or Soviet captivity or could not afford to rent private rooms if they were from the interior. They were mostly from Serbia, but they were also from Macedonia and Bosnia and Herzegovina. For all of them, the Jewish dormitory was a FAMILY SHELTER.Autor je sa ovim radom 2015. godine učestvovao na 59. nagradnom konkursu Saveza jevrejskih opština Srbije.With this paper, in 2015, the author participated in the 59th award competition of the Federation of Jewish Communities of Serbia
Origin and consolidation of fief-holding Timar system in the Ottoman State
No full textНа базі османських джерел та літератури з обраної проблематики автор подає огляд та
аналіз проблеми виникнення, походження військово-ленної тимарної системи та її закріплення в Османській державі. Тимарна система давала можливість утримувати багаточи-
сельну армію при скромних фінансових ресурсах і нерозвиненій фіскальній системі, оподатковувати всіх виробників і збирати податки повністю. Тимарна система - османська інсти-
туція, уведена на початку зростання могутності Османської держави, відіграла надзвичайно
важливу, фундаментальну роль в історії існування державної формації, сприяла її розквіту;
криза тимарної системи призвела до занепаду держави.On the basis of Ottoman written origins and literature of this problem the author presents the review and analysis of the
genesis, origin and consolidation consolidation of fief-holding timar system in the Ottoman State. Timar systemgave the opportunity
to keep the numerous army with poor financial resourses and undeveloped fiscal system, gave opportunity taxation all producers
and tocollect all taxes. This system is osman institution, which was introduced in the beginning of growth might Ottoman State,
played a very important, fundamental role in the history of existence of this state formation, promoted of prosperity.Crisis of
timar system caused for decline of might of the stat
Origin and consolidation of fief-holding Timar system in the Ottoman State
No full textНа базі османських джерел та літератури з обраної проблематики автор подає огляд та
аналіз проблеми виникнення, походження військово-ленної тимарної системи та її закріплення в Османській державі. Тимарна система давала можливість утримувати багаточи-
сельну армію при скромних фінансових ресурсах і нерозвиненій фіскальній системі, оподатковувати всіх виробників і збирати податки повністю. Тимарна система - османська інсти-
туція, уведена на початку зростання могутності Османської держави, відіграла надзвичайно
важливу, фундаментальну роль в історії існування державної формації, сприяла її розквіту;
криза тимарної системи призвела до занепаду держави.On the basis of Ottoman written origins and literature of this problem the author presents the review and analysis of the
genesis, origin and consolidation consolidation of fief-holding timar system in the Ottoman State. Timar systemgave the opportunity
to keep the numerous army with poor financial resourses and undeveloped fiscal system, gave opportunity taxation all producers
and tocollect all taxes. This system is osman institution, which was introduced in the beginning of growth might Ottoman State,
played a very important, fundamental role in the history of existence of this state formation, promoted of prosperity.Crisis of
timar system caused for decline of might of the stat
Origin and consolidation of fief-holding Timar system in the Ottoman State
No full textНа базі османських джерел та літератури з обраної проблематики автор подає огляд та
аналіз проблеми виникнення, походження військово-ленної тимарної системи та її закріплення в Османській державі. Тимарна система давала можливість утримувати багаточи-
сельну армію при скромних фінансових ресурсах і нерозвиненій фіскальній системі, оподатковувати всіх виробників і збирати податки повністю. Тимарна система - османська інсти-
туція, уведена на початку зростання могутності Османської держави, відіграла надзвичайно
важливу, фундаментальну роль в історії існування державної формації, сприяла її розквіту;
криза тимарної системи призвела до занепаду держави.On the basis of Ottoman written origins and literature of this problem the author presents the review and analysis of the
genesis, origin and consolidation consolidation of fief-holding timar system in the Ottoman State. Timar systemgave the opportunity
to keep the numerous army with poor financial resourses and undeveloped fiscal system, gave opportunity taxation all producers
and tocollect all taxes. This system is osman institution, which was introduced in the beginning of growth might Ottoman State,
played a very important, fundamental role in the history of existence of this state formation, promoted of prosperity.Crisis of
timar system caused for decline of might of the stat
paramagnetic centers in irradiated sedimentary quartz
No full textThe effect of thermal excitation on paramagnetic defects in natural sedimentary quartz irradiated with different doses of gamma radiation was studied using electron spin resonance (ESR) spectroscopy. We report a variation in the activation energy and the frequency factor for [AlO4/h+]0 and [TiO4/M+]0 paramagnetic defects with the gamma dose, for a dose range investigated between ∼100 Gy and ∼40 000 Gy. Our results indicate that both [AlO4/h+]0 and [TiO4/M+]0 defects are less thermally stable above 1 kGy–2 kGy than below this dose range. The correlation between the two kinetic parameters (activation energy and frequency factor) satisfies the Meyer–Neldel rule. A linear correlation was found between the amplitude of the ESR signals of [AlO4/h+]0 and [TiO4/M+]0 paramagnetic defects corresponding to different doses after the application of thermal treatments in the pulse annealing procedure. We propose a mechanism involving the exchange of the cation, assigned mainly to Li+ here, between the two defects. Under irradiation, the cation is removed from [AlO4/M+]0 (forming [AlO4/h+]0) to [TiO4]− (forming [TiO4/M+]0), while under heating, the reverse mechanism takes place.The migration energy of the cation from one defect to another was found to be about 51 meV, corresponding to a temperature of
about 325 ○C
Dating Sediments by EPR Using Al-h Centre: A Comparison between the Properties of Fine (4–11 µm) and Coarse (>63 µm) Quartz Grains
No full textThe possibility of EPR dating for sediments using Al-h signals of fine (4–11 μm) grains of quartz has not been previously discussed. Here, the Al-h and peroxy EPR spectra of fine (4–11 μm) and coarse (63–90, 125–180 μm) sedimentary quartz from thoroughly investigated loess sites in Eastern Europe were examined. By comparing experimental spectra with a simulated signal, we evaluated the overestimation observed when using the standard approach established by Toyoda and Falguères to measure Al-h intensity for different doses of radiation, up to 40,000 Gy. This overestimation, caused by the presence of peroxy signals, was much more pronounced for fine grains. Fine grains exhibited some additional dose-dependent signals, which, for some samples, caused a complete distortion of the Al-h spectra at high doses, making it impossible to measure the standard amplitude. We propose a new approach to measuring Al-h signal intensity, focusing on the peak-to-baseline amplitude of the part of the signal at g ≈ 2.0603, which is not affected by the peroxy signals and therefore has the potential of providing more accurate results. The shapes of dose response curves constructed for coarse and fine grains using the new approach show considerable similarity, suggesting that Al-h centre formation in fine and coarse grains upon artificial radiation at room temperature follows the same pattern
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