scholarly journals RTI metoda jako způsob digitalizace kulturního dědictví

2022 ◽  
Vol 58 (2) ◽  
pp. 32-38
Author(s):  
Barbora Borůvková ◽  
Klára Burianová

Current technological developments offer an inexhaustible number of procedures for digitization. However, technological equipment intended for teams in professional laboratories reaches price levels that cultural institutions often do not have enough finances. Procedures and methods using equipment, which institutions often already own or are not so expensive to acquire, come to the fore. One of them is the RTI (Reflectance Transformation Imaging) method, which creates a spatial relief composed of a sequence of images with visible lighting. The RTI method is very successful in depicting illegible or wiped details and is already widely used in archaeology.

2017 ◽  
Vol 2 (1) ◽  
pp. 17-21
Author(s):  
Mirabela Morariu ◽  
Lehel Bordi ◽  
Diana Opincariu ◽  
Alexandra Mihaela Ratiu ◽  
Sebastian Condrea ◽  
...  

AbstractCardiac magnetic resonance imaging is an evolving imaging method that can be used in cardiovascular pathology evaluation. Technological developments have increased the clinical utility of cardiac magnetic resonance in the exploration of various cardiac abnormalities. The most important imaging techniques and their utility will be presented in this review, together with the advantages and limitations of cardiac magnetic resonance and with a brief presentation of common cardiac disorders that can be assessed by cardiac magnetic resonance including ischemic heart disease, cardiomyopathies and myocarditis.


Author(s):  
Nthatisi Khatleli

Obsolescence is a major challenge in Infrastructure implementation around the world. South Africa has been implementing PPPs close to 20 years now and some of the first projects will soon come to closure as the end of their term is drawing nigh. Obsolescence is generally mitigated by stipulating that there should be a general overhaul of the facility very close to the end of term in order to preserve and elongate the economic life of the project. However, the health projects are very much dependent on the ever-changing technological developments for their optimal performance. Some of the new technological equipment might require infrastructural adaptations. Through interviewing designers, managers and clients the research sought to garner information that could be helpful for future projects in this sector and that could be adapted to other sectors as well. Although it was found that obsolescence was not properly catered for, the experiences of the aforementioned respondents were valuable in proposing general considerations in future projects. It is hoped that lessons will be instructive and beneficial to the other countries which are new to the PPP procurement method, especially when it comes to the implementation of the health facilities.


Author(s):  
T. Y. Tan ◽  
W. K. Tice

In studying ion implanted semiconductors and fast neutron irradiated metals, the need for characterizing small dislocation loops having diameters of a few hundred angstrom units usually arises. The weak beam imaging method is a powerful technique for analyzing these loops. Because of the large reduction in stacking fault (SF) fringe spacing at large sg, this method allows for a rapid determination of whether the loop is faulted, and, hence, whether it is a perfect or a Frank partial loop. This method was first used by Bicknell to image small faulted loops in boron implanted silicon. He explained the fringe spacing by kinematical theory, i.e., ≃l/(Sg) in the fault fringe in depth oscillation. The fault image contrast formation mechanism is, however, really more complicated.


Author(s):  
Akira Tonomura

Electron holography is a two-step imaging method. However, the ultimate performance of holographic imaging is mainly determined by the brightness of the electron beam used in the hologram-formation process. In our 350kV holography electron microscope (see Fig. 1), the decrease in the inherently high brightness of field-emitted electrons is minimized by superposing a magnetic lens in the gun, for a resulting value of 2 × 109 A/cm2 sr. This high brightness has lead to the following distinguished features. The minimum spacing (d) of carrier fringes is d = 0.09 Å, thus allowing a reconstructed image with a resolution, at least in principle, as high as 3d=0.3 Å. The precision in phase measurement can be as high as 2π/100, since the position of fringes can be known precisely from a high-contrast hologram formed under highly collimated illumination. Dynamic observation becomes possible because the current density is high.


2019 ◽  
Vol 3 (6) ◽  
pp. 707-711 ◽  
Author(s):  
Andrew Peterson ◽  
Adrian M. Owen

In recent years, rapid technological developments in the field of neuroimaging have provided several new methods for revealing thoughts, actions and intentions based solely on the pattern of activity that is observed in the brain. In specialized centres, these methods are now being employed routinely to assess residual cognition, detect consciousness and even communicate with some behaviorally non-responsive patients who clinically appear to be comatose or in a vegetative state. In this article, we consider some of the ethical issues raised by these developments and the profound implications they have for clinical care, diagnosis, prognosis and medical-legal decision-making after severe brain injury.


2011 ◽  
Vol 59 (S 01) ◽  
Author(s):  
S Ihlenburg ◽  
A Rüffer ◽  
T Radkow ◽  
A Purbojo ◽  
M Glöckler ◽  
...  

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