The development of the system for arc nordugrid based grid-computing organization using virtual environments of the docker platform

The study of modern frameworks and means of using virtualization in a grid environment confirmed the relevance of the task of automated configuration of the environment for performing tasks in a grid environment. Setting up a task execution environment using virtualization requires the implementation of appropriate algorithms for scheduling tasks and distributed storage of images of virtual environments in a grid environment. Existing cloud infrastructure solutions to optimize the process of deploying virtual machines on computing resources do not have integration with the Arc Nordugrid middleware, which is widely used in grid infrastructures. An urgent task is to develop tools for scheduling tasks and placing images of virtual machines on the resources of the grid environment, taking into account the use of virtualization tools. The results of the implementation of services of the framework are presented that allow to design and perform computational tasks in a grid environment based on ARC Nordugrid using the virtual environment of the Docker platform. The presented results of the implementation of services for scheduling tasks in a grid environment using a virtual computing environment are based on the use of a scheduling algorithm based on the dynamic programming method. Evaluations of the effectiveness of the solutions developed on the basis of a complex of simulation models showed that the use of the proposed algorithm for scheduling and replicating virtual images in a grid environment can reduce the execution time of a computational task by 88 %. Such estimates need further refinement; it is predicted that planning efficiency will increase over time with an increase in the number of running tasks due to the redistribution of the storage of virtual images

Visual Creativity of Protests in Romania (2016-2019)

After the pictorial turn, it is not surprising that political messages are more and more often presented in a visual form. Today, the battle between great ideas is not only fought via texts, but also through real and virtual images, or, through imagetexts. This paper tackles the image politics of the Romanian post-2016 anti-government popular resistance through some typical cases of imagetext: hashtags, symbols, video mapping, posters and some cases of visible space-occupation. These examples can present the anonymous (in some cases professional) artistic creativity, which helps the formation of social solidarity and crystallizes the message of the resistance.

Virtualization In The Social Sphere

This article discusses the paradigm of the new direction of virtualism. It provides information about virtual images and virtual reality in the information society. The etymology of the concept of virtualism is also substantiated.

Characters’ Pilgrimage from the Canon to Fanfiction: A Gestalt Approach

Most academic circles treat fanfiction as “paraliterature” (Krauss, 1980) created by fans of a certain literary work. Fanfiction (also abbreviated to fan fic, fanfic, or fic) presents a new field of analysis not only for literature, but also for linguistic studies. The current paper aims at combining the research practices of both of them in order to disclose the literary and lingual essence of fanfics within J. K. Rowling’s Harry Potter universe. For this purpose, we have made an attempt to apply the cognitive theory of Gestalt (introduced into the research world by the well-known psychologist Max Wertheimer) to the lingual analysis of fanfiction. We shall argue that in the three fanfics studied, the virtual images of Harry Potter, Hermione and Ron are preserved on the level of their individual speech Gestalts. We shall also argue that the fanfic author’s personal sympathies may change at least one of the characters’ profiles within a fanfic, while leaving the rest of them mostly unchanged so as to serve as an easily recognized background for the favorite personage. In other words, the author’s angle of vision structures not only a fanfic’s narrative, but it may also re-build the artistic and speech image(s) of one or more characters, though preserving the others’ images as given in the canon text.

Cultural Heritage Restoration of a Hemispherical Vault by 3D Modelling and Projection of Video Images with Unknown Parameters and from Unknown Locations

Reverse engineering applied to architectural restoration for the reconstruction of structural surfaces depends on metric precision. Sometimes there are elements on these surfaces whose value is even higher than the building itself. This is the case for many churches whose ceilings have pictorial works of art. Reconstruction requires the existence of some identifiable remainder and/or a surface geometry that enables mathematical development. In our case, the vault has an irregular hemispherical geometry (without possible mathematical development), and there are no significant remains of the painting (which was destroyed by a fire). Through the 3D modelling of the irregular vault and two historic frames with a camera of unknown geometry, an inverse methodology is designed to project the original painting without metric deformations. For this, a new methodology to locate the camera positions is developed. After, a 3D virtual mathematical model of the complete image on the vault is calculated, and from it, partial 3D virtual images are automatically calculated depending on the variable unknown positions of the video cannons (distributed along the upper corridor of the apse) that will project them (visually forming a perfect complete 3D image).

Surgical Repositioning of an Inverted Developing Incisor Assisted by 3D Technology

Permanent central incisor impaction is very rare, and causes of impaction include adjacent supernumerary teeth, odontoma, and trauma. Surgical repositioning is a treatment option for teeth with ectopic eruption pathways. In this case report, an inverted developing maxillary central incisor was surgically repositioned at the initial stage of root development. Three dimensional (3D) virtual images were acquired using computed tomography, and a replica was produced by LCD-based masked stereolithography 3D printing. A resin for 3D printing was approved as a medical device and used as a 3D printing replica. Further, 3D technology has been found to be useful for successful tooth repositioning surgery.

THE APOLOGY OF THE WHOLE

At the level of the whole organism, an idea of the complexity of living things is formed as a combination of levels of organization (layers) of biological and virtual reality, which develops as a space for visualization (digitization) of living objects. New digital formats of living objects, coupled with the naturalistic ethics of obtaining them, create a trend towards a complete transition of biology to a quantitatively new level of obtaining biological information – information about the state of living biological objects. The development of digital biology contributes to an increasingly large-scale transition to the creation and analysis of virtual images of living biological objects, and at the same time "removes" the biologist from the actual object of research: a biologist can work with a virtual image and not destroy his research object. Digital naturalism appears, and, consequently, a digital "experiment" must also be expected, which will undoubtedly continue the eternal confrontation between naturalists and naturalists or vitalists with mechanists in the new techno environment.

An integrated augmented reality surgical navigation platform using multi-modality imaging for guidance

An integrated augmented reality (AR) surgical navigation system that potentially improves intra-operative visualization of concealed anatomical structures. Integration of real-time tracking technology with a laser pico-projector allows the surgical surface to be augmented by projecting virtual images of lesions and critical structures created by multimodality imaging. We aim to quantitatively and qualitatively evaluate the performance of a prototype interactive AR surgical navigation system through a series of pre-clinical studies. Four pre-clinical animal studies using xenograft mouse models were conducted to investigate system performance. A combination of CT, PET, SPECT, and MRI images were used to augment the mouse body during image-guided procedures to assess feasibility. A phantom with machined features was employed to quantitatively estimate the system accuracy. All the image-guided procedures were successfully performed. The tracked pico-projector correctly and reliably depicted virtual images on the animal body, highlighting the location of tumour and anatomical structures. The phantom study demonstrates the system was accurate to 0.55 ± 0.33mm. This paper presents a prototype real-time tracking AR surgical navigation system that improves visualization of underlying critical structures by overlaying virtual images onto the surgical site. This proof-of-concept pre-clinical study demonstrated both the clinical applicability and high precision of the system which was noted to be accurate to <1mm.

Simulating virtual images in optical trap displays

Optical trap displays (OTD) are an emerging display technology with the ability to create full-color images in air. Like all volumetric displays, OTDs lack the ability to show virtual images. However, in this paper we show that it is possible to instead simulate virtual images by employing a time-varying perspective projection backdrop.