Comparative Histological Analysis of Caspian Thin-Toed Gecko (Reptilia, Squamata) and Persian sturgeon (Actinopterygii, Acipenseriformes) Skin

We carried out a comparative study on Caspian thin-toed gecko with Persian sturgeon. The skin plays a role in preventing damage to internal organs from mechanical stress and the harmful effects of sunlight, and is colored depending to the environment to protect against enemies. It also plays the role in the recognition and reproduction of members. The epidermis of Tenuidactylus caspius (Eichwald, 1831) resembles mammals and birds more than the epidermis of reptiles. The stratum corneum layer of the epidermis is the same thickness in the same body area of the Caspian thin-toed gecko representatives. T.c. insularis, which live by the seaside in horizontal position, have relatively few stratum corneum cells that cover the underside of the body, however, there are many air-filled cavities inside these cells. The stratum corneum underside of T.c. caspius, which are adapted to living in a vertical position, have a large number of cells, but they are flatter and have fewer air cavities. The stratum compactum layer of the dermis in the T.c. caspius, is denser and more compact than in the T.c. insularis. Acipenser persicus (Borodin, 1897) epidermis consist of outermost surface layer, middle layer and stratum germinativum. In sturgeon, the outer surface of skin is covered with a cuticle. Below it are mucous cells, taste buds and stratified flattened cells. The stratum compactum of Acipenser persicus is thick and covers the body like a shiel

Assessment of Invisible Areas and Military Objects in Mountainous Terrain

During war activities, the evaluation of invisible areas and military armors in mountainous terrain is very important for assessment of operational-tactical situation in battlefield. This information can be used for prevention of an enemy sudden attack. In given paper, the quantitative method of the assessment of invisible areas and military objects in mountainous terrain is developed and offered by using Unmanned Aerial Vehicle. The probabilities of detection of invisible area or enemy object by using 1 and n UAVs are calculated. Previously obtained data by ArcGIS software (GIS technology) have been used for calculations and evaluations the number of invisible areas and military objects. The analysis of the dependence of effectiveness of revealing and localization areas and military objects on UAV number has been carried out. It was established that for quantitative analysis of invisible areas it is more efficiently to use one UAV, but for detection of armored vehicles and military objects it is more efficiently to use several UAV. Our experiments in mountainous conditions had shown that at flight height 300 m and battle-front 2,5 km putting 3-5 UAVs is real. In this case, all of them perform operational mission and return to base

A solar power plant with a high performance solar cells and thin concentrators made of aluminumbacked epoxy coated polymers

The offered module of the solar cell includes light collected system on the basis of a cylindrical thin concentrator and the bar of silicon photocells with a radiator for air cooling. The concentrator is a light collecting system and is manufactured from epoxy with a depth of 5 mm coated from the inside by a polymeric film of depth 70 μm and of aluminium by depth 3 μm. Small depths of materials of the concentrator cause its low cost compared with the concentrators produced from glasses. The estimated cost of a concentrator with an area of 1 m2 is 10

Fog computing technology application in cyber-physical systems and analysis of cybersecurity problems

New requirements for modern technologies have become a driving force in the development of information technology. New distributed computing systems are required to handle a large data flow generated by the application of the Internet of Things and to ensure their efficient processing. Although cloud computing is an effective technology for processing and storing data generated in a networked environment, it has complications with the real time transmission of large amounts of data due to the low bandwidth of network. To speed up the data processing, fog computing systems have been widely used in recent years. Fog counting systems are one of the proposed solutions for working with IoT devices. Because it can meet the computing needs of multiple devices connected to the network. In these systems, the data is processed at computing nodes located near the data generating devices, which reduces the bandwidth complications of the network channel. In this regard, this article considers the application of fog computing technology in cyber-physical systems. It analyzes the fog technology architecture and its advantages over cloud computing. Cyber security problems arising when using fog technology in cyber-physical systems are analyzed and available protection methods partially solving them are highlighted

METHODS OF IDENTIFYING QUARANTINE PESTS OF PLANTS

The decision of the President of the Republic of Uzbekistan “On the establishment of the Plant Quarantine and Protection Agency of the Republic of Uzbekistan”, the “Roadmap” for the development of the field of plant quarantine and protection in 2021-2024, the organizational structure of the plant quarantine and protection agency and its central apparatus, Plant Quarantine of the Republic of Karakalpakstan and protection agency structure, model structure of plant quarantine and protection departments of regions Tashkent city plant quarantine and protection department structure, based on the model structure of district (city) plant quarantine and protection departments named after Sharof Rashidov Samarkand State University, Institute of Agrobiotechnologies and Food Safety, Department of Agrochemistry and Plant Protection will provide explanations on identification of plant quarantine pests during training of 2nd and 3rd level student

Többlépéses tömegmaradék analízis alkalmazása kopolimerek tandem tömegspektrumainak elemzésére: Application of Multistep Mass-Remainder Analysis for the evaluation copolymer tandem mass spectra

Polyalkylene oxide polyether polyols are widely used in polymer industry as high-performance coating, wetting, crosslinking agents. Therefore, their characterization plays a very important role in quality management. We applied the recently invented three-step MARA method in order to evaluate complex tandem mass spectra of polyether polyols. The obtained peak series were distinguished and further structural information was gained on multi-arm copolymers. M-MARA (Multistep Mass-remainder analysis) yields an ultra-simplified graphical representation of the MS/MS spectra and sorts the product ions based on their double bond equivalent (DBE) values, where six-arm, three-arm and linear diol polyether polyols demonstrates 0-4, 0-2 and 0-1 DBE values, respectively.  Kivonat A poliéter poliolokat az iparban széles körben alkalmazzák, mint bevonatok, nedvesítő vagy térhálósító szerek. Ezért, ezek karakterizálása, kiemelt jelentőségű minőség-ellenőrzés szempontjából. Munkánk során a több lépéses Tömegmaradék Analízist alkalmaztuk poliéterek komplex tandem tömegspektrumainak értékelésére. Az M-MARA (Több lépéses Tömegmaradék Analízis) módszerrel a detektált csúcs sorozatokat megkülönböztettük és további szerkezeti információkat kaptunk. A mérésekből előállított ábrák egyszerű reprezentációi a tandem tömegspektrumoknak, melyen a termék ionok a kettőskötések száma alapján rendeződnek. A hatkarú, háromkarú és lineáris polimerek 0-4, 0-2, 0-1 DBE értékű sorozatokkal jellemezhetők. &nbsp

Chaos synchronization in the multi-feedback Ikeda model

We investigate synchronization between two unidirectionally coupled chaotic multi-feedback Ikeda systems and find both the existence and stability conditions for anticipating, lag, and complete synchronizations.Generalization of the approach to a wide class of nonlinear systems is also presented.Comment: 5 pages. submitte