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Full-Text Articles in Engineering

Theoretical Foundations For Determining Kinematic Parameters Of A Jet Unit, Kudrat Raximov, A.R. Babaev, Dilbar Abduraimova Dec 2019

Theoretical Foundations For Determining Kinematic Parameters Of A Jet Unit, Kudrat Raximov, A.R. Babaev, Dilbar Abduraimova

Journal of Tashkent Institute of Railway Engineers

This article discusses the theoretical basis of the dependence of the kinematic parameters, in particular the average speed of flow rate in the suction pipeline of the jet apparatus intended for cleaning water bodies from silting, from changes in the pressure in the mixing chamber. In the problem is considered a single-phase flow, that is, the density of the working and the suction fluid are the same.


Gis-Based Approach For Sinkhole Occurrence Risk Mitigation In Urban Areas For Historic Wieliczka Salt Mine, Agnieszka Malinowska, Ryszard Hejmanowski Sep 2019

Gis-Based Approach For Sinkhole Occurrence Risk Mitigation In Urban Areas For Historic Wieliczka Salt Mine, Agnieszka Malinowska, Ryszard Hejmanowski

Gorniy vestnik Uzbekistana

The article presents the results of the definition of a new methodology for assessing the risk of flooding a shallow slotted mine, which was carried out on the square above the Wieliczka Salt Mine, which is a world heritage. Vertical stresses are estimated on the basis of the theoretical state of rock mass deformation in the area of test chambers. In addition, the risk for chambers indicated in the zone was calculated based on the theory of arctic pressure. The final stage of the study was spatial analysis, which led to the identification of chambers, potentially subject to the influence …


The Principles Of Increasing The Sensitivity Of Transistor Structures To External Influences, Davron R. Djuraev, Abdulaziz V. Karimov, Dilbara M. Yodgorova, Akmal A. Turaev Jun 2019

The Principles Of Increasing The Sensitivity Of Transistor Structures To External Influences, Davron R. Djuraev, Abdulaziz V. Karimov, Dilbara M. Yodgorova, Akmal A. Turaev

Euroasian Journal of Semiconductors Science and Engineering

This article discusses a multifunctional sensor based on a field-effect transistor with a p-n-junction. The sensor allows to register temperature, light intensity, pressure with high level of sensitivity. At the same time, ensuring the sensitivity of the structure to external influences is practically solved due to constructive changes. Due to constructive solutions, the proposed sensor based on a field-effect transistor greatly exceeds the similar diode structures in sensitivity.


The Principles Of Increasing The Sensitivity Of Transistor Structures To External Influences, Davron R. Djuraev, Abdulaziz V. Karimov, Dilbara M. Yodgorova, Akmal A. Turaev Jun 2019

The Principles Of Increasing The Sensitivity Of Transistor Structures To External Influences, Davron R. Djuraev, Abdulaziz V. Karimov, Dilbara M. Yodgorova, Akmal A. Turaev

Euroasian Journal of Semiconductors Science and Engineering

This article discusses a multifunctional sensor based on a field-effect transistor with a p-n-junction. The sensor allows to register temperature, light intensity, pressure with high level of sensitivity. At the same time, ensuring the sensitivity of the structure to external influences is practically solved due to constructive changes. Due to constructive solutions, the proposed sensor based on a field-effect transistor greatly exceeds the similar diode structures in sensitivity.