DETERMINING THE DYNAMIC INDICATORS OF THE PNEUMATIC SPRING FOR HIGH-SPEED ROLLING STOCK IN THE ZONE OF A RAIL JOINT ALONG A RAILROAD TRACK.

Authors: Kovalchuk, Vitalii¹, kovalchuk.diit@gmail.com, Kuzyshyn, Andrii², Royko, Yuriy³, Hermaniuk, Yuliia⁴, Tereshchak, Yuriy⁵, Pulariia, Andrii⁶

Source: Eastern-European Journal of Enterprise Technologies; 2024, Vol. 132 Issue 7, p65-74, 10p

ESTABLISHING PATTERNS OF CHANGE IN THE COEFFICIENTS OF REFLECTION, TRANSMISSION, AND DISSIPATION OF WAVE ENERGY DEPENDING ON PARAMETERS OF A PERMEABLE VERTICAL WALL.

Authors: Onyshchenko, Artur¹, Kovalchuk, Vitalii², kovalchuk.diit@gmail.com, Voskoboinick, Volodymyr³, Voskobiinyk, Andrii⁴, Aksonov, Sergii⁵, Trudenko, Denys⁶, Hrevtsov, Serhii⁷

Source: Eastern-European Journal of Enterprise Technologies; 2024, Vol. 130 Issue 5, p45-56, 12p

DETERMINING THE EFFECT OF ADDITIONAL TANK VOLUME AND AIR PRESSURE IN THE SPRING ON THE DYNAMIC INDICATORS OF A PNEUMATIC SYSTEM OF SPRING SUSPENSION IN HIGH-SPEED RAILROAD ROLLING STOCK.

Authors: Kuzyshyn, Andrii¹, Kovalchuk, Vitalii², kovalchuk.diit@gmail.com, Sobolevska, Yuliya³, Royko, Yuriy⁴, Kravets, Ivan⁵

Source: Eastern-European Journal of Enterprise Technologies; 2024, Vol. 129 Issue 7, p47-62, 16p

Analyzing the Communication Environment of Higher Education Institutions

Authors: Kovalchuk Vitalii M.

Source: Bìznes Inform, Vol 11, Iss 538, Pp 284-292 (2022)

Subject Terms: analysis, communication environment, higher education institutions, indicators, Business, HF5001-6182

File Description: electronic resource

Relation: https://www.business-inform.net/export_pdf/business-inform-2022-11_0-pages-284_292.pdf; https://doaj.org/toc/2222-4459; https://doaj.org/toc/2311-116X

Access URL: https://doaj.org/article/95745fd2670b4c9d94ce496ce55743f5

DEVISING A METHOD FOR IMPROVING PEDESTRIAN TRAFFIC SAFETY WHEN CROSSING RAILROAD TRACKS BY IMPLEMENTING AN INFORMATION SYSTEM WITH A FIXED WARNING TIME.

Authors: Kovalchuk, Vitalii¹, kovalchuk.diit@gmail.com, Lesiv, Yulia²

Source: Eastern-European Journal of Enterprise Technologies; 2024, Vol. 128 Issue 3, p50-59, 10p

Comparison of the effects and efficiency of vertical and side tamping methods for ballasted railway tracks

Authors: Przybyłowicz, Michał, Sysyn, Mykola, Gerber, Ulf, Kovalchuk, Vitalii, Fischer, Szabolcs

Source: In Construction and Building Materials 3 January 2022 314 Part B

DEVISING A PROCEDURE FOR INTEGRATED MODELING OF RIVERBED SHAPE IN THE AREA OF BRIDGE CROSSING IN ORDER TO AVOID DANGEROUS WASHING EROSION.

Authors: Onyshchenko, Artur¹, Ostroverkh, Вorys², Potapenko, Liudmyla³, Kovalchuk, Vitalii⁴, kovalchuk.diit@gmail.com, Zdolnyk, Oleksandr⁵, Pentsak, Andriy⁶

Source: Eastern-European Journal of Enterprise Technologies; 2024, Vol. 127 Issue 1, p23-32, 10p

DETERMINING THE ENERGY OF IMPACT OF A RAILROAD ROLLING STOCK WHEELSET WHEN DERAILING OVER REINFORCED CONCRETE SLEEPERS USING IMPACT TRACE PARAMETERS.

Authors: Bolzhelarskyi, Yaroslav¹, Luchko, Josyp², Bal, Olena¹, Kovalchuk, Vitalii³, kovalchuk.diit@gmail.com

Source: Eastern-European Journal of Enterprise Technologies; 2023, Vol. 126 Issue 7, p39-46, 8p

Studying the diagrams 'force - deformation' of a pneumatic spring of a modern rolling stock at increased speeds

Authors: Kuzyshyn Andrii, Kovalchuk Vitalii, Sobolevska Yulia

Source: MATEC Web of Conferences, Vol 390, p 04006 (2024)

Subject Terms: Engineering (General). Civil engineering (General), TA1-2040

File Description: electronic resource

Relation: https://www.matec-conferences.org/articles/matecconf/pdf/2024/02/matecconf_eot24_04006.pdf; https://doaj.org/toc/2261-236X

Access URL: https://doaj.org/article/70ff5b91ad5a47b2a85faa1e0383abd2

Methodical Approach to Assessing the Demand for Higher Education in Ukraine

Authors: Kryvytska Olha R., Kovalenko Lyudmila B., Kovalchuk Vitalii M.

Source: Problemi Ekonomiki, Vol 4, Iss 50, Pp 42-49 (2021)

Subject Terms: higher education, demand, methodical approach, assessment, strategy, higher education institution, Finance, HG1-9999, Economics as a science, HB71-74

File Description: electronic resource

Relation: https://www.problecon.com/export_pdf/problems-of-economy-2021-4_0-pages-42_49.pdf; https://doaj.org/toc/2222-0712; https://doaj.org/toc/2311-1186

Access URL: https://doaj.org/article/5a27cbdc30ed44e4abce26cf9612ba26

EFFECTS OF MOVEMENT DIRECTION THROUGH A SWITCH ON ACCELERATIONS AND NATURAL FREQUENCIES OF A PNEUMATIC SUSPENSION OF HIGH-SPEED ROLLING STOCK.

Authors: Kuzyshyn, Andrii¹ andrii.y.kuzyshyn@lpnu.ua, Kovalchuk, Vitalii¹, Royko, Yuriy²

Source: Komunikácie. 2025, Vol. 27 Issue 1, pB53-B64. 12p.

Subject Terms: *FREQUENCIES of oscillating systems, *HIGH speed trains, *WIND turbines, *OSCILLATIONS, *ROLLING stock

ASSESSING THE STRESSES AND MAGNITUDE OF PLASTIC HINGE IN A TUNNEL CONDUIT MADE OF PRECAST METAL CORRUGATED STRUCTURES TAKING INTO ACCOUNT THE SOIL BACKFILL PARAMETERS.

Authors: Kovalchuk, Vitalii¹, kovalchuk.diit@gmail.com, Karnakov, Ihor², Onyshchenko, Artur³, Petrenko, Oleksiy⁴, Boikiv, Roman⁵

Source: Eastern-European Journal of Enterprise Technologies; 2023, Vol. 124 Issue 7, p43-53, 11p

DETERMINING THE RESIDUAL SERVICE LIFE OF POLYMER-MODIFIED ASPHALT CONCRETE PAVEMENT ON ROAD BRIDGES.

Authors: Onyshchenko, Artur¹, Kovalchuk, Vitalii², kovalchuk.diit@gmail.com, Zagorodniy, Olexiy¹, Moroz, Vadym¹

Source: Eastern-European Journal of Enterprise Technologies; 2023, Vol. 123 Issue 1, p41-51, 11p

Method of experimental determination of the effective area of a pneumatic spring of high-speed rolling stock.

Authors: Kuzyshyn, Andrii¹ andrii.y.kuzyshyn@lpnu.ua, Kovalchuk, Vitalii¹ vitalii.v.kovalchuk@lpnu.ua, Kravets, Ivan¹ ivan.b.kravets@lpnu.ua, Korendiy, Vitaliy² vitalii.m.korendii@lpnu.ua, Royko, Yuriy³ yurii.y.roiko@lpnu.ua

Source: Vibroengineering Procedia. Sep2024, Vol. 55, p254-260. 7p.

Subject Terms: *PRESSURE gages, *QUADRATIC equations, *VALUE investing (Finance), *AUTOMATED teller machines, *DEFORMATIONS (Mechanics), *ROLLING stock

Microcrack under internal pressure at dislocation defect

Authors: Stashchuk, Mykola, Hembara, Nataliya, Kovalchuk, Vitalii

Source: In Procedia Structural Integrity 2019 16:252-259

Multifractal Analysis of the Common Crossing Track-Side Measurements

Authors: Sysyn Mykola, Izvolt Libor, Nabochenko Olga, Kovalchuk Vitalii, Sestakova Janka, Pentsak Andriy

Source: Civil and Environmental Engineering, Vol 15, Iss 2, Pp 101-114 (2019)

Subject Terms: railway common crossing, track-side measurements, condition indicators, multifractal analysis, lasso regularisation, Engineering (General). Civil engineering (General), TA1-2040

File Description: electronic resource

Relation: http://www.degruyter.com/view/j/cee.2019.15.issue-2/cee-2019-0014/cee-2019-0014.xml?format=INT; https://doaj.org/toc/2199-6512

Access URL: https://doaj.org/article/2d0465b93f6d4f89afe022d78b6c2462

DETERMINING PATTERNS IN THE INFLUENCE OF THE GEOMETRICAL PARAMETERS OF THE CONNECTING PIPELINE ON THE DYNAMIC PARAMETERS OF THE PNEUMATIC SPRING OF RAILROAD ROLLING STOCK.

Authors: Kuzyshyn, Andrii¹, kovalchuk.diit@gmail.com, Kovalchuk, Vitalii², Hilevych, Volodymyr³

Source: Eastern-European Journal of Enterprise Technologies; 2023, Vol. 121 Issue 7, p57-65, 9p

ASSESSMENT OF THE STRESSED-STRAINED STATE OF A REINFORCED TRANSPORT PIPE UNDER THE COMBINED EFFECT OF AMBIENT TEMPERATURE AND STATIC LOADS.

Authors: Kovalchuk, Vitalii¹, kovalchuk.diit@gmail.com, Rybak, Roman², Hnativ, Yuriy³, Tkachenko, Valentyna⁴, Onyshchenko, Artur⁵, Kravets, Ivan⁶, Hermaniuk, Yuliia³, Babyak, Mykola⁶, Hembara, Nataliya⁷, Velhan, Ihor⁸

Source: Eastern-European Journal of Enterprise Technologies; 2022, Vol. 120 Issue 7, p6-12, 7p

DETERMINING PATTERNS OF THE DEFORMED STATE OF THE TRANSPORT CONCRETE PIPE REINFORCED WITH A METAL CLAMP UNDER THE ACTION OF STATIC LOAD.

Authors: Kovalchuk, Vitalii¹, kovalchuk.diit@gmail.com, Rybak, Roman², Parneta, Bogdan³, Onyshchenko, Artur⁴, Kvasnytsya, Roksolyana⁵

Source: Eastern-European Journal of Enterprise Technologies; 2022, Vol. 119 Issue 7, p54-60, 7p

Experimental Analysis of Rail Contact Fatigue Damage on Frog Rail of Fixed Common Crossing 1:12

Authors: Sysyn, Mykola, Kluge, Franziska, Gruen, Dmitri, Kovalchuk, Vitalii, Nabochenko, Olga

Source: Journal of failure analysis & prevention. 19(4):1077-1092

Availability: http://explore.bl.uk/primo_library/libweb/action/display.do?tabs=detailsTab&gathStatTab=true&ct=display&fn=search&doc=ETOCvdc_100127895439.0x000001&indx=1&recIds=ETOCvdc_100127895439.0x000001