ÌÒÌ journal
CONTENTS / ÑÚÄÚÐÆÀÍÈÅ
COMPARATIVE TESTING OF CAR PERFORMANCE USING CNG-HYDROGEN MIXTURES
ÑÐÀÂÍÈÒÅËÍÎ ÏÚÒÍÎ ÈÇÑËÅÄÂÀÍÅ ÏÎÊÀÇÀÒÅËÈÒÅ ÍÀ ËÅÊ ÀÂÒÎÌÎÁÈË ÏÐÈ ÈÇÏÎËÇÂÀÍÅ ÍÀ ÌÅÒÀÍÎÂÎÄÎÐÎÄÍÈ ÑÌÅÑÈ
Ñòàíêîâ Å., Ê. Áúðçåâ ................................................................. 4
THE OPPORTUNITIES FOR IMPROVING THE EFFICIENCY OF THE SPARK IGNITION ENGINES
ÂÚÇÌÎÆÍÎÑÒÈÒÅ ÇÀ ÏÎÂÈØÀÂÀÍÅ ÅÔÅÊÒÈÂÍÎÑÒÒÀ ÍÀ ÄÂÈÃÀÒÅËÈÒÅ Ñ ÏÐÈÍÓÄÈÒÅËÍÎ ÂÚÇÏËÀÌÅÍßÂÀÍÅ
Õàäæèåâ Ê. ............................................................................. 7
SPECIFIC POWER OF AGRICULTURAL TRACTORS – SIGNIFICANCE FOR PRACTICE, STATE, PROGNOSIS
ÅÍÅÐÃÎÍÀÑÈÒÅÍÎÑÒ ÍÀ ÇÅÌÅÄÅËÑÊÈÒÅ ÒÐÀÊÒÎÐÈ – ÇÍÀ×ÅÍÈÅ ÇÀ ÏÐÀÊÒÈÊÀÒÀ, ÑÚÑÒÎßÍÈÅ, ÏÐÎÃÍÎÇÈ
Áîæêîâ Ñ., Ð. Èâàíîâ .................................................................. 10
EMISSION CHARACTERISTICS OF TROUT OIL BIODISEL-DIESEL FUEL BLENDS IN AN IDI COMPRESSION IGNITION ENGINE
ÈÇÑËÅÄÂÀÍÅ ÅÌÈÑÈÈÒÅ ÍÀ ÄÈÇÅËÎÂ ÄÂÈÃÀÒÅË Ñ ÐÀÇÄÅËÅÍÀ ÃÎÐÈÂÍÀ ÊÀÌÅÐÀ ÏÐÈ ÐÀÁÎÒÀ ÑÚÑ ÑÌÅÑ ÎÒ ÐÈÁÅÍÎ ÁÈÎÃÎÐÈÂÎ È ÄÈÇÅË
Karaaslan S., Ê. Kadirov, N. Yucel .............................................. 13
PISTON EFFECT ON FIRE-INDUCED FLOW AND HUMAN CONFORT IN AN UNDERGROUND TRANSPORTATION SYSTEM STATION MODEL
ÅÔÅÊÒ ÎÒ ÂÈÇÏËÀÌÅÍßÂÀÍÅ ÍÀ ÏÎÒÎÊ È ×ÎÂÅØÊÎÒÎ ÇÄÐÀÂÅ ×ÐÅÇ ÌÎÄÅËÈÐÀÍÅ ÍÀ ÏÎÄÇÅÌÍÀ ÒÐÀÍÑÏÎÐÒÍÀ ÑÈÑÒÅÌÀ
Karaaslan S. N. Dinler, N. Yucel ................................................................... 17
ANALYSIS OF CAR BODY BEHAVIOUR IN CONDITIONS OF LARGE DEFORMATIONS
ÀÍÀËÈÇ ÐÀÁÎÒÛ ÀÂÒÎÌÎÁÈËÜÍÎÉ ÊÀÐÎÑÅÐÈÈ Â ÓÑËÎÂÈßÕ ÁÎËÜØÈÕ ÄÅÔÎÐÌÀÖÈÉ
Milovanovic M., S. Jovanovic, M. Popovic .............................................. 21
ALGORITHM FOR SIGNAL PROCESSING FROM AN ACCELEROMETER MEASURING DYNAMICS OF INTERACTION VEHICLE-RAILWAY TRACK
ÀËÃÎÐÈÒÚÌ ÇÀ ÎÁÐÀÁÎÒÊÀ ÍÀ ÑÈÃÍÀËÈ ÎÒ ÀÊÑÅËÅÐÎÌÅÒÚÐ, ÈÇÌÅÐÂÀÙ ÄÈÍÀÌÈÊÀÒÀ ÍÀ ÂÇÀÈÌÎÄÅÉÑÒÂÈÅÒÎ ÂÎÇÈËÎ-ÏÚÒ
Éîí÷åâ Å., Ð. Ìèëåòèåâ, Ð. Àðíàóäîâ .................................................... 25
HELICOPTER MI-17 SYSTEM RELIABILITY RESEARCH. USING THE FREQUENCY OF TURBO-CONPRESSOR AS A FUNCTIONAL PARAMETER FOR THE ENGINE TV3-117 TECHNICAL DIAGNOSTICS.
ÈÇÑËÅÄÂÀÍÅ ÍÀ ÍÀÄÅÆÄÍÎÑÒÒÀ ÍÀ ÑÈÑÒÅÌÈÒÅ ÍÀ ÂÅÐÒÎËÅÒ ÌÈ-17. ÈÇÏÎËÇÂÀÍÅ ÍÀ ×ÅÑÒÎÒÀÒÀ ÍÀ ÂÚÐÒÅÍÅ ÍÀ ÒÓÐÁÎÊÎÌÏÐÅÑÎÐÀ ÊÀÒÎ ÔÓÍÊÖÈÎÍÀËÅÍ ÏÀÐÀÌÅÒÚÐ ÇÀ ÒÅÕÍÈ×ÅÑÊÀ ÄÈÀÃÍÎÑÒÈÊÀ ÍÀ ÄÂÈÃÀÒÅË ÒÂ3-117.
Çàãîðñêè Í., Ä. Ñåéçèíñêè, Ñâ. Àñåíîâ ........................................ 28
ANALYSIS OF EXISTING METHODS TO IMPROVE GEAR PUMPS PRODUCTIVITY OF THE GAS TURBINE ENGINES` OIL SYSTEMS
ÀÍÀËÈÇ ÍÀ ÑÚÙÅÑÒÂÓÂÀÙÈ ÌÅÒÎÄÈ ÇÀ ÏÎÂÈØÀÂÀÍÅ ÏÐÎÈÇÂÎÄÈÒÅËÍÎÑÒÒÀ ÍÀ ÇÚÁÍÈÒÅ ÏÎÌÏÈ ÍÀ ÌÀÑËÅÍÈÒÅ ÑÈÑÒÅÌÈ ÍÀ ÀÂÈÀÖÈÎÍÍÈ ÃÒÄ
Àñåíîâ Ñâ., Í. Çàãîðñêè, Ì. Àòàíàñîâ, Í. Îãíÿíîâà ...................................... 34
THE BUSHES WEAR OF CONVEYOR CHAINS
ÈÇÍÀØÈÂÀÍÈÅ ØÀÐÍÈÐÎÂ ÒÐÀÍÑÏÎÐÒÍÛÕ ÖÅÏÅÉ
Penkov I., Ò. Pappel ...................................................................... 37
POWDER COMPOSITE MATERIALS WITH CARBON NANOSTRUCTURAL FILERS FOR USE IN MACHINE FRICTION JOINTS
ÏÎÐÎØÊÎÂÛÅ ÊÎÌÏÎÇÈÒÍÛÅ ÌÀÒÅÐÈÀËÛ Ñ ÊÀÐÁÎÍÎÂÎÉ ÍÀÍÎÑÒÐÓÊÒÓÐÎÉ ÄËß ÔÐÈÊÖÈÎÍÍÛÕ ÌÓÔÒ ÑÖÅÏËÅÍÈß
Kovtun V., V. Pasovets, M. Mihovski, A. Alexiev, Yu. Pleskachevsky ............ 40
AIR POLLUTIONS AND POSSIBILITIES FOR REDUCTION THE PART FROM THE ROAD TRANSPORT
ÇÀÌÚÐÑßÂÀÍÅÒÎ ÍÀ ÂÚÇÄÓÕÀ È ÂÚÇÌÎÆÍÎÑÒÈ ÇÀ ÍÀÌÀËßÂÀÍÅ ÄÅËÀ ÎÒ ÀÂÒÎÌÎÁÈËÍÈß ÒÐÀÍÑÏÎÐÒ
Evtimov Iv., R. Ivanov ......................................................................... 44
TIMETABLE ENGINEERING IN RAILWAY TRANSPORT IN CZECH REPUBLIC
ÎÐÃÀÍÈÇÀÖÈß ÐÀÑÑÏÈÑÀÍÈß Â ÆÅËÅÇÍÎÄÎÐÎÆÍÎÌ ÒÐÀÍÑÏÎÐÒÅ ×ÅÕÑÊÎÉ ÐÅÑÏÓÁËÈÊÈ
Vit J., K. Baudys, J. Pospisil, Z. Michl ...................................................... 48
USE OF MODERN TECHNOLOGIES IN THE AUTOMATION OF RESEARCH IN THE UNIVERSITY OF RUSE. MODELING OF HYBRID SYSTEMS
ÈÇÏÎËÇÂÀÍÅ ÍÀ ÑÚÂÐÅÌÅÍÍÈ ÒÅÕÍÎËÎÃÈÈ ÏÐÈ ÀÂÒÎÌÀÒÈÇÀÖÈßÒÀ
ÍÀ ÍÀÓ×ÍÈÒÅ ÈÇÑËÅÄÂÀÍÈß Â ÐÓ „À. ÊÚÍ×Å”. ÌÎÄÅËÈÐÀÍÅ ÍÀ ÕÈÁÐÈÄÍÈ ÑÈÑÒÅÌÈ
Êðúñòåâ Ã., Öâ. Ãåîðãèåâ .................................................................... 51
AVIATION SAFETY MANAGEMENT SYSTEM: NEW TYPE OF ARCHITECTURE AND IDEOLOGY FOR THE RESOURCE MANAGEMENT IN THE AVIATION ACTIVITIES
ÑÈÑÒÅÌÀ ÇÀ ÓÏÐÀÂËÅÍÈÅ ÍÀ ÀÂÈÀÖÈÎÍÍÀÒÀ ÁÅÇÎÏÀÑÍÎÑÒ: ÍÎÂ ÒÈÏ ÀÐÕÈÒÅÊÒÓÐÀ È ÈÄÅÎËÎÃÈß ÇÀ ÓÏÐÀÂËÅÍÈÅ ÍÀ ÐÅÑÓÐÑÈÒÅ Â ÀÂÈÀÖÈÎÍÍÀÒÀ ÄÅÉÍÎÑÒ
Çàãîðñêè Í., Ä. Ñåéçèíñêè, Ñâ. Àñåíîâ Ñâ. .......................................... 54
FACTORS INFLUENCING ON SAFETY IN RAILWAY TRANSPORT
ÔÀÊÒÎÐÈ, ÂËÈßÅÙÈ ÂÚÐÕÓ ÁÅÇÎÏÀÑÍÎÑÒÒÀ  ÆÅËÅÇÎÏÚÒÍÈß ÒÐÀÍÑÏÎÐÒ
Íèêîëîâ, Âàñêî Ð. ................................................................... 58
ASPHALT MIXTURES WITH STEEL PLANT SLAG CRUSHER – THE BEHAVIOR TOWARDS WATER
ÀÑÔÀËÀÒÎÂÀß ÑÌÅÑÜ Ñ ÎÑÍÎÂÀÍÈÅÌ ÑÒÀËÜÍÎÉ ØËÀÊ È ÐÅÆÈÌ ÐÀÁÎÒÛ ÏÐÈ ÎÂËÀÆÍÅÍÈÈ
Galusca N., Gh. Gugiuman ....................................................................... 61
SOLVING THE ASSIGNMENT PROBLEM USING MS EXCEL SOLVER
ÐÅØÀÂÀÍÅ ÍÀ ÇÀÄÀ×À ÇÀ ÍÀÇÍÀ×ÅÍÈßÒÀ Ñ MS EXCEL SOLVER
Dimitrov S. ......................................................................................... 65