ISBN 978- 954-91147-3-7
Proceedings of the
International Conference
RESEARCH PEOPLE AND ACTUAL TASKS ON MULTIDISCIPLINARY SCIENCES
First Conference
Bulgarian National Society of Agricultural Engineers
“Engineering and Research for Agriculture”
Volume 2
LOZENEC, BULGARIA
6 – 8 June, 2007
Proceedings of the
International Conference
RESEARCH PEOPLE AND ACTUAL TASKS ON MULTIDISCIPLINARY SCIENCES
First Conference
Bulgarian National Society of Agricultural Engineers
“Engineering and Research for Agriculture”
with the support of
Union of Scientists- Rousse, Bulgaria
“Angel Kunchev” University of Rousse, Bulgaria
National Institute of Research-Development for Machines and Installations Designed to Agriculture and Food Industry, Bucharest, Romania
University of Agricultural Sciences and Veterinary Medicine of Banat Timişoara, Faculty of Zootechny and Biotechnology, Romania
Society “ECOLOGICA”, Belgrade, Serbia
Volume 2
Technical sciences
Processing & Post Harvest Technology and Logistics,
Power and machinery
LOZENEC, BULGARIA
6 – 8 June, 2007
Organizing Committee
Atanasov Atanas, Bulgaria - Editor in Chief
Mihailov Nikolay, Bulgaria
Vezirov Chavdar, Bulgaria
Kolev Rumen, Bulgaria
Bikic Sinisa, Serbia
Vlăduţ Valentin, Romania
Kolev Bozidar, Bulgaria
Dochev Veselin, Bulgaria
Bungescu Sorin, Romania
Knežević Dario, Croatia
Hristakov Ivailo, Bulgaria
International Scientific Committee
Vezirov Chavdar, Bulgaria
Banaj Đuro, Croatia
Berzsenyi Zoltan, Hungary
Vulkov Lubin, Bulgaria
Inoue Keiichi, Japan
Vlăduţ Valentin, Romania
Martinov Milan, Serbia
Hester Susan, Australia
Tsachev Ilia, Bulgaria
Fröba Norbert, Germany
Borisov Boris, Bulgaria
Perković Anica, Croatia
Zheliazkova Irina, Bulgaria
Bungescu Sorin, Romania
Sindir Kamil, Turkey
Jovanović Larisa, Serbia
ISBN 978- 954-91147-3-7
Printed in Bulgaria
Printing House “Angel Kunchev” University of Rousse
8, Studentska Street, 7017 Rousse, Bulgaria
preface
Dear Colleagues!
The International Scientific Conference ““Research People and Actual Tasks on Multidisciplinary Sciences” is first International Conference organized in Bulgaria with basic purpose to create the framework for the presentation, debate and publication of the valuable scientific results obtained by both the young members.
United by the idea of Multidisciplinary Sciences, the researchers and faculty will report the results of their research. Thus, the scientists will contribute is to promote exchange of research results, scientific ideas and their practical implementation and development work in the various disciplines.
We hope this meeting will initiate new joint research projects, new friendships. We owe special thanks to all participants, and especially to the supporting organizations.
Chief Editor
Dr. Eng. Atanas Atanasov
Contents Volume 2
Technical sciences, Processing & Post Harvest Technology and Logistics, Power and machinery
1. RESEARCHES REGARDING THE ENVIRONMENTAL POLLUTION IN THE GRAPE WINE PLANTATION AT THE PHITO-SANITARY TREATMENTS APPLICATION
Gh. Bratucu………………………………………………………………………………..1
2. THE SOIL PROTECTION – A BASE CRITERION FOR THE PROMOTION OF THE DRILLING IN NON PLOUGH LAND
Gh. Bratucu………………………………………………………………………………..6
3. RESEARCHES REGARDING THE INFLUENCE OF THE RELIABILITY OVER THE GUARANTEE LIMIT OF THE AGRICULTURAL EQUIPMENTS
Gh. Bratucu, I. Capatina………………………………………………………………..11
4. THEORETICAL ASPECTS REGARDING THE DYNAMIC OF TRACTOR – SUBSOILER SYSTEM
I. Capatina…………………………………………………………………………….…16
5. THEORETICAL RESEARCHES CONCERNING THE ORGANOLEPTIC PROPERTIES IMPROVEMENT OF DISTILLATES WINE THROUGH THE ULTRASOUND TECHNIQUE
M. Danciu, A. Constantin…………………………………………………………….....21
6. NON-THERMAL TREATMENT OF FOODSTUFF. ELECTRIC POTENTIAL AND ELECTRIC FIELD DISTRIBUTION IN A CORONA DISCHARGE
A.M. Constantin, M. Danciu, C Bica…………………………………………..……….26
7. RESEARCHES CONCERNING INFLUENCE PROCESSING TIME, OF FREQUENCY AND INTENSITY OF THE ULTRASOUND WAVES ABOUT DISTILLATES CRUEL WINE
M. Danciu, A. Constantin……………………………………………………………….31
8. ANALYSE OF THE INFLUENCE FACTORS IN THE WORK PROCESS EXECUTED BY THE MINERAL FERTILIZERS SPREADING MACHINES ON THE CENTRIFUGAL WAY
Hodîrnău Marius...... 36
9. RESEARCHES LOOKING THE METHODS OF TRAJECTORI FOLLOW DESCRIBED IN FREE FLY OF TO THE PARTICLES OF MATERIAL
Hodirnau Marius, Loghin Florin…………………………………………………….....41
10. CONSIDERATIONS REGARDING THE ACCURACY AND RELIABILITY OF METERING PUMPS DESTINED FOR DOSING THE VISCOUS FOOD PRODUCTS
Ramona Lupşa (Drăgoiu), and S. Popescu…………………………………………..46
11. Advanced methods for assessing potato impact damage
D.M. Danila, and S. Popescu…………………………………………………..………51
12. studY of vertical oscillations of the working sections of precision seeders
O. S. Opris, and S. Popescu………………………………………………………….. 56
13. STUDIES AND RESEARCHES REGARDING THE WORKING PROCESS OF THE SOWING MACHINES
Adrian Ilea, Radu Ilea……………………………………………………………………61
14. Микропроцесорна система със серийна памет за изследване на зърноприбиращ комбайн
Л. Йорданов, М. Михайлов, Вл. Витков……………………………………………..65
15. USING THE LAGRANGE EQUATIONS IN THE BRAKING DYNAMICS OF SYSTEM TRACTOR-TRAILER
V. Padureanu, M. Nastasoiu, S. Nastasoiu……………………………………………71
16. МЕХАНИЗИРАНО ЗАСАЖДАНЕ НА ПРИСАДЕНИ ВКОРЕНЕНИ ЯБЪЛКОВИ ПОДЛОЖКИ
Запрян Запрянов, Сава Табаков, Людмил Ангелов………………………………76
17. POWER CONSUMPTION AT THE TRACTOR POWER TAKE–OFF SHAFT FOR THE OPERATION OF TWO–ROW FIELD FORAGE HARVESTER
R. Koprivica1, N. Stanimirovic2, I. Mihajlovic3, V. Stevovic1...... 79
18. АЛГОРИТЪМ ЗА УПРАВЛЕНИЕ И СТРУКТУРНА СХЕМА НА ЕЛЕКТРОННА СИСТЕМА ЗА УПРАВЛЕНИЕ НА ПРОЦЕСА НА ВЛАГОТОПЛИННА ОБРАБОТКА НА ЗЪРНЕНИ КУЛТУРИ ПРИ ПРОИЗВОДСТВО НА РАСТИТЕЛНИ МАСЛА
Seher Kadirova, Ivan Evstatiev………………………………………………………...84
19. MATHEMATICAL MODEL OF THE MATERIAL PASSAGE ON SUCCESSIVE CLEANING DEVICES WITH ROLLING CONVEYORS FROM THE IMPURITIES CLEANING SYSTEMS OF THE BULB AND TUBERCLE HARVESTERS
V.V. Safta…………………………………………………………………………..……89
20. ИЗСЛЕДВАНЕ НА ВЛИЯНИЕТО НА ПАРАМЕТРИТЕ НА ПРОЦЕСА СУШЕНЕ ВЪРХУ ТЕМПЕРАТУРНОВЛАЖНОСТНИЯ РЕЖИМ В ИНСТАЛАЦИЯ ЗА ПРОИЗВОДСТВО НА ЯЙЧЕН ПРАХ
Venelin Dimitrov, Nadezhda Evstatieva………………………………………………94
21. RESEARCH CONCERNING THE SHAKING DEVICES ON GRAPE HARVESTING MACHINE
I. Baisan, O. Balan……………………………………………………..………………99
22. THE IMPACT OF SHAKING DEVICES FROM GRAPE HARVESTING MACHINES UPON THE VINE
I. Baisan, V. Craciun...... 103
23. SOME CONSIDERATIONS REGARDING THE STUDY OF THE PARTICLES MOVEMENT ON PLANSIFTERS WITH CIRCULAR PLANAR MOVEMENT
Gh. Voicu, N. Orasanu, E. Maican……………………………………………….….108
24. SOME CONSIDERATIONS ABOUT THE STUDY OF PARTICLES MOTION ON THE CONICAL SIEVES
Nicolaie Oraşanu and Gheorghe Voicu……………………………………………113
25. Research about correlation between the constructive and kinematical parameters of milling machines
G. Paraschiv, S.Şt. Biriş, E. Maican, V. Vlăduţ……………………………………118
26. STUDIES REGARDING THE OPTIMIZATION OF THE MILLING MACHINES WORKING PROCESS
G. Paraschiv, I. Paunescu, E. Maican, S. Bungescu……………………………..122
27. THE EFFECT OF WHEELS OR TRACKS ON SOIL
D. Knežević, L. Šumanovac, T. Jurić, P. Lukač, A. Atanasov……………………128
28. PLAN AGRICULTURAL MECHANIZATION IN PLANT PRODUCTION AND STORAGE OF SILAGE CORN IN FOIL BOWELS
B. Bagarić, V. Zebec, D. Jelošek, R. Zimmer……………………...…………...….133
29. MATHEMATICAL METHOD OF MASS FLOW DESIGN FOR DOSING SCREW EXTRACTORS DESTINED FOR AGRO-FOOD BULK SOLIDS SILO
D. Ola, C. Fuerll and S. Popescu……………………………………………………137
30. DEVELOPMENT OF AN EXPERIMENTAL STAND FOR DOSING SCREW FEEDERS DESTINED FOR DETERMINATION OF THE DOSING PRECISION AND FLOW CHARACTERISTICS OF AGRO-FOOD BULK SOLIDS
D. Ola and M. Mănescu...... 142
31. THEORETICAL CALCULUS OF THE BRAKING TORQUE FOR AGRICULTURAL TRANSPORT VEHICLE EQUIPPED WITH INERTIAL BRAKING SYSTEMS
Lucretia Popa...... 147
32. ASPECTS CONCERNING THE PROCESS OF WORKING OF DISTRIBUTION MACHINES CASTING WHICH ARE EQUIPING THE BROADCAST SEEDERS, THE INFLUENCE ON THE UNIFORMITY OF IN TURN DISTRIBUTION SEEDS
Loghin Florin Lucian, Hodîrnău Marius...... 152
33. THE INFLUENCE OF CONSTRUCTIVE PARAMETERS OF THE ROTOR OVER THE ENERGETICS OF THE TRACTOR-WORKING MACHINE TECHNICAL SYSTEM USED IN WORKING THE SOIL BETWEEN THE TREE ROWS
S. Boruz, M. Bădescu and M. Glodeanu…………………………………..………..157
34. OSCILLATIONS OF SELF-STEERING WHEELS OF AGRICULTURAL SEMITRAILERS
Ciuperca Radu…………………………………………………………………………163
35. Possibilities to obtain of low speed of agricultural tractors by the supplementary hydrostatic drive
S. Popescu, G. Popa and V. popescu………………………………………………168
36. RESEARCHEs ON the InfluenCE OF PARAMETERS OF tractor-carried hole digging machines ON THE DRIVING POWER consumption
A. Olteanu, and S. Popescu………………………..…………………………………173
37. Analysis of THE INFLUENCE OF CONSTRUCTIVE AND WORK PARAMETERS OF AGRICULTURAL tractor WHEELS TIRE UPON THE agricultural SOIL STRESS
S. Popescu, and T. A. Ene…………………………………………………………….178
38. Advantages of using water heaters for Diesel engines
Florin Marcut, Mihai Jadaneant………………………………………………………183
39. Advanced modelLing of stress distribution in agricultural soil under different traction devices
S.Şt. Biriş, E. Maican, M. Bayer, V. Vlăduţ, S. Bungescu, and M. Prunău………188
40. THE OPERATORS PROTECTION SECUREMENT WHO SERVE THE AGRICULTURAL TRACTORS WITH NARROW GAUGE BY TESTING THE PROTECTION DEVICES IN SIMULATED AND SPEEDY REGIME
Vlăduţ V., Braharu D., Băjenaru S., Biriş S., Bungescu S., Atanasov At…………193
41. WIRELESS DATA COMMUNICATION IN AGRICULTURAL ENGINEERING. TRENDS AND PRACTICAL EXPERIMENTS
V. Popescu………………………………………………………………………………199
42. THEORETICAL CONSIDERATIONS AND EXPERIMENTAL RESULTS CONCERNING THE BLADE STRUCTURE OF THE CROSS-FLOW FANS IMPELLERS
Ioan Marcel V. INDRE………………………………………………………………….203
43. ON THE IMPACT OF TILLAGE ON SOIL PHYSICAL FEATURES AND ON THE NUMBER OF WEEDS IN WINTER WHEAT AND MAIZE CROPS
Dan Manea, Lorin Piloca………………………………………………………………209
44. THE INFLUENCE OF THE UNCONVENTIONAL TILLAGE SYSTEM UPON FUEL INTAKE IN MAIZE CROP
Piloca L., Tonea Cornelia, Drăgoi Gh., Popa D., Tonea Elena...... 214
45. THE INFLUENCE OF SOIL TILLAGE UPON SOME PHYSICAL FEATURES AND UPON WHEAT PRODUCTION IN S.D.TIMIŞOARA
Piloca L., Tonea Cornelia, Drăgoi Gh., Popa D., Tonea Elena...... 218
46. THE INFLUENCE OF SOIL MINIMAL TILLAGE UPON SOME PHYSICAL FEATURES AND UPON MAIZE PRODUCTION IN D.S. TIMIŞOARA
Piloca L., Tonea Cornelia, Drăgoi Gh., Popa D., Tonea Elena...... 221
47. MILK DENSITY AND ITS CORRELATION WITH THE FAT AND CASEIN PERCENTAGE FOR THE MILK FROM THE DIDACTIC AND EXPERIMENTAL STATION OF THE UNIVERSITY OF AGRICULTURAL SCIENCES OF BANAT TIMISOARA
Bujancă Gabriel, Bungescu Sorin……………………………………………………224
48. ANNUAL VARIATION LEVEL OF THE MILK FAT FROM THE DIDACTIC AND EXPERIMENTAL STATION OF THE UNIVERSITY OF AGRICULTURAL SCIENCES AND VETERINARY MEDICINE OF BANAT REGION FROM TIMISOARA
Bujancă Gabriel, Bungescu Sorin……..…………………….……………………….230
49. NOURISHING VALUE OF THE CONSUMPTION MEAT IN BANAT AREA
Bujancă Gabriel, Bungescu Sorin…………………………………………………...237
50. THOROUGH STUDIES CONCERNING THE EXPERIMENTAL DETERMINATION OF THE STRESSES, WHICH APPEAR ON THE BODY OF A PLOUGH SURFACE WITH A LAMELLAR MOLDBOARD THAT EQUIPED THE MODERN PLOUGHES
S.T. Bungescu, W. Stahli, S.S.Biris, V. Vladut, A.Atanasov……………………….241
51. CONTRIBUTIONS TO THE CONSTRUCTION OF A MOBILE EQUIPMENT FOR INTERVENTIONS IN CEREAL SEEDS KEPT IN WAREHOUSES
Tarcaet Radu……………………………………………………………………………247
52. DETECTING THE INTEGRITY OF THE SHAPE OF VEGETAL PRODUCTS BY USING NON-DESTRUCTIVE TECHNIQUES
M. Buzera, C. Stefan…………………………………………………………………..252
53. CONSIDERATION UPON THE COOLING PREZERVATION METHOD OF GRAINS STORAGE
L. Calin, A. Jadaneant...... 257
54. the influence of minimum tillage systems upon the soil properties and yield IN SOME ARABLE CROPS
T. Rusu, P. Gus, Ileana Bogdan, I. Oroian, Laura Paulette,
Paula Onigas and A. Pop……………………………………………………………….262
55. BOGBALLE SPREADER TESTING USING CROATIA PRODUCED FERTILIZER
Đ. Banaj, Željka Banaj, D. Kis, T. Juric...... 267
56. GIS MODEL OF BULGARIAN BALKAN MOUNTAIN PASTURES
H. Ali, B. Deliiska……………………………………………………………………..272
57. THEORETICAL STUDIES ON THE DYNAMIC BEHAVIOUR OF THE TRACTOR - SEMITRAILER ASSEMBLY ENDOWED WITH HITCH SUSPENSION
Ancuta Nedelcu…………………………………………………………………….…277
58. FRACTAL APPROACHES TO FRACTURE
C.Secrieru and I. Dumitru…………………………………………………………....282
59. THE LIMITATIONS IN USING OF WIRELINE CABLES FOR DATA TRANSMISSION AT BOREHOLE GEOPHYSICAL - CAROTAGE MEASUREMENTS
Nikola Mrdja, Milos Slankamenac, Milos Zivanov...... 287
60. A SYSTEM FOR DETECTION A CELLULAR PHONES activitIES AND OTHER HF ELECTROMAGNETIC FIELD SOURCES
Vladimir Milosavljević, Vladimir Rajs, Miloš Slankamenac, Miloš Živanov……..291
61. ALTERNATELY METHOD TO ASSESS FOR ELECTRICAL CIRCUITS POWERED FROM SOURCES WITH INTRINSIC SAFETY “i”
T. Csaszar, S. Burian, M. Darie……………………………………………………294
62. DETERMINING WAVE HEIGHT WHEN NAVIGATING IN WATERWAYS WITH LIMITED DIMENSIONS – NAVIGABLE CHANNELS OF HYDROSYSTEM DANUBE-TISA-DANUBE
I. Škiljaica, T. Dubovski…………………………………………………………….299
63. CHALCOGENIDE GLASSES for infrared imaging
Miloš Slankamenac, Miloš Živanov...... 304
64. One solution for a driver for a laser diode
Mladen Predojević, Babković Kalman, Miloš Slankamenac, Milloš Živanov…310
65. THE FIRST DERIVATIVE ALGORITHM FOR CALCULATING THE B-SPLINE COEFFICIENTS APPLIED ON DISCONTINUOUS SIGNALS
L. Mâţiu-Iovan, C. Dughir and G. Găşpăresc……………………………..….…316
66. CONSTRUCTIVE CALKULATINGS SOMETHINGS A SPECIFICAL ELEMENTS OF FLOATINGS CUTING BLOCK
Ivaylo Kirilov Angelov………………………………………………………………321
67. THE SIZEINGS AT NOTCHING WITH A USING ON THE “FLOATINGS” CUTTING BLOCK
Vasil Stefanov Kostadinov, Ivaylo Kirilov Angelov…………………………..…..326
68. THE SIZEINDS IN OUTLETING ZONE WITH A USING ON THE “FLOATING” CUTING BLOCK
Vasil Stefanov Kostadinov, Ivaylo Kirilov Angelov……………….……….…..….330
69. THE KINEMATICS AND DINAMICS A PRODUCTION PROCESS ON CUTTING AT DESIGN WORKING WITH USING ON A ROUND CUTTING ELEMENT
Vasil Stefanov Kostadinov, Ivaylo Kirilov Angelov………………………………..334
70. EXAMINING AND REDUCING THE NOISE GENERATED BY SOME POWER EQUIPMENT
C. Bărbulescu, V. Bacria……………………………………………………….……340