58 research outputs found

    Врансляция стилСТизнСнного содСрТания ΡΠΎΡ†ΠΈΠ°Π»ΡŒΠ½ΠΎΠΉ ΠΊΠΎΠΌΠΌΡƒΠ½ΠΈΠΊΠ°Ρ†ΠΈΠΈ: ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Ρ‹ ΠΊ Π²Π΅Ρ€ΠΈΡ„ΠΈΠΊΠ°Ρ†ΠΈΠΈ Ρ‚Π΅ΠΎΡ€ΠΈΠΈ ΠΊΠΎΠΌΠΌΡƒΠ½ΠΈΠΊΠ°Ρ†ΠΈΠΈ Π›ΡƒΠΌΠ°Π½Π°

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    The article is focused on operationalization of the notion "success of communication" by Luhmann on the basic of empirical research results devoted to the transmission of life styles process through advertisement. The goals of the research were to determine the structure of life styles and complexes in advertisement among young generation of students and generation of their parents and to evaluate the influence of important factors of effectiveness of advertisement as social communication.ΠŸΡ€Π΅Π΄ΠΌΠ΅Ρ‚ΠΎΠΌ статті Ρ” опСраціоналізація поняття ΠΊΠΎΠΌΡƒΠ½Ρ–ΠΊΠ°Ρ‚ΠΈΠ²Π½ΠΎΠ³ΠΎ успіху Π·Π³Ρ–Π΄Π½ΠΎ Π›ΡƒΠΌΠ°Π½Ρƒ Π· врахуванням Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°- Ρ‚Ρ–Π² Π΅ΠΌΠΏΡ–Ρ€ΠΈΡ‡Π½ΠΎΠ³ΠΎ дослідТСння процСсу трансляції стилів Тиття Ρ‡Π΅Ρ€Π΅Π· Ρ€Π΅ΠΊΠ»Π°ΠΌΡƒ. Π’ΠΈΠ·Π½Π°Ρ‡Π΅Π½ΠΈΠΉ ΡΡ‚ΡƒΠΏΡ–Π½ΡŒ відповідності структури стилів Тиття Ρ– ΡΡ‚ΠΈΠ»ΡŒΠΎΠΆΠΈΡ‚Ρ‚Ρ”Π²ΠΈΡ… комплСксів, Ρ‰ΠΎ ΠΌΡ–ΡΡ‚ΡΡ‚ΡŒΡΡ Ρƒ Ρ€Π΅ΠΊΠ»Π°ΠΌΡ–, заявлСними ΡΡ‚ΡƒΠ΄Π΅Π½Ρ‚ΡΡŒΠΊΠΎΡŽ ΠΌΠΎΠ»ΠΎΠ΄- дю Ρ– поколінням Π±Π°Ρ‚ΡŒΠΊΡ–Π², ΠΎΡ†Ρ–Π½Π΅Π½ΠΎ Π²ΠΏΠ»ΠΈΠ² Π²Π°ΠΆΠ»ΠΈΠ²ΠΈΡ… Ρ„Π°ΠΊΡ‚ΠΎΡ€Ρ–Π² СфСктивності Ρ€Π΅ΠΊΠ»Π°ΠΌΠΈ як ΡΠΎΡ†Ρ–Π°Π»ΡŒΠ½ΠΎΡ— ΠΊΠΎΠΌΡƒΠ½Ρ–ΠΊΠ°Ρ†Ρ–Ρ—

    The efficiency of using the substrate technological module in the technology of growing potato mini-tubers

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    Known technologies and methods for obtaining virus-free potato mini-tubers of a required size fraction do not fully provide the highest multiplication factor, which occurs due to the insufficient productivity of an individual potato plant. On the basis of long-term experimental data (2012…2022), an assessment of the effectiveness of methods for growing potato mini-tubers in open and protected ground conditions is given. According to the number of tubers harvested from one plant, all growing methods can be divided into two large groups:Β  traditional (3-12 potatoes per plant) and modified (more than 40 potatoes per plant). A highly efficient method has been developed for obtaining mini-tubers of potatoes harvested as they grow on soil substrates with an average annual productivity of at least 50 mini-tubers from one micro-tuber and 40 mini-tubers from one virus-free plant (with traditional substrate methods – from 3 to 10 mini-tubers). Based on this method, there has been created a substrate technological module of a new generation harvesting tubers as they grow which makes it possible to obtain an average of 40 to 55 mini-tubers from one virus-free plant over the years, that is almost 10 times more in comparison with traditional methods of growing with a single harvest at the end of vegetation. Harvesting mini-tubers as they grow up to a required size creates the possibility of obtaining tubers of one size fraction (10-25 g), which allows later, when laying the nursery of the first field reproduction, to apply mechanized planting in the field and obtain uniform seedlings

    ВСорСтичСскиС прСдпосылки интСнсификации ΡƒΠ±ΠΎΡ€ΠΊΠΈ Π»ΡƒΠΊΠ°-сСвка

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    The paper shows that upgrading the design of onion harvesting machines through the integration of diverse separation intensifiers demonstrates limited efficacy in improving the quality of cleaning commercial produce. They noted the need to comply with strict technological parameters for setting up separating systems (feeding bulbs to a straight section of the pin web surface in the absence of losses, reducing the maximum speed of collision of the bulbs with the working elements of the cleaning unit to reduce damage, as well as improving the completeness of cleaning). The study reveals that one of the options for intensifying the process of onion set cleaning from soil and soil clods can be ultrasonic-assisted heap moistening during separation. (Research purpose) The research aims to determine theoretical principles driving the intensification of onion set cleaning from mechanical impurities. (Materials and methods) The research employed system analysis and synthesis methods, physical modeling based on probability theory andΒ  mathematical statistics, numerical techniques for solving analytical dependencies, classical mechanics methods - fundamental principles of fracture theory, soil mechanics. (Results and discussion) The paper justifies the necessary optimum regime for intensifying onion set harvesting and cleansing them from mechanical impurities. It substantiates the functional diagram of a digging-type onion harvester featuring an ultrasonic cleaning module, taking into account the functions of the state, external and control actions, as well as performance indicators. (Conclusions) The research resulted in developing a design concept for an ultrasonic-equipped separating module of a harvester to improve the onion set cleaning process. This design conforms to the agrotechnical requirements, ensuring maximum soil and impurity sieving (at least 98 percent), minimizing losses (not exceeding 2 percent) and bulb damage (not exceeding 2 percent).Показали, Ρ‡Ρ‚ΠΎ ΡΠΎΠ²Π΅Ρ€ΡˆΠ΅Π½ΡΡ‚Π²ΠΎΠ²Π°Π½ΠΈΠ΅ конструкции ΡΠ΅ΠΏΠ°Ρ€ΠΈΡ€ΡƒΡŽΡ‰ΠΈΡ… устройств машин для ΡƒΠ±ΠΎΡ€ΠΊΠΈ Π»ΡƒΠΊΠ° ΠΏΡƒΡ‚Π΅ΠΌ установки Ρ€Π°Π·Π»ΠΈΡ‡Π½Ρ‹Ρ… Ρ‚ΠΈΠΏΠΎΠ² интСнсификаторов сСпарации Π½Π΅ Π² ΠΏΠΎΠ»Π½ΠΎΠΉ ΠΌΠ΅Ρ€Π΅ ΠΏΠΎΠ²Ρ‹ΡˆΠ°Π΅Ρ‚ качСство очистки Ρ‚ΠΎΠ²Π°Ρ€Π½ΠΎΠΉ ΠΏΡ€ΠΎΠ΄ΡƒΠΊΡ†ΠΈΠΈ. ΠžΡ‚ΠΌΠ΅Ρ‚ΠΈΠ»ΠΈ Π½Π΅ΠΎΠ±Ρ…ΠΎΠ΄ΠΈΠΌΠΎΡΡ‚ΡŒ соблюдСния ТСстких тСхнологичСских ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΎΠ² настройки ΡΠ΅ΠΏΠ°Ρ€ΠΈΡ€ΡƒΡŽΡ‰ΠΈΡ… систСм (ΠΏΠΎΠ΄Π°Ρ‡Π° Π»ΡƒΠΊΠΎΠ²ΠΈΡ† Π½Π° ΡˆΡ‚ΠΈΡ„Ρ‚ΠΎΠ²ΠΎΠ΅ ΠΏΠΎΠ»ΠΎΡ‚Π½ΠΎ Π±Π΅Π· ΠΏΠΎΡ‚Π΅Ρ€ΡŒ, сниТСниС максимальной скорости соударСния с Ρ€Π°Π±ΠΎΡ‡ΠΈΠΌΠΈ элСмСнтами установки , ΡƒΠ»ΡƒΡ‡ΡˆΠ΅Π½ΠΈΠ΅ ΠΏΠΎΠ»Π½ΠΎΡ‚Ρ‹ очистки). Показали, Ρ‡Ρ‚ΠΎ ΠΎΠ΄Π½ΠΈΠΌ ΠΈΠ· Π²Π°Ρ€ΠΈΠ°Π½Ρ‚ΠΎΠ² интСнсификации очистки Π»ΡƒΠΊΠ°-сСвка ΠΎΡ‚ ΠΏΠΎΡ‡Π²Ρ‹ ΠΈ соизмСримых с Π½ΠΈΠΌ ΠΏΠΎΡ‡Π²Π΅Π½Π½Ρ‹Ρ… ΠΊΠΎΠΌΠΊΠΎΠ² ΠΌΠΎΠΆΠ΅Ρ‚ ΡΡ‚Π°Ρ‚ΡŒ ΡƒΠ²Π»Π°ΠΆΠ½Π΅Π½ΠΈΠ΅ Π²ΠΎΡ€ΠΎΡ…Π° ΠΏΡ€ΠΈ сСпарации с ΡƒΠ»ΡŒΡ‚Ρ€Π°Π·Π²ΡƒΠΊΠΎΠ²Ρ‹ΠΌ воздСйствиСм. (ЦСль исслСдования) ΠžΠΏΡ€Π΅Π΄Π΅Π»ΠΈΡ‚ΡŒ тСорСтичСскиС закономСрности интСнсификации очистки Π»ΡƒΠΊΠ°-сСвка ΠΎΡ‚ мСханичСских примСсСй. (ΠœΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Ρ‹ ΠΈ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹) Использовали ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹ систСмного Π°Π½Π°Π»ΠΈΠ·Π° ΠΈ синтСза, физичСского модСлирования, основанныС Π½Π° Ρ‚Π΅ΠΎΡ€ΠΈΠΈ вСроятности ΠΈ ΠΏΡ€ΠΈΠ½Ρ†ΠΈΠΏΠ°Ρ… матСматичСской статистики, числСнныС ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹ Ρ€Π΅ΡˆΠ΅Π½ΠΈΡ аналитичСских зависимостСй, ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹ классичСской ΠΌΠ΅Ρ…Π°Π½ΠΈΠΊΠΈ – основныС полоТСния Ρ‚Π΅ΠΎΡ€ΠΈΠΈ Ρ€Π°Π·Ρ€ΡƒΡˆΠ΅Π½ΠΈΡ, ΠΌΠ΅Ρ…Π°Π½ΠΈΠΊΠΈ Π³Ρ€ΡƒΠ½Ρ‚ΠΎΠ². (Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ ΠΈ обсуТдСниС) Обосновали Π½Π΅ΠΎΠ±Ρ…ΠΎΠ΄ΠΈΠΌΡ‹ΠΉ Ρ€Π°Ρ†ΠΈΠΎΠ½Π°Π»ΡŒΠ½Ρ‹ΠΉ Ρ€Π΅ΠΆΠΈΠΌ интСнсификации ΡƒΠ±ΠΎΡ€ΠΊΠΈ Π»ΡƒΠΊΠ°-сСвка ΠΈ очистки Π΅Π³ΠΎ ΠΎΡ‚ мСханичСских примСсСй, Ρ„ΡƒΠ½ΠΊΡ†ΠΈΠΎΠ½Π°Π»ΡŒΠ½ΡƒΡŽ схСму ΠΌΠ°ΡˆΠΈΠ½Ρ‹ для ΡƒΠ±ΠΎΡ€ΠΊΠΈ Π»ΡƒΠΊΠ° Π²Ρ‹ΠΊΠ°ΠΏΡ‹Π²Π°ΡŽΡ‰Π΅Π³ΠΎ Ρ‚ΠΈΠΏΠ° с ΠΌΠΎΠ΄ΡƒΠ»Π΅ΠΌ ΡƒΠ»ΡŒΡ‚Ρ€Π°Π·Π²ΡƒΠΊΠΎΠ²ΠΎΠΉ очистки, ΡƒΡ‡ΠΈΡ‚Ρ‹Π²Π°ΡŽΡ‰ΡƒΡŽ Ρ„ΡƒΠ½ΠΊΡ†ΠΈΠΈ состояния, внСшнСго ΠΈ ΡƒΠΏΡ€Π°Π²Π»ΡΡŽΡ‰Π΅Π³ΠΎ воздСйствий, Π° Ρ‚Π°ΠΊΠΆΠ΅ ΠΏΠΎΠΊΠ°Π·Π°Ρ‚Π΅Π»Π΅ΠΉ качСства Ρ€Π°Π±ΠΎΡ‚Ρ‹. (Π’Ρ‹Π²ΠΎΠ΄Ρ‹) Π Π°Π·Ρ€Π°Π±ΠΎΡ‚Π°Π»ΠΈ ΠΊΠΎΠ½ΡΡ‚Ρ€ΡƒΠΊΡ‚ΠΈΠ²Π½ΡƒΡŽ схСму ΡΠ΅ΠΏΠ°Ρ€ΠΈΡ€ΡƒΡŽΡ‰Π΅Π³ΠΎ модуля ΡƒΠ±ΠΎΡ€ΠΎΡ‡Π½ΠΎΠΉ ΠΌΠ°ΡˆΠΈΠ½Ρ‹ с ΡƒΠ»ΡŒΡ‚Ρ€Π°Π·Π²ΡƒΠΊΠΎΠ²Ρ‹ΠΌ воздСйствиСм для ΡΠΎΠ²Π΅Ρ€ΡˆΠ΅Π½ΡΡ‚Π²ΠΎΠ²Π°Π½ΠΈΡ процСсса очистки Π»ΡƒΠΊΠ°-сСвка, исходя ΠΈΠ· условий максимального просСивания ΠΏΠΎΡ‡Π²Π΅Π½Π½Ρ‹Ρ… ΠΈ Π΄Ρ€ΡƒΠ³ΠΈΡ… примСсСй Π² ΠΏΡ€Π΅Π΄Π΅Π»Π°Ρ… агротСхничСских Ρ‚Ρ€Π΅Π±ΠΎΠ²Π°Π½ΠΈΠΉ (Π½Π΅ ΠΌΠ΅Π½Π΅Π΅ 98 ΠΏΡ€ΠΎΡ†Π΅Π½Ρ‚ΠΎΠ²), Π° Ρ‚Π°ΠΊΠΆΠ΅ сокращСния Π΄ΠΎ ΠΌΠΈΠ½ΠΈΠΌΡƒΠΌΠ° ΠΏΠΎΡ‚Π΅Ρ€ΡŒ (Π½Π΅ Π±ΠΎΠ»Π΅Π΅ 2 ΠΏΡ€ΠΎΡ†Π΅Π½Ρ‚ΠΎΠ²) ΠΈ ΠΏΠΎΠ²Ρ€Π΅ΠΆΠ΄Π΅Π½ΠΈΠΉ Π»ΡƒΠΊΠΎΠ²ΠΈΡ† (Π½Π΅ Π±ΠΎΠ»Π΅Π΅ 2 ΠΏΡ€ΠΎΡ†Π΅Π½Ρ‚ΠΎΠ²)

    ИсслСдованиС ΡΠ΅ΠΏΠ°Ρ€ΠΈΡ€ΡƒΡŽΡ‰Π΅ΠΉ систСмы с использованиСм Ρ‚Π΅ΠΏΠ»ΠΎΡ‚Ρ‹ ΠΎΡ‚Ρ€Π°Π±ΠΎΡ‚Π°Π²ΡˆΠΈΡ… Π³Π°Π·ΠΎΠ² двигатСля свСклоуборочного ΠΊΠΎΠΌΠ±Π°ΠΉΠ½Π°

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    It was noted that increased soil moisture worsens the quality of harvesting root crops due to a decrease in the completeness of separation. To increase the separating capacity of a slotted cleaner for root crops, it was proposed to improve the heating of the separating surface with hot exhaust gas. (Research purpose) To optimize the design and technological parameters of an exhaust gas heat separation system of the sugar beet harvester power plant. (Materials and methods) Federal Scientific Agroengineering Center VIM developed an exhaust gas heat separation system for harvesting root crops and potatoes in high moisture conditions using the heat of the harvester power plant exhaust gases. The cleaning quality of the separating system of a self-propelled sugar beet harvester was determined under the gradual engine load from 0 to 100 percent of the nominal rated power. The temperature of the exhaust gases was measured with the assumption of changes in the engine load and its effective power. (Results and discussion) The experiment revealed an increase in the completeness of the separation of a root crops heap from 96.0 to 98.8 percent at 26-32 percent soil moisture due to the separation system in the form of a cleaning star, which uses the heat of the engine exhaust gases. The established optimal values of the factors under consideration are as follows: the separating star rotation rate is 21.8 revolutions per minute, the distance between the separating star and the deflector is 128.4 millimeters. (Conclusions) It was determined that the high quality of the technological process of root crops harvesting in high soil moisture conditions ensuring a 97-percent separation efficiency is possible if optimize the separating device design and technological parameters and maintain the separating star rotation rate at 20-22 revolutions per minute and the distance between the separating star and the deflector within 120-140 millimeters. The authors noted the prospects of developing this system and the need for theoretical and experimental studies to improve the design and technological process of the harvester separating system.ΠžΡ‚ΠΌΠ΅Ρ‚ΠΈΠ»ΠΈ, Ρ‡Ρ‚ΠΎ ΠΏΠΎΠ²Ρ‹ΡˆΠ΅Π½Π½Π°Ρ Π²Π»Π°ΠΆΠ½ΠΎΡΡ‚ΡŒ ΠΏΠΎΡ‡Π²Ρ‹ ΡƒΡ…ΡƒΠ΄ΡˆΠ°Π΅Ρ‚ качСство ΡƒΠ±ΠΎΡ€ΠΊΠΈ ΠΊΠΎΡ€Π½Π΅ΠΏΠ»ΠΎΠ΄ΠΎΠ² ΠΈΠ·-Π·Π° сниТСния ΠΏΠΎΠ»Π½ΠΎΡ‚Ρ‹ сСпарации. Π§Ρ‚ΠΎΠ±Ρ‹ ΠΏΠΎΠ²Ρ‹ΡΠΈΡ‚ΡŒ ΡΠ΅ΠΏΠ°Ρ€ΠΈΡ€ΡƒΡŽΡ‰ΡƒΡŽ ΡΠΏΠΎΡΠΎΠ±Π½ΠΎΡΡ‚ΡŒ Ρ‰Π΅Π»Π΅Π²Ρ‹Ρ… устройств для очистки ΠΊΠΎΡ€Π½Π΅ΠΏΠ»ΠΎΠ΄ΠΎΠ², ΠΏΡ€Π΅Π΄Π»ΠΎΠΆΠΈΠ»ΠΈ ΡƒΡΠΎΠ²Π΅Ρ€ΡˆΠ΅Π½ΡΡ‚Π²ΠΎΠ²Π°Ρ‚ΡŒ ΠΎΠ±ΠΎΠ³Ρ€Π΅Π² ΡΠ΅ΠΏΠ°Ρ€ΠΈΡ€ΡƒΡŽΡ‰Π΅ΠΉ повСрхности горячим Π²Ρ‹Ρ…Π»ΠΎΠΏΠ½Ρ‹ΠΌ Π³Π°Π·ΠΎΠΌ. (ЦСль исслСдований) ΠžΠΏΡ‚ΠΈΠΌΠΈΠ·ΠΈΡ€ΠΎΠ²Π°Ρ‚ΡŒ конструктивно-тСхнологичСскиС ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€Ρ‹ ΡΠ΅ΠΏΠ°Ρ€ΠΈΡ€ΡƒΡŽΡ‰Π΅Π³ΠΎ устройства с использованиСм Ρ‚Π΅ΠΏΠ»ΠΎΡ‚Ρ‹ ΠΎΡ‚Ρ€Π°Π±ΠΎΡ‚Π°Π²ΡˆΠΈΡ… Π³Π°Π·ΠΎΠ² силовой установки ΠΌΠ°ΡˆΠΈΠ½Ρ‹ для ΡƒΠ±ΠΎΡ€ΠΊΠΈ сахарной свСклы. (ΠœΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Ρ‹ ΠΈ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹) Π’ Π€Π΅Π΄Π΅Ρ€Π°Π»ΡŒΠ½ΠΎΠΌ Π½Π°ΡƒΡ‡Π½ΠΎΠΌ Π°Π³Ρ€ΠΎΠΈΠ½ΠΆΠ΅Π½Π΅Ρ€Π½ΠΎΠΌ Ρ†Π΅Π½Ρ‚Ρ€Π΅ Π’Π˜Πœ Ρ€Π°Π·Ρ€Π°Π±ΠΎΡ‚Π°Π»ΠΈ ΡΠ΅ΠΏΠ°Ρ€ΠΈΡ€ΡƒΡŽΡ‰ΡƒΡŽ систСму ΠΌΠ°ΡˆΠΈΠ½Ρ‹ для ΡƒΠ±ΠΎΡ€ΠΊΠΈ ΠΊΠΎΡ€Π½Π΅ΠΏΠ»ΠΎΠ΄ΠΎΠ² ΠΈ картофСля Π² условиях ΠΏΠΎΠ²Ρ‹ΡˆΠ΅Π½Π½ΠΎΠΉ влаТности с использованиСм Ρ‚Π΅ΠΏΠ»ΠΎΡ‚Ρ‹ ΠΎΡ‚Ρ€Π°Π±ΠΎΡ‚Π°Π²ΡˆΠΈΡ… Π³Π°Π·ΠΎΠ² силовой установки. ΠšΠ°Ρ‡Π΅ΡΡ‚Π²ΠΎ очистки ΡΠ΅ΠΏΠ°Ρ€ΠΈΡ€ΡƒΡŽΡ‰Π΅ΠΉ систСмы самоходного ΠΊΠΎΠΌΠ±Π°ΠΉΠ½Π° для ΡƒΠ±ΠΎΡ€ΠΊΠΈ сахарной свСклы опрСдСляли ΠΏΡ€ΠΈ ΠΏΠΎΡΠ»Π΅Π΄ΠΎΠ²Π°Ρ‚Π΅Π»ΡŒΠ½ΠΎΠΌ Π½Π°Π³Ρ€ΡƒΠΆΠ΅Π½ΠΈΠΈ двигатСля ΠΎΡ‚ 0 Π΄ΠΎ 100 ΠΏΡ€ΠΎΡ†Π΅Π½Ρ‚ΠΎΠ² номинальной мощности. Π˜Π·ΠΌΠ΅Ρ€ΡΠ»ΠΈ Ρ‚Π΅ΠΌΠΏΠ΅Ρ€Π°Ρ‚ΡƒΡ€Ρƒ ΠΎΡ‚Ρ€Π°Π±ΠΎΡ‚Π°Π²ΡˆΠΈΡ… Π³Π°Π·ΠΎΠ² с ΡƒΡ‡Π΅Ρ‚ΠΎΠΌ измСнСния Π½Π°Π³Ρ€ΡƒΠ·ΠΊΠΈ двигатСля ΠΈ Π΅Π³ΠΎ эффСктивной мощности. (Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ ΠΈ обсуТдСниС) Выявили ΠΏΠΎΠ²Ρ‹ΡˆΠ΅Π½ΠΈΠ΅ ΠΏΠΎΠ»Π½ΠΎΡ‚Ρ‹ сСпарации Π²ΠΎΡ€ΠΎΡ…Π° ΠΊΠΎΡ€Π½Π΅ΠΏΠ»ΠΎΠ΄ΠΎΠ² с 96,0 Π΄ΠΎ 98,8 ΠΏΡ€ΠΎΡ†Π΅Π½Ρ‚ΠΎΠ² ΠΏΡ€ΠΈ 26-32-ΠΏΡ€ΠΎΡ†Π΅Π½Ρ‚Π½ΠΎΠΉ влаТности ΠΏΠΎΡ‡Π²Ρ‹ благодаря ΡΠ΅ΠΏΠ°Ρ€ΠΈΡ€ΡƒΡŽΡ‰Π΅ΠΉ систСмС Π² Π²ΠΈΠ΄Π΅ ΠΎΡ‡ΠΈΡΡ‚ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠΉ Π·Π²Π΅Π·Π΄Ρ‹, Π³Π΄Π΅ ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΡƒΠ΅Ρ‚ΡΡ Ρ‚Π΅ΠΏΠ»ΠΎΡ‚Π° ΠΎΡ‚Ρ€Π°Π±ΠΎΡ‚Π°Π²ΡˆΠΈΡ… Π³Π°Π·ΠΎΠ² двигатСля. Установили ΠΎΠΏΡ‚ΠΈΠΌΠ°Π»ΡŒΠ½Ρ‹Π΅ значСния рассматриваСмых Ρ„Π°ΠΊΡ‚ΠΎΡ€ΠΎΠ²: частота вращСния ΡΠ΅ΠΏΠ°Ρ€ΠΈΡ€ΡƒΡŽΡ‰Π΅ΠΉ Π·Π²Π΅Π·Π΄Ρ‹ 21,8 ΠΎΠ±ΠΎΡ€ΠΎΡ‚Π° Π² ΠΌΠΈΠ½ΡƒΡ‚Ρƒ, расстояниС ΠΌΠ΅ΠΆΠ΄Ρƒ ΡΠ΅ΠΏΠ°Ρ€ΠΈΡ€ΡƒΡŽΡ‰Π΅ΠΉ Π·Π²Π΅Π·Π΄ΠΎΠΉ ΠΈ Π΄Π΅Ρ„Π»Π΅ΠΊΡ‚ΠΎΡ€ΠΎΠΌ – 128,4 ΠΌΠΈΠ»Π»ΠΈΠΌΠ΅Ρ‚Ρ€Π°. (Π’Ρ‹Π²ΠΎΠ΄Ρ‹) ΠžΠΏΡ€Π΅Π΄Π΅Π»ΠΈΠ»ΠΈ, Ρ‡Ρ‚ΠΎ качСствСнноС Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΈΠ΅ тСхнологичСского процСсса ΡƒΠ±ΠΎΡ€ΠΊΠΈ ΠΊΠΎΡ€Π½Π΅ΠΏΠ»ΠΎΠ΄ΠΎΠ² Π² условиях ΠΏΠΎΠ²Ρ‹ΡˆΠ΅Π½Π½ΠΎΠΉ влаТности ΠΏΠΎΡ‡Π²Ρ‹ с ΠΏΠΎΠ»Π½ΠΎΡ‚ΠΎΠΉ сСпарации 97 ΠΏΡ€ΠΎΡ†Π΅Π½Ρ‚ΠΎΠ² Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎ ΠΏΡ€ΠΈ ΠΎΠΏΡ‚ΠΈΠΌΠΈΠ·Π°Ρ†ΠΈΠΈ конструктивно-тСхнологичСских ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΎΠ² ΡΠ΅ΠΏΠ°Ρ€ΠΈΡ€ΡƒΡŽΡ‰Π΅Π³ΠΎ устройства: ΠΏΡ€ΠΈ частотС вращСния ΡΠ΅ΠΏΠ°Ρ€ΠΈΡ€ΡƒΡŽΡ‰Π΅ΠΉ Π·Π²Π΅Π·Π΄Ρ‹ 20-22 ΠΎΠ±ΠΎΡ€ΠΎΡ‚ΠΎΠ² Π² ΠΌΠΈΠ½ΡƒΡ‚Ρƒ ΠΈ расстоянии ΠΌΠ΅ΠΆΠ΄Ρƒ ΡΠ΅ΠΏΠ°Ρ€ΠΈΡ€ΡƒΡŽΡ‰Π΅ΠΉ Π·Π²Π΅Π·Π΄ΠΎΠΉ ΠΈ Π΄Π΅Ρ„Π»Π΅ΠΊΡ‚ΠΎΡ€ΠΎΠΌ 120-140 ΠΌΠΈΠ»Π»ΠΈΠΌΠ΅Ρ‚Ρ€ΠΎΠ². ΠžΡ‚ΠΌΠ΅Ρ‚ΠΈΠ»ΠΈ ΠΏΠ΅Ρ€ΡΠΏΠ΅ΠΊΡ‚ΠΈΠ²Π½ΠΎΡΡ‚ΡŒ Ρ€Π°Π·Ρ€Π°Π±ΠΎΡ‚ΠΊΠΈ Π΄Π°Π½Π½ΠΎΠΉ систСмы ΠΈ Π½Π΅ΠΎΠ±Ρ…ΠΎΠ΄ΠΈΠΌΠΎΡΡ‚ΡŒ тСорСтичСских ΠΈ ΡΠΊΡΠΏΠ΅Ρ€ΠΈΠΌΠ΅Π½Ρ‚Π°Π»ΡŒΠ½Ρ‹Ρ… исслСдований ΠΏΠΎ ΡΠΎΠ²Π΅Ρ€ΡˆΠ΅Π½ΡΡ‚Π²ΠΎΠ²Π°Π½ΠΈΡŽ конструкции ΠΈ тСхнологичСского процСсса Ρ€Π°Π±ΠΎΡ‚Ρ‹ ΡΠ΅ΠΏΠ°Ρ€ΠΈΡ€ΡƒΡŽΡ‰Π΅ΠΉ систСмы ΡƒΠ±ΠΎΡ€ΠΎΡ‡Π½Ρ‹Ρ… машин

    Growth of Inclined GaAs Nanowires by Molecular Beam Epitaxy: Theory and Experiment

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    The growth of inclined GaAs nanowires (NWs) during molecular beam epitaxy (MBE) on the rotating substrates is studied. The growth model provides explicitly the NW length as a function of radius, supersaturations, diffusion lengths and the tilt angle. Growth experiments are carried out on the GaAs(211)A and GaAs(111)B substrates. It is found that 20Β° inclined NWs are two times longer in average, which is explained by a larger impingement rate on their sidewalls. We find that the effective diffusion length at 550Β°C amounts to 12 nm for the surface adatoms and is more than 5,000 nm for the sidewall adatoms. Supersaturations of surface and sidewall adatoms are also estimated. The obtained results show the importance of sidewall adatoms in the MBE growth of NWs, neglected in a number of earlier studies

    Model for large-area monolayer coverage of polystyrene nanospheres by spin coating

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    Nanosphere lithography, an inexpensive and high throughput technique capable of producing nanostructure (below 100 nm feature size) arrays, relies on the formation of a monolayer of self-assembled nanospheres, followed by custom-etching to produce nanometre size features on large-area substrates. A theoretical model underpinning the self-ordering process by centrifugation is proposed to describe the interplay between the spin speed and solution concentration. The model describes the deposition of a dense and uniform monolayer by the implicit contribution of gravity, centrifugal force and surface tension, which can be accounted for using only the spin speed and the solid/liquid volume ratio. We demonstrate that the spin recipe for the monolayer formation can be represented as a pathway on a 2D phase plane. The model accounts for the ratio of polystyrene nanospheres (300 nm), water, methanol and surfactant in the solution, crucial for large area uniform and periodic monolayer deposition. The monolayer is exploited to create arrays of nanoscale features using β€˜short’ or β€˜extended’ reactive ion etching to produce 30–60 nm (diameter) nanodots or 100–200 nm (diameter) nanoholes over the entire substrate, respectively. The nanostructures were subsequently utilized to create master stamps for nanoimprint lithography

    Modeling of InAs-InSb nanowires grown by Au-assisted chemical beam epitaxy

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    Interesting phenomena during the Au-assisted chemical beam epitaxy of InAs-InSb nanowire heterostructures have been observed and interpreted within the framework of a theoretical model. An unusual, non-monotonous diameter dependence of the InSb nanowire growth rate is demonstrated experimentally within a range of deposition conditions. Such a behavior is explained by competition between the Gibbs-Thomson effect and different diffusion-induced material fluxes. Theoretical fits to the experimental data obtained at different flux pressures of In and Sb precursors allow us to deduce some important kinetic coefficients. Furthermore, we discuss why the InAs nanowire stem forms in the wurtzite phase while the upper InSb part has a pure zinc blende crystal structure. It is hypothesized that the 30 degrees angular rotation of nanowire when passing from InAs to the InSb part is driven by the lowest surface energy of (1(1) over bar 00) wurtzite and (110) zinc blende facets

    Length distributions of Au-catalyzed and In-catalyzed InAs nanowires

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    We present experimental data on the length distributions of InAs nanowires grown by chemical beam epitaxy with Au catalyst nanoparticles obtained by thermal dewetting of Au film, Au colloidal nanoparticles and In droplets. Poissonian length distributions are observed in the first case. Au colloidal nanoparticles produce broader and asymmetric length distributions of InAs nanowires. However, the distributions can be strongly narrowed by removing the high temperature annealing step. The length distributions for the In-catalyzed growth are instead very broad. We develop a generic model that is capable of describing the observed behaviors by accounting for both the incubation time for nanowire growth and secondary nucleation of In droplets. These results allow us to formulate some general recipes for obtaining more uniform length distributions of III-V nanowires
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