Готові списки джерел за темами / Round plate

Зміст

  1. Статті в журналах
  2. Дисертації
  3. Книги
  4. Частини книг
  5. Тези доповідей конференцій
  6. Звіти організацій

Добірка наукової літератури з теми "Round plate"

Автор: Grafiati
Опубліковано: 30 травня 2022
Оновлено: 31 травня 2022

Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями

Оберіть тип джерела:

Ознайомтеся зі списками актуальних статей, книг, дисертацій, тез та інших наукових джерел на тему "Round plate".

Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.

Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.

Статті в журналах з теми "Round plate"

1

Schoenwolf, G. C., and I. S. Alvarez. "Roles of neuroepithelial cell rearrangement and division in shaping of the avian neural plate." Development 106, no. 3 (July 1, 1989): 427–39. http://dx.doi.org/10.1242/dev.106.3.427.

Повний текст джерела
Анотація:
Shaping of the neural plate, one of the most striking events of neurulation, involves rapid craniocaudal extension. In this study, we evaluated the roles of two processes in neural plate extension: neuroepithelial cell rearrangement and cell division. Quail epiblast plugs of constant size were grafted either just rostral to Hensen's node or paranodally and the resulting chimeras were examined at selected times postgrafting. By comparing the size of the original plug, the number of cells it contained and the distribution of cells within it to those same features of the grafts in chimeras, we were able to ascertain that, during transformation of the flat neural plate into the closed neural tube (a period requiring 24 h), the graft undergoes a maximum of 3 rounds of craniocaudal extension (each round of craniocaudal extension was defined as a doubling of graft length, so 3 rounds equaled an 8-fold increase in length). Such extension is accompanied by 2 rounds of cell rearrangement and 2–3 rounds of cell division (cell rearrangement occurred mediolaterally, so each round was defined as a halving of the number of cells in the width of the graft and a doubling of the number of cells in its length; each round of cell division was defined as a doubling of graft cell number). Modeling studies demonstrate that these amounts of cell rearrangement and division are sufficient to approximate the shaping of the neural plate that normally ensues during neurulation, provided that some of the cell division occurs within the longitudinal plane of the neural plate and some within its transverse plane: longitudinal cell division results in craniocaudal extension of the neural plate, whereas transverse cell division results in lateral expansion of the neural plate such as that occurring at its cranial end; cell rearrangement results in craniocaudal extension of the neural plate as well as in its narrowing. In conclusion, our results provide evidence that shaping of the neural plate involves mediolateral cell rearrangement and cell division, with the latter occurring within both the longitudinal and transverse planes of the neural plate.
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Liu, Chuang, Wen Liang Du, Ya Jing Quan, Kai Xing, and Heng Han. "Influence of Sieve Structural Parameters on Sieving of Shelled Buckwheat." Advanced Materials Research 915-916 (April 2014): 978–84. http://dx.doi.org/10.4028/www.scientific.net/amr.915-916.978.

Повний текст джерела
Анотація:
The problems of high falsesieving rate and low productivity are encountered while sieving shelled buckwheat with traditional round plate sieve. This paper presents a design idea for improving the sieving effect by changing the plate structure. The improved designs consist of a round plate sieve with larger percentage of sieving area than the traditional round plate sieve and a triangular plate sieve with the approximately same geometry as shelled buckwheat grains. Tests are conducted to compare the sieving performance of traditional round plate sieve with the newly designed round plate sieve with different percentage of sieving areas and apertures. Also the traditional round plate sieve is compared with triangle plate sieve with different percentage of sieving areas and apertures. Compared to traditional round plate sieve, the falsesieving rate for newly designed round plate sieve with an aperture isφ4.4mm is reduced by 3.6.A round plate sieve with a percentage of sieving area of59.7%, aperture ofφ4.3mm, is used to sieve the shelled buckwheat of sizeφ4.6~4.7mm.A falsesieving rate of2.3, and non-sieving rate of17.4 are obtained and the sieving effect is found to be the best. For the triangle plate sieve a falsesieving rate of90.2 and non-sieving rate of92.1 are obtained. The triangle plate sieve is found unsuitable for the sieving of shelled buckwheat.
Стилі APA, Harvard, Vancouver, ISO та ін.
3

XUE, JING, XIAOCHEN LI, LIZHI WANG, PANPAN XIAN, and HUIQING CHEN. "Bryochoerus liupanensis sp. nov. and Pseudechiniscus chengi. sp. nov. (Tardigrada: Heterotardigrada: Echiniscidae) from China." Zootaxa 4291, no. 2 (July 12, 2017): 324. http://dx.doi.org/10.11646/zootaxa.4291.2.5.

Повний текст джерела
Анотація:
Two new species from China, Bryochoerus liupanensis sp. nov. and Pseudechiniscus chengi sp. nov. (Tardigrada: Heterotardigrada: Echiniscidae), are reported. Bryochoerus liupanensis sp. nov. is characterized by median plates 1 and 2 divided into four parts while median plate 3 is divided into three parts, and by two lateral plates on each side of all median plates. The new species differs from Bryochoerus intermedius in having a different cuticular sculpture and different lateral plates. Pseudechiniscus chengi sp. nov. is characterized by: head plate faceted, cephalic papilla dome-shaped, pseudosegmental plate with a longitudinal median fold, all plates including the dorsal plates and plates on legs with ornamentation composed of dense round dots, differing in size, and lacking striae between the dots. Pseudechiniscus chengi sp. nov. is most similar to Pseudechiniscus santomensis but differs by: lacking striae between the round dots on dorsal plates, lacking the tiny projections on the caudal margin of pseudosegmental plate, and the divided pseudosegmental plate.
Стилі APA, Harvard, Vancouver, ISO та ін.
4

TURKOV, A. V., S. I. POLESHKO, E. A. FINADEEVA, and K. V. MARFIN. "THE RELATIONSHIP OF DEFLECTIONS AND FREQUENCIES OF NATURAL TRANSVERSE VIBRATIONS OF CIRCULAR ISOTROPIC PLATES OF VARIABLE THICKNESS ACCORDING TO THE LAW A SQUARE PARABOLA WITH A THICKENING TO THE CENTER." Building and reconstruction 99, no. 1 (2022): 59–66. http://dx.doi.org/10.33979/2073-7416-2022-99-1-59-66.

Повний текст джерела
Анотація:
The relationship between the maximum deflections W0 from a static uniformly distributed load q and the fundamental frequency of natural transverse vibrations ω of a round isotropic plate of variable thickness according to the law of a square parabola with a thickening in the center under homogeneous conditions of support along the outer contour, depending on the ratio of the thickness of the plate in the center to the thickness along the edge, is considered.According to the results of the study, graphs of the dependence of the maximum deflection and the frequency of natural vibrations of the plate on the ratio t2/ t1 are constructed. It is shown that for round plates of linearly variable thickness at t2/t1≤1.1, the coefficient K with an accuracy of 5.29% coincides with the analytical coefficient for round plates of constant thickness.
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Li, Bin, Fan Xiao, and Sheng Nan Zhang. "Approach to the Ear Plate and Round Steel Connection." Advanced Materials Research 1025-1026 (September 2014): 74–79. http://dx.doi.org/10.4028/www.scientific.net/amr.1025-1026.74.

Повний текст джерела
Анотація:
Basing on the ANSYS finite element analysis, the research takes a flat type tower crane boom on the ear plate and upper chord (round steel) of the connection as example. On the shape of the ear plate, welding form, round steel insert depth and the thickness of the ear plate concrete structure and parameter design are analyzed. Comparing the mechanical properties of bearing model, and then to discuss the ear plate and round steel joint stress concentration problem.
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Il’gamov, M. A., and V. E. Moiseeva. "Bending of a Round Plate under Gas Pressure." Mechanics of Solids 54, no. 4 (July 2019): 551–58. http://dx.doi.org/10.3103/s0025654419040083.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Shlyakhtin, D. A., ZH M. Dauletmuratova, and M. A. Kalmova. "Unsteady thermoelasticity problem for rigidly fixed round plate." IOP Conference Series: Materials Science and Engineering 775 (April 18, 2020): 012137. http://dx.doi.org/10.1088/1757-899x/775/1/012137.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
8

Lewandowski, W. M., P. Kubski, and J. M. Khubeiz. "Natural convection heat transfer from round horizontal plate." Wärme- und Stoffübertragung 27, no. 5 (May 1992): 281–87. http://dx.doi.org/10.1007/bf01589965.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
9

Cherepanov, Anatoliy. "FEATURES OF CALCULATING THE DEFLECTION OF ROUND PLATES." Modern Technologies and Scientific and Technological Progress 1, no. 1 (May 17, 2021): 211–12. http://dx.doi.org/10.36629/2686-9896-2021-1-1-211-212.

Повний текст джерела
Анотація:
A method for calculating the deflection of a round flat steel plate bearing an ax isymmetric load is considered. For practical calculations, dimensionless coefficients of deflection in the center of the plate, deflection at a certain distance from the center of the plate, the stress coefficient and the accompanying function, which depends on the deflection of the plate and the pressure force on it, are used.
Стилі APA, Harvard, Vancouver, ISO та ін.
10

Cherepanov, Anatoliy. "CALCULATION OF THE DEFLECTION OF A PINCHED ROUND PLATE." Modern Technologies and Scientific and Technological Progress 1, no. 1 (May 17, 2021): 209–10. http://dx.doi.org/10.36629/2686-9896-2021-1-1-209-210.

Повний текст джерела
Анотація:
A method for calculating the deflection of a round flat steel plate pinched along the edge, bearing an axisymmetric load, is considered. For practical calculations, dimensionless coeffi cients of deflection in the center and in the area of fixing a round flat plate pinched along the edge are applied, the stress coefficient and the accompanying function, which depends on the deflection of the plate and the pressure force on it, are taken into account
Стилі APA, Harvard, Vancouver, ISO та ін.
Більше джерел

Дисертації з теми "Round plate"

1

Yu, Lap Chi Alfred. "Performance characteristics of round tube and plate fin heat transfer surfaces." Thesis, University of Brighton, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294103.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
2

TAVARA, DAVID IVAN MALDONADO. "NUMERICAL STUDY OF SWIRLING ROUND JET IMPINGING ON A HEATED PLATE." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2011. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=18103@1.

Повний текст джерела
Анотація:
COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR
Escoamentos espiralados incidentes em superfícies são escoamentos altamente complexos, envolvendo uma variedade grande de regimes. A previsão numérica deste tipo de escoamento pode auxiliar na compreensão dos diversos fenômenos envolvidos, o que poderá permitir o desenvolvimento de processos mais eficientes, assim como auxiliar na avaliação de modelos de turbulência. Visando avaliar o desempenho de diferentes modelos de turbulência para a previsão de um jato axi-simétrico espiralado incidindo em uma placa quente, determinou-se numericamente o escoamento com o auxílio da ferramenta computacional FLUENT, utilizando duas metodologias. A primeira baseada na média de Reynolds (RANS) e a segunda na simulação de grandes escalas (LES). Diversos modelos RANS de duas equações diferenciais foram testados, visando identificar a validade de aplicação de cada um deles através da comparação com dados experimentais disponíveis. A metodologia LES foi avaliada utilizando o modelo dinâmico de sub-malha de Smagorinsky. Apesar do alto custo, devido à necessidade de utilizar grande espaço de memória e tempo de simulação, os resultados obtidos com a metodologia LES foram significativamente superiores, uma vez que o escoamento apresenta alta anisotropia, a qual os modelos RANS apresentam dificuldade em prever.
Incident swirling jets are complex flow, which involve a large variety of regimes. The numerical prediction of this type of flow can help understand the several phenomena present, which could allow development of more efficient processes, as well as assist in the evaluation of turbulence models. Aiming to evaluate the performance of different turbulence models in the predict of an axi-symmetric swirling jet impinging to a hot plate, the flow field was determined with the computational tool FLUENT, by employing two methodologies. The first one is based on the Reynolds average (RANS) and the second one is based on the Large Eddy Simulation (LES). Several two differential equations RANS models were tested, in order to identify their range of validity, by comparing with available experimental data. The methodology LES was evaluated with the dynamic Smagorinsky sub-grid model. In spite of the high cost, due to the need of utilizing a large memory space and simulation time, the results obtained with the LES methodology were significantly superior, due to the high anisotropy of the flow, which the RANS models have difficult to predict.
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Юзбашьян, Анна Петрівна. "Інтенсифікація теплообмінних процесів в технологіях переробки вуглеводнів з використанням нерозбірних пластинчастих теплообмінників". Thesis, НТУ "ХПІ", 2017. http://repository.kpi.kharkov.ua/handle/KhPI-Press/36144.

Повний текст джерела
Анотація:
Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.17.08 – процеси та обладнання хімічної технології. – Національний технічний університет "Харківський політехнічний інститут" Міністерства освіти і науки України, Харків, 2018 р. Дисертація присвячена вирішенню актуальної науково-практичної задачі підвищення інтенсифікації процесу теплопередачі в пластинчастих теплообмінних апаратах спеціальної нерозбірної конструкції, які можуть використовуватися для рекуперації тепла нафтохімічних підприємств. Подальшого розвитку, на основі аналогії переносу тепла та імпульсу, отримав підхід щодо прогнозування теплових та гідравлічних процесів у пластинчастих теплообмінних апаратах нерозбірної конструкції зі спеціально гофрованими квадратними та заокругленими пластинами. Отримано напівемпіричну залежність для визначення тепловіддачі в каналах пластинчастих теплообмінних апаратів з урахуванням збільшення площі поверхні за рахунок гофрування та врахуванням впливу числа Прандтля. Запропоновано фізико-математичну модель, яка базується на концепції "граничного забруднення" та дозволяє встановити термічний опір забруднень поверхні теплопередачі залежно від часу для різних швидкостей потоку і температури поверхні. Розглянуто можливість застосування і виконано порівняльний аналіз двох типів нерозбірних пластинчастих теплообмінних апаратів на позиціях підігріву сирої нафти. Встановлено, що за рахунок використання пластин з різною висотою гофрування по холодній та гарячій стороні в кожухо-пластинчастих теплообмінних апаратах досягнуто ефекту вирівнювання швидкостей в каналах і зменшенню площі поверхні теплопередачі апарату. Наведено можливість використання зайвого тепла нафтопереробного заводу для опалення та гарячого водопостачання з проектуванням двадцятьох індивідуальних теплових пунктів з нерозбірними теплообмінниками.
Thesis for granting the Degree of Candidate of Technical sciences in Specialty 05.17.08 – "Processes and equipment of chemical technology". – National Technical University "Kharkiv Polytechnic Institute". Ministry of Education and Science of Ukraine, Kharkiv, 2018. The work is focused on solving the actual scientific and applied problem of the heat transfer intensification in plate heat exchangers of welded design for special applications, namely the heat recovery of flowsheets in refineries and chemical plants. The work suggests the new approaches towards estimation of heat and hydraulic behavior inside channels of plate heat exchangers with welded sealing. The proposed approach is based on the heat and momentum transfer analogy, and is applicable for corrugated plates of square and round shape. The semi-empirical correlation determining the heat transfer in the channel of plate heat exchangers, which enables to take into account the influence of the Prandtl number, is developed. A physical-and-mathematical model of fouling deposition during the time in welded plate heat exchangers is proposed based on the "threshold" fouling model concept, which allow the thermal resistance caused by fouling deposition to be predicted in time for different velocities of the flow and temperatures of eat carriers. The possible application conditions for crude oil pre-heat train are considered and welded plate heat exchangers of two types with minimal heat transfer surface area were designed for each operation position. The modification of shell-and-plate heat exchangers was proposed, applying the plates with different cross-section area of cold and hot channels, which can be used for the conditions when the flow rates for the heat carriers differs significantly. The case study of the waste heat utilization from refinery is considered. The utilization of the waste low-grade heat for the district heating and hot tap water supply is proposed, with the design of twenty individual heat sub-stations for each household using the welded plate heat exchangers.
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Юзбашьян, Анна Петрівна. "Інтенсифікація теплообмінних процесів в технологіях переробки вуглеводнів з використанням нерозбірних пластинчастих теплообмінників". Thesis, НТУ "ХПІ", 2018. http://repository.kpi.kharkov.ua/handle/KhPI-Press/36091.

Повний текст джерела
Анотація:
Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.17.08 – процеси та обладнання хімічної технології. – Національний технічний університет "Харківський політехнічний інститут" Міністерства освіти і науки України, Харків, 2018 р. Дисертація присвячена вирішенню актуальної науково-практичної задачі підвищення інтенсифікації процесу теплопередачі в пластинчастих теплообмінних апаратах спеціальної нерозбірної конструкції, які можуть використовуватися для рекуперації тепла нафтохімічних підприємств. Подальшого розвитку, на основі аналогії переносу тепла та імпульсу, отримав підхід щодо прогнозування теплових та гідравлічних процесів у пластинчастих теплообмінних апаратах нерозбірної конструкції зі спеціально гофрованими квадратними та заокругленими пластинами. Отримано напівемпіричну залежність для визначення тепловіддачі в каналах пластинчастих теплообмінних апаратів з урахуванням збільшення площі поверхні за рахунок гофрування та врахуванням впливу числа Прандтля. Запропоновано фізико-математичну модель, яка базується на концепції "граничного забруднення" та дозволяє встановити термічний опір забруднень поверхні теплопередачі залежно від часу для різних швидкостей потоку і температури поверхні. Розглянуто можливість застосування і виконано порівняльний аналіз двох типів нерозбірних пластинчастих теплообмінних апаратів на позиціях підігріву сирої нафти. Встановлено, що за рахунок використання пластин з різною висотою гофрування по холодній та гарячій стороні в кожухо-пластинчастих теплообмінних апаратах досягнуто ефекту вирівнювання швидкостей в каналах і зменшенню площі поверхні теплопередачі апарату. Наведено можливість використання зайвого тепла нафтопереробного заводу для опалення та гарячого водопостачання з проектуванням двадцятьох індивідуальних теплових пунктів з нерозбірними теплообмінниками.
Thesis for granting the Degree of Candidate of Technical sciences in Specialty 05.17.08 – "Processes and equipment of chemical technology". – National Technical University "Kharkiv Polytechnic Institute". Ministry of Education and Science of Ukraine, Kharkiv, 2018. The work is focused on solving the actual scientific and applied problem of the heat transfer intensification in plate heat exchangers of welded design for special applications, namely the heat recovery of flowsheets in refineries and chemical plants. The work suggests the new approaches towards estimation of heat and hydraulic behavior inside channels of plate heat exchangers with welded sealing. The proposed approach is based on the heat and momentum transfer analogy, and is applicable for corrugated plates of square and round shape. The semi-empirical correlation determining the heat transfer in the channel of plate heat exchangers, which enables to take into account the influence of the Prandtl number, is developed. A physical-and-mathematical model of fouling deposition during the time in welded plate heat exchangers is proposed based on the "threshold" fouling model concept, which allow the thermal resistance caused by fouling deposition to be predicted in time for different velocities of the flow and temperatures of eat carriers. The possible application conditions for crude oil pre-heat train are considered and welded plate heat exchangers of two types with minimal heat transfer surface area were designed for each operation position. The modification of shell-and-plate heat exchangers was proposed, applying the plates with different cross-section area of cold and hot channels, which can be used for the conditions when the flow rates for the heat carriers differs significantly. The case study of the waste heat utilization from refinery is considered. The utilization of the waste low-grade heat for the district heating and hot tap water supply is proposed, with the design of twenty individual heat sub-stations for each household using the welded plate heat exchangers.
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Salarinoghabi, Mostafa. "Flat and Round Singularity theory." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/55/55135/tde-09122016-101116/.

Повний текст джерела
Анотація:
We propose in this thesis a way to study deformations of plane curves that take into consideration the geometry of the curves as well as their singularities. We deal in details with local phenomena that occur generically in two-parameter families of curves. We obtain information on the inflections and vertices appearing on the deformed curves. We also obtain the configurations of the evolutes of the curves and of their deformations, and apply our results to orthogonal projections of space curves. Finally, we consider the profile (outline, apparent contour) of a smooth surface in the Euclidian 3-space. This is the image of the singular set of an orthogonal projection of the surface. The profile is a plane curve and may have singularities. We study the changes in the geometry of the profile as the direction of projection changes locally in the unit sphere.
Propomos nesta tese um método para estudar deformações de curvas planas que leva em consideração a geometria delas, bem como as suas singularidades. Consideramos em detalhes os fenômenos locais que ocorrem genericamente em famílias de curvas com dois parâmetros. Obtemos informações sobre as inflexões e vértices que aparecem nas curvas deformadas. Obtemos também as configurações das evolutas das curvas e das suas deformações e aplicamos os nossos resultados nas projeções ortogonais de curvas espaciais. Finalmente, consideramos o perfil de uma superfície regular no espaço Euclidiano R3. O perfil é a imagem do conjunto singular de uma projeção ortogonal da superfície, esta é uma curva plana e pode ter singularidades. Estudamos as alterações na geometria do perfil quando a direção de projeção muda localmente na esfera unitária.
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Theron, Michelle. "The influence of fine platy particles on the behaviour of a rotund sand." Thesis, University of Southampton, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.412218.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Zillinger, Malin. "Guided tourism : the role of guidebooks in German tourist behaviour in Sweden." Doctoral thesis, Östersund : Umeå : European Tourism Research Institute (ETOUR) ; Department of Social and Economic Geography, Umeå University, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-1436.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
8

Klavetter, Sean Robert. "Internal crossflow effects on turbine airfoil film cooling adiabatic effectiveness with compound angle round holes." Thesis, 2014. http://hdl.handle.net/2152/26324.

Повний текст джерела
Анотація:
Internal crossflow is an important element to actual gas turbine blade cooling; however, there are very few studies in open literature that have documented its effects on turbine blade film cooling. Experiments measuring adiabatic effectiveness were conducted to investigate the effects of perpendicular crossflow on a row of 45 degree compound angle, cylindrical film cooling holes. Tests included a standard plenum condition, a baseline crossflow case consisting of a smooth-walled channel, and various crossflow configurations with ribs. The ribs were angled to the direction of prevailing internal crossflow at 45 and 135 degrees and were positioned at different locations. Experiments were conducted at a density ratio of DR=1.5 for a range of blowing ratios including M=0.5, 0.75, 1.0, 1.5, and 2.0. Results showed that internal crossflow can significantly influence adiabatic effectiveness when compared to the standard plenum condition. The implementation of ribs generally decreased the adiabatic effectiveness when compared to the smooth-walled crossflow case. The highest adiabatic effectiveness measurements were recorded for the smooth-walled case in which crossflow was directed against the spanwise hole orientation angle. Tests indicated that the direction of perpendicular crossflow in relation to the hole orientation can significantly influence the adiabatic effectiveness. Among the rib crossflow tests, rib configurations that directed the coolant forward in the direction of the mainstream resulted in higher adiabatic effectiveness measurements. However, no other parameters could consistently be identified correlating to increased film cooling performance. It is likely that a combination of factors are responsible for influencing performance, including internal local pressure caused by the ribs, the internal channel flow field, jet exit velocity profiles, and in-hole vortices.
text
Стилі APA, Harvard, Vancouver, ISO та ін.
9

Dadhiala, Navdeep Singh. "Quasi-static strengths and failure modes of tight-fitting and round-end metal-plate wooden truss joints." 2007. http://link.library.utoronto.ca/eir/EIRdetail.cfm?Resources__ID=452883&T=F.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
10

Онопрієнко, Антон Андрійович. "Аналітико-чисельний метод розв’язання задач статики круглих пластин складної конфігурації". Магістерська робота, 2020. https://dspace.znu.edu.ua/jspui/handle/12345/1981.

Повний текст джерела
Анотація:
Онопрієнко А. А. Аналітико-чисельний метод розв’язання задач статики круглих пластин складної конфігурації : кваліфікаційна робота магістра спеціальності 113 "Прикладна математика" / наук. керівник В. З. Грищак. Запоріжжя : ЗНУ, 2020. 78 с.
UA : Робота викладена на 78 сторінках друкованого тексту, містить 12 рисунків, 7 таблиць, 45 джерел, 2 додатки. Об’єкт дослідження: статичне деформування складених круглих пластин. Мета роботи: дослідити статичне деформування складених круглих пластин при змішаних крайових умовах. Метод дослідження: аналітичний, чисельний. У кваліфікаційній роботі досліджуються напружено-деформований стан складних круглих пластин при змішаних крайових умовах та різних варіантах навантаження. Розглянуто клас круглих пластин дискретно-змінної товщини. Розв’язано задачу про визначення статичного деформування такої пластини, яка знаходиться під дією зовнішнього нормального навантаження. Застосовано асимптотичний метод до розв’язування напружено-деформованого стану круглих пластин змінної жорсткості.
EN : The work is presented on 78 pages of printed text, 12 figures, 7 tables, 45 references, 2 supplements. The object of study is the research of the static deformation of composite circular plates. The aim of study is the research is to investigate the static deformation of composite circular plates under mixed boundary conditions. The method of research is analytical, numerical. Stress-deformed state of complex circular plates under the mixed boundary conditions and different loading variants are investigated in the qualification work. The class of circular plates of discrete-variable thickness are considered studied. The problem of determining the static deformation of such a plate, which is under the influence of the external normal load, is reviewed dealt with. Also, the asymptotic method has been stitched to the release of a strained-deformed mill of circular plates of varying degrees of rigidity.
Стилі APA, Harvard, Vancouver, ISO та ін.

Книги з теми "Round plate"

1

Susan, Greenstein, ed. Pass port on a plate: A round-the-world cookbook for children. New York: Simon & Schuster For Young Readers, 1997.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Hust, J. G. Round-robin measurements of the apparent thermal conductivity of two refractory insulation materials, using high-temperature guarded-hot-plate apparatus. [Washington, D.C.]: U.S. Dept. of Commerce, National Bureau of Standards, 1988.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Hust, J. G. Round-robin measurements of the apparent thermal conductivity of two refractory insulation materials, using high-temperature guarded-hot-plate apparatus. [Washington, D.C.]: U.S. Dept. of Commerce, National Bureau of Standards, 1988.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Hust, J. G. Round-robin measurements of the apparent thermal conductivity of two refractory insulation materials, using high-temperature guarded-hot-plate apparatus. [Washington, D.C.]: U.S. Dept. of Commerce, National Bureau of Standards, 1988.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Hust, J. G. Round-robin measurements of the apparent thermal conductivity of two refractory insulation materials, using high-temperature guarded-hot-plate apparatus. [Washington, D.C.]: U.S. Dept. of Commerce, National Bureau of Standards, 1988.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Hust, J. G. Round robins on the apparent thermal conductivity of low-density glass fiber insulations using guarded hot plate and heat flow meter apparatus. [Washington, D.C.]: U.S. Dept. of Commerce, National Bureau of Standards, 1985.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Hust, J. G. Round robins on the apparent thermal conductivity of low-density glass fiber insulations using guarded hot plate and heat flow meter apparatus. [Washington, D.C.]: U.S. Dept. of Commerce, National Bureau of Standards, 1985.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
8

McGraw, Eloise Jarvis. Merry go round in Oz. New York: Books of Wonder, 1992.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
9

Kevin, Grantham A., ed. Round-engine racers: Bearcats & Corsairs. North Branch, MN: Specialty Press Publishers and Wholesalers, 2002.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
10

Bryant, John. How round is your circle?: Where engineering and mathematics meet. Princeton: Princeton University Press, 2008.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
Більше джерел

Частини книг з теми "Round plate"

1

Saha, Sujoy Kumar, Hrishiraj Ranjan, Madhu Sruthi Emani, and Anand Kumar Bharti. "Round Tubes Having Plain-Plate Fins." In Heat Transfer Enhancement in Externally Finned Tubes and Internally Finned Tubes and Annuli, 7–30. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-20748-9_2.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Saha, Sujoy Kumar, Hrishiraj Ranjan, Madhu Sruthi Emani, and Anand Kumar Bharti. "Enhanced Plate Fin Geometries with Round Tubes and Enhanced Circular Fin Geometries." In Heat Transfer Enhancement in Externally Finned Tubes and Internally Finned Tubes and Annuli, 39–67. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-20748-9_4.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Comte, P., Y. Dubief, C. Brun, M. Meinke, C. Schulz, and Th Rister. "Simulation of Spatially Developing Plane and Round Jets." In Numerical Flow Simulation I, 301–18. Berlin, Heidelberg: Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/978-3-540-44437-4_15.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Comte, P., Y. Dubief, C. Brun, M. Meinke, C. Schulz, and Th Rister. "Simulation of Spatially Developing Plane and Round Jets." In Notes on Numerical Fluid Mechanics (NNFM), 301–18. Wiesbaden: Vieweg+Teubner Verlag, 1998. http://dx.doi.org/10.1007/978-3-663-10916-7_15.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Kozlov, Victor V., Genrich R. Grek, and Yury A. Litvinenko. "Subsonic Round and Plane Macro- and Microjet in a Transverse Acoustic Field." In Visualization of Conventional and Combusting Subsonic Jet Instabilities, 87–104. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-26958-0_8.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Rahman, Md Zamilur, Udayamoorthy Navaneetha Krishnan, Cory Jeane, Asish Mukhopadhyay, and Yash P. Aneja. "A Distance Matrix Completion Approach to 1-Round Algorithms for Point Placement in the Plane." In Lecture Notes in Computer Science, 97–114. Berlin, Heidelberg: Springer Berlin Heidelberg, 2018. http://dx.doi.org/10.1007/978-3-662-58039-4_6.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Robinson, Lucy, and Peter Webb. "‘A Different Vibe and a Different Place’: Re-telling the Riots – A Round Table Discussion." In Youth Culture and Social Change, 101–16. London: Palgrave Macmillan UK, 2017. http://dx.doi.org/10.1057/978-1-137-52911-4_5.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
8

Rahman, Md Zamilur, Asish Mukhopadhyay, Yash Pal Aneja, and Cory Jean. "A Distance Matrix Completion Approach to 1-Round Algorithms for Point Placement in the Plane." In Computational Science and Its Applications – ICCSA 2017, 494–508. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-62395-5_34.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
9

Valvoda, V., D. Rafaja, and R. Jenkins. "Results of X-Ray Powder Diffraction Round Robin Tests with Corundum Plates and Powder Samples." In Advances in X-Ray Analysis, 571–77. Boston, MA: Springer US, 1997. http://dx.doi.org/10.1007/978-1-4615-5377-9_62.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
10

Blangiardo, Gian Carlo. "Il fenomeno migratorio secondo i dati statistici." In Migrazioni in Italia: oltre la sfida, 31–40. Florence: Firenze University Press, 2021. http://dx.doi.org/10.36253/978-88-6453-965-2.03.

Повний текст джерела
Анотація:
A thorough understanding of the reality of migration is the best way to manage it and seize its value. For it, statistical data, can help do just that: they show that the foreign presence in Italy has not undergone major variations in recent years. A major part has been played by recent Italian citizenship acquisitions; and this takes place, paradoxically, while there is a much lamented lack of legislation and changes are invoked all round. Future perspectives seem to confirm, at least in the short term, a certain stability, generated by a weak attractiveness for “traditional” immigration and a significant maturation of older immigration components, accompanied by changes in status.
Стилі APA, Harvard, Vancouver, ISO та ін.

Тези доповідей конференцій з теми "Round plate"

1

Kharoua, N., L. Khezzar, and Z. Nemouchi. "Large Eddy Simulation of Multiple Round Impinging Jets." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-65824.

Повний текст джерела
Анотація:
Large eddy simulation of flow and heat transfer of multiple turbulent round jets in an in-line array impinging on a flat plate is conducted. The full geometry is used in the simulation of the 9 jets. To capture the interactions between the jets the full geometry is meshed in this work. The Reynolds number based on the nozzle diameter of 13 mm, jet initial average velocity of 23.88 m/s and properties of air at room temperature was equal to 20,000. The computations of the mean vertical and horizontal component of the velocity vector in selected planes show very good agreement with experiments. The flow behavior of the jets agrees with experimental findings in terms of vortices surrounding the jets and the appearance of the asymmetry on and close to the flat impingement plane. The predicted mean surface Nusselt number on the flat heated plate shows also excellent agreement with experiments and a relative maximum between the jets in the region of the upwash fountain flow where the wall jets collide, not seen in the experiments, is captured by the numerics.
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Tristanto, Indi, and Gary Page. "Unsteady Impingement of a Supersonic Round Jet on a Flat Plate." In 35th AIAA Fluid Dynamics Conference and Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2005. http://dx.doi.org/10.2514/6.2005-5151.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Yokoi, Yoshifumi. "Numerical Experiment of Flow around a Flat Plate with Round Edges." In 2019 IEEE 10th International Conference on Mechanical and Aerospace Engineering (ICMAE). IEEE, 2019. http://dx.doi.org/10.1109/icmae.2019.8880983.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Brazier, Jean-Philippe. "Local stability analysis of a round jet parallel to a flat plate." In 22nd AIAA/CEAS Aeroacoustics Conference. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2016. http://dx.doi.org/10.2514/6.2016-2733.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Harmon, Weston V., Lesley M. Wright, Daniel C. Crites, Mark C. Morris, and Ardeshir Riahi. "Combined Effects of Jet Plate Thickness and Fillet Radius on Leading Edge Jet Impingement With Round and Racetrack Shaped Jets." In ASME Turbo Expo 2015: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/gt2015-43505.

Повний текст джерела
Анотація:
The effect of jet plate thickness is considered as regionally averaged Nusselt numbers are measured on a concave surface, which models the leading edge of modern gas turbine blades. The performance of both round and racetrack shaped orifices for leading edge impingement is considered. Regionally averaged heat transfer coefficient distributions are obtained in a steady state experiment using heated aluminum plates. From this traditional heat transfer technique, the heat transfer afforded by jet plates of varying thickness is quantified. The thickness of the jet plate is varied from 1.33 to 4.0 diameters (for both the round and racetrack shaped jets). To model the modern, cast airfoil, the effect of an inlet and outlet radius on the jet orifice is also investigated. For all cases, the jet – to – target surface spacing (z/djet) is 4, the jet – to – jet spacing (s/djet) is 8, and the target surface diameter – to jet diameter (D/djet) is 5.33. Target surface Nusselt numbers are obtained for three separate Reynolds numbers. For the round orifices, jet Reynolds numbers of 14,000, 28,100, and 42,100 are used while the corresponding Reynolds numbers for the racetrack shaped jets are 11,800, 23,600, and 35,400. Although the Reynolds number is reduced for the racetrack shaped jets, the mass flow through each jet remains constant (from the round to the racetrack jets). The Nusselt numbers measured in the stagnation region of the target surface are relatively insensitive to the jet plate thickness. For all cases considered, the flow is not developed as it exits the orifice, so the flow structures of the jets ensuing from each of the plates are similar. When the inlet of the jet is rounded, the vena contracta effect within the orifice is minimized, and a more symmetrical jet develops within the orifice. For a fixed flow rate, the racetrack shaped jets provide enhanced heat transfer compared to the round jets for all geometries considered.
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Hattori, Yasuo, and Hitoshi Suto. "Turbulence Characteristics in a Natural Convection Boundary Layer Above a Heated Round Plate." In 2010 14th International Heat Transfer Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ihtc14-23001.

Повний текст джерела
Анотація:
A turbulent natural-convection boundary layer in air near the upper surface of a heated round plate is experimentally investigated. The heated round plate, the diameter of which is 300 mm, is horizontally placed in a test section of chamber. The upper-surface temperature is 473 K. Instantaneous temperature and two-dimensional velocity vectors near the upper surface are measured by using a cold wire and a particle image velocimetry, respectively. The measurements reveal a multi-layer structure near the upper surface. In the lower layer, velocity fluctuation of horizontal component is active compared with that of vertical component. This intermittently causes the incursion of low temperature fluids. On the other hand, in the upper layer, the intensity of vertical velocity fluctuation with high temperature fluid is much larger than that of horizontal velocity fluctuation. This multi-layer structure is mainly generated by the large-scale fluid motions, such as winding of high temperature fluids and entrainment of low temperature fluids.
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Zhao, J. B., Y. T. Chew, and B. C. Khoo. "Experimental Studies on Hydrodynamic Resistance and Flow Pattern of a Narrow Flow Channel With Dimples on the Wall." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-59506.

Повний текст джерела
Анотація:
A systematic flow visualization study on flow structures inside dimples with different relative depths (h/d) and with round or sharp edges is carried out in the first part of this investigation; three flat test plates are made and each one has two dimples with the same print diameter (d) at 40 mm and the same h/d, which is set at 4%, 20% and 50% respectively. Then friction factor is measured on a test channel with two types of test plates. One has dimples array with h/d at 4% and round edge and the second is a flat plate used as reference; surface roughness can be changed for both test plates by painting and covering with water-proof paper. Flow visualization is also done on a dimple located at the center of the plate in the channel. Results show that shallow dimple (h/d=4%) produces non-separated flows at Reynolds number Reδ<1000 and there exists a rather small separation cavity flow at Reynolds number Reδ>1500. Dimple with h/d at 20% produces two symmetric vortices at Reδ<850, single vortex at Reδ ≈ 1000–1600 and symmetric horseshoe-liked vortex at Reδ>1700. Round edged dimple changes its fl pattern at different Reynolds number comparing to its sharp edged counterpart. For the dimple with h/d at 50%, at Reδ <1200 there is only one stable vortex; at Reδ>1800, it is unstable with its rotating direction changing frequently. In this part of preliminary work, dimpled plate with roughness reduces the friction factor by at least 2% in the flow channel comparing to the reference plate at Reynolds number ReDh ≈ 8,500~24,000. The friction factor curve of the channel with roughened dimpled plate approaches a hydraulically smooth channel with the increase of Reynolds number. No increase in friction factor is observed on the channel with dimpled plate having smooth surface in the comparison to the reference channel without dimples.
Стилі APA, Harvard, Vancouver, ISO та ін.
8

Sharma, Avadhesh Kumar, Mayank Modak, and Santosh K. Sahu. "Rewetting Analysis of Hot Moving Surface by Round Water Jet Impingement." In 2018 26th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/icone26-81673.

Повний текст джерела
Анотація:
Impinging jets are commonly utilized in the run-out table (ROT) cooling in the hot rolling process in steel manufacturing industries. The phenomenon of rapid cooling of a sufficiently hot surface is termed as the quenching. The present paper reports the rewetting behavior of 0.15 mm thick hot moving stainless steel foil (SS-304) by circular impinging jet from bottom side through experimental investigation. The transient temperature of the hot foil is recorded by using thermal imaging camera (A655sc, FLIR system). Tests are performed for a varied range of Reynolds number (Re = 2500–10000), nozzle to plate distance (z/d = 6), moving plate velocity (0–40 mm/s) and initial surface temperature 500±10 °C. Transient temperature obtained from thermal imaging camera is used to evaluate rewetting time and rewetting velocity. Based on the experimental investigation correlation has been proposed to predict non-dimensional rewetting velocity as a function of various parameters, namely, Reynolds number, non-dimensional axial distance and moving plate velocity.
Стилі APA, Harvard, Vancouver, ISO та ін.
9

Shademan, Mehrdad, Vesselina Roussinova, Ron Barron, and Ram Balachandar. "Large Eddy Simulation of Round Impinging Jets With Large Stand-Off Distance." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-37194.

Повний текст джерела
Анотація:
Large Eddy Simulation (LES) has been carried out to study the flow of a turbulent impinging jet with large nozzle height-to-diameter ratio. The dynamic Smagorinsky model was used to simulate the subgrid-scale stresses. The jet exit Reynolds number is 28,000. The study presents a detailed evaluation of the flow characteristics of an impinging jet with nozzle height of 20 diameters above the plate. Results of the mean normalized centerline velocity and wall shear stress show good agreement with previous experiments. Analysis of the flow field shows that vortical structures generated due to the Kelvin-Helmholtz instabilities in the shear flow close to the nozzle undergo break down or merging when moving towards the plate. Unlike impinging jets with small stand-off distance where the ring-like vortices keep their interconnected shape upon reaching the plate, no sign of interconnection was observed on the plate for this large stand-off distance. A large deflection of the jet axis was observed for this type of impinging jet when compared to the cases with small nozzle height-to-diameter ratios.
Стилі APA, Harvard, Vancouver, ISO та ін.
10

Jones, D. P., and S. A. Adams. "Fatigue Analysis Round Robin of Nozzle-to-Plate Juncture: Results of Analytic-Test Comparison." In ASME 2008 Pressure Vessels and Piping Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/pvp2008-61541.

Повний текст джерела
Анотація:
The ASME Boiler and Pressure Vessel Code (B&PV) Committee, Subgroup on Design Analysis, established the Task Force on Elastic-Plastic Finite Element Analysis (TF-EP-FEA) to investigate how to use EP-FEA to assess ASME B&PV Code stress limits. This paper presents results of an investigation by the TF-EP-FEA to apply EP-FEA to predict cyclic life of a nozzle-to-plate juncture tested by DeJesus et al. [1]. EP-FEA results are compared to fatigue test results for four specimens cyclically loaded from zero to maximum load. An analytical exercise was defined such that the round-robin participants were to calculate the cyclic life of the nozzle-to-plate fatigue specimens two ways; by using ASME B&PV Code with elastic methods and by using an EP-FEA program. The results and techniques used by the investigators are compared and conclusions are reached regarding which method correlated best for this problem. Commonalties in the approaches are listed so that they may be used to develop general guidelines for use of elastic-plastic FEA to show satisfaction of the fatigue design rules of the ASME B&PV Code.
Стилі APA, Harvard, Vancouver, ISO та ін.

Звіти організацій з теми "Round plate"

1

Borchardt, B. Recent results of the NIST national ball plate round robin. Gaithersburg, MD: National Institute of Standards and Technology, 1993. http://dx.doi.org/10.6028/nist.ir.5218.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Hust, Jerome G., and David R. Smith. Round-robin measurements of the apparent thermal conductivity of two refractory insulation materials, using high-temperature guarded-hot-plate apparatus. Gaithersburg, MD: National Bureau of Standards, 1988. http://dx.doi.org/10.6028/nbs.ir.88-3087.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Hust, J. G., and C. M. Pelanne. Round robins on the apparent thermal conductivity of low-density glass fiber insulations using guarded hot plate and heat flow meter apparatus. Gaithersburg, MD: National Bureau of Standards, 1985. http://dx.doi.org/10.6028/nbs.ir.85-3026.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Bagwell, Kyle, and Robert Staiger. Can the Doha Round be a Development Round? Setting a Place at the Table. Cambridge, MA: National Bureau of Economic Research, December 2011. http://dx.doi.org/10.3386/w17650.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Aromolaran, Adebayo, and Milu Muyanga. Impact of COVID-19 on Food Systems and Rural Livelihoods in Nigeria – Round 2 Report. Institute of Development Studies (IDS), December 2020. http://dx.doi.org/10.19088/apra.2020.019.

Повний текст джерела
Анотація:
This study provides insights from a second survey assessing COVID-19 impacts on agricultural commercialisation, food and nutrition security, labour and employment, and well-being in rural Nigeria. Data for round 2 (R2) were collected between September and October 2020, from 109 households that were interviewed in mid-July (R1). Households were drawn from a stratified random sample from three Local Government Areas in Ogun State and two in Kaduna State. This survey data is complemented by insights from seven in-depth key informant interviews. This analysis compares COVID-19 effects in the second quarter and the third quarter of 2020, which corresponds to the first and second 3-month periods after Nigeria’s countrywide lockdown was put in place.
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Olwande, John, and Miltone Ayieko. Impact of COVID-19 on Food Systems and Rural Livelihoods in Kenya – Round 2 Report. Institute of Development Studies (IDS), December 2020. http://dx.doi.org/10.19088/apra.2020.017.

Повний текст джерела
Анотація:
Since 12 March 2020, when Kenya reported the first COVID-19 cases, the Ministry of Health confirmed a total of 45,076 cases and 839 deaths, as of 19 October.1 Despite the rising number of COVID-19 confirmed infections and deaths in Kenya during the third quarter (Q3) of 2020, the national and county governments relaxed some of the restrictions that had been in place during Q2 aimed at controlling the spread of COVID-19. This assessment was aimed at understanding the effects of COVID-19 at household level and attendant policy responses during Q3 of 2020, to inform actions to assure protection of local food systems, rural livelihoods and the supply of adequate, affordable food of acceptable quality to the population.
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Salazar, Lina, Ana Claudia Palacios, Michael Selvaraj, and Frank Montenegro. Using Satellite Images to Measure Crop Productivity: Long-Term Impact Assessment of a Randomized Technology Adoption Program in the Dominican Republic. Inter-American Development Bank, September 2021. http://dx.doi.org/10.18235/0003604.

Повний текст джерела
Анотація:
This study combines three rounds of surveys with remote sensing to measure long-term impacts of a randomized irrigation program in the Dominican Republic. Specifically, Landsat 7 and Landsat 8 satellite images are used to measure the causal effects of the program on agricultural productivity, measured through vegetation indices (NDVI and OSAVI). To this end, 377 plots were analyzed (129 treated and 248 controls) for the period from 2011 to 2019. Following a Differencein-Differences (DD) and Event study methodology, the results confirmed that program beneficiaries have higher vegetation indices, and therefore experienced a higher productivity throughout the post-treatment period. Also, there is some evidence of spillover effects to neighboring farmers. Furthermore, the Event Study model shows that productivity impacts are obtained in the third year after the adoption takes place. These findings suggest that adoption of irrigation technologies can be a long and complex process that requires time to generate productivity impacts. In a more general sense, this study reveals the great potential that exists in combining field data with remote sensing information to assess long-term impacts of agricultural programs on agricultural productivity.
Стилі APA, Harvard, Vancouver, ISO та ін.
8

Yatsymirska, Mariya. SOCIAL EXPRESSION IN MULTIMEDIA TEXTS. Ivan Franko National University of Lviv, February 2021. http://dx.doi.org/10.30970/vjo.2021.49.11072.

Повний текст джерела
Анотація:
The article investigates functional techniques of extralinguistic expression in multimedia texts; the effectiveness of figurative expressions as a reaction to modern events in Ukraine and their influence on the formation of public opinion is shown. Publications of journalists, broadcasts of media resonators, experts, public figures, politicians, readers are analyzed. The language of the media plays a key role in shaping the worldview of the young political elite in the first place. The essence of each statement is a focused thought that reacts to events in the world or in one’s own country. The most popular platform for mass information and social interaction is, first of all, network journalism, which is characterized by mobility and unlimited time and space. Authors have complete freedom to express their views in direct language, including their own word formation. Phonetic, lexical, phraseological and stylistic means of speech create expression of the text. A figurative word, a good aphorism or proverb, a paraphrased expression, etc. enhance the effectiveness of a multimedia text. This is especially important for headlines that simultaneously inform and influence the views of millions of readers. Given the wide range of issues raised by the Internet as a medium, research in this area is interdisciplinary. The science of information, combining language and social communication, is at the forefront of global interactions. The Internet is an effective source of knowledge and a forum for free thought. Nonlinear texts (hypertexts) – «branching texts or texts that perform actions on request», multimedia texts change the principles of information collection, storage and dissemination, involving billions of readers in the discussion of global issues. Mastering the word is not an easy task if the author of the publication is not well-read, is not deep in the topic, does not know the psychology of the audience for which he writes. Therefore, the study of media broadcasting is an important component of the professional training of future journalists. The functions of the language of the media require the authors to make the right statements and convincing arguments in the text. Journalism education is not only knowledge of imperative and dispositive norms, but also apodictic ones. In practice, this means that there are rules in media creativity that are based on logical necessity. Apodicticity is the first sign of impressive language on the platform of print or electronic media. Social expression is a combination of creative abilities and linguistic competencies that a journalist realizes in his activity. Creative self-expression is realized in a set of many important factors in the media: the choice of topic, convincing arguments, logical presentation of ideas and deep philological education. Linguistic art, in contrast to painting, music, sculpture, accumulates all visual, auditory, tactile and empathic sensations in a universal sign – the word. The choice of the word for the reproduction of sensory and semantic meanings, its competent use in the appropriate context distinguishes the journalist-intellectual from other participants in forums, round tables, analytical or entertainment programs. Expressive speech in the media is a product of the intellect (ability to think) of all those who write on socio-political or economic topics. In the same plane with him – intelligence (awareness, prudence), the first sign of which (according to Ivan Ogienko) is a good knowledge of the language. Intellectual language is an important means of organizing a journalistic text. It, on the one hand, logically conveys the author’s thoughts, and on the other – encourages the reader to reflect and comprehend what is read. The richness of language is accumulated through continuous self-education and interesting communication. Studies of social expression as an important factor influencing the formation of public consciousness should open up new facets of rational and emotional media broadcasting; to trace physical and psychological reactions to communicative mimicry in the media. Speech mimicry as one of the methods of disguise is increasingly becoming a dangerous factor in manipulating the media. Mimicry is an unprincipled adaptation to the surrounding social conditions; one of the most famous examples of an animal characterized by mimicry (change of protective color and shape) is a chameleon. In a figurative sense, chameleons are called adaptive journalists. Observations show that mimicry in politics is to some extent a kind of game that, like every game, is always conditional and artificial.
Стилі APA, Harvard, Vancouver, ISO та ін.
Також вас можуть зацікавити розширені добірки на тему "Round plate" для конкретних типів джерел:
Статті в журналах Книги
Ми пропонуємо знижки на всі преміум-плани для авторів, чиї праці увійшли до тематичних добірок літератури. Зв'яжіться з нами, щоб отримати унікальний промокод!

До бібліографії