1,637 research outputs found

    Micro- and Nanocapillary Structures Based on Dielectric Materials to Focus the Ion Beams

    Get PDF
    The 255 keV and 150 keV proton beams transmission through tapered glass capillaries with 10 ΞΌm and 5 ΞΌm outlet diameters, respectively, were studied. The dependence of the output current on input current and the dependence of coefficient of proton beam transmission through capillary on the tilt angle of the capillary with respect to the beam axis were investigated. The focusing and guiding effects for transmitted proton beams were observed. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3521

    Peculiarities of proton transmission through tapered glass capillaries

    Get PDF
    A study of the 150–320 keV proton beam transmission through tapered glass (borosilicate) capillaries with different diameters of the input and output of the capillary was performed. The focusing effect was observed. The areal density of the transmitted beam is enhanced by approximately 20 times. It was shown that changing a taper angle from 0.5 deg to 1.7 deg evidences increase of the transmission coefficient by more than 300 times keeping the initial energy spectrum of ions. The ion transmission through self-ordered nanoporous alumina membranes prepared by anodic oxidation of high-purity aluminium was studied for different energies of ions

    Peculiarities of proton transmission through tapered glass capillaries

    Get PDF
    A study of the 150–320 keV proton beam transmission through tapered glass (borosilicate) capillaries with different diameters of the input and output of the capillary was performed. The focusing effect was observed. The areal density of the transmitted beam is enhanced by approximately 20 times. It was shown that changing a taper angle from 0.5 deg to 1.7 deg evidences increase of the transmission coefficient by more than 300 times keeping the initial energy spectrum of ions. The ion transmission through self-ordered nanoporous alumina membranes prepared by anodic oxidation of high-purity aluminium was studied for different energies of ions

    Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ исслСдований влияния биоэнСргСтичСских Ρ„Π°ΠΊΡ‚ΠΎΡ€ΠΎΠ² Π½Π° ΠΏΠΎΠ²Ρ‹ΡˆΠ΅Π½ΠΈΠ΅ уроТайности Π² растСниСводствС

    Get PDF
    The results of a fundamental research is presented confirming two hypotheses concerning the process of a crop harvestΒ forming and transpiration as the two main bio-energetic factors of fertility. Transpiration is a thermodynamic process inΒ an open self-organizing system, which has a dissipative random character. Transpiration consumes about 95 percent of theΒ water consumed by the plant. (Purpose of research) The research objective is to obtain results confirming two hypotheses, according to which the efficiency of the process of crop formation is due to transpiration as a bio-energy factor of fertility and its components: photosynthetic exergy and thermal exergy. (Methods and materials) The basic principles of thermodynamic systems self-organization, as well as methods of experimental studies of the principle of subordination to the parameter of the order in which the system control variable is dependent on parameter of the order. The relation of the order parameter (thermal exergy of solar radiation (SR)) and the variable control (transpiration) was determined. The values of the correlation coefficients of these two processes have a value close to one. This confirms that transpiration is a dissipative self-organizing process underlying the transpiration irrigation mechanism. It is revealed that a fractal dimension of a time series of transpiration of cucumber with natural light, a potato is artificial, and their probability haracteristics: the mathematical expectation, standard deviation and variance. (Results and discussion) We received confirmation of the scientific hypothesis about the influence of limiting climatic factors on the theoretical limit of plant productivity and fractal dimension of transpiration as an indicator of production processes in crop production. (Conclusions) We put forward supplemental scientific hypothesis about the influence of limiting climatic factors on the theoretical limit of plant productivity. It was showed that under artificial light intensity of shoots of potatoes fractal dimension is equal to 1.1, and the variance of the temporary random number of transpiration series decreased more than 6 times compared to the same time series under natural light of SRΠŸΡ€ΠΈΠ²Π΅Π΄Π΅Π½Ρ‹ прСдпосылки ΠΈ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ Ρ„ΡƒΠ½Π΄Π°ΠΌΠ΅Π½Ρ‚Π°Π»ΡŒΠ½Ρ‹Ρ… исслСдований, ΠΏΠΎΠ΄Ρ‚Π²Π΅Ρ€ΠΆΠ΄Π°ΡŽΡ‰ΠΈΠ΅ Π΄Π²Π΅ Π³ΠΈΠΏΠΎΡ‚Π΅Π·Ρ‹, ΠΊΠ°ΡΠ°ΡŽΡ‰ΠΈΠ΅ΡΡ процСсса формирования уроТая ΠΈ транспирации ΠΊΠ°ΠΊ основного биоэнСргСтичСского Ρ„Π°ΠΊΡ‚ΠΎΡ€Π° плодородия. Вранспирация Π΅ΡΡ‚ΡŒ тСрмодинамичСский процСсс Π² ΠΎΡ‚ΠΊΡ€Ρ‹Ρ‚ΠΎΠΉ ΡΠ°ΠΌΠΎΠΎΡ€Π³Π°Π½ΠΈΠ·ΡƒΡŽΡ‰Π΅ΠΉΡΡ систСмС, носящий диссипативный случайный Ρ…Π°Ρ€Π°ΠΊΡ‚Π΅Ρ€. На Ρ‚Ρ€Π°Π½ΡΠΏΠΈΡ€Π°Ρ†ΠΈΡŽ расходуСтся ΠΎΠΊΠΎΠ»ΠΎ 95 ΠΏΡ€ΠΎΡ†Π΅Π½Ρ‚ΠΎΠ² потрСбляСмой растСниСм Π²ΠΎΠ΄Ρ‹. (ЦСльисслСдования) ΠŸΠΎΠ»ΡƒΡ‡ΠΈΡ‚ΡŒ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹, ΠΏΠΎΠ΄Ρ‚Π²Π΅Ρ€ΠΆΠ΄Π°ΡŽΡ‰ΠΈΠ΅ Π΄Π²Π΅ Π³ΠΈΠΏΠΎΡ‚Π΅Π·Ρ‹, согласно ΠΊΠΎΡ‚ΠΎΡ€Ρ‹ΠΌ ΡΡ„Ρ„Π΅ΠΊΡ‚ΠΈΠ²Π½ΠΎΡΡ‚ΡŒ процСсса формирования уроТая обусловлСна: транспирациСй ΠΊΠ°ΠΊ биоэнСргСтичСским Ρ„Π°ΠΊΡ‚ΠΎΡ€ΠΎΠΌ плодородия, фотосинтСзной эксСргиСй ΠΈ Ρ‚Π΅ΠΏΠ»ΠΎΠ²ΠΎΠΉ эксСргиСй. (ΠœΠ΅Ρ‚ΠΎΠ΄Ρ‹ ΠΈ ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Ρ‹) РассмотрСны основныС ΠΏΡ€ΠΈΠ½Ρ†ΠΈΠΏΡ‹ самоорганизации тСрмодинамичСских систСм, Π° Ρ‚Π°ΠΊΠΆΠ΅ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹ ΡΠΊΡΠΏΠ΅Ρ€ΠΈΠΌΠ΅Π½Ρ‚Π°Π»ΡŒΠ½Ρ‹Ρ… исслСдований ΠΏΡ€ΠΈΠ½Ρ†ΠΈΠΏΠ° подчинСния ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€Ρƒ порядка, ΠΏΡ€ΠΈ ΠΊΠΎΡ‚ΠΎΡ€ΠΎΠΌ пСрСмСнная управлСния систСмы ΠΏΠΎΠ΄Ρ‡ΠΈΠ½Π΅Π½Π° ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€Ρƒ порядка. ΠžΠΏΡ€Π΅Π΄Π΅Π»ΠΈΠ»ΠΈ связь парамСтра порядка (тСпловая эксСргия солнСчного излучСния (БИ)) ΠΈ ΠΏΠ΅Ρ€Π΅ΠΌΠ΅Π½Π½ΠΎΠΉ управлСния (транспирация). ЗначСния коэффициСнтов коррСляции этих Π΄Π²ΡƒΡ… процСссов ΠΈΠΌΠ΅ΡŽΡ‚ Π²Π΅Π»ΠΈΡ‡ΠΈΠ½Ρƒ, Π±Π»ΠΈΠ·ΠΊΡƒΡŽ ΠΊ Π΅Π΄ΠΈΠ½ΠΈΡ†Π΅. Π­Ρ‚ΠΎ ΠΏΠΎΠ΄Ρ‚Π²Π΅Ρ€ΠΆΠ΄Π°Π΅Ρ‚, Ρ‡Ρ‚ΠΎ транспирация Π΅ΡΡ‚ΡŒ диссипативный ΡΠ°ΠΌΠΎΠΎΡ€Π³Π°Π½ΠΈΠ·ΡƒΡŽΡ‰ΠΈΠΉΡΡ процСсс, Π»Π΅ΠΆΠ°Ρ‰ΠΈΠΉ Π² основС ΠΌΠ΅Ρ…Π°Π½ΠΈΠ·ΠΌΠ° транспирационного ΠΎΡ€ΠΎΡˆΠ΅Π½ΠΈΡ. Выявили Ρ„Ρ€Π°ΠΊΡ‚Π°Π»ΡŒΠ½ΡƒΡŽ Ρ€Π°Π·ΠΌΠ΅Ρ€Π½ΠΎΡΡ‚ΡŒ Π²Ρ€Π΅ΠΌΠ΅Π½Π½ΠΎΠ³ΠΎ ряда транспирации ΠΎΠ³ΡƒΡ€Ρ†Π° ΠΏΡ€ΠΈ СстСствСнном освСщСнии, картофСля – ΠΏΡ€ΠΈ искусствСнном, Π° Ρ‚Π°ΠΊΠΆΠ΅ ΠΈΡ… вСроятностныС характСристики: ΠΌΠ°Ρ‚ΠΎΠΆΠΈΠ΄Π°Π½ΠΈΠ΅, срСднСквадратичСскоСотклонСниС ΠΈ диспСрсия. (Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ ΠΈ обсуТдСниС) ΠŸΠΎΠ»ΡƒΡ‡ΠΈΠ»ΠΈ ΠΏΠΎΠ΄Ρ‚Π²Π΅Ρ€ΠΆΠ΄Π΅Π½ΠΈΠ΅ Π½Π°ΡƒΡ‡Π½ΠΎΠΉ Π³ΠΈΠΏΠΎΡ‚Π΅Π·Ρ‹ ΠΎ влиянии Π»ΠΈΠΌΠΈΡ‚ΠΈΡ€ΡƒΡŽΡ‰ΠΈΡ… климатичСских Ρ„Π°ΠΊΡ‚ΠΎΡ€ΠΎΠ² Π½Π° тСорСтичСский ΠΏΡ€Π΅Π΄Π΅Π» продуктивности растСний ΠΈ Ρ„Ρ€Π°ΠΊΡ‚Π°Π»ΡŒΠ½ΠΎΠΉ размСрности транспирации ΠΊΠ°ΠΊ ΠΈΠ½Π΄ΠΈΠΊΠ°Ρ‚ΠΎΡ€Π° ΠΏΡ€ΠΎΠ΄ΡƒΠΊΡ†ΠΈΠΎΠ½Π½Ρ‹Ρ… процСссов Π² растСниСводствС. (Π’Ρ‹Π²ΠΎΠ΄Ρ‹) Π”ΠΎΠΏΠΎΠ»Π½ΠΈΠ»ΠΈ Π½Π°ΡƒΡ‡Π½ΡƒΡŽΒ Π³ΠΈΠΏΠΎΡ‚Π΅Π·Ρƒ ΠΎ влиянии Π»ΠΈΠΌΠΈΡ‚ΠΈΡ€ΡƒΡŽΡ‰ΠΈΡ… климатичСских Ρ„Π°ΠΊΡ‚ΠΎΡ€ΠΎΠ² Π½Π° тСорСтичСский ΠΏΡ€Π΅Π΄Π΅Π» продуктивности растСний. Показали, Ρ‡Ρ‚ΠΎ ΠΏΡ€ΠΈ искусствСнном интСнсивном освСщСнии всходов картофСля Ρ„Ρ€Π°ΠΊΡ‚Π°Π»ΡŒΠ½Π°Ρ Ρ€Π°Π·ΠΌΠ΅Ρ€Π½ΠΎΡΡ‚ΡŒ Ρ€Π°Π²Π½Π° 1,1,Β Π° диспСрсия Π²Ρ€Π΅ΠΌΠ΅Π½Π½ΠΎΠ³ΠΎ случайного ряда транспирации снизилась Π±ΠΎΠ»Π΅Π΅ Ρ‡Π΅ΠΌ Π² 6 Ρ€Π°Π· ΠΏΠΎ ΡΡ€Π°Π²Π½Π΅Π½ΠΈΡŽ с Π°Π½Π°Π»ΠΎΠ³ΠΈΡ‡Π½Ρ‹ΠΌΒ Π²Ρ€Π΅ΠΌΠ΅Π½Π½Ρ‹ΠΌ рядом ΠΏΡ€ΠΈ СстСствСнном освСщСнии БИ

    Live imaging of micro and macro wettability variations of carbonate oil reservoirs for enhanced oil recovery and CO/ trapping/storage

    Get PDF
    Carbonate hydrocarbon reservoirs are considered as potential candidates for chemically enhanced oil recovery and for COΒ² geological storage. However, investigation of one main controlling parameterβ€”wettabilityβ€”is usually performed by conventional integral methods at the core-scale. Moreover, literature reports show that wettability distribution may vary at the micro-scale due to the chemical heterogeneity of the reservoir and residing fluids. These differences may profoundly affect the derivation of other reservoir parameters such as relative permeability and capillary pressure, thus rendering subsequent simulations inaccurate. Here we developed an innovative approach by comparing the wettability distribution on carbonates at micro and macro-scale by combining live-imaging of controlled condensation experiments and X-ray mapping with sessile drop technique. The wettability was quantified by measuring the differences in contact angles before and after aging in palmitic, stearic and naphthenic acids. Furthermore, the influence of organic acids on wettability was examined at micro-scale, which revealed wetting heterogeneity of the surface (i.e., mixed wettability), while corresponding macro-scale measurements indicated hydrophobic wetting properties. The thickness of the adsorbed acid layer was determined, and it was correlated with the wetting properties. These findings bring into question the applicability of macro-scale data in reservoir modeling for enhanced oil recovery and geological storage of greenhouse gases

    Бпособ контроля продуктивности растСния

    Get PDF
    The necessary condition for obtaining high yields is the management of plant production processes in closed artificial agroecosystems. It is important to control the intensity of these processes in a dynamic mode. (Research purpose) To develop a non-destructive method for controlling the plant productivity growth to create algorithms for controlling the plant production processes. (Materials and methods) The authors studied the dependence of plant productivity on leaf temperature. They determined the increase in plant leaf mass using digital scales, studied the leaf temperature and the control object with a pyrometric thermometer and measured the leaf surface area. (Results and discussion) The authors obtained the values of plant and environmental parameters and, taking into account the moisture consumption for transpiration cooling, determined the values of the lettuce leaf mass growth (Latuca sativa L.), which would be used in conjunction with other measured plant and environmental parameters to control the limiting factors in closed artificial agroecosystems. (Conclusions) The authors developed a non-destructive method to control plant productivity growth in climatic chambers using the example of Krasnyy Dubolistnyy lettuce. It was determined that the green mass growth rate had a maximum if the mass of cooling water during evaporation was 0.65 gram. That meant the plant tried to maximize the use of free energy and the productive factors that determined it. The weight values calculated from the experiment results (2.0 grams) corresponded to the data obtained at the Omsk State Agrarian University (1.9 gram) with an accuracy of 5 percent.Π Π΅Ρ„Π΅Ρ€Π°Ρ‚. Показали, Ρ‡Ρ‚ΠΎ ΡƒΠΏΡ€Π°Π²Π»Π΅Π½ΠΈΠ΅ ΠΏΡ€ΠΎΠ΄ΡƒΠΊΡ†ΠΈΠΎΠ½Π½Ρ‹ΠΌΠΈ процСссами Π² растСнии Π² систСмС Π·Π°ΠΊΡ€Ρ‹Ρ‚Ρ‹Ρ… искусствСнных агроэкосистСм – Π½Π΅ΠΎΠ±Ρ…ΠΎΠ΄ΠΈΠΌΠΎΠ΅ условиС получСния высоких ΡƒΡ€ΠΎΠΆΠ°Π΅Π². Π’Π°ΠΆΠ½ΠΎ ΠΊΠΎΠ½Ρ‚Ρ€ΠΎΠ»ΠΈΡ€ΠΎΠ²Π°Ρ‚ΡŒ ΠΈΠ½Ρ‚Π΅Π½ΡΠΈΠ²Π½ΠΎΡΡ‚ΡŒ этих процСссов Π² динамичСском Ρ€Π΅ΠΆΠΈΠΌΠ΅. Β (ЦСль исслСдования) Π Π°Π·Ρ€Π°Π±ΠΎΡ‚Π°Ρ‚ΡŒ способ Π½Π΅Ρ€Π°Π·Ρ€ΡƒΡˆΠ°ΡŽΡ‰Π΅Π³ΠΎ контроля роста продуктивности растСний для создания Π°Π»Π³ΠΎΡ€ΠΈΡ‚ΠΌΠΎΠ² управлСния ΠΏΡ€ΠΎΠ΄ΡƒΠΊΡ†ΠΈΠΎΠ½Π½Ρ‹ΠΌΠΈ процСссами. (ΠœΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Ρ‹ ΠΈ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹) Π˜Π·ΡƒΡ‡ΠΈΠ»ΠΈ Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡ‚ΡŒ продуктивности растСния ΠΎΡ‚ Ρ‚Π΅ΠΌΠΏΠ΅Ρ€Π°Ρ‚ΡƒΡ€Ρ‹ листа. ΠžΠΏΡ€Π΅Π΄Π΅Π»ΠΈΠ»ΠΈ прирост листовой массы растСния с ΠΏΠΎΠΌΠΎΡ‰ΡŒΡŽ Ρ†ΠΈΡ„Ρ€ΠΎΠ²Ρ‹Ρ… вСсов, ΠΏΡ€ΠΎΠ²Π΅Π»ΠΈ ΡƒΡ‡Π΅Ρ‚ Ρ‚Π΅ΠΌΠΏΠ΅Ρ€Π°Ρ‚ΡƒΡ€Ρ‹ листа ΠΈ ΠΊΠΎΠ½Ρ‚Ρ€ΠΎΠ»ΡŒΠ½ΠΎΠ³ΠΎ ΠΎΠ±ΡŠΠ΅ΠΊΡ‚Π° пиромСтричСским Ρ‚Π΅Ρ€ΠΌΠΎΠΌΠ΅Ρ‚Ρ€ΠΎΠΌ, ΠΈΠ·ΠΌΠ΅Ρ€ΠΈΠ»ΠΈ ΠΏΠ»ΠΎΡ‰Π°Π΄ΡŒ листовой повСрхности. Β (Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ ΠΈ обсуТдСниС) ΠŸΠΎΠ»ΡƒΡ‡ΠΈΠ»ΠΈ значСния ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΎΠ² растСния ΠΈ ΠΎΠΊΡ€ΡƒΠΆΠ°ΡŽΡ‰Π΅ΠΉ срСды ΠΈ, учитывая расход Π²Π»Π°Π³ΠΈ Π½Π° транспирационноС ΠΎΡ…Π»Π°ΠΆΠ΄Π΅Π½ΠΈΠ΅, установили значСния прироста листовой массы салата (Latuca sativaβ€…L.), ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Π΅ Π±ΡƒΠ΄ΡƒΡ‚ ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΠΎΠ²Π°Π½Ρ‹ Π² совокупности с Π΄Ρ€ΡƒΠ³ΠΈΠΌΠΈ ΠΈΠ·ΠΌΠ΅Ρ€Π΅Π½Π½Ρ‹ΠΌΠΈ ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€Π°ΠΌΠΈ растСния ΠΈ ΠΎΠΊΡ€ΡƒΠΆΠ°ΡŽΡ‰Π΅ΠΉ срСды для управлСния Π»ΠΈΠΌΠΈΡ‚ΠΈΡ€ΡƒΡŽΡ‰ΠΈΠΌΠΈ Ρ„Π°ΠΊΡ‚ΠΎΡ€Π°ΠΌΠΈ Π² Π·Π°ΠΊΡ€Ρ‹Ρ‚Ρ‹Ρ… искусствСнных агроэкосистСмах. (Π’Ρ‹Π²ΠΎΠ΄Ρ‹) Π Π°Π·Ρ€Π°Π±ΠΎΡ‚Π°Π»ΠΈ способ Π½Π΅Ρ€Π°Π·Ρ€ΡƒΡˆΠ°ΡŽΡ‰Π΅Π³ΠΎ контроля роста продуктивности растСний Π² климатичСских ΠΊΠ°ΠΌΠ΅Ρ€Π°Ρ… Π½Π° ΠΏΡ€ΠΈΠΌΠ΅Ρ€Π΅ салата сорта ΠšΡ€Π°ΡΠ½Ρ‹ΠΉ дуболистный. ΠžΠΏΡ€Π΅Π΄Π΅Π»ΠΈΠ»ΠΈ, Ρ‡Ρ‚ΠΎ прирост прирост Π·Π΅Π»Π΅Π½ΠΎΠΉ массы ΠΈΠΌΠ΅Π΅Ρ‚ максимум, Ссли масса ΠΎΡ…Π»Π°ΠΆΠ΄Π°ΡŽΡ‰Π΅ΠΉ Π²ΠΎΠ΄Ρ‹ ΠΏΡ€ΠΈ испарСнии Ρ€Π°Π²Π½Π° 0,65 Π³Ρ€Π°ΠΌΠΌΠ°, Ρ‚ΠΎ Π΅ΡΡ‚ΡŒ растСниС стрСмится максимально ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΠΎΠ²Π°Ρ‚ΡŒ ΡΠ²ΠΎΠ±ΠΎΠ΄Π½ΡƒΡŽ ΡΠ½Π΅Ρ€Π³ΠΈΡŽ ΠΈ ΠΎΠΏΡ€Π΅Π΄Π΅Π»ΡΡŽΡ‰ΠΈΠ΅ Π΅Π΅ ΠΏΡ€ΠΎΠ΄ΡƒΠΊΡ‚ΠΈΠ²Π½Ρ‹Π΅ Ρ„Π°ΠΊΡ‚ΠΎΡ€Ρ‹. РассчитанныС ΠΏΠΎ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Π°ΠΌ экспСримСнта вСсовыС значСния (2,0 Π³Ρ€Π°ΠΌΠΌΠ°) ΡΠΎΠΎΡ‚Π²Π΅Ρ‚ΡΡ‚Π²ΡƒΡŽΡ‚ Π΄Π°Π½Π½Ρ‹ΠΌ, ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½Π½Ρ‹ΠΌ Π² Омском государствСнном Π°Π³Ρ€Π°Ρ€Π½ΠΎΠΌ унивСрситСтС (1,9 Π³Ρ€Π°ΠΌΠΌΠ°), с Ρ‚ΠΎΡ‡Π½ΠΎΡΡ‚ΡŒΡŽ 5 ΠΏΡ€ΠΎΡ†Π΅Π½Ρ‚ΠΎΠ²
    • …
    corecore