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Artykuły w czasopismach na temat „Microscopic System”

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Data publikacji: 6 września 2023

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1

Reffner, John A., i William T. Wihlborg. "FR-IR Molecular Microanalysis System". Proceedings, annual meeting, Electron Microscopy Society of America 48, nr 2 (12.08.1990): 270–71. http://dx.doi.org/10.1017/s0424820100134958.

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The IRμs™ is the first fully integrated system for Fourier transform infrared (FT-IR) microscopy. FT-IR microscopy combines light microscopy for morphological examination with infrared spectroscopy for chemical identification of microscopic samples or domains. Because the IRμs system is a new tool for molecular microanalysis, its optical, mechanical and system design are described to illustrate the state of development of molecular microanalysis. Applications of infrared microspectroscopy are reviewed by Messerschmidt and Harthcock.Infrared spectral analysis of microscopic samples is not a new idea, it dates back to 1949, with the first commercial instrument being offered by Perkin-Elmer Co. Inc. in 1953. These early efforts showed promise but failed the test of practically. It was not until the advances in computer science were applied did infrared microspectroscopy emerge as a useful technique. Microscopes designed as accessories for Fourier transform infrared spectrometers have been commercially available since 1983. These accessory microscopes provide the best means for analytical spectroscopists to analyze microscopic samples, while not interfering with the FT-IR spectrometer’s normal functions.

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2

ENGELHARDT, Eliasz. "Marcello Malpighi: the nervous system under a microscope". Arquivos de Neuro-Psiquiatria 79, nr 4 (kwiecień 2021): 346–49. http://dx.doi.org/10.1590/0004-282x-anp-2020-0309.

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ABSTRACT The longstanding study of gross anatomy experienced a considerable improvement with the advent of the microscope in the early 17th century. The representative personality of this new era certainly was Marcello Malpighi, seen as “founder of microscopic anatomy”. He studied, with a rudimentary compound microscope, numerous tissues and organs of several classes of animals, as well as plants. He described, for the first time, the microscopic structure of the nervous system, identifying in the gray matter of its various levels minute elements he took as “glands”. It should be reminded that the concept of “cell” (and “nerve cell”) was unknown at his time. Many researchers followed, performing microscopic studies, but without better results, and Malpighi’s view was maintained until the beginning of the 19th century, when new histological processing and staining techniques appeared, as well as improved microscopes.

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3

EBISAWA, Mizue, Yukitoshi OTANI i Norihiro UMEDA. "Microscopic System for Birefringence Mapping". Journal of the Japan Society for Precision Engineering, Contributed Papers 70, nr 6 (2004): 828–32. http://dx.doi.org/10.2493/jspe.70.828.

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Abbott, Alison. "Microscopic marvels: Seeing the system". Nature 459, nr 7247 (czerwiec 2009): 630–31. http://dx.doi.org/10.1038/459630a.

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5

Oku, Hiromasa, Idaku Ishii i Masatoshi Ishikawa. "A microscopic visual feedback system". Systems and Computers in Japan 35, nr 13 (2004): 71–79. http://dx.doi.org/10.1002/scj.10056.

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6

Ryan, John P. "Microscopic Anatomy of the Immune System". Journal of Histotechnology 8, nr 1 (marzec 1985): 27–29. http://dx.doi.org/10.1179/his.1985.8.1.27.

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7

Miranda, E. N. "Microscopic description of a nonequilibrium system". European Journal of Physics 26, nr 5 (29.07.2005): 935–38. http://dx.doi.org/10.1088/0143-0807/26/5/025.

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Hofmann, H. M., i G. M. Hale. "Microscopic calculation of the 4He system". Nuclear Physics A 613, nr 1-2 (styczeń 1997): 69–106. http://dx.doi.org/10.1016/s0375-9474(96)00418-6.

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9

Song, Changjiang, Na Xing i Gang Wu. "Microscopic Three-Dimensional Measurement System Design". AASRI Procedia 3 (2012): 540–45. http://dx.doi.org/10.1016/j.aasri.2012.11.085.

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10

Maekaku, K., i Z. Yoshida. "Hierarchical foliation of one-dimensional Vlasov–Poisson system". Physics of Plasmas 29, nr 8 (sierpień 2022): 082303. http://dx.doi.org/10.1063/5.0089574.

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We elucidate the intermediate of the macroscopic fluid model and the microscopic kinetic model by studying the Poisson algebraic structure of the one-dimensional Vlasov–Poisson system. The water-bag model helps formulating the hierarchy of sub-algebras, which interpolates the gap between the fluid and kinetic models. By analyzing the embedding of the sub-manifold of an intermediate hierarchy in a more microscopic hierarchy, we characterize the microscopic effect as the symmetry breaking pertinent to a macroscopic invariant.

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11

Naumov, A. A. "Optical system of 3D AOTF-based microscopic imager". Journal of Physics: Conference Series 2127, nr 1 (1.11.2021): 012038. http://dx.doi.org/10.1088/1742-6596/2127/1/012038.

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Abstract In this paper, we propose a novel approach of calculating optical stereoscopic systems containing acousto-optic tunable filters. Each channel is designed separately as a simple imaging system. It is formed by an entrance lens, a radiation receiver lens, and an acousto-optic filter. The optimization of the depth of field and the magnification of the optical system is carried out during the calculations. The numerical values of the overall parameters obtained satisfy the given initial requirements. The Zemax simulation of the built optical system is in strong agreement with the calculation.

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12

Gheorghe, A. C. "Positioning system in microscopic spaces (μ-GPS)". Scientific Bulletin of Electrical Engineering Faculty 17, nr 2 (1.10.2017): 54–56. http://dx.doi.org/10.1515/sbeef-2017-0012.

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AbstractThe study aims for the development of a unique positioning system in the world of microscopy consisting of a transducer and software application. The technology used is based on image processing which creates a special hardware (transducer). The virtual labeling is the essential idea of this system. It synchronizes two essential things: the actual object and a set of exact coordinates to be retained in a database, with the ultimate goal of relocating them by bringing them into the visual field.

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13

Zhu, Siqi, Kang Su, Migao Li, Zhenqiang Chen, Hao Yin i Zhen Li. "Multi-type hyper-spectral microscopic imaging system". Optik 127, nr 18 (wrzesień 2016): 7218–24. http://dx.doi.org/10.1016/j.ijleo.2016.05.053.

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14

Ohno, Keiichi, i Takeshi Murakami. "Microscopic ESR imaging using a microcoil system". Journal of Magnetic Resonance (1969) 79, nr 2 (wrzesień 1988): 343–47. http://dx.doi.org/10.1016/0022-2364(88)90228-4.

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15

Adamian, G. G., N. V. Antonenko, R. V. Jolos i A. K. Nasirov. "Microscopic driving potential for a dinuclear system". Nuclear Physics A 551, nr 2 (styczeń 1993): 321–32. http://dx.doi.org/10.1016/0375-9474(93)90484-f.

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16

Wurzer, J., i H. M. Hofmann. "Microscopic multi-channel calculations for the10Li system". Zeitschrift für Physik A Hadrons and Nuclei 354, nr 2 (grudzień 1996): 135–42. http://dx.doi.org/10.1007/bf02769505.

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17

Jauho, A. P., M. B. Bønsager, K. Flensberg, B. Y. K. Hu i J. Kinaret. "Microscopic Theory of Transconductivity". VLSI Design 6, nr 1-4 (1.01.1998): 87–90. http://dx.doi.org/10.1155/1994/35797.

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Measurements of momentum transfer between two closely spaced mesoscopic electronic systems, which couple via Coulomb interaction but where tunneling is inhibited, have proven to be a fruitful method of extracting information about interactions in mesoscopic systems. We report a fully microscopic theory for transconductivity σ12, or, equivalently, momentum transfer rate between the system constituents. Our main formal result expresses the transconductivity in terms of two fluctuation diagrams, which are topologically related, but not equivalent to, the Azlamazov-Larkin and Maki-Thompson diagrams known for superconductivity. In the present paper the magnetic field dependence of σ12 is discussed, and we find that σ12(B) is strongly enhanced over its zero field value, and it displays strong features, which can be understood in terms of a competition between density-of-states and screening effects.

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18

Fahrenbach, W. H., i Claudia P. Arango. "Microscopic anatomy of pycnogonida: II. Digestive system. III. Excretory system". Journal of Morphology 268, nr 11 (2007): 917–35. http://dx.doi.org/10.1002/jmor.10553.

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19

Guo, Li Na, Zhi Lie Tang i Da Xing. "Microscopic Three-Dimensional Imaging Theory Based on RIKES". Key Engineering Materials 364-366 (grudzień 2007): 1089–94. http://dx.doi.org/10.4028/www.scientific.net/kem.364-366.1089.

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A novel nonlinear confocal microscopic imaging system based on Raman induced Kerr effect spectroscopy (RIKES) is presented in this paper. The three-dimensional (3-D) microscopic imaging theory is derived with the Fourier imaging theory and nonlinear optical principle. The impact of RIKES on the spatial resolution and imaging properties of confocal microscopic imaging system has been analyzed in detail by the imaging theory. It’s proved that the RIKES nonlinear microscopic imaging system can effectively improve the imaging contrast and provide more characteristic information on Raman spectrum and optical nonlinear Kerr effect, thus greatly improving the imaging quality of confocal microscopic imaging system. It’s shown that the spatial resolution of RIKES confocal microscopic imaging system is higher than that of two-photon confocal microscopic imaging system.

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20

MAGPANTAY, JOSE A. "MICROSCOPIC IRREVERSIBILITY AND THE H THEOREM". International Journal of Modern Physics B 27, nr 04 (20.12.2012): 1250205. http://dx.doi.org/10.1142/s0217979212502050.

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Time-reversal had always been assumed to be a symmetry of physics at the fundamental level. In this paper we will explore the violations of time-reversal symmetry at the fundamental level and the consequence on thermodynamic systems. First, we will argue from current physics that the universe dynamics is not time-reversal invariant. Second, we will argue that any thermodynamic system cannot be isolated completely from the universe. We then discuss how these two make the dynamics of thermodynamics systems very weakly irreversible at the classical and quantum level. Since time-reversal is no longer a symmetry of realistic systems, the problem of how macroscopic irreversibility arises from microscopic reversibility becomes irrelevant because there is no longer microscopic reversibility. At the classical level of a thermodynamic system, we show that the H theorem of Boltzmann is still valid even without microscopic reversibility. We do this by deriving a modified H theorem, which still shows entropy monotonically increasing. At the quantum level, we explicitly show the effect of CP violation, small irreversible changes on the internal states of the nuclear and atomic energy levels of thermodynamic systems. Thus, we remove Loschmidt's objection to Boltzmann's ideas.

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21

Burini, Diletta, Elena De Angelis i Miroslaw Lachowicz. "A Continuous–Time Markov Chain Modeling Cancer–Immune System Interactions". Communications in Applied and Industrial Mathematics 9, nr 2 (1.12.2018): 106–18. http://dx.doi.org/10.2478/caim-2018-0018.

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Abstract In the present paper we propose two mathematical models describing, respectively at the microscopic level and at the mesoscopic level, a system of interacting tumor cells and cells of the immune system. The microscopic model is in terms of a Markov chain defined by the generator, the mesoscopic model is developed in the framework of the kinetic theory of active particles. The main result is to prove the transition from the microscopic to mesoscopic level of description.

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22

Yurshevich, Elena, i Irina Yatskiv. "Consideration of the Aspects of the Transportation Systems Microscopic Model Application as Part of a Decision Support System". Transport and Telecommunication Journal 13, nr 3 (1.01.2012): 209–18. http://dx.doi.org/10.2478/v10244-012-0017-5.

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Consideration of the Aspects of the Transportation Systems Microscopic Model Application as Part of a Decision Support System The article presents the experience in using decision support system (DSS) when managing urban transport system (UTS) and a possibility of using microscopic modelling as an integral part of the decision-support system (DSS) when managing the urban TS. To illustrate the problem and a possible DSS-based solution, an example of a specific project has been examined, where microscopic modelling was used for the analysis of possible reconstruction of a transport system (TS) fragment in the city of Riga, - which was performed in 2010 in the laboratory of applied software systems of the Transport and Telecommunication Journal Institute (in Riga). The project goal was the consideration of expediency for implementation of a pedestrian area in the street of city centre with the existing street traffic. The article formulates some problems that occurred in the process of development and application of simulation model for analysing various scenarios; some possible alternatives of their solution are suggested. An alternative of possible DSS architecture for managing TS in Riga is suggested; some requirements to the data handling and organization in the system are examined. Special attention has been paid to the problem of synchronizing the data handling of macroscopic and microscopic models of urban TS. The article formulates the requirements to organization of data transmission interface between macroscopic and microscopic data. The suggested DSS concept can be used when solving various problems of transportation planning.

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23

Ran, Bin, Shawn Leight i Ben Chang. "Microscopic Simulation Analysis for Automated Highway System Merging Process". Transportation Research Record: Journal of the Transportation Research Board 1651, nr 1 (styczeń 1998): 98–106. http://dx.doi.org/10.3141/1651-14.

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The automated highway system (AHS) concept with dedicated lanes is not designed as a stand-alone transportation facility. Drivers will by necessity need to drive from their origins to the AHS entrance and from the AHS exit to their final destinations. Therefore, the AHS will affect other transportation facilities and will need to be integrated with all other facilities in the transportation system. Interfaces create much of the congestion for today’s transportation systems. AHS interfaces may cause similar problems, as a result of either AHS interactions with conventional systems or internal limitations from AHS merging capabilities. If these problems exist, either the AHS or the conventional road network cannot function properly. Then the system as a whole will break down, and the AHS could prove a detriment to the overall transportation system. Clearly not enough is known about the automated merging process to determine what conditions would lead to congestion at interface points. Current macroscopic techniques assume parameters that are not applicable to an AHS, and no detailed AHS merging models have been developed and validated. The AHS to conventional roadway interface problem is addressed by presenting a microscopic simulation model for one scenario of the automated merging maneuver. Some numerical results are presented for this merging scenario.

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24

Sihombing, Juli Mutiara, i Emmy Kejora. "The Effect of Different rearing Systems on Microscopic Quality of Fresh Semen in Thin Tail Sheep". International Journal of Research and Review 9, nr 2 (8.02.2022): 94–97. http://dx.doi.org/10.52403/ijrr.20220213.

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The rearing system is one of the factors that determine livestock productivity. Good productivity can be influenced by the reproduction of livestock including male livestock, namely the quality of semen. Factors affecting the semen quality of thin-tailed sheep need to be considered, one of which is the livestock rearing system. This study aims to determine the microscopic quality of fresh semen of thin-tailed sheep raised with different rearing systems. The results showed that the best microscopic quality of fresh thin-tailed sheep semen was in intensive livestock rearing at parameters 80.31% motility, +++ mass movement, and 33.84x108 spermatozoa/ml concentration. Keywords: Microscopic Quality, rearing system, thin tail sheep.

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25

Kanakry, Christopher G. "Probing the entire vascular system". Science Translational Medicine 13, nr 576 (13.01.2021): eabg1762. http://dx.doi.org/10.1126/scitranslmed.abg1762.

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Zhang, Jin, An Chen i Menglan Duan. "Study on microscopic growth mechanism of emulsion system hydrate". Underwater Technology 37, nr 3 (18.11.2020): 71–77. http://dx.doi.org/10.3723/ut.37.071.

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In order to master the microscopic growth mechanism of natural gas hydrate, a series of experiments were carried out using a high-pressure hydrate flow loop. The microscopic physical information of the growth of hydrates in the emulsion system is captured by advanced microscopic equipment and the phenomena of the experiments show that: 1) not all water droplets instantaneously generate a hydrate shell, but only a few of the water droplets gradually generate a hydrate shell when reaching the conditions of the hydrate formation; and 2) the coalescence and shear do occur in the hydrate formation process, and the distribution of hydrate particle size has changed.

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Yoon, Jung, Woong Sik Jang, Jeonghun Nam, Do-CiC Mihn i Chae Seung Lim. "An Automated Microscopic Malaria Parasite Detection System Using Digital Image Analysis". Diagnostics 11, nr 3 (16.03.2021): 527. http://dx.doi.org/10.3390/diagnostics11030527.

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Rapid diagnosis and parasitemia measurement is crucial for management of malaria. Microscopic examination of peripheral blood (PB) smears is the gold standard for malaria detection. However, this method is labor-intensive. Here, we aimed to develop a completely automated microscopic system for malaria detection and parasitemia measurement. The automated system comprises a microscope, plastic chip, fluorescent dye, and an image analysis program. Analytical performance was evaluated regarding linearity, precision, and limit of detection and was compared with that of conventional microscopic PB smear examination and flow cytometry. The automated microscopic malaria parasite detection system showed a high degree of linearity for Plasmodium falciparum culture (R2 = 0.958, p = 0.005) and Plasmodium vivax infected samples (R2 = 0.931, p = 0.008). Precision was defined as the %CV of the assay results at each level of parasitemia and the %CV value for our system was lower than that for microscopic examination for all densities of parasitemia. The limit of detection analysis showed 95% probability for parasite detection was 0.00066112%, and a high correlation was observed among all three methods. The sensitivity and specificity of the system was both 100% (n = 21/21) and 100% (n = 50/50), respectively, and the system correctly identified all P. vivax and P. falciparum samples. The automated microscopic malaria parasite detection system offers several advantages over conventional microscopy for rapid diagnosis and parasite density monitoring of malaria.

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28

Olstam, Johan, Viktor Bernhardsson, Charisma Choudhury, Gerdien Klunder, Isabel Wilmink i Martijn van Noort. "Modelling Eco-Driving Support System for Microscopic Traffic Simulation". Journal of Advanced Transportation 2019 (25.12.2019): 1–16. http://dx.doi.org/10.1155/2019/2162568.

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Microscopic traffic simulation is an ideal tool for investigating the network level impacts of eco-driving in different networks and traffic conditions, under varying penetration rates and driver compliance rates. The reliability of the traffic simulation results however rely on the accurate representation of the simulation of the driver support system and the response of the driver to the eco-driving advice, as well as on a realistic modelling and calibration of the driver’s behaviour. The state-of-the-art microscopic traffic simulation models however exclude detailed modelling of the driver response to eco-driver support systems. This paper fills in this research gap by presenting a framework for extending state-of-the-art traffic simulation models with sub models for drivers’ compliance to advice from an advisory eco-driving support systems. The developed simulation framework includes among others a model of driver’s compliance with the advice given by the system, a gear shifting model and a simplified model for estimating vehicles maximum possible acceleration. Data from field operational tests with a full advisory eco-driving system developed within the ecoDriver project was used to calibrate the developed compliance models. A set of verification simulations used to illustrate the effect of the combination of the ecoDriver system and drivers’ compliance to the advices are also presented.

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Gao Meijing, 高美静, 顾海华 Gu Haihua, 关丛荣 Guan Congrong i 吴伟龙 Wu Weilong. "Adaptive Position Calibration for Thermal Microscopic Imaging System". Acta Optica Sinica 33, nr 1 (2013): 0111002. http://dx.doi.org/10.3788/aos201333.0111002.

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SangWoong Lee, i JeongSeon Park. "Microscopic Image Recognition-based Fish Disease Diagnosis System". Journal of Convergence Information Technology 6, nr 10 (31.10.2011): 355–64. http://dx.doi.org/10.4156/jcit.vol6.issue10.45.

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Chopard, Renato P., Guilherme de Araújo Lucas i Adriana Laudana. "Microscopic anatomy of the human vertebro-basilar system". Arquivos de Neuro-Psiquiatria 49, nr 4 (grudzień 1991): 430–33. http://dx.doi.org/10.1590/s0004-282x1991000400010.

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Concerning the structure of connective-muscular components the authors studied the walls of the terminal segments of the vertebral arteries as well as the basilar artery, utilizing the following staining methods: Azan modified by Heideinheim, Weigert's resorcin-fuchsin, and Weigert modified by van Gieson. It was established that wall of the vertebro-basilar system exhibits a mixed structure, muscular and elastic, by means of which the vessels are adjusted to the specific blood circulation conditions. Thus, vertebral arteries show in the most external layer of tunica media an evident external elastic lamina. In contrast, in the basilar artery the elastic tissue is localized mainly in the tunica media, and is distributed heterogeneously. In its caudal segment the elastic fibers are situated in the most internal layer of tunica media, and in the cranial segment the elastic component is homogenously distributed in the whole of tunica media.

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YAI, Tetsuo, Futoshi MITSUHATA, Terumitsu HIRATA i Yoshifumi SHIRAHAMA. "Microscopic assesment system of traffic related air pollution." Doboku Gakkai Ronbunshu, nr 709 (2002): 81–94. http://dx.doi.org/10.2208/jscej.2002.709_81.

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Tsuji, T., T. Uruga, K. Nitta, N. Kawamura, M. Mizumaki, M. Suzuki, O. Sekizawa i in. "Development of Fast Scanning Microscopic XAFS Measurement System". Journal of Physics: Conference Series 430 (22.04.2013): 012019. http://dx.doi.org/10.1088/1742-6596/430/1/012019.

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Wei, Lin, Kang Su, Siqi Zhu, Hao Yin, Zhen Li, Zhenqiang Chen i Migao Li. "Identification of microalgae by hyperspectral microscopic imaging system". Spectroscopy Letters 50, nr 1 (2.01.2017): 59–63. http://dx.doi.org/10.1080/00387010.2017.1287094.

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Gu, Young-Mo, Hyo-Shick Ham i Sung-Eul Choi. "Multi-focal Microscopic System Using a Fiber Bundle". Korean Journal of Optics and Photonics 20, nr 6 (25.12.2009): 354–60. http://dx.doi.org/10.3807/kjop.2009.20.6.354.

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Kim, Sara, Paul J. Henderson, Carla Phillips, Adam R. Orkand, Eric Maddox, Claudia Bien, Ann Smith i Michael L. Astion. "Web-based Competency Assessment System for Microscopic Urinalysis". Clinical Chemistry 48, nr 9 (1.09.2002): 1608–11. http://dx.doi.org/10.1093/clinchem/48.9.1608.

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Hung, Tuan-Yu. "Double relay lens for a microscopic observation system". Optical Engineering 31, nr 7 (1992): 1556. http://dx.doi.org/10.1117/12.58833.

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Marshall, G. E. "Human scleral elastic system: an immunoelectron microscopic study." British Journal of Ophthalmology 79, nr 1 (1.01.1995): 57–64. http://dx.doi.org/10.1136/bjo.79.1.57.

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Paul, Amitesh, i Stefan Mattauch. "Microscopic origin of training in exchange bias system". Applied Physics Letters 95, nr 9 (31.08.2009): 092502. http://dx.doi.org/10.1063/1.3211857.

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Banerji, Ankita, Vinita Grover, Vasant Sathe, S. K. Deb i A. K. Tyagi. "system: Unraveling of microscopic features by Raman spectroscopy". Solid State Communications 149, nr 39-40 (październik 2009): 1689–92. http://dx.doi.org/10.1016/j.ssc.2009.06.045.

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Fujiyoshi, Y., K. Murata, K. Mitsuoka, T. Hirai, A. Miyazawa i Y. Kimura. "A microscopic system for high-resolution electron crystallography". Proceedings, annual meeting, Electron Microscopy Society of America 53 (13.08.1995): 70–71. http://dx.doi.org/10.1017/s0424820100136726.

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High-resolution electron cryo-microscopy is one of good candidate for structure analysis of membrane-protein, and also actually analyzed the structure of membrane-proteins such as bacteriorhodopsin (bR) and plant light-harvesting complex (LHC). By developing an expeditious method for structure analysis up to atomic or near atomic resolution, we would like to interpret a function of protein from the structural point of view. However, there are some difficulties in electron microscopy for structure analysis of protein. Especially, the most serious problems are the specimen damage caused by electron irradiation, the denaturation of biomolecules caused by dehydration and missing high-resolution data on electron micrographs at high-tilted angle.The irradiation damage at 8K has been found to be reduced to 1/20 compared with that at room temperature. We have, therefore, developed a high-resolution electron cryo-microscope and improved it by which images can be recorded with higher resolution than 3 Å at a specimen-stage temperature of 4.2 K, even when the specimen is highly tilted. The highly tilted data are essential for reduction of the missing corn effect.

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Tarquini, Simone, i Massimiliano Favalli. "A microscopic information system (MIS) for petrographic analysis". Computers & Geosciences 36, nr 5 (maj 2010): 665–74. http://dx.doi.org/10.1016/j.cageo.2009.09.017.

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de Graef, M., P. A. Seinen i D. J. W. Ijdo. "Electron microscopic study of the system NiOTiO2". Journal of Solid State Chemistry 58, nr 3 (lipiec 1985): 357–67. http://dx.doi.org/10.1016/0022-4596(85)90218-x.

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de la Plaza, J. Arce, i L. C. Otero-Diaz. "Electron microscopic study of the system MnS-Er2S3". Journal of the Less Common Metals 110, nr 1-2 (sierpień 1985): 371–74. http://dx.doi.org/10.1016/0022-5088(85)90344-3.

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Choudhary, N. K., S. Sharma, S. Goyal i J. Dwivedi. "MICROSCOPIC AND PHYTOCHEMICAL EVALUATION OF CALOTROPIS GIGANTEA". INDIAN DRUGS 54, nr 06 (28.06.2017): 65–68. http://dx.doi.org/10.53879/id.54.06.10652.

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In traditional system of medicine, Calotropis gigantea (Akra) has been used for treatment of various diseases. Since, there is no proper information regarding pharmacognostic parameters of flowers of this plant, our efforts were devoted to study the microscopical characters and phytochemical study of flowers of this plant. Microscopic evaluation of gynostegium, sepal/ calyx, petal, ovary and pedicel were undertaken, determination of ash and extractive values, phytochemical screening and TLC for presence of triterpenoids. The microscopic characterization of the parts of the flower i.e. gynostegium, sepal/ calyx, petal, ovary and pedicel of Calotropis gigantea was performed. The physicochemical characterization‘s gave ash values (total ash: 18.60; acid insoluble ash: 5.46; water soluble ash; 13.50) and extraction with petroleum ether, chloroform and 90% ethanol extract gave 2.4, 3.9 and 2.1% w/w, respectively. TLC of chloroform extract showed the presence of triterpenoids. The microscopic study of the flower of Calotropis gigantea give us the foot prints for further study with the presence of triterpenoids in the flowers.

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Wu, Ye Lan, Fei Yang, Zhi Jing Zhang, Yang Liu i Tao Xie. "The Design of a Micro-Parts Tracking System Micro-Vision-Based". Applied Mechanics and Materials 614 (wrzesień 2014): 331–34. http://dx.doi.org/10.4028/www.scientific.net/amm.614.331.

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Because the assembly process of target identification and tracking technology are rarely involved, introducing target tracking technology into microscopic visual field is of great significance. The paper constructs the microminiature parts motion tracking platform based on microscopic visual. In order to overcome the limitations of small microscopic visual image view, it proposes a tracking algorithm combining a template matching with SIFT feature-based and Kalman prediction, which realizes the local template matching by using Kalman prediction and template update by using SIFT features. Experiment results show that the system can realize the dynamic tracking of small parts and meet the real-time performance and stability.

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Lee, Henry C. "Applying Microscopy in Forensic Science". Microscopy and Microanalysis 4, S2 (lipiec 1998): 490–91. http://dx.doi.org/10.1017/s1431927600022571.

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Microscopy is of vital importance in the real world of the forensic scientist. In today's society, physical evidence is critical to the criminal justice system for the detection, investigation and prosecution of criminal acts. A trail of microscopic fibers led investigators in Atlanta to the conviction of the serial killer, Wayne Williams. Flecks of paint on a hit-run victim, analyzed microscopically, can be compared with the paint on a suspect vehicle to exclude or match it to the crime. The forensic firearms examiner compares the microscopic striations on a bullet to match it to the gun it was fired from. Microscopes are used throughout the modern forensic laboratory. They are essential in searching for evidence. They aid the examiner in identifying and comparing trace evidence. As the scales of justice symbolize forensic science, microscopes symbolize the trace evidence examiner.Because of the variety of physical evidence, forensic scientists use several types of microscopes in their investigations.

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Dittrich, Thomas, i Santiago Peña Martínez. "Toppling Pencils—Macroscopic Randomness from Microscopic Fluctuations". Entropy 22, nr 9 (18.09.2020): 1046. http://dx.doi.org/10.3390/e22091046.

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We construct a microscopic model to study discrete randomness in bistable systems coupled to an environment comprising many degrees of freedom. A quartic double well is bilinearly coupled to a finite number N of harmonic oscillators. Solving the time-reversal invariant Hamiltonian equations of motion numerically, we show that for N=1, the system exhibits a transition with increasing coupling strength from integrable to chaotic motion, following the Kolmogorov-Arnol’d-Moser (KAM) scenario. Raising N to values of the order of 10 and higher, the dynamics crosses over to a quasi-relaxation, approaching either one of the stable equilibria at the two minima of the potential. We corroborate the irreversibility of this relaxation on other characteristic timescales of the system by recording the time dependences of autocorrelation, partial entropy, and the frequency of jumps between the wells as functions of N and other parameters. Preparing the central system in the unstable equilibrium at the top of the barrier and the bath in a random initial state drawn from a Gaussian distribution, symmetric under spatial reflection, we demonstrate that the decision whether to relax into the left or the right well is determined reproducibly by residual asymmetries in the initial positions and momenta of the bath oscillators. This result reconciles the randomness and spontaneous symmetry breaking of the asymptotic state with the conservation of entropy under canonical transformations and the manifest symmetry of potential and initial condition of the bistable system.

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Lee, Chi-Yuan, Chia-Hung Chen, Guo-Bin Jung, Yu-Xiang Zheng i Yi-Cheng Liu. "PEMWE with Internal Real-Time Microscopic Monitoring Function". Membranes 11, nr 2 (27.01.2021): 92. http://dx.doi.org/10.3390/membranes11020092.

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In recent years, various countries have been paying attention to environmental protection issues, believing that climate change is the main challenge to the developed countries’ energy policies. The most discussed solution is renewable energy. The energy storage system can reduce the burden of the overall power system of renewable energy. The hydrogen energy is one of the optimal energy storage system options of renewable energy at present. According to these policies and the future trend, this study used micro-electro-mechanical systems (MEMS) technology to integrate micro voltage, current, temperature, humidity, flow and pressure sensors on a 50 μm thick polyimide (PI) substrate. After the optimization design and process optimization, the flexible six-in-one microsensor was embedded in the proton exchange membrane water electrolyzer (PEMWE) for internal real-time microscopic monitoring.

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Rodríguez, J. Apolinar Muñoz. "Micro-Scale Surface Recognition via Microscope System Based on Hu Moments Pattern and Micro Laser Line Projection". Metals 13, nr 5 (4.05.2023): 889. http://dx.doi.org/10.3390/met13050889.

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The surface engineering of metals develops high technology to detect microscale convex, concave and flat surface patterns. It is because the manufacturing industry requires technologies to recognize microscale surface features. Thus, it is necessary to develop microscopic vision technology to recognize microscale concave, convex and flat surfaces. This study addresses microscale concave, convex and flat surface recognition via Hu moments’ patterns based on micro-laser line contouring. In this recognition, a Hu moments’ pattern is generated from a Bezier model to characterize the surface recovered through microscopic scanning. The Bezier model is accomplished by employing a genetic algorithm and surface coordinates. Thus, the flat, convex and concave surfaces are recognized based on the Hu moments’ pattern of each one. The microscope system projects a 40 μm laser line on the object and a camera acquires the object’s contour reflection to retrieve topographic coordinates. The proposed technique enhances the microscale convex, concave, flat, and surface recognition, which is performed via optical microscope systems. The contribution of microscopic shape recognition based on the Hu moments’ pattern and microscopic laser line is elucidated by a discussion based on the microscopic shape recognition performed through the optical microscopic image processing.

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