Relevant bibliographies by topics / Phase function

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Phase function'

Author: Grafiati
Published: 4 June 2021
Last updated: 9 June 2025

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Journal articles on the topic "Phase function"

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Lieth, J. H., P. R. Fisher, and R. D. Heins. "A Three-phase Model for the Analysis of Sigmoid Patterns of Growth." HortScience 30, no. 4 (July 1995): 761C—761. http://dx.doi.org/10.21273/hortsci.30.4.761c.

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A growth function was developed for describing the progression of shoot elongation over time. While existing functions, such as the logistic function or Richards function, can be fitted to most sigmoid data, we observed situations where distinct lag, linear, and saturation phases were observed but not well represented by these traditional functions. A function was developed that explicitly models three phases of growth as a curvilinear (exponential) phase, followed by a linear phase, and terminating in a saturation phase. This function was found to be as flexible as the Richards function and can be used for virtually any sigmoid data. The model behavior was an improvement over the Richards function in cases where distinct transitions between the three growth phases are evident. The model also lends itself well to simulation of growth using the differential equation approximation for the function.
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Pannu, Navraj S., Garib N. Murshudov, Eleanor J. Dodson, and Randy J. Read. "Incorporation of Prior Phase Information Strengthens Maximum-Likelihood Structure Refinement." Acta Crystallographica Section D Biological Crystallography 54, no. 6 (November 1, 1998): 1285–94. http://dx.doi.org/10.1107/s0907444998004119.

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The application of a maximum-likelihood analysis to the problem of structure refinement has led to striking improvements over the traditional least-squares methods. Since the method of maximum likelihood allows for a rational incorporation of other sources of information, we have derived a likelihood function that incorporates experimentally determined phase information. In a number of different test cases, this target function performs better than either a least-squares target or a maximum-likelihood function lacking prior phases. Furthermore, this target gives significantly better results compared with other functions incorporating phase information. When combined with a procedure to mask `unexplained' density, the phased likelihood target also makes it possible to refine very incomplete models.
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Ilchmann, Achim, and Fabian Wirth. "On Minimum Phase." at – Automatisierungstechnik 61, no. 12 (December 1, 2013): 805–17. http://dx.doi.org/10.1524/auto.2013.1002.

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Abstract We discuss the concept of `minimum phase' for scalar semi Hurwitz transfer functions. The latter are rational functions where the denominator polynomial has its roots in the closed left half complex plane. In the present note, minimum phase is defined in terms of the derivative of the argument function of the transfer function. The main tool to characterize minimum phase is the Hurwitz reflection. The factorization of a weakly stable transfer function into an all-pass and a minimum phase system leads to the result that any semi Hurwitz transfer function is minimum phase if, and only if, its numerator polynomial is semi Hurwitz. To characterize the zero dynamics, we use the Byrnes-Isidori form in the time domain and the internal loop form in the frequency domain. The uniqueness of both forms is shown. This is used to show in particular that asymptotic stable zero dynamics of a minimal realization of a transfer function yields minimum phase, but not vice versa.
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Goyal, Manish, S. K. Dwivedi, and Ajit Singh Rajput. "Effects of different phases of menstrual cycle on lung functions in young girls of 18-24 years age." International Journal of Research in Medical Sciences 5, no. 2 (January 23, 2017): 612. http://dx.doi.org/10.18203/2320-6012.ijrms20170161.

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Background: The dynamic cyclical changes in the levels of various hormones during different phases of menstrual cycle are known to affect functioning of different systems of the body, including the respiratory system. Objective of the study was to study the effects of different phases of menstrual cycle on lung functions in young girls of 18-24 years age.Methods: 78 girls who were medical students of G.R. Medical College, Gwalior, India were chosen for the study. Their lung function parameters were recorded on Spiro Excel, a computerized spirometer. Four lung function parameters i.e. FVC, FEV1, FEV1/FVC% and PEFR were recorded in the different phases of menstrual cycle i.e. menstrual phase, proliferative phase and secretory phase.Results: All lung function parameters except FEV1/FVC% were least in menstrual phase and highest in secretory phase with in between values in proliferative phase. The values were significantly different among the three phases. FEV1/FVC% values were maximum in menstrual phase, lowest in secretory phase with intermediate values in proliferative phase but the values were not significantly different among the three phases. Mean values of FVC, FEV1 and PEFR were higher in all the phases of menstrual cycle in normal BMI subjects as compared to the corresponding phases of underweight subjects.Conclusions: Higher values of lung functions during proliferative and secretory phases can be attributed to the higher concentrations of sex hormones specially progesterone because in most of the studies progesterone is known to cause relaxation of bronchial smooth muscle.
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Manjula, Jamliya, Patel Jigna, B. Mehta H, and J. Shah C. "EFFECT OF PRE AND POST MENSTRUAL PHASES OF MENSTRUAL CYCLE ON SYMPATHETIC FUNCTION TESTS IN HEALTHY ADULT FEMALES." International Journal of Basic and Applied Physiology 7, no. 1 (December 1, 2018): 155–58. https://doi.org/10.5281/zenodo.4481724.

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Abstracts: Background: The menstrual cycle is characterized by fluctuations in several hormones, most notably the gonadal steroids, estrogen and progesterone.¹ Sympathetic function tests are the one of the autonomic function tests and it is easy, non invasive test to be carried out. They give us idea about role of gonadal hormone in sympathetic control of cardiovascular system during different phases of menstrual cycle. Aim: Aim of this study is to determine whether fluctuation of reproductive hormone during premenstrual and post menstrual phases affecting sympathetic function tests or not. Objectives: To do and compare sympathetic function tests in pre and post menstrual phase. Methods: Study was carried out in 50 adult healthy female having age group of 26-40 years. Sympathetic function tests were carried out by instrument Cardiac Autonomic Nervous System Analyzer (CANS) 504 in Department of Physiology, Government Medical Collage, Bhavnagar. Sympathetic function tests were done using standard protocol and statically analyzed. Results: Statically significant difference was seen between premenstrual phase and postmenstrual phase in all sympathetic function test parameters which includes supine systolic and diastolic blood pressure, blood pressure response to standing and systolic blood pressure response after sustained hand grip test. Interpretation & conclusion: According to this study sympathetic dominance is seen in premenstrual phase of menstrual cycle that may be due to increased level of progesterone and oestrogen in premenstrual phase.
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Gao, Huan, and Yongqiang Wang. "On Phase Response Function Based Decentralized Phase Desynchronization." IEEE Transactions on Signal Processing 65, no. 21 (November 1, 2017): 5564–77. http://dx.doi.org/10.1109/tsp.2017.2733452.

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Carlo, Puliafito, Cicconetti Claudio, Conti Marco, Mingozzi Enzo, and Passarella Andrea. "Stateful Function as a Service at the Edge." Computer 55, no. 9 (September 24, 2022): 54–64. https://doi.org/10.5281/zenodo.7110213.

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In function as a service (FaaS), an application is decomposed into functions. We propose to generalize FaaS by allowing functions to alternate between remote-state and local-state phases, depending on internal and external conditions, and dedicating a container with persistent memory to functions when in a local-state phase.
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Baes, Maarten, Peter Camps, and Anand Utsav Kapoor. "A new analytical scattering phase function for interstellar dust." Astronomy & Astrophysics 659 (March 2022): A149. http://dx.doi.org/10.1051/0004-6361/202142437.

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Context. Properly modelling scattering by interstellar dust grains requires a good characterisation of the scattering phase function. The Henyey-Greenstein phase function has become the standard for describing anisotropic scattering by dust grains, but it is a poor representation of the real scattering phase function outside the optical range. Aims. We investigate alternatives for the Henyey-Greenstein phase function that would allow the scattering properties of dust grains to be described. Our goal is to find a balance between realism and complexity: the scattering phase function should be flexible enough to provide an accurate fit to the scattering properties of dust grains over a wide wavelength range, and it should be simple enough to be easy to handle, especially in the context of radiative transfer calculations. Methods. We fit various analytical phase functions to the scattering phase function corresponding to the BARE-GR-S model, one of the most popular and commonly adopted models for interstellar dust. We weigh the accuracy of the fit against the number of free parameters in the analytical phase functions. Results. We confirm that the Henyey-Greenstein phase functions poorly describe scattering by dust grains, particularly at ultraviolet (UV) wavelengths, with relative differences of up to 50%. The Draine phase function alleviates this problem at near-infrared (NIR) wavelengths, but not in the UV. The two-term Reynolds-McCormick phase function, recently advocated in the context of light scattering in nanoscale materials and aquatic media, describes the BARE-GR-S data very well, but its five free parameters are degenerate. We propose a simpler phase function, the two-term ultraspherical-2 (TTU2) phase function, that also provides an excellent fit to the BARE-GR-S phase function over the entire UV-NIR wavelength range. This new phase function is characterised by three free parameters with a simple physical interpretation. We demonstrate that the TTU2 phase function is easily integrated in both the spherical harmonics and the Monte Carlo radiative transfer approaches, without a significant overhead or increased complexity. Conclusions. The new TTU2 phase function provides an ideal balance between being simple enough to be easily adopted and realistic enough to accurately describe scattering by dust grains. We advocate its application in astrophysical applications, in particular in dust radiative transfer calculations.
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Kao, Yi-Hsuan, Wan-Yuo Guo, Adrain Jy-Kang Liou, Ting-Yi Chen, Chau-Chiun Huang, Chih-Che Chou, and Jiing-Feng Lirng. "Transfer Function Analysis of Respiratory and Cardiac Pulsations in Human Brain Observed on Dynamic Magnetic Resonance Images." Computational and Mathematical Methods in Medicine 2013 (2013): 1–7. http://dx.doi.org/10.1155/2013/157040.

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Magnetic resonance (MR) imaging provides a noninvasive,in vivoimaging technique for studying respiratory and cardiac pulsations in human brains, because these pulsations can be recorded as flow-related enhancement on dynamic MR images. By applying independent component analysis to dynamic MR images, respiratory and cardiac pulsations were observed. Using the signal-time curves of these pulsations as reference functions, the magnitude and phase of the transfer function were calculated on a pixel-by-pixel basis. The calculated magnitude and phase represented the amplitude change and temporal delay at each pixel as compared with the reference functions. In the transfer function analysis, near constant phases were found at the respiratory and cardiac frequency bands, indicating the existence of phase delay relative to the reference functions. In analyzing the dynamic MR images using the transfer function analysis, we found the following: (1) a good delineation of temporal delay of these pulsations can be achieved; (2) respiratory pulsation exists in the ventricular and cortical cerebrospinal fluid; (3) cardiac pulsation exists in the ventricular cerebrospinal fluid and intracranial vessels; and (4) a 180-degree phase delay or inverted amplitude is observed on phase images.
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Tuan, Wei Hsing. "Design of Multiphase Materials." Key Engineering Materials 280-283 (February 2007): 963–66. http://dx.doi.org/10.4028/www.scientific.net/kem.280-283.963.

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In the present study, several principles are introduced as the guidelines to design multi- phased materials. Each phase in the multiphase material can offer one function or property to the material. The functions contributed from the phases within the multiphase material can interact with each other. Such interactions can be tailored by suitable microstructure design. The Al2O3-ZrO2-Ni multiphase material is used to demonstrate the applications of the design principles.
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Dissertations / Theses on the topic "Phase function"

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Rybka, Marcin. "Optical properties of MAX-phase materials." Thesis, Linköping University, Applied Optics, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-60008.

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<p> </p><p><p> </p></p><p><p><p> </p></p></p><p>MAX-phase materials are a new type of material class. These materials are potentiallyt echnologically important as they show unique physical properties due to the combination of metals and ceramics. In this project, spectroscopic ellipsometry in the spectral range of 0.06 eV –6.0 eV was used to probe the linear optical response of MAX-phases in terms of the complexd dielectric function <em>ε(ω) = ε1(ω) + iε2(ω<em>). </em></em>Measured data were fit to theoretical models using the Lorentz and generalized oscillator models. Data from seven different samples of MAX-phase materials were obtained using two ellipsometers. Each sample dielectric function was determined, including their infrared spectrum.</p>
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Wunder, Daniel P. "Aerosol scattering phase function retrieval from polar orbiting satellites." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2005. http://library.nps.navy.mil/uhtbin/hyperion/05Mar%5FWunder.pdf.

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Agyo, Sanfo David. "Bi-fractional transforms in phase space." Thesis, University of Bradford, 2016. http://hdl.handle.net/10454/14522.

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The displacement operator is related to the displaced parity operator through a two dimensional Fourier transform. Both operators are important operators in phase space and the trace of both with respect to the density operator gives the Wigner functions (displaced parity operator) and Weyl functions (displacement operator). The generalisation of the parity-displacement operator relationship considered here is called the bi-fractional displacement operator, O(α, β; θα, θβ). Additionally, the bi-fractional displacement operators lead to the novel concept of bi-fractional coherent states. The generalisation from Fourier transform to fractional Fourier transform can be applied to other phase space functions. The case of the Wigner-Weyl function is considered and a generalisation is given, which is called the bi-fractional Wigner functions, H(α, β; θα, θβ). Furthermore, the Q−function and P−function are also generalised to give the bi-fractional Q−functions and bi-fractional P−functions respectively. The generalisation is likewise applied to the Moyal star product and Berezin formalism for products of non-commutating operators. These are called the bi-fractional Moyal star product and bi-fractional Berezin formalism. Finally, analysis, applications and implications of these bi-fractional transforms to the Heisenberg uncertainty principle, photon statistics and future applications are discussed.
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Agyo, Sanfo D. "Bi-fractional transforms in phase space." Thesis, University of Bradford, 2016. http://hdl.handle.net/10454/14522.

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The displacement operator is related to the displaced parity operator through a two dimensional Fourier transform. Both operators are important operators in phase space and the trace of both with respect to the density operator gives the Wigner functions (displaced parity operator) and Weyl functions (displacement operator). The generalisation of the parity-displacement operator relationship considered here is called the bi-fractional displacement operator, O(α, β; θα, θβ). Additionally, the bi-fractional displacement operators lead to the novel concept of bi-fractional coherent states. The generalisation from Fourier transform to fractional Fourier transform can be applied to other phase space functions. The case of the Wigner-Weyl function is considered and a generalisation is given, which is called the bi-fractional Wigner functions, H(α, β; θα, θβ). Furthermore, the Q−function and P−function are also generalised to give the bi-fractional Q−functions and bi-fractional P−functions respectively. The generalisation is likewise applied to the Moyal star product and Berezin formalism for products of non-commutating operators. These are called the bi-fractional Moyal star product and bi-fractional Berezin formalism. Finally, analysis, applications and implications of these bi-fractional transforms to the Heisenberg uncertainty principle, photon statistics and future applications are discussed.
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Haraldsson, Henrik. "Assessment of Myocardial Function using Phase Based Motion Sensitive MRI." Doctoral thesis, Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-60027.

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Quantitative assessment of myocardial function is a valuable tool for clinical applications and physiological studies. This assessment can be acquired using phase based motion sensitive magnetic resonance imaging (MRI) techniques. In this thesis, the accuracy of these phase based motion sensitive MRI techniques is investigated, and modifications in acquisition and post-processing are proposed. The strain rate of the myocardium can be used to evaluate the myocardial function. However, the estimation of strain rate from the velocity data acquired with phase-contrast MRI (PC-MRI) is sensitive to noise. Estimation using normalized convolution showed, however, to reduce this sensitivity to noise and to minimize the influence of non-myocardial tissue which could impair the result. Strain of the myocardium is another measure to assess myocardial function. Strain can be estimated from the myocardial displacement acquired with displacement encoding with stimulated echo (DENSE). DENSE acquisition can be realized with several different encoding strategies. The choice of encoding scheme may make the acquisition more or less sensitive to different sources of error. Two potential sources of errors in DENSE acquisition are the influence of the FID and of  the off-resonance effects. Their influence on DENSE were investigated to determine suitable encoding strategies to reduce their influence and thereby improve the measurement accuracy acquired. The quality of the DENSE measurement is not only dependent on the accuracy, but also the precision of the measurement. The precision is affected by the SNR and thereby depends on flip angle strategies, magnetic field strength and spatial variation of the receiver coil sensitivity. A mutual comparison of their influence on SNR in DENSE was therefore performed and could serve as a guideline to optimize parameters for specific applications. The acquisition time is often an important factor, especially in clinical applications where it affects potential patient discomfort and patient through-put. A multiple-slice DENSE acquisition was therefore presented, which allows the acquisition of strain values according to the 16-segment cardiac model within a single breath-hold, instead of the conventional three breath-holds. The DENSE technique can also be adapted toward comprehensive evaluation of the heart in the form of full three-dimensional three-directional acquisition of the displacement. To estimate the full strain tensor from these data, a novel post-processing technique using a polynomial was investigated. The method yielded accurate results on an analytical model and \textit{in-vivo} strains obtained agreed with previously reported myocardial strains in normal volunteers.
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Can, Geylani. "S-phase checkpoint activity and function throughout the cell cycle." Thesis, University of Cambridge, 2017. https://www.repository.cam.ac.uk/handle/1810/268506.

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DNA damage or replication stress during S-phase can activate the S-phase checkpoint which executes a variety of responses, such as the inhibition of origin firing and replication fork stabilisation. Deregulation of the S-phase checkpoint leads to genomic instability, which has been implicated in diseases such as cancer. In this thesis, I aimed to address whether the S-phase checkpoint is regulated outside of S-phase, and how the S-phase checkpoint targets its substrates in budding yeast. Although this checkpoint has thus far been associated exclusively with S-phase, it remains unknown whether its responses such as inhibition of origin firing can also occur in other phases of the cell cycle. To investigate this, the targets of the S-phase checkpoint for the inhibition of origin firing were analysed outside of S-phase upon DNA damage. Interestingly, I showed that the S-phase checkpoint effector kinase Rad53 phosphorylates its targets to inhibit origin firing outside of S-phase upon DNA damage when there is no replication. I then set out to test whether inhibition of origin firing by Rad53 outside of S-phase might be important for faithful DNA replication. Having shown that the checkpoint response is not specific for any cell cycle phases, I then tested how the specificity of Rad53 for its substrates might be determined. After demonstrating that the essential replication protein Cdc45 is required for Rad53 to phosphorylate the initiation factor Sld3, the key residues of Cdc45 necessary for Rad53 interaction were identified. A Cdc45 allele was produced by mutating the identified residues. This allele of Cdc45 is a separation-of-function mutant which prevents Sld3 phosphorylation upon DNA damage, but retains its function in DNA replication. Because Cdc45 travels with the replication fork, it is possible that Cdc45 also targets Rad53 to the replication fork to stabilise it upon replication stress. Overall, this thesis provides evidence that the S-phase checkpoint can function throughout the cell cycle and that Cdc45 targets Rad53 to some of its substrates, and possibly plays a role in replication fork stabilisation.
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Galanis, Andreas. "Phase transitions in the complexity of counting." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/52211.

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A recent line of works established a remarkable connection for antiferromagnetic 2-spin systems, including the Ising and hard-core models, showing that the computational complexity of approximating the partition function for graphs with maximum degree \Delta undergoes a computational transition that coincides with the statistical physics uniqueness/non-uniqueness phase transition on the infinite \Delta-regular tree. Despite this clear picture for 2-spin systems, there is little known for multi-spin systems. We present the first analog of the above inapproximability results for multi-spin systems. The main difficulty in previous inapproximability results was analyzing the behavior of the model on random \Delta-regular bipartite graphs, which served as the gadget in the reduction. To this end one needs to understand the moments of the partition function. Our key contribution is connecting: (i) induced matrix norms, (ii) maxima of the expectation of the partition function, and (iii) attractive fixed points of the associated tree recursions (belief propagation). We thus obtain a generic analysis of the Gibbs distribution of any multi-spin system on random regular bipartite graphs. We also treat in depth the k-colorings and the q-state antiferromagnetic Potts models. Based on these findings, we prove that for \Delta constant and even k<\Delta, it is NP-hard to approximate within an exponential factor the number of k-colorings on triangle-free \Delta-regular graphs. We also prove an analogous statement for the antiferromagnetic Potts model. Our hardness results for these models complement the conjectured regime where the models are believed to have efficient approximation schemes. We systematize the approach to obtain a general theorem for the computational hardness of counting in antiferromagnetic spin systems, which we ultimately use to obtain the inapproximability results for the k-colorings and q-state antiferromagnetic Potts models, as well as (the previously known results for) antiferromagnetic 2-spin systems. The criterion captures in an appropriate way the statistical physics uniqueness phase transition on the tree.
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Konovalova, V. V., G. A. Pobigay, Y. M. Samchenko, A. F. Burban, and Z. R. Ulberg. "Nanocomposite Membranes with pH- and Thermo-sensitive Function." Thesis, Sumy State University, 2013. http://essuir.sumdu.edu.ua/handle/123456789/35333.

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Resent researches and development in the field of membrane science are focused on improvement of synthetic membranes’ functionality. Combination of soft polymer pH- and temperature-sensitive hydrogels with rigid ultrafiltration membrane attracts much interest as a new class of smart functional systems. In this research we develop pH- and temperature-sensitive composite membranes using radical copolymerization method and study their properties depending on hydrogel composition, nature of synthetic mem-branes, temperature and pH of external medium. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/35333
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Aouni, Jihane. "Utility-based optimization of phase II / phase III clinical development." Thesis, Montpellier, 2019. http://www.theses.fr/2019MONTS032/document.

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Le développement majeur de la thèse a été consacré au problème d’optimisation du choix de dose dans les essais de recherche de dose, en phase II. Nous avons considéré ce problème sous l’angle des fonctions d’utilité. Nous avons alloué une valeur d’utilité aux doses, le problème pour le sponsor étant de trouver la meilleure dose, c’est-à-dire celle dont l’utilité est la plus élevée.Dans ce travail, nous nous sommes limités à une seule fonction d’utilité, intégrant deux composantes: une composante liée à l’efficacité (la POS=puissance d’un essai de phase III de 1000 patients de cette dose contre placebo) et une autre liée à la safety. Pour cette dernière, nous avons choisi de la caractériser par la probabilité prédictive d’observer un taux de toxicité inférieur ou égal à un certain seuil (que nous avons fixé à 0.15) en phase III (toujours pour un essai de 1000 patients au total). Cette approche a l’avantage d’être similaire aux concepts utilisés dans les essais de phase I en oncologie qui ont notamment pour objectif la recherche de la dose liée à une toxicité limite (notion de ”Dose limiting Toxicity”).Nous avons retenu une approche bayésienne pour l’analyse des données de la phase II.Mis à part les avantages théoriques connus de l’approche bayésienne par rapport à l’approche fréquentiste (respect du principe de vraisemblance, dépendance moins grande aux résultats asymptotiques, robustesse), nous avons choisi l’approche bayésienne pour plusieurs raisons:• Combinant, par définition même de l’approche bayésienne, une information a priori avec les données disponibles, elle offre un cadre plus flexible la prise de décision du sponsor: lui permettant notamment d’intégrer de manière plus ou moins explicite les informations dont il dispose en dehors de l’essai de la phase II.• L’approche bayésienne autorise une plus grande flexibilité dans la formalisation des règles de décision.Nous avons étudié les propriétés des règles de décisions par simulation d’essais de phase II de différentes tailles: 250, 500 et 1000 patients. Pour ces deux derniers design nous avons aussi évalué l’intérêt de d’effectuer une analyse intermédiaire lorsque la moitié des patients a été enrôlée (c’est-à-dire avec respectivement les premiers 250 et 500 patients inclus). Le but était alors d’évaluer si, pour les essais de phase II de plus grande taille, s’autoriser la possibilité de choisir la dose au milieu de l’étude et de poursuivre l’étude jusqu’au bout si l’analyse intermédiaire n’est pas concluante permettait de réduire la taille de l’essai de phase II tout en préservant la pertinence du choix de dose final<br>The main development of the thesis was devoted to the problem of dose choice optimization in dose-finding trials, in phase II. We have considered this problem from the perspective of utility functions. We have allocated a utility value to the doses itself, knowing that the sponsor’s problem was now to find the best dose, that is to say, the one having the highest utility. We have limited ourselves to a single utility function, integrating two components: an efficacy-related component (the PoS = the power of a phase III trial - with 1000 patients - of this dose versus placebo) and a safety-related component. For the latter, we chose to characterize it by the predictive probability of observing a toxicity rate lower or equal to a given threshold (that we set to 0.15) in phase III (still for a trial of 1000 patients in total). This approach has the advantage of being similar to the concepts used in phase I trials in Oncology, which particularly aim to find the dose related to a limiting toxicity (notion of "Dose limiting Toxicity").We have adopted a Bayesian approach for the analysis of phase II data. Apart from the known theoretical advantages of the Bayesian approach compared with the frequentist approach (respect of the likelihood principle, less dependency on asymptotic results, robustness), we chose this approach for several reasons:• It provides a more flexible framework for the decision-making of the sponsor because it offers the possibility to combine (by definition of the Bayesian approach) a priori information with the available data: in particular, it offers the possibility to integrate, more or less explicitly, the information available outside the phase II trial.• The Bayesian approach allows greater flexibility in the formalization of the decision rules.We studied the properties of decision rules by simulating phase II trials of different sizes: 250, 500 and 1000 patients. For the last two designs (500 and 1000 patients in phase II), we have also evaluated the interest of performing an interim analysis when half of the patients are enrolled (i.e. with the first 250and the first 500 patients included respectively). The purpose was then to evaluate whether or not, for larger phase II trials, allowing the possibility of choosing the dose in the middle of the study and continuing the study to the end if the interim analysis is not conclusive, could reduce the size of the phase II trial while preserving the relevance of the final dose choice
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10

Engblom, Johan. "On the phase behaviour of lipids with respect to skin barrier function." Lund, Sweden : Dept. of Food Technology, Lund University, 1996. http://books.google.com/books?id=TdFqAAAAMAAJ.

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Books on the topic "Phase function"

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Fung, Amy D. A novel function of the S phase regulator Dfp1. Ottawa: National Library of Canada, 2002.

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Kim, Y. S., and W. W. Zachary, eds. The Physics of Phase Space Nonlinear Dynamics and Chaos Geometric Quantization, and Wigner Function. Berlin, Heidelberg: Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/3-540-17894-5.

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F, Naftolin, and DeCherney Alan H, eds. The Control of follicle development, ovulation, and luteal function: Lessons from in vitro fertilization. New York: Raven Press, 1987.

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Simon, M. Steady-state probability density function of the phase error for a DPLL with an integrate-and-dump device. Pasadena, Calif: National Aeronautics and Space Administration, Jet Propulsion Laboratory, California Institute of Technology, 1986.

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Flamm, David S. Progress on H optimal sensitivity for delay systems. Part I: Minimum phase plant with input delay. l pole/zero weighting function. Cambridge, Mass: Massachusetts Institute of Technology, Laboratory for Information and Decision Systems, 1985.

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J, Mileant, and Jet Propulsion Laboratory (U.S.), eds. Steady-state probability density function of the phase error for a DPLL with an integrate-and-dump device. Pasadena, Calif: National Aeronautics and Space Administration, Jet Propulsion Laboratory, California Institute of Technology, 1986.

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Hurley, Graham Robert Bruce. The effect of development and function on muscle moment power during the recovery phase of running for girls 9 to 17 years. Sudbury, Ont: Laurentian University, 1987.

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Asano, David Ken. Phase smoothing functions for continuous phase modulation. Ottawa: National Library of Canada, 1990.

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S, Kim Y., and Zachary W. W. 1935-, eds. The physics of phase space: Nonlinear dynamics and chaos, geometric quantization, and Wigner function : proceedings of the First International Conference on the Physics of Phase Space, held at the University of Maryland, College Park, Maryland, May 20-23, 1986. Berlin: Springer-Verlag, 1987.

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Wegert, Elias. Visual Complex Functions: An Introduction with Phase Portraits. Basel: Springer Basel, 2012.

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Book chapters on the topic "Phase function"

1

Selvam, K. C. "Phase Sensitive Detectors." In Analog Function Circuits, 409–21. Boca Raton: CRC Press, 2021. http://dx.doi.org/10.1201/9781003221449-26.

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Nagayama, Kuniaki. "Phase Plate Electron Microscopy." In Supramolecular Structure and Function 10, 101–13. Dordrecht: Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-0893-8_6.

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Kollmann, Wolfgang. "Phase and Test Function Spaces." In Navier-Stokes Turbulence, 93–99. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-31869-7_5.

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Kollmann, Wolfgang. "Phase and Test Function Spaces." In Navier-Stokes Turbulence, 99–105. Cham: Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-59578-3_5.

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Cannon, Joseph G. "Exercise and the Acute Phase Response." In Exercise and Immune Function, 39–54. Boca Raton: CRC Press, 2024. http://dx.doi.org/10.4324/9781003575108-3.

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de Beer, F. C., A. F. Strachan, and E. G. Shephard. "Structure, Metabolism and Function of Acute Phase High Density Lipoprotein." In Acute Phase Proteins in the Acute Phase Response, 137–50. London: Springer London, 1989. http://dx.doi.org/10.1007/978-1-4471-1739-1_11.

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Gaehtgens, P. "Microcirculatory Function in Pathophysiological Conditions." In Organfunktion und Stoffwechsel in der perioperativen Phase, 1–4. Berlin, Heidelberg: Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-70798-8_1.

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Yakubovich, Alexander V. "Partition Function of a Polypeptide." In Theory of Phase Transitions in Polypeptides and Proteins, 55–67. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-22592-5_4.

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Quinn, Peter J., and Leonard J. Lis. "Phase Transition Behaviour of Monogalactosyldiacylglycerol." In The Metabolism, Structure, and Function of Plant Lipids, 181–83. Boston, MA: Springer New York, 1987. http://dx.doi.org/10.1007/978-1-4684-5263-1_30.

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Butkovskiy, Anatoliy G. "The Hamiltonian of CDS as a Support Function." In Phase Portraits of Control Dynamical Systems, 24–27. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3258-9_7.

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Conference papers on the topic "Phase function"

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Valouev, Aleksey. "Implicitly Learned Neural Phase Functions for Point Spread Function Engineering." In 2024 IEEE 8th International Conference on Vision, Image and Signal Processing (ICVISP), 1–4. IEEE, 2024. https://doi.org/10.1109/icvisp64524.2024.10959478.

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Zhong, Chuyu, Kun Liao, Maoliang Wei, Hui Ma, Xiaoyong Hu, and Hongtao Lin. "Graphene/silicon heterojunction enabling reconfigurable phase-relevant optical activation function." In CLEO: Science and Innovations, SM4G.1. Washington, D.C.: Optica Publishing Group, 2024. http://dx.doi.org/10.1364/cleo_si.2024.sm4g.1.

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Dual-functional graphene/silicon heterojunctions in microring resonators enabled highly reconfigurable optical activation function devices with phase activation. Special nonlinear functions are fed into a complex-valued ONN to challenge image recognition tasks, showing improved results.
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Chimitt, Nicholas, Ali Almuallem, and Stanley H. Chan. "Phase retrieval of a point spread function." In Unconventional Imaging, Sensing, and Adaptive Optics 2024, edited by Santasri R. Bose-Pillai, Jean J. Dolne, and Matthew Kalensky, 75. SPIE, 2024. http://dx.doi.org/10.1117/12.3028192.

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Yu, Cheng, Ching-En Lin, Sunil Vyas, Hao-Pin Chiu, and Yuan Luo. "Radial-balanced Phase Transfer Function for Accurate Retrieval in Differential Phase Contrast Microscopy." In Frontiers in Optics, JW5A.36. Washington, D.C.: Optica Publishing Group, 2024. https://doi.org/10.1364/fio.2024.jw5a.36.

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Conventional illumination in differential phase contrast (DPC) microscopy limits phase retrieval accuracy due to unbalanced radial phase transfer functions (PTF). We propose a novel illumination pattern and theoretical framework that enhance accuracy by aligning PTF profiles with retrieval algorithms. Simulations show improved performance, indicating significant potential for DPC advancements.
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Zhang, Yikai, Muhammad Saqib Ali, Zheng Chen, Ranchen Yang, Honglei Miao, Fuxing Zhang, and Guozhu Chen. "CP Signal with Optimized Frequency Function and Initial Phase." In 2024 CPSS & IEEE International Symposium on Energy Storage and Conversion (ISESC), 448–53. IEEE, 2024. https://doi.org/10.1109/isesc63657.2024.10785493.

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Lee, Chungha, Hugonnet Herve, Juyeon Park, Mahn Jae Lee, Weisun Park, and YongKeun Park. "Single-shot refractive index imaging using spectral multiplexing and optical transfer function reshaping (Conference Presentation)." In Quantitative Phase Imaging IX, edited by YongKeun Park and Yang Liu. SPIE, 2023. http://dx.doi.org/10.1117/12.2653811.

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Subramanian, A. K., and V. M. Pandharipande. "Gaussian phase function for phased array beam shaping." In IEEE Antennas and Propagation Society International Symposium 1992 Digest. IEEE, 1992. http://dx.doi.org/10.1109/aps.1992.221905.

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Cordeiro, Christine E., Aleksandra K. Denisin, Jenny M. Vo-Phamhi, Alison K. Schroer, Elizabeth L. Pruitt, Oscar J. Abilez, and Olav Solgaard. "Analyzing the effects of engineering cardiomyocyte shape: quantitative phase imaging reveals differences in morphology and function (Conference Presentation)." In Quantitative Phase Imaging V, edited by Gabriel Popescu and YongKeun Park. SPIE, 2019. http://dx.doi.org/10.1117/12.2507720.

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Freyberger, M., and W. Schleich. "Photon-counting, quantum-phase, and phase-space distributions." In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1992. http://dx.doi.org/10.1364/oam.1992.tujj3.

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We analyze a recent proposal for a new phase operator along with an eight-port homodyne detection experiment1 using phase-space functions. We show that the moments of these sine and cosine operators and, in particular, of the measured dispersion result from a phase distribution obtained from an appropriate Wigner function by integration over radius. We also connect this experiment with a different phase operator2 and the integrated Q-function.
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Imamura, Yosuke, Hiroki Matsuno, and Daisuke Yokoyama. "Phase Probrem of Orbifolded Partition Function." In Proceedings of the International Symposium “Nanoscience and Quantum Physics 2012” (nanoPHYS’12). Journal of the Physical Society of Japan, 2015. http://dx.doi.org/10.7566/jpscp.4.013006.

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Reports on the topic "Phase function"

1

Gillespie, Patti. An Analytic Phase Function for Cylindrical Particles. Fort Belvoir, VA: Defense Technical Information Center, August 1992. http://dx.doi.org/10.21236/ada255750.

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Carlos, W. C., and R. L. Fritz. Multi-Function Waste Tank Facility Corrosion Test Report (Phase 1). Office of Scientific and Technical Information (OSTI), December 1993. http://dx.doi.org/10.2172/1083283.

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Awadalla, N. G. Multi-Function Waste Tank Facility phase out basis. Revision 1. Office of Scientific and Technical Information (OSTI), April 1995. http://dx.doi.org/10.2172/69323.

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Awadalla, N. G. Multi-Function Waste Tank Facility phase out basis. Revision 2. Office of Scientific and Technical Information (OSTI), June 1995. http://dx.doi.org/10.2172/97305.

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Manickavasagam, S., and M. P. Menguec. The scattering phase function coefficients of pulverized-coal particles in flames. Office of Scientific and Technical Information (OSTI), December 1992. http://dx.doi.org/10.2172/10149865.

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Wolfe, C. R., J. D. Downie, and J. K. Lawson. Measuring the spatial frequency transfer function of phase measuring interferometers for laser optics. Office of Scientific and Technical Information (OSTI), June 1996. http://dx.doi.org/10.2172/281674.

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Ulaby, Fawwaz T. Millimeter-Wave Measurements and Modelling of the Scattering Phase Function of Inhomogeneous Media. Fort Belvoir, VA: Defense Technical Information Center, July 1991. http://dx.doi.org/10.21236/ada244494.

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Michie, Mark W., Richard A. Angerhofer, Mary P. Barlow, and Patricia A. Beall. Effects of Ingestion of Zinc Naphthenate on the Reproduction Function of Rats. Phase 5. Fort Belvoir, VA: Defense Technical Information Center, February 1988. http://dx.doi.org/10.21236/ada235224.

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Calmus, R. B. Design requirements document for the interim store phase I solidified high-level waste function 4.2.4.1.2. Office of Scientific and Technical Information (OSTI), September 1996. http://dx.doi.org/10.2172/328484.

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Hedrick, Jacob, and Timothy Jacobs. PR-457-14201-R02 Variable NG Composition Effects in LB 2S Compressor Engines Phase I Engine Response. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), August 2015. http://dx.doi.org/10.55274/r0010997.

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This is the final report summarizing work completed during the first phase of the PRCI study on large bore two stroke lean burn integral compressor engine response to variable natural gas compositions for the purposes of engine control development. Accomplished tasks include the completion of a detailed literature review covering the research topic, a parametric study of laminar flame speeds and ignition delays for binary methane and ethane mixtures up to 30%, and a GT-Power engine model of the Colorado State GMV-4 research engine with associated validation data from CSU�s variable ethane effects study. The chemistry of the combustion reaction is crucial to accurate modeling; laminar flame speeds and ignition delays as function of composition were determined from the solutions to published chemical kinetics mechanisms GRI-Mech3.0 and Saudi Aramco Mech1.3, respectively. The Wiebe coefficients correlated to variations in ethane composition and spark timing were regressed from the crank angle resolved heat release rates. The Wiebe coefficients are the most significant achievement of this phase of the project, since they quantify the heat release as a function of composition. At this time, the Wiebe parameters only reflect the relative changes in the model since certain aspect of the models geometry are pending resolution. Future phases of the project could use the developed GT-Power model and Wiebe coefficients for development of control schemes that maintain emissions, speed and torque limits, and maximize thermal efficiency during a variable fuel composition event.
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