Academic literature on the topic 'Morphological Parameter'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Morphological Parameter.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Journal articles on the topic "Morphological Parameter"
1
Davies, William D. "Morphological uniformity and the null subject parameter in adult SLA." Studies in Second Language Acquisition 18, no. 4 (December 1996): 475–93. http://dx.doi.org/10.1017/s0272263100015382.
Full textAbstract:
An area of keen interest in applying Chomsky's UG parameter-setting model to SLA has been the Pro-Drop or Null Subject Parameter (Cyrino, 1986; Hilles, 1986; Phinney, 1987; White, 1985, 1986). However, the nature of this parameter changes dramatically from the Jaeggli (1982) and Rizzi (1982) conception with Jaeggli and Safir's (1989) proposal linking uniform morphological agreement paradigms with null subjects. Data reported here show a number of L2 learners exhibit knowledge that English is morphologically nonuniform yet still accept English null subject sentences. This is inconsistent with the predictions of the Morphological Uniformity Hypothesis and renders uncertain its applicability to SLA. The results are considered in light of a number of possible positions that can be adopted when faced with data that disconfirm a hypothesis within the UG SLA research program; it is concluded that the Morphological Uniformity Hypothesis is disconfirmed and that any reformulation of the Null Subject Parameter must take these results into consideration.
2
Lalvani, Haresh. "Meta-Morphological Technique for a Multi-Parameter Design Index." International Journal of Space Structures 8, no. 4 (December 1993): 241–49. http://dx.doi.org/10.1177/026635119300800402.
Full textAbstract:
Complex design and morphologic problems, consisting of multiple parameters, can be described, modelled and indexed using a meta-morphological technique presented here. All design and morphologic variables can be mapped in Euclidean n-dimensional space, where n is the number of variables. This meta-space contains all the possible solutions to the problem and each point in this solution n-space is a candidate solution. The desired solution, represented by a specific point in this space and coded (addressed) by its n-dimension Cartesian co-ordinates, is ranked by the hyper-distance of this point from the origin. The hyper-distance itself provides a design index (or hyper-index) of the solution and can be determined by the known hyper-Pythagorean theorem. The procedure is recursive and applies to complex design problems which are hierarchical and composed of problem-within-problem-within-problems. Here the parameters are composed of subparameters, and the solutions are correspondingly mapped in a recursive, fractal n-cube composed of sub-cubes composed of sub-sub-cubes. The total composite index is determined by the recursive application of the hyper-Pythagorean theorem and represents a quantification of the morphological complexity of the design. The model is independent of the design problem, and has attractive possibilities for application in computer-aided design environments. The application is shown with the hypothetical selection of a space frame from a number of alternatives.
3
Kvesić, Stjepan, Mirzeta Memišević Hodžić, Matijaž Čater, and Dalibor Ballian. "Morphologic variability of the Acer campestre L. populations in Bosnia and Herzegovina." Acta Biologica Sibirica 7 (November 15, 2021): 327–43. http://dx.doi.org/10.3897/abs.7.e73001.
Full textAbstract:
Morphologic variability from 25 populations of Acer campestre L. in Bosnia and Herzegovina was analyzed. Morphometric structure of variability and between-population variability was performed based on 10 fruit-parameter characteristics and 19 leaf-parameter characteristics using multivariate statistical analysis. Results confirmed the separation of three submediterranean populations as a group in relation to other tested populations, from which the Banja Luka population is different. Measured leaf parameters were confirmed as a predominant carrier of the morphologic separation between populations. In other Acer species populations within A. monspessulanum and A. intermedium species are separated mainly by fruit and much less by leaf parameters. The southernmost submediterranean populations from Trebinje, Ljubuški, and Mostar regions have smaller leaf areas, which consequently places them within the same morphologic group; their variability is in tight connection with eco-geo-graphical factors, where the ecological distance is a much better predictor of morphological variability compared to geographical distance. The air temperature had the biggest influence on morphological variability regarding the highest in-between correlation. Achieved results may serve for the continuation of the research in other areas of Acer campestre to determine the interactive effect of ecological, geographical, climatic, and migrational factors on their morphologic population plasticity.
4
Wei, Xile, Xiaowei Yin, Meili Lu, Guosheng Yi, and Jiang Wang. "Dependence of sinusoidal electric field effect on neuronal morphological properties." International Journal of Modern Physics B 29, no. 15 (May 25, 2015): 1550092. http://dx.doi.org/10.1142/s0217979215500927.
Full textAbstract:
In this paper, the neuronal firing patterns under extracellular sinusoidal electric field (EF) are investigated based on a reduced two-compartment model with focus on the effects of morphological and internal coupling parameters. We observe that the neuron can exhibit bursting, synchronous firing and subthreshold oscillation depending on EF amplitude A and frequency f. Furthermore, neuronal firing properties change obviously over a range of morphological parameter p. As p increases, the firing region expands first and then diminishes gradually until it disappears in the observed (A, f) parameter space and the transition from bursting to synchronous firing is also markedly distinct. Meanwhile, the morphological parameter also has significant effects on the EF threshold for triggering neuronal spikes. Unlike morphological parameter, though the internal coupling conductance gc can also induce some changes in firing behavior and EF threshold, it cannot qualitatively change neuronal dynamical properties. All these results demonstrate that neuronal morphology plays a crucial role in neuronal responses to sinusoidal EF.
5
Yamauchi, Chisato, Shin-ichi Ichikawa, Mamoru Doi, Naoki Yasuda, Masafumi Yagi, Masataka Fukugita, Sadanori Okamura, Osamu Nakamura, Maki Sekiguchi, and Tomotsugu Goto. "Morphological Classification of Galaxies Using Photometric Parameters: The Concentration Index versus the Coarseness Parameter." Astronomical Journal 130, no. 4 (October 2005): 1545–57. http://dx.doi.org/10.1086/444416.
Full text
6
Pramudita, Listya, Eny Widajati, Faiza Chairani Suwarno, and Dan Memen Surahman. "Karakteristik Morfologi Benih sebagai Parameter untuk Penentuan Pohon Induk Sumber Benih Pala (Myristica fragrans Houtt.)." Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) 45, no. 1 (May 9, 2017): 64–70. http://dx.doi.org/10.24831/jai.v45i1.13755.
Full textAbstract:
Nutmeg is an Indonesian native plant, produces essential oill as an export commodity. However, it has low seed uniformity that mengurangi keseragaman tanaman di lapang. The main objective of this research was to obtain morphological characteritics as parameter for nutmeg mother plants selection. This field research was carried out from August-December 2014 at Toisapu, Wakal and Lula nutmeg seed source plantations in Ambon, and Seed Storage and Testing Laboratory, IPB. Characterization was undertaken on ten mother plants from each Wakal and Lula seed source plantations and eight mother plants from Toisapu seed source plantation. Quantitative and qualitative characters of vegetative, fruit, mace and seed from every mother plants were analyzed with Gower’s similarity test. Mother plants that produced high uniformity seed was the 7th (0.80), the 8th (0.93) and the 10th (0.80) mother plants in Wakal; the 2nd (0.80) mother plant in Toisapu; the 2nd (0.82), the 5th (0.80), the 6th (0.82), the 8th (0.84), the 9th (0.80) and the 10th (0.93) mother plants in Lula. Those selected mother plants produced morphological uniform seed morphologically. Lula seed plantation had the highest uniformity level among mother plants (0.77-0.87) compared to Toisapu (0.70-0.87) and Wakal (0.69-0.84) mother plants. The morphological characteristic can be use to select the source seed mother plants which able to produce high morphological uniformity seeds.Keywords: Gower’s similarity, seed production, uniformity
7
Kroon, Anna, Matthieu De Schipper, and Stefan Aarninkhof. "QUANTIFICATION OF PARAMETER AND CALIBRATION UNCERTAINTY IN MORPHOLOGICAL MODELLING." Coastal Engineering Proceedings, no. 36 (December 30, 2018): 27. http://dx.doi.org/10.9753/icce.v36.sediment.27.
Full textAbstract:
There are different sources of uncertainty in morphological modeling on time scales of years. The standard deterministic modelling approach does not provide any information on the amount of uncertainty contained in a forecast. This lack of information could provide a false sense of accuracy and skill. Quantitative insight in these prediction uncertainties is therefore of crucial importance for decision making in coastal engineering and management.
8
Tobin, Anne-Elise, and Ronald L. Calabrese. "Endogenous and Half-Center Bursting in Morphologically Inspired Models of Leech Heart Interneurons." Journal of Neurophysiology 96, no. 4 (October 2006): 2089–106. http://dx.doi.org/10.1152/jn.00025.2006.
Full textAbstract:
Based on a detailed morphology “Full Model” of a leech heart interneuron, we previously developed a computationally efficient, morphologically inspired “Reduced Model” to expedite tuning the model to produce endogenous bursting and alternating bursting when configured as a half-center oscillator (paired with reciprocally inhibitory synapses). To find conductance density distributions that produce endogenous bursting, we implemented a genetic algorithm automated parameter search. With multiple searches, we found eight parameter sets that produced endogenous bursting in the Reduced Model. When these parameter sets were applied to the Full Model, all produced endogenous bursting, although when the simulation time was extended from 80 to 300 s, only four parameter sets produced sustained bursting in the Reduced Models. All parameter sets produced alternating half-center bursting in the Reduced and Full Models throughout the entire 300 s. When conductance amplitudes were systematically varied for each of the four sustained burster sets, the effects on bursting activity differed, both for the same parameter set in the Reduced and Full Models and for different parameter sets with the same level of morphological detail. This implies that morphological detail can affect burst activity and that these parameter sets may represent different mechanisms for burst generation and/or regulation. We also tested the models with parameter variations that correspond to experimental manipulations. We conclude that, whereas similar output can be achieved with multiple different parameter sets, perturbations such as conductance variations can highlight differences. Additionally, this work demonstrates both the utility and limitations of using simplified models to represent more morphologically accurate models.
9
Devitt, D. A., and R. L. Morris. "Morphological Response of Flowering Annuals to Salinity." Journal of the American Society for Horticultural Science 112, no. 6 (November 1987): 951–55. http://dx.doi.org/10.21273/jashs.112.6.951.
Full textAbstract:
Abstract Ten flowering annuals were greenhouse-grown and irrigated with four levels of saline water [electrical conductivities (EC) = 0.8, 1.5, 3.0, 4.5 dS·m−1] to determine their response to increased salinization. Twelve different parameters were monitored at the end of an 8-week period. All 10 species differed in their response to salinization. The relative number of flowers and the relative maximum flower diameter at harvest decreased significantly for six of ten and seven of nine species, respectively, with increased salinity. A salt tolerance scale was devised that best described their response to salinity. The parameters selected were dry weight, plant height, number of flowers, and maximum flower diameter. Cosmos (Cosmos bipinatus Cav. ‘Sunny Gold’) was rated very sensitive for all four parameters. Following Cosmos, the rating changed and so did the sequence, depending on the parameter being considered. Both petunias (Petunia hybrida Linn. ‘White Cascade’ and ‘Challenger White’) and dianthus (Dianthus chinensis Linn. ‘Princess White’) were the only species rated very tolerant for all four parameters.
10
McKENZIE, J., S. MARSHALL, A. J. GRAY, and E. R. DOUGHERTY. "MORPHOLOGICAL TEXTURE ANALYSIS USING THE TEXTURE EVOLUTION FUNCTION." International Journal of Pattern Recognition and Artificial Intelligence 17, no. 02 (March 2003): 167–85. http://dx.doi.org/10.1142/s0218001403002290.
Full textAbstract:
This paper develops a new technique for modeling and classifying a growing texture using its evolution function over time. It encompasses morphological texture classification and parameter estimation with the objective of assessing the state of growth achieved by the texture using only a small sample set to train on, consistent with many real world situations for quality control. It is assumed that the texture model evolves over time according to the way in which its evolution function determines the parameters of its defining random process. This paper considers the random Boolean model for both binary and gray-scale images. A multiple linear regression model is used to estimate the Boolean model parameters as functions of the granulometric moments of the textures. Once the texture-model parameters are estimated, the time of the process can be found via the manner in which the parameters are determined by the dynamic evolutionary model.
Dissertations / Theses on the topic "Morphological Parameter"
1
Hasan, Md Mehedi. "Genetic investigation of body morphological traits in Penaeus monodon and their relationship to shrimp production." Thesis, The University of Sydney, 2022. https://hdl.handle.net/2123/29191.
Full textAbstract:
The black tiger shrimp (Penaeus monodon) is the second most commercially important aquaculture shrimp species in the world. In Australia, P. monodon aquaculture is a drought-proof industry and has an enormous potential for its economically and environmentally sustainable expansion. However, a significant research gap needs to be addressed for implementation of advanced breeding programs. In the first two research chapters, I reported that, (i) most published studies have focused on genetic improvement of growth and survival traits, however there are few studies on body shape and body colour traits; (ii) significant G×E was present for survival traits (rg = 0.51 ± 0.09).
In the next chapters, I developed and optimized protocols for measuring morphological and body colour traits of shrimp from digital images. In the last research chapter, I performed quantitative genetic analyses of body size, shape and body colour traits. The genetic parameter estimates indicated that the body size and weight traits are moderately heritable (h2 : 0.28 to 0.36), and heritability of body shape traits were low (h2 : 0.003 to 0.09). A strong positive genetic correlation was revealed among the key body size and growth traits (rg = 0.96 to 0.99) suggesting genetic improvement of these traits can be done simultaneously. The heritability of the body colour traits ranged from 0.05 to 0.35, suggesting there is potential for genetic improvement of these traits. There was a strong genetic correlation between cooked and uncooked body colour, suggesting selection on live animals will improve the colour properties of cooked shrimp. Taken together, the findings of the current project will assist in designing future shrimp breeding programs.
2
Kleiva, Žilvinas. "Delfinariume laikomų Juodosios jūros delfinų (Tursiops truncatus ponticus) sveikatos tyrimų analizė." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2013. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2013~D_20131104_101530-39609.
Full textAbstract:
Delfinai yra jautrūs aplinkos sąlygoms gyvūnai. Norint išlaikyti delfinus, reikia sudaryti kuo geresnes laikymo sąlygas delfinariume, laiku nutatyti susirgimus, išsiaiškinti gaišimo priežastis. Tam reikia nustatyti individualius delfinų kraujo morfologinius ir biocheminius rodiklius bei jų kitimus susirgimų atvejais. Literatūroje daugiausia randami Atlanto (Tursiops truncatus) ir kitų rūšių delfinų įvairūs kraujo tyrimų duomenys. Tačiau nerasta duomenų apie skirtingų lyčių ir skirtingo amžiaus Juodosios jūros delfinų (Tursiops truncatus ponticus) kraujo rodiklius.
Darbo tikslas – nustatyti delfinariume laikomų Juodosios jūros delfinų (Tursiops truncatus ponticus) įvairių veiksnių įtaką kraujo rodikliams ir kvėpavimo funkcijai bei atlikti susirgimų ir gaišimų priežasčių analizę.
Darbo uždaviniai: 1. Nustatyti delfinariume laikomų sveikų delfinų kraujo fiziologinius morfologinius ir biocheminius parametrus, atsižvelgiant į amžių ir lytį. 2. Nustatyti baseinų dydžių (mažesnis – didesnis) įtaką delfinų patelių ir jų jauniklių kvėpavimo dažniui ir elgsenai postnataliniu periodu. 3. Išanalizuoti delfinų susirgimus ir jų dažnumą. 4. Nustatyti delfinų kraujo morfologinių ir biocheminių parametrų kitimą, atsižvelgiant į susirgimus. 5. Atlikti delfinų patologinius-anatominius, histopatologinius bei mikrobiologinius tyrimus, nustatyti gaišimo priežastis.
Šis darbas praplėtė mokslines žinias apie delfinariume laikomų Juodosios jūros delfinų (Tursiops truncatus ponticus) fiziologines... [toliau žr. visą tekstą]The aim of the thesis is to identify the influence of various factors on blood indices and breathing function of the Black sea dolphins (Tursiops truncatus ponticus) that are kept in dolphinariums and also to do analysis of the reasons of dolphins’ diseases and death. The goals of the thesis: 1. Determine the physiological morphological and biochemical parameters of the dolphins’ blood with regard to their age and sex. 2. Determine the influence of the size of the pools on the respiratory rate of dolphin females and calves during the postnatal period. 3. Analyze the diseases affecting dolphins and the frequency of their occurance. 4. Study morphological and biochemical changes in dolphins blood parameters with regard to the diseases. 5. Identify the causes of death through pathological, anatomical, histopathological and microbiological examinations. The research has broadened the scientific knowledge about the Black sea dolphins’ (Tursiops truncatus ponticus) physiological characteristics and pathological conditions. It has been found out that the size of a pool has influence over the Black sea dolphin females and calves' respiratory rate as well as behaviour. Bearing in mind that there are genetic differences among other Tursiops truncatus dolphins, in the current research healthy Black sea afalins’ blood physiological morphological and biochemical parameters have been identified with regard to their age and sex. It is the first time in Lithuania when the frequencies of... [to full text]
3
Hosseinian, Armin. "Numerical simulations of fluid flow through a single rough walled fracture." Thesis, Curtin University, 2011. http://hdl.handle.net/20.500.11937/1764.
Full textAbstract:
The morphological properties of rock fractures may have a significant influence on their hydromechanical behaviour. Fracture surface roughness could change the fluid flow regime from laminar to turbulent, while it causes the flow properties to deviate from cubic law for smooth channels due to a change in fracture equivalent hydraulic aperture. Different empirical (including the well known Joint Roughness Coefficient, JRC) and statistical methods have been proposed for surface roughness characterisation in an attempt to link them to the hydromechanical behaviour of fractures.This thesis aims to investigate the potential for assessment of fluid behaviour by studying its surface geometrical properties. D[subscript]R[subscript]1 and D[subscript]R[subscript]2, the 2D and 3D roughness parameters developed recently using Riemannian geometry, were used to correlate fracture geometry to its flow behaviour. Also, the 2D Riemannian isotropy parameter (I[subscript]R[subscript]2) was used to correlate surface roughness anisotropy with directionality in fluid flow behaviour along different directions.Numerical simulations in both 2D and 3D were performed assuming the laminar flow regime using FLUENT software. This assumption is, to a large extent, acceptable for situations where the height to length ratios of a fracture is very small. 2D analysis of synthetic profiles with different geometries demonstrated how a change in profile roughness can affect flow response, for example, the pressure drop. JRC flow channels developed in this work as combinations of pairs of JRC profiles were simulated numerically. The analysis results indicated that channels with a similar JRC average for the upper and lower walls but a different JRC profile number responded differently when they were subjected to fluid flow. Therefore, assuming special fluid properties, correlations developed using the pressure drop of a fracture can be estimated by its analogy to JRC flow channels.3D simulations of a corrugated plane were performed assuming different asperity height distributions, for fluid travelling along different directions with respect to surface geometry and at different shear displacements. No asperity contact and failure is assumed in the analysis performed in this work. D[subscript]R[subscript]2 analysis results of the corrugated plane indicated how fluid flow could be related to surface geometry. For instance, it was observed that the pressure drop was maximised along the direction of maximum roughness and reduced to its minimum along a perpendicular direction which shows anisotropy in fluid flow behaviour. Significant changes in pressure drop due to shear offset indicated the importance of fracture wall displacements with respect to each other. A detailed analysis of one synthetically generated surface, and also five surfaces with identical statistical parameters except their correlation distances being different, further confirmed the above concepts. This was followed by analysing a real rock like fracture which was studied elsewhere for fracture shear tests in the lab. Simulation of this surface was performed with particular interest in identifying the locations where the velocity magnitude reduced to nearly zero after the fracture was subjected to a shear offset corresponding to maximum shear stress. These areas were found to be very similar to the locations of asperity degradations as observed through lab experiments. The roughness analysis of the surface was in agreement with the correlation found between the mechanical and hydraulic behaviour of the surface.The results of this research demonstrate how detailed analysis of surface geometry could provide valuable information with respect to surface flow behaviour. Detailed discussions and interpretations of the results will be presented and various conclusions will be made.
4
Žiemelis, Audrius. "Morfologinio daugiareikšminimo statistiniais metodais parametrų tyrimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2010. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100615_084959-97619.
Full textAbstract:
Šiame darbe kuriamas įrankis, kuris padėtų nustatyti, kurios morfologinės žymos savybės yra svarbios sprendžiant lietuvių kalbos morfologinio daugiareikšmiškumo problemą. Morfologinio daugiareikšmiškumo problema išsprendžiama tuomet, kai pagal kontekstą vienam žodžiui priskiriama viena morfologinė žyma. Darbe naudojamas tekstynas, kurį sudaro daugiau nei 1.200.000 žodžių. Tekstyne žodžiams morfologines žymas nustatė ekspertas, o visos galimos žodžio morfologinės žymos buvo sugeneruotos su pagalbiniu įrankiu. Morfologinio daugiareikšmiškumo problemoms spręsti suprogramuotas ir taikytas Viterbi algoritmas, randantis tikėtiniausią sakinį atitinkančią kalbos dalių seką pagal sukurtus bigramų ar trigramų kalbos modelius. Atlikus testavimą naudojant dešimt kartų kryžminį patikrinimą, pasiekti toki rezultatai: • 90,10% – tikslumas, kuris parodo ar teisingai priskirta morfologinė žyma daugiareikšmiams žodžiams; • 96,39% – bendras tikslumas, kuris skaičiuojamas įtraukiant ir tuos žodžius, kurie turėjo tik vieną morfologinę žymą.In this research was developed tool, which helps to determine, which morphological mark attributes are important when solving problem of morphological ambiguity in Lithuanian language. Morphological ambiguity problem is solved, when one word is matched with one morphological mark. Research uses corpus, which contains over than 1.200.000 words. Morphological marks in the corpus were assigned by expert and list of all possible morphological marks was generated with other utility. There was developed and applied Viterbi algorithm to solve morphological ambiguity problem, which finds the most expected path of part of speeches by created bigram or trigram speech models. Testing was implemented using cross validation with 10 folds. There was achieved these results: • 90,10% – accuracy, which shows if morphological mark was correctly match with ambiguous word; • 96,39% – total accuracy, which calculated when included non-ambiguous words.
5
Masini, Alessandro. "Influence of the casting parameters on the membrane morphological characteristics." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/23058/.
Full textAbstract:
During the last century, the importance of membranes has increased drastically in our society; following this trend, their use in everyday life and in the industrial sector has dramatically rised. Consequently, membranes have been object of study in order to develop new material with new characteristics. This work aims at improving a current GVS portfolio-product, by developing a new filter based on alternative material and to substitute a competitor 3 membrane, whose production will be stopped due to the PerFluoroOctanoic Acid content, in a medical device that has to retain human urine. Firstly, the new polymer was studied, in order to understand how it affects membrane properties; once the basic information were obtained, we moved to analyze the influence of all the parameters in the solution preparation and in the casting process. Additionally, we have analyzed and selected the most appropriate membrane support and casting knife, to produce the most reliable membrane. Once we checked all the parameter, a first industrial trial was done based on the knowledge previously obtained; later, the trial has been analyzed to verify the stability of the product and to confirm the success of the industrial scale-up. The industrial trial has been compared with competitors’ membrane after urine test were carried out; the industrial trial showed superior results compared to the other membrane. Later we analyzed the impact of a standard laboratory testing protein on membranes, to observe if they were the main responsible for the pore occlusion after urine contact. Competitor 3 retains the same amount of protein of other membrane, for this reason, the hypothesis previously made was rejected.
6
Huang, Ruoyu. "3D Freehand Ultrasonography in Quantifying Muscle Morphological Parameters in Lower Extremity." Thesis, KTH, Skolan för kemi, bioteknologi och hälsa (CBH), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-294103.
Full textAbstract:
Muscle morphological parameters such as fascicle length (FL), pennationangle (PA) and physiologic cross-sectional area (PCSA) can provide an insightinto the reasons of the deteriorated muscle functions caused by pathologies.This study investigates the 3D structure of the lower leg muscles using 3Dfreehand ultrasound (3DfUS). This imaging modality uses a motion capturesystem to track the position of the US probe during acquisition and thusreconstruct the structure of the tissues in 3D. In this study, two subjects werescanned on the medial gastrocnemius (MG) and tibialis anterior (TA) musclesin the lower leg using 3DfUS system. The FL and PA of the muscles werecalculated and compared with the values previously measured using diffusiontensor imaging (DTI). The results using 3DfUS were averagely 19.2% largerin FL and 2.9%larger in PA. In conclusion, 3DfUS can successfully determinemuscle morphological parameters within a physiologically acceptable range.But the differences in FL observed between the two imaging modalities werequite big, which probably was due to the differences in sample size and area.The values can also differ greatly within the 3DfUS measurements as a resultof different manipulations during data processing, and the 3DfUS protocolneeds to be further improved in future studies.
7
Mackových, Marek. "Regresní analýza EKG pro odhad polohy srdce vůči měřicím elektrodám." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-220859.
Full textAbstract:
This work focuses on the regression analysis of morphological parameters calculated from the ECG for estimating the position of the heart to the measuring electrodes. It consists of a theoretical analysis of the problems of ECG recording and description of the data obtained from experiments on isolated animal hearts. On the theoretical part is followed by a description of the calculation parameters suitable for regression analysis and their application in the training and testing of the following regression models to estimate the position of the heart to the measuring electrode.
8
Longo, Federico. "Three-dimensional computation of femoral canine morphological parameters: from the theory to the surgery application." Doctoral thesis, Università degli studi di Padova, 2017. http://hdl.handle.net/11577/3426322.
Full textAbstract:
The present research was envisioned as a project defined by multiple studies that are strictly correlated each other. The report of the birth, development and practical application to the diagnostic and surgery fields of a novel 3D approach for the computation of femoral measurements was the first aim. Moreover, in the authors’ purpose the description of the translational value of the proposed procedure enhanced with its plausible utility to the daily practice of orthopaedic surgeons, represented another focal point.
In this sense, the research started from the validation of the 3D assessment of femoral morphometric parameters. Veterinary literature reports tons of papers describing several methodologies for obtaining femoral measurements through different diagnostic techniques. Furthermore, bibliography presents lot of angles values that are currently adopted and considered as reference parameters for most of the corrective osteotomies. Additionally, in the recent past an increased emphasis on 3D approach grown but little if any attention was devoted to 3D measurements. This trend represented in the authors’ mind the gap with the current knowledge and, thus, an area to be deeply investigated. Indeed, to the best of author knowledge, there were no papers documenting the assessment of 3D femoral axes and angles in veterinary medicine, with no 3D protocol described. In addition, currently available canine femoral measurements related to frontal, sagittal and transverse deformities have only been computed in bi-planar projections, whether acquired from 2D or 3D imaging models.
Therefore, starting from the accepted human methods and from the features definition in veterinary literature, we proposed a new approach.
The first study was designed to define a 3D methodology, introducing a consistent and quantitative method for the assessment of femoral morphometric parameters in 3D geometrical models. To validate the proposed approach, accurate geometric data were necessary and, therefore, we opted for meshes obtained by a 3D scanner, instead of CT images. Once the validation of the was stated, our focus was directed towards the evaluation of the precision of the proposed 3D protocol.
The validation of a novel diagnostic test requires verification of the repeatability, defined as the strength of agreement between repeated measurements of the same samples performed from one examiner, and the reproducibility as well, that express the same variance but between a group of observers.
Furthermore, the accuracy of the measurements indicates how close the measurements took with the investigated technique to a true value (gold standard). Therefore, a second project was designed to test the precision of three diagnostic techniques, two largely diffuse (Rx and TC) one recently introduced in veterinary (3D), for the measurement of femoral angles.
The second purpose of this study was the investigation of the potential application of the algorithm implemented in a computer-aided-design (CAD) software, using CT data. Considering that for the first study we worked with 3D scanner data, the main aim at this point of the research was represented by the enhancement of the presented 3D protocol for diagnostic purposes. In the author opinion, changing the source of data was necessary because of the availability of CT and MRI equipment in veterinary practice.
Finally, the last goal of this project was the translation of the application of 3D computation to the surgical field. The current research contemplates the fact that the augmented interest on 3D computation is not only relevant for diagnostic reasons, but also for surgery. Thus, the correlation between the diagnostic utility of the 3D approach and its plausible practice for surgery purposes was the object of the final study. The starting point was suggested by veterinary literature that reports in few papers the development and application of surgical devices used to perform assisted-correction of bone deformities.
These surgical tools are designed through 3D geometrical models and act both as precise intraoperative localizers of osteotomy corrective landmarks and surgical saw guides.
Three-dimensional assessment of a bone conformation may improve the understanding and evaluation of bone deformities and occurring joints malalignment. In this sense, the localization of the CORA as well as the accuracy of the orientation of the osteotomy-cutting plane may be significantly upgraded through a 3D approach.La tesi di dottorato presentata è stata concepita nell’ambito di un più ampio progetto che comprende molteplici studi tra loro intrinsecamente correlati. L’obiettivo principale del lavoro consiste nella descrizione delle basi teoriche, sviluppo nonchè applicazione pratica nel campo della diagnostica per immagine e chirurgia di un nuovo protocollo 3D utilizzato per la misurazione di angoli nel femore del cane. Lo scopo successivo è stato quello di descrivere il valore traslazionale della procedura analitica qui presentata. Il primo passo dell’intera ricerca è rappresentato dalla validazione della metodologia. Un nuovo algoritmo sviluppato consente, per mezzo di un CAD software di comune utilizzo (Rhinoceros), di eseguire la computazione di angoli in 3D. Il secondo step ha previsto la verifica della ripetibilità e della riproducibilità di tale metodica che è stata comparata con quelle più comuni effettuate con radiografia e Tac. Infine, con l’ultimo studio abbiamo traslato le basi teoriche in applicazione chirurgica andando a creare, per mezzo dell’algoritmo elaborato, delle dime chirurgiche. Questi strumenti intra-operatori sono molto utili durante la chirurgia per le osteotomie correttive in quanto si accoppiano perfettamente nel punto di deformità e consentono di guidare l’osteotomia dell’osso.
9
Hendrickson, Eric B. "Morphologically simplified conductance based neuron models: principles of construction and use in parameter optimization." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/33905.
Full textAbstract:
The dynamics of biological neural networks are of great interest to neuroscientists and are frequently studied using conductance-based compartmental neuron models. For speed and ease of use, neuron models are often reduced in morphological complexity. This reduction may affect input processing and prevent the accurate reproduction of neural dynamics. However, such effects are not yet well understood. Therefore, for my first aim I analyzed the processing capabilities of 'branched' or 'unbranched' reduced models by collapsing the dendritic tree of a morphologically realistic 'full' globus pallidus neuron model while maintaining all other model parameters. Branched models maintained the original detailed branching structure of the full model while the unbranched models did not. I found that full model responses to somatic inputs were generally preserved by both types of reduced model but that branched reduced models were better able to maintain responses to dendritic inputs. However, inputs that caused dendritic sodium spikes, for instance, could not be accurately reproduced by any reduced model. Based on my analyses, I provide recommendations on how to construct reduced models and indicate suitable applications for different levels of reduction. In particular, I recommend that unbranched reduced models be used for fast searches of parameter space given somatic input output data.
The intrinsic electrical properties of neurons depend on the modifiable behavior of their ion channels. Obtaining a quality match between recorded voltage traces and the output of a conductance based compartmental neuron model depends on accurate estimates of the kinetic parameters of the channels in the biological neuron. Indeed, mismatches in channel kinetics may be detectable as failures to match somatic neural recordings when tuning model conductance densities. In my first aim, I showed that this is a task for which unbranched reduced models are ideally suited. Therefore, for my second aim I optimized unbranched reduced model parameters to match three experimentally characterized globus pallidus neurons by performing two stages of automated searches. In the first stage, I set conductance densities free and found that even the best matches to experimental data exhibited unavoidable problems. I hypothesized that these mismatches were due to limitations in channel model kinetics. To test this hypothesis, I performed a second stage of searches with free channel kinetics and observed decreases in the mismatches from the first stage. Additionally, some kinetic parameters consistently shifted to new values in multiple cells, suggesting the possibility for tailored improvements to channel models. Given my results and the potential for cell specific modulation of channel kinetics, I recommend that experimental kinetic data be considered as a starting point rather than as a gold standard for the development of neuron models.
10
Maranhão, Maria Olivia Amato. "Variações geomorfológicas inter-decadais da Barreira Costeira do Itapocú – SC, Brasil." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2015. http://hdl.handle.net/10183/132265.
Full textAbstract:
A Barreira Costeira do Itapocú está localizada na porção norte do litoral do estado de Santa Catarina sobre os domínios dos municípios de Araquari e Barra Velha. Em sua porção central a barreira apresenta-se segmentada por influência da desembocadura do rio Itapocú. Registros históricos evidenciam a ocorrência comum, na barreira, de episódios de transposição de sedimentos devido à ocorrência de eventos de sobrelavagem. A barreira e os subambientes associados foram mapeados para os anos de 1938, 1957, 1978, 2005 e 2012. Adicionalmente, foram aplicados três índices de vulnerabilidade para os depósitos de sobrelavagem, conforme metodologia proposta por Garcia et al. (2010) – OSR, MOIR e CBO, e foram analisados os parâmetros granulométricos do sistema praia-duna atual e dos depositos de sobrelavagem em dois perfis transversais à barreira. A análise geomorfológica mostrou que as principais modificações observadas ao longo do tempo na BCI estiveram relacionadas à migração do canal de conexão da laguna com o oceano, anteriormente à sua fixação, bem como a eventos de sobrelavagem da barreira. Os depósitos de sobrelavagem apresentaram elevada frequência de ocorrência ao longo da barreira (OSR), onde a maior pôde ser observada no ano de 1957, atingindo 42% de todo o comprimento da barreira, em seu setor sul, e 60% no setor norte. Este padrão apresentou diminuição ao longo do tempo, e em 2012 cerca de 1% do comprimento do setor sul da barreira costeira apresentou sobrelavagem, enquanto o setor norte exibiu 19%. MOIR, índice referente às intrusões históricas de sobrelavagem e representando a recorrência de um máximo de intrusão, foi aplicado em intervalos de 10 metros e mostrou que eventos de transposição de sedimentos tendem a ocorrer todos os anos na área estudada, atingindo até 40 metros de intrusão. Para o ultimo ano de análise, 2012, o índice CBO apresentou três casos de valor máximo, indicando máxima vulnerabilidade de um rompimento da barreira costeira. No estudo comparativo entre os diferentes compartimentos do sistema praia-duna e dos depósitos de sobrelavagem não foi possível distinguir um claro padrão entre os subambientes com base nos parâmetros granulométricos. Entretanto, este padrão de não distinção pode indicar a usual influência de processos marinhos costeiros de sobrelavagem, atuantes sobre o sistema deposicional eólico.The Itapocú coastal barrier is located in the northern coast of Santa Catarina State, on the domain of Barra Velha and Araquari cities. In its central part the barrier is segmented due to the influence of the Itapocú river mouth. Historical records demonstrate that the barrier experiments frequent overwash events. The barrier and associated environments were mapped for 1938, 1957, 1978, 2005 and 2012 dates. Additionally, three vulnerability indexes to the washover deposits were applied, according to Garcia et al. (2010) – OSR, MOIR and CBO, and the granulometric properties were analyzed for the modern beach-dune system and washover deposits in two cross sections. The morphological analysis showed that the main changes observed were related to inlet migration, before its fixation in 2011, and also to overwash events. The washover deposits showed high frequency of occurrence along the barrier (OSR), with the greater occurring in 1957, reaching 42% of its entire length in the south, and 60% in the north section. This pattern presented a decrease behavior over time, and in 2012 approximately 1% of the barrier length was overwashed in the south section and 19% in the north. The index MOIR, related to historical sediment intrusions of overwash processes, and representing a maximum intrusion was applied in 10m intervals and showed that washover events tend to occur in all years in the ICB, reaching 40m of intrusion. For the last year analyzed, 2012, the CBO index showed 3 situations of maximum intrusion, indicating 100% of barrier breaching vulnerability. In the comparative granulometric study, it was not possible to characterize the environmental deposits based on the granulometric parameters. However, non-discretize pattern can indicate the influence of coastal marine processes (overwash) acting over the eolian deposits.
Books on the topic "Morphological Parameter"
1
Borg, Erik. Noise-induced hearing loss: Literature review and experiments in rabbits : morphological and electrophysiological features, exposure parameters and temporal factors, variability and interactions. Oslo: Scandinavian University Press, 1995.
Find full text
2
Reintges, Chris H., and Sonia Cyrino. Analyticization and the syntax of the synthetic residue. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198747307.003.0010.
Full textAbstract:
Current understanding of syntactic variation and change relies on the notion of parameters of varying magnitude (micro- and macroparameters). This chapter focuses on the flipside of parameter change, namely the retention and survival of synthetic morphological structure in a context of widespread analyticization. The global effects of synthetic-to-analytic drift are examined in two diachronic scenarios: one in which the process has almost, though not entirely been completed (Coptic Egyptian), and another one in which the process is still under way (Brazilian Portuguese). Coptic has gone very far in abandoning its former synthetic features and thus exhibits a high degree of analyticity. In Brazilian Portuguese, the analyticization process is an advanced state, with synthetically inflected tenses exhibiting a decreasing productivity and gradually being replaced by the corresponding auxiliary verb constructions in the spoken language. The restriction on verb movement is a side effect of ongoing analyticization that affects language’s word order.
3
Fortescue, Michael. What are the Limits of Polysynthesis? Edited by Michael Fortescue, Marianne Mithun, and Nicholas Evans. Oxford University Press, 2017. http://dx.doi.org/10.1093/oxfordhb/9780199683208.013.14.
Full textAbstract:
Of the various labels for morphological types currently in use by typologists ‘polysynthesis’ has proved to be the most difficult to pin down. For some it just represents an extreme on the dimension of synthesis (one of Sapir’s two major typological axes), while for others it is an independent category or parameter involving incorporation and bound pronominals with far-reaching morphosyntactic ramifications. If the nub of polysynthesis is the packing of a lot of material into single verb forms that would be expressed as independent words in less synthetic languages, what exactly is the nature of and limitations on this ‘material’? This chapter investigates the limits—both upwards and downwards—of what the term is generally understood to cover and suggests a rule-of-thumb definition. Cognitive constraints on its maximal extent are also considered.
4
Sims, Andrea D., Adam Ussishkin, Jeff Parker, and Samantha Wray, eds. Morphological Diversity and Linguistic Cognition. Cambridge University Press, 2022. http://dx.doi.org/10.1017/9781108807951.
Full textAbstract:
Morphological structures interact dynamically with lexical processing and storage, with the parameters of morphological typology being partly dependent on cognitive pathways for processing, storage and generalization of word structure, and vice versa. Bringing together a team of well-known scholars, this book examines the relationship between linguistic cognition and the morphological diversity found in the world's languages. It includes research from across linguistic and cognitive science sub-disciplines that looks at the nature of typological diversity and its relationship to cognition, touching on concepts such as complexity, interconnectedness within systems, and emergent organization. Chapters employ experimental, computational, corpus-based and theoretical methods to examine specific morphological phenomena, and an overview chapter provides a synthesis of major research trends, contextualizing work from different methodological and philosophical perspectives. Offering a novel perspective on how cognition contributes to our understanding of word structure, it is essential reading for psycholinguists, theoreticians, typologists, computational modelers and cognitive scientists.
5
Harley, Heidi. The “bundling” hypothesis and the disparate functions of little v. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198767886.003.0001.
Full textAbstract:
Following Pylkkänen (2002), among others, many of the functions of the vP have been distributed between two independent projections: VoiceP and vP. Pylkkänen proposed a “bundling” parameter: some languages project a single bundled Voice/vP, and all functions depend on that single projection, and others project VoiceP and vP separately, and functions are distributed. The chapter first reviews the roles ascribed to these projections: (i) external argument introduction, (ii) event argument introduction, (iii) accusative case checking, (iv) introduction of causative or inchoative semantics, (v) verbalizing of nonverbal material, and (vi) demarcating a cycle. The chapter then reviews support for Pylkkänen’s parametric view of Voice-bundling from, e.g., Hiaki, Turkish, Korean, and English. Results on causatives from Key (2013) and Jung (2014) suggest that the projection sequence dominating v may form part of a predetermined projection hierarchy. The constraint against stacking productive morphological causatives may thus be attributed to the extended verbal projection.
6
Dabir-Moghaddam, Mohammad. Typological Approaches and Dialects. Edited by Anousha Sedighi and Pouneh Shabani-Jadidi. Oxford University Press, 2018. http://dx.doi.org/10.1093/oxfordhb/9780198736745.013.3.
Full textAbstract:
Modern Persian reveals interesting typological properties. In terms of word order parameters, it has grammaticalized a number of OV-type and a number of VO-type parameters. As this mixed typological behaviour can be attested in Old Persian and Middle Persian, the implications of this observation for typology, formal linguistics, and theories of language change are worth pursuing. The agreement system of Modern Persian is Nominative-Accusative. However, the majority of Modern Iranian languages are split in this respect. Morphologically, Modern Persian is analytic. This morphological type can be observed in Middle Persian as well. This two-millennium-old typological property gives Persian a distinct place within the Indo-European languages. As Persian is spoken in a widespread geographical area, there are many Persian dialects currently in use. A number of grammatical features of Tajik Persian, Afghan (Dari) Persian, Isfahani Persian, and Gha’eni Persian are briefly mentioned.
7
Arkadiev, Peter, and Francesco Gardani, eds. The Complexities of Morphology. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780198861287.001.0001.
Full textAbstract:
The volume deals with the multifaceted nature of morphological complexity understood as a composite rather than unitary phenomenon as it shows an amazing degree of crosslinguistic variation. It features an Introduction by the editors that critically discusses some of the foundational assumptions informing contemporary views on morphological complexity, eleven chapters authored by an excellent set of contributors, and a concluding chapter by Östen Dahl that reviews various approaches to morphological complexity addressed in the preceding contributions and focuses on the minimum description length approach. The central eleven chapters approach morphological complexity from different perspectives, including the language-particular, the crosslinguistic, and the acquisitional one, and offer insights into issues such as the quantification of morphological complexity, its syntagmatic vs. paradigmatic aspects, diachronic developments including the emergence and acquisition of complexity, and the relations between morphological complexity and socioecological parameters of language. The empirical evidence includes data from both better-known languages such as Russian, and lesser-known and underdescribed languages from Africa, Australia, and the Americas, as well as experimental data drawn from iterated artificial language learning.
8
Peverill, KI, LA Sparrow, and DJ Reuter, eds. Soil Analysis: An Interpretation Manual. CSIRO Publishing, 1999. http://dx.doi.org/10.1071/9780643101357.
Full textAbstract:
Soil Analysis: An Interpretation Manual is a practical guide to soil tests. It considers what soil tests are, when they can be used reliably and consistently, and discusses what limits their application. It is the first nationally accepted publication that is appropriate for Australian soils and conditions.
The first three chapters review the general principles and concepts of soil testing, factors affecting soil test interpretation and soil sampling and handling procedures. The next two chapters describe morphological indicators of soil and include colour plates of major Australian agricultural soils.
These are followed by a series of chapters which present soil test calibration data for individual elements or a related group of tests such as the range of soil tests used to interpret soil acidity. Each of these chapters also summarises the reactions of the particular element or parameter in the soil and describes the tests commonly used in Australia.
The final chapter presents a structured approach to nutrient management and making fertiliser recommendations using soil test data.
The manual will be of particular interest to soil and environmental scientists, farm advisers, consultants and primary producers who will find the manual an essential reference to understanding and interpreting soil test data. Many of the soil tests evaluated in the book are used throughout the world.
Soil Analysis: An Interpretation Manual was commissioned and developed by the Australian Soil and Plant Analysis Council (ASPAC). It comprises the work of 37 experts, which has been extensively peer reviewed.
9
Rosenhek, Raphael, Robert Feneck, and Fabio Guarracino. Aortic valve disease. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780199599639.003.0014.
Full textAbstract:
Echocardiography is the gold standard for the assessment of patients with aortic valve (AoV) disease. It allows a detailed morphological assessment of the AoV and thereby makes determination of the aetiology possible. In general, the quantification of aortic stenosis is based on the measurement of transaortic jet velocities and the calculation of AoV area, thus combining a flow-dependent and a flow-independent variable. In the setting of low-flow low-gradient AS, dobutamine echocardiography is of particular diagnostic and prognostic importance. The quantification of aortic regurgitation is based on qualitative and quantitative parameters. Awareness of potential pitfalls is fundamental. Haemodynamic consequences of AoV disease on left ventricular size, hypertrophy, and function as well as potentially coexisting valve lesions can be assessed simultaneously. In patients with AoV disease, predictors of outcome and indications for surgery are substantially defined by echocardiography.
10
Bjorkman, Bronwyn M., and Daniel Currie Hall, eds. Contrast and Representations in Syntax. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780198817925.001.0001.
Full textAbstract:
Syntactic contrasts, the systems of grammatical oppositions that exist within individual languages, are typically formally encoded in terms of features. The nature of syntactic contrast is tied to a fundamental question in generative syntactic theory: What is universal in syntax (and in language more generally), and what is variable? This volume explores the dual role of features, on the one hand defining a set of paradigmatic contrasts, and other the other hand acting as the building blocks of syntactic structures and the drivers of syntactic operations. In both roles, features are increasingly seen as the locus of parametric variation. The identification of parameters with features has opened up new possibilities for exploring connections between the morphological system of a language and its syntax, and suggests a new role for featural contrast in syntactic theory. The papers collected here represent a diversity of topics, perspectives, and concerns, but are united by an interest in morphosyntactic representations, and in the formal encoding of syntactic contrasts.
Book chapters on the topic "Morphological Parameter"
1
Gràcia, Lluïsa, and Miren Azkarate. "Prefixation and the head-complement parameter." In Morphological Analysis in Comparison, 61. Amsterdam: John Benjamins Publishing Company, 2000. http://dx.doi.org/10.1075/cilt.201.04gra.
Full text
2
de Groot, Casper. "Morphological complexity as a parameter of linguistic typology: Hungarian as a contact language." In Studies in Language Companion Series, 191–215. Amsterdam: John Benjamins Publishing Company, 2008. http://dx.doi.org/10.1075/slcs.94.13gro.
Full text
3
Norberg, Ulla M. "Morphological Flight Parameters." In Zoophysiology, 61–64. Berlin, Heidelberg: Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-83848-4_4.
Full text
4
Shaus, Arie, and Eli Turkel. "Chan-Vese Revisited: Relation to Otsu’s Method and a Parameter-Free Non-PDE Solution via Morphological Framework." In Advances in Visual Computing, 203–12. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-50835-1_19.
Full text
5
Dutta, Prakhar, and J. B. Jeeva. "Automation of Malarial Cell Count and Stage Classification Using Morphological Operations and Variable Optimization Using Hyper-Parameter Tuning." In Advances in Automation, Signal Processing, Instrumentation, and Control, 2997–3003. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-8221-9_281.
Full text
6
Portal, M. Sánchez. "Morphological Parameters of Nearby Active and Normal Galaxies." In Highlights of Spanish Astrophysics II, 400. Dordrecht: Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-017-1776-2_124.
Full text
7
Abe, Tomoko, Hiroyuki Ichida, Yoriko Hayashi, Ryouhei Morita, Yuki Shirakawa, Kotaro Ishii, Tadashi Sato, Hiroki Saito, and Yutaka Okumoto. "Ion beam mutagenesis - an innovative and effective method for plant breeding and gene discovery." In Mutation breeding, genetic diversity and crop adaptation to climate change, 411–23. Wallingford: CABI, 2021. http://dx.doi.org/10.1079/9781789249095.0042.
Full textAbstract:
Abstract We have developed a unique technology for mutation induction of plants using energetic ion beams at the RI Beam Factory (RIBF) of Rikagaku Kenkyūjo (RIKEN) (Institute of Physical and Chemical Research). Ion beams effectively induce mutations at relatively low doses without severely inhibiting growth. The irradiation treatment can be given to various plant materials and mutation can be induced in a short time, between seconds and a few minutes. The linear energy transfer (LET) of ions depends on the nuclide and velocity. Since LET value affects the mutation frequency, it is an important parameter to determine the most effective irradiation condition in mutagenesis. We determined the most effective dose in each LET for mutation induction in imbibed rice seeds. Subsequently, we analysed the mutated DNA responsible for the phenotype in morphological mutants. Most of the mutations were small deletions of less than 100 bp. Irradiations of C-ions and Ne-ions are effective for plant breeding because of the very high mutation rate and sufficient energy to disrupt a single gene. On the other hand, all mutations induced by Ar-ion (290 keV/μm) irradiation were large deletions ranging from 176 bp to approximately 620 kb. The average number of mutations in the target exon regions was 7.3, 8.5 and 4.3 per M3 mutant plant in C-ions, Ne-ions and Ar-ions, respectively. The number of mutations induced by heavy-ion irradiation was relatively small. We could identify six responsible genes for eight mutants induced by C-ion and Ne-ion irradiations and two responsible genes for four mutants induced by Ar-ion irradiation. Three of these were genes not previously described.
8
Beger, H. G., and M. Büchler. "Outcome of Necrotizing Pancreatitis in Relation to Morphological Parameters." In Diagnostic Procedures in Pancreatic Disease, 130–32. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-71128-2_20.
Full text
9
Zárate, J. O., and R. Sampaolesi. "Morphological parameters of intraocular tumours taking part in ecographical tracings." In Documenta Ophthalmologica Proceedings Series, 281–92. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-0601-3_36.
Full text
10
Pedersen, L. G., and L. M. Ottosen. "Fine Recycled Concrete Aggregates Particle Morphological Parameters and Packing Properties." In Concrete Durability and Service Life Planning, 33–36. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-43332-1_7.
Full textConference papers on the topic "Morphological Parameter"
1
Yidan, Yao, Lin Chengda, Zhai Ruifang, and Chen Kun. "Rapeseed 3D reconstruction and morphological parameter measurement based on laser point cloud." In 2016 5th International Conference on Agro-geoinformatics (Agro-geoinformatics). IEEE, 2016. http://dx.doi.org/10.1109/agro-geoinformatics.2016.7577638.
Full text
2
Shroff, Urvi, Bindi Dave, and Shiv Mohan. "Synergetic Use of Morphological and Radar Parameter for Lunar Water Ice Detection." In IGARSS 2020 - 2020 IEEE International Geoscience and Remote Sensing Symposium. IEEE, 2020. http://dx.doi.org/10.1109/igarss39084.2020.9324319.
Full text
3
Aksoy, Huseyin G. "Effect of Morphology on Wave Propagation in Porous Materials." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-53043.
Full textAbstract:
In this study, effect of morphological parameters on wave propagation in bicontinuous porous nanostructures is studied by using numerical simulations. Computational results show that energy is localized on the surface independent of the morphological parameters. It is observed that localization length increases with the increase in frequency. In addition, surface roughness parameter and ligament diameter do not have significant influence on localization length.
4
Hu, Xinyu, Ronghong Chen, Daode Zhang, and Guangyou Yang. "Analysis of morphological character and technique of parameter extraction for microscopic pebrine image." In 2012 5th International Conference on Biomedical Engineering and Informatics (BMEI). IEEE, 2012. http://dx.doi.org/10.1109/bmei.2012.6513085.
Full text
5
Gonzalez-Lapea, Jesus, José R. Darias, Karem Noris-Suárez, and Ana H. Márquez. "A new morphological cell parameter based on optical phase for the evaluation of cell populations." In Interferometry XIX, edited by Michael B. North Morris, Katherine Creath, Jan Burke, and Angela D. Davies. SPIE, 2018. http://dx.doi.org/10.1117/12.2316632.
Full text
6
Uchayash, Sajid Mahfuz, Prosanto Biswas, Meah Imtiaz Zulkarnain, Ahmed Touhami, Nazmul Islam, and Hasina Huq. "Investigation of the Effect and Contribution of Process Parameters By Taguchi and ANOVA Analysis on the Morphological and Electrical Properties of RF Magnetron Sputtered SiO2 Over Si Substrate." In ASME 2021 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/imece2021-73849.
Full textAbstract:
Abstract In this work, we applied Taguchi Signal-to-noise (S/N) analysis to investigate the effect of varying three process parameters, namely — sputtering power, working pressure and Ar gas flow rate on the surface, morphological and electrical properties of the RF sputtered SiO2 over Si substrate. We also inspected the contribution of a particular process parameter on these properties by applying Analysis of Variance (ANOVA). SiO2 thin films were fabricated over Si substrate using RF magnetron sputtering system. Three sets of inputs for the three mentioned process parameters were chosen; for power, we chose 100W, 150W and 200W; 5mTorr, 10mTorr and 15mTorr were chosen for pressure and three Ar gas flow rate levels at 5, 10 and 15 sccm were selected. By performing Taguchi L9 orthogonal array, nine combinations of sputtering parameters were prepared for depositing SiO2/Si Thin films. The surface morphological and electrical properties (resistivity per unit area and capacitance per unit area) of the sputtered samples were therefore inspected by analyzing the Taguchi design of experiment. Signal-to-noise (S/R) analysis presents how the properties were affected by the variation of each process parameter. ANOVA analysis showed that sputtering power and working pressure are the two dominant process parameters contributing more to surface morphological and electrical properties. A regression model for surface roughness of the SiO2/Si thin film samples was also derived. The electrical properties of the SiO2/Si thin films, however, didn’t show linear properties.
7
Michopoulos, J. G., J. C. Steuben, A. J. Birnbaum, A. P. Iliopoulos, J. Aroh, A. D. Rollett, and B. Gould. "Morphological Analysis of 316L Laser Powder Bed Fusion Melt-Pool via the Enriched Analytical Solution Method." In ASME 2020 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/detc2020-22455.
Full textAbstract:
Abstract The recent development of the Enriched Analytical Solution Method (EASM) for evaluating the spatio-temporal distribution of the temperature fields generated during the Laser Powder Bed Fusion (LPBF) Additive Manufacturing (AM) processes is provides an opportunity to study the sensitivity of the morphological parameters characterizing the associated melt-pools as a function of process parameters. The present work exercises the EASM for the case of a single-path trace over a 316L base plate under LPBF heat deposition conditions. To assist in the evaluation of solidification parameters, the spatial derivatives of the EASM are also derived. A process parameter subspace spanned by the scan velocity and the laser power is considered and the EASM is utilized for deriving a number of geometrical morphological characteristics of the melt pool as well as the quantities controlling the evolution of the solidification front. Finally, comparisons with initial experimental results obtained by in-situ high speed synchrotron X-ray imaging, capturing the spatio-temporal evolution of the melt pool profile are also presented.
8
Ghidotti, Anna, Fabio Locatelli, Nicolò Belotti, Daniele Regazzoni, and Caterina Rizzi. "A Morphological Evaluation of Shoulder Parameters: A Medical Support Tool for the Diagnosis." In ASME 2022 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/detc2022-89974.
Full textAbstract:
Abstract Shoulder disorders are very common in the middle-aged population, due to several causes. The traditional diagnosis relies on the knowledge and the experience of the physician but a clinical misinterpretation in this early phase can have serious consequences for the patient’s health. The aim of this study is to investigate morphological shoulder parameters, as indicators of healthy or pathological conditions. In this way, it is possible to generate a quantitative report, based on measurements. It can be exploited as a medical support tool for physicians to either confirm the diagnosis, or to raise reasonable doubts, as far as the results differed. However, not all the shoulder disorders can be identified through this approach. Magnetic Resonance and Computed Tomography images of pathological shoulders have been employed for the study. The predefined morphological parameters have been measured on 2D medical images as well as from 3D reconstructed virtual model. Critical Shoulder Angle has been identified as the most significant parameter. It is well known that it is affected by Glenoid Inclination, Lateral Acromial Extension and Acromial Height. However, the contribution of each factor is not clear. Hence, a statistical analysis has been performed to understand how its sub-parameters influence it.
9
"Wave parameter classification based on morphological changes around a small wave-dominated tidal-inlet using a schematized Delft3D model." In 21st International Congress on Modelling and Simulation (MODSIM2015). Modelling and Simulation Society of Australia and New Zealand, 2015. http://dx.doi.org/10.36334/modsim.2015.f9.shaeri.
Full text
10
Huang, Huan, Natalie Baddour, and Ming Liang. "Effects of Parameter Selection on Oscillatory Behavior-Based Signal Decomposition for Bearing Fault Signature Extraction." In ASME 2016 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/detc2016-59391.
Full textAbstract:
Oscillatory Behavior-based Signal Decomposition (OBSD) is a new technique which employs Morphological Component Analysis (MCA) and the Tunable Q-factor Wavelet Transform (TQWT) to decompose a signal into components consisting of different oscillatory behaviors rather than different frequency bands or scales. Due to the low oscillatory transients of bearing fault-induced signals, this method shows promise for application to effectively extract bearing fault signatures from raw signals contaminated by interferences and noise. In this paper, the application of OBSD to bearing fault signature extraction is investigated. It is shown that the quality of the results obtained via the OBSD is highly dependent on the selection of method-related parameters. The effects of each parameter on the performance of the OBSD for bearing fault signature extraction are investigated. The analysis is also validated by implementing the OBSD on experimental data collected from a test rig with a defective bearing.
Reports on the topic "Morphological Parameter"
1
Schwartz, Daniel S., and Lav Tandon. Uncertainty in the use of MAMA software to measure particle morphological parameters from SEM images. Office of Scientific and Technical Information (OSTI), June 2017. http://dx.doi.org/10.2172/1361474.
Full text
2
Little, Charles, and David Biedenharn. Technical assessment of the Old, Mississippi, Atchafalaya, and Red (OMAR) Rivers : channel geometry analysis. Engineer Research and Development Center (U.S.), August 2022. http://dx.doi.org/10.21079/11681/45147.
Full textAbstract:
The Old River Control Complex (ORCC) consists of the Low Sill, Auxiliary, and Overbank structures as features of the Old River Control Structure (ORCS) and the privately owned hydro-electric power plant. Operations of the ORCC manage the hydrologic connectivity between the Mississippi River and the Atchafalaya River/Red River systems. The morphology of the Old, the Mississippi, the Atchafalaya, and the Red Rivers (OMAR) has been influenced by the flow distribution at the ORCC, as well as the accompanying bed sediments. A geomorphic assessment of the OMAR is underway to understand the morphological changes associated with operation of the ORCC. Supporting the geomorphic assessment, a channel geometry analysis herein documents observed adjustments of the affected river channels. Historical hydrographic survey data were used in the Geographic Information System to create river channel geometric models, which inform the analysis. Geometric parameters for cross sections and volume polygons were computed for each survey and evaluated for morphological trends which may be ascribed to the influence of the ORCC. Additionally, the geometric parameters for the Atchafalaya River were used to extend the geometry analyses from the 1951 Mississippi River Commission report on the Atchafalaya River, which was the primary catalyst for the initial development of the ORCS.
3
Goeckeritz, Joel, Nathan Schank, Ryan L Wood, Beverly L Roeder, and Alonzo D Cook. Use of Urinary Bladder Matrix Conduits in a Rat Model of Sciatic Nerve Regeneration after Nerve Transection Injury. Science Repository, December 2022. http://dx.doi.org/10.31487/j.rgm.2022.03.01.
Full textAbstract:
Previous research has demonstrated the use of single-channel porcine-derived urinary bladder matrix (UBM) conduits in segmental-loss, peripheral nerve repairs as comparable to criterion-standard nerve autografts. This study aimed to replicate and expand upon this research with additional novel UBM conduits and coupled therapies. Fifty-four Wistar Albino rats were divided into 6 groups, and each underwent a surgical neurectomy to remove a 7-millimeter section of the sciatic nerve. Bridging of this nerve gap and treatment for each group was as follows: i) reverse autograft—the segmented nerve was reversed 180 degrees and used to reconnect the proximal and distal nerve stumps; ii) the nerve gap was bridged via a silicone conduit; iii) a single-channel UBM conduit; iv) a multi-channel UBM conduit; v) a single-channel UBM conduit identical to group 3 coupled with fortnightly transcutaneous electrical nerve stimulation (TENS); vi) or, a multi-channel UBM conduit identical to group 4 coupled with fortnightly TENS. The extent of nerve recovery was assessed by behavioural parameters: foot fault asymmetry scoring measured weekly for six weeks; electrophysiological parameters: compound muscle action potential (CMAP) amplitudes, measured at weeks 0 and 6; and morphological parameters: total fascicle areas, myelinated fiber counts, fiber densities, and fiber sizes measured at week 6. All the above parameters demonstrated recovery of the test groups (3-6) as being either comparable or less than that of reverse autograft, but none were shown to outperform reverse autograft. As such, UBM conduits may yet prove to be an effective treatment to repair relatively short segmental peripheral nerve injuries, but further research is required to demonstrate greater efficacy over nerve autografts.
4
Goeckeritz, Joel, Nathan Schank, Ryan L Wood, Beverly L Roeder, and Alonzo D Cook. Use of Urinary Bladder Matrix Conduits in a Rat Model of Sciatic Nerve Regeneration after Nerve Transection Injury. Science Repository, December 2022. http://dx.doi.org/10.31487/j.rgm.2022.03.01.sup.
Full textAbstract:
Previous research has demonstrated the use of single-channel porcine-derived urinary bladder matrix (UBM) conduits in segmental-loss, peripheral nerve repairs as comparable to criterion-standard nerve autografts. This study aimed to replicate and expand upon this research with additional novel UBM conduits and coupled therapies. Fifty-four Wistar Albino rats were divided into 6 groups, and each underwent a surgical neurectomy to remove a 7-millimeter section of the sciatic nerve. Bridging of this nerve gap and treatment for each group was as follows: i) reverse autograft—the segmented nerve was reversed 180 degrees and used to reconnect the proximal and distal nerve stumps; ii) the nerve gap was bridged via a silicone conduit; iii) a single-channel UBM conduit; iv) a multi-channel UBM conduit; v) a single-channel UBM conduit identical to group 3 coupled with fortnightly transcutaneous electrical nerve stimulation (TENS); vi) or, a multi-channel UBM conduit identical to group 4 coupled with fortnightly TENS. The extent of nerve recovery was assessed by behavioural parameters: foot fault asymmetry scoring measured weekly for six weeks; electrophysiological parameters: compound muscle action potential (CMAP) amplitudes, measured at weeks 0 and 6; and morphological parameters: total fascicle areas, myelinated fiber counts, fiber densities, and fiber sizes measured at week 6. All the above parameters demonstrated recovery of the test groups (3-6) as being either comparable or less than that of reverse autograft, but none were shown to outperform reverse autograft. As such, UBM conduits may yet prove to be an effective treatment to repair relatively short segmental peripheral nerve injuries, but further research is required to demonstrate greater efficacy over nerve autografts.
5
Krafft, Douglas, Rachel Bain, Jack Cadigan, and Richard Styles. A review of tidal embayment shoaling mechanisms in the context of future wetland placement. Engineer Research and Development Center (U.S.), December 2022. http://dx.doi.org/10.21079/11681/46143.
Full textAbstract:
Wetland construction in tidally influenced embayments is a strategy for beneficial use of sediment dredged from nearby navigation channels. These projects have the potential to alter basin morphology, tidal hydrodynamics, and shoaling trends. This special report provides a broad review of the literature related to engineering-induced changes in tidal range, salinity, tidal prism, tidal asymmetry, and other known causes of shoaling. Each potential shoaling mechanism is then evaluated in the context of wetland placement to provide a foundation for future beneficial use research. Based on a compilation of worldwide examples, wetland placement may reduce tidal amplitude and enhance ebb current dominance, thus reducing shoaling rates in the channels. However, constructed wetlands could also reduce the embayment’s tidal prism and cause accelerated shoaling relative to the pre-engineered rate. Because constructed wetlands are often created in conjunction with navigation channel dredging, the system’s morphologic response to wetland construction is likely to be superimposed upon its response to channel deepening, and the net effect may vary depending on a variety of system-specific parameters. Planning for future wetland placements should include an evaluation of local hydrodynamic behavior considering these factors to predict site-specific response.