Relevant bibliographies by topics / Phenomenal Modifier

Academic literature on the topic 'Phenomenal Modifier'

Author: Grafiati
Published: 9 March 2023
Last updated: 10 March 2023

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Contents

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Phenomenal Modifier.'

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 "Phenomenal Modifier"

1

Khaydarov, Аnvar Аskarovich, and Mavluda Fayzulloyevna Norova. "CONNOTATIVE MEANINGS OF PHONE TIVE MEANINGS OF PHONETICALLY MODIFIED WORDS Y MODIFIED WORDS IN PRONUNCIATION." Scientific Reports of Bukhara State University 5, no. 5 (December 30, 2021): 45–55. http://dx.doi.org/10.52297/2181-1466/2021/5/5/4.

Full text
Abstract:
Introduction. The article is dedicated to the phonostylistic features of one of phonetic changes elision in English and Uzbek languages which occur in pronunciation. The connotative meanings conveyed with the omission of sound or syllables in the verbal root-stems of the compared languages are shown on the basis of well-grounded examples. The phonopragmatic aspects of the literary speech of elision are thoroughly analyzed and studied. The connotative meanings expressed in the case of syncope are also explained on the basis of evincive examples taken from English and Uzbek languages. Syncopic words and their making up the great number in English language, their providing poetic meter specific for rhythmic tone in the artistic image and its creating a sense of artistic impressionability in the reader are conceived in the article. Research methods. Among the language units there are also words that have undergone phonetic changes in pronunciation. From a phonostylistic point of view, the pronunciation of such words have additional, i.e. connotative meanings. Phonetically modified words are divided into two, that is, the increase and decrease of speech sound in the pronunciation of words. The phenomenon of so-called sound acquisition includes the phenomena of prosthesis, epenthesis, epithesis. The so-called sound omission includes aphaeresis, syncope, apocope, elision. Results and discussions. Connotative meanings occur in the pronunciation of words with the phenomenon of sound omission, such as aphaeresis, syncope, apocope, elision. The phonopragmatic phenomenon of syncope has been used not only in poetry but also in prose and drama. The phenomenon of apocope is characteristic of colloquial speech in both languages, revealing that they have a number of connotative meanings, such as love, caress, intimacy, diminution. The connotative meanings of the phenomenon elision in the comparative languages have been studied on the basis of examples taken from the fiction in both languages. Conclusion. Thus, the connotative meanings formed by the phenomenon of sound omission in the pronunciation of words are similar from point of variety and versatility. They express a number of connotative meanings in speech, such as brevity, excitement, rhythmic tone, rhyme adjustment, gentleness, passion.
APA, Harvard, Vancouver, ISO, and other styles
2

Chen, Fulang. "Can noun modifiers be stranded or extracted in Mandarin?" Proceedings of the Linguistic Society of America 7, no. 1 (May 5, 2022): 5248. http://dx.doi.org/10.3765/plsa.v7i1.5248.

Full text
Abstract:
This paper addresses the question of whether noun modifiers can be stranded or extracted in Mandarin. I argue that there is no positive evidence that noun modifiers can be stranded in Mandarin, and that noun modifiers cannot be extracted in Mandarin. Specifically, I show that the so-called "split NP" constructions, which are often taken to involve stranding of a noun modifier, should be subsumed under a phenomenon I refer to as "split partitivity". I further show that "split partitivity" does not involve left-branch extraction of a noun modifier, but involves extraction from Spec, DP, the "escape hatch" for extraction.
APA, Harvard, Vancouver, ISO, and other styles
3

Arbuzova, E. V., and A. D. Dolgov. "Explosive phenomena in modified gravity." Physics Letters B 700, no. 5 (June 2011): 289–93. http://dx.doi.org/10.1016/j.physletb.2011.05.030.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Kozera, Rafał, Bartłomiej Przybyszewski, Katarzyna Żołyńska, Anna Boczkowska, Bogna Sztorch, and Robert E. Przekop. "Hybrid Modification of Unsaturated Polyester Resins to Obtain Hydro- and Icephobic Properties." Processes 8, no. 12 (December 11, 2020): 1635. http://dx.doi.org/10.3390/pr8121635.

Full text
Abstract:
Ice accumulation is a key and unsolved problem for many composite structures with polymer matrices, e.g., wind turbines and airplanes. One of the solutions to avoid icing is to use anti-icing coatings. In recent years, the influence of hydrophobicity of a surface on its icephobic properties has been studied. This solution is based on the idea that a material with poor wettability maximally reduces the contact time between a cooled drop of water and the surface, consequently prevents the formation of ice, and decreases its adhesion to the surface. In this work, a hybrid modification of a gelcoat based on unsaturated polyester resin with nanosilica and chemical modifiers from the group of triple functionalized polyhedral oligomeric silsesquioxanes (POSS) and double organofunctionalized polysiloxanes (generally called multi-functionalized organosilicon compounds (MFSC)) was applied. The work describes how the change of modifier concentration and its structural structure finally influences the ice phobic properties. The modifiers used in their structure groups lowered the free surface energy and crosslinking groups with the applied resin, lowering the phenomena of migration and removing the modifier from the surface layer of gelcoat. The main studies from the icephobicity point of view were the measurements of ice adhesion forces between modified materials and ice. The tests were based on the measurements of the shear strength between the ice layer and the modified surface and were conducted using a tensile machine. Hydrophobic properties of the obtained nanocomposites were determined by measurement of the contact angle and contact angle hysteresis. As the results of the work, it was found that the modification of gelcoat with nanosilica and multi-functionalized silicone compounds results in the improvement of icephobic properties when compared to unmodified gelcoat while no direct influence of wettability properties was found. Ice adhesion decreased by more than 30%.
APA, Harvard, Vancouver, ISO, and other styles
5

GÜLCÜ ÜSTÜN, Nur Seda, and Ali KARAYAĞMURLU. "Dikkat eksikliği hiperaktivite bozukluğu olan bir ergende modifiye salımlı metilfenidat kaynaklı Raynaud fenomeni." Cukurova Medical Journal 47, no. 3 (September 30, 2022): 1381–83. http://dx.doi.org/10.17826/cumj.1121992.

Full text
Abstract:
Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder commencing before the age of 12 years and characterized by developmentally inappropriate inattention, hyperactivity, and/or impulsivity symptoms. Stimulants such as methylphenidate (MPH) are used as first-line therapy for children with ADHD. Psychostimulants may be associated with vascular problems. Raynaud’s phenomenon (RP) is a peripheral vasculopathy potentially associated with connective tissue diseases characterized by recurring reversible vasospasm attacks triggered by cold and emotional stress. Several cases have been published involving RP observed with MPH. The present report discusses a 14-year-old girl with ADHD who experienced RP with the addition of 10 mg modified-release MPH during 27 mg osmotic release (OROS)-MPH therapy, but not during 36 mg OROS-MPH therapy.
APA, Harvard, Vancouver, ISO, and other styles
6

You, Shaohua, Xiaofei Sun, and Xiaoyu Li. "Preparation of Modified Colloidal Gas Aphrons and Analysis of the Oil Displacement Effect." Applied Sciences 10, no. 3 (January 31, 2020): 927. http://dx.doi.org/10.3390/app10030927.

Full text
Abstract:
Colloidal gas aphrons (CGAs) offer some advantages in improving oil recovery, but resin and asphaltene deposition problems still occur in CGA flooding. Based on this phenomenon, a new modified colloidal foam system is developed by incorporating a modifier in CGA preparation. The results indicate that the modified CGAs prepared by adding foaming agent sodium dodecyl sulfate (SDS) (concentration: 5 g/L) and GXJ-C (a CGAs modifier from a light fraction of petroleum; concentration: 0.1 g/L) attained the best performance. Oil displacement experiments show that modified CGA flooding had a better effect than water or CGA flooding. There are two important mechanisms via which modified CGAs enhance oil recovery, including decreasing the interfacial tension and enhancing the heavy components in the recovered oil. The developed modified CGA system attained a good oil displacement effect, which is of guiding significance to further improve the oil displacement efficiency and application of foam flooding.
APA, Harvard, Vancouver, ISO, and other styles
7

Hébert, Mathieu, Fanny Dailliez, and Lionel Simonot. "Why a clear coating modifies halftone color prints." Electronic Imaging 2021, no. 5 (January 18, 2021): 131–1. http://dx.doi.org/10.2352/issn.2470-1173.2021.5.maap-131.

Full text
Abstract:
It can be easily observed that a white support printed with halftone ink layers changes color when coated with a clear layer. The color change can be explained by purely optical phenomena, for example the perception of a different amount of light scattered by the ink-matter interface if the observer is not too far from the specular direction. But color change can be also observed far from the specular direction, especially with halftone colors, where the support has not a homogeneous reflectance at the mesoscopic scale. This is due to subsurface optical phenomena investigated only recently in the case of uniformly colored support. In the present paper, thanks to an original optical model dedicated to halftone colors, we show that this subsurface phenomenon tends to increase the chance for light to meet several ink dots, therefore the chance to be absorbed.
APA, Harvard, Vancouver, ISO, and other styles
8

Takano, Yoshihide, and Kuo-Nan Liou. "Halo phenomena modified by multiple scattering." Journal of the Optical Society of America A 7, no. 5 (May 1, 1990): 885. http://dx.doi.org/10.1364/josaa.7.000885.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Sookyung, Uraiwan, Woothichai Thaijaroen, Norbert Vennemann, and Charoen Nakason. "Influence of the Type of Alkylamine Organic Modifiers on Thermal Mechanical Behavior and other Related Properties of Natural Rubber/Clay Nanocomposites." Advanced Materials Research 844 (November 2013): 217–20. http://dx.doi.org/10.4028/www.scientific.net/amr.844.217.

Full text
Abstract:
Sodium-montmorillonite (Na-MMT) nanoclay was modified with different types of alkylamine organic modifier including primary and quaternary alkylamines. Influence types of alkylamine on properties of natural rubber/clay nanocomposites was investigated. It was found that organoclays caused improvement of mechanical properties of natural rubber, and accelerated vulcanization reaction with higher degree of crosslinking. In addition, organoclay modified with quaternary alkylamine showed significance cure reversion phenomenon which caused reduction of thermal stability. On the other hand, primary alkylamine modified nanoclay caused improvement of thermal stability of natural rubber. Moreover, stress relaxation was observed at the melting temperature of the modifying agent.
APA, Harvard, Vancouver, ISO, and other styles
10

Kosukhin, Mikhail M., and Andrei M. Kosukhin. "The Role of Surface Phenomena in Modified Cement Dispersions at Studying Poly-Functional Modifiers' Mechanism of Action." Solid State Phenomena 299 (January 2020): 1038–43. http://dx.doi.org/10.4028/www.scientific.net/ssp.299.1038.

Full text
Abstract:
The research findings of colloid and chemical properties of poly-functional modifiers (PFM) with various chemical compositions and qualitative and quantitative proportions of polar organic substances with various molecular weights have been presented. The possibility of regulating the properties of PFM and concrete mixes, modified by them by means of not only changing the chemical composition of modifiers, but combining the types and quantity of active admixtures of polar organic substances with various molecular weights has been shown. It has been demonstrated that the modifiers under study possess the surface activity at solid-solution phase boundary, reducing the surface tension σsolid-liquid (σs-l) At the same time the surface tension at the solution-air phase boundary can remain the same or reduce to a certain extent depending on the modifier’s chemical composition. PFM and superplasticizer (SP) SB-3, which have, unlike SP S-3, the certain surface activity at solid-solution boundary, increase the air entrainment into concrete mix by 0.5÷1.5%, additionally increasing the freeze-thaw resistance of concretes of both fluid and equal-workable compositions without affecting their strength. The adsorption of modifiers on the disperse phase of suspension is conditioned by dispersion forces and, independently of its kind, is of monomolecular nature. For the localization of PFM molecules on the surface of a particle, its molecule should have a system of bonded aromatic rings or conjugated double bonds. The adsorbed modifier’s molecules should make the disperse phase surface hydrophilic and for this purpose they should contain hydrophilic groups along the full length. All this predetermines the role of adsorption-solvation factor in modifiers’ mechanism of action.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Phenomenal Modifier"

1

CASSAGHI, DANIELE MARIO. "RETAINING RETENTIONALISM. A DEFENCE OF A TENSELESS ACCOUNT OF PERCEPTUAL EXPERIENCE." Doctoral thesis, Università degli Studi di Milano, 2020. http://hdl.handle.net/2434/708263.

Full text
Abstract:
We are able to perceive temporally structured events, like change, motion and persistence. These events do have temporal properties like duration, temporal order and simultaneity. In addition, many philosophers hold that, contrary to space, these temporal properties do not exhaust our temporal experience. Time itself, they hold, is felt as enjoying a transient character over and above these relations. Our awareness of temporal properties and the alleged flowing character of time are the object of analysis of this dissertation. Many philosophical problems and issues arise in this respect, among which the Paradox of Temporal Experience, the requirement of accommodating temporal transparency and the troubles for the B-Theory because of the so-called "Argument from Phenomenology". In addressing all of them, I will propose a full-blown tenseless account of temporal perception, implemented via retentionalism. It is a completely new proposal, since the received view runs against this very hypothesis, especially if the latter is accompanied by a naive realist conception of experience. In other words, I will show that no reference to any temporal location is within our perceptual contents. Moreover, In respect of the idea of a perceived flow, I will propose that this relies on a mistake. There is nothing like the perception of time passage. Finally, It is worth to point out that, within the overall field of philosophy of perception, our ability to perceive time is an unicum. While it is often said that our acts of perception do not share the properties of the perceived objects, it is still the case that temporal perception occurs in time. This is very interesting because temporal properties of perception come to have a role at explaining our ability to be acquainted with temporal properties in the environment. Finally, temporal perception has a lot of connections with other inquiries such metaphysics and cognitive science which will be explored in various extent.
APA, Harvard, Vancouver, ISO, and other styles
2

Lubarsky, Gennady V. "Colloid phenomena in surface-modified polymer systems." Thesis, Robert Gordon University, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.425376.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

LIU, WEN. "TRANSPORT PHENOMENA ASSOCIATED WITH LIQUID METAL FLOW OVER TOPOGRAPHICALLY MODIFIED SURFACES." UKnowledge, 2012. http://uknowledge.uky.edu/me_etds/16.

Full text
Abstract:
Brazing and soldering, as advanced manufacturing processes, are of significant importance to industrial applications. It is widely accepted that joining by brazing or soldering is possible if a liquid metal wets the solids to be joined. Wetting, hence spreading and capillary action of liquid metal (often called filler) is of significant importance. Good wetting is required to distribute liquid metal over/between the substrate materials for a successful bonding. Topographically altered surfaces have been used to exploit novel wetting phenomena and associated capillary actions, such as imbibitions (a penetration of a liquid front over/through a rough, patterned surface). Modification of surface roughness may be considered as a venue to tune and control the spreading behavior of the liquids. Modeling of spreading of liquids on rough surface, in particular liquid metals is to a large extent unexplored and constitutes a cutting edge research topic. In this dissertation the imbibitions of liquid metal has been considered as pertained to the metal bonding processes involving brazing and soldering fillers. First, a detailed review of fundamentals and the recent progress in studies of non-reactive and reactive wetting/capillary phenomena has been provided. An imbibition phenomenon has been experimentally achieved for organic liquids and molten metals during spreading over topographically modified intermetallic surfaces. It is demonstrated that the kinetics of such an imbibition over rough surfaces follows the Washburn-type law during the main spreading stage. The Washburn-type theoretical modeling framework has been established for both isotropic and anisotropic non-reactive imbibition of liquid systems over rough surfaces. The rough surface domain is considered as a porous-like medium and the associated surface topographical features have been characterized either theoretically or experimentally through corresponding permeability, porosity and tortuosity. Phenomenological records and empirical data have been utilized to verify the constructed model. The agreement between predictions and empirical evidence appears to be good. Moreover, a reactive wetting in a high temperature brazing process has been studied for both polished and rough surfaces. A linear relation between the propagating triple line and the time has been established, with spreading dominated by a strong chemical reaction.
APA, Harvard, Vancouver, ISO, and other styles
4

H, Klym, Shpotyuk O, Balitska V, and Hadzaman I. "Kinetics of Degradation Phenomena in Modified Cu0.1Ni0.8Co 0.2 Mn1.9O 4 Ceramics." Thesis, Materials of XVI International Conference dedicated of memory Professor Dmytro Freik “Physics and technology of thin films and nanosystems”, 2017. http://hdl.handle.net/123456789/4219.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Dolog, Ivan. "A Study of Charge Transport Phenomena and Nanoscale Investigation of the Modified CdS Surface." University of Akron / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=akron1229025777.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Isaiev, M. V., A. G. Kuzmich, and R. M. Burbelo. "Laser Ultrasound Methods for Investigation of Thermal Properties of Semiconductors Plate with Modified Surface Layer." Thesis, Sumy State University, 2012. http://essuir.sumdu.edu.ua/handle/123456789/35156.

Full text
Abstract:
In the article the results of analyze of laser ultrasound generation in inhomogeneous semiconductors plate is presented. The case of strong absorption of electromagnetic fields is considered. It is shown that in this case submicron surface layer thermal properties influence on thermal distribution evolution. The case of thin infinite plate considered. Peculiarities of excitation and propagation of elastic waves in such media regarding gives the possibility to obtain dispersive equation for laser ultrasound wave-vectors. It is shown that such processes in 1D case can be described. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/35156
APA, Harvard, Vancouver, ISO, and other styles
7

Genoyer, Julie. "Compatibilization of PMMA/PS blends by nanoparticles and block copolymers : effect on morphology and interfacial relaxation phenomena." Thesis, Lille 1, 2017. http://www.theses.fr/2017LIL10198/document.

Full text
Abstract:
Ces travaux de thèse présentent une étude du mécanisme de compatibilisation induit par des nanoparticules d’argile dans les mélanges de polymères en utilisant la rhéologie. Pour cela, de la montmorillonite, la laponite et l’halloysite, modifiées ou non, ont été ajoutées à des mélanges PMMA/PS. Les résultats de rhéologie linéaire en cisaillement ont montré que le mécanisme de compatibilisation, particulièrement le phénomène de coalescence, dépendait beaucoup de la localisation des nanoparticules. La montmorillonite modifiée, présente à l’interface entre les polymères, est la plus efficace à inhiber la coalescence et est aussi efficace qu’un copolymère à bloc de haute masse molaire. Ceci est particulièrement intéressant car les nanoparticules d’argile représentent un coût moindre comparé aux copolymères à bloc. Dans ces travaux, une attention spéciale a été portée aux relaxations présentes dans les mélanges. En utilisant la rhéologie linéaire en cisaillement, un effet Marangoni a été mis en évidence pour la première fois dans le cas de nanoparticules d’argile modifiées présentes à l’interface. Enfin, les mélanges soumis à un flux élongationnel puis relaxation ont montré que la relaxation des gouttes de phase dispersée après une importante déformation était plus rapide par ajout d’argiles dispersées dans la matrice et ralentie par des argiles mieux dispersées soit à l’interface, soit dans l’ensemble du mélange
In this thesis, the compatibilization mechanism induced by clay nanoparticles in polymer blends was investigated using rheology. To do so, montmorillonite, laponite and halloysite, modified or not, were added to PMMA/PS blends. Linear shear rheology showed that the compatibilization mechanism, especially the coalescence phenomenon, was greatly influenced by the localization of clay nanoparticles. Modified montmorillonite, which was located at the interface, was shown to be the most efficient at inhibiting coalescence among clays and as efficient as a block copolymer with a high molecular mass. The latter is particularly interesting as nanoparticles are cheaper than block copolymers. In this work, special attention was given to relaxations happening in blends. Using linear shear rheology, Marangoni stresses due to a gradient in compatibilizer concentration at the interface was evidenced for the first time in the case of organically modified clay nanoparticles when located at the interface. Finally, submitting blends to elongational flow and subsequent relaxation showed that the relaxation of the droplets after high deformations was faster in the case of clays dispersed in the matrix and slowed down by the interfacial tension in the case of a better dispersion of clays at the interface or in the whole blend
APA, Harvard, Vancouver, ISO, and other styles
8

Nigam, Poonam. "Interaction of water-soluble surfactants with self-assembled lipid monolayers at the vapor-liquid interface equilibrium and dynamic phenomena /." Columbus, Ohio : Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1157987838.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Garpenquist, Simon, and Carl Erik Sebastian Lindfors. "Practical investigation of mixing phenomena by physical modelling : Scaling criteria applied for bottom gas-stirred water modelling of metallurgical vessels." Thesis, KTH, Materialvetenskap, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-298410.

Full text
Abstract:
Gas stirring is currently the most commonly used method of homogenizing liquid steel in commercial processes. However, due to the harsh environment during the process, physical models built out of e.g. plexiglass have been used to easier understand the complex phenomenon occurring in the process. The models are also used to optimize stirring conditions and estimate mixing times. Instead of liquid steel, water has been used for modelling, to increase safety and reduce costs. The water models are usually scaled down to sizes that are easier to handle. Scaling correctly requires fulfilling commonly used criteria and dimensionless numbers. This report investigated the accuracy of these dimensionless numbers and the relations commonly used for scaling. Existing studies and relations were evaluated, and the theoretically best suitable scaling equations were tested. Three bottom blown vessels were built, in order to test the existing relations. By applying scaling criteria and calculating gas flow rates accordingly, the correlation between theoretical mixing time and measured mixing time could be investigated. This thesis concluded that the correlation between the measured mixing times was not significant, however, by implementing the scale factor λ1/2 a better approximation seems to be given.
Gasomrörning är för tillfället den vanligaste metoden som används för att homogenisera flytande stål i kommersiella processer. På grund av de svåra förhållandena under processen har fysiska modeller, byggda av exempelvis plexiglas, använts. Detta för att enklare förstå de komplexa fenomen som uppstår under processen. Modellerna används också för att optimera omrörningsförhållandena och för att uppskatta blandningstider. Istället för flytande stål har vatten använts vid modellering för att öka säkerheten och minska kostnaderna. Vattenmodellerna är vanligtvis nedskalade till storlekar som är lättare att hantera. En korrekt skalning kräver att vanliga kriterier och dimensionslösa tal uppfylls. Denna rapport undersökte noggrannheten för dessa dimensionslösa tal samt relationer som vanligtvis används vid skalning. Befintliga studier och relationer utvärderades och de teoretiskt mest lämpliga skalningsekvationerna testades. Tre stycken kärl med bottenblåsning byggdes för att testa dessa relationer. Genom att tillämpa skalningskriterier och beräkna gasflödeshastigheterna, kunde korrelationen mellan de teoretiska och uppmätta blandningstiderna undersökas. Denna avhandling drog slutsatsen att korrelationen mellan de uppmätta blandningstiderna inte var signifikant. Dock verkade en bättre approximation fås när skalfaktorn λ1/2 implementerades.
APA, Harvard, Vancouver, ISO, and other styles
10

Nickelson, Joyce E. "A modified obesity proneness model in the prediction of weight status among high school students." [Tampa, Fla] : University of South Florida, 2008. http://purl.fcla.edu/usf/dc/et/SFE0002410.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Phenomenal Modifier"

1

1966-, Fallon Padraic G., ed. Pathogen derived immunomodulatory molecules. Austin, Tex: Landes Bioscience, 2009.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

1966-, Fallon Padraic G., ed. Pathogen derived immunomodulatory molecules. Austin, Tex: Landes Bioscience, 2009.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

1966-, Fallon Padraic G., ed. Pathogen derived immunomodulatory molecules. Austin, Tex: Landes Bioscience, 2009.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Pathogen-derived immunomodulatory molecules. New York: Springer Science+Business Media, 2009.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

P, Townsend Dennis, and United States. National Aeronautics and Space Administration., eds. Lubricant jet flow phenomena in spur and helical gears with modified addendums-- for radially directed individual jets. [Washington, DC]: National Aeronautics and Space Administration, 1989.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

National Research Council (U.S.). Subcommittee on Effects of Metabolic Modifiers on the Nutrient Requirements ofFood-Producing Animals., ed. Metabolic modifiers: Effects on the nutrient requirements offood-producing animals. Washington, D.C: NationalAcademy Press, 1994.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

National Research Council (U.S.). Subcommittee on Effects of Metabolic Modifiers on the Nutrient Requirements of Food-Producing Animals., ed. Metabolic modifiers: Effects on the nutrient requirements of food-producing animals. Washington, D.C: National Academy Press, 1994.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

Kudinov, Igor', Anton Eremin, Konstantin Trubicyn, Vitaliy Zhukov, and Vasiliy Tkachev. Vibrations of solids, liquids and gases taking into account local disequilibrium. ru: INFRA-M Academic Publishing LLC., 2022. http://dx.doi.org/10.12737/1859642.

Full text
Abstract:
The monograph presents the results of the development and research of new mathematical models of the processes of vibrations of solids, liquids and gases, taking into account local disequilibrium. To derive differential equations, the Navier—Stokes equations, Newton's second law and modified formulas of the classical empirical laws of Fourier, Hooke, Newton are used, which take into account the velocities and accelerations of the driving forces (gradients of the corresponding quantities) and their consequences (heat flow, normal and tangential stresses). The conditions for the occurrence of shock waves of stresses and displacements in dynamic thermoelasticity problems formulated taking into account relaxation phenomena in thermal and thermoelastic problems are investigated, new results are obtained in the study of longitudinal and transverse vibrations of rods, strings, liquids and gases, and the conditions for the excitation of gas self-oscillations arising from a time-constant heat source are determined. It is intended for scientific and technical workers specializing in mathematics, thermophysics, thermoelasticity, as well as teachers and students of technical universities.
APA, Harvard, Vancouver, ISO, and other styles
9

Dubanov, Aleksandr. Computer simulation in pursuit problems. ru: Publishing Center RIOR, 2022. http://dx.doi.org/10.29039/02102-6.

Full text
Abstract:
Currently, computer simulation in virtual reality systems has a special status. In order for a computer model to meet the requirements of the tasks it models, it is necessary that the mathematical apparatus correctly describe the simulated phenomena. In this monograph, the simulation of pursuit problems is carried out. An adaptive modeling of the behavior of both pursuers and targets is carried out. An iterative calculation of the trajectories of the participants in the pursuit problem is carried out. The main attention is paid to the methods of pursuit and parallel rendezvous. These methods are taken as the basis of the study and are modified in the future. The scientific novelty of the study is the iterative calculation of the trajectories of the participants in the pursuit task when moving at a constant speed, while following the predicted trajectories. The predicted trajectories form a one-parameter network of continuous lines of the first order of smoothness. The predicted trajectories are calculated taking into account the restrictions on the curvature of the participant in the pursuit problem. The fact of restrictions on curvature can be interpreted as restrictions on the angular frequency of rotation of the object of the pursuit problem. Also, the novelty is the calculation of the iterative process of group pursuit of multiple targets, when targets are hit simultaneously or at specified intervals. The calculation of the parameters of the network of predicted trajectories is carried out with a curvature variation in order to achieve the desired temporal effect. The work also simulates the adaptive behavior of the pursuer and the target. The principle of behavior can be expressed on the example of a pursuer with a simple phrase: "You go to the left - I go to the left." This happens at each iteration step in terms of choosing the direction of rotation. For the purpose, the principle of adaptive behavior is expressed by the phrase: "You go to the left - I go to the right." The studies, algorithms and models presented in the monograph can be in demand in the design of autonomously controlled unmanned aerial vehicles with elements of artificial intelligence. The task models in the monograph are supplemented with many animated images, where you can see the research process. Also, the tasks have an implementation in a computer mathematics system and can be transferred to virtual reality systems if necessary.
APA, Harvard, Vancouver, ISO, and other styles
10

Sawada, Osamu. Landscape of scalar meanings. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198714224.003.0002.

Full text
Abstract:
Chapter 2 provides the landscape of scalar meanings and highlights the target phenomenon of this book—the phenomenon of the dual use of scalar modifiers. More specifically, four kinds of scalar meanings are introduced: at-issue scalar meaning, conversational scalar meaning, presuppositional scalar meaning, and conventional implicature (CI) scalar meaning. There follows an informal examination of the dual-use phenomenon of scalar modifiers where a scalar modifier can express an at-issue scalar meaning and a CI scalar meaning. The similarities and differences between a CI and a presupposition are also considered. It is claimed that a CI and a presupposition belong to a different class of meaning and should theoretically be treated differently.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Phenomenal Modifier"

1

Yun, Seok Min, Ju Wan Kim, Hang Kyo Jin, Young Ho Kim, and Young Seak Lee. "Methane Storage on Surface Modified Activated Carbons." In Solid State Phenomena, 73–76. Stafa: Trans Tech Publications Ltd., 2008. http://dx.doi.org/10.4028/3-908451-48-5.73.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Tanaka, Takashi, Takeshi Fujimatsu, Kazuya Hashimoto, and Kazuhiko Hiraoka. "Austenite Grain Stability of Titanium-Modified Carburizing Steel." In Solid State Phenomena, 3–8. Stafa: Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/3-908451-25-6.3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Chen, B. K., S. Y. Tsay, and C. P. Chen. "Naphthalene Containing Polyimide Nanocomposites Hybrid with Organo-Modified Montmorillonite." In Solid State Phenomena, 43–46. Stafa: Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/3-908451-18-3.43.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Lv, Yu Zhen, Yun Liang Li, Chun Ping Li, Lin Guo, Hui Bin Xu, and Paul Simon. "Shape Evolution of ZnO Nanostructures Modified by Trioctylphosphine Oxide." In Solid State Phenomena, 25–28. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/3-908451-30-2.25.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Manoj, P., Chang-Ki Min, C. T. Aravindakumar, and Taiha Joo. "Ultrafast Charge Transfer Dynamics of a Modified Double Helical DNA." In Ultrafast Phenomena XV, 540–42. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-68781-8_175.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Deng, Shi Qiang, P. Rosso, Lin Ye, and Klaus Friedrich. "Interlaminar Fracture of CF/EP Composites Modified with Nano-Silica." In Solid State Phenomena, 1403–6. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/3-908451-30-2.1403.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

May, B., M. R. Hartwich, R. Stengler, W. P. Weinhold, and Xian Guo Hu. "Determination of Surface Functionalities of Micro- and Nanoparticle Modified Polymers." In Solid State Phenomena, 1429–32. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/3-908451-30-2.1429.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Li, T., X. B. Zhang, Y. Li, W. Z. Huang, X. Y. Tao, H. Zhang, X. F. Ma, Y. W. Shi, and H. Z. Chen. "Photoconductivity Study of Modified Single-Wall Carbon Nanotube/ Oxotitanium Phthalocyanine." In Solid State Phenomena, 631–36. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/3-908451-30-2.631.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Park, Soo Jin, K. Li, and S. K. Hong. "Thermal Stabilities and Mechanical Interfacial Properties of Polyethresulfone-Modified Epoxy Resin." In Solid State Phenomena, 159–62. Stafa: Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/3-908451-18-3.159.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Kotnarowski, Andrzej. "Tribological Properties of Oils Modified with the Addition of Metal Nanoparticles." In Solid State Phenomena, 393–98. Stafa: Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/3-908451-21-3.393.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Phenomenal Modifier"

1

Han, Bumsoo. "Modified Challenge-Based Teaching of Biotransport Phenomena." In ASME 2011 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2011. http://dx.doi.org/10.1115/sbc2011-53300.

Full text
Abstract:
Major challenges of teaching biotransport phenomena are the interdisciplinary nature of biotransport principles, and diverse backgrounds of students from biology, biomedical engineering, mechanical engineering and chemical engineering majors. These challenges make traditional lecture-based instruction less effective, and difficult to implement new discovery and knowledge into the lecture material. In order to overcome these challenges, it has been proposed to teach biotransport phenomena based on the “How People Learn” (HPL) methodology [1–3]. The HPL methodology is a challenge-based pedagogic method in which students learn the principles through solving the assigned challenges. Adaptation of this pedagogic method to bioengineering courses is actively being developed and supported by NSF (VaNTH-ERC). This method has been shown to be very effective in teaching interdisciplinary science and engineering principles if the challenge modules are carefully designed.
APA, Harvard, Vancouver, ISO, and other styles
2

Liu, Haisheng. "On New Phenomena of Photon from Modified Double Slit Experiment." In ADVANCES IN QUANTUM THEORY: Proceedings of the International Conference on Advances in Quantum Theory. AIP, 2011. http://dx.doi.org/10.1063/1.3567467.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Gol-Mohamad, Mohammad P., Mohammad Modarres, and Ali Mosleh. "Modified Phenomena Identification and Ranking Table (PIRT) for Uncertainty Analysis." In 14th International Conference on Nuclear Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/icone14-89642.

Full text
Abstract:
This paper describes a methodology of characterizing important phenomena, which is also part of a broader research by the authors called “Modified PIRT”. The methodology provides robust process of phenomena identification and ranking process for more precise quantification of uncertainty. It is a two-step process of identifying and ranking methodology based on thermal-hydraulics (TH) importance as well as uncertainty importance. Analytical Hierarchical Process (AHP) has been used for as a formal approach for TH identification and ranking. Formal uncertainty importance technique is used to estimate the degree of credibility of the TH model(s) used to represent the important phenomena. This part uses subjective justification by evaluating available information and data from experiments, and code predictions. The proposed methodology was demonstrated by developing a PIRT for large break loss of coolant accident LBLOCA for the LOFT integral facility with highest core power (test LB-1).
APA, Harvard, Vancouver, ISO, and other styles
4

Manoj, P., Chang-Ki Min, Taiha Joo, and C. T. Aravindakumar. "Ultrafast Charge Transfer Dynamics of a Modified Double Helical DNA." In International Conference on Ultrafast Phenomena. Washington, D.C.: OSA, 2006. http://dx.doi.org/10.1364/up.2006.thd6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Zhu, J., S. Fang, K. Yamane, T. Chen, and M. Yamashita. "Completely Characterizing Single Attosecond Pulses by the Modified Spectral Phase Interferometry." In International Conference on Ultrafast Phenomena. Washington, D.C.: OSA, 2010. http://dx.doi.org/10.1364/up.2010.the25.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Bruzzone, Luca, and Giorgio Bozzini. "Modified LuGre Friction Model for the Simulation of Stick-Slip Phenomena." In Artificial Intelligence and Applications / Modelling, Identification, and Control. Calgary,AB,Canada: ACTAPRESS, 2011. http://dx.doi.org/10.2316/p.2011.718-057.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Dyadyusha, Andrey, Tatyana Marusii, Yuri A. Reznikov, and Oleg V. Yaroshchuk. "Oblique photoalignment of a nematic liquid crystal by modified polyvinylcinnamates." In International Liquid Crystal Workshop: Surface Phenomena, edited by Evgenij Rumtsev and Maxim G. Tomilin. SPIE, 1996. http://dx.doi.org/10.1117/12.230653.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Chen, Qian, Zhijun Xu, Ruiqing Chu, Yong Liu, Mingli Chen, Lin Shao, and Guorong Li. "Structure and electrical properties of Ho-modified Sr2Bi4Ti5O18 Lead-free piezoelectric ceramics." In Nanoscale Phenomena in Polar Materials. IEEE, 2011. http://dx.doi.org/10.1109/isaf.2011.6014004.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Kobayashi, Tetsuro, Akihiro Morimoto, Bong Young Lee, and Tadasi Sueta. "A New Method of Ultrashort Pulse Generation – Modified Fabry-Perot Electrooptic Modulator –." In International Conference on Ultrafast Phenomena. Washington, D.C.: Optica Publishing Group, 1990. http://dx.doi.org/10.1364/up.1990.wc16.

Full text
Abstract:
To generate ultrashort optical pulses, modelocking of lasers has ordinarily been used. Even using this excellent method, however, we can not generate subpicosecond pulse from narrow-linewidth lasers because the pulse width is limited by gain-linewidth of the laser. On the other hand, a Fabry-Perot electrooptic modulator (FP modulator) [1] is applicable to almost all kinds of lasers and can produce subpicosecond pulses without any linewidth limitation. Actually 0.8ps pulses were obtained from an Ar laser (linewidth: 4GHz)[2]. Unfortunately, the FP modulator has a disadvantage of low power efficiency. Since the peak value of the power transmittance of it is at most unity, the energy efficiency (average output power/average input power) becomes smaller as the pulsewidth becomes shorter as shown in Fig. 1(a).
APA, Harvard, Vancouver, ISO, and other styles
10

Borkar, Hitesh, and Ashok Kumar. "Conduction phenomenon of Al3+ modified lead free (Na0.5Bi0.5)0.92Ba0.08TiO3 electroceramics." In DAE SOLID STATE PHYSICS SYMPOSIUM 2015. Author(s), 2016. http://dx.doi.org/10.1063/1.4948050.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Phenomenal Modifier"

1

Zimmerman, Benjamin Joseph. Rumpling phenomenon in platinum modified Ni-Al alloys. Office of Scientific and Technical Information (OSTI), May 2005. http://dx.doi.org/10.2172/850069.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Wilson, D., Matthew Kamrath, Caitlin Haedrich, Daniel Breton, and Carl Hart. Urban noise distributions and the influence of geometric spreading on skewness. Engineer Research and Development Center (U.S.), November 2021. http://dx.doi.org/10.21079/11681/42483.

Full text
Abstract:
Statistical distributions of urban noise levels are influenced by many complex phenomena, including spatial and temporal variations in the source level, multisource mixtures, propagation losses, and random fading from multipath reflections. This article provides a broad perspective on the varying impacts of these phenomena. Distributions incorporating random fading and averaging (e.g., gamma and noncentral Erlang) tend to be negatively skewed on logarithmic (decibel) axes but can be positively skewed if the fading process is strongly modulated by source power variations (e.g., compound gamma). In contrast, distributions incorporating randomly positioned sources and explicit geometric spreading [e.g., exponentially modified Gaussian (EMG)] tend to be positively skewed with exponential tails on logarithmic axes. To evaluate the suitability of the various distributions, one-third octave band sound-level data were measured at 37 locations in the North End of Boston, MA. Based on the Kullback-Leibler divergence as calculated across all of the locations and frequencies, the EMG provides the most consistently good agreement with the data, which were generally positively skewed. The compound gamma also fits the data well and even outperforms the EMG for the small minority of cases exhibiting negative skew. The lognormal provides a suitable fit in cases in which particular non-traffic noise sources dominate.
APA, Harvard, Vancouver, ISO, and other styles
3

Panchenko, Liubov, and Andrii Khomiak. Education Statistics: Looking for Case-Study for Modeling. [б. в.], November 2020. http://dx.doi.org/10.31812/123456789/4461.

Full text
Abstract:
The article deals with the problem of using modeling in social statistics courses. It allows the student-researcher to build one-dimensional and multidimensional models of the phenomena and processes that are being studied. Social Statistics course programs from foreign universities (University of Arkansas; Athabasca University; HSE University, Russia; McMaster University, Canada) are analyzed. The article provides an example using the education data set – Guardian UK universities ranking in Social Statistics course. Examples of research questions are given, data analysis for these questions is performed (correlation, hypothesis testing, discriminant analysis). During the research the discriminant model with group variable – modified Guardian score – and 9 predictors: course satisfaction, teaching quality, feedback, staff-student ratio, money spent on each student and other) was built. Lower student’s satisfaction with feedback was found to be significantly different from the satisfaction with teaching. The article notes the modeling and statistical analysis should be accompanied by a meaningful interpretation of the results. In this example, we discussed the essence of university ratings, the purpose of Guardian rating, the operationalization and measurement of such concepts as satisfaction with teaching, feedback; ways to use statistics in education, data sources etc. with students. Ways of using this education data in group and individual work of students are suggested.
APA, Harvard, Vancouver, ISO, and other styles
4

Shmulevich, Itzhak, Shrini Upadhyaya, Dror Rubinstein, Zvika Asaf, and Jeffrey P. Mitchell. Developing Simulation Tool for the Prediction of Cohesive Behavior Agricultural Materials Using Discrete Element Modeling. United States Department of Agriculture, October 2011. http://dx.doi.org/10.32747/2011.7697108.bard.

Full text
Abstract:
The underlying similarity between soils, grains, fertilizers, concentrated animal feed, pellets, and mixtures is that they are all granular materials used in agriculture. Modeling such materials is a complex process due to the spatial variability of such media, the origin of the material (natural or biological), the nonlinearity of these materials, the contact phenomenon and flow that occur at the interface zone and between these granular materials, as well as the dynamic effect of the interaction process. The lack of a tool for studying such materials has limited the understanding of the phenomena relevant to them, which in turn has led to energy loss and poor quality products. The objective of this study was to develop a reliable prediction simulation tool for cohesive agricultural particle materials using Discrete Element Modeling (DEM). The specific objectives of this study were (1) to develop and verify a 3D cohesionless agricultural soil-tillage tool interaction model that enables the prediction of displacement and flow in the soil media, as well as forces acting on various tillage tools, using the discrete element method; (2) to develop a micro model for the DEM formulation by creating a cohesive contact model based on liquid bridge forces for various agriculture materials; (3) to extend the model to include both plastic and cohesive behavior of various materials, such as grain and soil structures (e.g., compaction level), textures (e.g., clay, loam, several grains), and moisture contents; (4) to develop a method to obtain the parameters for the cohesion contact model to represent specific materials. A DEM model was developed that can represent both plastic and cohesive behavior of soil. Soil cohesive behavior was achieved by considering tensile force between elements. The developed DEM model well represented the effect of wedge shape on soil behavior and reaction force. Laboratory test results showed that wedge penetration resistance in highly compacted soil was two times greater than that in low compacted soil, whereas DEM simulation with parameters obtained from the test of low compacted soil could not simply be extended to that of high compacted soil. The modified model took into account soil failure strength that could be changed with soil compaction. A three dimensional representation composed of normal displacement, shear failure strength and tensile failure strength was proposed to design mechanical properties between elements. The model based on the liquid bridge theory. An inter particle tension force measurement tool was developed and calibrated A comprehensive study of the parameters of the contact model for the DEM taking into account the cohesive/water-bridge was performed on various agricultural grains using this measurement tool. The modified DEM model was compared and validated against the test results. With the newly developed model and procedure for determination of DEM parameters, we could reproduce the high compacted soil behavior and reaction forces both qualitatively and quantitatively for the soil conditions and wedge shapes used in this study. Moreover, the effect of wedge shape on soil behavior and reaction force was well represented with the same parameters. During the research we made use of the commercial PFC3D to analyze soil tillage implements. An investigation was made of three different head drillers. A comparison of three commonly used soil tillage systems was completed, such as moldboard plow, disc plow and chisel plow. It can be concluded that the soil condition after plowing by the specific implement can be predicted by the DEM model. The chisel plow is the most economic tool for increasing soil porosity. The moldboard is the best tool for soil manipulation. It can be concluded that the discrete element simulation can be used as a reliable engineering tool for soil-implement interaction quantitatively and qualitatively.
APA, Harvard, Vancouver, ISO, and other styles
5

Schuster, Gadi, and David Stern. Integrated Studies of Chloroplast Ribonucleases. United States Department of Agriculture, September 2011. http://dx.doi.org/10.32747/2011.7697125.bard.

Full text
Abstract:
Gene regulation at the RNA level encompasses multiple mechanisms in prokaryotes and eukaryotes, including splicing, editing, endo- and exonucleolytic cleavage, and various phenomena related to small or interfering RNAs. Ribonucleases are key players in nearly all of these post-transcriptional mechanisms, as the catalytic agents. This proposal continued BARD-funded research into ribonuclease activities in the chloroplast, where RNase mutation or deficiency can cause metabolic defects and is often associated with plant chlorosis, embryo or seedling lethality, and/or failure to tolerate nutrient stress. The first objective of this proposal was to examined a series of point mutations in the PNPase enzyme of Arabidopsis both in vivo and in vitro. This goal is related to structure-function analysis of an enzyme whose importance in many cellular processes in prokaryotes and eukaryotes has only begun to be uncovered. PNPase substrates are mostly generated by endonucleolytic cleavages for which the catalytic enzymes remain poorly described. The second objective of the proposal was to examine two candidate enzymes, RNase E and RNase J. RNase E is well-described in bacteria but its function in plants was still unknown. We hypothesized it catalyzes endonucleolytic cleavages in both RNA maturation and decay. RNase J was recently discovered in bacteria but like RNase E, its function in plants had yet to be explored. The results of this work are described in the scientific manuscripts attached to this report. We have completed the first objective of characterizing in detail TILLING mutants of PNPase Arabidopsis plants and in parallel introducing the same amino acids changes in the protein and characterize the properties of the modified proteins in vitro. This study defined the roles for both RNase PH core domains in polyadenylation, RNA 3’-end maturation and intron degradation. The results are described in the collaborative scientific manuscript (Germain et al 2011). The second part of the project aimed at the characterization of the two endoribonucleases, RNase E and RNase J, also in this case, in vivo and in vitro. Our results described the limited role of RNase E as compared to the pronounced one of RNase J in the elimination of antisense transcripts in the chloroplast (Schein et al 2008; Sharwood et al 2011). In addition, we characterized polyadenylation in the chloroplast of the green alga Chlamydomonas reinhardtii, and in Arabidopsis (Zimmer et al 2009). Our long term collaboration enabling in vivo and in vitro analysis, capturing the expertise of the two collaborating laboratories, has resulted in a biologically significant correlation of biochemical and in planta results for conserved and indispensable ribonucleases. These new insights into chloroplast gene regulation will ultimately support plant improvement for agriculture.
APA, Harvard, Vancouver, ISO, and other styles
6

Shomer, Ilan, Louise Wicker, Uzi Merin, and William L. Kerr. Interactions of Cloud Proteins, Pectins and Pectinesterases in Flocculation of Citrus Cloud. United States Department of Agriculture, February 2002. http://dx.doi.org/10.32747/2002.7580669.bard.

Full text
Abstract:
The overall objective was to understand the cloud flocculation of citrus juice by characterization of the interactions between proteins and pectins, and to determine the role of PE isozymes in catalyzing this phenomenon. Specific objectives were to: 1. identify/characterize cloud-proteins in relation to their coagulable properties and affinity to pectins; 2. to determine structural changes of PME and other proteins induced by cation/pectin interactions; 3. localize cloud proteins, PME and bound protein/pectates in unheated and pasteurized juices; 4. to create "sensitized" pectins and determine their effect on clarification. The original objectives were not changed but the methods and approach were modified due to specific research requirements. Two i postulates were: 1. there is a specific interaction of cloud proteins with de-esterified regions of ! pectin and this contributes to cloud loss; 2. isozymes of pectin-methyl-esterase (PME) vary in efficiency to create sensitized pectins. The appearance of citrus fruit juice is an important quality factor and is determined by the color and turbidity that .are conferred by the suspended particles, i.e., by the cloud and its homogeneity. Under some circumstances the cloud tend to flocculate and the juice clarifies. The accepted approach to explain the clarification is based on pectin demethoxylation by PME that promotes formation of Ca-pectate. Therefore, the juice includes immediate heat-inactivation upon ~ squeezing. Protein coagulation also promotes cloud instability of citrus fruit extracts. However, the clarification mechanism is not fully understood. Information accumulated from several laboratories indicates that clarification is a more complex process than can be explained by a single mechanism. The increasing trend to consume natural-fresh juice emphasizing the importance of the knowledge to assure homogeneity of fresh juice. The research included complementary directions: Conditions that induce cloud-instability of natural- juice [IL]. Evaluate purification schemes of protein [USA]. Identifications of proteins, pectin and neutral sugars ([IL]; Structure of the cloud components using light and electron microscopy and immuno-labeling of PME, high-methoxyl-pectin (HMP) and low-methoxyl-pectin (LMP); Molecular weight of calcium sensitized pectins [US]; Evaluation of the products of PME activity [US]. Fractions and size distribution and cloud components [IL-US]. The optimal pH activity of PME is 7 and the flocculation pH of the cloud is 3-4. Thus, the c roles of PME, proteins and pectins in the cloud instability, were studied in pH ranges of 2- 7. The experiments led to establish firstly repeatable simulate conditions for cloud instability [IL]. Thermostable PME (TS-PE) known to induce cloud instability, but also thermolabile forms of PME (TL-PE) caused clarification, most likely due to the formation and dissolution of inactive :. PE-pectin complexes and displacement of a protective colloid from the cloud surface [US]. Furthermore, elimination of non-PME protein increases TS-PE activity, indicating that non-PME proteins moderate PME activity [US]. Other experiments Concomitantly with the study of the PME activity but promotes the association of cloud-proteins to pectin. Adjusting of the juice pH to f 7 retains the cloud stability and re-adjusting of the pH to 40% DE reacts to immuno-labeling in the cloud fragments, whereas
APA, Harvard, Vancouver, ISO, and other styles
7

Snyder, Victor A., Dani Or, Amos Hadas, and S. Assouline. Characterization of Post-Tillage Soil Fragmentation and Rejoining Affecting Soil Pore Space Evolution and Transport Properties. United States Department of Agriculture, April 2002. http://dx.doi.org/10.32747/2002.7580670.bard.

Full text
Abstract:
Tillage modifies soil structure, altering conditions for plant growth and transport processes through the soil. However, the resulting loose structure is unstable and susceptible to collapse due to aggregate fragmentation during wetting and drying cycles, and coalescense of moist aggregates by internal capillary forces and external compactive stresses. Presently, limited understanding of these complex processes often leads to consideration of the soil plow layer as a static porous medium. With the purpose of filling some of this knowledge gap, the objectives of this Project were to: 1) Identify and quantify the major factors causing breakdown of primary soil fragments produced by tillage into smaller secondary fragments; 2) Identify and quantify the. physical processes involved in the coalescence of primary and secondary fragments and surfaces of weakness; 3) Measure temporal changes in pore-size distributions and hydraulic properties of reconstructed aggregate beds as a function of specified initial conditions and wetting/drying events; and 4) Construct a process-based model of post-tillage changes in soil structural and hydraulic properties of the plow layer and validate it against field experiments. A dynamic theory of capillary-driven plastic deformation of adjoining aggregates was developed, where instantaneous rate of change in geometry of aggregates and inter-aggregate pores was related to current geometry of the solid-gas-liquid system and measured soil rheological functions. The theory and supporting data showed that consolidation of aggregate beds is largely an event-driven process, restricted to a fairly narrow range of soil water contents where capillary suction is great enough to generate coalescence but where soil mechanical strength is still low enough to allow plastic deforn1ation of aggregates. The theory was also used to explain effects of transient external loading on compaction of aggregate beds. A stochastic forInalism was developed for modeling soil pore space evolution, based on the Fokker Planck equation (FPE). Analytical solutions for the FPE were developed, with parameters which can be measured empirically or related to the mechanistic aggregate deformation model. Pre-existing results from field experiments were used to illustrate how the FPE formalism can be applied to field data. Fragmentation of soil clods after tillage was observed to be an event-driven (as opposed to continuous) process that occurred only during wetting, and only as clods approached the saturation point. The major mechanism of fragmentation of large aggregates seemed to be differential soil swelling behind the wetting front. Aggregate "explosion" due to air entrapment seemed limited to small aggregates wetted simultaneously over their entire surface. Breakdown of large aggregates from 11 clay soils during successive wetting and drying cycles produced fragment size distributions which differed primarily by a scale factor l (essentially equivalent to the Van Bavel mean weight diameter), so that evolution of fragment size distributions could be modeled in terms of changes in l. For a given number of wetting and drying cycles, l decreased systematically with increasing plasticity index. When air-dry soil clods were slightly weakened by a single wetting event, and then allowed to "age" for six weeks at constant high water content, drop-shatter resistance in aged relative to non-aged clods was found to increase in proportion to plasticity index. This seemed consistent with the rheological model, which predicts faster plastic coalescence around small voids and sharp cracks (with resulting soil strengthening) in soils with low resistance to plastic yield and flow. A new theory of crack growth in "idealized" elastoplastic materials was formulated, with potential application to soil fracture phenomena. The theory was preliminarily (and successfully) tested using carbon steel, a ductile material which closely approximates ideal elastoplastic behavior, and for which the necessary fracture data existed in the literature.
APA, Harvard, Vancouver, ISO, and other styles
8

Hudgens, Bian, Jene Michaud, Megan Ross, Pamela Scheffler, Anne Brasher, Megan Donahue, Alan Friedlander, et al. Natural resource condition assessment: Puʻuhonua o Hōnaunau National Historical Park. National Park Service, September 2022. http://dx.doi.org/10.36967/2293943.

Full text
Abstract:
Natural Resource Condition Assessments (NRCAs) evaluate current conditions of natural resources and resource indicators in national park units (parks). NRCAs are meant to complement—not replace—traditional issue- and threat-based resource assessments. NRCAs employ a multi-disciplinary, hierarchical framework within which reference conditions for natural resource indicators are developed for comparison against current conditions. NRCAs do not set management targets for study indicators, and reference conditions are not necessarily ideal or target conditions. The goal of a NRCA is to deliver science-based information that will assist park managers in their efforts to describe and quantify a park’s desired resource conditions and management targets, and inform management practices related to natural resource stewardship. The resources and indicators emphasized in a given NRCA depend on the park’s resource setting, status of resource stewardship planning and science in identifying high-priority indicators, and availability of data and expertise to assess current conditions for a variety of potential study resources and indicators. Puʻuhonua o Hōnaunau National Historical Park (hereafter Puʻuhonua o Hōnaunau NHP) encompasses 1.7 km2 (0.7 mi2) at the base of the Mauna Loa Volcano on the Kona coast of the island of Hawaiʻi. The Kona coast of Hawaiʻi Island is characterized by calm winds that increase in the late morning to evening hours, especially in the summer when there is also a high frequency of late afternoon or early evening showers. The climate is mild, with mean high temperature of 26.2° C (79.2° F) and a mean low temperature of 16.6° C (61.9° F) and receiving on average 66 cm (26 in) of rainfall per year. The Kona coast is the only region in Hawaiʻi where more precipitation falls in the summer than in the winter. There is limited surface water runoff or stream development at Puʻuhonua o Hōnaunau NHP due to the relatively recent lava flows (less than 1,500 years old) overlaying much of the park. Kiʻilae Stream is the only watercourse within the park. Kiʻilae Stream is ephemeral, with occasional flows and a poorly characterized channel within the park. A stream gauge was located uphill from the park, but no measurements have been taken since 1982. Floods in Kiʻilae Stream do occur, resulting in transport of fluvial sediment to the ocean, but there are no data documenting this phenomenon. There are a small number of naturally occurring anchialine pools occupying cracks and small depressions in the lava flows, including the Royal Fishponds; an anchialine pool modified for the purpose of holding fish. Although the park’s legal boundaries end at the high tide mark, the sense of place, story, and visitor experience would be completely different without the marine waters adjacent to the park. Six resource elements were chosen for evaluation: air and night sky, water-related processes, terrestrial vegetation, vertebrates, anchialine pools, and marine resources. Resource conditions were determined through reviewing existing literature, meta-analysis, and where appropriate, analysis of unpublished short- and long-term datasets. However, in a number of cases, data were unavailable or insufficient to either establish a quantitative reference condition or conduct a formal statistical comparison of the status of a resource within the park to a quantitative reference condition. In those cases, data gaps are noted, and comparisons were made based on qualitative descriptions. Overall, the condition of natural resources within Puʻuhonua o Hōnaunau NHP reflects the surrounding landscape. The coastal lands immediately surrounding Puʻuhonua o Hōnaunau NHP are zoned for conservation, while adjacent lands away from the coast are agricultural. The condition of most natural resources at Puʻuhonua o Hōnaunau NHP reflect the overall condition of ecological communities on the west Hawai‘i coast. Although little of the park’s vegetation...
APA, Harvard, Vancouver, ISO, and other styles
9

Yahav, Shlomo, John Brake, and Noam Meiri. Development of Strategic Pre-Natal Cycling Thermal Treatments to Improve Livability and Productivity of Heavy Broilers. United States Department of Agriculture, December 2013. http://dx.doi.org/10.32747/2013.7593395.bard.

Full text
Abstract:
The necessity to improve broiler thermotolerance and live performance led to the following hypothesis: Appropriate comprehensive incubation treatments that include significant temperature management changes will promote angiogenesis and will improve acquisition of thermotolerance and carcass quality of heavy broilers through epigenetic adaptation. It was based on the following questions: 1. Can TM during embryogenesis of broilers induce a longer-lasting thermoregulatory memory (up to marketing age of 10 wk) that will improve acquisition of thermotolerance as well as increased breast meat yield in heavy broilers? 2. The improved sensible heat loss (SHL) suggests an improved peripheral vasodilation process. Does elevated temperature during incubation affect vasculogenesis and angiogenesis processes in the chick embryo? Will such create subsequent advantages for heavy broilers coping with adverse hot conditions? 3. What are the changes that occur in the PO/AH that induce the changes in the threshold response for heat production/heat loss based on the concept of epigenetic temperature adaptation? The original objectives of this study were as follow: a. to assess the improvement of thermotolerance efficiency and carcass quality of heavy broilers (~4 kg); b. toimproveperipheral vascularization and angiogenesis that improve sensible heat loss (SHL); c. to study the changes in the PO/AH thermoregulatory response for heat production/losscaused by modulating incubation temperature. To reach the goals: a. the effect of TM on performance and thermotolerance of broilers reared to 10 wk of age was studied. b. the effect of preincubation heating with an elevated temperature during the 1ˢᵗ 3 to 5 d of incubation in the presence of modified fresh air flow coupled with changes in turning frequency was elucidated; c.the effect of elevated temperature on vasculogenesis and angiogenesis was determined using in ovo and whole embryo chick culture as well as HIF-1α VEGF-α2 VEGF-R, FGF-2, and Gelatinase A (MMP2) gene expression. The effects on peripheral blood system of post-hatch chicks was determined with an infrared thermal imaging technique; c. the expression of BDNF was determined during the development of the thermal control set-point in the preoptic anterior hypothalamus (PO/AH). Background to the topic: Rapid growth rate has presented broiler chickens with seriousdifficulties when called upon to efficiently thermoregulate in hot environmental conditions. Being homeotherms, birds are able to maintain their body temperature (Tb) within a narrow range. An increase in Tb above the regulated range, as a result of exposure to environmental conditions and/or excessive metabolic heat production that often characterize broiler chickens, may lead to a potentially lethal cascade of irreversible thermoregulatory events. Exposure to temperature fluctuations during the perinatal period has been shown to lead to epigenetic temperature adaptation. The mechanism for this adaptation was based on the assumption that environmental factors, especially ambient temperature, have a strong influence on the determination of the “set-point” for physiological control systems during “critical developmental phases.” Recently, Piestunet al. (2008) demonstrated for the first time that TM (an elevated incubation temperature of 39.5°C for 12 h/d from E7 to E16) during the development/maturation of the hypothalamic-hypophyseal-thyroid axis (thermoregulation) and the hypothalamic-hypophyseal-adrenal axis (stress) significantly improved the thermotolerance and performance of broilers at 35 d of age. These phenomena raised two questions that were addressed in this project: 1. was it possible to detect changes leading to the determination of the “set point”; 2. Did TM have a similar long lasting effect (up to 70 d of age)? 3. Did other TM combinations (pre-heating and heating during the 1ˢᵗ 3 to 5 d of incubation) coupled with changes in turning frequency have any performance effect? The improved thermotolerance resulted mainly from an efficient capacity to reduce heat production and the level of stress that coincided with an increase in SHL (Piestunet al., 2008; 2009). The increase in SHL (Piestunet al., 2009) suggested an additional positive effect of TM on vasculogenesis and angiogensis. 4. In order to sustain or even improve broiler performance, TM during the period of the chorioallantoic membrane development was thought to increase vasculogenesis and angiogenesis providing better vasodilatation and by that SHL post-hatch.
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Phenomenal Modifier' for particular source types:
Journal articles Dissertations / Theses Books
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography