Log in

Relevant bibliographies by topics / Bud morphology and development

Contents

Journal articles
Dissertations / Theses
Books
Book chapters
Conference papers
Reports

Academic literature on the topic 'Bud morphology and development'

Author: Grafiati

Published: 4 June 2021

Last updated: 16 February 2022

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

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Bud morphology and development.'

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 "Bud morphology and development"

1

Templeton, C. W. G., K. D. Odlum, and S. J. Colombo. "How to identify bud initiation and count needle primordia in first-year spruce seedlings." Forestry Chronicle 69, no. 4 (August 1, 1993): 431–37. http://dx.doi.org/10.5558/tfc69431-4.

Full text

Abstract:

Bud initiation and subsequent bud development are key steps in the nursery production of first-year temperate spruce seedlings for reforestation. An understanding of the bud initiation and development processes and monitoring methods are of vital importance to both tree seedling nursery workers and foresters. A review of bud morphology and the bud development process is given for spruce seedlings. The equipment required and techniques used in the determination of bud initiation, and estimation of the number of needle primordia are presented. When properly applied, the examination of spruce buds forms a cornerstone for successful nursery management using extended greenhouse culture. Key words: bud initiation, bud morphology, bud dissection, black spruce, Picea mariana, needle primordia, nursery management

APA, Harvard, Vancouver, ISO, and other styles

2

OHTANI, MIWAKA, AYAKA SAKA, FUMI SANO, YOSHIKAZU OHYA, and SHINICHI MORISHITA. "DEVELOPMENT OF IMAGE PROCESSING PROGRAM FOR YEAST CELL MORPHOLOGY." Journal of Bioinformatics and Computational Biology 01, no. 04 (January 2004): 695–709. http://dx.doi.org/10.1142/s0219720004000363.

Full text

Abstract:

Every living organism has its own species-specific morphology. Despite the relatively simple ellipsoidal shape of budding yeast cells, the global regulation of yeast morphology remains unclear. In the past, each mutated gene from many mutants with abnormal morphology had to be classified manually. To investigate the morphological characteristics of yeast in detail, we developed a novel image-processing program that extracts quantitative data from microscope images automatically. This program extracts data on cells that are often used by yeast morphology researchers, such as cell size, roundness, bud neck position angle, and bud growth direction, and fits an ellipse to the cell outline. We evaluated the ability of the program to extract quantitative parameters. The results suggest that our image-processing program can play a central objective role in yeast morphology studies.

APA, Harvard, Vancouver, ISO, and other styles

3

Erwin, John E., and Royal D. Heins. "Temperature Effects on Lily Development Rate and Morphology from the Visible Bud Stage until Anthesis." Journal of the American Society for Horticultural Science 115, no. 4 (July 1990): 644–46. http://dx.doi.org/10.21273/jashs.115.4.644.

Full text

Abstract:

Day (DT) and night temperatures (NT) influenced Lilium longiflorum Thunb. `Nellie White' stem elongation and development rate from the visible bud stage (VB) until anthesis. Plant height increase after VB was a function of the difference (DIF) between DT and NT (DT-NT). Plant height increased 90% as DIF increased from - 16 to 16C. A cubic model described bud development rate as a function of temperature from 14 to 30C. A linear model adequately described bud development rate as a function of average daily temperature from 14 to 21C. Based on the linear model, bud development rate increased 0.05 per day for each 1C increase in average daily temperature. The base temperature for bud development, i.e., the temperature at which bud development rate was 0, was calculated as 3.5C.

APA, Harvard, Vancouver, ISO, and other styles

4

Kukk, Maarja, and Anu Sõber. "Bud development and shoot morphology in relation to crown location." AoB Plants 7 (2015): plv082. http://dx.doi.org/10.1093/aobpla/plv082.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Merrill, E. K. "Structure and development of terminal bud scales in green ash." Canadian Journal of Botany 68, no. 1 (January 1, 1990): 12–20. http://dx.doi.org/10.1139/b90-002.

Full text

Abstract:

Structure and development of terminal bud scales of green ash (Fraxinus pennsylvanica var. subintegerrima) were studied to provide a basis for comparison with foliage leaves of the same species. To identify early developmental stages of bud scales, structure and phenology of terminal buds were investigated first. Overwintering terminal buds have typically three or four pairs of bud scales and three to six pairs of foliage leaf primordia. Bud scales have a flattened base topped by rudimentary leaflets. After bud break, the first leaf primordia that are initiated develop and mature into terminal bud scales by early summer. Although morphology and anatomy of mature foliage leaves and bud scales are very different, primordia of leaf forms are similar until they reach a length of 500 μm. At that length both leaf forms have a base and apical leaflets. Bud scale bases widen and elongate without much thickening, while growth in the apical region is restricted. Marginal growth of the bud scale base is different from that described for most leaf blades. Terminal bud scales could be interpreted as being ontogenetically derived from foliage leaf primordia.

APA, Harvard, Vancouver, ISO, and other styles

6

Chun, Kristin T., and Mark G. Goebl. "The Identification of Transposon-Tagged Mutations in Essential Genes That Affect Cell Morphology in Saccharomyces cerevisiae." Genetics 142, no. 1 (January 1, 1996): 39–50. http://dx.doi.org/10.1093/genetics/142.1.39.

Full text

Abstract:

The yeast Saccharomyces cerevisiae reproduces by budding, and many genes are required for proper bud development. Mutations in some of these genes cause cells to die with an unusual terminal morphology—elongated or otherwise aberrantly shaped buds. To gain insight into bud development, we set out to identify novel genes that encode proteins required for proper bud morphogenesis. Previous studies screened collections of conditional mutations to identify genes required for essential functions, including bud formation. However, genes that are not susceptible to the generation of mutations that cause a conditional phenotype will not be identified in such screens. To identify a more comprehensive collection of mutants, we used transposon mutagenesis to generate a large collection of lethal disruption mutations. This collection was used to identify 209 mutants with disruptions that cause an aberrant terminal bud morphology. The disruption mutations in 33 of these mutants identify three previously uncharacterized genes as essential, and the mutant phenotypes suggest roles for their products in bud morphogenesis.

APA, Harvard, Vancouver, ISO, and other styles

7

Deal, D. L., J. C. Raulston, and L. E. Hinesley. "High temperature effects on apical bud morphology, dark respiration, and fixed growth of blue spruce." Canadian Journal of Forest Research 20, no. 12 (December 1, 1990): 1871–77. http://dx.doi.org/10.1139/x90-251.

Full text

Abstract:

Night temperatures during bud elongation affected the fixed growth of preformed subapical buds of blue spruce (Piceapungens Engelm., 'Fat Albert' and 'Foxtail') but not apical bud growth. Plant volume decreased when nights were >14 °C, primarily because of reduced growth of each elongating subapical bud and not a decrease in number of growing points. Apical buds produced under a 30 °C day generally were broader and more flat topped, with more open, noncompressed bud scales than those produced under a 26 °C day. Night temperature had a greater effect on apical bud morphology than day temperature. The extent of bud break and growth during year n + 1 was inversely related to night temperature under which bud initiation and development occurred and directly related to the degree of apical bud normality noted during year n. 'Foxtail' had a greater degree of apical bud normality, a higher percentage of bud break, and retained its characteristic growth habit better than 'Fat Albert' following bud formation at high day and night temperatures. 'Foxtail' also had the lowest respiration rate and appeared to minimize detrimental effects of high temperatures through maintenance of a relatively low respiratory Q10 value (increase in respiration rate for each 10 °C increase in temperature) over a wide temperature range.

APA, Harvard, Vancouver, ISO, and other styles

8

Monteiro, Ana I., Aureliano C. Malheiro, and Eunice A. Bacelar. "Morphology, Physiology and Analysis Techniques of Grapevine Bud Fruitfulness: A Review." Agriculture 11, no. 2 (February 5, 2021): 127. http://dx.doi.org/10.3390/agriculture11020127.

Full text

Abstract:

Grapevine reproductive development extends over two growing seasons (vegetative cycles), for the complete formation of inflorescences and clusters. Induction and floral differentiation, the mechanism that leads to the formation of reproductive structures inside dormant buds, is a complex process divided into three well-defined stages (formation of anlagen, inflorescence primordia and flowers). This sequence of stages comprises morphological, biochemical, and physiological events, influenced by a set of environmental and endogenous factors. Inflorescence primordia formation determines the potential number of clusters that will be formed in the following growing season. Thus, during bud dormancy, viticulturists and winemakers can obtain a first yield prediction through the determination of bud fruitfulness. This information allows adjustments to be made to bud load, promoting balanced yield and fruit quality and higher commercial value. The present review describes the morphology and physiology of the formation of inflorescence primordia, as well as discusses the main abiotic and biotic factors involved, including a physiological disorder known as primary bud necrosis. In the same way, we intend to approach the more used techniques of analysis of fruitfulness and its importance for a robust yield forecasting.

APA, Harvard, Vancouver, ISO, and other styles

9

Sakai, Satoki. "The relationship between bud scale morphology and indeterminate and determinate growth patterns in Acer (Aceraceae)." Canadian Journal of Botany 68, no. 1 (January 1, 1990): 144–48. http://dx.doi.org/10.1139/b90-019.

Full text

Abstract:

Bud scale morphology was investigated for 18 species of Japanese Acer, including 12 species that exhibit indeterminate growth and 6 that exhibit determinate growth. The bud scales of the inner pairs of terminal buds and all bud scales of lateral buds exhibited different patterns of development in the two types of species. In the indeterminate species, the formation of rudimentary laminae was observed, whereas no laminae formation was observed in the determinate species. Loss of laminae could have occurred over the course of the evolutionary specialization of bud scales, since the bud scales of the indeterminate species are assumed to be more primitive than those of the determinate species. A consideration of the bud morphology of Dipteronia, an outgroup of Acer, supported this view. This study then suggests that in Acer a determinate growth pattern actually evolved from a pattern of indeterminate growth. It seems likely that for some member(s) of the genus Acer, sites of regeneration began to shift from sites containing less shady area to those containing more, and that this shift was associated with the evolution from indeterminate to determinate growth.

APA, Harvard, Vancouver, ISO, and other styles

10

Tickle, C. "Retinoic acid and chick limb bud development." Development 113, Supplement_1 (January 1, 1991): 113–21. http://dx.doi.org/10.1242/dev.113.supplement_1.113.

Full text

Abstract:

The chick limb bud is a powerful experimental system in which to study pattern formation in vertebrate embryos. Exogenously applied retinoic acid, a vitamin A derivative, can bring about changes in pattern and, on several grounds, is a good candidate for an endogenous morphogen. As such, the local concentration of retinoic acid might provide cells with information about their position in relation to one axis of the limb. Alternatively, retinoic acid may be part of a more complex signalling system. Homeobox genes are possible target genes for regulation by retinoic acid in the limb. In particular, one homeobox gene, XlHbox 1 is expressed locally in the mesenchyme of vertebrate forelimbs and might code for an anterior position. When the pattern of the chick wing is changed by retinoic acid or by grafts of signalling tissue such that anterior cells now form posterior structures, the domain of XlHbox 1 expression expands rather than contracts. The expansion of XlHbox 1 expression correlates with shoulder girdle abnormalities. Retinoic acid application leads to visible changes in bud shape and this allows dissection of the way in which patterning is co-ordinated with morphogenesis. Results of recombination experiments and studies of changes in the apical ridge and proliferation in the mesenchyme suggest the following scheme: retinoic acid is involved in specification of position of mesenchyme cells; this specification determines their local interaction with the ridge that controls ridge morphology; the thickened apical ridge permits local proliferation in the underlying mesenchyme. The recent advances in molecular biology that permit analysis of the expression of various interesting genes in developing limbs hold out the promise that further investigation may soon allow a complete account of the patterning process in one part of the vertebrate embryo.

APA, Harvard, Vancouver, ISO, and other styles

More sources

Dissertations / Theses on the topic "Bud morphology and development"

1

Couper, Christine Judith. "Morphology and physiology of bud development and coning in Pinus contorta Dougl." Thesis, University of Edinburgh, 1987. http://hdl.handle.net/1842/12010.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Ott, Jacqueline Patricia. "Bud bank morphology, dynamics, and production in perennial grasses." Thesis, Manhattan, Kan. : Kansas State University, 2009. http://hdl.handle.net/2097/1807.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Schwager, Hannes. "Functional Anatomy and Development of Cactus Ramifications." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-175892.

Full text

Abstract:

Cacti (Cactaceae) represent a family of highly specialized angiosperm plants with a native range of distribution restricted to the American continents. Columnar cacti of the sub-family Cactoideae evolved in adaptation to their arid or semi-arid habitats characteristics that distinguish them from most other dicot plants, e.g. the stem succulence with a strongly vascularized storage parenchyma and the presence of the spine wearing areoles. Although cacti have been in cultivation since the discovery of America, some studies even suggest the agricultural use in pre-colombian times, and many scientific investigations were carried out on the functional morphology and anatomy with regard to biomechanical adaptations of the found structures, no research focused on the branch-stem attachment. The most conspicuous features of such a ramification are the pronounced constrictions at the branch-stem junctions that are also present in the lignified vascular structures within the succulent cortex. Based on Finite Element Analyses of ramification models it could be demonstrated that these indentations in the region of high flexural and torsional stresses are not regions of structural weakness, e.g. allowing vegetative propagation. On the contrary, they can be regarded as anatomical adaptations to increase the stability by fine-tuning the stress state and stress directions in the junction along prevalent fiber directions. The development of the woody support structure within the succulent cortex of the parental shoot can be traced back to the leaf and bud traces of the dormant axillary buds. Surprisingly, these initials also develop into another woody structure supporting the flowers of the cacti. As these two support structures differ significantly in their macroscopic and microscopic anatomy and as they develop from the same initial state as leaf/bud traces, another objective of this work was to analyze the secondary growth of the two structures with traditional botanic investigation methods. The results of these investigations reveal a wood dimorphism consisting of an early parenchymatous phase followed later by fibrous wood in both kind of support structure. In vegetative branches, the woody support structures have the typical ringlike arrangement as found in the stele of the parental shoot, whereas the flower support structures have a reticular arrangement of interconnected woody strands. This fundamentally different anatomy of the support structures results from the formation of an interfascicular cambium between the leaf/bud traces when a vegetative branch forms or its absence in the case of a flower. After shedding light on the functional morphology and anatomy of the cactus ramification and their development the question arises if the found load adaptation strategies may serve to improve technical fiber composite structures analogue to the design recommendation developed from the biomechanical analyses of tree ramifications. Such a biomimetic transfer from the cactus ramification as biological role model to a technical implementation and the adaptation of the fine-tuned geometric shape and arrangement of lignified strengthening tissues might contribute to the development of alternative concepts for branched fiber-reinforced composite structures within a limited design space.

APA, Harvard, Vancouver, ISO, and other styles

4

Kluge, Janina Verfasser], Ulrich [Gutachter] Kück, and Dominik [Gutachter] [Begerow. "Multicellular development of the two β-Lactam producers Acremonium chrysogenum and Penicillium chrysogenum : sporulation and hyphal morphology are controlled by subunits of the bud site selection system and the septation initiation network / Janina Kluge ; Gutachter: Ulrich Kück, Dominik Begerow ; Fakultät für Biologie und Biotechnologie." Bochum : Ruhr-Universität Bochum, 2019. http://d-nb.info/1177364263/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Kluge, Janina [Verfasser], Ulrich Gutachter] Kück, and Dominik [Gutachter] [Begerow. "Multicellular development of the two β-Lactam producers Acremonium chrysogenum and Penicillium chrysogenum : sporulation and hyphal morphology are controlled by subunits of the bud site selection system and the septation initiation network / Janina Kluge ; Gutachter: Ulrich Kück, Dominik Begerow ; Fakultät für Biologie und Biotechnologie." Bochum : Ruhr-Universität Bochum, 2019. http://d-nb.info/1177364263/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Reynolds, Louis Percy. "Reproductive bud development in pears." Thesis, Stellenbosch : Stellenbosch University, 2004. http://hdl.handle.net/10019.1/50079.

Full text

Abstract:

Thesis (MScAgric)--University of Stellenbosch, 2004.
ENGLISH ABSTRACT: Reproductive bud development is the first step of sexual reproduction of plants and is a major factor determining yield. For consistent yields in pears, knowledge of the development of the reproductive bud is required. The development of the reproductive bud with emphasis on the primordial bourse shoot was studied. The bourse shoot is important because of the ability of a bourse shoot to become reproductive, which can lead to bourse-overbourse bearing. The progression of reproductive bud development in 'Forelle' and 'Rosemarie' was studied from primordial bourse shoot initiation until dormancy the following season. The primordial bourse shoot was initiated in January 2003. The primordial bourse shoot progressed during dormancy with a plastochron length of 60 days in June. The rate of preformed leaf formation increased rapidly until August when the plastochron was 5 days. 'Rosemarie's' primordial bourse shoot development was more advanced at full bloom, which is a possible reason for the higher bourse-aver-bourse bearing habit of the cultivar. The number of leaves of the bourse shoot was more than with the 'Forelle', which has a low tendency for bourseover- bourse bearing. Flower initiation of the terminal bourse shoot bud was 56 and 77 d.a.f.b. for the 'Forelle' and 'Rosemarie', respectively. Initiation was well correlated with bourse shoot growth cessation. An increase in mitotic activity occurred during flower differentiation of the terminal bourse bud with a peak of floral appendage formation during December and January. From February until dormancy enlargement of the floral parts took place. The influence of severe dormant pruning and the quality of 2- year-old wood, on reproductive bud sink strength of 'Packham's Triumph' trees were investigated. The sink strength of primary growth increased by 40 % for short bearing units (SBU's) and 140 % for thick bearing units (BU's) as compared to long bearing units (LBU's) and thin BU's respectively. The increase in primary growth was due to better fruit set and larger fruit in the SBU's and the thick BU's. Since the increase in primary growth is less for SBU's compared to thick BU's the conclusion, which can be made, is that branch diameter influenced sink strength more than branch length. With increase in branch diameter the size of the xylem transport system increases more than that of the phloem. The increase in xylem transported metabolites, in particular root derived cytokinin seems to predominantly influence the magnitude of the sink strength. The influence of scoring and 6-benzyladenine (BA) application, during the flower induction phase on 'Doyenne du Cornice' and 'Rosemarie', were studied. Scoring caused a 50 % increase in fruit number of 'Doyenne du Cornice', which resulted in a 38 % increase in yield compared to the control. The increase in fruit number was due to higher percentage reproductive buds and improved bud quality. For the 'Rosemarie' scoring at the correct time resulted in a 40 % increase in reproductive buds. Scoring disrupts basipetal transport in the phloem, which results in the removal of apical dominance and an increase in root derived cytokinin's. More meristems can respond to inductive conditions and high quality reproductive buds develop. The combination of BA and scoring, lead to more flowers per inflorescence in 'Doyenne du Cornice'.
AFRIKAANSE OPSOMMING: Reproduktiewe knopontwikkeling by die peer Reproduktiewe knopontwikkeling is die eerste fase van reproduktiewe voortplanting in plante en is belangrik, want dit bepaal die oesgrootte. Vir konstante oeste in peerproduksie moet reproduktiewe knopontwikkeling verstaan word. Die ontwikkeling van die reproduktiewe knop, meer spesifiek die primordiale beursloot is bestudeer. Die beursloot is belangrik a.g.v. die beurs-oorbeurs drawyse. Die ontwikkeling van die reproduktiewe knop van 'Forelle' en 'Rosemarie' is gevolg. Die primordiale beursloot is Januarie 2003 geinisieër en ontwikkel tydens die boom se dormante fase met 'n plastochron van 60 dae gedurende Junie. Preformeerde blaarvormingstempo neem toe tot Augustus waar die plastochron 5 dae is. 'Rosemarie' se primordiale beursloot ontwikkeling was meer gevorderd teen volblom, met meer beurslootblare reeds teenwoordig. Dit is dalk die rede vir die hoër tendens van beurs-oor-beurs drag van die kultivar in vergelyking met 'Forelle'. Die terminale beurslootknop is 56 en 77 dae na volblom geïniseer vir 'Forelle' en 'Rosemarie' respektiewelik. Inisiasie was goed gekorreleerd met beeïndiging van beurslootgroei. Blomdifferensiasie het inisiasie gevolg met 'n toename in mitotiese aktiwiteit, blomaanhangsel vorming het 'n piek bereik III Desember en Januarie. Vanaf Februarie tot dormansie het ontwikkeling hoofsaaklik in vergroting van blomorgane plaasgevind. Die invloed van strawwe dormante snoei en die kwaliteit van 2-jaar-oue dra-eenhede op sinksterkte van reproduktiewe knoppe van 'Packham's Triumph' pere is ondersoek tydens die 2002/03 seisoen. Die sinksterkte van primêre groei het 40 % toegeneem vir kort dra-eenhede en 140 % vir dik dra-eenhede in vergelyking met lang dra-eenhede en dun dra-eenhede respektiewelik. Die toename in primêre groei vir kort en dik dra-eenhede kon toegeskryf word aan beter vrugset en groter vrugte. Omdat die toename in sinksterkte minder is vir kort dra-eenhede in vergelyking met dik dra-eenhede kan die afleiding gemaak word dat dra-eenheiddikte sinksterkte meer beïnvloed as dra-eenheidlengte. Met 'n toename in dra-eenheiddikte, neem xileemvaatweefsel meer toe as floeëmvaatweefsel. 'n Toename in xileem getranslokeerde metaboliete, meer spesifiek wortel vervaardigde sitokiniene beïnvloed die sinksterkte van die reproduktiewe knoppe. Die invloed van ringelering (ringsnit deur floeëm sonder bas verwydering) en 6-bensielaldenien (BA) toediening tydens reproduktiewe knopinduksie van 'Doyenne du Cornice' en 'Rosemarie' is ondersoek. Ringelering het 'n 50 % toename in vrugaantal veroorsaak wat die oes met 38 % laat toeneem het in vergelyking met die kontrole, vir 'Doyenne du Cornice'. Die toename in vrugte was a.g.v. 'n hoër persentasie reproduktiewe knoppe en toename in blomkwaliteit. By 'Rosemarie' het ringelering 'n 40 % toename in reproduktiewe knoppe bewerkstellig. Ringelering onderbreek die basipetale vervoer in die floeëm, verwyder dus apikale dominansie, met die gevolg dat daar 'n toename in wortel geproduseerde sitokiniene is. Meer meristeme reageer op induktiewe toestande en reproduktiewe knoppe van hoë kwaliteit vorm. Die kombinasie van ringelering en BA -toediening het meer blomme per reproduktiewe knop veroorsaak.

APA, Harvard, Vancouver, ISO, and other styles

7

Stojanovski, Todor. "Bus rapid transit (BRT) and transitoriented development (TOD) : How to transform and adjust the Swedish cities for attractive bus systems like BRT? What demands BRT?" Licentiate thesis, KTH, Trafik och logistik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-128526.

Full text

Abstract:

Bus rapid transit (BRT) is an innovative bus system with sophisticated vehicles and inflexible busways integrated in the cities, high capacity and high quality, high speed and frequency, distinctive image and comfort. Many in Sweden believe that is impossible to introduce BRT, even though the Swedish towns and cities can benefit from the image, speed and frequency that BRT symbolizes. The archipelago-like urbanization, urban sprawl and the uncompetitive journey times of public transportation compared with the private car are identified as main obstacles. New questions emerged: Is it possible to transform and adjust the Swedish towns and cities for BRT? What demands BRT? How is transit-oriented development (TOD) applicable in a Swedish context as a policy to integrate cities and BRT? In this licentiate thesis I investigate the interrelationship between bus transportation and neighborhoods, between BRT and urban form as well as the possibilities to introduce busways and BRT, to trigger TOD and to transform the Swedish towns and cities for BRT. Much has been written about BRT, but seldom by architects or urban planners and designers. BRT and TOD are seen though urban form and processes of urbanization within a morphological tradition established by Kevin Lynch. BRT is represented by paths and nodes that disperse distinctive attractiveness pattern of desirability cores that shape neighborhoods as districts. TOD is about synchronizing the everyday urban life with public transportation systems. BRT-TOD is defined as a policy to recognize desirability cores spread by the different infrastructures of BRT and promote development of urban form within their attractiveness pattern at urban and regional scale. BRT-TOD is discussed as a concept of BRT metropolis in context of the urbanization of Swedish towns and cities. TOD is defined morphologically as public transport cities. A public transport city is a city that in its development adapted to specific public transportation systems. TOD is nothing new in Europe or Sweden. To find regularities of the effect of public transportation systems on cities I do a historical overview of the Swedish towns and cities. In the end the position of bus and BRT, public transport cities and TOD and possibilities of future urban transformation of the smaller and larger Swedish cities towards BRT metropolises are discussed in context of today’s “‘system’ of automobility” and widespread car society and the emerging knowledge society and its postmodern fringes of urbanization.

QC 20130917

APA, Harvard, Vancouver, ISO, and other styles

8

Vargesson, Neil Andrew. "Cell fate and signalling in chick limb bud development." Thesis, University College London (University of London), 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.287476.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Hirst, Peter Michael. "Rootstock effects on growth, bud development and flowering of apple /." The Ohio State University, 1994. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487856906261525.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Chen, Kuang-Yu. "Type II MADS-box genes associated with poplar apical bud development and dormancy." College Park, Md. : University of Maryland, 2008. http://hdl.handle.net/1903/8152.

Full text

Abstract:

Thesis (Ph. D.) -- University of Maryland, College Park, 2008.
Thesis research directed by: Dept. of Plant Science and Landscape Architecture. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

APA, Harvard, Vancouver, ISO, and other styles

More sources

Books on the topic "Bud morphology and development"

1

Saunders-Smith, Gail. From bud to blossom. Mankato, Minn: Pebble Books, 1998.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

2

Panditharatne, B. L. Negombo City (Municipality): Morphology & development. Colombo: B.L. Panditharatne, 2012.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

3

Rusho, W. L. Oral history interviews: W. L. (Bud) Rusho. Denver, Colo: Bureau of Reclamation, Oral History Program, 2008.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

4

Rusho, W. L. Oral history interviews: W. L. (Bud) Rusho. Denver, Colo: Bureau of Reclamation, Oral History Program, 2008.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

5

Hesse, M., and F. Ehrendorfer, eds. Morphology, Development, and Systematic Relevance of Pollen and Spores. Vienna: Springer Vienna, 1990. http://dx.doi.org/10.1007/978-3-7091-9079-1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Jenyon, Malcolm K. Oil and gas traps: Aspects oftheir seismostratigraphy, morphology and development. Chichester: Wiley, 1990.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

7

The wild oat inflorescence and seed: Anatomy, development, and morphology. Regina, Sask: Canadian Plains Research Center, 1990.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

8

Grande, Terry. Morphology and development of the postcranial skeleton in the channel catfish Ictalurus punctatus (Ostariophysi: Siluriformes). [Chicago, Ill.]: Field Museum of Natural History, 2002.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

9

Schwalm, Fritz E. Insect morphogenesis. Basel: Karger, 1988.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

10

Mahler, D. Luke. The palatal dentition in squamate reptiles: Morphology, development, attachment, and replacement. Chicago, Ill: Field Museum of Natural History, 2006.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

More sources

Book chapters on the topic "Bud morphology and development"

1

Sealey, Linda R. "Morphology." In Encyclopedia of Child Behavior and Development, 975–77. Boston, MA: Springer US, 2011. http://dx.doi.org/10.1007/978-0-387-79061-9_1845.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Bonnett, O. T. "Morphology and Development." In Oats and Oat Improvement, 41–74. Madison, WI, USA: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, 2015. http://dx.doi.org/10.2134/agronmonogr8.c3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Kuure, Satu. "Analysis of Migration in Primary Ureteric Bud Epithelial Cells." In Kidney Development, 147–55. Totowa, NJ: Humana Press, 2012. http://dx.doi.org/10.1007/978-1-61779-851-1_13.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Fujiwara, Shigeki, Mika Kamimura, Mitsuko Ohashi, and Kazuo Kawamura. "Molecular Bases of Bud Development in Ascidians." In The Biology of Ascidians, 300–304. Tokyo: Springer Japan, 2001. http://dx.doi.org/10.1007/978-4-431-66982-1_47.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Cardinaels, Ruth, and Paula Moldenaers. "Morphology Development in Immiscible Polymer Blends." In Polymer Morphology, 348–73. Hoboken, NJ, USA: John Wiley & Sons, Inc, 2016. http://dx.doi.org/10.1002/9781118892756.ch19.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Pantani, Roberto, Felice De Santis, and Vito Speranza. "Morphology Development and Control." In Polypropylene Handbook, 243–94. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-12903-3_5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Rohde, A., and W. Boerjan. "Insights into Bud Development and Dormancy in Poplar." In Tree Physiology, 33–52. Dordrecht: Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-015-9803-3_3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Ota, Kinya G. "Varieties of Goldfish Morphology." In Goldfish Development and Evolution, 45–73. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-0850-6_3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Gillis, Steven, and Dorit Ravid. "10. Language-specific effects on the development of written morphology." In Morphology 2000, 129–36. Amsterdam: John Benjamins Publishing Company, 2002. http://dx.doi.org/10.1075/cilt.218.11gil.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Utracki, L. A. "Polymer Structure and Morphology." In Structure Development During Polymer Processing, 3–46. Dordrecht: Springer Netherlands, 2000. http://dx.doi.org/10.1007/978-94-011-4138-3_1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Bud morphology and development"

1

Takao, Yasumasa, Tsuyoshi Asai, Yasuhiro Shimada, Kiyotaka Shuzenji, and Takeshi Tachibana. "Development of Particulate Unit Operations and Morphology Property Relations of Particulate Products." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-41195.

Full text

Abstract:

Some particulate unit operations (apparatus engineering) are developed to control the particle morphology. The innovative aspect of this operation is the correspondence between the necessary material properties and their apparatus optimization. Spherical powders of aluminum oxynitride and aluminum nitride are directly prepared by flame synthesis (in spite of the fact that oxygen serves as an indispensable reactant). Non-oxide powders are commonly non-spherical with a size below the submicrometer scale. The major limiting factors in their synthesis are free energy, reaction temperature, and reaction rate. The innovative aspect of this flame synthesis technology assisted by DC arc plasma concerns the reducing gas composition beyond 1500 K. A chemical equilibrium calculation indicates that the plasma heating compensates the lack of reaction temperature under a low oxygen condition. This burner realizes a high-speed reaction with the help of reactive species in the arcs. We also report the multilayer-coated cosmetic powders with regard to material application, and the powder bed shear force evaluation equipment with regard to apparatus optimization.

APA, Harvard, Vancouver, ISO, and other styles

2

Liu, Ming, and Feng Song. "Urban morphology in China: origins and progress." In 24th ISUF 2017 - City and Territory in the Globalization Age. Valencia: Universitat Politècnica València, 2017. http://dx.doi.org/10.4995/isuf2017.2017.5654.

Full text

Abstract:

Author name: Ming Liu, Feng Song* Affiliation: College of Urban and Environmental Sciences. Peking UniversityAdress: Room 3463, Building Yifuer, Peking University, Haidian district, Beijing, China 100871 E-mail: liumingpku1992@163.com, songfeng@urban,pku.edu.cn*Telephone nember: +8618810328816, +8613910136101* Keywords: urban morphology, disciplinary history, Conzen, China Abstract: This paper traces the origins and development of indigenous urban morphological research in China. It also considers the adoption of the theories and methods of the Conzenian School. Urban morphological research in China is carried out in different disciplines: mainly archaeology, geography, and architecture. The earliest significant work was within archaeology, but that has been widely ignored by current urban morphological researchers. As an urban archaeologist whose first degree was in architecture, Zhengzhi Zhao worked on the Studies on the reconstruction of the city plan of Ta-Tu in the Yuan Dynasty in 1957. He uncovered the original city plan of Ta-Tu (now Beijing) in the Yuan Dynasty by applying street pattern analysis. Before the Cultural Revolution, Pingfang Xu recorded and collated the research findings of Zhao, who was by then seriously ill, so that the methods he developed could be continued with the help of other scholars especially archaeologists. His methods of study are still used in studies of urban form in China today. Later, the dissemination of the Conzenian School of thought, aided by two ISUF conferences in China, promoted the development of studies of Chinese urban form. With the help of Jeremy Whitehand, researchers, including the Urban Morphology Research Group of Peking University, applied the theories and methods of the Conzenian School through field work and empirical studies. Taking the opportunity of the 110th anniversaries of the birth of both M.R.G. Conzen and Zhengzhi Zhao, this paper summarizes multidisciplinary urban morphological research in China.

APA, Harvard, Vancouver, ISO, and other styles

3

Bishop, Jennifer, Makiko Kouchi, Masaaki Mochimaru, Martine Mientjes, and Jeff Pisciotta. "The Development of Running in Japanese Children: Foot Pressure Evaluation." In ASME 2009 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2009. http://dx.doi.org/10.1115/sbc2009-206975.

Full text

Abstract:

Foot morphology and gait patterns of children have been explored in order to understand the developmental stages [1–3]. However, these studies have mostly focused on static and walking conditions. The purpose of this study was to investigate the development of running in children between the ages of 3 and 11 years and to investigate gender differences. This was done as a multi-lab, multi-country study; but the foot pressure results from the Japanese children are presented here.

APA, Harvard, Vancouver, ISO, and other styles

4

Nasr, Amal, Aya Omar, Maha Alser, Huseyin Yalcin, and Fatiha Benslimane. "Unraveling Gene Expression Profiles of Cardiac Genes that Participate in Embryonic development of Congenital Heart Defects using Chick Embryo." In Qatar University Annual Research Forum & Exhibition. Qatar University Press, 2020. http://dx.doi.org/10.29117/quarfe.2020.0196.

Full text

Abstract:

Hypoplastic left heart syndrome (HLHS) is a rare but serious subtype of congenital heart defect (CHDs) at which the hemodynamics are disturbed. In this project, HLHS was introduced surgically by left atrial ligation (LAL) to embryonic chicks and the subsequent effects of it were studied. Different tests were done post-LAL to study cardiac morphology, function, and gene expression of cardiac markers.

APA, Harvard, Vancouver, ISO, and other styles

5

Sharifullina, D. T., R. N. Nizamov, R. N. Nizamov, I. R. Yunusov, and G. I. Rakhmatullina. "STUDYING THE POSSIBILITY OF JOINT CULTIVATION OF B.BIFIDUM AND E.COLI ON ADAPTED NUTRIENT MEDIA." In STATE AND DEVELOPMENT PROSPECTS OF AGRIBUSINESS Volume 2. DSTU-Print, 2020. http://dx.doi.org/10.23947/interagro.2020.2.423-426.

Full text

Abstract:

Microbial substances introduced into the body of animals increase radio stability and reduce the mortality rate. The greatest significance can be obtained by using vaccines based on bacteria of the intestinal-typhoid group, which in the process of life produce antibacterial substances, enzymes, antigens, entero-and exotoxins, and cytokines with radioprotective properties. The tests revealed a complex mechanism of interaction between bifidobacteria and Escherichia in their joint cultivation. The biomass accumulation of E.coli strain «PL-6» and B.bifidum 1 during co-cultivation depended on the ratio of live bacteria E.coli strain «PL-6» and B.bifidum 1. Microcopy of smears made on days 1-4 from monocultures showed that the grown microbes in morphology corresponded to these cultures. The concentration of microorganisms, determined by tenfold dilution by the above method, was 1x109 CFU/ml - E.coli and 1x107 CFU/ml B.bifidum, with a sowing dose of each type of microbe 1x108 CFU/ml. Microcopy of smears made from a mixture of cultures showed that a dilution of 0,9:1,1-1,0:1,0 is most optimal for co-growing bifidum and Escherichia coli, since with a relatively equal number of monocultures on the 1st day Escherichiae multiply intensely, splitting the components of the Blaurock medium and inhibiting the growth of bifidum, but from the 3rd day B.bifidum begins to prevail, splitting E.coli and assimilating substances cleaved by E.coli.

APA, Harvard, Vancouver, ISO, and other styles

6

Xiao, Yan, Bingxin Wang, and Hui Sun. "Quantitative analysis of the topologic morphology of urban street network based on system coupling theory." In Post-Oil City Planning for Urban Green Deals Virtual Congress. ISOCARP, 2020. http://dx.doi.org/10.47472/eogp1958.

Full text

Abstract:

Researchers are increasingly paying attention to urban morphology to address problems regarding urban form and to sustain the development of urban economy, society, and environments. A preliminary research framework was built to conduct coupling analyses on street form and block functions. These analyses are implemented using a planar graph method and using quantitative descriptions of the urban streets functions, but the coupling relation of street morphology and block function cannot be well defined, and it often cannot be analyzed in multi-level and multi-scale. Along with two proposed measuring parameters (connectivity and accessibility of coupling networks), the framework was used to quantitatively analyze the coupling coordination degree of the topologic morphology and functional structure of block samples for various urban streets. Through empirical research on different samples from Dalian, China, we validated the operability and urban street network coupling analysis in different spatial regions in built environments. This technique can be used to study the overall spatial morphology and design urban streets at different scales and scopes. Further, it helps recognize the space and cultural connotations of urban streets via spatial coupling, compare different urban textures, and predict design results to foster discussions on the optimization of urban planning design schemes.

APA, Harvard, Vancouver, ISO, and other styles

7

Peltz, Cathryn D., Kristin Ciarelli, Jeffrey A. Haladik, Michael J. McDonald, Nicole Ramo, Vasilios Moutzouros, and Michael J. Bey. "The Relationship Between In-Vivo Glenohumeral Joint Motion and Joint Morphology in Rotator Cuff Repair Patients and Healthy Control Subjects." In ASME 2011 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2011. http://dx.doi.org/10.1115/sbc2011-53240.

Full text

Abstract:

Rotator cuff tears are a common condition that adversely affect function and quality of life. Altered glenohumeral joint (GHJ) motion is believed to contribute to the development of rotator cuff tears. Previous research has demonstrated relationships between in-vivo joint motion and bony morphology (particularly in the knee [e.g., 1]), and similar relationships have been reported in cadaveric shoulder studies [2, 3]. However, the extent to which these relationships exist under in-vivo conditions or if these relationships are altered in shoulders with pathologic conditions is not known. Thus, the objective of this study was to assess the relationship between glenoid/humerus morphology and in-vivo GHJ motion in healthy control shoulders and rotator cuff repair patients. We hypothesized that a relationship exists between glenoid/humerus morphology and GHJ motion in healthy control shoulders, but that this relationship is altered in rotator cuff patients.

APA, Harvard, Vancouver, ISO, and other styles

8

Borduin, Russell, and Wei Li. "Development of Foamed PES-Zeolite Mixed Matrix Membranes for PEM Fuel Cell Humidification." In ASME 2016 11th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/msec2016-8786.

Full text

Abstract:

Polymer electrolyte membrane (PEM) fuel cell efficiency must be improved in order to become cost-competitive with fossil fuel based technologies. Approaches to increasing cost efficiency include raising fuel cell operating temperature, reducing component cost and properly controlling fuel cell humidification. We sought to fulfill all three requirements by developing a new low-cost, high-temperature humidification membrane material. Currently Nafion dominates the membrane humidifier market due to its excellent water transport characteristics, but its high price (∼$1000/m2) and low maximum operating temperature (<90°C) drive up fuel cell cost. We developed a competing PES-zeolite mixed matrix membrane (MMM) with a porous microstructure. Solvent casting was used to form the initial PES-zeolite films, followed by solid state foaming to alter the film morphology and create a porous structure. The effects of both zeolite weight loading and foaming duration on membrane permeability were investigated. Membrane measurement results show both foaming and increased zeolite weight loading enhance membrane water permeability close to levels seen in Nafion. Meanwhile, the membranes satisfies the Department of Energy (DOE) crossover gas requirement for humidification membrane materials.

APA, Harvard, Vancouver, ISO, and other styles

9

Xu, Feng, and Don Metzger. "Modeling of In-Situ Hydride Growth in Zr-2.5%Nb." In ASME 2011 Pressure Vessels and Piping Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/pvp2011-58059.

Full text

Abstract:

The presence of Zr hydrides can greatly reduce the ductility and fracture toughness in a pressure vessel made of Zr alloy. Understanding how the hydrides form and grow is critical to flaw assessment for the pressure tubes. The process of hydride growth in Zr-2.5%Nb has been monitored in-situ in high-energy synchrotron X-ray radiation. The C-shaped specimen with a V-notch was held under constant load at a temperature where hydride formation was ensured. The development of hydride size and elastic strains in both the hydrides and the Zr matrix was recorded. Afterwards, the hydride morphology was characterized by Scanning Electronic Microscopy. A finite element program in combination with a process zone model and a diffusion model has been used to interpret the experimental data for better understanding the hydride growth process. The hydride length and morphology are well predicted, given that the information of hydride size and hydrostatic stress is properly updated and exchanged between the process zone and diffusion models. The effect of creep has been included in the modeling but found relatively small compared to that of hydride volumetric expansion. The elastic strains in Zr are well reproduced except that disagreement with the experiment is found in the hydrided region. This analysis provides further evidence that the process zone and diffusion models can be used to predict the hydride size and morphology development. Further modeling at a micro-structural level is needed for improving predictions of the stress/strain state in the hydrides, which is essential to the development of a sound hydride crack initiation model.

APA, Harvard, Vancouver, ISO, and other styles

10

Srikanth, M., H. Misak, S. Y. Yang, and R. Asmatulu. "Effects of Morphology, Concentration and Contact Duration of Carbon-Based Nanoparticles on Cytotoxicity of L929 Cells." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-52296.

Full text

Abstract:

Study of nanomaterials and their characteristics have added a new dimension to the rapid development of nanotechnology. Carbon-based nanomaterials are considered to be one of the key elements in nanotechnology since they are known to exhibit a variety of unusual properties which make them beneficial in the field of medicine and bioengineering. Nanoparticles, because of their size are capable of entering the human body by different modes and can spread to different parts by physical translocation or chemical clearance processes and hence requires a thorough understanding of their interaction with biological molecules, sub-cellular units, cells, tissues, and organs. Cytotoxicity of four types of carbon based nanomaterials — Carbon Nanowire (CNW), Carbon Nanotubes (CNTs), Graphene and Fullerene, on L929 mouse fibroblast cancerous cells is evaluated by MTT Assay. An analysis based on morphology, concentration and contact duration is discussed in this paper. Graphene was the most toxic material with an average toxicity of 52.24%, followed by CNTs, Fullerene and CNW. The differences in the toxicity levels has been attributed to different structural arrangements and aspect ratio. Lower concentration levels exhibited lower levels of cytotoxicity in three of the four nanomaterials but contact duration failed to show any fixed trend.

APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Bud morphology and development"

1

Mayne, Casey, David May, and David Biedenharn. Empirical analysis of effects of dike systems on channel morphology and flowlines. Engineer Research and Development Center (U.S.), March 2021. http://dx.doi.org/10.21079/11681/39799.

Full text

Abstract:

A phased study of the dike fields within the Vicksburg and Memphis Districts of the US Army Corps of Engineers was conducted to document the channel morphology trends since dike construction on the Lower Mississippi River (LMR). This included the development of the hydrographic survey database and methodology utilized to identify changes in channel geometry in response to dike construction. A subsequent report will provide further refinements to the approach and results of the comprehensive assessment. Recent Mississippi River Geomorphology and Potamology program efforts have employed the database developed by Mr. Steve Cobb to assess the geomorphic changes in 21 dike systems along the LMR. Previous studies using this database have indicated that the dike fields have not caused a loss of channel capacity. Furthermore, these efforts suggested that the trends in the dike fields are closely related to the long-term geomorphic trends along the LMR. Previous efforts using the Cobb database provided considerable insight into the dike effects on the LMR, but they were limited spatially and temporally. In this study, a database and protocols were developed to allow for a more robust assessment of dike field impacts and to extend the spatial and temporal extents of the analysis.

APA, Harvard, Vancouver, ISO, and other styles

2

Simon, Pierre Clement, Michael Tonks, Arthur Motta, and Long Qing Chen. Development of a fully validated quantitative model of hydride morphology in zirconium alloy nuclear fuel cladding. Office of Scientific and Technical Information (OSTI), September 2017. http://dx.doi.org/10.2172/1473586.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Kim, H. C. Templating Organosilicate Vitrification Using Unimolecular Self Organizing Polymers: Evolution of Morphology and Nanoporosity Development with Network Formation. Office of Scientific and Technical Information (OSTI), December 2004. http://dx.doi.org/10.2172/839714.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Martin, Gregory. The Rocky Ledge Fault, Shasta County, NE California: Development and Morphology of a Quaternary Oblique Normal Fault in Basalt. Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.7425.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Asaoka, Junya, Takahiro Shinoda, Katsumi Mori, Takashi Kano, and Kenichiro Kimura. Development of New Alloy Steel and Its Application for Both High Fatigue Strength and High Machinability by Utilizing New Inclusion Morphology Control Technology. Warrendale, PA: SAE International, May 2005. http://dx.doi.org/10.4271/2005-08-0094.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Cooper, Christopher, Jacob McDonald, and Eric Starkey. Wadeable stream habitat monitoring at Congaree National Park: 2018 baseline report. National Park Service, June 2021. http://dx.doi.org/10.36967/nrr-2286621.

Full text

Abstract:

The Southeast Coast Network (SECN) Wadeable Stream Habitat Monitoring Protocol collects data to give park resource managers insight into the status of and trends in stream and near-channel habitat conditions (McDonald et al. 2018a). Wadeable stream monitoring is currently implemented at the five SECN inland parks with wadeable streams. These parks include Horseshoe Bend National Military Park (HOBE), Kennesaw Mountain National Battlefield Park (KEMO), Ocmulgee Mounds National Historical Park (OCMU), Chattahoochee River National Recreation Area (CHAT), and Congaree National Park (CONG). Streams at Congaree National Park chosen for monitoring were specifically targeted for management interest (e.g., upstream development and land use change, visitor use of streams as canoe trails, and potential social walking trail erosion) or to provide a context for similar-sized stream(s) within the park or network (McDonald and Starkey 2018a). The objectives of the SECN wadeable stream habitat monitoring protocol are to: Determine status of upstream watershed characteristics (basin morphology) and trends in land cover that may affect stream habitat, Determine the status of and trends in benthic and near-channel habitat in selected wadeable stream reaches (e.g., bed sediment, geomorphic channel units, and large woody debris), Determine the status of and trends in cross-sectional morphology, longitudinal gradient, and sinuosity of selected wadeable stream reaches. Between June 11 and 14, 2018, data were collected at Congaree National Park to characterize the in-stream and near-channel habitat within stream reaches on Cedar Creek (CONG001, CONG002, and CONG003) and McKenzie Creek (CONG004). These data, along with the analysis of remotely sensed geographic information system (GIS) data, are presented in this report to describe and compare the watershed-, reach-, and transect-scale characteristics of these four stream reaches to each other and to selected similar-sized stream reaches at Ocmulgee Mounds National Historical Park, Kennesaw Mountain National Battlefield Park, and Chattahoochee National Recreation Area. Surveyed stream reaches at Congaree NP were compared to those previously surveyed in other parks in order to provide regional context and aid in interpretation of results. edar Creek’s watershed (CONG001, CONG002, and CONG003) drains nearly 200 square kilometers (77.22 square miles [mi2]) of the Congaree River Valley Terrace complex and upper Coastal Plain to the north of the park (Shelley 2007a, 2007b). Cedar Creek’s watershed has low slope and is covered mainly by forests and grasslands. Cedar Creek is designated an “Outstanding Resource Water” by the state of South Carolina (S.C. Code Regs. 61–68 [2014] and S.C. Code Regs. 61–69 [2012]) from the boundary of the park downstream to Wise Lake. Cedar Creek ‘upstream’ (CONG001) is located just downstream (south) of the park’s Bannister Bridge canoe landing, which is located off Old Bluff Road and south of the confluence with Meyers Creek. Cedar Creek ‘middle’ and Cedar Creek ‘downstream’ (CONG002 and CONG003, respectively) are located downstream of Cedar Creek ‘upstream’ where Cedar Creek flows into the relatively flat backswamp of the Congaree River flood plain. Based on the geomorphic and land cover characteristics of the watershed, monitored reaches on Cedar Creek are likely to flood often and drain slowly. Flooding is more likely at Cedar Creek ‘middle’ and Cedar Creek ‘downstream’ than at Cedar Creek ‘upstream.’ This is due to the higher (relative to CONG001) connectivity between the channels of the lower reaches and their out-of-channel areas. Based on bed sediment characteristics, the heterogeneity of geomorphic channel units (GCUs) within each reach, and the abundance of large woody debris (LWD), in-stream habitat within each of the surveyed reaches on Cedar Creek (CONG001–003) was classified as ‘fair to good.’ Although, there is extensive evidence of animal activity...

APA, Harvard, Vancouver, ISO, and other styles

7

Eberhard, W. L., W. A. Brewer, and J. M. Intrieri. Additional development of remote sensing techniques for observing morphology, microphysics, and radiative properties of clouds and tests using a new, robust CO{sub 2} lidar. Final report. Office of Scientific and Technical Information (OSTI), September 1998. http://dx.doi.org/10.2172/666237.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Melby, Jeffrey, Thomas Massey, Fatima Diop, Himangshu Das, Norberto Nadal-Caraballo, Victor Gonzalez, Mary Bryant, et al. Coastal Texas Protection and Restoration Feasibility Study : Coastal Texas flood risk assessment : hydrodynamic response and beach morphology. Engineer Research and Development Center (U.S.), July 2021. http://dx.doi.org/10.21079/11681/41051.

Full text

Abstract:

The US Army Corps of Engineers, Galveston District, is executing the Coastal Texas Protection and Restoration Feasibility Study coastal storm risk management (CSRM) project for the region. The project is currently in the feasibility phase. The primary goal is to develop CSRM measures that maximize national net economic development benefits. This report documents the coastal storm water level and wave hazard, including sea level rise, for a variety of flood risk management alternatives. Four beach restoration alternatives for Galveston Island and Bolivar peninsula were evaluated. Suites of synthetic tropical and historical non-tropical storms were developed and modeled. The CSTORM coupled surge-and-wave modeling system was used to accurately characterize storm circulation, water level, and wave hazards using new model meshes developed from high-resolution land and sub-aqueous surveys for with- and without-project scenarios. Beach morphology stochastic response was modeled with a Monte Carlo life-cycle simulation approach using the CSHORE morphological evolution numerical model embedded in the StormSim stochastic modeling system. Morphological and hydrodynamic response were primarily characterized with probability distributions of the number of rehabilitations and overflow.

APA, Harvard, Vancouver, ISO, and other styles

9

Eberhard, W. L., J. M. Intrieri, and W. A. Brewer. Additional development of remote sensing techniques for observing morphology, microphysics, and radiative properties of clouds and tests using a new, robust CO{sub 2} lidar. Annual progress report, August 15, 1994--August 30, 1995. Office of Scientific and Technical Information (OSTI), April 1996. http://dx.doi.org/10.2172/216277.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Thomas, Douglas, and Mellon Michael. Sublimation of terrestrial permafrost and the implications for ice-loss processes on Mars. Engineer Research and Development Center (U.S.), July 2021. http://dx.doi.org/10.21079/11681/41244.

Full text

Abstract:

Sublimation of ice is rate-controlled by vapor transport away from its outer surface and may have generated landforms on Mars. In ice-cemented ground (permafrost), the lag of soil particles remaining after ice loss decreases subsequent sublimation. Varying soil-ice ratios lead to differential lag development. Here we report 52 years of sublimation measurements from a permafrost tunnel near Fairbanks, Alaska, and constrain models of sublimation, diffusion through porous soil, and lag formation. We derive the first long-term in situ effective diffusion coefficient of ice-free loess, a Mars analog soil, of 9.05 × 10⁻⁶ m² s⁻¹, ~5× larger than past theoretical studies. Exposed ice-wedge sublimation proceeds ~4× faster than predicted from analogy to heat loss by buoyant convection, a theory frequently employed in Mars studies. Our results can be used to map near-surface ice-content differences, identify surface processes controlling landform formation and morphology, and identify target landing sites for human exploration of Mars.

APA, Harvard, Vancouver, ISO, and other styles

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!