Relevant bibliographies by topics / Crests

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

Academic literature on the topic 'Crests'

Author: Grafiati
Published: 4 June 2021
Last updated: 29 July 2024

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Journal articles on the topic "Crests"

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Li, Yan-Hom, and Kuo-Lung Huang. "Effect of Rosensweig instability in a ferrofluid layer on reflection loss of a high-frequency electromagnetic wave." AIP Advances 12, no. 4 (2022): 045221. http://dx.doi.org/10.1063/5.0086107.

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A ferrofluid layer separates into numerous subscale crests, which is referred to as Rosensweig instability, whose shape and size depend on the field condition and the composition of the ferrofluid. A ferrofluid consisting of nanoscale magnetite particles is also used as an electromagnetic (EM) wave absorption and reflection material. For this study, oil-based and mixture ferrofluid layers that split into various shapes of crests in the presence of an external magnetic field are used to form a protruding structure to reflect and scatter the EM wave and decrease EM radiation energy. For an identical field strength, a mixture ferrofluid layer splits into more crests than an oil-based ferrofluid. A mixture crest shows a less uniform size and shape than the oil-based one. A high-power green laser light is used as a visual EM wave emitting to a crest, which has varying tip angles, and to demonstrate the reflection and scattering. The reflection loss increases as the field strength is increased to create a crest of a smaller tip angle. The reflection loss of an EM wave is significantly affected by the transmitting position on a crest and the shape of a crest. Inter-reflection arises if an EM wave is repeatedly reflected on the surfaces of crests, which contributes to a significant reflection loss. An EM wave incident at an angle of 45° on a crest resulting in a larger area of the inter-reflection zone without specular reflection in a trough gives the most significant reflection loss.
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Reese, Andrew J., and Stephen T. Maynord. "Design of Spillway Crests." Journal of Hydraulic Engineering 113, no. 4 (1987): 476–90. http://dx.doi.org/10.1061/(asce)0733-9429(1987)113:4(476).

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Boersma, Alexandra T., Matthew R. McCurry, and Nicholas D. Pyenson. "A new fossil dolphin Dilophodelphis fordycei provides insight into the evolution of supraorbital crests in Platanistoidea (Mammalia, Cetacea)." Royal Society Open Science 4, no. 5 (2017): 170022. http://dx.doi.org/10.1098/rsos.170022.

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Many odontocete groups have developed enlarged facial crests, although these crests differ in topography, composition and function. The most elaborate crests occur in the South Asian river dolphin ( Platanista gangetica ), in which they rise dorsally as delicate, pneumatized wings anterior of the facial bones. Their position wrapping around the melon suggests their involvement in sound propagation for echolocation. To better understand the origin of crests in this lineage, we examined facial crests among fossil and living Platanistoidea, including a new taxon, Dilophodelphis fordycei , nov. gen. and sp., described herein, from the Early Miocene Astoria Formation of Oregon, USA. We measured the physical extent and thickness of platanistoid crests, categorized their relative position and used computed tomography scans to examine their internal morphology and relative bone density. Integrating these traits in a phylogenetic context, we determined that the onset of crest elaboration or enlargement and the evolution of crest pneumatization among the platanistoids were separate events, with crest enlargement beginning in the Oligocene. However, we find no evidence for pneumatization until possibly the Early Miocene, although certainly by the Middle Miocene. Such an evolutionary context, including data from the fossil record, should inform modelling efforts that seek to understand the diversity of sound generation morphology in Odontoceti.
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Faivre, Sanja. "Analyses of the Velebit Mountain Ridge Crests." Hrvatski geografski glasnik/Croatian Geographical Bulletin 69, no. 02 (2008): 21–39. http://dx.doi.org/10.21861/hgg.2007.69.02.02.

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Krall, J., J. D. Huba, G. Joyce, and T. Yokoyama. "Density enhancements associated with equatorial spread <I>F</I>." Annales Geophysicae 28, no. 2 (2010): 327–37. http://dx.doi.org/10.5194/angeo-28-327-2010.

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Abstract. Forces governing the three-dimensional structure of equatorial spread-F (ESF) plumes are examined using the NRL SAMI3/ESF three-dimensional simulation code. As is the case with the equatorial ionization anomaly (IA), density crests within the plume occur where gravitational and diffusive forces are in balance. Large E×B drifts within the ESF plume place these crests on field lines with apex heights higher than those of the background IA crests. Large poleward field-aligned ion velocities within the plume result in large ion-neutral diffusive forces that support these ionization crests at altitudes higher than background IA crest altitudes. We show examples in which density enhancements associated with ESF, also called "plasma blobs," can occur within an ESF plume on density-crest field lines, at or above the density crests. Simulated ESF density enhancements reproduce all key features of those that have been observed in situ.
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Amaechi, P. O., E. O. Oyeyemi, and A. O. Akala. "Variability of the African equatorial ionization anomaly (EIA) crests during the year 2013." Canadian Journal of Physics 97, no. 2 (2019): 155–65. http://dx.doi.org/10.1139/cjp-2017-0985.

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This paper discusses the variability of the position and magnitude of the crests of African Equatorial Ionization Anomaly during noon and post sunset periods. Total electron content data covered the year 2013, and were obtained from a chain of global positioning system receivers in both hemispheres around 37°E longitude. Local magnetometer data were used to infer the direction and magnitude of the E × B drift, while the solar extreme ultraviolet proxy index was used as a measure of solar activity. It was found that the time of formation of both crests varied from 1400 to 1700 local time. Additionally, the position of the crests was found to be asymmetric with respect to the magnetic equator. During the noon period, the position of the northern and southern crests varied from 4.91° to 7.36° and −9.17° to −12.62°, respectively. During the post-sunset period, it varied from 8° to 11.7° and −9° to −16°, respectively. Seasonally, with reference to the magnetic equator, both crests moved poleward during equinoxes and collapsed towards the equator during winter and summer. Equinoxes recorded the greatest crest magnitude followed by winter then summer over both hemispheres during the noon period. However, this trend persisted over the northern crest only during the post-sunset period. Overall, during the noon period, we recorded correlation coefficients of 0.67 and 0.68 between crest magnitudes and ΔH, a proxy for equatorial electrojet current, and 0.88 and 0.81 between crest positions and ΔH, for the northern and southern crests, respectively. During the Halloween day storm of 30 October 2013, a westward electric field inhibited the development of the post-sunset crests.
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ASHTON, E. H., and S. ZUCKERMAN. "CRANIAL CRESTS IN THE ANTHROPOIDEA." Proceedings of the Zoological Society of London 126, no. 4 (2009): 581–634. http://dx.doi.org/10.1111/j.1096-3642.1956.tb00454.x.

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Akylas, T. R. "Envelope solitons with stationary crests." Physics of Fluids A: Fluid Dynamics 5, no. 4 (1993): 789–91. http://dx.doi.org/10.1063/1.858626.

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Al-Humoud, J., M. A. Tayfun, and H. Askar. "Distribution of nonlinear wave crests." Ocean Engineering 29, no. 15 (2002): 1929–43. http://dx.doi.org/10.1016/s0029-8018(01)00101-9.

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Hone, David W. E. "Evolution: Convergence in Dinosaur Crests." Current Biology 25, no. 12 (2015): R494—R496. http://dx.doi.org/10.1016/j.cub.2015.04.051.

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Dissertations / Theses on the topic "Crests"

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Haley, Joseph. "Fluid forcing in the crests of large ocean waves." Thesis, Imperial College London, 2015. http://hdl.handle.net/10044/1/60082.

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A sequence of new experimental investigations is presented that addresses the modelling of the wave loads within the crests of limiting and breaking waves. This study identifies important sources of uncertainty within wave loading models that are applied to the steepest wave conditions. By examining the origins of this uncertainty, existing loading models are assessed and improvements proposed. In particular, the local wave impact loads arising on individual horizontal and vertical members in the crest region are evaluated. In terms of wave modelling, the key factors are the wave shape and the associated water particle kinematics. In addressing these points, the present results have shown that only nonlinear modelling methods are capable of accurately describing a limiting wave profile. Indeed, the departures from established analytical solutions, commonly used in design, highlight the importance of high-order effects in steep waves approaching their breaking limit. In predicting the wave impact forces on a body, the gradient or slope of the water surface is of fundamental importance. Detailed experimental analysis of the magnitude and direction of the impact force on a horizontal cylinder has highlighted an important source of uncertainty. This relates to the nonparallel nature of the normal to the water surface and the direction of the resultant water particle kinematics. The present work has shown that in the crests of large, steep waves, this angular difference creates an important variability in the force predictions. However, having taken account of this effect, the magnitude of the impact force can be reliably predicted using a slamming coefficient of Cs = 5.19. This is shown to be appropriate to a wide range of oblique wave-structure impacts. When considering the wave forces on a vertical column the present study has shown that it is crucial to consider both the type of wave breaking and also the additional complexity of free surface deformation during the loading event. Overall, measurements of wave run-up are shown to be less dependent on the occurrence of wave impact forces than previously hypothesised. However, the extent of the column area subject to large impact loads is shown to be critically dependent upon the type of wave breaking.
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Shomer, J. Scott, and J. Scott Shomer. "Lowering Rates of Moraine Crests From Accumulation of Cosmogenic 36C1 and 10BE: Eastern Sierra Nevada, California." Thesis, The University of Arizona, 1999. http://hdl.handle.net/10150/626784.

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The accumulation of in-situ 36Cl and 10Be in soils from the crests of 11 moraines near Bishop Creek, California was used to determine time-integrated erosion rates and exposure ages. Previous studies have provided the exposure history and estimates of erosion for the Bishop Creek moraine sequence allowing for the validation of the 36CV10Be model used in this study. With the two isotopes, simultaneous calculations of exposure ages and erosion rates of the soils have been made. Mean erosion rates of the soils calculated using 10Be correlate well with those calculated using 36Cl, and range from 19 to 62 mm/ky. Erosion rates from 10Be have larger uncertainties than those calculated using 36Cl and typically are slightly higher. Meteoric 10Be used in combination with the two in-situ isotopes yielded an average 10Be deposition rate (q) of 0.46 ± 0.16 x 106 atoms cm-2 yr-1, in agreement with previous estimates.
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Santoro, Diego Monegatto. "Propriedades físico-químicas de emulsões obtidas a partir dos emulsificantes monoestearato de glicerila e cetil fosfato de potássio." Universidade de São Paulo, 2005. http://www.teses.usp.br/teses/disponiveis/9/9139/tde-01102007-084445/.

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Introdução: A estabilidade fisica de sistemas emulsionados pode ser avaliada através de avaliação da distribuição de gotículas, propriedades reológicas, termoanálise, microscopia, entre outras técnicas. Objetivo: Avaliar a estabilidade fisica de emulsões obtidas com diferentes concentrações de emulsificantes aniônicos (A - cetil fosfato de potássio 3, 5 e 7%) e não-iônicos (N monoestearato de glicerila, 3, 5 e 7%), e a influência da transposição de escala de produção. Metodologia: Avaliação da distribuição das gotículas formadas através de difração de raio laser, análise reológica do tipo fluxo, microscopia e termogravimetria. Resultados e Conclusão: Os valores de 90% das gotículas foram menores que 92,66 &#181;m; 50,28&#181;m e 38,80&#181;m, respectivamente para 3, 5 e 7% de emulsificante N. No sistema A, 90% das gotículas foram menores que 3,85&#181;m; 4,89&#181;m e 63,57&#181;m, para 3, 5 e 7%, respectivamente. O aumento de escala de produção influenciou ambos os sistemas, com aumento de viscosidade: Sistema A: de 6,614 Pa.s para 81,55 Pa.s e Sistema N - de 3,366 Pa.s para 7,153 Pa.s no sistema N. Na análise TG, somente água livre pôde ser detectada no sistema N e, no sistema A, água interlamelar e livre puderam ser detectadas (inicial e em estabilidade)<br>lntroduction: The physical stability of emulsions can be evaluated through droplets distribution evaluation, rheological properties, thermal analysis, microscopy and others. Objective: Evaluate the physical stability of emulsions containg different concentrations of anionic (A - potassium cetyl phosphate 3, 5 e 7%) and non-ionic emulsifiers (N - glyceril monostearate, 3, 5 e 7%), and the influence ofthe scale-up processo Methodology: Evaluate the droplets distribution with laser diffraction, rheology analysis, microscopy and thermogravimetry (TG). Results and Conc1usion: The values of 90% of the droplets were below 92.66 &#181;m, 50.28&#181;m and 38.80&#181;m, respectively for 3, 5 and 7% ofN emulsifier. For system A, 90% ofthe droplets were below 3.85&#181;m, 4.89&#181;m and 63.57&#181;m, for 3, 5 and 7%. The scale-up process influenced both systems, with an increase in the viscosity on system A from 6.614 Pa.s to 81.55 Pa.s and from 3.366 Pa.s to 7.153 Pa.s for system N. ln the TG analysis, only bulk water could be detected in system N and, in the system A, both interlamellar and bulk water were detected (initial and stability).
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Rios, Anne C. "Morphogenèse précoce des muscles squelettiques chez l'embryon de poulet." Thesis, Aix-Marseille 2, 2011. http://www.theses.fr/2011AIX22061.

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Comment les signalisations dynamiques et les mouvements morphogénétiques régionalisent et permettent la formation de tissus complexes durant l'embryogenèse est très peu compris. J’ai caractérise au cours de ma thèse, les évènements signalisants qui sont mis en place au cours de la myogenèse précoce chez l'embryon de poulet. J'ai montre que les progénitures musculaires présents dans les somites requièrent l'activation dynamique des voies de signalisation Wnt et Notch. L’activation transitoire de la signalisation Notch est requise pour adopter un destin myogénique. Le ligand de Notch Dll1 est exprime de manière mosaïque dans les cellules migrantes des crêtes neurales qui passent près du somite. Gain et perte de fonction de Dll1 dans les crêtes neurales modifient la signalisation Notch dans les somites, résultant en un délai ou une prématuré myogenèse. Nos résultats indiquent que les crêtes neural régulent la formation précoce du muscle par un mécanisme unique mené par la migration des cellules des crêtes neurales exprimant Dll1 qui déclenche l'activation transitoire de la signalisation Notch dans certains progénitures musculaires sélectionnes. Cette dynamique signalisation garantie une différentiation progressive du pool de progénitures musculaires<br>How dynamic signalling and extensive tissue rearrangements interplay to generate complex patterns and shapes during embryogenesis is poorly understood. During my PhD, I have characterized the signalling events taking place during early morphogenesis of chick skeletal muscles. I observed that muscle progenitors present in somites require dynamic activation of Wnt and Notch signalling. I showed that a transient activation of NOTCH signalling is required to undergo terminal differentiation. The NOTCH ligand Delta1 is expressed in a mosaic pattern in neural crest cells that migrate past the somites. Gain and loss of Delta1 function in neural crest modifies NOTCH signalling in somites, which results in delayed or premature myogenesis. These results suggest that the neural crest regulates early muscle formation by a unique mechanism that relies on the migration of Delta1-expressing neural crest cells to trigger the transient activation of NOTCH signalling in selected muscle progenitors. This dynamic signalling guarantees a balanced and progressive differentiation of the muscle progenitor pool
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Nart, Molina José. "Estudio Prospectivo Comparativo de la Eficacia en el Aumento Horizontal de Crestas Alveolares Atróficas con Regeneración Ósea Guiada y Expansores Motorizados de Cresta." Doctoral thesis, Universitat Internacional de Catalunya, 2010. http://hdl.handle.net/10803/9340.

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The purpose of this prospective, randomized, controlled clinical investigation is to evaluate the performance of the Motorized Ridge Expanders (MRE), and to compare its results with the ones achieved utilizing lateral ridge augmentation (LRA). Eight subjects with bilateral ridge deformities were selected. One technique was used on the right site and the other on the left site. Implants were placed six months after the bone augmentation procedures. All the measurements were recorded at 2 and 5 mm from the most coronal part of the crest. The augmentation achieved with both techniques was statistically significant, 1.2 mm in the LRA, 1.5 mm in MRE at 2 mm from the crest; 1.5 mm and 1.6 mm respectively at 5mm from the crest. The differences between the two techniques were statistically insignificant. The amount of expansion achieved in the MRE site appears to be negatively correlated (P-Value <0.05) with the thickness of the cancellous bone, and it is not affected by the thickness of the cortical plate. The MRE technique appears to be as effective as the LRA technique in augmenting the thickness of atrophic ridges. The defect treated with the MRE showed less bone width contraction during the first 6 months of healing. Histologically, the regenerated bone was vital, trabecular in nature and in direct contact with bone graft particles.<br>El propósito de esta investigación clínica prospectiva y aleatoria es comparar el aumento horizontal de la cresta alveolar obtenido con el uso de los expansores motorizados de cresta (EMC) y con regeneración ósea guiada (ROG). Fueron selecccionados ocho pacientes con deformidades horizontales del reborde alveolar bilaterales que iban a recibir implantes dentales. Una técnica de regeneración se utilizó en el lado derecho y la otra en el lado izquierdo, para un total de 23 muestras, 13 en el lado experimental (EMC) y 10 en el lado control (ROG). Los implantes fueron colocados seis meses después de los procedimientos de aumento óseo, y se obtuvo una muestra de hueso para estudio histológico. Todas las mediciones clínicas se registraron a los 2 y 5 mm de la parte más coronal de la cresta. El aumento logrado con ambas técnicas fue estadísticamente significativo, de 1,2 mm en la ROG y 1,5 mm con los EMC a 2 mm de la cresta; y 1,5 mm y 1,6 mm, respectivamente, a 5mm de la cresta. Las diferencias entre las dos técnicas no fueron estadísticamente significativas. La cantidad de expansión lograda en el sitio de los EMC parece tener una correlación negativa (p <0,05) con el grosor del hueso esponjoso, y no se ve afectada por el grosor de la cortical. Histológicamente se observó osteoconductividad del injerto óseo y más partículas residuales del mismo en el lado experimental. La técnica de los EMC parece ser tan eficaz como la técnica de ROG en el aumento de la anchura de las crestas atróficas. Los defectos tratados con los EMC mostraron una menor contracción del injerto óseo durante los 6 meses de cicatrización.<br>El propòsit d'aquesta recerca clínica prospectiva i aleatòria és comparar l'augment horitzontal de la cresta alveolar obtingut amb l'ús dels expansors motoritzats de cresta (EMC) i amb regeneració òssia<br/>guiada (ROG). Es van selecccionar vuit pacients amb deformitats horitzontals bilaterals de la cresta alveolar on es col.locaren implants dentals. Una tècnica de regeneració es va emprar en el costat dret i l'altra a la banda esquerra, per a un total de 23 mostres, 13 al costat experimental (EMC) i 10 en el costat control (ROG). Els implants van ser col.locats sis mesos després dels procediments d'augment ossi, i es va obtenir una mostra d'os per estudi histològic.Totes les mesures clíniques es van registrar als 2 i 5 mm de la part més coronal de la cresta. L'augment aconseguit amb ambdues tècniques va ser estadísticament significatiu, de 1,2 mm a la ROG i 1,5 mm amb els EMC a 2 mm de la carena, i 1,5 mm i 1,6 mm, respectivament, a 5mm de la cresta. Les diferències entre les dues<br/>tècniques no van ser estadísticament significatives. La quantitat d'expansió aconseguida en el lloc dels EMC sembla tenir una correlació negativa (p<0,05) amb el gruix de l'os esponjós, i no es veu afectada per el gruix de la cortical. Histològicament es observar osteoconductividad l'empelt ossi i més partícules residuals d'aquest en el costat experimental. La tècnica dels EMC sembla ser tan eficaç com la tècnica de ROG en l'augment de l'amplada de les crestes atròfiques. Els defectes tractats amb els EMC mostrar una menor contracció de l'empelt ossi durant els 6 mesos de cicatrització.
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Thomas, Cathy Ann. "Domenico Cresti, Il Passignano (1559-1638), and the Roman Rinascità: Studies in his religious paintings for Rome between 1589 and 1616." Case Western Reserve University School of Graduate Studies / OhioLINK, 1995. http://rave.ohiolink.edu/etdc/view?acc_num=case1058283169.

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Crest, Marion Moszkowicz Pierre Blanc Denise. "Etude multi-échelle de percolations instationnaires à travers un résidu minéral réactif et modélisations hydrodynamiques associées." Villeurbanne : Doc'INSA, 2008. http://docinsa.insa-lyon.fr/these/pont.php?id=crest.

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Padilha, Taciana Martins. "Política Nacional de Fiscalização do Conjunto CFESS/CRESS: estudo da experiência do CRESS-Alagoas." Pontifícia Universidade Católica de São Paulo, 2013. https://tede2.pucsp.br/handle/handle/17636.

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Made available in DSpace on 2016-04-29T14:16:22Z (GMT). No. of bitstreams: 1 Taciana Martins Padilha.pdf: 2479421 bytes, checksum: e805d7a945e4425e116014f52b466d07 (MD5) Previous issue date: 2013-06-17<br>The choice of approach to the subject was due to the degree of importance it plays in relation to studies on the National Audit of both the Federal Council of Social Service as the Regional Councils of Social Service, which were based on the perspective of its historical significance, and social dimensions of affirmative principles, regulations and policies and disciplinary and pedagogical. Its range aimed at the formation of a critical Project Ethical-Political Social Worker in their daily work, since, being well articulated, these elements express the conception of this work. In order to arrive at such an understanding, we present a brief history articulated with the Brazilian Social Services, since its genesis (decade 30) until the 2000s. This social and historical hike was necessary for people to really understand the construction and the need of the National Audit of all CFESS / CRESS under the act professional Social Worker. Thus, in the mid-90s, there is a professional able to articulate both theoretical and methodological, ethical, political and technical-operational. And it is this perspective of affirmation Project Ethical-Political Social Worker who sees the need to incorporate a conscious and critical attitude in their daily work. The National Audit Committees materializes in Guidance and Control (COFI), installed in the Regional Councils of Social Service (CRESS), leading to advances in the defense and enhancement of the profession. Through this comes the realization that allows a pop theoretical maturity, ethics, politics and art in the practice of Social Work, aimed at consolidating the Project Ethical-Political spaces socio-occupational, whose challenge to position themselves critically expressions of social issues that reiterates social inequality, to reflect the conditions ethical-political, technical, operational and theoretical-methodological. This time, our intention was to stimulate a critical discussion and reflective of the theory / practice in social and occupational spaces, bringing the pop in an attempt to (re) consider the role that policy in everyday social worker. From the methodological point of view, work desk research analyzing the reports of the deliberations of the XXVI National Meeting set CFESS / CRESS, probation and supervision of activities of the Regional Council of Pernambuco, along with literature searches using several authors such as Netto, Iamamoto, Martinelli, Bridges, and Lyra Ozanira. On the other hand, also appealed to the interview instrument oral and / or written, with the development of script open questions in order to reap the answers. After hearing them, we move to the transcript of the responses, which were read, reread and, finally, compared with calls that the National Authority. The analysis of the material sought to follow in the footsteps of qualitative research: description, thematic analysis and interpretation, noticing a gap than advocates pop with the theory / practice in the professional Social Worker<br>A opção pela abordagem do tema se deu em função do grau de importância que ele exerce no tocante aos estudos sobre a Política Nacional de Fiscalização, tanto do Conselho Federal de Serviço Social quanto dos Conselhos Regionais de Serviço Social, os quais se basearam na perspectiva do seu significado histórico-social e nas dimensões afirmativa de princípios, normativas e disciplinadoras e políticas-pedagógicas. Seu alcance visou à formação de uma reflexão crítica do Projeto Ético-Político do Assistente Social em seu cotidiano profissional, uma vez que, estando bem articulados, estes elementos expressam a concepção deste profissional. Para que se chegasse a tal entendimento, apresentamos um breve histórico brasileiro articulado com o Serviço Social, desde a sua gênese (década 30) até chegar aos anos 2000. Este caminhar social e histórico se fez necessário para que se pudesse compreender a construção e a necessidade da Política Nacional de Fiscalização do conjunto CFESS/CRESS no âmbito do agir profissional do Assistente Social. Desse modo, em meados dos anos 90, surge um profissional capaz de articular as dimensões teórica-metodológica, ética-política e técnica-operativa. E é nessa perspectiva de afirmação do Projeto Ético-Político do Assistente Social que se vislumbra a necessidade da incorporação de uma atitude consciente e crítica em seu cotidiano de trabalho. A Política Nacional de Fiscalização materializa-se nas Comissões de Orientação e Fiscalização (COFI), instaladas nos Conselhos Regionais de Serviço Social (CRESS), levando ao avanço na defesa e valorização da profissão. Por meio disso, nasce a percepção de que a PNF permite uma maturidade teórica, ética, política e técnica no exercício profissional do Assistente Social, visando à consolidação do Projeto Ético-Político nos espaços sócio-ocupacionais, que tem como desafio se posicionar criticamente às expressões da questão social que reitera a desigualdade social, de modo a refletir às condições ética-política, técnica-operativa e teórica-metodológica. Desta feita, nossa intenção foi estimular uma discussão crítica-reflexiva da relação teoria/prática nos espaços sócio-ocupacionais, trazendo a PNF na tentativa de (re) pensar o papel dessa política no cotidiano do Assistente Social. Do ponto de vista metodológico, trabalhamos a pesquisa documental analisando relatórios de deliberações do XXVI Encontro Nacional do conjunto CFESS/CRESS, de supervisão de estágio e de atividades do Conselho Regional de Pernambuco, juntamente com pesquisas bibliográficas utilizando vários autores, tais como, Netto, Iamamoto, Martinelli, Pontes, Lyra e Ozanira. Por outro lado, recorremos também ao instrumento de entrevista oral e/ou escrita, com a elaboração de roteiro de perguntas abertas com a finalidade de colher as respostas. Após ouvi-los, passamos à transcrição das respostas, que foram lidas, relidas e, por fim, comparados com o que preconiza a Política Nacional de Fiscalização. A análise do material buscou seguir os passos da pesquisa qualitativa: descrição, análise temática e interpretação, percebendo um distanciamento do que preconiza a PNF com a relação teoria/prática no fazer profissional do Assistente Social
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Федорусь, Юрій Володимирович, Юрий Владимирович Федорусь та Y. V. Fedorus. "Розробка та обґрунтування параметрів комбінованого плющильно-обчісувального апарата для відділення насіння льону". Thesis, Тернопільський національний технічний університет ім. Івана Пулюя, 2013. http://elartu.tntu.edu.ua/handle/123456789/2091.

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Робота виконана в Луцькому національному технічному університеті Міністерства освіти і науки, молоді та спорту України. Захист відбувся « 21 » березня 2013 року о 1200 годині в ауд. 79 на засіданні спеціалізованої вченої ради Д58.052.02 у Тернопільському національному технічному університеті ім. І. Пулюя, 46001, м. Тернопіль, вул. Руська, 56. З дисертацією можна ознайомитися у бібліотеці Тернопільського національного технічного університету ім. І. Пулюя за адресою: 46001, м. Тернопіль, вул. Руська, 56.<br>Дисертацію присвячено вирішенню важливої науково-технічної задачі підвищення ефективності відділення насіння від стебел льону завдяки використанню комбінованого робочого процесу, що здійснюється на основі розробки нової конструкції і обґрунтування параметрів плющильно-обчісувального апарата. Для вирішення поставлених завдань проаналізовано стан механізації та способи відділення коробочок та насіння від стебел льону, а також конструкції існуючих апаратів для цього і з’ясовані їх недоліки. Обґрунтовано структуру операцій процесу відділення насіння від стебел льону, та запропоновано нову конструкцію плющильно-обчісувального апарата, а також обґрунтовано основні його параметри. Обґрунтовані закономірності процесу плющення коробочок і виділення вільного насіння та відриву не розплющених коробочок від стебел. Проведено польові випробовування і розраховано економічну ефективність використання льонозбирального комбайна з плющильно-обчісувальним апаратом запропонованого зразка.<br>Диссертация посвящена вопросам повышения эффективности отделения семян и коробочок от стеблей льна путём использования комбинированного рабочего процесса, что реализуется на основе разработки конструкции и обос¬нования параметров плющильно-очесывающего аппарата. Анализ способов и тех¬нических средств для уборки льна показал, что существующие конструкции отделяющих аппаратов не обеспечивают необходимое качество отделения свобод¬ных семян от стеблей льна, имеет место повреждение семян, большой отход стеблей в путанину. Для решения поставленных задач выбрана оптимальная последовательность операций комбинированного процесса для отделения семян и коробочек от стеблей льна и предложена новая конструкция плющильно-очесывающего аппарата. Разработаны теоретические основы функционирования плющильного механизма и обоснованы условия его работоспособности. Изложены программа и методики проведения экспериментальных иссле¬дований, а также описание оборудования, приборов, экспериментальной установки. Для проведения экспериментов использовалось стандартизированное оборудо¬вание, а также разработанное и изготовленное самостоятельно, которое наиболее соответствовало условиям исследуемых процессов. Экспериментальным путем исследовалась полнота отделения семян от стеб¬лей льна, качественные и количественные показатели ленты льна после плющения и очёса, а также устанавливались факторы, влияющие на повреждения семян льна. Разработан и изготовлен экспериментальный образец плющильно-очесы¬вающего аппарата. Результаты полевых испытаний показали целесообразность использования разработанного аппарата. Определён годовой эффект от использования льнокомбайна с предложенным плющильно-очесывающим аппаратом, который составляет 81 тис. гривен на машину.<br>This thesis is dedicated to the solution of significant scientific and technical problem of improving efficiency seeds separation from flax stems by using combined operating process, which is based on the new design development and substantiation of flattening and combing parameters of machine. The structure of the seeds separation process from stalks of flax was substantiated and new construction of flattening and combing machine was proposed and basic its parameters were determined. The process regularities of flattening boxes and extraction of available seeds with breaking of non-flattened boxes from stems had been done. The field tests and calculation of economic efficiency using of flax harvester with new flattening and combing machine were made.
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White, David Ian. "Trans-Tasman company tax horizons : why mutual recognition of company tax credits would create an inward looking investment area in Australasia." Thesis, The University of Sydney, 1997. https://hdl.handle.net/2123/27607.

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At present, the New Zealand and Australian imputation systems for company tax each create a national preference for equity investment. It is only M company tax paid by a resident company that reduces a resident shareholder’s income tax liability on a dividend. Trans-Tasman business has proposed that each country should extend its imputation system to recognise the company tax credits of the other Tasman country. To some degree, this proposal would have the effect of turning these two national investment preferences into one Australasian investment preference. The level of this preference would depend upon the extent to which New Zealand and Australian resident companies repatriate profits from anywhere offshore by dividend and the extent to which these profits are then distributed to individual resident shareholders as dividends. One of the characteristics of recent successful trans-Tasman economic co-operation has been that it has been ‘outward looking.’ For instance, it has sometimes been part of a broad strategy that included contemporaneous or subsequent liberalising actions at the domestic, bilateral, regional or multilateral levels. This dissertation asks whether the international economic policy environment would allow New Zealand and Australia to develop a stepping stone strategy, in relation to the business proposal for mutual recognition of imputation credits, that began with a bilateral trans-Tasman arrangement and then was extended at the regional or multilateral levels. After examining the two countries’ multilateral and bilateral treaty obligations, the dissertation concludes that there are no legal impediments to establishing this trans-Tasman investment preference. It seems highly likely, however, that the two countries would soon come under pressure from major capital exporters, especially the USA, to extend some benefit of this liberalisation to them, often on a non-reciprocal basis. To determine when and how to extend reform benefits to third countries, the two Tasman countries would need to present the reform as a reciprocal CER free-trade agreement. Once set up as a flee-trade area measure, however, this investment preference would have little chance of being reduced through subsequent actions either at the multilateral or regional levels. At both these levels, there are no existing or likely arrangements on crossborder imputation that might supersede the trans-Tasman scheme. Secondly, in the Asia- Pacific region there are no potential partners to whom New Zealand and Australia could realistically expect to extend the scheme in the future. Indeed, the multilateral and regional environments for cross-border innovation on company tax are highly constrained for these two small player-nations in the South-West Pacific. As a consequence, the dissertation concludes that the business proposal for mutual recognition of company tax credits by New Zealand and Australia would create an ‘inward looking’ investment area in Australasia.
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Books on the topic "Crests"

1

McLaren, Mike. The book of crests. Heritage Books, 1990.

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Canetti, Yanitzia. Amazing adaptations!: Crests. Cambridge BrickHouse, 2010.

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Corder, Joan. A dictionary of Suffolk crests: Heraldic crests of Suffolk families. Boydell Press [for] Suffolk Records Society, 1998.

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Pearson, Pearle. Crests of the Haida. WEDGE, Faculty of Education, University of British Columbia, 1985.

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Fairbairn, James. Fairbairn's book of crests of the families of Great Britain and Ireland. 4th ed. Genealogical Publishing Company, 1993.

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Chikano, Shigeru. Nihon kamon sōkan. Kadokawa Shoten, 1993.

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1933, Kawamoto Kiyoshi d., ed. The elements of Japanese design: A handbook of family crests, heraldry & symbolism. Weatherhill, 1990.

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Král von Dobrá Voda, Adalbert. Znaky rodů českých. 2nd ed. Agentura Pankrác, 2006.

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Seijinsha. 日本の家紋. Seigensha, 2004.

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Furusawa, Tsunetoshi. Kamon daichō: Tadashii kamon 5000-shu. Kin'ensha, 1987.

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Book chapters on the topic "Crests"

1

O’Rourke, Joseph, and Costin Vîlcu. "Crests." In Reshaping Convex Polyhedra. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-47511-5_7.

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Irwin, Terry, Julie Terberg, and Echo Swinford. "Inserting logos and crests." In Medical Presentations. CRC Press, 2024. http://dx.doi.org/10.1201/9781003287902-10.

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Allgaier, A. "Morphological Changes at Active Dune Crests." In Ecological Studies. Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-75498-5_14.

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Hattori, N., and S. Sato. "Extraction of Wave Crests from UAV Imagery." In APAC 2019. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-15-0291-0_125.

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Philip, J. R. "Constant-Rainfall Infiltration on Hillslopes and Slope Crests." In Water Flow and Solute Transport in Soils. Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-77947-3_11.

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Hall, Brian K. "Teeth and Hearts: The Odontogenic and Cardiac Neural Crests." In The Neural Crest and Neural Crest Cells in Vertebrate Development and Evolution. Springer US, 2009. http://dx.doi.org/10.1007/978-0-387-09846-3_8.

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Yao, Kenshi. "Light Blue Crests (LBCs) and White Opaque Substance (WOS)." In Zoom Gastroscopy. Springer Japan, 2013. http://dx.doi.org/10.1007/978-4-431-54207-0_10.

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Tullis, B., N. Young, and B. Crookston. "Physical modeling size-scale effects for labyrinth weirs with half-round crests." In Labyrinth and Piano Key Weirs III – PKW 2017. CRC Press, 2017. http://dx.doi.org/10.1201/9781315169064-26.

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Landolsi, Mohamed Yassine, and Lotfi Ben Romdhane. "TD-CRESTS: Top-Down Chunk Retrieval Based on Entity, Section, and Topic Selection." In Research Challenges in Information Science. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-59465-6_3.

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Butler, P. M. "Homologies of Molar Cusps and Crests, and Their Bearing on Assessments of Rodent Phylogeny." In Evolutionary Relationships among Rodents. Springer US, 1985. http://dx.doi.org/10.1007/978-1-4899-0539-0_14.

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Conference papers on the topic "Crests"

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Krüger, Paul, Stefan Wildermann, and Jürgen Teich. "CRESTS." In EuroSys '24: Nineteenth European Conference on Computer Systems. ACM, 2024. http://dx.doi.org/10.1145/3642974.3652286.

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Martin, Bruce, and Oriol Rijken. "A Methodology for Calculating Wave Crest Enhancement in Extreme Seas." In ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/omae2013-11387.

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The deck height of a tension leg platform or semi-submersible depends in large part on the expected crest height. This expected crest height is the result of the sea state, i.e. the incoming wave train, and local enhancement due to the vessels diffraction of the wave train. These local enhancements are usually determined by a combination of numerical computations and model tests. Quite often a crest enhancement factor is defined which takes into consideration these local amplification effects. Extrapolating the enhancement factor from extreme conditions to survival conditions may lead to significantly large crests and result in a very high deck elevation. Many studies, including the CresT JIP address the characteristics of the crests within a given sea state and in the absence of a vessel. This paper addresses the effect of the presence of a vessel on the crest heights, and in particular the high crests which will ultimately determine deck height. The paper is based on experimental measurements of wave elevations underneath and around various tension leg platforms and semi submersibles. The investigated sea states comprise of a series of long crested irregular waves, generated in a model basin, which describe extreme and survival conditions in the Gulf of Mexico. The crest heights underneath the vessel are measured and compared with crests which occur without the presence of the vessel. Numerical predictions of the local amplification are also made, based on 1st order diffraction analysis and the as-measured incident wave train. A narrative is provided on the differences in crest height and observed phenomena.
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Forristall, George Z. "Kinematics in the Crests of Storm Waves." In 20th International Conference on Coastal Engineering. American Society of Civil Engineers, 1987. http://dx.doi.org/10.1061/9780872626003.016.

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Prevosto, Marc, and Geoerge Z. Forristall. "Statistics of Wave Crests From Models vs. Measurements." In ASME 2002 21st International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2002. http://dx.doi.org/10.1115/omae2002-28443.

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The analysis phase of the Wave Crest Sensor Intercomparison Study (WACSIS) focussed on the interpretation of the wave data collected by the project during the winter of 1997–98. Many aspects of wave statistics have been studied, but the main emphasis has been on crest height distributions, and recommendations for crest heights to be used in air gap calculations. In this paper we first describe comparisons of the crest height distributions derived from the sensors (radars, wave staffs, laser) and from simulations based on 3D second order irregular wave models. These comparisons permit us to make conclusions on the quality of these models and to qualify the ability of some sensors to measure the crest heights accurately. In the second part two new parametric models of the crest height distributions are discussed and their superiority to standard parametric models is demonstrated.
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Baxevani, Anastassia, Oskar Hagberg, and Igor Rychlik. "Note on the Distribution of Extreme Wave Crests." In ASME 2005 24th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2005. http://dx.doi.org/10.1115/omae2005-67571.

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The sea elevation at a fixed point is modelled by means of a second order model, which is a smooth algebraic function of a vector valued Gaussian process. Asymptotic methods, presented first in [1], are used to estimate the mean upcrossing intensity μ+ (h). The intensity is then used to determine the density of crest height in a second order sea. Numerical examples illustrate the method. The proposed approximation is used to estimate the design crest height for a specified return period.
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Hagen, Øistein, Thomas B. Johannessen, and Jørn Birknes-Berg. "Airgap and Wave in Deck Impact Statistics." In ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/omae2016-54927.

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As offshore reservoirs are depleted, the seabed may subside. Bottom fixed installations which have previously had sufficient clearance between the deck and the sea surface may be in a situation where wave impact with the deck must be considered at relevant probability levels. Some statistical aspects associated with the calculation of a deck impact load with a prescribed probability of occurrence are the subject of the present paper. The Short Crest JIP addressed the distribution of the crest height in extreme sea states, the properties of the largest crests and the deck impact loading on a closed deck. It was concluded that the largest waves in the sea may be in the process of breaking and thus have properties which deviate significantly from estimates found from weakly nonlinear irregular or regular wave theory. The present paper addresses findings from the Short Crest JIP regarding • long-term analysis of wave heights and crest, including the effect of wave breaking • air gap analysis for jacket, TLP and semisubmersible using 2nd order time domain simulations over the platform area • statistics for horizontal wave-in-deck impacts for short crested sea versus for long crested sea • structural reliability analysis of jackets for some simple limit states that are governed by loads caused by impact of extreme crests
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Buchner, Bas, George Forristall, Kevin Ewans, Marios Christou, and Janou Hennig. "New Insights in Extreme Crest Height Distributions: A Summary of the ‘CresT’ JIP." In ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2011. http://dx.doi.org/10.1115/omae2011-49846.

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The objective of the CresT JIP was ‘to develop models for realistic extreme waves and a design methodology for the loading and response of floating platforms’. Within this objective the central question was: ‘What is the highest (most critical) wave crest that will be encountered by my platform in its lifetime?’ Based on the presented results for long and short-crested numerical, field and basin results in the paper, it can be concluded that the statistics of long-crested waves are different than those of short-crested waves. But also short-crested waves show a trend to reach crest heights above second order. This is in line with visual observations of the physics involved: crests are sharper than predicted by second order, waves are asymmetric (fronts are steeper) and waves are breaking. Although the development of extreme waves within short-crested sea states still needs further investigation (including the counteracting effect of breaking), at the end of the CresT project the following procedure for taking into account extreme waves in platform design is recommended: 1. For the wave height distribution, use the Forristall distribution (Forristall, 1978). 2. For the crest height distribution, use 2nd order distribution as basis. 3. Both the basin and field measurements show crest heights higher than predicted by second order theory for steeper sea states. It is therefore recommended to apply a correction to the second order distribution based on the basin results. 4. Account for the sampling variability at the tail of the distribution (and resulting remaining possibility of higher crests than given by the corrected second order distribution) in the reliability analysis. 5. Consider the fact that the maximum crest height under a complete platform deck can be considerably higher than the maximum crest at a single point.
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Laface, Valentina, Alessandra Romolo, and Elzbieta M. Bitner-Gregersen. "Space-Time Statistics via Trapezoidal Storm Model for Offshore Installations." In ASME 2020 39th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/omae2020-18822.

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Abstract The paper proposes an approach for estimating the long-term statistics of random wave crests occurring over a certain space–time domain. Such a problem is relevant for a number of marine engineering applications, as classical analyses based, exclusively, on time domain approaches underestimates wave crest amplitudes associated with a given return period. The return period of a certain wave crest is derived by combining the Trapezoidal Storm (TS) Model, based on DNV GL storm profile, with the Euleric Characteristic (EC) of an excursion set concept, recently applied to the study of sea wave statistics. By computing the average EC, an explicit solution for the probability distribution of the wave crests during a sea storm can be derived by an approximation of the EC. Return period of linear wave crests is derived in the paper. The proposed solution is applied for the calculation of extreme waves during an ocean storm over a certain area. The results presented can be used as good approximation in design work of offshore installations. An extension of the proposed approach to account for nonlinearities of sea surface will be a subject of future research.
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Santoro, Anita, Felice Arena, and Carlos Guedes Soares. "On the Sequence of Large Waves From Field Data." In ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/omae2018-78725.

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The present work focuses on large wave groups, in particular the succession of three waves, i.e. the largest one and the preceding and following ones, in presence of bimodal spectra. Results highlight that the profile is influenced by the dominant component, in the case of swell or wind sea dominated fields. In general, troughs amplitudes attain larger values than crests amplitudes when considering the waves preceding and following the largest crest. Moreover, the average profile of the three largest waves is generally symmetric about the central crest. The spectrum influences the largest waves in a wave group, in particular the greater the wind sea energy, compared to the swells energy content, the bigger the crests and troughs amplitudes of the preceding and following wave.
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Hennig, Janou, Jule Scharnke, Bas Buchner, and Joris van den Berg. "Extreme Load-Response Mechanisms of a Tension Leg Platform due to Larger Wave Crests: Some Results of the ‘CresT’ JIP." In ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2011. http://dx.doi.org/10.1115/omae2011-50199.

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For the design of ships and offshore structures the largest crest height which can be expected in their lifetime is of key importance. This was confirmed by several incidences e.g. in hurricanes in the Gulf of Mexico during the recent years. This is why MARIN started up the CresT JIP with a number of partners. The CresT JIP is now completed and some results of the extreme wave load and response mechanisms observed during model tests with a TLP will be presented in this paper. First an overview is given of the loading and response process during the most extreme event observed. As a next step the loading and response is related to the time and spatial characteristics of the waves, as it is not per definition the highest local crest or wave height that results in the most extreme dynamic response. Furthermore, the effect of different TLP design variations and short-crestedness will be discussed.
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Reports on the topic "Crests"

1

Kinkade, Danie. BCO-DMO: Surfing the Crests and Troughs of Data Sharing. Woods Hole Oceanographic Institution, 2022. http://dx.doi.org/10.1575/1912/29174.

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Many of the challenges currently associated with sharing oceanographic data currently facing researchers and the repositories through which they share their data, are cultural rather than technical. This talk presents an overview of obstacles and opportunities related to data sharing within the oceanographic community.
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Smith, I. R. Surficial geology, La Biche River northwest, Yukon-Northwest Territories, NTS 95-C/11, 12, 13, and 14. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/330591.

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This map is situated in the Hyland Plateau, west of the Mackenzie Mountains, southeast Yukon. The area was inundated by the Cordilleran Ice Sheet during the Late Wisconsinan glaciation. Ice advanced east to northeast across the rolling bedrock terrain, producing dense networks of sometimes cross-cutting bedrock flutings and drumlinoid ridges. During deglaciation, ice flow became increasingly topographically constrained, shifting to more northward flow along major valleys. Meltwater flowing north initially crossed the divide into the Nahanni River basin. Later, as ice retreated south and eastwards, ice-contact deltas and kame terraces formed along the retreating margins. The area is largely covered by till veneer, with bedrock exposed along most ridge crests and glacially-incised valley walls. Shale units within the Besa River and Mattson formations appear prone to failure, and large rotational landslides are common.
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Carter, T. R., C E Logan, and H. A. J. Russell. Three-dimensional model of dolomitization patterns in the Salina Group A-1 Carbonate and A-2 Carbonate units, Sombra Township, Lambton County, southern Ontario. Natural Resources Canada/CMSS/Information Management, 2024. http://dx.doi.org/10.4095/332363.

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Dolomitization of carbonate rocks is a subject of considerable interest due to association with oil and gas reservoirs and Mississippi Valley Type ore deposits. Conceptual two-dimensional models of dolomitization are common in the literature, however numeric models supported by high quality data are rare to nonexistent. This paper presents three-dimensional (3-D) dolomitization patterns in the Salina Group A-1 Carbonate Unit and A-2 Carbonate Unit located in Sombra Township, Lambton County. The source data consists of percent dolomite measurements collected from 9727 drill cutting samples, stained with alizarin red, from 409 petroleum wells. Numerical interpolants of the percentage of dolomite versus limestone in the two formations are developed within the boundaries of lithostratigraphic formation layers derived from a 3-D geologic model of southern Ontario, published as GSC Open File 8795 (Carter et al. 2021b). The model was developed using Leapfrog© Works software with a 400 m grid resolution. Results show that increased proportions of dolomite vs limestone in both formations are spatially associated with the flanks and crests of pinnacles in the underlying Lockport Group carbonates, over which the B Salt has been dissolved, and the downthrown side of the Dawn Fault and Becher faults. In the A-1 Carbonate there is an increase in dolomite content over a minority of incipient reefs in the Lockport, and in the A-2 Carbonate Unit there is a gradational increase in dolomite content upwards from a basal limestone to 100% dolomite. The cross-cutting relationships of dolomite occurrence in the A-1 Carbonate on the flanks and crests of some pinnacles support a post-depositional burial diagenesis mechanism, consistent with previous interpretations. The pathway for the dolomitizing fluid was laterally through porous and permeable regional paleokarst in the underlying Lockport Group, uppermost Goat Island and Guelph formations, and upwards through the porous reefal carbonates of the pinnacles. Association of dolomitization haloes with dissolution features in halite of the overlying B Salt Unit further suggest that the dolomitizing fluids were also responsible for salt dissolution. The preferential association of dolomite with the Dawn and Becher faults suggest that movement of the dolomitizing fluid was also fault controlled. This project demonstrates the feasibility and merit of assignment and interpolation of attribute values constrained by lithostratigraphic layers in the regional 3-D geologic model of southern Ontario. Spatial associations of dolomite with other geological features are more clearly resolved than in a 2-D study.
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Ogle, James P., Md Touhiduzzaman, Quan H. Nguyen, and Priya Thekkumparambath Mana. CReST-VCT System Integration Framework. Office of Scientific and Technical Information (OSTI), 2020. http://dx.doi.org/10.2172/1601662.

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Chung, Gregory K., Joanne K. Michiuye, David G. Brill, et al. CRESST Human Performance Knowledge Mapping System. Defense Technical Information Center, 2002. http://dx.doi.org/10.21236/ada453905.

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Zulch, Peter A. An Overview of the Crest Challenge. Defense Technical Information Center, 1997. http://dx.doi.org/10.21236/ada342382.

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Struik, L. C. Living with creeks. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2015. http://dx.doi.org/10.4095/295687.

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Dorr, Brian S., Kristi L. Sullivan, Paul D. Curtis, Richard B. Chipman, and Russell D. McCullough. Double-crested Cormorants. U.S. Department of Agriculture, Animal and Plant Health Inspection Service, 2016. http://dx.doi.org/10.32747/2016.7207735.ws.

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The history of conflict between double-crested cormorants and human interest in fisheries is long and convoluted. Overall, double-crested cormorants are not major consumers of commercial and sportfish species. However, exceptions have been recorded at specific sites with documented impacts on local fisheries. Double-crested cormorants can have a significant impact on vegetation at breeding sites through normal nesting activities. Their guano is acidic and can change soil chemistry, killing ground vegetation and irreversibly damaging nest trees. Humans should avoid direct contact with excrement from wildlife, including droppings from cormorants. The U.S. Fish and Wildlife Service (USFWS) has the primary responsibility and authority for managing migratory bird populations in the U.S. This publication will focus on the double-crested cormorant, which is the most numerous and widely dispersed of the species.
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von Balthasar, Hans Urs. Homo creatus est. Saint John Publications, 2022. http://dx.doi.org/10.56154/r4.

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Lambert, Ray, Antoine Masson, Johnny Mogenson, et al. Bericht der CREST Policy-Mix-Expertengruppe - Österreich 2008. CREST Policy-Mix-ExpertInnengruppe, 2008. http://dx.doi.org/10.22163/fteval.2008.107.

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