Relevant bibliographies by topics / Seasonal changes. eng

Contents

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

Academic literature on the topic 'Seasonal changes. eng'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 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 'Seasonal changes. eng.'

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 "Seasonal changes. eng"

1

Garcia, Nicholas W., Timothy J. Greives, Devin A. Zysling, Susannah S. French, Emily M. Chester, and Gregory E. Demas. "Exogenous insulin enhances humoural immune responses in short-day, but not long-day, Siberian hamsters ( Phodopus sungorus )." Proceedings of the Royal Society B: Biological Sciences 277, no. 1691 (2010): 2211–18. http://dx.doi.org/10.1098/rspb.2009.2230.

Full text
Abstract:
Many animals experience marked seasonal fluctuations in environmental conditions. In response, animals display adaptive alterations in physiology and behaviour, including seasonal changes in immune function. During winter, animals must reallocate finite energy stores from relatively costly, less exigent systems (e.g. reproduction and immunity) to systems critical for immediate survival (e.g. thermoregulation). Seasonal changes in immunity are probably mediated by neuroendocrine factors signalling current energetic state. One potential hormonal candidate is insulin, a metabolic hormone released
APA, Harvard, Vancouver, ISO, and other styles
2

Baird, Dan. "An assessment of the functional variability of selected coastal ecosystems in the context of local environmental changes." ICES Journal of Marine Science 66, no. 7 (2009): 1520–27. http://dx.doi.org/10.1093/icesjms/fsp045.

Full text
Abstract:
Abstract Baird, D. (2009) An assessment of the functional variability of selected coastal ecosystems in the context of local environmental changes. – ICES Journal of Marine Science, 66: 1520–1527. The functioning of coastal ecosystems is greatly dependent on a wide variety of external pulses (e.g. tides, freshwater influx, seasonal trends in temperature, nutrient input, etc.). Assessments of the effect of a selection of environmental characteristics driven by natural and/or anthropogenic forces on ecosystem function are given using selected ecosystem properties, such as total system throughput
APA, Harvard, Vancouver, ISO, and other styles
3

Zheng, Minjie, Jesper Sjolte, Florian Adolphi, et al. "Climate information preserved in seasonal water isotope at NEEM: relationships with temperature, circulation and sea ice." Climate of the Past 14, no. 7 (2018): 1067–78. http://dx.doi.org/10.5194/cp-14-1067-2018.

Full text
Abstract:
Abstract. Analyzing seasonally resolved δ18O ice core data can aid the interpretation of the climate information in ice cores, also providing insights into factors governing the δ18O signal that cannot be deciphered by investigating the annual δ18O data only. However, the seasonal isotope signal has not yet been investigated in northern Greenland, e.g., at the NEEM (North Greenland Eemian Ice Drilling) ice core drill site. Here, we analyze seasonally resolved δ18O data from four shallow NEEM ice cores covering the last 150 years. Based on correlation analysis with observed temperature, we attr
APA, Harvard, Vancouver, ISO, and other styles
4

Kirchner, James W., and Scott T. Allen. "Seasonal partitioning of precipitation between streamflow and evapotranspiration, inferred from end-member splitting analysis." Hydrology and Earth System Sciences 24, no. 1 (2020): 17–39. http://dx.doi.org/10.5194/hess-24-17-2020.

Full text
Abstract:
Abstract. The terrestrial water cycle partitions precipitation between its two ultimate fates: “green water” that is evaporated or transpired back to the atmosphere, and “blue water” that is discharged to stream channels. Measuring this partitioning is difficult, particularly on seasonal timescales. End-member mixing analysis has been widely used to quantify streamflow as a mixture of isotopically distinct sources, but knowing where streamwater comes from is not the same as knowing where precipitation goes, and this latter question is the one we seek to answer. Here we introduce “end-member sp
APA, Harvard, Vancouver, ISO, and other styles
5

Alves, Eliane G., Julio Tóta, Andrew Turnipseed, et al. "Leaf phenology as one important driver of seasonal changes in isoprene emissions in central Amazonia." Biogeosciences 15, no. 13 (2018): 4019–32. http://dx.doi.org/10.5194/bg-15-4019-2018.

Full text
Abstract:
Abstract. Isoprene fluxes vary seasonally with changes in environmental factors (e.g., solar radiation and temperature) and biological factors (e.g., leaf phenology). However, our understanding of the seasonal patterns of isoprene fluxes and the associated mechanistic controls is still limited, especially in Amazonian evergreen forests. In this paper, we aim to connect intensive, field-based measurements of canopy isoprene flux over a central Amazonian evergreen forest site with meteorological observations and with tower-mounted camera leaf phenology to improve our understanding of patterns an
APA, Harvard, Vancouver, ISO, and other styles
6

Nayyar, Kausar, and Raymond Cochrane. "Seasonal Changes in Affective State Measured Prospectively and Retrospectively." British Journal of Psychiatry 168, no. 5 (1996): 627–32. http://dx.doi.org/10.1192/bjp.168.5.627.

Full text
Abstract:
BackgroundThe study was designed to investigate whether seasonal mood and behavioural changes are detectable prospectively in a non-clinical population in the way they have been reported in retrospective studies. The specificity of any seasonal fluctuation in affective state was also investigated by measuring anxiety as well as depression.MethodTo measure seasonal fluctuations in affect and behaviour prospectively, 25 women were interviewed every month for one year using four scales (depression, anxiety, stress, and behavioural change). Retrospective accounts of mood and behaviour at the end o
APA, Harvard, Vancouver, ISO, and other styles
7

Trippel, Edward A., and Steven RE Neil. "Maternal and seasonal differences in egg sizes and spawning activity of northwest Atlantic haddock (Melanogrammus aeglefinus) in relation to body size and condition." Canadian Journal of Fisheries and Aquatic Sciences 61, no. 11 (2004): 2097–110. http://dx.doi.org/10.1139/f04-125.

Full text
Abstract:
Egg and larval production of 22 captive spawning pairs of northwest Atlantic haddock (Melanogrammus aeglefinus) were monitored. Females spawned an average of nine egg batches (range 3–16) with a mean batch fecundity of 60 000 eggs and mean total fecundity of 535 000 eggs. Mean spawning duration was 37 days with a mean batch interval of 5.4 days. In multiple linear regression, male Fulton's condition factor (range 1.10–1.55) and mean batch interval explained 56% of variation in fertilization rate (33% and 23%, respectively). Seasonal composite egg diameter spanned 1.37–1.53 mm among females. Me
APA, Harvard, Vancouver, ISO, and other styles
8

Robert, Kylie A., John A. Lesku, Jesko Partecke, and Brian Chambers. "Artificial light at night desynchronizes strictly seasonal reproduction in a wild mammal." Proceedings of the Royal Society B: Biological Sciences 282, no. 1816 (2015): 20151745. http://dx.doi.org/10.1098/rspb.2015.1745.

Full text
Abstract:
Change in day length is an important cue for reproductive activation in seasonally breeding animals to ensure that the timing of greatest maternal investment (e.g. lactation in mammals) coincides with favourable environmental conditions (e.g. peak productivity). However, artificial light at night has the potential to interfere with the perception of such natural cues. Following a 5-year study on two populations of wild marsupial mammals exposed to different night-time levels of anthropogenic light, we show that light pollution in urban environments masks seasonal changes in ambient light cues,
APA, Harvard, Vancouver, ISO, and other styles
9

Hernández-Guevara, Norma A., Daniel Pech, and Pedro-Luis Ardisson. "Temporal trends in benthic macrofauna composition in response to seasonal variation in a tropical coastal lagoon, Celestun, Gulf of Mexico." Marine and Freshwater Research 59, no. 9 (2008): 772. http://dx.doi.org/10.1071/mf07189.

Full text
Abstract:
Aquatic habitats in some tropical coastal environments can change seasonally, causing changes in the community structure of the benthic macrofauna. A tropical coastal lagoon, the Celestun lagoon, on the north-west Yucatan peninsula, was sampled seasonally and faunal, water and sediment data were compared with conditions during the 1994–1995 weather cycle across a grid of 12 sites distributed along the lagoon’s salinity gradient. Habitat variation was expressed as physical factors associated with the water column (e.g. salinity) and bottom sediments (e.g. interstitial salinity, texture), wherea
APA, Harvard, Vancouver, ISO, and other styles
10

Perovich, Donald K., Jacqueline A. Richter-Menge, and Walter B. Tucker. "Seasonal changes in Arctic sea-ice morphology." Annals of Glaciology 33 (2001): 171–76. http://dx.doi.org/10.3189/172756401781818716.

Full text
Abstract:
AbstractThe morphology of the Arctic sea-ice cover undergoes large changes over an annual cycle. These changes have a significant impact on the heat budget of the ice cover, primarily by affecting the distribution of the solar radiation absorbed in the ice-ocean system. In spring, the ice is snow-covered and ridges are the prominent features. The pack consists of large angular floes, with a small amount of open water contained primarily in linear leads. By the end of summer the ice cover has undergone a major transformation. The snow cover is gone, many of the ridges have been reduced to hummo
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Seasonal changes. eng"

1

Zerlin, Ricardo Alexandre. "Variação temporal dos macroinvertebrados bentônicos, em lagoa marginal ao Rio Paranapanema-SP /." Botucatu : [s.n.], 2011. http://hdl.handle.net/11449/89987.

Full text
Abstract:
Orientador: Raoul Henry<br>Banca: Juliano Joé Corbi<br>Banca: Paulo Augusto Zaitune Pamplin<br>Resumo: O objetivo do presente trabalho foi caracterizar a comunidade bentônica quanto à composição taxonômica, e a densidade das populações e também avaliar a qualidade da água e do sedimento nos períodos distintos do ciclo hidrológico (enchente, águas altas, vazante e águas baixas) da lagoa do Camargo, verificando possíveis relações entre as variáveis físico-químicas na estrutura da comunidade bentônica ao longo de um gradiente temporal. As coletas foram realizadas mensalmente no período de agosto
APA, Harvard, Vancouver, ISO, and other styles
2

Guido, Zack, Jennifer C. McIntosh, Shirley A. Papuga, and Thomas Meixner. "Seasonal glacial meltwater contributions to surface water in the Bolivian Andes: A case study using environmental tracers." ELSEVIER SCIENCE BV, 2016. http://hdl.handle.net/10150/626096.

Full text
Abstract:
Study region: The Cordoriri watershed and vicinity in the Cordillera Real, Bolivia, South America Study focus: Recent warming has contributed to substantial reductions in glaciers in many regions around the globe. Melting of these glaciers alters the timing and magnitude of streamflows and diminishes water resources accumulated in past climates. These changes are especially acute in regions with small glaciers and problematic for populations relying on surface water. In Bolivia, most glaciers are less than 0.5 km(2) and about 2 million people draw water in part from glacier-fed watersheds. Spa
APA, Harvard, Vancouver, ISO, and other styles
3

Ivey, Peter. "Changes in rainfall seasonality in the Western Cape, South Africa: an exploration of methods for determining the start and end of the rainfall season." Master's thesis, Faculty of Science, 2021. http://hdl.handle.net/11427/32753.

Full text
Abstract:
The aim of this thesis is to detect and analyse changes in seasonality in rainfall for various groups of weather stations in the Western Cape area. Weather stations with similar seasonal patterns are firstly grouped together using certain clustering algorithms. The start and end of the rainfall season dates for the different groups of weather stations are estimated and then compared over time to determine whether there have been any changes. Once these start and end of season dates have been estimated, the length of the rainfall season is estimated and compared over time. Studies have been per
APA, Harvard, Vancouver, ISO, and other styles
4

Tay, Michael T. W. "Numerical modelling approach for the management of seasonally influenced river channel entrance." Thesis, University of Portsmouth, 2018. https://researchportal.port.ac.uk/portal/en/theses/numerical-modelling-approach-for-the-management-of-seasonally-influenced-river-channel-entrance(c71e3d9a-58a6-4b7f-afd2-7537713d5fb1).html.

Full text
Abstract:
The engineering management of river channel entrances has often been regarded as a vast and complex subject matter. Understanding the morphodynamic nature of a river channel entrance is the key in solving water-related disasters, which is a common problem in all seasonally influenced tropical countries. As a result of the abrupt increase in population centred along coastal areas, human interventions have affected the natural flows of the river in many ways, mainly as a consequence of urbanisation altering the changes in the supply of sediments. In tropical countries River channel entrances are
APA, Harvard, Vancouver, ISO, and other styles

Books on the topic "Seasonal changes. eng"

1

Hameed, Saji N. The Indian Ocean Dipole. Oxford University Press, 2018. http://dx.doi.org/10.1093/acrefore/9780190228620.013.619.

Full text
Abstract:
Discovered at the very end of the 20th century, the Indian Ocean Dipole (IOD) is a mode of natural climate variability that arises out of coupled ocean–atmosphere interaction in the Indian Ocean. It is associated with some of the largest changes of ocean–atmosphere state over the equatorial Indian Ocean on interannual time scales. IOD variability is prominent during the boreal summer and fall seasons, with its maximum intensity developing at the end of the boreal-fall season. Between the peaks of its negative and positive phases, IOD manifests a markedly zonal see-saw in anomalous sea surface
APA, Harvard, Vancouver, ISO, and other styles
2

Goswami, B. N., and Soumi Chakravorty. Dynamics of the Indian Summer Monsoon Climate. Oxford University Press, 2017. http://dx.doi.org/10.1093/acrefore/9780190228620.013.613.

Full text
Abstract:
Lifeline for about one-sixth of the world’s population in the subcontinent, the Indian summer monsoon (ISM) is an integral part of the annual cycle of the winds (reversal of winds with seasons), coupled with a strong annual cycle of precipitation (wet summer and dry winter). For over a century, high socioeconomic impacts of ISM rainfall (ISMR) in the region have driven scientists to attempt to predict the year-to-year variations of ISM rainfall. A remarkably stable phenomenon, making its appearance every year without fail, the ISM climate exhibits a rather small year-to-year variation (the sta
APA, Harvard, Vancouver, ISO, and other styles
3

B. Biesiada-Drzazga, D. Banaszewska, A. Koncerewicz, A. Jóźwik, and J. Horbańczuk. Examination of changes in selected external and internal egg traits during the geese laying season and their effect on gosling hatching results. Verlag Eugen Ulmer, 2015. http://dx.doi.org/10.1399/eps.2015.77.

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

Vuorinen, Ilppo. Post-Glacial Baltic Sea Ecosystems. Oxford University Press, 2018. http://dx.doi.org/10.1093/acrefore/9780190228620.013.675.

Full text
Abstract:
Post-glacial aquatic ecosystems in Eurasia and North America, such as the Baltic Sea, evolved in the freshwater, brackish, and marine environments that fringed the melting glaciers. Warming of the climate initiated sea level and land rise and subsequent changes in aquatic ecosystems. Seminal ideas on ancient developing ecosystems were based on findings in Swedish large lakes of species that had arrived there from adjacent glacial freshwater or marine environments and established populations which have survived up to the present day. An ecosystem of the first freshwater stage, the Baltic Ice La
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Seasonal changes. eng"

1

Päeske, Laura, Maie Bachmann, Jaan Raik, and Hiie Hinrikus. "EEG Functional Connectivity Detects Seasonal Changes." In IFMBE Proceedings. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-9038-7_44.

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

Sedrique, Zoyem Tedonfack, and Julius Tata Nfor. "Rainfall Variability and Quantity of Water Supply in Bamenda I, Northwest Region of Cameroon." In African Handbook of Climate Change Adaptation. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-45106-6_139.

Full text
Abstract:
AbstractBamenda I municipality found in the humid tropic is endowed with a dense hydrological network which makes it a water catchment for the entire region. Paradoxically, the region still suffers problems of water shortage. This is due to the spatial and temporal variability in rainfall that greatly affects water supply through its impacts on surface and groundwater. For this reason, we came up with the research topic “Rainfall variability and quantity of water supply in Bamenda 1, Northwest Region of Cameroon.” The objective of this study is to examine the manifestations of rainfall variability, and how it affects quantity of water supply in the humid tropics. Rainfall data use for this study comprised of annual, monthly, and daily rainfall over a period of 55 years. Water supply data was made of monthly and annual supply. With these data, a Pearson’s correlation was computed, and it gave a value of 0.701, with a rainfall proportion of 49.14% and 50.86% for other factors. The seasonality and the Standardized Precipitation Index were equally analyzed. At the end of the study, results showed that rainfall events in Bamenda I fluctuates with time and in space. It equally presented a reduction in the number of rainy days from 204 days in 1663 to 155 in 2018. This led to a reduction in length of rainy season and in rainfall amounts. In addition, the area has witnessed sedimentation of riverbeds and water reservoirs due to erosion and deposition during high rainfall peaks. Equally, floods observed during high rainfall episodes have become a potential threat to water infrastructures imposing exceptional water shortages during the rainy seasons. Due to these, actors in the water supply sector are putting in measures to remedy the situation.
APA, Harvard, Vancouver, ISO, and other styles
3

Abioja, M. O., and M. O. Adekunle. "Climate Change: Depression in Egg Production in Chickens During the Hot Season with Long-Term Honey Administration." In Handbook of Climate Change Resilience. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-93336-8_15.

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

Abioja, M. O., and M. O. Adekunle. "Climate Change: Depression in Egg Production in Chickens During the Hot Season with Long-Term Honey Administration." In Handbook of Climate Change Resilience. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-71025-9_15-1.

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

Ianora, Adrianna, and Bruno Scotto di Carlo. "Observations on egg production rates and seasonal changes in the internal morphology of Mediterranean populations of Acartia clausi and Centropages typicus." In Biology of Copepods. Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-3103-9_23.

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

"Fishery Resources, Environment, and Conservation in the Mississippi and Yangtze (Changjiang) River Basins." In Fishery Resources, Environment, and Conservation in the Mississippi and Yangtze (Changjiang) River Basins, edited by Jing Yuan, Yuguo Xia, Zhongjie Li, Zhan Yin, and Jiashou Liu. American Fisheries Society, 2016. http://dx.doi.org/10.47886/9781934874448.ch10.

Full text
Abstract:
&lt;em&gt;Abstract&lt;/em&gt;.—The Hanjiang River is the largest tributary of the Yangtze River and contains Danjiangkou Dam, which forms Danjiangkou Reservoir in the middle and upper reaches of the river. During the past 50 years, fisheries resources have changed significantly in the middle and lower Hanjiang River and in Danjiangkou Reservoir. Spawning grounds for major carps and other commercially important fishes have disappeared. Downstream of Danjiangkou Dam, total egg quantity spawned by major carps and other commercially im portant fishes have decreased while similar measures from small-bodied fishes have increased. Important commercial fishes have experienced delayed spawning times and decreased growth. Overall catches of commercial fishes have decreased downstream of the dam, though increased upstream. Some exotic fishes captured in the Danjiangkou Reservoir were likely escapees from cage-culture fish farms in the reservoir or from land-based fish farms around the reservoir. Changes in fisheries resources were presumed related to reservoir management strategies, which produced a narrower range of year-round water temperatures and caused decreases in seasonal water flow variation downstream, overfishing, and eutrophication in the reservoir. To implement a national water diversion policy in central China, the height of the Danjiangkou Dam was increased 15 m in 2012, which significantly increased the impoundment area of the Danjiangkou Reservoir at the end of 2014. Further changes in fisheries resources can be expected in the future. At the present time, management and conservation strategies for fisheries resources need to be developed to ensure future fisheries sustainability for both the Hanjiang River and the Danjiangkou Reservoir.
APA, Harvard, Vancouver, ISO, and other styles
7

Dunn, Peter O. "Changes in timing of breeding and reproductive success in birds." In Effects of Climate Change on Birds. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198824268.003.0009.

Full text
Abstract:
Many studies on birds have shown advancing dates of egg-laying in response to climate change. This chapter reviews the latest knowledge about the roles of photoperiod, food abundance, body condition, and hormones in regulating the timing of egg-laying. A variety of responses and predictors have been discovered in recent studies, some of which may be related to whether a species relies on daily food intake (‘income’) or stored resources (‘capital’) for breeding. The literature on advancing laying dates shows that the rate is dependent on the number of broods per season, habitat, and trophic level. Mismatches between timing of breeding and peaks in food supply are often mentioned as a potential threat to populations. However, to date, there is no association between changes in laying date and population trends, which suggests that the effects of climate change on bird populations may be driven by other factors.
APA, Harvard, Vancouver, ISO, and other styles
8

Robinson, Geoffrey B. "Release, Restrict, Discipline, and Punish." In The Killing Season. Princeton University Press, 2019. http://dx.doi.org/10.23943/princeton/9780691196497.003.0009.

Full text
Abstract:
This chapter argues that the decision to release most political detainees was the result of a major international campaign undertaken by human rights organizations in the mid-1970s. That campaign succeeded in large part because it coincided with significant changes in global norms and attitudes pertaining to human rights as well as the position of the U.S. government, and came at a time when Indonesia was vulnerable to outside economic pressures. The chapter makes clear, however, that there was powerful resistance to the idea of releasing these prisoners—and an insistence on the continued need to protect the body politic from the “latent danger of Communism”—particularly on the part of the army leadership. As a consequence, even after prisoners were released, they and their families continued to suffer egregious restrictions, formal and informal, on every aspect of their lives. The formal restrictions continued until the end of the New Order in 1998, but the deep social and psychological legacies have lasted much longer. Finally, the chapter makes the case that the onerous restrictions on released prisoners were part of a more general obsession on the part of the New Order regime with creating and maintaining order, discipline, and stability.
APA, Harvard, Vancouver, ISO, and other styles
9

Williams, Mark W., and Nel Caine. "Hydrology and Hydrochemistry." In Structure and Function of an Alpine Ecosystem. Oxford University Press, 2001. http://dx.doi.org/10.1093/oso/9780195117288.003.0010.

Full text
Abstract:
Seasonally snow-covered areas of Earth’s mountain ranges are important components of the global hydrologic cycle. Although their area is limited, the snowpacks of these areas are a major source of the water supply for runoff and ground water recharge over wide areas of the mid-latitudes. They are also sensitive indicators of climatic change. The release of ions from the snowpack is an important component in the biogeochemistry of alpine areas and may also function as a sensitive indicator of changes in atmospheric chemistry. The demand for water in the semiarid areas of the western United States is reflected in extensive systems of reservoirs, canals, and flow diversions that have been constructed over the past century. Most of the water resources tapped by these systems derives from the mountain environments of the Rocky Mountains, where contributions of the alpine have long been recognized (Martinelli 1975). In Colorado, 9000 km2 of alpine terrain, less than 4% of the state’s area, provide more than 20% of the state’s streamflow and is especially important in maintaining late-summer flows (Martinelli 1975). Lakes in the Rocky Mountains are relatively uncontaminated compared with many other high-elevation lakes in the world, with the median value of NO-3 concentrations less than 1 μeq L-1 (Psenner 1989). However, in comparison with downstream ecosystems, these high-elevation ecosystems are relatively sensitive to changes in the flux of energy, chemicals, and water because of extensive areas of exposed and unreactive bedrock, rapid hydrologic flushing rates during snowmelt, limited extent of vegetation and soils, and short growing seasons (Williams 1993). Hence, even small changes in atmospheric deposition have the potential to result in large changes in ecosystem dynamics and water quality (Williams et al. 1996a). Furthermore, these ecosystem changes may occur in alpine areas before they occur in downstream ecosystems (Williams et al. 1996b). Apart from its use in municipal supply, agriculture, recreation, and power generation, this water also mediates transfers of geomorphic and biological materials. For this reason, the drainage basin, or catchment, has long been recognized as a basic geomorphic unit in environmental research (e.g., Chorley 1967; Bormann and Likens 1969).
APA, Harvard, Vancouver, ISO, and other styles
10

"Nutrition assessment." In Oxford Handbook of Nutrition and Dietetics, edited by Joan Webster-Gandy, Angela Madden, and Michelle Holdsworth. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780199585823.003.0004.

Full text
Abstract:
Dietary assessment 34 Individual assessment 38 Body composition 44 Anthropometry 50 This chapter considers dietary assessment of populations and groups and nutrition assessment of the individual. Assessment of physical activity and energy expenditure can be found in Chapter 5, ‘Macronutrients and energy balance’. Dietary assessment is an imprecise procedure; the imprecision can be minimized by using the appropriate technique and by an understanding of the errors implicit in the methodology. Dietary assessment is further hampered by the fact that, in assessing diet, it will change. Precision varies from very precise techniques, such as metabolic balance studies to the broad estimates of population studies. The methodology chosen must be appropriate for the nutrient/s that are being assessed and for the individual or population being assessed. The timing of the assessment is also important and must consider cultural variations, such as differences in the week (week day vs. weekend day), seasons (wet vs. dry season), and special occasions, e.g. Ramadan, Christmas....
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Seasonal changes. eng"

1

Radulescu, Victorita. "Application of the Neural Networks in Prediction of the Thermal Flow on the Jiu River." In ASME 2020 Heat Transfer Summer Conference collocated with the ASME 2020 Fluids Engineering Division Summer Meeting and the ASME 2020 18th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/ht2020-9043.

Full text
Abstract:
Abstract Water temperature is an important parameter that influences the life near watercourses. The physical and chemical properties as the density and viscosity, gas solubility in water and in particular of the oxygen, the kinematics of the micro-biological and chemical phenomena affects not only the aquatic life but also the human life and animals living near the watercourse. In the Jiu river is discharged the water coming from the cooling towers of three thermo-electric power plants placed upstream. According to the recent researches realized by the EU Environmental Commission in Romania u
APA, Harvard, Vancouver, ISO, and other styles
2

Chen, Z., Marco Venturi, and R. Bijker. "Morphology and Pipeline Design Through a Dynamic Landfall Area: The Black Sea Pipeline Case." In ASME 2002 21st International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2002. http://dx.doi.org/10.1115/omae2002-28142.

Full text
Abstract:
The Blue Stream pipeline project is a gas transportation system for the delivery of processed gas from a gas station in the southern Russia across the Black Sea to Ankara, Turkey. The Turkish landfall of the offshore pipeline in the Black Sea is located near Samsun, see Figure 1 for the pipeline route. One of the main aspects of the design of pipeline through a morphologically dynamic area such as landfall is the required burial depth (Chen et al, 1998, 2001 and Bijker et al 1995). The burial depth is the result of an optimisation between: • safety of the pipeline (which often requires a large
APA, Harvard, Vancouver, ISO, and other styles
3

Shui, Biyuan, Zhongyuan Guan, Liying Zhao, and Xiaoyan Shi. "Industrial Test and Application of Drag Reducer in Sudan GNPOC Crude Oil Pipeline." In 2006 International Pipeline Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/ipc2006-10044.

Full text
Abstract:
The drag reducer, EP-W203, was industrially tested and applied in a long segment of Sudan GNPOC (Greater Nile Petroleum Operating Company) crude oil pipeline. From July 29th to August 3th in 2001, between PS#1 and PS#3, which totals 547km in length, a single point of DRA injection at PS#1 was tested. With an average DRA injection concentration of about 23.4 ppm, 8.28% of drag reduction and 5.09% of throughput increase was gained. It is indicated that 70–80% of drag reduction capacity was still remained after 237 kilometers of pipe wall shear from PS#1 to PS#2. But after severe local shear (wit
APA, Harvard, Vancouver, ISO, and other styles
4

Miller, Alistair I., and Romney B. Duffey. "Why Massive Nuclear Deployment is Essential." In 17th International Conference on Nuclear Engineering. ASMEDC, 2009. http://dx.doi.org/10.1115/icone17-75949.

Full text
Abstract:
Avoiding CO2 emissions while meeting global energy needs is a far greater challenge than most commentators and governments appreciate. Even the Intergovernmental Panel on Climate Change has offered no scenario that would stabilize atmospheric levels. The capacity of the oceans to absorb CO2 is limited to about 40% of the level of emissions in 1990. Shared equitably among the present-day world population, per capita emissions of 35% of the current European average would only return the world to 100% of 1990 emission levels. Yet world population will probably grow by 25% by 2050 and, between 199
APA, Harvard, Vancouver, ISO, and other styles
5

Hack, Richard L., Elliot Sullivan-Lewis, and Vince G. McDonell. "Development of an Exhaust Enthalpy Control Unit to Augment Combined Heat and Power Applications." In ASME 2016 10th International Conference on Energy Sustainability collocated with the ASME 2016 Power Conference and the ASME 2016 14th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/es2016-59118.

Full text
Abstract:
One of the primary challenges facing DG/CHP systems involves effective design and operational match with potential end applications. A key weakness in the deployment of many DG/CHP systems is the inability of the installed system to properly match up with the actual load that it is being asked to serve. In general, it is difficult to optimally match the demand of both electricity and thermal requirements with a single system as a result of variations in loads with season, site operational changes, and other factors. It seems apparent that improved flexibility in how a DG/CHP system’s electrici
APA, Harvard, Vancouver, ISO, and other styles
6

Waite, Michael, and Vijay Modi. "Calibrated Building Energy Models for Community-Scale Sustainability Analyses." In ASME 2014 8th International Conference on Energy Sustainability collocated with the ASME 2014 12th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/es2014-6642.

Full text
Abstract:
Building energy contributes approximately 40% of U.S. greenhouse gas emissions and 75% of emissions in some urban areas. Evaluating modifications to existing building stocks is essential to a proper assessment of GHG reduction policy at various levels. With deeper penetration of intermittent renewable energy resources, supply and demand effects at a high resolution (e.g. hourly) will become more important as variations in grid emissions will become more significant. City-level hourly electricity load data is available; however, effects of building stock changes on usage profiles are not easily
APA, Harvard, Vancouver, ISO, and other styles
7

Wu, Li-Xia, and Mao-Yu Zheng. "Research of Combined Heating and Cooling by Solar Ground-Source Heat Pump and PCM Thermal Storage." In ASME 2005 International Solar Energy Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/isec2005-76045.

Full text
Abstract:
In severely cold climate, significant amount of energy is used to heat buildings. Both the theoretical computation and experiments show that it is difficult and uneconomical to use solar energy collected merely in winter. A new method has been developed to store solar energy during summer, fall, and spring for winter heating. This paper presents in details the combined heating and cooling system by solar ground-source heat pump (GSHP) and short-term phase change material (PCM) thermal storage. The hybrid system and season-shift mode can make the sustainable use of solar energy possible. As for
APA, Harvard, Vancouver, ISO, and other styles
8

von Bock und Polach, Rüdiger, Vinod Janardanan, and Sören Ehlers. "Ice Model Tests in Context of the Investment Value of an Offshore Vessel." In ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/omae2012-83854.

Full text
Abstract:
Offshore activities and shipping in Arctic regions increased significantly in the past decade due to fossil resources. These areas hold about 15% of the worlds oil and gas. Exploration or transportation in such harsh Arctic environments possesses additional risks for the crew, the material and the environment. Hence, ships need to be able to handle low temperatures and ice impacts. Ice class certificates issued by classification societies reflect the ships level of ice capability. They are further required to be admitted to ice covered waters or particular regions in seasons with a certain pro
APA, Harvard, Vancouver, ISO, and other styles
9

Schorr, Michael, Klaas Kole, and Ferdinand Foessing. "Monitoring and Screening of Pipelines for Movement: A Fast and Cost-Effective Alternative for Pipeline Operators to Measure Drift in Pipelines." In ASME-ARPEL 2019 International Pipeline Geotechnical Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/ipg2019-5324.

Full text
Abstract:
Abstract For pipelines in the oil, gas, and mining industry, movement of pipelines is one of the main integrity hazards. This movement in most cases is caused by landslides instigated by heavy rain, earthquakes or volcanic activities. If the pipeline movement remains undetected at an early stage, it can lead to the need for costly repairs to prevent, remove, or repair potential or actual damage. Moreover, if the movements stay undetected for too long, these lines may fail and lead to catastrophic events. This paper will illustrate what a fast and cost-effective solution to avoid these threats
APA, Harvard, Vancouver, ISO, and other styles
10

Keskinen, Erno, Jori Montonen, Nikhil Sharma, and Michel Cotsaftis. "Dynamics of Ice Milling and Breaking During Arctic Ship Steering Operations." In ASME 2014 12th Biennial Conference on Engineering Systems Design and Analysis. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/esda2014-20508.

Full text
Abstract:
Interest to sailing in arctic zone is increasing, as due to the climatic change, the seasons when northeast and northwest passages are open enough for see transportation, are getting every year longer and longer. Some other activities like oil and gas exploration and drilling at Barents Sea require also regular sea traffic connections to be opened. Sea operations at arctic zone are challenging, because thick ice generates a high magnitude dynamic load against the hull and the propulsion units. Turning and backward sailing in thick ice field are the most critical operations, in which the steera
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Seasonal changes. eng"

1

Douglas, Thomas, and Caiyun Zhang. Machine learning analyses of remote sensing measurements establish strong relationships between vegetation and snow depth in the boreal forest of Interior Alaska. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/41222.

Full text
Abstract:
The seasonal snowpack plays a critical role in Arctic and boreal hydrologic and ecologic processes. Though snow depth can be different from one season to another there are repeated relationships between ecotype and snowpack depth. Alterations to the seasonal snowpack, which plays a critical role in regulating wintertime soil thermal conditions, have major ramifications for near-surface permafrost. Therefore, relationships between vegetation and snowpack depth are critical for identifying how present and projected future changes in winter season processes or land cover will affect permafrost. V
APA, Harvard, Vancouver, ISO, and other styles
2

Aalto, Juha, and Ari Venäläinen, eds. Climate change and forest management affect forest fire risk in Fennoscandia. Finnish Meteorological Institute, 2021. http://dx.doi.org/10.35614/isbn.9789523361355.

Full text
Abstract:
Forest and wildland fires are a natural part of ecosystems worldwide, but large fires in particular can cause societal, economic and ecological disruption. Fires are an important source of greenhouse gases and black carbon that can further amplify and accelerate climate change. In recent years, large forest fires in Sweden demonstrate that the issue should also be considered in other parts of Fennoscandia. This final report of the project “Forest fires in Fennoscandia under changing climate and forest cover (IBA ForestFires)” funded by the Ministry for Foreign Affairs of Finland, synthesises c
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Seasonal changes. eng' for particular source types:
Journal articles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography