Bibliografie tematiche / Cologne water

Letteratura scientifica selezionata sul tema "Cologne water"

Autore: Grafiati
Pubblicato: 26 luglio 2024

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Articoli di riviste sul tema "Cologne water"

1

Erdener, Ugur, e Bayazit Ilhan. "Cologne water-induced visual loss". Ophthalmic Epidemiology 4, n. 4 (gennaio 1997): 177–78. http://dx.doi.org/10.3109/09286589709059191.

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Weisgerber, G. "An Atlas of Roman Water Conduits to Cologne". Philosophy and History 22, n. 1 (1989): 87–89. http://dx.doi.org/10.5840/philhist198922146.

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3

Kaur, Manpreet, D. S. Dahiya, Sonu Kumar, Prince . e Gulshan Yadav. "Appraisal's genotypes on water absorption, transpiration loss at senescence stage and genetic correlation of Chrysanthemum morifolium". International Journal of Agricultural Invention 2, n. 02 (22 novembre 2017): 201–5. http://dx.doi.org/10.46492/ijai/2017.2.2.16.

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A field experiment entitled “Appraisal's genotypes on water absorption, transpiration loss at senescence stage and genetic correlation of Chrysanthemum morifolium” was conducted at experimental orchard, department of Horticulture, CCS Haryana Agricultural University, Hisar (Haryana) during the 2016-17 in winter season to identify the suitable variety for successful cultivation as well as vase life of Chrysanthemum flower. Fifteen Genotypes namely, Aparajita, Anastasia, Braca Splendid, Charlia, Celtic, Cologne, Fortune, HF-164, Paladov Sunny, Paiwer-W, Paladov Dark, Papaya, Tocovar- 6, Vanilla Sorbet and White Double were selected for the evaluation. The significant responses in water absorption, transpiration loss at senescence stage and flower vase life were observed in White Double, Cologne, Charlia and Celtic. The maximum water absorption and transpiration loss were recorded in genotype White Double (116.83g and 72.20 ml. respectively) whereas maximum fresh weight was recorded with the genotype Cologne (120.00 g) while genotype White Double had longest vase life (20.66 days). The maximum per cent of opened flowers were noticed in the genotype Charlia (92.45 %) while maximum unopened flowers were noticed in genotype Celtic (21.86%) and the significant genetic correlation between different parameters and vase life of flowers were noted during experimentation.
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Skimina, Conrad A. "Recycling Irrigation Runoff on Container Ornamentals". HortScience 21, n. 1 (febbraio 1986): 32–34. http://dx.doi.org/10.21273/hortsci.21.1.32.

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Abstract Public Law 84-660 was approved by the U.S. Congress in 1956 (1) and amended as Public Law 92-500 by the Congress in 1972 (2). These laws are the Water Pollution Control Acts that set the standards for clean water. These laws prescribe point-discharge requirements of the federal government, the states, and Regional Water Quality Control Boards to prevent pollution and to maintain the integrity of receiving waters. In addition the state of California has the Porter-Cologne Water Quality Control Act (3).
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Cerini, Francesco, Giacomo Mattei, Luca Luiselli e Leonardo Vignoli. "Do lizards (Podarcis siculus) react to whip snake (Hierophis viridiflavus) scents? A comparative test on odour stimuli recognition". Behaviour 157, n. 3-4 (20 marzo 2020): 315–31. http://dx.doi.org/10.1163/1568539x-bja10003.

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Abstract We tested the ability in the ruin lizard (Podarcis siculus) to discriminate between odour of a predator (the whip snake Hierophis viridiflavus) and those from harmless sources. We analysed two lizard populations: one (PP) predated by snakes and another (PNP) where no snakes occur. We tested the rate of tongue flick directed to cotton-tips impregnated with odours, and the rate of tongue flick, the time spent in immobility, escaping and exploring the terrarium containing a diffuse odour. We used the smell of the snake as dangerous stimulus, water as blank control, and cologne as complex control. Both populations did not discriminate snake cue from complex odour in both the experiments. PP individuals were more active and prone to analysing and exploring the stimuli and the environment than PNP lizards. In PP, the higher interest towards cologne and snake scents could be triggered just by their complexity that requires more tongue flicks to be ‘analysed’, with no apparent adaptive anti-predatory value. Overall, we observed a total responsiveness and activity pattern higher in the PP respect to PNP.
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Zavarsky, Alex, e Lars Duester. "Anthropogenic influence on the Rhine water temperatures". Hydrology and Earth System Sciences 24, n. 10 (28 ottobre 2020): 5027–41. http://dx.doi.org/10.5194/hess-24-5027-2020.

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Abstract. River temperature is an important parameter for water quality and an important variable for physical, chemical and biological processes. River water is also used by production facilities as cooling agent. We introduced a new way of calculating a catchment-wide air temperature using a time-lagged and weighed average. Regressing the new air temperature vs. river water temperature, the meteorological influence and the anthropogenic heat input could be studied separately. The new method was tested at four monitoring stations (Basel, Worms, Koblenz and Cologne) along the river Rhine and lowered the root mean square error of the regression from 2.37 ∘C (simple average) to 1.02 ∘C. The analysis also showed that the long-term trend (1979–2018) of river water temperature was, next to the increasing air temperature, mostly influenced by decreasing nuclear power production. Short-term changes in timescales < 5 years were connected with changes in industrial production. We found significant positive correlations for the relationship.
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Rehm, Imke-Sophie, John Friesen, Kevin Pouls, Christoph Busch, Hannes Taubenböck e Peter F. Pelz. "A Method for Modeling Urban Water Infrastructures Combining Geo-Referenced Data". Water 13, n. 16 (22 agosto 2021): 2299. http://dx.doi.org/10.3390/w13162299.

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Water distribution networks are the backbone of any municipal water supply. Their task is to supply the population regardless of the respective demand. High resilience of these infrastructures is of great importance and has brought these infrastructures into the focus of science and politics. At the same time, the data collected is highly sensitive and often openly unavailable. Therefore, researchers have to rely on models that represent the topology of these infrastructures. In this work, a model is developed that allows the topology of an urban water infrastructure to be mapped using the example of Cologne, Germany by combining freely available data. On the one hand, spatial data on land use (local climate zones) are used to disaggregate the water demand within the city under consideration. On the other hand, the parallelism of water and urban transportation infrastructures is used to identify the topology of a network by applying optimization methods. These networks can be analyzed to identify vulnerable areas within urban structures.
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Netzel, Leon, Emily Drewing, Louis Netzel e Martin Denecke. "Understanding Public Acceptance of a Multifunctional Water Plaza: A Case Study". Water 13, n. 4 (23 febbraio 2021): 576. http://dx.doi.org/10.3390/w13040576.

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Climate change enhances pluvial flood risk in many cities all over the world, especially in densely populated urban areas with high impervious surfaces that need to adapt to heavy precipitation. For this purpose, multifunctional stormwater infrastructures such as water plazas appear promising as there is a high competition for open space in most urban areas. Yet, to date only very few water plazas have been realized with at least one implementation hampered by a lack of public acceptance. In this study, semi-structured interviews are used to investigate how plans to build a water plaza in the city of Cologne are perceived by local residents. Factors crucial to public acceptance are identified. Experience with flooding, knowledge of the planned construction and awareness of benefits turned out to be important for acceptance, whereas social and personal norms were less relevant. The identified factors led to finding recommendations to promote public acceptance of innovative climate adaptation measures like water plazas.
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Jux, Ulrich, Rainer M. Baginski, Hans-Günter Arnold, Martin Krönke e Peter N. Seng. "Detection of pharmaceutical contaminations of river, pond, and tap water from Cologne (Germany) and surroundings". International Journal of Hygiene and Environmental Health 205, n. 5 (gennaio 2002): 393–98. http://dx.doi.org/10.1078/1438-4639-00166.

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Kemen, Juliane, Silvia Schäffer-Gemein, Johanna Grünewald e Thomas Kistemann. "Heat Perception and Coping Strategies: A Structured Interview-Based Study of Elderly People in Cologne, Germany". International Journal of Environmental Research and Public Health 18, n. 14 (14 luglio 2021): 7495. http://dx.doi.org/10.3390/ijerph18147495.

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The transdisciplinary project “Heat-Health Action Plan for Elderly People in Cologne” addresses the most heat-vulnerable risk group, people over 65 years of age. A quantitative study aimed to better understand heat perception and coping strategies of elderly people during heat waves to inform heat-health action plans. We conducted a representative quantitative survey via structured interviews with 258 randomly chosen people over 65 years old, living in their own homes in four areas of Cologne, Germany. These areas varied, both in terms of social status and heat strain. Data regarding demographics, health status, coping strategies, and heat perception were collected in personal interviews from August to October 2019. The majority of the participants perceived heat strain as moderate to very challenging. Women, people with a lower monthly income, and those with a lower health status found the heat more challenging. We found that participants adapted to heat with a number of body-related, home-protective, and activity-related coping strategies. The number of coping strategies was associated with perceived personal heat strain. There is a definite underuse of water-related heat adaption strategies among the elderly. This is of increasing relevance, as rising heat impact will lead to more heat-related geriatric morbidity. Our results are seminal to inform elderly-specific, socio-adapted local heat-health action plans.
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Più fonti

Tesi sul tema "Cologne water"

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Pålsson, Ale. "Our Side of the Water : Political Culture in the Swedish colony of St Barthélemy 1800–1825". Doctoral thesis, Stockholms universitet, Historiska institutionen, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-133528.

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The small island of St Barthélemy was a Swedish colony 1784–1878 and saw its greatest population growth and trade during the turn of the nineteenth century. This was because of Gustavia, the Swedish founded free port, which attracted mariners from the Caribbean, North America and Europe. Their goal was to become Swedish subjects, as Swedish neutrality provided a benefit during the various wars at this time between France, Great Britain and the United States. As these mariners changed their national allegiance from their country of origin to Sweden, questions about their political rights emerged. The makeup, as well as the role, of the local council became a contested issue between native and naturalized Swedes. This conflict, as well as many other local and global issues, was discussed in various mediums. I have examined petitions, the newspaper The Report of Saint Bartholomew and discussions within the council, to create an understanding of how political expression was formed by the population, as well as controlled by Swedish administrators. This analysis has been performed through an intersectional framework considering gender, race and ethnicity. My study shows that while most native and naturalized Swedes believed in input from the population, they had different perceptions of what the purpose of this input was. The Swedish administration saw the political participation of the naturalized population as purely advisory, without any obligation to perform its wishes, which the population resented and protested. Gender played a significant role in the formation of political expression, as masculinity was essential to the identity of white men and free men of colour as political subjects. Yet ethnicity, in terms of place of birth, had no significant impact among the free population’s political identity, although it did render them politically unreliable in the eye of native Swedish administration.
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Freire, Elionai Gomes. "5/6 nephrectomy and its influence on permeability water and eltrÃlitos in the colon of rats agreed.5/6 nephrectomy and its influence on permeability water and eltrÃlitos in the colon of rats agreed". Universidade Federal do CearÃ, 2016. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=17608.

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A nefrectomia 5/6 à um procedimento cirÃrgico muito utilizado em laboratÃrios de fisiologia para reproduzir a insuficiÃncia renal crÃnica dada a sua reprodutibilidade e praticidade. Pacientes com IR ou nefrectomizados, apresentam distÃrbios hemodinÃmicos como a hipervolemia e acÃmulo de substÃncias azotÃnicas no plasma, o que pode trazer sÃrias complicaÃÃes a diversos ÃrgÃos. O objetivo deste trabalho de pesquisa foi avaliar as alteraÃÃes que a nefrectomia 5/6 pode causar na permeabilidade colÃnica de ratos para Ãgua e eletrÃlitos (Na+,K+,Cl-) apÃs 3,7 e 14 dias de insuficiÃncia renal. O projeto foi aprovado pela CEUA-UFC com protocolo de n 11/15. Foram utilizados 92 animais (ratos machos wistar, pesando entre 280-300 g) divididos em trÃs grupos- 3 dias pÃs-nefrectomia 5/6, 7 dias pÃs-nefrectomia 5/6 e 14 dias pÃs nefrectomia 5/6- sendo cada grupo formado por um SHAM e outro experimental. Para os estudos da permeabilidade colÃnica de Ãgua e eletrÃlitos, os animais foram anestesiados com uretana, em seguida, submetidos à perfusÃo colÃnica com Tyroad + vermelho fenol durante 60min. Para todos os experimentos, monitoramos os parÃmetros hemodinÃmicos pressÃo arterial sistÃlica (PAS), pressÃo venosa central (PVC), frequÃncia cardÃaca (FC) e volume sanguÃneo (VS)e ainda as concentraÃÃes bioquÃmicas plasmÃticas de ureia e creatinina. Nossos resultados bioquÃmicos de urÃia e creatinina plasmÃtica nos grupos 7 e 14 dias confirmaram a insuficiÃncia renal apÃs nefrectomia 5/6 (114,8Â1,8dl/ml; 165,6Â7,2dl/ml) e (0,95Â0,02dl/ml; 1,3 0,07dl/ml) respectivamente. Os grupos 7 e 14 dias pÃs-nefrectomia 5/6 tambÃm apresentou significativas alteraÃÃes volÃmicas (11,12Â0,37 ml) e (15,83Â0,82ml). O grupo 3 dias nÃo apresentou resultados bioquÃmicos nem hemodinÃmicos significativos e uma insignificante secreÃÃo colÃnica de Ãgua e eletrÃlitos (Na+,K+,Cl-). CorrelaÃÃo por curvas de regressÃo linear entre a secreÃÃo colÃnica de agua e eletrÃlitos com a volemia no grupo 7dias se apresentou bastante significativa neste trabalho. ConcluÃmos que a nefrectomia 5/6 se mostrou eficiente no modelo de insuficiÃncia renal crÃnica, pois promoveu elevaÃÃo sucessiva nos nÃveis de ureia e creatinina sÃricos. A nefrectomia 5/6 promoveu a secreÃÃo colÃnica para Ãgua e eletrÃlitos tornando-se bem evidente em ratos nos grupos 7 e 14 dias pÃs-nefrectomia. A correlaÃÃo muito prÃxima das alteraÃÃes volÃmicas no grupo 7 dias com a secreÃÃo de Ãgua e eletrÃlitos (Na+, k+, Cl-) nos faz deduzir ser a hipervolemia plasmÃtica induzida pela nefrectomia 5/6 o determinante para absorÃÃo e ou secreÃÃo desses Ãons no cÃlon.
The nephrectomy 5/6 is a surgical procedure most commonly used in physiology laboratories to reproduce chronic renal failure due to its reproducibility and practicality. Patients with IR or nephrectomized present hemodynamic disorders such as fluid overload and accumulation of azotÃnicas substances in plasma, which can have serious complications in various organs. The aim of this research was to evaluate the changes that nephrectomy 5/6 can cause colonic permeability of rats to water and electrolytes (Na+,K+,Cl-) after 3,7 and 14 days of renal failure The project was approved by CEUA-UFC protocol with n 11/15. 92 animals were used (male rats Wistar, weighing 280-300 g) divided into three groups 3 days post-nephrectomy 5/6 7-days nephrectomy 5/6 and 14 days after nephrectomy 5 / 6- each group being formed by a SHAM and an experimental. For studies of colonic permeability of water and electrolytes, the animals were anesthetized with urethane, and then subjected to colonic infusion Tyroad + phenol red for 60 min. For all experiments, we monitor hemodynamic parameters (systolic-PAS blood pressure, central venous pressure, PVC, often heart-FC and blood volume- VS) and also biochemical plasma concentrations of urea and creatinine. Our biochemical results of bun and serum creatinine in groups 7 and 14 days confirmed the renal failure after nephrectomy 5/6 (114,8Â1,8dl/ml; 165,6Â7,2dl/ml) e (0,95Â0,02dl/ml; 1,3 0,07dl/ml) respectively. Groups 7 and 14 days post-nephrectomy 5/6 also showed significant blood volume changes (11,12Â0,37 ml) e (15,83Â0,82ml) The group 3 days did not present biochemical or significant hemodynamic results and insignificant colonic secretion of water and electrolytes (Na+,K+,Cl-) Correlation by linear regression curves between the colonic secretion of water and electrolytes in the blood volume in the group 7days performed quite significant in this work. We conclude that the 5/6 nephrectomy proved effective in chronic renal failure model, as promoted successive rise in urea levels and serum creatinine. The nephrectomy 5/6 promoted colonic secretion into water and electrolytes becoming evident in rats in groups 7 and 14 days post-nephrectomy. The close relationship of blood volume changes in group 7 days with the secretion of water and electrolytes (Na+, k+, Cl-) It makes us deduct be plasma hyperglycemia induced by 5/6 nephrectomy the decisive for absorption and secretion of these ions or in the colon.
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Léonard, Clément. "Etude d'une colonne à bulles pour le traitement d'effluents par oxydation en voie humide". Thesis, Aix-Marseille, 2015. http://www.theses.fr/2015AIXM4382.

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L’Oxydation en Voie Humide (OVH) est un procédé dont l’objectif est de dégrader la matière organique contenue dans les eaux usées à l’aide d’une réaction d’oxydation. L'OVH fonctionne à haute pression (10 – 30 MPa) et haute température (373 – 613 K) avec l’oxygène de l’air comme oxydant. Les procédés OVH sont mis en œuvre dans des réacteurs de type colonne à bulles, permettant de maximiser le temps de passage du liquide et le transfert de matière de l’oxygène du gaz vers le liquide, élément clé de l’efficacité du procédé. L’absence de données expérimentales et de corrélations, nécessaires pour l’estimation des paramètres gouvernant le transfert de matière dans les colonnes à bulles fonctionnant dans les conditions d’OVH, est donc pénalisante. Des mesures de rétention de gaz, de diamètre de bulle et d’aire interfaciale en eau claire et en présence d’un polluant (phénol), en conditions non réactives et réactives, ont montré des effets prépondérants de la vitesse superficielle de gaz, de la concentration en polluant et de la saturation du gaz par la vapeur d’eau. La bulle primaire, formée au niveau du distributeur de gaz, et le diamètre de la colonne sont des paramètres essentiels pour l’optimisation du procédé. La mesure du coefficient de transfert de matière, par une nouvelle méthode chimique utilisant l’oxydation du phénol, a montré que celui-ci dépend principalement du diamètre des bulles et des vitesses du gaz et du liquide. Ce travail expérimental est complété par l’établissement de corrélations des paramètres d’intérêt dans les conditions d’OVH, éléments pertinents pour le dimensionnement de procédés OVH fonctionnant en continu
Wet Air Oxidation (WAO) is a process dedicated to degrade the organic matter contained in wastewater with the help of an oxidation reaction. WAO works at high pressure (10 – 30 MPa) and high temperature (373 – 613 K) using oxygen from air as oxidiser. WAO processes are carried out in bubble column reactors in order to maximise both the liquid residence time and the mass transfer of oxygen from the gas to the liquid, one of the key element of the process. The lack of available data and correlations, needed for the prediction of the parameters governing mass transfer in bubble columns working in WAO conditions, is then penalising. Measurements of gas holdup, bubble diameters and interfacial area in clear water and in presence of a pollutant (phenol), in reactive and non-reactive conditions, show major effects of superficial gas velocity, phenol concentration and saturation of the gas by water vapor. The primary bubble, formed at the gas distributor, and the column diameter, are important design parameters for the process optimisation. Measurement of the mass transfer coefficient by a new chemical technique using phenol oxidation shows that it depends primarily on the bubble diameter and on the gas and liquid velocities. This experimental work is completed by the development of correlations of the key parameters in WAO conditions, providing relevant elements for the design of WAO units working in continuous mode
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Glinghammar, Björn. "Toxicological aspects of bile acids and human fecal water on cultered human colon carcinoma cells /". Stockholm, 2001. http://diss.kib.ki.se/2001/91-628-4816-x/.

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LEVANTI, CRISTINA. "Computational fluid dynamics and experimental study of the hydrodynamics of a bubble column and an air-water jet-stirred cell". Doctoral thesis, Università degli Studi di Cagliari, 2013. http://hdl.handle.net/11584/266103.

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A large number of flows encountered in nature and in many industrial processes areintrinsically multiphase flows. The efficiency and the effectiveness of multiphase flow processes strongly depend on the ability to model the fluid flow behaviour. Thus, a robust and accurate description of multiphase flow can lead to an increase in performance, a reduction in cost, and an improvement in safety for engineering systems. In recent years, Computational Fluid Dynamics (CFD) has become an indispensable predictive tool for gathering information to be used for design and optimization for fluid systems. In this thesis the hydrodynamics of two bubbly flow systems, a bubble column and a waterjet-agitated flotation cell (Hydrojet cell), were studied by means of numerical simulations. In order to validate the bubble column CFD simulations Particle Image Velocimetry (PIV) was used. An experimental investigation about bubble size distribution (BSD) along a water jet was carried out by means of image analysis. Because of high gas fraction and high velocity of the air/water streams used to agitate the Hydrojet cell, with the available equipment, no experimental measurements could be done to evaluate the velocity field of the cell. The thesis consists of three parts: theoretical part, bubble column study and Hydrojet cell study. In the theoretical part, first, a summary of fluid dynamics principles and an overview of the principal issues related to multiphase flow modelling were presented. Then a brief introduction to PIV and its application to two phase bubbly flow were given. Finally a review of the principle of the flotation process and its modelling were done in order to highlight the reasons for the low recovery of fine particles. Then the potentialities offered by the use of waterjets to fine particles flotation were presented. In the second part experimental and numerical studies of a bubble column were presented. PIV technique was used to determine the velocity field of a laboratory bubble column. A separation method for multiphase PIV was developed and tested. By means of the proposed method, the acquired mixed-fluid images were processed to obtain two sets of single phase images before PIV analysis. The velocity field was determined using a multi-pass crosscorrelation. Following three-dimensional time-dependent CFD simulations of a lab-scale bubble column were presented. The simulations were carried out using the Euler - Euler approach. Two different multiphase turbulence models, Shear Stress Transport (SST) and Large Eddy Simulation (LES), were tested, and different interfacial closure models reported in the literature were examined. When LES were used to model the turbulence instead of the SST model, much better agreement with the experimental data was found, provided that the drag, lift and virtual mass forces were taken into account. In the third part a preliminary experimental study, carried out in a rectangular flat cell, was presented. It was carried out to investigate the size distribution of bubbles generated by a moderate pressure water jet, by means of image analysis. This study showed the ability of water jets at moderate pressure to break an air stream into small bubbles. Increasing the pressure of the pump, smaller and more uniform bubbles were obtained. Then three-dimensional CFD simulations of the Hydrojet cell are presented. The Hydrojet cell, due to the exceeding computational burden, was simulated as a two-phase (gas-liquid) system, although actually it is a three-phase (gas-liquid-solid) system. Also in this case simulations were carried out using the Euler - Euler approach. The turbulence of the liquid phase was modelled with the SST model. The single reference frame technique was used to describe the movement of the waterjet lance. To achieve a homogeneous aeration in the region near the inlets different inlet velocity and rotational speed were tested. The results gave useful indications about the role of the four principal operating parameters: nozzles diameter, velocity of rotation of the lance, speed of the water jets and then pressure of the pump and inlet air flow rate. What emerges is the need of high rotational speed of the waterjet lance in order to ensure an uniform gas distribution within the mixing zone. This is not possible with the current apparatus. Thus in order to make the system suitable to produce an appropriate environment for the full development of the flotation process it is necessary to modify the system.
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Maquin, Mathilde. "Développement d'un modèle hydrologique de colonne représentant l'interaction nappe - végétation - atmosphère et applications à l'échelle du bassin versant". Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLS286/document.

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Dans le cadre de la modélisation climatique, la représentation du cycle de l'eau des surfaces continentales est primordiale. Actuellement, les "modèles de surface continentale" représentent l'évolution des flux d'eau verticaux dans des colonnes de sol de quelques mètres de profondeur et leur interaction avec l'atmosphère. En revanche, l'interaction avec les nappes de faible profondeur n'est pas prise en compte alors que leur présence influence fortement les flux d'évapotranspiration à l'échelle locale, et, en conséquence, le climat à l'échelle régionale. Une difficulté est que les zones où cette interaction apparaît relèvent d'une échelle inférieure à celle du maillage des modèles de surface continentale. L'objectif de cette thèse est de proposer un modèle qui permette de prendre en compte l'impact des nappes de faible profondeur sur les flux d'évapotranspiration pour les modélisations climatiques à l'échelle globale. La contrainte principale associée relève des temps de calculs, qui doivent être réduits pour permettre la réalisation de simulations sur de grandes échelles de temps et d'espace. Dans ce cadre, un nouveau modèle de colonne de sol est proposé. Une fonction de drainage imposée en bas de colonne permet de reproduire l'évolution temporelle du toit de la nappe, en interaction avec les processus d'infiltration et d'évapotranspiration. Le modèle est testé et validé sur des cas tests académiques simples dans un premier temps, puis sur le cas d'un bassin versant réel dans un second temps (bassin versant du Strengbach, en France). Enfin, une méthodologie basée sur ce modèle de colonne et permettant d'estimer les flux d'évapotranspiration en tenant compte de leur variabilité dans l'espace est introduite. Elle est appliquée à un bassin versant dont la superficie est proche de celle d'une maille classique des modèles de surface continentale (bassin versant du Little Washita, aux États-Unis)
The representation of the water cycle on land surfaces is essential for climate modeling. Nowadays, the "Land Surface Models" (LSMs) represent soil columns of a few meters deep and they simulate the temporal evolution of the vertical water flows and the interaction with the atmosphere. However, the interaction with a near-surface water table is not taken into account although it strongly influences the evapotranspiration fluxes at the local scale, and therefore the climate at the regional scale. This interaction, which occurs at a smaller scale than the grid scale of the LSMs, is difficult to model. The objective of this PhD is to propose a model that incorporates the impact of a near-surface water table on evapotranspiration fluxes for global climate models. The computation time of the model must be small enough to enable simulations at large spatial and temporal scales. In this context, a new soil column model is proposed with a drainage function that is imposed at the bottom of the column. This function aims at reproducing the temporal evolution of the water table level in interaction with both the infiltration and the evapotranspiration fluxes. The model is tested and validated on numerical experiments and on a real catchment (Strengbach, France). A methodology based on this column model is introduced to estimate the evapotranspiration fluxes taking into account their subgrid variability. This methodology is applied to a catchment whose area is similar to the one of a classic grid cell of LSMs (Little Washita, USA)
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7

Lopez-Ibanez, Manuel. "Operational optimisation of water distribution networks". Thesis, Edinburgh Napier University, 2009. http://researchrepository.napier.ac.uk/Output/3044.

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Water distribution networks are a fundamental part of any modern city and their daily operations constitute a significant expenditure in terms of energy and maintenance costs. Careful scheduling of pump operations may lead to significant energy savings and prevent wear and tear. By means of computer simulation, an optimal schedule of pumps can be found by an optimisation algorithm. The subject of this thesis is the study of pump scheduling as an optimisation problem. New representations of pump schedules are investigated for restricting the number of potential schedules. Recombination and mutation operators are proposed, in order to use the new representations in evolutionary algorithms. These new representations are empirically compared to traditional representations using different network instances, one of them being a large and complex network from UK. By means of the new representations, the evolutionary algorithm developed during this thesis finds new best-known solutions for both networks. Pump scheduling as the multi-objective problem of minimising energy and maintenance costs in terms of Pareto optimality is also investigated in this thesis. Two alternative surrogate measures of maintenance cost are considered: the minimisation of the number of pump switches and the maximisation of the shortest idle time. A single run of the multi-objective evolutionary algorithm obtains pump schedules with lower electrical cost and lower number of pump switches than those found in the literature. Alternatively, schedules with very long idle times may be found with slightly higher electrical cost. Finally, ant colony optimisation is also adapted to the pump scheduling problem. Both Ant System and Max-Min Ant System are tested. Max-Min Ant System, in particular, outperforms all other algorithms in the large real-world network instance and obtains competitive results in the smallest test network. Computation time is further reduced by parallel simulation of pump schedules.
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Moul, Ian E. "Environmental contaminants, disturbance and breeding failure at a great blue heron colony on Vancouver Island". Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/29592.

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Great Blue Herons (Ardea herodias) breeding near a pulp mill at Crofton B.C. failed to raise young in 1987 and 1988. Elevated levels of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzo-furans were detected in their eggs. The highest 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) toxic equivalent level observed was 496 ng/kg (wet weight) in 1987 (Elliott et al. 1989). I compared the Crofton colony with a less contaminated colony on Sidney Island in 1988 and 1989. I examined three possible explanations for nesting failure: (i) abnormal nesting behaviour by parents because of contamination, (ii) disturbance by human activities, and (iii) predation by Bald Eagles (Haliaeetus leucocephalus), Northwestern Crows (Corvus caurinus) and Common Ravens (Corvus corax). The Crofton colony was successful in 1989 and 1990. Within the TCDD toxic equivalent range of 34 - 257 ng/kg (1989), I observed no abnormal heron nesting behaviour or reduction in numbers of chicks fledged. In 1988 the herons at Crofton were disturbed repeatedly by human activities. Bald Eagles were observed daily at both Crofton and Sidney Island. The heron colony on Sidney Island failed in 1989 and 1990. The failures on Sidney Island were thought to involve a disturbance by eagles followed by rapid removal of eggs and young chicks at unattended nests by crows and ravens. It is likely that disturbance and predation played a part in the failure at Crofton in 1988, but there remains the possibility that environmental contaminants may have increased the sensitivity of herons to disturbance and predation.
Land and Food Systems, Faculty of
Graduate
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Windt, Benjamin [Verfasser], e Walter [Akademischer Betreuer] Hermanns. "Colon-Biopsien beim Hund : Histopathologie und klinische Befunde in einer retrospektiven Studie / Benjamin Windt ; Betreuer: Walter Hermanns". München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2019. http://d-nb.info/1185978941/34.

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Mhadhbi, Takoua. "Dynamique des pesticides au sein d’un écosystème lagunaire (lagune de Bizerte, Tunisie) : identification des sources de contaminations et processus de transformation des contaminants". Thesis, Montpellier, 2019. http://www.theses.fr/2019MONTG040.

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Le bassin versant de la lagune de Bizerte est occupé par des activités agricoles importantes. L’utilisation des produits phytosanitaires pour traiter les cultures qui entourent ce bassin versant, engendre une détérioration de la qualité des eaux de cet écosystème lagunaire. La surveillance du niveau de pollution dans ces écosystèmes nécessite l’application des approches combinées. Ainsi, dans ce travail une enquête est réalisée afin de déterminer les sources de pollution à cause des activités agricoles et recenser les pesticides employés par les agriculteurs. Pour vérifier la présence des molécules déterminées pendant l’enquête, un diagnostic de la pollution de la colonne d’eau est concrétisé au moyen de deux techniques d’échantillonnage : un échantillonnage ponctuel et un autre passif au moyen des POCIS. Les sédiments sont aussi menacés par ces xénobiotiques, d’où la réalisation d’un screening au niveau de la fraction sédimentaire. Il est pertinent de déterminer le devenir de ces polluants une fois qu’ils sont présents dans l’environnement aquatique. Ainsi, l’étude de leur photodégradation dans la colonne d’eau est achevée dans cette étude. La dégradation de ces polluants peut donner naissance à des sous- produits qui sont plus toxiques que les molécules mères. Une approche écotoxicologique est élaborée dans ce travail pour déterminer la toxicité de ces produits sur une espèce modèle Ostreococcus tauri
The Bizerte Lagoon watershed is surrounded by intense agricultural activities. The use of phytosanitary products to treat the crops that surround this watershed, causes a deterioration of the lagoon water quality. Monitoring the level of pollution in this ecosystem requires the application of combined approaches. Thus, in this work a survey is carried out to determine the sources of pollution due to agricultural activities and to identify pesticides used by farmers. To verify the presence of the molecules determined during the investigation, a diagnosis of water column pollution is carried out using two sampling techniques: grap sampling and passive sampling (POCIS). Sediments are also threatened by these xenobiotics, thus, a screening was carried out in this matrix. It is relevant to determine the fate of these pollutants once they are present in the aquatic environment. Thus, the study of their photodegradation in the water column was carried out. The degradation of these pollutants can give rise to by-products that are more toxic than the parent molecules. An ecotoxicological approach is developed in this work to determine the toxicity of these products on a model species Ostreococcus tauri
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Libri sul tema "Cologne water"

1

Germany), Kerntechnische Gesellschaft (Bonn, e Société française d'énergie nucléaire, a cura di. The European pressurized water reactor, EPR: Proceedings, KTG/SFEN conference, Maritim Hotel Cologne, 19-21 October 1997. Bonn: INFORUM Verlag, 1997.

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Solana Beach Civic and Historical Society, a cura di. La Colonia & Solana Beach spring up from Colonel Ed Fletcher's running water. Solana Beach, Calif: Solana Beach Civic and Historical Society, 2010.

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3

Hegenauer, Jack. La Colonia & Solana Beach spring up from Colonel Ed Fletcher's running water. Solana Beach, Calif: Solana Beach Civic and Historical Society, 2010.

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4

Lockwood, Tower R., e Belmont John S, a cura di. Lee's adjutant: The wartime letters of Colonel Walter Herron Taylor, 1862-1865. Columbia, S.C: University of South Carolina Press, 1995.

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5

Saccoman, Andrea. Le Brigate rosse a Milano: Dalle origini della lotta armata alla fine della colonna "Walter Alasia". Milano: UNICOPLI, 2013.

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6

Parliament, England and Wales. An act for the tryal of Sir Iohn Stowel knight of Bath, David Ienkins Esq., Walter Slingsby Esq., Brown Bushel, William Davenant, ... and Colonel Gerrard. London: Printed by Edward Husband and Iohn Field ..., 1985.

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7

Alasia, Walter. Contro la soluzione politica: Note su capitale, stato, rivoluzione nel contesto odierno : appunti e materiali : tre interventi di un compagno prigioniero delle Brigate Rosse, Colonna Walter Alasia. Guasila [Italy]: Arkiviu-Bibrioteka "T. Serra", 1999.

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Fußball-Bund, Deutscher. ˜Theœ German Football Association's bid for the 2006 FIFA World Cup: Technical description of the stadia : Kaiserslautern - Fritz-Walter-Stadion, Cologne - Muengersdorfer Stadion, Leipzig - Zentralstadion, Leverkusen - Bayerarena, Munchengladbach - Stadion Nordpark, Munich - Olympiastadion, Nuremberg - Frankenstadion, Stuttgart - Gottlieb-Daimler-Stadion. - Appendix B. Frankfurt/Main: German Football Association, 1999.

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Parker, Philip M. The 2007-2012 World Outlook for Perfume, Toilet Water, and Cologne. ICON Group International, Inc., 2006.

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Parker, Philip M. The 2007-2012 Outlook for Perfume, Toilet Water, and Cologne in India. ICON Group International, Inc., 2006.

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Capitoli di libri sul tema "Cologne water"

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Tanaka, Norio, Shiho Ito e Junji Yagisawa. "Flow Structures and Sedimentation Characteristics Around Colony-Type Vegetation at Flood Events". In Advances in Water Resources and Hydraulic Engineering, 981–86. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-89465-0_172.

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Gil, C., R. Baños, J. Ortega, A. L. Márquez, A. Fernández e M. G. Montoya. "Ant Colony Optimization for Water Distribution Network Design: A Comparative Study". In Advances in Computational Intelligence, 300–307. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-21498-1_38.

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Wang, Hui, e Wenjun Wang. "A New Multi-strategy Ensemble Artificial Bee Colony Algorithm for Water Demand Prediction". In Communications in Computer and Information Science, 63–70. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-6473-0_6.

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Diwold, Konrad, Thomas Ruhnke e Martin Middendorf. "Sensor Placement in Water Networks Using a Population-Based Ant Colony Optimization Algorithm". In Computational Collective Intelligence. Technologies and Applications, 426–37. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-16696-9_46.

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Amador-Angulo, Leticia, e Oscar Castillo. "Comparison of the Optimal Design of Fuzzy Controllers for the Water Tank Using Ant Colony Optimization". In Studies in Computational Intelligence, 255–73. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-05170-3_18.

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Dhang, Partho, Philip Koehler, Roberto Pereira e Daniel D. Dye, II. "Ants." In Key questions in urban pest management: a study and revision guide, 77–84. Wallingford: CABI, 2022. http://dx.doi.org/10.1079/9781800620179.0010.

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Abstract This book chapter discusses ants. Because ants live in large nests that can house many thousands to millions of individuals, their collective effect is certainly what causes greatest concern as a force that may destroy or consume large quantities of food or other materials important to humans. In nature, ants perform beneficial functions, preying on pests, aerating soils, moving soil nutrients, and decomposing organic matter, but in urban environments, they can be considered as one of the most destructive urban pests. Ants belong to the order Hymenoptera which also includes bees and wasps, and, like many other hymenopterans, they are social insects with colony duties divided among different castes. Although most ants can bite with their jaws, the ones that cause greater concern are the ones that sting, using a modified ovipositor to inflict pain. Emphasis should be on excluding ants from buildings and eliminating food and water sources. Ants undergo complete metamorphosis, having egg, larval, pupal, and adult stages. Ant management requires diligent effort and the combined use of mechanical, cultural, sanitation, and chemical methods of control.
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Praepanichawat, Chanikarn, Charoenchai Khompatraporn, Chorkaew Jaturanonda e Chiranya Chotyakul. "Water Cycle and Artificial Bee Colony Based Algorithms for Optimal Order Allocation Problem with Mixed Quantity Discount Scheme". In Lecture Notes in Electrical Engineering, 229–39. Berlin, Heidelberg: Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-47200-2_26.

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Jin, Weijia, e Shao Gong. "Research on Network Equilibrium Scheduling Method of Water Conservancy Green Product Supply Chain Based on Compound Ant Colony Algorithm". In Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, 46–61. Cham: Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-50577-5_5.

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Kiran, K., K. Ravi Kumar e K. Chandrasekar. "Optimization of Abrasive Water Jet Machining Parameters of Al/Tic Using Response Surface Methodology and Modified Artificial Bee Colony Algorithm". In Nature-Inspired Optimization in Advanced Manufacturing Processes and Systems, 245–58. First edition. | Boca Raton : CRC Press, 2020. | Series:: CRC Press, 2020. http://dx.doi.org/10.1201/9781003081166-15.

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"4 The Miracle Waters of Cologne". In Elixir, 60–77. Harvard University Press, 2023. http://dx.doi.org/10.4159/9780674293083-005.

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Atti di convegni sul tema "Cologne water"

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Perez, Aldo, Ingo Stadler, Sebastian Janocha, Carolina Ferrando, Giorgio Bonvicini e Georg Tillmann. "Heat recovery from sewage water using heat pumps in cologne: A case study". In 2016 International Energy and Sustainability Conference (IESC). IEEE, 2016. http://dx.doi.org/10.1109/iesc.2016.7569488.

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Neises, Martina, Martin Roeb, Martin Schmu¨cker, Christian Sattler e Robert Pitz-Paal. "Kinetic Investigations of a Two-Step Thermochemical Water-Splitting Cycle Using Mixed Iron Oxides Fixed on Ceramic Substrates". In ASME 2008 2nd International Conference on Energy Sustainability collocated with the Heat Transfer, Fluids Engineering, and 3rd Energy Nanotechnology Conferences. ASMEDC, 2008. http://dx.doi.org/10.1115/es2008-54093.

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A two-step thermochemical cycle for solar hydrogen production using mixed iron oxides as the metal oxide redox system has been investigated. A reactor concept has been developed in which the metal oxide is fixed on multi-channelled honeycomb ceramic supports capable of adsorbing solar irradiation. In the solar furnace of DLR in Cologne coated honeycomb structures were tested in a solar receiver-reactor with respect to their water splitting capability and their long term stability. The concept of this new reactor design has proven feasible and constant hydrogen production during repeated cycles has been shown. For a further optimization of the process and in order to gain reliable performance predictions more information about the process especially concerning the kinetics of the oxidation and the reduction step are essential. To examine the kinetics of the water splitting and the regeneration step a test rig has been built up on a laboratory scale. In this test rig small coated honeycombs are heated by an electric furnace. The honeycomb is placed inside a tube reactor and can be flushed with water vapour or with an inert gas. A homogeneous temperature within the sample is reached and testing conditions are reproducible. Through analysis of the product gas the hydrogen production is monitored and a reaction rate describing the hydrogen production rate per gram ferrite can be formulated. Using this test set-up, SiC honeycombs coated with a zinc-ferrite have been tested. The influences of the water splitting temperature and the water concentration on the kinetics of the water splitting step have been investigated. A mathematical approach for the reaction rate was formulated and the activation energy was calculated from the experimental data. An activation energy of 110 kJ/mole was found.
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Roeb, Martin, Christian Sattler, Ruth Klu¨ser, Nathalie Monnerie, Lamark de Oliveira, Athanasios G. Konstandopoulos, Christos Agrafiotis et al. "Solar Hydrogen Production by a Two-Step Cycle Based on Mixed Iron Oxides". In ASME 2005 International Solar Energy Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/isec2005-76126.

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A very promising method for the conversion and storage of solar energy into a fuel is the dissociation of water to oxygen and hydrogen, carried out via a two-step process using metal oxide redox systems such as mixed iron oxides, coated upon multi-channeled honeycomb ceramic supports capable of absorbing solar irradiation, in a configuration similar to that encountered in automobile exhaust catalytic converters. With this configuration, the whole process can be carried out in a single solar energy converter, the process temperature can be significantly lowered compared to other thermo-chemical cycles and the re-combination of oxygen and hydrogen is prevented by fixing the oxygen in the metal oxide. For the realization of the integrated concept, research work proceeded in three parallel directions: synthesis of active redox systems, manufacture of ceramic honeycomb supports and manufacture, testing and optimization of operating conditions of a thermochemical solar receiver-reactor. The receiver-reactor has been developed and installed in the solar furnace in Cologne, Germany. It was proven that solar hydrogen production is feasible by this process demonstrating that multi cycling of the process was possible in principle.
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Neumann, Andreas, Christian Willsch, Martin Roeb, Daniela Graf e Christian Sattler. "Double-Focus Configuration at DLR Solar Furnace for Operating a Continuous Reactor". In ASME 2006 International Solar Energy Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/isec2006-99042.

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The DLR Solar Furnace in Cologne is a facility that concentrates solar radiation for research experiments. It offers many different possibilities of using concentrated solar radiation to scientists and industrial users. Most of the experiments are from the research fields ‘Solar Chemistry’, ‘Solar Thermal’, and ‘Material Research’. In a recent experiment series the solar thermal hydrogen production is investigated. This experiment is based on a two-step thermochemical water splitting process. In the first step steam is decomposed by a low-valence metal oxide coated on a ceramic support at 800°C, leading to hydrogen and a higher valence state of the metal oxide. In the second regeneration step the oxygen is released from the metal oxide using an inert purge gas and a temperature range of 1100–1200°C. In the new concept two reaction chambers had the task to perform a quasi-continuous process, having one reactor in the hydrogen production mode, and the other in the regeneration mode. The DLR Solar Furnace usually generates a single high flux focal spot. For the new approach we had to realign the concentrator in order to get two focal spots. Both of them had to have the same power and beam shape. Furthermore, a power regulation was necessary for both focal spots, as the two process steps needed different temperature levels and therefore a temperature control option.
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Neises, Martina, Felix Goehring, Martin Roeb, Christian Sattler e Robert Pitz-Paal. "Simulation of a Solar Receiver-Reactor for Hydrogen Production". In ASME 2009 3rd International Conference on Energy Sustainability collocated with the Heat Transfer and InterPACK09 Conferences. ASMEDC, 2009. http://dx.doi.org/10.1115/es2009-90273.

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The transient thermal behavior of two solar receiver-reactors for hydrogen production has been modeled using Modelica/Dymola. The simulated reactors are dedicated to carry out the same chemical reactions but represent two different development stages of the project HYDROSOL and two different orders of magnitude concerning reactor size and hydrogen production capacity. The process itself is a two step thermochemical cycle, which uses mixed iron-oxides as a redox-system. The iron-oxide is coated on a ceramic substrate, which is placed inside the receiver-reactor and serves on the one hand as an absorber for solar radiation and on the other hand as the reaction zone for the chemical reaction. The process consists of a water splitting step in which hydrogen is produced and a regeneration step during which the used redox-material is being reduced. The reactor is operated between these two reaction conditions in regular intervals with alternating temperature levels of about 800 °C for the water splitting step and 1200 °C for the regeneration step. Because of this highly dynamic process and because of fluctuating solar radiation during the day, a mathematical tool was necessary to model the transient behavior of the reactor for theoretical studies. Two models have been developed for two existing receiver-reactors. One model has been set up to simulate the behavior of a small scale test reactor, which has been built and tested at the solar furnace of DLR in Cologne. Results are very promising and show that the model is able to reflect the thermal behavior of the reactor. Another model has been developed for a 100 kWth pilot reactor which was set up at the Plataforma Solar de Almeri´a in Spain. This model is based on the first model but special geometrical features had to be adapted. With this model temperatures and hydrogen production rates could be predicted.
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Goers, Simon, Benjamin Witzel, Johannes Heinze, Guido Stockhausen, Jaap van Kampen, Christof Schulz, Chris Willert e Christian Fleing. "Endoscopic Chemiluminescence Measurements as a Robust Experimental Tool in High-Pressure Gas Turbine Combustion Tests". In ASME Turbo Expo 2014: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/gt2014-26977.

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The development process for gas turbine combustion systems includes single-burner high-pressure combustion tests as an important validation step. In these tests the performance of a combustor is investigated at realistic gas turbine conditions. Measurement techniques that are typically used in these tests include mass flow meters, thermocouples, pressure transducers, and probes for exhaust-gas composition measurements. These measurement techniques, however, do not provide direct information of the flame behavior. Chemiluminescence measurements have proven to being a valuable and robust technique to close this gap [1,2]. This paper summarizes the results of chemiluminescence measurements performed at Siemens full-scale high-pressure single-burner combustion test rigs at the German Aerospace Center (DLR) in Cologne, Germany. To minimize the impact of the measurement system on the experiment, the optical access to the test rigs was provided by a water-cooled endoscopic probe. The probe was located in a side-wall downstream of the burner, viewing upstream towards the burner outlet. The probe was successfully operated up to full engine pressure and flame temperatures of approximately 1900 K. For the detection of the chemiluminescence signal different approaches were applied: • Spectral analyses of the chemiluminescence signal were done by using an USB spectrometer. • For flame imaging up to two intensified CCD cameras were applied. In front of the cameras various combinations of optical filters were installed to selectively record the respective chemiluminescent species (OH*, CH*, CO2*). • For studies with special focus on combustion dynamics an intensified high-speed CMOS camera was used. High-repetition-rate measurements were used for identifying the shapes of flame modes. • Acoustic pressure oscillations inside the combustion chamber were recorded by pressure transducers simultaneously to the camera images. This allows the pressure oscillations to be correlated with flame fluctuations during post-processing [3,4]. Generally, the robustness of endoscopic chemiluminescence measurements was successfully demonstrated in numerous tests at realistic gas turbine conditions. The applied imaging setups provided new information about the connection between the flame position and NOx emissions as well as the correlation of flame fluctuations and pressure oscillations. Hence, they have become a valuable experimental tool to improve the evaluation and understanding of the combustor performance. Future work will focus on further improvement of quantitative evaluations by compensation of line-of-sight image integration, reabsorption of OH* by OH, and beam steering.
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Prasad, T. Devi, Manuel López-Ibáñez e Ben Paechter. "Ant-Colony Optimization for Optimal Pump Scheduling". In Eighth Annual Water Distribution Systems Analysis Symposium (WDSA). Reston, VA: American Society of Civil Engineers, 2008. http://dx.doi.org/10.1061/40941(247)77.

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Maier, Holger R., Angus R. Simpson, W. K. Foong, K. Y. Phang, H. Y. Seah e C. L. Tan. "Ant Colony Optimization for the Design of Water Distribution Systems". In World Water and Environmental Resources Congress 2001. Reston, VA: American Society of Civil Engineers, 2001. http://dx.doi.org/10.1061/40569(2001)375.

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Li, Yuanhai, Amy B. Chan Hilton e Liang Tong. "Development of Ant Colony Optimization for Long-Term Groundwater Monitoring". In World Water and Environmental Resources Congress 2004. Reston, VA: American Society of Civil Engineers, 2004. http://dx.doi.org/10.1061/40737(2004)107.

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de Alencar, Thiago Ribeiro, Jacyro Gramulia Junior e Patricia Teixeira Leite Asano. "OPTIMIZATION OF WATER PUMPING POWER WITH ANT COLONY". In XXXVIII Iberian-Latin American Congress on Computational Methods in Engineering. Florianopolis, Brazil: ABMEC Brazilian Association of Computational Methods in Engineering, 2017. http://dx.doi.org/10.20906/cps/cilamce2017-1323.

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Rapporti di organizzazioni sul tema "Cologne water"

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Needham, Glenn R., Uri Gerson, Gloria DeGrandi-Hoffman, D. Samatero, J. Yoder e William Bruce. Integrated Management of Tracheal Mite, Acarapis woodi, and of Varroa Mite, Varroa jacobsoni, Major Pests of Honey Bees. United States Department of Agriculture, marzo 2000. http://dx.doi.org/10.32747/2000.7573068.bard.

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Objectives: The Israeli work plan regarding HBTM included: (a) producing a better diagnostic method; (b) following infestations during the season and evaluating damage to resistant bees and, (c) controlling HBTM by conventional means under local conditions. For varroa our plans to try novel control (e.g. oil novel control (e.g. oil patties & essential oils) were initially delayed by very low pest populations, then disrupted by the emergence of fluvalinate resistance. We monitored the spread of resistance to understand it better, and analyzed an underlying biochemical resistance mechanism in varroa. The US work plan focused on novel management methods for both mites with an emphasis on reducing use of traditional insecticides due to resistance and contamination issues. Objectives were: (a) evaluating plant essential oils for varroa control; (b) exploring the vulnerability of varroa to desiccation for their management; and (c) looking for biological variation in HBTM that could explain virulence variability between colonies. Although the initial PI at the USDA Beltsville Bee Lab, W.A. Bruce, retired during the project we made significant strides especially on varroa water balance. Subcontracts were performed by Yoder (Illinois College) on varroa water balance and DeGrandi-Hoffman (USDA) who evaluated plant essential oils for their potential to control varroa. We devised an IPM strategy for mite control i the U.S. Background: Mites that parasitize honey bees are a global problem. They are threatening the survival of managed and feral bees, the well-being of commercial/hobby beekeeping, and due to pollination, the future of some agricultural commodities is threatened. Specific economic consequences of these mites are that: (a) apiculture/breeder business are failing; (b) fewer colonies exist; (c) demand and cost for hive leasing are growing; (d) incidences of bee pathogens are increasing; and, (e) there are ore problems with commercial-reared bees. As a reflection of the continued significance f bee mites, a mite book is now in press (Webster & delaplane, 2000); and the 2nd International Conference on Africanized Honey Bees and Bee Mites is scheduled (April, 2000, Arizona). The first such conference was at OSU (1987, GRN was co-organizer). The major challenge is controlling two very different mites within a colony while not adversely impacting the hive. Colony management practices vary, as do the laws dictating acaricide use. Our basic postulates were that: (a) both mites are of economic importance with moderate to high infestations but not at low rates and, (b) once established they will not be eradicated. A novel strategy was devised that deals with the pests concomitantly by maintaining populations at low levels, without unnecessary recourse to synthetic acaricides. Major Conclusions, Solutions, Achievements: A major recent revelation is that there are several species of "Varroa jacobsoni" (Anderson & Trueman 1999). Work on control, resistance, population dynamics, and virulence awaits knowing whether this is a problem. In the U.S. there was no difference between varroa from three locales in terms of water balance parameters (AZ, MN & PA), which bodes well for our work to date. Winter varroa (U.S.) were more prone to desiccation than during other seasons. Varroa sensitivity to desiccation has important implications for improving IPM. Several botanicals showed some promise for varroa control (thymol & origanum). Unfortunately there is varroa resistance to Apistan in Israel but a resistance mechanism was detected for the first time. The Israel team also has a new method for HBTM diagnosis. Annual tracheal mite population trends in Israel were characterized, which will help in targeting treatment. Effects of HBTM on honey yields were shown. HBTM control by Amitraz was demonstrated for at least 6 months. Showing partial resistance by Buckfast bees to HBTM will be an important IPM tactic in Israel and U.S.
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