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Sample records for arnager limestone denmark

  1. Diagenesis of silica-rich mounded chalk, the Coniacian Arnager Limestone, Denmark

    DEFF Research Database (Denmark)

    Buus Madsen, Heine; Stemmerik, Lars; Surlyk, Finn

    2010-01-01

    The Coniacian Arnager Limestone Formation is exposed on the Danish island of Bornholm in the Baltic Sea. It is composed of mound-bedded siliceous chalk, and X-ray diffraction and scanning electron microscopy indicate a content of 30-70% insoluble minerals, including authigenic opal-CT, quartz...... consist of twomicrofacies, spiculiticwackestone and bioturbated spiculitic wackestone, containing 10-22% and 7-12% moulds after spicules, respectively. Subsequent to deposition and shallow burial, dissolution of siliceous sponge spicules increased the silica activity of the pore water and initiated...... precipitated in pore water with low silica activity during maximum burial, probably to depths of 200-250 m. The dissolution of sponge spicules and decomposition of the sponge tissue also resulted in the release of Ba2+, Sr2+,Mg2+, Ca2+ and CO3 2-, facilitating precipitation of barite and dolomite...

  2. Image Analysis and Estimation of Porosity and Permeability of Arnager Greensand, Upper Cretaceous, Denmark

    DEFF Research Database (Denmark)

    Solymar, Mikael; Fabricius, Ida

    1999-01-01

    Arnager Greensand consists of unconsolidated, poorly sorted fine-grained, glauconitic quartz sand, often silty or clayey, with a few horizons of cemented coarse-grained sand. Samples from the upper part of the Arnager Greensand were used for this study to estimate permeability from microscopic im...

  3. Bite traces in a turtle carapace fragment from the middle Danian (Lower Paleocene) bryozoan limestone, Faxe, Denmark

    DEFF Research Database (Denmark)

    Milan, Jesper; Lindow, Bent Erik Kramer; Lauridsen, Bodil Wesenberg

    2011-01-01

    A fragment of a turtle carapace from the Middle Danian bryozoan limestone at the Faxe quarry, eastern Denmark, is identified as a partial costal plate from the carapace of a chelonioid turtle. The fragment bears traces of three separate acts of predation or scavenging. Two circular bite traces...... either alone or in a row of three, are either from sharks or fish. This is the first record of turtles from the Danian bryozoan limestone exposed in Faxe....

  4. The fate of a middle Danian (Lower Paleocene) turtle from the bryozoan limestone of Faxe Quarry, Denmark

    DEFF Research Database (Denmark)

    Milàn, Jesper; Lindow, Bent Erik Kramer; Lauridsen, Bodil Wesenberg

    A piece of turtle carapace from the Middle Danian bryozoan limestone at the Faxe quarry, eastern Denmark, is identified as a partial coastal plate from the carapace of a chelonioid turtle. In addition to being the first record of turtles from the Middle Danian of Denmark, the fragment bears...... evidence of a dramatic taphonomic history comprising traces of three separate acts of predation and/or scavenging. Two circular bite traces measuring 4mm in diameter and situated 2.5cm apart have fractured the carapace and are interpreted as crocodylian predation traces, probably fatal to the turtle...

  5. Denmark

    DEFF Research Database (Denmark)

    Holst, Nicolaj Sivan; Henricson, Ib Lennart

    2015-01-01

    The chapter explains the legal framework concerning transgender and transsexual persons in Denmark, statistics, the procedures and requirements for changing legal sex and/or gender, the legal consequences of the changes as regards rights and duties of the person, and the legal challenges of the r......The chapter explains the legal framework concerning transgender and transsexual persons in Denmark, statistics, the procedures and requirements for changing legal sex and/or gender, the legal consequences of the changes as regards rights and duties of the person, and the legal challenges...

  6. Denmark

    DEFF Research Database (Denmark)

    Tilsted, Hans-Henrik; Ahlehoff, Ole; Terkelsen, Christian Juhl

    2017-01-01

    Interventional cardiology in Denmark has been carried out since the mid 1980s. Interventional cardiology is only performed at a few high-volume centres. Healthcare coverage is universal and is essentially free of charge. Hospitals are mostly publicly owned and financed by fixed budgets and, in part...

  7. Denmark

    DEFF Research Database (Denmark)

    Storgaard, Anette

    2017-01-01

    the chapter is a thorough presentation of the legal positions of children and juvenile offenders in Denmark including procedural as well as material law and practises. The contemporary tense debate on legal rights and consequences is presented and debated critically. Included is also a discussion...... of the role of the age for criminal liability....

  8. Denmark

    DEFF Research Database (Denmark)

    Blach-Ørsten, Mark; Hartley, Jannie Møller; Flensburg, Sofie

    2018-01-01

    In Denmark the public debate on media ethics and accountability has seen an all-time high in recent years, culminating, in 2013, with an update of the common and institutionalised guidelines for press ethics. As recently as the summer 2014, in light of a media hacking scandal, the politicians again...

  9. Denmark

    DEFF Research Database (Denmark)

    Madsen, Peter Hauge; Bjerregaard, E.; Lemming, Jørgen Kjærgaard

    2004-01-01

    After a theoretical outset (Rhodes), the author gives an overview of the Danish regions (history, place in the national / EU-system, administrative organisation), followed by discussions of the intra-regional relations (incl. degree of Europeanisation, local - regional cooperation), the relations...... to the national centre and the supranational centre. This is followed bu a conclussion in which it i.a. is stated, that the proces of Europeanization has streangthned the Dansh regions within Denmark, and that the regions do nt have any federal aspirations....

  10. Face logging in Copenhagen Limestone, Denmark

    DEFF Research Database (Denmark)

    Jakobsen, Lisa; Foged, Niels Nielsen; Erichsen, Lars

    2015-01-01

    high sedimentation rate in a warmer climate. Large scale level differences are explained by post-depositional tectonic activity and glacial disturbance. Local physical and biological variations have affected diagenetic processes, causing minor lateral variations in strength and bed thickness...

  11. Direct Sulfation of Limestone

    DEFF Research Database (Denmark)

    Hu, Guilin; Dam-Johansen, Kim; Wedel, Stig

    2007-01-01

    The direct sulfation of limestone was studied in a laboratory fixed-bed reactor. It is found that the direct sulfation of limestone involves nucleation and crystal grain growth of the solid product (anhydrite). At 823 K and at low-conversions (less than about 0.5 %), the influences of SO2, O-2...... and CO2 on the direct sulfation of limestone corresponds to apparent reaction orders of about 0.2, 0.2 and -0.5, respectively. Water is observed to promote the sulfation reaction and increase the apparent reaction orders of SO2 and O-2. The influence of O-2 at high O-2 concentrations (> about 15...... %) becomes negligible. In the temperature interval from 723 K to 973 K, an apparent activation energy of about 104 kJ/mol is observed for the direct sulfation of limestone. At low temperatures and low conversions, the sulfation process is most likely under mixed control by chemical reaction and solid...

  12. Conceptualization of flow and transport in a limestone aquifer by multiple dedicated hydraulic and tracer tests

    DEFF Research Database (Denmark)

    Mosthaf, Klaus; Brauns, Bentje; Fjordbøge, Annika Sidelmann

    2018-01-01

    behavior including fracture-matrix interaction in hydrogeological units of a limestone aquifer in eastern Denmark was characterized by designing, conducting and interpreting six depth-specific tracer tests involving natural- and forced-gradient conditions with multiple tracers representing different...

  13. Investigations of the properties of dredged limestone fill

    DEFF Research Database (Denmark)

    Foged, Niels; Gordon, Anne

    1999-01-01

    This paper presents the main findings of an integrated study carried out at the Kastrup peninsula reclamation site by Department of Geology and Geotechnical Engineering at the Technical University of Denmark. The purpose of the study was to evaluate homogeneity and engineering properties of dredged...... limestone fill that is pumped ito ponds of the reclamation site. The work utilised a number of geophysical and geotechnical investigation techniques in the field, supplemented with laboratory testing.The study of in-situ electrical resistivities revealed larger variations in the ground conditions than were...

  14. Scaling on a limestone flooring

    Science.gov (United States)

    Carmona-Quiroga, P. M.; Blanco-Varela, M. T.; Martínez-Ramírez, S.

    2012-04-01

    Natural stone can be use on nearly every surface, inside and outside buildings, but decay is more commonly reported from the ones exposed to outdoor aggressively conditions. This study instead, is an example of limestone weathering of uncertain origin in the interior of a residential building. The stone, used as flooring, started to exhibit loss of material in the form of scaling. These damages were observed before the building, localized in the South of Spain (Málaga), was inhabited. Moreover, according to the company the limestone satisfies the following European standards UNE-EN 1341: 2002, UNE-EN 1343: 2003; UNE-EN 12058: 2004 for floorings. Under these circumstances the main objective of this study was to assess the causes of this phenomenon. For this reason the composition of the mortar was determined and the stone was characterized from a mineralogical and petrological point of view. The last material, which is a fossiliferous limestone from Egypt with natural fissure lines, is mainly composed of calcite, being quartz, kaolinite and apatite minor phases. Moreover, under different spectroscopic and microscopic techniques (FTIR, micro-Raman, SEM-EDX, etc) samples of the weathered, taken directly from the buildings, and unweathered limestone tiles were examined and a new mineralogical phase, trona, was identified at scaled areas which are connected with the natural veins of the stone. In fact, through BSE-mapping the presence of sodium has been detected in these veins. This soluble sodium carbonate would was dissolved in the natural waters from which limestone was precipitated and would migrate with the ascendant capilar humidity and crystallized near the surface of the stone starting the scaling phenomenon which in historic masonry could be very damaging. Therefore, the weathering of the limestone would be related with the hygroscopic behaviour of this salt, but not with the constructive methods used. This makes the limestone unable to be used on restoration

  15. Globalizing Denmark

    DEFF Research Database (Denmark)

    Selmer, Jan; Lauring, Jakob

    2013-01-01

    This exploratory article examines the paradox of being open-minded while ethnocentric as expressed in Danish international management practices at the micro level. With a population of 5.4 million, Denmark is one of the smallest of the European countries. The pressure on many small advanced...... to integrate counteracts to some extent the need to maintain openness to differences. Thus, a strong economy and a feeling of smug ethnocentrism in Denmark generate a central paradox in thinking about internationalization in Danish society....

  16. Limestone valib eetilisi firmasid / Virge Lahe

    Index Scriptorium Estoniae

    Lahe, Virge

    2008-01-01

    Endised Hansapanga investeerimisfondide analüütikud hakkavad läbi Limestone fondide pakkuma sotsiaalselt vastutustundlikku investeerimist (Socially Responsible Investing). Kommenteerivad Art Lukas ja Silver Vohu. Vt. samas: Limestone Investment Management AS

  17. Postcolonial Denmark

    DEFF Research Database (Denmark)

    Jensen, Lars

    2016-01-01

    This article begins by providing a brief overview of Danish colonial and imperial history in the tropics, the Arctic and the sub-Arctic. It then discusses how Danish colonialism relates to a broader regional (Scandinavian/Nordic) and pan-European colonial history. From there it moves on to consid...... concludes by looking at critical approaches to Danish colonial history and its legacy in contemporary Danophone literature. ‘Something is rotten in the state of Denmark.’ (William Shakespeare, Hamlet, Act 1, Scene 4)......This article begins by providing a brief overview of Danish colonial and imperial history in the tropics, the Arctic and the sub-Arctic. It then discusses how Danish colonialism relates to a broader regional (Scandinavian/Nordic) and pan-European colonial history. From there it moves on to consider...... Denmark's postcolonial condition, that is, it identifies issues in contemporary Denmark deriving from Danish (and European) colonialism's aftermath. This unfinished business includes contemporary historiography of the migrant other in Danish society, refugee discourse in the public domain, the early...

  18. SODIUM SESQUICARBONATE (AKANG) AND LIMESTONE AS ...

    African Journals Online (AJOL)

    ben

    the fatty product for the limestone catalyst and 78 – 92% for the sodium sesquicarbonate catalyst at equilibrium stage ... trisodiumhydrogencarbonate ..... in solubility of Limestone catalyzed palm Kernel oil monoglyceride in polar and non polar solvents. Mass of. Limestone(g). Polar solvent. Non polar solvent water ethanol.

  19. Structural analysis of superposed fault systems of the Bornholm horst block, Tornquist Zone, Denmark

    DEFF Research Database (Denmark)

    Graversen, Ole

    2009-01-01

    towards the SE and ESE respectively. The Mesozoic faulting was associated with the development of a horst-graben framework in the Bornholm-Skåne segment of the Sorgenfrei-Tornquist Zone. Mesozoic fault subsidence started in the Rønne Graben in the Triassic. In the Jurassic the Arnager-Sose block became...... and the Lobbæk block (new) along with subsidence of the Holsterhus block and renewed subsidence of the Arnager-Sose block. The Mesozoic series are dipping towards the southwest.The Palaeozoic fault systems were associated with two-dimensional plane strain during ENE-WSW and NNE-SSW extension. By contrast...

  20. Why oil sticks to limestone.

    Energy Technology Data Exchange (ETDEWEB)

    Brady, Patrick Vane [Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)

    2011-11-14

    A coordination chemistry analysis of oil-calcite adhesion allows waterflood chemistry controls over enhanced oil recovery from limestones to be understood. The model relies on temperature-dependent surface complexation models of calcite and oil. The primary electrostatic bridges holding oil to calcite are calculated to be [-COO-][>CaOH2+], [-COO-][>COOCa+], [>CaSO4-][-COOCa+] and [-COOCa+][>COO-] (“>” denotes calcite surface groups; “-” denotes polar oil surface groups; Mg2+ can substitute for Ca+2). The [-COO-][>CaOH2+] bridge between oil carboxylate and protonated calcite calcium sites is most sensitive to changes in waterflood chemistry. Model calculations predict that increased levels of Ca+2, Mg+2, and SO4-2, alone or in combination, will increase oil recovery from limestones by decreasing the number of [-COO-][>CaOH2+] bridges. Divalent cations decrease the local interfacial potential by decreasing the net negative charge on oil carboxylate groups; SO4-2 coordinates to protonated calcite calcium sites to decrease charge and electrostatic attraction. Increases in ionic strength should increase adhesion by increasing the net charge on each surface, though the effect will be less on calcite. The model presented here requires no fitting parameters yet accurately reproduces observed oil mobilization trends suggesting the model to be a potentially valuable tool for designing chemistries of waterfloods employed in limestones.

  1. Prostate cancer in Denmark

    DEFF Research Database (Denmark)

    Brasso, K; Friis, S; Kjaer, S K

    1998-01-01

    To review the trends in prostate cancer (PC) incidence and mortality rates in Denmark during a 50-year period.......To review the trends in prostate cancer (PC) incidence and mortality rates in Denmark during a 50-year period....

  2. Theosophy in Denmark

    DEFF Research Database (Denmark)

    Dybdal, René

    2016-01-01

    Theosophy has been on of the major sources for inspiration for the new spiritual movement in Denmark during the 20th Century. In this paper the history of Theosophy in Denmark is described......Theosophy has been on of the major sources for inspiration for the new spiritual movement in Denmark during the 20th Century. In this paper the history of Theosophy in Denmark is described...

  3. Wine production in Denmark

    DEFF Research Database (Denmark)

    Bentzen, Jan Børsen; Smith, Valdemar

    By the end of the former century there were less than 10 commercial vintners producing wine in Denmark. There was widespread acceptance of the view that commercial production of wine in the most northern parts of Europe was impossible. However, the number of commercial wine growers in Denmark grew...... to more than 60 at the end of year 2009 and the Association of Danish Winegrowers now counts more than 1400 members. Denmark can no longer be seen as a non-wine producing country! Formally, the transformation of Denmark to a wine producing country took place in year 2000 when Denmark was accepted...... as a commercial wine producing nation within the European Union. Based on a remarkably detailed micro data set this paper first gives a description of wine production in Denmark and thereafter we address the question whether vineyard characteristics are important for the quality of the wine and/or whether...

  4. Evaluation of Different Modeling Approaches to Simulate Contaminant Transport in a Fractured Limestone Aquifer

    Science.gov (United States)

    Mosthaf, K.; Rosenberg, L.; Balbarini, N.; Broholm, M. M.; Bjerg, P. L.; Binning, P. J.

    2014-12-01

    It is important to understand the fate and transport of contaminants in limestone aquifers because they are a major drinking water resource. This is challenging because they are highly heterogeneous; with micro-porous grains, flint inclusions, and being heavily fractured. Several modeling approaches have been developed to describe contaminant transport in fractured media, such as the discrete fracture (with various fracture geometries), equivalent porous media (with and without anisotropy), and dual porosity models. However, these modeling concepts are not well tested for limestone geologies. Given available field data and model purpose, this paper therefore aims to develop, examine and compare modeling approaches for transport of contaminants in fractured limestone aquifers. The model comparison was conducted for a contaminated site in Denmark, where a plume of a dissolved contaminant (PCE) has migrated through a fractured limestone aquifer. Multilevel monitoring wells have been installed at the site and available data includes information on spill history, extent of contamination, geology and hydrogeology. To describe the geology and fracture network, data from borehole logs was combined with an analysis of heterogeneities and fractures from a nearby excavation (analog site). Methods for translating the geological information and fracture mapping into each of the model concepts were examined. Each model was compared with available field data, considering both model fit and measures of model suitability. An analysis of model parameter identifiability and sensitivity is presented. Results show that there is considerable difference between modeling approaches, and that it is important to identify the right one for the actual scale and model purpose. A challenge in the use of field data is the determination of relevant hydraulic properties and interpretation of aqueous and solid phase contaminant concentration sampling data. Traditional water sampling has a bias

  5. Laser Removal of Protective Treatments on Limestone

    Science.gov (United States)

    Gómez-Heras, M.; Rebollar, E.; Alvarez de Buergo, M.; Oujja, M.; Fort, R.; Castillejo, M.

    This work presents an investigation of the laser removal of polymeric materials acting as consolidants and water-repellents on limestone used on buildings of architectural and artistic value. The removal of the consolidant Paraloid B-72 and the water-repellent product Tegosivin HL-100, applied on samples of Colmenarand Bateig limestone, was studied as a function of the laser wavelength, by using the four harmonics of a Q-switched Nd:YAG laser (1064, 532, 355 and 266 nm). Elimination of the coatings and subsequent surface modifications were monitored through colorimetry, roughness measurements and scanning electron microscopy (SEM). The fundamental laser radiation was effective in removing the treatments, although thermal alteration processes were induced on the calcite crystals of the limestone. The best results were obtained by irradiation in the near UV at 355 nm.

  6. Potential degradation mechanisms of stylolitic limestones

    Science.gov (United States)

    Aly, Nevin; Török, Ákos; Aguilar Sanchez, Asel Maria; Wangler, Timothy

    2017-04-01

    Stylolites are irregular rough surfaces formed due to the pressure-solution process and commonly developed in carbonate stones. Stylolite formation is usually accompanied by the accumulation of insoluble residues i.e. organic matter, oxides and clays on the stylolitic surfaces. The amount and the type of these clays may play a significant role in the deterioration of the host stone. This study presents the characterization of various stylolitic limestones containing different amounts of clays and used extensively as building cladding and decorative stones in Israel and in Hungary. The first case study focuses on two lithotypes from Israel, both of them are biocalcirudite-calcarenite with high amount of bioclasts. Abundance of open stylolites filled partially with organic matter and minor amounts of clays exist in the first lithotype with cream colour. The second lithotype has grey colour and contains organic matter and pyrite dispersed throughout the stone and more concentrated within the stylolites along with clay and dolomite crystal. Both lithotypes exhibit signs of decay just after a few years of exposure. The first studied Hungarian limestone is a red Jurassic carbonate (ammonitico rosso type) that was formed in pelagic marine environment. This wackestone contains abundant pelagic microfossils. The limestone has been used from Roman period in Central Europe in Hungary, Romania and Poland. The stylolites are seen as darker bedding parallel seams containing minor amounts of clay and hematite. Small amount of clay is also found in isolated nodules. The second Hungarian lithotype is also a Jurassic limestone which contains less clay than the previous one. This yellowish-white limestone is strongly cemented and contains red intersecting stylolites that do not follow the bedding planes or stratification. The main aim of this study is to understand and evaluate the damage mechanism of different stylolitic limestones. Samples were exposed to multiple thermal and wet

  7. Literature review, Denmark

    DEFF Research Database (Denmark)

    Vestergaard, Jens; Linneberg, Mai Skjøtt; Nielsen, Robert Green

    2001-01-01

    Gives an overvie of the situation with respect to organic and conversion markets in Denmark based on exsisting literature. The following subjects are covered. National Policies. Agricultural Production. Conversion. Agricultural Marketing......Gives an overvie of the situation with respect to organic and conversion markets in Denmark based on exsisting literature. The following subjects are covered. National Policies. Agricultural Production. Conversion. Agricultural Marketing...

  8. Denmark's National Inventory Report

    DEFF Research Database (Denmark)

    Illerup, J. B.; Lyck, E.; Winther, M.

    This report is Denmark's National Inventory Report reported to the Conference of the Parties under the United Nations Framework Convention on Climate Change (UNFCCC) due by 15 April 2001. The report contains information on Denmark's inventories for all years' from 1990 to 1999 for CO2, CH4, N2O, CO...

  9. Denmark's National Inventory Report

    DEFF Research Database (Denmark)

    Illerup, J. B.; Lyck, E.; Winther, M.

    This report is Denmark's National Inventory Report reported to the Conference of the Parties under the United Nations Framework Convention on Climate Change (UNFCCC) due by 15 April 2001. The report contains information on Denmark's inventories for all years' from 1990 to 1999 for CO2, CH4, N2O, ......, NMVOC, SO2, HFCs, PFCs and SF6....

  10. The Blue Denmark

    DEFF Research Database (Denmark)

    Hansen, Carsten Ørts; Sornn-Friese, Henrik

    This paper makes an important contribution to the discussion about knowledge based localised externalities in the context of shipping and the maritime sector in Denmark. In the paper we ask if there is a national, knowledge‐based maritime cluster configured around the shipowners in Denmark. This ...

  11. Neutron activation analysis of limestone objects

    International Nuclear Information System (INIS)

    Meyers, P.; Van Zelst, L.

    1977-01-01

    The elemental composition of samples from limestone objects were determined by neutron activation analysis to investigate whether this technique can be used to distinguish between objects made of limestone from different sources. Samples weighing between 0.2-2 grams were obtained by drilling from a series of ancient Egyptian and medieval Spanish objects. Analysis was performed on aliquots varying in weight from 40-100 milligrams. The following elements were determined quantitatively: Na, K, Rb, Cs, Ba, Sc, La, Ce, Sm, Eu, Hf, Th, Ta, Cr, Mn, Fe, Co and Zn. The data on Egyptian limestones indicate that, because of the inhomogeneous nature of the stone, 0.2-2 gram samples may not be representative of an entire object. Nevertheless, multivariate statistical methods produced a clear distinction between objects originating from the Luxor area (ancient Thebes) and objects found north of Luxor. The Spanish limestone studied appeared to be more homogeneous. Samples from stylistically related objects have similar elemental compositions while relative large differences were observed between objects having no relationship other than the common provenance of medieval Spain. (orig.) [de

  12. Rainwater quality improvement using zeolite, activated carbon, limestone and preheated 400°C limestone

    Directory of Open Access Journals (Sweden)

    Meilani

    2017-01-01

    Full Text Available Resources of clean water have decreased significantly in recent years, one of the reasons is water pollution. Utilization of rainwater as clean water resource is among the best option, especially in big cities like Jakarta. Excessive rainwater during wet season can be saved and used as the source of clean water during dry seasons. However, rainwater contains some pollutants, thus suitable treatment method should be utilized to improve its quality as clean water for daily needs. This study compared the effectiveness of zeolite, limestone, activated carbon and preheated 400°C limestone as additive to improve the rainwater quality. Results show that both limestone and preheated 400°C limestone improve all the parameters observed, meanwhile both activated carbon and zeolite had shown to have detrimental effect on water conductivity.

  13. LCA Center Denmark

    DEFF Research Database (Denmark)

    Hauschild, Michael Zwicky; Frydendal, Jeppe

    2006-01-01

    As the first country in Europe Denmark established an official centre for Life Cycle Assessments and life cycle approaches as an element of the national IPP (Integrated Product Policy), three years ago. The aim of the centre is to promote and support the use of Life Cycle Assessment and other...... product-oriented environmental tools in companies, to ensure that the LCA efforts is based on a solid and scientific basis, and to maintain the well-established co-operation between all important actors in the LCA field in Denmark. A status is given on the achievements of LCA Center Denmark...

  14. Social Work Education in Denmark

    DEFF Research Database (Denmark)

    Skytte, Marianne

    2005-01-01

    The development of the social work education and the education for social educators in Denmark. The undergraduate programs and the possibilities for further study within social work in Denmark.......The development of the social work education and the education for social educators in Denmark. The undergraduate programs and the possibilities for further study within social work in Denmark....

  15. Effect of limestone particle size on bone quality characteristics of ...

    African Journals Online (AJOL)

    A study was conducted to determine the effect of different limestone particle sizes in layer diets on bone quality characteristics at end-of-lay hens. Calcitic limestone (360 g Ca/kg DM) that is extensively used in commercial poultry diets was obtained from a specific South African source. Limestone particles were graded as ...

  16. Denmark country note

    DEFF Research Database (Denmark)

    Bloksgaard, Lotte; Rostgaard, Tine

    2014-01-01

    , Israel. Altogether, it covers 35 countries. In addition to Israel, these are: Austria, Australia, Belgium, Brazil, Canada, Croatia, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Japan, Lithuania, Luxembourg, Netherlands, New Zealand, Norway, Poland...

  17. Denmark country note 2016

    DEFF Research Database (Denmark)

    Bloksgaard, Lotte; Rostgaard, Tine

    2016-01-01

    . In addition to the new country, these are: Australia, Austria, Brazil, Belgium, Canada, Croatia, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Israel, Italy, Japan, Lithuania, Luxembourg, Malta, Mexico, Netherlands, New Zealand, Norway, Poland, Portugal...

  18. The Öland limestone - A Swedish stone used for more than one thousand years

    Science.gov (United States)

    Schouenborg, Björn; Wickström, Linda; Mikaelsson, Jan

    2016-04-01

    landic limestone was intense even during Hanseatic times (14th to 17th centuries) and it can for example be found as floorings, mantel pieces, baptismal fonts in many German castles and manors. The literature tells us that export to Denmark, Poland and even southern Germany was intense during late medieval ages. This is because a lot of churches were built in Northern Europe at that time. However, the modern industrialised production had to wait until the early 20th century. Today, three companies quarry and process the limestones on a regular basis. They are primarily used for flooring, stairs, crazy stones for gardens, table tops, kitchen tops and, in some cases, also external cladding and paving. The latter only with more durable layers free of clay and open stylolites, so called "core stone" (direct translation). The presentation will show that the Öland limestone covers all aspects and requirements for being a Global heritage resource.

  19. Denmark and UN peacekeeping

    DEFF Research Database (Denmark)

    Jakobsen, Peter Viggo

    2016-01-01

    Denmark became a staunch supporter of UN peacekeeping during the cold war because it simultaneously served its interests and values and this winning combination meant that it relatively quickly became internalized as part of Denmark’s foreign policy identity. Denmark turned its back on UN...... a close relationship to NATO’s great powers make a major Danish return to UN peacekeeping unlikely. © 2016 Informa UK Limited, trading as Taylor & Francis Group....

  20. Radical prostatectomy in Denmark

    DEFF Research Database (Denmark)

    Heering, Mikael; Berg, Kasper Drimer; Brasso, Klaus

    2017-01-01

    treated with RP at six different hospitals in Denmark between 1995 and 2011. Data were extracted from the nationwide DaPCa database. Histopathology reports from the RP specimens were manually reviewed. Date and cause of death were obtained from national registries and cross-checked in patient files...... detection of PCa is indeed undergoing in Denmark despite national recommendations. The Danish national results seem to concur with findings from international single- and multi-institutional reports....

  1. Denmark Wind Energy Programme

    DEFF Research Database (Denmark)

    Shen, Wen Zhong

    2014-01-01

    In this paper, a summary of some ongoing wind energy projects in Denmark is given. The research topics comprise computational model development, wind turbine design, low noise airfoil and blade design, control device development, wake modelling, and wind farm layout optimization.......In this paper, a summary of some ongoing wind energy projects in Denmark is given. The research topics comprise computational model development, wind turbine design, low noise airfoil and blade design, control device development, wake modelling, and wind farm layout optimization....

  2. Consolidation of weathered limestone using nanolime

    OpenAIRE

    Pesce, Giovanni Luca; Morgan, Deborah; Odgers, David; Henry, Alison; Allen, Mollie; Ball, Richard J.

    2013-01-01

    Limestone sourced from Salisbury Cathedral and Bath Abbey (UK) was treated with commercially available nanolime of concentration 25 g/l. The response of the stones to the treatment was studied using a variety of analysis techniques including optical microscopy, electron microscopy, drilling resistance measurement and mercury intrusion porosimetry. Weathered and non-weathered surfaces of both types of stones were compared. All the specimens were characterised before and after the treatment to ...

  3. Energy use in Denmark

    International Nuclear Information System (INIS)

    Schipper, L.; Howarth, R.; Andersson, B.; Price, L.

    1993-01-01

    This paper reviews the evolution of energy use in Denmark since the early 1970s, in order to shed light on the future path of energy use in Denmark, with particular emphasis on the role of energy efficiency. Improvements in end-use energy efficiency reduced primary energy requirements in Denmark by 22% between 1972 and 1988. This change accounts for two thirds of the decline in the ratio of energy use to gross domestic product that occurred during this time: the rest of the decline was caused by changes in the mix of goods and services produced and consumed by the Danes. Total energy savings achieved between 1972 and 1988 in Denmark ranked among the highest measured in any major OECD country. Overall, most of the energy savings in Denmark were brought about through improvements in technology. Short-term changes in consumer behaviour were significant in reducing energy needs for space heating and transport. An important stimulus for improved efficiency was higher energy prices, led in no small part by significant taxes imposed on small consumers of heating oil, electricity and motor fuels. (author). 21 refs, 20 figs, 2 tabs

  4. Arbitration in Denmark

    DEFF Research Database (Denmark)

    Werlauff, Erik

    2008-01-01

    Having lagged behind in its arbitration rules for 30 years, Denmark has become an attractive country in which to conduct arbitration. Denmark now has one of Europe's most modern and streamlined arbitration acts, and if they so wish, the parties can exert a substantial influence on how the case...... is handled. The author, who often acts as arbitrator in Danish and International arbitration cases, will analyse the options which the parties have under the new Danish arbitration act (hereinafter called the AA) for influencing how their case is handled, and thus for making this process more efficient...... the fundamental protection of legal rights. The article concludes by listing 18 specific areas in which autonomy can be used to advantage when pursuing arbitration in Denmark.  ...

  5. Europe in Denmark

    DEFF Research Database (Denmark)

    Atzbach, Rainer

    2017-01-01

    from Western Slavic antetypes. The rapid spread of Baltic Ware over the Eastern part of Denmark does not reflect a Slavic settlement but the adoption of a high quality product for cooking. Second, the art of glass making was nearly unknown before the Renaissance. To help meet the growing demand...... for window panes and glass vessels, German and Venetian gaffers were invited to Denmark. The production they started was ephemeral, however, ceasing after only one generation. Third, the tile stove and the concept of "appartement" consisting of a smoke-free heated living room and separate sleeping chambers...... were imported to Denmark as elements of European medieval court culture. Through a trickling down process they became a common part of daily life in the Renaissance....

  6. Study Groups in Denmark

    DEFF Research Database (Denmark)

    Hjorth, Poul G.

    2007-01-01

    Since 1998 European Study Groups have been held in Denmark, and Danish companies from LEGO and NOVO to very small high-tech firms have participated. I briefly describe the history, the organisation and the format of the Danish Study Groups, and highlight a few problem solutions.......Since 1998 European Study Groups have been held in Denmark, and Danish companies from LEGO and NOVO to very small high-tech firms have participated. I briefly describe the history, the organisation and the format of the Danish Study Groups, and highlight a few problem solutions....

  7. Microbreweries in Denmark

    DEFF Research Database (Denmark)

    Mortensen, Birthe Kofoed; Østergaard Brandt, Sarah

    2015-01-01

    The large breweries in Denmark have existed in more than 150 years. The industry has in recent 10 years experienced a true beer revolution where local entrepreneurs created more than 100 microbreweries, so today there are about 120 breweries in Denmark. One of the reasons why so many microbreweries...... are experiencing success is because of the large breweries high willingness to share their present knowledge and newest research with the microbreweries. Another reason is the Danish consumers’ curiosity, interest and willingness to buy special beers brewed with raw materials from the local nature. One...

  8. Cancer rehabilitation in Denmark

    DEFF Research Database (Denmark)

    Hansen, Helle Ploug; Tjørnhøj-Thomsen, Tine

    2008-01-01

    A fundamental assumption behind cancer rehabilitation in many Western societies is that cancer survivors can return to normal life by learning to deal with the consequences of their illness and their treatment. This assumption is supported by increasing political attention to cancer rehabilitation...... and a growth in residential cancer-rehabilitation initiatives in Denmark (Danish Cancer Society 1999; Government of Denmark 2003). On the basis of their ethnographic fieldwork in residential-cancer rehabilitation courses, the authors examine the new rehabilitation discourse. They argue that this discourse has...

  9. Anaerobic digestion in Denmark

    DEFF Research Database (Denmark)

    Angelidaki, Irini; Ellegaard, L.

    2002-01-01

    Centralized biogas plants (CBP) in Denmark codigest mainly manure, together with other organic waste such as industrial organic waste, source sorted household waste and sewage sludge. Today 22 large scale CBP's are in operation in Denmark and in 2001 they treated approx. 1.2 mio tonnes of manure ...... comprises about 80% of this potential. Special emphasis has been paid to establish good sanitation and pathogen reduction of the digested material, to avoid risk of spreading pathogens when applying the digested manure as fertilizer to agricultural soils....

  10. Science Communication in Denmark

    DEFF Research Database (Denmark)

    Busch, Henrik

    2005-01-01

    This paper was presented during the author?s visit at the Faculty of Human Development of the University of Kobe . The paper is intended to provide the knowledge about science communication in the Nordic countries (in particular in Denmark). The focus in the paper is on (i) examples of new...... and innovative modes of science communication in Denmark and (ii) educational programs for science communicators. Furthermore, emphasis is on the pedagogical ideas behind the initiatives, rather than on thorough descriptions of structures, curricula and evaluations of the projects....

  11. BIM education in Denmark

    DEFF Research Database (Denmark)

    Svidt, Kjeld

    The International Conference on Digital Construction of 2015, Vilnius, Lithuania. See the invited speak ppt. presentation here http://skaitmeninestatyba.lt/files/SKST'15%20skaidr%C4%97s/2_3_Svidt_BIM_education_i_Denmark_Skaitmenine_statyba2015.pdf......The International Conference on Digital Construction of 2015, Vilnius, Lithuania. See the invited speak ppt. presentation here http://skaitmeninestatyba.lt/files/SKST'15%20skaidr%C4%97s/2_3_Svidt_BIM_education_i_Denmark_Skaitmenine_statyba2015.pdf...

  12. Denmark's National Inventory Report 2010

    DEFF Research Database (Denmark)

    Nielsen, Ole-Kenneth; Lyck, Erik; Mikkelsen, Mette Hjorth

    2010-01-01

    This report is Denmark's National Inventory Report 2010. The report contains information on Denmark's emission inventories for all years' from 1990 to 2008 for CO2, CH4, N2O, HFCs, PFCs and SF6, NOx, CO, NMVOC, SO2.......This report is Denmark's National Inventory Report 2010. The report contains information on Denmark's emission inventories for all years' from 1990 to 2008 for CO2, CH4, N2O, HFCs, PFCs and SF6, NOx, CO, NMVOC, SO2....

  13. Calcium Oxalate: A Surface Treatment for Limestone

    Directory of Open Access Journals (Sweden)

    Tody M. Cezar

    1998-05-01

    Full Text Available This paper looks at the artificially induced surface conversion of calcium carbonate to the more durable calcium oxalate. Extensive research is being carried out on wall paintings and marble sculpture at the Opicificio delle Pietre Dure e Laboratori di Restauro in Florence, Encouraged by their work, I have researched the effectiveness of the conversion on English limestones. The treated samples have been compared to untreated samples for appearance, hardness, resistance to acid and alkali, porosity, and durability. The results have been assessed considering ease of use, effectiveness, and the appropriateness of the treatment.

  14. Gender in physics in Denmark

    Science.gov (United States)

    Niss, Kristine; Nordström, Birgitta; Bearden, Ian; Grage, Mette M.-L.

    2013-03-01

    More women than men get a college degree in Denmark. However, Denmark still has very gender-separated labor market, and in physics only 10% of the university professors are women. Measures are needed to get a more balanced gender distribution among university physicists at all levels in Denmark.

  15. Gender in physics in Denmark

    DEFF Research Database (Denmark)

    Niss, Karsten Ulrik; Nordström, B.; Bearden, I.

    2013-01-01

    More women than men get a college degree in Denmark. However, Denmark still has very gender-separated labor market, and in physics only 10 of the university professors are women. Measures are needed to get a more balanced gender distribution among university physicists at all levels in Denmark....

  16. Catalytic and Gas-Solid Reactions Involving HCN over Limestone

    DEFF Research Database (Denmark)

    Jensen, Anker; Johnsson, Jan Erik; Dam-Johansen, Kim

    1997-01-01

    In coal-fired combustion systems solid calcium species may be present as ash components or limestone added to the combustion chamber. In this study heterogeneous reactions involving HCN over seven different limestones were investigated in a laboratory fixed-bed quartz reactor at 873-1,173 K....... The results indicate that heterogeneous oxidation of HCN is important in calciners and fluidized-bed combustors with limestone addition or when burning coals with an ash with a high catalytic activity....

  17. Adipic acid enhanced limestone flue gas desulfurization process - an assessment

    Energy Technology Data Exchange (ETDEWEB)

    Mobley, J.D.; Chang, J.C.S.

    1981-12-01

    Adipic acid, when used as an additive in a limestone FGD system, greatly increases both SO/sub 2/ removal and limestone utilization. Most existing limestone scrubbers would benefit from adipic acid addition without major process changes. No significant operating problems or adverse environmental impacts have been identified. The adipic acid enhanced system is economically attractive. Waste dibasic acids and glycolic acid appear to provide benefits similar to adipic acid at a lower cost.

  18. COPROLITES FROM THE DANIAN LIMESTONE (LOWER PALEOCENE) OF FAXE QUARRY, DENMARK

    DEFF Research Database (Denmark)

    Milàn, Jesper

    2010-01-01

    are attributed to sharks, and large, cylindrical coprolites with longitudinal striations on the surface are identified as crocodile coprolites. Fish and sharks are known from abundant finds of otoliths and teeth in Faxe Quarry, and crocodiles are known from finds of single bones and teeth....

  19. Youth Unemployment, 1978. Denmark.

    Science.gov (United States)

    Ministry of Education, Copenhagen (Denmark).

    This study of measures taken to reduce youth unemployment in Denmark is based on reports from local authorities, county authorities, and labor market boards, and on surveys made by the central government. The first section describes the total efforts made during 1978. The second section describes programs undertaken by the Danish Ministry of Labor…

  20. Medical Spending in Denmark

    DEFF Research Database (Denmark)

    Christensen, Bent Jesper; Gørtz, Mette; Kallestrup-Lamb, Malene

    2016-01-01

    Using full population longitudinal data from merged administrative registers for Denmark, we document that medical spending is highly concentrated in the population, and persistent through time at the individual level. In addition, we provide overviews of institutional details of the Danish health...

  1. Music Streaming in Denmark

    DEFF Research Database (Denmark)

    Pedersen, Rasmus Rex

    This report analyses how a ’per user’ settlement model differs from the ‘pro rata’ model currently used. The analysis is based on data for all streams by WiMP users in Denmark during August 2013. The analysis has been conducted in collaboration with Christian Schlelein from Koda on the basis...

  2. Leaving home in Denmark

    DEFF Research Database (Denmark)

    Nielsen, Rikke Skovgaard

    2015-01-01

    have attracted less attention thus far. This study provides empirical knowledge from Denmark on such differences by comparing Turkish and Somali immigrants, Turkish descendants and Danes. Event history analyses were conducted on extensive Danish registers, estimating Cox regression models for the event...

  3. Between Denmark and Detroit

    DEFF Research Database (Denmark)

    Christensen, Lars K.

    2014-01-01

    In 1919, Ford Motor Company established its first assembly plant on the European mainland in Copenhagen, Denmark. Based on a Fordist productive model, including technology and materials from Detroit, cars were manufactured and exported to most of Northern Europe. It has been claimed that Ford also...

  4. Stroke awareness in Denmark

    DEFF Research Database (Denmark)

    Truelsen, Thomas; Krarup, Lars-Henrik

    2010-01-01

    This is the first study to examine the awareness of major stroke symptoms and stroke risk factors among the general population in Denmark. Early recognition of stroke warning signs and means of reducing stroke occurrence could improve the treatment and prevention of stroke....

  5. Spotlight on VET Denmark

    Science.gov (United States)

    Cedefop - European Centre for the Development of Vocational Training, 2012

    2012-01-01

    This paper presents data on the vocational education and training (VET) in Denmark. VET plays a key role in the Danish strategy for lifelong learning and meeting the challenges of globalisation and technological change. The Danish education and training system comprises a mainstream system providing qualifications at all levels, from compulsory…

  6. Real Estate in Denmark

    DEFF Research Database (Denmark)

    Rimmer, Nina Røhr

    2016-01-01

    A general introduction to buying, owning and selling Property i Denmark. The cost of buying and selling property and the tax implications as well as the general concept of real estate is introduced. The paper includes also a brief introduction to some of the aspects which you should beware of when...

  7. Extreme winds in Denmark

    DEFF Research Database (Denmark)

    Kristensen, L.; Rathmann, O.; Hansen, S.O.

    1999-01-01

    Wind-speed data from four sites in Denmark have been analyzed in order to obtain estimates of the basic wind velocity, defined as the 50-year wind speed (ten minute averages) under standard conditions, i.e. 10 meter over a homogeneous terrain with the roughness length 0.05 m. The sites are Skjern...

  8. Extreme winds in Denmark

    DEFF Research Database (Denmark)

    Kristensen, L.; Rathmann, Ole; Hansen, S.O.

    1999-01-01

    Wind-speed data from four sites in Denmark have been analyzed in order to obtain estimates of the basic wind velocity which is defined as the 50-year wind speed under standard conditions, i.e. ten-minute averages at the height 10 m over a uniform terrainwith the roughness length 0.05 m. The sites...

  9. Mumps resurgence in Denmark

    DEFF Research Database (Denmark)

    St-Martin, Gry; Knudsen, Lisbet Krause; Engsig, Frederik Neess

    2014-01-01

    BACKGROUND: The past decade has witnessed a resurgence of parotitisvirus (mumps) in several countries where seemingly good mumps control otherwise had been achieved through vaccination. Recently detection of mumps has increased in Denmark. OBJECTIVES: To describe the age-specific changes and time...

  10. Educational Governance in Denmark

    Science.gov (United States)

    Moos, Lejf

    2014-01-01

    Denmark has entered global competition by expanding collaboration with European countries, which is profoundly impacting the public sector and school governance. Relations between the state and institutions are transforming from traditional democratic, public-sector models of governance into new forms characterized as corporate and market-driven…

  11. Prostitution in Denmark

    DEFF Research Database (Denmark)

    Stormhøj, Christel; Pedersen, Bodil Maria; Hansen, Kirsten Grønbæk

    2015-01-01

    Prostitution is a worldwide phenomenon, and so are the controversies surrounding it. In Denmark, as in many countries, there is an ongoing public debate about whether it should be seen as a social/political problem, or as a job like any other. The debate takes place within the tension between...

  12. Made in Denmark 2015

    DEFF Research Database (Denmark)

    Toft, Henrik; Fonnesbech-Sandberg, Martin

    2016-01-01

    Denne rapport er en effektanalyse af golftuneringen, Made in Denmark 2015. Rapporten er udfærdiget af to delanalyser - en analyse af tilskuertilfredsheden ved eventen, og en analyse af de turismeøkonomiske effekter, som følge af eventens afholdelse. Derudover giver rapporter nogle referencer...

  13. Anthroposophy in Denmark

    DEFF Research Database (Denmark)

    Dybdal, René

    2016-01-01

    The Anthroposophical worldview has had an significant impact on a range of initiatives and institutions within esoteric thinking in many western countries during teh 20th Century - which is also the case in Denmark. This article gives a brief review over the development of Anthroposophical Societ...

  14. Denmark at a Crossroad?

    DEFF Research Database (Denmark)

    Hoeyer, Klaus

    2016-01-01

    Denmark is regularly portrayed in international science journals as ‘the epidemiologist’s dream’: a country where health data on all citizens can be combined with e.g. information about social or financial position, kinship ties, school performance data as well as tissue samples. Moreover, it can...

  15. Country report Denmark

    DEFF Research Database (Denmark)

    Mogensen, Finn; Breiting, Søren

    2005-01-01

    Quality criteria for the work of Danish schools working with environmental education or education for sustainable development as they can be revealed in documents related to special initiatives like green flag - green school projects and ecoschools. These are described as part of the state...... of environmental education and education for sustainable development in Denmark, and include explicit criteria as well as implicit criteria....

  16. Clinical Supervision in Denmark

    DEFF Research Database (Denmark)

    Jacobsen, Claus Haugaard

    2011-01-01

    on giving and receiving clinical supervision as reported by therapists in Denmark. Method: Currently, the Danish sample consists of 350 clinical psychologist doing psychotherapy who completed DPCCQ. Data are currently being prepared for statistical analysis. Results: This paper will focus primarily...

  17. Wealth & Immigration in Denmark

    DEFF Research Database (Denmark)

    Dreyer, Johannes Kabderian; Wolffsen, Poul; Mortensen, Mia

    2014-01-01

    Applying newly developed methods this paper quantifies human capital in Denmark and analyzes highly qualified immigration as a potential source of wealth generation. In order to quantify human capital, we use the methodology of Lettau and Ludvigson (2001, 2004), Zhang (2006) and Dreyer et al. (2013...

  18. Chernobyl accident and Denmark

    International Nuclear Information System (INIS)

    1986-12-01

    The report describes the Chernobyl accident and its consequences for Denmark in particular. It was commissioned by The Secretary of State for the Environment. Volume 2 contains copies of original documents issued by Danish authorities during the first accident phase and afterwards. Evaluations, monitoring data, press releases, legislation acts etc. are included. (author)

  19. Denmark Wind Energy Programme

    DEFF Research Database (Denmark)

    Shen, Wen Zhong

    2015-01-01

    In this chapter, a summary of some ongoing wind energy projects in Denmark is given. The research topics comprise computational model development, wind turbine (WT) design, low-noise airfoil and blade design, control device development, wake modelling and wind farm layout optimization....

  20. Oceanology in Denmark

    Science.gov (United States)

    1974-12-01

    population as small as that of Leningrad or the San Francisco Bay area. Like the little Mermaid , Denmark always looks to the sea. ,i It 12 DANISH...project -- called the Belt Project -- %has inaugurated in 1973 to examine the exchange of water through the Sound, the Great Belt and the Little Belt in

  1. Denmark. [CME Country Reports].

    Science.gov (United States)

    Council of Europe, Strasbourg (France). Documentation Center for Education in Europe.

    According to an agreement between the parties of the labour market and the Ministry of Labour, the immigration of foreign workers into Denmark takes place on a quota basis and conforms to a series of regulations, including a rule that the foreign worker, prior to departing from his country, must have made contract arrangements for his job. This…

  2. Country Report Denmark

    DEFF Research Database (Denmark)

    Savin, Andrej

    The ePrivacy Directive has been implemented in Denmark through a range of legislative instruments, beginning with the Act on Electronic Communications and Services but leading into more important Executive Order on Provision of Electronic Services and the Cookie Order. This structure could...

  3. Suburban development in Denmark

    DEFF Research Database (Denmark)

    Bech-Danielsen, Claus

    2013-01-01

    In this paper I focus on current projects and activities aiming at renewal and revitalisation of Danish suburban areas. In the last five years several activities have been initiated in order to discuss possibilities and strategies for the future development of the suburban areas in Denmark. A Thi...

  4. Mechanical Analysis Of Limestone In Jaya, Lhong, And Lhoknga

    Directory of Open Access Journals (Sweden)

    Raihan .

    2012-09-01

    Full Text Available Research about mechanical analysis of limestone in District Jaya, Lhong, and Lhoknga has been done from Dec. 2011 to Mei 2012. This study aim is to classify the limestones based on physical and mechanical tests as well as identify opportunities limestone utilization in accordance with the SII 0378-80 as a condition of quality natural stone for building. Research have been done by testing compressive strength, modulus Young, wear, specific gravity, porosity, and absorption. The result shows that the limestones are qualified natural stone for building the foundation, curbstone, stone and ornamental stone or paste.

  5. Citizenship Education in Denmark

    Directory of Open Access Journals (Sweden)

    Sevgi Coşkun KESKİN

    2013-05-01

    Full Text Available Many countries in the world refer to the social studies and history program to achieve the objective training a good citizen according to its own structure and approach. Denmark is one of these countries. For this purpose Denmark aims to educate individuals who are respectful to the values of community, actively participate in the democratic society and contribute to the development of living community. In this context, the content of Social Studies Program in Denmark forms such as freedom of thought, democracy, ideology, policy and constitutional issues. In recent years in our country makes many applications and project that is based to citizenship education by the Ministry of Education. To shed light on these studies and bring recommendations, social studies and history curriculum of Denmark carrying out citizenship education very seriously is investigated in terms of dimensions of goals, content, learning and teaching process and evaluation.This study is limited with social studies lesson in 7th-9th class and history lesson in 3th-9th class which is applied in Odense of Denmark. In this study it is examined metioned the programs by document analysis. The Programs are obtained reaching the country’s Education Ministry sources. The documents which were written Danish language are translated into first English and then Turkish language. In the meantime it is receieved the support for translation fromDanish programs professionals and teachers where it is needed. In addition to data collection, the researcher is observed participating various course activities.According to results of analysis of the data, these findings are reached: It is often emphasized on concept of democracy, freedom, and respect in citizenship education in Denmark. It is intended to give the students required the rules and values for participation in the democratic life and it is attempted to be given approach that the students have a right to say their ideas freely and to

  6. Modeling contaminant plumes in fractured limestone aquifers

    DEFF Research Database (Denmark)

    Mosthaf, Klaus; Brauns, Bentje; Fjordbøge, Annika Sidelmann

    Determining the fate and transport of contaminant plumes from contaminated sites in limestone aquifers is important because they are a major drinking water resource. This is challenging because they are often heavily fractured and contain chert layers and nodules, resulting in a complex transport...... model. The paper concludes with recommendations on how to identify and employ suitable models to advance the conceptual understanding and as decision support tools for risk assessment and the planning of remedial actions....... behavior. Improved conceptual models are needed for this type of site. Here conceptual models are developed by combining numerical models with field data. Several types of fracture flow and transport models are available for the modeling of contaminant transport in fractured media. These include...... the established approaches of the equivalent porous medium, discrete fracture and dual continuum models. However, these modeling concepts are not well tested for contaminant plume migration in limestone geologies. Our goal was to develop and evaluate approaches for modeling the transport of dissolved contaminant...

  7. The Portuguese Lioz, a Monumental Limestone

    Science.gov (United States)

    Silva, Zenaide

    2017-04-01

    Lioz is a microcrystalline limestone which occurs in Portugal and outcrops in the Lisbon area and its neighboring counties Oeiras, Pero Pinheiro, Lameiras. The rock is whitish to light and dark pink and contains 120 million years old rudists fossils. This fossiliferous content imprints a decorative aspect to the rock contributing to its very wide use as construction material and its favorite use in churches and official monuments making it the Royal Stone in Portugal along the XVII and XVIII centuries. Lisbon has the best exposition of Lioz as a fundamental stone in several monuments, the best examples being the Jeronimos Monastery, the Belém Tower, the Cultural Center in Belém and many old churches spread in Lisbon area. Among the latter the Jesuit Church of São Roque is a special example. The fact that the rock stratigraphic sequence allows the different rock colors as white, light and dark pink and a yellow facies variety in a local occurrence (Negrais yellow) makes it a special source for decorative patterns that can be found in a few churches in Lisbon, Évora, Mafra exhibiting "embutidos" technique, of indian origin and inspired on contemporaneous Italian churches. Mafra is the place where a monumental architectural set, composed by three integrated constructions, was built in the XVIII century by king D.João V using Lioz limestone as the main rock material, in all available colors. Along the XVII and XVIII centuries, the rock was transported to some portuguese colonies, mainly as ballast to improve the navigability of the boats, and used at the destinations as construction material for monuments, official buildings and churches. Brazil and especially Salvador, in Bahia, is the best example of that, where Lioz is beautifully exposed in monuments and as true art in many churches where the Portuguese or Italian influences are very strong. All these facts make the Portuguese Lioz Limestone as very representative of the Heritage present in Portugal and its

  8. Litho-facies changes in Ewekoro limestone using Schlumberger ...

    African Journals Online (AJOL)

    Geoelectric investigations of litho-facies changes in Ewekoro limestone were carried out using Schlumberger vertical electrical sounding technique to delineate the vertical and lateral limestone deposit based on maximum current electrode separation of 1.0 km. The data was interpreted using conventional partial ...

  9. Exploration for limestone deposit at Onigbedu, South–Western Nigeria

    Directory of Open Access Journals (Sweden)

    Oyedele Kayode F.

    2016-09-01

    Full Text Available The Onigbedu limestone deposit was investigated using the aeromagnetic data, resistivity soundings and borings with the aim of characterizing the limestone deposit and estimating its reserves. The subsurface structural features and depth to basement were identified with the analysis of aeromagnetic data. Twenty nine boreholes were drilled for subsurface appraisal and correlation of the limestone deposit. Eighty nine Vertical Electrical Sounding (VES were acquired using the Schlumberger array. The results showed NE-SW trending lineaments that segmented the limestone. Depth to basement varied from 144.2 m to 1090 m. The VES results showed four to six layers indicating the topsoil (7-315 Ωm, clay (2-25 Ωm, shale (6-31 Ωm, limestone (20-223 Ωm, sandstone (>200 Ωm and sandy materials. The VES results correlated well with the lithological unit delineated from the borehole. The overburden thickness ranged from 3.3 m to 28 m, while the limestone thickness varies between 18.1 m and 48.3 m. The limestone reserve was estimated at 1.9 × 109 t. This study concluded that the study area had vast occurrence of the limestone deposits, which would be of economic importance, if exploited.

  10. The use of limestone powder as an alternative cement replacement ...

    African Journals Online (AJOL)

    This research paper examines the effects of partial substitution of Portland cement clinker with limestone addition on the physical and chemical properties of cement paste and hardened mortar in two ranges of blain fineness values. Laboratory tests were conducted on limestone and clinker samples before used for the ...

  11. Short Communication: Comparative effect of snail shell, limestone ...

    African Journals Online (AJOL)

    Short Communication: Comparative effect of snail shell, limestone and oyster shell as sources of dietary calcium on performance and egg quality characteristics of laying. ... egg production, internal and external qualities of eggs of hens. The 6-week ... Key words: Laying hens, oyster shell, limestone, snail shell, egg quality ...

  12. Geochemistry of the paleocene limestones of ewekoro formation ...

    African Journals Online (AJOL)

    Geochemistry of the paleocene limestones of ewekoro formation, eastern Dahomey Basin, southwestern Nigeria: implication on provenance and depositional ... Ratios of La/Sc, La/Co, Th/Co, Th/Cr, Cr/Th and Th/Sc suggested that the terrigenous inclusions in these limestones were derived mainly from intermediate to felsic ...

  13. Chemical Analysis of Some Limestone Samples from the Middle Belt ...

    African Journals Online (AJOL)

    Abstract. Chemical analysis of fifteen (15) limestone samples, 13 of which were locally sourced, was carried out using gravimetric as well as flame emission and uv- visible spectroscopic methods. The range of parameters ... and some other filler applications. Keywords: Industrial, Ink, Limestone, Local Source, Spectroscopy.

  14. [Analysis of trace elements in limestone for archeological functions

    Energy Technology Data Exchange (ETDEWEB)

    Blanc, A. [Lab. de Recherche des Monuments Historiques, Champs-sur-Marne (France); Holmes, L.; Harbottle, G. [Brookhaven National Lab., Upton, NY (US). Chemistry Dept.

    1998-12-31

    Numerous quarries in the Lutetian limestone formations of the Paris Basin provided stone for the building and the decoration of monuments from antiquity to the present. To determine the origin of stone used for masonry and sculptures in these monuments, a team of geologists and archaeologists has investigated 300 quarries and collected 2,300 samples. Petrographic and paleontologic examination of thin sections allows geologists to distinguish Lutetian limestones from Jurassic and Cretaceous limestones. Geologists also seek to formulate hypotheses regarding the origin of Lutetian limestones used for building and sculpture in the Paris region. In the search for the sources of building and sculptural stone, the analytical methods of geologists are limited because often several quarries produce the same lithofacies. A new tool is now available, however, to attack questions of provenance raised by art historians. Because limestones from different sources have distinctive patterns of trace-element concentrations, compositional analysis by neutron activation allows one to compare building or sculptural stone from one monument with stone from quarries or other monuments. This analytical method subjects a powdered limestone sample to standard neutron activation analysis procedures at Brookhaven National Laboratory. With the help of computer programs, the compositional fingerprints of Lutetian limestones can be determined and stored in a database. The limestone database contains data for approximately 2,100 samples from monuments, sculptures and quarries. It is particularly rich in samples from the Paris Basin.

  15. Kinetic Study of Calcination of Jakura Limestone Using Power Rate ...

    African Journals Online (AJOL)

    investigation into kinetics of calcinations of some large commercial deposits of limestone in Nigeria. The study is aimed at finding kinetic parameters for the purpose of energy saving, lime kiln design, modeling and simulation of lime kiln. In this study, kinetic of Jakura limestone calcination process using power rate law has ...

  16. Effect of limestone particle size on egg production and eggshell ...

    African Journals Online (AJOL)

    Different limestone particle sizes had no effect on any of the tested egg production and eggshell quality parameters. These results suggested that larger particles limestone are not necessarily essential to provide sufficient Ca2+ to laying hens for egg production and eggshell quality at end-of-lay, provided that the dietary Ca ...

  17. Technology Museums in Denmark

    DEFF Research Database (Denmark)

    Søndergaard, Morten Karnøe

    2012-01-01

    within wind power technology. Finally special attention is devoted to the Danish Technological Museum. A museum which is the oldest and most elaborate of all the technology museums. The museum covers virtually every technological breakthrough with any relevance in a Danish section, with a special focus......This article presents an exhibit review of some of the major technology museums in Denmark. First comes an introduction to the Danish museum ”landscape”. Second a total of six museums and their technology focused exhibits are presented. Among the museums are the Fisheries and Maritime Museum...... in Esbjerg, housing one of the most impressive and representative exhibitions on the technology behind the strong Danish maritime sector. Another museum being mentioned is the Energy Museum, which covers the background for some of the major breakthroughs performed in Denmark within this area; particularly...

  18. School gardens in Denmark

    DEFF Research Database (Denmark)

    Dyg, Pernille Malberg

    2016-01-01

    Studies show that school gardening helps children enhance their understanding of science and promotes their interaction with the environment gaining historical, cultural and ecological understandings (Dyg 2014; Chenhall 2010; Green 2013; Johnson 2012; Sloan 2013; McCarty 2010; Hess & Trexler 2011......). School gardens are sprouting in rural and urban areas across Denmark. This case study research sheds new light on various school garden models under the Gardens for Bellies program in Denmark, including school-, community-based and central school gardens. This study aims to document the organization...... of school gardens, which is not studied in international research. It also analyses immediate effects according to pupils and other stakeholders. The research is based on five explorative case studies, involving observations and interviews. The findings show that school gardens open up opportunities...

  19. Rickettsioses in Denmark

    DEFF Research Database (Denmark)

    Ocias, Lukas Frans; Jensen, Bo Bødker; Villumsen, Steen

    2018-01-01

    by ticks. In Denmark, rickettsiae are known as a cause of imported travel-related infections, but are also found endemically in ticks across the country. Data are, however, lacking on the geographical origin and clinical features of diagnosed cases. In this study, we have examined the travel history...... and clinical features of two groups of patients; 1) hospital-patients diagnosed with rickettsioses in the years 2010-2015 and 2) patients from primary health care (PHC) centers in Denmark having demonstrated anti-rickettsia antibodies in the years 2012-2015. The patients were identified using the Danish...... telephone interviews with PHC centers. Of the hospital patients, 91% (78/86) had a history of international travel 14 days prior to symptom start, with most having imported their infection from southern Africa, South Africa in particular (65%), and presenting with a clinical picture most compatible...

  20. Criminal Law in Denmark

    DEFF Research Database (Denmark)

    Langsted, Lars Bo; Garde, Peter; Greve, Vagn

    resource for criminal lawyers, prosecutors, law enforcement officers, and criminal court judges handling cases connected with Denmark. Academics and researchers, as well as the various international organizations in the field, will welcome this very useful guide, and will appreciate its value in the study......Derived from the renowned multi-volume International Encyclopaedia of Laws, this book provides a practical analysis of criminal law in Denmark. An introduction presents the necessary background information about the framework and sources of the criminal justice system, and then proceeds...... to a detailed examination of the grounds for criminal liability, the justification of criminal offences, the defences that diminish or excuse criminal liability, the classification of criminal offences, and the sanctions system. Coverage of criminal procedure focuses on the organization of investigations, pre...

  1. Nutritional rickets in Denmark

    DEFF Research Database (Denmark)

    Beck-Nielsen, Signe; Jensen, Tina Kold; Gram, Jeppe

    2009-01-01

    INTRODUCTION: This study describes clinical and biochemical characteristics of nutritional rickets and risk factors at diagnosis among children living in Denmark. All medical records from patients with rickets referred to or discharged from hospitals in Southern Denmark from 1985 to 2005 were...... identified by register search. MATERIALS AND METHODS: Patients included were younger than 15 years of age and fulfilled the diagnostic criteria of primary, nutritional rickets. A total of 112 patients with nutritional rickets were included: 29 were of ethnic Danish origin, and 83 were immigrants. RESULTS...... for 73% of all cases presenting with hypocalcemic seizures, but biochemically, they did not have more severe rickets. Of patients diagnosed before the age of 4 years, 45% were ethnic Danish. In early childhood, insufficient or no vitamin D supplementation was given in 88% of all cases. Among immigrant...

  2. Civil Procedure In Denmark

    DEFF Research Database (Denmark)

    Werlauff, Erik

    The book contains an up-to-date survey of Danish civil procedure after the profound Danish procedural reforms in 2007. It deals with questions concerning competence and function of Danish courts, commencement and preparation of civil cases, questions of evidence and burden of proof, international...... procedural questions, including relations to the Brussels I Regulation and Denmark's participation in this Regulation via a parallel convention with the EU countries, impact on Danish civil procedure of the convention on human rights, preparation and pronouncement of judgment and verdict, questions of appeal...... scientific activities conducted by the author, partly based on the author's experience as a member, through a number of years, of the Danish Standing Committee on Procedural Law (Retsplejeraadet), which on a continuous basis evaluates the need for civil procedural reforms in Denmark, and finally also based...

  3. Bioethics in Denmark

    DEFF Research Database (Denmark)

    Nielsen, Morten Ebbe Juul; Andersen, Martin Marchman

    2014-01-01

    This article examines two current debates in Denmark-assisted suicide and the prioritization of health resources-and proposes that such controversial bioethical issues call for distinct philosophical analyses: first-order examinations, or an applied philosophy approach, and second-order examinati......This article examines two current debates in Denmark-assisted suicide and the prioritization of health resources-and proposes that such controversial bioethical issues call for distinct philosophical analyses: first-order examinations, or an applied philosophy approach, and second......-order examinations, what might be called a political philosophical approach. The authors argue that although first-order examination plays an important role in teasing out different moral points of view, in contemporary democratic societies, few, if any, bioethical questions can be resolved satisfactorily by means...... of first-order analyses alone, and that bioethics needs to engage more closely with second-order enquiries and the question of legitimacy in general....

  4. Energy policy in Denmark

    Energy Technology Data Exchange (ETDEWEB)

    Lidegaard, M.

    2012-12-15

    Denmark has a long tradition of active energy policy, initiated by the first oil crisis in 1973. Over the years, numerous actions have been taken on the basis of a broad consensus in the Danish Parliament - both in order to reduce the energy consumption and in order to increase the share of renewable energy. Now, the cornerstones for the Danish energy future have also been laid. The Danish Government has set the long-term goal to abandon fossil fuels by 2050. An important milestone was reached in March 2012 with an Energy Agreement for the period 2012-2020 - again based on a broad consensus in the Danish Parliament. This Agreement contains a wide range of ambitious initiatives, bringing Denmark a good step closer to the target of 100% renewable energy. In the present publication, a selection of past and present Danish energy policies is presented, together with the results achieved in terms of energy savings, use of renewables etc. (LN)

  5. Metal Detecting in Denmark

    DEFF Research Database (Denmark)

    Dobat, A.S.

    2016-01-01

    Since the early 1980s, metal detector surveying conducted by non-professional volunteers (amateur archaeologists) has contributed significantly to archaeological research and heritage practice in Denmark. Metal detecting has always been legal in Denmark, and official stakeholders have from...... the beginning of metal detector archaeology pursued a liberal model, focusing on cooperation and inclusion rather than confrontation and criminalization. Like no other surveying method, the metal detector has contributed to increasing enormously the amount of data and sites from metal-rich periods. Virtually...... all of the spectacular and ground-breaking discoveries of the past decades are owed to metal detectors in the hands of amateur archaeologists. In order to serve as a contribution to the discussion on the upsides and downsides of liberal metal detector archaeology, this article addresses mainly three...

  6. Corporate Bonds in Denmark

    DEFF Research Database (Denmark)

    Tell, Michael

    2015-01-01

    Corporate financing is the choice between capital generated by the corporation and capital from external investors. However, since the financial crisis shook the markets in 2007–2008, financing opportunities through the classical means of financing have decreased. As a result, corporations have...... to think in alternative ways such as issuing corporate bonds. A market for corporate bonds exists in countries such as Norway, Germany, France, the United Kingdom and the United States, while Denmark is still behind in this trend. Some large Danish corporations have instead used foreign corporate bonds...... markets. However, NASDAQ OMX has introduced the First North Bond Market in December 2012 and new regulatory framework came into place in 2014, which may contribute to a Danish based corporate bond market. The purpose of this article is to present the regulatory changes in Denmark in relation to corporate...

  7. Electricity supply in Denmark

    International Nuclear Information System (INIS)

    1995-08-01

    Electric power was introduced in Denmark in 1891. Recently, the development of the Danish electricity supply industry has been influenced by a number of political measures aiming at a cleaner environment. The booklet gives a general introduction to the industry in Denmark. It reflects the actual supply situation and looks at the future as well as giving a survey of the historical and political background. In addition to relevant statistics, brief information is given on national energy balance, consumption, costs and pricing, distribution and transmission, end-use efficiency, electric power generation, imports and exports, wind power, cogeneration and district heating, pollutive emission, planning and Danish energy policy. There is also a list of useful addresses. (AB)

  8. Developments in Denmark

    International Nuclear Information System (INIS)

    Pedersen, M.

    1992-01-01

    The photocopies of overheads with relevant data illustrate the production, foreign trade and consumption of electric power in Denmark during 1990 and 1991 and prices and taxes for 1990-1992. The structure of electric power production and supply is demonstrated. Currently, there are 12 electricity companies (four of which are integrated) and 107 distribution companies in Denmark. An active debate is now taking place on future structure. The main questions are related to the possible fusion of the electricity companies, and amalgamation of distribution companies and/or coordination/cooperation with district heating and gas distribution. These questions are expanded in note form. Some of these considerations will be strongly influenced by future developments within the European Community, it is explained. (AB)

  9. Hydrogen Chloride Reaction with Lime and Limestone

    DEFF Research Database (Denmark)

    Erik Weinell, Claus; Jensen, Peter I.; Dam-Johansen, Kim

    1992-01-01

    The capacity of solid slaked lime and limestone for binding HCl from a gas phase has been investigated in the temperature range 60-1000 °C. The binding capacity is largest in the range 500-600 °C. However, for slaked lime in the presence of water, a large binding capacity is observed also below 150...... °C. This is ascribed to the formation of a partially liquid product phase. At temperatures exceeding 500 °C the binding capacity is limited by chemical equilibrium between gas and solid. For the range of properties studied the binding capacity is independent of particle size and only depends slightly...... on specific surface area. The kinetics of the binding reaction is governed by diffusion in the solid phase which is proved to follow an unreacted grain-core model. Diffusion coefficient for mass transport in the grain is reported for the temperature range 80-250 °C....

  10. Carabidae of an Active Limestone Quarry

    Directory of Open Access Journals (Sweden)

    Lucie Nováková

    2014-01-01

    Full Text Available In 2012, a research was conducted on Carabid beetles in the active limestone quarry of Mokrá-Horákov. Collections were carried out on quarry terraces and quarry edges using pitfall traps. A total of 37 species with a total number of 197 specimens were captured. The most abundant species was Cicindela sylvicola (34 specimens which is protected under Decree No. 395/1992 Coll. as amended by Decree No. 175/2006 Coll., other detected species protected by this Decree included C. campestris (28 specimens and Cylindera germanica (26 specimens which also belongs to the category of vulnerable under the Red List of Threatened Species of the Czech Republic. The quarry is mostly settled by eurytopic species preferring open habitats. Species that require unshaded habitats and species indifferent to shading occurred especially on the quarry terraces and on its outskirts. Species of shaded habitats were not reported.

  11. The forest Gribskov, Denmark

    DEFF Research Database (Denmark)

    Overballe-Petersen, Mette V; Raulund-Rasmussen, Karsten; Buttenschøn, Rita M.

    2014-01-01

    valuable when working with forest management, conservation and restoration. Integrating the legacies of past disturbances-natural as well as anthropogenic-into conservation and management strategies is likely to favour natural values and ecosystem services. A case-study in Gribskov, Denmark, using...... palaeoecological data and historical source materials explores the lessons learned from the past and leads to the suggestion of a conceptual model of how information from the past can increase understanding of long-term ecological processes....

  12. Graduation in Denmark

    DEFF Research Database (Denmark)

    Warburg, Margit

    2009-01-01

    all the characteristics of a rite of passage. The graduates wear a traditional cap with a cross as cockade emblem; this special cross is a symbol of Denmark. For graduates of non-Christian background, alternative cockade emblems are available, e.g. a Star of David or a crescent; this shows...... that it is more meaningful to analyse this ritual ride as an expression of Danish civil religion....

  13. Management development in Denmark

    DEFF Research Database (Denmark)

    Leth, Camilla; Hjalager, Anne-Mette; Holt Larsen, Henrik

    2003-01-01

    be published in books, journals and newspaper articles. Hopefully the findings of thelarge European project will thus affect the way in which educational institutions andorganizations manage the `Europeanization' of management development.The present report solely describes significant findings from...... the questionnaire studyconducted in Denmark. Two hundred and two managers have participated, that is two fromeach organization. We thank the contributing organizations without which it would not havebeen possible to generate this picture of management development in Danishorganizations.The Department...

  14. Radioanalytical chemistry in Denmark

    International Nuclear Information System (INIS)

    Heydorn, K.; Levi, H.

    1979-12-01

    Publications from Denmark in the field of radioanalytical chemistry are presented in 2 groups, one involving neutron activation and similar techniques, and one for other radioanalytical work. Altogether 258 references including books are given for the period 1936-1977, and the overall doubling time is 5.2 years. A significant deviation from a purely exponential growth was caused by the Second World War. (author)

  15. Youth Homelessness in Denmark?

    DEFF Research Database (Denmark)

    Børner Stax, Tobias

    Based on a literature study this chapter reflects upon the existence of youth homelessness in Denmark. The chapter contains reflections upon the juridical measures directed towards youngsters living on the margin of the Danish society and presents two concrete project directed towards young people...... living rough. The chapter is taken form an anthology discussion youth homelessness in the different member states of the European Union....

  16. Sexual offences in Denmark

    DEFF Research Database (Denmark)

    Heinskou, Marie Bruvik; Schierff, Laura Marie; Ejbye-Ernst, Peter

    During the last years, the question of whether or not Denmark suffers from an increasing culture of violation mirroring incidents of rape and sexual coercion has been a hot topic. Thus, the low number of convictions and the complexities of the reported cases has brought about questions to be answ......During the last years, the question of whether or not Denmark suffers from an increasing culture of violation mirroring incidents of rape and sexual coercion has been a hot topic. Thus, the low number of convictions and the complexities of the reported cases has brought about questions...... rape cases has been questioned. The aim of the paper is to present the actual prevalence of sexual offences in Denmark and to investigate the various forms of offenses and their distributions among men as well as women. Thus, this paper work with a conceptualization of rape having both men and women...... as potential victims and will deploy a bottom-up empirical approach in developing new typologies of sexual offences sensible to situational characteristics. The paper is overridingly concerned with: 1) The number of victims of the various forms of offences. 2) The characteristics of the incidents The paper...

  17. Field trial of a pulsed limestone diversion well

    Science.gov (United States)

    Sibrell, Philip L.; Denholm, C.; Dunn, Margaret

    2013-01-01

    The use of limestone diversion wells to treat acid mine drainage (AMD) is well-known, but in many cases, acid neutralization is not as complete as would be desired. Reasons for this include channeling of the water through the limestone bed, and the slow reaction rate of the limestone gravel. A new approach to improve the performance of the diversion well was tested in the field at the Jennings Environmental Education Center, near Slippery Rock, PA. In this approach, a finer size distribution of limestone was used so as to allow fluidization of the limestone bed, thus eliminating channeling and increasing particle surface area for faster reaction rates. Also, water flow was regulated through the use of a dosing siphon, so that consistent fluidization of the limestone sand could be achieved. Testing began late in the summer of 2010, and continued through November of 2011. Initial system performance during the 2010 field season was good, with the production of net alkaline water, but hydraulic problems involving air release and limestone sand retention were observed. In the summer of 2011, a finer size of limestone sand was procured for use in the system. This material fluidized more readily, but acid neutralization tapered off after several days. Subsequent observations indicated that the hydraulics of the system was compromised by the formation of iron oxides in the pipe leading to the limestone bed, which affected water distribution and flow through the bed. Although results from the field trial were mixed, it is believed that without the formation of iron oxides and plugging of the pipe, better acid neutralization and treatment would have occurred. Further tests are being considered using a different hydraulic configuration for the limestone sand fluidized bed.

  18. The question of how Denmark got to be Denmark

    DEFF Research Database (Denmark)

    Jensen, Mette Frisk

    2014-01-01

    Historian Mette Frisk Jensen summarizes some of the latest findings in her research on the history of anti-corruption in Denmark since the 17th Century.......Historian Mette Frisk Jensen summarizes some of the latest findings in her research on the history of anti-corruption in Denmark since the 17th Century....

  19. IT Services in Denmark

    DEFF Research Database (Denmark)

    Csonka, Agi Eva; Boll, Joachim

    The study presented in this paper is part of the European project: New Forms of Employment and Working Time in the Service Economy/NESY. The overall objective of the project is to analyse the emergence and the effects of new forms of employment, work organisation and working time patterns in the ...... in the service sector. The project covers Belgium, Denmark, Finland, France, Germany, Italy, Netherlands, Portugal, Sweden and United Kingdom. This paper presents the results of the case study within the IT sector....

  20. Group Psychotherapy in Denmark.

    Science.gov (United States)

    Jørgensen, Lars Bo; Thygesen, Bente; Aagaard, Søren

    2015-10-01

    This is a short article on the history and training standards in the Institute of Group Analysis in Copenhagen (IGA-CPH). We describe theoretical orientations and influences in the long-term training program and new initiatives, like courses in mentalization-based group treatment and a dynamic short-term group therapy course, as well as research in group psychotherapy in Denmark. Some group analytic initiatives in relation to social issues and social welfare are presented, as well as initiatives concerning the school system and unemployment.

  1. Interprofessional education in Denmark

    DEFF Research Database (Denmark)

    Hamming, Anders; Nielsen, Anette

    2008-01-01

    Denmark has a tradition of interprofessional collaboration between the health, social work and teaching professions in many settings, dating back to the early 1960’s. Collaboration has been enshrined in law, mostly in order to prevent the exclusion of people with social, physical or other...... disabilities and to improve the efficiency of service delivery. Interprofessional education (IPE) has been required by law since 2001 for entrants to the health professions (including nurses, midwifes, physiotherapists and occupational therapists), since 2002 to social work and since 2007 for school teaching...... and social education...

  2. Denmark and Sweden

    DEFF Research Database (Denmark)

    Mailand, Mikkel; Hansen, Nana Wesley

    2016-01-01

    Denmark and Sweden have some of the largest public sectors in Europe. They are also characterized by predominantly voluntaristic labor market models where collective bargaining and employee involvement play a relatively strong role in public sector employment relations (ER). In this chapter, we...... analyze similarities and differences between the two countries regarding their public sectors and their public sector ER. The analysis focuses on three themes: main public services reforms and New Public Management (NPM), changes in the ER and job levels and the relationship between parliamentary politics...

  3. [Bariatric surgery in Denmark.

    DEFF Research Database (Denmark)

    Funch-Jensen, P.; Iversen, M.G.; Kehlet, H.

    2008-01-01

    INTRODUCTION: In 2005 the National Board of Health (NBH) published guidelines on bariatric surgery in Denmark. The aim of the present study was to shed light on the national bariatric effort in relation to these guidelines. MATERIAL AND METHODS: The analysis is based on extraction of the following......, a tendency which was attributable to the activities of one of the private clinics. CONCLUSION: The frequency with which bariatric surgery is performed follows a strongly increasing trend and the procedures are only performed at the public departments selected by the National Board of Health...

  4. The new Denmark

    DEFF Research Database (Denmark)

    Guglielmi, Michel

    2005-01-01

    Many countries are confronting challenges of moving internal borders as well as borders of tolerance. Territories and borders are like many aspects of life affected by change and rationalism in a globalised world. The New Denmark, which is about restructuring municipals, is very much concerned...... and need to hold on to common understandings of a given territory. Our project aims at critical view upon political rationalisation of administrative and economic resources. The functionalistic argumentations favouring such attitudes might be covering up for an ideological agenda echoing on a larger scale...

  5. Culture Wars in Denmark

    DEFF Research Database (Denmark)

    Ørum, Tania

    2016-01-01

    In the 1960s high and low culture were brought into sharp conflict i Denmark. In 1961 a Ministry of Culture was established for the first time. The first minister of culture, the social democrat Julius Bomholt, saw art and culture as an important part of education for democracy that should be made...... available to everyone. The general public, however, raised demands for more popular and relaxing entertainment. The confrontation between the cultural elite and popular opinion escalated to a series of veritable culture wars....

  6. Regionalization Lessons from Denmark

    DEFF Research Database (Denmark)

    Vrangbæk, Karsten

    2016-01-01

    responsibilities in organizing welfare state services. The Danish healthcare system has demonstrated an ability to increase productivity, while at the same time maintaining a high level of patient satisfaction. Ongoing reforms have contributed to these results, as well as a firm commitment to innovation...... and coordination. Regions and municipalities in Denmark are governed by directly elected democratic councils. The Danish case is thus an example of democratic decentralization, but within a framework of national coordination and fiscal control. In spite of the difference in size and historical traditions...

  7. Mobility Management in Denmark

    DEFF Research Database (Denmark)

    Guasco, Clement Nicolas

    2012-01-01

    There is today an undisputed superiority of cars on any other means of transportation, both practically and psychologically. However, the reliance on cars as the main means of transportation has led to a number of social and environmental problems. Mobility Management aims at managing the way...... people fulfil their mobility needs so that they rely less on their cars and start using alternatives such as bicycles and public transport. This article analyses the possibility to use businesses as vectors for introducing Mobility Management within social practices in Denmark in the light of the recent...

  8. PPP in Denmark

    DEFF Research Database (Denmark)

    Kristiansen, Kristian

    2009-01-01

    It is the aim of the paper to contribute to the discussion on restating the PPP principles. The paper is based on an ongoing research project: ”Procuring Facilities Management through PPP´s”. A review of litterature with a critical, but positive attitude towards PPP is given. An overview of PPP i......-life thinking can be released in PPPs. The question is raised whether the formation of partnerships between the public and private part might be a way forward for PPP in Denmark and elsewhere....

  9. Graduation in Denmark

    DEFF Research Database (Denmark)

    Warburg, Margit

    2009-01-01

    all the characteristics of a rite of passage. The graduates wear a traditional cap with a cross as cockade emblem; this special cross is a symbol of Denmark. For graduates of non-Christian background, alternative cockade emblems are available, e.g. a Star of David or a crescent; this shows...... that the cross emblem is also perceived as a Christian symbol. Social anthropologists Sally Moore and Barbara Myerhoff have suggested a scheme of the categories of religious versus scared for analysing secular rituals where religious symbols are sometimes exhibited. The applicability of their approach...

  10. Immigration and Religion in Denmark

    DEFF Research Database (Denmark)

    Christoffersen, Lisbet

    2009-01-01

    An overview over legal framework for immigration into Denmark, special clauses on religion as a parameter for residence permit and asylum in churches......An overview over legal framework for immigration into Denmark, special clauses on religion as a parameter for residence permit and asylum in churches...

  11. Denmark's National Inventory Report 2009

    DEFF Research Database (Denmark)

    Nielsen, Ole-Kenneth; Lyck, Erik; Mikkelsen, Mette Hjorth

    This report is Denmark's National Inventory Report 2009. The report contains information on Denmark's emission inventories for all years' from 1990 to 2007 for CO2, CH4, N2O, HFCs, PFCs and SF6, NOx, CO, NMVOC, SO2. The report documents the methodology as well as presents activity data and emissi...

  12. Elderly Turkish Migrants in Denmark

    DEFF Research Database (Denmark)

    Blaakilde, Anne Leonora; Petersen, Signe Sofia Gronwald; Yazici, Suzan

    Elderly Turkish migrants in Denmark: Health in a life course perspective Objective According to Statistics Denmark, Turkish immigrants constitute the largest immigrant group in Denmark with 1.1% of the population (60,390 people) in 2012. They account for a higher rate of chronic ailments and a hi......Elderly Turkish migrants in Denmark: Health in a life course perspective Objective According to Statistics Denmark, Turkish immigrants constitute the largest immigrant group in Denmark with 1.1% of the population (60,390 people) in 2012. They account for a higher rate of chronic ailments...... elderly people by studying the every day life of elderly Turkish migrants. Methods Qualitative interviews were carried out with 12 Turkish men and 18 women aged 54-80. The interviews had a focus on their health practices and health perceptions in a life history perspective. The interviews were...... histories, we learned that the interviewees had not only encountered unskilled and physical demanding work, but many of them had experienced very bad and unhealthy living conditions during their stay in Denmark. Conclusions A life course approach to the study of Elderly Turkish migrants in Denmark suggests...

  13. A Church History of Denmark

    DEFF Research Database (Denmark)

    Lausten, Martin Schwarz

    A Church History of Denmark from the Missionary periode, through the Middle Ages, the Lutheran Reformation, the Ortodoxy, Pietisme, Enlightenment and det History of the 19. and 20. century......A Church History of Denmark from the Missionary periode, through the Middle Ages, the Lutheran Reformation, the Ortodoxy, Pietisme, Enlightenment and det History of the 19. and 20. century...

  14. Public accountability procedures in Denmark

    DEFF Research Database (Denmark)

    Jamison, Andrew; Møhl, Terkel

    2004-01-01

    The article raises questions as - who is responsible for environmental and tehnological policy in Denmark? And how are those 'policymakers' made accountable to the public for their decisions?......The article raises questions as - who is responsible for environmental and tehnological policy in Denmark? And how are those 'policymakers' made accountable to the public for their decisions?...

  15. Denmark's national inventory report 2006

    DEFF Research Database (Denmark)

    Illerup, Jytte Boll; Lyck, Erik; Nielsen, Ole-Kenneth

    This report is Denmark's National Inventory Report reported to the Conference of the Parties under the United Nations Framework Convention on Climate Change (UNFCCC) due by April 2006. The report contains information on Denmark's inventories for all years' from 1990 to 2004 for CO....

  16. Total hip arthroplasty in Denmark

    DEFF Research Database (Denmark)

    Pedersen, Alma Becic; Johnsen, Søren Paaske; Overgaard, Søren

    2005-01-01

    The annual number of total hip arthroplasties (THA) has increased in Denmark over the past 15 years. There is, however, limited detailed data available on the incidence of THAs.......The annual number of total hip arthroplasties (THA) has increased in Denmark over the past 15 years. There is, however, limited detailed data available on the incidence of THAs....

  17. African Diaspora Associations in Denmark

    DEFF Research Database (Denmark)

    Vammen, Ida Marie; Trans, Lars Ove

    2011-01-01

    Since the early 1990s, an increasing number of African migrants have come to Denmark, where they have formed a large number of migrant associations. This chapter presents selected findings from a comprehensive survey of African diaspora associations in Denmark and focuses specifically...

  18. Risoe Research Establishment, Denmark

    International Nuclear Information System (INIS)

    1973-01-01

    On the poetic Roskilde Fjord, 40 kilometers from Copenhagen, and near Roskilde, capital of Denmark in the 12th century, stands the Risoe Research Establishment of the Danish Atomic Energy Commission. ere 700 men and women are engaged in searching for ways in which atomic energy can be used to make the world a better and healthier place. The work at Risoe comprises fundamental research, reactor technology and other technological studies, agricultural research and health and safety studies. Nuclear power stations are scheduled to be operative in Denmark some time between 1975 and 1980, and the planning of these stations and development of the many processes this will involve has become a major task at Risoe. Special conditions have to be fulfilled in selecting the site of an atomic research station, and the barren Risoe peninsula had them all: safety, because the site was free from buildings to permit continuous control; closeness to the scientific institutions of the capital, Copenhagen; social amenities in Roskilde; finally, access to an a adequate water supply. his special series of photos covering some aspects of the work and safety conditions at Risoe was commissioned by WHO. (author)

  19. LUTETIAN LIMESTONES IN THE PARIS REGION: PETROGRAPHIC AND COMPOSITIONAL EXAMINATION

    International Nuclear Information System (INIS)

    BLANC, A.; HOLMES, L.L.; HARBOTTLE, G.

    1998-01-01

    Stone for building and decorating monuments in the Paris Basin from antiquity to the present came from numerous quarries in the Lutetian limestone formations of the region. To identify specific-stone sources used for masonry and sculptures in these monuments, a team of geologists and archaeologists has investigated 300 quarries and collected 2,300 limestone samples for study in a collaborative effort by geologists and chemists. Petrographic and paleontologic examinations of thin sections enable geologists to distinguish the Tertiary Lutetian limestones from similar stone in Jurassic and Cretaceous strata. The methods of the geologist have been supplemented by those of the chemist whose compositional studies by neutron activation analysis can differentiate among the fine-grained upper Lutetian limestones extracted from specific ancient quarries

  20. Improving DMS 9210 requirements for limestone rock asphalt - final report.

    Science.gov (United States)

    2015-03-01

    Limestone Rock Asphalt (LRA) mixtures have been produced and placed for several decades using : specification requirements currently listed under DMS 9210. Several districts have had placement issues : and premature failures at the beginning of 2010....

  1. LUTETIAN LIMESTONES IN THE PARIS REGION: PETROGRAPHIC AND COMPOSITIONAL EXAMINATION

    Energy Technology Data Exchange (ETDEWEB)

    BLANC,A.; HOLMES,L.L.; HARBOTTLE,G.

    1998-06-11

    Stone for building and decorating monuments in the Paris Basin from antiquity to the present came from numerous quarries in the Lutetian limestone formations of the region. To identify specific-stone sources used for masonry and sculptures in these monuments, a team of geologists and archaeologists has investigated 300 quarries and collected 2,300 limestone samples for study in a collaborative effort by geologists and chemists. Petrographic and paleontologic examinations of thin sections enable geologists to distinguish the Tertiary Lutetian limestones from similar stone in Jurassic and Cretaceous strata. The methods of the geologist have been supplemented by those of the chemist whose compositional studies by neutron activation analysis can differentiate among the fine-grained upper Lutetian limestones extracted from specific ancient quarries.

  2. Lutetian limestones in the Paris region: Petrographic and compositional examination

    Energy Technology Data Exchange (ETDEWEB)

    Blanc, A. [Lab. de Recherche des Monuments Historiques, Champs-sur-Marne (France); Holmes, L.L.; Harbottle, G. [Brookhaven National Lab., Upton, NY (United States). Chemistry Dept.

    1998-12-31

    Stone for building and decorating monuments in the Paris Basin from antiquity to the present came from numerous quarries in the Lutetian limestone formations of the region. To identify specific stone sources used for masonry and sculptures in these monuments, a team of geologists and archaeologists have investigated 300 quarries and collected 2,300 limestone samples for study in a collaborative effort by geologists and chemists. Petrographic and paleontologic examinations of thin sections enable geologists to distinguish the Tertiary Lutetian limestones from similar stone in Jurassic and Cretaceous strata. The methods of the geologist have been supplemented by those of the chemistry whose compositional studies by neutron activation analysis can differentiate among the fine-grained upper Lutetian limestones extracted from specific ancient quarries.

  3. A Metagenomic Survey of Limestone Hill in Taiwan

    Science.gov (United States)

    Hsu, Y. W.; Li, K. Y.; Chen, Y. W.; Huang, T. Y.; Chen, W. J.; Shih, Y. J.; Chen, J. S.; Fan, C. W.; Hsu, B. M.

    2016-12-01

    The limestone of Narro-Sky in Tainliao, Taiwan is of Pleistocene reef limestones interbedded in clastic layers that covered the Takangshan anticlines. Understanding how microbial relative abundance was changed in response to changes of environmental factors may contribute to better comprehension of roles that microorganisms play in altering the landscape structures. In this study, microorganisms growing on the wall of limestone, in the water dripping from the limestone wall and of soil underneath the wall were collected from different locations where the environmental factors such as daytime illumination, humidity, or pH are different. Next generation sequencing (NGS) was carried out to examine the compositions and richness of microbial community. The metagenomics were clustered into operational taxonomic units (OTUs) to analyze relative abundance, diversities and principal coordinates analysis (PCoA). Our results showed the soil sample has the highest alpha diversity while water sample has the lowest. Four major phyla, which are Proteobacteria, Acidobacteria, Actinobacteria, and Cyanobacteria, account for 80 % of total microbial biomass in all groups. Cyanobacteria were found most abundantly in limestone wall instead of water or soil of weathering limestone. The PCoA dimensional patterns of each phylum showed a trace of microbial community dynamic changes, which might be affected by environmental factors. This study provides the insights to understand how environmental factors worked together with microbial community to shape landscape structures.

  4. Converting SDAP into gypsum in a wet limestone scrubber

    Energy Technology Data Exchange (ETDEWEB)

    Fogh, F. [Faelleskemikerne, Elsamprojekt A/S, Fredericia (Denmark)

    1996-12-01

    The ELSAM power pool has an installed electrical capacity of approx. 5 GW{sub e}, mainly firing import coal. The major base load units are equipped with desulphurization units and three different desulphurization technologies are used: the wet limestone gypsum process, the spray dry absorption process and a sulphuric acid process. Gypsum and sulphuric acid are commercialized, whereas it has been difficult to utilize the spray dry absorption product (SDAP). The main constituents of SDAP are calcium sulphide, calcium chloride, hydrated lime and impurities mainly originating from fly ash. Sulphide can be oxidized into sulphate in acidic solution - the reaction is utilized in the wet limestone gypsum process - and the possibility of using any spare capacity in the wet limestone gypsum units to oxidize the sulphide content of SDAP into sulphate and produce usable gypsum has been investigated in the laboratory and in a 400 MW{sub e} equivalent wet limestone unit. The limestone inhibition effect of the addition of SDAP is currently being studied in the laboratory in order to determine the effect of different SDAP types (plant/coal sources) on limestone reactivity before further long-term full-scale tests are performed and permanent use of the process planned. (EG)

  5. Influence of limestone on the hydration of Portland cements

    International Nuclear Information System (INIS)

    Lothenbach, Barbara; Le Saout, Gwenn; Gallucci, Emmanuel; Scrivener, Karen

    2008-01-01

    The influence of the presence of limestone on the hydration of Portland cement was investigated. Blending of Portland cement with limestone was found to influence the hydrate assemblage of the hydrated cement. Thermodynamic calculations as well as experimental observations indicated that in the presence of limestone, monocarbonate instead of monosulfate was stable. Thermodynamic modelling showed that the stabilisation of monocarbonate in the presence of limestone indirectly stabilised ettringite leading to a corresponding increase of the total volume of the hydrate phase and a decrease of porosity. The measured difference in porosity between the 'limestone-free' cement, which contained less than 0.3% CO 2 , and a cement containing 4% limestone, however, was much smaller than calculated. Coupling of thermodynamic modelling with a set of kinetic equations which described the dissolution of the clinker, predicted quantitatively the amount of hydrates. The quantities of ettringite, portlandite and amorphous phase as determined by TGA and XRD agreed well with the calculated amounts of these phases after different periods of time. The findings in this paper show that changes in the bulk composition of hydrating cements can be followed by coupled thermodynamic models. Comparison between experimental and modelled data helps to understand in more detail the dominating processes during cement hydration

  6. Thermal properties of the Cobourg Limestone

    Science.gov (United States)

    Pitts, Michelle

    The underground storage of used nuclear fuel in Deep Geologic Repositories (DGRs) has been a subject of research in Canada for decades. One important technical aspect of repository design is the accommodation of the mechanical impacts of thermal inputs (heating) from the fuel as it goes through the remainder of its life cycle. Placement room spacing, a major factor in project cost, will be determined by the ability of the host rock to dissipate heat. The thermal conductivity and linear thermal expansion will determine the evolution of the temperature and thermally-induced stress fields. Thermal processes must be well understood to design a successful DGR. This thesis examines the thermal properties of rocks, how they are influenced by factors such as temperature, pressure, mineralogy, porosity, and saturation; and common methods for calculating and/or measuring these properties. A brief overview of thermal and thermally-coupled processes in the context of DGRs demonstrates the degree to which they would impact design, construction, and operation of these critical structures. Several case histories of major in situ heating experiments are reviewed to determine how the lessons learned could be applied to a Canadian Underground Demonstration Facility (UDF). A mineralogy investigation using X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM) examines samples of the Cobourg Limestone from the Bowmanville and Bruce sites, and demonstrates geographical variability within the Cobourg Formation. The thermal properties of samples from the Bowmanville site are determined. A divided bar apparatus was constructed and used to measure thermal conductivity. The temperature measurement component of the divided bar apparatus was used to measure linear thermal expansion. Finally, the past investigations into the thermal impact of a DGR are reviewed, and the implications of the laboratory testing results on similar analyses are discussed.

  7. Denmark health system review.

    Science.gov (United States)

    Olejaz, Maria; Juul Nielsen, Annegrete; Rudkjøbing, Andreas; Okkels Birk, Hans; Krasnik, Allan; Hernández-Quevedo, Cristina

    2012-01-01

    Denmark has a tradition of a decentralized health system. However, during recent years, reforms and policy initiatives have gradually centralized the health system in different ways. The structural reform of 2007 merged the old counties into fewer bigger regions, and the old municipalities likewise. The hospital structure is undergoing similar reforms, with fewer, bigger and more specialized hospitals. Furthermore, a more centralized approach to planning and regulation has been taking place over recent years. This is evident in the new national planning of medical specialties as well as the establishment of a nationwide accreditation system, the Danish Healthcare Quality Programme, which sets national standards for health system providers in Denmark. Efforts have also been made to ensure coherent patient pathways - at the moment for cancer and heart disease - that are similar nationwide. These efforts also aim at improving intersectoral cooperation. Financially, recent years have seen the introduction of a higher degree of activity-based financing in the public health sector, combined with the traditional global budgeting.A number of challenges remain in the Danish health care system. The consequences of the recent reforms and centralization initiatives are yet to be fully evaluated. Before this happens, a full overview of what future reforms should target is not possible. Denmark continues to lag behind the other Nordic countries in regards to some health indicators, such as life expectancy. A number of risk factors may be the cause of this: alcohol intake and obesity continue to be problems, whereas smoking habits are improving. The level of socioeconomic inequalities in health also continues to be a challenge. The organization of the Danish health care system will have to take a number of challenges into account in the future. These include changes in disease patterns, with an ageing population with chronic and long-term diseases; ensuring sufficient staffing

  8. Company cases Denmark

    DEFF Research Database (Denmark)

    Tølle, Martin; Pedersen, Jørgen Lindgaard

    2005-01-01

    The Danish part of the publication describes two Danish cases with foreign companies taking over Danish companies. The first case is from software industry where Datacentralen (DC) was taken over by American company Computer Sciences Corporation (CSC) in 1986. DC delivered IT - solutions...... IT - solitions. CSC wanted to buy DC to penetrate the Nordic market. Some effects can be mentioned: Employment in CSC - DK is in 2003 1,700 persons or 2,600 including other companies bought up recently. In innovation positive effects can be registered from contacts with CSC - International. Not only from access...... - Laboratoriet, Benzon - Pharma and Pharma - Medica during years 1988 - 1991.Nycomed wants to establish itself as a company on European level.After a decade with different owners, fusions and splitting ups a construction in which head quarter and R&D move to Denmark close to Copenhagen. The importance...

  9. [Bariatric surgery in Denmark.

    DEFF Research Database (Denmark)

    Funch-Jensen, P.; Iversen, M.G.; Kehlet, H.

    2008-01-01

    INTRODUCTION: In 2005 the National Board of Health (NBH) published guidelines on bariatric surgery in Denmark. The aim of the present study was to shed light on the national bariatric effort in relation to these guidelines. MATERIAL AND METHODS: The analysis is based on extraction of the following......, a tendency which was attributable to the activities of one of the private clinics. CONCLUSION: The frequency with which bariatric surgery is performed follows a strongly increasing trend and the procedures are only performed at the public departments selected by the National Board of Health...... data from the National Patient Registry in the period from 2005 through 2007: annual number of operations, type of operation, laparoscopic versus open procedure. Furthermore, the centres were compared. RESULTS: A total of 2,098 bariatric procedures were performed in the years 2005 to 2007. Apart from...

  10. Corporate Bonds in Denmark

    DEFF Research Database (Denmark)

    Tell, Michael

    2015-01-01

    Corporate financing is the choice between capital generated by the corporation and capital from external investors. However, since the financial crisis shook the markets in 2007–2008, financing opportunities through the classical means of financing have decreased. As a result, corporations have...... markets. However, NASDAQ OMX has introduced the First North Bond Market in December 2012 and new regulatory framework came into place in 2014, which may contribute to a Danish based corporate bond market. The purpose of this article is to present the regulatory changes in Denmark in relation to corporate...... bonds. The purpose is further to analyse the tax consequences of issuing bonds in both a direct issue of bonds and through securitization....

  11. Think tanks in Denmark

    DEFF Research Database (Denmark)

    Blach-Ørsten, Mark; Kristensen, Nete Nørgaard

    2016-01-01

    outside the media. The study shows that the two largest and oldest think tanks in Denmark, the liberal think tank CEPOS and the social democratic think tank ECLM, are very active and observable in the media; that the media’s distribution of attention to these think tanks, to some extent, confirms a re......Though think tanks have a long history internationally, they have especially in recent years come to play an increasingly important role in both policy-formulation and public debate. In this article, we analyse the growing presence of think tanks in a Danish context during the 2000s and the first...... half of the 2010s, because in this national setting think tanks are still a relatively new phenomenon. Based on theories of mediatization and de-corporatization, we present 1) an analysis of the visibility of selected Danish think tanks in the media and 2) an analysis of their political networks...

  12. Denmark: a geography of energy

    DEFF Research Database (Denmark)

    Haselip, James Arthur

    2012-01-01

    Since the oil crises of the 1970s, when Denmark was 90% dependent upon imported oil, the country has decoupled economic growth from energy consumption and greatly diversified its sources of energy....

  13. Hepatitis B prevalence in Denmark

    DEFF Research Database (Denmark)

    Hansen, N; Hay, G; Cowan, S

    2013-01-01

    The prevalence of chronic hepatitis B virus (HBV) infection in Denmark is not clear. The primary aim of this study was to estimate the prevalence of chronic HBV infection in Denmark. The capture–recapture method was used to estimate the total population diagnosed with chronic HBV infection...... in Denmark using four nationwide registers. The population with undiagnosed chronic HBV infection was estimated by incorporating data from a two-year nationwide HBsAg screening programme in pregnant women. We identified 4,466 individuals with chronic HBV infection in the four registers until the end of 2007...... alive with HBV infection was 10,668 (95% CI: 10,224–16,164), corresponding to a prevalence of 0.24% (95% CI: 0.23–0.37%) in the Danish population older than 15 years. The estimated prevalence of chronic HBV infection among adults in Denmark was lower than reported from other northern European countries...

  14. Denmark's National Inventory Report 2018

    DEFF Research Database (Denmark)

    Nielsen, Ole-Kenneth; Plejdrup, Marlene Schmidt; Winther, Morten

    The report documents the methodologies and data used to estimate greenhouse gas emissions from Denmark for the reporting obligations under the European Union, the United Nations Framework Convention on Climate Change and the Kyoto Protocol....

  15. Multidecadal shoreline changes in Denmark

    DEFF Research Database (Denmark)

    Kabuth, Alina Kristin; Kroon, Aart; Pedersen, Jørn Bjarke Torp

    2014-01-01

    Multidecadal shoreline changes along ca. 7000 km coastline around Denmark were computed for the time interval between 1862 AD and 2005 AD and were connected with a geomorphological coastal classification. The shoreline data set was based on shoreline positions from historical and modern topographic...... shoreline changes around Denmark, the mapping can contribute to enhanced adaptation and mitigation strategies in response to increased risks of erosion and flooding under a changing climate....

  16. Characterization of Limestone as Raw Material to Hydrated Lime

    Science.gov (United States)

    Salem Hwidi, Rajeb; Nuraiti Tengku Izhar, Tengku; Saad, Farah Naemah Mohd

    2018-03-01

    In Malaysia, limestone is essentially important for the economic growth as raw materials in the industry sector. Nevertheless, a little attention was paid to the physical, chemical, mineralogical, and morphological properties of the limestone using X-ray fluorescence (X-RF), X-ray diffraction (X-RD), Fourier transform infrared spectroscopy (FTIR), and Scanning electron microscopy / energy dispersive x-ray spectroscopy (SEM-EDS) respectively. Raw materials (limestone rocks) were collected from Bukit Keteri area, Chuping, Kangar, Perlis, Malaysia. Lab crusher and lab sieved were utilized to prepare five different size of ground limestone at (75 µm, 150 µm, 225 µm, 300, and 425 µm) respectively. It is found that the main chemical composition of bulk limestone was Calcium oxide (CaO) at 97.58 wt.% and trace amount of MnO, Al2O3, and Fe2O3 at 0.02%, 0.35%, and 0.396% respectively. XRD diffractograms showed characteristic peaks of calcite and quartz. Furthermore, main FTIR absorption bands at 1,419, 874.08 and 712.20 cm-1 indicated the presence of calcite. The micrographs showed clearly the difference of samples particle size. Furthermore, EDS peaks of Ca, O, and C elements confirmed the presence of CaCO3 in the samples.

  17. Radial Hydraulic Flow Testing of an Argillaceous Limestone

    Science.gov (United States)

    Jenner, Luc

    This thesis describes the use of both steady state and transient radial flow tests for determining the permeability of the argillaceous Lindsay Limestone. The results obtained from this research investigation are compared with data available in the literature for similar argillaceous limestones found in the Lindsay (Cobourg) formation. The efficiency and consistency of the transient and steady state results show computational modeling using finite element programs such as COMSOL Multiphysics(TM) can be used, under the appropriate meshing scheme, to analyse test results on low permeability geomaterials. The results give a permeability range between 1x10 -22 m2 to 1.68 x 10-19 m 2 with flow along the bedding plane under unconfined conditions. The permeability of the Lindsay Limestone is of importance in understanding and predicting radionuclide spread within a proposed Deep Ground Repository for storing radioactive waste.

  18. Initial kinetics of the direct sulfation of limestone

    DEFF Research Database (Denmark)

    Hu, Guilin; Shang, Lei; Dam-Johansen, Kim

    2008-01-01

    The initial kinetics of direct sulfation of Faxe Bryozo, a porous bryozoan limestone was studied in the temperature interval from 873 to 973 K in a pilot entrained flow reactor with very short reaction times (between 0.1 and 0.6 s). The initial conversion rate of the limestone - for conversions...... less than 0.3% - was observed to be significantly promoted by higher SO2 concentrations and lower CO2 concentrations, whereas 02 showed negligible influence. A mathematical model for the sulfation of limestone involving chemical reaction at calcite grain surfaces and solid-state diffusion of carbonate...... ions in calcite grains is established. The validity of the model is limited to the initial sulfation period, in which nucleation of the solid product calcium sulphate is not started. This theoretical reaction-diffusion model gives a good simulation of the initial kinetics of the direct sulfation...

  19. The Ançã limestones, Coimbra, Portugal

    Science.gov (United States)

    Quinta-Ferreira, Mário; Gil Catarino, Lídia; Delgado Rodrigues, José

    2016-04-01

    Ançã is located in the Lusitanian Basin (western Meso-Cenozoic sedimentary basin), in the municipality of Cantanhede, close to Coimbra, Portugal. This constitutes the northernmost Dogger (Bajocian) limestone sequence in Portugal. The use of the Ançã limestones is documented since the Roman occupation of the Iberian Peninsula. It was used for the construction of houses, palaces, churches, fine sculptures, carving, paving and for the production of lime. These limestones vary from white and very soft varieties, with very high porosity used for sculpture and carving to white and hard varieties used for masonry and as aggregates and to white to bluish with low porosity and high strength varieties, mainly used for paving. The softer and whiter variety is worldwide known as Ançã Stone (Pedra de Ançã) exhibiting a porosity of 26-29 %. It became famous after being largely used by Coimbra most famous Renaissance sculptors like João de Ruão and Nicolau de Chanterenne. The Pedra de Ançã was used mainly in the region of Coimbra, but also in several other places in Portugal, in Santiago de Compostela, Spain, and Brazil. Some examples of heritage in Coimbra using the Pedra de Ançã are the renaissance portal of the Saint Cross Church, the tombs of the first two Portuguese kings located in this church, the altar of the Saint Cross Church or of the Old Cathedral, or in sculptures at the University of Coimbra. It is quite prone to deteriorate when exposed to atmospheric agents and to soluble salts, mainly due to its high porosity. Deteriorated surfaces needing treatment constitute difficult conservation problems, especially when consolidation and protection treatments are required. The less porous varieties of the Ançã limestones (building constructed at the end of the XIX century with the less porous varieties of the Ançã limestones. Most of the traditional quarries are abandoned and those still in activity are mainly used to produce crushed aggregates, limestone

  20. Oxic limestone drains for treatment of dilute, acidic mine drainage

    Science.gov (United States)

    Cravotta, Charles A.

    1998-01-01

    Limestone treatment systems can be effective for remediation of acidic mine drainage (AMD) that contains moderate concentrations of dissolved O2 , Fe3+ , or A13+ (1‐5 mg‐L‐1 ). Samples of water and limestone were collected periodically for 1 year at inflow, outflow, and intermediate points within underground, oxic limestone drains (OLDs) in Pennsylvania to evaluate the transport of dissolved metals and the effect of pH and Fe‐ and Al‐hydrolysis products on the rate of limestone dissolution. The influent was acidic and relatively dilute (pH 1 mg‐L‐1 ) but was near neutral (pH = 6.2‐7.0); Fe and Al decreased to less than 5% of influent concentrations. As pH increased near the inflow, hydrous Fe and Al oxides precipitated in the OLDs. The hydrous oxides, nominally Fe(OH)3 and AI(OH)3, were visible as loosely bound, orange‐yellow coatings on limestone near the inflow. As time elapsed, Fe(OH)3 and AI(OH)3 particles were transported downflow. During the first 6 months of the experiment, Mn 2+ was transported conservatively through the OLDs; however, during the second 6 months, concentrations of Mn in effluent decreased by about 50% relative to influent. The accumulation of hydrous oxides and elevated pH (>5) in the downflow part of the OLDs promoted sorption and coprecipitation of Mn as indicated by its enrichment relative to Fe in hydrous‐oxide particles and coatings on limestone. Despite thick (~1 mm) hydrous‐oxide coatings on limestone near the inflow, CaCO3 dissolution was more rapid near the inflow than at downflow points within the OLD where the limestone was not coated. The rate of limestone dissolution decreased with increased residence time, pH, and concentrations of Ca2+ and HCO3‐ and decreased PCO2. The following overall reaction shows alkalinity as an ultimate product of the iron hydrolysis reaction in an OLD:Fe2+ + 0.25 O2 +CaCO3 + 2.5 H2O --> Fe(OH)3 + 2 Ca2+ + 2 HCO3-where 2 moles of CaCO3 dissolve for each mole of Fe(OH)3 produced

  1. effect of limestone particle size on bone quality of layers

    African Journals Online (AJOL)

    UFS

    Peer-reviewed paper: 10th World Conference on Animal Production. 41. Effect of limestone particle size on bone quality characteristics of hens at end-of-lay. F.H. de Witt. #. , N.P. Kuleile .... 18 g), were obtained from a commercial egg producer and randomly allocated to the three treatments (n. = 23). At 70 weeks of age, ...

  2. The Solnhofen Limestone: A stony heritage of many uses

    Science.gov (United States)

    Kölbl-Ebert, Martina; Kramar, Sabina; Cooper, Barry J.

    2016-04-01

    High above the valley of the River Altmühl (Bavaria, Germany), between Solnhofen to the west and Kelheim to the east, numerous quarries give access to thinly plated limestone from the Upper Jurassic, some 150 million years before the present. The main quarry areas lie around the town of Eichstätt and between the villages of Solnhofen, Langenaltheim and Mörnsheim. Here limestone slabs have been quarried for several hundred years, some even in Roman times. Solnhofen Limestone is famous worldwide; not only because it is a beautiful building stone of high quality, but also because of the exceptionally well-preserved fossils it contains -among them the early bird Archaeopteryx. The quarry industry between Solnhofen and Eichstätt has shaped a cultural landscape, with old and new quarries sunk into the plain and numerous spoil heaps rising above it, for the rock is not all economically useful. But many of the spoil heaps and the old quarries are environmentally protected as they provide a habitat for some rare plants and animals. It is not necessary to cut the Solnhofen Limestone with a saw: it is split by hand into thin and even slabs or sheets which are used for flagstones and wall covers, which since centuries are sold world-wide. Locally it also serves as roof tiles for traditional houses. Thick slabs of especially fine quality may be found near Solnhofen and Mörnsheim and are used for lithography printing.

  3. Flora of Chihuahuan desertscrub on limestone in northeastern Sonora, Mexico

    Science.gov (United States)

    Thomas R. Van Devender; Ana Lilia Reina-Guerrero; J. Jesus. Sanchez-Escalante

    2013-01-01

    Transects were done in desertscrub on limestone to characterize the flora of the westernmost Chihuahuan Desert. Most of the sites (15) were in the Municipios of Agua Prieta and Naco in northeastern Sonora, with single sites near Ascensión, northwestern Chihuahua and east of Douglas in southeastern Arizona. A total of 236 taxa were recorded on transects. Dicot perennial...

  4. The use of Limestone Powder as an Alternative Cement Replacement

    African Journals Online (AJOL)

    user

    cement productivity, reduced production cost and environmental protection with a significant reduction of CO2 and ... The use of limestone filler in combination with. Portland cement is a common practice in many countries in .... in plastic bags with a content of 1350 g. Water. Throughout the investigation, tap water supplied.

  5. The Influence of Combustion-derived pollutants on limestone deterioration

    DEFF Research Database (Denmark)

    Johnson, J.B.; Montgomery, Melanie; Thompson, G.E.

    1996-01-01

    The wet deposition of combustion-derived atmospheric pollutant species, on to freshly cut or diesel-smoked Portland and Monks Park limestone and marble samples, was carried out in a laboratory 'wetting and drying' salt spray chamber for 84 days. Along with the effect of CO2-equilibrated de......-ionized water at pH 5.5, for clean-rain base-line data, the relative effects of the Cl-, SO42- and NO3- components (5.2, 8.6 and 3.0 mg 1(-1) respectively) of an artificial acid-rain solution were studied. Using spray run-off solution rates of 0.2 mi cm(-2), day(-1) and pH values of 5.5 and 3.8, the work...... limestones, respectively. Thus the water and hydrogen ion loading effects are significant, as well as the limestone type, but the nature of the anion is not, under the given wetting and drying regime. Further work showed that the increased resistance of marble over that of limestone, to calcium loss...

  6. Melitidae (Crustacea, Amphipoda) from anchihaline limestone caves in New Caledonia

    NARCIS (Netherlands)

    Stock, Jan H.; Iliffe, Thomas M.

    1995-01-01

    Four new species of Melitidae (Amphipoda) are described from anchihaline limestone caves in New Caledonia. Three species are classified with Josephosella Ruffo, 1985 (J. microps n. sp., J. debilis n. sp., and J. proiecta n. sp.) and a new genus, Caledopisa, is erected for the fourth species, C.

  7. Limestone rocks analysis by X-ray fluorescence analysis

    International Nuclear Information System (INIS)

    Izquierdo M, G.; Ponce R, R.; Vazquez J, J.

    1996-01-01

    By request of a private company, employing basically X-ray fluorescence analysis (X RF), was established a fast and accurate method for the analysis of the major elements in limestone rocks. Additionally, for complementing analysis was determined by ion chromatography, the chlorides appearance and by atomic absorption of sodium. By gravimetry, was determined the losses by ignition and the alpha quartz. (Author)

  8. Sodium sesquicarbonate (Akang) and limestone as catalysts for the ...

    African Journals Online (AJOL)

    Production of monoglycerides from palm and palm kernel oils were carried out using sodium sesquicarbonate (akang) and lime stone as catalysts.The results showed that the maximum monoglyceride formed is in the range of 49–57% of the fatty product for the limestone catalyst and 78 – 92% for the sodium ...

  9. The age of the Nodular Limestone Formation (Late Cretaceous ...

    Indian Academy of Sciences (India)

    67

    2016-05-23

    May 23, 2016 ... Stratigraphy and Invertebrate Palaeontology Laboratory, Center of Advanced Study, Department of Geology, Banaras Hindu University, Varanasi 221005, India. *corresponding author - email: dbpathak@yahoo.com. Abstract. The age of the marine Nodular Limestone Formation of the Bagh Group is refined ...

  10. Kinetic Study of Calcination of Jakura Limestone Using Power Rate ...

    African Journals Online (AJOL)

    The calcination of Jakura limestone was also found to be first order reaction with respect to CaCO3 concentration having average regression coefficient of 0.99. The temperature dependent terms were found using Arrhenius law and it was observed that the reaction temperature has a direct effect on the rate of reaction.

  11. influence of limestone particle size on egg production and eggshell ...

    African Journals Online (AJOL)

    UFS

    Sixty nine, individual caged Lohmann-Silver pullets, 17 weeks of age, were randomly ... Keywords: Lohmann-Silver, feed efficiency, egg weight, eggshell thickness, calcification. # Corresponding ... limestone in the acidic environment of the gizzard would provide more available ionic calcium (Ca2+) during night-time, which ...

  12. Corporatism in Denmark and Norway

    DEFF Research Database (Denmark)

    Simonsen, Mikkel Mailand

    2009-01-01

    The literature of corporatism tends to bypass most Scandinavian countries and ignore state-social partner relations not related to wage bargaining and income policy. This contribution attempts to overcome both these shortcomings. It concludes that corporatism is alive in Denmark and Norway......, in Norway ‘peak-level' corporatism on wage setting remains stronger than in Denmark, whereas ‘meso-level' corporatism (corporatism in specific policy area) is stronger in Denmark than in Norway........ The social partners have, as general rule, been involved in formulating and implementing changes in welfare state policies, and corporatist arrangements are also seen in relation to some industrial relations issues. The two countries share a number of contextual features important for corporatism. However...

  13. 0-6686 : improving DMS 9210 requirements for limestone rock asphalt : [project summary].

    Science.gov (United States)

    2013-08-01

    Limestone rock asphalt (LRA) mixtures have : been produced and placed for several decades : using specification requirements currently listed : under DMS 9210, Limestone Rock Asphalt (LRA). : Several Texas Department of Transportation : (TxDOT) distr...

  14. Holocene limestones of part of the western continental shelf of India

    Digital Repository Service at National Institute of Oceanography (India)

    Nair, R.R.; Hashimi, N.H.; Guptha, M.V.S.

    Dredging on the western continental shelf of India has shown that the most common rock types outcropping on the irregular topography of the outer shelf (70-90 m) are algal limestones and shelly limestones containing superficial ooids and pelletoids...

  15. Zone Denmark - gasell Taanist / Reet Krause

    Index Scriptorium Estoniae

    Krause, Reet, 1967-

    2006-01-01

    Taanis Viborgis asuva firma Zone Company Denmark, kaubamärgi Zone Denmark ja firma disainerite tutvustus. Ettevõte valmistab disainitooteid roostevabast terasest, klaasist, puidust, kummist jm. Disainer Naja Utzon Popov endast, oma loomingust

  16. Etnic Diversity in the Globalised Denmark

    DEFF Research Database (Denmark)

    Singla, Rashmi; Popova, Dr. Margarita

    This paper deals with ethnic minorities in Denmark and covers some psychosocial aspects including bilingualism.......This paper deals with ethnic minorities in Denmark and covers some psychosocial aspects including bilingualism....

  17. Assessment of Environmental Impacts of Limestone Quarrying Operations in Thailand

    Science.gov (United States)

    Kittipongvises, Suthirat

    2017-11-01

    Environmental impacts of the mineral extraction have been a public concern. Presently, there is widespread global interest in the area of mining and its sustainability that focused on the need to shift mining industry to a more sustainable framework. The aim of this study was to systematically assess all possible environmental and climate change related impacts of the limestone quarrying operation in Thailand. By considering the life cycle assessment method, the production processes were divided into three phases: raw material extraction, transportation, and comminution. Both IMPACT 2002+ and the Greenhouse Gas Protocol methods were used. Results of IMPACT 2002+ analysis showed that per 1 ton crushed limestone rock production, the total depletion of resource and GHGs emissions were 79.6 MJ and 2.76 kg CO2 eq., respectively. Regarding to the four damage categories, `resources' and `climate change' categories were the two greatest environmental impacts of the limestone rock production. Diesel fuel and electricity consumption in the mining processes were the main causes of those impacts. For climate change, the unit of CO2 eq. was expressed to quantify the total GHGs emissions. Estimated result was about 3.13 kg CO2 eq. per ton limestone rock product. The results obtained by the Greenhouse Gas Protocol were also similar to IMPACT 2002+ method. Electrical energy consumption was considered as the main driver of GHGs, accounting for approximately 46.8 % of total fossil fuel CO2 emissions. A final point should be noted that data uncertainties in environmental assessment over the complete life cycle of limestone quarrying operation have to be carefully considered.

  18. Assessment of Environmental Impacts of Limestone Quarrying Operations in Thailand

    Directory of Open Access Journals (Sweden)

    Kittipongvises Suthirat

    2017-11-01

    Full Text Available Environmental impacts of the mineral extraction have been a public concern. Presently, there is widespread global interest in the area of mining and its sustainability that focused on the need to shift mining industry to a more sustainable framework. The aim of this study was to systematically assess all possible environmental and climate change related impacts of the limestone quarrying operation in Thailand. By considering the life cycle assessment method, the production processes were divided into three phases: raw material extraction, transportation, and comminution. Both IMPACT 2002+ and the Greenhouse Gas Protocol methods were used. Results of IMPACT 2002+ analysis showed that per 1 ton crushed limestone rock production, the total depletion of resource and GHGs emissions were 79.6 MJ and 2.76 kg CO2 eq., respectively. Regarding to the four damage categories, ‘resources’ and ‘climate change’ categories were the two greatest environmental impacts of the limestone rock production. Diesel fuel and electricity consumption in the mining processes were the main causes of those impacts. For climate change, the unit of CO2 eq. was expressed to quantify the total GHGs emissions. Estimated result was about 3.13 kg CO2 eq. per ton limestone rock product. The results obtained by the Greenhouse Gas Protocol were also similar to IMPACT 2002+ method. Electrical energy consumption was considered as the main driver of GHGs, accounting for approximately 46.8 % of total fossil fuel CO2 emissions. A final point should be noted that data uncertainties in environmental assessment over the complete life cycle of limestone quarrying operation have to be carefully considered.

  19. Carbon and Oxygen Isotope Ratios in Rona Limestone, Romania

    Directory of Open Access Journals (Sweden)

    Stela Cuna

    2001-04-01

    Full Text Available The carbon and oxygen isotopic compositions of limestones provide criteria for the evaluation of the depositional environment. For Jurassic and younger samples, the best discrimination between marine and fresh-water limestones is given by Z parameter, calculated as a linear correlation between δ13C and δ18O (‰ PDB. Rona Limestone (Upper Paleocene - Lower Eocene, outcropping on a small area in NW Transylvania (Meseş area is a local lacustrine facies. There, it divides Jibou Formation into the Lower Red Member and the Upper Variegated Member, respectively. Recently, a sequence containing a marine nannoplankton assemblage was identified in the base of Rona deposits. The main goal of our study was to characterize, based on the isotopic record, the primary environment of formation of the deposit, as well as that in which some diagenetic processes (the formation of dolomite and of green clay around the siliceous chert nodules took place. Ten samples representing limestones, dolomitic limestone, marls and the green carbonate-rich clay were studied from petrographical and mineralogical points of view, and the carbon and oxygen isotopic ratios from the carbonate (calcite component were measured. In conclusion, it was found that the procedure of extraction of CO2 we used enabled the discrimination between the isotopic prints of calcite vs. dolomite. This pleads for considering our results as a primary isotopic pattern in the bulk rock. The oxygen and carbon isotope data indicate a fresh-water depositional environment with Z<120. The δ13C mean value (-4.96 ‰ PDB is, generally, representative for fresh-water carbonates of the Tertiary period. The same environment characterized also the formation of carbonates within the green clay.

  20. Green tax reform in Denmark

    DEFF Research Database (Denmark)

    Andersen, Mikael Skou

    1994-01-01

    Energy, transport and fuel taxes in Denmark have, since the late 1970s, been among the highest in the OECD, and raise already more than 30 billion DKK annually to cover 10-12 per cent of the state household: a share that will be increased over the next five years with new green taxes. Furthermore......, Denmark is currently the only country within the European Union which has introduced a tax on CO2; although Germany and the Netherlands are also considering doing so, the Danish CO2 tax has been effective since 1 January 1993....

  1. Rescaling Welfare Policies in Denmark

    DEFF Research Database (Denmark)

    Haddad Thorgaard, Camilla; Vinter, Henrik

    . It provides background information for understanding the rescaling process in Denmark. The report has a three-fold purpose. First, it describes the contextual conditions within which the rescaling process occurs. Second, it describes the institutional settings in terms of territorial responsibilities...... and competences, identifying the relevant actors involved in policy design, management and delivery. Third, it describes the rescaling process that has occurred in Denmark since the 1980s; it focuses on four policy areas: social assistance and local politics against poverty, employment policy, elder care...

  2. Stepfamilies in Denmark and France

    DEFF Research Database (Denmark)

    Toulemon, Laurent; Knudsen, Lisbeth B.

    2006-01-01

    In both Denmark and France, the past decades have shown profound changes in the patterns of fertility as well as in family formation and family dissolution, with no related decline in overall fertility. Using very large data sets (380,000 respondents in the French survey, 1.3 million women...... in Danish Register data), we built synthetic indexes to show the frequency of stepfamilies in both countries. It is more frequent in Denmark than in France. We then analyse fertility of stepfamilies, compared to couples without any child born before the union, with controlling for age, duration of union...

  3. Practice and Problems in Denmark

    DEFF Research Database (Denmark)

    Larsen, Torben

    our practice gradually has arisen. With basis in the University of Aalborg, Denmark, the author has been involved in research and design of sea outfalls since the beginning of the seventies. It is controversial to give examples of dis-functioning sea outfalls by name and it has therefore been avoided...

  4. Elderly Turkish Migrants in Denmark

    DEFF Research Database (Denmark)

    Blaakilde, Anne Leonora; Petersen, Signe Sofia Gronwald; Yazici, Suzan

    simoultaneously translated from Turkish, English and Danish by the two interviewers; a medical doctor from Turkey and an ethnologist from Denmark. Results The interviews revealed a high level of functional illiteracy, low social and economic status and little language skills except for Turkish. From their life...

  5. Denmark in the Bologna Process

    DEFF Research Database (Denmark)

    Lauridsen, Karen M.

    The creation of the European Higher Education Area foreseen in the Bologna Declaration (1999) will facilitate inter-university co-operation by promoting the mobility and employability of European citizens. The article outlines the current development in Denmark, especially as regards the training...

  6. Denmark: consensus seeking and decentralization

    DEFF Research Database (Denmark)

    Andersen, Mikael Skou; Christiansen, Peter Munk; Winter, Søren

    1998-01-01

    Governance and Environment in Western Europe: Politics, Policy and Administration, provides an up-to-date overview of developments in this area focusing on a selection of ten countries in Western Europe and the European Union. The countries examined are: Denmark, France, Germany, Greece, Italy...

  7. Open Educational Resources in Denmark

    DEFF Research Database (Denmark)

    Harlung, Asger

    2010-01-01

    The report presents an overview of accessibility, content types,and educational levels of open Educational Resources for public school, high shcool, higher education, and citizen empowerment and enlightenment offered from educational institutions or via other internet sources in Denmark in late...

  8. Day-Care in Denmark

    DEFF Research Database (Denmark)

    Bundgaard, Helle

    2011-01-01

      The chapter explores central notions of appropriate social behavior in what is arguably the most important institution in Denmark when it comes to social integration, namely day-care, also known as pre-school. Moral values guiding everyday practices are generally taken for granted. When...

  9. Law and Protestantism in Denmark

    DEFF Research Database (Denmark)

    Tamm, Ditlev

    2016-01-01

    This contribution deals with the influence of the Reformation on the law in Denmark. The Reformation was basically a reform of the church, but it also affected the concept of law and state in general. In 1536, King Christian III dismissed the catholic bishops and withheld the property of the chur...

  10. Characterization of limestone reacted with acid-mine drainage in a pulsed limestone bed treatment system at the Friendship Hill National Historical Site, Pennsylvania, USA

    Science.gov (United States)

    Hammarstrom, J.M.; Sibrell, P.L.; Belkin, H.E.

    2003-01-01

    Armoring of limestone is a common cause of failure in limestone-based acid-mine drainage (AMD) treatment systems. Limestone is the least expensive material available for acid neutralization, but is not typically recommended for highly acidic, Fe-rich waters due to armoring with Fe(III) oxyhydroxide coatings. A new AMD treatment technology that uses CO2 in a pulsed limestone bed reactor minimizes armor formation and enhances limestone reaction with AMD. Limestone was characterized before and after treatment with constant flow and with the new pulsed limestone bed process using AMD from an inactive coal mine in Pennsylvania (pH = 2.9, Fe = 150 mg/l, acidity = 1000 mg/l CaCO3). In constant flow experiments, limestone is completely armored with reddish-colored ochre within 48 h of contact in a fluidized bed reactor. Effluent pH initially increased from the inflow pH of 2.9 to over 7, but then decreased to 6 during operation. Limestone removed from a pulsed bed pilot plant is a mixture of unarmored, rounded and etched limestone grains and partially armored limestone and refractory mineral grains (dolomite, pyrite). The ???30% of the residual grains in the pulsed flow reactor that are armored have thicker (50- to 100-??m), more aluminous coatings and lack the gypsum rind that develops in the constant flow experiment. Aluminium-rich zones developed in the interior parts of armor rims in both the constant flow and pulsed limestone bed experiments in response to pH changes at the solid/solution interface. ?? 2003 Elsevier Ltd. All rights reserved.

  11. Durability assessment of limestone subjected to surface treatments

    Science.gov (United States)

    Theodoridou, Magdalini; Charalambous, Cleopatra; Ioannou, Ioannis

    2017-04-01

    Weathering is inevitable in existing limestone structures due to their exposure to fluctuating and aggressive environmental conditions, such as wetting/drying, and the presence of salts. Therefore, conservation treatments are often deemed necessary in order to prevent or at least delay the progress of deterioration and to strengthen weathered stones. This paper focuses on the effect of an ethanol-based laboratory produced water repellent and three water-based commercial products (water repellent, pure acrylic emulsion mixed with a water repellent with thermal insulation properties and consolidant) on the durability and other properties of three different types of limestone (massive chalk, calcarenite and bioclastic limestone). All test specimens were subjected to micro-destructive cutting tests before/after the application of the aforementioned surface treatments to investigate changes in resistance to cutting on the area close to the treated surface. They were also subjected to two cycles of salt contamination with 20% w/w Na2SO4•10H2O solution by capillary absorption through their bottom face, until 2 mm of pore space was theoretically filled with salt crystals. Drying after salt contamination took place at 70 °C. The results of the micro-destructive cutting tests showed increases in cutting resistance at the topmost area (1-2 mm below the treated surface) of the massive chalk and the calcarenite, but no significant changes in the case of the rather non-homogeneous bioclastic limestone. At the same time, the performance of each surface treatment varied from lithotype to lithotype. The laboratory produced water repellent showed a generally better performance; no signs of damage were detected due to the formation of salt crystals within the pores of the materials, i.e. subflorescence, when applied on the calcarenite and the bioclastic limestone. Very poor performance was observed for all treatments when applied on the massive chalk. This accounted for (i

  12. Innovative Field Investigations in Limestone using a FACT-FLUTe

    DEFF Research Database (Denmark)

    Mosthaf, Klaus; Barrett Sørensen, Mie; Broholm, Mette Martina

    2015-01-01

    from the Water-FLUTe multilevels (Janniche et al. 2013 and 2013b) at the site. Method and technique The FLUTe Activated Carbon Technique was described e.g. in Janniche et al. (2013). The sorption of chlorinated ethenes on activated carbon was determined in laboratory experiments as described...... in Sørensen et al. (2014) to obtain equilibrium sorption coefficients (Kd) for individual and mixed chlorinated ethenes on activated carbon from aqueous solution. As the uptake on FACT in limestone aquifers will depend on transport (advection and/or diffusion and retardation by sorption) in the limestone...... matrix and fractures as well as on the sorption to activated carbon, a modeling tool was developed (Mosthaf et al. 2014) which allows for the interpretation of field data and the analysis of the influence of various aquifer parameters. The model provides a link between sorbed concentrations on the FACT...

  13. Cement substitution by a combination of metakaolin and limestone

    Energy Technology Data Exchange (ETDEWEB)

    Antoni, M., E-mail: mathieu.antoni@epfl.ch [EPFL-STI-IMX-Laboratoires des Materiaux de Construction, Station12, CH-1015 Lausanne (Switzerland); Rossen, J. [EPFL-STI-IMX-Laboratoires des Materiaux de Construction, Station12, CH-1015 Lausanne (Switzerland); Martirena, F. [CIDEM-UCLV, Universidad Las Villas, Santa Clara (Cuba); Scrivener, K. [EPFL-STI-IMX-Laboratoires des Materiaux de Construction, Station12, CH-1015 Lausanne (Switzerland)

    2012-12-15

    This study investigates the coupled substitution of metakaolin and limestone in Portland cement (PC). The mechanical properties were studied in mortars and the microstructural development in pastes by X-ray diffraction, thermogravimetry analysis, mercury intrusion porosimetry and isothermal calorimetry. We show that 45% of substitution by 30% of metakaolin and 15% of limestone gives better mechanical properties at 7 and 28 days than the 100% PC reference. Our results show that calcium carbonate reacts with alumina from the metakaolin, forming supplementary AFm phases and stabilizing ettringite. Using simple mass balance calculations derived from thermogravimetry results, we also present the thermodynamic simulation for the system, which agrees fairly well with the experimental observations. It is shown that gypsum addition should be carefully balanced when using calcined clays because it considerably influences the early age strength by controlling the very rapid reaction of aluminates.

  14. Induration and Biot’s Coefficient of Palaeogene Limestone

    DEFF Research Database (Denmark)

    Andreassen, Katrine Alling

    2017-01-01

    specimens aids in performing fluid substitution with Gassmann’s equation. For the soft H2 specimens the shear wave could not be obtained and isoframe modelling is applied. A correlation is found; although, the Biot coefficient for the intermediate indurations H3 and H4 overlap. The dry density is found...... to very competent/slightly metamorphic rock. The Biot coefficient links to the degree of cementation in the capacity of how it relates the elastic deformations with the change in pore pressure. A hypothesis is that the degree of induration could be correlated to the magnitude of the Biot coefficient....... This is tested on 11 Copenhagen Limestone specimens of varying porosity and densities obtained from one borehole with a limestone interval of 30 m. Their induration varies from H2 to H5. Elastic wave propagation measurements are used to establish the Biot coefficient and determination of the mineralogy for H5...

  15. Time-Dependent Rock Failure in a Heterogeneous Limestone

    Science.gov (United States)

    Roth, K.; Kemeny, J.

    2015-12-01

    Time-dependent rock failure is an important aspect in the analysis of long-term rock stability for slopes, dam and bridge foundations, and underground storage facilities. An on-going project at the University of Arizona is using Kartchner Caverns in Benson, Arizona as a natural analog to study such failure by reconstructing the process of natural cave breakdown with subcritical crack growth modeling. Breakdown is thought to occur along joints through the time-dependent failure of rock bridges: sections of intact rock separating discontinuities in a rock mass. The Escabrosa limestone composing the caverns ranges from a more homogenous, even-grained texture to a more heterogeneous texture consisting of coarse-grained veins and solution cavities set in a fine-grained matrix. To determine if the veined regions are more susceptible to fracturing and act as the nuclei of rock bridge failure, fracture toughness tests were conducted for both textures. The subcritical crack growth parameters were calculated using the constant stress-rate method. Results indicate that the more heterogeneous limestone has a higher fracture strength, fracture toughness, and subcritical crack growth index n than the more homogeneous limestone. This is in agreement with previous studies which found that a more complex and heterogeneous microstructure produces a larger microcrack process zone, leading to higher fracture energies and lower susceptibility to subcritical crack growth. Thus, despite their solution cavities, the calcite veins do not localize failure or act as planes of weakness; instead, rock bridges fail through the more homogeneous limestone matrix.

  16. Dolomitization of Quaternary reef limestones, Aitutaki, Cook Islands

    Science.gov (United States)

    Hein, J.R.; Gray, S.C.; Richmond, B.M.; White, L.D.

    1992-01-01

    The primary reef framework is considered to have been deposited during several highstands of sea level. Following partial to local recrystallization of the limestone, a signle episode of dolomitization occurred. Both tidal and thermal pumping drove large quantities of seawater through the porous rocks and perhaps maintained a wide mixing zone. However, the isotopic, geochemical and petrographic data do not clearly indicate the extent of seawater mixing. -from Authors

  17. Effect of SO2 Dry Deposition on Porous Dolomitic Limestones

    OpenAIRE

    Olaru, Mihaela; Aflori, Magdalena; Simionescu, Bogdana; Doroftei, Florica; Stratulat, Lacramioara

    2010-01-01

    The present study is concerned with the assessment of the relative resistance of a monumental dolomitic limestone (Laspra – Spain) used as building material in stone monuments and submitted to artificial ageing by SO2 dry deposition in the presence of humidity. To investigate the protection efficiency of different polymeric coatings, three commercially available siloxane-based oligomers (Lotexan-N, Silres BS 290 and Tegosivin HL 100) and a newly synthesized hybrid nanocomposite with silsesqui...

  18. Degradation behavior of limestone concrete under limited time sodium exposure

    International Nuclear Information System (INIS)

    Das, S.K.; Sharma, A.K.; Ramesh, S.S.; Parida, F.C.; Kasinathan, N.; Chellapandi, P.

    2009-01-01

    Adequate safety measures are taken during design, fabrication, construction and operation of liquid sodium cooled fast breeder reactor (FBR). However, possibility of sodium leak from secondary heat transport circuits of FBR has not been completely ruled out. In the areas housing sodium pipelines such as Steam Generator Building (SGB), spilled liquid sodium not only reacts with air causing fire but also interacts with structural concrete resulting in its degradation. The structural concrete can be protected from sodium attack using sodium resistant sacrificial concrete layer or steel/refractory liners. Moreover, design and construction of sloping floor with sodium collection pit helps in minimizing the mass of sodium accumulated on the floor and exposure period. Sacrificial concrete layer on the structural concrete should meet key factors like economy, castability, easy removal of affected concrete in the event of a sodium fire and disposability of debris apart from its good resistance against hot burning sodium. Present study is directed towards testing of limestone concrete blocks (made out of 13% ordinary portland cement, 8% water, 48% coarse limestone and 31 % fine limestone aggregates)

  19. Biogenic magnetite as a primary remanence carrier in limestone deposits

    Science.gov (United States)

    Chang, Shih-Bin R.; Kirschvink, Joseph L.; Stolz, John F.

    1987-06-01

    Studies on the microbial communities and magnetic phases of samples collected from carbonate oozes at Sugarloaf Key, FL, U.S.A. and calcareous laminated sediments from Laguna Figueroa, Baja California, Mexico have revealed the existence of magnetotactic bacteria and ultrafine-grained single domain magnetite in both environments. Magnetotactic bacteria were identified by light and electron microscopy. The single domain magnetite was detected by coercivity spectra analysis with a SQUID magnetometer and examined under the transmission electron microscope. The similarity, in terms of size and shape, between the single domain magnetite found in these sediments and the magnetite observed in the bacterial magnetosome from enriched cultures indicates the ultrafine-grained magnetite in these two marine environments was biologically formed. These results, combined with the common occurrences of ultrafine-grained magnetite in limestone deposits detected rock magnetically, suggest biogenic magnetite may be present and contribute to the magnetic remanence in these rocks. Several Cambrian limestone samples, separately collected from Siberia, China, and Kazakhstan, were examined for the presence of bacterial magnetite. Samples from the Lower Cambrian Sinskian Formation at Siberia Platform were found to contain both a large amount of apparently bacterial magnetite particles and a very stable primary magnetic component. Post-Cambrian diagenesis does not seem to affect the microgranulometry of these apparently bacterial magnetite crystals or the magnetic remanence carried by them. Assessing the potential role of biogenic magnetite as a primary remanence carrier in other Phanerozoic limestone deposits ought to be further pursued.

  20. Development of gypsum alteration on marble and limestone

    Science.gov (United States)

    McGee, E.S.

    1996-01-01

    Blackened alteration crusts of gypsum plus particulates that form on sheltered areas on marble and limestone buildings pose a challenge for rehabilitation and cleaning. Fresh marble and limestone samples exposed at monitored exposure sites present conditions of simple geometry and well-documented exposures but have short exposure histories (one to five years). The gypsum alteration crusts that develop on these samples provide insight into the early stages and rate of alteration crust formation. Alteration crusts from buildings give a longer, but less well known exposure history and present much more complex surfaces for gypsum accumulation. Integrated observations and measurements of alteration crusts from exposure samples and from buildings identify four factors that are important in the formation and development of alteration crusts on marble and limestone: (1) pollution levels, (2) exposure to rain or washing, (3) geometry of exposure of the stone surface, and (4) permeability of the stone. The combination of these factors contributes to both the distribution and the physical characteristics of the gypsum crusts which may affect cleaning decisions.

  1. Adsorption of anionic surfactants in limestone medium during oil recovery

    Energy Technology Data Exchange (ETDEWEB)

    Canbolat, Serhat; Bagci, Suat [Middle East Technical Univ., Dept. of Petroleum and Natural Gas Engineering, Ankara (Turkey)

    2004-07-15

    Foam-forming surfactant performance was evaluated by several experimental methods (interfacial tension, foam stability, corefloods) using commercial surfactants. There is considerable interest in the use of foam-forming surfactants for mobility control in water flood. To provide effective mobility control, the injected surfactant must propagate from the injection well toward the production well. One of the important parameters affecting propagation of foam-forming surfactant through the reservoir is the retention of surfactant due to its adsorption on reservoir rock. The determination of the adsorption of foam-forming surfactants in limestone reservoirs is important for the residual oil recovery efficiency. Adsorption measurements, recovery efficiencies, and surfactant and alkaline flooding experiments carried out with the representative of the selected surfactants alkaline solutions, linear alkyl benzene sulphonic acid (LABSA), sodium lauryl ether sulfate (SLES), and NaOH in a limestone medium. These surfactants were selected with respect to their foaming ability. Calibration curves formed by pH measurements were used to determine the correct adsorption amount of the used surfactants and recovery efficiency of these surfactants compared with base waterflooding. The results showed that LABSA adsorbed more than SLES in limestone reservoirs. The recovery efficiency of SLES was higher than the recovery efficiency of LABSA, and they decreased the recovery efficiency with respect to only the water injection case. (Author)

  2. Thermo-poroelastic response of an argillaceous limestone

    Science.gov (United States)

    Selvadurai, Patrick; Najari, Meysam

    2016-04-01

    Argillaceous limestones are now being considered by many countries that intend to develop deep geologic storage facilities for siting both high-level and intermediate- to low-level nuclear fuel wastes. In deep geologic settings for high level nuclear wastes, the heating due to radioactive decay is transmitted through an engineered barrier, which consists of the waste container and an engineered geologic barrier, which consists of an encapsulating compacted bentonite. The heat transfer process therefore leads to heating of the rock mass where the temperature of the rock is substantially lower than the surface temperature of the waste container. This permits the use of mathematical theories of poroelastic media where phase transformations, involving conversion of water to a vapour form are absent. While the thermo-poroelastic responses of geologic media such as granite and porous tuff have been investigated in the literature, the investigation of thermo-poroelastic responses of argillaceous limestones is relatively new. Argillaceous limestones are considered to be suitable candidates for siting deep geologic repositories owing to the ability to accommodate stress states with generation of severe defects that can influence their transmissivity characteristics. Also the clay fraction in such rocks can contribute to long term healing type phenomena, which is a considerable advantage. This research presents the results of a laboratory investigation and computational modelling of the same that examines the applicability of the theory of thermo-poroelasticity, which extend Biot's classical theory of poroelasticity to include uncoupled heat conduction. The experimental configuration involves the boundary heating of a cylinder of the Cobourg Limestone from southern Ontario, Canada. The cylinder measuring 150 mm in diameter and 278 mm in length contains an axisymmetric fluid-filled cylindrical cavity measuring 26 mm in diameter and 139 mm in length. Thermo-poroelastic effects

  3. Incidence of sialolithiasis in Denmark

    DEFF Research Database (Denmark)

    Schrøder, Stine Attrup; Andersson, Mikael; Wohlfahrt, Jan

    2017-01-01

    Sialolithiasis is a frequent disorder affecting the salivary glands. The incidence rate (IR) has been reported to be 2.9-5.5 per 100,000 person-years, but all previous studies have been based on selected hospital data. In this study, we conducted a population-based study evaluating the IR...... of sialolithiasis and the IR variation according to age, gender and geography in Denmark. We included data from hospitals as well as from private ear, nose and throat (ENT) clinics. The study was based on registry data on all sialolithiasis cases in Denmark between 2003 and 2009 extracted from the Danish National...... Patient Registry (hospital cohort) and the Danish Regions Centre for Healthcare Statistics (private ENT clinic cohort). To validate the diagnosis, the proportion of visually confirmed cases was estimated based on patient records from subsamples of the two cohorts. The IR was 7.27 and 14.10 per 100...

  4. Invasive alien birds in Denmark

    DEFF Research Database (Denmark)

    Fox, Anthony David; Heldbjerg, Henning; Nyegaard, Timme

    2015-01-01

    Avian Introduced Alien Species (IAS) constitute a threat to the integrity of native biodiversity, the economy and human health, so here we briefly review some of the problems posed by such species around the world in relation to such bird species in Denmark. A new European Union Regulation...... on Invasive Alien Species implemented in January 2015 establishes a framework for actions to combat alien species, which requires Member States to prevent the spread of alien species, provide early warning and rapid responses to their presence and management of established alien species where they occur. We...... show the importance of mechanisms such as DOF’s (Dansk Ornitologisk Forening, BirdLife Denmark) Atlas project, Common Bird Census (breeding and wintering species) and DOFbasen to contribute data on the current geographical and numerical distribution of the few serious alien avian species already...

  5. Invasive alien birds in Denmark

    DEFF Research Database (Denmark)

    Nyegaard, Timme; Heldbjerg, Henning; Fox, Anthony David

    Avian Introduced Alien Species (IAS) constitute a threat to the integrity of native biodiversity, the economy and human health, so here we briefly review some of the problems posed by such species around the world in relation to bird species in Denmark. A new European Union Regulation on Invasive...... Alien Species implemented in January 2015 requires a framework for actions to combat alien species, which requires Member States to prevent the spread of alien species, provide early warning and rapid responses to their presence and management of established alien species where they occur. We show...... the importance of mechanisms such as DOFs (Danish Ornithological Society, BirdLife Denmark) Atlas project, Common Bird Monitoring (breeding and wintering species) and DOFbasen to contribute data on the current geographical and numerical distribution of the few serious alien avian species already present...

  6. The Risoe National Laboratory, Denmark

    International Nuclear Information System (INIS)

    Majborn, B.

    2001-01-01

    The Risoe National Laboratory of Denmark started as a nuclear research centre, under the Atomic Energy Commission in 1955, with research reactors, an accelerator and related facilities. The research component, aimed at the introduction of nuclear power plants in Denmark, was wound up in 1985 with the country deciding to forego nuclear power in its energy planning. From 1993 the centre is under the jurisdiction of the Ministry of Research with three main areas of work: i) research on high international level; ii) train researchers; and iii) provide service to industry. The centre is funded up to 53% by the Danish Government and 47% by contract earnings. Some areas of current research include: i) materials science; ii) optics and sensor systems; iii) plant production and ecology; and iv) systems analysis. The nuclear component of the research centre is related to the operation of the nuclear facilities and for maintaining national expertise in nuclear safety and radiation protection. (author)

  7. Accessing social rights in Denmark

    DEFF Research Database (Denmark)

    Jacqueson, Catherine

    2015-01-01

    are in decreasing order Polish, German and British nationals. Debates among politicians reflected in the media have since the enlargement of the EU to 10 new Member States in 2004 focused on and off on the issue of access by migrants to social benefits and the issue of social tourism. The debate and discussions......The aim of this report is to give an overview of the Danish system relating to immigration and welfare rights in order to identify the various barriers to the free movement of Union citizens and their family members. This report addresses the legal and cultural framework, how it works in practice......, and the attitude of main actors, such as the media and political parties. It thus looks both at theory and practice. EU-based migration to Denmark is still relatively low, and is essentially exercised by workers and students. Apart from Scandinavians, the most representative EU-citizens actually living in Denmark...

  8. Rethinking Project Management in Denmark

    DEFF Research Database (Denmark)

    Svejvig, Per

    2012-01-01

    and methodologies for project management has been fairly static and has therefore received substantial criticism for a lack of relevance to practice. Several scholars have therefore started to think more widely about projects and project management conceptualized as rethinking project management. However this theme......Projects are everywhere across different sectors, industries and countries. Project management is no longer a sub-discipline of engineering and other rather technical disciplines but is also used for many other purposes. Even though practice has changed dramatically over the years, the models...... has lived a somewhat quiet life in Denmark, which leads to the purpose of this chapter, which is to set the stage for rethinking project management in Denmark. The chapter is based on an empirical study within the Danish project management community and beyond where we discuss this rethinking process...

  9. Oncoplastic breast surgery in Denmark

    DEFF Research Database (Denmark)

    Klit, Anders; Henriksen, Trine Foged; Siersen, Hans Erik

    2014-01-01

    With improved survival rates after breast cancer treatment, more attention is drawn to improve the cosmetic outcome after surgical treatment of breast cancer. In this process the oncoplastic breast surgery was conceived. It supplements the traditional surgical treatments (mastectomy and breast...... conserving surgery) with increased focus on individualized therapy. The ambition is to obtain the best possible cosmetic outcome without compromising recurrence rates and survival. This article provides an overview of the current oncoplastic breast surgery treatment offered in Denmark....

  10. Experiences with biomass in Denmark

    DEFF Research Database (Denmark)

    Gregg, Jay Sterling; Bolwig, Simon; Solér, Ola

    The Bioenergy Department in SENER have requested assistance with planning for the deployment of bioenergy (Biomass, biogas and waste incineration) in Mexico and information on Danish experiences with developing policy initiatives promoting bioenergy. This introduction to the Danish experiences...... with biomass use is compiled as preparation for SENER’s potential visit to Denmark in 2014. This report was prepared 19 June, 2014 by DTU System Analysis to Danish Energy Agency (DEA) as part of a frame contract agreement....

  11. Morphine: oxycodone interventions in Denmark

    DEFF Research Database (Denmark)

    Munk Mikkelsen, Camilla; Andersen, Stig Ejdrup

    2012-01-01

    , morphine is more cost effective than oxycodone. In primary care, in particular, the price of oxycodone is about 2–3 times higher than that of morphine. Public health insurance in Denmark pays up to 80% of the medication costs for patients in primary care and the regions pays all costs for patients...... in hospital care. On this basis, it is economically very important that drug use in both sectors …...

  12. Brucellosis in immigrants in Denmark.

    Science.gov (United States)

    Eriksen, Nanna; Lemming, Lars; Højlyng, Niels; Bruun, Brita

    2002-01-01

    Brucellosis is a rarely encountered infection in northern Europe. We report 4 cases of Brucella abortus bacteremia occurring in Denmark during 1999-2000. The clinical presentation was characteristically vague and brucellosis was not suspected by the attending physicians, partly because incomplete patient histories were obtained as a result of language barriers. The diagnosis was finally established by means of blood cultures, which were performed because of fever of unknown origin.

  13. Released from Prison in Denmark

    DEFF Research Database (Denmark)

    Olesen, Annette; Storgaard, Anette

    2016-01-01

    In 2010 a cross-sectorial reentry framework was launched as the ‘Schedule of the Good Release’. The ambition was to implement the actions outlined in the Schedule to all prisons and municipalities in Denmark to strengthen the cross-sectorial collaboration concerning parole and to support the paro......In 2010 a cross-sectorial reentry framework was launched as the ‘Schedule of the Good Release’. The ambition was to implement the actions outlined in the Schedule to all prisons and municipalities in Denmark to strengthen the cross-sectorial collaboration concerning parole and to support...... the parolees. The primary purpose of the Schedule was to prevent crime and secure parolees’ rights to social security and support. This chapter focuses on parolees in Denmark; their experiences of transitioning from prison back into society and life after prison; and whether the Danish state’s reentry...... ambitions can be mirrored in the parolees’ first-hand experiences. Our findings suggest that parolees experienced their reentry as chaotic; that their supervision lacked vision; and ‘informal’ punishment was severe and permeated their lives post-prison....

  14. The Western Denmark Cardiac Computed Tomography Registry

    DEFF Research Database (Denmark)

    Nielsen, Lene Hüche; Nørgaard, Bjarne Linde; Tilsted, Hans-Henrik

    2015-01-01

    BACKGROUND: As a subregistry to the Western Denmark Heart Registry (WDHR), the Western Denmark Cardiac Computed Tomography Registry (WDHR-CCTR) is a clinical database established in 2008 to monitor and improve the quality of cardiac computed tomography (CT) in Western Denmark. OBJECTIVE: We...... positive and negative predictive values for both university (96%/99%) and nonuniversity centers (97%/99%). CONCLUSION: WDHR-CCTR provides ongoing prospective registration of all cardiac CTs performed in Western Denmark since 2008. Overall, the registry data have a high degree of completeness and validity...

  15. Physical Deterioration of Egyptian Limestone Affected by Saline Water

    Directory of Open Access Journals (Sweden)

    Mohammed EL-GOHARY

    2013-12-01

    Full Text Available This study is the second in a series of experiments that describe the chemical, physical and thermal properties of archaeological limestone affected by salt and saline water in Egypt. This research aims to study the aggressive physical effects of different types of salts dominated in saline water and their different mechanisms on the acceleration of weathering processes that affect Egyptian limestone. It presents a multidisciplinary approach to characterize, at both micro/macro scales, the behavior of a limestone widely used as a construction material in most of Egyptian monuments when interacting with some types of salt solutions of various concentrations. A systematic optical, morphological, physical and mechanical analysis of the fresh and weathered stone samples were used to evaluate different characteristics through using scientific some techniques such as optical microscope (OP and scanning electron microscope (SEM. In addition to the using of some special computer programs that were used to define different physical and mechanical properties such as weight changes, bulk density, total porosity, water uptake, water content, thermal dilatation and abrasion resistant. The results proved that all investigated samples were gradually affected by the types of salinity paths and salt concentrations. These results will serve as a database for the future comparison of long term behavior of stones before and after the planned conservation of the entire area. So, it is pertinent to device some scientific methods and interventions to reduce all factors of salt effects and removing their harmful aspects from historic fabric of the archaeological buildings through some scientific recommendations

  16. Modelling of Limestone Dissolution in Wet FGD Systems: The Importance of an Accurate Particle Size Distribution

    DEFF Research Database (Denmark)

    Kiil, Søren; Johnsson, Jan Erik; Dam-Johansen, Kim

    1999-01-01

    Danish limestone types with very different particle size distributions (PSDs). All limestones were of a high purity. Model predictions were found to be qualitatively in good agreement with experimental data without any use of adjustable parameters. Deviations between measurements and simulations were...... attributed primarily to the PSD measurements of the limestone particles, which were used as model inputs. The PSDs, measured using a laser diffrac-tion-based Malvern analyser, were probably not representative of the limestone samples because agglomeration phenomena took place when the particles were......In wet flue gas desulphurisation (FGD) plants, the most common sorbent is limestone. Over the past 25 years, many attempts to model the transient dissolution of limestone particles in aqueous solutions have been performed, due to the importance for the development of reliable FGD simu-lation tools...

  17. Hydration of Blended Portland Cements Containing Calcium-Aluminosilicate Glass Powder and Limestone

    DEFF Research Database (Denmark)

    Moesgaard, Mette; Poulsen, S.L.; Herfort, D.

    2012-01-01

    This work investigates the hydration of blended Portland cement containing 30 wt.% Na2O-CaO-Al2O3-SiO2 (NCAS) glass particles either as the only supplementary cementitious material (SCM) or in combination with limestone, using 29Si MAS NMR, powder XRD, and thermal analyses. The NCAS glass...... of hydration. The hydrated glass contributes to the formation of the calcium-silicate-hydrate (C-S-H) phase, consuming a part of the Portlandite (Ca(OH)2) formed during hydration of the Portland cement. Furthermore, the presence of the glass and limestone particles, alone or in combination, results...... in an accelerated hydration for alite (Ca3SiO5), the main constituent of Portland cement. A higher degree of limestone reaction has been observed in the blend containing both limestone and NCAS glass as compared to the limestone – Portland mixture. This reflects that limestone reacts with a part of the alumina...

  18. Studying landscape architecture in Denmark

    DEFF Research Database (Denmark)

    Braae, Ellen Marie; Hare, Richard Andrew

    2010-01-01

    s demanded large numbers of landscape architects. Today landscape architecture education addresses current challenges of climate change and the need for sustainable development where an understanding of natural systems is seen as essential for future urbanisation processes in evermore innovative......Landscape architecture is a well-established profession in Denmark. From the early 20th Century the profession developed steadily. However, it was 1960 before a separate education was established. This proved timely as the immense physical development of the Danish welfare state of the 1970s and 80...

  19. HOMED-Homicides Eastern Denmark

    DEFF Research Database (Denmark)

    Colville-Ebeling, Bonnie; Frisch, Morten; Lynnerup, Niels

    2014-01-01

    Background:An introduction to a forensic medical homicide database established at the Department of Forensic Medicine in Copenhagen. Content: The database contains substantial clinical and demographic data obtained in conjunction with medico-legal autopsies of victims and forensic clinical...... examinations of perpetrators in homicide cases in eastern Denmark. Validity and coverage: The database contains information on all homicide cases investigated at the Department of Forensic Medicine in Copenhagen since 1971. Coverage for the catchment area of the department is assumed to be very good because...

  20. eHealth in Denmark

    DEFF Research Database (Denmark)

    Kierkegaard, Patrick

    2013-01-01

    Denmark is widely regarded as a leading country in terms of eHealth integration and healthcare delivery services. The push for eHealth adoption over that past 20 years in the Danish health sector has led to the deployment of multiple eHealth technologies. However, in reality the Danish healthcare...... suffers from eHealth system fragmentation which has led to eHealth's inability to reach full potential in delivering quality healthcare service. This paper will presents a case study of the current state of eHealth in the Danish healthcare system and discuss the current challenges the country is facing...

  1. Studying landscape architecture in Denmark

    DEFF Research Database (Denmark)

    Braae, Ellen Marie; Hare, Richard Andrew

    2010-01-01

    Landscape architecture is a well-established profession in Denmark. From the early 20th Century the profession developed steadily. However, it was 1960 before a separate education was established. This proved timely as the immense physical development of the Danish welfare state of the 1970s and 80......s demanded large numbers of landscape architects. Today landscape architecture education addresses current challenges of climate change and the need for sustainable development where an understanding of natural systems is seen as essential for future urbanisation processes in evermore innovative...

  2. RIO Country Report Denmark 2014

    DEFF Research Database (Denmark)

    Grimpe, Christoph

    The report offers an analysis of the R&I system in Denmark for 2014, including relevant policies and funding, with particular focus on topics critical for two EU policies: the European Research Area and the Innovation Union. The report was prepared according to a set of guidelines for collecting...... and analysing a range of materials, including policy documents, statistics, evaluation reports, websites etc. The report identifies the structural challenges of the Danish research and innovation system and assesses the match between the national priorities and those challenges, highlighting the latest policy...

  3. Building Local Governance in Denmark

    DEFF Research Database (Denmark)

    Damgaard, Bodil

    Local partnerships have become an important strategic element in active social policy in Denmark. In order to progress towards the parallel objectives of increasing employment rates and creating a more open and inclusive labour market, improving local collaboration is considered paramount......, issues treated, resources available, and influence vis-à-vis the municipality and vis-à-vis enterprises and workers. The results of the empirical analysis are used to discuss theoretical aspects related to the ongoing governance debate. Most governance literature emphasise the potential of involving...

  4. Limestone particle size and artificial light for laying hens in the second laying cycle

    Directory of Open Access Journals (Sweden)

    Alexsandro Nunes de Oliveira

    2013-07-01

    Full Text Available The experiment was conducted to evaluate the effects of limestone particle size and the use of artificial light for laying hens in the second laying cycle. We used 240 Hisex White laying hens at 82 weeks of age in a completely randomized design in a 5 × 2 factorial arrangement, resulting in 10 treatments with 4 replicates of 6 birds. The variables were the five particle sizes obtained by increasing the proportion of thick limestone (0, 25, 50, 75 and 100% compared with thin limestone and two lighting programs: with and without artificial light. Limestone particle size and light did not affect performance or egg quality. However, there were changes in bird feeding schedule throughout the day as a response to the lighting program. Bone quality, density and mineral content of the tibia were not affected by the treatments, but limestone particle size had a quadratic effect of on bone deformity and strength, obtaining maximum inclusion points with 63% and 59% of thick limestone, respectively. The use of large particles of limestone in the diet and the use of a lighting program does not influence the performance and quality of the eggs of laying hens in the second production cycle, but the use of a proportion of 63.3 g of average particle size (0.60 mm replacing the fine limestone (0.23 mm per 100 g of total limestone added to the diet improves bone quality in these birds.

  5. Coralgal facies of the Upper Eocene-Lower Oligocene limestones in Letca-Rastoci area

    Directory of Open Access Journals (Sweden)

    Ioana Prica

    2001-09-01

    Full Text Available In this paper are described the coralgal facies identified in the Upper Eocene-Lower Oligocene limestone succession (Cozla Formation outcropping in two quarries at Letca and Rastoci (Sălaj district, Romania. In the studied profiles the coral and algae limestones are interlayered with bioclastic limestones with foraminifera. On the top of relatively deep water deposits, coral and algae crusts and dendritic corals coated by algae were deposited. The environment registered a gradual deepening, the deposits being completely immersed, while bioclastic limestones with foraminifera were recurrently formed. This cycle is repeated, the whole succession being caracterized by several such “parasequences”.

  6. Electrokinetically Enhanced Delivery for ERD Remediation of Chlorinated Ethenes in a Fractured Limestone Aquifer

    DEFF Research Database (Denmark)

    Broholm, Mette Martina; Hyldegaard, Bente Højlund; With Nedergaard, Lærke

    Leakage of the chlorinated solvents PCE and TCE into limestone aquifers from contaminated overburden and the long-lasting back diffusion from the secondary source in the limestone matrix pose a severe risk for contamination of drinking water resources. Dechlorination of PCE and TCE in limestone...... that enhanced reductive dechlorination (ERD) by the addition of donor and specific degraders (KB1® culture) can lead to complete dechlorination of PCE and TCE in the limestone aquifer, provided sufficient contact between specific degraders, donor and specific degraders, is obtained. Advection-based delivery...

  7. Laser removal of water repellent treatments on limestone

    Science.gov (United States)

    Gómez-Heras, Miguel; Alvarez de Buergo, Mónica; Rebollar, Esther; Oujja, Mohamed; Castillejo, Marta; Fort, Rafael

    2003-12-01

    Protective and water repellent treatments are applied on stone materials used on buildings or sculptures of artistic value to reduce water intrusion without limiting the natural permeability to water vapour of the material. The effect of the wavelength associated with the laser removal of two water repellent treatments applied on limestone, Paraloid B-72, a copolymer of methyl acrylate and ethyl methacrylate, and Tegosivin HL-100, a modified polysiloxane resin, was investigated by using the four harmonics of a Q-switched Nd:YAG laser (1064, 532, 355 and 266 nm). The modifications induced on the surface of limestone samples by laser irradiation were studied using colorimetry, roughness measurements and scanning electron microscopy (SEM). The removal of the treatments was found to be dependent on the laser irradiation conditions and on the characteristics of the coatings. The fundamental laser radiation was effective in removing both treatments, but thermal alteration processes were induced on the constituent calcite crystals. The best results were obtained by irradiation in the near UV at 355 nm.

  8. Neutralization of the Tamagawa thermal acid water with crushed limestone

    Energy Technology Data Exchange (ETDEWEB)

    Umetsu, Yoshio (Iwate Univ., Faculty of Engineering, Iwate, (Japan))

    1989-06-30

    The Tamagawa hot spring, Akita Prefecture, is a hidrochloric and n sulfuric acid hot spring with 98{sup 0}C in water temperature, 9m{sup 3}/min in artesian flow rate and 1.2 in pH. In order to cope with projected dam construction downstream, an in situ test was carried out for the water neutralization with crushed limestone, in which test was used a plastic cylinder cone type reactor, 60{sup 0}C in angle of repose, reinforced with glass fiber. Hot spring water was introduced into the reactor from its bottom and ran as countercurrent through the reactor. In a neutralization test with a use of crushed limestone, 5 to 25mm in grain size, the neutralization rate attained to 80.5%, when acid water containing 1300mgl/sup -1/ So{sub 4}/sup 2-/ was treated at 50{sup 0}C with the residence time of five minutes. If water of the Tamagawa hot spring is 95% neutralized to 75% in neutralization rate, the dam body point 22km downstream is expectable to rise from 3 to over 4.3 in pH. 7 refs., 13 figs., 1 tab.

  9. The effect of water on the sulphation of limestone

    Energy Technology Data Exchange (ETDEWEB)

    Chunbo Wang; Lufei Jia; Yewen Tan; E.J. Anthony [North China Electric Power University, Baoding City (China). School of Energy and Power Engineering

    2010-09-15

    A series of tests was conducted in a thermogravimetric analyzer (TGA) to study the sulphation behaviour of limestone in the presence of water over the temperature range of 800-850{sup o}C. Four different Canadian limestones, all with a particle size range of 75-425 {mu}m, were sulphated using a synthetic flue gas with a composition of 15% CO{sub 2}, 3% O{sub 2}, 0% or 10% H{sub 2}O, 1750 ppm SO{sub 2} and the balance N{sub 2}. Water was shown to have a significant promotional effect on sulphation, especially in the diffusion-controlled stage. However, the effect of water during the kinetic-controlled stage appeared to be much less pronounced. Based on these results, it is proposed that the presence of water leads to the transient formation of Ca(OH){sub 2} as an intermediate, which in turn reacts with SO{sub 2} at a faster rate than CaO does. Alternatively stated, it appears that H{sub 2}O acts as catalyst for the sulphation reaction of CaO. 30 refs., 8 figs., 3 tabs.

  10. The influence of reclamation to malaco - assemblages of limestone quarry

    Science.gov (United States)

    Kupka, J.; Svehlakova, H.; Beranek, J.; Lokajickova, B.

    2017-10-01

    Quarries fundamentally change the character of the landscape, both in the mined parts and in its immediate surroundings. Inside the mined areas, there are many different types of microbiotopes, their character is very different from the surrounding ecosystem. Destruction of original biotopes is an opportunity for settlement by new plant and animal communities. To monitor these biodiversity changes in the landscape, appropriate groups of organisms are used. Only a bioindicator that is well processable from a taxonomic point of view and its demands on the environment and its distribution are well-known, gives reliable results. For these reasons, less moving molluscs are used in many works. The territory of the southern part of the Devonian limestone of the Moravian Karst is affected by the industrial mining of limestone. There is forest quarry in Lisen, which was ended in 1997 and a few years later reclamation work was started on parts of the mined area. The study of molluscs in this model territory was used to assess the impact of reclamation methods on the malaco - assemblage’s diversity inside the quarry.

  11. Oral contraception in Denmark 1998-2010

    DEFF Research Database (Denmark)

    Wilson, Nadia M; Laursen, Maja; Lidegaard, Øjvind

    2012-01-01

    Oral contraceptives (OC) are the most popular contraception in Denmark. Overall figures on use are well described, but more detailed use patterns according to type and age need to be updated.......Oral contraceptives (OC) are the most popular contraception in Denmark. Overall figures on use are well described, but more detailed use patterns according to type and age need to be updated....

  12. Socioeconomic differences in health expectancy in Denmark

    DEFF Research Database (Denmark)

    Brønnum-Hansen, Henrik

    2000-01-01

    Social differences in mortality rates reported in Denmark gave rise to the present study of health expectancy in different socioeconomic groups.......Social differences in mortality rates reported in Denmark gave rise to the present study of health expectancy in different socioeconomic groups....

  13. The BRICS and Denmark - Economics & High Politics

    DEFF Research Database (Denmark)

    Skak, Mette

    2013-01-01

    Denmark's otherwise strategic opening towards the BRICS (Brazil, Russia, India, China and South Africa) lacks the world order dimension of raison de système.......Denmark's otherwise strategic opening towards the BRICS (Brazil, Russia, India, China and South Africa) lacks the world order dimension of raison de système....

  14. Live and work in North Denmark

    DEFF Research Database (Denmark)

    Christensen, Sascha; Pristed Nielsen, Helene

    This report is based on a survey among Expats in North Denmark, and was carried out in collaboration with 'Velkomstcentre - live and work in North Denmark'. It includes findings about the backgrounds of the Expats, their motives for coming to the region and their perceptions of the region before...

  15. The Nordic countries and China - Denmark

    DEFF Research Database (Denmark)

    Jakobsen, Uffe

    2018-01-01

    Usually, Denmark is considered a ‘small state’ and China as one of world’s leading powers, however, Denmark and China have a ‘comprehensive strategic partnership’ signed by the two states in 2008. In this section we will account for this extraordinary relationship by briefly analysing the history...

  16. Farming of Freshwater Rainbow Trout in Denmark

    DEFF Research Database (Denmark)

    Jokumsen, Alfred; Svendsen, Lars Moeslund

    Textbook on Farming of Freshwater Rainbow Trout in Denmark. Danish edition with the title: Opdræt af regnbueørred i Danmark......Textbook on Farming of Freshwater Rainbow Trout in Denmark. Danish edition with the title: Opdræt af regnbueørred i Danmark...

  17. Becoming adult educators in Denmark

    DEFF Research Database (Denmark)

    Milana, Marcella; Søgaard Lund, Lise

    2009-01-01

    In this paper we present an analysis of identity-construction processes among adult educators in Denmark and we address the question how adult educators develop professionalism, not least by taking advantage of existing opportunity structures for current and prospective adult educators. A between...... identification with the professional group they belong to. It is our hypothesis that occupations adult educators currently hold, however, play a central role in shaping the ideal for service that adult educators enact when teaching adults.......In this paper we present an analysis of identity-construction processes among adult educators in Denmark and we address the question how adult educators develop professionalism, not least by taking advantage of existing opportunity structures for current and prospective adult educators. A between......-cases analysis of fifteen narrative interviews explores the professional pathways towards adult education, the perceived images of a (professional) adult educator, processes of identification with concrete or imaginary communities, and motivation for adult educator to enrol in current opportunity structures...

  18. Denmark

    DEFF Research Database (Denmark)

    Lemming, Jørgen Kjærgaard; Øster, Flemming; Thomassen, H.

    2008-01-01

    The European Tort Law Yearbook provides a comprehensive overview of the latest developments in tort law in Europe. It contains reports on most EU Member States, including the new Member States the Czech Republic, Estonia, Hungary, Latvia, Lithunia, Poland, Slovakia, Slovenia, Bulgaria and Romania....

  19. Denmark

    DEFF Research Database (Denmark)

    Dahl, Torben; Møller, Winnie Friis; Elle, Morten

    2009-01-01

    This publication summarises the activities of the COST C23 Action entitled ‘Strategies for a Low Carbon Urban Built Environments (LCUBE)’ which took place over the period 2004 to 2009. This publication is supported by COST. The main objective of the COST C23 Action was to investigate, through a n...

  20. Denmark

    DEFF Research Database (Denmark)

    Jacobsen, H.; Larsen, Hans Hvidtfeldt; Morthorst, P.E.

    2006-01-01

    This project has investigated outward foreign direct investments from the Nordic economies, and analysed the role domestic multinational companies play in their respective Nordic home economies. The project consisted of a desktop study of existing research, a quantitative study of FDI flows and t...

  1. Denmark

    DEFF Research Database (Denmark)

    Andreassen, Rikke

    2016-01-01

    on the kinds of gendered understanding that underline research surveys like the WIME project and discusses the potential limitations of this approach to gender analysis. Furthermore, it discusses the benefits and potential problems of applying gender inclusive policies to media institutions by drawing upon....... Using this concept, this article critically discussed diversity policies and gender equality policies as they apply to media institutions....

  2. Denmark

    DEFF Research Database (Denmark)

    Wivel, Anders

    2013-01-01

    Despite a change of government in September 2011, Danish politics have been largely characterised by continuity since the beginning of the economic crisis in 2008, although with an increased emphasis on reforming the welfare state in order to increase growth and create new jobs. A pragmatist turn...... in domestic and foreign policy priorities across the political spectrum has left economic austerity at centre stage, whereas the promotion of values at home and abroad plays a more marginal role than previously. The Baltic Sea Region (BSR) continues to play a role in Danish foreign policy, with the Danish...

  3. Denmark

    DEFF Research Database (Denmark)

    Kosiara-Pedersen, Karina

    2016-01-01

    on the kinds of gendered understanding that underline research surveys like the WIME project and discusses the potential limitations of this approach to gender analysis. Furthermore, it discusses the benefits and potential problems of applying gender inclusive policies to media institutions by drawing upon...

  4. Denmark

    DEFF Research Database (Denmark)

    Sørensen, Per

    2013-01-01

    This book examines the political consequences of European security commercialisation through increased reliance on private military and security companies (PMSCs). The role of commercial security in the domestic setting in Europe is widely acknowledged; after all, the biggest private security com...

  5. Denmark

    DEFF Research Database (Denmark)

    Kosiara-Pedersen, Karina

    2017-01-01

    The Liberal minority government, Lars Løkke Rasmussen II, which took office after the general election in June 2015 (Kosiara-Pedersen 2016), struggled with its parliamentary support parties and ended up including two of them in another minority coalition government, Lars Løkke Rasmussen III....... Besides that, 2016 was a rather peaceful year in Danish politics....

  6. Denmark

    DEFF Research Database (Denmark)

    Bjerg Bennike, Kathrine; Stoltz, Pauline

    2015-01-01

    The chapter aims at creating awareness of Denmark’s involvement in gender and human security (HS) issues on multiple levels, including the Baltic Sea Region. The chapter addresses HS with a focus on economic, political and social indicators. It is argued that the Nordic welfare state has been...... and still is influential in terms of Denmark’s response to gender and HS. The chapter further examines the Danish women’s movement, which has been influential on a national level in achieving economic, political and social rights, but which has also been advocating for gender, equality and security...

  7. Denmark

    DEFF Research Database (Denmark)

    Pedersen, Anders Branth

    2008-01-01

    The Encyclopedia of Global Warming and Climate Change helps readers learn about the astonishingly intricate processes that make ours the only planet known to be habitable. These three volumes include more than 750 articles that explore major topics related to global warming and climate change......-ranging geographically from the North Pole to the South Pole, and thematically from social effects to scientific causes....

  8. Denmark

    DEFF Research Database (Denmark)

    Schrøder, Kim Christian; Ørsten, Mark

    2017-01-01

    The media environment continues to be characterized by strong public service broadcasters (DR and TV2) and a strong national press, but the already entrenched debate about the role of public service media online is intensifying ahead of a new remit in 2018......The media environment continues to be characterized by strong public service broadcasters (DR and TV2) and a strong national press, but the already entrenched debate about the role of public service media online is intensifying ahead of a new remit in 2018...

  9. Denmark

    DEFF Research Database (Denmark)

    Adrian, Lin

    2014-01-01

    The report identifies conditions for the successful interactions of national security and defence stakeholders in the strategic framework of comprehensive security and integrated defence. It reviews the literature on comprehensive and integrated approaches to complex security and defence challeng...

  10. The Question of How Denmark Got To Be Denmark

    DEFF Research Database (Denmark)

    Jensen, Mette Frisk

    2014-01-01

    1660 and 1849 came to form an important basis for an administrative culture based on the rule of law which came to minimize corruption. The building of the absolute monarchial state power came to be ensured through the establishment of a strong and comprehensive state hierarchy with a king at the top...... in combination with the establishment of an increasingly Weberian bureaucracy after 1660 helped to curb corruption in the Danish administration of state, and this is likely to have played a key role in establishing Denmark’s present high level of quality of government and global position as a best performer...... in an attempt to consolidate the rule has been an integral part of the process of state building in Denmark since the establishment of the absolute monarchy in 1660. The institutional framework set up at this point along with continuing reforms to improve the administration in the period of absolutism between...

  11. Crystallographic transformation of limestone during calcination under CO2.

    Science.gov (United States)

    Valverde, Jose Manuel; Medina, Santiago

    2015-09-14

    The calcination reaction of limestone (CaCO3) to yield lime (CaO) is at the heart of many industrial applications as well as natural processes. In the recently emerged calcium-looping technology, CO2 capture is accomplished by the carbonation of CaO in a gas-solid reactor (carbonator). CaO is derived by the calcination of limestone in a calciner reactor under necessarily high CO2 partial pressure and high temperature. In situ X-ray diffraction (XRD) has been employed in this work to gain further insight into the crystallographic transformation that takes place during the calcination of limestone under CO2, at partial pressures (P) close to the equilibrium pressure (Peq) and at high temperature. Calcination under these conditions becomes extremely slow. The in situ XRD analysis presented here suggests the presence of an intermediate metastable CaO* phase stemming from the parent CaCO3 structure. According to the reaction mechanism proposed elsewhere, the exothermicity of the CaO* → CaO transformation and high values of P/Peq inhibit the nucleation of CaO at high temperatures. The wt% of CaO* remains at a relatively high level during slow calcination. Two diverse stages have been identified in the evolution of CaO crystallite size, L. Initially, L increases with CaCO3 conversion, following a logarithmic law. Slow calcination allows the crystallite size to grow up from a few nanometers at nucleation up to around 100 nm near the end of conversion. Otherwise, quick calcination at relatively lower CO2 concentrations limits CaO crystallite growth. Once calcination reaches an advanced state, the presence of CaO* drops to zero and the rate of increase of the CaO crystallite size is significantly hindered. Arguably, the first stage in CaO crystallite growth is driven by aggregation of the metastable CaO* nanocrystals, due to surface attractive forces, whereas the second one is consistent with sintering of the aggregated CaO crystals, and persists with time after full

  12. Compressive strength evolution of thermally-stressed Saint Maximin limestone.

    Science.gov (United States)

    Farquharson, J.; Griffiths, L.; Baud, P.; Wadsworth, F. B.; Heap, M. J.

    2017-12-01

    The Saint Maximin quarry (Oise, France) opened in the early 1600s, and its limestone has been used extensively as masonry stone, particularly during the classical era of Parisian architecture from the 17th century onwards. Its widespread use has been due to a combination of its regional availability, its high workability, and its aesthetic appeal. Notable buildings completed using this material include sections of the Place de la Concorde and the Louvre in Paris. More recently, however, it has seen increasing use in the construction of large private residences throughout the United States as well as extensions to private institutions such as Stanford University. For any large building, fire hazard can be a substantial concern, especially in tectonically active areas where catastrophic fires may arise following large-magnitude earthquakes. Typically, house fires burn at temperatures of around 600 °C ( 1000 F). Given the ubiquity of this geomaterial as a building stone, it is important to ascertain the influence of heating on the strength of Saint Maximin limestone (SML), and in turn the structural stability of the buildings it is used in. We performed a series of compressive tests and permeability measurements on samples of SML to determine its strength evolution in response to heating to incrementally higher temperatures. We observe that the uniaxial compressive strength of SML decreases from >12 MPa at room temperature to 400 °C). We anticipate that this substantial weakening is in part a result of thermal microcracking, whereby changes in temperature induce thermal stresses due to a mismatch in thermal expansion between the constituent grains. This mechanism is compounded by the volumetric increase of quartz through its alpha - beta transition at 573 °C, and by the thermal decomposition of calcite. To track the formation of thermal microcracks, we monitor acoustic emissions, a common proxy for microcracking, during the heating of an SML sample. The

  13. River water quality in weathered limestone: A case study in upper ...

    Indian Academy of Sciences (India)

    Stromatolitic limestone and calcareous shale belonging to Chattisgarh Supergroup of Proterozoic age dominate the upper part of the Mahanadi river basin.X-ray diffractogram (XRD)of limestone rocks show presence of a significant amount of calcite,dolomite and ankerite.Shales of various colours contain calcite and ...

  14. Assessment of the state of conservation of a Middle Neolithic flint mine in Maastricht limestone

    NARCIS (Netherlands)

    Van Hees, R.P.J.; Nijland, T.G.

    2009-01-01

    Upper Cretaceous Maastricht limestone ("mergel") outcrops in the provinces of Dutch and Belgian Limburg. The Upper Cretaceous in the Netherlands consists of the geological Maastricht Formation and the upper part of the Gulpen Formation. Limestones from the Maastricht Formation represent one of the

  15. Assessment of the state of conservation of a Middle Neolithic flint mine in Maastricht limestone

    NARCIS (Netherlands)

    Hees, R.P.J. van; Nijland, T.G.

    2009-01-01

    Upper Cretaceous Maastricht limestone (‘mergel’) outcrops in the provinces of Dutch and Belgian Limburg. The Upper Cretaceous in the Netherlands consists of the geological Maastricht Formation and the upper part of the Gulpen Formation. Limestones from the Maastricht Formation represent one of the

  16. Development of engineered cementitious composites with limestone powder and blast furnace slag

    NARCIS (Netherlands)

    Zhou, J.; Qian, S.; Sierra Beltran, M.G.; Ye, G.; Van Breugel, K.; Li, V.C.

    2009-01-01

    Nowadays limestone powder and blast furnace slag (BFS) are widely used in concrete as blended materials in cement. The replacement of Portland cement by limestone powder and BFS can lower the cost and enhance the greenness of concrete, since the production of these two materials needs less energy

  17. Oriented nucleation and growth of anhydrite during direct sulfation of limestone

    DEFF Research Database (Denmark)

    Hu, Guilin; Dam-Johansen, Kim; Wedel, Stig

    2008-01-01

    The direct sulfation of limestone (Iceland Spar) was studied at 973 K in a fixed-bed reactor. Scanning electron microscopy examinations of the sulfated limestone particles show that the sulfation process involves oriented nucleation and growth of the solid product, anhydrite. The reason...

  18. 76 FR 35396 - Black Hills National Forest, Mystic Ranger District, South Dakota, Section 30 Limestone Mining...

    Science.gov (United States)

    2011-06-17

    ... analysis and decision. Notable permit requirements include: Clean Water Act--Apply for construction/mining..., South Dakota, Section 30 Limestone Mining Project AGENCY: Forest Service, USDA. ACTION: Corrected Notice... submitted by Pete Lien and Sons, Inc., for the purpose of mining for chemical grade limestone within mining...

  19. Adsorption and desorption of phosphate on limestone in experiments simulating seawater intrusion

    Science.gov (United States)

    The absorption and desorption of phosphorus on a large block of limestone was investigated using deionized water (DIW) and seawater. The limestone had a high affinity to adsorb phosphorus in DIW. Phosphate adsorption was significantly less in seawater, and more phosphorus was desorbed in the seawate...

  20. Sierra Elvira limestone: petrophysical characteristics of an Andalusian heritage stone

    Directory of Open Access Journals (Sweden)

    Valverde, I.

    2008-06-01

    Full Text Available “Sierra Elvira stone” is one of the ornamental building stones most widely used in the historical monuments of eastern Andalusia. A Liassic age limestone, it appears in the central section of the Baetic Mountains and more specifically in the Middle Subbaetic domain. While the most common variety is a crinoid limestone, a micritic limestone of the same age has also been quarried, albeit in much smaller quantities. These stones form very thick beds, up to nearly 5 m deep, that run in consistently parallel lines and have a dip angle that facilitates quarrying.With petrographic, physical and mechanical properties that ensure stone strength and durability, it is a high quality building material suitable for both structural and ornamental purposes. These properties can be attributed to the minimal open porosity and concomitant excellent water resistance that characterize the stone, as well as to its high mechanical strength and low textural anisotropy, both elastic and mechanical. With such attributes, the stone can be successfully used for any number of purposes, including decorative stonework (portals, fountains, plinths, structural members (column shafts and bases or urban curbing and paving. Intervention on Sierra de Elvira limestone structures should be limited to cleaning or repair, for consolidating or protective materials are scantly effective.La “Piedra de Sierra Elvira” constituye una de las piedras ornamentales más significativas del Patrimonio Arquitectónico de Andalucía Oriental. Es una roca caliza del Lias que aflora en el Subbético Medio del sector central de las Cordilleras Béticas. El litotipo más explotado es una caliza con crinoides, en bastante menor importancia se ha extraído también otra caliza micrítica de la misma edad. Los bancos son muy potentes, en algunos casos de más de 5 m, con un paralelismo constante y un buzamiento que favorece su explotación en los frentes de cantera.Sus caracter

  1. Identification of Calcium Sulphoaluminate Formation between Alunite and Limestone

    Directory of Open Access Journals (Sweden)

    Hee-Chan Cho

    2009-06-01

    Full Text Available This study was carried out to identify the conditions of formation of calcium sulphoaluminate (3CaO·3Al2O3·CaSO4 by the sintering of a limestone (CaCO3 and alunite [K2SO4·Al2(SO43·4Al(OH3] mixture with the following reagents: K2SO4, CaCO3, Al(OH3, CaSO4·2H2O, and SiO2. When K2SO4, CaCO3, Al(OH3, CaSO4·2H2O were mixed in molar ratios of 1:3:6:3 and sintered at 1,200~1,300 °C, only 3CaO·3Al2O3·CaSO4 and calcium langbeinite (2CaSO4·K2SO4 were generated. With an amount of CaO that is less than the stoichiometric molar ratio, 3CaO·3Al2O3·CaSO4 was formed and anhydrite (CaSO4 did not react and remained behind. With the amount of CaSO4 that is less than the stoichiometric molar ratio, the amounts of 3CaO·3Al2O3·CaSO4 and 2CaSO4·K2SO4 decreased, and that of CaO·Al2O3 increased. In the K2SO4-CaO-Al2O3-CaSO4-SiO2 system, to stabilize the formation of 3CaO·3Al2O3·CaSO4, 2CaSO4·K2SO4, and β-2CaO·SiO2, the molar ratios of CaO: Al2O3: CaSO4 must be kept at 3:3:1 and that of CaO/SiO2, over 2.0; otherwise, the generated amount of 3CaO·3Al2O3·CaSO4 decreased and that of gehlenite (2CaO·Al2O3·SiO2 with no hydration increased quantitatively. Therefore, if all SO3(g generated by the thermal decomposition of alunite reacts with CaCO3 (or CaO, the thermal decomposition product of limestone to form CaSO4 in an alunite- limestone system, 1 mol of pure alunite reacts with 6 mol of limestone to form 1 mol of 3CaO·3Al2O3·CaSO4 and 1 mol of 2CaSO4·K2SO4.

  2. The Energy Dissipation of Propagating Cracks in Solnhofen Limestone

    Science.gov (United States)

    Bertram, A.; Kalthoff, J. F.

    2002-12-01

    Crack propagation events are initiated in Solnhofen limestone under impact loading conditions. The Fracture energy respectively the fracture toughness and the velocity of propagating cracks are measured by means of an optimized strain gauge measuring technique. Cracks are accelerated to velocities in the range of 1500 m/s. The measured crack propagation energies/crack propagation toughnesses are significantly higher than the crack initiation energy/crack initiation toughness. Control measurements on the basis of a global energy approach by means of Charpy pendulum impact tests verify the found behaviour. The results explain characteristic peculiarities of the crack propagation behaviour of brittle fracture in rock. Keywords: Fracture energy, fracture toughness, crack propagation, crack velocity, rock

  3. SLAM: a sodium-limestone concrete ablation model

    International Nuclear Information System (INIS)

    Suo-Anttila, A.J.

    1983-12-01

    SLAM is a three-region model, containing a pool (sodium and reaction debris) region, a dry (boundary layer and dehydrated concrete) region, and a wet (hydrated concrete) region. The model includes a solution to the mass, momentum, and energy equations in each region. A chemical kinetics model is included to provide heat sources due to chemical reactions between the sodium and the concrete. Both isolated model as well as integrated whole code evaluations have been made with good results. The chemical kinetics and water migration models were evaluated separately, with good results. Several small and large-scale sodium limestone concrete experiments were simulated with reasonable agreement between SLAM and the experimental results. The SLAM code was applied to investigate the effects of mixing, pool temperature, pool depth and fluidization. All these phenomena were found to be of significance in the predicted response of the sodium concrete interaction. Pool fluidization is predicted to be the most important variable in large scale interactions

  4. Geochemistry, environmental and provenance study of the Middle Miocene Leitha limestones (Central Paratethys

    Directory of Open Access Journals (Sweden)

    Ali Ahmed

    2017-06-01

    Full Text Available Mineralogical, major, minor, REE and trace element analyses of rock samples were performed on Middle Miocene limestones (Leitha limestones, Badenian collected from four localities from Austria (Mannersdorf, Wöllersdorf, Kummer and Rosenberg quarries and the Fertőrákos quarry in Hungary. Impure to pure limestones (i.e. limited by Al2O3 contents above or below 0.43 wt. % were tested to evaluate the applicability of various geochemical proxies and indices in regard to provenance and palaeoenvironmental interpretations. Pure and impure limestones from Mannersdorf and Wöllersdorf (southern Vienna Basin show signs of detrital input (REEs = 27.6 ± 9.8 ppm, Ce anomaly = 0.95 ± 0.1 and the presence of quartz, muscovite and clay minerals in impure limestones and diagenetic influence (low contents of, e.g., Sr = 221 ± 49 ppm, Na is not detected, Ba = 15.6 ± 8.8 ppm in pure limestones. Thus, in both limestones the reconstruction of original sedimentary palaeoenvironments by geochemistry is hampered. The Kummer and Fertőrákos (Eisenstadt–Sopron Basin comprise pure limestones (e.g., averages Sr = 571 ± 139 ppm, Na = 213 ± 56 ppm, Ba = 21 ± 4 ppm, REEs = 16 ± 3 ppm and Ce anomaly = 0.62 ± 0.05 and composed predominantly of calcite exhibiting negligible diagenesis. Deposition under a shallow-water, well oxygenated to intermittent dysoxic marine environment can be reconstructed. Pure to impure limestones at Rosenberg–Retznei (Styrian Basin are affected to some extent by detrital input and volcano-siliciclastic admixture. The Leitha limestones at Rosenberg have the least diagenetic influence among the studied localities (i.e. averages Sr = 1271 ± 261 ppm, Na = 315 ± 195 ppm, Ba = 32 ± 15 ppm, REEs = 9.8 ± 4.2 ppm and Ce anomaly = 0.77 ± 0.1 and consist of calcite, minor dolomite and quartz. The siliciclastic sources are characterized by immobile elemental ratios (i.e. La/Sc and Th/Co which apply not only for the siliciclastics, but also

  5. Housing and energy in Denmark

    DEFF Research Database (Denmark)

    Marsh, Rob; Grupe Larsen, Vibeke; Kragh, Mikkel

    2010-01-01

    in electricity consumption, reflecting wider technological and social transformations in the movement from an industrial to a knowledge based society. In new housing it is shown that electricity consumption now dominates the total primary energy consumption, and that as a consequence traditional heat saving......  This paper examines the historical background, current context and future challenges for housing energy consumption in Denmark. There has been a radical transformation in housing energy consumption over the last 30 years, with an absolute reduction in heat consumption and a rapid growth...... paradigms are relatively less effective, and can result in overheating and rising electricity consumption. At the same time, climate change concerns show that rising temperatures will in the future result in a falling heat demand and increasing cooling demand in housing. With this background, a theoretical...

  6. Bundling ecosystem services in Denmark

    DEFF Research Database (Denmark)

    Turner, Katrine Grace; Odgaard, Mette Vestergaard; Bøcher, Peder Klith

    2014-01-01

    We made a spatial analysis of 11 ecosystem services at a 10 km × 10 km grid scale covering most of Denmark. Our objective was to describe their spatial distribution and interactions and also to analyze whether they formed specific bundle types on a regional scale in the Danish cultural landscape....... We found clustered distribution patterns of ecosystem services across the country. There was a significant tendency for trade-offs between on the one hand cultural and regulating services and on the other provisioning services, and we also found the potential of regulating and cultural services...... to form synergies. We identified six distinct ecosystem service bundle types, indicating multiple interactions at a landscape level. The bundle types showed specialized areas of agricultural production, high provision of cultural services at the coasts, multifunctional mixed-use bundle types around urban...

  7. The Blasphemy Ban in Denmark

    DEFF Research Database (Denmark)

    Binderup, Lars Grassmè; Lassen, Eva Maria

    2017-01-01

    in political concern for the possible effects of an abolition of art. 140 on the status and circumstances of religious minorities in Denmark. In this article, we will first look at the historical development of the blasphemy ban, leading to the current art. 140 of the Danish Penal Code. The content and scope...... of art. 140 will be sketched, followed by a discussion of the few cases brought to court since 1933, reaching a climax with the Muhammed Cartoons in 2006. One legal particularity of the blasphemy ban will be given special attention, namely the reference to art. 140 in the Danish Alien’s Act which has...... the potential to bring the ban on blasphemy back to life by bringing it into play with penal systems of other countries with blasphemy laws. The article proceeds to outline the reactions of international human rights bodies to art. 140, focussing on the statement of the UN Special Rapporteur on Religion...

  8. Diabetes among migrants in Denmark

    DEFF Research Database (Denmark)

    Andersen, Gregers Stig; Kamper-Jørgensen, Zaza; Carstensen, Bendix

    2016-01-01

    OBJECTIVE: Studies of diabetes in migrant populations have shown a higher prevalence compared to their respective countries of origin and to people natively born in the host country, but there is little population-based data on diabetes incidence and mortality in migrant populations. The aim...... of the current study was (1) to describe the incidence rates and prevalence of diabetes among first generation migrants in Denmark compared to the Danish background population, and (2) to compare standardised mortality rates (SMRs) for individuals with and without diabetes according to country of origin....... RESEARCH DESIGN AND METHODS: Information was obtained from linkage of the National Diabetes Register with mortality statistics and information from the Central Personal Register on country of origin. Age- and sex-specific estimates of prevalence, incidence rates, mortality rates and SMRs relative...

  9. Salmonella Control Programs in Denmark

    DEFF Research Database (Denmark)

    Wegener, Henrik Caspar; Hald, Tine; Wong, Danilo Lo Fo

    2003-01-01

    We describe Salmonella control programs of broiler chickens, layer hens, and pigs in Denmark. Major reductions in the incidence of foodborne human salmonellosis have occurred by integrated control of farms and food processing plants. Disease control has been achieved by monitoring the herds...... and flocks, eliminating infected animals, and diversifying animals (animals and products are processed differently depending on Salmonella status) and animal food products according to the determined risk. In 2001, the Danish society saved U.S.$25.5 million by controlling Salmonella. The total annual...... Salmonella control costs in year 2001 were U.S.$14.1 million (U.S.$0.075/kg of pork and U.S.$0.02/kg of broiler or egg). These costs are paid almost exclusively by the industry. The control principles described are applicable to most industrialized countries with modern intensive farming systems....

  10. Consumer food waste in Denmark

    DEFF Research Database (Denmark)

    Stancu, Violeta; Lähteenmäki, Liisa

    Linket til højre henviser til rapporten i trykt format til download. Dokumentet over linket er selve leveringen til ministeriet med følgebrev. Household food waste is one of the main contributors to the food waste amounts across the food supply chain. This report is based on a study conducted...... in September 2017 by MAPP Research Centre – Research on Value Creation in the Food Sector. The study aimed to examine consumer food waste, with a focus on consumer perceptions and practices related to food waste. A survey was completed by 508 respondents in Denmark to provide insights into self......-reported consumer food waste, consumer understanding and perceptions of food waste, household food-related practices as well as individual and household characteristics with a role in food waste....

  11. Colour changes by laser irradiation of reddish building limestones

    Energy Technology Data Exchange (ETDEWEB)

    Grossi, C.M., E-mail: c.grossi-sampedro@uea.ac.uk [School of Health Sciences, University of East Anglia, Norwich NR4 7TJ (United Kingdom); Benavente, D. [Department of Earth and Environment Sciences, University of Alicante. 03690 Alicante (Spain)

    2016-10-30

    Highlights: • This is the first time that XPS is used to determine the cause of colour change in coloured stones when cleaned with laser at 1064 nm. • We demonstrate that the colour change in red limestones is due to a reduction in the state of oxidation of iron, in this case present as hematite. • XPS could be routinely used to analyse causes of colour changes during laser cleaning in other types of coloured building stones. - Abstract: We have used X-ray photoelectron spectroscopy (XPS) as a novel method to investigate the causes of colour changes in a reddish limestone under irradiation by a Q-switched Nd:YAG 1064 nm laser. We irradiated clean dry and wet surfaces of Pidramuelle Roja, a building stone frequently used in the Asturian heritage, at fluences ranging from 0.12 to 1.47 J cm{sup −2}. We measured the colour coordinates and undertook XPS analysis of the state of oxidation of iron both before and after irradiation. Visible colour changes and potential aesthetic damage occurred on dry surfaces from a fluence of 0.31 J cm{sup −2}, with the stone showing a greening effect and very intense darkening. The colour change on dry surfaces was considerably higher than on wet surfaces, which at the highest fluence (1.47 J cm{sup −2}) was also above the human visual detection threshold. The use of XPS demonstrated that the change in colour (chroma and hue) is associated with a reduction in the iron oxidation state on dry surfaces during laser irradiation. This points out to a potential routinary use of XPS to analyse causes of colour changes during laser cleaning in other types of coloured building stones.

  12. Hydration mechanisms of ternary Portland cements containing limestone powder and fly ash

    International Nuclear Information System (INIS)

    De Weerdt, K.; Haha, M. Ben; Le Saout, G.; Kjellsen, K.O.; Justnes, H.; Lothenbach, B.

    2011-01-01

    The effect of minor additions of limestone powder on the properties of fly ash blended cements was investigated in this study using isothermal calorimetry, thermogravimetry (TGA), X-ray diffraction (XRD), scanning electron microscopy (SEM) techniques, and pore solution analysis. The presence of limestone powder led to the formation of hemi- and monocarbonate and to a stabilisation of ettringite compared to the limestone-free cements, where a part of the ettringite converted to monosulphate. Thus, the presence of 5% of limestone led to an increase of the volume of the hydrates, as visible in the increase in chemical shrinkage, and an increase in compressive strength. This effect was amplified for the fly ash/limestone blended cements due to the additional alumina provided by the fly ash reaction.

  13. Prospect for organic farming in Denmark

    DEFF Research Database (Denmark)

    Jacobsen, Lars-Bo

    2005-01-01

    Concerns about the impact of modern agriculture on the environment have led to public support for the development of organic farming during the last 10-15 years. Besides generating environmental benefits and supplying food, organic farming is supposed to be “multifunctional”, such as providing...... scenarios aiming at benefiting organic production are analysed and the strength and weakness of these policy scenarios are discussed....... rural amenities and promoting rural development. In Denmark, conversion into organic production has increased rapidly through the 1990s. Nevertheless, despite increased consumption of organic products in Denmark (in fact, Denmark has the highest organic share in consumption), drastic increases...

  14. Low-Wage Work in Denmark

    DEFF Research Database (Denmark)

    Westergård-Nielsen, Niels Chr.

    2008-01-01

    not stay in low-wage jobs for long. Many go on to higher paying jobs, while a significant minority ends up relying temporarily on income support and benefits sustained by one of the highest tax rates in the world.  Low-Wage Work in Denmark provides an insightful look at the particularities of the Danish...... with detailed case studies of five industries to explore why low-end jobs are so different in Denmark. Some jobs that are low-paying in the United States, including hotel maids and meat processors, though still demanding, are much more highly compensated in Denmark. And Danes, unlike American workers, do...

  15. Direct Democracy in Local Politics in Denmark

    DEFF Research Database (Denmark)

    Svensson, Palle

    2007-01-01

    been published. This paper, accordingly, has an explorative nature and asks two basic questions: What is the current state of direct democracy at the local level in Denmark, and what are the prospects for a further development of direct democracy at the local level in Denmark? The paper is based......Elements of  direct democracy at the local level does exist in Denmark, but it is little known, because no formal rules regulate this aspect of political life, because results from popular initiatives and referendums are not recorded in official statistics, and because few systematic analyses have...

  16. Legally induced abortions in Denmark after Chernobyl.

    Science.gov (United States)

    Knudsen, L B

    1991-01-01

    During the months following the accident in Chernobyl, Denmark experienced an increasing rate of induced abortion, especially in regions with the largest measured increase in radiation. As the increase in radiation in Denmark was so low that almost no increased risk of birth defects was expected, the public debate and anxiety among the pregnant women and their husbands "caused" more fetal deaths in Denmark than the accident. This underlines the importance of public debate, the role of the mass media and of the way in which National Health authorities participate in this debate.

  17. Low-Wage Work in Denmark

    DEFF Research Database (Denmark)

    Westergård-Nielsen, Niels Chr.

    2008-01-01

    of collective bargaining help regulate working conditions in the absence of strong government regulation. Denmark's rate of low-wage work-8.5 percent-is the lowest of the five countries under analysis. In Low-Wage Work in Denmark, a team of Danish researchers combines comprehensive national registry data...... not stay in low-wage jobs for long. Many go on to higher paying jobs, while a significant minority ends up relying temporarily on income support and benefits sustained by one of the highest tax rates in the world.  Low-Wage Work in Denmark provides an insightful look at the particularities of the Danish...

  18. Diabetes among Inuit migrants in Denmark

    DEFF Research Database (Denmark)

    Moustgaard, Helene; Bjerregaard, Peter; Borch-Johnsen, Knut

    2005-01-01

    and physical inactivity. The association between waist circumference and diabetes was significantly stronger among Inuit migrants in Denmark than among Inuit in Greenland. CONCLUSIONS: The prevalence of diabetes is high among the Inuit migrants in Denmark. However, unlike that reported in most studies......OBJECTIVES: The study aimed to estimate the prevalence of diabetes and impaired glucose intolerance (IGT) among Inuit migrants living in Denmark, and to compare with findings from Greenland. Further, we analyzed determinants for diabetes and impaired glucose metabolism. STUDY DESIGN: Cross......-sectional, population-based epidemiological study. METHODS: This cross-sectional study included randomly selected Inuit migrants in Denmark aged 34 years and above. Diabetes and IGT were diagnosed using the oral glucose tolerance test. Body mass index (BMI) and waist circumference were measured, and blood samples were...

  19. Environmental economy account for Denmark 2003

    International Nuclear Information System (INIS)

    Anon.

    2005-01-01

    The environmental economy account for Denmark shows that the contribution to acidification in Denmark increased with 1% from 2002 to 2003, while the contribution to the greenhouse effect increased with 11,3%. The latter covers an increase of 19,3 % from the energy supply and an increase of 22,4% from Danish ships' bunkering outside Denmark. The environmental account for Denmark presents accounts of the energy consumption (and water consumption) of the industrial branches and the households together with their emission of pollutants to the atmosphere. The account also contains information about the environmental taxes and subsidies that rest with industry and households. Finally, volume and value are presented of the oil and gas reserves in the North Sea. The environmental account combines environmental data with the Danish National Accounts, making it possible to analyse the relation between economy and environment. (ln)

  20. Diabetes among Inuit migrants in Denmark

    DEFF Research Database (Denmark)

    Moustgaard, Helene; Bjerregaard, Peter; Borch-Johnsen, Knut

    2005-01-01

    The study aimed to estimate the prevalence of diabetes and impaired glucose intolerance (IGT) among Inuit migrants living in Denmark, and to compare with findings from Greenland. Further, we analyzed determinants for diabetes and impaired glucose metabolism....

  1. Diabetes among Inuit migrants in Denmark

    DEFF Research Database (Denmark)

    Moustgaard, Helene; Bjerregaard, Peter; Borch-Johnsen, Knut

    2005-01-01

    The study aimed to estimate the prevalence of diabetes and impaired glucose intolerance (IGT) among Inuit migrants living in Denmark, and to compare with findings from Greenland. Further, we analyzed determinants for diabetes and impaired glucose metabolism.......The study aimed to estimate the prevalence of diabetes and impaired glucose intolerance (IGT) among Inuit migrants living in Denmark, and to compare with findings from Greenland. Further, we analyzed determinants for diabetes and impaired glucose metabolism....

  2. Energy Efficiency in Grocery Distribution in Denmark

    DEFF Research Database (Denmark)

    Jørgensen, Kaj

    1997-01-01

    Evaluation of the development of the energy efficiency of grocery distribution from 1960 to the present in Denmark, covering both the distribution to the shops and the shopping transport (distribution from shops to individual homes)......Evaluation of the development of the energy efficiency of grocery distribution from 1960 to the present in Denmark, covering both the distribution to the shops and the shopping transport (distribution from shops to individual homes)...

  3. Perspectives for Electric Vehicles in Denmark

    DEFF Research Database (Denmark)

    Horstmann, Jørgen; Jørgensen, Kaj

    1997-01-01

    Review of the present knowledge on electric vehicles and analysis of the energy and environmental consequences of the introduction of electric vehicles in Denmark. The report focuses on the 10-15 year time perspective.......Review of the present knowledge on electric vehicles and analysis of the energy and environmental consequences of the introduction of electric vehicles in Denmark. The report focuses on the 10-15 year time perspective....

  4. Modeling of Hydration, Compressive Strength, and Carbonation of Portland-Limestone Cement (PLC Concrete

    Directory of Open Access Journals (Sweden)

    Xiao-Yong Wang

    2017-01-01

    Full Text Available Limestone is widely used in the construction industry to produce Portland limestone cement (PLC concrete. Systematic evaluations of hydration kinetics, compressive strength development, and carbonation resistance are crucial for the rational use of limestone. This study presents a hydration-based model for evaluating the influences of limestone on the strength and carbonation of concrete. First, the hydration model analyzes the dilution effect and the nucleation effect of limestone during the hydration of cement. The degree of cement hydration is calculated by considering concrete mixing proportions, binder properties, and curing conditions. Second, by using the gel–space ratio, the compressive strength of PLC concrete is evaluated. The interactions among water-to-binder ratio, limestone replacement ratio, and strength development are highlighted. Third, the carbonate material contents and porosity are calculated from the hydration model and are used as input parameters for the carbonation model. By considering concrete microstructures and environmental conditions, the carbon dioxide diffusivity and carbonation depth of PLC concrete are evaluated. The proposed model has been determined to be valid for concrete with various water-to-binder ratios, limestone contents, and curing periods.

  5. STUDIES ON PHYSICAL PROPERTIES OF BUKIT KAMANGS’ LIMESTONE AS MINERAL SOURCE FOR LAYING HENS

    Directory of Open Access Journals (Sweden)

    K. Khalil

    2014-10-01

    Full Text Available Samples of limestone composites were measured for hardness in 5 difference colors: black, darkblue, blue, light blue and white. Limestone was then ground and particle sizes of meal were measured.The meal were mixed with other locally available materials to produce 5 difference mineral formulas:P1: 100% limestone meal, P2: 50% limestone meal + 50% fresh water oyster shell meal, P3: 35%limestone meal + 30% fresh water oyster shell meal + 35% bone meal, P4: 35% limestone meal + 30%fresh water oyster shell meal + 34.2% bone meal + 0.5% salt + 0.3% micro minerals and P5: 100% freshwater oyster shell meal. The formulas were stored for 12 weeks. Samples were taken weekly foranalyzing of moisture content and physical properties. By a feeding trial the five mineral formulas weremixed in the level of 6 % into basal diet and fed to 150 laying hens for 24 weeks. Parameters measuredincluded body weight, feed intake, egg production and FCR. Results showed that the composites ofBukit Kamangs’ limestone had difference hardness. The strongest was found by the black composite of23.4 HRc-C or 245.0 BHN. The meal products contained large particles (>0.42 mm of 17.8%. Moisturecontent of mineral formulas increased during storage, but their physical properties were no significantchanges. The highest moisture increase was found by the product of 100% limestone, but it could bereduced by mixing with oyster shell meal and bone meal. The best laying performances (P<0.05 werefound by the hens fed with diet supplemented with mineral formula containing limestone, fresh wateroyster shell and fortified with micro minerals.

  6. Diversity and biogeography of land snails (Mollusca, Gastropoda) in the limestone hills of Perak, Peninsular Malaysia

    Science.gov (United States)

    Foon, Junn Kitt; Clements, Gopalasamy Reuben; Liew, Thor-Seng

    2017-01-01

    Abstract Limestone hills are now gaining global conservation attention as hotspots for short-range endemic species. Levels of land snail endemism can be high at limestone hills, especially at hill clusters that are geographically isolated. In the State of Perak, Peninsular Malaysia, limestone hills have been opportunistically surveyed for land snails in the past, but the majority have yet to be surveyed. To address this knowledge gap, we systematically surveyed the terrestrial malacofauna of 12 limestone hills that, based on our opinion, are a representation of the limestone land snail assemblages within the State. Our inventory yielded high sampling completeness (>85%). We found 122 species of land snails, of which 34 species were unique to one of the surveyed hills. We identified 30 species that are potentially new to science. The number of land snail species recorded at each hill ranged between 39 and 63 species. Four of the sampled limestone hills namely, Prk 01 G. Tempurung, Prk 55 G. Pondok, Prk 47 Kanthan, and Prk 64 Bt Kepala Gajah, have high levels of species richness and unique species, representing 91% of the total species recorded in this study. We identified two clusters of limestone hills in central Perak with distinct differences in land snail species composition – a northern hill cluster on elevated granite bedrock and southern hill cluster in a low-lying valley surrounded by alluvial soils. As limestone hills continue to be quarried to meet the cement demand, the four identified limestone hills, along with other hills from the two clusters, warrant urgent conservation attention in order to maintain high species diversity within Perak’s terrestrial malacofauna. PMID:28769723

  7. Rehabilitation of lands mined for limestone in the Indian desert

    Science.gov (United States)

    Sharma, K.D.; Kumar, S.; Gough, L.P.

    2000-01-01

    In the Indian desert, the economics of mining is second only to agriculture in importance. However, research on the rehabilitation of land disturbed by mining has only recently received serious attention. An attempt has been made to determine both the qualitative and quantitative success of rehabilitation plans used to revegetate limestone mine spoils in an area near Barna, northwest arid India. Rehabilitation success was achieved using a combination of rainwater harvesting techniques, soil amendment application approaches, plant establishment methods and the selection of appropriate germplasm material (trees, shrubs and grasses). It is expected that the resulting vegetative cover will be capable of self-perpetuation under natural conditions while at the same time meeting the land-use needs of the local people. The minespoils have adequate levels of the major nutrients (except P, Mo and Se) for proper plant and grazing animal health. Levels of organic matter are low whereas total B concentrations are exceptionally high. Also, the population of soil fungi, Azotobactor, and nitrifying bacteria is negligible. Enhanced plant growth was achieved in treated plots, compared to control plots, where spoil moisture storage was improved by 5-45 per cent. Due to the decomposition of farmyard manure and nitrogen fixation by planted leguminous plant species, the electrical conductance of treated mine spoils increased threefold, CaCO3 content decreased from 20??0 to 5??2 per cent, and organic carbon, P, K, and biological activity increased significantly. The rehabilitation protocol used at the site appears to have been successful because plant self-regeneration is occurring. The increased diversity of woody perennials resulted in 'dominance' being better shared among species and 'evenness' being increased within the plant community elements. The early to mid-successional trends are continuing for six years following initial rehabilitation. This study developed methods for the

  8. ARD remediation with limestone in a CO2 pressurized reactor

    Science.gov (United States)

    Sibrell, Philip L.; Watten, Barnaby J.; Friedrich, Andrew E.; Vinci, Brian J.

    2000-01-01

    We evaluated a new process for remediation of acid rock drainage (ARD). The process treats ARD with intermittently fluidized beds of granular limestone maintained within a continuous flow reactor pressurized with CO2. Tests were performed over a thirty day period at the Toby Creek mine drainage treatment plant, Elk County, Pennsylvania in cooperation with the Pennsylvania Department of Environmental Protection. Equipment performance was established at operating pressures of 0, 34, 82, and 117 kPa using an ARD flow of 227 L/min. The ARD had the following characteristics: pH, 3.1; temperature, 10 °C; dissolved oxygen, 6.4 mg/L; acidity, 260 mg/L; total iron, 21 mg/L; aluminum, 22 mg/L; manganese, 7.5 mg/L; and conductivity, 1400 μS/cm. In all cases tested, processed ARD was net alkaline with mean pH and alkalinities of 6.7 and 59 mg/L at a CO2 pressure of 0 kPa, 6.6 and 158 mg/L at 34 kPa, 7.4 and 240 mg/L at 82 kPa, and 7.4 and 290 mg/L at 117 kPa. Processed ARD alkalinities were correlated to the settled bed depth (pCO2 pressure (pfiltration following treatment. No indications of metal hydroxide precipitation or armoring of the limestone were observed. The surplus alkalinity established at 82 kPa was successful in treating an equivalent of 1136 L/min (five-fold dilution) of the combined three ARD streams entering the Toby Creek Plant. This side-stream capability provides savings in treatment unit scale as well as flexibility in treatment effect. The capability of the system to handle higher influent acidity was tested by elevating the acidity to 5000 mg/L with sulfuric acid. Net alkaline effluent was produced, indicating applicability of the process to highly acidic ARD.

  9. Attitudes to school in Denmark

    Science.gov (United States)

    Florander, J.; Skov, P.

    1985-12-01

    The purpose of this study is to analyze possible trends in the Danish school on an empirical basis, pointing out facts which may be of importance to the development. This has been done by examining, partly, which attitudes manifest themselves in connection with the work in school, partly, whether these attitudes set the stage for conflicts. Conflicts and prospects of conflict are seen as a possible basis for constructive action. The empirical basis consists of view and attitudes among pupils, parents, teachers, and chairmen of school boards in Denmark. The information has been gathered by means of interviews and questionnaires. Furthermore, written material from trades and professions and from different political quarters are included, as well as official descriptions of objectives, rules, and guidelines for the work in school. The results show that there is an obvious risk that school may be forced into a wrong and undesired direction, making it necessary to give a lower priority to essential fields within the work in school.

  10. CARBONIFEROUS CORALS AND CHAETETIDS FROM EXOTIC LIMESTONE BLOCK OF THE CRIMEA

    Directory of Open Access Journals (Sweden)

    VICTOR OGAR

    2015-11-01

    Full Text Available A chaetetid sponge and coral fauna from a Carboniferous exotic limestone block in the Lower Jurassic Esciorda olistostrome on the Bodrak River (Crimean Mountains are described for the first time. The Bodrak exotic block is composed of massive limestone. It contains the chaetetid Chaetetes (Boswellia sp., the tabulate coral Multithecopora sp., and poorly preserved rugose corals, including Dibunophyllum? sp., Cordibia? sp. and gen. et sp. indet. Only the fasciculate colonies of the rugose coral Lytvophyllum askynensis (Kossovaya, 2009 are confidently identified. The studied association of fossils is similar to that of the Donets Basin and the Urals and confirms the Lower Bashkirian age of the Bodrak limestone block. 

  11. Capture of SO2 by limestone in a 71 MWe pressurized fluidized bed boiler

    Directory of Open Access Journals (Sweden)

    Shimizu Tadaaki

    2003-01-01

    Full Text Available A 71 MWe pressurized fluidized bed coal combustor was operated. A wide variety of coals were burnt under fly ash recycle conditions. Limestone was fed to the combustor as bed material as well as sorbent. The emission of SO^ and limestone attrition rate were measured. A simple mathematical model of SO? capture by limestone with intermittent solid attrition was applied to the analysis of the present experimental results. Except for high sulfur fuel, the results of the present model agreed with the experimental results.

  12. Environmental impact management during construction of the limestone project

    International Nuclear Information System (INIS)

    Windsor, D.C.

    1988-01-01

    The Limestone Generating Station is being constructed on the Nelson River in Northern Manitoba, and will consist of a 10 unit powerhouse, 5 gate concrete spillway and earthfill dam spanning the 1.5 km width of the Nelson River. Environmental concerns associated with the project included insufficient pre- and post-construction monitoring documenting resources present or magnitude of impacts, impacts on brook trout and lake sturgeon resources, wildlife habitat loss due to construction activities, destruction or disturbance of historic or archaeological sites, degradation of nearby water courses and fish habitat by aggregate removal, in-migration of construction personnel, and various other socio-economic impacts. An overview is provided of monitoring activities and results in the above areas, which involved numerous consultants and government agencies. The project administration and workers did not find the environmental programs, including inspection and enforcement activities, to be onerous or an impediment to the project. On the contrary, the environmental requirements assisted in the general planning for certain activities, and in the general criteria for the conduct of the activities. The work permit process was particularly useful as it defined the requirements of both parties and provided the specific standards necessary determining the acceptability of the activities. 14 refs., 1 fig

  13. Ground-water resources of Limestone County, Texas

    Science.gov (United States)

    Rettman, P.L.

    1984-01-01

    Limestone County, located in east-central Texas, has small to plentiful ground-water supplies available, depending upon the location within the county. The Wilcox Group in the eastern part of the county has adequate supplies to meet the expected water demands in the foreseeable future. The thicker zones of the Wilcox Group can supply yields in excess of 500 gallons per minute. The Midway Group can supply yields in excess of 100 gallons per minute from the Tehuacana Member of the Kincaid Formation. This represents the largest well yields from the Midway Group in Texas. The Midway Group elsewhere in the State is mostly a poor water producer and is not considered an aquifer. The Taylor Marl and Navarro Group furnish only small quantities of ground water to wells in the western part of the county where these units crop out. The Hosston and Travis Peak Formations are present at depths in excess of 2,000 feet. These formations, which contain slightly saline water in the western part of the county, could be expected to produce water with a temperature of about 150°F that might be used for heating purposes.

  14. The influence of combustion derived pollutants on limestone deterioration

    DEFF Research Database (Denmark)

    Johnson, JB; Montgomery, Melanie; Thompson, GE

    1996-01-01

    10(-4) mu g cm(-2) s(-1), the pollutants were assessed individually and in various combinations, along with ozone as oxidant, at 84% RH with dry or water-wetted surfaces. The degradation was followed by analysis of exposed stone, for Cl-, SO42- and NO3-, and of run-off solution for Ca2+, in addition......% reaction (mass transport control) and V-D values of 2.2 and 5.3 mm s(-1), at 84% RH and on wetted surfaces, respectively. The reactivity of SO2 rose from 2.5 to 35%, and V-D from 1 to 2.9 mm s(-1), from conditions of 84% RH to those with the presence of water, NO2 and O-3. Similarly, the reactivity of NO2......, chemical constitution and transfer, smoke particle size distribution should also be considered in any possible action on limestone. Concerning naturally exposed samples, non-wetted surface reaction products tended to reduce the attack of pollutants, but had no resisting effect when wetted....

  15. Radon in the Creswell Crags Permian limestone caves

    Energy Technology Data Exchange (ETDEWEB)

    Gillmore, G.K. E-mail: g.k.gillmore@bradford.ac.uk; Phillips, P.S.; Denman, A.R.; Gilbertson, D.D

    2002-07-01

    An investigation of radon levels in the caves of Creswell Crags, Derbyshire, an important Site of Special Scientific Interest (SSSI) shows that the Lower Magnesian Limestone (Permian) caves have moderate to raised radon gas levels (27-7800 Bq m{sup -3}) which generally increase with increasing distance into the caves from the entrance regions. This feature is partly explained in terms of cave ventilation and topography. While these levels are generally below the Action Level in the workplace (400 Bq m{sup -3} in the UK), they are above the Action Level for domestic properties (200 Bq m{sup -3}). Creswell Crags has approximately 40,000 visitors per year and therefore a quantification of effective dose is important for both visitors and guides to the Robin Hood show cave. Due to short exposure times the dose received by visitors is low (0.0016 mSv/visit) and regulations concerning exposure are not contravened. Similarly, the dose received by guides is fairly low (0.4 mSv/annum) due in part to current working practice. However, the risk to researchers entering the more inaccessible areas of the cave system is higher (0.06 mSv/visit). This survey also investigated the effect of seasonal variations on recorded radon concentration. From this work summer to winter ratios of between 1.1 and 9.51 were determined for different locations within the largest cave system.

  16. Coated limestone as a filler for the production of PVC-products

    Directory of Open Access Journals (Sweden)

    Mihajlović Slavica

    2005-01-01

    Full Text Available The results of laboratory investigations of the possibility to obtain coated limestone for the production of PVC-products are presented in this paper. Limestone from the "Venčac" deposit (Aranđelovac, Serbia and Montenegro was used as the raw material. The investigations were carried out in two phases: obtaining the coated limestone and determination of the degree of coating. The results of the investigations showed that successful coating of the surface of the limestone particles with Ca-stearate (Ca-stearate content 3% was achieved in a vibro mill with rings and the obtained degree of coating was higher than 95%. The coating degree was determined in transmitted light by a polarization microscope applying the immersion method (water immersion.

  17. Dolomitization in the diagenetic history of the Štramberg limestones

    Czech Academy of Sciences Publication Activity Database

    Lintnerová, O.; Knietl, M.; Reháková, D.; Skupien, P.; Vašíček, Zdeněk

    2008-01-01

    Roč. 34, 3/1 (2008), s. 191-192 ISSN 0138-0974 Institutional research plan: CEZ:AV0Z30860518 Keywords : Štramberk Limestone * dolomitization * dedolomitization Subject RIV: DB - Geology ; Mineralogy

  18. Limestones in Treinta y Tres district : Aerial photo of Jose P. Varela - Isla Patrulla

    International Nuclear Information System (INIS)

    Coronel, N.; Heinzen, W.

    1981-01-01

    This work brings information of fields and laboratory samples about the outcrop in Treinta y Tres district in the framework of limestones programme carried out jointly with I.G.U and BGR through the geological German mission

  19. Systematic ichnology of microborings from the Cenozoic White Limestone Group, Jamaica, West Indies

    NARCIS (Netherlands)

    Blissett, D.J.; Pickerill, R.K.

    2007-01-01

    The Middle Eocene to Middle Miocene White Limestone Group of Jamaica contains a common and diverse, poorly to well-preserved microboring ichnofauna, namely Centrichnus eccentricus Bromley & Martinell, Curvichnus pediformis isp. nov., Dendrorete balani Tavernier, Campbell & Golubic, Dipatulichnus

  20. Improving DMS 9210 requirements for limestone rock asphalt : year one interim report.

    Science.gov (United States)

    2013-05-01

    Limestone Rock Asphalt (LRA) mixtures have been produced and placed for several decades using specification requirements currently listed under DMS 9210. Several Districts have had placement issues and premature failures at the beginning of 2010. The...

  1. Experimental study on CO{sub 2} capture conditions of a fluidized bed limestone decomposition reactor

    Energy Technology Data Exchange (ETDEWEB)

    Wang, Yin [State Key Laboratory of Multi-Phase Complex System, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190 (China); Lin, Shiying [Japan Coal Energy Center, 3-14-10 Mita, Minato-ku, Tokyo 108-0073 (Japan); Suzuki, Yoshizo [National Institute of Advanced Industrial Science and Technology, 16-1 Onogawa, Tsukuba, Ibaraki 305-8569 (Japan)

    2010-08-15

    In this study, the decomposition conditions of limestone particles (0.25-0.50 mm) for CO{sub 2} capture in a steam dilution atmosphere (20-100% steam in CO{sub 2}) were investigated by using a continuously operating fluidized bed reactor. The results show that the decomposition conversion of limestone increased with the steam dilution percentage in the CO{sub 2} supply gas. At a bed temperature of 920 C, the conversions were 72% without steam dilution and 98% with 60% steam dilution. The conversion was 99% with 100% steam dilution at 850 C of the bed temperature. Steam dilution can decrease not only the decomposition temperature of limestone, but also the residence time required for nearly complete decomposition of CaCO{sub 3}. The hydration and carbonation reactivities of the CaO produced were also tested and the results show that both the reactivities increased with the steam dilution percentage for decomposing limestone. (author)

  2. Hydration study of limestone blended cement in the presence of hazardous wastes containing Cr(VI)

    International Nuclear Information System (INIS)

    Trezza, M.A.; Ferraiuelo, M.F.

    2003-01-01

    Considering the increasing use of limestone cement manufacture, the present paper tends to characterize limestone behavior in the presence of Cr(VI). The research reported herein provides information regarding the effect of Cr(VI) from industrial wastes in the limestone cement hydration. The cementitious materials were ordinary Portland cement, as reference, and limestone blended cement. The hydration and physicomechanical properties of cementitious materials and the influence of chromium at an early age were studied with X-ray diffraction (XRD), infrared spectroscopy (FTIR), conductimetric and mechanical tests. Portland cement pastes with the addition of Cr(VI) were examined and leaching behavior with respect to water and acid solution were investigated. This study indicates that Cr(VI) modifies the rate and the components obtained during the cement hydration

  3. The Effect of Limestone, Crush Rock and Asbestos/Cement Dust ...

    African Journals Online (AJOL)

    The Effect of Limestone, Crush Rock and Asbestos/Cement Dust Particles on the Ventilatory Function Parameters of Chronically-Exposed Workers in Calabar Municipality and Akamkpa Local Government Areas of Calabar, Cross River State, Nigeria.

  4. Inelastic Compaction in High-Porosity Limestone Monitored Using Acoustic Emissions

    Science.gov (United States)

    Baud, Patrick; Schubnel, Alexandre; Heap, Michael; Rolland, Alexandra

    2017-12-01

    We performed a systematic investigation of mechanical compaction and strain localization in Saint-Maximin limestone, a quartz-rich, high-porosity (37%) limestone from France. Our new data show that the presence of a significant proportion of secondary mineral (i.e., quartz) did not impact the mechanical strength of the limestone in both the brittle faulting and cataclastic flow regimes, but that the presence of water exerted a significant weakening effect. In contrast to previously published studies on deformation in limestones, inelastic compaction in Saint-Maximin limestone was accompanied by abundant acoustic emission (AE) activity. The location of AE hypocenters during triaxial experiments revealed the presence of compaction localization. Two failure modes were identified in agreement with microstructural analysis and X-ray computed tomography imaging: compactive shear bands developed at low confinement and complex diffuse compaction bands formed at higher confinement. Microstructural observations on deformed samples suggest that the recorded AE activity associated with inelastic compaction, unusual for a porous limestone, could have been due to microcracking at the quartz grain interfaces. Similar to published data on high-porosity macroporous limestones, the crushing of calcite grains was the dominant micromechanism of inelastic compaction in Saint-Maximin limestone. New P wave velocity data show that the effect of microcracking was dominant near the yield point and resulted in a decrease in P wave velocity, while porosity reduction resulted in a significant increase in P wave velocity beyond a few percent of plastic volumetric strain. These new data highlight the complex interplay between mineralogy, rock microstructure, and strain localization in porous rocks.

  5. Comparison of different modeling approaches to simulate contaminant transport in a fractured limestone aquifer

    DEFF Research Database (Denmark)

    Mosthaf, Klaus; Rosenberg, L.; Balbarini, Nicola

    approaches have been developed to describe contaminant transport in fractured media, such as the discrete fracture (with various fracture geometries), equivalent porous media (with and without anisotropy), and dual porosity models. However, these modeling concepts are not well tested for limestone geologies...... of field data is the determination of relevant hydraulic properties and interpretation of aqueous and solid phase contaminant concentration sampling data. Traditional water sampling has a bias towards fracture sampling, however concentrations in the limestone matrix are needed for assessing contaminant...

  6. Evaluation of modeling approaches to simulate contaminant transport in a fractured limestone aquifer

    DEFF Research Database (Denmark)

    Mosthaf, Klaus; Fjordbøge, Annika Sidelmann; Broholm, Mette Martina

    contaminant transport in fractured media, such as discrete fracture, equivalent porous media, and dual continuum models. However, these modeling concepts are not well tested for real limestone geologies. Our goal is therefore to develop, evaluate and compare approaches for modeling transport of contaminants...... data is the determination of relevant hydraulic properties and interpretation of aqueous and solid phase contaminant concentration sampling data. Traditional water sampling has a bias towards fracture sampling; however, concentrations in the limestone matrix are needed for assessing contaminant rebound...

  7. APPLICATION OF RESTORATION ECOLOGY PRINCIPLES TO THE PRACTICE OF LIMESTONE QUARRY REHABILITATION IN LEBANON

    OpenAIRE

    Khater, Carla; Martin, Arnaud

    2007-01-01

    National audience; Restoration ecology is an emerging science dealing with applied ecology and aiming at “helping nature to recreate itself”. This comprehensive paper presents the findings and main results related to the analysis of natural vegetation dynamics on abandoned limestone quarries in Mediterranean environment. It aims to answer three basic questions: where, when and how should intervention by ecological restoration be achieved in abandoned limestone quarries. Results show that quar...

  8. Environmentally acceptable effect of hydrogen peroxide on cave 'lamp-flora', calcite speleothems and limestones

    International Nuclear Information System (INIS)

    Faimon, Jiri; Stelcl, Jindrich; Kubesova, Svatava; Zimak, Jiri

    2003-01-01

    Hydrogen peroxide plus limestone fragments allows removal of organisms without corrosion of limestone and speleothem. - Mosses, algae, and cyanobacteria (lamp-flora) colonize illuminated areas in show caves. This biota is commonly removed by a sodium hypochlorite solution. Because chlorine and other deleterious compounds are released into a cave environment during lamp-flora cleansing, hydrogen peroxide was tested as an alternative agent. In a multidisciplinary study conducted in the Katerinska Cave (Moravian Karst, Czech Republic), 12 algae- and cyanobacteria taxons and 19 moss taxons were detected. The threshold hydrogen peroxide concentration for the destruction of this lamp-flora was found to be 15 vol.%. Based on laboratory experiments in stirred batch reactors, the dissolution rates of limestones and calcite speleothems in water were determined as 3.77x10 -3 and 1.81x10 -3 mol m -2 h -1 , respectively. In the 15% peroxide solution, the limestone and speleothem dissolution rates were one order of magnitude higher, 2.00x10 -2 and 2.21x10 -2 mol m -2 h -1 , respectively. So, the peroxide solution was recognised to attack carbonates somewhat more aggressively than karst water. In order to prevent the potential corrosion of limestone and speleothems, the reaching of preliminary peroxide saturation with respect to calcite is recommended, for example, by adding of few limestone fragments into the solution at least 10 h prior to its application

  9. Influence of limestone waste as partial replacement material for sand and marble powder in concrete properties

    Directory of Open Access Journals (Sweden)

    Omar M. Omar

    2012-12-01

    Full Text Available Green concrete are generally composed of recycling materials as hundred or partial percent substitutes for aggregate, cement, and admixture in concrete. Limestone waste is obtained as a by-product during the production of aggregates through the crushing process of rocks in rubble crusher units. Using quarry waste as a substitute of sand in construction materials would resolve the environmental problems caused by the large-scale depletion of the natural sources of river and mining sands. This paper reports the experimental study undertaken to investigate the influence of partial replacement of sand with limestone waste (LSW, with marble powder (M.P as an additive on the concrete properties. The replacement proportion of sand with limestone waste, 25%, 50%, and 75% were practiced in the concrete mixes except in the concrete mix. Besides, proportions of 5%, 10% and 15% marble powder were practiced in the concrete mixes. The effects of limestone waste as fine aggregate on several fresh and hardened properties of the concretes were investigated. The investigation included testing of compressive strength, indirect tensile strength, flexural strength, modulus of elasticity, and permeability. It was found that limestone waste as fine aggregate enhanced the slump test of the fresh concretes. But the unit weight concretes were not affected. However, the good performance was observed when limestone waste as fine aggregate was used in presence of marble powder.

  10. Studies on limestone concrete as a low-activation structural material for nuclear power plants

    International Nuclear Information System (INIS)

    Uematsu, Mikio; Nagano, Hiroshi; Naito, Yasuhiro

    2000-01-01

    Because of low content of Li, Co and Eu, the target nuclides of activation reaction, limestone concrete is considered to be effective in reducing the decommissioning cost of nuclear plants. Induced activity calculation and structural strength test were performed for limestone concrete and the results were compared with the data obtained for sandstone concrete, which is generally used in nuclear plants. Minor elements, which are important from the viewpoint of activation, were measured with elementary analysis for limestone samples from three different quarries in Japan. Induced activity in biological shield walls (BSW) of Boiling Water Reactor (BWR) plants was calculated with the isotope generation code ORIGEN-79 using neutron flux data obtained with the one-dimensional Sn transport code ANISN and MGCL 137-group activation cross section library based on JENDL-3. Estimated total radioactivity accumulated in limestone concrete BSW was 5 times lower than that in the sandstone concrete BSW. Structural strength were compared between limestone concrete and sandstone concrete, and limestone concrete was found to have enough compressive strength and tensile strength. (author)

  11. Reducing energy-related CO2 emissions using accelerated weathering of limestone

    Science.gov (United States)

    Rau, Greg H.; Knauss, Kevin G.; Langer, William H.; Caldeira, Ken

    2007-01-01

    The use and impacts of accelerated weathering of limestone (AWL; reaction: CO2+H2O+CaCO3→Ca2++2(HCO3-) is explored as a CO2 capture and sequestration method. It is shown that significant limestone resources are relatively close to a majority of CO2-emitting power plants along the coastal US, a favored siting location for AWL. Waste fines, representing more than 20% of current US crushed limestone production (>109 tonnes/yr), could provide an inexpensive or free source of AWL carbonate. With limestone transportation then as the dominant cost variable, CO2 mitigation costs of $3-$4/tonne appear to be possible in certain locations. Perhaps 10–20% of US point–source CO2 emissions could be mitigated in this fashion. It is experimentally shown that CO2 sequestration rates of 10-6 to 10-5 moles/sec per m2 of limestone surface area are achievable, with reaction densities on the order of 10-2 tonnes CO2 m-3day-1, highly dependent on limestone particle size, solution turbulence and flow, and CO2 concentration. Modeling shows that AWL would allow carbon storage in the ocean with significantly reduced impacts to seawater pH relative to direct CO2 disposal into the atmosphere or sea. The addition of AWL-derived alkalinity to the ocean may itself be beneficial for marine biota.

  12. Mangrove plantation over a limestone reef - Good for the ecology?

    Science.gov (United States)

    Asaeda, Takashi; Barnuevo, Abner; Sanjaya, Kelum; Fortes, Miguel D.; Kanesaka, Yoshikazu; Wolanski, Eric

    2016-05-01

    There have been efforts to restore degraded tropical and subtropical mangrove forests. While there have been many failures, there have been some successes but these were seldom evaluated to test to what level the created mangrove wetlands reproduce the characteristics of the natural ecosystem and thus what ecosystem services they can deliver. We provide such a detailed assessment for the case of Olango and Banacon Islands in the Philippines where the forest was created over a limestone reef where mangroves did not exist in one island but they covered most of the other island before deforestation in the 1940s and 1950s. The created forest appears to have reached a steady state after 60 years. As is typical of mangrove rehabilitation efforts worldwide, planting was limited to a single Rhizophora species. While a forest has been created, it does not mimic a natural forest. There is a large difference between the natural and planted forests in terms of forest structure and species diversity, and tree density. The high density of planted trees excludes importing other species from nearby natural forests; therefore the planted forest remains mono-specific even after several decades and shows no sign of mimicking the characteristics of a natural forest. The planted forests provided mangrove propagules that invaded nearby natural forests. The planted forest has also changed the substratum from sandy to muddy. The outline of the crown of the planted forest has become smooth and horizontal, contrary to that of a natural forest, and this changes the local landscape. Thus we recommend that future mangrove restoration schemes should modify their methodology in order to plant several species, maintain sufficient space between trees for growth, include the naturally dominant species, and create tidal creeks, in order to reproduce in the rehabilitated areas some of the key ecosystem characteristics of natural mangrove forests.

  13. An Unusual Process of Accelerated Weathering of a Marly Limestone

    Science.gov (United States)

    Ercoli, L.; Rizzo, G.; Algozzini, G.

    2003-04-01

    This work deals with a singular case of stone deterioration, which occurred during the restoration of the Cathedral of Cefalù. In particular, a significant process of stone decohesion started after a consolidation treatment on ashlars of the external face of the cloister portico. A study was carried out to characterize the stone and to investigate the deterioration process. Petrographical, chemical and physical analyses were performed on samples taken from the wall. The results indicate that the medieval monument was built using a Pliocene marly limestone, called "trubo", quarried from outcrops of the environs of Cefalù. The rock is soft and uniformely cemented. The carbonatic fraction of the rock is due to foraminifera shells; the rock also contains detritic quartz, feldspate and glauconite. The clay minerals, mainly illite and montmorillonite, are widespread in the rock in the form of thin layers. The use of such a stone in a building of relevant artistic value is definitely unusual. In fact, the "trubo" is a rock subjected to natural decay because of its mineralogical composition and fabric; as effect of natural weathering, in the outcrops the rock disaggregates uniformely, producing silt. In the cloister this effect was magnified by extreme environmental conditions (marine spray, severe excursions of both relative humidity and temperature). Furthermore, after soluble salts removing and subsequent consolidation with ethyl silicate, a significant acceleration of the decay process was observed, producing friable scales detach for a depth of about 3 cm into the ashlars. The stone appeared corroded and uneven. Experimental tests were performed in laboratory in order to evidence any origin of incompatibility between such stone composition and the treatments carried out, which on the other hand are the most generally adopted in restoration interventions.

  14. Performance contracting in central government in Denmark

    DEFF Research Database (Denmark)

    Kristiansen, Mads Bøge

    2015-01-01

    in Danish central government. Since their introduction, performance contracts have become central elements in the steering and management of agencies in central government in Denmark, and today they are nearly universally adopted in central government. In Denmark, the Ministry of Finance is responsible......This paper looks into performance contracting in Danish central government. Management by Objectives and Results (MBOR) was adopted in central government in Denmark during the 1980s and early 1990s. In 1991, performance contracts between parent ministries and their agencies were introduced...... for maintaining the MBOR system including setting requirements and recommendations for the design and use of performance contracts, which means that a common central government framework for performance contracting exists. Despite of this common framework, differences in the contract content (scale and focus...

  15. Introduction of New Parasites in Denmark

    DEFF Research Database (Denmark)

    Enemark, Heidi L.

    for the first time in Denmark approximately 10 years ago in 3 foxes from the Copenhagen area. Since then, no systematic surveillance has been performed, and therefore the current prevalence among wildlife and pets is unknown. So far the parasite has not been found in intermediate hosts (rodents) in Denmark......Movement of wildlife across borders and between different regions entail an increased risk of (re-) introduction and spread of new or otherwise low prevalent diseases, which may have consequences not only for the wildlife itself but also for pets, farm animals and humans. The lecture presents...... was genetically very similar to previously published isolates from France and Italy, and may have been spread to Denmark from southern Europe. Giardia spp. a zoonotic, unicellular parasite (protozoa) well known in Danish livestock but recently found in extremely high numbers in Danish deer with chronic diarrhea...

  16. Neonatal herpes in Denmark 1977-1991

    DEFF Research Database (Denmark)

    Fonnest, G; de la Fuente Fonnest, I; Weber, Tom

    1997-01-01

    BACKGROUND: To prevent neonatal herpes, women in labor with genital herpes infection are still delivered by Cesarean section. This policy is currently being debated. The aim of this study was to determine the incidence of neonatal herpes in Denmark and to evaluate the prevention practice. METHODS......: All newborns with perinatal herpes in Denmark 1977-1991 were identified from hospital-records. RESULTS: Of 862,298 deliveries 136 possible cases were found but only 30 (22%) fulfilled the criteria for neonatal herpes. The incidence increased from 2.36 to 4.56 per 100,000 live births during 1977......%) did not have any sequelae. Four (13%) died. Six (20%) had serious neurological sequelae. Seven (23%) only had cutaneous recurrences. In seven cases (23%) information was insufficient. CONCLUSIONS: During a 15 year period in Denmark only one neonate had serious sequelae following a recognized maternal...

  17. Outcome of breast cancer screening in Denmark

    DEFF Research Database (Denmark)

    Lynge, Elsebeth; Bak, Martin; von Euler-Chelpin, My

    2017-01-01

    were node negative and 40% ≤10 mm. False-positive rate was around 2%; higher for North Denmark Region than for the rest of Denmark. Three out of 10 breast cancers in screened women were diagnosed as interval cancers. Conclusions: High coverage by examination and low interval cancer rate are required...... for screening to decrease breast cancer mortality. Two pioneer local screening programs starting in the 1990s were followed by a decrease in breast cancer mortality of 22-25%. Coverage by examination and interval cancer rate of the national program were on the favorable side of values from the pioneer programs...... calculated coverage by examination; participation after invitation; detection-, interval cancer- and false-positive rates; cancer characteristics; sensitivity and specificity, for Denmark and for the five regions. Results: At the national level coverage by examination remained at 75-77%; lower in the Capital...

  18. Ship emissions and air pollution in Denmark

    DEFF Research Database (Denmark)

    Olesen, Helge Rørdam; Winther, Morten; Ellermann, Thomas

    continuously keeps track of ship positions. The inventory provides basis for model calculations of air quality in Denmark for the years 2007, 2011 and 2020. The study has focus on identifying the contribution from ships, and on assessing the effect of international regulations of ship pollution. A minor......A project has been carried out to map the contribution from ship traffic to air pollution in Denmark. A main element in the project is the establishment of a new, improved inventory of ship emissions for the waters around Denmark. The inventory makes use of the so-called AIS system, which...... component of the study concerns the contribution to local air pollution from ships at port....

  19. Environmental economy account for Denmark 2004

    International Nuclear Information System (INIS)

    Anon.

    2006-01-01

    The environmental economy account for Denmark shows that the contribution to acidification in Denmark decreased with 5,2% from 2003 to 2004, while the contribution to the greenhouse effect decreased with 4,4%. The reserves of petroleum and natural gas increased in 2004 with 14 b.DKK to 232 b.DKK. The environmental account for Denmark presents accounts of the energy consumption (and water consumption) of the industrial branches and the households together with their emission of pollutants to the atmosphere. The account also contains information about the environmental taxes and subsidies that rest with industry and households. Finally, volume and value are presented of the oil and gas reserves in the North Sea. The environmental account combines environmental data with the Danish National Accounts, making it possible to analyse the relation between economy and environment. (ln)

  20. Trends in sickness absence in Denmark

    DEFF Research Database (Denmark)

    Johansen, Kristina; Bihrmann, Kristine; Mikkelsen, Sigurd

    2009-01-01

    OBJECTIVE: Based on the prevailing view that it has become a more common behavior, sickness absence is -presently a topic of considerable concern in many European countries. Using sickness absence data from Denmark, we aimed to show whether this assumption holds true or not. METHODS: We used...... a linear regression analysis to analyze time trends in sickness absence based on datasets from the Danish Employers Confederation, the State Employer's Authority, the Labour Force Survey, and Statistics Denmark. RESULTS: The findings from the Confederation of Danish Employers, the State Employer......'s Authority, and the Labor Force Survey indicated a stable and largely unaltered pattern of sickness absence during the last 20 years. Findings from Statistics Denmark showed an increase in the cumulative incidence proportion from 6.6 to 7.5% among employed people between 2000 and 2007. CONCLUSION: Our data...

  1. The Sale of Alcohol in Denmark

    DEFF Research Database (Denmark)

    la Cour, Lisbeth; Milhøj, Anders

    2005-01-01

    In the following we will analyse the sale of alcohol in Denmark. Various figures related to this question are published by Statistics Denmark at different frequencies. Our main concern will be with quarterly data for the sale of beer, wine and spirits from the period 1990 - 2004. Our two hypotheses...... are: First we want to convince the reader that the total sale of alcohol in Denmark since 1980 has been fairly stable. By total sale we mean the total sale of 100% alcohol so the three categories - beer, wine and spirits are measured in litres of 100% alcohol equivalents. In order to convince...... the reader that the total sale of alcohol has been fairly constant we will present graphs and various indicators and tests of the degree of temporal dependence in this series. The overall impression from this analysis is that our first hypothesis seems to be supported -at least not contradicted - by the data...

  2. System Protection Schemes in Eastern Denmark

    DEFF Research Database (Denmark)

    Rasmussen, Joana

    etc. Stigsnæs power plant could possibly improve the reactive power support in emergency situations, as it is the closest power plant in the southern part of the system. In general, rescheduling power plants and voltage regulation at remote generators (MVAr adjustment) are not considered the most......% of the wind generation capacity in Eastern Denmark. The restricted reactive power transfer from the 132-kV main system is the key indicator of voltage instability. The high load situation with high wind generation is considered a worst-case scenario in relation to serious problems with reactive power. Line...... Units placed at strategic points are evaluated as an efficient tool for power system monitoring of important 400 kV and 132 kV transmission corridors in Eastern Denmark. The first PMU is connected to a 400 kV bus near Asnæs power plant, the largest generating unit in Eastern Denmark. The PMU in Radsted...

  3. Nomination of the Globigerina Limestone of the Maltese Islands as a "Global Heritage Stone Resource"

    Science.gov (United States)

    Cassar, JoAnn

    2016-04-01

    The Maltese Islands consist of two main islands, Malta and Gozo, as well as a small number of islets, and lie in the central Mediterranean Sea approximately 90 km south of Sicily. Although only 316 square kilometres in size, the Islands contain a rich concentration of archaeological sites and historic buildings, as well as vernacular architecture and modern buildings, for the most part built of the local Globigerina Limestone, which is one of the few natural resources of the Islands. This stone can be described as a typical "soft limestone", very easy to carve and shape. It forms part of the large family of Oligo-Miocene "soft limestones" widely diffused in the Mediterranean Basin. The Maltese Globigerina Limestone Formation is one of five main Formations, and varies in thickness from 20 to over 200 m. The material used for building is located stratigraphically in the lower part of the Globigerina Limestone Formation, called the Lower Globigerina Limestone. This Formation is stratified into thick beds at outcrop. Sections where bioturbation is concentrated often also occur. This limestone is fine-grained, yellow to pale grey in colour, almost wholly composed of the tests of globigerinid planktonic foraminifera. Petrographically, Globigerina Limestone can be described as a bioclastic packstone, with bioclastic wackestones also occurring. This limestone has always been used as the predominant building material in the Islands. The Maltese prehistoric Temples, which were constructed approximately 6000 years ago, bear testimony to this. Between 1530 and 1798 the Order of the Knights of St John built kilometres of fortifications in this same material to protect the Island from the expanding Ottoman Empire. Fortifications, impressive churches, auberges and palaces were built of this stone during this period. The capital city of Valletta, a rich and dense manifestation of Baroque architecture in Globigerina Limestone, is included on the UNESCO World Heritage List, as are

  4. Experimental study and mechanism analysis of modified limestone by red mud for improving desulfurization

    Energy Technology Data Exchange (ETDEWEB)

    Liu, Hongtao; Han, Kuihua; Niu, Shengli; Lu, Chunmei; Liu, Mengqi; Li, Hui [Shandong Univ., Jinan (China). School of Energy and Power Engineering

    2013-07-01

    Red mud is a type of solid waste generated during alumina production from bauxite, and how to dispose and utilize red mud in a large scale is yet a question with no satisfied answer. This paper attempts to use red mud as a kind of additive to modify the limestone. The enhancement of the sulfation reaction of limestone by red mud (two kinds of Bayer process red mud and one kind of sintering process red mud) are studied by a tube furnace reactor. The calcination and sulfation process and kinetics are investigated in a thermogravimetric (TG) analyzer. The results show that red mud can effectively improve the desulfurization performance of limestone in the whole temperature range (1,073-1,373K). Sulfur capacity of limestone (means quality of SO{sub 2} which can be retained by 100mg of limestone) can be increased by 25.73, 7.17 and 15.31% while the utilization of calcium can be increased from 39.68 to 64.13%, 60.61 and 61.16% after modified by three kinds of red mud under calcium/metallic element (metallic element described here means all metallic elements which can play a catalytic effect on the sulfation process, including the Na, K, Fe, Ti) ratio being 15, at the temperature of 1,173K. The structure of limestone modified by red mud is interlaced and tridimensional which is conducive to the sulfation reaction. The phase composition analysis measured by XRD of modified limestone sulfated at high temperature shows that there are correspondingly more sulphates for silicate and aluminate complexes of calcium existing in the products. Temperature, calcium/metallic element ratio and particle diameter are important factors as for the sulfation reaction. The optimum results can be obtained as calcium/metallic element ratio being 15. Calcination characteristic of limestone modified by red mud shows a migration to lower temperature direction. The enhancement of sulfation by doping red mud is more pronounced once the product layer has been formed and consequently the promoting

  5. Septic arthritis in the central part of Denmark

    DEFF Research Database (Denmark)

    Asmussen Andreasen, Rikke; Andersen, Nanna Skaarup; Just, Søren Andreas

    Septic arthritis in the central part of Denmark, Annals of the Rheumatic Diseases, volume 73, supplement 2, p. 287......Septic arthritis in the central part of Denmark, Annals of the Rheumatic Diseases, volume 73, supplement 2, p. 287...

  6. Simulate to regulate - Denmark's virtual road pricing programme

    DEFF Research Database (Denmark)

    Kildebogaard, Jan

    1999-01-01

    The article describes the reseach programme on electronic road pricing launched at the Technical University of Denmark.......The article describes the reseach programme on electronic road pricing launched at the Technical University of Denmark....

  7. Male and Female Labour Supply in Denmark

    DEFF Research Database (Denmark)

    Graversen, Ebbe Krogh

    1996-01-01

    This paper estimates labour supply for married and single men and women in Denmark in 1990, using a double-hurdle model which allows involuntary unemployment due to for example demand restrictions, and fixed costs of work. A labour supply f unction based on a variant of the Stone-Geary utility...... function with a nonlinear wage rate is estimated. Elasticities of labour supply with respect to wage, income and tax rate are presented. Finally, the effects on the four groups of a few recently discussed tax and transfer reforms in Denmark are simulated....

  8. Surviving severe traumatic brain injury in Denmark

    DEFF Research Database (Denmark)

    Odgaard, Lene; Poulsen, Ingrid; Kammersgaard, Lars Peter

    2015-01-01

    PURPOSE: To identify all hospitalized patients surviving severe traumatic brain injury (TBI) in Denmark and to compare these patients to TBI patients admitted to highly specialized rehabilitation (HS-rehabilitation). PATIENTS AND METHODS: Patients surviving severe TBI were identified from...... severe TBI were admitted to HS-rehabilitation. Female sex, older age, and non-working status pre-injury were independent predictors of no HS-rehabilitation among patients surviving severe TBI. CONCLUSION: The incidence rate of hospitalized patients surviving severe TBI was stable in Denmark...

  9. Assessing the effectiveness of Denmark's waste tax

    DEFF Research Database (Denmark)

    Andersen, Mikael Skou

    1998-01-01

    By the mid-l980s, Denmark had a serious waste disposal problem: Its per capita generation of waste was among the highest in Europe and rising; it was running out of landfill space, with Copenhagen set to exhaust its landfill capacity in a short time; and there was a great deal of concern about air...... pollution from incinerators. Denmark responded to this situation by adopting a comprehensive waste management policy that included an innovative tax on waste designed to promote the reuse and recycling of many types of waste. Now that the tax has been in place for a decade, there is enough data to assess...

  10. Management Accounting in Denmark; Theory and Practice

    DEFF Research Database (Denmark)

    Israelsen, Poul; Andersen, Michael; Rohde, Carsten

    1996-01-01

    , the main results of two new empirical studies are presented one on product costing and the other on identifying the adoption of “modern cost management techniques” in Denmark. The article places both current theory and practice in their historical context. In the former, this is done through an outline......The article describes the present state of cost and management accounting in Denmark within “mainstream accounting”, both as regards theory and practice. In the case of theory, there has been a gradual convergence of views. The essence of these views is briefly described. Concerning practice...

  11. Implementation of Renewable Energy Systems in Denmark

    DEFF Research Database (Denmark)

    Meyer, Niels I

    1997-01-01

    Denmark has been one of the first countries in the world to commit itself to a sustainable energy development. This has been substantiated by two official action plans from 1990 and 1996 with emphasis on energy efficiency and supply systems based on renewable energy. In year 2005, renewable energy...... sources are planned to cover 12-14% and in year 2030 about 35% of total Danish energy demand. This paper reviews the experiences with implementation of renewable energy in Denmark with a focus on wind power and biomass....

  12. Maternal mortality in Denmark, 1985-1994

    DEFF Research Database (Denmark)

    Andersen, Betina Ristorp; Westergaard, Hanne Brix; Bødker, Birgit

    2008-01-01

    OBJECTIVES: In Denmark, maternal mortality has been reported over the last century, both locally through hospital reports and in national registries. The purpose of this study was to analyze data from national medical registries of pregnancy-related deaths in Denmark 1985-1994 and to classify them...... of Diseases (ICD-10). All cases were classified using the UK CEMD classification. Cases of maternal death were further evaluated by an audit group. RESULTS: 311 cases were classified. 92 deaths (29.6%) occurred 42 days), 1 woman died from a direct obstetric cause, 46 from indirect causes, and 172 from...

  13. Outcome of breast cancer screening in Denmark

    DEFF Research Database (Denmark)

    Lynge, Elsebeth; Bak, Martin; von Euler-Chelpin, My

    2017-01-01

    were node negative and 40% ≤10 mm. False-positive rate was around 2%; higher for North Denmark Region than for the rest of Denmark. Three out of 10 breast cancers in screened women were diagnosed as interval cancers. Conclusions: High coverage by examination and low interval cancer rate are required...... for screening to decrease breast cancer mortality. Two pioneer local screening programs starting in the 1990s were followed by a decrease in breast cancer mortality of 22-25%. Coverage by examination and interval cancer rate of the national program were on the favorable side of values from the pioneer programs...

  14. Offshore investments: Denmark shows the way

    International Nuclear Information System (INIS)

    Anon.

    1998-01-01

    This article presents an overview of the use of wind power in Denmark and discusses the tremendous growth in the manufacture of wind turbines since 1981 with Denmark holding some 60% of the worlds' wind turbine market. The move to offshore wind farms is explained in terms of the shortage of land and the quality of the offshore wind, and details of the Tuno Knob pilot offshore wind farm are given. Offshore wind power in Europe, the challenges to offshore operations, the costs involved, environmental effects of the use of offshore wind, and the growing amount of wind power capacity are discussed

  15. Mortality among anesthesiologists in Denmark, 1973-95

    DEFF Research Database (Denmark)

    Juel, K; Husum, Bent; Viby-Mogensen, J

    2002-01-01

    Preliminary data from Sweden indicating that anesthesiologists have a high mortality risk has caused a lot of concern in Denmark. The aim of this study therefore was to compare mortality between consultant anesthesiologists and other consultants in Denmark.......Preliminary data from Sweden indicating that anesthesiologists have a high mortality risk has caused a lot of concern in Denmark. The aim of this study therefore was to compare mortality between consultant anesthesiologists and other consultants in Denmark....

  16. Seismic investigations in downtown Copenhagen, Denmark

    Science.gov (United States)

    Martinez, K.; Mendoza, J. A.; Olsen, H.

    2009-12-01

    Near surface geophysics are gaining widespread use in major infrastructure projects with respect to geotechnical and engineering applications. The development of data acquisition, processing tools and interpretation methods have optimized survey production, reduced logistics costs and increase results reliability of seismic surveys during the last decades. However, the use of geophysical methods under urban environments continues to face challenges due to multiple noise sources and obstacles inherent to cities. A seismic investigation was conducted in Copenhagen aiming to produce information needed for hydrological, geotechnical and groundwater modeling assessments related to the planned Cityringen underground metro project. The particular objectives were a) map variations in subsurface Quaternary and limestone properties b) to map for near surface structural features. The geological setting in the Copenhagen region is characterized by several interlaced layers of glacial till and meltwater sand deposits. These layers, which are found unevenly distributed throughout the city and present in varying thicknesses, overlie limestone of different generations. There are common occurrences of incised valley structures containing localized instances of weathered or fractured limestone. The surveys consisted of combined seismic reflection and refraction profiles accounting for approximately 13 km along sections of the projected metro line. The data acquisition was carried out using standard 192 channels arrays, receiver groups with 5 m spacing and a Vibroseis as a source at 5 m spacing. In order to improve the resolution of the data, 29 Walkaway-Vertical Seismic Profiles were performed at selected wells along the surface seismic lines. The refraction data was processed with travel-time tomography and the reflection data underwent standard interpretation. The refraction data inversion was performed twofold; a surface refraction alone and combined with the VSP data. Three

  17. Effective stress law for the permeability and deformation of four porous limestones

    Science.gov (United States)

    Wang, Y.; Meng, F.; Wang, X.; Baud, P.; Wong, T. F.

    2017-12-01

    The effective stress behavior of a rock is related to the geometric of its pore space. In a microscopically homogeneous assemblage, effective stress coefficients for permeability, volumetric strain and porosity change are predicted to be equal to or less than unity. Experimental measurements are in basic agreement with this prediction, with exceptions particularly in clay-rich sandstones, for which effective stress coefficient for permeability up to 7 was documented. Little is known about carbonates, but Ghabezloo et al. [2009] studied the permeability of an oolitic limestone (from Nimes, France) with 17% porosity and reported effective stress coefficients up to 2.4. We investigated this phenomenon in Indiana, Leitha, Purbeck, and Thala limestones with porosities of 13-30%. Measurements were made at room temperature on water-saturated samples at confining and pore pressures of 7-15 MPa and 1-3 MPa, respectively. Unlike previous studies limited to the permeability, we also determined the effective stress coefficients for volumetric strain and porosity change. Indiana limestone is oolitic, and not surprisingly its behaviour was similar to Nimes limestone, with an effective stress coefficient for permeability of 2.5. Our Indiana limestone data showed that whereas the effective stress coefficient for volumetric strain was 1. Measurements on Purbeck and Thala limestones are consistent with these inequalities, with effective stress coefficients for permeability and porosity change >1 and that for volumetric strain Berryman [1992] analyzed theoretically a rock made up of two porous constituents. Our new data are in agreement with inequalities he derived for these effective stress coefficients. For comparison, we also studied Leitha limestone predominately made up of macropores. Our measurements showed that in this case all three effective stress coefficients were <1, as predicted for a microscopically homogeneous assemblage.

  18. Field and laboratory experiments on high dissolution rates of limestone in stream flow

    Science.gov (United States)

    Hattanji, Tsuyoshi; Ueda, Mariko; Song, Wonsuh; Ishii, Nobuyuki; Hayakawa, Yuichi S.; Takaya, Yasuhiko; Matsukura, Yukinori

    2014-01-01

    Field and laboratory experiments were performed to examine dissolution rates of limestone in stream flow. Field experiments were conducted in three stream sites (A-C) with different lithological or hydrological settings around a limestone plateau in the Abukuma Mts., Japan. Sites A and B are allogenic streams, which flow from non-limestone sources into dolines, and site C has a karst spring source. Tablets made of limestone from the same plateau with a diameter of 3.5 cm and a thickness of 1 cm were placed in the streams for 3 years (2008-2011) where alkalinity, pH and major cation concentrations were measured periodically. The saturation indices of calcite (SIc) of stream water were - 2.8 ± 0.4 at site A, - 2.5 ± 0.4 at site B and - 0.5 ± 0.4 at site C. Annual weight loss ratios for tablets were extremely high at site A (0.11-0.14 mg cm- 2 d- 1), high at site B (0.05 mg cm- 2 d- 1), and low at site C (0.005 mg cm- 2 d- 1). The contrasting rates of weight loss are mainly explained by chemical conditions of stream water. In addition, laboratory experiments for dissolution of limestone tablets using a flow-through apparatus revealed that flow conditions around the limestone tablet is another important factor for dissolution in the stream environment. These results revealed that limestone dissolves at a rapid rate where water unsaturated to calcite continuously flows, such as in an allogenic stream.

  19. The Influence of Limestone And Calcium Hydroxide Addition in Asphalt Concrete Mixture

    Directory of Open Access Journals (Sweden)

    Gunaran Danny

    2016-06-01

    Full Text Available As time passes, flood often occurs in the area of Gunung Sahari, Jakarta Utara. The flood damages concrete asphalt mixture and it needs particular improvement. Therefore, the purpose of this research is to know the effects of the added combination of limestone and calcium hydroxide on concrete asphalt mixture as a filler resistant to flood. Concrete asphalt mixture that filled with the combination of limestone and calcium hydroxide is a mixture that is made with non-uniform aggregat gradations, filler and liquid asphalt mixed and solidified in a heat state. Limestone and calcium hydroxide mixture is used because both materials included in the most numerous sedimentary rock. Concrete asphalt mixture with the filler combination of limestone and calciumhydroxide is made with optimum asphalt 5.4%, one variation level of limestone (15%, and calcium hydroxide (15%, and three variation levels of fillers (5%, 7.5%, and 15% to get optimum asphalt levels and filler levels that are compatible with flood condition. Based on optimum asphalt 5.4% towards aggregate total weight and combined level of limestone and calcium hydroxide suitable for the conditions, 8.75 % towards fine aggregate weight. The characteristic value of limestone and calcium hydroxide mixture in maximum condition is VIM 4.55%, VMA 18.83%, stability 1031.26 kg and flow 4.93 mm, where the characteristic value meets the established specifications standard by Pekerjaan Umum Bina Marga. From the result, it is showed that the use of the mixture can decrease the value of stability and increase the value of flow, compared with asphalt and filler with normal levels.

  20. Vocational Education and Training in Denmark. First Edition.

    Science.gov (United States)

    Nielsen, Soren P.

    This monograph examines vocational education and training (VT) in Denmark. Section 1 presents background information/framework data on the following: Denmark's political and administrative structure; population, employment, and unemployment; and the Danish economy. In section 2, the history of VT in Denmark is traced from before 1870 to the…

  1. Social suffering and marginalisation among Eastern European students in Denmark

    DEFF Research Database (Denmark)

    Wilken, Lisanne; Dahlberg, Mette Ginnerskov

    2016-01-01

    European students in Denmark In recent years Denmark has become a favoured destination for international students from the (South) Eastern Member States of the European Union. In 2013 Denmark was the 2nd most favoured destination for students from Latvia and Lithuania, the 6th most favoured destination...

  2. Discrimination and Anti-discrimination in Denmark

    DEFF Research Database (Denmark)

    Olsen, Tore Vincents

    The purpose of this report is to describe and analyse Danish anti-discrimination legislation and the debate about discrimination in Denmark in order to identify present and future legal challenges. The main focus is the implementation of the EU anti-discrimination directives in Danish law...

  3. Chemical Intolerance among Hairdressers in Denmark

    DEFF Research Database (Denmark)

    Tran, Marie Thi Dao; Elberling, Jesper; Skovbjerg, Sine

    2013-01-01

    To investigate the prevalence and the severity of fragrance-related symptoms among hairdressers in Denmark compared with the Danish general population. Further, to characterize former hairdressers who are severely chemically intolerant to fragranced products in relation to sex, age and health...

  4. Interviewrapport om Business Region North Denmark

    DEFF Research Database (Denmark)

    Larsen, Peter Wilgaard; Pedersen, Anne Grethe Julius

    2017-01-01

    Rapporten er skrevet til sekretariat og bestyrelse i Business Region North Denmark som en tilbagemelding på ca. 25 interviews lavet med borgmestre, kommunaldirektører og andre centrale aktører i BRN. Rapporten indeholder sammenfatning, analyse og anbefalinger....

  5. A review of paediatric tuberculosis in Denmark

    DEFF Research Database (Denmark)

    Hatleberg, Camilla; Prahl, Julie B; Rasmussen, Jeppe Nørgaard

    2014-01-01

    Paediatric tuberculosis (TB) is a key indicator for recent transmission and presents a reservoir for the disease. We describe trends in epidemiology, microbiological characteristics and treatment outcome in Denmark between 2000 and 2009. Data was retrieved from the national TB surveillance system...

  6. The cost of tuberculosis in Denmark

    DEFF Research Database (Denmark)

    Fløe, Andreas; Hilberg, Ole; Wejse, Christian

    Hypothesis: Tuberculosis (TB) patients carry higher direct health-related and indirect costs than the general population. Objective: To calculate the economic burden of TB in Denmark, including the health-related costs of treatment and the indirect costs for society in a national retrospective case...

  7. High mortality from tuberculosis in Denmark

    DEFF Research Database (Denmark)

    Fløe, Andreas; Hilberg, Ole; Wejse, Christian

    Hypothesis: We hypothesize that survival among TB-patients in Denmark is lower than among the general population. Objective: To evaluate survival in a national Danish TB cohort, and to estimate relative survival compared with population controls with no TB diagnosis, in a retrospective case-contr...

  8. Macroalgae - Production and Biorefining in Denmark

    DEFF Research Database (Denmark)

    Seghetta, Michele; Hou, Xiaoru; Bastianoni, Simone

    Macroalgae is a key biomass for the development of circular economy. This study analyzes the environmental sustainability of a macroalgae production and conversion system in Denmark. A brown algae model based on Laminaria digitata and Saccharina latissima is utilized as feedstock for a biorefinery...

  9. Denmark's Boernehavens: A Place to Grow

    Science.gov (United States)

    Mecham, Neil A.

    2010-01-01

    During the author's trips to Denmark as an instructor of American college students studying abroad, he led groups to visit several "boernehavens," which are the Danish equivalents of U.S. preschools for children ages 3 to 5. Danish society values confident individuals who can take initiative when faced with challenges and opportunities.…

  10. The Seeds of Social Change from Denmark.

    Science.gov (United States)

    Roberson, Donald N., Jr.

    N.F.S. Grundtvig was a priest, historian, poet, and founder of the Danish Folk High School. He believed that education for adults should be geared to adults and wanted schools to be independent of the church. Grundtvig was among the first to call for Denmark's schools to use the native Danish language. Grundtvig believed that each group or culture…

  11. Bio-SNG potential assessment: Denmark 2020

    Energy Technology Data Exchange (ETDEWEB)

    Ahrenfeldt, J.; Thomsen, T. (Risoe DTU, Roskilde (Denmark)); Joergensen, Betina (Dansk Gasteknisk Center A/S, Hoersholm (Denmark))

    2010-11-15

    In this project the potential for SNG based on biomass gasification has been sought elucidated. As part of the project a model for simulation of biomass in Denmark has been developed. The conclusion is that SNG can substitute a significant amount of natural gas, but the energy efficiency should be improved. (Author)

  12. Bio-SNG potential assessment: Denmark 2020

    DEFF Research Database (Denmark)

    Ahrenfeldt, Jesper; Jørgensen, Betina; Thomsen, Tobias

    In this project the potential for SNG based on biomass gasification has been sought elucidated. As part of the project a model for simulation of biomass in Denmark has been developed. The conclusion is that SNG can substitute a significant amount of natural gas, but the energy efficiency should...

  13. Social housing in Portugal and Denmark

    DEFF Research Database (Denmark)

    Alves, Sonia; Andersen, Hans Thor

    The social housing sector has become increasingly residualized and segregated in Portugal and Denmark. Whilst there is a considerable difference between the systems in these two countries, as regards issues of management and governance, dominant rent regimes (cost rent, social rent) or eligibility...

  14. Statin use and Parkinson's disease in Denmark

    DEFF Research Database (Denmark)

    Ritz, Beate; Manthripragada, Angelika D; Qian, Lei

    2010-01-01

    The objective of this study was to investigate whether statin (3-hydroxy-3-methylglutaryl-coenzyme A reductase inhibitor) use is associated with risk of Parkinson's disease (PD) in Denmark. We identified 1,931 patients with a first time diagnosis of PD reported in hospital or outpatient clinic...

  15. INOPS Survey data report for Denmark

    DEFF Research Database (Denmark)

    Lindholst, Andrej Christian; Hansen, Morten Balle; Østergaard, Jeppe

    This data report provides statistics on the organization, management and performance of different ways of providing maintenance services within the municipal park and road sector(s) in Denmark. The statistics rely on data collected in the period from November 2014 to February 2015 through an online...

  16. Denmark - Chapter in Handbook of Global Bioethics

    DEFF Research Database (Denmark)

    Nielsen, Linda; Faber, Berit A.

    2014-01-01

    This chapter about bioethics in Denmark focuses on specific Danish characteristics. These are the early start of a bioethics debate, legislation and bioethics councils; the independence of the councils and the parliamentarians voting on ethical issues; the introduction and extraordinary importance...... of laymen as a part of the bioethical debate and decisions; and the strong focus on debate and educational tools....

  17. Environmental economy account for Denmark 1999

    International Nuclear Information System (INIS)

    Anon.

    2001-01-01

    The article deals with energy consumption, energy reserves and air pollution in relation to the Danish National Account. The statistics are taken from the separate environment account, which is consistent as 'satellite' to the real national account. The environmental account from Denmark is an example of a system of the so-called NAMEA-type (National Accounting Matrix including Environmental Accounts). (EHS)

  18. Policies in Dementia, comparing Germany and Denmark

    DEFF Research Database (Denmark)

    Bjerregaard, Lene Berit Skov

    2017-01-01

    In Short Germany as well as Denmark are focusing on the same issues regarding Dementia, as other European Countries are, too. The key issues in the national strategies are: timely diagnosis, self-determination for the person with dementia, unbroken “care chain”, better possibilities for the relief...

  19. Chronic obstructive pulmonary disease in Denmark

    DEFF Research Database (Denmark)

    Lykkegaard, Jesper; Kristensen, Gustav N

    2016-01-01

    BACKGROUND: During the 80s and 90s the mortality and number of hospitalisations due to chronic obstructive pulmonary disease (COPD) in the country of Denmark almost doubled. Since then there has been a plateau. OBJECTIVE: To analyse age, period, and cohort effects on rates of deaths and first...

  20. The Strategic Electrochemical Research Center in Denmark

    DEFF Research Database (Denmark)

    Mogensen, Mogens Bjerg; Hansen, Karin Vels

    2011-01-01

    A 6-year strategic electrochemistry research center (SERC) in fundamental and applied aspects of electrochemical cells with a main emphasis on solid oxide cells was started in Denmark on January 1st, 2007 in cooperation with other Danish and Swedish Universities. Furthermore, 8 Danish companies...

  1. Environmental economy account for Denmark 1997

    International Nuclear Information System (INIS)

    Anon.

    1999-01-01

    The article deals with energy consumption, energy reserves and air pollution in relation to the Danish National Account. The statistics are taken from the separate environment account, which is consistent as 'satellite' to the real national account. The environmental account from Denmark is an example of a system of the so-called NAMEA-type (National Accounting Matrix including Environmental Accounts). (EHS)

  2. Environmental economy account for Denmark 1998

    International Nuclear Information System (INIS)

    Anon.

    2000-01-01

    The article deals with energy consumption, energy reserves and air pollution in relation to the Danish National Account. The statistics are taken from the separate environment account, which is consistent as 'satellite' to the real national account. The environmental account from Denmark is an example of a system of the so-called NAMEA-type (National Accounting Matrix including Environmental Accounts). (EHS)

  3. Dioxin in the atmosphere of Denmark

    Energy Technology Data Exchange (ETDEWEB)

    Vikelsoee, J.; Hovmand, M.F.; Andersen, Helle V.; Bossi, R.; Johansen, Elsebeth; Chrillesen, M.A.

    2006-03-15

    Occurrence and geographical distribution of dioxin was investigated in air and deposition at selected locations in Denmark, three forest sites in the background area, a city site in Copenhagen and a village site. At two sites simultaneously determination of dioxins concentrations in the ambient atmosphere and bulk precipitation were carried out during a period of three years. (au)

  4. Considering foreign direct investment in Denmark

    DEFF Research Database (Denmark)

    Gjerding, Allan Næs

    2005-01-01

    The present paper examines the aspect of relational assets and relates it to the strategic decision on undertaking foreign direct investment (FDI). The point of departure is the increasing importance of FDI globally as well as in the Danish economy, and the observation that even though Denmark...

  5. Foreign Direct Investments into Denmark before 1939

    DEFF Research Database (Denmark)

    Pedersen, Kurt; Strandskov, Jesper

    2008-01-01

    Abstract Drawing on a new database, this article presents the first systematic description and assessment of inward FDI into Denmark before World War II. A total of 168 cases were identified, with British, American and German firms dominating the overall picture as might be expected. The composit...

  6. Dietary patterns in Them and Copenhagen, Denmark

    DEFF Research Database (Denmark)

    Helms, P; Jørgensen, I M; Paerregaard, A

    1982-01-01

    Four-day weighing and 24-hour recall were used to record food consumption in groups of 30 men, aged 50-59 years, in 2 areas of Denmark: Them, a rural Danish community, and Copenhagen. Fat consumption was found to be higher in Them, whereas alcohol consumption was higher in Copenhagen. The absolut...

  7. Planning of high school examinations in Denmark

    DEFF Research Database (Denmark)

    Vidal, Rene Victor Valqui; Hansen, Michael Pilegaard

    1995-01-01

    This paper presents a computer based support system used to plan high school examinations in Denmark. We will discuss the methods and techniques used to solve such a complex and large scale combinatorial problem. Decomposition and other heuristic principles have been used extensively to develop...

  8. Development of Seasonal Storage in Denmark

    DEFF Research Database (Denmark)

    Heller, Alfred

    2000-01-01

    National survey on seasonal (thermal, large-scale) storage activities in Denmark. A storage programme under the Danish Energy Agency. Programme background, objectives, activities, projects and results.Technologies presented: Pit water storage, gravel water storage with pipe heat exchangers, lining...

  9. Molecular Typing of Treponema pallidum in Denmark

    DEFF Research Database (Denmark)

    Salado-Rasmussen, Kirsten; Cowan, Susan; Gerstoft, Jan

    2016-01-01

    The aim of this nationwide study is to determine the strain type diversity among patients diagnosed with syphilis by PCR during a 4-year period in Denmark. Epidemiological data, including HIV status, for all patients were obtained from the Danish national syphilis registration system. Molecular s...... diagnosed with a wide spectrum of different strain types of Treponema pallidum....

  10. Genetics of congenital hypogonadotropic hypogonadism in Denmark

    DEFF Research Database (Denmark)

    Tommiska, Johanna; Känsäkoski, Johanna; Christiansen, Peter

    2014-01-01

    of HH later in life. We examined the genetics and clinical features of CHH in Denmark. Forty-one male patients were screened for mutations in KAL1, FGFR1, FGF8, PROK2, PROKR2, GNRHR, TAC3, TACR3, and KISS1R. CHD7 was screened in two patients with hearing loss. In 12 patients, a molecular genetic cause...

  11. Willingness to Pay for Insurance in Denmark

    DEFF Research Database (Denmark)

    Hansen, Jan V.; Højbjerg Jacobsen, Rasmus; Lau, Morten

    2016-01-01

    Danish population, and information on household income and wealth from registers at Statistics Denmark. The results show that the willingness to pay is marginally higher than the actuarially fair value under expected utility theory, but significantly higher under rank-dependent utility theory, and up...... to 600 percent higher than the actuarially fair value....

  12. Full institutionalisation of regionalism in Denmark

    DEFF Research Database (Denmark)

    Larsen, Peter Wilgaard; Galland, Daniel

    edge for a Region when taking on the opportunities offered and the challenges raised by globalisation to deliver endogenous growth of the region. For the institutionalisation process that de-institutionalised competing institutions and leads to full institutionalisation of regionalism in Denmark could...

  13. Epidemiology of acute vertebral osteomyelitis in Denmark

    DEFF Research Database (Denmark)

    Krogsgaard, M R; Wagn, P; Bengtsson, J

    1998-01-01

    We studied the epidemiology of acute, non-tuberculous, hematogenous vertebral osteomyelitis in Denmark during 1978-1982. 137 patients fulfilled the criteria for acute vertebral osteomyelitis. The incidence was 5/mill/year. There were no cases in the age group 20-29 years. The highest incidence...

  14. The strange birth of liberal Denmark

    DEFF Research Database (Denmark)

    Henriksen, Ingrid; Sharpe, Paul; Lampe, Markus

    2012-01-01

    The usual story of the ‘first era of globalization’ at the end of the nineteenth century sees Denmark as something of an outlier: a country which, like the UK, resisted the globalization backlash in the wake of the inflow of cheap grain from the New World, but where agriculture, rather than going...

  15. The Strange Birth of Liberal Denmark

    DEFF Research Database (Denmark)

    Henriksen, Ingrid; Lampe, Markus; Sharp, Paul Richard

    The usual story of the "first era of globalization" at the end of the nineteenth century sees Denmark as something as an outlier: a country which, like Britain, resisted the globalization backlash in the wake of the inflow of cheap grain from the New World, but where agriculture, rather than goin...

  16. Capsule report: Adipic acid-enhanced lime/limestone test results at the EPA alkali scrubbing test facility

    Energy Technology Data Exchange (ETDEWEB)

    Burbank, D.A.; Wang, S.C.

    1982-04-01

    The fifth in a series of reports describing the results of the Shawnee Lime and Limestone Wet Scrubbing Test Program, the report describes the results of adipic acid-enhanced limestone wet scrubbing systems. A primary objective of the program was to enhance sulfur oxide removal and improve the reliability and economics of lime and limestone wet scrubbing systems by use of adipic acid as a chemical additive.

  17. Limestones as a paleobathymeter for reconstructing past seismic activities: Muroto-misaki, Shikoku, southwestern Japan

    Science.gov (United States)

    Iryu, Y.; Maemoku, H.; Yamada, T.; Maeda, Y.

    2009-03-01

    Muroto-misaki (Cape Muroto) is located at the southern tip of the eastern half of Shikoku, southwestern Japan and is ~ 100 km north of the Nankai Trough where the Philippine Sea Plate is being subducted beneath the Eurasian Plate. Therefore, the Muroto-misaki area has been seismically uplifted. Sedimentologic analyses were conducted on Holocene limestones that occur along the coast from Muroto-misaki to Meoto-iwa, located ~ 13 km north of the cape. The limestones are limited to less than 9.2 m in elevation. The limestones are up to 4.4 m in mean diameter, up to 0.5 m in thickness, and consist mainly of fossilized sessile organisms, including annelids, corals, bryozoans, encrusting foraminifers, barnacles, nongeniculate coralline algae, and, to a lesser extent, molluscs and peyssonneliacean algae. Acicular and equant cements are minor components. Acicular cements are found in semi-closed spaces between coralline algal crusts and their substrates. The modal composition of limestones was determined by a point-counting technique. Based on the biotic composition, the Holocene limestones can be classified into six types (Types I to VI). A comparison of the vertical distribution of these rock types with that of modern sessile organisms indicates that the top of Type I limestone, which is characterized by the occurrence of hermatypic corals, corresponds approximately to the mean low water springs when the limestones formed. A difference in the highest occurrence of Type I limestone between two sites may represent the variation in the total amount of uplift over the last 1000 to 1500 years, which resulted in an apparent northward decline of paleo-mean low water springs at a rate of ~ 10 cm/km. Therefore, the Holocene limestones are a good paleobathymeter to reconstruct past seismic activities in this area. This study shows that warm temperate carbonate deposits are as excellent recorders of geologic events, such as the timing and scale of repeated coseismic uplifts and

  18. The Significance of Podpe limestone in the Cultural Heritage of Slovenia

    Science.gov (United States)

    Kramar, Sabina; Bedjanič, Mojca; Mirtič, Breda; Mladenović, Ana; Rožič, Boštjan; Skaberne, Dragomir; Zupančič, Nina

    2013-04-01

    Podpeč limestone is characterized by its dark grey, or nearly black colour, with white fossil shells of the Lithiotis. These beds, which have been dated as Lower Jurassic, occur in southern and south-western Slovenia, and are particularly common in areas southwest of Ljubljana. The main quarry, which is not active, is located next to the village of Podpeč near Ljubljana, and has been declared as a geological natural value of national importance; as such, it is officially protected as a natural monument. In the close vicinity of the village there are some other smaller quarries, but all of them have been abandoned. With its very low porosity (0.9%) and water absorption (0.13 - 0.30 % by mass), but relatively high compressive strength (185 MPa), this limestone is quite durable, although its colouring becomes somewhat bleached when situated outdoors. The use of Podpeč limestone was first documented in the case of the Roman period in Slovenia, when it was used for funerary stelae, votive altars, boundary stones, and other artefacts. At the end of the 5th Century AD, with the fall of the Roman Empire, stone-cutting ceased at Podpeč for the next few centuries. Before 1850 Podpeč limestone had no special value. Only very few portals or pilasters made of this stone are known, and no evidence has been found in churches. However, towards the end of the 19th Century Podpeč limestone became better-known, although before the first half of the 20th Century there were no significant stonecutting workshops in Podpeč. After this, stone was supplied progressively from the main quarry. Large numbers of buildings in Ljubljana and central Slovenia have sills, lintels and jambs made of Podpeč limestone. Production stopped in 1967. The internationally renowned Slovenian architect Jože Plečnik (1872-1957) used Podpeč limestone in various Slovenian buildings - the central stadium in Ljubljana, the National University Library, many altars and churches (Bogojina, the Ši\\vska and

  19. Gamma radiation influence on Cladonia substellata (lichen) and its effects on limestone rocks

    International Nuclear Information System (INIS)

    Silva, Helena P. de B.; Colaco, Waldeciro; Pereira, Eugenia C.; Silva, Nicacio H. da

    2009-01-01

    The lichens play an important role in decomposition of the rocky substrate, through the chemical weathering of their substances. This work aimed to determine the influence of gamma Ray on usnic acid production of Cladonia substellata and the influence of chelates formation in limestone rocks. Samples with 2.5 g of C. substellata were packed on paper envelopes for irradiation submission to gamma on a Co-60 source. They received 10 different doses: 5, 7, 10, 15, 20, 30, 40, 50, 60 and 80 Gy. Lichen irradiation was conducted on the gamma irradiator (Co-60), and packed over powdered limestone. Lichen samples were analyzed by High Performance Liquid Chromatography (HPLC) and rocky samples by X-Ray Diffractometry. The X-ray diffractogram obtained from the analysis of limestone not subjected to the action of lichen - control sample was compared with limestone subjected to C. substellata irradiated at doses 10, 30 and 80Gy. Increased production of the usnic acid and changes on the rocky samples were noted. We realized that C. substellata increments the usnic acid biosynthesis as the gamma radiation dose is increased, but there is a limit to it. The chelating effect of the usnic acid on limestone was proportional to the produced amount of the substance, which could be extrapolated to natural conditions, where excessive radiation may influence pedogenesis and ecological succession. (author)

  20. Gamma radiation influence on Cladonia substellata (lichen) and its effects on limestone rocks

    Energy Technology Data Exchange (ETDEWEB)

    Silva, Helena P. de B., E-mail: barrosleny@hotmail.co [Universidade Federal de Pernambuco (UFPE), Recife, PE (Brazil). Nuclear Energy Dept. Energetical and Nuclear Technologies Post-Graduation Program; Colaco, Waldeciro [Universidade Federal de Pernambuco (UFPE), Recife, PE (Brazil). Nuclear Energy Dept.; Pereira, Eugenia C. [Universidade Federal de Pernambuco (UFPE), Recife, PE (Brazil). Geographical Sciences Dept.; Silva, Nicacio H. da [Universidade Federal de Pernambuco (UFPE), Recife, PE (Brazil). Biochemistry Dept.

    2009-07-01

    The lichens play an important role in decomposition of the rocky substrate, through the chemical weathering of their substances. This work aimed to determine the influence of gamma Ray on usnic acid production of Cladonia substellata and the influence of chelates formation in limestone rocks. Samples with 2.5 g of C. substellata were packed on paper envelopes for irradiation submission to gamma on a Co-60 source. They received 10 different doses: 5, 7, 10, 15, 20, 30, 40, 50, 60 and 80 Gy. Lichen irradiation was conducted on the gamma irradiator (Co-60), and packed over powdered limestone. Lichen samples were analyzed by High Performance Liquid Chromatography (HPLC) and rocky samples by X-Ray Diffractometry. The X-ray diffractogram obtained from the analysis of limestone not subjected to the action of lichen - control sample was compared with limestone subjected to C. substellata irradiated at doses 10, 30 and 80Gy. Increased production of the usnic acid and changes on the rocky samples were noted. We realized that C. substellata increments the usnic acid biosynthesis as the gamma radiation dose is increased, but there is a limit to it. The chelating effect of the usnic acid on limestone was proportional to the produced amount of the substance, which could be extrapolated to natural conditions, where excessive radiation may influence pedogenesis and ecological succession. (author)

  1. The effects of lichen cover upon the rate of solutional weathering of limestone

    Science.gov (United States)

    McIlroy de la Rosa, J. P.; Warke, P. A.; Smith, B. J.

    2014-09-01

    The contribution of lichens to the biomodification of limestone surfaces is an area of conflict within bioweathering studies, with some researchers suggesting a protective effect induced by lichen coverage and others a deteriorative effect induced by the same organisms. Data are reported demonstrating the potential role of endolithic lichen, in particular of Bagliettoa baldensis, in the active protection of Carboniferous limestone surfaces from rainfall-induced solutional weathering. During a 12-month microcatchment exposure period in the west of Northern Ireland, average dissolutional losses of calcium are greater from a lichen-free limestone surface compared with a predominantly endolithic lichen-covered surface by just under 1.25 times. During colder winter months, the lichen-free surface experiences calcium loss almost 1.5 times greater than the lichen-covered surface. Using extrapolation to upscale from the micro-catchment sample scale, for the year of sample exposure, the rate of calcium loss is 1.001 g m- 2 a- 1 from lichen-covered limestone surfaces and 1.228 g m- 2 a- 1 from lichen-free bare limestone surfaces. This research has implications for our understanding of karst environments, the contribution of lichens to karren development and the conservation of lichen-colonised dimension stone within a cultural setting.

  2. Actinobacterial diversity in limestone deposit sites in Hundung, Manipur (India and their antimicrobial activities

    Directory of Open Access Journals (Sweden)

    Salam eNimaichand

    2015-05-01

    Full Text Available Studies on actinobacterial diversity in limestone habitats are scarce. This paper reports profiling of actinobacteria isolated from Hundung limestone samples in Manipur, India using ARDRA as the molecular tool for preliminary classification. A total of 137 actinobacteria were clustered into 31 phylotypic groups based on the ARDRA pattern generated and representative of each group was subjected to 16S rRNA gene sequencing. Generic diversity of the limestone isolates consisted of Streptomyces (15 phylotypic groups, Micromonospora (4, Amycolatopsis (3, Arthrobacter (3, Kitasatospora (2, Janibacter (1, Nocardia (1, Pseudonocardia (1 and Rhodococcus (1. Considering the antimicrobial potential of these actinobacteria, 19 showed antimicrobial activities against at least one of the bacterial and candidal test pathogens, while 45 exhibit biocontrol activities against at least one of the rice fungal pathogens. Out of the 137 actinobacterial isolates, 118 were found to have at least one of the three biosynthetic gene clusters (PKS-I, PKS-II, NRPS. The results indicate that 86% of the strains isolated from Hundung limestone deposit sites possessed biosynthetic gene clusters of which 40% exhibited antimicrobial activities. It can, therefore, be concluded that limestone habitat is a promising source for search of novel secondary metabolites.

  3. Stratigraphy and sedimentology of the Upper Cretaceous (Campanian) Anacacho Limestone, Texas, USA

    Science.gov (United States)

    Swezey, C.S.; Sullivan, E.C.

    2004-01-01

    The Upper Cretaceous Anacacho Limestone is exposed in outcrops between the cities of San Antonio and Del Rio, Texas. A detailed study of four outcrops (Blanco Creek section, Sabinal River section, Seco Creek section, Hondo Creek section) shows that the Anacacho Limestone rests on the Upson Clay (which contains fauna of early Campanian age) and is overlain by the Corsicana Marl (which contains fauna of early Maastrichtian age). An unconformity within the Anacacho Limestone is used herein to separate the limestone into a lower member and an upper member. The lower Anacacho member contains fauna of early Campanian age, whereas the upper Anacacho member contains fauna of middle Campanian age. The lower Anacacho member consists predominantly of wackestones to packstones, which are overlain by packstones to grainstones capped by the unconformity. This unconformity is interpreted as a marine flooding surface, delineating a transition from carbonate grainstones deposited in shallow water (reef) that now comprises the Anacacho Mountains. The environment, however, was open to marine water throughout deposition of the Anacacho Limestone. ?? 2004 Elsevier Ltd. All rights reserved.

  4. Porosity development in the Copper Ridge Dolomite and Maynardville Limestone, Bear Creek Valley and Chestnut Ridge, Tennessee

    Energy Technology Data Exchange (ETDEWEB)

    Goldstrand, P.M. [Univ. of Nevada, Reno, NV (United States). Geology Dept.; Menefee, L.S. [Appalachian State Univ., Boone, NC (United States). Dept. of Geology; Dreier, R.B. [Oak Ridge National Lab., TN (United States). Environmental Sciences Div.

    1995-12-01

    Matrix porosity data from deep core obtained in Bear Creek Valley indicate that porosities in the Maynardville Limestone are lithology and depth dependent. Matrix porosities are greater in the Cooper Ridge Dolomite than in the Maynardville Limestone, yet there is no apparent correlation with depth. Two interrelated diagenetic processes are the major controlling factors on porosity development in the Copper Ridge Dolomite and Maynardville Limestone; dissolution of evaporate minerals and dedolomitization. Both of these diagenetic processes produce matrix porosities between 2.1 and 1.3% in the Copper Ridge Dolomite and upper part of the Maynardville Limestone (Zone 6) to depths of approximately 600 ft bgs. Mean matrix porosities in Zones 5 through 2 of the Maynardville Limestone range from 0.8 to 0.5%. A large number of cavities have been intersected during drilling activities in nearly all zones of the Maynardville Limestone in Bear Creek Valley. Therefore, any maynardville Limestone zone within approximately 200 ft of the ground surface is likely to contain cavities that allow significant and rapid flow of groundwater. Zone 6 could be an important stratigraphic unit in the Maynardville Limestone for groundwater flow and contaminant transport because of the abundance of vuggy and moldic porosities. There are large variations in the thickness and lithology in the lower part of the Maynardville (Zones 2, 3, and 4 in the Burial Grounds region). The direction and velocity of strike-parallel groundwater flow may be altered in this area within the lower Maynardville Limestone.

  5. Impacts of Limestone Multi-particle Size on Production Performance, Egg Shell Quality, and Egg Quality in Laying Hens

    Directory of Open Access Journals (Sweden)

    X. Y. Guo

    2012-06-01

    Full Text Available This experiment was conducted to evaluate the effects of single or multi-particle size limestone on the egg shell quality, egg production, egg quality and feed intake in laying hens. A total of 280 laying hens (ISA brown were used in this 10-wk trial. Laying hens were randomly assigned to 4 treatments with 14 replications per treatment and 5 adjacent cages as a replication (hens were caged individually. The experimental treatments were: i L, basal diet+10% large particle limestone; ii LS1, basal diet+8% large particle limestone+2% small particle limestone; iii LS2, basal diet+6% large particle limestone+4% small particle limestone; iv S, basal diet+10% small particle limestone. The egg production was unaffected by dietary treatments. The egg weight in S treatment was lighter than other treatments (p<0.05. The egg specific gravity in S treatment was lower than other treatments (p<0.05. The eggshell strength and eggshell thickness in S treatment were decreased when compared with other dietary treatments (p<0.05. The laying hens in LS1 and LS2 treatment had a higher average feed intake than the other two treatments (p<0.05. Collectively, the dietary multi-particle size limestone supplementation could be as efficient as large particle size limestone.

  6. Prediction of building limestone physical and mechanical properties by means of ultrasonic P-wave velocity.

    Science.gov (United States)

    Concu, Giovanna; De Nicolo, Barbara; Valdes, Monica

    2014-01-01

    The aim of this study was to evaluate ultrasonic P-wave velocity as a feature for predicting some physical and mechanical properties that describe the behavior of local building limestone. To this end, both ultrasonic testing and compressive tests were carried out on several limestone specimens and statistical correlation between ultrasonic velocity and density, compressive strength, and modulus of elasticity was studied. The effectiveness of ultrasonic velocity was evaluated by regression, with the aim of observing the coefficient of determination r(2) between ultrasonic velocity and the aforementioned parameters, and the mathematical expressions of the correlations were found and discussed. The strong relations that were established between ultrasonic velocity and limestone properties indicate that these parameters can be reasonably estimated by means of this nondestructive parameter. This may be of great value in a preliminary phase of the diagnosis and inspection of stone masonry conditions, especially when the possibility of sampling material cores is reduced.

  7. The use of CTAB as an addition of DAP for improvement resisting acid rain on limestone

    Science.gov (United States)

    Xu, Feigao; Li, Dan

    2017-11-01

    The effect of hydroxyapatite (HA) formed by reacting limestone with mixture of diammonium hydrogen phosphate (DAP) and cetyltrimethylammonium bromide (CTAB) in the consolidation and protection of carbonate stones was investigated. Different concentration of CTAB was used in the experiments with mild condition in order to study how the CTAB affect the structure of HA. Moreover, the strengthening effect was evaluated with artificially limestone samples. The result of BET and XRD both showed that the structure of HA remained almost unchanged except its crystallinity was affected and specific surface area was decreased as the consequence of the addition of CTAB. A double application (as both coupling agent and consolidant) was also investigated, in which the samples were coated with DAP then followed by self-made product. The Scotch Tape test and hardness test both proved the cohesion between consolidant and limestone powder as well as its ability against acid rain were increased, which were ascribed to HA and CTAB.

  8. Elemental analysis of some West Malaysian limestones using neutron activation, delayed neutron and electron microprobe analysis

    International Nuclear Information System (INIS)

    Amin, Y.M.; Kamaluddin, B.; Mahat, R.H.

    1990-01-01

    Limestone stratigraphy in Malaysia has been and is dependent almost entirely in palaeontology. However fossil localities are sporadic and as such a new fossil discovery mean the necessity for a complete re-appraisal of the stratigraphy. The almost complete dependence upon palaeontology results from the difficulties of stratigraphy correlation of isolated outcrops, from the cover of tropical vegetation and from the often complex folding and faulting which has been imposed on the geosyn-clinical rocks by the Indonesian-Thai-Malayan orogeny. So by studying the elemental composition of limestones accurately, we would be able to correlate outcrops and other stratigraphic samples independent of fossil finds. The use of delayed neutron analysis would also determine the concentration of uranium and thorium accurately. This study, in conjunction with thermoluminescence and fission track studies, would able us to date the age of the limestones

  9. Properies of binder systems containing cement, fly ash, and limestone powder

    Directory of Open Access Journals (Sweden)

    Krittiya Kaewmanee

    2014-10-01

    Full Text Available Fly ash and limestone powder are two major widely available cement replacing materials in Thailand. However, the current utilization of these materials is still not optimized due to limited information on properties of multi-binder systems. This paper reports on the mechanical and durability properties of mixtures containing cement, fly ash, and limestone powder as single, binary, and ternary binder systems. The results showed that a single binder system consisting of only cement gave the best carbonation resistance. A binary binder system with fly ash exhibited superior performances in long-term compressive strength and many durability properties except carbonation and magnesium sulfate resistances, while early compressive strength of a binary binder system with limestone powder was excellent. The ternary binder system, taking the most benefit of selective cement replacing materials, yielded, though not the best, satisfactory performances in almost all properties. Thus, the optimization of binders can be achieved through a multi-binder system.

  10. Successful experience with limestone and other sorbents for combustion of biomass in fluid bed power boilers

    Energy Technology Data Exchange (ETDEWEB)

    Coe, D.R. [LG& E Power Systems, Inc., Irvine, CA (United States)

    1993-12-31

    This paper presents the theoretical and practical advantages of utilizing limestone and other sorbents during the combustion of various biomass fuels for the reduction of corrosion and erosion of boiler fireside tubing and refractory. Successful experiences using a small amount of limestone, dolomite, kaolin, or custom blends of aluminum and magnesium compounds in fluid bed boilers fired with biomass fuels will be discussed. Electric power boiler firing experience includes bubbling bed boilers as well as circulating fluid bed boilers in commercial service on biomass fuels. Forest sources of biomass fuels fired include wood chips, brush chips, sawmill waste wood, bark, and hog fuel. Agricultural sources of biomass fuels fired include grape vine prunings, bean straw, almond tree chips, walnut tree chips, and a variety of other agricultural waste fuels. Additionally, some urban sources of wood fuels have been commercially burned with the addition of limestone. Data presented includes qualitative and quantitative analyses of fuel, sorbent, and ash.

  11. Techniques for Source Zone and Plume Characterization of Tetrachloroethene in Fractured Limestone Aquifers

    DEFF Research Database (Denmark)

    Fjordbøge, Annika Sidelmann; Mosthaf, Klaus; Janniche, Gry S.

    Characterization of chlorinated solvents in fractured limestone aquifers is essential for proper development of site specific conceptual models and subsequent risk assessment and remediation. High resolution characterization is challenged by the difficulties involved in collection of intact core...... fractured limestone aquifers. The two sites represent different scales (source and plume) and contaminant levels (DNAPL and dissolved). The scope of the investigations was to evaluate different techniques for characterization of the contaminant distribution in the limestone aquifers and to obtain...... of the FACT field measurements, which allows the conversion of discrete activated carbon concentrations to aqueous concentrations at given hydraulic parameters and FACT parameters. The passive groundwater sampling with snap samplers resulted in significantly different concentration levels and concentration...

  12. Effects of Particle Size Distribution on the Burn Ability of Limestone

    Directory of Open Access Journals (Sweden)

    Ismaila E. SULEIMAN

    2013-11-01

    Full Text Available The effect of particle size reduction on the burn ability of Limestone was investigated using the limestone obtained from Obajana Cement Mines. Limestone samples were grinded and were classified into following particles size distribution: 90µm, 200µm, 250µm and 500µm graduated in different sieve sizes. The decomposition rates of these samples were monitored under the same temperature condition in a pre-heated furnace of 1000°C and at constant time interval of 0-35 minutes. From the results of the investigation, the material with particle size distribution of 90µm has the fastest reaction rate of 0.1369g/min and highest lime conversion of 52.0 weight percent; loss on ignition being 48 weight percent. This reaction rate increases as the particle size decreases from 500µm to 90µm.

  13. Investigations of a Cretaceous limestone with spectral induced polarization and scanning electron microscopy

    DEFF Research Database (Denmark)

    Johansson, Sara; Sparrembom, Charlotte; Fiandaca, Gianluca

    2017-01-01

    Characterization of varying bedrock properties is a common need in various contexts, ranging from large infrastructure pre-investigations to environmental protection. A direct current resistivity and time domain induced polarization (IP) survey aiming to characterize properties of a Cretaceous...... limestone was carried out in the Kristianstad basin, Sweden. The time domain IP data was processed with a recently developed method in order to suppress noise from the challenging urban setting in the survey area. The processing also enabled extraction of early decay times resulting in broader spectra......-ray spectroscopy, and the results showed that varying amounts of pyrite, glauconite and clay matrix were present at different levels in the limestone. The local high IP anomalies in the limestone could be caused by these minerals otherwise the IP responses were generally weak. There were also differences...

  14. Improvement of operational properties of shell limestone building materials by polysulfide solution impregnation

    Directory of Open Access Journals (Sweden)

    MASSALIMOV Ismail Alexandrovich

    2017-06-01

    Full Text Available The data of studies on the effectiveness of impregnation with polysulfide solutions of shell limestone used as facing and wall material, as well as for the manufacture of road products are presented. Modification of the limestone with the impregnating composition «Akvastat» created by the authors which is sulfur-containing water-based solution of calcium polysulfide containing alcohols and surfactants, can significantly reduce water absorption and increase durability of limestone. Impregnating composition on the basis of calcium polysulfide possesses density of 1.22–1.24 g/cm3, the infiltrant penetrates into the pore structure of limestone to a depth of 4 cm or more, depending on the density and structure of the sample. While the material is drying, sulfur nanoparticles are crystallized from the polysulfide solution in its pores. They partially fill pore space and form protective durable insoluble hydrophobic coating that impedes the penetration of water into the pores of the limestone, but preserves its vapor permeability, which is important for wall and decoration materials. The evaluation of protective coatings was performed with laser particle size analyzer, scanning probe microscope and a diffractometer. It showed that the average size of the particles forming the protective coating is in the range of 20–25 nm, the particles shape is spherical, the particles are elemental sulfur with orthorhombic structure of the crystal lattice. The processing of shell limestone with calcium polysulphide solution provides formation of coating based on nanosized sulfur on the surface of stone pores. The coating partially fills the pore space and, as it is hydrophobic, reduces the water absorption of the samples by a factor of 5–8, increases their average density by 22–27%, strength in 1,2–1,3 times, the softening factor by 6–19%, that makes possible to predict the increase of the durability of building materials based on shell limestone to 1

  15. Pliocene Te Aute limestones, New Zealand : expanding concepts for cool-water shelf carbonates

    International Nuclear Information System (INIS)

    Nelson, C.S.; Winefield, P.R.; Hood, S.D.; Caron, V.; Pallentin, A.; Kamp, P.J.J.

    2003-01-01

    Acceptance of a spectrum of warm- through cold-water shallow-marine carbonate facies has become of fundamental importance for correctly interpreting the origin and significance of all ancient platform limestones. Among other attributes, properties that have become a hallmark for characterising many Cenozoic non-tropical occurrences include: (1) the presence of common bryozoan and epifaunal bivalve skeletons; (2) a calcite-dominated mineralogy; (3) relatively thin deposits exhibiting low rates of sediment accumulation; (4) an overall destructive early diagenetic regime; and (5) that major porosity destruction and lithification occur mainly in response to chemical compaction of calcitic skeletons during moderate to deep burial. The Pliocene Te Aute limestones are non-tropical skeletal carbonates formed at paleolatitudes near 40-42 degrees S under the influence of commonly strong tidal flows along the margins of an actively deforming and differentially uplifting forearc basin seaway, immediately inboard of the convergent Pacific-Australian plate boundary off eastern North Island, New Zealand. This dynamic depositional and tectonic setting strongly influenced both the style and subsequent diagenetic evolution of the limestones. Some of the Te Aute limestones exhibit the above kinds of 'normal' non-tropical characteristics, but others do not. For example, many are barnacle and/or bivalve dominated, and several include attributes that at least superficially resemble properties of certain tropical carbonates. In this regard, a number of the limestones are infaunal bivalve rich and dominated by an aragonite over a calcite primary mineralogy, with consequently relatively high diagenetic potential. Individual limestone units are also often rather thick (e.g., up to 50-300 m), with accumulation rates from 0.2 to 0.5 m/ka, and locally as high as 1 m/ka. Moreover, there can be a remarkable array of diagenetic features in the limestones, involving grain alteration and

  16. Differences between silica and limestone concretes that may affect their interaction with corium

    International Nuclear Information System (INIS)

    Journeau, C.; Haquet, J. F.; Piluso, P.; Bonnet, J. M.

    2008-01-01

    Recent Molten Core Concrete Interaction tests performed at Argonne National Laboratory and at CEA Cadarache have shown that, whereas the ablation of limestone-rich concretes is almost isotropic, the ablation of silica-rich concretes is much faster towards the sides than towards the bottom of the cavity. The following differences exists between limestone-rich and silica-rich concretes: limestone concretes liberate about twice as much gas, at a given ablation rate than siliceous concretes (more than 50% more at constant heat flux) and this can affect pool hydraulics and crust stability: limestone concrete has a higher liquidus temperature than siliceous concrete and molten limestone concrete has a larger diffusion coefficient and can more easily dissolve a corium crust than siliceous melt; limestone aggregates are destroyed by de-carbonation at around 1000 K while silica aggregates melt only above 2000 K, so that floating silica aggregates can form cold spots increasing corium solidification near the interface; de-carbonation of limestone leads to a significant shrinkage of concrete melt volume compared to the cold solid that hampers the mechanical stability of overlying crusts; the chemical composition of molten mortar (sand + cement) and concrete (sand + gravel + cement) is close for limestone-rich concretes while it is different for siliceous concretes, so that the melt composition may vary significantly in case of non-simultaneous melting of the siliceous concrete constituents; molten silicates have a large viscosity, so that transport properties are different for the two types of concretes. The small range of plant concrete compositions that have been considered for MCCI experiments has not yet been found sufficient to determine which of the above-mentioned differences is paramount to explain the observed difference in ablation patterns. Separate Effect Tests using specially-designed 'artificial concretes' and prototypic corium would provide the necessary

  17. Hydration of Blended Portland Cements Containing Calcium-Aluminosilicate Glass Powder and Limestone

    DEFF Research Database (Denmark)

    Moesgaard, M; Poulsen, Søren Lundsted; Herfort, D

    2012-01-01

    M. MOESGAARD, S.L. POULSEN, D. HERFORT, M. STEENBERG, L.F. KIRKEGAARD, J. SKIBSTED, Y. YUE, Hydration of Blended Portland Cements Containing Calcium-Aluminosilicate Glass Powder and Limestone, Journal of the American Ceramic Society 95, 403 – 409 (2012).......M. MOESGAARD, S.L. POULSEN, D. HERFORT, M. STEENBERG, L.F. KIRKEGAARD, J. SKIBSTED, Y. YUE, Hydration of Blended Portland Cements Containing Calcium-Aluminosilicate Glass Powder and Limestone, Journal of the American Ceramic Society 95, 403 – 409 (2012)....

  18. Carbonate Minerals with Magnesium in Triassic Terebratula Limestone in the Term of Limestone with Magnesium Application as a Sorbent in Desulfurization of Flue Gases

    Science.gov (United States)

    Stanienda-Pilecki, Katarzyna

    2017-09-01

    This article presents the results of studies of Triassic (Muschelkalk) carbonate rock samples of the Terebratula Beds taken from the area of the Polish part of the Germanic Basin. It is the area of Opole Silesia. The rocks were studied in the term of possibility of limestone with magnesium application in desulfurization of flue gases executed in power plants. Characteristic features of especially carbonate phases including magnesium-low-Mg calcite, high-Mg calcite, dolomite and huntite were presented in the article. They were studied to show that the presence of carbonate phases with magnesium, especially high-Mg calcite makes the desulfurization process more effective. Selected rock samples were examined using a microscope with polarized, transmitted light, X-ray diffraction, microprobe measurements and FTIR spectroscopy. The results of studies show a domination of low magnesium calcite in the limestones of the Terebratula Beds. In some samples dolomite and lower amounts of high-Mg calcite occurred. Moreover, huntite was identified. The studies were very important, because carbonate phases like high-Mg calcite and huntite which occurred in rocks of the Triassic Terebratula Beds were not investigated in details by other scientists but they presence in limestone sorbent could influence the effectiveness of desulfurization process.

  19. Mobility and language change in Denmark

    DEFF Research Database (Denmark)

    Monka, Malene

    ), whereas in Tinglev, informants’ language has not changed at all. In order to explain how the language change of the non-mobile affect the language change of the mobile informants one needs qualitative analysis that gives attention not only to geographical, social and mental mobility but also to place......Mobility and language change in Denmark This paper demonstrates how mobility affects language change in real time and reports on the results of my PhD-thesis. In the thesis I made a real time panel study in three towns in distinct dialect areas in Denmark and examined language change in 23 speakers...... recorded in 1978 to 2010. The results emphasize the advantages of approaching mobility from different angles when investigating patterns of language change. The present paper focuses on six geographically and socially mobile informants. At the time of the early recordings, the three towns were in different...

  20. Addressing food waste reduction in Denmark

    DEFF Research Database (Denmark)

    Halloran, Afton Marina Szasz; Clement, Jesper; Kornum, Niels

    2014-01-01

    Global food demand is driven by population and economic growth, and urbanization. One important instrument to meet this increasing demand and to decrease the pressure on food production is to minimize food losses and food waste. Food waste and loss is a major societal, economic, nutritional...... and environmental challenge. Using the case of Denmark, this paper analyses causes of food waste, and discusses how different stakeholders address the prevention and reuse of the €1.18. billion of annual edible food waste. Currently, the majority of food waste is still incinerated with energy recovery. However......, improvements in technology have made it more efficient to utilize food waste for biogas and compost, which improves nutrient cycling through the food system. Major efforts to address food waste in Denmark have mainly been promoted through civil society groups with governmental support, as well as by industry...

  1. FM Research for Practice in Denmark

    DEFF Research Database (Denmark)

    Jensen, Per Anker

    Purpose: The purpose of this paper is to present an overview of research and development in the area of Facilities Management (FM) in Denmark. Background: Research in FM is a fairly new activity in Denmark, but there have during the 1980’s and 1990’s been a number of development activities...... environment. FM started to be developed in practice with a strong focus on benchmarking and IT systems like CAFM. Around year 2000 a number of research and development project on Whole Life Costing was carried out and around 2005 there were some development projects and publications on new offices. Digital...... handover of data from building projects to FM and Building Information Modelling also became an important field of development. Research in FM started at DTU in 2003 and got a major boost by the establishing of CFM in 2008. In recent years sustainability has emerged as a new important research area in FM...

  2. Implementing shared decision making in Denmark

    DEFF Research Database (Denmark)

    Dahl Steffensen, Karina; Hjelholt Baker, Vibe; Vinter, Mette Marianne

    2017-01-01

    national plan for cancer treatment. What about tools for patient decision support? Development of evidence-based patient decision aids (PDAs) are still at an early stage in Denmark, but recent national and private funding has helped push the field forward. Furthermore, a few stakeholders have started...... professionals have received systematic training, and there is little knowledge about implementation and sustainability of SDM in daily clinical practice. What does the future look like for SDM in Denmark? Future progress will depend on the extent to which SDM is systematically integrated in the daily routines...... of health care professionals and in patient trajectories across treatment courses. The Danish health care system needs to invest further in training and to start addressing the challenges on the organisational and system level, which affect implementation....

  3. Environmental economy account for Denmark 2000

    International Nuclear Information System (INIS)

    Anon.

    2002-01-01

    The article deals with energy consumption, emission of pollutants to the atmosphere, water consumption, and environmental taxes and subsidies in relation to the Danish National Accounts. Furthermore the article presents status of the values of the petroleum and gas reserves. The environmental-economic account for Denmark shows that the contribution to the greenhouse effect has increased with 9% while the acidification in Denmark has decreased with 45% from 1999 to 2000. This must be seen in relation to the fact that the economic activities in the same period have increased with 26%. The information presented in the environmental-economic account can be used to show so-called profiles of the consumption and production branches where a comparison is made of the branches for several areas and dimensions. Industry etc. accounts for 17% of the total employment representing 26% of the total production value, and it uses 37% of the gross energy consumption. (LN)

  4. Power and Democracy in Denmark. Conclusions

    DEFF Research Database (Denmark)

    Andersen, Jørgen Goul; Christiansen, Peter Munk; Beck Jørgensen, Torben

    In 1997, the Danish Parliament decided to launch a power study, officially An Analysis of Democracy and Power in Denmark. A steering committee consisting of five independent researchers was assigned responsibility for the project. The Steering Committee has gathered the overall conclusions from...... the numerous projects under the Power Study, and this book is a short presentation of these conclusions.The main focus of the book is the state of democracy in Denmark at the dawn of the 21st century. How has democracy fared, has the development made things better or worse, and to which extent does...... contemporary democracy live up to our democratic ideals? The answer is that in many ways democracy is doing better than we might have expected, considering the intense pressure on the nation state and the democratic institutions in the postwar period. The Danish population is still full of democratic life...

  5. Children hospitalized with Varicella in Denmark

    DEFF Research Database (Denmark)

    Helmuth, Ida Glode; Broccia, Marcella Ditte; Glenthøj, Jonathan Peter

    2017-01-01

    BACKGROUND: Varicella, common in childhood and most often self-limiting, may cause complications including bacterial superinfection, pneumonia and encephalitis. Universal childhood varicella vaccination has been introduced in several countries, but is controversial in Europe. In Denmark, varicella...... is not part of the national immunization program and there is no national surveillance of varicella. The primary aim of the study was to describe the epidemiology and clinical characteristics of children hospitalized with varicella in Denmark. The secondary aim was to validate the sensitivity and completeness...... of the Danish National Patient Register. METHODS: Active surveillance of children hospitalized with varicella was carried out at four pediatric departments. In the Danish National Patient Register we identified all children discharged with an ICD10 code of varicella from the four departments. We used a capture...

  6. Neonatal herpes in Denmark 1977-1991

    DEFF Research Database (Denmark)

    Fonnest, G; de la Fuente Fonnest, I; Weber, Tom

    1997-01-01

    BACKGROUND: To prevent neonatal herpes, women in labor with genital herpes infection are still delivered by Cesarean section. This policy is currently being debated. The aim of this study was to determine the incidence of neonatal herpes in Denmark and to evaluate the prevention practice. METHODS......: All newborns with perinatal herpes in Denmark 1977-1991 were identified from hospital-records. RESULTS: Of 862,298 deliveries 136 possible cases were found but only 30 (22%) fulfilled the criteria for neonatal herpes. The incidence increased from 2.36 to 4.56 per 100,000 live births during 1977......-1984 through 1984-1991. Three mothers (10%) had recurrent herpes at delivery, three (10%) had primary herpes, and five (17%) had oral herpes. Seven infants (23%) were delivered by Cesarean section. Nine (30%) only had cutaneous herpes, four (13%) had CNS herpes, nine (30%) had disseminated disease. Six (20...

  7. Current Challenges to Teacher Education in Denmark

    DEFF Research Database (Denmark)

    Staugaard, Hans Jørgen; Rasmussen, Palle

    students seem to fear being “locked” in the professional role as teacher and would like to have the wider range of choices – and perhaps the higher prestige - available in universities. In the paper we discuss the second of these arguments, the question of recruitment, on the basis of existing evidence......Until recently, teacher education in Denmark for primary and lower secondary school (the Folkeskole) was organised in separate teacher training colleges. During the last ten years two comprehensive reforms of the system of medium cycle higher education have been implemented, first the act....... Furthermore we will present and discuss a new model for teacher education being developed in collaboration between the Northern Denmark University College and Aalborg University....

  8. Societal costs of diabetes mellitus in Denmark

    DEFF Research Database (Denmark)

    Sortsø, C; Green, A; Jensen, Peter Bjødstrup

    2016-01-01

    AIM: To provide comprehensive real-world evidence on societal diabetes-attributable costs in Denmark. METHODS: National register data are linked on an individual level through unique central personal registration numbers in Denmark. All patients in the Danish National Diabetes Register in 2011 (N...... = 318 729) were included in this study. Complication status was defined according to data from the Danish National Hospital Register. Diabetes-attributable costs were calculated as the difference between costs of patients with diabetes and the expected costs given the annual resource consumption...... of the diabetes-free population. RESULTS: Societal costs attributable to diabetes were estimated to be at least 4.27 billion EUR in 2011, corresponding to 14,349 EUR per patient-year. A twofold higher healthcare resource usage was found for patients with diabetes as compared with the diabetes-free population...

  9. Work injuries among migrant workers in Denmark

    DEFF Research Database (Denmark)

    Biering, Karin; Lander, Flemming; Rasmussen, Kurt

    2017-01-01

    OBJECTIVES: Work migration into Denmark has increased during the recent decades, especially after the enlargement of the European Union (EU) in 2004. Whether or not migrant workers experience more work injuries than the native workforce has been debated and results are conflicting, most likely due....... Workers who had migrated recently were at even higher risk. CONCLUSIONS: We found increased risk of work injuries among migrant workers. Studying migrants in registers is a methodological challenge as some migrants are not registered, for legal or illegal reasons; thus, only a selected group is studied...... to methodological difficulties and cultural disparities. We set out to meet these challenges using population-based work injury registers, targeting a specific and representative region in Denmark. METHODS: This population-based study used data on work injuries from an emergency department (ED) and reported...

  10. Prevalence of generalized retinal dystrophy in Denmark

    DEFF Research Database (Denmark)

    Bertelsen, Mette; Jensen, Hanne; Bregnhøj, Jesper F

    2014-01-01

    of this study was to examine the prevalence and diagnostic spectrum of generalized retinal dystrophy in the Danish population. METHODS: A population-based cross-sectional study with data from the Danish Retinitis Pigmentosa Registry that comprises all patients in Denmark with generalized retinal....... RESULTS: Of the 5,602,628 Danish citizens on January 1, 2013, 1622 patients were registered as having a generalized retinal dystrophy and were alive and living in Denmark, corresponding to a prevalence of 1:3,454. In 28% of cases the eye condition was part of a syndrome, while the remaining 72% had eye...... disease only. Aside from simplex cases (45%), the most common hereditary pattern was autosomal recessive (23%). CONCLUSION: This epidemiological survey demonstrates that the prevalence of generalized retinal dystrophy in the Danish population is 1:3454. Many of the dystrophies are the subjects of clinical...

  11. Denmark's Energy Cooperation with Emerging Powers

    DEFF Research Database (Denmark)

    Martins, Bruno Oliveira; Schvartzman, Yonatan; Jørgensen, Knud Erik

    2015-01-01

    This chapter addresses the energy cooperation between Denmark and South Africa, China and other emerging economic powers. It conducts an empirical analysis departing from the theoretical concept of multi-level energy governance, inquiring the way international transactions within the realm...... in cooperation with Brussels, bringing an additional layer to the governance of this sector and blurring the boundaries between the national and the international spheres. The first section of this chapter puts the current Danish energy policies in historical context and elaborates on its main principles...... and vectors. The following section covers the international dimension of the energy policy pursued by Denmark by exploring the way it cooperates with Emerging Powers. Afterwards, the chapter addresses the role played by the EU in these dynamics, in the context of EU’s proclaimed preference for multilateral...

  12. Incidence and prevalence of epilepsy in Denmark

    DEFF Research Database (Denmark)

    Christensen, Jakob; Vestergaard, Mogens; Pedersen, Marianne G

    2007-01-01

    PURPOSE: To estimate the occurrence of epilepsy in Denmark between 1977 and 2002, taking gender, age, and secular trends into consideration. METHODS: We used the Danish Civil Registration System to identify all persons born in Denmark and the Danish National Hospital Register to identify persons...... registered with epilepsy between 1977 and 2002. RESULTS: Between 1977 and 2002 the average incidence of epilepsy was 68.8 new epilepsy patients per 100,000 person-years at risk. However, the incidence changed with calendar time and increased steeply from 1990 to 1995, probably due to changes in diagnostic...... declined from a high level in children to a low level between 20 and 40 years of age, and thereafter a gradual increase was seen. The incidence rate was slightly higher in men than in women except for the age range 10-20 years. About 2% of the population was diagnosed with epilepsy at some point during...

  13. Comparison of future energy scenarios for Denmark

    DEFF Research Database (Denmark)

    Kwon, Pil Seok; Østergaard, Poul Alberg

    2012-01-01

    sectors. The methodologies used in two academic scenarios, IDA 2050 and CEESA, are compared. The main differences in the methodologies of IDA 2050 and CEESA are found in the estimation of future biomass potential, transport demand assessment, and a trial to examine future power grid in an electrical......Scenario-making is becoming an important tool in energy policy making and energy systems analyses. This article probes into the making of scenarios for Denmark by presenting a comparison of three future scenarios which narrate 100% renewable energy system for Denmark in 2050; IDA 2050, Climate...... Commission 2050, and CEESA (Coherent Energy and Environmental System Analysis). Generally, although with minor differences, the scenarios suggest the same technological solutions for the future such as expansion of biomass usage and wind power capacity, integration of transport sector into the other energy...

  14. The Evolution of Inclusive Education in Denmark

    DEFF Research Database (Denmark)

    Engsig, Thomas Thyrring

    The notion of inclusive education in the public school system is highly debated in Denmark, and internationally. Teachers and school leaders in Denmark are struggling with identifying good inclusive practices, and there seems to be discrepancies between multiple national educational policies, which...... inform teachers and stakeholders in their understanding of inclusive education.The Danish government passed and initiated a large reform of the Danish public school system in the beginning of 2014. Among other key aspects, the reform involves a more goal-oriented school with quantifiable national goals...... that 97% of the country’s students are to receive their education in the public school’s general education by 2020. Furthermore, the so-called ‘Inclusion law’, as it is commonly called, was passed in the Danish parliament in April 2012 (Law no. 379). The main purpose of this law was to redefine the notion...

  15. Dietary patterns in Them and Copenhagen, Denmark

    DEFF Research Database (Denmark)

    Helms, P; Jørgensen, I M; Paerregaard, A

    1982-01-01

    Four-day weighing and 24-hour recall were used to record food consumption in groups of 30 men, aged 50-59 years, in 2 areas of Denmark: Them, a rural Danish community, and Copenhagen. Fat consumption was found to be higher in Them, whereas alcohol consumption was higher in Copenhagen. The absolut...... daily intake of dietary fiber was higher in Them than in Copenhagen. These observations document changes due to industrialization of food production, modern distribution, and marketing methods....

  16. Changing reference intervals for haemoglobin in Denmark

    DEFF Research Database (Denmark)

    Ryberg-Nørholt, Judith; Frederiksen, Henrik; Nybo, Mads

    2017-01-01

    ,973 males, aged 18 - 105 years) from general practitioners and community specialists of Funen, Denmark, were extracted from the laboratory information system. The prevalence of anaemia according to the new and the old RI were investigated, and additional costs were calculated based on estimated additional...... approach for establishing new RI, here particularly for Hb, should be thoroughly considered. In general, physicians should use RI with caution....

  17. The Demand for Rental Homes in Denmark

    DEFF Research Database (Denmark)

    Skak, Morten

    2007-01-01

    development, and gives some indications of the future demand for rental housing in Denmark. The results indicate a future stagnant rental demand kept up by an increasing share of persons of old age and young persons undergoing education, and thus a rising homeownership rate. It is believed that the structural...... traits found on the Danish housing market and the technique employed for prediction are of interest to housing researchers in other countries....

  18. Designing Holistic Zero Energy Homes in Denmark

    DEFF Research Database (Denmark)

    Bejder, Anne Kirkegaard; Knudstrup, Mary-Ann

    2016-01-01

    , however, designing ZEBs is still challenging. In order to gain further currency, we need to collect new knowledge and communicate it in an easy applicable way for the building industry. This paper presents the development and objectives of a publication entitled “Zero Energy Buildings – Design Principles...... is part of the Danish Strategic Research Centre for Zero Energy Buildings at Aalborg University, Denmark. Keywords: Holistic zero energy building design, architecture, design principles, cross-disciplinary design, integrated design...

  19. Climate change and agriculture in Denmark

    International Nuclear Information System (INIS)

    Olesen, J.E.

    2001-01-01

    This chapter reviews the current knowledge on effects of climate change on agriculture in Denmark, and the contribution of agriculture to greenhouse gas emissions in Denmark. The chapter also considers the possibilities of Danish agriculture to adapt to changing climate and to reduce greenhouse gas emissions. The relations to other aspects of global change are discussed, including liberalisation of world markets and changes in land use. Scenarios of climate change for Denmark suggest increases in annual mean temperature of 1 to 4 deg. C by the end of the 21st century depending on socioeconomic development. Winter rainfall may increase up to 20%. This implies a wide range of possible consequences. Agricultural productivity may be expected to increase under increasing temperature and increasing CO 2 concentration. Highter temperatures will increase the risk of pests and deseases. Warming in association with increased winter rainfall will also increase the risk of nitrate leaching. Climate change may thus be expected to reinforce the current trends in Danish agriculture of declining cattle population and increasing pig and cereal production. Apart from an anticipated continued decline in total agricultural area, land use will probably not be greatly affected. The current environmental regulation in Denmark aims at reducing pesticide use and nitrogen losses from agriculture. Some of the regulations are very detailed and directly regulate farming practices in a manner that may not provide the most cost-effective mechanism under a changed climate. Some of these existing rigid frameworks for environmental regulation should thus be substituted by more flexible goal-oriented environmental protection strategies, in order to ensure sustainability of farming under global climate change. (LN)

  20. Omnichannel Marketing. Facts & Figures. Denmark 2017

    DEFF Research Database (Denmark)

    Futtrup Kjær, Jan; Kjær Jacobsen, Christine; Bjerre Herdel, Stine

    This NBI Omnichannel Facts and Figures report highlights the central findings from the NBI Omnichannel capability benchmarking tool, based on data collected in 2015 and 2016. The insights shared here provide an understanding of the way companies and marketing departments are working to deliver on...... on - and adapt to - the challenges and opportunities related to the customer-centric, omnichannel experience. View this report as a data-freeze and analysis on the status of omnichannel in Denmark as of 2017....

  1. Religious Education research in welfare state Denmark

    DEFF Research Database (Denmark)

    Buchardt, Mette

    2017-01-01

    The article deals with forms of knowledge and types of research interests in scholarly work on Religious Education at the primary and lower secondary levels in Denmark throughout the heyday of the welfare state from the 1960s and up until the 2000s, when the welfare state model not least with reg......The article deals with forms of knowledge and types of research interests in scholarly work on Religious Education at the primary and lower secondary levels in Denmark throughout the heyday of the welfare state from the 1960s and up until the 2000s, when the welfare state model not least...... with regard to education was in transition. The point of departure is the work and oeuvre of K.E. Bugge, for many years – and remaining until now – the last professor of Religious Education in Denmark, namely at the Royal Danish School of Education (Danmarks Lærerhøjskole) which reorganized as Danish...... University of Education in 2000. The article situates his doctoral dissertation "The school for life. Studies concerning the pedagogical ideas of N. F. S. Grundtvig" (1965) in its institutional context and compares the forms of knowledge it produced with three PhD dissertations defended during the 2000s...

  2. Lithofacies and petrophysical properties of Portland Base Bed and Portland Whit Bed limestone as related to durability

    NARCIS (Netherlands)

    Dubelaar, C.W.; Engering, S.; Hees, R.P.J. van; Koch, R.; Lorenz, H.G.

    2003-01-01

    This study focuses on the differences in lithofacies and petrophysical properties of Base Bed and Whit Bed Portland limestone and the presumed relationships between these characteristics and the durability of this building stone. As Portland limestone probably will be used as a stone for several

  3. Lithofacies and Petrophysical Properties of Portland Base Bed and Portland Whit Bed Limestone as Related to Durability

    NARCIS (Netherlands)

    Dubelaar, C.W.; Engering, S.; Van Hees, R.P.J.; Koch, R.; Lorenz, H.G.

    2003-01-01

    This study focuses on the differences in lithofacies and petrophysical properties of Base Bed and Whit Bed Portland limestone and the presumed relationships between these characteristics and the durability of this building stone. As Portland limestone probably will be used as a stone for several

  4. Extensive yellow crusts below limestone overhangs: a new taxon close to a minute epiphytic lichen

    Czech Academy of Sciences Publication Activity Database

    Vondrák, Jan; Moniri, M. H.; Malíček, Jiří; Košnar, J.

    2017-01-01

    Roč. 35, č. 3 (2017), s. 368-376 ISSN 0107-055X Institutional support: RVO:67985939 Keywords : Caloplaca substerilis * limestone rocks * Central Europe Subject RIV: EF - Botanics OBOR OECD: Plant sciences, botany Impact factor: 0.847, year: 2016

  5. The effect of limestone powder, fly ash and silica fume on the ...

    Indian Academy of Sciences (India)

    Self-compacting repair mortars (SCRM) are preferred for the rehabilitation and repair of reinforced concrete structures especially at narrow mould systems. Self compactability and stability are susceptible to ternary effects of chemical and mineral admixture type and their content. In this study, the effect of limestone powder ...

  6. Influence of limestone fillers on combustion characteristics of asphalt mortar for pavements

    DEFF Research Database (Denmark)

    Ke, Wu; Kai, Zhu; Wu, Hao

    2014-01-01

    Asphalt materials will be ignited and release significant toxic fumes within tunnel fires. Thus, combustion characteristics of asphalt materials used in road tunnel should be studied in order to limit such an adverse effect. In the present work we study the influence of limestone fillers on combu...

  7. Integrated iron(II) oxidation and limestone neutralisation of acid mine water

    CSIR Research Space (South Africa)

    Maree, JP

    1999-01-01

    Full Text Available Volumetric iron (II) oxidation rates exceeding 100 g/(l.d) were achieved by dosing powdered limestone to a bio-reactor treating artificial acid mine water. Neutralisation and partial sulphate removal were achieved as well. The rate is highly...

  8. Thermal effects induced by laser ablation in non-homogeneous limestone covered by an impurity layer

    Science.gov (United States)

    Cocean, Alexandru; Pelin, Vasile; Cazacu, Marius Mihai; Cocean, Iuliana; Sandu, Ion; Gurlui, Silviu; Iacomi, Felicia

    2017-12-01

    This paper reports preliminary results concerning thermal effects induced by urban/industrial air pollutants deposited on a limestone rock when heated by pulsed laser in the cleaning process. The process of laser cleaning treatment of the crust is simulated using COMSOL Multiphysics 4.4, finite element analysis software. Scanning Electron Microscopy coupled with Energy Dispersive X-ray Spectroscopy and Laser Induced Breakdown Spectroscopy techniques have been used to analyze the chemical composition of the samples. Two elements found as being present into the dust and in the crust, such as iron and magnesium particles are used for simulation in COMSOL. Therefore, the profiles heat evolutions on the crust surface and inside limestone are obtained as thermal interactions between the three components (iron, magnesium and limestone), simulating the non-homogeneous materials. It has been observed that iron impurities caused by the dust deposition may damage the limestone through a process of overheating, as a consequence of a high thermal conduction phenomenon, recorded for the region with iron impurities and sizes of micrometric order are localized. The thermal contact between the three components results in plots that reflect their thermal interactions.

  9. Soft-sediment ichnotaxa from the Cenozoic White Limestone Group, Jamaica, West Indies

    NARCIS (Netherlands)

    Blissett, D.J.; Pickerill, R.K.

    2004-01-01

    Jamaica, the third largest of the Greater Antillean islands, exposes various lithological units that are dominated by Cenozoic carbonate rocks including those of the mid-Cenozoic White Limestone Group. This Group is comprised of six formations, the Troy, Swanswick, Somerset, Moneague, Montpelier and

  10. Piedramuelle Limestone in the building heritage of Oviedo, Spain, and adjacent towns.

    Science.gov (United States)

    Cardenes Van den Eynde, Victor; Mateos, Felix Javier; Valdeon, Luis; Rojo, Araceli

    2017-04-01

    The Piedramuelle limestone has a very important representation in the building heritage of Oviedo, historical capital of Asturias (Spain) and surrounding towns. This argillaceous limestone has been quarried since the High Middle Ages until the beginning of the XX century. The main mineralogical components are carbonates (mainly calcite and sometimes ankerite, 70-90%), quartz (5-15%), terrigenous minerals (6-15%) and iron oxides (building heritage mainly for ornamental details, while the coarse-grained one is found in the bigger blocks and ashlars of the buildings. Some of the buildings constructed with Piedramuelle limestone are the Cathedral, the Old University and the Palaces from the XVII and XVIII centuries. The ambiance and historical architecture of Oviedo and adjacent towns is closely linked with the textures and colors of this stone. Nowadays, the Piedramuelle limestone is not exploited anymore, being the quarries exhausted. This represents an issue from a conservation point of view, since there is not a suitable stone for replacement. In order to preserve and maintain the building heritage of these towns, it is very important to prospect and protect the remaining outcrops still able to supply this characteristic stone.

  11. Data for moisture measurements during vertical absorption in building porous materials such as brick and limestone.

    Science.gov (United States)

    Evangelides, Chris; Arampatzis, George

    2018-04-01

    This article contains the datasets obtained from experiments in laboratory related to moisture propagation in building porous materials. The datasets contain moisture measurements and corresponding time measurements during vertical infiltration experiment in brick and limestone samples. Moisture measurements were carried out using a γ-ray device and water volume absorption was recorded by a computer controlled digital scale.

  12. The application of rock mass classification systems to limestone mine in Korea

    Science.gov (United States)

    Kim, G.; Baek, H.; Kim, D.; Kang, S.; Kang, J.

    2011-12-01

    Rock mass classification procedure is an important part in solving most rock engineering problem. Well known rock mass classification systems include the rock mass rating (RMR) and the Q-system. These systems have been applied for various works, mostly in civil engineering applications rather than mining purposes. To assess the stability of the mine openings in underground limestone mines, RMR and Q values were estimated from 142 locations of 7 underground mine sites in Korea. Unsupported span derived from the estimated RMR and Q values were compared to measured mine opening span. The results showed that the span derived from RMR was more conservative than those from Q values. This difference might have been resulted from different parameters which each classification system uses, and also their sensitivity to the rock behaviors. Although the both rock mass classification systems have been modified and improved continuously, the results vary with site conditions. The critical span curves proposed by Lang(2001), often called as the Mathews' stability graph method, are used to calculate the unsupported span. These curves were modified for underground limestone mines in Korea. It has led to a reasonable conclusion for assessing the stability of wide underground openings in six limestone mines. Nevertheless, additional research seems to be necessary for other mine sites. The database should be required for calculating the unsupported span. To obtain more data, in ten mine sites the survey was conducted. It will be contributed to Limestone Mine Site Characterization Model(LSCM) for Korea.

  13. Environmentally acceptable effect of hydrogen peroxide on cave "lamp-flora", calcite speleothems and limestones.

    Science.gov (United States)

    Faimon, Jirí; Stelcl, Jindrich; Kubesová, Svatava; Zimák, Jirí

    2003-01-01

    Mosses, algae, and cyanobacteria (lamp-flora) colonize illuminated areas in show caves. This biota is commonly removed by a sodium hypochlorite solution. Because chlorine and other deleterious compounds are released into a cave environment during lamp-flora cleansing, hydrogen peroxide was tested as an alternative agent. In a multidisciplinary study conducted in the Kateinská Cave (Moravian Karst, Czech Republic), 12 algae- and cyanobacteria taxons and 19 moss taxons were detected. The threshold hydrogen peroxide concentration for the destruction of this lamp-flora was found to be 15 vol.%. Based on laboratory experiments in stirred batch reactors, the dissolution rates of limestones and calcite speleothems in water were determined as 3.77 x 10-3 and 1.81 x 10-3 mol m-2 h-1, respectively. In the 15% peroxide solution, the limestone and speleothem dissolution rates were one order of magnitude higher, 2.00 x 10-2 and 2.21 x 10-2 mol m-2 h-1, respectively. So, the peroxide solution was recognised to attack carbonates somewhat more aggressively than karst water. In order to prevent the potential corrosion of limestone and speleothems, the reaching of preliminary peroxide saturation with respect to calcite is recommended, for example, by adding of few limestone fragments into the solution at least 10 h prior to its application.

  14. Use of limestone obtained from waste of the mussel cannery industry for the production of mortars

    International Nuclear Information System (INIS)

    Ballester, Paloma; Marmol, Isabel; Morales, Julian; Sanchez, Luis

    2007-01-01

    Various types of cement-SiO 2 -CaCO 3 mortar were prepared by replacing quarry limestone aggregate with limestone obtained as a by-product from waste of the mussel cannery industry. The CaCO 3 aggregate consists mainly of elongated prismatic particles less than 4 μm long rather than of the rounded particles of smaller size (2-6 μm) obtained with quarry limestone. The mechanical and structural properties of the mortars were found to be influenced by aggregate morphology. Setting of the different types of mortar after variable curing times was evaluated by scanning electron microscopy (SEM), thermogravimetric analysis (TG) and mercury intrusion porosimetry (MIP) techniques. Mortars with a high content in mussel shell limestone exhibited a more packed microstructure, which facilitates setting of cement and results in improved mortar strength. The enhanced mechanical properties of the new mortars allow the cement content in the final mortar composition to be decreased and production costs to be reduced as a result

  15. The Quilon Limestone (Kerala Basin/India) - an archive for Miocene Indo-Pacific seagrass beds

    Science.gov (United States)

    Piller, Werner E.; Reuter, Markus; Harzhauser, Mathias; Kroh, Andreas; Rögl, Fred; Coric, Stjepan

    2010-05-01

    The Quilon Formation of the Kerala Basin (SW India) is characterized by carbonate rocks which belong to the Warkalli Group and are interbedded between siliciclastic formations. It comprises at least 2 horizons of fossiliferous limestone with marine fauna. The lower limestone horizon is characterized by colonial corals, while the upper horizon represents a larger foraminiferal Pseudotaberina malabarica facies which is well developed at the type locality, the coastal cliffs of Ashtamudi Lake at Padappakkara in SW India. The sediment there is either a weakly cemented carbonate sand rich in foraminifers and gastropods or a fossiliferous limestone. Facies and faunal composition clearly indicate a seagrass environment. Recent seagrasses have their centre of generic richness in the Indo-Pacific where they cover wide areas in the tidal and shallow subtidal zones. However, their geological record is only fragmentary and their palaeobiogeographic record has a big gap in the Western Indo-Pacific region. The newly reported nannoplankton flora and planktonic foraminifers from the Quilon Formation demonstrate that the deposition of the studied seagrass bed occurred in nannoplankton biozone NN3. This timing suggests a formation during the closure of the Tethyan Seaway. It designates the Quilon Limestone as an early Western Indo-Pacific seagrass bed and documents an important step in the history of seagrass communities. The large discoidal soritid foraminifer Pseudotaberina malabarica is considered as proxy for Miocene seagrass communities in the Indo-Pacific region.

  16. Effects of limestone petrography and calcite microstructure on OPC clinker raw meals burnability

    Science.gov (United States)

    Galimberti, Matteo; Marinoni, Nicoletta; Della Porta, Giovanna; Marchi, Maurizio; Dapiaggi, Monica

    2017-10-01

    Limestone represents the main raw material for ordinary Portland cement clinker production. In this study eight natural limestones from different geological environments were chosen to prepare raw meals for clinker manufacturing, aiming to define a parameter controlling the burnability. First, limestones were characterized by X-Ray Fluorescence, X-Ray Powder Diffraction and Optical Microscopy to assess their suitability for clinker production and their petrographic features. The average domains size and the microstrain of calcite were also determined by X-Ray Powder Diffraction line profile analysis. Then, each limestone was admixed with clay minerals to achieve the adequate chemical composition for clinker production. Raw meals were thermally threated at seven different temperatures, from 1000 to 1450 °C, to evaluate their behaviour on heating by ex situ X-Ray Powder Diffraction and to observe the final clinker morphology by Scanning Electron Microscopy. Results indicate the calcite microstrain is a reliable parameter to predict the burnability of the raw meals, in terms of calcium silicates growth and lime consumption. In particular, mixtures prepared starting from high-strained calcite exhibit a better burnability. Later, when the melt appears this correlation vanishes; however differences in the early burnability still reflect on the final clinker composition and texture.

  17. Radiological significance of Egyptian limestone and alabaster used for construction of dwellings

    International Nuclear Information System (INIS)

    El-Taher, A.; Makhluf, V.

    2011-01-01

    The natural radionuclides in limestone and alabaster found in Assuit Governorate in Upper Egypt have been investigated by passive gamma-ray spectrometry. From the measured γ-ray spectra, specific activities were determined. The measured activity concentrations for these natural radionuclides were compared with the reported data from other countries. The radiation hazard parameters related to the exposure of limestone and alabaster have also been calculated. The obtained results of radium equivalent Raeq, level index Iγr, the external hazard index H ex and absorbed dose rate in limestone (90.44, 0.63, 0.17, 39.94) and (70.86, 0.50, 0.13, 31.55) are lower than the acceptable level 370 Bqkg -1 for radium equivalent Ra eq , 1 for level index Iγr, the external hazard index H e≤ I and 59 (nGy.h -1 ) for absorbed dose rate. So limestone and alabaster can be used as building construction without exceeding the proposed radioactivity criterion level. (author)

  18. 230Th/234U dating of coral limestones and vertical uplift at Djibouti

    International Nuclear Information System (INIS)

    Faure, Hugues; Hoang, C.T.; Lalou, Claude

    1980-01-01

    Coral limestones sampled from marine terraces along the Afar coast have been dated by the 230 Th/ 234 U method. The ages confirm the stratigraphic unity of these formations and the existence of the paleo sea level dated 124 000 years ago in this region. These results permit to deduce the uplift rates of this littoral [fr

  19. Effects of addition of adipic acid to a limestone-gypsum FGD installation

    Energy Technology Data Exchange (ETDEWEB)

    Middlekamp, J.; Broek, S.; Kock, A.F.J.M. [KEMA, Arnhem (Netherlands)

    1995-08-01

    Addition of organic buffers such as adipic acid to the scrubber liquor of limestone-sludge Flue Gas Desulphurization (FGD) installations is common practice in the USA. Major effects are an increased SO{sub 2} removal efficiency, better limestone utilization and improved operational performance of the FGD installations. For application of these organic buffers under Western European conditions, where lime stone-gypsum FGD systems are installed for desulphurization, the impact of these compounds on both the gypsum quality and the performance of the wastewater treatment systems is an important issue. From research work on pilot-plant scale performed at the laboratories of KEMA on behalf of the Dutch Electricity Production Companies, the addition of organic buffers also showed positive effects on the limestone-gypsum process. Adipic acid was found to be the most promising additive. At Hoogovens Technical Services (HTS E&E) adipic acid was considered to be a good additive in limestone-gypsum FGD installation of the 600 MWe coal fired Amer-9 power station of the Production Company EPZ was carried out to establish the following items: effect on SO{sub 2} absorption; effect on net power consumption of the FGD installation; influence on the gypsum quality; influence on the wastewater quality and performance of the wastewater treatment system; influence on process control of the FGD installation; loss of adipic acid through chemical degradation and wastewater discharge. This paper describes the highlights of this program. 4 refs., 1 fig., 2 tabs.

  20. Fossil non-calcareous Algae from insoluble residues of algal limestones

    NARCIS (Netherlands)

    Meijer, de J.J.

    1969-01-01

    Dissolution of algal limestones in a 1-10% HCL solution delivers flocks of well preserved non-calcareous algae and sometimes some other plant remains as well. Non-calcareous algae of Cambrian, Carboniferous, Jurassic and Paleogene age were obtained in this manner. Slides of these fossils together

  1. Attrition of limestones by impact loading in fluidized beds: The influence of reaction conditions

    Energy Technology Data Exchange (ETDEWEB)

    Scala, Fabrizio [Istituto di Ricerche sulla Combustione, Consiglio Nazionale delle Ricerche, Napoli (Italy); Salatino, Piero [Istituto di Ricerche sulla Combustione, Consiglio Nazionale delle Ricerche, Napoli (Italy); Dipartimento di Ingegneria Chimica, Universita degli Studi di Napoli Federico II, Napoli (Italy)

    2010-09-15

    The extent of attrition associated with impact loading was studied for five different limestones pre-processed in fluidized bed under different reaction conditions. The experimental procedure was based on the measurement of the amount and the particle size distribution of the debris generated upon impact of sorbent samples against a target at velocities between 10 and 45 m/s. The effect of calcination, sulfation and calcination/re-carbonation on impact damage was assessed. Fragmentation by impact loading of the limestones was significant and increased with the impact velocity. Lime samples displayed the largest propensity to undergo impact damage, followed by sulfated, re-carbonated and raw limestones. Fragmentation of the sulfated samples followed a pattern typical of the failure of brittle materials. On the other hand, the behaviour of lime samples better conformed to a disintegration failure mode, with extensive generation of very fine fragments. Raw limestone and re-carbonated lime samples followed either of the two patterns depending on the sorbent nature. The extent of particle fragmentation increased after multiple impacts, but the incremental amount of fragments generated upon one impact decreased with the number of successive impacts. (author)

  2. Treatment Of Metal-Mine Effluents By Limestone Neutralization And Calcite Co-Precipitation

    Science.gov (United States)

    The U.S. Geological Survey - Leetown Science Center and the Colorado School of Mines have developed a remediation process for the treatment of metals in circumneutral mining influenced waters. The process involves treatment with a pulsed limestone bed (PLB) system, followed by c...

  3. Treatment Of Metal-Mine Effluents By Limestone Neutralization And Calcite Co-Precipitation (Presentation)

    Science.gov (United States)

    The U.S. Geological Survey - Leetown Science Center and the Colorado School of Mines have developed a remediation process for the treatment of metals in circumneutral mining influenced waters. The process involves treatment with a pulsed limestone bed (PLB) system, followed by c...

  4. Limestone cliff - face and cave use by wild ring-tailed lemurs ( Lemur ...

    African Journals Online (AJOL)

    Ring - tailed lemurs live in a range of habitats in southwestern Madagascar. To date, much of the knowledge of ring - tailed lemur ecology, biology and behavior come from riverine gallery forests sites. Recent years have seen an expansion of comprehensive research on this resilient species, including areas of limestone ...

  5. Hydrobiogeochemical interactions in 'anoxic' limestone drains for neutralization of acidic mine drainage

    Science.gov (United States)

    Robbins, E.I.; Cravotta, C.A.; Savela, C.E.; Nord, G.L.

    1999-01-01

    Processes affecting neutralization of acidic coal mine drainage were evaluated within 'anoxic' limestone drains (ALDs). Influents had pH???3.5 and dissolved oxygen treatment step is indicated to promote Al removal before diverting acidic mine water into alkalinity-producing materials. ?? 1998 Elsevier Science Ltd.

  6. Transient Catalytic Activity of Calcined Dolomitic Limestone in a Fluidized Bed during Gasification of Woody Biomass.

    Czech Academy of Sciences Publication Activity Database

    Pohořelý, Michael; Jeremiáš, Michal; Skoblia, S.; Beňo, Z.; Šyc, Michal; Svoboda, Karel

    2016-01-01

    Roč. 30, č. 5 (2016), s. 4065-4071 ISSN 0887-0624 R&D Projects: GA ČR GC14-09692J Institutional support: RVO:67985858 Keywords : fluidized- bed gasification * woody biomass * limestone Subject RIV: CI - Industrial Chemistry, Chemical Engineering Impact factor: 3.091, year: 2016

  7. Limestone neutralisation of arsenic-rich effluent from a gold mine

    CSIR Research Space (South Africa)

    De Beer, Morris

    2008-03-01

    Full Text Available of limestone treatment is 45.8% less than that of lime. The acidity can be removed from 33.5 to 0.06 g/L (as CaCO3). The study also showed no significant differences in the TCLP characteristics of the resultant sludge when water is treated with lime...

  8. Brachiopods from the Upper Triassic reef habitats of the Northern Calcareous Alps (Dachstein Limestone, Hochschwab, Austria)

    Czech Academy of Sciences Publication Activity Database

    Siblík, Miloš; Bryda, G.

    2005-01-01

    Roč. 111, č. 3 (2005), s. 411-435 ISSN 0035-6883 R&D Projects: GA ČR(CZ) GA205/03/1123 Institutional research plan: CEZ:AV0Z3013912 Keywords : Brachiopods * Upper Triassic * Dachstein Limestone Subject RIV: EG - Zoology Impact factor: 0.569, year: 2005

  9. Performance Monitoring: Evaluating an Organic Carbon-Limestone PRB for Treatment of Heavy Metals and Acidity

    Science.gov (United States)

    Since 2004, researchers from the U.S. EPA National Risk Management Research Laboratory (NRMRL) have annually evaluated performance of an organic carbon-limestone permeable reactive barrier (PRB) system installed in 2003 by EPA Region 6 at the Delatte Metals Superfund site in Ponc...

  10. Decomposition and reduction of N2O over Limestone under FBC Conditions

    DEFF Research Database (Denmark)

    Johnsson, Jan Erik; Jensen, Anker; Vaaben, Rikke

    1997-01-01

    The addition of limestone for sulfur retention in FBC has in many cases been observed to influence the emission of N2O. The catalytic activity of N2O over calcined Stevns Chalk for decomposition of N2O in a laboratory fixed bed quartz reactor was measured. It was found that calcined Stevns Chalk ...

  11. Biological iron(II) oxidation as pre-treatment to limestone neutralisation of acid water

    CSIR Research Space (South Africa)

    Maree, JP

    1998-01-01

    Full Text Available Iron (II) should be oxidised to iron (III) before the neutralisation of acid water with limestone, otherwise the oxidation will occur downstream of the neutralisation plant with the formation of acid (reactions 1 and 2). This study aimed...

  12. Effect of Limestone Powder on Acid Attack Characteristics of Cement Pastes

    Directory of Open Access Journals (Sweden)

    Shuhua LIU

    2014-12-01

    Full Text Available The acid resistance of cement pastes containing limestone powder with two different water-binder (w/b ratios exposed to acetic (pH = 4 and sulfuric acid (pH = 2 solutions respectively were investigated in this paper. Limestone powder, fly ash and silica fume were also added to the cement paste mixture at different proportions. Static and flowing aqueous environments were set in this experiment. Strength and microstructure of the pastes after acid attack were investigated by using strength test, X-ray diffractometer (XRD and scanning electron microscopy (SEM. The experimental results show that the erosion degree depends not only on pH value of the solution and w/b ratio of the pastes, but also on the content of limestone powder. Acetic acid reacts with calcium hydroxide and carbonate thus dissolving the pastes, while sulfuric acid consumed calcium hydroxide, and generated gypsum and ettringite. The consumption of calcium hydroxide in the flowing solution group is higher than that in the static solution because the flowing sulfuric acid solution has negative effect upon the gypsum crystallization. Fly ash and silica fume are beneficial to limestone cement paste because of the less calcium hydroxide formation, which is among the hydrates vulnerable to acid erosion. DOI: http://dx.doi.org/10.5755/j01.ms.20.4.6231

  13. Limestone and Zeolite as Alternative Media in Horizontal Subsurface Flow Constructed Wetlands: Laboratory-Scale Studies

    Science.gov (United States)

    Lizama, K.; Jaque, I.; Ayala, J.

    2016-12-01

    Arsenic is well known for its chronic toxicity. Millions of people around the world are currently at risk, drinking water with As concentrations above 10 ppb, the WHO drinking water guideline. Although different treatment options exist, they are often limited by elevated costs and maintenance requirements. Constructed wetlands are a natural water treatment system, capable to remove metals and metalloids -including As- via different physical, chemical and biological processes. The use of alternative supporting media to enhance As removal in subsurface flow wetlands has been recommended, but not sufficiently studied. Limestone and zeolite have been identified as effective supporting media in subsurface flow wetlands aiming As removal. However, there are still key aspects to be addressed, such as the implications of using these media, the speciation in the solid phase, the role of vegetation, etc. This study investigated the performance of limestone and zeolite in three types of experiments: batch, column and as main supporting media in a bench scale horizontal subsurface flow wetland system. Synthetic water resembling a contaminated river in Chile (As concentration=3 mg/L, Fe concentration= 100 mg/L, pH=2) was used in all experiments. In the batch experiments, the As concentration, the mass of media and the contact time were varied. The column system consisted of three limestone columns and three zeolite columns, operated under a hydraulic loading of 20 mm/d. The wetland system consisted of twelve PVC cells: six filled with zeolite and six with limestone. Phragmites australis were planted in three cells of each media type, as control cells. From the batch experiments, maximum As sorption capacities as indicated by Langmuir model were 1.3 mg/g for limestone and 0.17 mg/g for zeolite, at 18 h contact time and 6.3 g/L medium concentration. EDS and XPS analyses revealed that As and Fe were retained in zeolite at the end of the batch experiments. Zeolite and limestone

  14. Laboratory studies of Miocene limestone for the use of construction industry in Sri Lanka

    Science.gov (United States)

    de Silva Jayawardena, Upali

    2016-04-01

    Geologically ten percent of Sri Lanka is made up of Miocene limestone which covers northern and north-western coastal belt of the Island. It is used as a raw material for various industries but only cement and lime are being used for the construction industry. Except its chemical composition there is no available literature to study about other properties. Therefore the author carried out a series of laboratory tests to find out the mechanical properties of limestone in Sri Lanka. The objective of this paper is to make a note on the various properties of Miocene limestone and describe its suitability to use as an aggregate for the construction industry in Sri Lanka. Borehole samples (NX size) of limestone were obtained from various drilling sites in Northern Province of Sri Lanka and selected samples were prepared for different laboratory tests after visual observations. The tests were carried out according to ASTM Standards at the geotechnical and materials testing laboratories. The number of samples per each test was different. The range (and average result) for each property can be mentioned here as bulk density 2213-2643 (2452) kg/m3, water absorption 2.2-4.5 (1.91)%, porosity 1-15 (6.5)%, specific gravity 2.58-2.68(2.62), ultrasonic pulse velocity P wave 4480-6338 (5668) m/s and S wave 2688-3802 (3400) m/s, uniaxial compressive strength 11-92 (35)MPa, point load strength 1.2-7.1 (3.7)MPa, aggregate impact value, AIV 25-30 (28)%, LAAV 35-38 (36)%, and Brazilian tensile strength 2.1-4.4 (3.2)MPa. Poisson's ratio 0.12-0.68 (0.22) and modulus of elasticity 42-85 (62) GPa were obtained by using P and S ultrasonic wave velocity values. According to LAAV and AIV this limestone may be suitable as the base course material for road construction but may not be suitable for surface material of highways and rail road ballasts. Ultrasonic velocity waves indicate that limestone is highly compacted and solid. According to the compressive strength of solid limestone rock a few

  15. Investigations of a Cretaceous limestone with spectral induced polarization and scanning electron microscopy

    Science.gov (United States)

    Johansson, Sara; Sparrenbom, Charlotte; Fiandaca, Gianluca; Lindskog, Anders; Olsson, Per-Ivar; Dahlin, Torleif; Rosqvist, Håkan

    2017-02-01

    Characterization of varying bedrock properties is a common need in various contexts, ranging from large infrastructure pre-investigations to environmental protection. A direct current resistivity and time domain induced polarization (IP) survey aiming to characterize properties of a Cretaceous limestone was carried out in the Kristianstad basin, Sweden. The time domain IP data was processed with a recently developed method in order to suppress noise from the challenging urban setting in the survey area. The processing also enabled extraction of early decay times resulting in broader spectra of the time decays and inversion for Cole-Cole parameters. The aims of this study is to investigate if large-scale geoelectrical variations as well as small-scale structural and compositional variations exist within the Kristianstad limestone, and to evaluate the usefulness of Cole-Cole inverted IP data in early time ranges for bedrock characterization. The inverted sections showed variations within the limestone that could be caused by variations in texture and composition. Samples from a deep drilling in the Kristianstad basin were investigated with scanning electron microscopy and energy dispersive X-ray spectroscopy, and the results showed that varying amounts of pyrite, glauconite and clay matrix were present at different levels in the limestone. The local high IP anomalies in the limestone could be caused by these minerals otherwise the IP responses were generally weak. There were also differences in the texture of the limestone at different levels, governed by fossil shapes and composition, proportions of calcareous cement and matrix as well as amount of silicate grains. Textural variations may have implications on the variation in Cole-Cole relaxation time and frequency factor. However, more research is needed in order to directly connect microgeometrical properties in limestone to spectral IP responses. The results from this study show that it is possible to recover

  16. Comparison of Limestone and Ground Fish for Treatment of Nutritional Rickets in Children in Nigeria.

    Science.gov (United States)

    Thacher, Tom D; Bommersbach, Tanner J; Pettifor, John M; Isichei, Christian O; Fischer, Philip R

    2015-07-01

    To determine whether children with calcium-deficiency rickets respond better to treatment with calcium as limestone or as ground fish. Nigerian children with active rickets (n = 96) were randomized to receive calcium as powdered limestone (920 mg of elemental calcium) or ground fish (952 mg of elemental calcium) daily for 24 weeks. Radiographic healing was defined as achieving a score of 1.5 or less on a 10-point scale. The median (range) age of enrolled children was 35 (6-151) months. Of the 88 children who completed the study, 29 (66%) in the ground fish group and 24 (55%) in the limestone group achieved the primary outcome of a radiographic score of 1.5 or less within 6 months (P = .39). The mean radiographic score improved from 6.2 ± 2.4 to 1.8 ± 2.2 in the ground fish group and from 6.3 ± 2.2 to 2.1 ± 2.4 in the limestone group (P = .68 for group comparison). In an intention to treat analysis adjusted for baseline radiographic score, age, milk calcium intake, and serum 25-hydroxyvitamin D concentration, the response to treatment did not differ between the 2 groups (P = .39). Younger age was associated with more complete radiographic healing in the adjusted model (aOR 0.74 [95% CI 0.57-0.92]). After 24 weeks of treatment, serum alkaline phosphatase had decreased, calcium and 25-hydroxyvitamin D increased, and bone mineral density increased in both groups, without significant differences between treatment groups. In children with calcium-deficiency rickets, treatment with calcium as either ground fish or limestone for 6 months healed rickets in the majority of children. Copyright © 2015 The Authors. Published by Elsevier Inc. All rights reserved.

  17. Low-Temperature Curing Strength Enhancement in Cement-Based Materials Containing Limestone Powder.

    Science.gov (United States)

    Bentz, Dale P; Stutzman, Paul E; Zunino, Franco

    2017-06-01

    With the ongoing sustainability movement, the incorporation of limestone powder in cementitious binders for concrete in the U.S. has become a subject of renewed interest. In addition to accelerating the early age hydration reactions of cementitious systems by providing additional surfaces for nucleation and growth of products, limestone powder is also intriguing based on its influence on low-temperature curing. For example, previous results have indicated that the utilization of limestone powder to replace one quarter of the fly ash in a high volume fly ash mixture (40 % to 60 % cement replacement) produces a reduction in the apparent activation energy for setting for temperatures below 25 °C. In the present study, the relationship between heat release and compressive strength of mortars at batching/curing temperatures of 10 °C and 23 °C is investigated. For Portland-limestone cements (PLC) with limestone additions on the order of 10 %, a higher strength per unit heat release is obtained after only 7 d of curing in lime water. Surprisingly, in some cases, the absolute strength of these mortar cubes measured at 7 d is higher when cured at 10 °C than at 23 °C. Solubilities vs. temperature, reaction stoichiometries and enthalpies, and projected phase distributions based on thermodynamic modeling for the cementitious phases are examined to provide some theoretical insight into this strength enhancement. For a subset of the investigated cements, thermogravimetric analysis (TGA), quantitative X-ray diffraction (XRD), and scanning electron microscopy (SEM) are conducted on 7-d paste specimens produced at the two temperatures to examine differences in their reaction rates and the phases produced. The strength enhancement observed in the PLC cements is related to the cement hydration products formed in the presence of carbonates as a function of temperature.

  18. Epidemiology of alcoholic liver disease in Denmark 2006-2011

    DEFF Research Database (Denmark)

    Deleuran, Thomas; Vilstrup, Hendrik; Becker, Ulrik

    2015-01-01

    AIMS: To describe incidence, prevalence, hospitalization rates and survival for alcoholic liver disease (ALD) in Denmark 2006-2011. METHODS: Using nationwide healthcare registries we identified all Danish residents with a hospital diagnosis of ALD and computed standardized incidence, prevalence....... CONCLUSION: In Denmark, persons born in 1950-1959 have had the highest age-specific incidence. The overall ALD incidence has been decreasing (along with per capita consumption). Despite increases in affordability during the study period, Denmark did not experience the increase in ALD seen, for example......, in the UK. It is possible that this is due to the greater impact of government recommendations on safer drinking in Denmark than the UK....

  19. GPR Use and Activities in Denmark

    Science.gov (United States)

    Ringgaard, Jørgen; Wisén, Roger

    2014-05-01

    Academic work on GPR in Denmark is performed both by the Technical University of Denmark (DTU) and the University of Copenhagen (KU). The work at DTU includes development of antennas and systems, e.g. an airborne ice-sounder GPR system (POLARIS) that today is in frequent use for monitoring of ice thickness in Greenland. DTU often collaborates with ESA (European Space Agency) regarding electromagnetic development projects. At KU there is an ongoing work with GPR applied to water resources. The main objective is to study flux of water and matter across different hydrological domains. There are several recent publications from KU describing research for data analysis and modelling as well as hydro geophysical applications. Also the Geological Survey of Denmark and Greenland (GEUS) performs frequent geological mapping with GPR. There have been mainly two actors on the Danish commercial market for several years: FalkGeo and Ramboll. Falkgeo has been active for many years acquiring data for several different applications such as archeology, utilities and roads. Their equipment pool comprises both a multichannel Terravision system form GSSI and a 2D system from Mala Geoscience with a comprehensive range of antennas. Ramboll has performed GPR surveys for two decades mainly with 2D systems from GSSI. In recent years Ramboll has also obtained a system with RTA antennas from Mala Geoscience and a multichannel system from 3D-Radar. These systems have opened markets both for deeper geological mapping and for shallow mapping. The geological mapping with the Mala system has often been combined with resistivity imaging (CVES) and refraction seismic. The 3D system has been applied in airports and on road for mapping of layer thicknesses, delamination and for control of asphalt works. Other areas comprise bridge deck evaluation and utility mapping. Ramboll also acts as client advisor for BaneDanmark, a state owned company who operates and develops the Danish state railway network

  20. Generation of organic waste from institutions in Denmark: case study of the Technical University of Denmark

    DEFF Research Database (Denmark)

    Edjabou, Maklawe Essonanawe; Boldrin, Alessio; Scheutz, Charlotte

    generation and composition are required. The overall aim of this study was to quantify the potential for source-segregated organic waste as well as mixed waste from institution. This study was carried at the Department of Environmental Engineering at Technical University of Denmark. In the course...

  1. Groundwater monitoring of an open-pit limestone quarry: groundwater characteristics, evolution and their connections to rock slopes.

    Science.gov (United States)

    Eang, Khy Eam; Igarashi, Toshifumi; Fujinaga, Ryota; Kondo, Megumi; Tabelin, Carlito Baltazar

    2018-03-06

    Groundwater flow and its geochemical evolution in mines are important not only in the study of contaminant migration but also in the effective planning of excavation. The effects of groundwater on the stability of rock slopes and other mine constructions especially in limestone quarries are crucial because calcite, the major mineral component of limestone, is moderately soluble in water. In this study, evolution of groundwater in a limestone quarry located in Chichibu city was monitored to understand the geochemical processes occurring within the rock strata of the quarry and changes in the chemistry of groundwater, which suggests zones of deformations that may affect the stability of rock slopes. There are three distinct geological formations in the quarry: limestone layer, interbedded layer of limestone and slaty greenstone, and slaty greenstone layer as basement rock. Although the hydrochemical facies of all groundwater samples were Ca-HCO 3 type water, changes in the geochemical properties of groundwater from the three geological formations were observed. In particular, significant changes in the chemical properties of several groundwater samples along the interbedded layer were observed, which could be attributed to the mixing of groundwater from the limestone and slaty greenstone layers. On the rainy day, the concentrations of Ca 2+ and HCO 3 - in the groundwater fluctuated notably, and the groundwater flowing along the interbedded layer was dominated by groundwater from the limestone layer. These suggest that groundwater along the interbedded layer may affect the stability of rock slopes.

  2. Calcium levels and limestone particle size in the diet of commercial layers at the end of the first production cycle

    Directory of Open Access Journals (Sweden)

    K Pelicia

    2009-06-01

    Full Text Available This study evaluated the effect of dietary calcium levels and limestone particle size distribution on first-cycle layer performance and egg quality. A completely randomized experimental design in 4x3 factorial arrangement (four Ca levels - 3.0, 3.5, 4.0, 4.5%; and three limestone particle size distributions - 100% fine, 50% fine and 50% coarse, 30% fine and 70% coarse was applied, totaling 12 treatments with six replicates of eight birds each. The treatments did not influence the most of evaluated performance and internal and external egg quality parameters. However, limestone particle size distribution quadratically affected with percentage of defective eggs, with the lowest percentage obtained with the distribution 61.75% fine limestone and 38.25% coarse limestone. Increasing dietary Ca levels significantly increased eggshell weight per surface area and the percentage of Ca excreted in the feces. It was concluded that the combination of the highest dietary Ca level (4.5% with 50% replacement of fine-particle limestone by coarse limestone results in better eggshell and increases the number of marketable eggs.

  3. Improved survival after rectal cancer in Denmark

    DEFF Research Database (Denmark)

    Bülow, S; Harling, H; Iversen, L H

    2010-01-01

    Objective In 1995, an analysis showed an inferior prognosis after rectal cancer in Denmark compared with the other Scandinavian countries. The Danish Colorectal Cancer Group (DCCG) was established with the aim of improving the prognosis, and in this study we present a survival analysis of patients...... treated from 1994 to 2006. Method The study was based on the National Rectal Cancer Registry and the National Colorectal Cancer Database, supplemented with data from the Central Population Registry. The analysis included actuarial overall and relative survival. Results A total of 10 632 patients were...

  4. The true incidence of cryptorchidism in Denmark

    DEFF Research Database (Denmark)

    Cortes, Dina; Kjellberg, Emma M; Breddam, Mette

    2008-01-01

    at Glostrup University Hospital during 2002, with a 4-year review of patient data and telephone contact with primary physicians. Results: At birth the overall frequency of cryptorchidism was 2.4% (26 of 1,088 cases, 23% bilateral). The frequency of cryptorchidism in singletons was 2.4% (24 of 1,012 patients...... testes. Conclusions: In a small cohort of newborns the incidence of cryptorchidism in Denmark has not changed, and is similar to previous reports from the 1950s. The risk is higher in low birth weight singleton neonates but does not appear to be higher in twins, despite lower birth weight and prematurity...

  5. Epidemiology of acute vertebral osteomyelitis in Denmark

    DEFF Research Database (Denmark)

    Krogsgaard, M R; Wagn, P; Bengtsson, J

    1998-01-01

    We studied the epidemiology of acute, non-tuberculous, hematogenous vertebral osteomyelitis in Denmark during 1978-1982. 137 patients fulfilled the criteria for acute vertebral osteomyelitis. The incidence was 5/mill/year. There were no cases in the age group 20-29 years. The highest incidence......-1993, the relative number of reported patients with vertebral osteomyelitis had increased in the age group 20-49 years, compared to 1978-1982, but the incidence was highest in the group aged 60-79 years....

  6. Comparing teacher roles in Denmark and England

    DEFF Research Database (Denmark)

    Kelly, Peter; Dorf, Hans; Pratt, Nick

    2014-01-01

    was the ease with which competent English teachers moved between roles. The English teachers observed adopted roles consistent with a wider techno-rationalist discourse. There was a greater subject emphasis by Danish teachers, whose work was set predominantly within a democratic humanist discourse, whilst...... the English teachers placed a greater emphasis on applied skills.......This article reports the findings of a comparative study of teaching in Denmark and England. Its broader aim is to help develop an approach for comparing pedagogy. Lesson observations and interviews identified the range of goals towards which teachers in each country worked and the actions...

  7. Molecular tracing of VHS in Denmark

    DEFF Research Database (Denmark)

    Mikkelsen, Susie Sommer; Schuetze, H.; Korsholm, H.

    2015-01-01

    and scenario-simulation models to identify important factors for the spread of disease and to develop and evaluate new control strategies. Viral haemorrhagic septicaemia Virus (VHSV) is one of the most important viral fish diseases and is widely spread all over Europe and creates significant losses every year...... in Denmark and to look into the spread of the disease over a historical period as well as the effectiveness of containment and eradication programmes. Molecular tracing shows that the numerous VHS outbreaks in marine fish farms were due to stocking these with VHS infected rainbow trout in the incubation...

  8. Coming to terms with English in Denmark

    DEFF Research Database (Denmark)

    Thøgersen, Jacob Martin

    2010-01-01

    to terms with that. Most striking is the great uniformity in the discourses through which English is constructed on the one hand as the default language of the world, on the other as a sign of modernity. An important by-product of the investigation is that it reveals how attitudes are constructed in situ......This paper presents an investigation of Danes' attitudes towards English through qualitative interviews. Denmark, like most other countries in the so-called Western world, is under significant linguistic and cultural influence from (American) English. In this paper, I analyse how Danes come...

  9. Energy in Denmark 1990-2005

    International Nuclear Information System (INIS)

    1976-09-01

    Denmarks energy situation is investigated. It is shown that it is possible to reduce the rate of growth of energy comsumption from a historic rate of 3-5 % per year to under 1.5 % per year within the next fifthteen years, and that this can be done without harm to the general economic development. It is said that on the contrary, a reduced growth in energy comsumption would be of considerable advantage to the economy also with regard to ensuring supplies and protecting the environment (B.P.)

  10. Post Millennium Urban Space Design in Denmark

    DEFF Research Database (Denmark)

    Kiib, Hans

    agendas on Public Space Design in the period up to the development of these 100 projects. This provide interesting patterns related to the goals and the means of well known European projects. The patterns show a clear movement from classic design inspired form Southern European cities to a more context......: Urban design, open urban spaces, architecture, post millennium design.......Hans Kiib Post Millennium Urban Space Design in Denmark - a survey on 100 Danish projects from 2002 – 2010. This article is based on an evaluation of 100 Danish open space projects form 2000 – 2010. The projects was initially proposals from Danish municipalities for the Campaign on Better Open...

  11. Multicultural Upper Secondary School Life in Denmark

    DEFF Research Database (Denmark)

    Mørck, Yvonne

    2007-01-01

    Education has played an important role in the development of the Nordic welfare states. As in other European countries, present day Denmark wrestles with the problem of finding ways to handle the increased diversity of its population in terms of, for instance, ethnicity, religion and language...... secondary school as a micro-sociological laboratory of the multicultural processes and developments taking place in society at large. It is recommended to reflect upon and implement different strategies that could support a ‘citizenship education' which is needed in order to advance the cohesion...

  12. Fusarium head blight of cereals in Denmark

    DEFF Research Database (Denmark)

    Kærgaard Nielsen, Linda; Jensen, Jens Due; Nielsen, Ghita Cordsen

    2011-01-01

    Quantitative real-time polymerase chain reaction differentiating 10 Fusarium spp. and Microdochium nivale or M. majus was applied to a total of 396 grain samples of wheat, barley, triticale, oat, and rye sampled across Denmark from 2003 to 2007, along with selected samples of wheat and barley from...... 1957 to 2000, to determine incidence and abundance of individual Fusarium spp. The mycotoxins deoxynivalenol (DON), nivalenol, zearalenone, T-2, and HT-2 were quantified using liquid chromatography–double mass spectrometry. Major differences in the Fusarium species complex among the five cereals....... Biomass and mycotoxin data exhibited good correlations between Fusarium spp. and their corresponding mycotoxins under field conditions....

  13. Adoption of Precision farming in Denmark

    DEFF Research Database (Denmark)

    Pedersen, Søren Marcus; Fountas, S.; Blackmore, S.

    2003-01-01

    to demonstrate continuous yield improvements from Variable Rate Technology applications. The cost of gathering information, time consumption and incompatibility are barriers to adoption. Given teh uncertainty due to temporal variability, real time canopy management with N-sensors and weed detection is suggested......The adoption of precision farming (PF)in Denmark has been studied through two mail surveys, personal interviews and focus groups with farmers and other stakeholders. Farmers are in general optimistic about PF but it is difficult to verify the economic and environmental gains. It has been difficult...

  14. Substantial increase in listeriosis, Denmark 2009

    DEFF Research Database (Denmark)

    Jensen, Anne Kvistholm; Ethelberg, S; Smith, B

    2010-01-01

    In 2009, 97 cases of listeriosis were reported in Denmark (1.8 per 100,000), a significant rise over the previous year. The increase was seen both in cases of bacteraemia and meningitis and affected mainly people aged 70 years and older. A foodborne outbreak of eight cases was identified by pulsed......-field gel electrophoresis typing. No explanation has so far been found for the marked increase in incidence. An increasing trend has been observed since 2003 and possible explanations are discussed....

  15. Source attribution of human campylobacteriosis in Denmark

    DEFF Research Database (Denmark)

    Boysen, Louise; Rosenquist, Hanne; Rosenquist, J. T.

    2014-01-01

    This study assesses the contribution of different sources of human campylobacteriosis in Denmark using two different source-attribution approaches. In total, 794 non-human isolates and 406 isolates from human cases (domestic, travel related, and cases with unknown travel history) were collected....... The Asymmetric Island model attributed 52% [95% credibility interval (CrI) 37-67] to Danish chicken, 17% (95% CrI 3-33) to imported chicken, and 17% (95% CrI 7-28) to cattle. Similarly, the Campylobacter source-attribution model apportioned 38% (95% CrI 28-47) to Danish chicken, 14% (95% CrI 10-18) to imported...

  16. Epidemiology of cerebral palsy in Southern Denmark

    DEFF Research Database (Denmark)

    Frøslev-Friis, Christina; Dunkhase-Heinl, Ulrike; Andersen, Johnny Dohn Holmgren

    2015-01-01

    INTRODUCTION: The aim of this study was to describe the prevalence, subtypes, severity and neuroimaging findings of cerebral palsy (CP) in a cohort of children born in Southern Denmark. Risk factors were analysed and aetiology considered. METHODS: A population-based cohort study covering 17...... prevention of CP is possible if the numbers of preterm births and multiple pregnancies can be reduced. FUNDING: The Danish Cerebral Palsy Follow-up Programme is supported by the foundation "Ludvig og Sara Elsass Fond". TRIAL REGISTRATION: 2008-58-0034....

  17. Registers of multiple sclerosis in Denmark

    DEFF Research Database (Denmark)

    Koch-Henriksen, N; Magyari, M; Laursen, B

    2015-01-01

    There are two nationwide population-based registers for multiple sclerosis (MS) in Denmark. The oldest register is The Danish Multiple Sclerosis Registry (DMSR), which is an epidemiological register for estimation of prevalence and incidence of MS and survival, and for identifying exposures earlier...... between a number of different environmental exposures in the past and the subsequent risk of MS. Some of these studies have been able to exonerate suspected risk factors. The other register, the nationwide Danish Multiple Sclerosis Treatment Register, is a follow-up register for all patients who have...

  18. Control of food irradiation in Denmark

    International Nuclear Information System (INIS)

    Leth, T.

    1996-01-01

    In Denmark food irradiation is not allowed. However, with the consideration within EEC about directives regulating food irradiation and the development of methods for detection, it has been found necessary to ascertain that illegally irradiated foods are not found on the Danish market. Irradiation of spices is allowed in many countries even without being declared in the foods. It thus seemed logical to begin the control of food irradiation by screening a number of spices. This resulted in 1992 in the assessment of 105 samples and in 1993 of 48 samples. (author)

  19. Anoctamin 5 muscular dystrophy in Denmark

    DEFF Research Database (Denmark)

    Witting, Nanna; Duno, Morten; Petri, Helle

    2013-01-01

    Since the initial description in 2010 of anoctamin 5 deficiency as a cause of muscular dystrophy, a handful of papers have described this disease in cases of mixed populations. We report the first large regional study and present data on new aspects of prevalence, muscular and cardiac phenotypic...... mutations caused 11 % of our total cohort of LGMD2 cases making it the second most common LGMD2 etiology in Denmark. Eight patients complained of dysphagia and 3 dated symptoms of onset in childhood. Cardiac examinations revealed increased frequency of premature ventricular contractions. Four novel putative...

  20. Legal requirements governing proxy voting in Denmark

    DEFF Research Database (Denmark)

    Werlauff, Erik

    2008-01-01

    The requirements in Danish company law concerning proxy voting in companies whose shares have been accepted for listing on a regulated market have been successively tightened in recent years, and corporate governance principles have also led to the introduction of several requirements concerning...... proxy holders. A thorough knowledge of these requirements is important not only for the listed companies but also for their advisers and investors in Denmark and abroad. This article considers these requirements as well as the additional requirements which will derive from Directive 2007...

  1. Country policy profile - Denmark. December 2015

    International Nuclear Information System (INIS)

    2015-12-01

    In Denmark, electricity from renewable sources is promoted through a premium tariff and net-metering. Furthermore, loan guarantees are provided for local initiatives for the construction of wind energy plants. Small scale installations for renewable electricity generation that are categorised as strategically important receive support through subsidies. RES for heating are supported through exemption of various taxes that apply for fossil fuels for heating (carbon dioxide taxes supply, import and production of fossil fuels for heating purposes). Biogas is further supported by a direct premium tariff. RES for transport are generally supported through a quota system. bio-fuels for transport profit from tax incentives (RES LEGAL Europe, 2014)

  2. Copenhagen is hot, Denmark is not

    DEFF Research Database (Denmark)

    Csaba, Fabian; Stöber, Birgit

    This paper discusses the practice of ranking linked to the issue of place branding focusing on two cases from Denmark, one the national level, the other on the local level, namely the city of Copenhagen. Rankings of places have increased, and – as we shall argue – so have their influence...... on identity negotiation and public policy. Drawing on experiences with rankings in other fields (corporate reputation and higher education) and critical work on polling, we examine their growing influence, unanticipated consequences and claims to represent places and people. We analyze how media and various...

  3. Design and performance of limestone drains to increase pH and remove metals from acidic mine drainage, Chapter 2

    Science.gov (United States)

    Cravotta,, Charles A.; Watzlaf, George R.

    2002-01-01

    Data on the construction characteristics and the composition of influent and effluent at 13 underground, limestone-filled drains in Pennsylvania and Maryland are reported to evaluate the design and performance of limestone drains for the attenuation of acidity and dissolved metals in acidic mine drainage. On the basis of the initial mass of limestone, dimensions of the drains, and average flow rates, the initial porosity and average detention time for each drain were computed. Calculated porosity ranged from 0.12 to 0.50 with corresponding detention times at average flow from 1.3 to 33 h. The effectiveness of treatment was dependent on influent chemistry, detention time, and limestone purity. At two sites where influent contained elevated dissolved Al (>5 mg/liter), drain performance declined rapidly; elsewhere the drains consistently produced near-neutral effluent, even when influent contained small concentrations of dissolved Fe^+ (ion flux normalized by initial mass and purity of limestone at each of the drains ranged from 0.008 to 0.079 year-1. Data for alkalinity concentration and flux during 11-day closed-container tests using an initial mass of 4kg crushed limestone and a solution volume of 2.3 liter yielded dissolution rate constants that were comparable to these long-term field rates. An analytical method is proposed using closed-container test data to evaluate long-term performance (longevity) or to estimate the mass of limestone needed for a limestone treatment. This method condisers flow rate, influent alkalinity, steady-state alkalinity of effluent, and desired effluent alkalinity or detention time at a future time(s) and aplies first-order rate laws for limestone dissolution (continuous) and production of alkalinity (bounded).

  4. Lithofacies palaeogeography and biostratigraphy of the lowermost horizons of the Middle Triassic Hallstatt Limestones (Argolis Peninsula, Greece

    Directory of Open Access Journals (Sweden)

    Fotini A. Pomoni

    2013-07-01

    Taking into consideration the present location of the Hallstatt Formation, in the context of the Hellenides, an area suitable for the deposition of the Hallstatt Limestones, should be located between the sub-Pelagonian (western part of the Pelagonian zone and Pindos geotectonic zones, which during the Triassic corresponded to a platform slope and a deep ocean, respectively. The widespread Middle Triassic Han Bulog Limestones (ammonoid-bearing pelagic limestones from Triassic successions of the Eastern Alps (Dinarides, Hellenides may have formed partly in similar slope environments.

  5. Epidemiology of tuberculosis in HIV-infected patients in Denmark

    DEFF Research Database (Denmark)

    Dragsted, Ulrik Bak; Bauer, J; Poulsen, S

    1999-01-01

    Denmark is an area of low incidence of HIV and tuberculosis (TB). The number of newly reported cases of HIV has been stable during the 1990s, whereas the number of TB cases has doubled in Denmark in the past decade, mainly due to immigration. However, among native Danes the incidence of TB has...

  6. "Fortid", "Nutid", "Fremtid" (Past, Present, Future): Professional Counseling in Denmark

    Science.gov (United States)

    Dixon, Andrea L.; Hansen, Nanja Holland

    2010-01-01

    In this article, the authors offer a comprehensive overview of the counseling profession in Denmark. The history and development of counseling is considered, followed by a review of the current state of Danish professional counseling. Finally, impressions of the future of professional counseling in Denmark are presented based on the past and…

  7. The vocational education and training system in Denmark

    DEFF Research Database (Denmark)

    Cort, Pia; Wiborg, Susanne

    2009-01-01

    Analysis of developments in vocational education and training systems in Australia, Canada, Denmark, France, Germany, Korea, Mexico, Morocco, the UK and the US.......Analysis of developments in vocational education and training systems in Australia, Canada, Denmark, France, Germany, Korea, Mexico, Morocco, the UK and the US....

  8. Towards fully renewable energy systems - Experience and trends in Denmark

    DEFF Research Database (Denmark)

    Pinson, Pierre; Mitridati, Lesia Marie-Jeanne Mariane; Ordoudis, Christos

    2017-01-01

    .g., wind and solar. Denmark is a country that invested early in wind energy, rapidly proposing very ambitious goals for the future of its energy system and global energy usage. While the case of Denmark is specific due to its limited size and good interconnections, there may still be a lot to learn from...

  9. Drug-related mortality in Denmark 1970-93

    DEFF Research Database (Denmark)

    Juel, K; Helweg-Larsen, K

    1999-01-01

    We analysed drug-related mortality in Denmark with respect to secular trends, gender, and regional variations, for the period 1970-93, for all deaths from poisoning and among drug addicts. The study was based on the Register of Causes of Death in Denmark and included 6,229 drug-related deaths...

  10. Treatment of cervical intraepithelial neoplasia in Denmark 1991 to 2007

    DEFF Research Database (Denmark)

    Barken, Sidsel Svennekjær

    2010-01-01

    Abstract: Objectives: The number of invasive cervical cancers peaked in Denmark in 1966 with 963 cases. Cervical cancer is prevented by treatment of screen-detected cervical intraepithelial neoplasia (CIN). We assessed the trend in CIN treatments in Denmark. Material and Methods: From highly...

  11. IA of bio-economic projects in Region Zealand, Denmark

    DEFF Research Database (Denmark)

    Lybæk, Rikke; Kjær, Tyge; Palsberg, Aske

    Creating new pathways for sustainable ready-to-implement bio-economic projects within Region Zealand, Denmark, based on available biomass resources and existing and proven technology concepts.......Creating new pathways for sustainable ready-to-implement bio-economic projects within Region Zealand, Denmark, based on available biomass resources and existing and proven technology concepts....

  12. The effects of 10 years Railway investment in Denmark

    DEFF Research Database (Denmark)

    Hansen, Sten A.

    1998-01-01

    The paper retrives the impacts of the last 10 years of investment in railway infrastructure in Denmark and ooncludes, that traveltimes and frequency is large unchanged during that period.......The paper retrives the impacts of the last 10 years of investment in railway infrastructure in Denmark and ooncludes, that traveltimes and frequency is large unchanged during that period....

  13. Once Upon a Time, in the Enchanted Kingdom of Denmark

    DEFF Research Database (Denmark)

    Chemi, Tatiana

    Some definitions about creativity and innovation, drawn from the terms’ etymology and a report on a difficult quest. On the emerging field of arts-in-business in Denmark.......Some definitions about creativity and innovation, drawn from the terms’ etymology and a report on a difficult quest. On the emerging field of arts-in-business in Denmark....

  14. Recent Developments of Wave Energy Utilization in Denmark

    DEFF Research Database (Denmark)

    Kofoed, Jens Peter; Frigaard, Peter; Kramer, Morten

    2006-01-01

    This paper aims at giving an overview of the developments researchers at the Department of Civil Engineering, Aalborg University, Denmark (DCE), have been involved in within the field of wave energy utilization in Denmark over the past decade. At first a general introduction is given followed by ...

  15. Environmental radioactivity in Denmark in 1986

    International Nuclear Information System (INIS)

    Aarkrog, A.; Boetter-Jensen, L.; Chen Qing Jiang; Dahlgaard, H.; Hansen, H.; Holm, E.; Lauridsen, B.; Nielsen, S.P.; Soegaard-Hansen, J.

    1988-11-01

    Strontium-90, radiocesium and other radionuclides were determined in samples from all over the country of air, precipitation, stream water, lake water, ground water, drinking water, sea water, soil, sediments, dried milk, fresh milk, meat, fish, chese, eggs, grain, bread, potatoes, vegetables, fruit, grass, moss, lichen, sea plants, total diet, and humans. Estimates of the mean contents of radiostrontium and radiocesium in the human diet in Denmark during 1986 are given. Tritium was determined in precipitation, ground water, other fresh waters and sea water. The gamma-background was measured regularly by TLD, ionization chamber and on site gamma-spectroscopy at locations around Risoe, at ten of the State experimental farms, along the coasts of the Great Belt and around Gylling Naes. The marine environments at Barsebaeck and Ringhals were monitored for 137Cs and corrosion products (58Co, 60Co, 65Zn, 54Mn). The Chernobyl accident caused a substantial expansion of the environmental monitoring activities in Denmark. The programme was expanded to an extent similar to that in the sixties. (author) 178 tabs., 70 ills., 34 refs

  16. Source attribution of human campylobacteriosis in Denmark.

    Science.gov (United States)

    Boysen, L; Rosenquist, H; Larsson, J T; Nielsen, E M; Sørensen, G; Nordentoft, S; Hald, T

    2014-08-01

    SUMMARY This study assesses the contribution of different sources of human campylobacteriosis in Denmark using two different source-attribution approaches. In total, 794 non-human isolates and 406 isolates from human cases (domestic, travel related, and cases with unknown travel history) were collected. Isolates were characterized by multilocus sequence typing, flaA typing and susceptibility to antibiotics. Both models used indicate that the major burden of human campylobacteriosis in Denmark originates from the domestic broiler chicken reservoir. The second most important reservoir was found to be cattle. The Asymmetric Island model attributed 52% [95% credibility interval (CrI) 37-67] to Danish chicken, 17% (95% CrI 3-33) to imported chicken, and 17% (95% CrI 7-28) to cattle. Similarly, the Campylobacter source-attribution model apportioned 38% (95% CrI 28-47) to Danish chicken, 14% (95% CrI 10-18) to imported chicken, and 16% (95% CrI 7-25) to cattle. The addition of flaA type as an extra discriminatory typing parameter did not change the attribution of cases markedly.

  17. Fault architecture and growth in clay-limestone alternations: insights from field observations in the SE Basin, France

    International Nuclear Information System (INIS)

    Rocher, M.; Roche, V.; Homberg, C.

    2012-01-01

    Document available in extended abstract form only. The Callovo-Oxfordian (COX) clayey formation is currently studied by Andra in 'Meuse/Haute- Marne' (MHM), eastern Paris basin (France), for hosting a disposal of high level and intermediate, long-lived radioactive waste. As an independent organisation performing safety reviews for the Nuclear Safety Authority, IRSN conducts studies in support of the review of this disposal project. This nearly 130 m-thick clayey formation is surrounded by two 250 m-thick limestone formations. In such limestone/clay alternations, tectonic fracturing is often observed within limestones and propagates in some cases to clay layers. Such a propagation through the COX within or close to the disposal area could diminish its containment ability by creating preferential pathways of radioactive solute towards limestones. Nevertheless, minor to moderate fracturing is difficult to investigate in hectometre scale multilayer systems such as COX: seismic reflexion surveys only provide data on major faults, drilling data are too localised and clays have a 'bad-land' aspect at surface. The aim of this study is to provide a model of fracturing across clay-limestone alternations so as to strengthen the assessment of their possible development. We thus investigated fracturing within decametre-sized clay-limestone alternations, located in the South-Eastern Basin (France), to determine the evolution of fault architecture during its growth. After analysis of the possible scale effects using data from other analogous fields, an application to the COX in MHM is presented. We studied minor normal faults that reflect various stages of development, from simple fault planes restricted to limestones to complex fault zones propagated across several clay-limestone layers. The analysis of the fault characteristics, the construction of displacement profiles and the results obtained using numerical models enlighten fault growth processes, i.e. nucleation

  18. High Resolution Hydraulic Profiling and Groundwater Sampling using FLUTe™ System in a Fractured Limestone Setting

    DEFF Research Database (Denmark)

    Janniche, Gry Sander; Christensen, Anders G.; Grosen, Bernt

    aqui-fer/bedrock. A wide range of innovative and current site investigative tools for direct and indirect docu-mentation and/or evaluation of dense non-aqueous phase liquid (DNAPL) presence were combined in a multiple lines of evidence approach. One scope of the investigations was to evaluate...... innovative investi-gation methods for characterization of the source zone hydrogeology and contamination, including FLUTe system hydraulic profiling and Water-FLUTe multilevel groundwater sampling, in fractured bryo-zoan limestone bedrock. High resolution hydraulic profiling was conducted in three cored......-FLUTes for multilevel groundwater monitoring, sampling (under two flow conditions) and analysis. Coring for discrete subsampling was a challenge in the limestone, due to core-loss and potential DNAPL loss caused by high drilling water pressure. Hence, the water-FLUTe data proved to be an essential link in the source...

  19. Soil-gas diffusivity fingerprints of the dual porosity system in fractured limestone

    DEFF Research Database (Denmark)

    Claes, Niels; Chamindu, D.T.K.K.; Jensen, Jacob Birk

    2010-01-01

    processes are mostly limited to hydrogeological (water and solute) transport studies with very poor attention to the gaseous phase transport studies (Kristensen et al. 2010). This study characterizes fractured limestone soils for gas diffusion based on three different gas diffusivity fingerprints. The first...... fingerprint is a two-parameter exponential model, which mainly describes the gas diffusivity in the limestone matrix while taking both fracture connectivity and matrix pore connectivity into account. With the second fingerprint, we make a close observation of the tortuous matrix pore network by means...... of a modified Buckingham (1904) pore connectivity factor (X*). The third fingerprint of the fracture network involves the average angle of diffusion α (Moldrup et al. 2010), a parameter which characterizes the average angle at which the fractures are penetrating the sample....

  20. Intermediate-scale sodium-concrete reaction tests with basalt and limestone concrete

    International Nuclear Information System (INIS)

    Hassberger, J.A.; Muhlestein, L.D.

    1981-01-01

    Ten tests were performed to investigate the chemical reactions and rate and extent of attack between sodium and basalt and limestone concretes. Test temperatures ranged from 510 to 870 0 C (950 to 1600 0 F) and test times from 2 to 24 hours. Sodium hydroxide was added to some of the tests to assess the impact of a sodium hydroxide-aided reaction on the overall penetration characteristics. Data suggest that the sodium penetration of concrete surfaces is limited. Penetration of basalt concrete in the presence of sodium hydroxide is shown to be less severe than attack by the metallic sodium alone. Presence of sodium hydroxide changes the characteristics of sodium penetration of limestone concrete, but no major differences in bulk penetration were observed as compared to penetration by metallic sodium