730 research outputs found
Op eieren lopen? De grillige dynamiek van de maatschappelijke aandacht voor innovatieve veehouderijsystemen in kaart gebracht
No full textDe intensieve veehouderij is geregeld onderwerp van heftige discussies in de Nederlandse samenleving. In het debat rondom de intensieve veehouderij spelen vele waarden, opvattingen en feiten. Veel burgers geven bijvoorbeeld aan dat ze dierenwelzijn en duurzaamheid belangrijk vinden en weren intensieve veehouderijen uit hun achtertuin. Tegelijkertijd stellen consumenten het belang van goedkoop voedsel voorop, en gaan boeren in de eerste plaats voor rendabiliteit. De beleidsmakers, tot slot, proberen de verschillen die er bestaan tussen burger, boer en consument te overbruggen. Tegen deze achtergrond wordt gezocht naar duurzame, diervriendelijke houderijsystemen die rendabiliteit en maatschappelijk draagvlak weten te combineren. Het Rondeel is een voorbeeld van een dergelijk duurzaam houderijsysteem
Report of change of status and address, W.D., A.G.O. form no. 641, Minoru Frank Saito
No full textA copy of a "report of change of status and address, W.D., A.G.O. form" submitted to War Department by Minoru Frank Saito. He added his sister Joyce Teruko Saito as his dependent. Due to lack of her birth certificate, he was not able to include her as his dependent when he applied for it
Application for dependency benefits (servicemen's dependents allowance act of 1942), W.D., A.G.O. Form no. 625., Minoru Frank Saito
No full textAn applicant's copy of an "application for dependency benefits (servicemen's dependents allowance act of 1942), W.D., A.G.O. Form no. 625" form submitted to War Department by Minoru Frank Saito. His mother, Kiku Saito, who has been incarcerated in the Granada camp, is listed as his dependent
America's other Muslims: Imam W.D. Mohammed, Islamic reform, and the making of American Islam Black diasporic worlds./ Muhammad Fraser-Rahim.
No full textIncludes bibliographical references (pages 111-125) and index.Fraser-Rahim spotlights the emergence of an American school of Islamic thought, which was created and established by the son of the former Nation of Islam leader. W.D. Mohammed rejected his father's teachings and embraced normative Islam on his own terms while balancing classical Islam and his lived experience of Islam in the diaspora.Intro -- Contents -- Acknowledgments -- Preface -- Introduction -- 1. African American Islam in context -- 2. Taffakur ("to think, ponder, reflect"): Islam in West Africa and Islamic revivalism -- 3. Africanizing Dixie: the enslaved African Muslim experience and the Black American Islamic continuum -- 4. Imam W.D. Mohammed, the patron saint of American Islam: personality, intellectual teachings, and reformation -- 5. Walking with Brother Imam: the community of W.D. Mohammed as a counterweight to extremism -- Conclusion -- Glossary of terms -- Bibliography -- Index -- About the author.1 online resource (148 pages
Reynolds number dependence of the dimensionless dissipation rate in stationary magnetohydrodynamic turbulence
No full textResults on the Reynolds number dependence of the dimensionless total dissipation rate C_ε are presented, obtained from medium to high resolution direct numerical simulations (DNSs) of mechanically forced stationary homogeneous magnetohydrodynamic (MHD) turbulence in the absence of a mean magnetic field, showing that C_ε -> const with increasing Reynolds number. Furthermore, a model equation for the Reynolds number dependence of the dimensionless dissipation rate is derived from the real-space energy balance equation by asymptotic expansion in terms of Reynolds number of the second- and third-order correlation functions of the Elsässer fields z± = u ± b. At large Reynolds numbers we find that a model of the form C_ε = C_ε,∞ + C/R describes the data well, while at lower Reynolds numbers the model needs to be extended to second order in 1/R in order to obtain a good fit to the data, where R is a generalised Reynolds number with respect to the Elsässer field z-
A review of morphological studies and models relevant for the Wadden Sea
No full textThis review presents brief summaries of a number of reports and mathematical models known to the author which may be relevant for short-term and long-term morphological developments of the Wadden Sea. It certainly is not a complete list of literature on this subject but it may guide other investigators working on this subject.Hydraulic EngineeringCivil Engineering and Geoscience
Erosion-corrosion resistance of engineering materials in various test conditions
No full textErosion–corrosion is a complex phenomenon which involves the interaction between the mechanical processes of solid particle erosion and the electrochemical processes of corrosion. A whole range of issues is faced by a designer when trying to obtain relevant information on erosion–corrosion performance of a material. Amongst the constraints are the dispersed test conditions and test rigs available in the literature making comparisons and quantifying erosion–corrosion wear rates of different materials very difficult. The aim of this work is to evaluate the repeatability of erosion–corrosion experiments and to investigate the role of different parameters influencing erosion–corrosion. The materials tested in this work are stainless steel (SS316L/UNS S31603), carbon steel (AISI 1020/UNS G10200) and nickel-aluminium bronze (NAB/UNS C63200). A slurry pot erosion tester was used as the test apparatus and test parameters such as erodent size, erodent concentration, flow velocity and test solutions were varied to study their effect on erosion–corrosion. SEM analysis showed that a similar erosion–corrosion mechanism is seen for SS316L and NAB with formation of multiple extruded lips and platelets typically seen for erosion dominated material. In contrast the surface of AISI 1020 revealed the formation of craters, pits and shallow indentations which suggests that corrosion mechanism has a dominant influence on the material. Error rates in tests were found to have an average of 5.5% which are relatively low indicating good repeatability of test measurements and data from the test rig. The erosion–corrosion resistance of AISI 1020, SS316L and NAB were compared and it was found that SS316L showed the lowest erosion–corrosion mass loss rates in all test conditions followed by NAB and then AISI 1020. However in terms of synergistic ranking, NAB showed the best resistance to the combined action of erosion and corrosion with the highest negative synergy value. Positive synergy was evident for AISI 1020 in 3.5% NaCl and SS316L in 0.3 M HCl. A wear map is presented to evaluate erosion–corrosion trends of the materials. This work combines the assessment of test repeatability, variation in test conditions and comparison of material performance which are key stages in a material selection process
Podium: interview Maarten van der Vlist : Topspecialist adaptief watermanagement Rijkswaterstaat
No full textThe forward-looking capacity of local governments. An assessment of investment plans in municipal water infrastructure
No full textThe governance challenge of addressing grand challenges with current-day decisions in water infrastructure
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