16,845 research outputs found
Improvement of digestibility of feather meal using microbial keratinase purified from the hog-hair bacteria
No full textMicroencapsulated formulation of antagonistic bacteria with chitinolytic activity and application in fungal disease control
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Active control of gear vibration using specially configured sensors and actuators
No full textThis paper describes an active control system for reducing the vibration of a pair of meshing gears caused by the variation of meshing stiffness. A gear meshing model is developed and used to determine the magnitude of the secondary force required to cancel gear vibration and this is shown to be related to the modulation index of meshing stiffness. Possible configurations of actuators and sensors to implement the control scheme are proposed and some experimental results are presented
Slowing of intestinal glucose absorption by metformin is not related to the timing of its administration
No full textM.J. Borg, C. Xie, C. Chen, W. Huang, K. Jones, M. Horowitz, C. Rayner, T. W
Analysis of kefir and kefir grains microflora using denaturing gradient gel electrophoresis
No full textPhortica (Ashima) afoliolata Chen & Toda 2005
No full text1) Phortica (Ashima) afoliolata Chen & Toda, 2005 (Fig. 3H) Phortica afoliolata Chen & Toda in Chen et al., 2005b: 421. Phortica (Ashima) afoliolata: Chen & Máca, 2012: 507. Diagnosis. Aedeagal sheath ventro-apically with a pair of strongly sclerotized postgonites much shorter than bifurcated pieces of aedeagal median rod (Fig. 3H); aedeagus with free sclerite within outer membrane (ch.59-1; Fig. 3H). Supplementary description. Supracervical setae 18–20. Dorsomedial, tentorial apodeme slightly longer than 1/2 basal, parallel portion of dorsolateral, tentorial apodeme. Arista with arb (dorsal/ventral branches of arista) = 7–9/4–7. Palpus with hollow-shaped sense organ. Cibarial, medial sensilla 7–8 per side; posterior sensilla 6–7 per side. All tarsi entirely yellow. Specimens examined. China: 1♂ paratype, 4♂, Jianfeng, Ledong County, Hainan, 21.ix.1993, M.J. Toda leg. (SEHU); 1♂, ditto, except 22.ix.1993 (SEHU); 5♂ paratypes, ditto, except 25.ix.1993 (SEHU). Myanmar: 1♂ paratype, Yangon, 14.i.1982, M.J. Toda leg. (SEHU). Laos: 2♂, near Vang Vieng, 27.vii.2009, H. Bänziger leg. (SEHU). Distribution. China (Yunnan, Hainan), Myanmar, Laos *. * New record.Published as part of Toda, Masanori J., Bänziger, Hans, Sati, Pradeep C., Fartyal, Rajendra S., Suwito, Awit & Katoh, Toru, 2020, Taxonomy and evolution of asymmetric male genitalia in the subgenus Ashima Chen (Diptera: Drosophilidae: Phortica Schiner), with descriptions of seven new species, pp. 1-54 in Zootaxa 4789 (1) on page 11, DOI: 10.11646/zootaxa.4789.1.1, http://zenodo.org/record/388461
Vacuum Insulation Panels Applied in Building Constructions
No full textDue to sustainability and due to international treaties, it is desired and required to reduce greenhouse gas emissions drastically. One contributor to these emissions is the burning of fossil fuels for generating power and electricity to be used in and for buildings. Buildings and building-related processes are responsible for about 40% of the primary energy consumption in the European Union. More than half of this energy is applied for heating systems in dwellings and commercial buildings. The European Union therefore has laid down new energy performance requirements for buildings in the European Directive on the Energy Performance of Buildings. Moreover, a reduction of energy losses of buildings during their occupational phase is important for facilitating the implementation of sustainable energy sources in the built environment. Increasing the insulation value of the envelope of buildings may contribute to this reduction of primary energy use. Two strategies can be followed. The first strategy is to increase the thickness of the thermal insulation layer. Until recently, this strategy has primarily been adopted. If, however, German or Swiss Passivhaus standard is applied, the thickness of this insulation layer would increase to beyond 30 cm, resulting in very thick building enclosures. The second, more innovative, strategy for reducing energy losses through the building skin would be the application of more effective thermal insulators. One such more effective thermal insulator is a vacuum insulation panel, abbreviated as VIP. A VIP consists of an open-celled core material which is evacuated and then tightly sealed into a barrier envelope to maintain this vacuum. The vacuum inside the pores of the core material reduces the thermal conductivity of the product significantly, as a result of which the thickness of the insulation layer can be reduced to obtain a certain performance. This reduction of thickness is among the most promising features for large-scale application of VIPs in the building industry. However, integration of VIPs into buildings must be performed very meticulously for several reasons; first, due to its nature a VIP cannot be processed on site and needs careful planning in advance; second, it is very sensitive to mechanical damage thus requiring careful handling; third, thermal bridges along the panel’s edges reduce its performance; fourth, the composite system is highly subjected to aging. This dissertation therefore looks into many of these aspects, presents several calculation tools and shows how VIPs can be applied in façade panels, EPS insulation boards and as under-floor insulation. With the wide-spread proliferation of VIPs in buildings a more sustainable and healthy environment can then be achieved.Building TechnologyArchitectur
Development of a Six-degree-of-freedom Measurement System for the Accuracy of X-Y Stages
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