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Sökning: WFRF:(Li H) > Bokkapitel

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  • LI, Chao, et al. (författare)
  • Applications and Developments of Anaerobic Technology in China
  • 2015
  • Ingår i: Anaerobic Biotechnology: Environmental Protection and Resource Recovery. - : IMPERIAL COLLEGE PRESS. - 9781783267927 - 9781783267903 ; , s. 297-335
  • Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
    • The Chinese government has been promoting the anaerobic treatment technology not only for pollution control but also for bioenergy recovery. Millions of decentralized anaerobic digesters have been built using animal manure and crop stalk as feedstock to improve the sanitary conditions and to produce biogas for heating and lighting for farmers and rural communities. Also, there are 22,570 medium to large sized anaerobic projects built for centralized animal manure treatment. In addition, over 2,000 medium to large anaerobic systems have been installed since 2000s for the treatment of industrial wastewaters including alcohol, starch, pulp and paper using technologies such as CSTR, UASB, EGSB, IC, etc. Overall, more than 25,100 medium to large sized anaerobic systems are now in operation in rural China, producing annually 7.5x109 m3 of biogas. Based on Chinese government’s 12th Five-Year Plan, biogas output will reach 21x109 m3 by 2020 from treatment of industrial wastewater, poultry wastes, municipal wastes and wastewater sludge; this amount will double by 2050. This Chapter is to summarize the development of anaerobic technology in China in the countryside as well as in industrial wastewater treatment. A number of case studies are present.
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  • Lindström, Per, 1967-, et al. (författare)
  • Materials and Fabrication Technology : Committee v.3
  • 2015. - 1
  • Ingår i: Proceedings of the 19th International Ship and Offshore Structures Congress, Volume 2. - EH Leiden, Nederlands : CRC Press. - 9781138028975 - 9781138028968 ; , s. 619-698
  • Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
    • Due to the past crises, the shipbuilding and offshore industry has realised that new innovative designs and design and production methods are necessary to decrease operational costs, production costs and emissions,while meeting the changing rules and regulations. This ISSC-V.3 report is discussing recent developmentin materials and fabrication technology applied to ship and offshore structures.Chapter 2 focuses on worldwide trends in materials and fabrication methods. Developments in metallicand non-metallic structural materials are dealt in Chapter 3. Advances in fabrication and joining technologiessuch as welding are increasing. Some main areas of applications and research in those areas aredescribed in Chapter 4. Innovative development about corrosion protection systems are presented inChapter 5 while Chapter 6 give an overview about the application of production simulation and virtualreality to improve the production management of ship and offshore structures.The ISSC-V.3 technical committee has performed a benchmark to define a Best Practice Guideline touse Computational Welding Mechanics tools (CWM) in shipbuilding and offshore industry. To achievethis objective various experimental welding tests have been performed in order to give a reference point.Both the residual welding distortions and residual stresses have been compared between numerical simulationsand welding experiments for a common “T” welded assembly used in the shipbuilding industry.However, it has been decided to publish the results of this study in a separate document. Nevertheless, Chapter 7 of this report presents the state of the art as well as the experimental test case that has been analysed.
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  • Reymbaut, A., et al. (författare)
  • Clinical Research with Advanced Diffusion Encoding Methods in MRI
  • 2020
  • Ingår i: Advanced Diffusion Encoding Methods in MRI. - Cambridge : Royal Society of Chemistry. - 2044-2548 .- 2044-253X. ; 2020-January:24, s. 406-429
  • Bokkapitel (refereegranskat)abstract
    • This chapter offers a comprehensive summary of applications of advanced diffusion encoding methods in MRI within a narrowly defined area of in vivo human measurements with imaging read-out and voxel-by-voxel data analysis. The list of methods comprises tensor-valued encoding to investigate cell densities, shapes, and orientations in heterogeneous tissues, time/frequency-dependent encoding for estimating structural length scales, adjustable velocity-encoding to monitor flow in the microcapillary network, double encoding with varying mixing times to assess diffusional exchange between distinct tissue microenvironments and across cell membranes, and relaxation-diffusion correlation to resolve and separately characterize tissue microenvironments in terms of their local chemical composition and microstructure. The shown examples include proof-of-concept measurements on healthy volunteers, pilot investigations of pathologies, and clinical research involving 10-100 subjects. Studied organs include brain, breast, prostate, liver, kidney, placenta, muscle, and peripheral nerve, with examples of pathologies from tumors, schizophrenia, multiple sclerosis, stroke, neurocysticercosis, pre-eclampsia, and chronic exertional compartment syndrome.
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  • Evans, David A.D., et al. (författare)
  • An expanding list of reliable paleomagnetic poles for Precambrian tectonic reconstructions
  • 2021
  • Ingår i: Ancient Supercontinents and the Paleogeography of Earth. - : Elsevier. ; , s. 605-639
  • Bokkapitel (refereegranskat)abstract
    • We present a compilation of reliable Precambrian paleomagnetic poles from three successive international workshops (in years 2009, 2014, 2017), comprising paleomagnetists specializing in Precambrian tectonic reconstructions. The working groups compiled lists of two global classes of poles, published through the end of 2017. “Grade-A” results are judged to provide essential constraints on tectonic reconstructions; “Grade-B” poles are judged to be suggestive of high-quality, but not yet demonstrated to be primary, or perhaps lacking precise geochronologic or other constraints. Our catalog documents a resurgence of high-quality data acquisition in recent years, and highlights specific cratons and time intervals that are most lacking in the data needed to reconstruct those blocks through supercontinental cycles.
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  • Gul, E., et al. (författare)
  • Perspectives and state of the art in producing solar fuels and chemicals from CO2
  • 2021
  • Ingår i: Advanced Technology for the Conversion of Waste into Fuels and Chemicals: Volume 2: Chemical Processes. - : Elsevier. - 9780323901505 ; , s. 181-219
  • Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
    • Solar Fuels and chemicals from CO2 can be produced through two main reactions: one is CO2 photoreduction, using different catalysts and different reducing agents; the other is CO2 fixation, which is usually performed through natural photosynthesis. The research nowadays is directed on the production of fuels and chemicals with one or two atoms of carbon, for example CH4, CO, HCOOH, HCHO, CH3OH, C2H5OH, etc. The chapter aims at comparing natural photosynthesis processes and reactions with artificial photosynthesis. After taking into consideration the natural photosynthetic process, the chapter focuses on heterogeneous and homogeneous photocatalysis. Heterogeneous catalysis can be performed with semiconductors and powder catalysts. Special attention is given to TiO2 as a promising photocatalyst. Homogeneous photocatalysts are usually represented by molecular catalysts, which are dissolved in water or another solvent. Usually, homogeneous photocatalysis is performed in complex systems which are composed by: a light harvesting unit (LHU) (i.e. the photosensitizer); one catalytic site for the oxidation process, where the electrons are supplied by a sacrificial donor; one reduction site, where the electrons are transmitted to CO2. Finally, even more complex systems are represented by those based on photoelectrocatalysis. These have the main advantage to separate the oxidation and reduction reactions at the two different electrodes of the system. In principle photoelectrochemical cells can be a way to mimic artificially the working principle of natural photosynthesis.
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  • Nakato, H., et al. (författare)
  • Functions of Heparan Sulfate Proteoglycans in Development : Insights From Drosophila Models
  • 2016
  • Ingår i: International Review Of Cell And Molecular Biology, Vol 325. - : Elsevier. - 9780128052228 ; , s. 275-293
  • Bokkapitel (refereegranskat)abstract
    • Heparan sulfate proteoglycans (HSPGs) are a class of carbohydrate-modified proteins involved in key biological processes, including growth factor signaling, cell adhesion, and enzymatic catalysis. HSPGs serve as coreceptors for a number of ligand molecules to regulate their signaling and distribution. These HS-dependent factors include fibroblast growth factors, bone morphogenetic proteins, Wnt-related factors, hedgehog, and cytokines. Several classes of HSPGs are evolutionarily conserved from humans to the genetically tractable model organism Drosophila. Sophisticated molecular genetic tools available in Drosophila provide for a powerful system to address unanswered questions regarding in vivo functions of HSPGs. These studies have highlighted the functions of HSPGs in the regulation of significant developmental events, such as morphogen gradient formation, nervous system formation, and the stem cell niche. Drosophila genetics has also established HSPGs as key factors in feedback controls that ensure robustness in developmental systems.
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