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Topic Review
Biography
Topic Review
Semiconductor Materials for Photocatalytic Reduction of CO
2
The photocatalytic reduction of CO2 is one of the most effective methods to control CO2 pollution. Therefore, the development of novel high-efficiency semiconductor materials has become an important research field. Semiconductor materials need to have a structure with abundant catalytic sites, among other conditions, which is of great significance for the practical application of highly active catalysts for CO2 reduction. The photocatalytic reduction of CO2 is a surface/interface reaction. It is important to find and use raw materials which are environmentally friendly and effective as catalysts.
1.0K
27 May 2022
Topic Review
Natural Thermal Convection of Nanofluids
Nanofluids are considered as advanced heat transfer media for thermal management and conversion systems. Research on the convective heat transfer is of paramount importance for their numerous applications. This paper presents development of experimental research on the natural convection heat transfer of nanofluids in different geometries. Experimental results and available experiment-derived correlations for the natural thermal convection of nanofluids are critically analysed. Other features such as nanofluid preparation and thermophysical properties of nanofluids that are important for convection heat transfer are also briefly reviewed and discussed. It is demonstrated that there is considerable inconsistencies of available results on these properties and features of nanofluids.Although nanofluids exhibit enhanced thermophysical properties like viscosity and thermal conductivity, convective heat transfer coefficients were also observed to deteriorate in some cases when nanofluids were used, especially for higher concentration of nanoparticles (> 0.1 vol%). However, the underlying mechanisms are also not yet well-understood despite its great importance for practical applications.
1.0K
05 Oct 2020
Topic Review
Indoor Environmental Quality
A discussion of sustainability in architecture cannot be meaningfully carried out without the inclusion of most buildings’ central purpose, namely the provision of indoor environments that are accommodating of occupants’ needs and requirements. To this end, building designers and operators are expected to demonstrate compliance with codes and standards pertaining to indoor environmental quality (IEQ). However, the majority of conventional IEQ standards, codes,and guidelines have a single-domain character, in that they address IEQ in terms of a number of isolated domains (i.e., thermal, visual, acoustic, air quality). In this context, the present contribution explores the current state of multi-domain IEQ evaluation approaches and the necessary conditions for their further development and application. Toward this end, a number of common building rating schemes were selected and analyzed in detail. The results of this assessment imply the necessity of both short-term improvements of the existing schemes in terms of the transparency and plausibility of the applied point allocation and weighting strategies and the fundamental need for a deeper empirically grounded understanding of the nature of occupants’ perception of and behavior in the built environments.
1.0K
23 Oct 2020
Topic Review
Structure of Miruk-Jõn Hall Kumsan-Sa Temple in Korean
The Miruk-jõn Hall of Kumsan-sa Temple (reconstructed in 1635, National Treasure No. 62) is in Gimje-si, Jeollabuk-do in the southern region of Korea. The Miruk-jõn Hall is a pagoda hall with a diminished structure, and the interior is thought to have been built in an ancient style. Miruk-jõn is a three-storied building, and the pillar spacing is five ken (2) (bays) for the first story, five ken for the second story, and three ken for the third story. In the second story, both Hatamas (the last interval between pillars) are narrowed.
1.0K
26 Apr 2022
Topic Review
Evolution of Intelligent Vehicle Technology
The time evolution of intelligent vehicle technology is explained, which highlights the development of an intelligentvehicle and its safety applications, focusing on the various usages of perception sensors in production.
1.0K
25 Nov 2020
Topic Review
Methods for Residual Stress Testing
This entry introduces several commonly used residual stress measurement methods.
1.0K
29 Oct 2020
Topic Review
Radeon HD 4000 Series
The Radeon R700 is the engineering codename for a graphics processing unit series developed by Advanced Micro Devices under the ATI brand name. The foundation chip, codenamed RV770, was announced and demonstrated on June 16, 2008 as part of the FireStream 9250 and Cinema 2.0 initiative launch media event, with official release of the Radeon HD 4800 series on June 25, 2008. Other variants include enthusiast-oriented RV790, mainstream product RV730, RV740 and entry-level RV710. Its direct competition was nVidia's GeForce 200 series, which launched in the same month.
1.0K
09 Nov 2022
Topic Review
Electrochemical Biosensors for Monitoring the Water Quality
Electrochemical biosensors are advantageous analytical devices or tools that convert a bio-signal by biorecognition elements into a significant electrical response. Biosensors have many advantages over the conventional lab-based method, including low costs, portability, fast response time, less usage of reagents, and the capability to continuous monitor the complex wastewater. Such sensors significantly benefit from sensing the minimum level in polluted water, such as wastewater.
1.0K
14 Jul 2023
Topic Review
Bâton de Commandement
A bâton de commandement, bâton percé or perforated baton is a name given by archaeologists to a particular prehistoric artifact that has been much debated. The name bâtons de commandement was the name first applied to the class of artifacts, but it makes an assumption of function; the name bâton percé, meaning "pierced rod", or "perforated baton" (the term used by the British Museum) is a more recent term, and is descriptive of form rather than any presumed function. Many are decorated with carved or engraved animals, and the most usual explanation of their use is that they were used for straightening spears and arrows, and as spear-throwers.
1.0K
28 Sep 2022
Topic Review
Anaerobic Digestion
Anaerobic digestion is a well-known technology with wide application in the treatment of high-strength organic wastes. The oxidation of the organic material is carried out in the absences of oxygen by microorganisms leading to the release of biogas with methane and carbon dioxide being the main components. The microbial process also produces a slurry known as digestate. This stream contains recalcitrant compounds, complex polymeric substances and biomass residual material .
1.0K
06 Mar 2021
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