124,208 research outputs found
Financing and Deploying Automated Freight Systems
Get PDFNew technologies are bringing Automated Freight Systems (AFS), which aim to reduce congestion, mitigate environmental impacts and enhance public safety, to fruition. The financing and deployment issues of AFS differ from other Intelligent Transport System applications. This chapter briefly introduces major concepts of AFS. The financing strategies for these concepts are discussed, in which the government subsidies play an important role through the use of public-private partnership. Economies of scale and externalities of the current and new systems are discussed. In the discussion of the deployment of AFS, it is suggested that deployment schemes are highly correlated with financing strategies.Automated Freight, Pipeline, Trucks, Rail
Optimal performance-based design of FRP jackets for seismic retrofit of reinforced concrete frames
No full textX.K. Zou, J.G. Teng, L. De Lorenzis and S.H. Xi
An infinite family of m-ovoids of the hyperbolic quadrics Q^+(7, q)
No full textAn infinite family of (q^2 + q + 1)-ovoids of Q^+(7, q) admitting the group PGL(3,q), is constructed. The main tool is the general theory of generalized hexagons
Non-invasive sensing for food reassurance
No full textConsumers and governments are increasingly interested in the safety, authenticity and quality of food commodities. This has driven attention towards non-invasive sensing techniques used for rapid analyzing these commodities. This paper provides an overview of the state of the art in, and available alternatives for, food assurance based on non-invasive sensing techniques. The main food quality traits of interest using non-invasive sensing techniques are sensory characteristics, chemical composition, physicochemical properties, health-protecting properties, nutritional characteristics and safety. A wide range of non-invasive sensing techniques, from optical, acoustical, electrical, to nuclear magnetic, x-ray, biosensor, microwave and terahertz, are organized according to physical principle. Some of these techniques are now in a period of transition between experimental and applied utilization and several sensors and instruments are reviewed. With continued innovation and attention to key challenges, such non-invasive sensors and biosensors are expected to open up new exciting avenues in the field of portable and wearable wireless sensing devices and connecting with mobile networks, thus finding considerable use in a wide range of food assurance applications. The need for an appropriate regulatory framework is emphasized which acts to exclude unwanted components in foods and includes needed components, with sensors as part of a reassurance framework supporting regulation and food chain management. The integration of these sensor modalities into a single technological and commercial platform offers an opportunity for a paradigm shift in food reassurance
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Measurement of the total and differential Higgs boson production cross-sections at s = 13 TeV with the ATLAS detector by combining the H → ZZ* → 4ℓ and H → γγ decay channels
No full textAbstract
The total and differential Higgs boson production cross-sections are measured through a combined statistical analysis of the H → ZZ* → 4ℓ and H → γγ decay channels. The results are based on a dataset of 139 fb−1 of proton–proton collisions at a centre-of-mass energy of 13 TeV, recorded by the ATLAS detector at the Large Hadron Collider. The measured total Higgs boson production cross-section is
55.5
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3.8
+
4.0
pb, consistent with the Standard Model prediction of 55.6 ± 2.5 pb. All results from the two decay channels are compatible with each other, and their combination agrees with the Standard Model predictions. A combined statistical interpretation of the measured fiducial cross-sections as a function of the Higgs boson transverse momentum is performed in order to probe the Yukawa couplings to the bottom and charm quarks. A similar interpretation is performed by including also the constraints from the measurements of Higgs boson production in association with a W or Z boson in the H →
b
b
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and
c
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decay channels
Waarom zou je (nú) lezen? /
No full textBijdragen van een wetenschappelijk congres over de betekenis, functie en het belang van lezen en literatuur in de huidige samenleving. Ook is er aandacht voor het digitale lezen.Bijdragen van een wetenschappelijk congres over de betekenis, functie en het belang van lezen en literatuur in de huidige samenleving. Ook is er aandacht voor het digitale lezen. Met enige zwart-witillustraties. Voor vakcollecties jeugdliteratuur.Weerslag van de bijdragen aan het congres "Waarom zou je (nú) lezen?", georganiseerd door Stichting Lezen, Amsterdam 2010.Met lit. opg.Bijdragen van een wetenschappelijk congres over de betekenis, functie en het belang van lezen en literatuur in de huidige samenleving. Ook is er aandacht voor het digitale lezen.Bijdragen van een wetenschappelijk congres over de betekenis, functie en het belang van lezen en literatuur in de huidige samenleving. Ook is er aandacht voor het digitale lezen. Met enige zwart-witillustraties. Voor vakcollecties jeugdliteratuur.Mottart, Andr
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Author Response to “Pushing the Limits of Strength Training”
No full textPhotothermal catalytic dry reforming of methane with CO₂ has emerged as a promising yet nascent strategy for mitigating greenhouse gas emissions and enabling clean energy conversion. However, achieving optimal performance requires advances in both catalyst design and mechanistic understanding. Herein, we adopted a double-emulsion-guided micelle assembly strategy to synthesize asymmetric supports (AMONs and AMOMs), featuring unidirectional open/closed pore channels. This distinctive architecture enabled the formation of an asymmetric catalyst configuration through ethylene glycol-assisted selective confinement of Ni nanoparticles at the open-pore termini. Compared to conventional symmetric catalysts, the optimized 5% Ni AMONs EG and 5% Ni AMOMs EG exhibited higher specific surface areas and improved metal dispersion, resulting in an abundance of active sites. Moreover, the asymmetric design strengthened the built-in electric fields, directing more photogenerated hot carriers and localized thermal energy toward reactant activation. Consequently, 5% Ni AMOMs EG achieved a remarkable H₂ production rate of 2314.2 mmol g⁻¹ h⁻¹ and sustained H₂ yields over 50 hours, outperforming symmetric counterparts and even some reported noble metal-based catalysts. This work offers a smart photothermal catalyst candidate and elucidates its structure–performance relationship, advancing photothermal catalytic technology for solar fuel production.Cheng Sang, Weiyi Xu, Kang Xue, Yajie Zou, Shuli Li, Shengjie Han, Haijun Chen, Hongqi Sun, Shaobin Wang, and Jinqiang Zhan
Analytical study of the bond behavior of fiber reinforced cementitious matrix (FRCM)-substrate joints based on a two-stage nonlinear cohesive material law
No full textExternally bonding fiber-reinforced cementitious matrix (FRCM) composite to the surface of concrete or masonry members is an effective technique to improve the performance of existing structures. In many cases, interfacial debonding between the FRCM fiber textile and embedding matrix governs the capacity of FRCM-strengthened structures. The interfacial debonding process can be studied analytically by assuming a cohesive material law (CML), which represents the relationship between interfacial shear stress and slip. In this study, a two-stage function with an exponential stage and a constant stage is proposed to describe the CML associated with the matrix-fiber interface. The latter stage is characterized by a constant shear stress to account for the friction/interlocking between the matrix and fiber observed in experimental tests. With the assumed CML, the full-range loading response was obtained. Additionally, the interfacial slip, fiber axial strain, and interfacial shear stress were analytically derived. The parameters of the two-stage CMLs for PBO, glass, and carbon FRCM were inversely determined by matching the analytical relationships of peak applied axial stresses associated with different bonded lengths with the experimental ones. Considering the inversely determined CMLs, the predicted load responses and strain profiles showed good agreement with the measurements of direct shear test specimens
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