Cross-media System Research Articles

Synergistic Dual-Mechanism Localized Heat Channeling and Spectrum-Tailored Liquid Metal Hydrogels for Efficient Solar Water Evaporation and Desalination.

Photothermal hydrogels featuring broadband light absorption abilities and highly hydrated networks provide an appealing mass-energy transfer platform for water evaporation by using solar energy. However, the targeted delivery of solar heat energy to power the water evaporation process remains challenging. Herein, enlightened by metal-phenolic coordination chemistry and camouflaged architecture, photothermal hydrogels with dual-mechanism vaporization structure are tactfully designed via a rational interfacial engineering and integration strategy to enable near-µm heat confinement and highly efficient light-to-heat conversion ability. The spectrum-tailored liquid metal droplet (LMGAs-FeIII ) and optimized carbon-wrapped silver nanowire sponge (Ag@C750 ) are integrally built as photothermal promotors/channels and jointly embedded into a highly hydratable poly(vinyl alcohol) hydrogel, denoted as PALGH,to synergisticallyboost watermolecule activation and interfacial vaporization behavior by triggering robust photothermal performance. As a result, under one sun irradiation, the all-embracing PALGH hydrogel evaporation system achieves a brine evaporation rate to a high level of 3.47kg m-2 h-1 , and >19 L m-2 clean water of PALGH is ideally delivered daily when purifying natural seawater. This work offers not only a rational design principle to create sophisticated photothermal materials but also replenishes insight into solar heat generation and water transportation in a cross-media system.

Nikkei as a complete cross-media system

The scientific paper is devoted to the cross-media system which is built around Japanese economic newspaper Nikkei. The work considers the phenomenon of cross-media, the preconditions of its establishment in Japan, and its functioning with complete Nikkei cross-media platform as an example. Research shows how traditional Japanese daily press evolves into cross-media. The academic work considers the peculiarities of the most influential economic newspaper Nikkei, its history, topics and different channels through which the audience consumes information within the cross-media system. In addition, the author analyzes the circulation of various editions of the newspaper, tracing its changes from 2012 to 2019. The article analyzes how the newspaper builds a cross-media platform around print media, online publications, television, radio, information networks, participation in educational projects and exhibitions, and the introduction of augmented reality elements. The research compares cross-media categories by Gary Hayes with Nikkei cross-media elements, illustrating each category. The author also considers how Nikkei enters the global market, analyzes the processes of globalization and digitization of Japanese media model. The author defines the relationship between the development of online cross-media elements and the steady decline of the print circulations. The results of the work can be used for the further studies of Japanese media theory in domestic and foreign scientific discourses.

A Benchmark Dataset and Learning High-Level Semantic Embeddings of Multimedia for Cross-Media Retrieval

The selection of semantic concepts for modal construction and data collection remains an open research issue. It is highly demanding to choose good multimedia concepts with small semantic gaps to facilitate the work of cross-media system developers. However, very little work has been done in this area. This paper contributes a new, real-world web image dataset for cross-media retrieval called FB5K. The proposed FB5K dataset contains the following attributes: 1) 5130 images crawled from Facebook; 2) images that are categorized according to users’ feelings; 3) images independent of text and language rather than using feelings for search. Furthermore, we propose a novel approach through the use of Optical Character Recognition and explicit incorporation of high-level semantic information. We comprehensively compute the performance of four different subspace-learning methods and three modified versions of the Correspondence Auto Encoder, alongside numerous text features and similarity measurements comparing Wikipedia, Flickr30k, and FB5K. To check the characteristics of FB5K, we propose a semantic-based cross-media retrieval method. To accomplish cross-media retrieval, we introduced a new similarity measurement in the embedded space, which significantly improved system performance compared with the conventional Euclidean distance. Our experimental results demonstrated the efficiency of the proposed retrieval method on three different datasets to simplify and improve general image retrieval.

Colour reproduction analysis of portrait photography in cross-media system: image on the computer monitor–electrophotographic printing

Photography is dominant illustration technique. Two-thirds of illustrations are realised in this technique most in commonly in the digital photography system. The portrait is one of the most present and most challenging photographic motifs which can be, in a technical sense, analysed primarily through monitoring of the changes in the skin colours. Modern publishing is characterised by increasing number of small circulations created in electrophotographic printing and, parallel, in electronic media. This paper deals with the portrait photography created on the computer monitor and with electrophotographic printing and the question if they can be, for consumers, considered to be the same. The evaluation was attended by the visual comparison based on the principle of memory harmonisation and ΔE00 determination. The results point out satisfactory reproduction in the electrophotographic printing of colour portrait photography in comparison to the portrait defined on the computer monitor, although the reproduction results in colour changes for skin colours and primary and secondary colours of additive and subtractive synthesis.