Convenient Channel Research Articles

The MoS2/rGO embed in macro-porous PAN gel as a novel DGT binding phase for the rapid and accurate detection of trace Hg(II)

The development of binding gels with a fast uptake rate, high capacity, and good selectivity could be beneficial for trace Hg(II) detection based on the DGT technology. In this study, a novel PAN@MoS2/rGO-DGT was assembled by using the nanocomposite embedded in polyacrylonitrile membrane (PAN@MoS2/rGO) as the binding phase. The interior regular finger-like macropore of the gel provided a convenient channel for the rapid mass diffusion of Hg(II), and the abundant sulfur offered the paramount driving force for trapping Hg(II). These endowed the PAN@MoS2/rGO with an impressive reaction rate, capacity, and selectivity toward Hg(II) and featured the PAN@MoS2/rGO-DGT with excellent diffusion rate (D) and adaptability in the complex matrixes across a wide range of pH, ion strength, common cations. However, the uptake of Hg(II) was influenced by the high content of chloride, thus a calibrated model was established based on the chloride concentration to correct the accumulated mass and D. After that, the high accuracy of this method was confirmed through the good consistency between Hg(II) concentration assessed by DGT and in bulk solution when the DGT was deployed to the river water, seawater, and domestic wastewater at the static and dynamic Hg(II) concentration. Field trials in the prawn farming seawater and lake water also showed a negligible deviation of Hg(II) content from the DGT and the conventional method, acquiring the actual Hg(II) level as 1.07-3.69 ng/L. The findings highlighted the application potential of macropore PAN gel hybrid with nanocomposite as a promising binding phase for trace Hg(II) or other pollutant detection.

A Study of Subtitle Translation from the Perspective of Multimodal Discourse Analysis: A Case of My People, My Country

In the context of globalization, audio-visual works produced by ever-evolving information technology provide a quick and convenient channel for bridging cultural divides and communicating with people from all over the world. People harness these productions not only to satisfy their own entertainment needs but also to gain information about other cultures. As manifold cultures and races become increasingly interconnected, the need for intercultural communication is particularly urgent, and with abundant European and American films and cultural productions taking over the world, the significance of subtitle translation cannot be understated. On the surface, subtitle translation transforms one language into another and puts it on screen at the same time. However, at a deeper level, subtitling involves a wide range of cultural and social contexts in both the source and target languages. Translators need to not only use their translation skills to select words and sentences, but also have a deep understanding of the social and cultural aspects of both languages. This is the only way to smoothly accomplish the language transfer and help the audience accurately make sense of the meaning of the words in the film. At the same time, China has entered a new era and is facing unprecedented changes in a century. Only by spreading its own culture, promoting the achievements of excellent Chinese civilization, and gaining widespread international recognition will it be able to stand firm and progress against the tide of globalization. However, even though Chinese film and television products are constantly being produced and innovated every year, there are certain shortcomings in the dissemination of film and television works and the study of subtitle translation. This thesis takes Professor Zhang Delu’s theoretical framework of multimodal discourse analysis as its perspective and selects the subtitle corpus of the film My People, My Country, which was released around National Day in 2019 to celebrate the 70th anniversary of the founding of the People’s Republic of China, as the object of study. Based on the integrated framework of multimodal discourse analysis, the author carefully selects typical examples from My People, My Country to analyze the effects of multimodal discourse analysis on subtitle translation at the cultural, contextual, content, and expression levels, and investigates how different modalities work together to vividly convey the meaning of the film’s discourse. In conclusion, multimodal discourse analysis theory has injected new momentum into the study of subtitle translation applications, breaking away from the traditional monomodal and symbolic studies and contributing to the international dissemination of more domestic audio-visual cultural products.

Effects of diamond/Al interface structure evolution on interfacial thermal conductance during the carbonization of the Cr interlayer

The correlation between the interface structure evolution and the interfacial thermal conductance (ITC) in diamond particles reinforced Al matrix (diamond/Al) composites has been largely unclear. Herein, diamond/Cr/Al nanolayered structures with the interlayers in different carbonization stages were prepared via magnetron sputtering and annealing treatment to simulate the interfaces in diamond/Al composites. As the annealing time increases, the formed Cr3C2 phase progressively grows from discrete particles to a continuous layer at the diamond/Cr interface, during which the thickness of the carbide layer gradually increases. The formation of Cr3C2 phase improves the interface bonding and provides a more convenient channel for the heat exchange of hot carriers between the interfaces. Accordingly, the ITCs of the samples gradually increases with the annealing time and reaches the maximum value of 436.66 MW/(m2·K) at 120 min due to the formation of a thin and continues Cr3C2 layer. However, considering high interfacial thermal resistance was introduced at the interface when the Cr3C2 interlayer is too thick, the ITC of the sample decreased to 321 MW/(m2·K) as the annealing time extended to 240 min. In addition, Al8Cr5 phase is generated at the Al/Cr interface, but its impact on the ITC of the samples is negligible due to the small amount.

Fire performance of aged and corroded reinforced concrete columns

The existing guidelines for determining the fire ratings of reinforced concrete (RC) columns only take into account undamaged components, without considering any deterioration caused by age or corrosion. An experimental study was conducted to examine the effect of corrosion on the fire performance of RC columns. In this study, six full-scale RC column specimens were cast, corroded, and tested in fire conditions, consisting of two made of normal strength concrete (NSC) and four made of high-strength concrete (HSC). Out of these six, three RC columns (1-NSC and 2-HSC) were corroded using a specifically designed accelerated corrosion setup for a target mass loss of 30 %. After the completion of the accelerated corrosion exposure time, these three corroded column specimens, along with three other non-corroded control column specimens, were tested in a fire furnace, simulating the ISO-834 fire curve. It was found that due to corrosion exposure, the steel reinforcement underwent significant mass loss, and severe corrosion cracks were observed. These cracks were discovered to serve as convenient channels for heat transfer. This facilitated the earlier and more severe spalling of the concrete cover, ultimately leading to premature deterioration in the strength of the corroded RC columns during the fire. Consequently, this contributed to the catastrophic failure of the corroded RC columns, with a significant reduction in fire ratings- 44 % for NSC columns and 40.49 % for HSC columns. This paper also addresses the spalling characteristics of the corroded columns and their structural responses, including axial deformations, lateral deformations, and load variations.

Pricing strategy for co-created products in platform-based consumer innovation

Consumer innovation, which is the participation of consumers (or users) in product research and development, has become increasingly popular in recent years. Simultaneously, large technological advances on the internet have provided a convenient channel for consumers to contribute creative ideas in co-creation activity, providing an opportunity to rebuild our business ecosystem. We focus on how the platform impacts the process of consumer innovation. In this paper, we consider a setting in which a platform enterprise, a producer, and a group of consumers jointly design and produce a co-created product. In the co-creation process, the platform collects consumers’ ideas, sets three different innovation standards (i.e., practicality-oriented innovation, novelty-oriented innovation, and mixed innovation), and then sells the integrated idea to the producer. We demonstrate that each of the three innovation standards has its own scope of application, and no one standard is strictly dominant. Furthermore, a consumer is more willing to purchase the product with the increase in the effort exerted by himself when participating in a co-creation activity. Finally, we find that government subsidies for the platform enterprise are not always high-efficient in terms of increasing social welfare.

Role of KKN Students in the Development of Sustainable Tourism Villages

Desa Lenek Ramban Biak has transformed into an ecotourism village due to its various tourism potentials, including natural, cultural, and religious attractions. However, both the government and local communities lack awareness of the importance of managing village tourism. Through the Community Service Program (Kuliah Kerja Nyata) conducted by PMD UNRAM, efforts have been made to enhance cleanliness and attract more visitors. Activities include creating photo spots, producing promotional videos, and establishing waste disposal facilities through collective clean-up efforts. The implementation methods involve crafting waste bins from recycled bamboo, conducting clean-up drives at tourist spots, producing promotional videos, and creating photo spots using wood and bamboo. The addition of photo spots aims to make the tourist destination more appealing. The use of bamboo waste bins is intended to raise awareness among the community about waste management and promote a cleaner and healthier environment. Additionally, leveraging technological advancements for promotional video production facilitates wider outreach through social media platforms, thereby increasing awareness among the public. Social media serves as a convenient channel for disseminating information about the tourist destination.

VR in Soccer Training

Nowadays virtual reality (VR) technology has been applied to many aspects of soccer training, and corresponding studies have been conducted in technical skills, cognitive psychology, tactical ability, and, sports rehabilitation. This paper explores the impact of VR on soccer training by reviewing a large amount of literature and integrating, summarizing, and concluding it. It has been found that VR has a significant effect on improving the technical skills, cognitive psychology, tactical ability, and sports rehabilitation of soccer players. For enhancing sports performance in the real world, VR technology has great potential for development in the future. However, it remains to be seen whether VR will be widely used by athletes, coaches, and sports organizations. With the current state of development, the functionality of VR systems will become more and more powerful in the future, as well as less costly, providing a more convenient channel for its application and popularization in soccer. Although the scientific evidence to prove its effectiveness is still weak, the practice of VR and soccer training innovations will occur more frequently and be more closely integrated with other advanced technologies, so that future research on this topic will be richer, deeper, and more comprehensive.

Potassium permanganate oxidation of low-permeability phenanthrene contaminated soil under fracturing conditions

In situ chemical oxidation (ISCO) technology has limitations in the remediation of low-permeability polycyclic aromatic hydrocarbon (PAHs)-contaminated sites because of the difficulty in oxidant delivery. Horizontal fractures created by hydraulic fracturing provide convenient channels for rapid oxidant delivery. However, limited studies have focused on potassium permanganate (KMnO4) oxidation in low-permeability PAH-contaminated sites under fracturing conditions considering in situ hydrological environments. Therefore, this study aimed to explore the effect of KMnO4 concentration on the remediation efficiency (including the removal rate of phenanthrene (PHE), remediation time, and total oxygen demand (TOD)) of low-permeability PHE-contaminated soil through a one-dimensional penetration-oxidation test, and the effect of KMnO4 oxidation on the physicochemical properties of the soil through a series of laboratory experiments. The results showed that an increase in KMnO4 concentration shortened the remediation time and increased the removal rate of PHE and TOD from PHE-contaminated soil. The oxidation of KMnO4 resulted in an increase in the pH, oxidation-reduction potential, dissolved organic carbon, cation exchange capacity, specific surface area, and fine particle content of the soil, and a decrease in the total organic carbon of the soil, but did not alter the permeability of the soil.

Non-transgenic, PAMAM co-delivery DNA of interactive proteins NbCRVP and NbCalB endows Nicotiana benthamiana with a stronger antiviral effect to RNA viruses

BackgroundViral diseases continue to pose a major threat to the world’s commercial crops. The in-depth exploration and efficient utilization of resistance proteins have become crucial strategies for their control. However, current delivery methods for introducing foreign DNA suffer from host range limitations, low transformation efficiencies, tissue damage, or unavoidable DNA integration into the host genome. The nanocarriers provides a convenient channel for the DNA delivery and functional utilization of disease-resistant proteins.ResultsIn this research, we identified a cysteine-rich venom protein (NbCRVP) in Nicotiana benthamiana for the first time. Virus-induced gene silencing and transient overexpression clarified that NbCRVP could inhibit the infection of tobacco mosaic virus, potato virus Y, and cucumber mosaic virus, making it a broad-spectrum antiviral protein. Yeast two-hybrid assay, co-immunoprecipitation, and bimolecular fluorescence complementation revealed that calcium-dependent lipid-binding (CaLB domain) family protein (NbCalB) interacted with NbCRVP to assist NbCRVP playing a stronger antiviral effect. Here, we demonstrated for the first time the efficient co-delivery of DNA expressing NbCRVP and NbCalB into plants using poly(amidoamine) (PAMAM) nanocarriers, achieving stronger broad-spectrum antiviral effects.ConclusionsOur work presents a tool for species-independent transfer of two interacting protein DNA into plant cells in a specific ratio for enhanced antiviral effect without transgenic integration, which further demonstrated new strategies for nanocarrier-mediated DNA delivery of disease-resistant proteins.Graphical abstract

Xinjiang on the New Silk Road: Kyrgyzstan's Energy and China's Manufacturing Foreign Trade

Located in the northwest of China, Xinjiang plays a key role as an important node of the New Silk Road. The purpose of this study is to explore the influence of Xinjiang's geographical position, economic development, infrastructure construction, cultural exchange and energy resources in this initiative. First of all, Xinjiang's geographical advantages make it a key link between China and Central Asia, Europe and other places, providing a convenient channel for promoting international trade and logistics. Secondly, large-scale infrastructure investment, such as high-speed railway, highway and port construction, has improved Xinjiang's trade and logistics capabilities, and also brought economic growth and employment opportunities. In addition, Xinjiang's multi-culture and ethnic characteristics promote cross-border cultural exchanges and create opportunities for understanding and cooperation between different cultures. Finally, Xinjiang's abundant energy resources are of strategic significance to China's energy economy and help to ensure the country's energy security. This study emphasizes the key position of Xinjiang in the Silk Road, and its positive role in regional economic integration and cooperation, which provides useful insights for further discussion on this issue.

Effects of microstructure and morphological distribution on hydrogen-embrittlement sensitivity of Ti–6Al–4V alloy welded joint

The effects of the organizational characteristics and morphological distribution of Ti–6Al–4V alloy welded joint on their resistance to hydrogen embrittlement were investigated. The β-phase continuity of the base material (BM) was poor, and the large volume of the striped α-phase hindered hydrogen diffusion. Consequently, the BM has low hydrogen embrittlement sensitivity. The basket-like phase distribution of the weld material (WM) had better β-phase continuity and higher phase boundary density compared with the BM, providing a more convenient channel for hydrogen diffusion and more hydrogen absorption sites. Therefore, the WM had a high hydrogen embrittlement sensitivity.

Mediating and Moderating Effects of Internet Use on Urban-Rural Disparities in Health Among Older Adults: Nationally Representative Cross-Sectional Survey in China.

The urban-rural disparities in health outcomes in China are remarkable. The internet has shown the potential to reduce the likelihood of contracting a disease by increasing disease knowledge. However, little is known about the effects of internet use in alleviating health inequities between urban and rural areas. This study aimed to examine the mediation and moderation of health disparities between urban and rural older adults through internet use. A total of 8223 respondents were selected from the China Health and Retirement Longitudinal Study 2018 data set. Basic activities of daily living, a brief Community Screening Instrument for Dementia, and the Centre for Epidemiologic Studies Depression Scale were used to measure functional disability, cognitive function, and depressive symptoms, respectively. Logistic regressions testing "internet use×urban-rural status" interactions for moderation and Karlson-Holm-Breen decomposition for mediation were performed. Internet use moderated the urban-rural disparities in cognitive function (odds ratio 7.327, 95% CI 3.011-17.832) and depressive symptoms (odds ratio 1.070, 95% CI 1.037-1.787), but the moderating effects were significant only for those using the internet daily. Karlson-Holm-Breen results showed the suppression effects of using the internet daily (β=.012, 95% CI .002-.021) on the association between urban-rural status and cognitive function. The urban-rural inequality in depressive symptoms was partially attributed to the disparity in internet use (β=-.027, 95% CI -.043 to -.009). The urban-rural inequalities in mental health are partially attributable to disparities in the prevalence of internet use between the 2 groups. However, using the internet is more beneficial for the psychological health of rural users, thereby alleviating the urban-rural disparities in health. Providing convenient channels for rural older adults to use the internet, improving the ability of rural users to effectively use the internet, and promoting internet popularity in rural areas are effective approaches to reducing urban-rural health inequalities.

New traveling wave solutions, phase portrait and chaotic pattern for the stochastic modified Korteweg–de Vries equation

This article mainly studies the new traveling wave solutions of the stochastic modified Korteweg–de Vries equation with multiplicative noise. The traveling wave solutions in the form of hyperbolic function, trigonometric function, rational function and Jacobi elliptic function are obtained by transforming the modified Korteweg–de Vries equation into an ordinary differential equation through traveling wave transformation, and combining it with the complete discriminant system of polynomials. This article fully applies visual analysis technology and provides graphical representations of the obtained solutions in multiple dimensions such as phase maps, sensitivity maps, 3D maps and 2D maps, providing an intuitive and convenient channel for people to further understand the physical characteristics of the solutions for the stochastic modified Korteweg–de Vries equation. This article provides a rich graphical analysis of the solutions to the stochastic modified Korteweg–de Vries equation from multiple perspectives, and provides a fast and efficient solution method for the exact solution of the equation. The research method in this paper can also be used to study nonlinear partial differential equation in other fields.

The Marketing Position and Strategy of IKEA in China under New Retail Background

With the development of economic globalization and technological informatization, the home furnishing industry is facing the transformation from traditional retail to a new retail model. Based on literature analysis and case studies, this paper discusses the concept of new retail and its difference from the traditional retail model and analyzes the challenges faced by IKEA in the Chinese market, such as slowing sales and traffic growth, late e-commerce layout, and fierce competition. Using the STP model and the 4P model, we analyze IKEA's marketing strategy in the Chinese market and suggest improvements to the product, promotion, and publicity strategies. It will promote IKEA's development and innovation, and bring thoughts and strategic value to the Chinese home furnishing industry in the new retail era. Through the analysis of IKEA's marketing strategy, it can be determined that in the new era, home marketing should start from product diversification and networking to win consumers with more appropriate prices and convenient channels.

FOREIGN EXPERIENCE IN IMPLEMENTING DIGITAL EDUCATION IN THE CONTEXT OF DIGITAL ECONOMY TRANSFORMATION

The relevance of the research topic is that the study of foreign experiences in the implementation of digital education in the context of digital economic transformation is of great importance. In the context of digitalisation, developed countries are implementing digitalisation policies to promote the digital transformation of education, focusing on improving digital literacy and digital competence. The purpose of the study is to conceptualise the foreign experience of implementing digital education in the context of digital economy transformation. This study aims to examine the global implementation of digital education as a social and economic phenomenon. This study focuses on exploring the impact of the digital economy on the transformation of digital education. The research will focus on: (1) reflections on the concepts of digitalisation of education in advanced countries such as the USA, Japan, India, South Korea, Australia, the UK, Germany and China; (2) definition of connotations and attributes of the digital economy; (3) identification of smart education as a condition for the transformation of the digital economy. According to the study, advanced countries are adopting smart education concepts as a crucial step towards digitalising education to achieve a balance in developing high-quality education, enhancing its quality, expanding opportunities, and promoting the formation of lifelong digital competenciesIt is concluded that the promotion of higher education as a "smart digital transformation reform" contributes to the creation of a new educational environment in the digital age, providing convenient channels for obtaining digital resources. Informatisation of education as a factor of digital transformation has created new opportunities, provided students with intelligent data for learning, given a new impetus to education reform, facilitated large-scale individualised learning, and formed innovative concepts for implementing smart education as an extension of the capabilities of digital technologies and the impact of the digital economy on the transformation of digital education.

Thinking on Ways to Promote the Active Participation of Diverse Social Subjects in Legal Aid

In the new era of the rule of law environment, people pay more and more attention to the use of legal knowledge to protect their legitimate rights and interests, but in the face of high legal fees, complex litigation procedures, the cultural level of the parties and other practical problems, the right to safeguard their legitimate rights and interests is still difficult. Legal aid pays attention to the vulnerable groups in society, providing them with the same pursuit of fairness and justice convenient channel. However, this channel is confronted with a series of problems such as insufficient social power and low participation enthusiasm of social subjects, and sometimes it cannot be truly realized. Therefore, how to effectively promote the participation of diversified social forces in legal aid is a problem worth further discussion. This paper puts forward its own thinking from the aspects of how to mobilize the enthusiasm of lawyers to handle cases, strengthen the construction of grassroots legal aid team, rely on university resources to form professional aid and organize a long-term incentive mechanism to strengthen social supervision.

Efficient degradation of chlorinated phenolic compounds by Fe@Cu materials with enhanced oxygen reduction reaction

Purification of wastewater that contains residual chlorinated phenolic compounds is important for water conservation. Fe@Cu bimetallic materials have the capability of degrading chlorinated phenolic pollutants, but the processes of electron transfer and active species generation have not been verified directly. In this work, the Fe@Cu bimetallic material, of which copper exhibits a special surface, obtained by a facile displacement reaction, was applied for 2,4-dichlorophenol (2,4-DCP) degradation. The degradation efficiency of 2,4-DCP, which is highly related to H2O2 generation and •OH production, can reach 100% at 30 min with an Fe@Cu dosage of 2 g/L in ambient atmosphere. The porous shell structure of Fe@Cu provides convenient channels for iron ion release and electron transport and transformation. According to DFT (density functional theory) calculations, Cu2O (111) on the surface of particles and Cu (111) with Fe doping possess higher selectivity and catalytic activity for H2O2 in situ generation through the 2e− oxygen reduction reaction (ORR) than Cu (111). The ⋅OH, which was the following product of *OOH and H2O2, was a strategic radical for 2,4-DCP degradation. The coexistence of •OH and •H in the Fe-Cu degradation system was directly proven. The intermediate products of 2,4-DCP degradation were identified, and the degradation intermediates revealed that the degradation function for 2,4-DCP mainly resulted from the synergistic action of ⋅H and ⋅OH. The highly efficient self-catalyst Fe@Cu can be a promising material for chlorinated phenolic compound removal in wastewater purification.

Low-temperature and high-response NO2 sensor based on oxygen vacancy-enriched ZnO tubes inherited from waste chestnut mesocarps

Herein, we reported a low-cost ZnO biomorphic material used for low-temperature and high sensing detection of trace NO2. It was simply prepared by calcining Zn(NO3)2 solution soaked waste chestnut mesocarp biotemplate at 600 °C in air for the first time. The morphology of ZnO-6 material displays one-dimensional (1D) tubular structure assembled from uniform nanoparticles, and it has small mesopore distribution, relatively large specific surface area and abundant oxygen vacancy defects. The synergy of above advantageous factors provides a convenient channel for gas diffusion, and increases the surface active sites for adsorption and chemical reactions, which in turn efficiently enhances sensing performance of ZnO material towards NO2. At 92 °C, ZnO-6 sensor achieves a high response of 365 towards 10 ppm NO2, which is 30.4 times than that (S = 12) of template-free ZnO-0 sample. Also, it is larger than most reported 1D ZnO-based NO2 sensors. This sensor still possesses fast recovery characteristic, low detection limit, and good moisture tolerance. Moreover, the improved NO2 gas-sensing mechanism is discussed in more detail.

Crack Pattern an Indicator and Type of Distress in Concrete Structures: A Compilation of Causes, Measurement and Solution

Abstract: Crack occurs over time in almost all concrete which indicates distress. It varies in depth, width, direction, pattern, location, and cause. Cracks can be either active or dormant (inactive). Active cracks widen, deepen, or migrate through the concrete. Dormant cracks remain unchanged. Some dormant cracks, such as those caused by shrinkage during the curing process, pose no danger, but if left unrepaired, they can provide convenient channels for moisture penetration, which normally causes further damage. Structural cracks can result from temporary or continued overloads, uneven foundation settling, or original design inadequacies. Structural cracks are active if the overload is continued or if settlement is ongoing; they are dormant if the temporary overloads have been removed, or if differential settlement has stabilized. Thermally-induced cracks result from stresses produced by temperature changes. They frequently occur at the ends or corners of older concrete structures built without expansion joints capable of relieving such stresses. Superficial repairs do not eliminate underlying causes. To aggravate problems, professional consultation is recommended in almost every instance where noticeable crack occurs [1].

Carbon nanotube‐supported mixed‐valence Mn3O4 electrodes for high‐performance lithium‐oxygen batteries

Lithium–oxygen batteries (LOBs) have extensive applications because of their ultra-high energy densities. However, the practical application of LOBs is limited by several factors, such as a high overpotential, poor cycle stability, and limited rate capacity. In this paper, we describe the successful uniform loading of Mn3O4 nanoparticles onto multi-walled carbon nanotubes (Mn3O4@CNT). CNTs form a conductive network and expose numerous catalytically active sites, and the one-dimensional porous structure provides a convenient channel for the transmission of Li+ and O2 in LOBs. The electronic conductivity and electrocatalytic activity of Mn3O4@CNT are significantly better than those of MnO@CNT because of the inherent driving force facilitating charge transfer between different valence metal ions. Therefore, the Mn3O4@CNT cathode obtains a low overpotential (0.76 V at a limited capacity of 1000 mAh g−1), high initial discharge capacity (16895 mAh g−1 at 200 mA g−1), and long cycle life (97 cycles at 200 mA g−1). This study provides evidence that transition metal oxides with mixed-valence states are suitable for application as efficient cathodes for LOBs.