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Beijing rail transit can actively control the density of rail transit passenger flow, ensure travel facilities and provide a safe and comfortable riding atmosphere for rail transit passengers during the epidemic. The purpose of this paper is to efficiently monitor the flow of rail passengers, the first method is to regulate the flow of passengers by means of a coordinated connection between the stations of the railway line; the second method is to objectively distribute the inbound traffic quotas between stations to achieve the aim of accurate and reasonable control according to the actual number of people entering the station.

This paper analyzes the rules of rail transit passenger flow and updates the passenger flow prediction model in time according to the characteristics of passenger flow during the epidemic to solve the above-mentioned problems. Big data system analysis restores and refines the time and space distribution of the finely expected passenger flow and the train service plan of each route. Get information on the passenger travel chain from arriving, boarding, transferring, getting off and leaving, as well as the full load rate of each train.

A series of digital flow control models, based on the time and space composition of passengers on trains with congested sections, has been designed and developed to scientifically calculate the number of passengers entering the station and provide an operational basis for operating companies to accurately control flow.

This study can analyze the section where the highest full load occurs, the composition of passengers in this section and when and where passengers board the train, based on the measured train full load rate data. Then, this paper combines the full load rate control index to perform reverse deduction to calculate the inbound volume time-sharing indicators of each station and redistribute the time-sharing indicators for each station according to the actual situation of the inbound volume of each line during the epidemic. Finally, form the specified full load rate index digital time-sharing passenger flow control scheme.

The application of digital twins to optimise operations and supply chain management functions is a bourgeoning practice. Scholars have attempted to keep pace with this development initiating a fast-evolving research agenda. The purpose of this paper is to take stock of the emerging research stream identifying trends and capture the value potential of digital twins to the field of operations and supply chain management.

In this work we employ a bibliometric literature review supported by bibliographic coupling and keyword co-occurrence network analysis to examine current trends in the research field regarding the value-added potential of digital twin in operations and supply chain management.

The main findings of this work are the identification of four value clusters and one enabler cluster. Value clusters are comprised of articles that describe how the application of digital twin can enhance supply chain activities at the level of business processes as well as the level of supply chain capabilities. Value clusters of production flow management and product development operate at the business processes level and are maturing communities. The supply chain resilience and risk management value cluster operates at the capability level, it is just emerging, and is positioned at the periphery of the main network.

This is the first study that attempts to conceptualise digital twin as a dynamic capability and employs bibliometric and network analysis on the research stream of digital twin in operations and supply chain management to capture evolutionary trends, literature communities and value-creation dynamics in a digital-twin-enabled supply chain.

A novel planar insertion technique has been developed at the CNET, Grenoble. This technique, combining laser cutting and, in particular, micropositioning controlled by interferometric vision, allows chip‐to‐substrate interconnection using a microlithography process and also chip insertion into a substrate with no physical contact with the active surfaces. Holes in MCM substrates are made by moving the 15 micron spot of a YAG laser. The chip‐to‐substrate gap of 100 ?m is filled with UV curable epoxy resin in order to bind the chip to the substrate. Chip insertion into these holes is controlled by interferometric vision yielding a planar alignment better than 0.1 µm between the active surfaces (pads) of both chip and substrate; interferometric vision enables simultaneous measurements on many chosen pads of less than 100 µm square in one imaging zone. After epoxy resin curing, this planar alignment remains in the order of 1 µm. The micropositioning by interferometric vision described above has been demonstrated in the fabrication of HDTV modules with 19 chips; on each MCM, six different types of chips from 1 mm2 to 32 mm2 have been micropositioned using interferometric vision. The feasibility of micropositioning optical fibres is also shown.

The duplex/disintegrator/ dissolver, which is a recent addition to the Silverson range of mixing equipment, is actually two machines combined into one. It has always been a feature of Silverson equipment that an individual machine could be adapted by rapidly‐interchangeable working heads. In the manufacture of paint, a change‐over of heads in the middle of the process has proved to be an advantage, and in certain cases a necessity. With this in view research resulted in the development of the duplex/ disintegrator/dissolver, which incorporates two separate heads on a single frame. The function of the upper head is the disintegration of large solids and the instantaneous wetting of difficult powders. It is virtually a separate mixing chamber into which all solids and powders are drawn, instantly dispersed or size reduced before being allowed to pass into the mix. The result is a significant increase in high‐velocity capability and reduction in processing time.

Hamilton Standard dates back to 1919 when the Standard Steel Propeller Company was formed in Pittsburgh, Pa. Standard Steel is best known for the propeller it designed and built for Charles Lindbergh's Spirit of St. Louis.

The purpose of this study is to explore the causal relationship between smart transportation technology innovation and green transportation efficiency.

A comprehensive framework is used in this paper to assess the level of green transportation efficiency in China based on the instrumental variable – generalized method of moments model, followed by an examination of the impact of innovation in smart transportation technology on green transportation efficiency. Additionally, their non-linear relationship is explored, as are their important moderating and mediating effects.

The findings indicate that, first, the efficiency of green transportation is significantly enhanced by innovation in smart transportation technology, which means that investing in such technologies contributes to improving green transportation efficiency. Second, in areas where green transportation efficiency is initially low, smart transportation technology innovation exerts a particularly potent influence in driving green transportation efficiency, which underscores the pivotal role of such innovation in bolstering efficiency when it is lacking. Third, the relationship between smart transportation technology innovation and green transportation efficiency is moderated by information and communication technology, and the influence of smart transportation technology innovation on green transportation efficiency is realized through an increase in energy efficiency and carbon emissions efficiency.

Advancing green transportation is essential in establishing a low-carbon trajectory within the transportation sector.

Aim of the present monograph is the economic analysis of the role of MNEs regarding globalisation and digital economy and in parallel there is a reference and examination of some legal aspects concerning MNEs, cyberspace and e‐commerce as the means of expression of the digital economy. The whole effort of the author is focused on the examination of various aspects of MNEs and their impact upon globalisation and vice versa and how and if we are moving towards a global digital economy.

This study aims to explore the influence of information presentation conditions on the flow experience of digital reading for high school students.

Firstly, a survey determines the preferred reading medium and the types of texts that high school students frequently read. Secondly, Experiment 1 focuses on the effects of the text type and reading medium on flow experience and reading comprehension. Finally, Experiment 2 addresses a narrative text presented on a smartphone, and discusses the influence of advance organizer, presentation format and page layout on flow experience and reading comprehension.

In digital reading, the narrative text has a stronger flow experience than explanatory text; the flow experience of reading narration on smartphones is more evident than on computers. The advance organizer and text combined with pictures are more conducive to a flow experience when a smartphone is used as a reading medium. From the perspective of reading comprehension, scrolling is more suitable for reading text combined with pictures and paging best suits pure text.

Through experimental methods, this study reveals the influence of information presentation conditions on the digital reading flow experience, which is a meaningful and innovative topic. The findings can provide more enlightenment and reference for the design and promotion of digital resources and digital reading by teenagers.

Drawing on virtual liminoid theory, the purpose of this paper is to examine factors that induce a multisensory flow experience in an e-shopping context through the use of augmented-reality interactive technology (ARIT).

To validate the research framework, a task-based laboratory study was performed. Participants were recruited through a snowball e-mail method and requested to freely and independently use ARIT for clothes fitting in the laboratory, after which they completed a questionnaire; 336 valid responses were received.

Empirical results revealed that three decorating psychological states (sense of body ownership, sense of ownership control, and self-explorative engagement) directly induced a multisensory flow experience. Furthermore, two multisensory factors (sense of self-location and haptic imagery) mediated the multisensory flow experience through these three decorating psychological states.

Consumers not only rely on generating self-display for optimal fitting in virtual avatar decoration in an e-shopping context but also concentrate more on expression and control of self-body. As consumers’ decorating psychological states require an ideal form of self-expression, a high degree of autonomy in exploring self-decoration options will create more value for consumers. Considering that expressing and controlling the self-body in addition to self-explorative engagement in virtual avatar decoration will trigger the flow experience in an e-shopping context, increasing the use of multisensory ARIT to trigger decorating psychological states in e-shopping contexts is highly recommended.

In this study, a relationship was constructed among virtual liminoid theory, flow theory, and multisensory technology, and an integrated conceptual framework was developed for the relationship between decorating psychological states and multisensory flow experience.