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Cables are ubiquitous in electronic-based systems. Electromagnetic emission of cables and crosstalk between wires is an important issue in electromagnetic compatibility and is to be minimized in the design phase. To facilitate the design, models of different complexity and accuracy, for instance, circuit models or finite element (FE) simulations, are used. The purpose of this study is to compare transmission line parameters obtained by measurements and simulations.

Transmission line parameters were determined by means of measurements in the frequency and time domain and by FE simulations in the frequency domain and compared. Finally, a Spice simulation with lumped elements was performed.

The determination of the effective permittivity of insulated wires seems to be a key issue in comparing measurements and simulations.

A space decomposition technique for a guided wave on an infinite configuration with constant cross-section has been introduced, where an analytic representation in the direction of propagation is used, and the transversal fields are approximated by FEs.

The safety of high-speed rail operation environments is an important guarantee for the safe operation of high-speed rail. The operating environment of the high-speed rail is complex, and the main factors affecting the safety of high-speed rail operating environment include meteorological disasters, perimeter intrusion and external environmental hazards. The purpose of the paper is to elaborate on the current research status and team research progress on the perception of safety situation in high-speed rail operation environment and to propose directions for further research in the future.

In terms of the mechanism and spatio-temporal evolution law of the main influencing factors on the safety of high-speed rail operation environments, the research status is elaborated, and the latest research progress and achievements of the team are introduced. This paper elaborates on the research status and introduces the latest research progress and achievements of the team in terms of meteorological, perimeter and external environmental situation perception methods for high-speed rail operation.

Based on the technical route of “situational awareness evaluation warning active control,” a technical system for monitoring the safety of high-speed train operation environments has been formed. Relevant theoretical and technical research and application have been carried out around the impact of meteorological disasters, perimeter intrusion and the external environment on high-speed rail safety. These works strongly support the improvement of China’s railway environmental safety guarantee technology.

With the operation of CR450 high-speed trains with a speed of 400 km per hour and the application of high-speed train autonomous driving technology in the future, new and higher requirements have been put forward for the safety of high-speed rail operation environments. The following five aspects of work are urgently needed: (1) Research the single factor disaster mechanism of wind, rain, snow, lightning, etc. for high-speed railways with a speed of 400 kms per hour, and based on this, study the evolution characteristics of multiple safety factors and the correlation between the high-speed driving safety environment, revealing the coupling disaster mechanism of multiple influencing factors; (2) Research covers multi-source data fusion methods and associated features such as disaster monitoring data, meteorological information, route characteristics and terrain and landforms, studying the spatio-temporal evolution laws of meteorological disasters, perimeter intrusions and external environmental hazards; (3) In terms of meteorological disaster situation awareness, research high-precision prediction methods for meteorological information time series along high-speed rail lines and study the realization of small-scale real-time dynamic and accurate prediction of meteorological disasters along high-speed rail lines; (4) In terms of perimeter intrusion, research a multi-modal fusion perception method for typical scenarios of high-speed rail operation in all time, all weather and all coverage and combine artificial intelligence technology to achieve comprehensive and accurate perception of perimeter security risks along the high-speed rail line and (5) In terms of external environment, based on the existing general network framework for change detection, we will carry out research on change detection and algorithms in the surrounding environment of high-speed rail.

This paper aims to model a three-dimensional twisted geometry of a twisted pair studied in an electrostatic approximation using only two-dimensional (2D) finite elements.

The proposed method is based on the reformulation of the weak formulation of the electrostatics problem to deal with twisted geometries only in 2D.

The method is based on a change of coordinates and enables a faster computational time as well as a high accuracy.

The effectiveness of the adopted approach is demonstrated by studying different configurations related to the IEC 60851-5 standard defined for the measurement of the electrical properties of the insulation of the winding wires used in electrical machines.

The purpose of this paper reporting an exploratory pilot study is to examine how participant engagement in design thinking varies when playing and fixing (playfixing) three partially complete games (broken games).

The data for this study consist of transcripts of five playfixing sessions with a total of 16 participants. Each session focused on one of three games. The authors used Winn’s (2009) design-play-experience framework to analyze features of each game that might relate to differences in design thinking. Next, the authors coded each playfixing session’s transcript to identify patterns of design thinking. Finally, these findings were used to make conjectures about how design features and flaws might encourage particular forms of design thinking.

The findings indicate how playfixing tabletop games with varied levels of complexity, playability and rule definition lead to different patterns of design thinking.

This is a first step toward understanding how the constraints associated with various elements of broken games might direct participants toward desired modes of design thinking and more broadly, contributes to the literature on the educational uses of game making.

This study aims to extend the known design guidelines for the polymer-based fused filament fabrication (FFF) 3D printing process with the focus on function-integrated components, specifically optomechanical parts. The potential of this approach is demonstrated by manufacturing function-integrated optomechanics for a low-power solid-state laser system.

For the production of function-integrated additively manufactured optomechanics using the FFF process, essential components and subsystems have been identified for which no design guidelines are available. This includes guidelines for integrating elements, particularly optics, into a polymer structure as well as guidelines for printing functional threads and ball joints. Based on these results, combined with prior research, a function-integrated low-power solid-state laser optomechanic was fabricated via the FFF process, using a commercial 3D printer of the type Ultimaker 3. The laser system's performance was assessed and compared to a reference system that employed commercial optomechanics, additionally confirming the design guidelines derived from the study.

Based on the design goal of function integration, the existing design guidelines for the FFF process are systematically extended. This success is demonstrated by the fabrication of an integrated optomechanic for a solid-state laser system.

Based on these results, scientists and engineers will be able to use the FFF process more extensively and benefit from the possibilities of function-integrated manufacturing.

Extensive research has been published on additive manufacturing of optomechanics. However, this research often emphasizes only cost reduction and short-term availability of components by reprinting existing parts. This paper aims to explore the capabilities of additive manufacturing in the production of function-integrated components to reduce the number of individual parts required, thereby decreasing the workload for system assembly and leading to an innovative production process for optical systems. Consequently, where needed, it provides new design guidelines or extends existing ones and verifies them by means of test series.

The involvement of clients in service encounters and service development has become a central principle for contemporary health and social care organizations. However, in day-to-day work settings, the shift toward client involvement is still in progress. We examined how health and social care professionals, together with clients and managers, co-develop their conceptions of client involvement and search for practical ways in which to implement these in organizational service processes.

The empirical case of this study was a developmental intervention, the client involvement workshop, conducted in a Finnish municipal social and welfare center. The cultural-historical activity theory (CHAT) framework was used to analyze the development of client involvement ideas and the modes of interaction during the intervention.

Analysis of the collective discussion revealed that the conceptions of client involvement developed through two interconnected object-orientations: Enabling client involvement in service encounters and promoting client involvement in the service system. The predominant mode of interaction in the collective discussion was that of “coordination.” The clients' perspective and contributions were central aspects in the turning points from coordination to cooperation; professionals crossed organizational boundaries, and together with clients, constructed a new client involvement-based object. This suggests that client participation plays an important role in the development of services.

The CHAT-based examination of the modes of interaction clarifies the potential of co-developing client-involvement-based services and highlights the importance of clients' participation in co-development.

Vision, audition, olfactory, tactile and taste are five important senses that human uses to interact with the real world. As facing more and more complex environments, a sensing system is essential for intelligent robots with various types of sensors. To mimic human-like abilities, sensors similar to human perception capabilities are indispensable. However, most research only concentrated on analyzing literature on single-modal sensors and their robotics application.

This study presents a systematic review of five bioinspired senses, especially considering a brief introduction of multimodal sensing applications and predicting current trends and future directions of this field, which may have continuous enlightenments.

This review shows that bioinspired sensors can enable robots to better understand the environment, and multiple sensor combinations can support the robot’s ability to behave intelligently.

The review starts with a brief survey of the biological sensing mechanisms of the five senses, which are followed by their bioinspired electronic counterparts. Their applications in the robots are then reviewed as another emphasis, covering the main application scopes of localization and navigation, objection identification, dexterous manipulation, compliant interaction and so on. Finally, the trends, difficulties and challenges of this research were discussed to help guide future research on intelligent robot sensors.

An examination of the research literature suggests that no attempt has been made to examine learner autonomy development within female university-level English as a Foreign Language (EFL) students in the Kingdom of Saudi Arabia. Given that English has become the world’s predominant lingua franca for academia, business, and politics, the purpose of this paper, therefore, is to fill this gap in the literature.

This is a qualitative case study that aims to explore learner autonomy in vocabulary development.

The results showed that teachers are cognizant of the concept of learner autonomy. However, they are not all certain of the benefits of autonomous vocabulary learning. This study reveals how six adult learners’ levels of autonomy are highly influenced by their teachers’ practices. This study draws out suggestions for English language teachers who promote learner autonomy theory and practice. It also offers specific guidance, models, and adapted learning approaches of how to promote autonomy inside the classroom.

This study encountered several limitations. The first is time: the study took place over the course of two months in the Summer of 2016, when students were fully encumbered with schoolwork and social duties. The recruitment of participants during that time was a challenge. Some of the students who agreed to participate in the study were not fully engaged in the research. Additionally, the study faced difficulties with faculty commitment – one of the professors delayed the interview session multiple times and perceived some of the interview questions negatively. In addition, Dickinson’s (1993) characteristics of learner autonomy are largely related to the opportunities that are presented to the students by the teacher. It appears that Dickinson’s scale was meant to be used to identify students’ level of autonomy, particularly inside the classroom. However, because of some of the examples of activities pertaining to how they learned vocabulary outside the classroom, they were not related to classroom teaching. Also, the number of the participants is limited in this study.

A future study could be undertaken to measure and quantitatively analyze learners’ vocabulary development on a larger scale. Research could also be conducted using a pretest, an intervention, and a posttest to measure the effectiveness of learning vocabulary autonomously. In addition, other pedagogical approaches could be utilized to measure EFL students’ intrinsic motivation and autonomy, which play critical roles in learning. Allowing learners to self-select their preferred method of learning can help them to develop their vocabulary knowledge. The findings from this study reveal that learner autonomy plays a significant role in enhancing EFL students’ vocabulary development.

When students learn vocabulary autonomously, they are better able to source the lingua franca’s core pronunciation of a word and its spelling without the influence of the teacher’s cultural background. Given the magnitude of teachers’ workloads, they may lack the time for designing lessons that adequately meet the needs of diverse learners. Therefore, the practical way to ameliorate the problem of inadequate time is to provide them with methods (e.g. using strategies such as inquiry-based learning, problem-based learning, and project-based learning) that they can use to more readily foster learner autonomy.

This scientific article aims to evaluate the efficacy of the drug Doxorubicin for treating hepatocellular carcinoma (HCC) in Egypt. The study analyzes data from patients referred to a multi-disciplinary consultation at the National Cancer Institute, Cairo University. The study includes 40 intermediate-stage HCC patients who underwent treatment with either Doxorubicin-Lipiodol or Doxorubicin-loaded drug-eluting beads-trans-arterial chemoembolization (DEB-TACE).

Patients referred to a multi-disciplinary consultation at the National Cancer Institute, Cairo University with a possible diagnosis of HCC in the intermediate stage were eligible for the study.

The study finds that the plasma peak concentration of Doxorubicin is significantly higher in patients treated with Lipiodol compared to those treated with DEB-TACE. The median plasma peak concentration of patients treated with Lipiodol was significantly higher 424 (202.5–731) than the peak level of patients treated with beads 84.95 (26.6–156.5) with p-value = 0.036. However, there is no significant difference in other pharmacokinetic parameters between the two treatment groups. The research article also investigates the genetic polymorphisms in HCC patients treated with Doxorubicin-Lipiodol and Doxorubicin-loaded DEB-TACE. It identifies a significant association between the ABCB1 gene (C3435T) and the concentration of Doxorubicin in plasma. Patients with the CCand computed tomography (CT) genotypes of ABCB1 have higher concentrations of Doxorubicin compared to those with the TT genotype. Furthermore, the study examines the progression-free survival rates and tumour response in the two treatment groups. It demonstrates that DEB-TACE patients have a higher progression-free survival rate compared to cTACE patients. DEB-TACE also leads to better tumour regression.

The current study helps to increase the understanding of the genetic factors that may contribute to HCC susceptibility in the Egyptian population. However, it is essential to consider that genetic polymorphism is just one aspect of HCC risk, and other factors such as environment, lifestyle and viral infections also play crucial roles. Further research is needed to elucidate the complex interactions between genetic and environmental factors in HCC development among Egyptians.

The purpose of this study is to apply the concept of organizational ambidexterity as a conceptual lens to increase the understanding of tensions between exploitation (continuity) and exploration (change) in Agile software development (ASD) project teams, and particularly the balancing (ambidextrous) strategies utilized.

A conceptual framework was constructed from interdisciplinary sources on ambidexterity. A literature review of publications on ambidexterity in ASD was then performed, and the results from the selected publications were classified according to an extension of the conceptual framework.

Contextual ambidexterity in ASD is affected by the four basic coherent concepts: time, task, team and transition. The study found that most ambidextrous factors and strategies were task and team-related. In addition, a mixture of hard (performance) strategies and soft (social) strategies is needed in order for people/teams to (be able to) become ambidextrous.

To provide a better understanding of ASD, it is important to identify a broader set of ambidextrous factors and strategies that can impact ASD project teams. The expanded conceptual framework can serve as a basis for future empirical research and provide insights to practitioners on how to strengthen ambidexterity in ASD projects.

The contribution is of great importance for ASD research and practice, as ASD methods are a popular method for managing projects within ASD and in other nonsoftware organizations. In addition, as more and more organizations struggle to deal with rapidly changing environments, interest in the phenomena of paradoxical tensions and the strategy (ambidexterity) to deal with these tensions increase.