Pressure Sensor Placement in Water Supply Network Based on Graph Neural Network Clustering Method

Pressure sensor placement is critical to system safety and operation optimization of water supply networks (WSNs). The majority of existing studies focuses on sensitivity or burst identification ability of monitoring systems based on certain specific operating conditions of WSNs, while nodal connectivity or long-term hydraulic fluctuation is not fully considered and analyzed. A new method of pressure sensor placement is proposed in this paper based on Graph Neural Networks. The method mainly consists of two steps: monitoring partition establishment and sensor placement. (1) Structural Deep Clustering Network algorithm is used for clustering analysis with the integration of complicated topological and hydraulic characteristics, and a WSN is divided into several monitoring partitions. (2) Then, sensor placement is carried out based on burst identification analysis, a quantitative metric named “indicator tensor” is developed to calculate hydraulic characteristics in time series, and the node with the maximum average partition perception rate is selected as the sensor in each monitoring partition. The results showed that the proposed method achieved a better monitoring scheme with more balanced distribution of sensors and higher coverage rate for pipe burst detection. This paper offers a new robust framework, which can be easily applied in the decision-making process of monitoring system establishment.

Human Versus Machine: A Comparison of Robo-Analyst and Traditional Research Analyst Investment Recommendations

We provide the first comprehensive analysis of the properties of investment recommendations generated by “Robo-Analysts,” which are human-analyst-assisted computer programs conducting automated research analysis. Our results indicate that Robo-Analyst recommendations differ from those produced by traditional “human” research analysts across several important dimensions. First, Robo-Analysts produce a more balanced distribution of buy, hold, and sell recommendations than do human analysts and are less likely to recommend “glamour” stocks and firms with prospective investment banking business. Second, automation allows Robo-Analysts to revise their recommendations more frequently than human analysts and incorporate information from complex periodic filings. Third, while Robo-Analysts’ recommendations exhibit weak short-window return reactions, they have long-term investment value. Specifically, portfolios formed based on the buy recommendations of Robo-Analysts significantly outperform those of human analysts. Overall, our results suggest that automation in the sell-side research industry can benefit investors.

Accessibility Analysis Model of College Students’ Employment Education Resources Based on Mobile Search Algorithm

This paper introduces the mobile search algorithm into the research of employment accessibility measurement. It not only proves the effectiveness of the method, but also analyzes the characteristics and formation mechanism of College Students’ employment accessibility in the research case, and puts forward the corresponding control strategies. The results show that the employment accessibility of college students is not evenly distributed, but presents an obvious center periphery pattern. This paper puts forward the planning means of the accessibility of College Students’ employment education resources to promote the balanced distribution of employment and population, the reform of the employment structure and the reasonable improvement of policy.

Risk Information in Non-Financial Disclosure

This paper aims to research the topics related to risk included in non-financial disclosure (NFD) of companies listed on the Warsaw Stock Exchange (WSE) and explore factors that influence the risk topics ratio in NFD. We applied a content analysis using topic modeling to discover latent risk topics in NFD. Next, with Ward’s clustering, we identified four groups of companies with a homogenous risk topic mixture. For causal analysis, to explain the differences in risk topics ratio, we used qualitative comparative analysis (QCA), which allowed us to obtain three paths (variable configurations) leading to the high ratio of risk topics in NFD. Our results suggest that companies disclosing risk information extensively in their NFDs concentrate almost solely on social risk matters. In contrast, companies talking briefly about environmental and social (E&S) risk prepare their NFDs with a more balanced distribution of E&S topics and their financial implication. In general, the companies’ exposure to E&S risk and the use of NFD standards and guidelines as well as the type of NFD impact the space dedicated to risk information. This paper contributes to academics and regulators, filling the gap about risk disclosure in the NFD, identifying the nature of corporate risk disclosures, and upgrading research about determinants of risk information in non-financial disclosure.

Radial force cancellation of bearingless brushless direct current motor using integrated winding configuration

A bearingless brushless direct current (BLDC) motor incorporates the function of magnetic bearings into a BLDC motor, making it a new type of high-performance motor. In this paper, the main motor windings are used to generate the radial force cancellation by injecting the required dc current, “integrated winding configuration”. The bearingless BLDC motor, direct current (DC) cancellation system model is established with the aid of (ANSYS/MAXWELL) software. The simulation results confirm that the rotor radial force is approximately zero and results from a balanced distribution of the magnetic flux density. The proposed DC excitation system is suitable to realize the rotor radial force cancellation in the bearingless BLDC motor. The simulation results of the proposed configuration show the approach of integrating winding configuration at different active pole positions to find the more efficient suspension performance and reduce the suspensions system current.

Assistive technology to support people with autism spectrum disorder in their autonomy and safety: A scoping review

BACKGROUND: Autism Spectrum Disorder (ASD) is a lifelong developmental disorder with increasing prevalence rates. People affected by ASD do often need support in various activities of daily living mainly provided by formal or informal caregivers. Assistive technology can help to increase autonomy and safety of people on the autism spectrum and thus decrease the burden of care. OBJECTIVE: This study aims to assess the state of the art of assistive technology (AT) that supports autonomy, self-reliance comfort and wellbeing of people with ASD or aiming to prevent dangerous situations or shutdowns, caused by stressful (environmental) situations. Another aim is to analyze the fields of application and type of the proposed technologies and to explore the evaluations conducted. METHODS: A scoping review was carried out where the databases MEDLINE, IEEE and ACM Digital Library were searched. The identified articles were grouped according to the objective of the technology – the supported area of life that is assisted by the proposed systems. Furthermore, the conducted evaluations of the ATs in the papers were analyzed. RESULTS: A total of 40 articles were included in this review with a balanced distribution in the different fields of application (Communication & Social Life; Daily Living Assistants; Safety & Security). Eighteen studies conducted an evaluation of the proposed technology with people with ASD, mainly testing the functionality of the systems. CONCLUSION: The proposed technologies support people in the autism spectrum according to the main outcomes and symptoms of ASD. Further research is needed to determine the usefulness and acceptance of the ATs.

Wasp controls oriented migration of endothelial cells to achieve functional vascular patterning

Endothelial cell migration and proliferation are essential for the establishment of a hierarchical organization of blood vessels and optimal distribution of blood. However, how these cellular processes are quantitatively coordinated to drive vascular network morphogenesis remains unknown. Here, using the zebrafish vasculature as a model system, we demonstrate that the balanced distribution of endothelial cells as well as the resulting regularity of vessel caliber, is a result of cell migration from veins towards arteries and cell proliferation in veins. We identify the Wiskott-Aldrich Syndrome protein (WASp) as an important molecular regulator of this process and show that loss of coordinated migration from veins to arteries upon wasb depletion results in aberrant vessel morphology and the formation of persistent arteriovenous shunts. We demonstrate that WASp achieves its function through the coordination of junctional actin assembly and PECAM1 recruitment and provide evidence that this is conserved in human. Overall, we demonstrate that functional vascular patterning in the zebrafish trunk is established through differential cell migration regulated by junctional actin, and that interruption of differential migration may represent a pathomechanism in vascular malformations.

Institutional mechanisms for overcoming the contradictions between globalization and localization

Information technology and the formation of the global market have led to such destructive a complication of the environment, which generates global imbalances, the negative effects of conflict, reducing the level of institutionalization of the world economy, narrowing the time horizon of rational choice. This stimulates the search for alternatives to excessive complexity and conflict of development. The way out of this situation is localization based on the reproduction of identities. The desired effect of localization is the institutional provision of a more balanced distribution of resources / benefits of globalization, on the one hand, and the distribution of its risks and uncertainties, on the other. Identity is seen as the extreme level of structure of society, which is responsible for the integrity of social behavior of subjects as elements of the system. The acceptable level of complexity of the global system is achieved in the ways of optimal localization. The basis of such localization is the recognition of the positive meaning of the identity factor, which generates different risk assessments, different time horizons of decision-making and different criteria for effective participation in globalization. The institutional mechanisms for the smart-localization of global development are economic sovereignty, institutional protection of the national producer, and social protection of the population. As a result, the global system has a choice of options to respond to challenges from uncertainty and threats. Globalization as unification and standardization is a more risky path because it limits variability and prevents the use of alternative cost estimation methods.

The year 2021 of the International Journal of Innovation – IJI

The International Journal of Innovation: IJI has been making some changes in recent years and, therefore, increasingly improving its content. These are transformations that would not be possible without the incessant collaboration of the entire IJI team. Ther are always tireless and impeccable. It would not be possible without all the articles submitted by the authors who believe and choose the IJI for their publications. It would not be possible either, without the reviewers who contribute with a lot of dedication, spending their time and knowledge on improving the articles to publish the IJI. We are immensely grateful to everyone! Special thanks to UNINOVE, who have always supported and continue to support IJI.At the end of 2021, we would like to present some data and information that enable readers, authors, and reviewers to follow the evolution of the IJI. We remain dedicated to raising the bar for the IJI. IJI is in the main databases: Dialnet, EBSCO, ERIHPLUS, Latindex, ProQuest, Redalyc, Redib, Spell, Web of Science and Zeitschriften Datenbank. It is classified in stratum B1 of the new QUALIS/CAPES proposal. It is published every four months (January-April; May-August; September-December) and accepts submissions in Portuguese, English, and Spanish, and published in English only.The International Journal of Innovation: IJI's mission is to serve as a vehicle for the periodic publication of scientific and technological works in innovation with a focus on emerging markets, which study individuals, organizations, ecosystems, and policies. The journal's topics of interest focusing on emerging markets are Innovative Entrepreneurship, Innovation and Learning, Innovation and Sustainability, Internationalization of Innovation, Innovation Systems, Emerging Themes of Innovation, and Digital Transformation. As we have already mentioned in another editorial comment, the IJI accepts scientific articles, technology articles, perspectives, and reviews, in addition to the editorial comment.We now present some data from IJI submissions for this year, 2021 (Table 1). Table 1Submissions to the IJIWorks submitted87Rejections65%Acceptance35% Eighty-seven works were submitted to the IJI, of which 65% were rejected and 35% were approved. With these numbers, we observe that rejection is still high. The rejection happens; most of the time, in the desk-reject the editors perform that. The reasons are: a) the submitted works are not following the scope of the IJI; b) the submitted works do not meet the minimum requirements for a publication and are not considered to proceed to a peer review and blind.When articles move to the stage of blind and peer review, the number of rejections gets smaller. Generally, works are rejected at this stage when the authors do not comply with the evaluators' recommendations. Our intention is, with the help of reviewers and authors, to increasingly improve the quality of submitted articles and increase the number of publications in the IJI.Submissions are from different countries. In this year of 2021, we had the following scenario (Table 2). Table 2Submissions to the IJI - by countryCountrySubmissionsBrazil59Argentina1Colombia1Cuba1Algeria2Indonesia2India3Jordan1Sri Lanka1Mexico1Malasia1Nigeria3Portugal2Saudi Arabia3Tunisia1Turkey1Ukraine1Vietnam2South Africa1TOTAL87 The most significant works submitted are from Brazilian authors, but with a balanced distribution among other countries. We are happy that the IJI is considered a possibility for authors from different countries on our continent and other continents. We want to increase the number of foreign submissions and their publications. We believe that this action is important for the academic community due to the diversity of contexts.The IJI counts on the valuable availability of the evaluators, who we know have to dedicate their precious time to help us improve our work. Our evaluation time is still high, up to 98 days. Some reasons impact this deadline: a) the reviewers are very demanding with researchers with little experience, causing back and forth in the assessments until they reach the expected quality for the article; b) holidays in the middle of the year and at the end of the year delay the evaluations a little; c) evaluators also divide their time with evaluations of academic events throughout the year. Due to these reasons, the publication of the works is also compromised. We took up to 122 days to publish the articles.Another interesting piece of information that we would like to share with our readers is the number of registered users of IJI. IJI has 1270 registered users, including authors, reviewers, and readers. In the last year of 2021, there were 534 new users. It makes us very happy, as the number of users has almost doubled. This action makes us hope to have more works submitted and, consequently, more quality works published.We aim to improve and make the IJI a journal with more impact in the academic and practical environment. With the help of everyone involved, we will improve the level of evaluations and significantly improve the published works. We want to bring relevant content that contributes to science in Brazil and other countries around the world.We thank you all for your help and support in this growing IJI journey!

METHODOLOGICAL GOING IS NEAR MANAGEMENT COMPETITIVE EDGES ON BASIS OF BALANCED OF MONEY STREAMS

Taking into account global development trends, integration and globalization processes, encourage the search for and further development of new products, services and management mechanisms. The economic-mathematical model of optimization of parameters of type NBIC-direction of competitive advantages is developed. The model is formed by the criterion of maximizing the net discounted cashflow. Based on the developed scientific and methodological approach, 4 types of NBIC-direction of competitive advantages of telecommunication enterprises are proposed, which are based on a combination of levels of innovative activity of the enterprise (from low to high) and complementarity of cashflow management (from low to high). As a result, the types of NBIC-direction of competitive advantages of the enterprise are proposed: adaptive-passive, adaptive-active, object-oriented; foresight-progressive. Complementary cashflow management involves a balanced distribution of cashflows by certain NBIC-components, namely: Nano-components (application of Nano-development stop rovide high-speed telecommunications), Bio-components (introduction of artificial intelligence in organizational culture, implementation of self-organization in the enterprise), Info-components (introduction of innovative standards of telecommunication activity, information software in business process management), Cogno-components (cognitive flexibility of top and middle managers, ability of personnel to complementarity, development of knowledge management system at enterprise, introduction of system of continuous training of all employees links). Thus, the combined use of these components provides an increase in cashflows and forms a modern platform for breakthrough competitive development of enterprises. Keywords: management, competitive advantage, cashflow, innovation, complementarity. JEL Classification B26, D61 Formulas: 14; fig.: 3; tabl.: 2; bibl.: 15.