Application of CSK Encryption Algorithm in Video Synergic Command Systems

Video command and dispatch systems have become essential communication safeguard measures in circumstances of emergency rescue, epidemic prevention, and control command as, data security has become especially important. After meeting the requirements of voice and video dispatch, this paper proposes an end-to-end encryption method of multimedia information that introduces a multiple protection mechanism including selective encryption and selective integrity protection. The method has a network access authentication and service encryption workflow, which implants startup authentication and key distribution into the information control signaling procedure. This method constitutes a key pool with the three-dimensional Lorenz System, the four-dimensional Cellular Neural Network (CNN) System and the four-dimensional Chen System where the key source system and initial conditions are decided by the plaintext video frame itself. Then, this method optimizes the chaotic sequences to further enhance system security.

Improving Information Interaction between the Metallurgical Plant and Rail Operators

The current situation of development of the world economy presupposes intense competition in both external and internal markets. Under these conditions, it becomes more and more obvious that the growth of profits and, accordingly, further development of companies will be carried out not so much through expansion, but through improved service for customers, an increase in the range of goods and services offered, a better product quality and a decrease in production costs.The main role in optimisation of technological processes is currently played by digital transformation of production. The introduction of advanced information technologies is of great importance for all global companies, since the enhanced development of information systems results in improvement of business processes, better safety, and environmental friendliness.International studies show that the use of modern information technologies in transport industry is necessary to improve traffic safety, reduce environmental impact, increase the efficiency of the transportation process.The Russian mining and metallurgical sector, along with the oil and gas industry, makes a significant contribution to development of the country. Complex production technology, a large volume of traffic, hazardous and dangerous working conditions for personnel necessitate development of a digital environment to increase labour productivity and the volume of products.The objective of the research is to study the possibility of using information control and forecasting systems for solving technical, technological, and organisational problems of industrial railways of metallurgical plants.Based on comparative analysis, general scientific and mathematical research methods and the study of the role of information systems in digital transformation of production process, the authors suggest a methodology for creating a stochastic model for predicting the arrival of unit trains at an enterprise, and consider development trends in digital transformation of industrial transport.

Investigating the efficacy of the Egyptian Data Protection Law on Media Freedom: Journalists’ perceptions

The purpose of this study is to investigate the effectiveness of the Egyptian Personal Data Protection Law No. 151 for 2020, as well as its implications for journalistic practice. More specifically, the focal point of this study was to explore how Egyptian journalists interpret the law and its implication for press freedom in Egypt. The underpinning theoretical framework was informed by the Authoritarian school of thought. Questionnaires were distributed to 199 journalists from both independent and semi-governmental representing thirteen official newspapers of Egypt, while in-depth interviews were done with (3) Editors, (4) journalists, and (3) human rights lawyers. The finding of the study indicated that the government placed restrictions on journalists by using Data Protection Law relating to the media. That law is negatively impacting journalists and media houses. It was clear from the findings that the journalists see the law as an obstacle to media independence, as it allows the government to exercise greater information control through digital policy and puts rules of regulation against journalists.

TINGKAT KEPUASAN PEMUSTAKA DI DINAS PERPUSTAKAAN DAN KEARSIPAN KOTA SOLOK: ANALISIS LIBQUAL+TM

This study discusses the level of user satisfaction of the Solok City Library and Archives Service which was analyzed using Libqual+Tm. Libqual+Tm. Consists of three dimensions, namely affect of service, information control and library as place. The purpose of this study is to describe the level of user satisfaction at the Solok City Library and Archives Service. This research is a quantitative research with descriptive method. Data collection techniques through interviews and questionnaires. The research data was obtained from distributing questionnaires to the users of the Solok City Library and Archives Service as a population. Sampling from the study using incidental sampling technique and obtained a sample of 50 people. Based on the results of the study, the following conclusions were drawn: (1) based on the dimensions of the officer's performance in serving (affect of service) the users felt quite satisfied with the Adequacy Gap (AG) the dimension was positive with a score of 0.05 and the level of user satisfaction with the library was considered very satisfied. with the Superiority Gap (SG) is positive with a score of 0.52; (2) based on the dimensions of information quality and access to information (information control) the users are not satisfied with the Adequacy Gap (AG), the dimension is negative with a score of -0.20 and the level of user satisfaction with the library is considered very satisfied with the Superiority Gap (SG) is positive with score 0.25; (3) based on the dimensions of library facilities and infrastructure (library as place) the users are quite satisfied with the Adequacy Gap (AG) with a value dimension of 0.013 and the level of user satisfaction with the library is considered very satisfied with the Superiority Gap (SG) with a positive value with a score of 0.50 . Overall, the level of user satisfaction, the level of satisfaction of the users of the Library and Archives Service of Solok City, the users are quite satisfied with the average Adequacy Gap (AG) is positive with a score of 0.08 and the level of user satisfaction with the library is considered very satisfied with the average Superiority (SG). positive value with a score of 0.4.

Information Control for Creator Brand Management in Subscription-Based Crowdfunding

Digital content creators, such as podcasters, musicians, writers, and YouTubers, are increasingly using subscription-based crowdfunding (SBC) platforms to attract backers and obtain recurring funding from them. Unlike conventional crowdfunding, a hallmark of SBC is the recurring funding scheme structured as a creator-centered freemium model. Empowering creators to build their person brands, SBC platforms are providing creators with novel features to control the information that they share with their backers or fans or conceal from them. Based on a large-scale study on Patreon, an SBC platform, we show how creators can effectively leverage two types of information controls—earnings concealment and private postings—to build their person brands and thereby develop their backer base and fan engagement. Interestingly, we also find a reinforcing relationship in which the increases in backer base and fan engagement further stimulate creators to leverage information controls in their SBC campaigns to grow their person brands. In sum, although information controls are effective in aggregate to build person brands on SBCs, creators need to dynamically adjust the extent of use of information controls based on changes in their backer base and fan engagement.

Optimal sensor and actuator placement for feedback control of vortex shedding

We consider linear feedback control of the two-dimensional flow past a cylinder at low Reynolds numbers, with a particular focus on the optimal placement of a single sensor and a single actuator. To accommodate the high dimensionality of the flow, we compute its leading resolvent forcing and response modes to enable the design of $\mathcal {H}_2$ -optimal estimators and controllers. We then investigate three control problems: (i) optimal estimation (OE) in which we measure the flow at a single location and estimate the entire flow; (ii) full-state information control (FIC) in which we measure the entire flow but actuate at only one location; and (iii) the overall feedback control problem in which a single sensor is available for measurement and a single actuator is available for control. We characterize the performance of these control arrangements over a range of sensor and actuator placements and discuss implications for effective feedback control when using a single sensor and a single actuator. The optimal sensor and actuator placements found for the OE and FIC problems are also compared with those found for the overall feedback control problem over a range of Reynolds numbers. This comparison reveals the key factors and conflicting trade-offs that limit feedback control performance.

Approach to formalization of the intelligent information control systems based on the topos theory

The approach to formalization of complex organizational and technical systems based on the toposes theory is substantiated. The article presents a review of the literature on the formalization of knowledge. An integrated control system for technical complexes is considered. The description of blocks of intelligent information and control systems based on the toposes theory is developed. An algorithm for formalizing intelligent information and control systems and an example of constructing toposes and functors for the general case are presented. The conclusion is made about the possibility of applying the proposed approach to the formalization of the intelligent information and control systems in the process of formation of their appearance.

What matters most in acute care: an interview study with older people living with frailty

Background Healthcare outcome goals are central to person-centred acute care, however evidence among older people is scarce. Older people who are living with frailty have distinct requirements for healthcare delivery and have distinct risk for adverse outcomes from healthcare. There is insufficient evidence for whether those living with frailty also have distinct healthcare outcome goals. This study explored the nature of acute care outcome goals in people living with frailty. Methods Healthcare outcome goals were explored using semi-structured patient interviews. Participants aged over 65 with Clinical Frailty Score 5-8 (mild to very severe frailty) were recruited during their first 72 hours in a UK hospital. Purposive, maximum variation sampling was guided by lay partners from a Patient and Public Involvement Forum specialising in ageing-related research. Qualitative analysis used a blended approach based on framework and constant comparative methodologies for the identification of themes. Findings were validated through triangulation with participant, lay partner, and technical expert review. Results The 22 participants were aged 71 to 98 and had mild to very severe frailty. One quarter were living with dementia. Most participants had reflected on their situation and considered their outcome goals. Theme categories (and corresponding sub-categories) were ‘Autonomy’ (information, control, and security) and ‘Functioning’ (physical, psychosocial, and relief). A novel ‘security’ theme was identified, whereby participants sought to feel safe in their usual living place and with their health problems. Those living with milder frailty were concerned to maintain ability to support loved ones, while those living with most severe frailty were concerned about burdening others. Conclusions Outcome goals for acute care among older participants living with frailty were influenced by the insecurity of their situation and fear of deterioration. Patients may be supported to feel safe and in control through appropriate information provision and functional support.