Application Of Modern Technology Research Articles

Legal regulation of police organization and operations: European experience

The article examines the challenges of applying European experience in legal regulation of police organization and activities to Ukrainian legislation in the context of European integration processes. The author analyzes the current state of reforming the National Police of Ukraine, identifying key problems and challenges in implementing European standards in law enforcement activities. The paper discusses key aspects of adapting national legislation to European Union norms, particularly in human rights protection and public safety. Special attention is paid to analyzing the Law of Ukraine “On National Police” for compliance with international standards of police accountability and public oversight mechanisms. The author identifies main obstacles to effective implementation of European experience in Ukrainian police activities. These include insufficient regulation of public control mechanisms, lack of ratification of important international documents, the need to improve information and analytical support, and overcoming the “force-based” model in favor of a “service-based” approach. The article emphasizes the need to transform not only the legislative framework but also the mindset of police officers and society as a whole. It examines the implementation of new forms of policing, such as patrol police and dialogue police, as well as the application of modern technologies and analytical methods. Special attention is paid to anti-corruption issues in the law enforcement system and ensuring proper resource support for police activities, especially under martial law conditions. The author emphasizes the importance of further improving the regulatory framework to ensure effective protection of citizens’ rights and freedoms, increasing police transparency, and strengthening public interaction. The conclusions emphasize the need for a comprehensive approach to reforming Ukraine’s law enforcement system, considering European experience while taking into account national specificities and current challenges facing the country.

FORMATION OF A CONTROL SYSTEM IN AN AGRO-INDUSTRIAL ENTERPRISE

The article examines the importance of control in the management systems of agro-industrial enterprises, which is critical for ensuring their stability and effectiveness in a dynamic environment. The aim of the article is to analyze, systematize, generalize, and improve the theoretical and methodological foundations for the formation of a control system in an agro-industrial enterprise. It is determined that in the context of constant changes affecting agriculture, the control function becomes particularly significant as it helps adapt enterprises to new challenges and prevents negative consequences. The study presents the elements of the control system in agro-industrial enterprises, which include: planning (establishing goals, defining standards, and developing plans that serve as a basis for further monitoring and control), monitoring (constant collection and analysis of information on the execution of production processes), deviation analysis (evaluating performance results and comparing them with planned indicators), and feedback mechanisms (providing information on the effectiveness of production processes and their results, which is used to update plans and improve subsequent stages of control). Key control tools applicable at all stages of agro-industrial enterprises' activities are presented: planning and forecasting, result analysis and reporting, monitoring and information, auditing and inspections, quality control of products, budgeting, verification and compliance with environmental standards, personnel management, risk management, and technological control. It is found that timely application of control tools helps avoid losses and maintain high product quality. The purpose of control is justified as ensuring compliance of all production processes with established plans and standards to achieve economic efficiency, reduce costs, and improve product quality. The study allowed for the identification of the significance of integrating modern control methods and information technologies, which significantly enhance the effectiveness of management processes. It is noted that the application of modern technologies, such as ERP systems, IoT, and analytical platforms, significantly improves control over all stages of production and supply.

Development of Multimedia Teaching Content for Basketball in High School

Background and Aim: In the continuous development of information technology, the global education sector has been greatly impacted by the globalization of information, the application of modern information technology can be seen everywhere, which will profoundly change education. Modern information technology with network and multimedia technology as the core has been applied in physical education teaching in schools and universities. It is necessary to reform and upgrade the traditional education mode and develop multimedia teaching methods. Therefore, this research was to develop multimedia teaching content for basketball in high school, to promote the use of multimedia technology in physical education teaching. Materials and Methods: The survey included 516 students and 35 teachers from 10 high schools in Guangzhou, questionnaire was used to investigate the current situation of basketball teaching. Then, 7 teachers were interviewed to consult the problem solutions, and the indicator contents of multimedia teaching content for basketball in high school was constructed by literature review and content analysis. Through 19 Delphi experts’ consensus, multimedia teaching content for basketball in high school was established. Finally, 9 experts were invited to confirm the developed multimedia teaching content by the Connoisseurship method. In this research, mean, standard deviation and coefficient of variation were used to analyze the data. Results: After two rounds of Delphi method investigation, statistics, and modification, there are 92 indicators suitable for using multimedia in high school basketball teaching content. The content of high school multimedia basketball teaching is designed and includes the origin and development of basketball, sports injuries, and prevention, basic movement of a basketball player, dribble technique, one-handed marching shot, basic movement of a basketball player, basic basketball rules, shoot technique, pass technique, defend technique, breakthrough technique, advanced dribbling, steal technique, zone cooperation, pick and roll and defense, attacking match, fast break and defense, one-on-one check, offensive zone defense. Conclusion: The multimedia teaching content for basketball high school in Guangzhou was effective and appropriate, and can be integrated into the teaching plan.

CAPACITY BUILDING FOR CIVIL SERVANTS AND STATE MANAGEMENT ORGANIZATIONS OF VIETNAM'S SEAS AND ISLANDS

Vietnam's seas and islands greatly influence political and legal life for national, regional, and international development in history, present, and future. The article analyzes the need and importance of capacity building for civil servants and state management organizations on seas and islands in the context of developing the marine economy and protecting Vietnam's sea and island sovereignty. With a long coastline and a rich island system, Vietnam is facing many challenges from resource exploitation, and climate change to national security and defense issues. The article discusses the current status of the sea and island management capacity of civil servants, officials, and related organizations, including limitations in expertise, management skills, and the ability to respond to complex situations. The article also proposes strategic solutions to improve management capacity through training, professional development, enhanced international cooperation, and application of modern technology in sea and island management. The article emphasizes that improving the capacity of civil servants and state management organizations is the key to effectively implementing policies for sustainable marine economic development and protecting national maritime interests, making an important contribution to the comprehensive development of Vietnam.<p> </p><p><strong> Article visualizations:</strong></p><p><img src="/-counters-/soc/0712/a.php" alt="Hit counter" /></p>

Critical success factors and key performance indicators in the modernization of public services: empirical evidence from Greece

ABSTRACT Public administration faces challenges such as bureaucratic inefficiencies and reduced effectiveness, especially in the context of the Fourth Industrial Revolution. This paper focuses on Greece and suggests solutions inspired by the private sector to enhance efficiency. Key strategies include adopting knowledge management, e-government, and digital transformation to create a more dynamic public service. The study reveals a significant knowledge gap among civil servants regarding Critical Success Factors (CSFs) and Key Performance Indicators (KPIs), emphasizing further training. While only 17.77% of employees have attended relevant seminars, 75.68% recognize the positive impact of these tools. The study also highlights the potential of innovative methods like machine learning for improving public administration, offering greater accuracy and new analytical opportunities. Ultimately, it stresses the importance of creating a citizen-focused administration through strategic reforms and modern technological applications.

Preface: 3rd International Conference on Modern Medicine Technology and Clinical Science (MMTCS 2024)

We are glad to introduce you that the 2024 3rd International Conference on Modern Medicine Technology and Clinical Science (MMTCS 2024) was successfully held in Tokyo, Japan from August 17-18, 2024. This conference brought together innovative academics and industrial experts in the fields of modern medicine technology, pharmaceutical engineering, and clinical science and application to a common forum. The primary goal of the conference is to promote research and developmental activities, and another goal is to promote scientific information interchange between researchers, developers, engineers, students, and practitioners working all around the world. During the conference, the conference model was divided into three sessions, including oral presentations, keynote speeches, and Q & A discussion. All the papers have been processed to meet the requirements of international publication standard. We selected a bunch of high-quality papers and compiled them into proceedings after rigorously reviewing. We would like to express our sincere gratitude to the distinguished keynote speakers, as well as all the participants. We also want to thank the publisher for publishing the proceedings. May the readers could enjoy and gain some valuable knowledge from the MMTCS 2024 proceedings. We are expecting more and more experts and scholars from all over the world to join this international event next year. The Scientific Committee of MMTCS 2024 Tokyo, Japan

Giant magneto-optical Kerr effects governed by the quasi-bound states in the continuum

The magneto-optical Kerr effect (MOKE), as one of the magneto-optical effects, exhibits polarization change upon reflection that can be used to explore the internal information of magnetic materials with broad applications in modern information technology. However, typically, MOKE is quite weak due to the lower magneto-optical interaction. To tremendously enhance the MOKE, quasi-bound states in the continuum in a one-dimensional Ce- doped Y3Fe5O12 (CeYIG) film photonic crystal slabs (PCS) are proposed to improve the magneto-optical interaction in this work. A giant enhancement in the rotation angle and ellipticity of the longitudinal MOKE, which is about 93.4 and 136.8 times stronger than a pure uniform CeYIG, can be realized. Almost circularly polarized reflected beams with different chiralities are obtained with the CeYIG film. By tuning the geometric parameters of the PCS and the applied external magnetic field, dynamic control of polarization states of the reflected beams with different wavelengths can be realized. This magneto-optical metasurface provides a convenient way for the implementation of magneto-optical devices such as information memory devices, sensors, polarizers, and chiral devices.

The Application of Artificial Intelligence Technology in Mechanical Manufacturing and Automation

In order to achieve intelligent production and quality control, improve production efficiency and accuracy, the author proposes an application method of artificial intelligence technology in mechanical manufacturing and automation. The author aims to explore the specific application of artificial intelligence technology in the mechanical manufacturing industry and summarize the main advantages of automation technology. By analyzing these advantages, the aim is to provide targeted recommendations for future technological development. Meanwhile, the author aims to provide theoretical support for promoting the application of modern artificial intelligence technology and automation technology in the field of mechanical manufacturing. In the manufacturing process, intelligent production and quality control can be achieved, improving production efficiency and accuracy; In the field of automation, artificial intelligence technology can achieve intelligent control systems and autonomous decision-making, improving the flexibility and adaptability of production lines. Overall, the application of artificial intelligence technology has brought revolutionary changes to mechanical manufacturing, promoting the upgrading and development of the industry.

Current Understanding, Motivations, and Barriers Towards Implementing Sustainable Initiatives in the Hospitality Industry in the Age of Automation and Artificial Intelligence

Background:: Sustainability concerns are rapidly being acknowledged as a key concern for hospitality sectors worldwide. Sustainable initiatives immediately contribute to improved organizational performance in terms of utility consumption, waste management, and regulatory compliance, resulting in cost-effectiveness and competitive advantage through distinctiveness. Objective:: The purpose of the study is to analyze and summarize the motivations, indicators, and barriers towards applications of sustainable initiatives and modern technologies in the hospitality industry using the existing literature to develop a current understanding of the subject and know the way the current industry is thinking about it. Method:: This study is a combination of systematic and bibliometric review, where the systematic review was based on selected articles from reputed journal databases, and the bibliometric review was conducted using VOS viewer and web of science database for a period of 20 years (2002- 2022) Seven research questions were framed and answered for the systematic review. Result:: By describing the motivations, barriers, and impacts of implementing sustainability initiatives and cutting-edge technologies like AI and machine learning in the hospitality sector, the study helps practitioners and academics understand its present state for robust research. The current condition of such implantations in the hospitality sector is also discussed. Conclusion:: This study adds value by shedding light on the perspective of sustainability in the hospitality industry by considering the recommendations and practical advice for hotel management suggested in the existing literature about the application of current sustainability innovations and effective sustainability initiatives in hotel management.

Information technologies in the mining industry

In the mining industry, a company’s level of competitiveness is primarily determined by productivity and operational excellence. Digitalization is becoming an important factor for mining companies to remain competitive in the production market. It is obvious that modern technologies are opening up new directions for increasing productivity. Mining companies invest huge amounts of money in the development and application of modern information technologies, energy and drilling systems to increase the production level and improve environmental efficiency. The study aims to analyze advantages and disadvantages of modern information technologies implemented at mining enterprises and to assess the prospects for using them in training occupational safety experts. It was established that in training occupational safety specialists, it is advisable to use domestic software. Examples of software products used by Irkutsk National Research Technical University are provided.

Ecolinguistic Thinking on the Application of Information Technology in International Chinese Education

The existing education system cannot meet the Chinese learning needs of social groups well. There are certain problems in ecological, balanced and benign development. Since the new century, information technology has developed rapidly, and Internet technology has been widely used in cross-cultural education. Starting from the current development status of international Chinese education in the new era, this paper takes its healthy development as the guiding principle, explores the feasible ideas of promoting educational development through interdisciplinary studies from the perspective of ecolinguistics, proposes some development strategies for international Chinese education, strengthens the construction of international Chinese education response mechanism for emergencies, promotes the effective allocation of international Chinese education resources, and especially strengthens the in-depth application of modern information technology in all aspects and fields of international Chinese education.

Universities on the way to open science implementation: theoretical and practical context

Problem setting. Despite certain progressive movements of universities towards open science, currently one of the problems that hinders progress is the achievement of balance, systematicity, and consolidation in taking measures that contribute to the openness of scientific researches, to ensuring wide access to scientific inventions, discoveries and developments, contribute to expanding the possibility of their use for the advancement of knowledge and real changes in the world, and also to stimulation of innovations. Purpose of the research. The experience and practices of implementing open science in universities become an illustration to note as soon as possible the extent of their impact on achieving a greater level of transparency, integrity, reliability, reproducibility and accessibility of research discoveries in order to make certain social impacts for the benefit of social progress. Analysis of recent researches and publications. The scientific and theoretical understanding of the trends in the development of open science, the evolution of information systems, and electronic archives that support the availability of research data and discoveries is reflected in the works of T. Yaroshenko, S. Nazarovets, A. Lyubchych, L. Luparenko, P. Gaitanou, I. Andreou, J. Leitao, D. Pereira and others. Article`s main body. The article examines the new roles and impacts of open science, open data, and open access on the modernization of the scientific research field in the context of global challenges and the digital transformation of universities. It has been proven that an essential characteristic of the changes taking place under the influence of the modification of means and systems for the implementation of the open science principles is the mandatory online presentation of research data, facts recorded in research materials, which helps not only to acquire, but also to overcome the gap in the knowledge of interested persons, ensures the transparency of scientific researches. in the difficult conditions of martial law, remote work, the importance of implementing a system approach when calculating the main indicators of scientific and scientific and technical activity in universities is increasing, in connection with this, a new “Regulatory framework of open science” and metrics for evaluating scientific researchers are being developed, taking into account the principles of open science. Such important aspects of open science as storage, management and sharing of industry research data must comply with the FAIR guidelines (Findability, Accessibility, Interoperability, Reusability) and be based on the development and application of modern technologies. This, in our opinion, will allow: better integration of data on scientific activity in electronic information systems (IS); to consolidate research datasets and make them accessible and compatible; to support their storage, legal multiple use for scientific purposes; to make easier the search for scientific information in systems and on the Internet. Thanks to technology and the intensification of the universities movement towards open science, scientific cooperation and information exchange is expanding, and that benefits science and society; scientific knowledge becomes more open, more accessible for use; the processes of creation, assessment and circulation of scientific knowledge are accelerated; everyone’s right to participate in scientific progress and its benefits is more fully realized. Conclusions and prospects for the development. It was made the conclusion about the importance of the formation and use of the entire complex of network resources and platforms, international and national practices of the open science implementation in universities as an action plan agenda in the construction of modern ecosystem of scientific research activities of higher education institutions and in the support of the national scientific infrastructure in ensuring the availability of Ukrainian research with their further integration into world science.

A Guide to the Application of Modern Information Technology in Higher Vocational Colleges: A Case Study of China Chongqing Wanzhou Vocational Education Center

Background and Aims: With the development of information technology, flipped classrooms, micro-courses, MOOCs, and other educational means have been gradually applied to education and teaching, which not only changes the teaching methods of teachers but also promotes the transformation of teaching management means. This study aims to investigate and analyze the use of new ICT and provide suggestions for guiding the development and use of modern information technology in Chongqing Wanzhou Vocational Education Center. Methodology: Using random sampling, 90 respondents were selected from 30 students, teachers, and administrators of the Chongqing Vocational Education Center. Interviews were conducted according to the outline, and detailed interview answers were recorded with the consent of the respondents. After the interview, valid information was extracted for follow-up analysis. Results: It is found that there are some problems in the application of modern information technology in Chongqing Vocational Education Center. The use of modern information technology in schools is hampered by issues including passive teaching techniques, poorly designed curricula, and a lack of educational resources. These issues prevent talent development programs from being tailored to the needs of the job market and impede students' overall growth. These problems are further compounded by traditional teaching evaluation techniques, which impede the transition to a more objective and data-driven educational approach by lacking thorough student feedback. Conclusion: The Chongqing Vocational Education Center's use of contemporary information technology has exposed challenges like poor curriculum design, passive teaching approaches, and a lack of educational resources, which hinder talent development and impede students' overall development. Furthermore, by not offering comprehensive student feedback, traditional teaching evaluation methods exacerbate these issues and impede the shift to a more objective and data-driven educational paradigm.

Study of Nuclear Magnetic Resonance at Engineering and Medical Universities

The relevance of this study is related to the breadth of the nuclear magnetic resonance (NMR) method application in modern engineering and medical technologies. The purpose of the work is to adapt the material using the NMR method for students of medical, engineering and socio-humanitarian specialties and areas of study at different levels of presentation. The novelty of the research is as follows: the elements of knowledge for explaining the NMR method are highlighted; three levels of NMR explanation are justified and defined – classical and two quantum (qualitative and quantitative). The following methods have been used in the work: analysis and generalization of scientific, educational and methodological literature (on the content of the NMR method, nuclear spectroscopy and magnetic resonance imaging, the main professional educational programs of specialties and areas of study for undergraduate and graduate students of engineering and medical universities); designing the content of educational material; designing teaching methods and methods. Specific results include the development of three levels of NMR study. The classical level is based on the concepts of the magnetic induction vector of a circular current and its rotation around the magnetic induction of a constant magnetic field with a certain frequency, resonant absorption of radio signal energy by the core when their frequencies coincide. Quantum levels of study operate with the concepts of the orbital and magnetic spins of the atomic nucleus, the gyromagnetic ratio, Larmor precession, splitting of the energy levels of the atomic nucleus, the Bohr magnetone, and resonant absorption of energy by the nucleus. The classical level is recommended for students of social and humanitarian fields who do not study pure physics. The quantum qualitative level is recommended for students of specialties and fields of study at medical and engineering universities who do not study quantum physics as a special discipline. For students of engineering specialties related to quantum technologies, and medical specialties “Pharmacy” and “Dentistry”, undergraduates studying medical technology, a quantum quantitative level is recommended. The material of this study is of practical importance in teaching students of engineering and medical universities the physical basics of modern methods and technologies. Keywords: nuclear magnetic resonance, physics course, difficulty levels, engineering university, medical university, production technologies, medical technologies

Optical frequency comb significantly spanned to broadband by an optomechanical resonance

An optical frequency comb, as a spectrum made of discrete and equally spaced spectral lines, is a light source with essential applications in modern technology. Cavity optomechanical systems were found to be a feasible candidate for realizing an on-chip frequency comb with low repetition rate. However, it was difficult to increase the comb line numbers of this type of frequency combs because the mechanical oscillation amplitude of such a system, which determines the frequency comb bandwidth, cannot quickly increase with pump laser power. Here, we develop a new approach to generate a broadband optomechanical frequency comb by employing a different mechanism to enhance the mechanical oscillation. Two pump tones with their frequency difference matching the mechanical frequency will drive the system into a self-organized nonlinear resonance and thus tremendously transfer the energy to the mechanical resonator. As a result, more than 10,000 or even more comb lines become available under the pump laser power of the order of milliwatts. A unique feature of the self-organized resonance is the mechanical frequency locking so that, within a certain range of the frequency difference between two drive tones, the distance between comb teeth can be locked by the two drive tones and becomes independent of any change of pump power. This property guarantees a stable repetition rate of the generated frequency comb.

Optimizing pH sensor performance with PANI/PMMA composite thin films: Impedimetric and capacitive transduction approaches

The continuous search for novel materials to meet the requirements of modern technological applications has led to the widespread use of polyaniline (PANI) composites for sensing purposes. Although research has been carried out on both chemical sensors using PANI/polymer composites and chemical sensors with impedimetric/capacitive transduction using PANI composites, there is still a gap in the use of PANI/polymer composites in impedimetric and capacitive transduction platforms for pH sensing. In this study, the influence of composite thin films consisting of PANI and poly(methyl methacrylate) (PMMA) on the sensitivity and linearity of pH sensors based on electrochemical impedance and capacitance spectroscopy (EIS/ECS) was evaluated. The sensitivity and linearity of the devices showed a dependence on the polymer content. For PANI:PMMA equal to 30:70, the EIS and ECS sensitivity reached 12.6 ± 2.7 and 18.7 ± 4.9 %/pH, respectively, after reaching its minimum value for the 50:50 sample. Similarly, the linearity values for the 30:70 sample were 92.7 % and 99.8 % for EIS and ECS, respectively. We were able to encapsulate the PANI in the PMMA matrix, which improved the control of ion diffusion and analyte access to the active redox quinoid rings on the PANI. As a result, the saturation effect of the polymer was reduced. By adjusting the relative content of PANI and PMMA, the structure and properties of the composite can be controlled, directly affecting the sensor parameters. These materials have potential applications in sensors for various fields such as food, biomedical and environmental monitoring, with the ability to tailor their properties for optimal response.

Article Review: Relationship between Toxoplasmosis and other Diseases

Water provision is sensitive to climate change, and agricultural production and food supply are sensitive to water availability. Water scarcity affects food security and agricultural economic development through changes in agricultural production and changes in the composition of produced goods. Recent droughts also led to a decrease in the volume of water allocated to agriculture, which led to a decrease in total agricultural production and exports, and this has subsequent impacts on food security and economic development. The research aimed to measure the impact of water scarcity on agricultural economic development for the period 1990-2022. The research included three behavioral equations with three endogenous variables: the cultivated area, the value of agricultural output, and the value of gross domestic product, and four exogenous variables: the amount of available water, agricultural labor, and the value of agricultural investments and the income of other sectors, the studied model is called the sequential model, which was estimated using the Recursive method, using the ordinary least squares (OLS) method. The results indicated that increasing the amount of available water will lead to an increase in the cultivated areas by 141,129.2 dunums, and that increasing one thousand dunums of the cultivated area will increase agricultural output by 0.00821, and that agricultural labor is inversely proportional to agricultural output. It became clear that if the income of the rest of the sectors increased by one unit, the domestic product would increase by 0.1873. Water scarcity will reduce cultivated areas, which in turn will decrease agricultural output, causing the value of agricultural output to decrease and its contribution to the gross domestic product to decrease. In turn, it will have serious repercussions on agricultural economic development. Therefore, the research recommends the necessity of integrated water management and improving the efficiency of its use, as well as the application of modern technologies in agriculture, such as sprinkler irrigation, hydroponics, and redrawing crop compositions to ensure maximizing the net return per unit of water.

БАШТАЛГЫЧ КЛАССТЫН ОКУУЧУЛАРЫНДА ГРАФИКАЛЫК ОРГАНАЙЗЕРЛЕРДИ КОЛДОНУУ МЕНЕН ЭСЕПТӨӨЧҮ ОЙ ЖҮГҮРТҮҮНҮ ЖАНА ПРОГРАММАЛООНУ ҮЙРӨТҮҮНҮ ЖАКШЫРТУУ

Mathematical training is necessary to understand the principle of application of modern technology, its structure, scientific and technical concepts, and ideas. Mathematics is also important in a person's daily life. In modern scientific technology and the transformation of science into socially productive forces, mathematics remains the language of science and technology. The article proposes to teach and familiarize primary school students with the use of graphic organizers. In this application, you can prepare the most necessary tasks for elementary school students. Using graphic organizers is one of the best ways to improve children's interest, computational thinking, and learning to code. Familiarity with programming from elementary school is considered the most necessary so that students in the future can think independently and find the answer to a given problem.

Computational Investigation of Structural, Electronic and Optical Properties of Ternary Chalcogenide TLGaQ2 Monoclinic Compounds: a First Principle Study

Purpose: This paper aim to investigate and predict by simulation the impact of the substitution of Q-site atom (Q꞊S, Se) on the TIGaQ2 monoclinic compounds for the first time, along the three main polarizations of the incident wave directions [100], [010] and [001]. Theoretical Framework: This study focuses mainly on ternary chalcogenide compounds TlGaQ2 (Q= S, Se) from ABQ2 family to highlight the objective resources aimed at promising prospects offered for them. Design/Methodology/Approach: A series of ab-initio calculations based on the (PW+PP) method within the density functional theory DFT framework were carried out with CASTEP code for the simulation of their physical properties (structural, electronic-optical). The exchange correlation potential was treated within the generalized gradient approximation (GGA) implemented in the CASTEP code and expressed by the PBE functional. Findings: The equilibrium lattice parameters are in good agreement with the available experimental results. The calculated band structure shows that are direct bandgap semiconductor nature 1.92eV (1.41eV) for TlGaS2 and TlGaSe2 respectively with a great potential for photovoltaic solar cell absorber materials. A set of optical parameters were calculated including the complex dielectric function, the reflective index, reflectivity, the absorption coefficient and loss function. The optical properties obtained revealed very interesting optical properties exhibiting strong optical absorption in UV range up to (~2x105cm-1) for both compounds making them appropriate for photovoltaic solar-cell absorber materials. Furthermore, low reflectivity and energy loss function are shown within in the visible and ultraviolet energy range, allowing them to be promising materials in several optoelectronics applications likes photosensitive devices. Implications: All these findings results show a successful accurately prediction for chalcogenide materials behavior and will be helpful for future studies allowing a better understanding of their potential applications in modern photovoltaic technologies as well as within UV ranges for optoelectronics applications.

Analytical approach to structural chemistry origins of mechanical, acoustical and thermal properties.

Crystalline matters with periodically arranged atoms found wide applications in modern science and technology. To facilitate the design of new materials and the advancement of existing ones, accurate and efficient models without relying too much on known inputs for predicting the functionalities are essential. Here, we propose an analytical approach for such a purpose, with only the knowledge of the structural chemistry of crystals. Based on the electrostatic interaction between periodically arranged atoms, the 1st, 2nd and 3rd derivatives of interatomic potential, respectively, enable a prediction of ten kinds in total of mechanical, acoustical and thermal properties. Over a thousand measurements are collected from ∼500 literatures, this results in the symmetric mean percentage error (SMPE) within ±25% and the symmetric mean absolute percentage error (SMAPE) ranging from 22%∼74% across all properties predicted, which further enables a revelation of bond characteristics as the most important but implicit origin for functionalities.