Application Of Communication Technologies Research Articles

LiDAR-based SLAM pose estimation via GNSS graph optimization algorithm

LiDAR simultaneous localization and mapping (SLAM) is widely used in positioning and navigation. By illuminating a series of light spots on the surface of an object, orientation and pose information is obtained. However, improving the accuracy of the pose optimization algorithm without affecting the position information is difficult. Therefore, this study combines the graph optimization algorithm and the Global Navigation Satellite System (GNSS) to optimize the coordinates of the target object in the LiDAR SLAM pose. A GNSS pose estimation algorithm is proposed to show the relationship between positioning algorithms with and without GNSS pose optimization by analyzing the deviation of the distance, level, and height laser point cloud coordinates. The results show that with GNSS pose optimization, the deviations in distance, level, and height are 99% smaller than those without GNSS pose optimization. Furthermore, we demonstrate the effectiveness of the proposed graph optimization algorithm and GNSS optimization of LiDAR SLAM. Finally, this study highlights the directions for the application of wireless communication technology in the field of LiDAR SLAM.

Influence of Information and Communication Technology Application in Construction Jobsites: A Systematic Review and Bibliometric Analysis

Influence of Information and Communication Technology Application in Construction Jobsites: A Systematic Review and Bibliometric Analysis

Reflection on the Development of Chinese Cultural Psychology Through Short Video Communication

In the information age, with the rapid development of modern technology and the widespread application of communication technology, short videos have gradually become a new type of information dissemination tool and have had a profound impact on modern society. In recent years, short video communication has developed rapidly, and this mode of communication has also changed people's channels of receiving information and social habits. In order to further explore the impact of short video communication on the development of Chinese cultural psychology, the author used a literature review method and proposed their own thoughts on this research topic. Ultimately, the study found that in Chinese society, short video communication is conducive to the dissemination of social culture, can release people's stress and bring positive emotions, but also has certain negative effects. Therefore, people should jointly build a healthy short video environment, pay attention to the psychological and cultural impact brought by short video communication, and promote the healthy development of society.

Crystal structure and dielectric properties of Ln2Ti2SiO9 (Ln = Pr and Nd)

Low loss and high dielectric constant materials are essentially desired for wide varieties of applications in electronics and communication technology. Herein the structure and dielectric properties of two titanosilicates, Ln2Ti2SiO9, for Ln = Pr3+ and Nd3+ are reported. Both materials are isostructural and have layered structure with layers of [LnTi2SiO9]3- and Ln3+ ions. Electrical properties of both have been analyzed by using the temperature and frequency dependent permittivity, loss, conductivity and modulus data. At room temperature, appreciable relative permittivity (35 for Nd2Ti2SiO9 and 22 for Pr2Ti2SiO9 over the frequency range of 100 Hz to 5 MHz) and low dielectric loss (like 0.007–0.03 at 100 Hz and 10−4-10−3 at 1 MHz). Analysis of dc-conductivity data of both compounds indicate that the conduction in both materials is due to the correlated barrier hopping (CBH) of polarons. The relaxation peak of modulus spectra indicates more non-Debye like relaxation in Pr2Ti2SiO9 than that in Nd2Ti2SiO9, and that is possibly due to increased correlation in the dynamics of hopping polarons in Pr2Ti2SiO9.

Status of ICT Application/Library Automation in Selected Government Libraries in Delhi: A Study

The application of Information and Communication Technology (ICT) in libraries and the automation/computerisation of libraries play a vital role in providing timely and effective information services to users. This paper examines the status of libraries attached to select ministries of the Government of India. This study examines the status of automation, availability of e-resources and use of IT in the select libraries.

“No Countries for Municipalities?” – Old and New Faces of Centralisation in the Time of Crisis

Public service provision and administration have been transformed by digitalisation and the application of information and communication technologies (ICT). The article will focus mainly on the impact of these changes on regulatory issues. New approaches have been developed: “soft power” issues, like regulation and standards of public service provision, and central financial tools have become new elements of centralisation reforms, and the concentration of local public services and local administration has become a new issue, especially in Northern and Western Europe. Similarly, the “platformisation” of local services can be interpreted as a new form of centralisation. A “Northern” and “Southern/Eastern” approach to centralisation can be distinguished, and these are analysed in the article.

Healthcare System Sustainability Challenges in Nepal and Opportunities Offered by Alternative Healthcare Delivery Arrangements

The burden of chronic diseases in Nepal is increasing due to demographic and epidemiological transitions; alongside the persistent impact of communicable, maternal, newborn, and child health diseases, this critical situation acts as the precursor to rising healthcare costs. Nepal struggles to sustain its healthcare system amidst political instability, pandemics, natural disasters, and slow economic growth, particularly when healthcare funding is mainly dependent on out-of-pocket payments. Nepal requires lower-cost alternative healthcare delivery arrangements to provide high-value care while relieving economic sustainability pressures. Alternative healthcare delivery arrangements have a broad potential scope; they can involve strategic changes in how care is delivered and by whom, or they can also involve the application of information and communication technologies, e.g., telemedicine. This paper highlights the specific challenges to healthcare system sustainability in Nepal and the potential for high-value, lower-cost alternative healthcare delivery models to improve system performance in the longer term.

WEB-Based Empowerment of Individuals to Detect Health Status and Follow-Up Treatment

The high morbidity and mortality rate of the community is due to lack of knowledge in detecting health status and inability to make decisions to overcome health problems, causing delays in treatment. Providing education in the form of simulations and applying patents of a method of increasing independence for detecting health status and following up on appropriate treatment and patents of WEB site-based self-care methods is the application of information and communication technology in nursing services which is one solution to overcome this because it can optimize individual independence so that distance, time, place, and cost are not an obstacle to getting nursing services and achieving SDGs 3; ensuring a healthy life and improving the welfare of the population. Community service uses interview methods, health promotion about upper respiratory tract infections, hypertension, infections, rheumatism, dental caries, skin infections, refractive errors, pulmonary tuberculosis, pulp and pariapical tissue diseases and cataracts. Followed by simulations, assistance to all participants in using the WEB https://ariganursingselfcare.com/, observation and monitoring of the application of WEB to increase independence in detecting health status and following up on treatment. Community service was carried out from August to October 2023 in the community in the Medan Sunggal Health Center working area with a total of 173 people. The results showed 113 (65%) respondents were independent in detecting health status and following up on treatment, but there were still 60 (35%) respondents who needed continuous assistance in applying the WEB.

Cyber Security of Smart-Grid Frequency Control: A Review and Vulnerability Assessment Framework

Smart Grid involves application of Information and Communication Technology (ICT) for monitoring, protection, operation, and control of interconnected power systems under various scenarios. Smart Grid Control (SGC) is an important aspect that is constantly subjected to various vulnerabilities, threats, and attacks under central and distributed control architectures. Cyber Security of smart grid control, especially, Load Frequency Control (LFC) is an important issue that is addressed in this article. The state-of-the-art in cyber security and attacks on smart grid control and intensive literature review is discussed with a comprehensive list of references on LFC. The authors present a part of their own work carried out on a systematic Vulnerability Assessment (VA) framework that can be used to identify weak points in the LFC system. The proposed methodology is explained for Vulnerability Assessment of the standard 39-bus New England test system and the 96 bus reliability test system to illustrate the concept of cyber security and Vulnerability Assessment of smart grid LFC.

Application of Internet-of-Things Wireless Communication Technology in Agricultural Irrigation Management: A Review

The integration of Internet-of-Things technology with traditional agricultural irrigation is a crucial factor in the advancement of traditional agricultural irrigation towards smart irrigation. Despite the widespread use of conventional irrigation methods in many areas, they lead to the significant wastage of both human and water resources. Therefore, the development of energy-saving and efficient intelligent irrigation systems through the application of Internet-of-Things technology and wireless communication technology is the way forward. This paper summarizes the common wireless communication technologies in the agricultural Internet of Things: Fifth-generation, WiFi, ZigBee, LoRa, and NB-IoT. The research status of the above wireless communication technology in agricultural irrigation management is discussed, and the agricultural irrigation management example using the above wireless communication technology is also presented. The advantages and limitations of the application of the above wireless communication technology in agricultural irrigation management are sorted out. Finally, this paper analyzes the challenges of data security issues, data fusion problems, intelligent irrigation system costs, power and energy problems, and system equipment failures faced by the use of IoT wireless communication technology in agricultural irrigation management. This review aims to assist researchers and users in choosing the most suitable wireless communication technology for diverse applications.

Digital Competence in Foreign Language Textbooks: Comparative Analysis of Language Learning Systems in English, German and Spanish

The current article is aimed at examining the application of information and communication technologies in present-day foreign language learning systems in Bulgaria. It focuses on systems used in secondary education for teaching English, German and Spanish. The quantitative and qualitative analyses trace the establishment of a relationship between the development of digital competence and foreign language learning. The conclusions of this article point to a reciprocal and complementary relationship between the development of digital and language skills.

INFORMATION AND COMMUNICATION TECHNOLOGIES IN MODERN EDUCATION IN THE PROCESS OF FORMING LEADERSHIP COMPETENCE OF STUDENTS IN PPOFESSIONAL HIGHER EDUCATION INSTITUTIONS

The article considers the peculiarities of application and potential opportunities of information and communication technologies in the process of formation of leadership competence of students of professional higher education institutions at the present stage. It is indicated that in modern conditions information and communication technologies are an integral part of the education system in Ukraine. It is proved that they play a significant role in the formation of leadership competence of students, as they contribute to the disclosure and development of their creative and leadership potential, develop critical thinking, activate cognitive processes, form skills of independent activity, self-presentation, etc. In addition, it is found that the use of information and communication technologies in the educational process contributes to the development of social, communication and organisational skills, selfpresentation skills, etc. It has been found that information and communication technologies also contribute to the development of the personal potential of students, developing their confidence, responsibility, self-discipline, readiness for continuous self-development and self-improvement, perspective vision, willingness to take risks and make responsible decisions. It is noted that information and communication technologies play a significant role in the educational work with students of professional higher education institutions, as they make it possible to optimise the educational process and actively involve young people in it. It is noted that the effectiveness of the use of information and communication technologies for the formation of leadership competence in institutions of professional higher education largely depends on a clear understanding of the place they should occupy in the educational process. It is concluded that the use of information and communication technologies in the training and education of students creates all the prerequisites for the active formation of leadership competence, development of leadership abilities and qualities, and expansion of leadership potential.

Conceptual framework for Information and Communication Technology applications to enhance eco-efficiency

The quality of community decisions about the key characteristics of urban services depends on the level of involvement of local stakeholder groups. The identification of the environmental, economic and social impacts of investments to improve urban services is a critical aspect of the decision preparation phase. Assessment of the main stakeholder groups being affected by the impacts of urban services is required to understand what kind of problems they perceive. Based on their demand, different solutions can be provided to create an Information and Communication Technology (ICT) software system to facilitate environmental cooperations. The aim of this research is to propose an ICT system to support citizens’ active involvement in the transformation of the environment with access to essential information, and enable them to make more effective decisions about the investments. Most of the features of the proposed system have the potential to support eco-effective environmental policy implementations and form part of a sustainable policy toolkit. We explore the different interests and what functions should be provided to make access to information easier and more integrated. Our proposed conceptual framework would fulfill the requirements and gives practical examples how to increase eco-efficiency of products, technologies or investments in urban areas.

Determining the Factors that Influence e-Marketplace Selection from Seller’s Perspective Using a Binary Logistic Regression Model

The rapid development of information and communication technology influences changes in aspects of life in the economic sector. The application of information and communication technology supports business development. The development of the internet has become a technology that makes business activities such as marketing and sales easier. The growth of internet users in Indonesia reached 78% of the total population. E-commerce users in Indonesia reach 34.10% of all business people in Indonesia. One place to sell online is through e-marketplace. Many e-marketplaces require sellers to select e-marketplaces as a place to sell their products online. Each e-marketplace has different characteristics, so you must consider many factors when choosing an e-marketplace. In this research, it is known that two factors are formed based on factor analysis, namely the Product Quality Factor, the Service and Quality Factor, and the System Factor. In addition, the market selection model was determined using binary logistic regression analysis. The model formed in this research is the e-marketplace selection model Tokopedia, Shopee, and Lazada. Based on the results of the feasibility model using binary logistic regression, it produces an overall e-marketplace selection model with an accuracy level of 76.13%. This evaluation model can be used by sellers who want to choose a market that suits the products offered to increase profits.

Integration of information and communication technology in teaching English among in-service teachers

The widespread application of information and communications technology (ICT) in the field of education has drawn criticism. This investigation was to discover factors influencing English language teaching (ELT) in-service teachers’ integration of ICT. The sample consists of 1216 in-service teachers who teach English language in China. Four factors are found to influence ELT in-service teachers’ integration of ICT: attitudes, self-efficacy, digital competence, and digital tools use. The findings of the research utilizing the partial least squares structural equation modeling (PLS-SEM) approach demonstrated that all four criteria have a substantial impact on how ICT is integrated by ELT in-service teachers. By considering all the variables that affect ELT in-service instructors, this research offered helpful insights for an effective designs of English language teaching with ICT.

A study of the impact of the new digital divide on the ICT competences of rural and urban secondary school teachers in China

Teachers' competence in information and communication technology (ICT) applications can lead to a deeper integration of technology into the curriculum and improve the quality of education. However, its application and distribution issues could result in resource inequality and social injustice. Based on the ICT competency framework for teachers, the study investigates the variables influencing teachers' ICT competency. A prediction model of teachers' ICT competency is built using empirical data from secondary school teachers in Hebei Province, China, both in urban and rural settings. The study results show that a new digital divide does exist between urban and rural teachers and that differences in digital environment and digital literacy reflecting the new digital divide have different degrees of impact on teachers' ICT competence. Age and subject also affect teachers' ICT competence. In the new era, we can start with knowledge acquisition, knowledge deepening and knowledge creation to improve teachers' ICT competence.

Readiness of Semarang City Agricultural Extension Officers and Influential Factors in Implementing Cyber Extension

The main focus of information and communication technology applications in agriculture is to fulfill farmers' information needs. Cyber extension is not only for information seeking but also for disseminating agricultural technology innovations. This study aims to examine the readiness of agricultural extension workers in Semarang City to apply cyber extension in the era of digital extension and analyze the factors that influence their readiness to use cyber extension. The research was conducted from November to December 2022 at all Agricultural Extension Centers in Semarang City. A method of census was used in this study. Data were collected by interviews, observation, and documentation and analyzed descriptively using multiple linear regression. The results showed that the readiness of extension workers in Semarang City to apply cyber extension was high. Age, formal education level, training, experience, motivation of extension agent, and environmental factors have a simultaneous influence. Training, experience and motivation of extension agents have a partial influence, while age, formal education level, and environmental factors have no partial influence.

A Comprehensive Framework for Face age Synthesis, Voice Transformation, and Cartoon Generation

This paper presents a comprehensive framework addressing age-invariant face recognition (AIFR), face age synthesis (FAS), voice transformation, and avatar generation. Traditional AIFR techniques focus on minimizing age-related variations in face recognition but lack visual interpretability, while FAS methods aim to synthesize faces of different ages but often compromise recognition due to artifacts. To address these limitations, we propose MTLFace, a multi-task learning framework that simultaneously handles AIFR and FAS tasks. MTLFace employs attention-based feature decomposition to separate identity and age-related features spatially, improving interpretability. Additionally, we introduce an identity conditional module for fine-grained face age synthesis, enhancing the naturalness of synthesized faces. Unlike conventional methods that achieve age group-level synthesis, our identity conditional module enables identity-level synthesis, resulting in smoother age transitions and preserving individual facial characteristics. Leveraging high-quality synthesized faces, we enhance AIFR performance via selective fine-tuning, where synthesized faces are used to augment training data, leading to improved robustness against age variations. Furthermore, we contribute a large cross-age face dataset with annotations, facilitating research in age-related tasks. In addition to AIFR and FAS, we explore limitations in existing methodologies for voice transformation and propose advancements to improve speech quality and address current challenges. Lastly, we introduce a novel approach for cartoon face generation, utilizing component-based facial feature extraction and template matching to produce diverse and stylistic cartoon faces. Experimental results across various benchmarks demonstrate the effectiveness of our approaches in achieving superior performance in face recognition, voice transformation, and cartoon face generation, thereby contributing to the advancement of multimodal synthesis technologies with potential applications in entertainment, virtual communication, and assistive technologies

Application and Development Trend of 5G Communication Technology in Microelectronics

This study delves into the synergistic relationship between 5G communication technology and microelectronics, and how it shapes the future of the scientific and technological landscape. Through a comprehensive blend of theoretical analysis and empirical research, we examine how 5G technology propels the advancement of microelectronics, and vice versa. Our findings reveal a symbiotic relationship between the two, driving the overall progress of the electronic information industry. The distinctive features of 5G technology—high speed, minimal delay, and extensive connectivity—demand that microelectronic chips exhibit superior processing capabilities and energy efficiency. This, in turn, fuels the relentless innovation in microelectronics. Simultaneously, advancements in microelectronics bolster the performance and cost-effectiveness of 5G equipment, facilitating its widespread adoption. Furthermore, this paper explores the convergent trends in 5G communication and microelectronics, along with the challenges and strategies for their integrated growth. It offers insights into potential avenues for innovation and development in these intertwined domains.

Virtual-State Model for Analyzing Electro-Optical Modulation in Ring Resonators.

Ring resonators play a crucial role in optical communication and quantum technology applications. However, these devices lack a simple and intuitive theoretical model to describe their electro-optical modulation. When the resonance frequency is rapidly modulated, the filtering and modulation within a ring resonator become physically intertwined, making it difficult to analyze the complex physical processes involved. We address this by proposing an analytical solution for electro-optic ring modulators based on the concept of a "virtual state." This approach equates a lightwave passing through a dynamic ring modulator to one excited to a virtual state by a cumulative phase and then returning to the real state after exiting the static ring. Our model simplifies the independent analysis of the intertwined physical processes, enhancing its versatility in analyzing various incident signals and modulation formats. Experimental results, including resonant and detuning modulation, align with the numerical simulation of our model. Notably, our findings indicate that the dynamic modulation of the ring resonator under detuning driving approximates phase modulation.