bluuebunny/crossref_metadata_2025 huggingface dataset:
Rezension von: Schubart, Gertrud, Die schönsten Sagen aus dem Rothenburger Land
Authors: Wunder Gerd , Schubart Gertrud
Published: May 2024

Gertrud Schubart: Die schönsten Sagen aus dem Rothenburger Land. Kirchberg: Wettin 1971. 56 S.
Rezension von: Hommel, Wilhelm, Nachruf für Dr. Eduard Krüger
Authors: Wunder Gerd , Hommel Wilhelm
Published: May 2024

Wilhelm Hommel: Nachruf für Dr. Eduard Krüger (gest. 17.6.1967). Selbstverlag 1971. 40 S. Ill.
Держави Центральної Азії в контексті конкуренції світових акторів після початку широкомасштабного вторгнення Росії в Україну
Authors: Александров О. , Борділовська О. , Веселовський А. , Гриценко А. , Каракуц О. , Орлик В. , Паламарчук М. , Ус І. , Ярмоленко В.
Published: May 2024

В аналітичній доповіді проаналізовано основні стратегічні виклики для держав Центральної Азії після початку широкомасштабного вторгнення Росії в Україну, особливості трансформації системного впливу РФ та КНР в регіоні, стратегічні інтереси США в регіоні, можливості Європейського Союзу як геостратегічної альтернативи для цих держав, стан та перспективи диверсифікації стратегічних відносин між центральноазійськими державами та впливовими позарегіональними акторами. Досліджено стан та перспективи відносин між державами Центральної Азії та Україною. Для широкого кола користувачів.
Reframing Professional Identity: Professional Development Framework for Learning/Educational Designers
Authors: Pingo Zablon , Laudari Suman , Sankey Michael
Published: May 2024

This paper develops the conversation focused on what professional competencies and skills learning design professionals (LDs) have or need to develop to meet contemporary learning design professional demands in organisations and learning institutions. In this paper, we used the lens of lifelong learning theory and skill analytics approach to develop a professional framework for learning design professionals. As people transition into thirdspace professional spaces like educational or learning design, a professional development framework can act as a reflective tool to support workplace learning and identity framing to look backward and forward to achieve personal and professional goals. A framework like this can potentially guide and support learning design teams and individuals to reflect on what skills they possess and identify gaps to plan how to address skill gaps through professional development, workplace learning and networking opportunities
Revisiting “Glass Ceilings and Sticky Floors”: A Commentary on Navigating Gender in Higher Education
Authors: Dahlvig Jolyn , Dickinson Kulick Natalie , Greenhalgh Amy
Published: May 2024

This commentary revisits Dahlvig and Longman's (2020) "Addressing Glass Ceilings and Sticky Floors" to update the global status of women's leadership in higher education. Additionally, the authors advocate for expanding the inclusive leadership conversation beyond the historic male/female binary. Institutional barriers persist that hinder minoritized leadership, therefore using intersectionality and an inclusive view of gender in framing current problems and solutions will benefit the path forward.
Developing a seismic bridge reliability model to enhance its resilience: a study on reinforced concrete bridges in Algeria
Authors: Abdellaoui Mohammed , Badaoui Mohamed , Bensaibi Mahmoud , Said Koriga
Published: May 2024

Bridges are critical points in transportation networks because they are exposed to various natural and human-caused hazards, leading to partial or complete service interruption. Bridges must maintain their societal functions, especially after events such as earthquakes, because they play a vital role in emergency response, relief operations and damage mitigation. This paper proposes an improved model for evaluating the reliability of reinforced concrete bridges before seismic events, to improve their resilience to earthquakes and enable effective preparedness for disasters. In the first phase of this study, a group of important factors that affect the reliability of the bridge were identified, based on the opinions of experts and a comprehensive reading of the current literature in this field, These factors include the current physical condition of the bridge, the seismic hazard, the seismic design, the importance of the bridge in terms of traffic, and the geometry of the bridges. In the second stage, the Analytical Hierarchy Process (AHP) was used to determine the relative impact of each factor compared to other factors.The third stage is to calculate the bridge's seismic reliability index (RSI) by combining the weights of these factors with the score for each case.Three classifications of seismic reliability were proposed for low, medium and high. The model has been applied to many reinforced concrete bridges in earthquake-prone areas in Algeria. The model provides valuable insights for evaluating bridge reliability and can help decision makers and officials make proactive decisions that will improve seismic resilience. Finally, the results obtained are summarized in this paper.
Saúde bucal em pessoas com deficiência visual
Authors: Carvalho Filho Anselmo Souza , Teixeira Gabriel Bastos
Published: May 2024

A deficiência visual é considerada uma limitação sensorial, capaz de atingir e anular a capacidade de enxergar, abrangendo assim vários graus da visão, onde permite inúmeras classificações. O deficiente visual tornou-se protagonista a respeito da sua própria saúde bucal, onde a sua motivação é considerada de extrema relevância para alcançar níveis de conscientização e educação que de fato causem impacto positivo na sua saúde e na qualidade de sua vida. As percepções sobre a manutenção a saúde bucal questionadas pelos deficientes visuais sinalizam para a necessidade de implantação de um programa sobre uma educação em saúde bucal. A busca pelos serviços de saúde ainda é uma demanda muito grande e nem sempre todos conseguem ter acesso a estes serviços. A maior dificuldade é para os deficientes visuais, pois o acesso está relacionado de acordo com as necessidades que apresentam, sendo um dos componentes principais para a obtenção da qualidade ao cuidado com a higiene bucal. As maiores necessidades odontológicas do deficiente visual estão relacionadas com as suas dificuldades de aprendizado e de manutenção de uma higiene bucal adequada. Assim, o cuidado com a saúde bucal, precisa ser uma prática constante em todas as relações do processo de trabalho do profissional de saúde com os cidadãos usuários que buscam atendimento para cuidar da higiene bucal, seja pela rede pública ou particular. Então, o presente trabalho tem como objetivo descrever a importância do trabalho odontológico com deficiente visual, qual a sua função em relação ao cuidado e o que podem fazer para ajudar este público.
Methods for Testing the Significance of Differences in Biological Testing
Authors: Jiang Baoqin , Feng Dejie , Ren Jing , An Chanchan , Liu Yan , Wei Qinqin , Zheng Huanhuan , Chen Xin , Jin Hongyan
Published: May 2024

Bioassays play a crucial role in the research of new drugs and vaccines. The significance test for differences is the most commonly used statistical method in the analysis of biometric data. The methods for testing the significance of differences in paired samples can be broadly divided into two categories. The first category is that the data population follows a normal distribution, and the commonly used method is paired t-test; The second type requires the use of nonparametric testing methods for statistical testing when parameter testing methods are not applicable. Commonly used methods include Wilcoxon matched signature level testing. This article introduces the basic principles and prerequisites of two types of testing methods, and in establishing a detection method for trypsin residue, takes the significance of the difference between the results of three enzyme-linked immunosorbent assay (ELISA) tests at 36℃ and the results at 37℃ for two batches of raw materials as an example to explain the correct use of the two testing methods. Correctly applying significance testing can establish the conclusions of experiments or investigations on a more scientific and reliable basis, avoiding simplification and absolutization.
Why Phage Can't be the End of Superbug on its Own?
Authors: Zhong Yaoyang
Published: May 2024

The emergence of ultra-resistant superbug due to the widespread use and even abuse of antibiotics has caused people to start dying from common wound infections. It has become a global consensus to crack the superbug problem as soon as possible. In this battle, a virus called "phage" discovered a century ago has become a research hotspot again because of its characteristic of engulfing bacteria. Especially, the emergence of "phage display" technology has made the targeted evolution of viruses possible, and phage has become a potential weapon against superbug. By reviewing the discovery history of phage, dissecting the relationship between phage and bacteria as well as the molecular mechanism of interaction, this paper found that phage and bacteria are not in a simple parasitic relationship with each other, and that bacteria will evolve various active and passive defense mechanisms against phage infection, while phage will further evolve their responses against the various defense mechanisms of bacteria. In this invasion-defense-counter-defense arms race, phage and bacteria interact with each other and coexist in co-evolution. Phage not only indirectly affects human health by influencing the pathogenicity of bacteria, but also directly affects human health by interacting with human immune cells. The specificity and replication variability of phage, the large number of phage-bacteria, the complexity of phage-bacteria interactions and their unknown evolutionary mechanisms, and the insecurity of phage entry into the human body also contribute to the fact that the efficacy of phagotherapy, which has a century-long history, has always been uncertain and not reliable for large-scale application. Therefore, this study concludes that phage cannot defeat superbug alone, providing a new way of thinking about how humans can finally overcome the superbug problem.
The Application of Artificial Intelligence in Healthcare
Authors: Chen Xiaoyi
Published: May 2024

Science and technology have been deeply developing in the direction of data processing, deep learning, artificial intelligence, etc. The speed of technological change is profoundly affecting people's way of life, causing a strong impact and challenge to the traditional philosophy of science and technology. With the advancement of artificial intelligence strategies and capital markets in various countries, artificial intelligence companies, artificial intelligence products and artificial intelligence services continue to emerge. Humans have also made great progress in developing various AI applications, especially in the field of medicine. Ai technology has fundamentally changed the healthcare sector, exponentially increasing doctors' ability to deliver better and faster results than ever before.
Building a Smart Ecological Education in the AI Era
Authors: Zhou Zhenjing
Published: May 2024

With the rapid development of artificial intelligence technology, technology is empowering transform teaching in the field of education. as smart education models become widespread, the concept of smart ecological education is receiving increased attention. This paper explores how AI is transforming the education ecosystem from the perspectives of student learning, teacher research, school management, home-school collaboration, and teaching evaluation. By examining AI's impact on education from before class, in-class, and post-class perspectives, we reflect on how to construct a smart ecological system.
Discussion on the Attributes of Natural Biodegradant in Killing and Inhibiting Viruses
Authors: Gao Fenglin , Zhang Xinyuan , Zhang Jingzhu
Published: May 2024

Natural biodegradant, found and named by the author's scientific research team, refer to a type of substance with special molecular structure, and its molecular weight ranging from 50 to 80,000. Compared to that found in animal bodies, this substance contained in plant organism is stable and can be easily processed. It exhibits low solubility in water and organic solvents, making it less absorbable by human body. Through processing with sophisticated bioengineering technology, the human absorptivity for the derivatives of this substance can reach up to 90%. In the human food chain, the toxicity of this substance is lower than that of sucrose. The natural biodegradant and its attributes discussed in this paper refer to these derivatives. Both in-vitro scientific validation and empirical human trials have confirmed its effective and broad-spectrum capacity in killing and inhibiting viruses and bacteria, and in-vitro tests have shown that its killing rate and inhibition rate for nine types of viruses are both above 99%. Specifically, when the test sample is diluted at a ratio of 1:50000 (with the test sample containing 1% natural biodegradant), the actual concentration of 1:5000000 exhibits a significant inhibitory effect on HBV DNA; when the test sample is diluted at a ratio of 1:5000, the actual concentration of 1:500000 shows an inhibition rate of 70.30% on HBV DNA. This is an extremely rare finding of a virus-inhibiting substance in the food chain. Its effects on viruses include but are not limited to the types mentioned in this paper, and no type of virus that it cannot inhibit has been found up to now. It has been verified by practical human trials that it can alleviate disease-caused pain and itch within 3 seconds, subside the fever caused by various diseases (including cancer) within 72 hours, and completely cure many difficult-to-treat and complicate diseases, such as pharyngitis, gastroenteritis, colitis, rhinitis, myocarditis, pericarditis, prostatitis, hepatitis, and nephritis. Natural biodegradant exhibits extremely strong activity. When the concentration of aqueous solution exceeds 1.5%, it can polymerize all the H2O in solution within one year; when the concentration reaches 10%, the polymerization reaction will be completed within 24 hours; the higher the concentration is, the shorter the polymerization reaction lasts. With such superlatively strong biological attributes, it shows the repairing effect on mutated (cancer) cells, damaged cells, immune-deficient cells, nerve cells and endocrine cells when acting on human bodies.
Progress in the Preparation and Application of Fucoxanthin from Algae
Authors: Pang Yunlong , Song Wentao , Fan Lin
Published: May 2024

This article comprehensively reviews the progress in the preparation and application of fucoxanthin derived from marine algae. Through four dimensions, including biological sources and chemical structure, production processes, structural identification methods, physiological functions, and applications, this paper delves into the advancements in fucoxanthin preparation and application, drawing on experimental data and clinical applications from relevant research. Additionally, technical issues and challenges in current fucoxanthin research are highlighted, encompassing aspects such as increased production, purity enhancement, and structural modification. Finally, the paper summarizes the research findings, outlining the future research directions and prospects for the progress in fucoxanthin preparation and application, and offers some suggestions for future fucoxanthin research.
The Application of Quality Management in Chip Production
Authors: Xu Minrui
Published: May 2024

This article explores the importance and specific applications of quality management in the chip production process. As a core link in high-tech manufacturing, chip production has extremely strict requirements for product quality. Quality management ensures the stability of the chip production process and the reliability of product quality through a series of methods and means. This article first introduces the basic process of chip production and the key links of quality control, and then analyzes in detail the core elements of quality management, including quality control, quality assurance, and quality improvement. In addition, the article also analyzes the main problems faced in chip production quality management through practical cases. Finally, the specific application of quality management in chip production was elaborated, including process control, design and process defects, supply chain management, process technology innovation, and prevention and resolution of personnel management issues. And the future development trend of chip production quality management was discussed. Through this study, the aim is to provide effective quality management strategies and practical methods for chip production enterprises, and promote the sustainable and healthy development of the chip industry.
Common Problems and Countermeasures in the Work of Digestive Endoscopy
Authors: Zhai Wenguo
Published: May 2024

In the realm of gastrointestinal endoscopy, precision and efficiency stand as pivotal metrics in assessing the success of technological applications. However, a multitude of factors influence the realization of these key indicators, encompassing product design, equipment maintenance, proficiency of operators, and the stability of product performance. Addressing these issues, this discourse comprehensively analyzes common challenges encountered in gastrointestinal endoscopic procedures and posits corresponding strategies for resolution. Misalignment between product design and operational requisites emerges as a primary impediment leading to operational difficulties. Not only does this compromise the accuracy of examinations, but it also significantly heightens procedural intricacies. Subsequently, inadequate equipment maintenance directly impacts image quality, thereby affecting diagnostic precision. Moreover, the lack of operator proficiency stands as a significant factor contributing to diminished procedural efficiency. Lastly, the instability of product performance exacerbates failure rates, impeding not only the examination process but also potentially amplifying patient discomfort and risk. Confronted with these challenges, the present discourse presents corresponding strategies for resolution. Optimizing product design to ensure alignment with clinical operational needs can effectively enhance usability and examination accuracy. Elevating the standard of equipment maintenance to ensure optimal functioning is paramount for improving image quality. Strengthening operator training not only enhances procedural efficiency but also mitigates equipment damage resulting from improper operation. Finally, through technological innovation and quality control, stabilizing product performance and reducing failure rates emerge as vital measures to ensure examination safety and enhance patient satisfaction.
Digital Transformation in Real Estate Services: Development and Implementation of the Housing Selection Platform
Authors: Wang Siyu , Wang Haishan
Published: May 2024

This article provides a detailed elaboration on the design and development of the Housing Selection Platform, an online platform that responds to current real estate market demands and integrates modern technologies. The paper comprehensively introduces the platform's system modules, including online housing rental, buying and selling, as well as related shopping mall experiences. The platform adopts a front-end/back-end separation and microservices architecture, making development efficient and the system easy to maintain. It also emphasizes performance optimization through technologies like Redis and has adopted the latest authentication and authorization measures for security. The article widely discusses the implementation of the system and the technical challenges faced, providing solutions such as API gateways and event-driven architectures. The conclusion revisits key learned points and successful experiences, predicting that the introduction of innovative technologies like artificial intelligence and machine learning will drive the platform's development. The importance of user experience throughout the developmental process is emphasized, looking forward to how the Housing Selection Platform will continue to lead the industry in the future.
Research on Claim Clause of New FIDIC Contract Condition based on Industry Status
Authors: Kang Zijian , Ma Danxiang
Published: May 2024

The global economy has begun to recover after the coronavirus epidemic has basically ended, and Chinese and international construction projects have gradually resumed work. Due to the impact of the novel coronavirus epidemic, engineering projects in China and internationally have been extremely difficult to carry out in the past few years, and many projects are facing the dilemma of missing deadlines. In this case, the contractor should actively carry out salvage measures such as claim for construction period to ensure the continued implementation of the project, and should take the initiative to submit claims and carry out normal claim procedures according to the contract. By analyzing the claim conditions of the new version of FIDIC contract, this paper analyzes the relevant problems faced by contractors, puts forward corresponding countermeasures, and provides a new idea of FIDIC claim for Chinese contractors going to the world.
Security of the Secp256k1 Elliptic Curve used in the Bitcoin Blockchain
Authors:   Professor, School of Computing, SASTRA University, Thanjavur., Balasubramanian Dr. Kannan
Published: May 2024

The article delves into the intricate characteristics and security properties of the secp256k1 elliptic curve used for the generation of addresses in the Bitcoin blockchain. The Bitcoin blockchain is a decentralized digital ledger that records all transactions made with Bitcoin cryptocurrency. In this work, the secp256k1 elliptic curve and its parameters and the method of generating private and public keys using random numbers are described. While the private key allows for the signing of transactions to spend Bitcoin, the corresponding public key and address enable others to verify transactions and send funds to that specific address on the blockchain, ensuring security, authenticity, and privacy in the decentralized network. The attacks on the use of secp256k1 for generating the bitcoin addresses like the Brute force attack, twist attack, fault attacks, and side channel attacks in the implementation of the elliptic curve are discussed. By maintaining the security and integrity of secp256k1, we can ensure that cryptographic operations, such as digital signatures and key exchanges, remain uncompromised. If the curve's security were compromised, malicious users could potentially derive private keys from public keys, leading to unauthorized transactions, double-spending, or other malicious activities. The security of implementation can be enhanced by ensuring cryptographic libraries and software implementations that utilize secp256k1 undergo thorough testing and validation to ensure correct and secure operations. The important attacks on blockchain technology like the 51% attack, Sybil attack, Double Spending attack, and Smart Contract vulnerabilities are discussed. Through a comprehensive exploration, readers will gain insights into why this particular elliptic curve was chosen for use in Bitcoin's cryptographic protocols, highlighting its role in ensuring the robustness and integrity of the blockchain ecosystem.
ASSESSMENT OF CRITICAL CARE NURSES’ ADHERENCE TO ETHICAL CODES AND ITS RELATION TO SPIRITUAL WELL-BEING AND MORAL SENSITIVITY
Authors: ADEEL . , ASGHAR A , FIAZ F , LATIF A , HAIDER I , BIBI S , QASIR .
Published: May 2024

Background: Adherence to ethical standards is a vital component of nursing care and is influenced by various circumstances. Identifying such aspects can improve ethical performance. Objective: This study examined critical care nurses' compliance with ethical rules and their impact on spiritual well-being (SWB) and moral sensitivity (MS). Study Design: The research was primarily descriptive and correlational. Setting: The study was conducted at Bahria Town International Hospital Lahore. Duration of Study: This study was conducted from May 1, 2023, to December 10, 2023. Methods: Data were compiled on the individuals' demographics and three essential questionnaires: the adherence to ethical norms questionnaire, the moral sensitivity questionnaire (MSQ), and the spiritual well-being scale (SWBS). The study included 51 nurses, with the bulk of participants being female (76.4%), single (64.7%), without kids (72.54%), possessing a diploma in nursing (84.3%), and graduates of public universities (66.9%). Results: The mean score of adherence to ethical codes was 64.06±7.11, indicating a satisfactory level of commitment to ethical principles. The mean SWB score was 91.67±10.54, with 74.5% (n=38) falling into the moderate category. The mean scores for existential and religious health were 44.85±6.73 and 47.72±5.53, respectively. The mean MS score was 135.63±10.53, with most subjects falling into the moderate category. Multivariate regression analysis revealed a significant correlation between SWB, MS, and ethical code adherence among nurses (P<0.05).Conclusion: Critical care nurses demonstrated a solid commitment to ethical standards. MS and SWB also improved their commitment to ethical rules. Nursing managers may use these findings to promote MS and SWB among nurses, leading to better ethical performance.
On The 4-Cyclic Refined Neutrosophic Solutions of The Diophantine Equation X^n=1 and m-Cyclic Refined Neutrosophic Modulo Integers
Authors:   University of Chinese Academy of Sciences, CAS, Mathematics Department, Beijing, China, Lee Lee ,   Abu Dhabi University, Abu Dhabi, UAE,   Mutah University, Faculty of Science, Jordan,   Mutah University, Faculty of Science, Jordan, Sarkis Maretta , Rawashdeh Ammar , Khaldi Ahmad
Published: May 2024

The ring of n-cyclic refined neutrosophic integers is a logical extension of the integer ring Z based on a special multiplication operation defined between the indeterminacy algebraic elements. In this paper, we provide a full description of the 4-cyclic refined neutrosophic integer roots of unity, where we prove that for odd values of n we get exactly two different solutions. For even values of n, we get exactly 15 different solutions. On the other hand, we characterize the m-cyclic refined neutrosophic modulo integers rings and present many of their algebraic properties based on neutrosophic homomorphisms and substructures.
A low-latency and energy-efficient 4-bit absolute value detector for brain-machine interface applications
Authors: Zhao Yiwei
Published: May 2024

This research article aims to develop a 4-bit absolute value detector, balancing speed and power efficiency, with potential applications in Brain-Machine Interface (BMI) systems. The detector outputs a binary signal, indicating whether the absolute value of the input surpasses a predefined threshold. The design integrates two primary modules: an absolute value calculator and a comparator. Initially, the study focuses on enhancing the architecture of a multiplexer-based adder for absolute value calculation and selecting an efficient comparator structure, emphasizing least significant bit comparison. Further, the implementation of logic gates using Complementary Metal-Oxide-Semiconductor (CMOS) technology is elaborated. The research concludes by assessing the minimum delay achievable in the critical path, quantified at 74.22 units, and investigating strategies to minimize energy consumption. This is achieved by adjusting gate dimensions and supply voltage, aiming for a delay 1.5 times the minimum. The energy expenditure of the critical path is extrapolated to estimate the overall circuit consumption. The findings demonstrate that, at 1.5 times the minimal delay, the circuit achieves a maximum energy savings of 62.8% with a supply voltage of 0.815V.
Research on sensing recognition principle and motion control of industrial robot
Authors: Xu Kaiwen
Published: May 2024

In recent years, with the continuous development of science and technology and the pursuit of production efficiency, robots are more and more widely used in industrial production. Robot is a new production tool in industrial production. This paper mainly studies the sensing and recognition technology of industrial robots and their motion control principle. The purpose of this paper is to discuss the main research directions and important design methods of industrial robots. The research methods used in this paper are literature analysis, case analysis, and review. The research object is the sensing and recognition function of the industrial robot itself, as well as its motion and control parts. The main tools used in the study are various literature database websites, and the experimental data are also extracted from the papers in the database. This paper finds that the key research of industrial robots today is to make their recognition function powerful and strive to optimize their motion ability.
Target tracking techniques for multi-robot systems: Review on the state-of-the-art
Authors: Qin Henan
Published: May 2024

The field of target tracking has long been a focal point in robotics research, gaining particular prominence in the realm of multi-robot systems. Target tracking has extensive applications in diverse areas such as surveillance, search and rescue operations, and environmental detection. This paper presents an exhaustive review of the latest target tracking methodologies employed in multi-robot systems, with an emphasis on scenarios featuring both abundant and limited information availability. The review particularly addresses the challenges posed by conditions including target occlusion (partial or total), uncertainties in robots positional data, and limitations in sensory and communicative functions. This scholarly piece synthesizes literature sourced from IEEE and Springer publications, spanning the period from 2019 to 2023. This temporal scope ensures a focus on contemporary and pertinent research outcomes. The findings of this paper indicate a significant evolution in the sophistication of target tracking techniques, particularly in complex operational scenarios. These advancements signify a notable maturation in the capabilities of multi-robot systems to efficiently handle intricate and varied tasks.
Current status and future trends in lower limb exoskeleton rehabilitation robots
Authors: Liu Huaqing
Published: May 2024

The aging population in China is steadily increasing, accompanied by a rising incidence of stroke. Therefore, for patients experiencing lower limb movement disorders due to factors such as spinal cord injuries and brain damage, the use of lower limb exoskeleton rehabilitation robots is crucial for precise rehabilitation in the early stages of injury. There is an urgent need to optimize rehabilitation strategies during the recovery process. Worn on the lower limbs, exoskeleton robots facilitate rehabilitation by engaging in specific training, establishing new synapses in the patients brain, and ultimately achieving therapeutic goals. In recent years, various companies, universities, and research institutions worldwide, including Japans HAL, Israels ReWalk, DaiAi Robotics, and Shenzhen MaiBu Robotics, have made significant advancements. These products contribute to the convenience of users daily lives and rehabilitation training. This paper provides a comprehensive review of the current state of research on lower limb exoskeleton robots, incorporating domestic and international literature, and offers insights into future development trends.
Development and analysis of a practical absorption air conditioning system employing waste heat recovered from vehicle exhaust
Authors: Liu Zirui
Published: May 2024

The air conditioning and transportation sectors comprise the largest shares of energy consumption in Hong Kong, offering a key perspective on tackling the citys 2050 carbon neutrality goal. Traditional air conditioning systems in vehicles operate on a compression refrigeration cycle, expending a large amount of shaft power to compress the refrigerant in a gaseous state. In this project, an absorption refrigeration system that operates on waste thermal energy from vehicle exhaust was developed and analysed. The refrigerant is absorbed in water and pressurised using a solution pump, saving on shaft power compared to traditional air conditioning systems that compress the refrigerant in vapour form: in contrast to the process of gas compression, no work is done when the pressure of a liquid is increased because it is incompressible. A mathematical model was developed to simulate the systems working process under different conditions. Parameters such as the desired indoor temperature, the temperature of vehicle exhaust, and low- and high-ammonia concentration solution concentrations were manipulated to find the optimal combination that yielded the highest coefficient of performance. An experimental facility was then designed and constructed to verify the efficacy of the absorption air conditioning system. Findings from the theoretical and experimental investigations show that the system produces cooling at reasonable efficiency, bearing feasibility to be installed in vehicles to reduce energy consumption and minimise carbon emissions.
Research progress of small size seed metering devices
Authors: Qiao Leqing , Haimudula Aierken , Yue Fan
Published: May 2024

Due to the characteristics of small size seeds, such as light weight, easy to jam, difficult to control the seeding, resulting in its low degree of mechanical automation, so the in-depth development of small size seed metering device is urgent. Firstly, we analyses the research status, research hotspots and research progress. Secondly,we specifically presents seed metering device classification, monitoring system and test method. The results indicate that (1) Before 2013, the number of Chinese research was relatively similar to that of international numbers, while after 2013, the growth rate of Chinese research results accelerated, and the international showed an overall fluctuating increase. (2) Keyword co-occurrence network reveals that the research broadly focuses on equipment performance evaluation and analysis, equipment experimentation and optimization, application and evaluation of new technologies & methods, and specific effects of external conditions on seeding equipment, etc. (3) Each of the six kinds seed metering devices prevailing on the market has its own application range. (4) Monitoring system and test method are important testing tool for the development of seed metering device refinement. This research can provide guidance and reference for designing new types of seed metering device and help budding researchers to quickly understand the research history.
Research on preparation and performance tests of the fire retardant coatings for special functionalized wires and cables
Authors: Liu Zhipeng , Li Bing , Huang Kaimin , Lu Yuqian , Yu Shaokui , An Zhengji , Ma Zehui , Ye Junlong , Chen Yingjie
Published: May 2024

This study aimed to produce a new potential intumescent flame retardant system through the addition of titanium dioxide and alumina-silica fiber based on optimizing the traditional ammonium polyphosphate (APP) / melamine (MEL) / pentaerythritol (PER) intumescent flame retardant formula. The flame retardant capacity and the physical properties were fully analyzed and discussed. The produced flame retardant coating could resist the rapid rise in 1100 of high flame temperature, whereas 40 exceeded the national standards. Thus, the produced flame retardant coating in this study could be potentially further applied to the cables and wires that are frequently needed in petroleum, telecommunication, military, tunnel, and electric uses.
Efeitos hemodinâmicos e respiratórios em ovinos submetidos a quatro modalidades de ventilação e anestesiados com isoflurano ou propofol
Authors: Rosa Luara da , De Souza Amarildo Oliveira Lyra , Regalin Bruna Ditzel , Regalin Doughlas , Comassetto Felipe , Cancellier Carla Dezan de Lorenzi , Ronchi Samuel Jorge , Oleskovicz Nilson
Published: May 2024

O objetivo deste estudo foi avaliar diferentes modalidades ventilatórias em ovinos anestesiados com isoflurano ou propofol. Foram utilizadas 12 ovelhas, adultas, mestiças, com 12 meses de idade, pesando 32±5 kg, comprovadamente hígidas. Após instrumentação com os animais conscientes em decúbito lateral direito, foi administrado morfina (0,3 mg kg-1) e detomidina (20 mcg kg-1) como MPA. Foram induzidas à anestesia geral com propofol (4 mg kg-1) e intubadas. Neste momento, foram alocadas em dois grupos: PG (n=6), manutenção com infusão contínua de propofol (0,5 mg kg min-1), e IG (n=6) com anestesia inalatória com isoflurano (1,3 V%). Todas foram mantidas por 30 minutos em cada modalidade ventilatória: ventilação espontânea (VE), ventilação mecânica ciclada a volume (VV), ventilação mecânica ciclada a pressão (VP) e ventilação mecânica ciclada a pressão com PEEP (VPP). A FC e o IC foram maiores em IG e já o IRVS foi maior em PG. Os valores de hemoglobina, fração de shunt intrapulmonar e o volume corrente foram maiores no PG. Os animais apresentaram alcalose metabólica em ambos os grupos. O isoflurano promoveu maior hipotensão, diminuição da complacência pulmonar, aumento da resistência das vias aéreas, menores valores de PaO2 e maiores valores de PaCO2 em todas as modalidades ventilatórias. A VPP promoveu maior complacência pulmonar e índice de oxigenação, maiores valores de PaO2 e menores valores de shunt intrapulmonar. Conclui-se que o propofol e a VPP promoveram maior estabilidade hemodinâmica em ovelhas.
Kinh tế Việt Nam giai đoạn 2018 - 2023: Thực trạng và triển vọng
Authors: Đinh Văn Sơn , Phan Thế Công , Lê Thị Dung
Published: May 2024

Giai đoạn từ 2018 đến 2023, nền kinh tế Việt Nam đã trải qua một số thách thức và đồng thời có những bước tiến vững chắc. Tuy Việt Nam phải đối mặt với một số thách thức như biến đổi khí hậu, nợ công và nợ xấu trong các ngân hàng, cũng như việc cải thiện quản lý tài chính công, nhưng tăng trưởng GDP của Việt Nam đã duy trì ở mức cao, thường ở khoảng 6-7% mỗi năm. Việt Nam tiếp tục thu hút lượng lớn vốn đầu tư nước ngoài, đặc biệt là từ các nhà đầu tư lớn đến từ Trung Quốc, Hàn Quốc và Nhật Bản. Các khu công nghiệp và khu kinh tế cụ thể đã được phát triển để thu hút đầu tư. Sự tăng trưởng của kinh tế đã tạo ra nhiều cơ hội việc làm mới và cải thiện mức sống cho người dân. Công nghiệp và xuất khẩu tiếp tục là những lĩnh vực chủ chốt, đặc biệt là trong các ngành như dệt may, điện tử và nông nghiệp. Việt Nam đã cũng đã và đang tiếp tục thúc đẩy các biện pháp cải cách thể chế và thuế để tạo điều kiện thuận lợi cho doanh nghiệp và tăng cường sự cạnh tranh. Bài viết sẽ tổng quan bối cảnh chung trong và ngoài nước giai đoạn 2018 - 2023, đánh giá tình hình kinh tế Việt Nam giai đoạn này. Tiếp theo, phân tích xu hướng, triển vọng và kiến nghị các giải pháp thúc đẩy tăng trưởng kinh tế Việt Nam đến năm 2030.
Nghiên cứu ảnh hưởng của các nhân tố tới ý định chuyển đổi số của các doanh nghiệp xuất bản tại Việt Nam
Authors: Phạm Vũ Luận , Hoàng Cao Cường , Chử Bá Quyết
Published: May 2024

Nghiên cứu này nhằm xác định các yếu tố và mức độ ảnh hưởng của các yếu tố đến ý định chuyển đổi số (CĐS) của các doanh nghiệp xuất bản tại Việt Nam. Mô hình các yếu tố ảnh hưởng đến ý định CĐS được phát triển gồm ba nhóm nhân tố: nhận thức hữu ích CĐS, nhận thức rủi ro CĐS và năng lực CĐS của đơn vị xuất bản. Qua điều tra 397 phiếu trả lời và sử dụng SPSS 22 để kiểm tra độ tin cậy thang đo các biến số cấu thành ba nhóm nhân tố ảnh hưởng đến ý định CĐS của các doanh nghiệp xuất bản, nghiên cứu đã xác định được nhân tố năng lực CĐS và nhận thức hữu ích CĐS có ảnh hưởng tích cực đến ý định CĐS, trong khi nhận thức rủi ro CĐS có tác động tiêu cực đến ý định CĐS. Nghiên cứu này giúp các doanh nghiệp xuất bản và các bên liên quan trong hoạt động xuất bản có sự chuẩn bị sẵn sàng cho CĐS. Ngoài ra, nghiên cứu có giá trị hữu ích đối với các cơ quan nhà nước trong xây dựng và thuận lợi hóa tiến trình CĐS trong hoạt động xuất bản hiện nay tại Việt Nam.
Design and implementation of novel 6G cellular communication architecture using 3D modelling in real environments
Authors: Al-Shareeda Mahmood A. , Al-Phryggy Muhammad Majid , Al-Kashani Ali Abd Khadim , Al-Jaber Haider Adnan , Al-Moussawi Jabbar Deyaa
Published: May 2024

Academics and businesses alike are presently fixated on the Sixth Generation (6G) network, which is seen as the telecom industry’s next major game-changer. The 6G architecture has not been finalized and is not yet being used in commercial settings. Research and development for 6G is still in its early stages. Several important features and technologies have surfaced as possible 6G system underpinnings, while development is still in its early phases. To facilitate the next generation of 3D modeling applications, this article suggests a new 6G cellular communication architecture. Aware of 6G’s revolutionary potential, we investigate its fundamental features to build a collaborative, real-time 3D modeling environment with unmatched capabilities. The goal of this project is to design the architecture for the next generation of communications systems. This will incorporate elements from two existing designs: the decoupled RAN design, which improves security and smooth data sorting, and the high-level design, which incorporates numerous protocols inside the antenna for stringent protection. Lastly, we delve into the possible sector-specific disruptions caused by this design and examine its wider implications for the future of 3D modeling. We hope that by introducing this new 6G architecture, we may inspire more study and development towards a day when 6G technology completely changes the game when it comes to 3D modeling.
SHOCkwave lithotripsy for patients with peripheral arterial disease: the SHOCC study
Authors:   SHOCC Investigators, Lopez-Pena G , Musto L , Finch SL , Brown MJ , Davies R , Sohrabi S , Rees O , Lakshminarayan R , Saratzis A
Published: May 2024

Objective: To assess the 6-month patency and clinical outcomes after endovascular treatment of lower limb atherosclerotic lesions in patients with peripheral arterial disease presenting with severe claudication or chronic limb threatening ischaemia (CLTI) using intravascular lithotripsy (IVL). Methods: A prospective multicentre cohort study was carried out in eight centres in the UK. Consecutive patients with CLTI or lifestyle-limiting claudication treated with IVL as a primary vessel preparation based on operator’s preference were included. Follow-up occurred at discharge, 30 days and 6 months with clinical and duplex assessments. A subset of patients underwent computed tomographic angiographic (CTA) lesion analysis pre-/post-IVL to assess plaque consistency/morphology using three-dimensional reconstruction of the CTA. Results: Overall, 91 patients (mean age 73 years, 72% male; 81% with CLTI) were enrolled in the study between September 2021 and March 2023 (21 took part in the CTA plaque imaging substudy). All patients with claudication had presented with severe lifestyle-limiting claudication and had calf claudication at <20 metres; those with CLTI all presented with Rutherford stage 5 or 6 disease. Immediate procedural success was 100%; 15 (16%) underwent a hybrid intervention. Mean target lesion peripheral artery calcification scoring system (PACCS) grade was 3.31±1.01. At the latest available follow-up (mean 183±75 days) there were 10 deaths (11%), one access complication (1%), two major cardiovascular events (2%) and eight major amputations (9%). A total of 22 re-interventions (24%) and freedom from clinically derived target lesion revascularisation at 6 months was 96% (95% CI 0.88% to 0.99%). Automated 3D plaque subgroup analysis (n=21) revealed >50% remodelling in calcium load within the plaque in 15 plaques (71%), only two dissections (9.5%) and a significant decrease in median plaque calcium load volume (from 7.8 cm3 preoperatively to 5.4 cm3 postoperatively). Conclusion: IVL is a safe and efficacious option for vessel preparation with high procedural success rates, acceptable medium-term complications and freedom from re-intervention.
Prospective study of ABO and Rh blood group frequency and distribution among health-care professional students at Hassan Institute of Medical Sciences, Hassan
Authors: K Somashekara , R Yathish
Published: May 2024

Background: The presence of immunologically competent agglutinogens in ABO and Rhesus (Rh) system makes these blood groups clinically important. The distribution frequency of these blood groups in various geographical regions is essential for the maintenance of blood bank records, for research studies, etc. This helps in safe transfusion during emergency. Many population-based research works were conducted on the prevalence of blood agglutinogens. The lack of data on these blood antigens among young health-care professional students prompted the conduct of this study on blood groups.

Aims and Objectives: The aims and objectives of the study are to ascertain blood group frequencies among health-care professional students and to obtain prospective group of Rh-negative blood donor database.

Materials and Methods: Research was accomplished on 400 health-care professional students of HIMS, Hassan, in department of physiology after going through knowledge, attitude, and practice questionnaire. Blood grouping was done by collecting blood from participants by finger prick method on glass slides.

Results: In participants, the most common blood group was O (40.8%) with decreasing prevalence of B (34.3%), A (18%), and AB (7%). The frequency of Rh-positive and negative groups was 95.5% and 4.5%, respectively.

Conclusion: Among participants, blood group O and blood group AB was most and least common, respectively. The frequency of Rh positive was far higher compared to Rh-negative groups.
Virtuella stängsel: ett flexibelt verktyg för skötsel av naturbetesmarker
Authors: Wahlund Lotten , Hiron Matthew
Published: May 2024

Variation i livsmiljöer knutna till åker- och betesmark har identifierats som avgörande för en varierad flora och fauna i jordbrukslandskapet och särskilt viktiga för den biologiska mångfalden är gräsmarker som betas. Idag sköts många gräsmarker homogent med antingen för högt eller lågt betestryck, vilket kan leda till att marker betas för intensivt eller att de växer igen. Att skapa variation inom en betesmark genom optimerad och kontrollerad styrning av betestrycket utifrån naturvårdsbehov kräver stor arbetsinsats. För att främja den biologiska mångfalden i jordbrukslandskapet finns ett stort behov av flexibla lösningar för skötsel av värdefulla betesmarker. Virtuella stängsel, en teknik där betesdjuren hägnas in digitalt med hjälp av GPS-halsband som avger ljudsignaler och elstötar om djuren går utanför en definierad GPS-gräns (virtuell stängselgräns) skulle kunna underlätta för en mer flexibel och skräddarsydd skötsel av gräsmarker med höga naturvärden. Syftet med studien var att undersöka möjligheten att med hjälp av virtuell stängselteknik hägna in nötkreatur och styra betestrycket i en naturbetesmark. Tekniken testades på sju kvigor under sju veckor från maj-juli 2022. Flera olika virtuella stängselgränser introducerades och flyttades inom en befintlig hage med konventionellt elstängsel runt. Djuren lärde sig snabbt att associera ljudsignalen med de virtuella gränserna och anpassade sin vistelseyta utifrån dessa. Detta avspeglades även i resultatet från vegetationsmätningar som visade på en variation i gräshöjd i olika delar av hagen. Virtuell stängselteknik kan därför vara ett snabbt, flexibelt och effektivt verktyg för skötsel och styrning av betestryck. Vi ser många möjliga naturvårdstillämpningar för tekniken i Sverige men fler studier kring specifika skötselåtgärder bör prioriteras för att få mer kunskap om teknikens fulla potential.