bluuebunny/crossref_metadata_2025 huggingface dataset:
Heat shield architecture for 21st century space missions
Authors: Gramola Michela
Published: March 2023

In past Entry, Descent and Landing (EDL) missions, deceleration of a spacecraft has been achieved by means of fixed-geometry rigid heat shields. Their maximum diameter was constrained by the size of the launcher fairing, and this in turn has restricted the payload mass. Foldable aeroshells, stowed during launch and deployed before the entry manoeuvre, show potential for landing heavier payloads on the surface of a planet. In addition, they could be a versatile option for aerocapture manoeuvres and orbit insertion at the ice giants. In this talk I will give an overview of the research on mechanically deployable heat shields that has been carried out at Imperial College in recent years. The Hypersonic foldable Aeroshell for THermal protection using ORigami (HATHOR) concept consists of rigid Thermal Protection System (TPS) panels fitted between retractable ribs for the repeatable deployment of a high precision geometry. The talk will focus on the aerothermodynamic aspects of the problem, assessed through an in-house developed engineering model for heat transfer to a complex-geometry heat shield.
La importancia de la comunicación médico-paciente: un estudio en Argentina
Authors: López Gabeiras Maria del Pilar
Published: March 2023

Objetivo: Analizar la importancia de la comunicación en la relación médico-paciente y recopilar información sobre la percepción durante su práctica. Método: Se realiza una revisión bibliográfica y una encuesta (participaron 105 médicos en Argentina). Resultados: Los resultados muestran que la mayoría de los profesionales refiere dificultades en la comunicación y que estas dificultan la atención. Los médicos manifestaron dificultades para comunicar malas noticias, mayormente en las áreas clínicas, y que la habilidad de ponerse en el lugar del paciente es fundamental para la comunicación de dichas noticias. Los jóvenes consideran de manera significativa que la comunicación de malas noticias depende de la práctica. Conclusiones: Las habilidades comunicativas son indispensables. Existe evidencia para sugerir que es necesario profundizar en la adquisición de competencias comunicativas y valores éticos.
Sustainability Methodologies and Sustainability-linked Senior Management Compensation Policies: An Analysis of Relationships for Global Companies in the Healthcare and Educational Services Sectors
Authors: Sarikas Robert H. , Tipton Elizabeth , Fodor Andy , Djatej Arsen M.
Published: March 2023

The primary objective of this research is to examine the relationship between different forms of compensation for the board of directors/senior management and key sustainability indicators for publicly traded companies in the healthcare educational services economic sectors across the globe. This study also investigates the existence of measurable links between sustainability policies and extra-financial performance-oriented compensation for CEO, executive directors, and non-board management individuals based on ESG (environmental, social, and governance) or sustainability factors. The findings reveal a rather moderate, but important relationship between the independent and the dependent variable.
Portable Water Shortages on Households in Bomaka in the Buea Municipality, South West Region of Cameroon: Challenges and Coping Strategies
Authors: Awudu Ngwani , Nformi Roland , Godlove Funwi , Randy Yinkfu
Published: March 2023

Today, in most urban areas in Sub-Saharan Africa, dwellers are facing difficulties in adequately accessing potable water in sufficient quantity and quality for their daily needs and uses. Analogously, there have been fledgling challenges triggered by portable water Shortage in Bomaka. This study aims to assess the problem of potable water accessibility in Bomaka in the Buea Municipality and the coping strategies developed by dwellers to meet their needs. The study used exploratory, inferential and descriptive research approaches. In this light, the cross-sectional research design was adopted to address the overall problem. A preliminary reconnaissance survey was accomplished whereby questionnaire and interview guides were administered. A total of 200 households were selected and investigated based on purposive and systematic random sampling, particularly around the water points. Secondary information was sought from published and unpublished materials. Results reveal that in Bomaka 100% of the households sourced their water from alternative sources (boreholes, wells, streams and springs) without any pre-treatment. Most of these sources do not flow regularly because of siltation or a drop in the volume of flow, especially in the dry season. The Cameroon Water Utilities Corporation (CAMWATER) is absent in this locality. Results also revealed that water sources were located at reasonable distances. This study records that the major causes of portable water shortages were population increase, poor planning and water pollution. The implications of irregular and portable water shortages are increased health risks, poor hygienic condition, disruption of economic activities and domestic routines. The study concludes that water remains the yard stick and a panacea to many countries and households. Thus, adequate planning, undivided attention and holistic measures should be implemented in order to sustain its accessibility.
Dokumenty planistyczne a ekspansja ferm przemysłowych w gminach wiejskich w Polsce
Authors: Krupińska Paulina
Published: March 2023

Celem artykułu było określenie roli planowania przestrzennego w zapobieganiu ekspansji ferm przemysłowych. Działalność wielkopowierzchniowych ferm wiąże się bowiem z wieloma uciążliwościami, z jakimi zmagają się mieszkańcy sąsiadujących z takim obiektem terenów, a także z negatywnym oddziaływaniem na poszczególne komponenty środowiska. Zadaniem opracowania było wskazanie roli dokumentów planistycznych wraz z zawartymi w nich wytycznymi oraz ustaleniami dotyczącymi zapobiegania ekspansji ferm przemysłowych. Tylko szczegółowo sporządzone dokumenty planistyczne są bowiem w stanie zapobiec konfliktom przestrzennym i społecznym spowodowanym powstawaniem ferm w niewłaściwych miejscach, mogą też przyczynić się do zmniejszenia uciążliwości, jakie powodują tereny specjalistycznej produkcji zwierzęcej. Władze gmin wiejskich powinny dążyć do sukcesywnego sporządzania miejscowych planów, które są skutecznym rozwiązaniem w utrzymaniu ładu przestrzennego.
"HURDLES IN APPROACHING SCIENCE AND IN SOLVING CLIMATE AND ENVIRONMENT ISSUES"
Authors:   Constanta Maritime University,Romania, NUTU Catalin Silviu
Published: March 2023

"Showing complicate issues in science, like the strange facts and realities pertaining to the quantum world, this paper explains why it is so difficult to understand and to solve those complicate issues. This paper also stresses the important fact, that in order to understand these strange realities pertaining to the quantum phenomena but also in order to solve other complicate problems of science such as the climate change issues, one should give up the traditional way of thinking of the science and should also renounce the false idea of the rationalism, stating that the entire reality can be known and understood by using scientific reasoning."
"THE LOGIC OF HAPPINESS AND ITS RELATIONSHIP WITH ENVIRONMENTAL AND CLIMATE ISSUES"
Authors:   Constanta Maritime University,Romania, NUTU Catalin-Silviu
Published: March 2023

" This paper is concerned with the logic of happiness, whereas happiness is most commonly seen by man as a function of fulfilled wishes. It also shows the disastrous consequences for man and his home planet when engaging in this damaging way to search for happiness. This paper also shows that the main reason for consume and overuse of planet’s resources is that man has been trained to consumerism by various tactics and strategies which were applied to him in the recent past, with the purpose of making him “successful” and a “good” citizen. This paper also provides some more conventional and some more nonconventional solutions to undone this evil of the “induced” necessity to consume in order to be happy."
FTA ON SHIP FIREFIGHTING PLANT
Authors:   Constanta Maritime University,Romania, PANAITESCU Mariana , PANAITESCU Fanel-Viorel ,   Constanta Maritime University,Romania, VOICU Ionut ,   Constanta Maritime University,Romania
Published: March 2023

"One of the main causes of accidents on board ships is fire. This is because of the presence of high temperature, the excess quantity of flammable oil and other combustible materials. A ship is fitted with various types of fire retardant and firefighting equipment so as to fight any kind of fire and extinguish it as soon as possible before it turns into a major catastrophic situation. Purpose: This paper presents the crisis management on ship’s firefighting plant, Technical data for firefighting plant with foam, Fault Tree Analysis data, Fault tree block diagram, Failure probability and basic events of fault tree, The equations of fire analysis, The method of simulation, The simulation of a fire incident in the firefighting plant, for a ship named ""Mamola Defender"" which is a vessel that provides the supply of marine drilling platforms. The results are: Foam firefighting plant diagram, Locations for firefighting systems, Fire Control and Safety Plans, Fault tree block diagram, The values of probabilities, The relationship between input and output events. The results of simulation for a scenario are: radiant heat distribution of a jet fire, the heat flux, the temperature distribution on different stage of fire, the flame propagations. Conclusions: The methods which used for simulation present a possible fire incident in a plant with many hazardous materials. This method of simulation is useful to assistance plant owners and operators in different events of emergency situations. This methodology is useful to prevent human casualties and important structures."
"PERFORMANCE ANALYSIS OF INERT GAS PLANT WITH SCRUBBER USING ANSYS FOR A VLCC SHIP"
Authors:   Constanta Maritime University, Romania, STAN Liviu-Constantin , FAITAR Catalin ,   Constanta Maritime University, Romania
Published: March 2023

"Through the 1978 SOLAS Protocol and then through the introduction of amendments from 1981 and 1983, new specifications are brought regarding the design, operation, maintenance, verification of inert gas systems intended for both oil tanks and bulk chemical tanks, and, in general, the systems of safety on board ships carrying dangerous goods. The inerting method using a gas system with generator and scrubber involves a continuous and very efficient process, with a low level of supervision and maintenance, that is why this type of installation was chosen in this study. Installations with a scrubber type unit require the installation of an inert gas generator that operates at a pressure of 8-10 bar and releases nitrogen at 7-9 bar. The quality of the air will depend on the type of generator used, scrubber type unit, but air without impurities with the best possible quality is recommended. Nitrogen quality for a given unit varies with production rate and is generally 95-97% pure. By connecting high-quality scrubbers, nitrogen can be brought to 99% purity, but at lower production rates and much higher energy consumption rates of any system on board ship is specifically identified with its reliability. So as to get the best out of marine motors, it is critical to screen their performances and take measures to accomplish productive combustion. As a result of heat gains on board ships from engine rooms and crew, the increase in humidity as well as due to the various releases of gases from on board systems, room air deteriorates, requiring replacement and its processing through the HVAC (heat, ventilation and air conditioning) system. The combustion process in diese."
Kihívás és/vagy lehetőség? – Szakirodalmi ajánlások az epizodikus önkéntesek toborzásához, foglalkoztatásához és megtartásához
Authors: Bartal Anna Mária
Published: March 2023

A hazai önkéntes menedzsmenti tapasztalatok egyaránt azt mutatják, hogy az önkéntesség "reflexív" stílusa egyre szembetűnőbb. A magyar önkéntes szektorban – a statisztikai adatok bizonysága szerint – a rendszeres és folyamatos önkéntességhez képest mind nagyobb arányban találunk olyan önkénteseket, akik ad hoc, egy-egy alkalommal, évente egyszer-kétszer vagy pedig rövidebb időszakra, projektekre vonódnak be. Az olyan egyszeri, általában néhány órás tevékenységre, ami vagy egy egyszerű, vagy egy speciális feladat elvégzését jelenti és nem igényel különösebb képzést, a nemzetközi szakirodalomban az epizodikus önkéntesség kifejezést használják már közel harminc éve. Magyarországon az önkéntesség differenciált megközelítését lehetővé tevő epizodikus önkéntesség értelmezése, sem az önkéntes gyakorlatban, sem a szakirodalomban még nem nyert teret. Mindezekből következően módszertani jellegű írásunknak két célja van. Egyfelől a tanulmány első részében bemutatjuk az epizodikus önkéntesség jelentését és típusait azzal a céllal, hogy a hazai szakmai és tudományos közbeszédben is elterjedjen a fogalom használata és típusainak értelmezése. Másfelől az epizodikus önkénteseket (is) foglalkoztató szervezetek menedzsmenti munkájának fejlesztéséhez kapcsolódó nemzetközi, szakirodalmi ajánlásokat ismertetjük az önkéntesek toborzása, koordinálása, motiválása, elismerése és elégedettségének mérése terén. A tanulmány egyes megállapításait ajánljuk a hazai gyakorlati szakemberek és kutatók figyelmébe.
THE POWER OF A POINT — A VECTOR PERSPECTIVE
Authors:   Institute of Mathematics and Informatics, BAS, Bantchev Boyko
Published: March 2023

Vector algebra is a very effective calculation language for doing geometry. It is expressive and succinct, and tends to foster generality and simplicity. In this article we consider from a vector perspective a series of problems concerning circles. After presenting a simple but so far seemingly unnoticed property of the notion of power of a point, we show its application to constructing solutions to the problems.
SEVERAL OPPORTUNITIES FOR IMPLEMENTING THE TRAINING IN “COMPUTER MODELING AND INFORMATION TECHNOLOGIES” IN THE 7TH GRADE
Authors:   Konstantin Preslavsky University of Shumen (Bulgaria), Harizanov Krasimir
Published: March 2023

The article discusses some programming environments that can be applied in the 7th grade “Computer Modeling” classes. Attention is paid to the new active programs in the discipline “Computer Modeling and Information Technologies”. A study was conducted to track the attitudes of teachers related to teaching a scripted text programming language in 7th grade.
Hvarski iseljenici i hrvatska bratovština sv. Jurja i Tripuna u Mlecima (15. – 18. stoljeće)
Authors: Čoralić Lovorka
Published: March 2023

Središnja tema rada usmjerena je na oblike povezanosti iseljenika s otoka Hvara u hrvatskoj bratovštini sv. Jurja i Tripuna u Mlecima u razdoblju od 15. do 18. stoljeća. Rad se zasniva na obradi gradiva pohranjenoga u Državnome arhivu u Mlecima (oporuke) i Arhivu bratovštine sv. Jurja i Tripuna (spisi vezani za prihode i rashode bratovštine te popisi članova i dužnosnika u bratimskim vijećima i odborima). Uvidom u gradivo razvidno je da su Hvarani stoljećima predstavljali jednu od najvažnijih hrvatskih regionalnih skupina u gradu na lagunama, a u 17. stoljeću može se kazati da su, prema ugledu i učestalosti spominjanja, prednjačili nad drugim bratimima zavičajem od Dalmacije do Boke kotorske. U prilogu se donosi popis svih dosad istraženih Hvarana uključenih u bratovštinu sv. Jurja i Tripuna.
A Survey on Big Data Application for Modality and Physiological Signal Analysis
Authors: Liu Qinghui Madeleine
Published: March 2023

An explosion of healthcare data has occurred in recent years due to the widespread availability of sophisticated physiological signal monitoring devices and the development of telemetry and cognitive communication systems. Additionally, the accessibility of medical data for the establishment of applications in big data has rapidly increased due to affordable and efficient storage and power techniques. With the current state of technology, healthcare professionals are unable to effectively handle and understand large, rapidly changing, and complex data; this is where big data applications come in. Making medical services more cost- effective and sustainable is a driving force behind the creation of such systems. In this article, we present a discussion of the present condition of big data applications that make use of physiological signals or derived metrics to aid in medical decision making in the home and in the hospital. Specifically, we examine critical care systems designed for continuous healthcare management and address the obstacles that must be surmounted before such systems may be used in real-world practice. Big data technologies might revolutionize future hospital administration if these problems are solved.
Contribuições de uma Liga de Anatomia Clínica e Cirúrgica durante a Pandemia: Relato de Experiência
Authors: Pinkoski Igor Miguel , Silva Eluan Joel Rodrigues da , Souza Cristiano De Bem Torquato , Lopes Pastro Maria Gabriela , Pereira Kleber Fernando
Published: March 2023

Durante a pandemia do novo coronavírus, diversas restrições ao contato social foram implementadas no Brasil e no mundo. Sendo assim, o cotidiano foi forçadamente adaptado às novas necessidades de distanciamento. Dentro do mundo acadêmico, a atuação das ligas acadêmicas foi também acomodada ao contexto. Esse estudo, do tipo descritivo, transversal, retrospectivo de caráter qualitativo, relata as ações da Liga Acadêmica de Anatomia Clínica e Cirúrgica da Universidade Federal do Paraná – Campus Toledo na pandemia. As aulas ministradas pela Liga a cada quinze dias começaram a ser exibidas online, com boa parte sendo aberta ao público. A criação do projeto de extensão “Anatodúvidas”, com postagens informativas baseadas no conhecimento científico e direcionadas para o público geral ocorreu em 2021. A Primeira Jornada de Anatomia Clínica e Cirúrgica do Oeste do Paraná foi realizada de modo completamente virtual, com palestrantes vindos de todo o país nesse mesmo ano. Também foram publicados resumos em Congressos de Medicina. Dessa maneira, a liga agiu na pandemia sob os princípios da democratização do conhecimento, buscando divulgar informações de confiança, despertar o interesse na disciplina e complementando a formação médica.
As mídias sociais no contexto das ações da liga de alergologia e imunologia da Universidade Federal de Alfenas durante a pandemia causada pelo novo coronavírus
Authors: Dias Nayara Andrade , Pereira Fabiana Freitas , Rosa Bethânia Lissa da Silva , Maciel Juliana Silva , Nogueira Marina Andrade , Oliveira Isadora Azevedo , Dias Gabriel Tadeu , Magalhães Evandro Monteiro de Sá , De Almeida Leonardo Augusto
Published: March 2023

A Liga Acadêmica de Alergologia e Imunologia (LAAI), fundada em 2018, tem objetivo de se aprofundar em imunologia e alergologia multidisciplinarmente, atuando junto à comunidade, a fim de promover saúde e prevenir e tratar doenças. A instalação do cenário pandêmico, em março de 2020, exigiu adaptações da LAAI, que buscou apresentar temas variados relacionados à alergologia e imunologia via plataformas online para manter o pilar da extensão de maneira produtiva, através de conteúdos informativos semanais no Instagram e Facebook da LAAI. O presente estudo busca elucidar o sucesso das redes sociais da liga através da determinação de nosso público-alvo, bem como da mensuração do alcance dos posts realizados pela LAAI durante a pandemia. Os dados foram obtidos em abril de 2021, através do Facebook e do Instagram da liga, abrangendo informações acerca do número de curtidas, comentários, compartilhamentos e alcance atingidos, além do número de visualizações obtidas nos vídeos postados. Verificou-se que os seguidores são predominantemente mulheres jovens residentes em Alfenas e que os temas de maior interesse da comunidade foram temas envolvendo alergologia. As publicações efetuadas em ambas as redes sociais da liga alcançaram, em média, 174.32 pessoas por postagem, com uma média de curtidas de 18.94, além de 3.96 compartilhamentos e 1 comentário por postagem. Já a média de visualizações por vídeo no Instagram foi de 123.78. O uso das mídias digitais, principalmente o Instagram, foi fundamental nesse contexto de pandemia para que a LAAI continuasse ativa transmitindo informações para um maior número de pessoas de maneira promissora.
COMO OS IMIGRANTES HAITIANOS SE RELACIONAM COM O VODU NO MUNICÍPIO DE CAMBÉ/PR
Authors: Jean Baptiste Marc Donald
Published: March 2023

Buscando contribuir para o debate sobre as práticas religiosas dos imigrantes haitianos no Brasil, este trabalho tem como objetivo analisar o sentido do lugar marginal atribuído ao vodu pelos imigrantes haitianos, apesar de ser um elemento fundamental e transversal na formação identitária haitiana. Trata-se de um artigo qualitativo construído por meio de dois procedimentos metodológicos: análise documental e pesquisa de campo. A pesquisa constitui um excerto da discussão realizado no curso de doutorado em Serviço Social e Política Social, realizada com os imigrantes haitianos residentes no município de Cambé/PR entre 2018-2022.  A pesquisa evidenciou que, tanto no contexto migratório dos haitianos em Cambé/PR quanto no Haiti,  enquanto pauta e prática, o vodu constitui um tabu. Além de ocupar um lugar marginal, continua sendo silenciado pelos imigrantes ao permanecerem no Brasil. Para estes imigrantes, tal postura representa uma busca por melhor aceitação na sociedade brasileira através, que é caracterizada pela adoção de valores universalmente aceites na modernidade, que são o protestantismo e o catolicismo.
Following up on mild cognitive impairment: A memory service case study
Authors: Tuijt Remco , Kuhn Ronja , Charlesworth Georgina
Published: March 2023

Mild Cognitive Impairment is a diagnosis of uncertainty. Although some people with MCI may go on to receive a dementia diagnosis, others do not. In the absence of national guidelines for MCI assessment and support, there is considerable variation in practice. In this paper we provide a description of the approach taken by one Memory Service to recalling people given an MCI diagnosis, including consumer feedback.
A summation of the collective workstream membership thinking at this point
Authors: Smith Angela
Published: March 2023

This article gives the reader an insight into the quandaries and task list ahead with the ongoing work of the FPOP MCI workstream.
Differential Privacy-based Personalized Recommendation Service for "Helping Farmers" Tourism in Guizhou Province
Authors: Xiao Zifang , Li Ting , Liu Zhuo
Published: March 2023

The revitalization of the countryside is an important strategy proposed in the report of the 19th Party Congress. Rural tourism in Guizhou Province is the key to the development of "big tourism" in the 14th Five-Year Plan of the province, and also the driving force of rural revitalization. Most of the current rural tourism personalized recommendation systems rely on user information, and the exposure of sensitive user information has become an obstacle to the development of smart tourism. Through the genetic matrix decomposition recommendation algorithm based on satisfying differential privacy protection and differential privacy recommendation algorithm for sparse data, privacy protection of similarity calculation, accuracy of recommendation and data security are realized. Actively develop secure and personalized rural tourism recommendations so that the majority of farmers can benefit from them.
Prediction and Analysis of Milling Stability Under Multi-effect Synergy
Authors: Zheng Hualin , Gong Xiyu , Hu Teng
Published: March 2023

In the milling process is often accompanied by a lot of vibration, these vibrations will lead to the instability of the processing process resulting in the occurrence of chatter, chatter in the process will seriously affect the processing efficiency, reduce the quality of processing, so the mechanism of chatter and influencing factors to study, and through the analysis of stable milling processing parameters, to achieve efficient precision machining is very important. In this paper, based on the traditional milling model, the regeneration effect, process damping effect and modal coupling effect are taken into account, and the friction effect of the front cutter face is also taken into account for frictional chatter to make the prediction range of the model more accurate. Then, a milling dynamic model was established combining various effects, and the stability lobe diagram was solved by the fully discrete method. The influence of each effect on milling stability was analyzed and the influence of friction effect was emphatically discussed. Finally, the accuracy of the model was verified by the milling stability experiment.
Towards Transparency and Security: An Analysis of The Application of Blockchain in Digital Journalism
Authors: Hou Xiaotian
Published: March 2023

Blockchain technology has been regarded as a disruptive new technology from its very beginning. Various blockchain platforms, such as one featuring a public chain, or a private chain, or an alliance chain, are built for the news industry. With its unique technological features, it helps the journalism industry rebuild a transparent production chain and solve the problems in news production. Finally, the incentive mechanism of crypto tokens creates a virtuous cycle of content output, source management and fact checking to protect copyrights and strengthen the accountability mechanism. However, the existing block technology is not mature. Due to technological demands, energy cost and potential economic bubbles in token trading, applications of blockchain in journalism require further technological tweaks and updates.
Temporal and Spatial Evolution of Land Use in Gansu Section of The Yellow River Basin and Analysis of Driving Forces
Authors: Zhang Tong
Published: March 2023

Land use change is an essential representation of the interaction between human activities and the natural environment as well as a vital part of global environmental change and sustainable research. Exemplified by the Gansu section of the Yellow River Basin, land-use transfer matrix, land-use change index and principal component analysis are used to study the spatiotemporal evolution pattern and driving mechanism of land use. The results revealed that during the study period, grassland, plowland and woodland are the primary type of land use in the Gansu section of the Yellow River Basin, land use transition was mainly based on the transfer between plowland, grassland and construction land. The comprehensive land use change index was 0.39%, showing a fluctuation trendency of the first rising, then falling and then rising; the individual land-use change index in different land use types was shown in descending order: Construction land > water > plowland > woodland > grassland > unused land. Population structure, economic level, and industrial structure are the main driving factors affecting the change of construction land and plowland area.
Clustering Analysis of Airport Traffic Similar Days Affected by Epidemic Based on HI-K-means
Authors: Kong Derui , Duan Manzhen , Shang Ranran , Li Yinfeng
Published: March 2023

During the epidemic period, the daily traffic fluctuation of the airport has a strong correlation with the current control policy. The analysis of traffic similar days can provide a reference for the optimization of airport traffic management. Aiming at the analysis of traffic similar days, a clustering model of traffic similar days based on HI-K-means (Hierarchical k-means clustering algorithm) is proposed. This algorithm combines the advantages of Hierarchical clustering and the K-means clustering algorithm and makes up for the defects of the two algorithms. Taking Tianjin Binhai Airport as an example, cluster analysis is carried out. Finally, it is concluded that the three types of traffic similar days can better match the daily traffic under different policies, indicating that the model has strong availability and high accuracy.
Design of Real-time Movement Guidance System Based on Blazepose on Mobile Terminal
Authors: Wang Jingying , Zhang Yujun , Zheng Xin
Published: March 2023

People's daily sports and patient rehabilitation movement requires standard movement guidance, this paper puts forward a real-time movement guidance in mobile terminal system, the main function of using the camera to obtain the user movement posture, identify the current posture in the application of the category, and the current posture with the standard movement, in the user movement key body with different color grading tips, in order to prompt the user and correct the user posture.
Research on New Air Supply Mode of Fan-coil Unit Based on CFD
Authors: Li Meng
Published: March 2023

Fan coil unit air supply is one of the main air supply modes of air conditioning. The fan coil unit system generally adopts the air distribution form of upward supply and upward return on the same side. In this work, a static pressure box is added at the outlet of the fan coil, and a deflector with separate control direction is set at the outlet of the static pressure box. In summer, the combination of up-side air supply and up-attached down-flow air supply is adopted to adjust the deflector to control the distribution of cold air and keep the overall indoor temperature distribution consistent. In winter, the air supply outlet is transferred to the lower part of the fan coil, and the hot air is directly sent to the personnel activity area at the lower part of the room by the adhesive effect of the jet, effectively solving the indoor air stratification phenomenon in winter.
Research on Flower Image Classification Based on Transfer Learning
Authors: Wang Zhiling
Published: March 2023

Due to the high similarity between flowers, it is difficult to identify them if they do not have the corresponding biological knowledge when classifying varieties manually. Given the above problems, to improve the accuracy and efficiency of flower classification, this paper proposes a migration parameter pre-training and fine-tuning VGG16 model based on the ImageNet data set to solve this problem. In this paper, the grid coverage enhancement method enhances the flower classification data set to expand the training sample data. The model uses the migration learning pre-training and fine-tuning method to improve network stability and accelerate network convergence. The results of comparative experiments show that the performance of the improved model has been significantly improved, and the result is better on the flower image data set, which has specific practical value.
Study on Calibration Method for Ion Concentration Measurement Parameters of Ion Selective Electrode Based on Multiple Linear Regression
Authors: Li Jingjin , He Zhang
Published: March 2023

In the drilling industry, the change of ion concentration of drilling fluid can provide a basis for judging whether it enters the target layer and whether there is a layer penetration phenomenon during the drilling process. Traditional ion concentration determination methods require manual operation, time-consuming and labor-intensive, and most of them have problems such as large measurement errors, measurement cycles and in-line measurements, so for these problems, there is an urgent need for a fast and real-time measurement measurement method. The ion-selective electrode method allows accurate and real-time measurement of chloride, sulfur and potassium ions, but due to the mechanism of the ion selective electrode method, mutual interference occurs when multiple ions coexist. Aiming at the problem of low efficiency of traditional measurement methods and multi-ion interference with each other in ion-selective electrode method. In this paper, an ion concentration calibration method based on multiple linear regression is proposed, and the error cause of the ion selective electrode method is analyzed first, and the measurement value is calibrated in combination with the multiple linear regression model, and finally the ion concentration experimental platform is established, and the results of the measurement accuracy of chlorine, sulfur and potassium ions are improved by more than 90%, which proves the effectiveness of the proposed method.
Novel Metaphor Comprehension in Brain: Electrophysiological insights
Authors: Si Yunhan , Zhang Shiqian
Published: March 2023

Novel metaphors symbolize the innovation of language, and their processing has become one of the focal issues in the field of cognitive science. This paper summarizes ERP studies and finds that the current processing models for novel metaphor processing are more in favor of the Structure Mapping Model. Relevant empirical studies reveal that the comprehension process of novel metaphors is influenced by syntactic elements, the nature of mapping, contextual cues, subjects' level of creativity, and experimental tasks. Future research should refine the processing of novel metaphors based on controlling for the influence of variables and improve theoretical and empirical studies.
A Review of Calcium Ferrite in Sintering of Iron Ore and The Effect of Gangue Composition on Its Formation
Authors: Fan Xinsheng
Published: March 2023

In this paper, published studies on the bonding phase of calcium ferrite are reviewed. As the main bonding phase of high-basicity sinter, calcium ferrite has the advantages of high strength, good reducibility and easy formation of liquid phase. In particular, we emphasize the formation process of calcium ferrite phases, especially Silico-Ferrite of Calcium and Aluminum(‘SFCA’), and the influence of common gangue components (Al2O3, SiO2, MgO) on its formation. Based on the critical analysis of the current data, some deficiencies in this field are put forward and the research directions we think will be key in this field in the future are attached, so as to improve the theories related to calcium ferrite in iron ore sintering. The relevant results provide theoretical basis for understanding the formation process of calcium ferrite and producing high quality sinter.
Appearance Awared Detector for MOT: An Enhanced ReID Branch for Tracking Memorize
Authors: Chen Hongyu
Published: March 2023

The traditional ByteTrack approach to multi-target tracking, focusing on simple, effective algorithms. It performs well in short-term multi-target tracking tasks with 80.3 MOTA, 77.3 IDF1 and 63.1 HOTA on MOT17 30 FPS and is currently ranked number one in the MOTChallenge rankings. But for situations where the camera is moving, or for completing target recovery tasks after a brief loss of position and track information, conventional MOT modules often do not perform as well as they should. To make bytetrack perform better when the motion background pattern is more complex, we used the re-identification module and added appearance information to enhance ByteTrack’s MOT process. We verified our improvement on MOT17, which achieved higher results than the original on the metrics Precision and Recall, and was also more suitable for more complex scenarios.
Kinship Verification Method of Face Image Deep Feature Fusion
Authors: Li Decai , Jiang Xingguo
Published: March 2023

Kinship verification is an important and challenging problem in computer vision. How to extract discriminative features is the key to improve the accuracy of kinship verification. At present, convolutional neural networks (CNNs) for feature extraction in the field of computer vision has achieved remarkable success, making it the most scholars used to study kinship verification related issues. However, few people use the self-attention mechanism with global capture capability to build a backbone feature classification network. Therefore, this paper proposes a backbone feature extraction network model based on a non-convolution, which expands the selection range of traditional classification networks for kinship verification related issues. Specifically, the paper proposes to use Vision Transformers as the basic backbone feature extraction network, combined with CNN with local attention mechanism, to provide a unique integrated solution in kinship verification. The proposed GLANet model is used for kinship verification and can verify 11 kinship pairs. The final experimental results show that in the FIW dataset, compared with the RFIW2020 challenge leading method, the proposed method has better verification effect in kinship, and the accuracy rate can reach 79.6 %.
Intelligent Bus Operation Service Quality Evaluation System Construction
Authors: Wang Shujie , Zhang Lin
Published: March 2023

Taking the quality of intelligent bus operation service as the research object, the evaluation index system of intelligent bus operation service quality is established with the dimensions of safety, comfort, convenience, timeliness, wisdom and economy. Using the fuzzy evaluation method, combined with AHP hierarchical analysis and expert method, we evaluated the smart public transportation in Tangshan and Anshan cities. Release online passenger satisfaction survey questionnaires in Tangshan and Anshan cities, in conjunction with fuzzy evaluation. Combined with the analysis of comparative passenger satisfaction survey data, the evaluation results are valid. Based on the results of the survey, reference opinions on the shortcomings of smart public transportation in Tangshan City and Anshan City are provided.
Design and Simulation Analysis of Semi-Active Lifting and Sinking Compensation System
Authors: Wang Chuan , Liu Huachuan , Zhang Xueliang , Huang Chi , Chen Qiufan
Published: March 2023

The lifting and sinking motion generated by the drilling platform causes large fluctuations in the suspension tension of the large hook, which affects the stability of the drilling pressure acting on the rock at the bottom of the well, greatly reduces the efficiency of drilling and decreases the service life of the drill bit and the drill column under the action of cyclically varying loads, causing an increase in the overall drilling cost. In order to avoid the above situation, a nonlinear model of a semi-active lift-sink compensation system is designed and a method to improve the compensation efficiency of the system is proposed. Firstly, the relevant physical model of the hydraulic system is established, and then its simulation model is built according to the working principle of the semi-active lift and sink compensation system. Then the effects of different factors are added to the simulation model of semi-active lifting and sinking compensation, and finally the effects of different factors on the compensation efficiency of the active lifting and sinking system are compared. The simulation results show that a regular sinusoidal wave with a peak value of 6.5 m and a period of 10 s as the ship's lifting and sinking displacement input will reduce the compensation efficiency of the semi-active lifting and sinking compensation system, while the smaller the stiffness of the wire rope, the better the compensation effect of the drill column and the higher the compensation accuracy. The proposed method can effectively improve the compensation efficiency of semi-active lifting and sinking compensation system.
Regression Prediction of Effective Temperature of Stellar Spectrum Based on Kernel Method
Authors: Ji Xiang , Wu Yadong , Zhang Wei , Li Yi
Published: March 2023

There are many factors that lead to the huge difference in stellar spectra, the most important of which are atmospheric physical parameters, namely, effective temperature, surface gravity and chemical abundance. This study is based on the classified star data in LAMOST DR6 with a temperature value of 7500-9000K and a signal-to-noise ratio of S/N greater than 50. The results of the two methods are compared through the regression verification of nuclear least squares regression (KLSR) and nuclear PCA regression (KPCR), The scope of application of the two methods is discussed, and the two most important lick parameters affecting the effective temperature are regressed. By regressing the effective temperature of such stars, a method for predicting the effective temperature of measured spectral data under large samples is given, which provides a certain reference for predicting the trend of star evolution and studying the evolution law of such stars.
Research on the Model of Intelligent Upgrading Capability of Automobile Enterprises Based on Niche Perspective
Authors: Wu Xianfeng , Hao Huanhuan
Published: March 2023

The intelligent upgrading of enterprises has become the inevitable trend of the development of modern manufacturing enterprises, which has positive significance for promoting the high-quality development of manufacturing industry and accelerating the industrial transformation and upgrading. As the pillar of manufacturing industry, the intelligent upgrading of automobile industry is imminent. This paper defines the connotation of the intelligent upgrading capability of automobile enterprises, and constructs the formation model of the intelligent upgrading capability of automobile enterprises based on the niche situation theory. On this basis, it puts forward the development countermeasures of the intelligent upgrading of automobile enterprises from the aspects of selecting the upgrading direction suitable for their own development, finding the correct positioning in the market, strengthening the interaction with the environment and active selection, It lays a theoretical foundation for the intelligent upgrading of automobile enterprises in practice.
Study on the Classification of Glass Relics Based on Spearman Correlation Coefficient
Authors: Qu Qianwei , Wu Wenxue , Guo Yuhan
Published: March 2023

In order to study and analyze the surface weathering and glass types of ancient Chinese glass relics, this paper conducts data visualization and description analysis on related issues such as cultural relics weathering and chemical composition based on existing data. Firstly, based on the existing data indicators, preprocessing is carried out, and Tableau is used for data visualization. The surface weathering of glass relics and the correlation charts of glass type, decoration and color are preliminarily obtained, and the statistical law of its component content is preliminarily described through the charts. Secondly, Spearman correlation coefficient is used to test whether the surface of glass relics is weathered or not and the correlation between glass type, decoration and color. At the same time, chi-square analysis is used to test the difference. The results show that the correlation between glass type and surface weathering is high, and the difference between different types is also high. The comprehensive analysis shows that the glass type is a significant factor affecting the surface weathering of glass relics, and the former problem is further analyzed at the specific data level.
Structural Strength and Fatigue Strength Analysis of Roller Arm
Authors: Li Bin , Ji Yafei
Published: March 2023

The cone reamer is used for underhole reaming, mainly through the impact crushing and cutting of teeth to complete rock breaking, easy to produce vibration. At the same time, the underground topography is complex and rock materials are changing. Therefore, the force of the cone reamer is complex and easy to damage. According to the statistics of the field use, the main failure form is the failure of the roller arm. The reaming arm consists of two parts: a cone arm and a bearing. As for the reaming arm, it is subjected to the reaction force of rock on teeth and the support force of piston when working. When the teeth eat into the rock alternately, longitudinal vibration will be generated, so that the force of the cone arm is random impact load. Due to the instability of bit weight, additional dynamic load is caused, resulting in the piston support force is also random impact load. Thus causing the fracture of the cone arm. For bearings, reamers are used to drill stepped holes and rely on the outer teeth of the cone as opposed to the cone bit. When the teeth eat into the rock alternately, the longitudinal vibration is generated, and the rock is broken through the impact and cutting of the teeth. And the axial acceleration of the cone reamer is greater than the longitudinal acceleration, so the axial vibration is severe and the bearing bears the impact load. At the same time, the wall morphology and rock material are changing, so the bearing is subjected to random contact fatigue load. The piston cracks under the repeated action of random load, leading to fatigue failure. It can be seen from the structure characteristics and working principle of the cone reamer that the cone arm is the core functional component of the cone reamer. Therefore, abnormal failure of the above components should be avoided as far as possible. Therefore, this paper completed the simulation analysis of the cone arm, obtained the stress and strain distribution of the cone arm, and established the finite element analysis specification and safety evaluation index of the cone arm.
Research on Environmental Pollution Control Strategies Based on Grey-scale Models
Authors: Han Jianbo , Li Meiying , Sheng Zeyu
Published: March 2023

With the continuous development of China's economy, the problem of environmental pollution is becoming more and more serious. The formulation and implementation of environmental protection policies have greatly promoted the development of resources and industries. At the same time, resource development and industrial development play an important role in the formulation of environmental protection policies, and the two influence each other and complement each other. Generally speaking, the better the environmental policy, the lower the level of pollution and the better the state of the environment. As major factors affecting the state of the environment, air pollution and water pollution have a guiding role in the formulation of environmental policies. In this paper, we study the relationship between air and water pollution and each influencing factor, and establish a mathematical model to filter out the main influencing factors of each. This paper examines the relationship between air and water pollution and each of the influencing factors. Continuing the previous environmental policies, the development trends of air and water pollution in China in the next ten years are predicted.
Analysis of Space-time Characteristics of Urban Residents' Travel in Chongqing with Customized Passenger Transport
Authors: Gao Shuhan , Wang Zhiyong
Published: March 2023

Intercity customized passenger transport as a new travel mode has been widely accepted by the road passenger transport industry and enterprises. Under the guidance and support of national policies, passenger transport enterprises all over the country are actively exploring the business practice of inter-city customized passenger transport, which is booming. In this context, this paper uses python and other analysis software to collect the 2021 operation data of Chongqing Yukexing Company and analyze the distribution of gender, age, and refund rate of customized passenger transport of Chongqing residents throughout the year. In addition, the time and space characteristics of customized passenger transport are explored. And then provide data support for relevant enterprises to provide relevant management innovation programs.