bluuebunny/crossref_metadata_2025 huggingface dataset:
Quality of sorghum silage in the feed-out period: evaluation of hybrids, silo layers, and mass structure
Authors: Neumann Mikael , Horst Egon Henrique , Restle João , Almeida Eduardo Rodrigues de , Souza André Martins de
Published: August 2021

Abstract This study aimed to evaluate the chemical and fermentation quality of silage from two sorghum hybrids in different layers of the silo feed-out face, as well as the interference of the aerobic exposure time of structured and/or unstructured silo face (after feed-out). The AG-2005E hybrid silage presented higher crude protein content and higher pH compared to hybrid AG-60298 (6.33% and 4.0 versus 6.06% and 3.8, respectively). Silages from stratum 0 to 20cm had the lowest dry matter content and the highest crude protein content (38% and 6.35%, respectively). The pH did not differ between layers, and the NH3 content was higher in the stratum 60 to 80cm (4.5%). During 72 hours of aerobic exposure, the unstructured silage presented a higher increase in temperature than the silage from the structured face, but this period was not enough to result in differences in dry matter, mineral matter, NH3, and pH. The chemical and fermentation quality of the silage was directly influenced by hybrid and silo stratum. After aerobic exposure, silage from the structured face seems to suffer less interference compared to the silo feed-out face.
Validação de métodos microbiológicos alternativos: uma visão geral
Authors: Brito Francisca Airlane Esteves de , Bezerra Lorena Cristina Rodrigues , Melo Aíris Maria Araújo , Furtado Roselayne Ferro , Borges Maria de Fátima , Figueiredo Evânia Altina Teixeira de
Published: August 2021

Resumo O desenvolvimento de novos métodos de análise microbiológica requer uma avaliação da igualdade ou superioridade deste em relação a um método padrão ouro − método rotineiramente utilizado. Este processo de avaliação denomina-se validação. O método é validado se seu desempenho estiver satisfatoriamente de acordo com os parâmetros analisados. Neste trabalho, abordamos os critérios para a validação de novos métodos de análise microbiológica da AOAC, FDA e da ISO 16140.
Low leaf sodium content improves the grain yield and physiological performance of wheat genotypes in saline-sodic soil
Authors: Saddiq Muhammad Sohail , Afzal Irfan , Iqbal Shahid , Hafeez Muhammad Bilal , Raza Ali
Published: August 2021

ABSTRACT Salt stress is a major production constraint in wheat. The maintenance of a low Na+ accumulation in the leaves may improve the tissue tolerance against salt stress. A field experiment was conducted to discriminate twenty wheat genotypes, based on leaf Na+ accumulation as a criterion for salt tolerance, and evaluate the effect of sodium accumulation on the biomass production, physiological and yield traits of wheat genotypes grown in a saline-sodic environment. The Na+ concentration was determined in young fully expanded leaves at the vegetative growth stage. The genotypes were categorized into two contrasting groups (with low and high Na+ content), in a randomized complete block design, with three replications. The low Na+ genotypes (V-03094, V-02156, TURACO, V0005 and PVN) showed much longer chlorophyll retention, leaf K+ content, proline and phenolic contents than the high Na+ genotypes. The salt effects on yield components were also less in the wheat genotypes with low leaf Na+ content than the high Na+ genotypes. The greater grain yield of low Na+ accumulating genotypes was due to the enhanced grain number and weight in their tillers, which were strongly associated with the higher Na+ efflux from the leaves. The low sodium accumulator genotypes improved the seedling emergence (%) and grain yield in saline-sodic soil.
Intervenção em favelas na década de 1980 em Curitiba e a emergência de outro paradigma em estágio embrionário
Authors: Silva Madianita Nunes da , Silva Marcelle Borges Lemes da , Vasco Kelly Maria Christine Mengarda , Furlan Débora Luiza Schumacher , Texeira Ana Gabriela , Correia Alice Dandara de Assis
Published: August 2021

Resumo O artigo analisa a política de intervenção em favelas no Município de Curitiba na década de 1980, marcada pela emergência de outro paradigma, com a substituição da erradicação pela urbanização e regularização fundiária dos assentamentos. Deriva de uma pesquisa maior, que estuda a política de intervenção em favelas no município entre 1965 e 2018, para a qual foram utilizados procedimentos de pesquisa bibliográfica, documental e de levantamento. A transformação do modelo de intervenção nestes espaços na década estudada foi também observada em outras cidades brasileiras, com experiências pioneiras que nas décadas seguintes difundem e aperfeiçoam os programas e projetos de urbanização de favelas no Brasil. Em nível local, estas mudanças derivaram do protagonismo do movimento social nos bairros da periferia, num contexto de redemocratização do país e crítica ao planejamento urbano executado nas décadas de 1960 e 1970. São reconhecidas mudanças importantes em relação à interpretação crítica do processo de favelização, à incorporação de demandas populares no desenho da política e nos projetos de intervenção e ao desenvolvimento de instrumentos e ações para consolidação dos assentamentos. Constatou-se, no entanto, que as propostas mais radicais permaneceram em estágio embrionário, avançando e se qualificando pouco nas décadas seguintes.
Grande mídia e comunicação sobre Saúde Coletiva e Atenção Primária: o desafio da produção da série televisiva “Unidade Básica”
Authors: Petta Helena Lemos , Ayres José Ricardo de Mesquita , Teixeira Ricardo Rodrigues
Published: August 2021

A grande mídia exerce considerável influência em como as pessoas apreendem as questões de saúde, impactando suas práticas cotidianas. A Saúde Coletiva, o Sistema Único de Saúde (SUS) e, em particular, a Atenção Primária à Saúde (APS) encontram ainda reduzido espaço nesse âmbito. Buscando preencher essa lacuna foi produzida a série médica televisiva “Unidade Básica”, transmitida em 2016. O presente estudo investiga limites e potencialidades no diálogo entre a Saúde Coletiva e a comunicação na grande mídia, tomando como base a produção de “Unidade Básica”. Realizou-se uma pesquisa qualitativa, de caráter compreensivo-interpretativo, sendo a primeira autora uma observadora participante. O material empírico foi interpretado à luz de conceitos considerados estratégicos para a Atenção Primária (AP) e a Saúde Coletiva. Observou-se que alguns conceitos foram potencializados no processo de criação da série, enquanto alguns se mostraram especialmente desafiadores para a comunicação, em particular o conceito de integralidade.
Incidentes e eventos adversos de segurança do paciente notificados pelos cidadãos no Brasil: estudo descritivo, 2014-2018
Authors: Villar Vanessa Cristina Felippe Lopes , Martins Mônica , Rabello Elaine Teixeira
Published: August 2021

Resumo Objetivo: Descrever os incidentes em serviços de saúde notificados por cidadãos brasileiros no Sistema de Notificação de Vigilância Sanitária. Métodos: Estudo descritivo, com base em registros no Sistema de Notificações de Vigilância Sanitária (Notivisa) da Agência Nacional de Vigilância Sanitária (Anvisa), módulo ‘cidadão’, entre 2014 e 2018. Resultados: Foram notificados 935 incidentes que, preponderantemente, ocorreram com pessoas do sexo feminino (60,9%), idosas (20,1%) e de raça/cor da pele branca (51,0%). Os incidentes mais notificados estiveram relacionados ao uso de medicamentos (50,8%), quedas (7,5%) e infecções relacionadas à assistência à saúde (7,2%), ocorridos durante a prestação do cuidado, tratamento ou cirurgia (37,3%), no período diurno (58,3%) e em hospitais (37,4%). Conclusão: Observou-se baixa adesão dos cidadãos ao sistema de notificação. Houve maior frequência de notificações de incidentes relacionados a medicamentos, quedas e infecções relacionadas à assistência. Isto evidencia o potencial dos cidadãos em reconhecer e reportar tais incidentes como problemas de segurança do paciente.
Correlation between concrete strength properties and surface electrical resistivity
Authors: Araújo Carla Cavalcante , Meira Gibson Rocha
Published: August 2021

abstract: Periodic inspections in reinforced concrete structures are important to be carried out to assess their state of conservation. In this scenario, non-destructive tests can be a suitable option since destructive tests are invasive and may be difficult to be performed in some cases. Considering this option, correlations between non-destructive test parameters and the concrete properties to be analyzed are useful tools that make easier the structure inspection. In the present work, correlations between the compressive strength (fc) and splitting tensile strength (ft) and surface electrical resistivity (ρ) of concretes were studied. Brazilian concretes of six different mixtures were analyzed at five different ages and correlation curves between strength properties and surface electrical resistivity of concrete were obtained, which are represented by the general relationships fc= 14.18·ln(ρ) + 18.43 and ft = 0.69·ln(ρ) + 2.15 for compressive strength and splitting tensile strength, respectively. In addition, a general curve considering literature data and results from this work was proposed to represent the relationship between compressive strength and surface electrical resistivity - fc = 11.89·ln(ρ) + 18.90.
Seismic reliability assessment of a non-seismic reinforced concrete framed structure designed according to ABNT NBR 6118:2014
Authors: Pereira Eduardo Marques Vieira , Cavalcante Gustavo Henrique Ferreira , Rodrigues Isabela Durci , Vieira Júnior Luiz Carlos Marcos , Siqueira Gustavo Henrique
Published: August 2021

abstract: Due to the paucity of studies regarding the seismic assessment of buildings in Brazil, this study aims to present and discuss a seismic reliability assessment of a reinforced concrete framed structure designed according to the Brazilian standard ABNT NBR 6118:2014 without the consideration of the seismic design requirements of ABNT NBR 15421:2006. Herein, fragility functions are generated through probabilistic seismic demand analysis, and integrated with hazard curves for Northeastern Brazil to generate regional failure probability maps for three limit-states: Immediate Occupancy (IO), Life Safety (LS), and Collapse Prevention (CP). The results indicated that the building performance is adequate for IO; however, for LS and CP, an unacceptable performance is observed.
LA SATISFACCIÓN ESTUDIANTIL EN LA EDUCACIÓN VIRTUAL: UNA REVISIÓN SISTEMÁTICA INTERNACIONAL
Authors: Díaz Camacho Renzo Fabrizzio , Rivera Muñoz Jorge Leoncio , Encalada Díaz Ivan Angel , Romani Miranda Úrsula Isabel
Published: August 2021

A raíz de la pandemia del SARS-CoV-2, se viene prestando mayor interés a una línea de estudio que demuestra cómo la medición de la satisfacción en la educación virtual tiene impactos positivos en la formación universitaria. En ese sentido, esta investigación presenta dos propósitos: (a) describir la conceptualización y tipología de la satisfacción en la educación virtual; y (b) identificar los beneficios y condiciones de estas en la instrucción. El método llevado a cabo, ha utilizado la declaración PRISMA de revisión sistemática y las pesquisas se recopilaron de fuentes de datos como Scopus, ERIC y EBSCO Discovery Service. En concordancia con los resultados, se ha seleccionado un total de 50 estudios internacionales, cuyo contenido aporta a la literatura científica en la sistematización de criterios conceptuales para categorizar tipos de satisfacción y también los factores condicionantes, limitantes y predominantes para la misma, como son los roles del estudiante y del profesor, el curso virtual, la conectividad, la tecnología y la gestión institucional. Además, se observan, identifican, reconocen e incorporan los beneficios obtenidos en los aspectos personales, profesionales y sociales del estudiantado. Finalmente, se expone la necesidad de desarrollar pesquisas que ahonden en cada una de las condiciones para alcanzar la satisfacción.
A course of Elementary Probability Course
Authors: LO Gane Samb , Niang Aladji Babacar , Okereke Lois Chinwendu
Published: August 2021

This book introduces to the theory of probabilities from the beginning. Assuming that the reader possesses the normal mathematical level acquired at the end of the secondary school, we aim to equip him with a solid basis in probability theory. The theory is preceded by a general chapter on counting methods. Then, the theory of probabilities is presented in a discrete framework. Two objectives are sought. The first is to give the reader the ability to solve a large number of problems related to probability theory, including application problems in a variety of disciplines. The second is to prepare the reader before he takes course on the mathematical foundations of probability theory. In this later book, the reader will concentrate more on mathematical concepts, while in the present text, experimental frameworks are mostly found. If both objectives are met, the reader will have already acquired a definitive experience in problem-solving ability with the tools of probability theory and at the same time he is ready to move on to a theoretical course on probability theory based on the theory of Measure and Integration. The book ends with a chapter that allows the reader to begin an intermediate course in mathematical statistics.
Populating NCBI template for submissions using BioNumerics v7.6 v1
Authors: Timme Ruth , Balkey Maria , Haendiges Julie
Published: August 2021

PURPOSE: to define the standard operating procedure for collecting isolate metadata using BioNumerics for submission of food/environmental isolates to NCBI. SCOPE: to provide a standardized procedure to collect isolate metadata using BioNumerics for submission of food/environmental isolates to NCBI. RESPONSIBILITIES- SOP Responsible Officials: Ruth Timme, Maria Balkey The GenomeTrakr Network Management will be responsible to monitor GenomeTrakr submissions processed through Bionumerics and ensure that all GT labs are familiar with the mandatory metadata fields required for submission of GenomeTrakr sequencing records to NCBI.
Acute doses of beetroot juice supplementation on aerobic and anaerobic performance of trained male taekwondo athletes v1
Authors: Miraftabi Hossein , Avazpoor Zahra , Berjisian Erfan , Sarshin Amir , Rezaei Sajjad , Domínguez Raúl , Reale Reid , Franchini Emerson , Hossein Samanipour Mohammad , S. Koozehchian Majid , E.T. Willems Mark , Rafiei Ramin , Naderi Alireza
Published: August 2021

Studies have shown that Nitrate (NO3-) rich beetroot juice (BJ) supplementation improves endurance and high-intensity intermittent exercise. The dose-response effect on taekwondo of BJ supplementation are yet to be determined. This study aimed to investigate two acute doses of 400 mg of NO3-(BJ-400) and (800 mg NO3- (BJ-800) on taekwondo-specific performance tests compared with a placebo (PL) and control (CON) conditions. Eight trained male taekwondo athletes (age: 20±4 years, height: 180±2 cm, weight: 64.8±4.0 kg) completed four experimental trials using a randomized, double‐blind placebo‐controlled design: BJ-400, BJ-800, PL, and CON. Countermovement jump (CMJ) was performed before the Multiple Frequency Speed of Kick Test (FSKT) and Progressive Specific Taekwondo Test (PSTT), respectively, whereas cognitive function was assessed (via the Stroop test) before and after supplementation and 10 minutes following PSTT. Blood lactate was collected before the CMJ tests, immediately, and 3 minutes after the FSKT and PSST, with rating of perceived exertion (RPE) was recorded during and after specific taekwondo tests. Nosignificant difference between conditions were observed (p> 0.05)for PSTT and FSKT performances. In addition, blood lactate, RPE, heart rate, and CMJ height and performance during the specific taekwondo tests were not significantly different among conditions (p> 0.05). However, after the PSTT test, cognitive function was higher in BJ-400 compared to other treatments (p< 0.05). In conclusion, acute intake of 400 and 800 mg of NO3-rich BJ did not improve taekwondo-specific performance tests in trained male taekwondo athletes.
The sense of mineness in personal memory: problems for the endorsement model
Authors: Trakas Marina
Published: August 2021

What does it take for a subject to experience a personal memory as being her own? According to Fernández’ (2019) model of endorsement, this particular phenomenal quality of our memories, their “sense of mineness”, can be explained in terms of the experience of the mnemonic content as veridical. In this article, I criticize this model for two reasons: (a) the evidence that is used by Fernández to ground his theoretical proposal is dubious; and more importantly, (b) the endorsement model does not accommodate many non-pathological everyday memories that preserve their sense of mineness, but whose veridicality is explicitly denied, suspected, not automatically endorsed, or neither denied nor endorsed. Finally, I sketch two alternative explanations: one also problematic, the other one more promising, and present some normative advantages of the latter. This also displays the undesirability of the endorsement model from a normative perspective.
Dinámicas de la producción científica colombiana en economía
Authors: Gómez Velasco Nubia Yaneth , Gregorio Chaviano Orlando , Ballesteros Alfonso Alba Lorena
Published: August 2021

El objetivo del artículo fue evaluar las tendencias de la producción científica en economía con afiliación institucional colombiana durante el  periodo 2007 a 2019. Se realizó un análisis bibliométrico a partir  de la información registrada en Scopus, mediante indicadores de producción, impacto y colaboración y del método de análisis exploratorio cuantitativo, usando los programas Biblioshiny, Vantage Point y VosViewer. se estudió el comportamiento de autores, revistas y temas de mayor visibilidad de publicación tales como innovación y crecimiento económico. Las principales tendencias de la producción científica de autores colombianos con mayor publicación en Scopus, presentan una tasa de crecimiento promedio anual del 13%, además de publicaciones en revistas de reconocido prestigioe importantes redes de colaboración nacional e internacional y predominio de publicaciones en coautoria (índice de 1,8), ampliando la conexión no sólo a nivel de las instituciones de educación superior, sino a través de los institutos de investigación. El conocimiento de las dinámicas de la investigación disciplinar resultado del estudio, aportó información clave para la gestión de la actividad científica y el diseño de futuras investigaciones en el país.
La crítica literaria sobre la literatura de la Violencia en Colombia: aproximación a una reevaluación
Authors: Betancur Echavarría José Manuel
Published: August 2021

En este artículo se revisan los principales postulados de la crítica literaria sobre la narrativa de la Violencia en Colombia con el fin de señalar algunas de las imprecisiones que se han transmitido y consolidado en la comprensión del fenómeno. A través del análisis del contexto literario colombiano para la época se pretende comprender las causas que desembocan en dichas imprecisiones. Asimismo, se busca reevaluar el uso que estos estudios críticos le han dado al concepto de «testimonio», fundamental para la evaluación literaria de las obras que componen el corpus de la literatura de la Violencia.
El arte apolíneo y el arte dionisíaco en El caso Morel, de Rubem Fonseca
Authors: Salazar Bohórquez María Isabel
Published: August 2021

Este artículo analiza la concepción del arte que expresan los personajes de El caso Morel (1973) y su influencia en la evolución de su comportamiento y el desarrollo de la trama, especialmente en el ámbito sexual. Se emplea como eje teórico la diferenciación nietzscheana entre el arte apolíneo y el dionisíaco. En la novela se configura un tipo de policial denominado «policial dionisíaco», dadas sus características afines a las de dicho concepto. La predilección de los personajes Morel y Joana por el arte dionisíaco los lleva a tener una vida transgresora que imita y se inspira en el arte.
Dictionary Writing Systems y otras herramientas informáticas para la elaboración, administración y publicación de diccionarios
Authors: Rubio López Ruth Yanira , Bonilla Huérfano Johnatan Estiven , Bernal Chávez Julio Alexander
Published: August 2021

Este texto se centra en describir el funcionamiento, los componentes, las características principales y algunos ejemplos de los Dictionary Writing Systems (DWS), los cuales son herramientas informáticas fundamentales para la escritura y administración de diccionarios. Esto implica la automatización en algunos procesos de escritura de las entradas, el uso de bases de datos de diccionarios para otros propósitos, la facilidad de trabajo en equipo de forma remota, entre otros. Estas funcionalidades se vinculan con el tipo de DWS u otras herramientas, y los tipos de diccionarios o fines para los que fueron diseñados.
Los universitarios: expectativas de movilidad social en los “años dorados” de la UNAM, 1954-1966
Authors: Luna Elizarrarás Sara Minerva
Published: August 2021

El texto explora las narrativas de movilidad social asociadas a la educación superior que expresaron estudiantes, padres de familia y autoridades universitarias durante un periodo conocido como la “época de oro” de la UNAM. El análisis entreteje los discursos de movilidad plasmados en fuentes archivísticas y hemerográficas con datos referentes al crecimiento y perfil de la matrícula. Muestra así que la pertenencia a esa institución consolidó su peso como marcador de diferencia social con importantes diferencias de género en un contexto de transformación urbana y cultural.
Los padrones de población de 1824. Espacio social y estructura socioeconómica en Lima
Authors: Cruz Fonseca Mariana , Montalvo Salcedo Enmanuel
Published: August 2021

Este artículo presenta y analiza el inconcluso padrón de población de Lima de 1824, encontrado recientemente en el Archivo Histórico Municipal de Lima, con el doble propósito de presentar su contenido y llamar la atención hacia las posibilidades historiográficas de varios corpus de información fragmentaria sobre la demografía limeña, realizados durante la temprana República. A partir del análisis de dos barrios, se realiza un acercamiento microscópico a la estructura socioeconómica de la ciudad para lograr explicar el perfil de ambos y aportar al estudio de su caracterización sociodemográfica en un periodo convulso y de continua movilidad.
Accountability Revisited: Parliamentary Perspectives on the Inter-Parliamentary Conference on Stability, Economic Coordination, and Governance
Authors: Borońska-Hryniewiecka Karolina
Published: August 2021

This article aims to verify whether, and to what extent, the Inter-Parliamentary Conference on Stability, Economic Coordination and Governance (IPC SECG) has become an accountability enhancing arena through which domestic legislatures can better scrutinize the process of the European Semester. While there is a broad scholarship on the difficult institutionalization of the IPC SECG and controversies related to its operation, little has been said about its actual performance as an accountability enhancing platform, especially in the context of domestic interactions between parliaments and executives in the area of economic governance. Despite it being operational for several years, the scholarship lacks focus on the national parliaments’ perspective with regard to this Conference’s effectiveness. Against this background, drawing from comparative data obtained from questionnaires and interviews, this article addresses the above-mentioned aspects from an actor-oriented approach and delves deeper into parliamentary perceptions of the SECG Conference. Findings indicate that attendance at the SECG Conference by MPs has neither significantly affected their domestic parliamentary activity in the area of economic governance and budgetary policy, nor improved the existing domestic legislative-executive relationship in this context. The Conference’s procedural weaknesses are only one part of the problem, another being the marginalized domestic position of parliaments in the European Semester procedure.
The Work Program of Individual and Group Correctional Classes for Students 5–9 Classes with Mental Retardation “Stages of Development”
Authors: Bekmuhambetova A.
Published: August 2021

The program belongs to the category of “psychological correction of behavior and developmental disorders of students” and is aimed at the development of personal self-regulation and prevention of deviant behavior in adolescents with mental retardation (MR). Adolescents with MR are characterized by “loose” connectivity between the structural components of self-regulation, which manifests itself in a weak interdependence and mutual influence on each other of indicators of activity, reflection, value orientations and moral ideas. The weakest in regulation are reflection, the value of responsibility, value-I, self-guidance and moral ideas. Modern studies of domestic and foreign authors show that children with MR have a high risk of behavioral disorders, which becomes most obvious in adolescence and necessitates targeted correctional work with children of this category. Results of research in 2009 made by T.N. Matantseva showed that adolescents with MR have the potential for personal development and the formation of personal self-regulation, subject to the appropriate organization of correctional and developmental work. Personal self-regulation acts as a functional means of the subject, allowing mobilizing personal and cognitive resources for the implementation of activity and achievement of meaningful goals.
Psychological and Pedagogical Support of Young Children with Disabilities and the Risk of Developing Disability, Families Raising Them, in the Conditions of the Center for Psychological, Pedagogical, Medical and Social Assistance
Authors: Tokareva I.A. , Soboleva M.E. , Zagoskina T.V. , Silinskaya Y.P.
Published: August 2021

The article describes the practice of complex psychological and pedagogical support of families raising children with disabilities and the risk of developing disability, in the conditions of a center for psychological, pedagogical, medical and social assistance. The experience of opening an early assistance service in order to ensure the timely identification of children with disabilities, children at risk of developing disabilities is discussed. The organization of psychological and pedagogical support of families with the help of mobile teams of specialists is considered. The systematic work to improve the psychological and pedagogical competence of parents raising young children is presented, as well as various forms of work with the target group: the advisory and methodological club “Help your child” for parents (legal representatives) raising children with disabilities and children of the "risk groups " in early age, home visits, intervision of difficult cases.
On the Relationship among User’s Reading Behavior, Algorithm Recommendation Mechanism and the Manufactured Filter Bubbles Effect
Authors: Tianyi Zhou, Yunqian Zhou Yun Zhao,
Published: August 2021

This paper analyses the causal logic of algorithm recommendation and it employs the Pielou index to measure the distribution of news contents to provide empirical evidence to indicate whether the algorithm recommendation mechanism may produce filter bubbles. Moreover, this research takes Headlines Today as the research object to better understand the realization of tailored news and how their reading behaviour affect the algorithm recommendation mechanism. Meanwhile, the conclusion reinforces that users should enhance their information literacy in the era of artificial intelligence and big data, make rational use of algorithm recommendation mechanism, and pay close attention to the diversity of information sources to avoid information bias. This paper also helps the information flow platform to reflect on the shortcomings of the algorithm mechanism and optimise its strengths while avoiding those manufactured negative effects and proposes that in the optimisation of algorithm recommendation mechanism, the positive guidance to users should also be emphasised. Indicators such as content influence and mainstream media recommendation can be added to generate a multi-index recommendation.
Structure Design and Experimental Study of Pin-Cycloidal Planetary Reducer for the Pitch of High-Power Wind Turbine
Authors: He Weidong Lu Qi,
Published: August 2021

In recent years, with the development of manufacturing technology and production capacity, wind power industry has been developed rapidly.A new type of pin-cycloidal planetary reducer was proposed in this studyfor the actuator of the pitch of high-power wind turbines. Based on the transformation mechanism method, the transmission efficiency of the reducer was calculated by analyzing the pin-cycloidal meshing efficiency, bearing efficiency, and output mechanism efficiency. Prototype testing were combined to systematically and deeply study the design theory of the reducer for the pitch of high-power wind turbines. Finally, a new design was proposed for a reliable two-stage pin-cycloidal planetary reducer with a strong bearing capacity and multi-tooth meshing on the hard gear surface that can be applied to the pitch system of high-power wind turbines.
The Value Chain Analysis and Optimization Strategy of Navel Orange Industry
Authors: Xuefeng Wang Fang Yang,
Published: August 2021

Based on the interview survey data of the value-added activities, the value-added ratio, cost structure and profit distribution in various industry value chains of navel orange of China are analyzed. In order to increase the income of navel orange farmers and promote the industrial development, the optimization strategies are put forward from the high value-added circulation activities and vertical integration of industrial leading enterprises.
A Design Method for Low-cost and SOPC-based Flexible Lifting Control System
Authors: Yongping Zhang, Guojun Li Dechun Zheng, Li Xu,
Published: August 2021

To efficiently reduce the development and production costs of the intelligent lifting control system, we introduce a design method for the intelligent lifting system with client-server architecture. We replace DSP processor core or DSP (Digital Signal processor) core with Nois II soft-core processor so that the design and production costs can be effectively cut. By replacing DSP processor or DSP processor core with Nois II soft-core processor, the design and production costs can be significantly reduced. In our design, loop vector control units work as a server processor, and a central computing unit with four independent multipliers and two adders is employed, with the implementation method based on a state machine. The experimental results prove effective in reducing resource requirements for FPGA (Field Programmable Gate Array), show that the proposed method can be successfully applied to the implementation of a complete intelligent flexible lifting control system on a low-end Altera Cyclone FPGA, and servo motor control achieves better dynamic performance
A Novel Mathematical Formal Proof in Zhang-Wang's Cryptographic Algorithm
Authors: Sonia C-I Chen Junwei Yang, Xiangkun Tong, Chenglian Liu,
Published: August 2021

Formal verification is to use mathematical methods to prove that our scheme is correct. This scheme is just a pronoun. It may be expressed as a hardware, a software or an algorithm. Errors in hardware are more difficult to modify than errors in software, so formal proofs and inspections often appear in the argument for hardware design. But, it does not mean that the software does not need to be formally verified. In addition to digital circuits or combinational circuits, cryptographic protocols also need to be formally verified. Formal proof can only ensure whether the result of logical inference is consistent with the previous stage, and can not guarantee whether there are defects in the process of logical inference. In this article the authors take as an example of Zhang-Wang's digital signature algorithm, and point out two formal proof methods of Boolean algebra and Galois field respectively.
Reconstruction of Two-dimensional Image to Three-dimensional Point Cloud Data for Detection of Empty Rot Defects in Tree Growth
Authors: Keqi Wang Shufeng Jiang,
Published: August 2021

In the application of nondestructive detecting of trees, it is a technical problem to use radar waves to detect tree specimens with growth defects, how to segment defect areas after obtaining two-dimensional images, and reverse simulate the detection results with three-dimensional point cloud data. Therefore, the method of extracting boundary information according to color features is studied to extract the boundary curve of empty rot area, and the selection of higher precision extraction algorithm is determined by comparing the boundary extraction results of HSV color space and RGB color space in laboratory According to the extracted void boundary curve, the reverse modeling is carried out, and the mapping from 2D inspection gray image to 3D space is realized, The point cloud data reconstruction needed for 3D modeling of multi-curved surfaces is obtained in reverse. The boundary curve extraction algorithm in this study is used to process the images of nondestructive testing of trees. Through comparative experiments and error analysis, the accurate modeling conclusion from inversion of 2D images to 3D point cloud data reconstruction by radar wave detection is verified, and the Core issue problem of point cloud reconstruction in the ill-conditioned area of tree growth and decay detected by radar wave is solved.
Application of Analytic Hierarchy Process in Evaluating Higher Industry Vocational Colleges Financial Performance
Authors: Et al. Caiqin Chen,
Published: August 2021

The financial performance should be evaluated from the perspective of stakeholders in higher vocational colleges firstly. And according to the development status of higher vocational colleges in recent years, a set of evaluation index of financial performance with characteristics of higher vocational colleges should be divided into five major dimensions: the performance of talents training, teaching performance, scientific research performance, performance of social services, logistics support performance. Hence, the financial performance evaluation model based on AHP and five major dimensions is established to solve the major theoretical and practical issues of financial performance evaluation and monitoring in higher vocational colleges. We also try to evaluate the financial performance of some benchmark industry and engineering vocational colleges applying the AHP model. Using statistical program R to analysis the panel data, the results show that the reasonable standards and clear directions can improve the financial performance in higher vocational colleges.
Cluster Analysis of Stations Based on Weight SimRank in Sharing Bicycle
Authors: Et al. Bo Guan,
Published: August 2021

With the increasing popularity of shared bikes, the indiscriminate parking of bicycles in cities has increasingly become a difficulty in urban management. The tidal phenomenon of large numbers of urban residents during rush hour is the root cause of the indiscriminate parking of bicycles in many subway stations and commercial areas. Optimizing the scheduling strategy of shared bikes is one of the effective solutions to solve the problem of random parking and reduce the scheduling cost. The cycle is a short - distance vehicle, and its circulation law is in line with the characteristics of the small world of urban traffic. That is, most of the bikes flow within the small world region, while only a small part of the bikes flow between the small world regions. With the massive accumulation of bike-sharing borrow and return data, the method of clustering the borrow and return stations and dividing regions according to the clustering results has attracted the attention of industry experts and researchers. it is effectively to apply in intelligent scheduling related industries. Although there have been some studies on the station clustering in the current literature, because these studies are basically based on the fixed features of the site (site location, pile number, etc.), the results cannot find an effective small world region of bicycles. In order to find out the effective small world region of bicycles, we introduced the idea of SimRank (that is, the similarity of a station is due to the similarity of its bicycle source station and destination station), and assigned weights to association relationships (the number of times of borrowing and returning) to define the similarity algorithm w-SimRank of stations. Then, the station clustering was done in line with skyline thinking. Finally, in order to verify the effectiveness of the algorithm, we implemented the station clustering based on SimRank algorithm, and compared the clustering effect with the W-SimRank algorithm proposed in this paper to verify the effectiveness of the W-SimRank algorithm, and analyzed the influence of the key parameters of the algorithm on the algorithm. And then
Evaluate Students' Attitudes towards the Information Industry Chain of P.E. Based on Data Visualization Technology: A Cross-sectional Study
Authors: Et al. Feilong Wu,
Published: August 2021

Based on data visualization technology, it expounds the attitude of Chinese college students to the P.E. information distance education industry. The research mainly uses attitude questionnaires to conduct cross-sectional surveys based on the Internet of Things, and uses data visualization technology to evaluate students' attitudes and opinions on informatized sports distance education. Our survey results show that in the online physical education courses carried out during the school blockade, students have a positive attitude towards informatized physical education, and the online teaching effect provided by the school is satisfactory. According to the vertical total score percentage of 16 measurement indicators, we can see that we strongly agree (364.22%), agree (439.37%), uncertain (422.28%), disagree (242.9%) and strongly disagree (130.854%). It can be seen that even if the school is blocked, students show a higher enthusiasm for information-based physical education.
An Effective Feature Extraction Method of Quantitative Recognition of Ultrasonic Echo for Bonding Quality of Composite Sheet
Authors: Bateer, Bingqing Gao Dong Li,
Published: August 2021

In this paper, a set of effective ultrasonic echo feature extraction method is proposed for the quantitative identification of thin plate composite bonding quality, which opens up a new research idea for the research of ultrasonic echo feature extraction for quantitative identification of thin plate bonding quality, and also lays a foundation for further quantitative identification of bonding structure debonding degree of thin plate. In addition to the time and frequency domain analysis, the empirical mode time-frequency analysis method is used to highlight the time-frequency characteristics of the echo signal, improve the resolution of the signal analysis, and expand the space for the echo signal feature extraction. The feature validity evaluation theory of fault diagnosis is introduced to evaluate the feature validity of high-dimensional signal parameters, and the invalid signal parameters are eliminated to obtain an effective echo signal feature set with low dimension. Using the exhaustive search strategy of feature selection theory, geometric distance measurement and information measurement evaluation criteria, and through the classification verification of support vector machine classifier, the effective feature vector for quantitative identification of adhesive quality is obtained.
Influencing Factors of Learning Experience in Online Large-Class Teaching ——Semantic Analysis Based on Students’ Classroom Feedback Language Materials
Authors: Liu Qing
Published: August 2021

As the learners' perception and reaction in multiple aspects during the course learning, learning experience is of great importance for the study of educational evaluation and the optimization of teacher teaching and teaching management. According to the text semantic analysis and questionnaire survey on students' learning feedback in online large classes,the NLPIR-Parser big-data semantic intelligent analysis platform is used in this paper to carry on keywords extraction and analysis, text sentiment analysis, text clustering and abstract extraction after the processing of original corpus, and then SPSS22.0 software is used to conduct Pearson correlation analysis on the score of text sentiment and the statistical data of questionnaire survey.The results show that the results of text semantic analysis and questionnaire survey have the consistency in positive learning experience; students' negative emotional experience has a significantly reverse correlation with learning effect score; teacher teaching, student learning,course characteristics and learning environment are proved to be the main influencing factors of students' learning experience, in which, teacher teaching plays a leading role. Then, the specific thinking of improving students' learning experience is put forward on the basis of research results.
Assessment and Introspection of Gifted Programming of USA: From the Perspective of Industrialization of Educationof Giftedness and Practice of Gifted Education Teachers
Authors: Zhengxin Zhu, Ping Leng Songzhu Mei,
Published: August 2021

For a long time, the U.S. government has paid great attention to gifted education, issuedmany educational acts and standardized about gifted education, whichprovides high effect in the fields of theory, model and practice of gifted education. From the perspective of industrialization of Educationof giftedness and practice of gifted education teachers, six aspects of standards are analyzed, including studying and development, identification and evaluation, curriculum and teaching, learning environment, project implementation and professional development of gifted education teachers. Combining the actual conditions of gifted education in China, several enlightenment could be drawn as setting goals by educational outputs, adhering to fair principle, paying attention to growth environment, focusing on professional development, perfecting the systems of evaluation and supportinggifted programming for expecting long-term returns.
A Novel Fast Decision-making Method Based on Integrated Intelligent Technologies for Wind Disaster Management of Energy Manufacture
Authors: Et al. Baishang Zhang,
Published: August 2021

Energy manufacture is very important to all of industries. Typhoons hit the power grid in China's southeast coastal areas frequently for the past few years, seriously affecting the industries’ operation. Therefore, making-decision of wind damage management for nation's electricity grid in real time is an urgent subject to be studied. The traditional decision making method is easy to be implemented, but is not proper for dealing with nonlinear problems in complex systems. The purpose of this article is to design a fast decision making framework for accomplishing fast decision making by making combination Case-Based Reasoning (CBR) with Rule-Based Reasoning (RBR), Genetic Algorithm (GA), which is called fast decision making method based on integrated intelligent technologies (FDMMBIIT). Compared with traditional methods, FDMMBIIT completes case adaptation with BPNN after extending case base. To make the decision-making more accurate, this article updated the multi-object genetic algorithm (MOGA) with adaptive genetic operators and a selection method by using the fitness function. Likewise, BPNN is improved with adaptive simulated annealing algorithm (ASAA), which is named as BPNNASAA. More important, this paper expands the frame theory by integrating it to the D/S evidence theory, exploring a novel solution to representing cases with incomplete information. The case of Guangdong demonstrates FDMMBIIT achieves better decision-making performance for storm disaster emergency management.
Research on Parametric Modeling Technology of Weaving in Micro-Architecture Manufacture
Authors: Et al. Changzheng Gao,
Published: August 2021

With the assistance of parametric technology, micro-architecture design based on weaving is easier to express and apply accurately. This paper analyzes the parametric modeling principle of weaving in micro-architecture design, and studies the parametric modeling technology of weaving motif micro-architecture with the example of micro-architecture shared station design. The conclusion shows that the core parameter model of micro-architecture with weaving motif includes parallel line weaving micro-architecture, gradual weaving micro-architecture and random weaving micro-architecture, each of which has its own corresponding micro-architecture function, and the parameterization technology has an obvious optimization effect on the micro-architecture's envelope shape and manufacturing. Based on this, the combination of micro-architecture and advanced modeling technology is preliminary discussed to promote the design of micro-architecture to be more efficient, ecological and innovative, to promote the upgrading of micro-building manufacturing engineering.
Characteristics and Interventions of Bullying Behavior of Teenagers under the Background of Informatization
Authors: Liu Junping
Published: August 2021

With the rapid development of industrialization and informatization, the significant improvement of human civilization, people pay much more attention to education and mental health, especially the mental health of teenagers. In recent years, the impact of campus bullying on adolescents' physical and mental health has aroused widespread social concern. A self-designed questionnaire is used to investigate 392 teenagers in the research. The characteristics and related factors of bullying and being bullied of student among three grades areexplored, and targeted intervention measures are explored. The result shows that compared with senior students, junior students are more involved in bullying behavior. Bullying behavioris closely related to class factors: bullying behavior often starts from classmates, and occurs mostly in classrooms. Interpersonal relationship, affection to the class is negatively correlated with the frequency of bullying and being bullied. A multi-level intervention system of "school, class and individual" need to develop mainly by prophase prevention, class construction and peer counseling.
Risk Analysis of Transmission Line Patrol Based on DEMATEL Method
Authors: Et al. Meiyu Li,
Published: August 2021

As the scale of power network construction increases, transmission lines that undertake transmission tasks are facing greater challenges in patrol and maintenance work. Therefore, analyzing the factors that affect transmission line patrol and maintenance has become an urgent problem in the power industry. This paper analyzes the influencing factors from the four dimensions of natural risk, transmission operation risk, transmission line risk, and other man-made risks, and uses the DEMATEL analysis method to identify the relationship between different factors, and obtains the key influencing factors, and then proposes Corresponding strategies to deal with the risk of transmission line patrol, hope to have a certain reference effect on the patrol work, so as to ensure the stability of transmission lines.