bluuebunny/crossref_metadata_2025 huggingface dataset:
Study on the Development Law of Downward Cracks with Multi Seam Superimposed Mining
Authors: Gao Ying , Li Tao , Kou Guigui , Ji Zhuoli
Published: December 2022

Coal mining has produced a large number of shallow cracks (“downward cracks”), which cause water and soil loss and ecological degradation. Coal mining has a huge impact on the ecological environment. This phenomenon is further aggravated by the superimposed mining of multiple coal seams. This study takes the two geomorphic conditions of wind beach and loess ridge as the research background. Based on the selection of typical working faces, the development law of downward fractures in multi coal seam superimposed mining has been studied by means of field geological survey, statistical analysis, numerical simulation and borehole logging. The results show that the downward cracks development laws of wind beach landform and loess landform are different when a single coal seam is mined. The depth and width of downward cracks produced by coal mining in wind beach landform are smaller, the cracks spacing is more stable, and there is no hidden cracks development. As the downward cracks of coal mining under the loess landform is more complex, the development law of downward fissure of multi coal seam superimposed mining under the loess landform has been further studied. There is no significant change in surface cracks in multi seam superimposed mining compared with single seam mining, but the density of hidden cracks is higher in multi seam superimposed mining. After the superimposed mining of coal, the density of hidden cracks increased by 100%, and the average height of hidden cracks increased by 60.95%. The research results provide key parameters for the treatment of multi seam superimposed mining subsidence areas under different geomorphic conditions.
Study on the Deformation and Stress of the Core Wall Rockfill Dam with Different Interface Model
Authors: Bai Zhijun , Zhong Minglu , Deng Fang , Peng Kai , Zhang Jialin
Published: December 2022

The interface mechanics characteristics between core wall soil and upstream and downstream filter material were analyzed with different interface model by FEM. The deformation and stress of the dam rockfill were compared with the ideal elastic-plastic model, the hyperbolic model, the rigid-plastic model, respectively, and compared to the case of without interface. The distribution of deformation and stress between filter material and the core wall were studied with different interface model. The core wall arch effect was calculated under the conditions of without contact element and with interface between core wall and rockfill respectively, and its shows that when setting the contact element can more reasonably reflect the core wall arch effect.
Investigation on Life Cycle Cost Analysis of Structures Based on Improved Life-365™ Model
Authors: He Diaolin , Liang Tao , Liang Hao , Zhou Jikai
Published: December 2022

This paper proposes an improved Life-365™ model, which is used to life cycle cost analysis. The main content is as follows: (1) The existing Life-365™ model was improved based on artificial neural networks, and the predicted results of the improved model were in good agreement with the experimental data. (2) Adding fibres to concrete can improve the durability of the structure, but is unable to reduce the life cycle cost of structure. (3) The use of BFRP reinforcement instead of steel improves initial construction costs and reduces later maintenance costs. When the 100-year design life is reached, the life cycle cost of a BFRP reinforced fibre concrete structure is 40.61% lower than that of a reinforced concrete structure.
Study on Reinforcement Design Method of Rail Anti-Slide Pile for Open Pit Slope
Authors: Jin Lingxiao , Gao Wenmei , Liu Ze , Zhang Biao , Wu Yating , Ma Zhaoyun
Published: December 2022

Because of the outstanding anti slide ability of pile group, simple construction and low cost, the use of rail anti slide pile to strengthen the slope of open-pit mine has been favored by many mining enterprises. However, the existing research is mainly based on engineering experience and numerical analysis, and there is still a lack of corresponding research on the design theory and method of strengthening slope with iron anti slide pile. By analyzing the actual characteristics of slope reinforced by rail anti slide pile group, an analysis model is established based on the criteria of geometric equivalence and strength equivalence. The model considers the influence of rail pile and slope soil strain softening, and on this basis, an analysis method is established. The centrifugal model test is used to verify the proposed slope stability analysis method strengthened by rail anti slide pile. The results indicate that the analysis methods can well reflect the instability and failure of the slope for the unreinforced slope and the slope strengthened by rail anti slide pile. Taking the actual project as an example, the design method proposed in this study is adopted to design the slope reinforcement scheme in view of the problem that the slope deformation of the waste dump along the slope increases. The monitoring results show that the slope deformation is well controlled and the reinforcement effect is obvious.
The Classification Method of Urban Architectural Styles Based on Deep Learning and Street View Imagery
Authors: Sun Haozun , Xu Hong , Wei Quanfeng
Published: December 2022

The task of identifying urban architectural styles occupies a very necessary position in the fields of construction of smart cities, sustainable urban development and community regeneration. The research method proposed in this paper can improve on the inconveniences of traditional methods of identifying urban architectural styles, such as: the community building is relatively old, and the integration of more periods of architectural style can significantly affect the test results. It is an established fact that data cannot be collected and processed efficiently by humans alone, and can not enter such qualitative and descriptive research methods into the computer for auxiliary research. This paper is based on the explosion of information data use in the 21st century, and use deep learning technology to process unstructured data with convolutional neural networks as the core to assist in the identification of urban architectural styles. With the rapid development of deep learning technology in recent years, its classification techniques for identification of street images of urban buildings can be used for urban management, and a new strong underpinning for the allocation of urban resources, urban diversification management, and the transformation of old communities in the later period has been provided by the proper classification of urban architectural styles. Notwithstanding its restrictions, the approach presented in this research has shown promise and the valuable value of deep learning-based techniques for the study of architectural styles, and this approach has universal significance.
Spatial Organization and Efficiency Optimization of College Student Apartments
Authors: Qu Wanying , Zhao Chunbo
Published: December 2022

After the outbreak of era, as a densely crowded residential buildings and the space types where students stay for the longest time, the demand of the public function is larger than ever. At the moment, the old college student flats are inefficient and backward in terms of space organization and efficiency, and they are far from the use demand for apartments among students in the current period. This paper analyzes the current status of student apartments, investigates the needs of college students for apartments, discusses the ways of spatial organization and efficiency optimization, and optimizes the spatial organization and resources according to the characteristics of intensive student apartments in the post epidemic era through the field inquiry, questionnaire survey, on-site consultation and data collection from student dormitories, in order to provide a new direction for solving the needs of students and the lack of apartment functions.
Analysis of Hydrogeological Conditions and Geological Environment Problems in a Gold Mining Area
Authors: Li Chenchen , Zhang Yanhua , Dong Mao , Zhou Weixia
Published: December 2022

A gold mining area is a floor water-filled deposit dominated by karst fissure water of Maokou Formation. The roof is blocked by silty mudstone of Longtan Formation, and a large amount of karst develops below the water-resisting roof, so the water-filled conditions are complicated. It was reported that the water inrush accident has occurred in the 1097 section of the mining area, which has not caused heavy casualties, but the water inrush from the karst aquifer of the floor is still a hidden threat in the mining area. Through field geological investigation, the hydrogeological conditions of the mining area are analyzed, the water filling factors of the deposit are found out, and the possible environmental geological problems caused by mining and the prevention measures are put forward, which provide a scientific basis for safe mining.
Engineering Effect Test and Inspection of the Evolution of the Seabed Level near the Artificial Island of the Hong Kong-Zhuhai-Macao Bridge
Authors: He Jie , Xie Zhizheng
Published: December 2022

The Hong Kong-Zhuhai-Macao Bridge is located at the mouth of Lingdingyang Bay. The east and west artificial islands are on both sides of the Lingdingyang Dahao Deep Channel. The waters of the artificial islands are deep and rapid, and the currents impact the artificial islands frontally, which is likely to cause major changes and adjustments in the underwater topography near the artificial islands, eventually forming a new pattern of the local beach evolution centred on the artificial islands. In the engineering design stage of the bridge, the Lingdingyang two-dimensional tidal current and sediment mathematical model was used to simulate the underwater topography near the artificial island of the Hong Kong-Zhuhai-Macao Bridge based on the verification of the measured basic data. The simulated results show that the impact of the artificial island on the water and sand environment of the Lingdingyang waters is concentrated in the waters of 5 km upstream and downstream of the artificial island. The results of the erosion and deposition changes of the underwater topography before and after the construction of the artificial island from 2009 to 2019 show that the trend of the seabed erosion and deposition changes caused by the construction of the artificial island is basically consistent with the prediction results of the mathematical model, which provides good evidence for the applicability of the mathematical model.
Analysis of the Characteristics of the Kinetic Energy Converter of the River Flow
Authors: Ravin Alexander , Proskuryakov Kirill , Korovin Andrey
Published: December 2022

Among the environmentally friendly methods of energy production, hydropower occupies an important place, and in particular, autonomous low-power kinetic energy converters of river flow intended for use in areas of the country remote from global electricity distribution systems. The subject of the research in this article is a free-flow wing-type converter designed for use as a drive for hydraulic pumps of an irrigation system. The influence of the parameters of river flows (flow velocity, width and depth of the channel) on the choice of design of the kinetic energy converter is considered. In order to simplify the design and increase the reliability of the kinetic energy extraction device from the river flow, a scheme is proposed for direct (without intermediate conversion of mechanical energy into electrical) transmission of the movements of the converter’s working bodies to the rods of reciprocating irrigation pumps. The analysis of static and dynamic characteristics is carried out.
Study on the Influence of Ship Speed and Ship Weight on Ship-Bridge Collision Force
Authors: Peng Keke , Pan Qiming
Published: December 2022

Based on finite element method, combined with numerical simulation, the calculation algorithm of ship-bridge collision effect is given. The general formula of impact force is derived at first. Then, in order to obtain the functional relationships between ship speed, ship weight and collision force, a four continuous rigid frame highway channel bridge is taken as an instance of real bridge, the influence of ship weight and ship speed on the impact force during the ship bridge collision was analyzed. By using ANSYS / LS-DYNA software, the three-dimensional simulation dynamic finite element model of ship bridge collision was established. Numerical simulation calculations were carried out for the crest value of impact force of the ship bridge under the above two factors. Subsequently, statistical fitting analysis was carried out on calculation results. Based on numerical simulation results, the linear function relationships between the crest value of impact force and the secondary root of the ship weight and the ship speed are obtained, which provides a basis for the crest value of impact force in bridge anti-collision design.
Microseismic Activity Characteristics of Surrounding Rock Under Shaft Excavation Disturbance at Yebatan Hydropower Station
Authors: Wang Qing , Chen Bingrui , He Jianhua , Jiang Bo , Feng Guangliang , Jing Shenghui
Published: December 2022

The high geostress and complex geological structure of underground powerhouse at Yebatan Hydropower Station frequently result in surrounding rock failure which delay construction schedule. Based on the microseismic monitoring technique, the microseismic activity characteristics of surrounding rock failure is analyzed under excavation disturbance in the intersection area of the shaft and the 2# drainage gallery. The results show that the microseismic events are concentrated in the failure area of surrounding rock, the cumulative energy is stably increasing and then rapidly increasing, the apparent stress contour illustrates the distribution of stress concentration. The evolution law of the energy index is continuously increasing and maintaining a high level, then suddenly decreasing, last increasing again and the cumulative apparent volume is continuously increasing and suddenly increasing. In addition, it discusses the failure evolution and mechanism of surrounding rock. Finally, the results can provide important reference and technical support for construction.
Design and Implementation of Groundwater Monitoring Management System Functions Based on WebGIS
Authors: Wu Guangwei , Dong Yulong , Gu Sha , Wang Qingbing , Yang Peijie
Published: December 2022

WebGIS technology has been constantly improved, with its functions increasingly powerful and rich, as Web technology develops rapidly. With such features as platform independence and service reliability, WebGIS is accessible in a wider range, and its functions and applications are continually expanded, where more diverse, complex and flexible applications can be made by interactions with Web information services. Thus, the requirements of the groundwater information management system can be met by the application of WebGIS technology in groundwater information management. Using Web technology and ArcGIS API for JavaScript script language to call the map service on ArcGIS Server server, it realized the display of map on the system platform, realized the basic GIS function of the system, and combined with database technology to complete the real-time query function of monitoring data. Two advanced spatial analysis functions of groundwater vulnerability assessment and groundwater level isoline analysis were realized by using the geographic processing service of ArcGIS Server. It provides users with visual and intuitive groundwater spatial data analysis, and also provides an effective method for the wide application of spatial analysis. As well as realized the location of groundwater monitoring station and the display of the latest groundwater data. Based on Internet technical standards and a distributed system structure, the system can display, store and analyze spatial information and attribute data, and takes advantage of the spatial information for analysis, simulation and evaluation to solve such complex problems as the assessment, warning and management of groundwater overexploitation areas, exploring a new way for the dynamic supervision, warning and management of local groundwater.
Current Status and Prospect of Seismic Research on Transformer Electrical Equipment
Authors: Zhu Zhubing , Cheng Yongfeng , Lu Zhicheng , Liu Zhenlin , Wang Haibo , Xue Yaodong , Lin Sen
Published: December 2022

Earthquakes occur frequently in China. Earthquake damage data show that transformer equipment, as the core of substations (converter stations), has a high vulnerability under the seismic effect. Based on the structural features of transformer equipment, this paper discusses the current status of earthquake damage investigation and research in China and other countries, summarizes the earthquake damage modes and reasons for transformer equipment, introduces the progress of seismic research for transformer equipment in China and other countries, analyzes the role of existing technology in promoting the development of seismic technology for transformer equipment, and provides an outlook for the further research.
Analysis of Several Optimization Strategies of BP Neural Network in GNSS Height Anomaly Fitting
Authors: Zhang Guanjun , Chen Yanming , Su Chunpeng , Liang Yong , Hu Zeyin
Published: December 2022

Several optimization algorithms based on the Back Propagation (BP) neural network are often used to improve the fitting accuracy of GNSS height anomaly. However, the performance and applicability of these algorithms have not been systematically studied. This study takes two kinds of GNSS/leveling points with different spatial distributions as examples, evaluates the performance and applicability of commonly used genetic algorithm (GA), simulated annealing algorithm (SA), particle swarm optimization (PSO), and the latest sparrow search algorithm (SSA) methods in improving the fitting accuracy of BP neural network. Additionally, this study also attempts to add the input data related to terrain for the first time to analyze whether it can improve the fitting accuracy under uneven point distribution. Results show that these optimization algorithms can significantly improve the accuracy and stability of the BP neural network fitting results, and PSO and SSA methods indicate the best improvement. Additionally, when the distribution of fitting points is uneven, adding appropriate input data can also effectively improve the reliability of the BP neural network.
Selection of Dominant Moss Species for Ecological Restoration of Abandoned Mines – A Case Study of Tieshan Quarry in Qixing District, Guilin, China
Authors: Li Shengdong , Liu Zhikui , Wang Lei , Xiong Ying , Xie Yongxiong , Huang Bingyan
Published: December 2022

The local dominant mosses were used to study the revegetation of the high and steep slope of the open-pit mine. Based on the improved Line Intercept Method (LIM), the rapid screening of dominant pioneer mosses for mine reforestation was carried out and the impact of habitat on the development of wild mosses was preliminarily explored. The results showed that 6 species of mosses belonging to 5 families were found in the representative plots, and Barbula unguiculata was the dominant species among the pioneer mosses. The important values of mosses were as follows: Barbula unguiculata > Brachymenium exile > Haplocladium microphyllum > Amblystegium serpens,> Sematophyllum subpinnatum > Thuidium glaucinoides. Altitude, temperature and humidity are important factors affecting the development of wild Barbula unguiculata. The improved LIM was applied in field experiment to obtain and quickly screen dominant moss, this method was also of great significance to other research areas. It is a development direction for mine regreening engineering to select superior local moss species suitable for the regional environment as the re greening seed source.
Technology and Application of Transient Electromagnetic Detection of Overlapping Loop
Authors: Li Yabin , Li Yunbo , Zhang Guojun , Yuan Yongnian , Shi Liang , Li Yang
Published: December 2022

In the case of a certain geoelectric section, we analyze the diffusion depth of TEM field, and simulate the time when the peak of electric field excited by different coils emitting step pulses reaches a certain depth underground, all of which indicate that the arrival depth of TEM diffusion field is only related to the delay time. This lays a theoretical foundation for the TEM method of small center loop to detect greater depth. If the equivalent sending current of transmitter and the equivalent area of receiving coil or probe are increased, the TEM method of small loop device can reach the detection depth equivalent to that of large loop device in a certain range. This paper tries to demonstrate the detection ability of small center loop method from the combination of theory and practice.
Optimization Through Box-Behnken Design for Cr(VI) Degradation from Real Tannery Wastewater Using Graphite Electrode by Electrocoagulation
Authors: Bajpai Mukul , Sharma Samriddhi , Katoch Surjit Singh
Published: December 2022

The mitigation of tannery effluents is a rising issue owing to the complex mixture of contaminants and hazardous chemicals, mostly chromium. The disposal of tannery effluent into the various water sources such as ponds, lakes, rivers, etc., affects the ecosystem and aquatic lives. The current work scrutinizes the performance of EC unit for Cr(VI) degradation from real tannery effluent. The chromium removal efficiency was evaluated using an iron and graphite electrode in parallel arrangement (MP-P). The iron anode was employed to generate metal coagulant species whereas, graphite served as the cathode. Furthermore, based upon factors mainly pH, current density (CD), electrolysis duration and initial pollutant concentration, the process was statistically optimized using BBD-based response surface methodology (RSM). Optimization of all the four independent variables was determined to be pH = 5.27, CD = 6.26 mA/cm2, electrolysis time = 26.7 minutes and initial concentration = 133.62 mg/L respectively based on which maximum chromium removal efficiency of 89.12% was obtained. Residual, response, probability, 3D surfaces, and contour plots were determined using analysis of variance (ANOVA).
An efficient combination of topology optimization and parameter optimization for electromagnetic devices
Authors: Sun Zhen , Sato Takahiro , Watanabe Kota
Published: December 2022

A novel hybrid optimization (HO) method efficiently combines parameter optimization (PO) and topology optimization (TO) is proposed. The novelty concerns introducing the mesh deformation technique for model regeneration to make a connection between the TO and PO, in this way, the geometric features can be inherited in iterative optimization to fasten the convergence. The proposed HO is applied to the optimal design of a baseline V-type permanent magnet synchronous machine (PMSM), in which the topology of air barriers and the layout parameters of permanent magnets (PMs) are simultaneously optimized, for torque property enhancement. Comparative numerical results show that the proposed HO is more efficient in optimal solution searching compared with traditional methods, as good topological features can be inherited in the iterative optimization. The numerical results also indicate that the proposed HO has good compatibility with different solvers, it can always provide good convergence to provide PMSM designs with excellent torque property when an evolutionary algorithm such as a genetic algorithm and evolution strategy is used as the solver.
Numerical calculation method of magnetization and eddy current by applying the subdomain method to integral equations
Authors: Tanaka Yoshikazu , Simojyo Kazuki
Published: December 2022

The magnetic targeting method is expected for the regeneration of cartilage of knee. Magnetically labeled mesenchymal stem cells (m-MSCs) and an external magnetic field are used in the magnetic targeting method. A numerical calculation method for simulating the behavior of the m-MSC is needed. In this paper a numerical calculation method of magnetization and eddy current by applying the subdomain method to integral equations is presented. The proposed method has been used to solve two problems for which the exact solutions are known, namely the magnetization of a sphere placed in a uniform magnetic field and the eddy current induced in a flat plate, to verify its validity. Through the two problems, the validity of the proposed method has been confirmed.
Receiver operating characteristic analysis for evaluating a proper experimental condition of eddy current tests under a low signal-to-noise ratio
Authors: Yu Fanwei , Tomizawa Takuma , Song Haicheng , Yusa Noritaka
Published: December 2022

This study proposed a method to evaluate proper experimental conditions of eddy current tests under a low signal-to-noise ratio. This method was applied to quantify the detection reliability of the eddy current test to detect corrosion pits on the surface of austenitic stainless-steel weld cladding from the perspectives of probability of detection and probability of false alarm. The fluctuations of flaw signal and noise were described using truncated bivariate normal distributions of a two-dimensional vector composed of the real and imaginary components of a signal. The probabilities of detection and false alarms were formalized as cumulative distributions of the estimated distributions of the maximum flaw signal and the noise exceeding a decision threshold. The receiver operating characteristic curves were created by coupling the probabilities of detection and false alarms at various thresholds. The area under the curve was used to quantify the detection reliability, simultaneously considering the probabilities of detection and false alarms. The results obtained in this study support the applicability of this method in quantitatively evaluating the detection reliability of a non-destructive inspection under a low signal-to-noise ratio.
Magnetic hysteresis model using chained plays
Authors: Bergqvist Anders
Published: December 2022

A magnetic vector hysteresis model is presented using play hysterons as building blocks. The main difference compared to earlier play based magnetic hysteresis models is that instead of forming a superposition of plays with different coercivities, this work uses a set of identical plays which are connected in a chain so that the output of one play acts as input to the next. Like models using a superposition, this yields far more complex minor loop behavior than a single play is capable of. Comparisons are made with measurements on a nonoriented electric steel for BH curves and alternating and rotational losses, showing satisfactory agreement. The approach is found to have both advantages and disadvantages compared to models using superpositions of plays. The problem of determining model parameters becomes simpler and the model can be reversed so either magnetic field or magnetization may be used as known variable. On the other hand, there is no apparent connection to underlying physical processes.
Efficiency of cavity dissolution in rock salt by water submerged jets
Authors: Orel Vadym , Matsievska Oksana , Balabukh Irenei
Published: December 2022

To create cavities when dissolving rock salt, it is most expedient to supply the solvent through the nozzles of a perforated pipe in the form of submerged jets. This article examines the physical dissolution of a cavity with water from a stationary nozzle with a diameter of 0.004 m at two constant velocities at the nozzle cross-section. The efficiency of cavity dissolution, which has an almost cylindrical shape with a semi-cylindrical bottom, was analyzed at a nozzle cross-section speed of 8.85 m/s. The obtained results are explained on the basis of the fact that the formed cavity is a short dead-end channel where longitudinal compression acts. The flow in such a channel is caused by the back pressure exerted by its end. And the back pressure, in turn, hinders the development of the jet that flows out of the stationary nozzle, limiting its range. The cessation of significant expansion of the jet is indirectly confirmed by the use of an empirical formula for the distribution of the maximum water velocity along the axis of the jet. Its value at the end of the section of the most intense dissolution of the cavity becomes 8.85 times smaller compared to the speed at the nozzle cross-section. The boundaries of the area of the most intense dissolution of the cavity are determined by the relationship between the depth of the cavity, the diameter of the nozzle, the velocity at its cross-section, and the time of dissolution, which can be used to model the dissolution of cavities at different values of the velocity at the cross-section of the nozzle at its constant diameter. It was found that the relationship between the radius and depth of the cavity is linear. The angle between the boundary of the cavity size change and the axis of the nozzle is 20°23'. These results show that the dissolution of cavities is effective in a limited range of their dissolution time, the limits of which depend on the velocity of the solvent at the nozzle section. To confirm the obtained results, it is necessary to investigate the geometric characteristics of the cavities for other values of the nozzle diameters.
Uso de microinfusor de insulina con sistema integrado en pacientes pediátricos con diabetes tipo 1: resultados metabólicos iniciales
Authors: Wong Lam Carolina , Hurtado Navarro Josefa , Fuentes Díaz Rocío , Toro Toro Elizabeth , Reyes Espejo Bárbara
Published: December 2022

El microinfusor de insulina con sistema integrado (SAPT) para pacientes con Diabetes Mellitus tipo 1 (DM1) pertenece al sistema nacional de protección financiera para tratamientos de alto costo. Objetivo: describir los resultados metabólicos iniciales y del primer año de evolución, y características epidemiológicas y nutricionales de pacientes pediátricos DM1 tratados con SAPT. Pacientes y Método: Estudio restrospectivo, descriptivo y analítico de registros clínicos 2017-2019, de 12 pacientes con DM1 usuarios de SAPT, atendidos en hospital de referencia. Variables estudiadas: edad de ingreso al programa, tiempo de evolución de enfermedad, tipo de tratamiento insulínico y tipo de monitoreo de glucosa (capilar o Monitoreo Continuo de Glucosa [MCG]) al ingreso del programa, causal de postulación al programa, estado nutricional, procedencia rural o urbana, nivel educacional del tutor principal, HbA1c de la postulación y del último mes inicial de cada trimestre posterior a la instalación de SAPT, en un período de 12 meses. El análisis de HbA1c fue muestra venosa por Cromatografía líquida de Alto Rendimiento y el seguimiento fue muestra capilar mediante técnica de Inhibición de aglutinación de partículas de látex. Resultados: Las medianas de variables a 12 meses de tratamiento fueron Dosis Diaria Total (DDT) 0,74, %Basal (%B) 49%, Tiempo en rango (TER) 39%, Tiempo Bajo rango (TBR) 1% y HbA1c 7,7%. El tiempo de uso del sensor se cumplió en todos y sólo la mitad de casos logró una ejecución correcta del tratamiento de hiperglicemia e hipoglicemia. La hipoglicemia severa inadvertida fue la principal causa de postulación. Conclusión: DDT y %B aumentaron, acercándose a lo fisiológico, aunque sin significación estadística, pudiendo atribuirse a la administración de insulina adecuada con menor riesgo de hipoglicemia gracias a la suspensión predictiva y el MCG. TER presentó un aumento favorable, aunque no significativo, ni logrando alcanzar el rango objetivo, atribuible al corto tiempo de observación, dificultades de comprensión y ejecución de nuestros pacientes y también al aprendizaje del equipo clínico tratante. SAPT fue efectivo en manejo de hipoglicemia y eficaz en mejoría de HbA1c.
Monitoreo del tratamiento anticoagulante con Heparina no Fraccionada en pediatría
Authors: Aguirre Noemi , Rivera Carolina , Muñoz Gonzalo , Valle Patricio , Panes Olga , Zuñiga Pamela
Published: December 2022

La heparina no fraccionada (HNF) es el anticoagulante de mayor uso en pacientes hospitalizados. El rango terapéutico (RT) se definió en adultos en relación a la prolongación del Tiempo de Tromboplastina Parcial activado (TTPa). Sin embargo, la recomendación es mantener un rango terapéutico con anti factor X activado (antiFXa). Como esta técnica es más compleja de realizar y menos disponible, se recomienda hacer curvas locales de correlación de TTPa con AntiFXa. Objetivo: determinar la correlación entre los valores de TTPa y AntiFXa, en pacientes en tratamiento con HNF. Pacientes y Método: Se reclutaron 52 pacientes entre 2 días y 14 años de edad hospitalizados en Unidad de Paciente Crítico Pediátrico. Recibieron tratamiento con HNF en infusión continua por al menos 24 horas. Se tomaron muestras de TTPa y AntiFXa de acuerdo al momento de anticoagulación. Para evaluar la concordancia de los niveles de TTPa con los de AntiFXa, se utilizó el coeficiente estadístico Kappa de Landis y Koch. Resultados: se obtuvieron 105 muestras de 52 pacientes. La concordancia general fue 0,452 (correlación moderada). En los pacientes < 1 mes (n = 40), se evidenció una correlación considerable (r = 0,617), edades 1 mes a < 6 meses (n = 18), y 6 meses - < 12 meses con TTPa < 120 segundos (n = 11), mostraron igualmente una correlación considerable (r = 0,636 y 0,615 respectivamente), en tanto que en > 12 meses (n = 37) con TTPa < 120 segundos, se evidenció una correlación moderada (r = 0,454). Conclusión: En nuestra población existe una correlación moderada entre los valores de TTPa y AntiFXa.
Aplikasi Pencarian Donor Darah Menggunakan Metode Personal Extreme Programming Berbasis Android
Authors: Riki Muhammad Fajri , Effendy Irman
Published: December 2022

Pada tahun 2019 lalu, dunia dikejutkan dengan adanya wabah COVID-19. COVID-19 menyebabkan berkurangnya stok darah dan pendonor karena khawatir terpapa COVID-19 saat melakukan donor. Pencarian donor darah oleh pasien cenderung mengalami kesulitan karena sulit ditemukannya pendonor. Masih banyak pasien yang kesulitan mendapatkan donor darah karena stok darah yang dibutuhkan tidak selalu ada. Banyak pasien yang menggunakan media sosial untuk mencari donor darah tetapi kurang efektif, informasi pendonor belum jelas, dan tidak selalu tepat sasaran. Berdasarkan masalah tersebut, maka solusinya adalah membuat sebuah aplikasi berbasis android sebagai platform yang dapat membantu pencarian donor darah dan menghubungkan pasien dan pendonor. Aplikasi ini dibangun dengan framework Flutter, Firebase dan Google Cloud. Metode yang digunakan dalam pembangunan aplikasi ini adalah Personal Extreme Programming (PXP) dengan pengujian Black Box didapatkan hasil yaitu aplikasi yang dibuat dapat bekerja dengan baik sebagaimana fungsinya. Hasil dari penelitian ini adalah aplikasi pencari donor darah berbasis android yang dapat mempermudah mencari pendonor.
Perancangan Sistem Informasi Point of Sale Pada UD.Harapan Menggunakan Metode FIFO (First In First Out)
Authors: Syifa Yudha Adyatma , Purwanto Agung
Published: December 2022

Sistem Informasi dibuat dengan tujuan untuk mempermudah penggunanya, proses bisnis yang awalnya dilakukan secara manual dengan adanya sistem informasi maka segala proses bisnis yang dilakukan dapat terkomputerisasi dengan baik. UD.Harapan merupakan usaha yang bergerak dibidang perdagangan retail yang memiliki beberapa masalah dalam proses bisnis yang mereka jalankan, beberapa masalah yang dihadapi adalah pencatatan data barang yang memakan waktu lama, transaksi pembelian dan penjualan yang manual sehingga lama untuk menyelesaikan setiap transaksi yang ada, dan yang terpenting adalah pencatatan data pelanggan mulai dari saldo disimpan dan dipakai masih dicatat manual pada buku tulis. Untuk menyokong proses bisnis yang ada pada UD.Harapan yaitu penjualan, pembelian, pencatatan stok barang, pencatatan data pelanggan, pencatatan kas masuk dan keluar, serta laporan diperlukan suatu sistem untuk menunjang semua proses bisnis yang ada. Maka tujuan dari penelitian ini adalah dapat membuat sistem informasi untuk menyokong semua proses bisnis yang ada pada UD.Harapan. Dalam pembuatan sistem informasi digunakan metode FIFO (First In First Out) untuk membantu pencatatan data barang. Pembuatan sistem informasi menggunakan metode FIFO dan memanfaatkan UML sebagai model dari desain yang akan dibuat telah mampu diimplementasikan pada UD.Harapan dan berjalan sebagaimana yang mereka perlukan, sistem ini telah diuji menggunakan blackbox testing sehingga semua fitur yang ada berhasil dijalankan pengguna sebagaimana hasil yang diharapkan.
Penerapan Metode Harmonic Mean Filter Dalam Mereduksi Gaussian Noise Pada Citra Digital
Authors: Agusti Dhea , Nababan Adli Abdillah
Published: December 2022

Abstrak - Pada penelitian ini, noise dibangkitkan dengan menggunakan tools matlab dan dilakukan analisa. oleh karena itu, untuk mereduksi derau (noise) perlu dilakukan suatu proses perbaikan kualitas citra terhadap citra yang mengalami derau atau noise tersebut sehingga citra dapat dengan mudah diinterpretasikan baik oleh manusia maupun mesin. Penelitian ini menggunakan metode harmonic mean filter. Harmonic mean filter merupakan salah satu metode untuk menghitung rata-rata dari citra yang rusak g(s,t) pada sebuah blok area citra yang didefinisikan oleh 𝑆𝑥𝑦. Nilai dari citra f(x,y) yang diperbaiki pada tiap titik (x,y) hanya dihitung dengan menggunakan piksel dalam daerah yang didefinisikan oleh 𝑆𝑥𝑦. Tipe noise yang digunakan dalam penelitian ini adalah gaussian noise. Gaussian noise memiliki intensitas yang sesuai dengan distribusi normal yang memiliki rerata (mean) dan varian tertentu. Penelitian ini menguji seberapa efektif metode harmonic mean filter dalam mereduksi gaussian noise menggunakan citra rontgen. penelitian ini menggunakan matriks 5 x 5 dalam sampel perhitungannya. Hasilnya yaitu berupa angka dari hasil metode perhitungan harmonic mean filter dalam bentuk tabel.Kata kunci: Harmonic Mean Filter, Citra Digital, Gaussian Noise, Reduksi, Rontgen. Abstract - In this research, noise is generated using MATLAB tools and analyzed. Therefore, to reduce noise, it is necessary to carry out an image quality improvement process for images that experience noise or noise so that the image can be easily interpreted by both humans and machines. This study uses the Harmonic Mean Filter method. Harmonic Mean Filter is one method to calculate the average of the damaged image g(s,t) in a block image area defined by . The value of the fixed f(x,y) image at each point (x,y) is calculated using only pixels in the area defined by . The type of noise used in this study is Gaussian Noise. Gaussian Noise has an intensity that corresponds to a normal distribution which has a certain mean (mean) and variance. This study examines how effective the Harmonic Mean Filter method is in reducing Gaussian Noise using X-ray images. This study uses a 5 x 5 matrix in the calculation sample. The result is a number from the results of the Harmonic mean filter calculation method in tabular form.Keywords: Harmonic Mean Filter, Digital Image, Gaussian Noise, Reduction, X-Ray.
Constraints in Utilizing Local Legend in Strengthening Literature Movement of Elementry School Students in Aceh Besar
Authors: Asriani Asriani , Fauziah Cut , Nurul Amla Rini , Azmi Nurul , Junaidi Junaidi
Published: December 2022

The use of local legends is very good in strengthening the student literacy movement. This study aims to describe the obstacles in the use of local legends in strengthening the literary literacy movement of elementary school students in Aceh Besar District. This type of research includes a qualitative description. The data was obtained through direct observation of the availability of information about local legends in Aceh Besar District, such as Batu Bertutup, Eumpee Buno, Mon Twi Patong, Amat Rhang Manyang and Asal-Usul Gunung Tiga. Based on the results of the study, several obstacles were found in the use of local legends, namely (1) loose customary ties in society and the indifference of the younger generation to folk legends; (2) local legend books have not been recorded yet; (3) lack of concern for and pride in local legends; (4) generally storytellers are old and have died.

Keywords: Constraints, Utilization, Local Legends, Literary Literacy Movement
Iatrogenic splenic infarction after embolization of an anomalous artery supplying a pulmonary sequestration: A report of a rare case
Authors: Kartha Anand , Sulaiman Theeb O
Published: December 2022

Iatrogenic splenic infarction is a rare clinical entity that can result from various abdominal surgical and invasive procedures. We report a case of iatrogenic splenic infarction in a 29-year-old female who presented with hemoptysis and was found to have pulmonary sequestration. During the embolization of the anomalous artery supplying the pulmonary sequestration, she developed severe pain and was found to have a splenic infarction, caused by a part of the coil that dislodged during the procedure. The patient showed good response to conservative management and was discharged in good condition. Keywords: Embolization, Pulmonary sequestration, Splenic infarction.
A case of cyclophosphamide-induced posterior reversible encephalopathy syndrome: Is it dose-related side effect?
Authors: Sulaiman Theeb Osama , Yasin Ahmed K A , Ismail Abdellatif
Published: December 2022

We reported a case of cyclophosphamide (CYP)-induced posterior reversible encephalopathy syndrome (PRES) in a 26-year-old previously healthy male patient who was presented to the emergency department with a history of fever, shortness of breath, and hemoptysis. After extensive investigations, including bronchoscopy and autoimmune screening, he was diagnosed with renal-pulmonary syndrome. The diagnosis of CYP-related PRES was based on the development of neurological clinical picture supported by magnetic resonance imaging findings. The dose of CYP was decreased to 75 mg/day, and the patient’s symptoms improved after 3 days. Keywords: Antineutrophil cytoplasmic antibody, Cyclophosphamide, Posterior reversible encephalopathy syndrome, Renal-pulmonary disease.
PENGARUH BEBAN KERJA DAN FASILITAS KERJA TERHADAP EFEKTIVITAS KERJA KARYAWAN BAGIAN PRODUKSI PADA PT WIEDA SEJAHTERA
Authors: Rayhan Muhammad , * Azwar , Mustofa Anwar
Published: December 2022

Penelitian ini bertujuan untuk mengetahui dan menganalisis pengaruh secara parsial dan simultan antara beban kerja dan fasilitas kerja terhadap efektivitas kerja karyawan bagian produksi pada PT Wieda Sejahtera. Penelitian ini termasuk penelitian asosiatif kausal dengan pendekatan kuantitatif serta jumlah populasi sebanyak 30 karyawan dengan perhitungan sampel menggunakan teknik sampling jenuh. Jumlah sampel yang digunakan dalam penelitian ini sebanyak 30 responden. Pengujian instrumen menggunakan uji validitas dan reliabilitas. Sedangkan metode analisis data menggunakan analisis regresi linier berganda, uji koefisien determinasi R2, uji T, dan uji F. Pengolahan data dalam penelitian ini dilakukan dengan menggunakan software SPSS 22 for windows. Model persamaan regresi Y= 50,997 - 0,464 (X1) + 0,542 (X2) + e sudah layak untuk digunakan. Berdasarkan hasil korelasi secara parsial variabel beban kerja (X1) memberikan pengaruh terhadap efektivitas kerja (Y) sebesar 10,96 persen, sedangkan variabel failitas kerja (X2) memberikan pengaruh terhadap efektivitas kerja (Y) sebesar 12,89 persen. Berdasarkan hasil analisis koefisien determinasi (R2) sebesar 29,3 persen efektivitas kerja dipengaruhi oleh beban kerja dan fasilitas kerja sedangkan sisanya 70,7 persen dipengaruhi oleh variabel lainnya yang tidak dibahas dalam penelitian ini seperti motivasi, stres kerja, gaya kepemimpinan dan lain sebagainya
Mechanical projects: dimensioning of shafts with correction for keyway and bearing support
Authors: Meneghin Pedro Henrique , Lopes Cintia Abdelnur
Published: December 2022

This article goes through several steps in order to deliver a reliable result, according to the ASME method, of a shaft dimensioning, aiming to automate the calculation memorial process for shaft projects. The design steps are: stress diagrams, fatigue and geometry analysis (if necessary); correction due to discontinuity (if any); shaft diameter correction due to keyway (if any); and correction due to manufacturer’s selected bearing support (adopting SKF models). In this way, the article aims, in order to comply with the literature and standards, to dimension transmission shafts. The results of the exercises solved in the book Projeto de Máquinas: Uma abordagem integrada will be used as a reference. The developed program aims to meet both professional and academic demands by optimizing the calculations to obtain the diameter of a shaft. In addition, the project is justified by the fact that it allows several changes for a better understanding, either for a designer or for a student. The software used to automate the processes and obtain the results will be Mathcad Prime 5.0 from PTC Enterprise. At the end of the article, along with the results and conclusion, there are examples of design problems solved by the program, along with their explanations and comparisons with the results obtained in the Norton’s book.
Falha da adesão ao tratamento da hipertensão arterial sistêmica na atenção primária
Authors: Bernardes Isabella Pascutti , Grazziotin Giovanna de Nadai , Augusto Giovanna Guerra , Costa Maria Fernanda Nibi , Panico Caroline Thomaz
Published: December 2022

Contexto da Pesquisa: A Hipertensão Arterial Sistêmica (HAS) é caracterizada por níveis elevados da pressão arterial sistêmica (acima de 120/80 mmHg) e é considerada um revés da atenção primária, pois associa-se às alterações metabólicas e funcionais em órgãos-alvo. Grande parcela da população hipertensa não realiza o tratamento medicamentoso e não medicamentoso de forma correta. Pergunta problema: Quais os motivos pelo qual os portadores de hipertensão não realizarem o tratamento de maneira correta, tanto no âmbito farmacológico quanto não farmacológico? Objetivo Geral: Identificar, através de um questionário, as possíveis causas de falha na adesão do tratamento medicamentoso e não medicamentoso em indivíduos classificados como idosos (a partir de 60 anos), acometidos pela HAS, adscritas no território da Unidade de Saúde da Família Aeroporto II (USF) em Mogi das Cruzes. Metodologia: Os participantes foram selecionados por meio da análise de fichas da USF e os que se enquadraram responderam um questionário elaborado pelas pesquisadoras. Este foi composto por questões acerca de dados e hábitos pessoais, questões relacionadas com a HAS e a USF e hábitos alimentares. As respostas foram analisadas por meio de gráficos comparando os pacientes. Principais resultados: Foi observada maior prevalência da HAS em mulheres, idosos entre 61 e 70 anos, brancos e que não terminaram a escola. O sedentarismo e a má alimentação foram prevalentes na maioria dos idosos, enquanto o tabagismo e o alcoolismo foram minoria entre os participantes. A maioria dos idosos que interromperam o tratamento da HAS, o fizeram por esquecerem-se da medicação. A diabetes foi a doença mais associada com a HAS. Conclusão: Aqueles idosos que possuíam um estilo de vida mais saudável, apresentaram maior adesão e efetividade no tratamento da HAS. A falha no tratamento foi associada aos hábitos e a falta de compreensão sobre a doença.
Ten sentido unha lexicografía académica bilingüe? [De lexicografía e Academimas]
Authors:   Real Academia Galega, Sánchez Palomino María Dolores
Published: December 2022

Discurso lido o día 17 de decembro de 2022 no acto da súa recepción, pola ilustrísima señora dona María Dolores Sánchez Palomino e resposta do excelentísimo señor don Manuel González González. O solemne acto académico en que foron lidos os dous discursos recolleitos no presente volume celebrouse no salón de actos da Real Academia Galega. A académica fai no seu discurso un percorrido pola elaboración de dicionarios das distintas linguas románicas por partes das correspondentes Academias e reflexiona sobre a pertinencia de que estas elaboren dicionarios bilingës.