Card Processing Research Articles

Online Handwriting Recognition Method with a Non-Inertial Reference Frame Based on the Measurement of Linear Accelerations and Differential Geometry: An Alternative to Quaternions.

This work describes a mathematical model for handwriting devices without a specific reference surface (SRS). The research was carried out on two hypotheses: the first considers possible circular segments that could be made during execution for the reconstruction of the trace, and the second is the combination of lines and circles. The proposed system has no flat reference surface, since the sensor is inside the pencil that describes the trace, not on the surface as in tablets or cell phones. An inertial sensor was used for the measurements, in this case, a commercial Micro-Electro Mechanical sensor of linear acceleration. The tracking device is an IMU sensor and a processing card that allows inertial measurements of the pen during on-the-fly tracing. It is essential to highlight that the system has a non-inertial reference frame. Comparing the two proposed models shows that it is possible to construct shapes from curved lines and that the patterns obtained are similar to what is recognized; this method provides an alternative to quaternion calculus for poorly specified orientation problems.

Leaching of base metals in PCBs and copper cementation by iron powder

When dealing with electronic waste, printed circuit boards (PCBs) are some of the most important materials in terms of recovery possibilities, because of their high content of precious metals and base metals, notably copper (> 20% w/w), in addition to organic resins and ceramic materials. Efficient hydrometallurgical metals recovery from electronic waste is an important on-going research topic, and the present study consisted in the development of a process for the concentration of precious metals by leaching and recovery of major base metals mainly copper.A fraction of crushed PCBs concentrated in metals with more than 50 % copper was used for the leaching tests for two types of components: processor cards and mobile phone cards. For the leaching process, two steps were carried out. A first step consisted in leaching the concentrate three times with sulfuric acid and hydrogen peroxide, a second step consisted in lead removal by nitric acid leaching.The obtained results exhibit that, for processor cards, the first stage of leaching allowed the extraction of about 98 % of copper. Other base metals, zinc (99.8 %) and nickel (96 %) were also significantly leached. Precious metals were less leached except Ag with 88 % of release. The second stage of leaching with nitric acid allowed significant removal of lead (66 %). For mobile phone cards, the first stage of leaching led to an almost complete extraction of Cu (>98 %) and some other base metals (Fe, Ni, Sn, and Zn > 90 %). Al, Co and Mn were also extracted at 76 %, 78 % and 81 % respectively. Precious metals remained in the residue, except Pd which was leached at 16 %. The second stage of leaching with dilute nitric acid solution was not necessary for mobile phone cards, as it was responsible of an important Ag release from residue (80 %).

Hybrid PVP/Battery/Fuel Cell Wireless Charging Stations Using High-Frequency Optimized Inverter Technology for Electric Vehicles

The design and integration of intelligent energy management systems in hybrid electric vehicle (EV) charging stations, leveraging industry 4.0 and renewable energy sources, is crucial for advancing sustainability, efficiency, and technological development. The innovative hybrid EV charging station described in this study uses a combination of fuel cells, batteries, and solar panels that run at 14 amps a piece at 240 volts. The system consists of five essential components that work together to transfer power wirelessly: an EV battery bank, a boost converter, an HF inverter, transfer coils, and a power supply. Two crucial phases make up the optimization process. In phase 1, the boost converter’s maximum power point is tracked and optimized to generate the most power possible by varying the duty cycle between 10% and 90%. In phase 2, the HF uses a class ϕ2 inverter at 30 MHz to synchronize with the resonant frequency of wireless power transfer coils. Zero-voltage switching is used by a digital signal processor card to carry out control for effective operations. By utilizing hybrid sources to optimize power transmission, this design improves the sustainability of EV charging options.

WEBSITE KELURAHAN SOLOK SIPIN

The smallest government agency at village level is the sub-district office, which is an agency that handles population data processing, especially in the process of making family cards, birth certificates, death certificates, immigrant certificates and moving certificates. In terms of data processing, Kelurahan Solok Sipin still experiences several obstacles, resulting in a long time in making reports. To overcome this, a web-based application is needed to speed up or simplify work and data and provide information more quickly and accurately. This application aims to make it easier for sub-district officials to improve population data collection and reports. The input requirements are admin data, population data, family card data, transfer mutation data, migrant mutation data, and birth event data. For process requirements, namely population data processing, family card data processing, transfer and immigrant mutation data processing, and processing data on birth and death events. The output requirements are population data reports, family card data reports, migration transfer data reports, migrant mutation data reports, and birth event data reports. So the expected results in this research are wide accessibility, no installation required, and updates can be automatic.

Design of Web-based Report Card Processing Information System at MTS Negeri 4 Kebumen

Based on observations made, the processing of report card scores in MTs N 4 Kebumen is currently still manual, so a lot of time and energy is needed to carry out the task. In addition, the distribution of report cards is also still conventional because parents must come to school to take them, for this reason, a report card application is needed that can improve services to students quickly in terms of distributing report card scores while making it easier for teachers to fill in report cards. The purpose of this study is to design a web-based value processing application. In designing this application, the author uses the stages of SDLC development with the Waterfall process model. The design of this web-based report card processing information system can improve the quality of report card processing in MTs N 4 Kebumen. The programming language that the author uses is PHP and uses a MySQL database. To test the feasibility of the system, the authors used blak bock testing. The final result of this research is the creation of a web-based MTs N 4 Kebumen report card application.

Особенности работы кранового группового электропривода с частотным управлением на морском судне

One of the most important tasks to increase efficiency and reliability of modern sea vessels is the study of the operation of electric drives with frequency control. There is a sufficient number of scientific studies in which analysis and research is carried out on the topic of frequency control of electric drives. Problems occur when operating special-purpose sea vessels equipped with a powerful crane with a lifting capacity of 250 tons. The ship crew when working in the open sea, cannot fully operate the cargo crane at full speed, since it is suddenly switched off by the protection and an emergency occurs. In this regard, it is relevant to improve the use of powerful group electric drives on sea vessels. The authors have used a passive experiment method to study the operation of six electric motors with a power of 400 kW, which drive the winch of the crane main hook. The operation of the frequency converter and multichannel oscilloscope has been constantly monitored. Using the standard functions of the frequency converter control system allows you to monitor and obtain oscillograms of six parameters simultaneously: motor torques, active motor powers and engine rpm speed, total winch current. The necessary adjustments and settings of the frequency converter control system are carried out by changing the parameterization of the encoder signal processing card. The design of a pedestal crane with a lifting capacity of 250 tons on the pipe-laying vessel Seven Vega is considered. Experimental oscillograms have been obtained characterizing the operation of the crane main hook winch. The moment of trip (knockout due to overload) has been recorded at the maximum speed of one of the six drive electric motors. It has been established that such protection makes it impossible to continue lifting or lowering the load. The conducted studies have shown that for encoders used in a group crane electric drive, it is necessary to use the law of calculation of the rotation speed using the full duration of the pulse period of one channel. After changing the parameterization of the encoder signal processing map, which provides calculation of the rotation speed of each of the six electric motors, long-term tests have been carried out. The tests results have shown the proper operation of the crane main hook winch at maximum speeds. The results of the conducted research make it possible to ensure high-quality operation of a group crane electric drive with frequency control. As a result of the study, it is established that when asymmetry of pulse duration is detected in the operation of optical encoders, it is necessary to change the speed calculation method of the frequency converter to use the full duration of the pulse period of one channel, and not the difference between the fronts or drops of the pulses of four channels. The experience of the conducted research and repair and adjustment work can be used in various electrical complexes that use group electric drives with Siemens frequency converters.

Streamlining success: The crucial role of lean product management in the payments industry

Lakshmi Sushma Daggubati is a renowned professional in the payments industry, with a career spanning over 8 years. With extensive professional experience in product management and working for one of the largest payment companies in the world, she has made significant original contributions to the field, particularly in financial services, card processing, fraud prevention, and digital payments. Her expertise has been well established by granted publications, and she has played a crucial role in supporting the success by implementing multiple products that help issuing banks, merchants, and card holders. She currently serves as the manager of product management at a leading payments technology organization.

Prediction method of carding process production quality based on digital twin technology

In recent years, digital twin technology has developed rapidly, which has great advantages in improving production quality and saving production costs. Therefore, it is of great significance to apply digital twin technology to the spinning field to realize the prediction of spinning production quality. This study takes the carding process in yarn manufacturing as an example. First, a prediction model framework for carding process production quality is proposed based on the digital twin modeling mechanism. Each key component’s modeling principles and methods are analyzed, and the modeling process and coupling between models are clarified. Next, the carding process production quality prediction model is established based on the proposed modeling framework and actual working conditions. Then, a set of comparative experiments on a generative adversarial network and a set of comparative experiments between different prediction models were designed. The results showed that the production quality prediction model of the carding process established according to the modeling method proposed in this paper meets the requirements of spinning production quality prediction, and the average error rate of the model was 5.7%. Finally, the modeling method and experimental results are discussed, and future research directions are considered. The paper has great significance for further research on quality prediction of yarn manufacturing, providing a reference for applying digital twin technology and promoting intelligent manufacturing in the spinning field.

Results from Ireland North and South’s 2022 report card on physical activity for children and adolescents

BackgroundThe Ireland North and South Report Card on Physical Activity (PA) for Children and Adolescents aims to monitor progress in PA participation across a range of internationally established indicators. MethodsData were collated for 11 indicators and graded following the harmonised Active Healthy Kids Global Alliance report card process. Six representative studies (sample size range n = 898 to n = 15,557) were primarily used in the grading, with many indicators supplemented with additional studies and reports. Data collected since the implementation of COVID-19 public health measures in March 2020 were excluded. ResultsGrades were awarded as follows: ‘Overall physical activity’, C-; ‘Organised Sport and Physical Activity’, C; ‘Active Play’, INC; ‘Sedentary Behaviours’, C-; ‘Physical Fitness’, INC; ‘Family and Peers’, D+; ‘School’, C-; ‘Physical Education’, D; ‘Community and Environment’, B+ and ‘Government’, B. Separate grades were awarded for disability as follows; ‘Overall physical activity’, F; ‘Organised Sport and Physical Activity’, D; ‘Sedentary Behaviours’, C-; ‘Family and Peers’, C; ‘School’, C- and ‘Government’, B. ‘Active Play’, ‘Physical Fitness’, ‘Physical Education’ and ‘Community and Environment’ were all graded INC for disability. Since the last report card in 2016, four grades remained the same, three increased (‘Overall physical activity’, ‘School’ and ‘Physical Education’) and two (‘Family and Peers,’ and ‘Government’) were awarded grades for the first time. ConclusionGrades specific to children and adolescents with disability were generally lower for each indicator. While small improvements have been shown across a few indicators, PA levels remain low across many indicators for children and adolescents.

Match official experiences with the Blue Card protocol in amateur rugby: implementing Rowan’s Law for concussion management

ABSTRACT The Blue Card protocol was introduced to domestic amateur rugby competitions to bring Rugby Canada into compliance with provincial concussion legislation. The Blue Card protocol formalises how match officials can remove an athlete with a suspected concussion from play and prevents athletes from returning to sport without medical clearance. This exploratory study examined the experiences of Canadian rugby match officials with the novel Blue Card process. Semi-structured interviews conducted with six Canadian rugby match officials were subjected to Interpretive Phenomenological Analysis. Findings revealed interpersonal (e.g. stakeholder collaboration and peer support) and intrapersonal (e.g. concerns about personal liability and comfort with the administration of the Blue Card) factors related to the successful implementation of concussion management protocols. Match officials distinguished actions from members of the rugby community as either supporting (e.g. information sharing) or actively resisting (e.g. questioning match official decisions regarding the Blue Card) efforts to implement the Blue Card protocol. Those who had personal experience removing an athlete from play due to a suspected concussion or who administered a Blue Card during the 2019 season reported feeling more comfortable with the process than less experienced peers. However, in this early policy implementation phase, 50% of participants expressed concerns about their personal liability associated with the Blue Card process. Implications for the design and implementation of sport-related concussion research and policy at the amateur level are discussed.

A sustainable strategy to transform cotton waste into renewable cellulose fiber self-reinforcing composite paper

Over 100 million tons of cotton waste are produced annually, representing 35–40% of global textile waste. However, less than 30% of cotton waste is recycled annually. In particular, the fibers less than 7 mm in length dropped during the opening and carding process of cotton waste fabrics have not found a mature utilization method. This work demonstrates and reveals a strategy to transform short cotton fibers into a renewable cellulose fiber self-reinforcing composite paper (CCP). Recycled cotton staple fibers less than 3 mm were prepared into CNFs by TEMPO oxidation. The use of recycled cotton fiber (3–7 mm) as reinforcement and CNFs as a matrix results in a composite material bonded through hydrogen bonding. The recovered cotton fibers and CNFs soliquoid combine together to form a paper pulp, which is then transformed into CCP using wet-laid webs and hot-pressing techniques. When the CNF content reached 5%, the tensile strength of CCP was 86.68 MPa, which is 1.8 times that of the commercial A4 paper. The tensile strength of the CCP only decreases by 25% from the dry state to the wet state, while that of A4 paper after soaking water is almost zero. This makes CCP a special paper with broad application prospects. Since CNF extracted from cotton waste textiles is used as a strengthening agent and without any chemical adhesives added in the paper-making process, which makes the production process of CCP cleaner and can be recycled in a closed loop. Overall, the promising strategy achieves at least four objectives related to cleaner production: maximum recycling of cotton waste, CNF instead of traditional chemical adhesives used in paper-making, water recovery (internal recycling), and realising closed-loop recycling. This technology can potentially be applied to a wide range of colored papers and intelligent packaging papers in the future.

Studies on interfacial shear strength of pineapple leaf fibre from agro-waste reinforced polypropylene composites: Influence of fibre length and carding parameters

This work investigates the potential utilisation of the agro-waste pineapple leaf fibre (PALF) as a green reinforcement in polypropylene (PP) composites. Generally, chemical treatment is used to clean the scratched PALF, and the effluents of those chemicals are discharged into nature. A new mechanical approach (carding) was used in this work to remove the remaining extraneous substances from the scratched and sun-dried PALF instead of using any chemical treatment. The percentage of sticky fibres and dust content decreased, and fibre breakage increased with the increasing number of carding passages. The individualized fibre properties were also influenced by the number of carding passages. The carding process reduced the diameter of PALF due to removal of extraneous materials. The tensile properties of raw PALF improved significantly until the fourth carding passage and further increase in the number of passages did not show any significant influence on the tenacity and modulus. Scanning electron microscopy (SEM) and Fourier-transform infrared spectroscopy (FTIR) confirmed the elimination of hemicellulose along with other gummy and waxy substances from the individualized PALF due to the carding action. The crystallinity % also increased after the carding process due to the removal of amorphous substances. As the reinforcement-matrix interfacial shear strength (IFSS) strongly influences the physico-mechanical properties of composites, IFSS of carded PALF reinforced finer and coarser PP fibre micro-bonded composites was also studied using the single fibre pull-out test (SFPT). Among different composites, the fourth carding passed PALF-reinforced finer PP fibre micro-bonded composite showed the highest IFSS. Additionally, the load- extension curves and SEM images of the tensile pulled-out surface were investigated to study the interfacial adhesion between PALF and PP micro-droplets. The increased surface roughness of PALF due to the carding action resulted in an improvement in the IFSS of PALF-reinforced PP micro-bonded composites.

Examination of acoustic properties of polymer-coated nonwoven textile samples

In this study, different types of polymeric layers were coated in different weights (g/m2) on nonwoven fabrics by extrusion process and then, sound absorption and transmission loss properties of each sample were examined. Nonwoven fabrics were produced from polyester (PET) fiber, formed by the carding process and bonded by the needle punching process. These samples were tested between 50-6000 Hz frequency range to reveal the effect of polymer layer type and weight coated on nonwoven fabrics on the sound absorption and transmission loss performance at the low, medium, and high-frequency values. Polymer layers were coated with the weight of 400 gsm and 800 gsm. Nonwoven fabric samples coated with polyethylene or polypropylene layers and nonwoven fabric samples without polymeric coating were tested by using an impedance tube and compared in terms of sound absorption and transmission loss performance. In the test system, two sides of the samples were tested separately. It was seen that the sound absorption performance of the samples changed in case the sound wave was first incident to the polymeric layer or nonwoven layer.

COST OPTMIZATION WITH INTERNET SUPPORTED FMEA AND FUZZY FMEA ANALYSIS

The global competitive environment forces businesses to produce high-quality and low-cost products and they develop strategies in this regard. At the same, production risks should be identified and their effects on quality and cost should be minimized. The FMEA method is a risk analysis method that produces effective results. Traditional FMEA and Fuzzy FMEA analyses were conducted in the machining workshop of an enterprise with a wide range of products and semi-products in this study. Real-time data was obtained with the help of an embedded set of data processing cards, which use IoT technology. These data have been used to identify errors that cause production bottlenecks, and they were obtained without relying on the machine operator. Improvements were made in the riskiest subjects during the three-month analysis, and it was discovered in the cost records that a total reduction of 6% in production costs was achieved. Simultaneously, traditional FMEA and fuzzy FMEA results were compared.

Sistem Informasi Manajemen Layanan Jasa Asosiasi Konstruksi

The rapid development improvement in Indonesia has had an excessive influential impact in the construction service business sector. Thus, it is necessary to have a construction service management information system. The construction association considers that the management information system needs developing in line with the soaring demand for construction. The aim of this research is to develop a service management information system in construction associations for better performance. The method used in this study is a case or field research, with data collection through observation, interviews, and literature study. The results obtained from the development of a construction service management information system can assist in data processing of Membership Cards (KTA) and Business Entity Certificates (SBU). With this system, it can also help process data more effectively and more efficiently

Comparative characteristics of reproductive function in mentally healthy and mentally ill women with infertility

Background. Issues of the relationship and interaction of menstrual and reproductive function and the mental state of women are not sufficiently studied and need additional research.
 Aim. To conduct a comparative assessment of individual indicators of reproductive function in mentally healthy and mentally ill women with infertility.
 Materials and methods. Of the 348 women with primary and secondary infertility aged 21 to 40 included in the study, 120 had been treated for a psychiatric disorder in a psychiatric hospital before this study. Patients were clinically evaluated using a specially designed questionnaire card and subsequent statistical processing of the results obtained.
 Results. The menstrual-generative function of patients in the study groups significantly differed in several indicators. Mentally ill women with primary infertility were characterized by a later age of menarche, menstruation irregularity or absence during the disease exacerbation, scanty menstruations or heavy menstrual bleeding, inadequate emotional response to menarche, and irregularity and dissatisfaction with sexual life. Spontaneous miscarriages and stillbirths were more common in mentally ill women, especially those with endogenous diseases (schizophrenia, affective disorders), and abortions and gynecological operations were more common in mentally healthy women. Predictors of infertility related to mental health were early onset and chronic course of mental disorder, severity and duration of the disease exacerbations, short and incomplete remissions, and personality changes or a defect (schizophrenic) due to mental illness.
 Conclusion. Menstrual and reproductive functions of women depend on their mental state. In women with mental conditions, menstrual function disorders, along with psychopathological symptoms of diseases (a decrease in sexual vigor, communication, anesthesia of feelings), and decreased social and family adaptation, lead to reproductive function disorders. Improving a woman's mental state can contribute to the recovery of her reproductive function.

Kömür Yakıcılarında Yanma Verimi Tahmini için Gömülü Platformda Çalışabilen Evrişimsel Sinir Ağının Parametre Analizi

Accurately and effectively calculating combustion efficiency in coal burners is crucial for industrial boiler manufacturers. Two main approaches can be used to calculate boiler efficiency: 1) Analyzing the gas emitted from the flue; 2) Visualizing the combustion chamber in the boiler. Flue gas analyzers, which are not user-friendly, come with high costs. Additionally, the physical distance between the flue and the combustion chamber causes the measurement to be delayed. Methods based on visualizing the combustion chamber do not have these disadvantages. This study proposes a system based on visualizing the combustion chamber and has two contributions to the literature: 1) for the first time, the modern Convolutional Neural Networks (CNN) approach is used to estimate combustion efficiency; 2) the CNN architecture with optimal parameters can work on an embedded platform. When classical classification techniques and a CPU-supported processor card are used, efficiency can be calculated from one flame image in 1.7 seconds, while this number increases to approximately 20 frames per second (34 times faster) when the proposed CNN architecture and GPU-supported processor card are used. The results obtained demonstrate the superiority of the proposed CNN architecture and hardware over classical approaches in estimating coal boiler combustion efficiency.

ANALISIS PENGGUNAAN APLIKASI PENGOLAH NILAI RAPORT DALAM MENINGKATAN KEMAMPUAN TEKNOLOGI GURU DI PKPPS AL HIDAYAH KARANGSUCI

This study aims to analyze the use of report card processing applications in improving the technological abilities of teachers at PKPPS Al Hidayah Karangsuci. The research method used is a case study approach using a qualitative approach. The time for the research was carried out for one month, from February 1 to March 1 2023. The research subjects consisted of school principals, curriculum representatives, and homeroom teachers. Data collection techniques namely interviews, observation, and documentation. The results of this study indicate that the use of a report card processing application has the potential to provide convenience and efficiency in managing report card grades. Teachers can reduce the time needed to calculate and process data manually by using this application. However, weaknesses were also found in terms of lack of facilities and infrastructure which could affect the teacher's enthusiasm in learning and understanding grade processing applications.

Design of a Mobile Application Used for Monitoring the Drip Irrigation System in Coffee Crop Using CDIO Methodology

This article will develop the design and integration of an automated drip irrigation system prototype for a coffee crop of Robusta species (Coffea Canephora) with CDIO methodology. It will be implemented using Open Source elements, with an ESP32 processing card, a mobile application developed in Android Studio for monitoring conditions in real-time, including ON/OFF irrigation control, a Water Solenoid Valve that will allow irrigation and sensors for humidity and temperature.
 
 Received: 18 February 2023 / Accepted: 21 April 2023 / Published: 5 May 2023

Polyimide/wool blended woven fabrics for comfortable fire protective clothing

AbstractIn this work, to develop practical fire‐protective clothing with both good flame retardancy and comfort properties, polyimide (PI)/wool blended woven fabrics were carefully made by mixing PI and wool fibers with different mass ratios (100/0, 80/20, 50/50, and 0/100) in the carding process. Thermogravimetric analysis in both air and argon conditions indicated that wool fibers had much lower thermal stability than PI. With more PI fibers added, better thermal stability can be observed. When the mixing ratio of PI/wool was 80/20, the LOI value had a rapid increase from 23% to 31%. Meanwhile, under this ratio, the peak value of the heat release rate surprisingly reduced to a much lower degree (from 425 to 306 W/g), indicating the heat generated is dispersed along the whole burning process. Through comprehensive analysis, it is deduced that the thin molten layer of wool and PI fibers formed a confined space for the heat and volatiles, leading to lower heat release rate and higher non‐flammable gas release of the 80/20 PI/wool sample. Finally, the moisture permeability and fabric style tests demonstrated better comfort properties of the PI/wool blended fabrics.