Journal articles: 'Quality Assurance Matrix'

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Trzepieciński, Tomasz, and Jan Jaworski. "QUALITY ASSURANCE OF MACHINE REPAIR IN PRODUCTION PLANTS." Acta Metallurgica Slovaca 23, no. 4 (December 4, 2017): 387. http://dx.doi.org/10.12776/ams.v23i4.1007.

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<p>The paper considers the problem of the assurance of the quality of machine repair in production plants. The primary quality repair index has been described analytically with the help of the arithmetic matrix in which the relationship between the production capacity and the structural and organizational factors of the quality of repair is taken into account. Ratios of input variables and the output relationship with the primary factors of the quality of machine repair were determined using matrix equations that reflect the relationship between design, process and organizational factors, and the basic quality ratios. It has been concluded that the quality of machine repair depends on proper diagnosis, the wear and tear of individual connections of elements, and the technological processes leading to the restoration of the damaged parts and reassembling the machine.</p>

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Long, David. "The Quality Assurance Matrix in Pharmaceutical Research and Development.A Personal View." Quality Assurance Journal 1, no. 1 (September 1996): 17–22. http://dx.doi.org/10.1002/(sici)1099-1786(199609)1:1<17::aid-qaj1>3.0.co;2-8.

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FORBES, LORRY B., ANDRIJANA RAJIC, and ALVIN A. GAJADHAR. "Proficiency Samples for Quality Assurance in Trichinella Digestion Tests." Journal of Food Protection 61, no. 10 (October 1, 1998): 1396–99. http://dx.doi.org/10.4315/0362-028x-61.10.1396.

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A reliable method to produce proficiency samples containing known numbers of Trichinella spiralis cysts for use in quality assurance systems for Trichinella digestion tests was developed and validated. A filtrate containing Trichinella cysts was produced by homogenizing and filtering the muscles of an experimentally infected rat. Using a stereomicroscope and micropipette, intact cysts were removed from the filtrate and were transferred onto an agar substrate to allow accurate counting and subsequent transfer into a sample matrix. The proficiency sample matrix consisted of 20-g balls of lean ground beef and was combined with 80 g of a Trichinella-free muscle tissue to obtain the required 100-g sample weight for the assay. The mean overall larval recovery from 404 proficiency samples was 93.0%. Larval recoveries ≥95, 85, and 75% occurred in 52.4, 84.4, and 94.3%, respectively, of the 404 samples tested. Results indicated that, after a short training period, technicians with no prior experience in digestion techniques performed as well as experienced technicians. The maximum shelf life of proficiency samples was not determined but was at least 3 weeks. Validation data were used to develop panels composed of proficiency samples prepared as described above and to establish guidelines for the interpretation of proficiency panel results.

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Banci Buonamici, F., A. Compagnucci, L. Marrazzo, S. Russo, and M. Bucciolini. "An intercomparison between film dosimetry and diode matrix for IMRT quality assurance." Medical Physics 34, no. 4 (March 20, 2007): 1372–79. http://dx.doi.org/10.1118/1.2713426.

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Li, Bixin, Ying Zhou, Yancheng Wang, and Junhui Mo. "Matrix-based component dependence representation and its applications in software quality assurance." ACM SIGPLAN Notices 40, no. 11 (November 2005): 29–36. http://dx.doi.org/10.1145/1107541.1107546.

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Pearson, Ben. "The clinical governance of multidisciplinary care." International Journal of Health Governance 22, no. 4 (December 4, 2017): 246–50. http://dx.doi.org/10.1108/ijhg-03-2017-0007.

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Purpose Providers of health and social care services aim to deliver personalised care that is safe, effective, caring, responsive and well led. Multidisciplinary teams often have to work together, either within or across multiple provider organisations in order to achieve this aim. It is valuable to have a framework of clinical governance for such circumstances that enables a shared assurance of quality. To achieve these aims, the purpose of this paper is to present a clinical governance matrix framework developed by the author’s experiences in clinical practice, in service change and in management and leadership. Design/methodology/approach There are seven pillars of clinical governance; patient and public involvement, staffing and staff management, clinical effectiveness and research, using information and IT, education and training, risk management and audit. These seven pillars of clinical governance can be mapped against the five quality domains of safe, effective, caring, responsive and well led to create a matrix that in turn describes the framework we need for quality assurance. Findings The matrix is populated with outcome measures and these are monitored to achieve balance across the framework. The tool can be used at the level of an individual practitioner all the way up to multiple organisations in collaboration. The detail in each cell of the matrix will change accordingly and critically should be developed and owned by the subject of the framework. Originality/value This clinical governance matrix is presented as a methodology to monitor quality assurance in the settings of health and social care.

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Schneider, C. J., J. D. P. Van Dijk, A. A. C. De Leeuw, P. Wust, and W. Baumhoer. "Quality assurance in various radiative hyperthermia systems applying a phantom with LED matrix." International Journal of Hyperthermia 10, no. 5 (January 1994): 733–47. http://dx.doi.org/10.3109/02656739409022451.

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Badrick, Tony, and Peter Graham. "Can a combination of average of normals and “real time” External Quality Assurance replace Internal Quality Control?" Clinical Chemistry and Laboratory Medicine (CCLM) 56, no. 4 (March 28, 2018): 549–53. http://dx.doi.org/10.1515/cclm-2017-0115.

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Abstract Internal Quality Control and External Quality Assurance are separate but related processes that have developed independently in laboratory medicine over many years. They have different sample frequencies, statistical interpretations and immediacy. Both processes have evolved absorbing new understandings of the concept of laboratory error, sample material matrix and assay capability. However, we do not believe at the coalface that either process has led to much improvement in patient outcomes recently. It is the increasing reliability and automation of analytical platforms along with improved stability of reagents that has reduced systematic and random error, which in turn has minimised the risk of running less frequent IQC. We suggest that it is time to rethink the role of both these processes and unite them into a single approach using an Average of Normals model supported by more frequent External Quality Assurance samples. This new paradigm may lead to less confusion for laboratory staff and quicker responses to and identification of out of control situations.

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Vladzymyrskyy, A. V. "Matrix for direct-to-consumer telemedicine quality assessing." Journal of Telemedicine and E-Health 6, no. 4 (December 30, 2020): 24–44. http://dx.doi.org/10.29188/2542-2413-2020-6-4-34-44.

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Introduction. The growing demand for online medical services, the active inclusion of telemedicine consultations in state health insurance programs, and the general intensive development of telemedicine require a methodology for quality assurance and control. Objective is to develop a methodological basis for a comprehensive assessment of the quality and effectiveness of direct-to-consumer telemedicine consultations. Material and methods. There are sources of primary data: systematizing scientific publications (descriptions of models and methodologies for telemedicine quality assessing); own theoretical researches, accumulated practical experience with of directto-consumer telemedicine. Methods of analysis and synthesis have been use. Results and discussion. The matrix for for direct-to-consumer telemedicine quality assessing has formed. It includes four domains «Accessibility», «Efficiency», «Safety» and «Responsibility» from the standpoint of all participants of the distant interaction processes: patient and/or legal representative; medical consultant; operator of a telemedicine information system; medical organization; health care system (society). The matrix takes into account the aspects of goal-setting and the interests of each participant. There are structured metrics in frame of each domain. Conclusions. The matrix can be used as a basis for scientific research and as a methodology for internal and departmental quality control of medical care provided via telemedicine technologies.

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Koumoulos, Elias, and Costas Charitidis. "Integrity of Carbon-Fibre Epoxy Composites through a Nanomechanical Mapping Protocol towards Quality Assurance." Fibers 6, no. 4 (October 11, 2018): 78. http://dx.doi.org/10.3390/fib6040078.

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The purpose of this study is to assess the integrity of carbon-fibre reinforced plastics (CFRP) comprising of commercial and surface modified CFs through nanomechanical mapping protocol, towards the feasibility of nanoindentation tool as a quality assurance means in a composite manufacturing process. Carbon fibre surface modification was selected for enhancement of the wetting properties of carbon fibres in order to improve the adhesion force between the fibre and the polymer matrix. In all cases, epoxy resin was used as a matrix for the manufacturing of composite samples. Plastic deformation/elastic recovery were recorded (together with viscoelasticity and adhesion-discontinuities and fluctuations during measurement), while elastic modulus values are also mapped. Moreover, the resistance to applied load is assessed and compared for all cases.

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Dolmatov, Dmitry, Yana Salchak, Dmitriy Sednev, and Roman Pinchuk. "Application of Fourier-Domain Post-Processing Technique for Ultrasonic Imaging with Matrix Phased Arrays in Advanced Manufacturing of Details and Machines." Materials Science Forum 938 (October 2018): 81–88. http://dx.doi.org/10.4028/www.scientific.net/msf.938.81.

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Quality of the components in the mechanical engineering is of the utmost importance. Most of quality control procedures can be provided by advanced quality assurance methods that enable visualization of inner structure of a component within all of the occurring defects. This paper suggests an innovative post-processing technique for Full-Matrix ultrasonic imaging with Matrix phased arrays in the case of immersion testing. Evaluation of the reliability was performed by simulation via CIVA software as well as by experimental testing of a real component with given defects. The obtained results of the research demonstrated high sensitivity and accuracy of the suggested technique.

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Vanany, Iwan, Ghoffar Albab Maarif, and Jan Mei Soon. "Application of multi-based quality function deployment (QFD) model to improve halal meat industry." Journal of Islamic Marketing 10, no. 1 (March 4, 2019): 97–124. http://dx.doi.org/10.1108/jima-10-2017-0119.

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PurposeHalal food market has grown significantly over the years. As consumers are becoming more aware of the significance of halal food products and certification, food industries will benefit from a model that controls and assures halal food production. Quality function deployment (QFD) is a tool to support product design and improve food quality systems. Thus, the purpose of this study is to propose a multi-phased QFD model to identify key processes and prioritise programmes to improve halal food production.Design/methodology/approachThe matrix in the first phase was designed using the halal assurance system (HAS) requirements and the set of production process. The relationships between HAS requirements and a set of halal critical factors [i.e. raw material (chicken), workers, procedures and documentation, equipment and premises] were established in the second phase. In the final phase, potential problems and improvement programmes arising under each critical halal phase were identified. The QFD model was developed and applied in a chicken processing plant in Indonesia.FindingsIn Matrix 1, slaughtering, meat processing and meat delivery were identified as the key process, whilst equipment, procedures and documentation and workers were determined as the most critical halal factors in Matrix 2. The final phase of the QFD approach assisted the chicken processing plant in reducing potential issues by identifying key improvement programmes. The prioritisation of improvement programmes also supports the company in decision-making and allocating their resources accordingly.Practical implicationsThe multi-phased QFD model can be designed and adapted to specific food industry. It can be used to assure halal food production and inform food industry which area to prioritise and to allocate resources accordingly. The improvement of halal food production will assist food companies to target and access international markets.Originality/valueThis study proposed a new multi-phased QFD model that can be used as a halal food assurance and prioritisation tool by the food industry. This model will benefit food industry intending to implement halal assurance scheme in their process, halal auditors and policymakers.

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Gong, Li Xiong, Liang Tang, and Ming Zhong Yang. "Research and Application on QFD Based on Fuzzy Analytic Hierarchy Process." Applied Mechanics and Materials 29-32 (August 2010): 2516–20. http://dx.doi.org/10.4028/www.scientific.net/amm.29-32.2516.

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Quality Function Deployment is a quality assurance method that user-driven and meeting customer demands mostly in process of product development and design. It is emphasized to ensure requirements and measures of quality. And Fuzzy Analytic Hierarchy Process considered vague language of judgment matrix can overcome the subjectivism and one-sidedness considered of Analytic Hierarchy Process. Approach of Fuzzy Analytic Hierarchy Process is applied to model Quality Function Deployment in an example of small ERP software development in the study.

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Benito, G., J. C. Sáez, J. B. Blázquez, and J. Quiñones. "SURVEILLANCE OF ENVIRONMENTAL DOSE RATE WITH THE COVARIANCE MATRIX." Radiation Protection Dosimetry 184, no. 2 (December 1, 2018): 230–36. http://dx.doi.org/10.1093/rpd/ncy204.

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Abstract The objective of this study is the operational verification of an environmental dose rate monitoring network composed by several sensors. The verification of the study has been tested on the CIEMAT’s Radiological Network, establishing a records quality assurance of the detectors using the covariance matrix and the eigenvalues. The technique has revealed an underlying records malfunction, which have not been appreciated by applying conventional surveillance. In this sense, the malfunction has economic and security consequences, which can be minimized with an alternative methodology, which guarantees the radiological protection of a local area according to the Regulatory Agency.

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Robbani, Syifa, Farah Fahma, and Sugiarto Sugiarto. "CELLULOSIC PADS AS MATRIX SACHET ANTIMICROBIAL: A REVIEW." AGROINTEK 15, no. 2 (June 3, 2021): 554–65. http://dx.doi.org/10.21107/agrointek.v15i2.9366.

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The advancement of active packaging technology has contributed to the need for customer assurance of the quality and protection of fresh foods and agricultural products. An example of active packaging to maintain food quality and improve product protection is the use of antimicrobial pads. Antimicrobial pads are a type of active packaging that releases active agents into the headspace food packaging in order to prevent, inhibit or destroy the growth of microorganisms.. Antimicrobial pads are very easy to apply to food products by placing them on the bottom of the product or inserting them into the packaging material. This literature study discusses the characterization of cellulose as a major component in the manufacture of pads, techniques for the incorporation of antimicrobial compounds into pads, and suitable applications for the inhibition of microorganisms in food products. Apart from that, this literature study also discusses the advantages and disadvantages of antimicrobial pads as active packs.

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Hannon, W. Harry, D. Sue Lewis, Wanda K. Jones, and Mary K. Powell. "A Quality Assurance Program for Human Immunodeficiency Virus Seropositivity Screening of Dried-Blood Spot Specimens." Infection Control 10, no. 01 (January 1989): 8–13. http://dx.doi.org/10.1086/645908.

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AbstractEpidemiologic projects have been implemented for using dried-blood spot (DBS) specimens routinely collected on filter paper from neonates as a seroepidemiologic resource to monitor seroprevalence of human immunodeficiency virus (HIV) among child-bearing women. To ensure the quality of the data base produced from the national and other epidemiologic surveys, a quality assurance program was developed to interact with all the neonatal screening laboratories. The focus of the Centers for Disease Control's quality assurance program for HIV seropositivity testing of neonatal blood specimens is to maintain a national program to produce, certify, and provide external quality control materials as DBSs on filter paper, to monitor the filter paper matrix, to operate an external performance surveillance program, and to provide other special and consultative services. The dried-blood control and surveillance materials are certified by rigorous testing for accuracy, stability, and homogeneity. Preliminary results from the first performance evaluation of screening laboratories indicated excellent performance.

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Lewandowska, Anna, Zenon Foltynowicz, and Andrzej Podlesny. "Comparative lca of industrial objects part 1: lca data quality assurance — sensitivity analysis and pedigree matrix." International Journal of Life Cycle Assessment 9, no. 2 (March 2004): 86–89. http://dx.doi.org/10.1007/bf02978567.

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Ishizu, H., and T. Yamada. "Development of certified matrix reference materials for quality assurance of screening 134Cs and 137Cs in food." Applied Radiation and Isotopes 81 (November 2013): 3–6. http://dx.doi.org/10.1016/j.apradiso.2013.03.018.

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Tahoun, Ibrahim F., Randa N. Yamani, and Adel B. Shehata. "Preparation of matrix reference material for quality assurance and control of pesticides analysis in olive oil." Accreditation and Quality Assurance 24, no. 4 (April 24, 2019): 297–304. http://dx.doi.org/10.1007/s00769-019-01380-0.

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Pretorius, Carel J., Sandra Klingberg, Leslie Johnson, Rodney Park, Urs Wilgen, and Jacobus P. J. Ungerer. "Investigation of cholesterol bias due to a matrix effect of external quality assurance samples: how true is your cholesterol method?" Annals of Clinical Biochemistry: International Journal of Laboratory Medicine 49, no. 6 (September 27, 2012): 538–41. http://dx.doi.org/10.1258/acb.2012.012009.

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Background Comparability of cholesterol measurement is clinically required and external quality assurance (EQA) programmes are important to verify the trueness of routine methods. Methods We developed a gas chromatography-isotope dilution mass spectrometry (GC-IDMS) total cholesterol assay to investigate the cause of a suspected matrix-related negative bias with the Beckman Coulter enzymatic method discovered in an EQA programme. The GC-IDMS method was calibrated with certified reference material and verified against a secondary reference method. Bias between the GC-IDMS and Beckman Coulter methods was estimated according to Clinical and Laboratory Standards Institute (CLSI) protocol EP9-A2 with 40 clinical samples. Results At clinically important decision levels, no significant bias was demonstrated on patients' samples (all results within a ±3% limit). A matrix effect confined to the EQA material that affected the Beckman Coulter total cholesterol method was confirmed. Conclusions The GC-IDMS method is suitable as a higher order total cholesterol method in a routine clinical laboratory. Matrix effects defeat the objectives of EQA schemes by preventing the verification of trueness. Given the importance of obtaining a true cholesterol result without systematic error, we recommend that EQA material without matrix effects should be used.

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Hoff, Rodrigo Barcellos, Gabriel Rübensam, Louise Jank, Fabiano Barreto, Maria do Carmo Ruaro Peralba, Tânia Mara Pizzolato, M. Silvia Díaz-Cruz, and Damià Barceló. "Analytical quality assurance in veterinary drug residue analysis methods: Matrix effects determination and monitoring for sulfonamides analysis." Talanta 132 (January 2015): 443–50. http://dx.doi.org/10.1016/j.talanta.2014.08.046.

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Sizirici, Banu, and Berrin Tansel. "Improvement of data quality for post-closure care of landfills using a tiered decision matrix approach case studies." Waste Management & Research: The Journal for a Sustainable Circular Economy 30, no. 2 (November 29, 2011): 171–80. http://dx.doi.org/10.1177/0734242x11427940.

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The development of a systematic approach which can be used as a decision-making tool to extend or shorten the post-closure care (PCC) period requires technically sound and justifiable methods. These methods can incorporate analysis and interpretation of available data and information from closed landfill. Analysis of existing data from closed landfills may present challenges due to variations in the data collection procedures, data analysis methods and reporting methodologies used during active and post-closure periods of a landfill. A tiered decision matrix was developed to assess and verify the quality of monitoring data collected and documented from closed landfills. The matrix provides a baseline for the needs to improve the quality of data collection and documentation for current and future practices. Challenges due to discrepancies in data reporting and inconsistencies in quality assurance/quality control protocols during data collection, reporting, and analyses are presented with case studies. Solutions are presented to validate and improve the quality of available data based on this study.

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Gubal, Anna, Victoria Chuchina, Ivan Trefilov, Oleg Glumov, Viktor Yakobson, Alexander Titov, Nikolay Solovyev, and Alexander Ganeev. "Application of Glow Discharge Mass Spectrometry for the Monitoring of Dopant Distribution in Optical Crystals Grown by TSSG Method." Crystals 10, no. 6 (June 1, 2020): 458. http://dx.doi.org/10.3390/cryst10060458.

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Direct analysis of matrix and admixture elements in non-conducting crystals is a relevant analytical task in terms of quality assurance of optical materials. The current study aimed to develop a method capable to assess the inhomogeneity of optical crystals with sufficient sensitivity. K1−xRbxTiOPO4 (x = 0.002 and 0.05) and KGd1−yNdy(WO4)2 (y = 0.05) were grown using the top-seeded solution growth method (TSSG). The samples were analyzed by microsecond direct current pulsed glow discharge time-of-flight mass spectrometry (µs-PDC TOF GDMS). The data were compared with the results obtained by scanning electron microscope-energy dispersive X-ray spectroscopy (SEM EDX) and spectrophotometry and validated by the analysis of certified reference material. Sample glow discharge sputtering and analysis were optimized and implemented in real samples. Sample coating with a silver layer and sample pressing in the metallic matrix were proposed to ensure effective sputtering for K1−xRbxTiOPO4 and KGd1−yNdy(WO4)2, respectively. Using the designed method, the inhomogeneity of the dopant’s distribution was demonstrated along the growth axis and in the case of K1−xRbxTiOPO4, also in the growth sectors of different faces. The designed method is applicable for the direct analysis of optical crystal and may be implemented in quality assurance in the manufacturing of optical materials.

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Abdrhman Mahmoud Gamil. "Pharmaceutical procurement practice aspects." World Journal of Advanced Research and Reviews 8, no. 3 (December 30, 2020): 337–49. http://dx.doi.org/10.30574/wjarr.2020.8.3.0489.

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Procurement is the most important part of the pharmaceutical logistic cycle. It is the process of acquiring supplies after a properly selected list of products. The procurement system or model depends on the type of organization weather it is governmental or private, centralized or decentralized, autonomous or semiautonomous. The objectives of procurement system is to make available the right drug in an appropriate quantities of adequate quality from a reliable supplier at the right time with the lowest possible prices through an ethical and legal procedures. Prequalification of suppliers is the successful quality assurance activity. Needs and funds can be reconciled and a rational cut can be done by using ABC- VAN matrix technique. Purchasing should be by transparent competition through open tender, restrictive tender, restricted competition or in certain cases by direct negotiation by transparent committee leading to transparent contract. One of the most important procurement practice for the system to succeed is the reliable payment and efficient financial management and monitoring the supplier performance. The system should have an efficient quality assurance program with annual auditing and regular reports.

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Neacsu, Elena. "Quality Assurance of Analytical Measurements—A Vital Element in Safety Performance in the Nuclear Field." Proceedings 55, no. 1 (September 17, 2020): 2. http://dx.doi.org/10.3390/proceedings2020055002.

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The (International Atomic Energy Agency) IAEA’s fundamental safety objective is to protect people and the environment from harmful effects of ionizing radiation. The safety principles apply to all facilities and all activities to reduce existing radiation risks. Analytical quality assurance has gained in importance in many scientific areas, including the analysis of radioactive specimens that require a thorough investigation and regulations for safety and ecological reasons. The use of certified reference materials is an essential pillar for the assessment of the quality of analytical data. Still, such matrix-matched certified reference materials are unfortunately not available for most investigations relevant to the nuclear domain. Therefore, other strategies have to be established, i.e., to compare the analytical results obtained for a particular instrumental technique, with data from another methodology whose analyte detection is based on a different physical principle.

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Su, Xin, Haolong Liu, and Shunqi Hou. "The Trilateral Evolutionary Game of Agri-Food Quality in Farmer-Supermarket Direct Purchase: A Simulation Approach." Complexity 2018 (2018): 1–11. http://dx.doi.org/10.1155/2018/5185497.

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The prevalence of opportunistic behaviors in agri-food production and circulation results in frequent quality accidents in emerging economies. Numerous researches have discussed effective countermeasures to this problem, but few of them focus on the effectiveness and stability of quality assurance systems. Owing to the bounded rationality and information asymmetry, the dynamic quality game among producers, marketers, and consumers has significant characteristics of complexity. This paper aims at discussing the farmer-supermarket direct purchase’s contributions to ensure the agri-food quality and analyzing the effectiveness, stability, and key factors of this new industrial organization. Based on the evolutionary game theory, we establish the trilateral-game payoff matrix, build up the replicator dynamic equations, and discuss possible evolutionary stable states. The simulation results show that the evolutionary system converges to desired stability faster, when the high-quality agri-food’s market premium increases and the penalty for violating quality standards increases. Furthermore, when farmers share more high-quality agri-food’s market premiums and marketers compensate more for violating the quality standards than before, the evolutionary system also converges to desired stability faster. Therefore, the quality information tracing technology, farmers and marketers’ fair distribution of profits and risks, and consumers’ capabilities to safeguard their legal rights are the three key factors to maintain the effectiveness and stability of quality assurance systems.

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Najimdeen, Abdul Hakeem Alade, Ismail Hussein Amzat, and Hairuddin Bin Mohd Ali. "The Impact of Service Quality Dimensions on Students’ Satisfaction: A Study of International Students in Malaysian Public Universities." IIUM Journal of Educational Studies 9, no. 2 (June 21, 2021): 89–108. http://dx.doi.org/10.31436/ijes.v9i2.324.

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This study is conducted to examine the relationship between quality service and students’ satisfaction based on the perceptions of international students in Malaysian public universities. The questionnaire used was adapted from ServQual and Customer Satisfaction instruments. Using the mean scores, Cronbach Alpha, correlation matrix, and regression analysis, the findings indicated moderate positive perceptions of overall university quality service and satisfaction with a low level of satisfaction for some dimensions of quality service such as empathy and assurance. This gap can be minimized by improving the issues of trust, courtesy, and responsiveness of university service with more focus on the emotional aspects and human connection in delivery service.

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Brander, Susanne M., Violet C. Renick, Melissa M. Foley, Clare Steele, Mary Woo, Amy Lusher, Steve Carr, et al. "Sampling and Quality Assurance and Quality Control: A Guide for Scientists Investigating the Occurrence of Microplastics Across Matrices." Applied Spectroscopy 74, no. 9 (September 2020): 1099–125. http://dx.doi.org/10.1177/0003702820945713.

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Plastic pollution is a defining environmental contaminant and is considered to be one of the greatest environmental threats of the Anthropocene, with its presence documented across aquatic and terrestrial ecosystems. The majority of this plastic debris falls into the micro (1 μm–5 mm) or nano (1–1000 nm) size range and comes from primary and secondary sources. Its small size makes it cumbersome to isolate and analyze reproducibly, and its ubiquitous distribution creates numerous challenges when controlling for background contamination across matrices (e.g., sediment, tissue, water, air). Although research on microplastics represents a relatively nascent subfield, burgeoning interest in questions surrounding the fate and effects of these debris items creates a pressing need for harmonized sampling protocols and quality control approaches. For results across laboratories to be reproducible and comparable, it is imperative that guidelines based on vetted protocols be readily available to research groups, many of which are either new to plastics research or, as with any new subfield, have arrived at current approaches through a process of trial-and-error rather than in consultation with the greater scientific community. The goals of this manuscript are to (i) outline the steps necessary to conduct general as well as matrix-specific quality assurance and quality control based on sample type and associated constraints, (ii) briefly review current findings across matrices, and (iii) provide guidance for the design of sampling regimes. Specific attention is paid to the source of microplastic pollution as well as the pathway by which contamination occurs, with details provided regarding each step in the process from generating appropriate questions to sampling design and collection.

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Mackay, Mark, Gabe Hegedus, and Tony Badrick. "A simple matrix of analytical performance to identify assays that risk patients using External Quality Assurance Program data." Clinical Biochemistry 49, no. 7-8 (May 2016): 596–600. http://dx.doi.org/10.1016/j.clinbiochem.2016.01.014.

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Shrestha, Mikha. "Service quality and customer satisfaction on two wheelers in Nepal." Management Dynamics 23, no. 1 (March 9, 2020): 85–92. http://dx.doi.org/10.3126/md.v23i1.35563.

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Service quality is a key to survival for all service providing companies. The modern customer is savvy and technology driven who is demanding better services. With better services companies ensure customer satisfaction which eventually leads to retention of customers. This study accesses to explore the relation between service quality variables and customer satisfaction on two wheelers in Nepal. For this purpose, descriptive cum analytical research design was been adopted. Total 200 Bajaj motorbike owners were taken as a sample. Primary data have been used in the study with the pre structured questionnaires. The findings from correlation matrix showed a significant and positive relationship between service quality and customer satisfaction while comparing dimensions like responsiveness, reliability, assurance, tangibility and empathy. This research resulted in the development of a valid and reliable scale for measuring service quality in the Bajaj two wheelers in Nepal.

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Liang, Gin-Shuh, Tzeu-Chen Han, and Tsung-Yu Chou. "Using a Fuzzy Quality Function Deployment Model to Identify Improvement Points in Airport Cargo Terminals." Transportation Research Record: Journal of the Transportation Research Board 1935, no. 1 (January 2005): 130–40. http://dx.doi.org/10.1177/0361198105193500115.

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The main purpose of this paper is to present a fuzzy quality function deployment model to achieve service quality assurance before implementing service action. First, customer needs with their importance and satisfaction levels acquired from practical investigations are constructed. Then, by combining the experts’ opinions, service management requirements are developed for satisfying the observed customer needs. In addition, a fuzzy relation matrix for linking service management requirements to customer needs is constructed on the basis of cross-functional expertise. The aggregated fuzzy assessments of different service management requirements are also ranked to prioritize and determine their importance. Finally, the Chiang Kai-shek International Airport cargo terminal in Taiwan is used to demonstrate the proposed approach.

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Maulana, Doddy. "ANALISIS KEBIJAKAN PADA JURUSAN TEKNIK ELEKTRO DENGAN MENGGUNAKAN MATRIKS MACMILLAN DALAM RANGKA IMPLEMENTASI STRATEGI KOMPETITIF MENGHADAPI MASYARAKAT EKONOMI ASEAN." Adbis: Jurnal Administrasi dan Bisnis 12, no. 2 (December 31, 2018): 191. http://dx.doi.org/10.33795/j-adbis.v12i2.58.

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The objective of this research is to obtain the best policy at Electro Engineering Department, State Polytechnic of Malang to face ASEAN Economic Society. The method of the Research is: MacMillan Matrix Analysis, and Determination of strategic policy. The results of the research are the improvement of policy at Electro Engineering Department to face ASEAN Economic Society which covering aspects: teaching and education, students and graduate, research and community service, education management systems, human resources, finance, quality assurance systems and facilities.

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Reinhart, Gunther, Jakob Kurfer, Markus Westermeier, and Tobias Zeilinger. "Integrated Product and Process Model for Production System Design and Quality Assurance for EV Battery Cells." Advanced Materials Research 907 (April 2014): 365–78. http://dx.doi.org/10.4028/www.scientific.net/amr.907.365.

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The megatrend electric mobility induces a significant demand for high energy and high power secondary batteries. Currently lithium-ion technologies are the most promising solution for electrochemical energy storage in hybrid electric vehicles (HEV) and battery electric vehicles (BEV) [1; .Core factors that influence the quality, the performance and the cost of high energy lithium-ion batteries are production technologies, quality measurement techniques and quality management methods [3; . For this reason the Institute for Machine Tools and Industrial Management set up the Research Center for the Production of High-Energy Battery Cells (R-PHEB). In this research center production technologies are investigated according to industrial requirements. Research thrust areas are: first, process and assembly system design; second, quality assurance and management; and third, value chain analysis and design.The mass production of large lithium-ion cells for EV applications is an infant industry; new production technologies are often used in this field [. Hence, the influences of those processes on product properties are not known and the product quality can be evaluated only after the final production step. In order to obtain a resource efficient and economic production of lithium-ion cells, the correlations between the cell performance, the cell quality, the production processes and the assembly system design need to be revealed.This paper focuses on fundamental investigations of the process chain for the production of lithium-ion cells. It introduces a product-and a process-model, both of which specifically match the requirements in the field of battery production. The models can be used individually to describe the product structure or the process chain. Additionally they can be linked via a correlation matrix in order to visualize the dependencies between the requirement specifications of lithium-ion cells and the manufacturing processes (including process alternatives). Both models are based on a layered structure and contain information about battery cell design, battery type and production processes covering all tasks from coating the electrode coils to the start-of-operation of the cells.The product-model, the process-model and the correlation matrix will be implemented in a database, which in the future can be used for the methodical design of assembly systems as well as to investigate the correlations between process parameters and output quality. Furthermore, the database can assist when evaluating established process chains or preparing make-or-buy decisions in the context of battery cell production.

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Mählitz, Løvik, Figi, Schreiner, Kuntz, Korf, Rösslein, Wäger, and Rotter. "Characterizing the Urban Mine–Challenges of Simplified Chemical Analysis of Anthropogenic Mineral Residues." Resources 8, no. 3 (July 26, 2019): 132. http://dx.doi.org/10.3390/resources8030132.

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Anthropogenic mineral residues are characterized by their material complexity and heterogeneity, which pose challenges to the chemical analysis of multiple elements. However, creating an urban mine knowledge database requires data using affordable and simple chemical analysis methods, providing accurate and valid results. In this study, we assess the applicability of simplified multi-element chemical analysis methods for two anthropogenic mineral waste matrices: (1) lithium-ion battery ash that was obtained from thermal pre-treatment and (2) rare earth elements (REE)-bearing iron-apatite ore from a Swedish tailing dam. For both samples, simplified methods comprising ‘inhouse’ wet-chemical analysis and energy-dispersive Xray fluorescence (ED-XRF) spectrometry were compared to the results of the developed matrix-specific validated methods. Simplified wet-chemical analyses showed significant differences when compared to the validated method, despite proven internal quality assurance, such as verification of sample homogeneity, precision, and accuracy. Matrix-specific problems, such as incomplete digestion and overlapping spectra due to similar spectral lines (ICP-OES) or element masses (ICP-MS), can result in quadruple overestimations or underestimation by half when compared to the reference value. ED-XRF analysis proved to be applicable as semi-quantitative analysis for elements with mass fractions higher than 1000 ppm and an atomic number between Z 12 and Z 50. For elements with low mass fractions, ED-XRF analysis performed poorly and showed deviations of up to 90 times the validated value. Concerning all the results, we conclude that the characterization of anthropogenic mineral residues is prone to matrix-specific interferences, which have to be addressed with additional quality assurance measures.

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Yskak, Nabi. "Expanding the Application of EFQM model for Institutional Accreditation of Educational Organizations." Advances in Social Sciences Research Journal 8, no. 1 (January 24, 2021): 289–95. http://dx.doi.org/10.14738/assrj.81.9624.

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Relevance of this article topic consists in the necessity to find some alternative to the existing practice of using of the 2015 Standards and Guidelines for Quality Assurance in the EHEA (ESG-15) for accreditation of educational organizations in Kazakhstan. This study purpose is to develop the ways of expanding the European Foundation for Quality Management (EFQM) use for institutional accreditation of universities. Methods: comparativ analysis, formalization method. Results: 1) the genesis, functions and levels of educational organizations’ accreditation in Kazakhstan are described; 2) existence of the link between EFQM and ESG-15 is proved, however, EFQM is more adapted to institutional accreditation of higher education institutions; and 3) it is shown if formalized data are used to prescribe the scores when filling in the RADAR matrix, then filling in the RADAR matrix will be easier, and subjectivity will decrease, and accuracy will increase.

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Swope, Viki B., and Steven T. Boyce. "Differential Expression of Matrix Metalloproteinase-1 in Vitro Corresponds to Tissue Morphogenesis and Quality Assurance of Cultured Skin Substitutes1." Journal of Surgical Research 128, no. 1 (September 2005): 79–86. http://dx.doi.org/10.1016/j.jss.2005.03.018.

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Sicoe, G. M., N. Belu, N. Rachieru, and E. V. Nicolae. "Improvement of the customer satisfaction through Quality Assurance Matrix and QC-Story methods: A case study from automotive industry." IOP Conference Series: Materials Science and Engineering 252 (October 2017): 012045. http://dx.doi.org/10.1088/1757-899x/252/1/012045.

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Fang, Liping, Linyan Huang, Gang Yang, Yang Jiang, Haiping Liu, Bingwen Lu, Yaxian Zhao, and Wen Tian. "Development of a Water Matrix Certified Reference Material for Volatile Organic Compounds Analysis in Water." Molecules 26, no. 14 (July 20, 2021): 4370. http://dx.doi.org/10.3390/molecules26144370.

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Water matrix certified reference material (MCRM) of volatile organic compounds (VOCs) is used to provide quality assurance and quality control (QA/QC) during the analysis of VOCs in water. In this research, a water MCRM of 28 VOCs was developed using a “reconstitution” approach by adding VOCs spiking, methanol solution into pure water immediately prior to analysis. The VOCs spiking solution was prepared gravimetrically by dividing 28 VOCs into seven groups, then based on ISO Guide 35, using gas chromatography-mass spectrometry (GC-MS) to investigate the homogeneity and long-term stability. The studies of homogeneity and long-term stability indicated that the batch of VOCs spiking solution was homogeneous and stable at room temperature for at least 15 months. Moreover, the water MCRM of 28 VOCs was certified by a network of nine competent laboratories, and the certified values and expanded uncertainties of 28 VOCs ranged from 6.2 to 17 μg/L and 0.5 to 5.3 μg/L, respectively.

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Finkel, F. V., А. J. Kail, А. D. Sokolov, and V. V. Gostilo. "Metrological Assurance for Radioactive Waste Monitors Based on HPGe Detectors." Nuclear and Radiation Safety, no. 4(80) (December 3, 2018): 47–53. http://dx.doi.org/10.32918/nrs.2018.4(80).08.

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The methods of calibration and parameters measurements of radioactive waste monitors with the purpose to provide the unity and required precision of the characterization of waste activity measurements are reviewed. The monitors based on HPGe detectors are intended for small, medium and large volumes of radioactive waste and are equipped with rotation mechanisms for the barrel with strain-gauge balance and actuator for horizontal shifting, dosimeters for dose rate measurement, software and accounting system by bar code. The required range of the measured activity which is necessary for the operation of the spectrometric section without overloadings is ensured by removal or approaching of the barrel to the detector and position change of the vertical lead shields of the collimator. The rotation of the barrel with RAW ensures decreasing the measurement error at the presence of the heterogeneities by density of the filler and inequalities of activity distribution by the barrel volume. The monitors have different mechanisms and accessories for the measurements in various modes. The calibration of the monitors by the registration efficiency is performed using standard sources in point geometry as well as by the complex calculation of the efficiencies curves by Monte Carlo simulation method. For calibration of the monitors by the method of direct comparison the volumetric activities sources in real 200, 400 and 700 l barrels with matrix-fillers placed inside were manufactured and certified. The manufactured volumetric measures of activity have been certificated at the All-Russian Research Institute of Metrology named after D. I. Mendeleev. An integral part of the metrological support of all developed RAWmonitors is their software, features of which are being considered.

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Belontz, Sara L., and Patricia L. Corcoran. "Prioritizing Suitable Quality Assurance and Control Standards to Reduce Laboratory Airborne Microfibre Contamination in Sediment Samples." Environments 8, no. 9 (September 3, 2021): 89. http://dx.doi.org/10.3390/environments8090089.

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The ubiquity and distribution of microplastics, particularly microfibres, in outdoor and indoor environments makes it challenging when assessing and controlling background contamination, as atmospheric particles can be unintentionally introduced into a sample during laboratory analysis. As such, an intra-laboratory examination and literature review was completed to quantify background contamination in sediment samples, in addition to comparing reported quality assurance and control (QA/QC) protocols in 50 studies examining microplastics in sediment from 2010 to 2021. The intra-lab analysis prioritizes negative controls, placing procedural blanks in various working labs designed to prepare, process, and microscopically analyse microplastics in sediment. All four labs are subject to microfibre contamination; however, following the addition of alternative clean-air devices (microscope enclosure and HEPA air purifiers), contamination decreased by 66% in laboratory B, and 70% in laboratory C. A review of microplastic studies suggests that 82% are not including or reporting alternative clean-air devices in their QA/QC approaches. These studies are found to be at greater risk of secondary contamination, as 72% of them ranked as medium to high contamination risk. It is imperative that laboratories incorporate matrix-specific QA/QC approaches to minimize false positives and improve transparency and harmonization across studies.

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Thompson, Michael, Steven L. R. Ellison, Aleš Fajgelj, Paul Willetts, and Roger Wood. "Harmonized guidelines for the use of recovery information in analytical measurement." Pure and Applied Chemistry 71, no. 2 (February 28, 1999): 337–48. http://dx.doi.org/10.1351/pac199971020337.

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Synopsis: ISO, IUPAC and AOAC INTERNATIONAL have co-operated to produce agreed protocols or guidelines on the "Design, Conduct and Interpretation of Method Performance Studies" [1] on the "Proficiency Testing of (Chemical) Analytical Laboratories" [2] and on "Internal Quality Control in Analytical Chemistry Laboratories" [3]. The Working Group that produced these protocols/guidelines was asked to prepare guidelines on the use of recovery information in analytical measurement. Such guidelines would have to outline minimum recommendations to laboratories producing analytical data on the internal quality control procedures to be employed.A draft of the guidelines was discussed at the Seventh International Symposium on the Harmonization of Quality Assurance Systems in Chemical Laboratory, sponsored by IUPAC/ISO/AOAC INTERNATIONAL, held in Orlando, USA, 4-5 September 1996. Proceedings from that Symposium are available [4].The purpose of these guidelines is to outline the conceptual framework needed for considering those types of analysis where loss of analyte during the analytical procedure is inevitable. Certain questions cannot be satisfactorily addressed, and hence remain irreducibly complex, unless such a conceptual framework is established. The questions at issue involve (a) the validity of methods for estimating the recovery of the analyte from the matrix of the test material, and (b) whether the recovery estimate should be used to correct the raw data to produce the test result. The types of chemical analysis most affected by these considerations are those where an organic analyte is present at very low concentrations in a complex matrix."Protocol for the Design, Conduct and Interpretation of Method Performance Studies", W. Horwitz, Pure Appl. Chem. 60, 855- 864 (1988), revised, 67, 331-343 (1995)."The International Harmonized Protocol for the Proficiency Testing of (Chemical) Analytical Laboratories", M. Thompson and R. Wood, Pure Appl. Chem. 65, 2123-2144 (1993). (Also published in J. AOAC International 76, 926-940 (1993). "Harmonized Guidelines for Internal Quality Control in Analytical Chemistry Laboratories", M. Thompson and R. Wood, Pure Appl. Chem. 67, 49-56 (1995)."Quality Assurance for Analytical Laboratories", edited M. Parkany, Royal Society of Chemistry, London, UK, 1996.

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Angeyo, K. H., S. Gari, J. M. Mangala, and A. O. Mustapha. "Principal component analysis-assisted energy dispersive X-ray fluorescence spectroscopy for non-invasive quality assurance characterization of complex matrix materials." X-Ray Spectrometry 41, no. 5 (June 12, 2012): 321–27. http://dx.doi.org/10.1002/xrs.2405.

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Rupnow, Tyson D., and Patrick J. Icenogle. "Surface Resistivity Measurements Evaluated as Alternative to Rapid Chloride Permeability Test for Quality Assurance and Acceptance." Transportation Research Record: Journal of the Transportation Research Board 2290, no. 1 (January 2012): 30–37. http://dx.doi.org/10.3141/2290-04.

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ASTM C1202 tests were conducted at various ages with the corresponding surface resistivity test, and the results were compared. Samples tested included field- and laboratory-prepared samples. The laboratory test matrix tested several mixtures common to Louisiana at a wide range of ratios of water to cementitious materials (w/cm) to evaluate the range of the surface resistivity meter. The surface resistivity measurements correlated well with rapid chloride permeability measurements across a wide range of permeability values and sample testing ages. Suitable correlations were found between both the 14-day and the 28-day surface resistivity values and the 56-day rapid chloride permeability values. The variability of the surface resistivity test results is usually less than the variability of the rapid chloride permeability test results. The surface resistivity meter was also able to identify great differences in w/cm ratios for the same mixtures. The surface resistivity meter was determined to be user friendly. The preliminary cost–benefit analysis showed that implementation of the device would save the department about $101,000 in personnel costs in the first year. It is estimated that contractors would save about $1.5 million in quality control costs. The cost–benefit ratio for this project is estimated to be about 15. A Louisiana Department of Transportation and Development test requirements procedure, TR 233, has been developed and implementation of the surface resistivity device has begun.

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Cox, Julian. "Real-time testing of foods: the Holy Grail?" Microbiology Australia 25, no. 3 (2004): 30. http://dx.doi.org/10.1071/ma04330.

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The approach to quality assurance and control in the food industry has changed, especially with the widespread implementation of preventative, process-oriented food safety plans grounded in Hazard Analysis Critical Control Point (HACCP) and risk assessment principles. However, microbiological analysis of foods remains critical to the management of quality and safety of food products, particularly with respect to the detection of pathogens. The time to complete tests has decreased significantly but, the required sensitivity of the test, the physiological state of the target analyte, the food matrix and associated non-target microflora, all constrain further acceleration of testing and limit the potential for achieving real-time testing of foods, particularly when testing for pathogens such as Salmonella. While real time testing may be the ultimate goal, is it food microbiology?s Holy Grail?

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Fabis-Domagala, Joanna, Mariusz Domagala, and Hassan Momeni. "A Matrix FMEA Analysis of Variable Delivery Vane Pumps." Energies 14, no. 6 (March 21, 2021): 1741. http://dx.doi.org/10.3390/en14061741.

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Hydraulic systems are widely used in the aeronautic, machinery, and energy industries. The functions that these systems perform require high reliability, which can be achieved by examining the causes of possible defects and failures and by taking appropriate preventative measures. One of the most popular methods used to achieve this goal is FMEA (Failure Modes and Effects Analysis), the foundations of which were developed and implemented in the early 1950s. It was systematized in the following years and practically implemented. It has also been standardized and implemented as one of the methods of the International Organization for Standardization (ISO) 9000 series standards on quality assurance and management. Apart from wide application, FMEA has a number of weaknesses, which undoubtedly include risk analysis based on the RPN (Risk Priority Number), which is evaluated as a product of severity, occurrence, and detection. In recent years, the risk analysis has been very often replaced by fuzzy logic. This study proposes the use of matrix analysis and statistical methods for performing simplified RCA (Root Cause Analysis) and for classification potential failures for a variable delivery vane pump. The presented methodology is an extension of matrix FMEA and allows for prioritizing potential failures and their causes in relation to functions performed by pump components, the end effects, and the defined symptoms of failure of the vane pump.

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Rohman, Rohman, Nilna Milhatan Nasihah, and Anas Tri Ridlo Dina Yuliana. "PENJAMINAN MUTU PENDIDIKAN DI MADRASAH DENGAN METODE QUALITY FUNCTION DEPLOYMENT." INSANIA : Jurnal Pemikiran Alternatif Kependidikan 23, no. 2 (February 28, 2019): 292–313. http://dx.doi.org/10.24090/insania.v23i2.2304.

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Abstract: This mini research describes the concept of education quality assurance in madrasa and Quality Function Deployment method in viewing assessment, needs, and expectation of students in MAN Yogyakarta 1 referring to eight National Education Standards. Research method uses quantitative approach, that is by calculating data assessment, needs, and expectation of students based on House of Quality matrix and calculating results of students’ statistical appraisal toward eight education standards by using software application SPSS version 22 in discerning students’ satisfaction toward education process are being run in madrasa. The results show that assessment aspects, needs, and expectation of students based on calculation of House of Quality matrix are the desire to obtain the worship stuff facility in the form of mukena and its place in the mosque, the availability of fan or air conditioner in each class, refinement and addition of sports field, equipments in the laboratory in the form of a computer. Whereas for education standards of content and process in madrasa, majority of students expect learning methods can be further developed with more interesting methods that are not boring for students. In addition, the calculation results through SPSS show the total number of students who become respondents as many as 57 students. Of the total, 39 students gave good or high appraisal toward education process with the percentage of 68,4%, and the rest 18 students gave less good or low rating with the percentage of 31,6%. Based on class, class XII grade with the number of 33 respondents, 23 of them gave good appraisal of 69,7% and the remaining 10 students gave poor appraisal of 30,3%. While class XI grade with the number of 24 respondents, 16 of them gave good appraisal of 66,7%, and the remaining 8 students gave less good or low appraisal of 33,3%. Keywords: Penjaminan Mutu Pendidikan, Metode Quality Function Deployment.

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Johnson, Ian, M. Shahidul Islam, B. Hyle Park, and Hui Nan Liu. "Investigation of Biodegradable Composite Coated Magnesium Alloy Using Optical Coherence Tomography." Advanced Materials Research 922 (May 2014): 292–97. http://dx.doi.org/10.4028/www.scientific.net/amr.922.292.

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Optical coherence tomography (OCT) was used to characterize poly (lactic-co-glycolic acid) (PLGA) and nanophase hydroxyapatite (nHA) / PLGA coatings on magnesium (Mg) substrates before and after immersion in revised simulated body fluid (rSBF) under standard cell culture conditions. The OCT images clearly showed: the surface of the coatings, the metallic surface underneath the coatings, the presence of a dispersed phase within the polymer matrix, and defects and structural changes to the coatings. This study demonstrated the potential utility of OCT for performing quality assurance tests and for tracking the physical effects of degradation upon biomedical implants due to its ability to rapidly render easily interpreted images of sub-surface structure in a non-destructive manner.

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Pangaribuan, Lisda Juliana, Liber Tommy Hutabarat, and Tiara Sylvia. "Analysis of Cadets Satisfaction to Medan Aviation Polytechnic Service Using Quality Function Deployment (QFD) Method." SinkrOn 4, no. 2 (April 10, 2020): 141. http://dx.doi.org/10.33395/sinkron.v4i2.10536.

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Education is an important factor in the development of science and the technology. Quality of service is an important element in the institution of education for the quality service of education that will produce high-quality graduates as well. The importance of service quality makes it a part of the Higher Education Quality Standards. Cadets Satisfaction to services is a benchmark to find out the quality of service at Medan Aviation Polytechnic. This research aims to determine the level of Cadets satisfaction to Medan Aviation Polytechnic service towards learning management standard services and standards for infrastructure facilities. The results of the study will be used as references in developing quality standards of Medan Aviation Polytechnic. The method used was Quality Function Deployment (QFD) method, with a total sample of 44 people. Analysis of the data is done with test validity, reliability, planning matrices and matrix House of Quality (HOQ). Analysis results shows the level of cadets satisfaction highest is the dimension Realibility to value the satisfaction of 4.01 followed by the dimensions of Assurance with the value of the satisfaction of 3.98, then the dimension Empaty to value the satisfaction of 3.97 and then at Responsivness dimension with satisfaction value 3.95 and the last is Tangibility dimension with satisfaction value 3.92.

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Rohmat, Rohmat. "MODEL MANAJEMEN MUTU MADRASAH KAJIAN DI MIN & MI MA’RIF PAGERAJI PURWOKERTO." Jurnal Penelitian Agama 19, no. 1 (April 7, 2018): 74–105. http://dx.doi.org/10.24090/jpa.v19i1.2018.pp74-105.

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Abstract: The quality of madrasah education needs to get serious attention both from process aspect and its result. The quality of madrasah education is also influenced by the family and community environment. This brings with it the need for a review and mapping of the quality management model of education in Madrasah Ibtidaiyah. The Madrasah Ibtidaiyah of Purwokerto and MI Ma'arif Pageraji Purwokerto were chosen to be the subject of this study with the consideration that the school has a good quality management system. This study aims to find the typology of quality management education in MI that is effective so that it can be replicated. Based on the findings of the data, it can be concluded as follows: (1) Quality planning conducted in MIN and MI Ma’arif pageraji Purwokerto through (a) improvement of teacher competence, through OJT activity (on the job trainning), (b) teacher. (c) Development of natural competence matrix. (d) Parent and community cooperation in establishing some madrasah programs. (2) Quality control system conducted in MIN and MI Ma’arif pageraji Purwokerto done through supervision activities. (3) Quality assurance conducted in MIN and MI Ma’arif pageraji Purwokerto done internally by madrasah and audited through accreditation activities run by the accreditation bodies of madrasah or other institutions externally. Keywords: Management model, quality of madrasah.

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Zhang, Jun, Ziting Fan, Xile Zhang, Ruijie Yang, and Junhai Wen. "Development of an Electronic Portal Imaging Device Dosimetry Method." Diagnostics 11, no. 9 (September 9, 2021): 1654. http://dx.doi.org/10.3390/diagnostics11091654.

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Support arm backscatter and off-axis effects of an electronic portal imaging device (EPID) are challenging for radiotherapy quality assurance. Aiming at the issue, we proposed a simple yet effective method with correction matrices to rectify backscatter and off-axis responses for EPID images. First, we measured the square fields with ionization chamber array (ICA) and EPID simultaneously. Second, we calculated the dose-to-pixel value ratio and used it as the correction matrix of the corresponding field. Third, the correction value of the large field was replaced with that of the same point in the small field to generate a correction matrix suitable for different EPID images. Finally, we rectified the EPID image with the correction matrix, and then the processed EPID images were converted into the absolute dose. The calculated dose was compared with the measured dose via ICA. The gamma pass rates of 3%/3 mm and 2%/2 mm (5% threshold) were 99.6% ± 0.94% and 95.48% ± 1.03%, and the average gamma values were 0.28 ± 0.04 and 0.42 ± 0.05, respectively. Experimental results verified our method accurately corrected EPID images and converted pixel values into absolute dose values such that EPID was an efficient radiotherapy dosimetry tool.

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Journal articles on the topic 'Quality Assurance Matrix'

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