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Hoshin Kanri and A3: a proposal for integrating variability into the policy deployment process

TQM Journal 2019年第2期31卷 118-135页

作者： Tortorella, Guilherme Cauchick-Miguel, Paulo A. Gaiardelli, Paolo Federal University of Santa Catarina Florianopolis Brazil Department of Production and Systems Engineering Federal University of Santa Catarina Florianopolis Brazil Post-Graduate Program of Production Engineering Universidade de Sao Paulo Sao Paulo Brazil Universita degli Studi di Bergamo Bergamo Italy

Purpose: The purpose of this paper is to propose a methodology to support the Hoshin Kanri (HK) process taking into account the variance of senior managers’ perspective regarding the relationships among objectives, key performance indicators and continuous improvement (CI) projects. Design/methodology/approach: A four-step methodology incorporates the A3 report into the HK, whose deployment was weighted by the variability among managers’ perception about the importance of each decision. This methodology was applied in a market-leader Mexican auto parts manufacturing company that is undergoing a Lean Manufacturing (LM) implementation. Findings: The results indicate that the proposed methodology provides an easier approach to consolidate different perspectives and weight the importance of CI projects. Moreover, it minimizes the possibility of managerial conflicts or the influence of a determined senior manager on others’ opinions during the deployment and prioritization. Practical implications: This work may be of great interest to managers, consultants and professionals who deal with the implementation of LM and wish to prioritize the importance of CI projects within the perspective of HK. Originality/value: HK provides a systematic approach to integrate strategic management with daily routine management through an adequate deployment of organizational policies to all levels. However, companies usually struggle with several issues such as the style of senior managers and consensus establishment among different opinions, which emphasizes the relevance of the proposed methodology in this study. © 2018, Emerald Publishing Limited.

关键词： Managers

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Uncovering diffusive states of the yeast proton pump, Pma1, and how labeling method can change diffusive behavior

arXiv

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arXiv 2022年

作者： Bailey, Mary Lou P. Pratt, Susan E. Zhang, Yongdeng Hinrichsen, Michael Bewersdorf, Joerg Regan, Lynne J. Mochrie, Simon G.J. Integrated Graduate Program in Physical and Engineering Biology Yale University New HavenCT06511 United States Department of Applied Physics Yale University New HavenCT06511 United States Department of Physics Yale University New HavenCT06511 United States Department of Cell Biology Yale University New HavenCT06511 United States Department of Biomedical Engineering Yale University New HavenCT06511 United States Institute of Quantitative Biology Biochemistry and Biotechnology Center for Synthetic and Systems Biology School of Biological Sciences University of Edinburgh Edinburgh06511 United Kingdom

We present and analyze video-microscopy-based single-particle-tracking measurements of the budding yeast (Saccharomyces cerevisiae) membrane protein, Pma1, fluorescently-labeled either by direct fusion to the switchable fluorescent protein, mEos3.2, or by a novel, light-touch, labeling scheme, in which a 5 amino acid tag is directly fused to the C-terminus of Pma1, which then binds mEos3.2. The diffusivity distributions of these two populations of single particle tracks differ significantly, demonstrating that labeling method can be an important determinant of diffusive behavior. We also applied perturbation expectation maximization (pEMv2) [Physical Review E 94, 052412 (2016)], which sorts trajectories into the statistically-optimum number of diffusive states. For both TRAP-labeled Pma1 and Pma1-mEos3.2, pEMv2 sorts the tracks into two diffusive states: an essentially immobile state and a more mobile state. However, the mobile fraction of Pma1-mEos3.2 tracks is much smaller (∼ 0.1) than the mobile fraction of TRAP-labeled Pma1 tracks (∼ 0.5). In addition, the diffusivity of Pma1-mEos3.2's mobile state is several times smaller than the diffusivity of TRAP-labeled Pma1's mobile state. To critically assess pEMv2's performance, we compare the diffusivity and covariance distributions of the experimental pEMv2-sorted populations to corresponding theoretical distributions, assuming that Pma1 displacements realize a Gaussian random process. The experiment-theory comparisons for both the TRAP-labeled Pma1 and Pma1-mEos3.2 reveal good agreement, bolstering the pEMv2 approach. © 2022, CC BY.

关键词： Diffusion

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Performance evaluation of faults in a photovoltaic array based on V-I and V-P characteristic curve 12

Performance evaluation of faults in a photovoltaic array bas...

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12th International Conference on Measuring Technology and Mechatronics Automation, ICMTMA 2020

作者： Lodhi, Ehtisham Lina, Wang Pu, Yang Javed, M. Yaqoob Lodhi, Zeeshan Zhijie, Jiao Javed, Usman School of Automation Science and Electrical Engineering Beihang University Beijing100191 China State Key Laboratory for Management and Control of Complex Systems Institute of Automation Chinese Academy of Sciences Beijing 100190 China Department of Electrical and Computer Engineering COMSATS University Islamabad Lahore54000 Pakistan Department of Electrical and Computer Engineering COMSATS University Islamabad Abbottabad22060 Pakistan Guo China-US Photonics Lab Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences Changchun130033 China

ISBN: (纸本)9781728170817

The prediction and forecasting of faults occurring in photovoltaic (PV) system is one of the important aspect to escalate the reliability, output power generation, proficiency, lifetime and effectiveness of overall system. In this article, the behavior of PV array is studied under various faulty circumstances and new approach has offered for the better performance assessment of PV array. This approach is established on the analysis of peculiarities displayed by voltage power (V-P) and voltage-current (V-I) characteristics curves of PV array under different faulty conditions. The proposed technique can be used to identify and classify the five common faults in PV system. These progressive faults (includes open circuit, line-to-line, partial shading, degradation and bridging faults) have been occurred at the basic components of PV cell and at the connection point between PV modules. The characteristic curves under normal and faulty conditions have been compared by utilizing Matlab/Simulink environment. Hence, the suggested method can be utilized to determine the important fact about the health PV array. © 2020 IEEE.

关键词： Solar panels

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Crevice Corrosion Degrades Metaphyseal Sleeves Following Total Knee Arthroplasty: A Retrieval Study

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The Journal of arthroplasty 2025年

作者： Shabnam Aslani Michael A Kurtz Christopher E Pelt Joshua P Rainey Michael J Archibeck Jeremy M Gililland William A Sutton James A Smith Jeremy L Gilbert Steven M Kurtz Implant Research Core School of Biomedical Engineering Science and Health Systems Drexel University Philadelphia PA USA. Implant Research Core School of Biomedical Engineering Science and Health Systems Drexel University Philadelphia PA USA. Electronic address: michael.kurtz@drexel.edu. Department of Orthopaedic Surgery University of Utah Salt Lake City UT USA. Clemson-MUSC Bioengineering Program Clemson University Charleston SC USA.

BACKGROUND:Surgeons use metaphyseal sleeves in revision total knee arthroplasty (TKA) to compensate for bone loss and improve stability. However, a clinical case series documented corrosion on these devices and associated the subsequent metal release with adverse local tissue reactions. In this study, we investigated corrosion at the mixed-alloy, metaphyseal sleeve-implant interface. We asked: (1) How common is corrosion? (2) Does more damage occur at the femoral cobalt chrome alloy (CoCrMo) taper? (3) What damage modes occur? METHODS:We analyzed 17 femoral and 15 tibial implant-sleeve components following revision surgery. First, corrosion was classified using the Goldberg score and quantified using the axial corrosion (ΔC) on CoCrMo implants. Then, moderately and severely corroded devices were imaged using scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS). Differences in corrosion on CoCrMo tibial and femoral implants were assessed using nonparametric statistics. RESULTS:We observed corrosion on 82% of femoral adapters, 100% of femoral sleeves, 73% of tibial trays, and 86% of tibial sleeves. On CoCrMo femoral adapters, we measured more axial corrosion than on CoCrMo tibial trays (P = 0.04). The predominant damage modes on femoral adapters included pitting, etching, and oxide debris. On titanium alloy femoral sleeves, we documented a burnishing effect, revealing the underlying microstructure. CONCLUSION:Our findings indicate that mechanically assisted crevice corrosion (MACC) promotes metaphyseal implant degradation. Should surgeons encounter patients who have metaphyseal sleeves and unexplained pain or suspected metal release, consider measuring metal concentrations after rigorous rule out of competing diagnoses.

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Integrated carbon and nitrogen management for cost-effective environmental policies in China

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Science (New York, N.Y.) 2025年第6751期388卷 1098-1103页

作者： Xin Xu Xiuming Zhang Yiyang Zou Tianrun Chen Jingfang Zhan Luxi Cheng Wilfried Winiwarter Shaohui Zhang Peter M Vitousek Wim de Vries Baojing Gu State Key Laboratory of Soil Pollution Control and Safety Zhejiang University Hangzhou China. College of Environmental and Resource Sciences Zhejiang University Hangzhou China. International Institute for Applied Systems Analysis Laxenburg Austria. Ministry of Education Key Laboratory of Environment Remediation and Ecological Health Zhejiang University Hangzhou China. College of Computer Science and Technology Zhejiang University Hangzhou China. Policy Simulation Laboratory Zhejiang University Hangzhou China. Institute of Environmental Engineering University of Zielona Góra Zielona Góra Poland. School of Economics and Management Beihang University Beijing China. Department of Earth System Science Stanford University Stanford CA USA. Wageningen University and Research Earth Systems and Global Change Group Wageningen Netherlands. Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment Zhejiang University Hangzhou China.

Carbon and nitrogen are central elements in global biogeochemical cycles. To effectively manage carbon and nitrogen in China, we developed a comprehensive model for quantifying their fluxes, investigating their interplay across 16 human and natural subsystems. Between 1980 and 2020, nitrogen losses in China increased 2.3-fold and carbon emissions surged 6.5-fold. Integrated carbon and nitrogen management holds the potential for a 74% reduction in nitrogen losses to air and water and a 91% decrease in carbon emissions to the atmosphere by 2060. Compared with separate control of carbon or nitrogen, integrated management delivers an additional reduction of 1.8 million tons of nitrogen and 26.5 million tons of carbon by 2060, bringing out a 37% decrease in unit abatement cost and a net societal benefit of 1384 billion USD.

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A review of solar photovoltaic technologies: developments, challenges, and future perspectives

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Energy Conversion and management: X 2025年 27卷

作者： Al-Ali, Saeed Olabi, Abdul Ghani Mahmoud, Montaser Sustainable Energy & Power Systems Research Centre RISE University of Sharjah P.O. Box 27272 Sharjah United Arab Emirates Department of Industrial and Management Engineering University of Sharjah P.O. Box 27272 Sharjah United Arab Emirates Mechanical Engineering and Design Aston University School of Engineering and Applied Science Aston Triangle BirminghamB4 7ET United Kingdom

Solar photovoltaic (PV) technology has emerged as a key renewable energy solution, yet its widespread adoption faces several technical and economic challenges. This review examines the evolution, current advancements, and future prospects of PV systems, highlighting the development of various photovoltaic cell technologies, including crystalline silicon, amorphous silicon, cadmium telluride, perovskite, and organic solar cells. The study explores the operational principles of stand-alone and grid-tied PV systems and their economic significance. A historical perspective is provided, tracing PV technology from the discovery of the photovoltaic effect in 1839 to its latest innovations, such as high-efficiency cells, bifacial panels, solar shingles, transparent solar cells, and PV-driven hydrogen production. The methodology involves an extensive review of recent advancements, industry trends, and existing literature to identify key challenges in PV deployment, including efficiency losses, high initial costs, and market integration barriers. Findings indicate that while significant progress has been made, further research and policy support are needed to enhance technology efficiency, reduce costs, and ensure seamless integration into energy markets. © 2025 The Author(s)

关键词： Amorphous silicon

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Complexity measurement in two supply chains with different competitive priorities

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IFAC-PapersOnLine 2019年第13期52卷 1699-1704页

作者： Sellitto, Miguel A. Lolli, Francesco Rimini, Bianca Balugani, Elia Production and Systems Engineering Graduate Program Universidade do Vale do Rio dos Sinos São LeopoldoRS 93022750 Brazil Department of Sciences and Methods for Engineering University of Modena and Reggio Emilia Via Amendola 2 Padiglione Morselli Reggio Emilia42122 Italy

Complexity measurement based on the Shannon information entropy is widely used to evaluate variety and uncertainty in supply chains. However, how to use a complexity measurement to support control actions is still an open issue. This article presents a method to calculate the relative complexity, i.e., the relationship between the current and the maximum possible complexity in a Supply Chain. The method relies on unexpected information requirements to mitigate uncertainty. The article studies two real-world Supply Chains of the footwear industry, one competing by cost and quality, the other by flexibility, dependability, and innovation. The second is twice as complex as the first, showing that competitive priorities influence the complexity of the system and that lower complexity does not ensure competitivity. © 2019, IFAC (International Federation of Automatic Control) Hosting by Elsevier Ltd. All rights reserved.

关键词： Uncertainty analysis Adaptive systems Reliability Shoe manufacture Supply chains Complex adaptive systems Complexity Dependability Flexibility Footwear industry Uncertainty Variety

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Decentralized stochastic gradient langevin dynamics and hamiltonian Monte Carlo

arXiv

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arXiv 2020年

作者： Gürbüzbalaban, Mert Gao, Xuefeng Hu, Yuanhan Zhu, Lingjiong Department of Management Science and Information Systems Rutgers Business School PiscatawayNJ08854 United States Department of Systems Engineering and Engineering Management Chinese University of Hong Kong N.T. Shatin Hong Kong Department of Mathematics Florida State University TallahasseeFL32306 United States

Stochastic gradient Langevin dynamics (SGLD) and stochastic gradient Hamiltonian Monte Carlo (SGHMC) are two popular Markov Chain Monte Carlo (MCMC) algorithms for Bayesian inference that can scale to large datasets, allowing to sample from the posterior distribution of the parameters of a statistical model given the input data and the prior distribution over the model parameters. However, these algorithms do not apply to the decentralized learning setting, when a network of agents are working collaboratively to learn the parameters of a statistical model without sharing their individual data due to privacy reasons or communication constraints. We study two algorithms: Decentralized SGLD (DE-SGLD) and Decentralized SGHMC (DE-SGHMC) which are adaptations of SGLD and SGHMC methods that allow scaleable Bayesian inference in the decentralized setting for large datasets. We show that when the posterior distribution is strongly log-concave and smooth, the iterates of these algorithms converge linearly to a neighborhood of the target distribution in the 2-Wasserstein distance if their parameters are selected appropriately. We illustrate the efficiency of our algorithms on decentralized Bayesian linear regression and Bayesian logistic regression *** Codes Primary: 68W15, 62F15, 65C05, 62D05, 62L20, secondary: 60J20, 90C15 Copyright © 2020, The Authors. All rights reserved.

关键词： Monte Carlo methods

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Streamline patients flow through lean mobile application in emergency department

Streamline patients flow through lean mobile application in ...

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2019 Institute of Industrial and systems Engineers Annual Conference and Expo, IISE 2019

作者： Muflih, Ali Al Elshennawy, Ahmad College of Engineering Dept. of Industrial Engineering King Khalid University Abha Asser61431 Saudi Arabia Department of Industrial Engineering and Management Systems University of Central Florida OrlandoFL32816 United States

ISBN: (纸本)9781713814092

Even with technological advancements in recent times, healthcare organizations, especially emergency departments, still struggle with fulfilling the needs of patients, mainly as the number of patients they receive grows. The need for the application of lean principles is thus emphasized in healthcare organizations. This study focuses on the application of lean principles, in the form of a mobile application and IoT to efficiently reduce the time each it takes different healthcare professionals to attend to patients within the emergency department of healthcare organizations. The multifaceted lean approach of this study aims to evaluate the current patient flow in ED and improve the existing process. The mobile app allows the patient to check in remotely and therefore allows the patient to plan his arrival time and eliminate excessive crowding while the different healthcare professionals have access to the patient’s information. The mobile app will connect the patient with the nurse, lab technicians and care providers streamlining the process of attending to the patient. The outcome of such an application will redesign the way the emergency department works by keeping the workflow, personnel involved, and the procedure followed in emergency departments the same. © 2019 IISE Annual Conference and Expo 2019. All rights reserved.

关键词： Internet of things

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Assessment of Dispatch Scenarios for a Multi-Tower Concentrating Solar Power Plant in a Renewable Energy Community

SSRN

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SSRN 2024年

作者： Rovense, Francesco Pinnarelli, Anna González-Aguilar, José Romero, Manuel Brusco, Giovanni Vizza, Pasquale Menniti, Daniele Sorrentino, Nicola Dufour, Javier ENEA Casaccia Research Centre Via Anguillarese 301 Rome00123 Italy Department of Chemical Energy and Mechanical Technology Rey Juan Carlos University Calle Tulipán Móstoles28933 Spain High Temperature Processes Unit IMDEA Energy Avda Ramón de la Sagra 3 Móstoles28935 Spain Systems Analysis Unit IMDEA Energy Avda Ramón de la Sagra 3 Móstoles28935 Spain Department of Mechanical Energy and Management Engineering University of Calabria Via Pietro Bucci Rende87036 Italy

This work proposes an original methodology for designing and selecting operational scenarios for a Concentrating Solar Tower (CST) plant that provides electricity to a Renewable Energy Community (REC) in Southern Italy. The CST system incorporates a closed-cycle and unfired micro gas turbine and thermal energy storage. The study considered real electric datasets for residential district end-users and electricity prices within the Italian regulatory framework. Dynamic operation of the power plant was simulated, and the Levelized Cost of Electricity (LCOE) was evaluated across fifty-six different system layouts to identify the optimal configuration with the lowest value. Fifteen dispatch scenarios, including a mix of Demand Following, Ancillary Services (tertiary reserve regulation), and simple Energy Sales, were investigated. The best arrangement was identified as a multi-tower system, wherein the number of single-unit CSTs was set to meet the nameplate power required by the REC. The optimum layout consisted of three CST plants, with a total peak power of 1.05 MWe and a storage capacity of 26 MWhth, that exhibited an LCOE of 12.42 c€ kWh-1. The most suitable dispatch scenario for such a plant involved providing Ancillary Services during the evening, which would yield approximately 430 k€ in net profit. © 2024, The Authors. All rights reserved.

关键词： Gas turbines

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