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نتیجه جستجو - Complex adaptive system

تعداد مقالات یافته شده: 10
ردیف عنوان نوع
1 Developing a coevolutionary account of innovation ecosystems
توسعه یک حساب همزمان از اکوسیستم های نوآوری-2021
Whilst research in innovation ecosystems has focused on the connectivity, interdependence, and coevolution of actors, technologies, and institutions, there has been a gap in the study of these relationships between actors, with little explanation given on how mutually interdependent parties adapt. In this paper, we draw further on the ecological metaphor to present a view of innovation ecosystems as complex adaptive systems, where patterns of change emerge from microlevel coevolutionary interactions between actors. Drawing on this view, we explore related implications for our understanding of ecosystem boundaries, coevolutionary rules of interaction, and how ecosystems are energized through innovation. Specifically, we contribute to the literature by developing a novel account of innovation ecosystems where actors are bound together through changing modes of coevolution. Drawing on this account, we explore key theoretical and practical implications for our understanding of ecosystem actors, rules of interaction, and the wider innovation ecosystem. We conclude that innovation both maintains and drives change within the innovation ecosystem, by altering the microlevel rules of interaction and coevolutionary relationships between actors.
keywords: تفوق | سیستم انطباق پیچیده | مرزها | اکوسیستم نوآوری | قوانین تعامل | میکروفوندیشن ها | Coevolution | Complex adaptive system | Boundaries | Innovation ecosystem | Rules of interaction | Microfoundations
مقاله انگلیسی
2 A Machine Vision Based Automated Quality Control System for Product Dimensional Analysis
سیستم کنترل کیفیت خودکار مبتنی بر بینایی ماشین برای تجزیه و تحلیل ابعاد محصول-2021
Quality control (QC) in manufacturing processes is critical to ensuring consumers receive products with proper functionality and reliability. Faulty products can lead to additional costs for the manufacturer and damage trust in a brand. A growing trend in QC is the use of machine vision (MV) systems because of their noncontact inspection, high repeatability, and relatively low cost. This paper presents a robust MV system developed to perform comparative dimensional inspection on diversely shaped samples, including additive manufacturing products. The algorithm used performs dimensional inspection on a base product considered to have acceptable dimensions. The perimeter, area, rectangularity, and circularity of the base product are determined using blob analysis on a calibrated camera. These parameters are then used as the standard with which to judge additional products. Each product following is similarly inspected and compared to the base product parameters. A likeness score is calculated for each product, which provides a single value tracking all parameter differences. Finally, the likeness score is considered on whether it is within a threshold, and the product is considered to be acceptable or defective. The proposed MV system has achieved satisfactory results, as discussed in the results section, that would allow it to serve as a dependable and accurate QC inspection system in industrial settings.© 2021 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0)Peer-review under responsibility of the scientific committee of the Complex Adaptive Systems Conference, June 2021.
Keywords: Machine Vision | Quality Control | Dimensional Analysis | Digital Quality | Rectangularity | Circularity | Production | Manufacturing
مقاله انگلیسی
3 Investigating the effect of horizontal coopetition on supply chain resilience in complex and turbulent environments
بررسی تأثیر همکاری افقی بر انعطاف پذیری زنجیره تأمین در محیطهای پیچیده و آشفته-2021
Today supply chain operations are continuously threatened by frequent and unpredictable disruptions. To survive in such complex and fast-changing environments, firms need to develop resilient strategies for their supply chains. To this regard, previous studies in literature have shown that cooperative relationships play a relevant role. However, there are evidence that firms more often prefer a coopetition strategy, where both cooperative and competitive relationships are simultaneously adopted to manage supply chain relationships. Despite the relevance of this topic, how coopetitive relationships influence resilience has been less investigated so far. In this paper, we use a complex adaptive system approach to conceptualize horizontal coopetition in supply chains and develop a novel agent-based model to simulate its effect on supply chain resilient performance in different environmental conditions, characterized by increasing level of complexity and frequency of disruptions. Results show that coopetition can be beneficial for supply chain resilience and that environmental complexity (turbulence) positively (negatively) moderates this relation. Theoretical contributions and managerial implications are finally discussed.
Keywords: Coopetition | Horizontal coopetition | Supply chains | Resilience | Agent-based model
مقاله انگلیسی
4 ظهور اکوسیستم «فین‌تک»
سال انتشار: 2019 - تعداد صفحات فایل pdf انگلیسی: 33 - تعداد صفحات فایل doc فارسی: 43
چکیده اکوسیستم‌های فین‌تک (Fintech - FE) با شبکه‌ای پیچیده از عوامل ناهمگن، غیر خطی، پویا توصیف می‌شوند که با تعامل با یکدیگر، مجموعه گسترده‌ای از محصولات و خدمات مالی را به مصرف‌کنندگان نهایی ارائه می‌دهند. با ظهور بی‌شماری از فناوری‌های مکمل، با ظهور بازیگران جدید و شکل‌گیری ارتباطات جدید، پیچیدگی اکوسیستم‌های فین‌تک به طور تصاعدی افزایش می‌یابد. با وجود توجه گسترده‌ای که اکوسیستم‌های فین‌تک از جامعه علمی و فعالیت‌ها جلب کرده‌اند، در مورد چگونگی ظهور چنین اکوسیستم‌هایی اطلاعات کمی در دست است. برای پرداختن به این شکاف دانشی که به وجود آمده است، این مقاله تحقیقاتی از نظریه سیستم‌های انطباقی پیچیده (complex adaptive systems - CAS) برای بررسی ظهور اکوسیستمی خود-پایدار جهانی استفاده می‌کند: درۀ فین‌تک در ویزاگ هند. با انجام این کار، یافته‌های ما بینش‌هایی در مورد ظهور فعالیت بهبود عملکرد (Functional Enhancement - FE) ارائه می‌دهد که در حال تغییر دادن دورنمای مالی در سطح جهانی است، و ممکن است برای متخصصانی که به دنبال تأثیرگذاری بر تغییرات کلی فرهنگی و دنبال رویکرد «compliant by design» هستند، مفید باشد. کلمه‌های کلیدی: ظهور اکوسیستم | فین‌تک | سیستم‌های انطباقی پیچیده | پژوهش موردی | هند
مقاله ترجمه شده
5 Forest landscapes as social-ecological systems and implications for management
مناظر جنگل به عنوان سیستم های اجتماعی-زیست محیطی و پیامدهای مدیریت-2018
Many of the most pressing threats to forests result from complex interactions between multiple stressors and require management on large spatial and temporal scales. For this reason, many ecosystem managers have begun to recognize the need to consider the broader context of decisions, and how outcomes of past, present and future decisions in one location may interact with outcomes of such decisions in other locations nearby. The landscape has been put forth as an appropriate unit for such holistic approaches to management. However, as there are differing definitions of landscapes, it can be difficult to develop frameworks for management. Moreover, many definitions do not fully account for the many ways social and ecological conditions and processes interact within landscapes. Building on emerging theoretical and empirical literature, I offer a perspective on temperate forest landscapes as social-ecological systems: nested sets of coevolving social and natural subsystems connected through feedbacks, time lags, and cross-scale interactions. This interdisciplinary framing emphasizes the bio geophysical and socio-cultural influences on landscapes and the need to consider these influences – and the interactions among them – in management. I discuss challenges to managing forest landscapes as social-ecolo gical systems that stem from mismatches in the temporal and spatial scales on which ecological and social systems typically function, as well as opportunities for policies, formal organizations, and governance networks.
Keywords: Social-ecological systems ، Complex adaptive systems ، Forests ، Landscapes ، Scale mismatch ، Governance networks
مقاله انگلیسی
6 Comparing HROs and RE in the light of safety management systems
مقایسه HROs و RE با توجه به سیستم های مدیریت ایمنی-2018
The High Reliability Organizations (HROs) and Resilience Engineering (RE) movements represent similar schools of thought, and may seem difficult to differentiate on clear grounds. This paper uses a generic taxonomy of safety management modes, developed during a field study conducted within the French Air Navigation Service Provider (ANSP), to facilitate their comparison. The field study was an opportunity to contrast the classical Safety Management System (SMS) regulatory approach with the HRO and RE frameworks. It also led to the development of a generic taxonomy of safety management modes, which is used for comparing the HRO and RE frameworks from a safety management perspective. While HRO and RE share a common theoretical inspiration (complex adaptive systems), a common philosophy of safety management, and reach similar conclusions in terms of “positive” safety management features, they can still be differentiated by their position in the grid. HROs are close to one of the four safety management modes described in the taxonomy, while resilience is a component of safety management that is present, at different levels, across all the four safety management modes.
Keywords: Safety strategy ، Safety management modes ، Resilience engineering ، High reliability organizations
مقاله انگلیسی
7 A Practical Approach to Modeling Complex Adaptive Flows in Psychology and Social Science
یک رویکرد عملی برای مدل سازی جریانهای تطبیقی پیچیده در روانشناسی و علوم اجتماعی-2017
Five moments in the formation and functioning of complex adaptive systems are: (1) emergent regularities and patterns in the flow of matter, energy, and/or information; (2) condensed schematic representations of these regularities enabling their identification; (3) reproductively interchangeable variants of these representations serving as templates for new instances of the pattern; (4) successful reproduction facilitated by the accuracy and reliability of the representations’ predictions of data flow regularities; and (5) informational feedback that adaptively modifies and reorganizes representations to incorporate new variations in the data flow, cycling back the first moment. These five moments are instantiated via stochastic models providing practical approaches to representing and managing complex adaptive psychological and social systems in education, health care, human resource management, etc. Local independence, unidimensionality, and statistical sufficiency criteria function as means of identifying, evaluating, and deploying conceptual and social forms of life acting as evolving agents in defined ecological niches. Bringing these agents into play systematically requires embodying them in technologies instrumental to making them readily recognizable and sharable across ecosystem niches. Modeling research and practice promoting sustainable and self-organizing ecosystems of this kind set the stage for redefining profit in terms of authentic wealth and value for life.
Keywords: complex adaptive systems | psychology | stochastic models | Rasch models | self-organizing forms of life
مقاله انگلیسی
8 A conceptual framework for the analysis of the effect of institutions on biofuel supply chains
چارچوب مفهومی برای تجزیه و تحلیل اثر نهاد ها در زنجیره تامین سوخت زیستی-2017
The economic performance of biofuels supply chains depends on the interaction of technical character istics as technological pathways and logistics, and social structures as actor behavior, their interactions and institutions. Traditional approaches focus on the technical problems only. Little attention has been paid to the institutional analysis of biofuel supply chains. This paper aims to extend the analysis of the effect of institutions on the emergence of biofuel supply chains by developing a conceptual framework that combines elements of complex adaptive systems, (neo) institutional economics and socio technical systems theory. These elements were formalized into an agent-based model. The proposed method is illustrated by a case study on a biodiesel supply chain in Germany. It was found that the pat terns in production capacity result from investors basing their decisions on optimistic perceptions of the market development that increase with a favorable institutional framework. Conversely, patterns in bio diesel production cannot be completely explained by this mechanism. The proposed framework assisted the model conceptualization phase and allowed the incorporation of social structures into the agent based model. This approach could be developed further to provide insights on the effect of different future deployment strategies on bioenergy systems emergence and development.
Keywords: Complex adaptive systems | (Neo) institutional economics | Socio-technical systems |Agent-based modeling |Biofuel supply chains
مقاله انگلیسی
9 زنجیره های تامین خدمات حرفه ایی
سال انتشار: 2016 - تعداد صفحات فایل pdf انگلیسی: 10 - تعداد صفحات فایل doc فارسی: 39
مبادلات خدمات حرفه ایی (PS) بندرت محدود به زمان و مکان میشوند . این مطالعه مفهومی توالیهای متناوب و ممتدِ PS را که شامل انواع مختلف تخصص ها و متخصصین حرفه ایی میشود را مورد بحث و بررسی قرار میدهد . این مطالعه در چارچوب مفاهیم دوگانه ی خدمات طراحی شده ، و نشان دهنده ی چشم انداز و تجربه مشتری و زنجیره های تامین PS است ، که توالیهای سازمان یافته ی حرفه ایی ، ادارای و خدمات فنی بطور صریح بنحوی طراحی شده اند که نتایج خاصی ارایه میکنند مانند تولید یک محصول مالی ، طراحی خانه و یا جایگزین کردن با دیگر موارد . هر نمونه ، در هر دو بخشِ بهداشتی و اجتماعی ، واقعی هستند و روی داده های قابل دسترس ترسیم میشوند و غنی بودن اطلاعات انعکاسی از این حقیقت است که هر یک از آنها میتوانند نمونه ایی از یک شکست و یا فاجعه باشند (آلتای و رامیرز ،2010) . این مفهوم سازی دوگانه منجر به دستیابی به دیدگاه جامع میشود که از چارچوبِ سیستم پیچیده سازگارمورد استفاده میکند (دولی و وان دی ون ،1999، لوین 1998) .نتیجه گیری مبحث با استفاده از سیستمهای خدماتی برای یک برنامه تحقیقاتی ارایه میشود .
واژگان کلیدی : خدمات حرفه ایی | زنجیره تامین | پیچیدگی علم | سیستمهای سازگار | واسطه بین حرفه ایی | تجربه خدمت | بخش خدمات | شکست فاجعه امیز .
مقاله ترجمه شده
10 چهار مفهوم انعطاف پذیری و پیامدهای آن برای آینده مهندسی انعطاف پذیری
سال انتشار: 2015 - تعداد صفحات فایل pdf انگلیسی: 5 - تعداد صفحات فایل doc فارسی: 21
مفهوم انعطاف پذیری سیستم بسیار مهم و محبوب است در واقع در چند دهه گذشته به محبوبیت بسیار بالایی رسیده است. تعریف معانی و مبانی تکنیکی مفهوم انعطاف پذیری بسیار مهم است. پیشنهاداتی برای تعریف انعطاف پذیری نیز در حال رشد هستند. این مقاله رویکردهای مختلف تکنیکی را سازماندهی کرده است تا به این سوال پاسخ دهد که انعطاف پذیری چیست و چگونه می توان آن را در سیستم های تطبیقی پیچیده مهندسی کرد. این مقاله کاربردهای مختلف واژه «انعطاف پذیری» را با چهار مفهوم پایه ارائه می دهد: 1)انعطاف پذیری به عنوان بازگشت از شرایط مزمن و رسیدن به حالت تعادل و 2)انعطاف پذیری به عنوان مترادف قدرت، 3)انعطاف پذیری متضاد شکنندگی برای مثال زمانی که مرزها به چالش کشیده می شوند، انعطاف پذیری و توسعه شدید و 4)انعطاف پذیری به عنوان معماری شبکه ای که می تواند قابلیت انطباق با شگفتی های آینده را با تکامل شرایط حفظ کند.
کلمات کلیدی: مهندسی انعطاف پذیری | انعطاف پذیری | پایداری | کنترل انعطاف پذیر | کنترل قوی | پیچیدگی | سیستم های تطبیقی پیچیده | سیستم های اجتماعی فنی
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