scholarly journals Walking robots for rescue operations: overview and analysis of the existing models

2021 ◽  
pp. 35-73
Author(s):  
Vladlena Andreevna Larkina
Keyword(s):  
Critical Analysis ◽  
Degrees Of Freedom ◽  
Maximum Load ◽  
Relevant Information ◽  
Walking Robots ◽  
Input Energy ◽  
Summary Table ◽  
Advantages And Disadvantages ◽  
The Past ◽  
Depth Analysis

This article explores the walking robots that are used or assist in nondeterministic environment, such as rescue operations. This required carrying out in-depth analysis of the existing models to acquire relevant information on the robots with walking mechanisms in accordance with several criteria: parameters, weight, degrees of freedom, speed of movement, input energy, runtime, maximum load, advantages and disadvantages of the reviewed models. Using the methods of comparative and critical analysis, the author analyzed the available materials for the past 5 years, which allowed accomplishing the set tasks. The results consist in compiling a summary table for largely generalized groups of walking robots and three tables for the models under review, which summarize their advantages and weaknesses. Such data would broaden the knowledge of the researchers dealing with the walking robots, analyze both national and foreign studies on the topic, apply this experience in further work, focus on solution of the problems, and emphasize the uniqueness and relevance of their developments. This article determines the peculiarities of utilization of walking robots specifically in rescue operations; however, the scope of their applicability can be broader. The author also describes the nontraditional locomotors of walking robots, which are widely known in media, video hosting, and other tools of receiving information.

scholarly journals Comparing Concept Drift Detection with Process Mining Software

2020 ◽  
Vol 13 (4) ◽  
pp. 101-125
Author(s):  
Nicolas Jashchenko Omori ◽  
Gabriel Marques Tavares ◽  
Paolo Ceravolo ◽  
Sylvio Barbon Jr
Keyword(s):  
Business Processes ◽  
Process Mining ◽  
Concept Drift ◽  
Relevant Information ◽  
Process Control System ◽  
Process Data ◽  
Advantages And Disadvantages ◽  
Depth Analysis ◽  
Changes Over Time ◽  
Concept Drifts

Organisations have seen a rise in the volume of data corresponding to business processes being recorded. Handling process data is a meaningful way to extract relevant information from business processes with impact on the company's values. Nonetheless, business processes are subject to changes during their executions, adding complexity to their analysis. This paper aims at evaluating currently available process mining tools and software that handle concept drifts, i.e. changes over time of the statistical properties of the events occurring in a process. We provide an in-depth analysis of these tools, comparing their differences, advantages, and disadvantages by testing against a log taken from a Process Control System. Thus, by highlighting the trade-off between the software, the paper gives the stakeholders the best options regarding their case use.

Les héritages chrétiens: quel avenir?

Moreana ◽  
2009 ◽  
Vol 46 (Number 176) (1) ◽  
pp. 175-190
Author(s):  
Bernard Bourdin
Keyword(s):  
European Union ◽  
Human Rights ◽  
Middle Ages ◽  
Critical Analysis ◽  
Religious Affiliation ◽  
The European Union ◽  
Modern Times ◽  
The Past ◽  
Religious Significance ◽  
Politics And Religion

The legacy from Christianity unquestionably lies at the root of Europe, even if not exclusively. It has taken many aspects from the Middle Ages to modern times. If the Christian heritage is diversely understood and accepted within the European Union, the reason is essentially due to its political and religious significance. However, its impact in politics and religion has often been far from negative, if we will consider what secular societies have derived from Christianity: human rights, for example, and a religious affiliation which has been part and parcel of national identity. The Christian legacy has to be acknowledged through a critical analysis which does not deny the truth of the past but should support a European project built around common values.

أوهام القراءة الحداثية المعاصرة: دراسة تحليلية نقدية (Misunderstandings of Modern Contemporary Reading: A Critical Analysis )

2018 ◽  
Vol 15 (3) ◽  
pp. 258-299
Author(s):  
حنان ساري ◽  
محمد أبو الليث الخيرآبادي
Keyword(s):  
Critical Analysis ◽  
Natural Extension ◽  
Modern Times ◽  
The Past ◽  
Religious Issues ◽  
European Experience ◽  
Islamic Thought ◽  
Critical Approaches ◽  
Muslim Scholars

انتشرت لفظة الحداثة في عصرنا الحالي انتشاراً واسعاً، وأخذت مفهومات متعددة، ونحن لا نراها أكثر من أنها امتداد طبيعي للقلق الأوروبي.وسعى التيار الحداثي لتقديم مشاريع تعتمد كلية على مناهج وآليات غربية في دراستها وتعاملها مع القرآن الكريم والسنة، ولعل أهم الذين تقدموا بتلك المشاريع؛ محمد أركون، عبد المجيد الشرفي التونسي، محمد عابد الجابري، حسن حنفي، نصر حامد أبوزيد، الطيب التيزني السوري، محمد شحرور، جمال البنا وغيرهم، وطالبوا بإعادة قراءة القرآن الكريم على ضوء المناهج النقدية الغربية في عملية التقليد الأعمى، ومن ثم نقلوا التجربة الأوروبية بكل آثارها الفوضوية إلى ساحة الفكر الإسلامي. وإن مدعي تجديد الدين من هؤلاء، ليس لهم صلة بالدين أو علومه، بقدر ما تشبعت أفكارهم بمناهج علمانية، فالمراد من جهودهم ليس الدين، وإنما غرس الحداثة بدل الدين، فهي خطَّةٌ تقوم على التَّغيير من داخل البيت الإسلاميِّ من خلال العبث بالنُّصوص الشَّرعيَّة بتحريفها وتفريغها من محتواها الحقيقيِّ، ووضع المحتوى الذي يريدون؛ فهم يَطرحون أفكارَهم وآراءَهم على أنَّها رؤى إسلاميَّة ناشئة عن الاجتهاد في فهم الدِّين. وقد حَمَلَ هذا الاتجاهُ شعار (التَّحديث والعصرنة للإسلام)؛ فهم يريدون منَّا تركَ ما أَجْمَعَتْ عليه الأُمَّةُ من معاني القرآن والسُّنَّة، لفهم جديد مغاير لفهم السَّلَف الصَّالح يكون متناسبًا مع هذا العصر الذي نعيش فيه. الكلمات المفتاحيّة: الحداثة، أوهام، الحداثيون، قراءة معاصرة، العصرنة للإسلام. Abstract In modern times, the word Modernity has spread widely and has become widely understood, and we see it as a natural extension of European concern and confusion. The Modernist Movement strived to present the ideas that rely completely on Western methodologies and approaches in their study and dealing with Qur’an and Sunnah. The most important scholars that have presented these ideas are; Mohammad Arkoun, ‘Abd Al-Majid Sharafi al-Tunisi, Mohammed ‘Abed al-Jabri, Hassan Hanafi, Nasr Hamid Abu Zayd, Tayyeb Tizini, Muhammad Shahrour, Jamal Al-Banna, and others, they called for a re-reading and reinterpret the Qur’an in the light of Western critical approaches. Then, conveyed and brought the European experience and practice with all its chaotic effects to Islamic thought. The slogan of “Renewal of Religion” from these people has no relation to religion (Islam) or its sources, but instead saturated their ideas with secular methods. They tried to instill modernity rather than religion, and misinterpreted the Islamic sources by distorting it and evacuating it from the true context and setting it with their own understanding. They claim their ideas and opinions as the effort to understand religion and carried the slogan of “Modernization and Modernization of Islam”; they want us to leave the consensus of the Muslim scholars on religious issues (Ijmaa’ al-Ummah) especially relating to the meaning of the Qur’an and Sunnah and bring us to a new views and understanding on religious issues which are contradictory to the views of the past Muslim scholars (al-salaf al-soleh) to fulfill their opinions. Keywords: Modernity, Misunderstanding, Modernists, Contemporary Reading, Modernization of Islam.

scholarly journals Life Cycle Assessment and Material Flow Analysis: Two Under-Utilized Tools for Informing E-Waste Management

2021 ◽  
Vol 13 (14) ◽  
pp. 7939
Author(s):  
Sohani Vihanga Withanage ◽  
Komal Habib
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Material Flow ◽  
Keyword Search ◽  
Technological Development ◽  
Flow Analysis ◽  
Material Flow Analysis ◽  
Civil Society Organizations ◽  
The Past ◽  
Depth Analysis

The unprecedented technological development and economic growth over the past two decades has resulted in streams of rapidly growing electronic waste (e-waste) around the world. As the potential source of secondary raw materials including precious and critical materials, e-waste has recently gained significant attention across the board, ranging from governments and industry, to academia and civil society organizations. This paper aims to provide a comprehensive review of the last decade of e-waste literature followed by an in-depth analysis of the application of material flow analysis (MFA) and life cycle assessment (LCA), i.e., two less commonly used strategic tools to guide the relevant stakeholders in efficient management of e-waste. Through a keyword search on two main online search databases, Scopus and Web of Science, 1835 peer-reviewed publications were selected and subjected to a bibliographic network analysis to identify and visualize major research themes across the selected literature. The selected 1835 studies were classified into ten different categories based on research area, such as environmental and human health impacts, recycling and recovery technologies, associated social aspects, etc. With this selected literature in mind, the review process revealed the two least explored research areas over the past decade: MFA and LCA with 33 and 31 studies, respectively. A further in-depth analysis was conducted for these two areas regarding their application to various systems with numerous scopes and different stages of e-waste life cycle. The study provides a detailed discussion regarding their applicability, and highlights challenges and opportunities for further research.

scholarly journals The emerging technology of biohybrid micro-robots: a review

2021 ◽  
Author(s):  
Zening Lin ◽  
Tao Jiang ◽  
Jianzhong Shang
Keyword(s):  
Self Assembly ◽  
Degrees Of Freedom ◽  
High Energy ◽  
Living Cells ◽  
Multiple Degrees Of Freedom ◽  
The Past ◽  
Great Prevalence ◽  
Performance Decline ◽  
High Energy Efficiency ◽  
Living Tissues

Abstract In the past few decades, robotics research has witnessed an increasingly high interest in miniaturized, intelligent, and integrated robots. The imperative component of a robot is the actuator that determines its performance. Although traditional rigid drives such as motors and gas engines have shown great prevalence in most macroscale circumstances, the reduction of these drives to the millimeter or even lower scale results in a significant increase in manufacturing difficulty accompanied by a remarkable performance decline. Biohybrid robots driven by living cells can be a potential solution to overcome these drawbacks by benefiting from the intrinsic microscale self-assembly of living tissues and high energy efficiency, which, among other unprecedented properties, also feature flexibility, self-repair, and even multiple degrees of freedom. This paper systematically reviews the development of biohybrid robots. First, the development of biological flexible drivers is introduced while emphasizing on their advantages over traditional drivers. Second, up-to-date works regarding biohybrid robots are reviewed in detail from three aspects: biological driving sources, actuator materials, and structures with associated control methodologies. Finally, the potential future applications and major challenges of biohybrid robots are explored. Graphic abstract

scholarly journals Does Neonatal Imitation Exist? Insights From a Meta-Analysis of 336 Effect Sizes

2021 ◽  
pp. 174569162095983
Author(s):  
Jacqueline Davis ◽  
Jonathan Redshaw ◽  
Thomas Suddendorf ◽  
Mark Nielsen ◽  
Siobhan Kennedy-Costantini ◽  
...  
Keyword(s):  
Social Behavior ◽  
Positive Result ◽  
Human Development ◽  
Degrees Of Freedom ◽  
Meta Analysis ◽  
Effect Sizes ◽  
Significant Evidence ◽  
The Past ◽  
Substantial Heterogeneity

Neonatal imitation is a cornerstone in many theoretical accounts of human development and social behavior, yet its existence has been debated for the past 40 years. To examine possible explanations for the inconsistent findings in this body of research, we conducted a multilevel meta-analysis synthesizing 336 effect sizes from 33 independent samples of human newborns, reported in 26 articles. The meta-analysis found significant evidence for neonatal imitation ( d = 0.68, 95% CI = [0.39, 0.96], p < .001) but substantial heterogeneity between study estimates. This heterogeneity was not explained by any of 13 methodological moderators identified by previous reviews, but it was associated with researcher affiliation, test of moderators ( QM) (15) = 57.09, p < .001. There are at least two possible explanations for these results: (a) Neonatal imitation exists and its detection varies as a function of uncaptured methodological factors common to a limited set of studies, and (2) neonatal imitation does not exist and the overall positive result is an artifact of high researcher degrees of freedom.

scholarly journals Security assurance cases—state of the art of an emerging approach

2021 ◽  
Vol 26 (4) ◽  
Author(s):  
Mazen Mohamad ◽  
Jan-Philipp Steghöfer ◽  
Riccardo Scandariato
Keyword(s):  
State Of The Art ◽  
Tool Support ◽  
Security Assurance ◽  
The Past ◽  
Depth Analysis ◽  
Structured Argumentation ◽  
Security Properties ◽  
Standards And Regulations ◽  
Assurance Cases ◽  
Security Standards

AbstractSecurity Assurance Cases (SAC) are a form of structured argumentation used to reason about the security properties of a system. After the successful adoption of assurance cases for safety, SAC are getting significant traction in recent years, especially in safety-critical industries (e.g., automotive), where there is an increasing pressure to be compliant with several security standards and regulations. Accordingly, research in the field of SAC has flourished in the past decade, with different approaches being investigated. In an effort to systematize this active field of research, we conducted a systematic literature review (SLR) of the existing academic studies on SAC. Our review resulted in an in-depth analysis and comparison of 51 papers. Our results indicate that, while there are numerous papers discussing the importance of SAC and their usage scenarios, the literature is still immature with respect to concrete support for practitioners on how to build and maintain a SAC. More importantly, even though some methodologies are available, their validation and tool support is still lacking.

scholarly journals Heterogeneity of SARS-CoV-2 virus produced in cell culture revealed by shotgun proteomics and supported by genome sequencing

2021 ◽  
Author(s):  
Fabrice Gallais ◽  
Olivier Pible ◽  
Jean-Charles Gaillard ◽  
Stéphanie Debroas ◽  
Hélène Batina ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Cell Culture ◽  
Shotgun Proteomics ◽  
Rapid Analysis ◽  
Diagnostic Tools ◽  
Tandem Mass ◽  
The Past ◽  
Viral Particles ◽  
Depth Analysis ◽  
The Subject

AbstractCOVID-19 is the most disturbing pandemic of the past hundred years. Its causative agent, the SARS-CoV-2 virus, has been the subject of an unprecedented investigation to characterize its molecular structure and intimate functioning. While markers for its detection have been proposed and several diagnostic methodologies developed, its propensity to evolve and evade diagnostic tools and the immune response is of great concern. The recent spread of new variants with increased infectivity requires even more attention. Here, we document how shotgun proteomics can be useful for rapidly monitoring the evolution of the SARS-CoV-2 virus. We evaluated the heterogeneity of purified SARS-CoV-2 virus obtained after culturing in the Vero E6 cell line. We found that cell culture induces significant changes that are translated at the protein level, such changes being detectable by tandem mass spectrometry. Production of viral particles requires careful quality control which can be easily performed by shotgun proteomics. Although considered relatively stable so far, the SARS-CoV-2 genome turns out to be prone to frequent variations. Therefore, the sequencing of SARS-CoV-2 variants from patients reporting only the consensus genome after its amplification would deserve more attention and could benefit from more in-depth analysis of low level but crystal-clear signals, as well as complementary and rapid analysis by shotgun proteomics. Graphical abstract

scholarly journals “Man-as-Nation”: Representations of Masculinity and Nationalism in Wu Jing’s Wolf Warrior II

SAGE Open ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 215824402110335
Author(s):  
Tingting Hu ◽  
Tianru Guan
Keyword(s):  
Gender Representation ◽  
Male Body ◽  
The Past ◽  
Box Office ◽  
Depth Analysis ◽  
National Power ◽  
A Site ◽  
Chinese Films

Through an in-depth analysis of gender representation in the box office record-breaking Chinese movie Wolf Warrior II, this study interrogates how the male body is used as a site for the projection of Chinese national power. Furthermore, it illustrates a revival of patriotic pride in China through a contemporary reading of cross-genre action-military films. Developing Shuqin Cui’s notion of “woman-as-nation,” which understands on-screen female victimization in Chinese films as signifying the past suffering of the nation, this study proposes the new concept of “man-as-nation” to explain how the masculine virtues of male protagonists in Chinese films signify the nation’s rejuvenation and strength. Framing male virtue into the paradigms of wu (武), as martial valor, and wen (文), as cultural attainment, this article argues that masculinity has come to symbolize China’s enhanced comprehensive power and to embody its ideological orientation in both global and domestic domains.

scholarly journals Multi-stable composite twisting structure for morphing applications

2012 ◽  
Vol 468 (2141) ◽  
pp. 1230-1251 ◽  
Author(s):  
X. Lachenal ◽  
P. M. Weaver ◽  
S. Daynes
Keyword(s):  
Analytical Model ◽  
Material Properties ◽  
Degrees Of Freedom ◽  
Design Parameters ◽  
Engineering Structures ◽  
The Past ◽  
Wide Range ◽  
Morphing Structure ◽  
Low Mass ◽  
Unstable States

Conventional shape-changing engineering structures use discrete parts articulated around a number of linkages. Each part carries the loads, and the articulations provide the degrees of freedom of the system, leading to heavy and complex mechanisms. Consequently, there has been increased interest in morphing structures over the past decade owing to their potential to combine the conflicting requirements of strength, flexibility and low mass. This article presents a novel type of morphing structure capable of large deformations, simply consisting of two pre-stressed flanges joined to introduce two stable configurations. The bistability is analysed through a simple analytical model, predicting the positions of the stable and unstable states for different design parameters and material properties. Good correlation is found between experimental results, finite-element modelling and predictions from the analytical model for one particular example. A wide range of design parameters and material properties is also analytically investigated, yielding a remarkable structure with zero stiffness along the twisting axis.

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