Towards fully controlled anisotropy in cellular porous media: an overview

2021 ◽  
Vol 263 (1) ◽  
pp. 5253-5259
Author(s):  
Mathieu Gaborit ◽  
Huina Mao ◽  
Romain Rumpler ◽  
Peter Göransson

In the recent years, our team has been working to identify key aspects of anisotropy on porous media. More than just characterising their anisotropic properties, we're interested in generating cellular media with completely designed anisotropic properties. The results of these studies have partly been published and more are to come. In this presentation, we'll present an overview of this work and it ultimately ties to acoustics. We will introduce the key findings,discussed specific results that can be achieved and provide context and details related to the strategy developed to address the tasks.

Author(s):  
Swayamdipta Bhaduri ◽  
Pankaj Sahu ◽  
Siddhartha Das ◽  
Aloke Kumar ◽  
Sushanta K. Mitra

The phenomenon of capillary imbibition through porous media is important both due to its applications in several disciplines as well as the involved fundamental flow physics in micro-nanoscales. In the present study, where a simple paper strip plays the role of a porous medium, we observe an extremely interesting and non-intuitive wicking or imbibition dynamics, through which we can separate water and dye particles by allowing the paper strip to come in contact with a dye solution. This result is extremely significant in the context of understanding paper-based microfluidics, and the manner in which the fundamental understanding of the capillary imbibition phenomenon in a porous medium can be used to devise a paper-based microfluidic separator.


Author(s):  
Nayan Mitra

AbstractCorporate Social Responsibility (CSR) is like a chameleon, that changes its colour according to the context it is in. In the developed economy, it takes the form of sustainability and/ or philanthropy, whereas, in emerging economies, it speaks the language of religious, political and/ or mandated CSR. India, in recent times came into the limelight with its mandated CSR policy that was incorporated into its Companies Act 2013, which became operational from the financial year 2014 - 2015. Mandated CSR is thus a new area of study that is based on the philosophy that ‘CSR should contribute to the national agenda in emerging economies,’ under some statutory guidelines as laid down by the Government.But, business houses, do look for maximising its profit. Profit can be financial and/ or non-financial. If not money, then at least the effort must be compensated with reputation, image, that helps in brand building! And, to have this as an objective, their efforts should be strategic! But, does all strategies work? With these questions and conceptual thinking, this empirical research aims to identify the key aspects of Strategic Management, CSR and Firm Performance and establish relationship between them; apart from developing a valid and reliable scale to do so. This is indeed one of the first researches and documentations done among the large Indian firms in India immediately in the post mandate period and thus forms a base for understanding the CSR dynamics in the years to come.


2018 ◽  
Vol 28 (6) ◽  
pp. 780-799 ◽  
Author(s):  
Radosław Stupak ◽  
Krzysztof Dyga

The article reconstructs postpsychiatry’s core propositions and briefly describes its theoretical background and assumptions. It also presents chosen aspects of postmodern psychotherapy, which seem to be in many ways similar to postpsychiatry’s ideas. Although they are drawn from different inspiration, postpsychiatry and postmodern psychotherapy seem to come to similar conclusions, especially regarding the role of the patient in the therapeutic process, the meaning of psychiatric diagnosis, and the importance of the institutional, cultural, and social contexts in mental health practice and research. The paper also aims to place postpsychiatry and postmodern psychotherapy in a Polish context, focusing on the ethical challenges faced by psychiatry and showing that some of postpsychiatry’s ideas and solutions to contemporary problems were already present in the Polish psychiatric literature of the 20th century. It also contains a brief description of the Polish social and historical context of psychiatry, as well as key aspects of the Polish legal system that relate to mental health and seem to reflect the nature of biomedical explanations of mental distress. It concludes that the model of psychiatric care postulated by “postmodern” approaches seems more ethical and scientifically and philosophically grounded and promises better treatment results than the “traditional” biomedical model.


Author(s):  
E. V. Zhukova

The article studies successive implementation of the concept of sustainable development on the international and Russian market starting with the official formulating the concept in the report ‘Our Common Future’, which was presented by the UN in 1987 and till the latest trends of national economy of the Russian Federation. The author provides the gist of key aspects and notions of ESG-approach to management, analyzes their rise and assesses the degree of their academic elaboration and practical use in Russia. On the basis of the current trend analysis a conclusion was drawn about the importance of introducing the concept of management from ESG-standpoint on all levels of economy. Scientific generalization of practical experience allowed the author to come to the conclusion that international trends of sustainable development will determine the general line in ESG-approach to management of social and economic development in Russia on all levels – from federal to corporate one. The article identifies key regulator trends in carbon regulation, the development of tools of green and responsible financing, commitments on ESG-information revealing and risk management. The latest initiatives of big state, public and finance companies in issuance of green bonds were described, as well as acute trends in the state regulator work in ESG- sphere.


Materials ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 1972 ◽  
Author(s):  
Thomas Dabat ◽  
Arnaud Mazurier ◽  
Fabien Hubert ◽  
Emmanuel Tertre ◽  
Brian Grégoire ◽  
...  

The anisotropic properties of clay-rich porous media have significant impact on the directional dependence of fluids migration in environmental and engineering sciences. This anisotropy, linked to the preferential orientation of flat anisometric clay minerals particles, is studied here on the basis of the simulation of three-dimensional packings of non-interacting disks, using a sequential deposition algorithm under a gravitational field. Simulations show that the obtained porosities fall onto a single master curve when plotted against the anisotropy value. This finding is consistent with results from sedimentation experiments using polytetrafluoroethylene (PTFE) disks and subsequent extraction of particle anisotropy through X-ray microtomography. Further geometrical analyses of computed porous media highlight that both particle orientation and particle aggregation are responsible of the evolution of porosity as a function of anisotropy. Moreover, morphological analysis of the porous media using chord length measurements shows that the anisotropy of the pore and solid networks can be correlated with particle orientation. These results indicate that computed porous media, mimicking the organization of clay minerals, can be used to shed light on the anisotropic properties of fluid transfer in clay-based materials.


2013 ◽  
Vol 34 (2) ◽  
pp. 3-18 ◽  
Author(s):  
Pieter Verdegem ◽  
Christian Fuchs

Abstract Sweden - like the other Nordic countries - is recognized as a leading IT nation. For this reason it is important to evaluate the specificities of Swedish policy discourses on the information society. The development of the information society has been a key topic in policy debates since the mid-1990s. More recently, new concepts such as ‘sustainable’ or ‘green knowledge society’ have emerged. This puts forward new questions about which type of information society we aim to achieve. The present article contributes to the theoretical foundations of information society policies by introducing the notion of a participatory, co-operative, and sustainable information society (PCSIS). We apply this notion to Swedish policymaking by investigating ICT policy discourses. We also make a comparison with the recently launched Digital Agenda, the grand vision of the European Commission regarding the future of the information society. Our overall conclusion is that Swedish and European visions can be labeled as dualistic and reductionist approaches, respectively. This means that both approaches fail to come up with a more elaborated perspective on the information society that links the key aspects participation, co-operation and sustainability in a convincing way. A dialectical approach, i.e. an approach that considers sustainability in multidimensional and interdependent aspects, is currently lacking in both Swedish and European policymaking.


2009 ◽  
Vol 29 ◽  
pp. 291-309
Author(s):  
Leonard J. Moore

Immediately after the 2004 election, Republicans confidently believed in continued conservative political dominance. Shortly, a string of political and administrative disasters shattered the Bush presidency, and crises yet to come further devastated the political fortunes of American conservatism. Bush’s failures as president, while highly significant, only partially explained the conservative collapse. The deeper cause lay in the long-term weakness of conservative policies and political tactics. An examination of two key aspects of modern conservatism, conservative populism and opposition to government activism, shows that the collapse came primarily because of Bush’s loyalty to entrenched, mainstream conservative ideas and policies that were unrealistic and destined to fail.


2021 ◽  
pp. 209653112098587
Author(s):  
Futao Huang ◽  
Lilan Chen

Purpose: The purpose of this study is to identify the key aspects of the demographic characteristics and motivations of Chinese faculty at Japanese universities. Design/Approach/Methods: Main methods include an analysis of relevant data from a national survey of full-time international faculty in Japan in 2017 and results from semi-structured interviews with several full-time Chinese faculty hired in different Japanese universities. Findings: This study suggests that, compared to the average level of international faculty, there are larger numbers of female Chinese faculty, greater numbers of Chinese professors, Chinese doctoral degree holders, Chinese faculty in engineering, and larger numbers of them being engaged in research rather than teaching. Further, this study argues that the most important reasons for Chinese faculty to work in Japanese universities are academic or professional reasons, followed by their fondness for Japanese life and culture and their agreement with better living conditions in Japan than in China. Originality/Value: It is the first time that the key characteristics of full-time Chinese faculty at Japanese universities and their motivations to come in Japan are investigated and discussed based on both quantitative and qualitative methods.


Author(s):  
P Moodley

With reference to the case of De Gree v Webb 2007 SCA 87 (RSA) and developments in the field of international and South African child law, this contribution examines some challenges posed to the judiciary in particular with regard to inter-country adoptions and the application of the best interests of the child principle in this context.  In traversing the area of inter-country adoption law against the background of provisions from related international treaties, the author alludes to some key aspects that may require attention in South Africa in years to come.  Pending the promulgation of regulations in terms of the Children’s Act the author furthermore comments on the role that co-operative governance and implementation of the 2006 Guidelines for Inter-Country Adoption may play.   


Author(s):  
J. Anthony VanDuzer

SummaryRecently, there has been a proliferation of international agreements imposing minimum standards on states in respect of their treatment of foreign investors and allowing investors to initiate dispute settlement proceedings where a state violates these standards. Of greatest significance to Canada is Chapter 11 of the North American Free Trade Agreement, which provides both standards for state behaviour and the right to initiate binding arbitration. Since 1996, four cases have been brought under Chapter 11. This note describes the Chapter 11 process and suggests some of the issues that may arise as it is increasingly resorted to by investors.


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