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1.
Phenol degradation in photochemically enhanced Fenton process was investigated in this work. UV-VIS spectra of phenol degradation showed the difference between photo-Fenton process and UV/H2O2, which is a typical hydroxyl radical process. A possible pathway diagram for phenol degradation in photo-Fenton process was proposed, and a mathematical model for chemical oxygen demand (COD) removal was developed. Operating parameters such as dosage of H2O2 and ferrous ions, pH, suitable carrier gas were found to impact the removal of COD significantly. The results and analysis of kinetic parameters calculated from the kinetic model showed that complex degradation of phenol was the main pathway for removal of COD; while hydroxyl radicals acted weakly in the photo-Fenton degradation of phenol. 相似文献
2.
Research has indicated benefits to individuals and society of holding a multicultural versus colorblind ideology. This cross-sectional study tested the association of endorsement of multiculturalism with the individual difference constructs of identity exploration, identity confusion, and openness. Participants were 188 college students who completed a survey. Multiple regression analyses indicated that identity exploration, identity confusion, and openness independently predicted multicultural ideology. Additionally, identity exploration and identity confusion interacted such that identity exploration was associated with multiculturalism when identity confusion was low, but not when identity confusion was high. These findings indicate that general individual differences in personality and identity are predictive of cultural-related attitudes, and have implications for the design of interventions aimed at increasing multiculturalism. 相似文献
3.
Rethinking Polanyi’s Concept of Tacit Knowledge: From Personal Knowing to Imagined Institutions 总被引:1,自引:0,他引:1
Half a century after Michael Polanyi conceptualised ‘the tacit component’ in personal knowing, management studies has reinvented
‘tacit knowledge’—albeit in ways that squander the advantages of Polanyi’s insights and ignore his faith in ‘spiritual reality’.
While tacit knowing challenged the absurdities of sheer objectivity, expressed in a ‘perfect language’, it fused rational knowing, based on personal experience, with mystical speculation about an un-experienced ‘external reality’. Faith alone saved Polanyi’s model from solipsism. But Ernst von Glasersfeld’s
radical constructivism provides scope to rethink personal tacit knowing with regard to ‘other people’ and the intersubjectively
viable construction of ‘experiential reality’. By separating tacit knowing from Polanyi’s metaphysical realism and drawing
on Benedict Anderson’s concept of ‘imagined communities’, it is possible to conceptualise ‘imagined institutions’ as the tacit
dimension of power that shapes human interaction. Whereas Douglass North claimed institutions could be reduced to rules, imagined
institutions are known in ways we cannot tell. 相似文献
4.
图书馆自动化系统的"开放性"与"二次开发"问题 总被引:4,自引:0,他引:4
具有“开放性”与可“二次开发”是图书馆自动化系统选择的重要指标。文章就图书馆自动化系统的“开放性”与“二次开发”问题提出的原因、“开放性”与“二次开发”范围与深度的界定,以及用户如何参与系统的“二次开发”等问题进行了讨论。 相似文献
5.
In recent years there has been a growing interest in questions related to embodiment and learning. Within the field of ‘body pedagogics’ great efforts have been made to develop theory and methodology that can deal with the corporeal aspects of experience and knowledge without adopting any form of dualistic conceptions of body/mind and organism/environment. This article connects to this body of research. The purpose is to first present a synthesis of James' radical empiricism, Dewey's transactional understanding of experience and learning and Marcel Mauss' concept of ‘body techniques’ and the notion of education embedded in it. Against the background of this theoretical development, and with a Transactional Model of Analyzing Bodying (TMAB), we then show how we can analytically come to terms with different dualistic problems that research into ‘body pedagogics’ has to deal with. We use an empirical example of dinghy sailing to create knowledge about what we learn when learning embodied knowledge, and how this learning takes place. We argue that experience is an important concept for understanding the acting knowing human being, describing how experience is organized and developed and outlining how this organization can be understood as learning. We hold that situations where someone learns to embody certain knowledge are cases of overt actions, in which we can see what kinds of relations are created and how these relations become meaningful for further action. 相似文献
6.
This paper analyzes organizations’ attempts to entice external contributors to submit suggestions for future organizational action. While earlier work has elaborated on the advantages of leveraging the knowledge of external contributors, our findings show that organizational attempts to attract such involvement are likely to wither and die. We develop arguments about what increases the likelihood of getting suggestions from externals in the future, namely through (1) proactive attention (submitting internally developed suggestions to externals to stimulate debate) and (2) reactive attention (paying attention to suggestions from externals to signal they are being listened to), particularly when those suggestions are submitted by newcomers. Findings from an analysis of about 24,000 initiatives by organizations to involve external contributors suggest these actions are crucial for receiving suggestions from external contributors. Our results are contingent upon the stage of the initiative because organizations’ actions exert more influence in initiatives that lack a history of prior suggestions. Our work has implications for scholars of open innovation because it highlights the importance of considering failures as well successes: focusing exclusively on initiatives that reach a certain stage can lead to partial or erroneous conclusions about why some organizations engage external contributors while others fail. 相似文献
7.
8.
以信任、感知风险和创新开放度理论为基础,构建影响中小企业科技服务购买意愿的概念框架并提出研究假设予以论证。以324家宁波中小企业为样本进行实证研究,结果表明:供应商信任(认知信任、情感信任)对企业科技服务购买意愿具有显著正向影响,而感知风险对企业科技服务购买意愿产生显著负向影响;供应商信任与科技服务感知风险之间具有显著负相关关系,且情感信任维度相关性更高;创新开放度对供应商情感信任、感知风险与企业科技服务购买意愿关系的调节作用显著。 相似文献
9.
《国际创新研究学报(英文)》2021,5(3):127-144
The challenges of disruptive innovations have gained significant attention from both academics and practitioners, commercialization being one of the most critical phases. At the same time, however, it is the less studied area of disruptive innovation. Therefore, this article examined scholarly papers on the commercialization of disruptive innovations through a multidisciplinary systematic literature review. It resulted in the analysis of 64 high-quality peer-reviewed academic articles. The analysis highlighted the commercialization models and main constructs that are affecting the commercialization process: market orientation, market learning, user's involvement, market configuration, adoption networks and stakeholders, and innovation transference. The study evidences how commercialization has evolved from a later stage in innovation to influence even the early phases of innovation, characterized in turn by exploration, learning and ecosystem creation activities. Additionally, the analysis led to a proposition that established an integrated commercialization model for high uncertainty innovations. The model has three phases: 1) Concept/value proposition validation, 2) Business model validation & Market creation, and 3) Creating sales in the majority market. Lastly, the article contributes to a better understanding of commercialization processes in high uncertainty innovations, bridging also the academic-practitioner divide. 相似文献
10.
谢贤春 《赣南师范学院学报》2014,(1):114-117
在批判极端构建主义下的学生中心论极端化的同时,对教师和学生中心论的理论追溯,指出片面强调以学生或者教师为"中心"的误区。从实际教学出发,客观分析两者局限性和适用性,批驳"中心"的非此即彼的怪圈。根据后方法具体情境原则及参量,综合我国国情,提出灵活与弹性地运用非平行更迭的"中心"的策略。 相似文献