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Journal articles on the topic 'Vertical knowledge transfer'
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Urbancová, Hana, and Martina Fejfarová. "Vertical knowledge transfer in Czech organizations." Business: Theory and Practice 16, no. (3) (2015): 231–42. https://doi.org/10.3846/btp.2015.477.
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For organizations the losing key employees is the greatest threat; if the organizations lose the key workers, they cannot use their premises, data, information and other resources. The article aims at evaluation of the level of vertical knowledge transfer in organizations in the Czech Republic. The partial goals of this article are to determine dependencies between the examined qualitative features. The article has been drawn up using scientific methods, in particular logical methods, such as analysis, synthesis, induction, deduction and comparison. The results were obtained from longitudinal quantitative research in organizations in the Czech Republic from 2010 to 2014. The article identifies the factors affecting vertical knowledge transfer and presents a method of eliminating the risk of losing key knowledge workers. Vertical knowledge transfer is a new supporting factor of organizations' productivity and business continuity.
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Urbancová, Hana, and Martina Fejfarová. "Vertical knowledge transfer in Czech organizations." Verslas: Teorija ir Praktika 16, no. 3 (2015): 231–42. http://dx.doi.org/10.3846/btp.2015.477.
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For organizations the losing key employees is the greatest threat; if the organizations lose the key workers, they cannot use their premises, data, information and other resources. The article aims at evaluation of the level of vertical knowledge transfer in organizations in the Czech Republic. The partial goals of this article are to determine dependencies between the examined qualitative features. The article has been drawn up using scientific methods, in particular logical methods, such as analysis, synthesis, induction, deduction and comparison. The results were obtained from longitudinal quantitative research in organizations in the Czech Republic from 2010 to 2014. The article identifies the factors affecting vertical knowledge transfer and presents a method of eliminating the risk of losing key knowledge workers. Vertical knowledge transfer is a new supporting factor of organizations’ productivity and business continuity.
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Castro, Rita, and António Carrizo Moreira. "Mapping Internal Knowledge Transfers in Multinational Corporations." Administrative Sciences 13, no. 1 (2023): 16. http://dx.doi.org/10.3390/admsci13010016.
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Managing multiple knowledge transfers between headquarters and subsidiaries, among subsidiaries, and also within each of these units is crucial for multinational corporations’ (MNCs) survival. Therefore, this article aims to uncover the main factors influencing internal knowledge transfers in MNCs—including intra-unit knowledge transfers and transfers between units, namely, conventional, horizontal, and reverse knowledge transfers. To achieve this goal, a systematic literature review (SLR) was conducted to synthesize the content of 85 articles. From a set of 1439 papers, only 85 related to knowledge transfer and knowledge sharing were considered. Based on an inductive thematic approach, eight different research categories and 97 topics were identified. Four different internal knowledge transfers (intra knowledge transfer (IKT), horizontal knowledge transfer (HKT), conventional knowledge transfer (CKT), and reverse knowledge transfer (RKT)) are compared across eight thematic categories and 97 topics. According to the results obtained, the depth of the topics analyzed varies, as does the variety of categories, with RKT being more deeply analyzed than IKT. There is a clear dominance of vertical knowledge transfer (CKT + RHT) over HKT. The exercise of power (e.g., size, knowledge base) still dominates CKT and RKT in most of the studies analyzed, which are traditionally affected by the characteristics of MNCs, HQs and subsidiaries. The debate on HKT is affected by the classical perspectives of power-based relations (e.g., expatriates, size, knowledge base) among subsidiaries. Although important, intra-unit knowledge transfer is greatly influenced by characteristics.
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Giencke, Anneli. "Vertical Studio." Cubic Journal, no. 4 (November 1, 2021): 100–107. http://dx.doi.org/10.31182/cubic.2021.4.041.
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Since 2016 the Environmental and Interior Design Programme (E&I), School of Design, The Hong Kong Polytechnic University, has implemented an educational model called the vertical studio. Until now, the vertical studio model has become an instrumental peer-to-peer learning scheme while enhancing students' competency in digital literacy. A first of its kind within the design education context of Asia, the vertical studio model has contributed to advance design education practices, embracing collaborative learning opportunities, and facilitate knowledge and skills transfer of drawing techniques, technology, and digital proficiency.
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Gao, Dashan, Sheng Wan, Lixin Fan, Xin Yao, and Qiang Yang. "Complementary Knowledge Distillation for Robust and Privacy-Preserving Model Serving in Vertical Federated Learning." Proceedings of the AAAI Conference on Artificial Intelligence 38, no. 18 (2024): 19832–39. http://dx.doi.org/10.1609/aaai.v38i18.29958.
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Vertical Federated Learning (VFL) enables an active party with labeled data to enhance model performance (utility) by collaborating with multiple passive parties that possess auxiliary features corresponding to the same sample identifiers (IDs). Model serving in VFL is vital for real-world, delay-sensitive applications, and it faces two major challenges: 1) robustness against arbitrarily-aligned data and stragglers; and 2) privacy protection, ensuring minimal label leakage to passive parties. Existing methods fail to transfer knowledge among parties to improve robustness in a privacy-preserving way. In this paper, we introduce a privacy-preserving knowledge transfer framework, Complementary Knowledge Distillation (CKD), designed to enhance the robustness and privacy of multi-party VFL systems. Specifically, we formulate a Complementary Label Coding (CLC) objective to encode only complementary label information of the active party's local model for passive parties to learn. Then, CKD selectively transfers the CLC-encoded complementary knowledge 1) from the passive parties to the active party, and 2) among the passive parties themselves. Experimental results on four real-world datasets demonstrate that CKD outperforms existing approaches in terms of robustness against arbitrarily-aligned data, while also minimizing label privacy leakage.
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Shang, Qingyan, and Jessie P. H. Poon. "INTERNATIONAL SPILLOVERS, KNOWLEDGE ACQUISITION AND TRANSFER AMONG JAPANESE FIRMS IN THE UNITED STATES." Journal of Business Economics and Management 14, no. 3 (2012): 535–57. http://dx.doi.org/10.3846/16111699.2012.658853.
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In this paper, we investigate (i) the relationship between international spillovers and knowledge acquisition, and, (ii) intra-firm subsidiary-to-parent transfer of technology among Japanese firms in the United States. Using a survey of 185 firms, probit regressions reveal that R&D personnel and market power significantly influence the acquisition of knowledge associated with basic and applied science and product development. Tacit knowledge that resides in customers, and skilled personnel are effective sources for exploitation of international knowledge spillovers. Participation in seminars and conferences also enhances the acquisition of applied science. Firms that rely on codified sources are unlikely to acquire any knowledge. This research also confirms other authors’ findings that subsidiary autonomy facilitates knowledge acquisition. In addition, knowledge in product development is most likely to lead to vertical intra-firm transfers while applied scientific research only results in the transfer of R&D capability. Scientific team visits from the US to Japan support subsidiaries’ transfer of R&D capability but teams sent from Japan to the US adversely affect transfers. Overall, our results suggest international spillovers are predominantly associated with the acquisition of tacit knowledge, and intra-firm transfers are most effective in the context of knowledge acquired in applied research and product development.
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Ho, Yen-Chen. "Multilateral knowledge transfer and multiple embeddedness." Multinational Business Review 22, no. 2 (2014): 155–75. http://dx.doi.org/10.1108/mbr-04-2014-0010.
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Purpose – The purpose of this paper is to argue that multilateral knowledge transfer emerges from two lines of thinking in the international business (IB) literature – the exploitation of multinationality and the contributory role of subsidiaries – and links three levels of analysis – headquarters, knowledge-creating subsidiaries and host-country environments. Design/methodology/approach – Multilateral knowledge transfer, both vertical and horizontal, is considered in this paper as a cross-level phenomenon that emerges as a result of beneficial interdependencies between headquarters, knowledge-creating subsidiaries and their host-country environments. The paper also discusses the concept of embeddedness, which both lines of thinking draw upon, and argues that the multinational enterprise (MNE) headquarters can actually moderate both internal and external embeddedness through global strategy and organizational design. Findings – By putting forward an integrative cross-level interdependency framework that incorporates insights from the R&D internationalization literature and the subsidiary evolution literature, this paper delineates multilateral knowledge transfer as an MNE strategy to systematically transform and integrate knowledge created at the subsidiary-level for the global competitive advantage at the MNE group-level. Originality/value – Such a perspective reemphasizes the multi-level nature of IB studies and provides new opportunities for theoretical and empirical development as did the internalization theory which has theorized the conventional headquarters-to-subsidiaries knowledge transfer more than 40 years ago.
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Goh, Ai-Ting. "Knowledge diffusion, input supplier's technological effort and technology transfer via vertical relationships." Journal of International Economics 66, no. 2 (2005): 527–40. http://dx.doi.org/10.1016/j.jinteco.2004.06.010.
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Testa, Giovanna. "Knowledge transfer in vertical relationship: the case study of Val d'Agri oil district." Journal of Knowledge Management 17, no. 4 (2013): 617–36. http://dx.doi.org/10.1108/jkm-03-2013-0107.
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Ciabuschi, Francesco, Henrik Dellestrand, and Philip Kappen. "Exploring the Effects of Vertical and Lateral Mechanisms in International Knowledge Transfer Projects." Management International Review 51, no. 2 (2011): 129–55. http://dx.doi.org/10.1007/s11575-011-0068-1.
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Ren, Zhimin, Honggang Zheng, and Qican Yang. "Research on the Key Paths of Enterprise Integration of Domestic and Foreign Trade from the Perspective of Knowledge Transfer." Advances in Politics and Economics 7, no. 2 (2024): p149. http://dx.doi.org/10.22158/ape.v7n2p149.
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The issue of inefficient industry innovation caused by the segmentation of domestic and foreign trade markets has been prominent, leading to a long-standing "productivity paradox" between domestic and foreign trade. "Constructing a new pattern of integration of domestic and foreign trade with the domestic cycle as the main body and the mutual promotion of domestic and international cycles" is a strategic deployment of the Party Central Committee and the State Council. This paper investigates the problems and intrinsic mechanisms faced in the process of enterprise integration of domestic and foreign trade from the perspective of knowledge transfer. It clarifies that the primary task of integrating domestic and foreign trade is to solve the problem of inefficient knowledge transfer between domestic and foreign trade. At the same time, the study shows that: On the one hand, by constructing a horizontal system of knowledge transfer between domestic and foreign trade, it is possible to effectively enable foreign trade enterprises to enjoy the dividends of unified large market reforms, better integrate resources and standards with the domestic trade market, and promote the transfer of knowledge achievements of foreign trade enterprises to the domestic market. On the other hand, through vertical industrial ecological knowledge embedding, it can promote domestic enterprises to leverage the advantages of domestic consumption scale, integrate technology, channels, and platform resources, achieve knowledge embedding of enterprises in the vertical ecological chain of industries, and ultimately achieve the goal of integrated development of domestic and foreign trade.
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Mesquita, Luiz F., Jaideep Anand, and Thomas H. Brush. "Comparing the resource-based and relational views: knowledge transfer and spillover in vertical alliances." Strategic Management Journal 29, no. 9 (2008): 913–41. http://dx.doi.org/10.1002/smj.699.
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Bourouis, Abderrahim, Abdeslam Omara, and Said Abboudi. "Upward and downward conjugate mixed convection heat transfer in a partially porous cavity." International Journal of Numerical Methods for Heat & Fluid Flow 26, no. 1 (2016): 159–88. http://dx.doi.org/10.1108/hff-01-2015-0037.
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Purpose – The purpose of this paper is to provide a numerical study of conjugate heat transfer by mixed convection and conduction in a lid-driven enclosure with thick vertical porous layer. The effect of the relevant parameters: Richardson number (Ri=0.1, 1, 10) and thermal conductivity ratio (Rk=0.1, 1, 10, 100) are investigated. Design/methodology/approach – The studied system is a two dimensional lid-driven enclosure with thick vertical porous layer. The left vertical wall of the enclosure is allowed to move in its own plane at a constant velocity. The enclosure is heated from the right vertical wall isothermally. The left and the right vertical walls are isothermal but temperature of the outside of the right vertical wall is higher than that of the left vertical wall. Horizontal walls are insulated. The governing equations are solved by finite volume method and the SIMPLE algorithm. Findings – From the finding results, it is observed that: for the two studied cases, heat transfer rate along the hot wall is a decreasing function of thermal conductivity ratio irrespective of Richardson numbers contrary to the heat transfer rate along the fluid-porous layer interface which is an increasing function of thermal conductivity ratio. At forced convection dominant regime, the difference between heat transfer rate for upward and downward moving wall is insensitive to the thermal conductivity ratio. For downward moving wall, average Nusselt number is higher than that of upward moving wall. Practical implications – Some applications: building applications, furnace design, nuclear reactors, air solar collectors. Originality/value – From the bibliographic work and the authors’ knowledge, the conjugate mixed convection in lid-driven partially porous enclosures has not yet been investigated which motivates the present work that represent a continuation of the preceding investigations.
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Zhou, Qianwen, Xiaopeng Deng, Bon-Gang Hwang, and Wenying Ji. "Integrated Framework of Horizontal and Vertical Cross-Project Knowledge Transfer Mechanism within Project-Based Organizations." Journal of Management in Engineering 36, no. 5 (2020): 04020062. http://dx.doi.org/10.1061/(asce)me.1943-5479.0000828.
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Esra, Kizilci, Ozalp Nurhan, Ayca Dilara Yilmaz, and Ozcelik Berrin. "Vertical and Horizontal Transmission of Streptococcus Mutans and Effective Factors: An In Vivo Study." Journal of Advanced Oral Research 11, no. 2 (2020): 172–79. http://dx.doi.org/10.1177/2320206820942694.
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Aim: The degree of vertical (intrafamilial) and horizontal (extrafamilial) transfer of Streptococcus mutans ( S. mutans) to a child shows differences according to cultures. The wrong care habits may result in transfer of S. mutans. The aim of this study was to determine the vertical and horizontal transmission of S. mutans to a child and effective factors. Materials and Methods: Mothers and kindergarten staff of 37 children aged between 4 and 5 years who initially started in two kindergartens (Group 1, n = 19; Group 2, n = 18) were included in this in vivo study according to 95% reliability and 80% theoretical power. Intraoral examination of mothers and children made according to the World Health Organization criteria (dmf-t/DMF-T) was done, following which mothers were asked to fill questionnaire forms including knowledge and attitudes of them about oral/dental health care. 1 mL saliva samples received from children/mothers/staff were examined microbiologically in order to isolate and quantify S. mutans. Arbitrarily primed polymerase chain reaction analysis was done to determine the genetic characteristics of S. mutans. All examinations were repeated to evaluate the horizontal transmission in the fifth month. Parametric tests ( t-test and two-way analysis of variance) were employed for comparison of the variables that meet the normality assumption and nonparametric tests (Mann–Whitney) were also used. Results: It was observed that there is a statistically significant correlation between mother DMF-T values and mother–child S. mutans similarity level ( P < .05). There is a statistically positive correlation between the habits of using a common fork, spoon, glass, and mother–child similarity level. Conclusion: Vertical and horizontal transfers occurred in Turkish families in order to prevent the transfer of S. mutans; wrong baby care habits that may lead to the transfer of S. mutans, which is the main factor in case of tooth decay, should be avoided.
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Shaikh, Imran Shaikh Afser, and R. M. Sawant Dr. "Analysis of Structure with Transfer Level at Lower Storey – An Investigation into Response against Seismic." Journal of Engineering Analysis and Design 2, no. 3 (2020): 1–10. https://doi.org/10.5281/zenodo.3596589.
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In current era, lots of complex & variable planning requirements are imposed. So, it becomes very difficult to take columns continued from bottom to top storey to fulfill those requirements, hence necessity of a transfer storey arises due to vertical irregularity of columns. In order to transfer the massive loads of multistorey buildings up to the foundation a huge transfer slab/girder is constructed, this structural feature is a transfer slab or transfer girder. The use of transfer floor/girder requires proper analysis and thorough technical knowledge of structural engineering. This paper aims at analyzing the critical parameters of structure with & without transfer level in multistorey structure by doing static & dynamic analysis. Such structural features are one of the most tedious in the construction of multi-storey buildings.
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Djulius, Horas. "Foreign Direct Investment and Technology Transfer: Knowledge Spillover in the Manufacturing Sector in Indonesia." Global Business Review 18, no. 1 (2017): 57–70. http://dx.doi.org/10.1177/0972150916666878.
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Knowledge spillover, as a form of technology transfer from foreign direct investment (FDI), has frequently been investigated in the contexts of various countries. This study aims to examine whether the availability of labour working for foreign companies could trigger improved productivity of the companies’ domestic workers. It also aims to investigate the horizontal and vertical spillovers that might occur, formally or less formally, and to discover whether specialization and industrial competition play a role in facilitating knowledge spillover in Indonesia’s manufacturing industry. What differentiates this study from previous similar studies is our investigation of whether or not the business orientation and intensity factors of domestic companies could be catalysts for knowledge spillover. To examine this, we use firm-level data and econometrics modelling to test our hypotheses. An important finding of this study is that the export orientation of domestic companies is a critical factor in promoting knowledge spillover.
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Joshi, Vaishali M., Prajkta P. Dandavate, Rashmi Ramamurthy, Riddhi Mirajkar, Neeta N. Thune, and Gitanjali R. Shinde. "Empower BreastNet: breast cancer detection with transfer learning VGG Net-19." Indonesian Journal of Electrical Engineering and Computer Science 37, no. 3 (2025): 1927. https://doi.org/10.11591/ijeecs.v37.i3.pp1927-1935.
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<span style="vertical-align: inherit;"><span style="vertical-align: inherit;">Breast cancer is a major cause of death among women globally, making early detection crucial for effective treatment. This study introduces a new deep learning (DL) method using transfer learning (TL) to automatically detect and diagnose breast cancer. TL improves performance on new tasks by using knowledge from previous tasks. In this study, we use pre-trained convolutional neural networks (CNNs) like AlexNet, ResNet50, visual geometry group (VGG)-16, and VGG-19 to extract features from the breast cancer wisconsin (BCW) diagnostic dataset. We measure the model's success with accuracy, sensitivity, specificity, precision, and F-score. The results show that the VGG-19 model, when applied with TL, performs best for diagnosing breast cancer, achieving an overall accuracy of 98.75%, sensitivity of 97.38%, specificity of 98.35%, precision of 97.35%, and an F-score of 97.66%.</span></span>
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Kayser, K., and S. Kunst. "Processes in vertical-flow reed beds: nitrification, oxygen transfer and soil clogging." Water Science and Technology 51, no. 9 (2005): 177–84. http://dx.doi.org/10.2166/wst.2005.0314.
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Vertical-flow reed beds (VF) with intermittent feeding are extremely reliable regarding aerobic processes. For a save operation with high nitrification rates and without soil clogging it is essential to preserve aerobic conditions in the filter. The challenge is to keep aerobic conditions in the filter without oversizing the system (economical aspects). It is very difficult to determine the current oxygen content in the filters because it ultimately results from complex interactions of a large number of different influencing parameters such as loading rate, degree of clogging, temperature, and hydraulic behaviour of the reed bed. To gain better knowledge of this complex system, different tests and examinations were carried out over several years. Focusing on the questions of identification and the description of conversion and transport processes (water/gas), a full-scale treatment plant under clogged and non-clogged conditions was investigated in detail. Additionally soil column test were carried out. The results make it possible to describe some of the processes and their interactions in the filter body. Recommendations for a safe and controlled operation can be derived.
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Dr., R. M. Sawant, and Imran Shaikh Afser Shaikh. "Seismic Behavior of Multistory Building with and Without Transfer Level Subjected To Earthquake Excitations." Journal of Structural Technology (e-ISSN: 2581-950X) 5, no. 1 (2019): 18–29. https://doi.org/10.5281/zenodo.3591457.
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In today’s world of complex planning, necessity of a transfer girder/floor arises when there is any irregularity in the vertical continuity of columns and the loads are large enough. In order to transfer the massive load of high rise buildings to the supports then to the foundations, a huge tabletop-like slab is constructed using reinforced cement concrete this thick plate like structural arrangement is called a transfer slab/floor. And if such irregular columns are erected from beams it is called as transfer girder. The use of transfer girder/floor requires critical analysis and thorough knowledge of structural complexities. This paper aims at analyzing the critical parameters of structure with and without transfer level in RCC frame structure by doing static as well as dynamic analysis. Such structural transfer levels are one of the most complexes in the construction of a multi-storey building.
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Wang, Xiaoling, Qi Kang, Mengchu Zhou, Zheng Fan, and Aiiad Albeshri. "A Knowledge Sharing and Individually Guided Evolutionary Algorithm for Multi-Task Optimization Problems." Applied Sciences 13, no. 1 (2023): 602. http://dx.doi.org/10.3390/app13010602.
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Multi-task optimization (MTO) is a novel emerging evolutionary computation paradigm. It focuses on solving multiple optimization tasks concurrently while improving optimization performance by utilizing similarities among tasks and historical optimization knowledge. To ensure its high performance, it is important to choose proper individuals for each task. Most MTO algorithms limit each individual to one task, which weakens the effects of information exchange. To improve the efficiency of knowledge transfer and choose more suitable individuals to learn from other tasks, this work proposes a general MTO framework named individually guided multi-task optimization (IMTO). It divides evolutions into vertical and horizontal ones, and each individual is fully explored to learn experience from the execution of other tasks. By using the concept of skill membership, individuals with higher solving ability are selected. Besides, to further improve the effect of knowledge transfer, only inferior individuals are selected to learn from other tasks at each generation. The significant advantage of IMTO over the multifactorial evolutionary framework and baseline solvers is verified via a series of benchmark studies.
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Lusher, Amy L., Ciaran O'Donnell, Rick Officer, and Ian O'Connor. "Microplastic interactions with North Atlantic mesopelagic fish." ICES Journal of Marine Science 73, no. 4 (2015): 1214–25. http://dx.doi.org/10.1093/icesjms/fsv241.
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Abstract Microplastics in the marine environment are well documented, and interactions with marine biota have been described worldwide. However, interactions with vertically migrating fish are poorly understood. The diel vertical migration of mesopelagic fish represents one, if not the largest, vertical migration of biomass on the planet, and is thus an important link between the euphotic zone, transporting carbon and other nutrients to global deep sea communities. Knowledge of how mesopelagic fish interact and distribute plastic as a marine contaminant is required as these populations have been identified as a potential global industrial fishery for fishmeal production. Ingestion of microplastic by mesopelagic fish in the Northeast Atlantic was studied. Approximately 11% of the 761 fish examined had microplastics present in their digestive tracts. No clear difference in ingestion frequency was identified between species, location, migration behaviour, or time of capture. While ingesting microplastic may not negatively impact individual mesopelagic fish, the movement of mesopelagic fish from the euphotic zone to deeper waters could mediate transfer of microplastics to otherwise unexposed species and regions of the world's oceans.
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Schuetz, Thomas. "The Legend of Pure Spring Water: The Development of Industrial Water Treatment and its Diffusion through Technology Transfer as the Basis for the Industrialization and Internationalization of Brewing." Jahrbuch für Wirtschaftsgeschichte / Economic History Yearbook 65, no. 1 (2024): 133–54. http://dx.doi.org/10.1515/jbwg-2024-0008.
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Abstract By examining the horizontal and vertical, international knowledge and technology transfer of specific industrial water-treatment-technologies, this paper reflects on their interaction with beer production. Against the background of the discrepancy between the importance of narratives on naturalness and originality in relation to brewing water and the industrial mass production in its historicity, an insight into a largely invisible but nevertheless fundamentally important technology will be given.
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Suryaningsih, Dwie Retna, and Erna Haryanti. "AN ECONOMIC NON-PRODUCTIVE GROUP STRETCHED THROUGH THE VERTICAL GARDEN WITH WASTE PRODUCTS." International Journal of Engagement and Empowerment (IJE2) 1, no. 3 (2021): 2015–212. http://dx.doi.org/10.53067/ije2.v1i3.38.
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Economically non-productive groups in Pakis Village, Sawahan Sub-district, Surabaya City who are the target of this Community Service activity are members of PKK RT 05 and RT 06 RW IX Dukuh Kupang Timur Surabaya. Transfer of Knowledge and technology to the target includes Extension and training activities: Entrepreneurship Training, Marketing technique training, Post-harvest management training, and Vertical Garden cultivation techniques training. The implementation of Community Service in Pakis Village, Sawahan District, Surabaya City uses the PRRA (Participatory Rapid Rural) and RRA (Rapid and Rural Appraisal) methods. This activity allows targets to collaborate with universities as implementers on activities, including planning, organizing, implementing, and evaluating them. Increased motivation for independent entrepreneurship through vegetable cultivation activities, mastery of Vertical Garden technology effectively and efficiently, knowledge of post-harvest, packaging, and labeling technology can add value to vegetable products, and development of this activity as a sustainable entrepreneurial accomplishment this activity
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Purusothaman, Abimanyu, Abderrahmane Baïri, and Nagarajan Nithyadevi. "3D natural convection on a horizontal and vertical thermally active plate in a closed cubical cavity." International Journal of Numerical Methods for Heat & Fluid Flow 26, no. 8 (2016): 2528–42. http://dx.doi.org/10.1108/hff-08-2015-0341.
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Purpose The purpose of this paper is to examine numerically the natural convection heat transfer in a cubical cavity induced by a thermally active plate. Effects of the plate size and its orientation with respect to the gravity vector on the convective heat transfer and the flow structures inside the cavity are studied and highlighted. Design/methodology/approach The numerical code is based on the finite volume method with semi-implicit method for pressure-linked equation algorithm. The convective and diffusive terms in momentum equations are handled by adopting the power law scheme. Finally, the discretized sets of algebraic equations are solved by the line-by-line tri-diagonal matrix algorithm. Findings The results show that plate orientation and size plays a significant role on heat transfer. Also, the heat transfer rate is an increasing function of Rayleigh number for both orientations of the heated plate. Depending on the thermal management of the plate and its application (as in electronics), the heat transfer rate is maximized or minimized by selecting appropriate parameters. Research limitations/implications The flow is assumed to be 3D, time-dependent, laminar and incompressible with negligible viscous dissipation and radiation. The fluid properties are assumed to be constant, except for the density in the buoyancy term that follows the Boussinesq approximation. Originality/value The present work will give some additional knowledge in designing sealed cavities encountered in some engineering applications as in aeronautics, automobile, metallurgy or electronics.
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Kavitha, S., and A. Selvaraj. "Rotation and Dufour Impact on Unsteady Flow Past a Parabolic Accelerated Vertical Plate with Uniform Temperature and Mass Diffusion." Indian Journal Of Science And Technology 17, no. 24 (2024): 2482–93. http://dx.doi.org/10.17485/ijst/v17i24.1422.
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Objective : Fluid dynamics and heat transfer theory examine the Dufour phenomenon and the rotational influence of unstable parabolic flow across an accelerating infinite vertical plate. This scenario involves several parameters, including the "mass Grashof number (Gr), thermal Grashof number (Gc), Prandtl number (Pr), Hartmann number (Ha), Schmidt number (Sc), Dufour number (Dc), and acceleration parameter". Method : We have applied the Laplace transform method to the resulting PDE. This method converts the equations to algebraic form, making it easier to solve for velocity, temperature, and concentration in terms of time and space. Graphs can show the relationship between the acceleration parameter and numerous parameters such as mass and thermal Grashof, Hartmann (Ha), and Dufour (Df), as well as the consequent velocity profile. If the velocity increases when these variables change, we'll look at the physical reasons that generate this behaviour. We will examine the conclusions using experimental data or existing theoretical models, considering the model's assumptions and limits. Finally, highlight the significant facts and insights gained from the analysis. We will discuss potential future research possibilities, such as exploring more complex geometries or accounting for new physical effects. Findings : The increase in Dufour parameter value causes an increase in temperature and level trends, demonstrating the significant influence of these factors on the researched phenomena. Novelty: This research advances our understanding of heat and mass transfer phenomena by isolating the Dufour effect in a novel scenario involving unsteady flow around a rotating vertical plate, filling a gap in the existing body of knowledge that is dominated by MHD-inclusive investigations. Suggestions: This approach is fairly general and may be applied to find analysis of heat and mass transfer on Dufour effect for other effects such as Soret effect, Hall current of heat and mass transfer. Keywords: Uniform Temperature, Thermo diffusion (Dufour), Inverse Laplace, Rotational, Constant Mass
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Umar, Efrizon, Nathanael Panagung Tandian, Ahmad Ciptadi Syuryavin, Anwar Ilmar Ramadhan, and Joko Hadi Prayitno. "CFD Analysis of Convective Heat Transfer in a Vertical Square Sub-Channel for Laminar Flow Regime." Fluids 7, no. 6 (2022): 207. http://dx.doi.org/10.3390/fluids7060207.
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The development of new practices in nuclear research reactor safety aspects and optimization of recent nuclear reactors needs knowledge on forced convective heat transfer within sub-channels formed between several nuclear fuel rods or heat exchanger tubes, not only in the fully developed regime but also in the developing regime or laminar flow regime. The main objective of this research was to find a new correlation equation for calculating the convective heat transfer coefficient in the vertical square sub-channels. Recently, a simulation study was conducted to find a new heat transfer correlation equation for calculating the convective heat transfer coefficient within a vertical square sub-channel in the developing regime or laminar flow regime for Reynolds number range 400 ≤ Re ≤ 1700. Simulations were carried out using a computational fluid dynamics (CFD) code and modeling already defined in the software. The novelty of the research lies in the analysis of the entrance effect for the sub-channel by proposing a new empirical correlation that can then be inserted into the STAT computer code. The surface temperature distribution around the tangential direction of the active cylinders shows that the implementation of active and dummy cylinders in the current study can simulate sub-channels that exist in a real nuclear reactor core. The current study shows that the flow simulated in this study is in its developing condition (entrance region). A new forced convective heat transfer correlation for the developing region in the form of Nu = 2.094(Gz)0.329 for the Graetz number range 161 ≤ Gz ≤ 2429 was obtained from the current study.
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Olbers, Dirk, Friederike Pollmann, and Carsten Eden. "On PSI Interactions in Internal Gravity Wave Fields and the Decay of Baroclinic Tides." Journal of Physical Oceanography 50, no. 3 (2020): 751–71. http://dx.doi.org/10.1175/jpo-d-19-0224.1.
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AbstractBarotropic tidal oscillations over seafloor topography generate baroclinic tides that may be damped in turn via nonlinear triad interactions with internal gravity waves, fueling the ambient wave field. We derive the kinetic equations for this tidal damping and the energy transfer to the ambient wave field and compute damping times and energy transfer rates for the M2 tide and a Garrett–Munk-like ambient wave field. We show that parametric subharmonic instability (PSI) interactions are important, where the tide interacts resonantly with two background waves, each of half the tidal frequency. PSI is restricted to the latitude belt 28.8°N/S and yields under typical conditions damping times of about 20 days for tides with low vertical wavenumber. Damping times decrease with equivalent mode number j roughly as 1/j2. Outside the critical latitudes PSI is not possible, and damping times are from one to two orders of magnitude larger. The energy transfer to the ambient wave field is concentrated at half the tidal frequency ω at all latitudes within the critical latitude belt. Outside, the transfer is much smaller and peaks at ω + f and N. An estimation of the tidal spectral transfer on the global scale is hampered by insufficient knowledge of the baroclinic energy distribution over the vertical modes. Using results from a numerical circulation model with tidal forcing, we find an energy transfer from the tide to the ambient wave field of typically 0.3 TW, about half of what is currently proposed for the conversion of barotropic to baroclinic energy.
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Havlíček, J., J. Hron, and I. Tichá. "Knowledge based case studies ." Agricultural Economics (Zemědělská ekonomika) 52, No. 12 (2012): 545–51. http://dx.doi.org/10.17221/5065-agricecon.
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In the present development of a knowledge society and with the increasing impact of knowledge on economic growth, case studies have become vehicles of knowledge which can both store and transfer it. Knowledge based case studies describe the best practices as well as solutions of complex problems. Knowledge in case studies is described in both written and symbolic form. The content and form of knowledge based case studies should be in mutual equilibrium. Knowledge based case studies are both descriptions of methods and algorithms as well as narratives. As narratives, they should have a relevant literary quality. Case studies can involve mass media into their structure and use simulation techniques as well as techniques of entrepreneurial games. Case studies can thus be both dynamic and flexible. Users can personally influence the behaviour and evolution of the process. They can choose their role in the process and can also change it whilst performing the solution. Social, cultural and traditional values are respected during all steps leading to solutions of problems. Ecological aspects and conditions of sustainable development are taken into account when solutions are analysed, recommended and accepted. Case studies present the best practices which enable users to provide benchmarking examples of their own solutions. Data bases of case studies should provide more dimensions containing descriptors which characterize the studies. In the following article, six descriptors will be recommended: domains, objectives, critical success factors, indicators, the best practices explanations and case characteristics. These enable to sort out, categorize, classify and stratify studies in a data base and are helpful in assessing their quality. A vertical structure of the data base facilitates classification and ordering of studies according to subject areas. A horizontal structure of the database enables classification of case studies from the user point of view. &nbsp;
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De Oliveira, Francis J. Baumont, Scott Ferson, and Ronald Dyer. "A Collaborative Decision Support System Framework for Vertical Farming Business Developments." International Journal of Decision Support System Technology 13, no. 1 (2021): 34–66. http://dx.doi.org/10.4018/ijdsst.2021010103.
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The emerging industry of vertical farming (VF) faces three key challenges: standardisation, environmental sustainability, and profitability. High failure rates are costly and can stem from premature business decisions about location choice, pricing strategy, system design, and other critical issues. Improving knowledge transfer and developing adaptable economic analysis for VF is necessary for profitable business models to satisfy investors and policy makers. A review of current horticultural software identifies a need for a decision support system (DSS) that facilitates risk-empowered business planning for vertical farmers. Data from the literature alongside lessons learned from industry practitioners are centralised in the proposed DSS, using imprecise data techniques to accommodate for partial information. The DSS evaluates business sustainability using financial risk assessment. This is necessary for complex/new sectors such as VF with scarce data.
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Fawad Sharif, Sayed Muhammad, Yang Naiding, and Sayed Kifayat Shah. "Restraining knowledge leakage in collaborative projects through HRM." VINE Journal of Information and Knowledge Management Systems 54, no. 3 (2022): 493–509. http://dx.doi.org/10.1108/vjikms-09-2021-0228.
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Purpose Collaborative projects require overlapping skills and capabilities to facilitate knowledge transfer. However, not all kinds of learning are virtuous and some may lead to leakage of commercially valuable knowledge. The purpose of this paper is to explain and restrain leakage of organizational competitive knowledge in collaborative projects. Design/methodology/approach A total of 398 survey questionnaires are collected from project-based firms in Pakistan. We gathered data from horizontal and vertical collaborations. Analysis is conducted with transaction cost economics lens through Process Macro 3.0. Findings Findings suggest that partner’s learning intent (PLI) and distrust positively affect knowledge leakage, whereas human resource management (HRM) practices have negative effect on knowledge leakage. Furthermore, HRM practices negatively moderate the relationship between PLI and knowledge leakage and distrust positively mediates it. Research limitations/implications This study integrates HRM with knowledge management to restrain knowledge leakage and contributes to knowledge management and strategic management. This study examines knowledge leakage in the presence of passive opportunism. Originality/value This study explains how passive opportunism translates into opportunistic behavior. Besides, effectiveness of HRM practices are least surveyed to restrain passive and active opportunisms.
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Eden, Carsten, Friederike Pollmann, and Dirk Olbers. "Numerical Evaluation of Energy Transfers in Internal Gravity Wave Spectra of the Ocean." Journal of Physical Oceanography 49, no. 3 (2019): 737–49. http://dx.doi.org/10.1175/jpo-d-18-0075.1.
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AbstractSpectral energy transfers by internal gravity wave–wave interactions for given empirical energy spectra are evaluated numerically from the kinetic equation that is derived from the assumption of weak interactions. Wave spectrum parameters, such as bandwidth, spectral slope, and Coriolis frequency f, are varied, as is the spectral resolution. In agreement with previous studies, we find in all cases a forward energy cascade toward smaller vertical and horizontal wavelengths. Energy sinks due to the transfers are predominantly at frequencies between 2f and 3f. While the mechanism of the energy transfer differs partly from findings of previous studies, a parameterization for internal wave dissipation—which is used in the fine structure parameterization to estimate dissipation and mixing rates from observations—agrees well with the numerical evaluation of the energy transfers. We also find a dependency of the energy transfers on the spectral slope, offering the possibility to decrease the bias of the fine structure parameterization by improving the knowledge about the spatial variations of this (and other) spectral parameter.
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Guo, Zeng-Yuan, and Xiao-Bo Wu. "Thermal Drag and Critical Heat Flux for Natural Convection of Air in Vertical Parallel Plates." Journal of Heat Transfer 115, no. 1 (1993): 124–29. http://dx.doi.org/10.1115/1.2910637.
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Variable property effects on vertical channel natural convection in air are studied systematically. Numerical solutions of the governing equations show that both the mass flow rate and heat transfer in the channel are not only lower than the constant property results, but also show a nonmonotonic variation with increasing wall temperature or wall heat flux. This phenomenon, which seemingly conflicts with the conventional knowledge, has also been identified by experiments. For a vertical channel with a uniform heat flux boundary condition, the wall may experience a sharp rise in temperature up to damage of the channel if the wall heat flux is greater than the critical heat flux. This implies that the crisis phenomenon (or burnout) may occur in channel natural convection in gas as well as in the boiling process.
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Taki, A. H., and D. L. Loveday. "Surface Convection Coefficients for Building Facades with Vertical Mullion-Type Protrusions." Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 210, no. 2 (1996): 165–76. http://dx.doi.org/10.1243/pime_proc_1996_210_024_02.
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Accurate knowledge of the heat transfer processes that take place at the external surfaces of a building is necessary for thermal modelling and for design purposes. Using a heated test plate fixed at the sixth-floor level to the wall of an eight-storey building, correlations are presented for the external convection coefficient, hc, as a function of wind speeds measured 1 metre from the test surface and 11 metres above the roof in the free stream. The effects of vertical mullion-type protrusions on the value of hc are measured for a range of protrusion heights separated by a fixed spacing, the geometries tested relating to facade configurations which are commonly found in British commercial high-rise buildings. Regression correlations are derived which may be used by designers and thermal modellers for the prediction of hc values for a range of typical building facades with vertical mullion-type protrusions.
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Kotabe, Masaaki, Xavier Martin, and Hiroshi Domoto. "Gaining from vertical partnerships: knowledge transfer, relationship duration, and supplier performance improvement in the U.S. and Japanese automotive industries." Strategic Management Journal 24, no. 4 (2003): 293–316. http://dx.doi.org/10.1002/smj.297.
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María Cubillo‐Pinilla, José. "Export behavior in MNC suppliers networks: the Spanish automotive industry case." International Journal of Commerce and Management 18, no. 2 (2008): 102–22. http://dx.doi.org/10.1108/10569210810895212.
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PurposeThe purpose of this paper is to analyze the transference of managerial skills from the multinational corporation (MNC) to local companies related to the exporting process. In particular, small‐ and medium‐sized companies.Design/methodology/approachA local productive system was selected, involved in the manufacturing of lighting systems for automobiles (main and auxiliary headlamps and rear lighting), and made up of small‐ and medium‐sized companies led by a single MNC which contracts out to the local industry. The analysis includes both suppliers to the multinational as well as non‐suppliers.FindingsThis paper shows that the existence of knowledge transfer of intangible resources and the existence of organizational learning are associated with the nature of the vertical network in a system of suppliers, and a horizontal network with an industrial agglomeration. The volume of knowledge transferred depends on the quality of the channels of communication which exist within the network, the geographical proximity, the frequency of exchange of ideas in the network, and the spatial proximity, among others.Originality/valueThis paper identifies the key factors that influence the performance of the knowledge transfer into MNC supplier's networks.
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Setyaningrum, Idfi, Nur Achadijah, Kartini Kartini, and Ramdan Hidayat. "Crowdfunding Sebagai Penguatan Urban Farming Masyarakat Penjaringansari Surabaya Menuju Ekonomi Hijau." LOSARI: Jurnal Pengabdian Kepada Masyarakat 5, no. 2 (2023): 116–24. http://dx.doi.org/10.53860/losari.v5i2.162.
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To solve the challenges of the urban agriculture system, urban farming is a viable option. RT 02 RW 04, located in Penjaringansari Village, Rungkut Subdistrict, Surabaya City, is a group of urban dwellers attempting to survive in difficult circumstances. Vertical gardening (TOGA) development employing vertical farming methods has been chosen to preserve the environment and health. This activity intends to provide help and information transfer, particularly in the growth of TOGA (family medicinal plants) on restricted land as a more effective agricultural alternative. The aid covers planting media selection, seedling, planting, and harvesting. The Edu_DoIt approach (Education and Do It) is used in this community service project, which means education with direct application. The result of this activity is educational vertical gardening in limited spaces. The harvested produce is sold to the local community, providing not only knowledge but also sustainable economic value. This activity has led RW 04 Penjaringansari Surabaya to be nominated as one of the top 500 neighborhoods in Surabaya, demonstrating the residents’ commitment and hard work in improving their environment
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Zhao, Xiuwen, Hu Yin, and Qian Li. "Data Knowledge Dual-Driven Rate of Penetration Prediction Method for Horizontal Wells." Applied Sciences 13, no. 20 (2023): 11396. http://dx.doi.org/10.3390/app132011396.
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The prediction and optimization of the rate of penetration (ROP) for horizontal wells are more complicated than for vertical wells, but most of the current ROP prediction studies are for vertical wells, which cannot be adapted to the complex drilling characteristics of horizontal wells. To this end, this paper proposes a data knowledge dual-driven horizontal well ROP prediction method. Firstly, the drilling characteristics of horizontal wells are analyzed, showing that the horizontal wells ROP prediction model cannot be modeled using surface measurement data; secondly, based on the analysis of horizontal well drilling characteristics, a physical model-based horizontal well ROP modeling data pre-processing method is proposed by introducing the drag and torque model. Finally, a data knowledge dual-driven horizontal well ROP prediction method is proposed in conjunction with data-driven algorithms. The proposed horizontal well ROP prediction method is applied to the A1~A4 wells in the Sichuan area. Compared with the conventional data-driven ROP prediction method, the prediction accuracy of this method is improved by 30%. The proposed method can provide a basis for the intelligent optimization and management of ROP during the drilling of horizontal wells.
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Benedict, Aileen C., and Zbigniew W. Ras. "Distributed Action-Rule Discovery Based on Attribute Correlation and Vertical Data Partitioning." Applied Sciences 14, no. 3 (2024): 1270. http://dx.doi.org/10.3390/app14031270.
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The paper concerns the problem of action-rule extraction when datasets are large. Such rules can be used to construct a knowledge base in a recommendation system. One of the popular approaches to construct action rules in such cases is to partition the dataset horizontally (personalization) and vertically. Different clustering strategies can be used for this purpose. Action rules extracted from vertical clusters can be combined and used as knowledge discovered from the horizontal clusters of the initial dataset. The number of extracted rules strongly depends on the methods used to complete that task. In this study, we chose a software package called SCARI recently developed by Sikora and his colleagues. It follows a rule-based strategy for action-rule extraction that requires prior extraction of classification rules and generates a relatively small number of rules in comparison to object-based strategies, which discover action rules directly from datasets. Correlation between attributes was used to cluster them. We used an agglomerative strategy to cluster attributes of a dataset and present the results by using a dendrogram. Each level of the dendrogram shows a vertical partition schema for the initial dataset. From all partitions, for each level, action rules are extracted and then concatenated. Their precision, the lightness, and the number of rules are presented and compared. Lightness shows how many action rules can be applied on average for each tuple in a dataset.
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Ren, Ke, Haiyang Gao, Shuqi Niu, et al. "Simulation of polar mesospheric cloud measurements via spaceborne LiDAR and detection efficiency analysis." Applied Optics 63, no. 27 (2024): 7056. http://dx.doi.org/10.1364/ao.525362.
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This study introduces a spaceborne LiDAR model designed for polar mesospheric clouds (PMCs) detection for the first time, to the best of our knowledge. A three-dimensional PMCs field is reconstructed as the detection target of the proposed model. The detector signal is simulated by integrating optical properties, atmospheric radiative transfer calculations, and parameters from both Cloud-Aerosol LiDAR with Orthogonal Polarization (CALIOP) and atmospheric LiDAR (ATLID). A comparative analysis revealed a positive correlation between the detection efficiency and ice water content. CALIOP demonstrated a higher detection efficiency compared to ATLID. Moreover, both CALIOP and ATLID can detect the vertical structure of PMCs.
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Mari, Jean Luc, and Gilles Porel. "The Hydrogeological Experimental Site of Poitiers: Hydrogeological versus geophysical investigations." E3S Web of Conferences 504 (2024): 05003. http://dx.doi.org/10.1051/e3sconf/202450405003.
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The University of Poitiers (France) has a Hydrogeological Experimental Site (HES) built near the Campus for the sole purpose of providing facilities to develop long-term monitoring and experiments investigating the water and mass transfer processes. The site has been investigated by conventional hydrogeological surveys including flow and temperature measurements, pumping and slug tests. The site was also subjected to geophysical investigations both in surface (3D seismic) and in wells (vertical seismic profile (PSV) and acoustic logging). The paper presents an overview of the different field experiments and shows their relative contribution to knowledge of the karstified Dogger limestones of the Poitou threshold.
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Hong, Jiyoung. "Linkage of Knowledge Sharing Platform and SDGs Implementation Mechanism and for North Korean Development Cooperation." Korea Association of International Development and Cooperation 15, no. 1 (2023): 33–50. http://dx.doi.org/10.32580/idcr.2023.15.1.33.
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Purpose: This study seeks to link the knowledge sharing platform to the SDGs implementation mechanism as a way to reduce the gap between theoretical discussions and reality on knowledge sharing with North Korea and improve the effectiveness of knowledge sharing.
 Originality: While the theoretical approach to knowledge sharing has been discussed mainly on the grand discourse on the premise of regime change, the projects implemented in reality were mainly simple technology transfers or short-term one-time economic knowledge transfer. This study has significance as a practical policy study that can narrow the gap between knowledge sharing theory and North Korea's reality and enhance development capacity by seeking ways to connect the knowledge platform to North Korea's SDGs implementation mechanism.
 Methodology: This study confirmed North Korea's perception of knowledge sharing through literature reviews and interviews, and analyzed existing technical assistance and knowledge sharing project data and preceding studies to derive its characteristics. In particular, three closed interviews were conducted and the contents of the closed presentations were referred to. In addition, reports and previous studies of major international organizations related to knowledge sharing were reviewed.
 Result: In order for the transferred technology and knowledge to be accumulated and reproduced in North Korea, horizontal and vertical exchanges between donors in each field and North Korea's internal experts, ministries, and specialized organizations are required, and a knowledge reproduction hub must be formed internally. This paper presents an alternative that the technical committee (TC) of North Korea's SDGs implementation mechanism is a hub institution that integrates sectoral information, knowledge, and project evaluations accumulated through business channels and can be linked to donor knowledge sharing platforms.
 Conclusion and Implication: This study has policy implications as a new approach that can create synergies by strengthening North Korea's development capabilities under various realistic constraints.
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Gadhavi, H., and A. Jayaraman. "Airborne lidar study of the vertical distribution of aerosols over Hyderabad, an urban site in central India, and its implication for radiative forcing calculations." Annales Geophysicae 24, no. 10 (2006): 2461–70. http://dx.doi.org/10.5194/angeo-24-2461-2006.
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Abstract. Use of a compact, low power commercial lidar onboard a small aircraft for aerosol studies is demonstrated. A Micro Pulse Lidar fitted upside down in a Beech Superking aircraft is used to measure the vertical distribution of aerosols in and around Hyderabad, an urban location in the central India. Two sorties were made, one on 17 February 2004 evening hours and the other on 18 February 2004 morning hours for a total flight duration of four hours. Three different algorithms, proposed by Klett (1985), Stephens et al. (2001) and Palm et al. (2002) for deriving the aerosol extinction coefficient profile from lidar data are studied and is shown that the results obtained from the three methods compare within 2%. The result obtained from the airborne lidar is shown more useful to study the aerosol distribution in the free troposphere than that obtained by using the same lidar from ground. Using standard radiative transfer model the aerosol radiative forcing is calculated and is shown that knowledge on the vertical distribution of aerosols is very important to get more realistic values than using model vertical profiles of aerosols. We show that for the same aerosol optical depth, single scattering albedo and asymmetry parameter but for different vertical profiles of aerosol extinction the computed forcing values differ with increasing altitude and improper selection of the vertical profile can even flip the sign of the forcing at tropopause level.
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HARITHASAN, DEEPASHINI, and NUR AQILAH ABD RAZAK. "A Review of the Analysis of Ground Reaction Force among Adults with Lower Limb Problems." Jurnal Sains Kesihatan Malaysia 21, no. 2 (2023): 1–10. http://dx.doi.org/10.17576/jskm-2023-2102-01.
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The ground reaction force (GRF) is the equal opposing load transfer from the body to the ground, also called vertical load transfer. The GRF would produce stress waves transmitted toward the lower extremities during the heel strike of a gait cycle. Too much force imposed on the lower extremities for an extended period will cause harmful effects such as injuries or alterations in gait. This article presents a review of the literature on GRF analysis among adults with lower limb problems where comparisons between healthy and unhealthy subjects were analyzed, focusing on the compensation in each lower limb. A literature search of published articles in Science Direct and PubMed databases from August 2015 to March 2021 was analyzed. The keywords used for the search were (plantar force OR vertical load transfer OR ground reaction force) AND (lower limb OR lower extremities OR leg OR foot) AND (impairment OR problem OR injury). The literature search identified 22 relevant studies which were screened independently by two reviewers. Lower limb problems such as unilateral transfemoral amputation, unilateral transtibial amputation, patellofemoral pain, anterior cruciate ligament injury, knee arthroplasty, knee osteoarthritis, diabetic foot, total hip replacement, pronated foot proved to alter the GRF significantly. Patients used to shift their weight on the opposite leg as compensation, which acts as a pain-free mechanism. This paper has provided sufficient understanding regarding GRF among adults with lower limb problems. The knowledge concerning compensation may help physical therapists implement the appropriate intervention for patients with lower limb problems.
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Johansson, Andreas, Filip Johnsson, and Bengt-Åke Andersson. "The Performance of a Loop Seal in a CFB Boiler." Journal of Energy Resources Technology 128, no. 2 (2006): 135–42. http://dx.doi.org/10.1115/1.2199567.
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High in-bed heat transfer and low corrosive environment imply that the loop seal of a circulating fluidized bed (CFB) boiler is an advantageous location for superheaters. In order to increase the knowledge on the flow pattern and the heat transfer distribution to the tubes within a loop seal, measurements were performed in the loop seal of a 30MW CFB boiler as well as in a 1∕3 scaled-down seal operated according to simplified scaling laws. The scale model measurements show that the solids recirculation flux can be maintained with a substantial decrease of the fluidization flow in the seal compared to that currently used at full load conditions. It was also possible to significantly decrease the fraction of the bottom of the seal that was fluidized without affecting the solids flux through the seal. A gradient in the solids flow were detected in the vertical direction.
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Youssef, Ahmed A., Muthanna H. Al-Dahhan, and Milorad P. Dudukovic. "Bubble Columns with Internals: A Review." International Journal of Chemical Reactor Engineering 11, no. 1 (2013): 169–223. http://dx.doi.org/10.1515/ijcre-2012-0023.
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Abstract Most industrial bubble column reactors require the utilization of internal structures for heat transfer and/or for controlling the flow structures and back mixing in the system. The internals denote all types of innards added to a bubble column, such as perforated plates, baffles, vibrating helical springs, mixers, and heat exchanger tubes. In commercial scale bubble columns, instrumentation probes, down-comers, and risers with heat exchangers are all considered. This review presents the state-of-knowledge of bubble columns with internals. It starts with an introduction. The second section discusses the horizontal internals, and the following section examines the studies involving vertical internals.
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Park, S. S., J. Kim, H. Lee, O. Torres, K. M. Lee, and S. D. Lee. "Utilization of O<sub>4</sub> slant column density to derive aerosol layer height from a spaceborne UV-visible hyperspectral sensor: sensitivity and case study." Atmospheric Chemistry and Physics Discussions 15, no. 6 (2015): 7933–75. http://dx.doi.org/10.5194/acpd-15-7933-2015.
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Abstract. The sensitivities of oxygen-dimer (O4) slant column densities (SCDs) to changes in aerosol layer height are investigated using simulated radiances by a radiative transfer model, Linearized Discrete Ordinate Radiative Transfer (LIDORT), and Differential Optical Absorption Spectroscopy (DOAS) technique. The sensitivities of the O4 SCDs to aerosol types and optical properties are also evaluated and compared. Among the O4 absorption bands at 340, 360, 380, and 477 nm, the O4 absorption band at 477 nm is found to be the most suitable to retrieve the aerosol effective height. However, the O4 SCD at 477 nm is significantly influenced not only by the aerosol layer effective height but also by aerosol vertical profiles, optical properties including single scattering albedo (SSA), aerosol optical depth (AOD), and surface albedo. Overall, the error of the retrieved aerosol effective height is estimated to be 414 m (16.5%), 564 m (22.4%), and 1343 m (52.5%) for absorbing, dust, and non-absorbing aerosol, respectively, assuming knowledge on the aerosol vertical distribution type. Using radiance data from the Ozone Monitoring Instrument (OMI), a new algorithm is developed to derive the aerosol effective height over East Asia after the determination of the aerosol type and AOD from the MODerate resolution Imaging Spectroradiometer (MODIS). The retrieved aerosol effective heights are lower by approximately 300 m (27 %) compared to those obtained from the ground-based LIDAR measurements.
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Xu, Zhangbiao, Botao Zhang, Jinguang Gu, and Feng Gao. "Conditional Knowledge Extraction Using Contextual Information Enhancement." Applied Sciences 13, no. 8 (2023): 4954. http://dx.doi.org/10.3390/app13084954.
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Conditional phrases provide fine-grained domain knowledge in various industries, including medicine, manufacturing, and others. Most existing knowledge extraction research focuses on mining triplets with entities and relations and treats that triplet knowledge as plain facts without considering the conditional modality of such facts. We argue that such approaches are insufficient in building knowledge-based decision support systems in vertical domains, where specific and professional instructions on what facts apply under given circumstances are indispensable. To address this issue, this paper proposes a condition-aware knowledge extraction method using contextual information. In particular, this paper first fine-tunes the pre-training model to leverage a local context enhancement to capture the positional context of conditional phrases; then, a sentence-level context enhancement is used to integrate sentence semantics; finally, the correspondences between conditional phrases and relation triplets are extracted using syntactic attention. Experimental results on public and proprietary datasets show that our model can successfully retrieve conditional phrases with relevant triplets while improving the accuracy of the matching task by 2.68%, compared to the baseline.
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Annisa, Annisa, Ratu Aprillya Wandani, Aisyah Az Zahra, et al. "Empowering Community Waste Management and Sustainable Practices in Paledang Village through the 4P, Vertical Garden, and PHBS Programs." SPEKTA (Jurnal Pengabdian Kepada Masyarakat : Teknologi dan Aplikasi) 5, no. 2 (2024): 123–43. https://doi.org/10.12928/spekta.v5i2.9532.
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Background: The population increase in Paledang has led to waste issues. Limited land forces many residents to use rivers as dumping sites, exacerbated by the distance and uphill terrain of waste disposal facilities. Indifference to cleanliness further sustains this behavior. Land scarcity also limits agricultural activities; Women Farmer Groups (KWT) can only farm on a 3x10 m plot, restricting crop variety and quantity. Economic challenges make it difficult for KWT to afford fertilizers, hindering their planting efforts. Contribution: Through this activity, residents of Palendang can apply their knowledge of waste processing and sorting, engage in gardening in limited spaces, and collaborate independently in the further promoted activities. Method: To address the issues mentioned above, a program called 4P (Education, Sorting, Processing, Utilization) for household waste was designed. Additionally, a vertical garden program was introduced to promote the utilization of narrow and limited spaces using walls and vertical areas. There is also a program aimed at implementing a healthy lifestyle (PHBS). Results: The results of these programs include the transfer of knowledge on waste sorting and processing into fertilizer and ecobricks, the expansion of KWT planting areas onto sloped land, as well as educational handbooks and videos that can be independently used by the community. Conclusion: Feedback from the residents of Paledang indicates that the 4P Program, vertical garden, and PHBS can be considered as alternative solutions to reduce waste and river pollution, address land and fertilizer limitations for KWT, and provide a means for socializing a clean and healthy lifestyle sustainably through the creation of guidebooks and educational videos
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Šoša, Ivan. "Perspective on a Vertical Integration Using Electives—Not with a Bang, but a Whimper." Trends in Higher Education 1, no. 1 (2022): 30–40. http://dx.doi.org/10.3390/higheredu1010003.
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Following the current trends in medical-curriculum development with an important but poorly represented course in forensic medicine is a rather challenging quest. Given the exceptional opportunity of teaching forensic medicine and anatomy, the author’s experience is shared, bearing in mind the harsh academic-workload standards. In that context, the introduction of (clinically oriented/problem-solving-based) curriculum-specific electives (CSEs) is suggested as a means of vertical integration of medical education. Moreover, it may be time to transfer learning (at least in part) to some other environment, possibly a virtual one. The body of knowledge expected to be learned by all students, the core curriculum, should be alleviated, and all too-specific topics should be transferred to the CSE. Keeping the curriculum attractive to clinicians and interesting for students should be an idea aiming for a fully integrated course. Balance of the core curriculum and CSEs aims to bring forth interaction with clinics and bonds with clinicians. In addition, students’ affinities would be met more adequately.