The Power of Giving Feedback and Receiving Feedback in Peer Assessment

Despite well-documented promises of peer assessment, it is still unclear how peer as-sessment works and what contributes to students\u2019 learning gains. In order to identify cognitive processes that lead to learning enhancement, this study examined 41 stu-dents\u2019 responses to online surveys and also their online written interactions when they participated in a peer assessment activity. Data analysis revealed that students were en-gaged in various learning processes in the phases of giving and receiving feedback. While students acknowledged that both phases contributed to their learning, a greater number of students indicated that they perceived more learning benefits from giving feedback rather than receiving feedback. Interpretations and implications were dis-cussed

Learning how to learn: reverse knowledge transfer mechanism in Chinese manufacturing MNEs – in the context of outbound direct investment with aim at knowledge acquisition

JEL classification: F23, L16Knowledge transfer, specifically reverse knowledge transfer (RKT) from invested European company to company from emerging markets, has become well-taken strategy for enhancing company’s competitive advantage and become an important topic for academic research. Since 2010, a trend is confirmed that Chinese multinational enterprises (MNEs) employ outbound direct investment (ODI) as a strategy to acquire knowledge and realize industrial upgrading. Tacit knowledge is found out as most valuable asset to company, thus it is also the most difficult in transferring. This research is carried out with specific focus on tacit knowledge transfer to Chinese investor companies. The result of RKT does not always meet investor-company’s expectation. Built on “knowledge sender-receiver” model and the theory of ba, I try to explore a mechanism for better RKT performance after Chinese MNEs invested in Europe. A combination of qualitative and quantitative methodology is applied in this research. In the end, 10 interviews and 101 questionnaires are collected among employees who work at Chinese MNEs or invested European companies that have actively involved in ODI for knowledge transfer. RKT performance is impacted by complex factors. As an explorative research, we have found that firms’ absorptive capacity, under the environment of high-employeecommitted organizational climate, trust in leadership and other RKT participants, wellestablished formal knowledge transmission channel and similar organizational structure in both Chinese MNEs and invested European companies have major impact on reverse knowledge transfer performance.A transferência de conhecimento, nomeadamente a Transferência Inversa de Conhecimento (TIC) de empresas europeias adquiridas para empresas de economias emergentes, tornou-se numa estratégia adotada para melhorar a vantagem competitiva e é também um tópico importante de pesquisa académica. Desde 2010 que as empresas multinacionais chinesas utilizam o investimento no exterior como uma estratégia de aquisição de conhecimento para efetuar a atualização industrial. O conhecimento tácito é considerado não somente como o ativo mais importante de uma empresa como também o mais difícil de transferir. Esta investigação focaliza-se na transferência do conhecimento tácito das empresas europeias para as empresas chinesas que nelas investiram. O resultado da transferência nem sempre satisfaz as expetativas das empresas investidoras. Baseando-me no modelo “emissor-recebedor de conhecimento” e na teoria do ba, tentei explorar um mecanismo para uma melhor Transferência Inversa de Conhecimento para as multinacionais chinesas que investiram na Europa. Nesta investigação utilizamos uma combinação de métodos qualitativos e quantitativos. Para além de 10 entrevistas recolhemos também 101 questionários de colaboradores de empresas multinacionais que investiram na Europa e que estão envolvidos na transferência inversa de conhecimento. A transferência inversa de conhecimento está sujeita a fatores muito complexos. Nesta investigação exploratória, concluímos que a capacidade de absorção, num ambiente de elevado empenhamento, confiança na liderança e nos outros participantes na TIC, canais de transmissão bem organizados e estruturas organizacionais semelhantes têm um grande impacto da transferência inversa de conhecimento

A 3-dimensional H-adaptive algorithm for groundwater flow and contaminant transport

The simulation of contaminant transport through the subsurface is a very useful way to effectively design mitigation methods for cleanup and prevention of the deterioration of groundwater; The GWADAPT3 code is developed using the finite-element method and mesh adaptation to simulate groundwater flow and contaminant transport. The formulation is based on the equations for conservation of mass, Darcy\u27s law for an anisotropic medium, and the time-dependent species transport equations. Petrov-Galerkin weighting of the advection terms provides numerical stability. An explicit time marching scheme is used to solve the transient equations. By utilizing unstructured adaptive meshing, concentration is accurately resolved; Benchmark cases were used to check the feasibility of GWADAPT3. The results of the test cases from GWADAPT3 were also compared with results from FEFLOW and FEHM; A simulation of the Yucca Mountain Repository site was made using GWADAPT3. The simulation was run on the SGI-02 and the SGI-Cray origin 2000 located at UNLV

Retailer Pricing Strategies for Differentiated Products: The Case of Bagged Salads and Lettuce

Demand and Price Analysis,

Numerical and experimental study of mechanical properties for Laser Metal Deposition (LMD) process part

Laser Metal Deposition (LMD), also called as, Laser Engineered Net Shaping (LENS), Directed Energy Deposition (DED), is a typical Additive Manufacturing (AM) technology, is used for advanced free-form fabrication. It creates parts by directly melting materials and depositing them on the workpiece layer by layer. In this process, the metal powder or fiber is melted within the melting pool by laser beam or electron beam and quickly solidifies to the deposited layer. LMD technology shows great advantages over traditional manufacturing on complex structure fabrication, including high building rates, easy material replacement and reduced material waste. These merits make the wide application of this technology in industry, such as new components fabrication and parts repairing manufacturing, coatings, rapid prototyping, tooling, repair, etc. The proposed project is to investigate the key parameters to improve the mechanical properties of different fabricate parts in LMD manufacturing by combined approach of experimental analysis and FEA simulation method. Therefore, several sets of experiments will be designed to reveal the processing parameters on properties of deposited components in the method of LMD process. The microstructure, Vickers hardness, phase identification, tensile properties of LMD parts are measured to investigate the fabricated qualities. The features of thermal stress and deformation involved in the DMD process were predicted by the FEA model. This work helps to fully study the thermal analysis to analyze the temperature profile, cooling rate and temperature gradients on microstructure and residual stress, which further influences the engineered mechanical properties of build parts --Abstract, page iv