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Aug 13, 2024

Bidding decision optimization based on integer programming method - a case study of virtual company of Ewood Technology Company

The report delves into the challenges faced by a Communication Base Station Equipment company. In January, the company encountered a financial crisis due to a lack of strategic consideration in bid management, particularly in terms of the number and geographical spread of tenders, leading to a negative profit margin. To address this, the report adopts integer programming as a tool to optimize profits for both January and February. This approach includes modeling various variables such as monthly factory upgrades, delivery schedules, and procurement volumes. The parameters set for the model encompass decisions on bids, selections of factory delivery options, and quantities of materials to be procured. The primary objective is to maximize the total profit by the end of February. There are specific recommendations, such as choosing four bids in January and seven in February, strategically distributed across two manufacturing facilities. Additionally, the report underscores the importance of managing total production time for all tenders to prevent negative impacts on subsequent tender processes and potential breaches of contracts.

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Jan 9, 2024

The Impact of Smart City Policies on Urban Technological Innovation Capacity: A Case Study of the Pearl River Delta Region Based on the Double Difference Method

With the acceleration of the global urbanization process, smart city policies are playing an increasingly important role in urban planning and management. The purpose of this paper is to explore the impact of smart city policy on the innovation ability of city science and technology, and to analyze the policy by using the method of difference-difference. First of all, this paper reviews the development of smart city policy and its implementation in different regions of China. Secondly, this paper systematically studies the impact of smart city policies on urban science and technology innovation through the difference-difference method and empirical research. The study found that smart city policies can significantly promote technological innovation activities in cities, improve innovation capacity, and promote economic growth. Finally, the paper explores the potential impact of smart city policies on urban sustainable development, as well as some possible policy rec_x005fommendations. To sum up, smart city policies play a key role in shaping a city’s scientific and technological innovation capacity and are of great significance for future urban development. The findings of this study can help policymakers better understand the impact of smart city policies to develop more targeted and effective policy measures to promote the integration of urban science and technology innovation with sustainable development.

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Mar 18, 2024

Decomposition approach for examining effects of logistic performance on exports: A case study of Vietnam

The study evaluates to what extent logistics performance and its components impact Vietnam’s bilateral export value. The augmented Gravity model is applied on panel data in the period from 2010 to 2018. Logistics efficiency is measured by Logistic performance index (LPI) and its sub-indices developed by the World Bank. A variety of diagnostic tests and estimation methods are employed to ensure the stability of the results. The main findings confirm that all explanatory variables demonstrate the expected signs, and aggregate logistics performance and its sub-indices have positive impacts on Vietnam’s export flows, with the magnitude of logistics impacts is greater than other factors in the research model. Among LPI components of Vietnam, Ease of arranging shipments index is the most influential factor on exports, followed by Infrastructure, Timeliness, and Quality of logistics services. These export’s effects are also identified by partners’ LPI indicators namely Quality of logistics services, Customs, Infrastructure, and Tracking and tracing.

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Nov 19, 2024

Study on the barriers and breakthroughs of resilience building in aging Urban communities from the perspective of risk management: A case study of Jin Guang Men community in Xi’an

The continuous escalation of social risks has exacerbated the challenges faced by aging urban communities. In this context, resilience building emerges as a critical approach, offering new perspectives and innovative solutions to address these issues. This paper applies the theories of risk society and resilience governance to establish an analytical framework for resilience governance, specifically examining the current status of resilience construction within the Jin Guang Men community in Xi’an. The findings indicate that resilience building within these aging urban communities is hindered by issues such as weak grassroots governance, deficient repair mechanisms, inadequate infrastructure, and a slow pace of information technology adoption. To effectively manage social risks, it is imperative to strengthen party leadership in governance, enhance community self-repair capacities, upgrade infrastructure, and accelerate the application of information technology. These measures are essential for bolstering the risk management capabilities of aging urban communities.

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Jan 9, 2024

An Empirical Investigation into the Relationship Between Positive Traits Among Adolescents and Academic Achievement: A Case Study of T City in China

This study explores the association between adolescents’ academic achievement and various positive traits, including learning interest, emotional regulation, learning habits, and interpersonal relationships. A comprehensive survey was conducted among 1465 fifth_x005fgrade students (53% male, 47% female) from 30 primary schools and 1243 ninth-grade students (52.5% male, 47.5% female) from 25 junior schools in T City, China, as part of the Educational Quality Monitoring Program. The findings indicate a positive predictive relationship between adolescents’ positive traits and academic achievement. However, it is noteworthy that these positive traits demonstrate a negative correlation with the development of test anxiety and academic burden, potentially exerting a negative impact on students’ academic performance. Furthermore, the results reveal a significant age difference in the manifestation of positive qualities, with younger students exhibiting a higher positive developmental level compared to their elder counterparts. Additionally, each positive quality exhibits varying effects on academic achievement, displaying differences across categories and subjects. Importantly, the correlation between negative developmental outcomes and academic achievement is not exclusively negative; there is a likelihood of a positive association.

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