A Review on AWS - Cloud Computing Technology

Cloud computing is something simple we can define as maintaining data centers and data servers and also u can access technology services by computing power, storage, and database using cloud computing technology AWS(Amazon Web Services). It is an emerged model which is already popular among almost all enterprises. It provides us the concept of ondemand services where we are using and scaling cloud resources on demand and as per demand respectively. AWS Cloud computing is a cost-effective model. The major concern in this model is Security and Storage in the cloud. This is one of the major reasons many enterprises of choosing AWS cloud computing. This paper provides a review of security research in the field of cloud security and storage services of the AWS cloud platform. After security and storage, we have presented the working of AWS (Amazon Web Service) cloud computing. AWS is the most trusted provider of cloud computing which not only provides excellent cloud security but also provides excellent cloud storage services. The main aim of this paper is to make cloud computing storage and security a core operation and not an add-on operation. As per the increase in the Service provider and related companies, this AWS Cloud Platform plays a vital role in service industries by giving its best web services, so, therefore, choosing the cloud service providers wisely is the basic need of the industry. Therefore we are going to see how AWS fulfills all these specific needs. Keywords: Trusted Computing, AWS, Information-Centric Security, Cloud Storage, S3, EC2, Cloud Computing

Did Industrial Centralization Strategy in Shanghai’s Suburbs Lead to Economic Growth?

Industrial centralization is an important policy choice in the industrial economy era. The purpose of this paper is to evaluate the overall performance and the influential effects of the industrial centralization strategy in the suburbs of Shanghai. The results show that (1) the strategy of industrial concentration in the suburbs of Shanghai effectively promoted economic growth; (2) on different spatial scales, there are visible differences in the impact of industrial concentration on the performance of industrial land; (3) industrial concentration has significantly improved industrial energy utilization efficiency; and (4) industrial concentration has narrowed the gap of economic development among the suburbs, but it has not resulted in a corresponding narrowing of the urban-rural gap. The main recommendations are to pay more attention to the high-end and centralization of urban industries in the central city, promote the interactive development of manufacturing and service industries as well as the integrated development of industry and city, moderately control the scale and speed of industrial suburbanization and residential suburbanization, promote the transformation of the traditional industrial land into “industry + R&D + business and office + exhibition” and further narrow the income gap between and within regions.

Impact of Workplace on the Risk of Severe COVID-19

Indiscriminate regional lockdowns aim to prevent the coronavirus disease 2019 (COVID-19) infection by restricting the movement of people; however, this comes with psychological, social, and economic costs. Measures are needed that complement lockdowns and reduce adverse effects. Epidemiological studies, to date, have identified high-risk populations, but not workplaces appropriate for closure. This study was conducted to provide evidence-based measures that used exact and reliable follow-up data of the PCR-positive COVID-19 cases to complement lockdowns. The data are not subjected to selection or follow-up biases, since the Japanese government, by law, must register and follow all the PCR-positive cases until either recovery or death. Direct customer exposure may affect the quantity of viral inoculum received, which, in turn, may affect the risk of the severity of disease at infection. Therefore, the professions of the cases were grouped according to their frequency of direct customer exposure (FDCE) based on subjective observations, which resulted in five workplaces; hospital, school, food service, outdoor service, and indoor office being identified. Analyzing the follow-up data, we obtained precise estimates for the risk of severe disease, defined as intensive care unit (ICU) hospitalization or death, for the workplaces adjusted for age, sex, family status, and comorbidity. Major findings are as follows: hospital and school are the lowest risk, food and outdoor services are, despite higher FDCE, safer than indoor office. Unemployed and unclear are the highest risk, despite low FDCE. These results suggest the following workplace-specific measures complementing the lockdown: school should not be closed and indiscriminate closing of food and outdoor service industries should be avoided, since it would be more effective to reinforce their efforts to promote adherence to public health guidelines among students and customers. These actions would also reduce the adverse effects of the lockdown. This study is the first to address the causality between the workplaces and severe disease. We introduce FDCE and adherence to public health guidelines (APHGs) to associate the workplace characteristics with the risk of COVID-19 severity, which provided the basis for the measures complementing lockdowns.

Hand-to-Mouth Survival in an Extended Pandemic

In a time of a pandemic, people withdraw in order to social distance to protect themselves against infection. The industries that rely on people interacting in close proximity—the service industries, air travel, and other fields—lose their customers almost overnight, and then they lose their employees. Money and jobs become much more scarce almost simultaneously. Meanwhile, saddled with debt and scarce emergency savings, with a pandemic dragging on now for over a year, with dysfunctional government and little stimulus, many Americans are struggling with debt, homelessness, hunger, pressured social relationships, and other challenges. This work explores some available and recent peer-to-peer personal finance advice on the Social Web (in English) on several social platforms to assess their applicability in a challenging historical moment.

Research on the economic development impact of earthquake disaster in China

As one of the areas with frequent earthquake disasters, China’s social stability and sustained and healthy economic development have been profoundly affected for a long time. Based on the two-way fixed effect model and a series of deterministic indicators of economic development, including education level, economic development, financial development, fixed asset investment and permanent population, this paper designs a standard regression equation for estimating growth and uses time series panel data to analyze the impact of earthquake disasters on China’s economic development. The research results show that the earthquake disaster has an insignificant positive impact on China’s GDP. From the point of view of control variables, education level and financial development level have a positive effect on economic development as a whole, but there are certain differences in the degree of influence. The degree of trade openness has a significant impact on GDP, industry and service industries. Moreover, it has a negative impact on agricultural development.

Analysis of Selected Service Industries in Terms of the Use of Photovoltaics before and during the COVID-19 Pandemic

Previous analyses of the PV market (and the impact of the pandemic on it) have focused on the market as a whole. The literature does not contain analyses of selected services sectors (e.g., catering, hotel services) in terms of the use of photovoltaics. There are no studies that would show in which segments the demand profile for electricity most closely matches the production from photovoltaic installations (not to mention the impact of the pandemic). The authors analyzed selected service sectors (catering and hotel) in terms of the use of photovoltaics before and during the COVID-19 pandemic. The paper proposes a comparative methodology for the use of photovoltaics for self-consumption, including statistical analyses and calculations of the self-consumption index for representatives of various selected services sectors. The highest value of the self-consumption ratio at the level of 52% was shown for cafes and restaurants (during the pandemic). Surprisingly, in the pandemic, the self-consumption rate increased for restaurants and cafes for the same size of installations (compared to pre-pandemic times).

Fundamental Aspects, Mechanical Behaviour and Mathematical Understanding of Friction Spot Stir Welds: A Review

The energy-saving and environmental conservation are increasingly important issues in manufacturing and service industries worldwide that have received considerable attention in recent years. Most importantly, this process eliminates the grain solidification errors generated by the standard fusion process. Thus, in this papers types and methods of stir welding will be explained and discussed accordingly . Friction stir spot welding is a tunable method as it allows an effective control and amendment of processing parameters using refill and powder-assisted schemes that can solve the problem of the keyhole and mechanical weaknesses in the joining of light metals processed by conventional Friction stir spot welding. This comprehensive review mainly focuses on the fundamental aspects of Friction stir spot welding processes and their impacts on the microstructural features and mechanical performance and mathematical understanding of various similar and dissimilar systems. To conclude, the challenges in further modification of Friction stir spot welding and future outlooks in different engineering applications are presented.

Spatio-Temporal Evolution Characteristics and Influencing Factors of Urban Service-Industry Land in China

The level of service-industry development has become an important symbol of the competitiveness and influence of cities. The study of the dynamic evolution characteristics and patterns of urban service-industry land use, the driving factors and their interactions is helpful to provide a basis for decision making in policy design and land use planning for the development of service economies. In this study we have conducted an empirical study of China, based on the methods of spatial cold- and hot-spot analysis, Tapio’s decoupling model, and GeoDetector. We found that: (1) the scales of land use, output efficiencies and development intensities of service-industries are increasing with a trend that takes the form of a “J”, “U” and “inverted U”, respectively; (2) Spatial variabilities and agglomerations are significant, with a stable spatial pattern of the scale of service-industry land use, and a gradient in the distribution of cold- and hot-spots. The dominant spatial units of output efficiency and development intensity have changed from low and lower to high and higher, and the cold- and hot-spots gather in clusters; (3) The development of service-industries is highly dependent on the input of land-resources, and only a few provinces are in a state of strong decoupling, while most are in a state of weak decoupling, with quite a few still in a state of expansive coupling, expansive negative decoupling, or even strong negative decoupling; (4) There are many driving factors for land use changes in the service-industry, with increasingly complicated and diversified relationships between each other, ranked in intensity as the scale effect > informatization > globalization > industrialization > urbanization.

How Does Mobile Workplace Stress Affect Employee Innovative Behavior? The Role of Work–Family Conflict and Employee Engagement

The new wave of interest in mobile workplaces is profoundly changing the internal ecology of Chinese companies and creating new stress for employees. To investigate the mechanisms of mobile workplace stress on employee innovative behavior and the role of work–family conflict and employee engagement, we collected 426 valid samples from married male employees in the software and information service industries. The results show that mobile workplace stress has a significant negative effect on employee innovative behavior. In contrast, it has a significant positive effect on work–family conflict and employee engagement. In addition, work–family conflict partially mediates the relationship between mobile workplace stress and employee innovative behavior; employee engagement produces the suppressing effects. The chain intermediary effect of work–family conflict and employee engagement between the mobile workplace and employee innovative behavior is present. When we focus on the high performance of the mobile workplace, we should also pay attention to its impact on the company’s ability for innovation.

Comparative performance analysis of the marina and charter service industries in Croatia

Marina and charter industry represent the two basic segments of nautical tourism sector, one of the key elements of tourism development in the countries of the Mediterranean circle. With the advent of ever more ambiguous business environment driven by global health hazards, the emergence of next technological revolution and global competition, insight into the antecedents of competitiveness of companies in the nautical tourism sector in an important topic for organizations who want to survive and grow. The goal of this paper is comparison of the fundamental features of these two interconnected industries. The marina industry, observed through the financial indicators, shows attractiveness and stability. Regardless of the marina category, the success of its operations proved to be stable even in crisis market conditions. On the other hand, the charter industry, that complements the value proposition of the marina industry, shows lower level of robustness in times of crisis. The contribution of the paper is twofold. Firstly, for the purpose of the comparison of these two industries we present their basic indicators, and argue that the dynamic connection of the charter and marina industries opens possibilities to achieve higher level of competitiveness in both businesses. Also, since the available data on both industries is scarce, the paper introduces a system of data estimates, as well as system of experiential forecasting which can be used in different markets where similar limitations can be observed.