Beautiful renewable energy

Impact ◽  
2019 ◽  
Vol 2019 (10) ◽  
pp. 39-41
Author(s):  
Hinako Kawakami ◽  
Yasumitsu Matsuo

As the world's consumption of non-renewable fuels continues to grow, so do the associated problems. Coal, gas and nuclear are all on the rise with each presenting significant environmental problems. The fossil fuels contribute to global warming through CO2 emissions as well as polluting the environment through particulates and waste products. Nuclear energy, whilst cleaner, still produces significant and long-term dangerous waste products. In addition, the raw materials are finite and will be exhausted sometime this century. The battle to develop effective clean alternatives is one of the key fights that will come to define the 21st century. The process will require considerable innovation and greater effort by business and state to improve the situation. Many researchers are working towards a myriad of different solutions that, together, could form the basis for re-gearing the global economy towards the use of renewable and sustainable resources and fuels. One such alternative is the fuel cell and variations of this. A fuel cell harnesses the energy released when hydrogen combines with oxygen to form water to produce electricity. Its inputs are cheap and readily available whilst its outputs are completely clean. In order to effectively assimilate new technologies such as these, it is necessary to consider how this technology can be applied and integrated into modern life. Doing so will allow new technologies to be adopted and employed far quicker after development. Two researchers from Setsunan University, Japan are working together to make cheap and renewable fuel cells that can be integrated directly into new, green architecture.

2015 ◽  
Vol 809-810 ◽  
pp. 646-651
Author(s):  
Romeo Cioară ◽  
Valentin Gabriel Szekely

In contextual evolution of the global economy and new technologies, quality, competitiveness, and cost engage companies to focus on continuous improvement and innovation. This approach is highly visible in the bearing industry, due to the emergence and improvement of existing and new types of bearings.The authors of the paper are engaged in a long-term research, which aims to improve the performance of heavy bearings, including identification of new constructive solution. The study is focused on the characteristics and constructive structure of the bearings cages in discussion.In this context, it is logical that the research focuses upon known bearings cages that are currently used [1], as well as unknown or unapplied constructive solutions which are the subject of patents.The critical analysis of various constructive cage solutions for bearings, intended or not for heavy bearings, is a valuable source of inspiration and information towards identification of constructive elements and characteristics useful to develop new technical solutions, by applying integrations, combinations, innovations and development processes [2].In the presented paper several patents are analyzed critically [3, 4, 5], in terms of constructive solutions, manufacturing complexity and presumptive operational energy consumption.


2011 ◽  
Vol 233-235 ◽  
pp. 1427-1430
Author(s):  
Yu Shen ◽  
Hai Dong Zhang ◽  
Xu Xu Zheng ◽  
Xian Ming Zhang ◽  
Jin Song Guo ◽  
...  

Fuel ethanol converted from biomass is a reliable substitute for fossil fuels, and lays people’s hope on the sustainable development in the fields of energy and climate. The limitation in source of raw materials and production cost are bottlenecks which restrain the wide use of fuel ethanol. This article makes an overview of the current research progress in the new technologies from the directions in the exploiting of raw materials and energy saving and polluted water emission reduction in the production process of fuel ethanol, and analyzes the potential application prospects and advantages of various new technologies.


Author(s):  
Michael Lankin ◽  
Yanhai Du ◽  
Caine Finnerty

Silica is a well-known impurity in solid oxide fuel cell raw materials, namely NiO and yttria-stabilized zirconia (YSZ). At elevated temperatures silica will migrate to the grain boundaries, form insulating siliceous phases, and lead to a decrease in the ionic conductivity of the electrolyte. Furthermore, silica impurities have been shown to damage the anode/electrolyte interface, such that an overall decrease in cell performance and long-term stability is observed. Despite the fact that silica is ubiquitous in commercial-grade raw materials and can be incorporated from several extrinsic sources, it has negative effects on the solid oxide fuel cell, such that any further contamination should be avoided to prevent performance degradation and eventual cell failure. This paper reviews and outlines the sources and effects of silica on the solid oxide fuel cell, and attempts to determine a guideline for acceptable levels of silica contamination.


THE BULLETIN ◽  
2021 ◽  
Vol 389 (1) ◽  
pp. 231-237
Author(s):  
А. Nurgaliyeva ◽  
А. Zeinullina ◽  
G. Nurbayeva ◽  
B. Serekbayeva ◽  
G. Bolsynbekova

In the new global reality, the most appropriate model for long-term development of Kazakhstan is the industrial and innovative model. The need to implement industrial and innovative development is dictated by the challenges of the XXI century, the economic imperatives of globalization. Lagging indicators such as labor productivity, which today is only 39 thousand US dollars, while this indicator in the OECD countries is on average more than 2.5 times higher. The share of manufacturing in GDP in 2017 is only 12%, while this figure in developed countries such as China is about more than 35%. In order to enter the top 30 developed countries, further development of the industrial and innovative model is required. It is no accident that in his last two messages, the President focuses on the development of new technologies, new models of digitalization, the need to accelerate the introduction of more complex products, increase the technological level, and increase the share of exports. The development of Kazakhstan's economy requires qualitative and structural changes in the economy and a shift away from its dependence on raw materials, an increase in the share of manufacturing, high-tech industries and the expansion of exports of finished products. The formation of a competitive economy requires huge financial resources that will be directed to innovative industrialization on a long-term basis. The new global reality has led to a reduction in the ability to attract funding. Lack of internal sources of financing, reduction of external sources of financing of the banking system of Kazakhstan, insufficient development of the Kazakhstan stock market significantly limit the ability to meet the needs of the real sector of the economy in financial resources.


2020 ◽  
Vol 174 ◽  
pp. 04021
Author(s):  
Elena Kazantseva ◽  
Natalya Osokina ◽  
Galina Chistyakova

In recent decades, raw materials companies occupy leading positions in world ratings, largely determining the economic situation of their home countries. The rapid growth of digital companies’ position in the global economy does not detract from the role of raw materials production, which develops using modern technologies and adheres to the principles of sustainable development. The paper analyzes the position of leading foreign and domestic raw materials companies in the world rankings; examines the features of mining regions functioning, in particular, coal mining regions (on the example of the Kemerovo region, Western Siberia, Russia), and the prospects for their long-term development. Proposals for long-term development of coal mining regions are formulated.


Author(s):  
R. Todd Stephens

This chapter examines the elements of the new Web 2.0 technology base and reviews the lessons learned when implementing these technologies. Collaborative applications have made enormous inroads into the enterprise and bring unprecedented speed and transparency to communications. Researchers and practitioners alike are focusing on how collaborative applications can replace the one-way communications inherent to Intranet sites. This chapter is intended for individuals who are looking toward the possibility of integrating these new technologies into the core communication medium. Unfortunately, there are still large barriers such as politics, turf battles, integration, and poor usability with the current product set. A company’s ability to manage information effectively over its life cycle, including sensing, collecting, organizing, processing, and maintaining information, is crucial to the long term success in a global economy. The success or failure of this integration may very well create or lose a competitive advantage for the enterprise. What is missing is a framework or roadmap in which organizations can plan out their execution of We 2.0 deployment.


2020 ◽  
pp. 494-503

Due to globalization, all industrial sectors are mutually connected, which means that the sectors are part of the global economy, influenced by a similar trend. Mining relates to various industrial sectors. The base of mineral raw materials provides in the frame of certain regions the value that is possible to evaluate with optimal use complexly, and by this way profit for the owner, state and mining company, as well as single region is created. The goal of the presented contribution is to search for a position of raw material using in industries and its trend from the view of growth rate, in connection to the growth of other industries with the aim to provide long-term prosperity and contribution of industries to the national economy. Research had been done through growth rate of sales and revenues and one-way analysis of sales trend in analyzed period 2009-2018. The research is supported by initial decline analysis, orientated to the evaluation of positive and negatives of raw material using generally. According to the internal analysis, there are selected sectors directly connected to the mining industry. The results show there is the stable or improving character of the mining industry, which is very similar to industrial production, having influence with other industrial sectors. There is a recorded trend in the growth of individual industries, which varies significantly. The results of the contribution are useful in providing long-term prosperity and contribution of industries to the national economy, providing sustainable economic growth. The contribution is limited to the evaluation of industries growth from the view of sales and revenues, and future research can be extended to the evaluation from the view of market share, etc. Future research can also be extended to other macro-economic indicators, influencing the competitiveness of the mining industry and its sustainable tendency.


2021 ◽  
Vol 21 (4) ◽  
pp. 174-191
Author(s):  
Anastasiya Sevastyanova ◽  
Victor Yatsenko

Numerous studies demonstrate that the goals of economic growth frequently take precedence over addressing social problems and problems of environmental degradation. The manifestations of this imbalance differ from country to country depending on the stage of development of the productive forces, and institutional framework that ensures the creation and adoption of new practices and approaches to exploitation of natural resources. This problem is entirely inherent into the economies of resource regions. The paper aims to examine the impact of the extraction of raw materials demanded by the national economy on the problems and prospects of the long-term sustainable development of northern Russian localities. Methodologically, the research rests on the theory of inclusive development and evolutionary economic geography. The comparative analysis of the formation of local budgets and dynamics of the Okrug in Russia reveals that the degree of their financial sufficiency depends insignificantly on the scales and dynamics of raw material production. The legislation on assigning revenues to local budgets takes into account the specifics of the northern oiland gas-producing territories rather poorly. The financial capabilities of local communities do not allow handling existing ecological problems. The growth in hydrocarbon production in current institutional conditions does not guarantee sustainable long-term development for such territories. Addressing environmental issues requires instituting serious changes at federal and regional levels, including making the alterations to the articles of the Tax Code of the Russian Federation. It is also crucially important to give financial incentives to introduce new technologies, provide research grants, lower labour taxes, and raise taxes on the use of natural resources.


2020 ◽  
Vol 13 (1) ◽  
pp. 148-159
Author(s):  
N.L. Orlova ◽  

The author considers the factors and difficulties of involving raw materials in international trade at the present stage. The necessity of developing new approaches to assessing the possibilities and effects of including resources in the global turnover against the backdrop of globalization challenges is shown. It is noted that the transformation of the model of world economic development reinforces attention to the resource supply factor of the modern world economy and helps to increase its role in the field of interaction of economic and political power vectors. It is determined that the technology of resource management in the global economy provides for the optimization of the processes of forming the resource base and improving the management of resource flows. It has been revealed that the problem of finding new approaches to improving the management of resource 159 МИРОВАЯ ЭКОНОМИКА И МЕЖДУНАРОДНЫЙ ОПЫТ flows, especially raw materials, in the modern world economy is becoming particularly relevant against the background of the emergence of new technologies in resource extraction, the introduction of innovations in organizing the delivery of resources to their places of consumption and reducing the efficiency of existing business models. Some aspects of the application of soft calculations and measurements in the management of raw resource flows are presented. The characteristic is given to the system of socio-economic ratings of countries. The ratings that evaluate the raw material resource flows are considered. Combined ratings are proposed for use in the management of raw material resource flows. It is noted that the competitive advantages of the economies of countries, integration associations, individual areas of production in modern conditions largely depend on their involvement in the processes of international specialization. It is posed the problem of effective countries supplying raw materials for participation in value chains. Particular attention is paid to identifying opportunities for improving the activities of Russian companies in world commodity markets.


2017 ◽  
Vol 262 ◽  
pp. 596-600
Author(s):  
Romy Auerbach ◽  
Katrin Bokelmann ◽  
Stefan Ratering ◽  
Rudolf Stauber ◽  
Sylvia Schnell ◽  
...  

Due to the advancing development of new technologies and consumer goods the future demand for raw materials will rise significantly. The finite primary raw materials will not be able to meet the demand quickly enough or the prices for the extraction will rise enormously. In consequence, a recycling of process waste and end of life products will be in future an essential step in order to meet the demand. Y2O3:Eu fluorescent phosphor was identified as the main composition in phosphor waste fractions and was chemical leached and bioleached with A. ferrooxidans. A selective leaching towards Y in bioleaching batches was observed and already after four days 100 % could be leached. The bioleaching with the bacteria showed no significant differences in comparison to the abiotic control without microorganism. Initial Fe3+ in the medium was identified as the driving force and lower extraction efficiencies of the biotic batches were attributed to a biosorption process and to high pH-values. This work showed that the extraction of yttrium out of waste products with high Y2O3:Eu content by chemical leaching with Fe-addition under mild conditions offers a good perspective to support the material demand of Y in the future growing market. In comparison to bioleaching of other fluorescent phosphors and waste fractions leaching efficiencies up to 100% were achieved and it was identified that the microorganisms can positively influence the leaching effect. Furthermore, it became obvious that the leaching behavior of microorganisms was highly dependent on the sample material. As relevant parameters mainly the structural composition of the phosphor was identified.


Sign in / Sign up

Export Citation Format

Share Document