The meliorization process of urban green spaces: Integrating landsense creation for sustainable development

Urban green spaces play a crucial role in enhancing the well-being of urban residents and promoting sustainable urban development. However, optimizing the planning and management of urban green spaces to meet residents' diverse needs and preferences poses a considerable challenge. This study addresses this challenge by employing a landsenses ecology approach, integrating residents' perspectives into the planning and design of urban green spaces. Starting from human needs, a conceptual framework for the meliorization model of urban green spaces is constructed, grounded in the principles of landsense creation and incorporating a “design-simulation-management” process. Through this model, the mechanisms driving the meliorization process are explored. This study contributes to improving the meliorization process in landsenses ecology, while expanding the theoretical framework and methodology of landscape ecology. By emphasizing the dynamic interactions between land planning, construction, and residents' experiences, this study provides valuable insights into the dynamic development of urban green spaces, facilitating the implementation of sustainable urban development strategies and practices.

Lifetime Evaluating and the Effects of Operation Conditions on Automotive Fuel Cells

Lifetime isone of the important indicators of automotive proton exchange membrane fuel cells. People used to evaluate the lifetime of vehicular fuel cells by laboratory tests or road tests that usually take thousands hours even years. In order to achieve a rapid evaluation technique and to seek lifetime extension methods, a lifetime calculation formation was drawn out in consideration of the vehicle driving cycle and the working condition factors. Bench experiments were individually carried out on two fuel-cell stacks same as ones applied on vehicle, and the performance decay rates of the two stacks were obtained under four operation conditions of changing load cycle, start-stop cycle, idling and heavy load. As a result, the predicted lifetimes rather conform to the actual running status in road test. And the research on the fuel cell performance decay rates under different load conditions was also done. Consequently, an unexpected finding was discovered that operating under micro-current has an effect on recovering fuel cell performance. The vehicle fuel cell rapid assessment method only requires four laboratory tests of driving cycle, load cycle, idle operating conditions and heavy load conditions, and the whole process merely lasts less than 250 h. These experimental results can be used to predict the vehicular fuel cell lifetimes on various utility models or driving cycles, therefore to optimize the application model to prolong the fuel cell lifetime. Actually in the experiment, it has already been proved successfully that the fuel cell lifetime could be extended from 1 100 h to 2 600 h by optimizing operating mode. The quick evaluation method is helpful to develop extended life fuel cell and to deplete fuel cell for a longer time.

The Methodology of Melioration and Restoration of the Largest Dumps of the Most Coal Basin

Reclamations of dumps in the Most Basin that is located in the North Bohemia consist of restoration of extremely unfavourable properties of rocks that are poured down onto the dump body. These rocks come from the surface layer and the layer where coal bed is present. Sands, clay sands and kaolin (illitic clays) are the main components that occur in the material. Other components are predominantly organic (coal) mass, siderite and pyrite. This report briefly summarizes the history and present of ore, non-metallic and coal mining in the region and addresses in detail the issue of moderating the consequences of mining, which is one of the principal activities of the Research Institute for Brown Coal, j.s.c. in Most. The concept of landscape reclamation in the largest dumps after mining ends, the technical reclamation methodology and the well considered use of fertilizable soil are main results presented in this article.

Melior宣布对Goondicum项目营运进行调整

Melior公司的重要项目——澳大利亚Goondicum矿山在经过对原有加工设备进行的长达7个月,耗资760万澳元的升级改造后,Goondicum矿山在2015年4月7日开始试运行。截止2015年6月30日,该项目共生产了1.5万t钛铁矿、2 020 t磷灰石。目前,该项目的产量大约是设计产能的50%,该矿山的产能是20万t/a,这与6个月的过渡期是一致的。2015年6月23日,项目首批生产的6 600 t钛铁矿已经发货,亚洲相关客户的订单将在下一个季度开始生产。