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排序方式: 共有283条查询结果,搜索用时 31 毫秒
131.
Kaymaz Çağlar Kıvanç Birinci Salih Kızılkan Yusuf 《Environment, Development and Sustainability》2022,24(3):3013-3013
Environment, Development and Sustainability - 相似文献
132.
Yasin Şöhret Olcay Kıncay T. Hikmet Karakoç 《International Journal of Green Energy》2018,15(3):145-150
Emitted exhaust gases from aircraft are an issue of concern from an environmental perspective. Many research studies have been conducted aiming to reduce aircraft emissions in the hope of preventing any further increase in climate change and global warming. Within this scope, the present study intends to present a methodology for an optimum gas turbine engine selection with regard to emitted exhaust gases. The methodology focuses on five different turbofan engines which constitute the power unit of a commonly used passenger aircraft. At the end of the study, it is considered to be impossible to achieve a minimum exhaust emission for each gas. For this reason, it is considered to be better to optimize the engine with the aim of reducing nitrogen oxide emissions or other exhaust emissions. 相似文献
133.
İpek Süleyman Diri Abdulsameh Mermerdaş Kasım 《Journal of Material Cycles and Waste Management》2021,23(1):272-287
Journal of Material Cycles and Waste Management - The main target of this study is to experimentally investigate the possibility of recycling of low-density polyethylene (LDPE) pellets as aggregate... 相似文献
134.
135.
This study focuses on the ecological design between traditional Diyarbak?r houses and their physical environment (topography and climate) and structural environment (building form, spatial organization, material, landscape and planting, and technical infrastructure). The basic principle was to identify the criteria that would use natural energy sources and provide the most benefit to the inhabitants. The influence of different seasons on thermal perception was investigated. The average temperature differences between the outdoor and indoor environment of the houses were 7 °C in winter, 6 °C in summer and ±2 °C in spring and autumn. Consequently, this paper discusses ecological design solutions used in traditional houses and their applicability to modern buildings and recognizes that architecture should coexist and maintain harmony with nature. 相似文献
136.
137.
Aykan Karademir Halim Aytekin Ergül Bircan Telli Seda Aslan Kılavuz Mine Terzi 《Environmental science and pollution research international》2013,20(9):6611-6619
This study evaluates PCDD/F pollution in the surface sediments of Izmit Bay (Turkey) and assesses the possible sources of PCDD/F inputs to the bay. The results showed that concentrations of toxic PCDD/F congeners in the sediments varied between 0.45 and 255 ng WHO2005-TEQ/kg dry weight. Pollution mapping shows that PCDD/F levels in the central section of Izmit Bay are much higher than those in the eastern and the western sections. Sediments collected from the northern part of the central section showed very high PCDD/F concentrations. The samples reveal three different congener profiles dominated by OCDF, 1,2,3,4,6,7,8-HpCDF, and OCDD respectively. The dominance of OCDF in the sediment samples taken from the central section was attributed to the former production of vinyl chloride monomer in the area, while that of 1,2,3,4,6,7,8-HpCDF was attributed to the (previously unknown) use of a chlorophenol-based fungicide in the region. The OCDD dominated group was explained by the use of pentachlorophenol. The results indicate that historic industrial discharges are the main contributor to the PCDD/F pollution in the sediments. 相似文献
138.
The study of heavy metal pollution and accumulation in water, sediment, and fish tissue in Kızılırmak River Basin in Turkey 总被引:1,自引:0,他引:1
The accumulation of heavy metals such as Pb, Hg, Co, Cr, Cu, Zn, and Br were determined in water, sediment, muscle, and gill of three fish species (Leuciscus cephalus, Capoeta tinca, Capoeta capoeta) which were collected in K?z?l?rmak River Basin (Delice River). The metal concentration showed a general trend of Br>Zn> Pb>Cr>Cu>Hg>Co in water and Cr>Zn>Pb> Cu>Co>Hg>Br in sediment samples while Zn> Cu>Pb>Br>Cr>Hg>Co were in muscle and Zn>Pb>Cu>Cr>Br>Hg>Co were in the gill tissue. 相似文献
139.
Kelleci Orhan Aydemir Deniz Altuntas Ertuğrul Kurt Rıfat Oztel Ahmet Yorur Hüseyin Istek Abdullah 《Journal of Polymers and the Environment》2022,30(7):3091-3106
Journal of Polymers and the Environment - The aim of this study was to investigate the physical, mechanical, morphological, structural, and thermal properties of polylactic acid (PLA) and... 相似文献
140.
Memiş Selçuk Bılal Mohamed Ahmed Mohamed 《Environmental science and pollution research international》2022,29(11):15876-15895
Environmental Science and Pollution Research - Metakaolin, fly ash, and mostly granulated blast furnace slag (GBFS) are traditionally used in the production of geopolymer. This study, adding to the... 相似文献