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Effects of the sunscreen ultraviolet filter,oxybenzone,on green microalgae

Advances in Polar Science 2020年第2期31卷 112-123页

作者： Ming-Li TEOH nur suhaida sanusi Ching-Yee WONG John BEARDALL School of Biosciences Taylor’s UniversityLakeside Campus47500 Subang JayaSelangor Darul EhsanMalaysia Institute of Ocean and Earth Sciences University of Malaya50603 Kuala LumpurMalaysia National Antarctic Research Centre Institute of Graduate StudiesUniversity of Malaya50603 Kuala LumpurMalaysia School of Biological Sciences Monash UniversityClaytonVictoria 3800Australia

Ultraviolet(UV)filters are widely used in sunscreen and personal care products due to their ability to give protection to our skin from UV ***,commonly known as benzophenone-3,is one type of UV filter found as the active ingredient in many pharmaceutical *** oxybenzone has been extensively studied as an environmental toxicant in the ecosystem,little is known about its toxicity effects on *** effects of oxybenzone on growth(measured as OD620 nm,chlɑand carotenoids)and macromolecular composition of polar microalgae(Chlorella UMACC 400 and Chlorella UMACC 401)and temperate microalgae(Chlorella sp.,Chlamydomonas reinhardtii,Scenedesmus quadricauda)were *** microalgae were cultured in triplicate and exposed to different oxybenzone concentrations(0,100,200,300 and 400 mg·L-1),at 4℃and 18 for polar and temperate species respectively,for 96 *** oxybenzone concentrations used℃represent a range from environmental to extreme concentrations to understand the impact of this toxicant on *** results showed that the highest concentration of oxybenzone(300 and 400 mg·L-1)had adverse effects on growth rate and biomass of these ***,exposure to oxybenzone concentrations ranging from 200 mg·L-1 to 400 mg·L-1 did not have significant effects on *** *** exposure to oxybenzone at higher concentrations also led to changes in cell structure after 96 ***,protein and carbohydrate content of all microalgae except *** increased with increasing oxybenzone *** content increased significantly when cells were exposed to oxybenzone,though effects were greater in the polar species,suggesting that it could be one of the adaptive strategies that enabled these microalgae to tolerate *** investigation is required to determine the effects of oxybenzone on other features of microalgal performance at relevant environmental concentrations.

关键词： polar algae temperate algae Chlorella benzophenone-3 emerging contaminants

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Achieving Cooler Soil as an Effective Heat Sink for Earth-to-Air Heat Exchanger (EAHE) Cooling Technology in Malaysia Tropical Climate

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Natural Resources 2014年第13期5卷 804-809页

作者： Aliyah nur Zafirah sanusi Aidil Azlan Ahmad Zamri Kulliyyah of Architecture and Environmental Design Intenational Islamic University Malaysia Kuala Lumpur Malaysia

This research is intended to explore the capacity of Malaysia soil in becoming a more effective heat sink for the application of Earth-to-Air Heat Exchanger (EAHE) Cooling Technology in Malaysia. EAHE Cooling Technology consists of buried pipes underground where the ambient air is channeled through from the pipe inlet and produces cooler air at its outlet. Within the buried pipes, heat exchange process occurs between the air and the soil that surrounding the pipe. This building cooling technology has been applied in many countries, mostly in temperate or hot and arid climate where the diurnal temperature is large. However, minimal resources were found on the study of EAHE application to buildings in Malaysia, hence there is room to develop. A parametric study on EAHE cooling application in Malaysia was done through field experiment and concluded that among many parameters affecting the technology performance, the soil temperature which surrounded the pipe was the most influential factor. The study recommended to further reduce the soil temperature to achieve a cooler outlet temperature. In response to that, this research conducted a parametric study of soil temperature under three different soil surface conditions: bare, shaded with timber pallettes and insulated with used tyres at 1.0 m and 1.5 m underground. The data was logged for a month and the result has shown significant reduction in the soil temperature underground below the shaded and insulated soil surface as compared to below bare soil surface condition. The insulated soil surface produced the best result where the soil temperature was reduced up to 26.9°C. The main contribution of this paper is to highlight that the soil surface treatment can be used to reduce solar heat gain within the soil underground and thus improving the performance of EAHE Cooling Technology particularly for the application in Malaysia tropical climate.

关键词： Ground Cooling Green Technology Earth-to-Air Heat Exchanger Cooled Soil

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民众乐园支墩上的居住容器

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城市环境设计 2013年第12期 166-167页

作者： Mohamad Qaisyfullah Bin jaslenda Muhammad Hazim Bim Azami Hanis Bin Abd Razak Aida Kesuma Binti Azmin Aliyah nur Zafirah Bt.sanusi 马来西亚国际伊斯兰大学

政治和经济因素驱动下的大规模建筑摧毁了人们的生活和希望,民众乐园要求这种建筑消失。用抽象化的社区概念取代旧式的"社会"概念,使人们能够直接控制自己的生活环境。该结构以满足个人需求和人体工程学为目标而建造,创造令人心旷神怡... 详细信息

政治和经济因素驱动下的大规模建筑摧毁了人们的生活和希望,民众乐园要求这种建筑消失。用抽象化的社区概念取代旧式的"社会"概念,使人们能够直接控制自己的生活环境。该结构以满足个人需求和人体工程学为目标而建造,创造令人心旷神怡、精神抖擞的城市肌理和环境。居住容器存在于现代化的废墟中,承载着

关键词：马来西亚国际伊斯兰大学支墩城市景观城市形态城市肌理民众乐园

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