AIR
AIR的相关文献在1987年到2022年内共计615篇,主要集中在肿瘤学、轻工业、手工业、大气科学(气象学)
等领域,其中期刊论文589篇、专利文献26篇;相关期刊242种,包括中南大学学报、中国服装(北京)、环境科学学报:英文版等;
AIR的相关文献由1663位作者贡献,包括Nobuyuki Miyatake、Noriko Sakano、Shoko Murakami等。
AIR
-研究学者
- Nobuyuki Miyatake
- Noriko Sakano
- Shoko Murakami
- Motoya Hayashi
- Tiziano Tirabassi
- Adama Faye
- Fatou K. Sylla
- Haruki Osawa
- Igor V. Mingalev
- KICKS(图)
- Konstantin G. Orlov
- Mamadou Fall
- Ron Vincent
- Thomas Alsmo
- Tomohiro Hirao
- Victor S. Mingalev
- Yoshinori Honma
- 于剑昆(译)
- Adrian Ilinca
- Alexander Golub
- Amaury de Souza
- Amrita Iyer
- Anta TAL-DIA
- Ashraf A. Zahran
- Bernat Codina
- Bhaskar Kura
- Brian
- C. Telloli
- C.-Y. Cynthia Lin
- Camila Pinto da Costa
- Catharina Alsmo
- Daniela Buske
- Eldred Tunde Taylor
- Elena Ajdari
- Flavio Aristone
- G. Tolentino Eslava
- Hayato Saito
- Hiroaki Kuze
- Hussein Ibrahim
- Ilham Alimuddin
- Ippei Harada
- Jingtian Bi
- Jose Emilio Vargas-Soto
- Julio Lumbreras
- Kenichi Hasegawa
- Lelia Croitoru
- Loretta Gratani
- Maolin Cai
- Marco Tullio Vilhena
- Marco Túllio Vilhena
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Hilary Bakamwesiga;
William Mugisha;
Yeeko Kisira;
Andrew Muwanga
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摘要:
The unquenchable demand for rock materials has attracted many companies within the building and construction sector to invest in stone quarrying. However, this has brought about environmental impacts with health threats to people. There is a paucity of information about the magnitude of pollution on air and water and how it varies with quarry sites. This study, therefore, investigated the physical impacts of quarrying on air and water and explored the in-situ mitigations to undesirable effects due to stone quarrying. Four active quarry sites were identified. Field measurements of dust (particulate matter) were conducted within the four quarry sites and in the nearby community. Water samples were collected from quarry pits and nearby shallow wells for laboratory analysis of water quality. Statistical Analysis of Variance (ANOVA) was used to test for differences in pollution across the four studied sites. Results revealed that, amidst the use of wet crushing and water sprinkling on bare surfaces, dust emission was higher than the recommended permissible standards levels with a significant variation across the quarry sites with ANOVA (P-value = 0.003) for PM 2.5 and (P-value = 0.04366) for PM 10. Water pollution was mainly contributed by the non-permissive levels of nitrates, chromium, and pH. Polluted air and water are associated with sparking off health threats to the users in the community. In conclusion, quarry companies should strengthen the already existing mitigation of dust suppression. The study recommends additional measures such as treating quarry pit water before discharging to the open environment to enhance environmental protection against the accumulating undesirable quarry impacts.
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邹振东;
余雷雨;
丁金山;
刘锦慧;
林倩云;
鄢春华;
黄婉彬;
邱国玉
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摘要:
汽车尾气排放是空气污染最主要的来源之一,已有技术以机内净化技术和机外净化技术为主,少有关注如何从发动机前端入手减少汽车尾气污染物排放。Warp Air Clean(WAC)装置可以通过静电作用改善发动机进气质量,优化发动机燃烧过程,因此基于国五Ⅰ型测试进行了WAC装置减排效果研究。结果表明:(1)WAC装置对汽油车尾气排放的总碳氢化合物(THC)、CO、氮氧化物(NO_(x))、颗粒物(PM)、CH_(4)和非甲烷总烃(NMHC)都有着较好的减排效果;(2)总体而言,WAC装置对汽油车旧车的减排效果优于新车;(3)对汽油车THC、CH_(4)和NMHC的市区工况减排效果优于市郊工况,而对CO和NO_(x)的市郊工况减排效果优于市区工况;(4)对不超过九座的载客车辆的减排效果优于最大设计总质量不超过3500 kg的载货车辆。
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铉亚欣
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摘要:
cqvip:Clinac CX直线加速器是美国瓦里安公司在中国生产的主要面向中国市场的新型直线加速器,主要分为低能机型和高能机型(在高能机型上配有图像引导放射治疗部件),是目前用量最大的放射治疗机型之一,主要采用兆级高电压产生的X线或电子线精确照射患者肿瘤部位以杀灭恶性细胞。Clinac CX直线加速器能产生高能X线和电子线,具有剂量率高、照射时间短、照射野大、剂量均匀性和稳定性好等优点,并能进行三维立体定向治疗、三维适形放射治疗、调强放射治疗,在肿瘤科临床上具有很高应用价值。
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Chinh C. Tran;
Thi D. Ta;
An T. Duong;
Oanh T. K. Phan;
Dung A. Nguyen
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摘要:
Air quality is one of key issues to be addressed in the Vietnam environmental security strategy. As part of the strategy, this study investigates the temporal patterns of PM2.5 variations in Hanoi using data measured from January 2017 to December 2018. The loglinear regression is used to analyze how the meteorological factors affect the PM2.5 variations. The analysis indicates the seasonal, monthly and diurnal variations of PM2.5 concentrations. The lowest concentration level is found in the summer due to hot climatic conditions with strong winds and high solar radiation. The highest PM2.5 concentration is observed in winter as a result of stagnation. The concentration levels from 2:00 AM to 8:00 AM tend to be higher than other hours of the day while the downtrend is recorded from 11:00 AM to 7:00 PM and reaches the lowest levels of the day at 2:00 PM to 3:00 PM. The study results provide important information for government authorities, international and civil society organizations on when and why the PM2.5 concentration levels increase. This predictive analysis would be useful to develop early warning systems and to minimize the negative impacts of air pollution on public health.
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丰台顽石(文图)
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摘要:
作为一个浸淫媒体圈十五年的“老人”,我见证过历史。2008年,乔布斯从一个纸质办公信封中取出了MacBook Air,轻描淡写地说:“它是世界上最薄的笔记本电脑。”全世界为之震惊,因为从来没有这么纤薄小巧的笔记本电脑,极简的设计、完美的做工,让我不禁惊呼“它来自未来”。
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李柯
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摘要:
任何一门技艺的习得与掌握都需要经由大量的"练习"来达成,钢琴表演艺术也是如此.然而,如何练琴,更进一步如何科学高效地练琴,一直以来都困扰着广大的钢琴学习者、爱好者.本文通过笔者在俄罗斯圣彼得堡音乐学院公派访学[1]的亲身经历,结合不同历史时期、不同学术流派之大家观点,以学生与教师的双重视角,从练习时间、质变时机、AIR以及特殊练琴方式等方面探讨了钢琴练习技巧中的一些新思路.
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Mynepalli Kameswara Chandra Sridhar;
Godson Rowland Ewa Ekpenyong Ana;
Temitope Ayodeji Laniyan
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摘要:
Land reclamation is gradually posing negative impact on man due to unplanned urbanization. A study was carried out on impact of land reclamation through sand mining of coastal communities in Ikate and Ilubirin in Lagos, Nigeria. Ten waters (8 surface and 2 groundwater sources), 10 soil samples and air were collected and taken for analysis. Results of water revealed concentrations lower than WHO (2017) and SON (2007) standards. Soil/sediment with average crustal value revealed Pb and Cd above standard values, which is attributed to anthropogenic influence on soils. Quality of air in the study was mainly particulate matter arising from the sea and reclaimed land in the surroundings of the environment with the highest Total Suspended Particulate of 0.8 mg/m3 in sulfur dioxide. This explains corrosion found on the roofs of the communities. Therefore, in the development planning adequate precautions should be put in place to avert environmental degradation.