Resource Type

Journal Article 366

Conference Videos 5

Year

2024 1

2023 28

2022 38

2021 31

2020 22

2019 26

2018 9

2017 17

2016 25

2015 17

2014 9

2013 11

2012 12

2011 15

2010 22

2009 15

2008 17

2007 18

2006 10

2005 3

open ︾

Keywords

Air pollution 10

air pollution 8

ozone 5

China 4

air quality 4

Air pollution control 3

Air pollution exposure 2

Air quality 2

Carbon dioxide 2

VOC 2

air pollution control 2

air temperature 2

air-conditioning 2

artificial intelligence 2

coal 2

desiccant air-conditioning 2

development 2

different 2

heat transfer 2

open ︾

Search scope:

排序： Display mode:

High-Efficiency Circularly Polarized Phased Array Based on 5 μm-Thick Nematic Liquid Crystals: Design, Over-The-Air Article

Xin Yu Wu,Fengshuo Wan,Hongyuan Feng,Shichao Jin,Chong Guo,Yu Wei,Dunge Liu,Yuqian Yang,Longzhu Cai,Zhi Hao Jiang,Wei Hong

Engineering 2024, Volume 32, Issue 1,   Pages 70-82 doi: 10.1016/j.eng.2023.08.013

Abstract: demonstration of a K-band circularly polarized liquid-crystal-based phased array (LCPA), including the design, over-the-air

Keywords： Circularly polarized     Liquid crystal     Liquid-crystal-based phased array (LCPA)     Phase shifter     Over-the-air    

HTML PDF Collect

Spatial fading channel emulation for over-the-air testing of millimeter-wave radios: concepts and experimental

Wei Fan, Lassi Hentilä, Pekka Kyösti,wfa@es.aau.dk

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 4,   Pages 548-559 doi: 10.1631/FITEE.2000484

Abstract: Over-the-air (OTA) radiated method of testing mmWave NR in laboratory conditions is highly attractive

Keywords： 空间信道模型；空口测试；无线线缆；多探头电波暗室；FR2验证    

HTML PDF Collect

Over-the-air measurement for MIMO systems Review Articles

Jun Li, Yihong Qi, Jun Fan,jun.li@generaltest.com,yihong.qi@generaltest.com

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 8,   Pages 1046-1058 doi: 10.1631/FITEE.2000230

Abstract: is an industry standard practice for evaluating transceiver performance in wireless devices. For the wireless systems with high integration, OTA testing is probably the only reliable method to accurately measure the transceiver performance, suitable for certification as well as for providing feedback for design verification and optimization. Further, technology is extensively applied for stable connection, high throughput rate, and low latency. In this paper, we provide an overview of the three main methods for evaluating the MIMO OTA performance, namely, the method, the method, and the method, with the aim of providing a useful guideline for developing effective in future 5G-and-beyond wireless systems.

Keywords： 空中（OTA）测试；无线性能测试；第五代（5G）及超5代；多入多出（MIMO）；多探头法（MPAC）；辐射两步法（RTS）；混响室加通道模拟器法（RC+CE）    

HTML PDF Collect

Catalytic wet air oxidation of phenol, nitrobenzene and aniline over the multi-walled carbon nanotubes

Shaoxia YANG,Yu SUN,Hongwei YANG,Jiafeng WAN

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 3,   Pages 436-443 doi: 10.1007/s11783-014-0681-x

Abstract: Wet air oxidation (WAO) is one of effective technologies to eliminate hazardous, toxic and highly concentratedas catalysts in the absence of any metals to investigate the catalytic activity in the catalytic wet airIn the CWAO of phenol over the functionalized MWCNTs, total phenol removal was obtained after 90 min

Keywords： catalytic wet air oxidation (CWAO)     carbon nanotubes (CNTs)     phenol     nitrobenzene     aniline    

HTML PDF Collect

Wastewater treatment by catalytic wet air oxidation process over Al-Fe pillared clays synthesized using

Halima Sassi, Gwendoline Lafaye, Hédi Ben Amor, Abdelaziz Gannouni, Mohamed Razak Jeday, Jacques Barbier-Jr

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 1, doi: 10.1007/s11783-017-0971-1

Abstract: The microwave-derived Al-Fe pillared clays have been tested for catalytic wet air oxidation (CWAO) of

Keywords： Water     Catalytic wet air oxidation     Pillared clays     Microwave     Phenol    

HTML PDF Collect

The observation of water-ice-air-ecosystem interactions and its application over the Tibetan Plateau

Ma Yaoming

Strategic Study of CAE 2012, Volume 14, Issue 9,   Pages 28-34

Abstract: The effective way to understand water-ice-air-ecosystem interactions over heterogeneous landscape ofthe Tibetan Plateau is to establish the comprehensive research stations over the different land surfacesFinally, the difficulty in observation and study of water-ice-air-ecosystem interactions of the Tibetan

Keywords： Tibetan Plateau     water-ice-air-ecosystem interactions     preliminary observational analysis results-O13    

HTML PDF Collect

Latest research progress of main cable dehumidification system of suspension bridge in China

Chen Ce

Strategic Study of CAE 2010, Volume 12, Issue 4,   Pages 95-99

Abstract: describes the latest progress of main cable dehumidification system key technology, including the dry airdehumidification system design parameters research, the main cable over-pressure exhaust system research

Keywords： dry air dehumidification     design parameters     over-pressure exhaust system     energy-efficient dehumidifier    

HTML PDF Collect

Reductive amination of -hexanol to -hexylamine over Ni–Ce/-AlO catalysts

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 1,   Pages 82-92 doi: 10.1007/s11705-022-2181-z

Abstract: The amination of alkyl alcohols is one of the most promising paths in synthesis of aliphatic amines. Herein, cerium doped nickel-based catalysts were synthesized and tested in a gas-phase amination of n-hexanol to n-hexylamine. It was found that the activity of the Ni/γ-Al2O3 catalyst is significantly improved by doping an appropriate amount of cerium. The presence of cerium effectively inhibits the agglomeration of nickel particle, resulting in better Ni dispersion. As Ni particle size plays critical role on the catalytic activity, higher turnover frequency of n-hexanol amination was achieved. Cerium doping also improves the reduction ability of nickel and enhances the interactions between Ni and the catalyst support. More weak acid sites were also found in those cerium doped catalysts, which promote another key step—ammonia dissociative adsorption in this reaction system. The overall synergy of Ni nanoparticles and acid sites of this Ni–Ce/γ-Al2O3 catalyst boosts its superior catalytic performance in the amination of n-hexanol.

Keywords： amination     alcohol     cerium     nickel     acidity     interaction    

HTML PDF Collect

Intercontinental transport of air pollution

Lin ZHANG,

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 1,   Pages 20-29 doi: 10.1007/s11783-010-0014-7

Abstract: There is an increasing interest on the intercontinental transport of air pollution among the three mainAir pollutants with sufficient long lifetime can be transported from one continent to another.from ground sites, aircraft and satellites have demonstrated this intercontinental-scale transport of airmodeling studies of intercontinental transport of ozone and its precursors, and the resulting impacts on air

Keywords： intercontinental transport     ozone     air pollution    

HTML PDF Collect

Health impacts of air pollution in China

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1367-1

Abstract:

•Impacts of air pollution on various body systems health in China were

Keywords： Health impacts     Air pollution     China     Advances    

HTML PDF Collect

Supersonic flows over cavities

FANG Tianwen, DING Meng, ZHOU Jin

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 528-533 doi: 10.1007/s11708-008-0055-9

Abstract: The characteristics of supersonic cold flows over cavities were investigated experimentally and numerically

Keywords： supersonic     different     ratio    

HTML PDF Collect

Experimental investigation on desiccant air-conditioning system in India

Vijay MITTAL, B. Kant KHAN,

Frontiers in Energy 2010, Volume 4, Issue 2,   Pages 161-165 doi: 10.1007/s11708-009-0070-5

Abstract: in a room with a volume of 86.4 m, air ducts and a blower.The experiment was made in such a way that the percentages of return air, outdoor air and indoor airmixed with the air leaving the desiccant and desiccant bed thickness could be adjusted.The optimum percentages of air ratios were as follows: 10% of outdoor air, 10% of return air (mixed togetherat the desiccant bed inlet) and 80% of indoor air mixed with the dry air leaving the desiccant.

Keywords： air ratios     ambient conditions     desiccant air-conditioning     silica gel    

HTML PDF Collect

Phenolic compounds removal by wet air oxidation based processes

Linbi Zhou, Hongbin Cao, Claude Descorme, Yongbing Xie

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 1, doi: 10.1007/s11783-017-0970-2

Abstract: Wet air oxidation (WAO) and catalytic wet air oxidation (CWAO) are efficient processes to degrade organic

Keywords： Wet air oxidation     Catalytic wet air oxidation     Phenolic compounds     Heterogeneous catalysts     Mechanism    

HTML PDF Collect

Efficient conversion of lignin to alkylphenols over highly stable inverse spinel MnFeO catalysts

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 8,   Pages 1085-1095 doi: 10.1007/s11705-022-2236-1

Abstract: The aromatic properties of lignin make it a promising source of valuable chemicals and fuels. Developing efficient and stable catalysts to effectively convert lignin into high-value chemicals is challenging. In this work, MnFe2O4 spinel catalysts with oxygen-rich vacancies and porous distribution were synthesized by a simple solvothermal process and used to catalyze the depolymerization of lignin in an isopropanol solvent system. The specific surface area was 110.5 m2∙g–1, which substantially increased the active sites for lignin depolymerization compared to Fe3O4. The conversion of lignin reached 94%, and the selectivity of alkylphenols exceeded 90% after 5 h at 250 °C. Underpinned by characterizations, products, and density functional theory analysis, the results showed that the catalytic performance of MnFe2O4 was attributed to the composition of Mn and Fe with strong Mn–O–Fe synergy. In addition, the cycling experiments and characterization showed that the depolymerized lignin on MnFe2O4 has excellent cycling stability. Thus, our work provides valuable insights into the mechanism of lignin catalytic depolymerization and paves the way for the industrial-scale application of this process.

Keywords： lignin depolymerization     spinel     catalysts     hydrogenation    

HTML PDF Collect

API-based assessment on urban air environment bearing capability in China

Jinnan WANG,Jing ZHANG,Hongqiang JIANG,Yaling LU

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 6,   Pages 1049-1055 doi: 10.1007/s11783-014-0662-0

Abstract: Given the complexity and time-consuming of the conventional environmental capacity based assessment on airenvironment carrying capacity; a new method for assessing urban air environment carrying capacity basedon air pollution index (API) is presented.By using this new method, the air environmental bearing capability of 333 cities at the prefecture levelThe assessment results imply that the existing air quality standard (GB3095-1996) is quite unsound.

Keywords： air pollution index (API)     air environment bearing capability     key city     assessment method    

HTML PDF Collect

Title Author Date Type Operation

High-Efficiency Circularly Polarized Phased Array Based on 5 μm-Thick Nematic Liquid Crystals: Design, Over-The-Air

Xin Yu Wu,Fengshuo Wan,Hongyuan Feng,Shichao Jin,Chong Guo,Yu Wei,Dunge Liu,Yuqian Yang,Longzhu Cai,Zhi Hao Jiang,Wei Hong

Journal Article

Spatial fading channel emulation for over-the-air testing of millimeter-wave radios: concepts and experimental

Wei Fan, Lassi Hentilä, Pekka Kyösti,wfa@es.aau.dk

Journal Article

Over-the-air measurement for MIMO systems

Jun Li, Yihong Qi, Jun Fan,jun.li@generaltest.com,yihong.qi@generaltest.com

Journal Article

Catalytic wet air oxidation of phenol, nitrobenzene and aniline over the multi-walled carbon nanotubes

Shaoxia YANG,Yu SUN,Hongwei YANG,Jiafeng WAN

Journal Article

Wastewater treatment by catalytic wet air oxidation process over Al-Fe pillared clays synthesized using

Halima Sassi, Gwendoline Lafaye, Hédi Ben Amor, Abdelaziz Gannouni, Mohamed Razak Jeday, Jacques Barbier-Jr

Journal Article

The observation of water-ice-air-ecosystem interactions and its application over the Tibetan Plateau

Ma Yaoming

Journal Article

Latest research progress of main cable dehumidification system of suspension bridge in China

Chen Ce

Journal Article

Reductive amination of -hexanol to -hexylamine over Ni–Ce/-AlO catalysts

Journal Article

Intercontinental transport of air pollution

Lin ZHANG,

Journal Article

Health impacts of air pollution in China

Journal Article

Supersonic flows over cavities

FANG Tianwen, DING Meng, ZHOU Jin

Journal Article

Experimental investigation on desiccant air-conditioning system in India

Vijay MITTAL, B. Kant KHAN,

Journal Article

Phenolic compounds removal by wet air oxidation based processes

Linbi Zhou, Hongbin Cao, Claude Descorme, Yongbing Xie

Journal Article

Efficient conversion of lignin to alkylphenols over highly stable inverse spinel MnFeO catalysts

Journal Article

API-based assessment on urban air environment bearing capability in China

Jinnan WANG,Jing ZHANG,Hongqiang JIANG,Yaling LU

Journal Article