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| 1 | Occurrence,removal and emission of per-and polyfluorinated alkyl substances(PFASs)from chrome plating industry:A case study in Southeast China显示文摘Per-and polyfluorinated alkyl substances(PFASs)have been used since the 1950s as chrome mist suppressant(CMS)in the electroplating industry.In this study,various samples within an electroplating factory,the related wastewater treatment facilities and surrounding environment at Hangzhou Bay in Southeast China were investigated for the occurrence and removal of PFASs.PFOS and 6:2 Cl-PFAES are predominant compounds in the samples.The PFASs in the bath solution of the workshops had some differences from the final releases,partly because of the historic usage and memory effects.PFOS and 6:2 Cl-PFAES were found in high concentration(5500 and 154.5 mg/L in influent,795 and 985 mg/L in effluent)in the electroplating Wastewater Treatment Plant(WWTP).The ultrafiltration and reverse osmosis(RO)treatment had a significant removal efficiency(74%e100%).On the other hand the reduction,precipitation and anaerobic/anoxic/oxic(A2/O)treatment had poor removal efficiency for PFASs.The receiving river samples had levels of PFASs between 300 and 1500 ng/L,and the concentrations of PFOS and 6:2 Cl-PFAES decreased with increasing distance to the municipal WWTP outlet due to dilution.The concentrations of PFOA in the river water samples were also high but might originate from other sources.The relevant ecological risk is noteworthy,especially for PFOS and PFOA for which limits have been defined.There is an urgent need to control plating industries in China and worldwide.Currently a GEF project related to Stockholm Convention implementation has reduced and possibly eliminated PFOS use and release in the plating industry in China.In addition,it will be important to evaluate and control the alternatives used. | Yingxi Qu Jun Huang Wolfram Willand Roland Weber | 2020 | Emerging Contaminants2020，6，1： | 5 |
| 2 | QUANTUM MECHANICAL MODEL AND SIMULATION OF GaAs/AlGaAs QUANTUM WELL INFRARED PHOTODETECTOR-Ⅱ ELECTRICAL ASPECTS显示文摘A complete quantum mechanical model for GaAs/AlGaAs quantum well infrared photodetectors(QWIPs) was presented. The photocurrent was investigated by the optical transition(absorption coefficient)between the ground state and the excited states due to the nonzero component of the radiation field along the sample growth direction. By studying the inter diffusion of the Al atoms across the GaAs/AlGaAs heterointer faces, the mobility of the drift diffusion carriers in the excited states was calculated. As a result, the measurement results of the dark current and the photocurrent spectra are explained theoretically. | Fu Y Willander M LU W | 2002 | 红外与毫米波学报2002，21，6： | 4 |
| 3 | QUANTUM MECHANICAL MODEL AND SIMULATION OF GaAs/AlGaAs QUANTUM WELL INFRARED PHOTO-DETECTOR-ⅠOPTICAL ASPECTS显示文摘A complete quantum mechanical model for GaAs?AlGaAs quantum well infrared photodetectors(QWIPs) is presented here. The model consisted of four parts: (1) Starting with the description of the electromagnetic field of the infrared radiation in the QWIP, effective component of the vector potential <| A z |> along the QWIP growth direction ( z axis) due to the optical diffraction grating was calculated. (2) From the wave transmissions and the occupations of the electronic states, it was discussed that the dark current in the QWIP is determined by the drift diffusion current of carriers thermally excited from the ground sublevel in the quantum well to extended states above the barrier. (3) The photocurrent was investigated by the optical transition (absorption coefficient between the ground state to excited states due to the nonzero <| A z |> ). (4) By studying the inter diffusion of the Al atoms across the GaAs?AlGaAs heterointerfaces,the mobility of the drift diffusion carriers in the excited states was calculated, so the measurement results of the dark current and photocurrent spectra can be explained theoretically. With the complete quantum mechanical descriptions of (1 4), QWIP device design and optimization are possible. | Fu Y Willander M Li Ning Lu W | 2002 | 红外与毫米波学报2002，21，5： | 2 |
| 4 | Solid and soft nano -structured materials:Fundamentals and applications 显示文摘 | WILLANDER M NUR O LOZOVIK Yu E | 2005 | Micro electronics Journal2005，，7： | 1 |
| 5 | Variation in diel activity of ground beetles (Coleoptera: Cambidae) associated with a soybean field and coal mine remnant显示文摘 | Willand J E McCravy K W | 2006 | Great Lakes Entomologist2006，39，： | 1 |
| 6 | Electrical muscle stimulation after immediate nerve repair reduces muscle atrophy without affecting reinnervation显示文摘 | Willand MP Holmes M Bain JR | 2013 | Muscle Nerve2013，48，2： | 1 |
| 7 | Annealing Effects on Optical Properties of Low Temperature Grown ZnO Nanorod Arrays 显示文摘 | YANG Li-li ZHAO Qing-xiang Willander M | 2009 | J Appl phys2009，105，05： | 1 |
| 8 | 查看详情显示文摘 | Israr M Q Sadaf J R Asif M H Nur O Willander M Danielsson B | | 0，，03： | 1 |
| 9 | BRICHOS domains efficiently delay fibrillation of amyloid β-peptide显示文摘 | Willander H Presto J Askarieh G | 2012 | J Biol Chem2012，287，31： | 1 |
| 10 | Limits on Downsizing in Spark Ignition Engines due to Super Knock显示文摘 | Jurgen Willand Marc Daniel Emanuela Monte-franc esco | 2009 | MTZ2009，70，5： | 1 |
| 11 | High-resolution structure of a BRICHOS domain and its implications for anti-amyloid chaperone activity on lung suffactant protein C显示文摘 | Willander H Askarieh G Landreh M | 2012 | Proc Natl Acad Sci U S A2012，109，7： | 1 |
| 12 | Ⅲ-nitrides: growth, characterization, and properties显示文摘 | JAIN S C WILLANDER M NARAYAN J | 2000 | Appl Phys2000，87，： | 1 |
| 13 | Limits on downsizing in spark ignition engines due to pre-ignition显示文摘 | Jurgen Willand Marc Daniel Emanuela Montefrancesco | | 0，，05： | 1 |
| 14 | Effective Way to Control the Size of Well-Aligned ZnO Nanorod Arrays with Two-Step Chemical Bath Deposition 显示文摘 | YANG Li-li ZHAO Qing-xiang Willander M | 2009 | Journal of Crystal Growth2009，311，4： | 1 |
| 15 | Ⅲ- nitrides: growth, characterization, and properties 显示文摘 | JAIN S C WILLANDER M NARAYAN J | 2000 | Journal of Applied Physics2000，87，3： | 1 |
| 16 | Synthesis and Characterization of ZnO Nanostructures Grown on Si Substrates显示文摘 | Zhao Q X Klason P Willander M | 2006 | Phys Scr2006，126，： | 1 |
| 17 | Ⅲ-nitrides:growth,characterization,and properties显示文摘 | Jain S C Willander M Narayan J Overstraeten R V | | 0，，03： | 1 |
| 18 | Limits on downsizing in spark ignition engines due to pre-ignition显示文摘 | Willand J Daniel M Geringer E B | 2009 | MTZ2009，70，5： | 1 |
| 19 | Ⅲ-nitrides:growth,characterization,and properties显示文摘 | JAIN S C WILLANDER M NARAYAN J | 2000 | J Appl Phys2000，87，97： | 1 |
| 20 | Selective calcium ion detection with functionalized ZnO nanorods-extended gate MOSFET 显示文摘 | ASIF M H NUR O WILLANDER M DANIELSSON B | 2009 | Biosensors and Bioelectronics2009，24，11： | 1 |
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