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| 1 | Primal-dual algorithms for total variation based image restoration under Poisson noise Dedicated to Professor Lin Qun on the Occasion of his 80th Birthday显示文摘We consider the problem of restoring images corrupted by Poisson noise. Under the framework of maximum a posteriori estimator, the problem can be converted into a minimization problem where the objective function is composed of a Kullback-Leibler(KL)-divergence term for the Poisson noise and a total variation(TV) regularization term. Due to the logarithm function in the KL-divergence term, the non-differentiability of TV term and the positivity constraint on the images, it is not easy to design stable and efficiency algorithm for the problem. Recently, many researchers proposed to solve the problem by alternating direction method of multipliers(ADMM). Since the approach introduces some auxiliary variables and requires the solution of some linear systems, the iterative procedure can be complicated. Here we formulate the problem as two new constrained minimax problems and solve them by Chambolle-Pock's first order primal-dual approach. The convergence of our approach is guaranteed by their theory. Comparing with ADMM approaches, our approach requires about half of the auxiliary variables and is matrix-inversion free. Numerical results show that our proposed algorithms are efficient and outperform the ADMM approach. | WEN YouWei CHAN Raymond Honfu ZENG TieYong | 2016 | Science China Mathematics2016，59，1： | 5 |
| 2 | Avalanche photodiodes on silicon photonics显示文摘Silicon photonics technology has drawn significant interest due to its potential for compact and high-performance photonic integrated circuits.The Ge-or III-V material-based avalanche photodiodes integrated on silicon photonics provide ideal high sensitivity optical receivers for telecommunication wavelengths.Herein,the last advances of monolithic and hetero-geneous avalanche photodiodes on silicon are reviewed,including different device structures and semiconductor systems. | Yuan Yuan Bassem Tossoun Zhihong Huang Xiaoge Zeng Geza Kurczveil Marco Fiorentino Di Liang Raymond G.Beausoleil | 2022 | Journal of Semiconductors2022，43，2： | 3 |
| 3 | 64 Gb/s low-voltage waveguide SiGe avalanche photodiodes with distributed Bragg reflectors显示文摘We demonstrate low-voltage waveguide silicon-germanium avalanche photodiodes(APDs)integrated with distributed Bragg reflectors(DBRs).The internal quantum efficiency is improved from 60%to 90%at 1550 nm assisted with DBRs while still achieving a 25 GHz bandwidth.A low breakdown voltage of 10 V and a gain bandwidth product of near 500 GHz are obtained.APDs with DBRs at a data rate of 64 Gb/s pulse amplitude modulation with four levels(PAM4)show a 30%–40%increase in optical modulation amplitude(OMA)compared to APDs with no DBR.A sensitivity of around-13 d Bm at a data rate of 64 Gb/s PAM4 and a bit error rate of 2.4×10^-4 is realized for APDs with DBRs,which improves the sensitivity by^2 d B compared to APDs with no DBR. | Binhao Wang Zhihong Huang Yuan Yuan Di Liang Xiaoge Zeng Marco Fiorentino Raymond G.Beausoleil | 2020 | Photonics Research2020，8，7： | 2 |
| 4 | Identification and comparison of aerobic and denitrifying organisms显示文摘 | Raymond J Zeng Aaron M Saunders Zhiguo Yuan | 2003 | Biotechnology and Bioengineering2003，83，2： | 1 |
| 5 | Enrichment of denitrifying glycogen -accumulating organisms in anaerobic/anoxic activated sludge system 显示文摘 | Raymond J Zeng Zhiguo Yuan Jtirg Keller | 2007 | Biotechnol and Bioeng2007，，： | 1 |
| 6 | Challenges for simultaneous nitrification, denitrification andphosphorus removal in microbial aggregates:mass transfer limitation and nitrous oxide production 显示文摘 | Rikke Louise Meyer Raymond Jianxiong Zeng Valerio Giugliano | 2005 | FEMS Microbiology Ecology2005，52，3： | 1 |
| 7 | Challenges simultaneous nitrification, denitrification and phosphorus removal in microbial aggregates: mass transfer limitation and nitrous oxide production 显示文摘 | Rikke Louise Meyer Raymond Jianxiong Zeng Valerio Giugliano | 2005 | Microbiology Ecology2005，52，3： | 1 |
| 8 | Optimisatiot of poly-/3-hydroxyalkanoate analysis using gas chromatography for enhanced biological phosphorus removal systems显示文摘 | Adrian Oehmen Beatrice Keller-Lehmann Raymond J Zeng | 2005 | Joumal of Chromatography A2005，1070，： | 1 |
| 9 | Nano-structured manganese oxide as a cathodic catalyst for enhanced oxygen reduction in a microbial fuel cell fed with a synthetic wastewater显示文摘 | Xian-Wei Liu Xue-Fei Sun Yu-Xi Huang Guo-Ping Sheng Kang Zhou Raymond J. Zeng Fang Dong Shu-Guang Wang An-Wu Xu Zhong-Hua Tong Han-Qing Yu | 2010 | Water Research2010，，18： | 1 |
| 10 | Microbial communities involved in electricity generation from sulfide oxidation in a microbial fuel cell显示文摘 | Min Sun Zhong-Hua Tong Guo-Ping Sheng Yong-Zhen Chen Feng Zhang Zhe-Xuan Mu Hua-Lin Wang Raymond J. Zeng Xian-Wei Liu Han-Qing Yu Li Wei Fang Ma | 2010 | Biosensors and Bioelectronics2010，，2： | 1 |
| 11 | Optimisation of poly-β-hydroxyalkanoate analysis using gas chromatography for enhanced biological phosphorus removal systems显示文摘 | Adrian Oehmen Beatrice Keller-Lehmann Raymond J. Zeng Zhiguo Yuan Jürg Keller | 2005 | Journal of Chromatography A2005，，1： | 1 |
| 12 | Challenges simultaneous nitrification,denitrification and phosphorus removal in microbial aggregates:mass transfer limitation and nitrous oxide production显示文摘 | Rikke Louise Meyer Raymond Jianxiong Zeng Valerio Giugliano | | 0，，03： | 1 |
| 13 | Challenges for Simultaneous nitrification, denitrification and phosphorus removal in mierobiala aggregates: mass transfer limitation and nitrous oxide production显示文摘 | Rikke Louise Meyer Raymond Jianxiong Zeng Valerio Giugliano | 2005 | FEMS Microbiology Ecology2005，52，3： | 1 |
| 14 | Anaerobic metabolism of propionate by polyphhosphate-accumulating organisms in enhanced biological phosphorus removal systems显示文摘 | Oehmen Adrian Zeng Raymond J Yuan Zhiguo | 2005 | Biotechnology and Bioengineering2005，91，1： | 1 |
| 15 | Hydrogen and methane production from household solid waste in the two-stage fermentation process 显示文摘 | LIU Da-wei LI Da-peng RAYMOND J Zeng | 2006 | Water Research2006，40，11： | 1 |
| 16 | Precise and Economical Dredging Model of Sediments and Its Field Application: Case Study of a River Heavily Polluted by Organic Matter, Nitrogen, and Phosphorus显示文摘 | Rui Zhang Fan-Xin Zeng Wu-Jun Liu Raymond J. Zeng Hong Jiang | 2014 | Environmental Management2014，，6： | 1 |
| 17 | Challenges for simultaneous nitrification, denitrification, and phosphorus removal in microbial aggregates: mass transfer limitation and nitrous oxide production 显示文摘 | Louise R Raymond M Zeng J X | 2005 | FEMS Microbiol Ecol2005，52，3： | 1 |
| 18 | Challenges for simultaneous nitrification,denitrification and phosphorus removal in microbial aggregates:mass transfer limitation and nitrous oxide production显示文摘 | Rikke Louise Meyer Raymond Jianxiong Zeng Valerio Giugliano | 2005 | FEMS Microbiology Ecology2005，52，3： | 1 |
| 19 | Intracerebroventricular injec- tion of epidermal growth factor reduces neurological deficit and infarct volume and enhances nestin expression following focal cerebral infarction in adult hypertensive rats显示文摘 | Yu J Zeng JS Raymond T | 2009 | Clinical and Experimental Pharmacology Physiology2009，36，56： | 1 |
| 20 | Adaptive Feedforward Control for Gust Load Alleviation 显示文摘 | Zeng Jie Boris Moulin Raymond de Callafon | 2010 | Journal of Guidance Control and Dynamics2010，33，3： | 1 |
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