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Quantum vector DC magnetometry via selective phase accumulation

Science China(Physics,Mechanics & Astronomy) 2024年第10期67卷 12-22页

作者： min zhuang Sijie Chen Jiahao Huang Chaohong Lee Institute of Quantum Precision Measurement State Key Laboratory of Radio Frequency Heterogeneous IntegrationCollege of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen 518060China Quantum Science Center of Guangdong-Hong Kong-Macao Greater Bay Area(Guangdong) Shenzhen 518045China Laboratory of Quantum Engineering and Quantum Metrology School of Physics and AstronomySun Yat-sen University(Zhuhai Campus)Zhuhai 519082China

Precision measurement of magnetic fields is a crucial issue in both fundamental scientific research and practical sensing *** sensitive detection of a vector magnetic field poses a significant challenge in quantum magnetometry,particularly in estimating a vector DC magnetic field with high ***,we propose a comprehensive protocol for quantum vector DC magnetometry,utilizing selective phase accumulation in both non-entangled and entangled quantum *** upon the principles of Ramsey interferometry,our protocol enables the selective accumulation of phase for a specific magnetic field component by incorporating a meticulously designed pulse *** the individual measurement scheme,we employ three individual quantum interferometries to independently estimate each of the three magnetic field ***,in the simultaneous measurement scheme,the application of a pulse sequence along different directions enables the simultaneous estimation of all three magnetic field components using only one quantum ***,by employing an entangled state(such as the Greenberger-Horne-Zeilinger state)as the input state,the measurement precisions of all three components may reach the Heisenberg *** study not only establishes a general protocol for measuring vector magnetic fields using quantum probes,but also presents a viable pathway for achieving entanglement-enhanced multi-parameter estimation.

关键词： magnetometry quantum interferometry entanglement-enhanced quantum metrology

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Audio steganalysis based on “negative resonance phenomenon” caused by steganographic tools

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2006年第4期7卷 577-583页

作者： RU Xue-min zhuang Yue-ting WU Fei Institute of Artificial Intelligence Zhejiang University Hangzhou 310027 China

Researching on the impact different steganographic software tools have audio statistical features, revealed the phe- nomenon that when messages are embedded in a WAV file by using a certain tool, the variation of statistical features in the WAV file which already contains messages embedded by the same tool is abruptly smaller than those in which messages have not been embedded. We call it “negative resonance phenomenon” temporarily. With the phenomenon above and Support Vector Machines (SVMs), we can detect the existence of hidden messages, and also identify the tools used to hide them. As shown by the experi- mental results, the proposed method can be very effectively used to detect hidden messages embedded by Hide4PGP, Stegowav and S-Tools4.

关键词： Audio steganalysis Linear prediction Support Vector Machine (SVM)

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A Few Specialized Issues That Should Be Focused on Anti-HIV Drug Evaluation In Vitro

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Virologica Sinica 2010年第4期25卷 301-306页

作者： Dao-min zhuang Jing-yun LI State Key Laboratory of Pathogen and Biosecurity Institute of Microbiology and Epidemiology Academy of Military Medical Science Beijing 100071 China

Since the introduction of antiretroviral therapy (ART), the lifespan and quality of life of patients infected with HIV have been significantly improved. But treatment efficacy was compromised eventually by the development of resistance to antiretroviral drugs, and more new anti-HIV drugs with lower toxicity and higher activity were needed. Based on the experience and lessons learned from the treatment in the developed countries, US FDA suggested that more pharmacodynamical researches should be considered ahead of the clinical trials. To facilitate the anti-HIV drug research and development, we reviewed a few specialized issues that should be focused on drug evaluations in vitro, including: 1) Mechanism of action studies, demonstrating the candidate drug's efficacy to specifically inhibit viral replication or a virus-specific function and confirm the drug target. 2) Drug resistance studies, selecting the drug-resistant variants in vitro and determining the activities inhibiting HIV isolates resistant to approved antiretroviral drugs of the same class. 3) Antiviral activity in vitro in the presence of serum proteins, ascertaining whether an investigational product is significantly bound by serum proteins. 4) Combination activity analysis, evaluating in vitro antiviral activity of an investigational product in two-drug combinations with other drugs approved.

关键词： Human immunodeficiency virus Drug evaluation Drug resistance

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Bonding Interface Imaging and Shear Strength Prediction by Ultrasound1

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Chinese Physics Letters 2010年第6期27卷 118-121页

作者： LI Yong-An MAO Jie LI ming-Xuan WANG Xiao-min AN Zhi-Wu zhuang Qiao State Key Laboratory of Acoustics Institute of Acoustics Chinese Academy of Sciences Beijing 100190

The propagation of a longitudinal ultrasonic wave normally incident upon an adhesively bonded structure is stud- ied. The structure consists of adherend and adhesive layers with finite thickness. Interfaces between adherend and adhesive are regarded as distributed springs. Theoretical and experimental results show that resonant frequencies of the bonded structure vary sensitively with the interface stiffness constants and adhesive thickness, and these interface characteristics are inversed by the simulation annealing （SA） method. Furthermore, the distribution image of interface stiffnesses is compared with the state of fracture interface, and quantitative prediction of shear strength is achieved based on the distribution of interface stiffnesses and adhesive thicknesses by using a back- propagation neutral network. The average relative error of the shear strength from prediction to real value is 10.7%.

关键词： Ultrasonics Fractures Waves Adhesives Ultrasound imaging Numerical simulations

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Distribution and ecological effect of mercury in Laogang landfill,Shanghai,China

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Journal of Environmental Sciences 2007年第2期19卷 200-204页

作者： DING Zhen-hua TANG Qing-he LIU Cai-e WANG Wen-hua zhuang min LIN Yi-ming School of Life Sciences Xiamen University Xiamen 361005 China Key Laboratory of Industrial Biotechnology MEC Jiangnan University Wuxi 214036 China School of Environmental Science and Engineering Shanghai Jiaotong University Shanghai 200240 China College of Oceanography and Environmental Science Xiamen University Xiamen 361005 China

Laogang landfill near Shanghai is the largest landfill in China, and receives about 10000 t of daily garbage per day, Samples of topsoil and plants were analyzed to evaluate mercury pollution from the landfill. For topsoil samples, there were significant correlations among total mercury （HgT）, combinative mercury （Hgc） and gaseous mercury （HgG）, and content of total organic carbon （TOC）, but, no significantly relationship was found between Hg content and filling time. Hg content changes in vertical profiles with time showed that the average Hgv of profiles 1992, 1996, and 2000 was similar, but their average HgG was quite different. HgT was significantly correlated with Hgc in profile 1992 and 2000, and Hgv was significantly correlated with Hg6 in profile 1996. HgG/Hgv ratio in profile samples decreased in the order of （HgG,/HgT）1992〉（HgG/HgT）1996〉〉（HgG/HgT）2000. A simple outline of Hg release in landfill could be drawn： with increasing of filling time, degradation undergoes different biodegradation, accordingly, gaseous mercury goes through small, more, and small proportion to total mercury. Distribution of Hg in plants was inhomogeneous, following the order of leaf〉root〉stem. The highest value of leaf may be associated with higher atmospheric Hg from landfill. Ligneous plants （e.g. Phyllostachys glanca, Prunus salicina and Ligustrum lucidum） are capable of enriching more Hg than herbaceous plants.

关键词： mercury landfill distribution plant topsoil

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Prevention of hepatitis B in China： achievements and challenges

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Chinese Medical Journal 2009年第24期122卷 2925-2927页

作者： LU Feng-min zhuang Hui Department of Microbiology Peking University Health ScienceCenter Beijing 100191 China

Hepatitis B virus （HBV） infection has been an .important public health problem in *** to the Chinese Health Statistical Digest published by the ministry of Health of the People＇s Republic of China, the morbidity and mortality of viral hepatitis are the highest among the infectious diseases compulsorily reported to the authorities of public health. The average incidence rate of viral hepatitis is 50-100 per 100 000, i.e. 0.6-1.2 million acute viral hepatitis cases occur every year in the country. Among them, 25% are hepatitis B. There are estimated 93 million of chronic HBV carriers among its 1.3 billion population,

关键词： hepatitis B hepatitis B virus epidemiology prevention

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Evaluation of the safety and quality of day-case cataract surgery based on 4151 cases

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International Journal of Ophthalmology(English edition) 2019年第2期12卷 291-295页

作者： min zhuang Wen Fan Ping Xie Song-Tao Yuan Qing-Huai Liu Chen Zhao Department of Ophthalmology the First Affiliated Hospital with Nanjing Medical University Department of Ophthalmology the Fourth Affiliated Hospital of Nantong University (Yancheng No.1 People’s Hospital) Eye Institute Eye & ENT Hospital Shanghai Medical College Fudan University Shanghai Key Laboratory of Visual Impairment and Restoration Key Laboratory of Myopia of State Health ministry (Fudan University)

AIM: To evaluate the safety, quality and prospects of day-case cataract surgery performed in a Jiangsu public tertiary hospital METHODS: The general and clinical data for patients who underwent day-case cataract surgery between August 1, 2014 and December 31, 2016 at this hospital were collected. The incidences of intraoperative and postoperative complications, preoperative and postoperative bestcorrected visual acuities(BCVAs), delayed discharge rate, rate of unplanned re-admission to hospital, and patient satisfaction were analyzed. RESULTS: A total of 4151 patients received cataract phacoemulsification surgery to correct age-related, congenital, traumatic, or complicated cataracts. Of these, age-related cataracts were the most frequently occurring. Patient age ranged from 18 to 101 y and the vast majority of patients were between 60 and 80 years old. Of the 4151 patients, 64.73%(2687/4151) had a systemic disease. The number of patients increased over the years, with the average number of patients per month being 90.4, 124.83, and 183.42 in 2014, 2015 and 2016, respectively. The average preoperative BCVA was 0.102±0.057 and average postoperative BCVAs at 1 d, 1 wk, and 1 mo post surgery were 0.453±0.264, 0.657±0.285, and 0.734±0.244, respectively. For intraoperative complications, 4.12%(171/4151) had posterior capsule rupture, 0.79%(33/4151) had iris or ciliary body injury, and 0.048%(2/4151) had suprachoroidal hemorrhage. For postoperative complications, 4.38%(182/4151) had cornea edema, 7.78%(323/4151) had intraocular hypertension, 0.096%(4/4151) had IOL toxicity syndrome, 0.28%(12/4151) had retained lens cortex, and 0.048%(2/4151) had hyphema. The delayed discharge rate was 0.82%(44/4151) and the unplanned re-admission to the hospital was 0(0/4151). The patient satisfaction rate was 91.42%(3795/4151). CONCLUSION: Day-case cataract surgery is safe and effective with good prospects for development.

关键词： day-case cataract surgery medical safety medical quality complications re-admission rate satisfaction

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Management of hepatitis B in China

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Chinese Medical Journal 2009年第1期122卷 3-4页

作者： LU Feng-min zhuang Hui Department of Microbiology Peking University Health Science Center Beijing 100191 China

Hepatitis B virus （HBV） infection is a global public health problem. According to the data of WorldHealth Organization （WHO）, 2 billion people worldwide have been infected with HBV, and among them 350400 million are chronic HBV carriers. Hepatitis B causes about 1 million deaths of HBV related liver failure, cirrhosis, and hepatocellular carcinoma annually.

关键词： HBV 乙肝病毒乙型肝炎肝硬变

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轧制油中醇含量测定方法探索

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精细化工 2001年第5期18卷 300-301,304页

作者：庄敏琦集美轻工业学校福建厦门361022

采用非水滴定的原理对轧制油中醇 (主要为月桂醇 )的质量分数进行了测定。并通过正交实验确定了最佳测定条件 :在试液中加质量分数为 3%的高氯酸 0 6mL ,乙酰化试剂 1 30mL ,酰化15min ,加吡啶水溶液 4mL。比起旧方法 ,此法操作简单、... 详细信息

采用非水滴定的原理对轧制油中醇 (主要为月桂醇 )的质量分数进行了测定。并通过正交实验确定了最佳测定条件 :在试液中加质量分数为 3%的高氯酸 0 6mL ,乙酰化试剂 1 30mL ,酰化15min ,加吡啶水溶液 4mL。比起旧方法 ,此法操作简单、速度快捷 ,滴定终点清晰、成本低廉。

关键词：轧制油醇含量酰化水解高氯酸催化非水滴定

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DyPipe: A Holistic Approach to Accelerating Dynamic Neural Networks with Dynamic Pipelining

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Journal of Computer Science & Technology 2023年第4期38卷 899-910页

作者：庄毅敏胡杏陈小兵支天 State Key Laboratory of Processors Institute of Computing TechnologyChinese Academy of Sciences Beijing 100190China University of Chinese Academy of Sciences Beijing 100049China

Dynamic neural network(NN)techniques are increasingly important because they facilitate deep learning techniques with more complex network ***,existing studies,which predominantly optimize the static computational graphs by static scheduling methods,usually focus on optimizing static neural networks in deep neural network(DNN)*** analyze the execution process of dynamic neural networks and observe that dynamic features introduce challenges for efficient scheduling and pipelining in existing DNN *** propose DyPipe,a holistic approach to optimizing dynamic neural network inferences in enhanced DNN *** achieves significant performance improvements for dynamic neural networks while it introduces negligible overhead for static neural *** evaluation demonstrates that DyPipe achieves 1.7x speedup on dynamic neural networks and maintains more than 96%performance for static neural networks.

关键词： dynamic neural network(NN) deep neural network(DNN)accelerator dynamic pipelining

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