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High Photon-Number Squeezing in Strong Field Limit

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Communications in Theoretical Physics 2006年第5期45卷 929-931页

作者： qian Feng huang Hong-Bin QI Guan-Xiao Department of Physics Southeast University Nanjing 210096 China

We show that high photon-number squeezing in bright light can be generated in both lasers and optical bistabilities by the injections of a squeezed vacuum and a classical field, and the high squeezing is maintained fo... 详细信息

关键词： photon number squeezing lasers and bistabilities

On the Physical Processes in Contact Binary Systems

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Chinese Journal of Astronomy and Astrophysics 2007年第2期7卷 235-244页

作者： Run-qian huang Han-Feng Song Shao-Lan Bi National Astronomical Observatories/Yunnan Observatory Chinese Academy of Sciences Kunming 650011 Graduate University of Chinese Academy of Sciences Beijing 100049

Three important physical processes occurring in contact binary systems are studied. The first one is the effect of spin, orbital rotation and tide on the structure of the components, which includes also the effect of meridian circulation on the mixing of the chemical elements in the components. The second one is the mass and energy exchange between the components. To describe the energy exchange, a new approach is introduced based on the understanding that the exchange is due to the release of the potential, kinetic and thermal energy of the exchanged mass. The third is the loss of mass and angular momentum through the outer Lagrangian point. The rate of mass loss and the angular momentum carded away by the lost mass are discussed. To show the effects of these processes, we follow the evolution of a binary system consisting of a 12M⊙ and a 5M⊙ star with mass exchange between the components and mass loss via the outer Lagrangian point, both with and without considering the effects of rotation and tide. The result shows that the effect of rotation and tide advances the start of the semi-detached and the contact phases, and delays the end of the hydrogen-burning phase of the primary. Furthermore, it can change not only the occurrence of mass and angular momentum loss via the outer Lagrangian point, but also the contact or semi-contact status of the system. Thus, this effect can result in the special phenomenon of short-term variations occurring over a slow increase of the orbital period. The occurrence of mass and angular momentum loss via the outer Lagrangian point can affect the orbital period of the system significantly, but this process can be influenced, even suppressed out by the effect of rotation and tide. The mass and energy exchange occurs in the common envelope. The net result of the mass exchange process is a mass transfer from the primary to the secondary during the whole contact phase.

关键词： stars binaries general - stars mass-loss - stars evolution

Limited thoracoplasty and free musculocutaneous flap transposition for postpneumonectomy empyema: A case report

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World Journal of Clinical Cases 2021年第27期9卷 8114-8119页

作者： qian-qian huang Zhong-Liang He Yong-Yong Wu Zhi-Jun Liu Operating Room Tongde Hospital of Zhejiang ProvinceHangzhou 310012Zhejiang ProvinceChina Department of Cardiothoracic Surgery Tongde Hospital of Zhejiang ProvinceHangzhou 310012Zhejiang ProvinceChina

BACKGROUND Empyema is a severe complication following pneumonectomy that is associated with high morbidity and mortality *** there are a wide variety of treatment options,successful management remains challenging when this condition is combined with a large cavity in very thin patients who had previously undergone a posterolateral *** SUMMARY We reported the case of a thin,63-year-old man with a progressive pulmonary cyst who underwent left pneumonectomy via posterolateral thoracotomy 23 years *** an initially uneventful postoperative course,he was readmitted with empyema and a large cavity 21 years after *** was successfully treated with limited thoracoplasty,followed by free vastus lateralis musculocutaneous flap *** This case highlights that the treatment mode of limited thoracoplasty and free vastus lateralis musculocutaneous flap transposition is safe and effective for the management of postpneumonectomy empyema with a large cavity in thin patients who had previously undergone a posterolateral thoracotomy.

关键词： Pneumonectomy Postpneumonectomy empyema Thoracoplasty Free muscle flap Surgical treatment Case report

The 2nd International Association of Neurorestoratology Annual Conference(IANAC) Summary

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Neuroscience Bulletin 2009年第4期25卷 229-232页

作者： Lin CHEN,Da-qian huang,Di CHEN,Hong-Yun huang

The 2nd International Association of Neurorestoratology Annual Conference （IANAC） was successfully held in Beijing, China, from April 24 to 26, 2009. More than 200 representatives from 30 countries and regions attended the meeting and carried out extensive academic communications and reached important consensus on many issues in neuroregeneration, neural structural repair, neural replacement, neuroprotection, neuromodulation, neurorehabilitation, neuroplasticity and other areas in the field of neurorestoratology. The genera/assembly adopted ＂Beijing Declaration of International Association of Neurorestoratology＂（Beijing Declaration） that was proposed by 32 scientists from 18 countries.

关键词： The 2nd International Association of Neurorestoratology Annual Conference IANAC Summary

Uptake and accumulation of di-n-butyl phthalate in six leafy vegetables under hydroponic conditions

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Food Production, Processing and Nutrition 2019年第1期1卷 44-50页

作者： Yong Li huang-qian Yan Xiang-yang Yu Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base Ministry of Science and Technology50 Zhongling StreetNanjing 210014China Institute of Food Safety and Nutrition Jiangsu Academy of Agricultural Sciences50 Zhongling StreetNanjing 210014China

The uptake and accumulation of di-n-butyl phthalate(DBP)in six leafy vegetables was investigated under hydroponic *** test vegetables were six varieties of Brassica campestris ssp.,including Kangresijiqing(KRSJQ),Xiadiqing(XDQ),Ziyoucai(ZYC),Aijiaohuang(AJH),Shanghaiqing(SHQ)and Gaogengbai(GGB).The root concentration factor(RCF),translocation factor(TF)and transpiration stream concentration factor(TSCF)were calculated in order to compare the difference of uptake and accumulation behaviours of DBP in vegetable *** results showed that DBP was easily concentrated in vegetable roots,but was poorly translocated from the roots to the *** the six vegetables,the ability of concentrating DBP from the solution to shoots was the highest in GGB,followed by ZYC,KRSJQ,AJH,SHQ and *** concentrations of DBP(5.0 mg/L)seem to inhibit normal physiological activity in the vegetables,which resulted in a higher RCF and a lower TF and TSCF than in low-concentration *** results will help to evaluate the safety of agricultural products and to provide evidence for screening DBP pollution-safe vegetable cultivars.

关键词： Di-n-butyl phthalate Root uptake Root concentration factor Translocation factor Transpiration stream concentration factor

Rapid determination of pharmaceuticals from multiple therapeutic classes in wastewater by solid-phase extraction and ultra-performance liquid chromatography tandem mass spectrometry

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Chinese Science Bulletin 2009年第24期54卷 4633-4643页

作者： SUI qian huang Jun DENG ShuBo YU Gang POPs Research Centre Department of Environmental Science and Engineering Tsinghua University Beijing 100084 China

A new analytical method utilizing ultra-performance liquid chromatography (UPLC) tandem mass spectrometry (MS/MS) has been developed to determine 16 pharmaceuticals from 8 therapeutic classes in wastewater: bezafibrate, clofibric acid, carbamazepine, caffeine, chloramphenicol, diclofenac, gemfibrozil, indomethacin, ketoprofen, mefenamic acid, metoprolol, nalidixic acid, N,N-diethyl-metatoluamide, propranolol, sulpiride and trimethoprim. Key parameters of MS/MS, UPLC and solid phase extraction (SPE) were optimized. In general, recovery of target pharmaceuticals was over 70% for the wastewater effluent samples and 50% for the influent samples. The effects of matrix suppression, loss during the pretreatment as well as instrument variability were successfully corrected by two internal standards, and acceptable relative recovery was obtained. Target compounds were quantitatively analyzed using multiple reaction monitoring (MRM) mode, and the detection limits ranged from 0.3 to 20 ng/L. A detailed study, matrix effect in effluent wastewater was also present. The method was applied to detecting pharmaceuticals in the wastewater from three wastewater treatment plants (WWTPs) in Beijing, China and the results demonstrated that most target compounds were detectable in both the influent and effluent, with the mean concentrations ranging from 20.5 to 5775.6 ng/L and 4.6 to 418.6 ng/L, respectively.

关键词：高效液相色谱串联质谱法固相萃取废水药品快速测定治疗污水处理厂

Microfluidic generation of egg-derived protein microcarriers for 3D cell culture and drug delivery

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Science Bulletin 2017年第18期62卷 1283-1290页

作者： Yuxiao Liu qian huang Jie Wang Fanfan Fu Jianan Ren Yuanjin Zhao State Key Laboratory of Bioelectronics School of Biological Science and Medical Engineering Southeast University Department of General Surgery Jinling Hospital Medical School of Nanjing University

Microcarriers have a demonstrated value for biomedical applications,in particular for drug delivery and three-dimensional cell *** to develop this technique tend to focus on the fabrication of functional microparticles by using convenient methods with innovative but accessible *** by the process of boiling eggs in everyday life,which causes the solidification of egg proteins,we present a new microfluidic‘‘cooking"approach for the generation of egg-derived microcarriers for cell culture and drug *** the egg emulsion droplets are formed with exquisite precision during the microfluidic emulsification,the resultant egg microcarriers present highly monodisperse and uniform morphologies at the size range of hundred microns to one *** from the excellent biocompatibility of the egg protein components,the obtained microcarriers showed good performances of cell adherence and *** addition,after a freezing treatment,the egg microcarriers were shown to have interconnected porous structures throughout their whole sphere,could absorb and load different kinds of drugs or other active molecules,and work as microcarrier-based delivery *** features point to the potential value of the microfluidic egg microcarriers in biomedicine.

关键词： Microfluidics Microcarriers Drug delivery Cell culture Egg white

Origin of pit chains in the floor of lunar Copernican craters

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Science China(Physics,Mechanics & Astronomy) 2010年第12期53卷 2145-2159页

作者： XIAO ZhiYong ZENG ZuoXun XIAO Long FA WenZhe huang qian Faculty of Earth Sciences China University of GeosciencesWuhan 430074China Research Center for Space Science and Technology China University of GeosciencesWuhan 430074China Institut de Physique du Globe de Paris 4 Avenue de NeptuneSaint Maur des Fosse’s94100France Shanghai Astronomical Observatory Chinese Academy of SciencesShanghai 200030China

There are small pit chains in the floor of lunar Copernican craters. They are usually so small in scale that there are few lunar spacecrafts to detect their detailed morphology. Combining camera data from Lunar Orbiter, Lunar Reconnaissance Orbiter (LRO), Kaguya and Chang’e-1 missions, 5 representative large Copernican craters on various terrains of the lunar surface are chosen to study the origin of the pit chains in the crater floor. The morphology and distribution characteristic of the pit chains are referred by the high resolution images in this research. It is suggested that it is the magma activities from the subsurface magma layer combining with the existence of fractures and faults under the crater floor that leaded the formation of the pit chains. The model is further verified and discussed using the regolith thickness data in the crater floor. Our model suggests that the pit chains are still developing in the floor of the Copernican craters and the Moon may not be totally cold. Finally, the model limitation and potential future work are discussed based on available data.

关键词： lunar Copernican crater pit chains LRO LROC Kaguya Chang’e-1

Sequential Experiment Design Method Based on Uniformity and Distortion of Responses

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Acta Mathematicae Applicatae Sinica 2023年第3期39卷 778-790页

作者： qian-yi huang Liang-wei QI Jing-ke ZHANG Yu TANG State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System(CEMEE) Luoyang 471003China School of Mathematical Sciences Soochow UniversitySuzhou 215006China

With the development of modern electronic countermeasure technology,the fight between radar jamming and anti-jamming in aviation military has become increasingly *** are some special requirements for radar countermeasure *** example,such experiments are often divided into several stages,and responses of the previous stages will become factors of the next ***,the experiment design can only consider some typical level values of the ***,the experiment factors are mostly continuous *** when there are some jumps in the response,and the value granularity of the factor level is large,the responses fail to reflect the distortion process,which makes it difficult to explore the radar performance ***,it is necessary to study the sequential experiment design method with the optimization goals of response uniformization and response distortion process *** this paper,a sequential experiment design strategy based on Kriging model is ***,Kriging model is used to fit the initial experimental data to obtain the response *** order to enhance the uniformity of response distribution,Shannon entropy is applied to the objective function as the measure of *** for the situation of response distortion,we consider replacing the existing experiment points with those whose corresponding responses have a larger gradient *** means that the response value near these points will change rapidly,so they are more valuable for *** we use the peak surface in the three-dimensional space to intuitively verify the effect of the above algorithms on response uniformization and response distortion process characterization,and use the simulated annealing algorithm to solve *** simulation results show that our sequential experiment strategy has a good ***,we apply the strategy to the practical problem of radar countermeasure experiment,and the obtained results

关键词： radar countermeasure experiments response distortion sequential experiment uniform distribution