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COMP ARISON OF MACROMOLECULAR COMPONENT DISTRIBUTIONS IN OSTEOARTHRITIC AND HEALTHY CARTILAGES BY FOURIER TRANSFORM INFRARED IMAGING

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Journal of Innovative Optical Health Sciences 2013年第4期6卷 84-90页

作者： jianhua yin YANG XIA ZHIYAN XIAO Department of Biomedical Engineering Nanjing University of Aeronautics and Astronautics Nanjing 210016 P.R.China Department of Physics and Center for Biomedical Research Oakland University RochesterMI 48309USA Department of Radiation Oncology Washington University School of Medicine St.Louis MO 63110USA

Fourier transform infrared imaging(FTIRI)was used to examine the depth-dependent content variations of macromolcular components,ollagen and protooglycan(PG),in osteoarthritic and healthy *** 6 pmm thick sections of canine knee cartilages were imaged at 6.25 pμrm pixel-size in *** analyzing the infrared(IR)images and spectra,the depth dependence of characteristic band(sugar)intensity of PG show obvious difference bet ween the cartilage sections of(OA)and *** result confimns that PG content decreases in the ostcoarthritic ***,no clear change occurs to collagen,suggesting that the OA influences little on the collagen content at early stage of *** observation will be helpful to further understand PG loss associated with pathological conditions in OA,and demonstrates that FIIRI has the po-tential to become an important analytical tool to identify early clinical signs of tissue degna-dation,such as PG loss even collagen disruption.

关键词： Macromolecular component osteoarthritis articular cartilage Fourier transform infrared imaging(FTIRI)

Acoustoelectric Nonlinear Effect of Vertically Incident Bulk Wave at LiNbO_(3)/Si Boundary

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Chinese Physics Letters 1993年第6期10卷 369-370页

作者： LI Wei yin jianhua SHUI Yongan Laboratory of Modern Acoustics Institute of AcousticsNanjing UniversityNanjing 210008

The acoustoelectric nonlinear effect due to the electrical nonlinearity of semi-conductor has been observed as presented in this article by using vertically incident bulk wave at LiNbO_(3)/Si *** effect is closely related to the bias voltage applied to the semiconductor *** results we have obtained provide a feasible new structure for the further study of acoustoelectric nonlinear coupling between piezoelectrics and semiconductors.

关键词： nonlinear nonlinearity piezoelectric

Low-Rank Optimal Transport for Robust Domain Adaptation

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IEEE/CAA Journal of Automatica Sinica 2024年第7期11卷 1667-1680页

作者： Bingrong Xu jianhua yin Cheng Lian Yixin Su Zhigang Zeng IEEE the School of Automation Wuhan University of TechnologyWuhan 430070China Intelligent Transportation Systems Research Center Wuhan University of TechnologyWuhan 430063 Chongqing Research Institute Wuhan University of TechnologyChongqingChina the School of Artificial Intelligence and Automation Huazhong University of Science and TechnologyWuhan 430074 the Key Laboratory of Image Processing and Intelligent Control of Education Ministry of China Wuhan 430074China

When encountering the distribution shift between the source(training) and target(test) domains, domain adaptation attempts to adjust the classifiers to be capable of dealing with different domains. Previous domain adaptation research has achieved a lot of success both in theory and practice under the assumption that all the examples in the source domain are welllabeled and of high quality. However, the methods consistently lose robustness in noisy settings where data from the source domain have corrupted labels or features which is common in reality. Therefore, robust domain adaptation has been introduced to deal with such problems. In this paper, we attempt to solve two interrelated problems with robust domain adaptation:distribution shift across domains and sample noises of the source domain. To disentangle these challenges, an optimal transport approach with low-rank constraints is applied to guide the domain adaptation model training process to avoid noisy information influence. For the domain shift problem, the optimal transport mechanism can learn the joint data representations between the source and target domains using a measurement of discrepancy and preserve the discriminative information. The rank constraint on the transport matrix can help recover the corrupted subspace structures and eliminate the noise to some extent when dealing with corrupted source data. The solution to this relaxed and regularized optimal transport framework is a convex optimization problem that can be solved using the Augmented Lagrange Multiplier method, whose convergence can be mathematically proved. The effectiveness of the proposed method is evaluated through extensive experiments on both synthetic and real-world datasets.

关键词： Domain adaptation low-rank constraint noise corruption optimal transport

Tumor therapy by fast moving magnetic nanoparticle under low-frequency alternating magnetic field

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Journal of Innovative Optical Health Sciences 2015年第2期8卷 52-60页

作者： Yangyang Liu Zhiyu Qian jianhua yin Xiao Wang Department of Biomedical Engineering Nanjing University of Aeronautics and Astronautics Nanjing P.R.China

Magnetic nanoparticle plays an important role in biomedical engineering,especially in tumor *** this paper,a new technique has been developed by using the rapid moving magnetic nanoparticle under a low-fequency alternating magnetic field(LFAMF)to kill tumor *** LFAMF system which was used to drive magnetic nanoparticles(MNPs)was setup with the magnetic field frequency and power range at心10-100Hz and~10-200 mT,*** the experiment,the LFAMF was adjusted at different frequencies and power *** exper-imental results show that the liver tumnor cells(HepG2)mixed with MNPs(10 pug/mL)becamne partial fragments when exposed in the LFAMF with different frequencies(~10-100Hz)and power(~10200 mT),and the higher the frequency or the power,the more the tumor cells were killed at the same magnetic nanoparticle ***:Tumor oells were effectively damaged by MNPs under LFAMF,which suggests that they had great potential to be applied in tumor therapy.

关键词： Different frequency cells power cancer

THE GENERATION OF BULK ACOUSTIC WAVES BY INTERDIGITAL TRANSDUCER

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Chinese Physics Letters 1989年第10期6卷 461-464页

作者： yin jianhua SHUYongan JIANG Wenhua Institute of Acoustics Nanjing UniversityNanjing

A simple method has been presented to analyse the generation of bulk acoustic waves(BAWs)by inter digital transducers(IDTs)on piezoelectric substrate,From calculation results with this method,we have found the strongest BAWs generation on Y-13CPcut X-9CPpropagating *** theoretical and experimental results for LiNbO^with different orientations have been given.

关键词： piezoelectric propagating method

Investigation on solidified/stabilized behavior of marine soil slurry by lime-activated incinerated sewage sludge ash-ground granulated blast furnace slag under multifactor conditions

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JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING 2024年第12期16卷 5264-5277页

作者： Sun, Zhao Chen, Wenbo Zhao, Rundong Malik, Numan yin, jianhua Chen, Yonggui Hong Kong Polytech Univ Dept Civil & Environm Engn Kowloon Hong Kong 999077 Peoples R China Tongji Univ Sch Civil Engn Dept Geotech Engn Shanghai 200092 Peoples R China Shenzhen Univ Coll Civil & Transportat Engn Shenzhen 518071 Peoples R China

This study aims to evaluate the possibility of reusing treated marine clayey soils by stabilization/solidification (S/S) technology as geomaterial in reclamation projects from the aspects of engineering strength, chemical modification and environmental risk assessment. The lime-activated incinerated sewage sludge ash (ISSA) together with ground granulated blast furnace slag (GGBS) was employed as the binder. The multi-controlling factors including water content, curing time, salinity, and chemical compositions of mixing solution were taken into account to identify the S/S treated Hong Kong marine deposit (HKMD) slurry based on the strength tests, pH measurement, thermo-gravimetric (TG) analysis, X-ray diffractometer (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy coupled with energy-dispersive spectrometry (SEM-EDS) and toxicity characteristic leaching procedure (TCLP) tests, etc. The results show that the S/S treatment using lime-activated ISSA-GGBS can effectively enhance the strength of marine soil at the initial water content of 110% and 200%. The water content and curing time have a significant impact on the S/S treated HKMD. The pH of treated soils is higher than 11.1, which proves an alkaline environment for the reactions in the treated soil. A special case is the treated HKMD at 200% water content hydrated by MgCl2 solution, which has a low pH of 10.23 and maintains a slurry state. Based on the TCLP results, the leaching concentration of heavy metals from S/S treated HKMD is environmentally safe and meets Hong Kong standard for reusing treated soil with a low level of <0.2 mg/L. The content of main products such as calcium/magnesium silicate hydrate, ettringite or Friedel's salt depends on the chemical additions (e.g. distilled water, seawater, NaCl and Na2SO4). The products in the specimens mixed with MgCl2 solutions are mainly composed of Mg(OH)(2), M-S-H and MgCO3, which is distinct with the neoformations in the other c

关键词： Hong Kong marine deposits Stabilization/solidification Engineering strength Physicochemical property Environmental risk assessment

Development of a monitoring and warning system based on optical fiber sensing technology for masonry retaining walls and trees

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Journal of Rock Mechanics and Geotechnical Engineering 2022年第4期14卷 1064-1076页

作者： Peichen Wu Daoyuan Tan Shaoqun Lin Wenbo Chen jianhua yin Numan Malik An Li Department of Civil and Environmental Engineering The Hong Kong Polytechnic UniversityHong KongChina

Hong Kong has a long history of applying masonry retaining walls to provide horizontal platforms and stabilize man-made *** to the sub-tropical climate,some masonry retaining walls are colonized by *** weather,such as typhoons and heavy rains,may cause rupture or root failure of those trees,thus resulting in instability of the retaining walls.A monitoring and warning system for the movement of masonry retaining walls and sway of trees has been designed with the application of fiber Bragg grating(FBG)sensing *** monitoring system is also equipped with a solar power system and 4G data transmission *** key functions of the proposed monitoring system include remote sensing and data access,early warning,and real-time data *** setups and working principles of the monitoring systems and related transducers are *** feasibility,accuracy,serviceability and reliability of this monitoring system have been checked by in-site calibration tests and four-month ***,a two-level interface has been developed for data *** monitoring results show that the monitored masonry retaining wall had a reversible movement up to 2.5 mm during the monitoring ***,it is found that the locations of the maximum strain on trees depend on the crown spread of trees.

关键词： Masonry retaining walls Tree Monitoring Fiber Bragg grating(FBG)sensing Warning system

The study of human health effect induced by depth information of stereo vision film

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Journal of Innovative Optical Health Sciences 2015年第5期8卷 31-39页

作者： Xiao Wang Zhiyu Qian Lidong Xing Shuai Jin Baoyu Liu Zhongqiang Li jianhua yin Nanjing University of Aeronautics and Astronautics Nanjing P.R.China

The stereo vision results from the interaction between geometrical optics and visual *** depth will bring discomforts for the results of ghosting and *** relevance of the ratio of jumping out depth(RJD)and electroencephalogram(EEG)gravity frequency(GF)was explored to re flect human health under di®erent three-dimensional(3D)depth information(mainly the negative disparity)displayed on a three-dimensional television(3D-TV)with shutter *** was obtained from 10 volunteers when they were watching 3D film segments with di®erent negative *** brain GF map shows that the depth information has a stronger in fluence on the frontal lobe than on the occipital *** regression analysis,nonlinear curve fittings of GF to RJD in Fp1,F3,O2 and T5 channels were mainly performed when RJD ranged from 0 to 3.4,while linearfittings were performed in some special RJD *** also confirms that RJD above 2.2 may lead to discomfort to human ***,it suggests a suitable RJD range for people to watch from the objective *** outcomes can be used as a guidance to decrease human discomforts induced by 3D production.

关键词： 3D-TV negative disparity human discomfort

A characterization for a graphic sequence to be potentially C_r-graphic

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Science China Mathematics 2010年第11期53卷 2893-2905页

作者： yin jianhua Department of Mathematics, College of Information Science and Technology, Hainan University, Haikou 570228, China 1. Department of Mathematics College of Information Science and Technology Hainan University Haikou 570228 China

Let r 3, n r and π = (d1, d2, . . . , dn) be a graphic sequence. If there exists a simple graph G on n vertices having degree sequence π such that G contains Cr (a cycle of length r) as a subgraph, then π is said to be potentially Cr-graphic. Li and yin (2004) posed the following problem: characterize π = (d1, d2, . . . , dn) such that π is potentially Cr-graphic for r 3 and n r. Rao and Rao (1972) and Kundu (1973) answered this problem for the case of n = r. In this paper, this problem is solved completely.

关键词： graph cycle degree sequence