Space-Time Quantization and Motion-Aligned Reconstruction for Block-Based Compressive Video Sensing

( Ran Li ),( Hongbing Liu ),( Wei He ),( Xingpo Ma ) 한국인터넷정보학회 2016 KSII Transactions on Internet and Information Syst Vol.10 No.1

The Compressive Video Sensing (CVS) is a useful technology for wireless systems requiring simple encoders but handling more complex decoders, and its rate-distortion performance is highly affected by the quantization of measurements and reconstruction of video frame, which motivates us to presents the Space-Time Quantization (ST-Q) and Motion-Aligned Reconstruction (MA-R) in this paper to both improve the performance of CVS system. The ST-Q removes the space-time redundancy in the measurement vector to reduce the amount of bits required to encode the video frame, and it also guarantees a low quantization error due to the fact that the high frequency of small values close to zero in the predictive residuals limits the intensity of quantizing noise. The MA-R constructs the Multi-Hypothesis (MH) matrix by selecting the temporal neighbors along the motion trajectory of current to-be-reconstructed block to improve the accuracy of prediction, and besides it reduces the computational complexity of motion estimation by the extraction of static area and 3-D Recursive Search (3DRS). Extensive experiments validate that the significant improvements is achieved by ST-Q in the rate-distortion as compared with the existing quantization methods, and the MA-R improves both the objective and the subjective quality of the reconstructed video frame. Combined with ST-Q and MA-R, the CVS system obtains a significant rate-distortion performance gain when compared with the existing CS-based video codecs.

Li-Water Battery with Oxygen Dissolved in Water as a Cathode

Kim, Jae-Kwang,Yang, Wei,Salim, Jason,Ma, Chao,Sun, Chunwen,Li, Jianqi,Kim, Youngsik The Electrochemical Society 2014 Journal of the Electrochemical Society Vol.161 No.3

<P>In this work, we demonstrate a lithium-water battery that uses oxygen dissolved in water as a cathode, Sr<SUB>0.95</SUB>Ce<SUB>0.05</SUB>CoO<SUB>3-δ</SUB> (SCCO)-copper nanoparticles as an efficient bifunctional catalyst, and with hybrid electrolytes. The SCCO-Cu composite catalyst exhibits an efficient and stable bifunctional catalytic activity, especially for the OER. The round-trip efficiency of the cell with SCCO-Cu nanoparticles catalyst reaches 84.1%, close to that of the 50% Pt/carbon-black catalyst (87.2%). The improved performance of the SCCO-Cu catalyst can be ascribed to the synergetic effect of SCCO and copper. The preliminary results demonstrate that the rechargeable lithium-water battery with oxygen dissolved in water flow can be achieved with high efficient and low cost oxide catalyst. This can be a good candidate for a large stationary energy storage system (ESS) with a low-cost.</P>

A Robust Direction-selectable Edge-based Panel Cutting-Line Detection Algorithm

Wei Li(이위),Hakil Kim(김학일),Cheng-Bin Jin(김성빈),Mingjie Ma(마명걸),Qiongxiu Li(이경수),Jong-Hee Kim(김종희),Xuenan Cui(최학남) 대한전자공학회 2016 대한전자공학회 학술대회 Vol.2016 No.6

This paper proposes three robust detection algorithms for locating the cutting line in an image captured by a panel-cutting system. All of the proposed methods contain two stages: edge detection and line fitting. A designed step-edge operator is applied to detect edges in the search direction of interest depending on the intensity concentration. Meanwhile, the proposed line-fitting algorithm is able to precisely fit a line by minimizing the summation of L1 distance from each detected edge point to the fitted line. As the result, all of the proposed methods achieve accuracy of more than 85%. Going one step further, full-scale edge detection (FSED) obtains the best performance at 99.05%, which is evaluated by using a variety of real-world images.

Effects of Pluronic F68 and Labrasol on the Intestinal Absorption and Pharmacokinetics of Rifampicin in Rats

Li Ma,Xin'an Wu,Yuhui Wei,Yan Zhou,Xiaohua Ma 대한약학회 2011 Archives of Pharmacal Research Vol.34 No.11

The aim of this study was to investigate the effects of Pluronic F68 and Labrasol on the intestinal absorption and pharmacokinetics of rifampicin. Intestinal permeability of rifampicin with or without excipients was evaluated by an in situ single-pass perfusion method. A highperformance liquid chromatographic method was applied to study the pharmacokinetics of rifampicin with or without excipients. Labrasol or Pluronic F68 (0.1% and 0.05%, v/v), co-perfused with rifampicin (60 μg/mL), significantly increased in situ permeability. Similarly, verapamil (a typical P-gp inhibitor) also increased in situ permeability, but to a lesser extent. In vivo, the oral administration of rifampicin with or without Pluronic F68, Labrasol or verapamil resulted in statistically significant effect on t1/2 (4.83 to 7.75, 6.42 and 7.46 h) and total body clearance (0.46 to 0.26, 0.28, 0.24 L/h/kg). In addition, Pluronic F68, Labrasol and verapamil produced minor changes in AUC_0-t, which improved 1.55-, 1.54-, and 1.73-fold in comparison to control group, respectively. These results showed that Labrasol and Pluronic F68 might inhibit the function of P-gp in the intestine, thereby increasing intestinal absorption and changing the pharmacokinetic parameters of rifampicin. Therefore, excipient selection is an important factor to consider in rational formulation design.

Three new secoiridoid glycosides from the rhizomes and roots of Gentiana scabra and their anti-inflammatory activities.

Li, Wei,Zhou, Wei,Kim, Sohyun,Koo, Jung-Eun,Kim, Yuna,Koh, Young-Sang,Shim, Sang Hee,Ma, Jin Yeul,Ho Kim, Young Taylor & Francis Health Sciences 2015 NATURAL PRODUCT RESEARCH Vol.29 No.20

<P>Three new (1-3) and 17 known (4-20) iridoid and secoiridoid glycosides were isolated from a methanol extract of the rhizomes and roots of Gentiana scabra. Their chemical structures were elucidated from 1D and 2D NMR, IR absorption, and HR-ESI-MS spectra, as well as comparisons of these data with reported values. The effects of the isolated compounds on lipopolysaccharide (LPS)-stimulated bone marrow-derived dendritic cells were investigated. Compounds 6, 10 and 20 exhibited significant inhibitory effects on LPS-induced IL-12 p40 and IL-6 production with IC50 values of 1.62-14.29?μM. Compound 10 also showed a strong inhibitory effect on the LPS-stimulated production of TNF-α with an IC50 value of 10.45?μM.</P>

Soluble epoxide hydrolase inhibitory activity of phenolic components from the rhizomes and roots of Gentiana scabra.

Li, Wei,Kim, Jang Hoon,Zhou, Wei,Shim, Sang Hee,Ma, Jin Yeul,Kim, Young Ho Japan Society for Bioscience, Biotechnology, and A 2015 Bioscience, Biotechnology, and Biochemistry Vol.79 No.6

<P>Two new (1 and 2) and seven known phenolic compounds were isolated from a methanol extract of the rhizomes and roots of Gentiana scabra. Their structures were identified by spectroscopic analysis and comparing with reported values. The inhibitory effects of each compound on soluble epoxide hydrolase (sEH) were evaluated. Among them, compounds 2, 6, and 9 potently inhibited sEH activity.</P>

Clinical Evaluation of Tumor Markers for Diagnosis in Patients with Non-small Cell Lung Cancer in China

Ma, Li,Xie, Xiao-Wei,Wang, Hai-Yan,Ma, Ling-Yun,Wen, Zhong-Guang Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.12

Background: To evaluate the value of combined detection of serum carcinoembryonic antigen (CEA), cytokeratin 19 fragment (CYFRA21-1), and carbohydrateantigen 125 (CA125) for the clinical diagnosis of nonsmall cell lung cancer (NSCLC). Materials and Methods: Serum CEA, CYFRA21-1 and CA125 were assessed in 140 patients with NSCLC, 90 patients with benign lung disease and 90 normal control subjects, and differences of expression were compared in each group, and joint effects of these tumor markers in the diagnosis of NSCLC were analyzed. Results: Serum CEA, CYFRA21-1 and CA125 in patients with NSCLC were significantly higher than those with benign lung disease and normal controls (P<0.05). The sensitivity of CEA, CYFRA21-1 and CA125 were 49.45%, 59.67%, and 44.87% respectively. As expected, combinations of these tumor markers improved their sensitivity for NSCLC. The combined detection of CEA + CYFRA21-1 was the most cost-effective combination which had higher sensitivity and specificity in NSCLC. Elevation of serum CEA and CYFRA21-1 was significantly associated with pathological types (P<0.05) and elevation of serum CEA, CYFRA21-1 and CA125 was significantly associated with TNM staging (P<0.05). Conclusions: Single measurement of CEA, CYFRA21-1 and CA125 is of diagnostic value in the diagnosis of lung cancer, and a joint detection of these three tumor markers, could greatly improve the sensitivity of diagnosis on NSCLC. Combined detection of CEA + CYFRA21-1 proved to be the most economic and practical strategy in diagnosis of NSCLC, which can be used to screen the high-risk group.

Novel SNPs in the bovine Transmembrane protein 18 gene, their linkage and their associations with growth traits in Nanyang cattle

Wei Ma,Yun Ma,Dong Liu,Yuan Gao,Xiao-mei Sun,Ai-min Li,Chun-lei Zhang,Hong Chen 한국유전학회 2012 Genes & Genomics Vol.34 No.6

Transmembrane protein 18 (TMEM18) gene is expressed in the central nervous system that has recently been linked to human obesity and body mass index (BMI) in genome wide association studies (GWAS). In this study, two novel single nucleotide polymorphisms (SNPs), g.3835 G > A (aa. Gly >Ser) and g.3865 A > G were detected in cattle TMEM18 gene by DNA sequencing. Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) and forced PCR-RFLP methods were used to genotype the two SNPs in 1218 Chinese native cattle individuals. The association between novel SNPs and growth traits (especially on body weight and body height) in Nanyang cattle showed that individuals with GG genotype was higher than those with AA genotype at g.3835G>A locus (P < 0.05) in Nanyang cattle. Significant association also revealed that individuals of AA genotype at g. 3865 A>G locus were higher in terms of body weight, average daily gain, chest circunmference, body length (P < 0.05), body height and hucklebone width (P < 0.01) than GG genotypes in Nanyang cattle. Moreover, the effect of XspI-MluI combinations with growth traits in Nanyang cattle revealed that AAGG type had higher body weight, body length, chest circumference and average daily gain (P < 0.05)than GGAG in Nanyang cattle aged at 6 months.

Staged Improvement in Awareness of Disease for Elderly Cancer Patients in Southern China

Li, Xing,Dong, Min,Wen, Jing-Yun,Wei, Li,Ma, Xiao-Kun,Xing, Yan-Fang,Deng, Yun,Chen, Zhan-Hong,Chen, Jie,Ruan, Dan-Yun,Lin, Ze-Xiao,Wang, Tian-Tian,Wu, Dong-Hao,Liu, Xu,Hu, Hai-Tao,Lin, Jia-Yu,Li, Zhu Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.15

Background: In mainland China, awareness of disease of elderly cancer patients largely relies on the patients' families. We developed a staged procedure to improve their awareness of disease. Materials and Methods: Participants were 224 elderly cancer patients from 9 leading hospitals across Southern China. A questionnaire was given to the oncologists in charge of each patient to evaluate the interaction between family and patients, patient awareness of their disease and participation in medical decision-making. After first cycles of treatment, increased information of disease was given to patients with cooperation of the family. Then patient awareness of their disease and participation in medical decision-making was documented. Results: Among the 224 cancer elderly patients, 26 (11.6%) made decisions by themselves and 125 (55.8%) delegated their rights of decision-making to their family. Subordinate family members tended to play a passive role in decision-making significantly. Patients participating more in medical decision-making tended to know more about their disease. However, in contrast to the awareness of disease, patient awareness of violation of medical recommendations was reversely associated with their participation in medical decision-making. Improvement in awareness of diagnosis, stages and prognosis was achieved in about 20% elderly cancer patients. About 5% participated more actively in medical decision-making. Conclusions: Chinese elderly cancer patient awareness of disease and participation in medical decision-making is limited and relies on their family status. The staged procedure we developed to improve patient awareness of disease proved effective.

Effect of annealing temperature on resistive switching behavior of Al/ La0.7Sr0.3MnO3 /LaNiO3 devices

Li Juanfei,Wu Lei,Ma Mingyu,Song Ruifeng,Dong Chunhui,Wei Junfang,Li Jinsheng,Wang Xiaoqiang,Li Mingya 한국물리학회 2023 Current Applied Physics Vol.46 No.-

La0.7Sr0.3MnO3 (LSMO)/LaNiO3 (LNO) thin films were deposited successively on Si single crystal by the sol-gel method. The bipolar resistive switching (RS) behavior was studied in Al/LSMO/LNO devices. Obvious current hysteresis was observed, the set (reset) voltage and resistance ratio were modulated by the annealing temperature of LSMO thin films. At the annealing temperature of 750 ◦C, good endurance and retention performance were obtained in the memory device. According to the fitting results of I–V curves, based on Schottky emission model, the conduction mechanisms of Al/LSMO/LNO devices were discussed. Our results may give a valuable insight on developing perovskite-type rare earth manganese oxide.