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A Tracking System Using Location Prediction and Dynamic Threshold for Minimizing SMS Delivery
Lai, Yuan-Cheng,Lin, Jian-Wei,Yeh, Yi-Hsuan,Lai, Ching-Neng,Weng, Hui-Chuan The Korea Institute of Information and Commucation 2013 Journal of communications and networks Vol.15 No.1
In this paper, a novel method called location-based delivery (LBD), which combines the short message service (SMS) and global position system (GPS), is proposed, and further, a realistic system for tracking a target's movement is developed. LBD reduces the number of short message transmissions while maintaining the location tracking accuracy within the acceptable range. The proposed approach, LBD, consists of three primary features: Short message format, location prediction, and dynamic threshold. The defined short message format is proprietary. Location prediction is performed by using the current location, moving speed, and bearing of the target to predict its next location. When the distance between the predicted location and the actual location exceeds a certain threshold, the target transmits a short message to the tracker to update its current location. The threshold is dynamically adjusted to maintain the location tracking accuracy and the number of short messages on the basis of the moving speed of the target. The experimental results show that LBD, indeed, outperforms other methods because it satisfactorily maintains the location tracking accuracy with relatively fewer messages.
Dynamical Control for the Parametric Uncertain Cancer Systems
Yi-Horng Lai,Lan-Yuen Guo,Kun-Ching Wang,Jau-Woei Perng 제어·로봇·시스템학회 2020 International Journal of Control, Automation, and Vol.18 No.9
In this study, we consider a parametric uncertain Lotka–Volterra cancer model including three interacting cell populations of tumor cells, healthy host cells and immune effector cells. The biological parameter (i.e., cell growth rate) is described as a form of the triangular fuzzy number. By using grade mean value conversion, the imprecise fuzzy parameter is translated into the degree of optimism (λ-integral value λ ∈ [0,1]) interval. We derive the sufficient conditions for the existence of the region of asymptotic stability (RAS) in the fuzzy cancer model. The boundary crisis of transient chaos and properties of RAS are investigated under fuzzy environment. We present a dynamical perturbation control to avoid uncontrolled tumor cell growth and prevent healthy cell extinction.
Weight Gain in Pregnancy, Maternal Age and Gestational Age in Relation to Fetal Macrosomia
( Yi Li ),( Qi-fei Liu ),( Dan Zhang ),( Ying Shen ),( Kui Ye ),( Han-lin Lai ),( Hai-qing Wang ),( Chuan-lai Hu ),( Qi-hong Zhao ),( Li Li ) 한국임상영양학회 2015 Clinical Nutrition Research Vol.4 No.2
To investigate the possible risk factors related to macrosomia. Pregnant women and their newborns (n = 1041) were recruited from a cohort study in Maternal and Child Care Center of Hefei from January 2011 to July 2012. Questionnaires were applied to collect the demographic data besides the medical records. Detailed health records of the entire pregnancy were obtained using retrospective study. Meanwhile the data of neonatal outcomes was prospectively tracked. Associations between exposure risk factors and macrosomia were analyzed using Pearson’s chi squared test. Logistic regression models were used to assess the independent association between these potential predictors and macrosomia. The incidence of macrosomia of this cohort was 11.24% of which male: female = 2.55:1. Male incidence (8.07%) of macrosomia was higher than female (3.17%), p < 0.001. Body mass index (BMI) before pregnancy (pre-BMI), maternal height, parity were not independently associated with macrosomia; multiple logistic regression analysis indicated that macrosomia was mainly independently associated with weight gain in pregnancy (OR=1.14,95% CI [1.10-1.19]), maternal age (OR = 1.09,95% CI [1.03-1.15]) and gestational age (OR = 1.62,95% CI [1.31-1.99]), respectively. Our findings indicate that weight gain in pregnancy, maternal age and gestational age should be considered as independent risk factors for macrosomia.
Lai, Yi An,Lai, I Hsiang,Tseng, Chi Feng,Lee, James,Mao, Simon J.T. Korean Society for Biochemistry and Molecular Biol 2007 Journal of biochemistry and molecular biology Vol.40 No.6
Human plasma Hp is classified as 1-1, 2-1, and 2-2. They are inherited from two alleles Hp 1 and Hp 2, but there is only Hp 1 in almost all the animal species. Hp 2-2 molecule is extremely large and heterogeneous associated with the development of inflammatory-related diseases. In this study, we expressed entire bovine Hp in E. coli as a $\alpha\beta$ linear form. Interestingly, the antibodies prepared against this form could recognize the subunit of native Hp. In stead of a complicated column method, the antibody was able to isolate bovine Hp via immunoaffinity and gelfiltration columns. The isolated Hp is polymeric containing two major molecular forms (660 and 730 kDa). Their size and hemoglobin binding complex are significantly larger than that of human Hp 2-2. The amino-acid sequence deducted from the nucleotide sequence is similar to human Hp 2 containing a tandem repeat over the $\alpha$ chain. Thus, the Hp 2 allele is not unique in human. We also found that there is one additional -SH group (Cys-97) in bovine $\alpha$ chain with a total of 8 -SH groups, which may be responsible for the overall polymeric structure that is markedly different from human Hp 2-2. The significance of the finding and its relationship to structural evolution are also discussed.
Yi-Ru Lai,Pei-Yu Lin,CHAO-YING CHEN,Chien-Jui Huang 한국식물병리학회 2016 Plant Pathology Journal Vol.32 No.5
Dithiocarbamate fungicides such as maneb and mancozebare widely used nonsystemic protectant fungicidesto control various plant fungal diseases. Dithiocarbamatefungicides should be frequently applied toachieve optimal efficacy of disease control and avoideither decline in effectiveness or wash-off from leafsurface. Dithiocarbamates are of low resistance riskbut have the potential to cause human neurological diseases. The objective of this study was to develop a strategyto effectively control plant disease with reduceduse of dithiocarbamtes. Southern corn leaf blight wasthe model pathosystem for the investigation. Whencorn plants were drench-treated with Bacillus cereusC1L, a rhizobacterium able to induce systemic resistancein corn plants against southern leaf blight, frequencyof spraying dithiocarbamate fungicides couldbe decreased. The treatment of B. cereus C1L was ableto protect maize from southern leaf blight while residuesof dithiocarbamates on leaf surface were too lowto provide sufficient protection. On the other hand,frequent sprays of mancozeb slightly but significantlyreduced growth of corn plants under natural conditions. In contrast, application of B. cereus C1L cansignificantly promote growth of corn plants whethersprayed with mancozeb or not. Our results provide theinformation that plant disease can be well controlledby rhizobacteria-mediated induced systemic resistancein combination with reduced but appropriate applicationof dithiocarbamate fungicides just before a heavyinfection period. An appropriate use of rhizobacteriacan enhance plant growth and help plants overcomenegative effects caused by dithiocarbamates.
Lai Yun-Ju,Sung Yi-Ting,Lai Yi-An,Chen Li-Nian,Chen Tung-Sheng,Chien Chiang-Ting 한국조직공학과 재생의학회 2022 조직공학과 재생의학 Vol.19 No.6
BACKGROUND: Liver inflammation is the main cause of severe liver diseases, including liver fibrosis, steatohepatitis, cirrhosis and hepatocellular carcinoma. Cell therapy topics are receiving increasingly more attention. The therapeutic applications of mesenchymal stem cells (MSC) have become one of the most discussed issues. While other stem cells have therapeutic effects, they have only one or two clinical applications. MSCs are responsible for repairing a variety of tissue injuries. Moreover, MSCs could be derived from several sources, including adipose tissue. MSCs are usually more abundant and easier to obtain compared to other stem cells. METHODS: To prove the concept that MSCs have homing ability to the injured tissue and assist in tissue repair, we examined the effects of intravenous injected adipose-derived mesenchymal stem cells (ADSCs) in a N-nitrosodiethylamine (DEN)-induced liver injury rat model. RESULTS: The significant repairing ability of ADSCs was observed. The levels of fibrosis, apoptosis, and tumorigenesis in the DEN-injured liver tissues all decreased after ADSC treatment. Furthermore, to enhance the therapeutic effects of ADSCs, we pretreated them with L-theanine, which promotes the hepatocyte growth factor secretion of ADSC, and therefore improved the healing effects on injured liver tissue. CONCLUSION: ADSCs, especially L-theanine-pretreated ADSCs, have anti-inflammation, anti-apoptosis, and anti-tumorigenesis effects on the N-nitrosodiethylamine-induced liver injury rat model.
Yi-Hsuan Chen,Yi-Hsiang Lai,Ping-Heng Wu,Li-Syuan Chen,Yung-Sen Lin,Chih-Ming Chen 한국공업화학회 2020 Journal of Industrial and Engineering Chemistry Vol.83 No.-
Surface metallization of polymer substrate andfilm adhesion are crucial to the development offlexibleelectronics. This study demonstrates the co-silanization engineering on the polyimide (PI)film by mutualintercropping of two organosilane molecules to improve their grafting orientability and enhance theadsorbability toward the PI substrate and loaded metal atoms. The mutual intercropping-inspired cosilanizationengineering is implemented by using 3-[(trimethylsilyl)ethynyl]pyridine (TEP) as asupporting organosilane to spatially confine the grafting orientation of the supported aminosilane, 3-[2-(2-aminoethylamino)ethylamino]propyl-trimethoxysilane (ETAS), leading to the formation of a wellorientedorganosilane composite nanolayer as adhesion promotion layer forflexible conductors. Theflexible Cu conductor electrolessly deposited on the PIfilm by co-silanization shows improved adhesionstrength (0.9 kgf/cm) compared to those based on mono-silanization (0.51 kgf/cm) and sputtered Ta/Cu(0.4 kgf/cm). Superior deformability (bendability) was also achieved for the co-silanized Cu/PI sample byretaining good electrical property after bending cycle up to 1000.