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Dong-xia Zhao,Dong-xia Fan,Ya-ping Guo 제어·로봇·시스템학회 2022 International Journal of Control, Automation, and Vol.20 No.8
In this paper, the well-posedness and stability of a 1-d 2×2 hyperbolic system under proportional feedback control is addressed. The semigroup approach and norm equivalence theorem is adopted to obtain the explicit dissipative condition for control parameters. The asymptotic spectral analysis of the system is presented. It is shown that the real part of the eigenvalues goes to some negative constant as the modulus of eigenvalues goes to +∞. Moreover, we find that there is a group of generalized eigenfunctions which forms a Riesz basis of the Hilbert state space. Hence, the spectrum determined growth condition holds, and then the exponential stability is established.
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Aberrant Expression of HOXA5 and HOXA9 in AML
Zhao, Peng,Tan, Li,Ruan, Jian,Wei, Xiao-Ping,Zheng, Yi,Zheng, Li-Xia,Jiang, Wei-Qin,Fang, Wei-Jia Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.9
Background: Aberrant expression of HOX gene expression has been observed in cancer. The purpose of this study was to investigate the alteration of HOXA5 and HOXA9 expression and their clinical significance in acute meloid leukemia (AML). Materials and Methods: The expression of HOXA5 and HOXA9 genes of bone marrow samples from 75 newly diagnosed AML patients and 22 healthy controls for comparison were examined by Real-time quantitative PCR (RQ-PCR) assay. Statistical analysis was conducted to evaluate HOXA5 and HOXA9 expression as possible biomarkers for AML. Results: The results showed that the complete remission rate (52.6%) of the patients who highly expressed HOXA5 and HOXA9 was significantly lower than that (88.9%) in patients who lowly express the genes (P=0.015). Spearmann correlation coefficients indicated that the expression levels for HOXA5 and HOXA9 genes were highly interrelated (r=0.657, P<0.001). Meanwhile, we detected significant correlations between HOXA9 expression and age in this limited set of patients (P=0.009). Conclusions: The results suggest a prognostic impact of increased expression of HOXA5 and HOXA9 in AML patients.
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Cordblood-Based High-Throughput Screening for Deafness Gene of 646 Newborns in Jinan Area of China
Shou-Xia Li,Ding-Li Chen,Su-Bin Zhao,Li-Li Guo,Hai-Qin Feng,Xiao-Fang Zhang,Li-Li Ping,Zhi-Ming Yang,Cai-Xia Sun,Gen-Dong Yao 대한이비인후과학회 2015 Clinical and Experimental Otorhinolaryngology Vol.8 No.3
Objectives. Infants with slight/mild or late-onset hearing impairment might be missed in universal newborn hearing screening (UNHS). We identified the mutation hot spot of common deaf gene in the newborns in Jinan area population by screening the mutation spot with neonate cord blood, in order to make clear whether the neonate cord blood for screening is feasible. Methods. Six hundred and forty-six newborns were subjected to both UNHS and genetic screening for deafness by using neonate cord blood. The newborn genetic screening targeted four deafness-associated genes, which were commonly found in the Chinese population including gap junction beta-2 protein (GJB2), gap junction beta-3 protein (GJB3), solute carrier family 26 member 4 (SLC26A4), and mtDNA 12S rRNA. The most common 20 spot mutations in 4 deaf genes were detected by MassARRAY iPLEX platform and mitochondrial 12S rRNA A1555G and C1494T mutations were sequenced using Sanger sequencing. Results. Among the 646 newborns, 635 cases passed the UNHS and the other 11 cases (1.7%) did not. Of the 11 failures, two cases were found to carry homozygous GJB2 p.R143W pathogenic mutation, one case was found to have heterozygous GJB2 235delC mutation, and another one case carried heterozygous GJB3 p.R180X pathogenic mutation. Six hundred and thirty-five babies passed the newborn hearing screening, in which 25 babies were identified to carry pathogenic mutations, including 12 heterozygotes (1.9%) for GJB2 235delC, eight heterozygotes (1.3%) for SLC26A4 IVS7-2A>G, one heterozygote (0.2%) for p.R409H, two homozygotes (0.3%) for m.1494C>T, and two homozygotes (0.3%) for m.1555A>G. Conclusion. Newborn genetic screening through the umbilical cord blood for common deafness-associated mutations may identify carriers sensitive to aminoglycoside antibiotic, and can effectively prevent or delay hearing loss occurs.
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Xiao-Ping Yin,Bu-Lang Gao,Cai-Ying Li,Huan Zhou,Liang Zhao,Ya-Ting Zheng,Yong-Xia Zhao 대한영상의학회 2018 Korean Journal of Radiology Vol.19 No.4
Objective: To investigate the efficiency of spectral computed tomography (CT) optimal monochromatic images in improving imaging quality of liver vessels. Materials and Methods: The imaging data of 35 patients with abdominal CT angiography were retrospectively analyzed. Hepatic arteries, portal veins, and hepatic veins were reconstructed with mixed energy (quality check, QC), 70 keV and optimal monochromatic mode. Comparative parameters were analyzed including CT value, image noise (IN), contrast-to-noise ratio (CNR), signal-to-noise ratio (SNR), and subjective qualitative analysis. Results: The optimal monochromatic value for assessment of the common hepatic artery, portal vein, and hepatic vein ranged between 49 keV and 53 keV, with a mean of 51 keV. There were statistically significant differences (p < 0.001) among the optimal monochromatic, 70 keV and QC images with regards to the hepatic vascular CT value, IN, CNR, SNR, and subjective qualitative score. CNR of the common hepatic artery in the optimal monochromatic, 70 keV and QC groups was 24.6 ± 10.9, 18.1 ± 8.3, and 11.6 ± 4.6, respectively (p < 0.001) with subjective scores of 4.7 ± 0.2, 4.0 ± 0.3, and 3.6 ± 0.4, respectively (p < 0.001). CNR of the hepatic portal vein was 6.9 ± 2.7, 4.3 ± 1.9, and 3.0 ± 2.1, respectively (p < 0.001) with subjective scores of 4.5 ± 0.3, 3.9 ± 0.4, and 3.3 ± 0.3, respectively (p < 0.001). CNR of the hepatic vein was 5.7 ± 2.3, 4.2 ± 1.9, and 2.7 ± 1.4, respectively with subjective scores of 4.3 ± 0.3, 3.8 ± 0.4, and 3.2 ± 0.3, respectively (p < 0.001). Conclusion: Optimal monochromatic images can lead to improvement in the imaging parameters and optimization of the image quality of the common hepatic artery, hepatic portal vein and hepatic vein compared with conventional mixed kV and with 70 keV datasets.
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Dong-Xia Zhao,Jun-Min Wang,Ya-Ping Guo 제어·로봇·시스템학회 2019 International Journal of Control, Automation, and Vol.17 No.1
This paper addresses the exponential stability for an interconnected system of an nth-order ODE systemwith the input governed by the Dirichlet boundary of a heat equation, and conversely, the output of the ODE isfluxed into the heat equation. The semigroup approach is adopted to show that the system operator is well-posed. We establish the exponential stability of the system by Riesz basis method. Furthermore, with MATLAB software,some numerical simulations are presented to show the effectiveness of the interconnection between the heat PDEand ODE systems.
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Xu-mei Zhao,Xiao-Ming Chen,Jian Wang,Xiao-xia Liang,Jian-Ping Zhou,Peng Liu 한양대학교 세라믹연구소 2015 Journal of Ceramic Processing Research Vol.16 No.1
The lead-free ceramics (Na0.54Bi0.5)0.94Ba0.06Ti1+xO3 with x = −0.02, 0, 0.02, and 0.04 were prepared by a solid-state reaction method. Effects of Ti4+ nonstoichiometry on crystallite structure, microstructure, dielectric, ferroelectric and piezoelectric properties were studied. The ceramics with x = −0.02 and 0 exhibit typical diffraction peaks of perovskite structure. A secondary phase appears in the ceramics with x = 0.02 and 0.04. The rhombohedral-tetragonal morphotropic phase boundary exists in all samples, and the relative amount of the tetragonal phase changes with the increase in the Ti4+ amount from deficiency to excess. Grain sizes and shape of the ceramics are unaffected by changes in Ti4+ nonstoichiometry. But, dielectric, ferroelectric and piezoelectric properties of the ceramics are close related to the Ti4+ amounts. Compared with the ceramic with x = 0, the ceramics with the Ti4+ nonstoichiometry have higher depolarization temperature, lower maximum dielectric constant, decreased piezoelectric constant and ferroelectric properties.
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Yan-Li Zhao,Yong-Ping Yang,Si-Feng Wang,Yang Li,Qiu-Xia He,Ke-Chun Liu,Xiao-Li Li 대한약학회 2011 Archives of Pharmacal Research Vol.34 No.5
Phytochemical investigation of Verbascum thapsus led to the isolation and identification of one new iridoid compound named verbathasin A, along with ten known compounds. The structure and relative stereochemistry of verbathasin A were elucidated by analysis of spectroscopic data. All the isolates except 10-deoxyeucommiol and ajugol were tested for antiangiogenic and antiproliferative activities, and compounds luteolin and 3-O-fucopyranosylsaikogenin F showed promising antiproliferative activities, with an obvious effect of inducing apoptosis of A549 lung cancer cells.
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Zhang, Gang,Xia, Tian,Zhao, Jinbiao,Liu, Ling,He, Pingli,Zhang, Shuai,Zhang, Liying Asian Australasian Association of Animal Productio 2020 Animal Bioscience Vol.33 No.2
Objective: Two experiments were conducted to evaluate tetrabasic zinc chloride (TBZC) on the health of weaned pigs, and to determine the optimal supplemental concentrations and whether dietary TBZC could replace the pharmacological concentrations of dietary zinc oxide (ZnO) to improve growth performance and decrease Zn excretion in weaned pigs. Methods: In Exp. 1, 180 weaned pigs (8.92±1.05 kg body weight [BW]) were randomly assigned to 1 of 5 treatments, including the basal diet containing 125 mg/kg zinc sulfate (ZnSO<sub>4</sub>), and the basal diet with 1,200, 1,800, 2,400, or 3,000 mg/kg TBZC supplementation. In Exp. 2, 240 weaned pigs (7.66±1.09 kg BW) were randomly assigned to 1 of 5 treatments, including a negative control diet without Zn supplementation, a positive control diet (2,250 mg/kg ZnO), and 3 experimental diets with different concentrations of TBZC supplementation (1,000, 1,250, and 1,500 mg/kg). Results: In Exp. 1, the average daily gain (ADG), feed efficiency (G:F) and diarrhea incidence responded quadratically (p<0.01) as the TBZC supplemental concentrations increased, and pigs fed 1,200 and 1,800 mg/kg TBZC showed the best growth performance. Moreover, 1,800 mg/kg TBZC supplementation showed the greatest (p<0.01) total antioxidant capacity and glutathione peroxidase activities in liver of pigs. Histopathological examination revealed lesions in heart, liver, lung and kidney, and mild or severe histological lesions mainly occurred with the supplementation of 2,400 and 3,000 mg/kg TBZC. In Exp. 2, 1,000 and 1,250 mg/kg TBZC supplementation in diets significantly (p<0.01) increased ADG and G:F of weaned pigs, reduced Zn excretion in feces, and had no effect on diarrhea-reducing compared to 2,250 mg/kg ZnO supplementation. Conclusion: The TBZC is a potential alternative to ZnO. The recommended concentration of TBZC in weaned pig diets is 1,000 to 1,250 mg/kg.
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Hong Yu,Ping Zhao,Jingjing Xia 글로벌지식마케팅경영학회 2014 Global Marketing Conference Vol.2014 No.8
Introduction Over the past 30 years, Chinese textile and clothing manufacturers have successfully established themselves as leading original equipment manufacturers (OEMs) for world markets. This reputable position requires dedicated cost management; however, incremental increases in labor, land prices, rent, and production costs in China threaten and may eventually eliminate their OEM advantage (Yam, Lo, Sun, & Tang, 2003). The worldwide economic and business recession has intensified cost cutting measures as the essential survival tool for maintaining competitiveness. Since the mid-1990s, many Chinese companies have begun to recognize the importance of developing their own global brands and moving up the value-creation ladder (Fan, 2006). One such company is Aimer Group, Ltd., a vertically integrated premium underwear manufacturer. Initially founded in 1993 as an OEM, Aimer quickly transitioned to establish its own brands in domestic markets and, in recent years, has ventured into international markets. Currently, Aimer and its umbrella product lines are among the most recognized underwear brands in China with a manufacturing capacity of 10 million pieces. Their merchandise includes an array of women’s, men’s, teen girl’s and children’s lines as well as custom-made lingerie. According to the Chinese General Chamber of Commerce, Aimer Group has maintained the highest market share and the largest sales volume in the underwear sector for several years in China’s markets (Aimer, 2011). Objectives The purpose of the study was to investigate the design strategies implemented by Aimer to support their successful branding efforts. Specifically, the researchers seek to find: (a) the core elements in Aimer’s design strategies; (b) Aimer designers’ approach to product development; and (c) How design strategies support Aimer’s overall branding and marketing strategies. Findings will provide valuable implications for other Chinese apparel manufacturers who strive to integrate design innovation in order to remain competitive. Research Method A case study method was implemented which included: on-site visits to Aimer Group’s headquarters, manufacturing facility, and retail stores in Beijing; in-depth interviews with Aimer Groups’ Chairman, senior management, Chief Design Officer, designers, retail store managers, and the general manger of the Beijing manufacturing facility; and a review of the company website and other internal documents, as well as an extensive external search of relevant news reports, social media contents, industry information, and academic literature. A qualitative data analysis method was utilized. Findings Aimer brands have grown and matured along with the Chinese consumers. Until the late 1990s, consumers passively accepted whatever the industry provided for them. Today, 15 years later, consumers have become keenly aware of what they want in underwear and that desire drives the industry’s new product development. Aimer’s design strategies are consumer-centric but also a reflection of its internal strategic direction. Its core elements include the following: (1) Understanding consumer lifestyles: Extensive fashion industry trend analysis, consumer research, and market/sale feedback are just starting points for product development at Aimer. In addition, they use broader consumer lifestyle analysis, including an examination of new technology trends, consumer preferences for jewelry, cosmetics, car and cell phone designs, popular video/computer games, consumers’ financial management behaviors, and societal hot topics as a way of guiding product design. (2) Innovation: Innovation is of paramount importance in Aimer’s product development. They have maintained active partnerships with international suppliers and Research & Development teams to ensure the latest fiber discoveries, fabric developments, and pattern engineering technology are incorporated into new product design. (3) Tradition preserved and reinvented: Aimer brands keep certain essential elements integral to their overall style, reinventing and integrating heritage elements into new designs. By doing so, brand history is enriched and continuity sustained. Aspers (2010) suggests that product development must embrace contextual knowledge: the designer’s general knowledge of fashion and their lifeworld. Each domain is used to interpret fashion. A designer’s lifeworld comprises their inherent values and beliefs, presenting challenges when creating products for consumers who live in different lifeworld. Aimer’s solutions to the challenge include the following: (1) Designers as entrepreneurs: Designers are trained to be entrepreneurs who must think of design not only from creative aspects but also within a business context. The company has established effective protocols for new product design and adoption procedures and standards; meanwhile, designers are provided with weekly sales records as market feedback to guide their future design directions. They are also given opportunities on a regular basis to travel to various international and domestic markets to gain first-hand experience and knowledge of fashion trends and consumers. (2) Teamwork: Designers from various regions of China and internationally are grouped in teams and assigned to work together on brands. This provides ample opportunity for them to interact and learn from each other so that their lifeworld is expanded. Branding literature suggests that consumer’s individual and shared brand experiences affect a consumer-brand relationship (Chang, Long, Chieng, & Hua, 2006) which is of critical importance to brand loyalty. Aimer’s design strategies support its branding and marketing strategies by: (a) contributing to consumers’ positive, consistent, and multi-dimensional brand knowledge as a part of the brand-leveraging process (Keller, 2003); (b) providing value-added product and service features to enhance brand-augme
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