PROPERTIES ON q-DIFFERENCE RICCATI EQUATION

Huang, Zhi-Bo,Zhang, Ran-Ran Korean Mathematical Society 2018 대한수학회보 Vol.55 No.6

In this paper, we investigate a certain type of q-difference Riccati equation in the complex plane. We prove that q-difference Riccati equation possesses a one parameter family of meromorphic solutions if it has three distinct meromorphic solutions. Furthermore, we find that all meromorphic solutions of q-difference Riccati equation and corresponding second order linear q-difference equation can be expressed by q-gamma function if this q-difference Riccati equation admits two distinct rational solutions and $q{\in}{\mathbb{C}}$ such that 0 < ${\mid}q{\mid}$ < 1. The growth and value distribution of differences of meromorphic solutions of q-difference Riccati equation are also treated.

CONSUMERS’ NARRATIVE TRANSPORTATION IN LUXURY BRAND ADVERTISING

Ran Huang,Sejin Ha 글로벌지식마케팅경영학회 2016 Global Marketing Conference Vol.2016 No.7

The popularity of visual communication in social network sites (SNS) can guide an important question about its effectiveness and the optimization for luxury brand advertising: How do visual communication messages via SNS work for consumer information processing and their evaluation of luxury hotels? To address this question, we examine consumer information processing in SNS in which visual communication messages work as narratives based on narrative transportation theory (Green & Brock, 2002; van Laer, Ruyter, Visconti, & Wetzels, 2014). Specific purposes are: (1) to identify key features of consumer information processing as narrative persuasion (i.e., narrative transportation), (2) to examine how consumers’ perceptions of fluency with visual messages (i.e., comprehension fluency and imagery fluency) influence the narrative persuasion process, and (3) to explore how the narrative persuasion process develops consumer responses with respect to positive affect and visit intention. First, we predict that increased fluency of information processing (comprehension fluency and imagery fluency) would increase narrative transportation. Second, increased narrative transportation would increase affective response and visit intention. Lastly, as for the two consequences, we predict that affective response would positively affect visit intention. A web-based survey was used for data collection. Measurement items of research variables were adapted from previous studies. A total of 193 usable responses were recruited from Amazon Mechanical Turk. Participants were directed to explore one randomly assigned luxury hotel Instagram page (Four Seasons or Ritz Carlton) and complete the questionnaire based on the experience. Results showed that comprehensive fluency, rather than imagery fluency, has significant impact on narrative transportation. Narrative transportation in turn influences affective response and visit intention; affective response influences visit intention. Additional tests suggest that narrative transportation and affective response play a mediating role in the narrative persuasion process. These findings highlight the power of narrative transportation in advertising for luxury brands, advising that marketers need to put efforts on enhancing visual storytelling in SNS communication.

Meromorphic solutions of a complex difference equation of Malmquist type

Ran-Ran Zhang,Zhibo Huang 대한수학회 2014 대한수학회보 Vol.51 No.6

In this paper, we investigate the finite order transcendental meromorphic solutions of complex difference equation of Malmquist type n ∏ i=1 f(z + ci) = R(z, f), where c1, . . ., cn ∈ C\ {0}, and R(z, f) is an irreducible rational function in f(z) with meromorphic coefficients. We obtain some results on defi- ciencies of the solutions. Using these results, we prove that the growth order of the finite order solution f(z) is 1, if f(z) has Borel exceptional values a(∈ C) and 1. Moreover, we give the forms of f(z).

WHEN CONSUMERS READ HOW COMPANY HANDLES CUSTOMER COMPLAINTS ONLINE: THE INTERPLAY OF RETAILER RESPONSE AND AUDIENCE POWER

Ran Huang,Sejin Ha 글로벌지식마케팅경영학회 2018 Global Marketing Conference Vol.2018 No.07

In the era of digital retailing, consumer-empowering technologies greatly facilitate the dissemination of complaint messages. Consumer audiences, who view consumer complaints and the subsequent responses made by retailers, consider these messages as critical information sources for decision-making (Weitzl & Hutzinger, 2017). We argue that retailers can use two types of response strategies (warmth- vs. competence-related response) to regulate the information distributed online, and that these strategies may influence consumer audiences’ perceptions and subsequent attitudes and behaviors differently based on their different levels of power (Rucker, Galinsky, & Dubois, 2012). Two experimental studies using a 2 (retailer response: warmth vs. competence) X 2 (audience power: low vs. high) between-subjects design were conducted. Study 1 (N = 240) revealed an interactive effect of power and retailer response on perceived diagnosticity and perceived fairness; and Study 2 (N = 233) showed that the significant moderated mediation for audiences’ perceptions on the relationship between retailer response X audience power and outcome variables. Theoretically, this study enriches the consumer complaint management literature from the perspective of consumer audience. It also sheds light on the power theory by validating its notion in the context of service failure and recovery. Practically, results demonstrate how retailers can effectively respond to negative consumer reviews to maintain customer relationship management with consumer audiences in digital age.

Properties on $q$-difference Riccati equation

Zhibo Huang,Ran-Ran Zhang 대한수학회 2018 대한수학회보 Vol.55 No.6

In this paper, we investigate a certain type of $q$-difference Riccati equation in the complex plane. We prove that $q$-difference Riccati equation possesses a one parameter family of meromorphic solutions if it has three distinct meromorphic solutions. Furthermore, we find that all meromorphic solutions of $q$-difference Riccati equation and corresponding second order linear $q$-difference equation can be expressed by $q$-gamma function if this $q$-difference Riccati equation admits two distinct rational solutions and $q\in\mathbb{C}$ such that $0<|q|<1$. The growth and value distribution of differences of meromorphic solutions of $q$-difference Riccati equation are also treated.

MEROMORPHIC SOLUTIONS OF A COMPLEX DIFFERENCE EQUATION OF MALMQUIST TYPE

Zhang, Ran-Ran,Huang, Zhi-Bo Korean Mathematical Society 2014 대한수학회보 Vol.51 No.6

In this paper, we investigate the finite order transcendental meromorphic solutions of complex difference equation of Malmquist type $$\prod_{i=1}^{n}f(z+c_i)=R(z,f)$$, where $c_1,{\ldots},c_n{\in}\mathbb{C}{\backslash}\{0\}$, and R(z, f) is an irreducible rational function in f(z) with meromorphic coefficients. We obtain some results on deficiencies of the solutions. Using these results, we prove that the growth order of the finite order solution f(z) is 1, if f(z) has Borel exceptional values $a({\in}\mathbb{C})$ and ${\infty}$. Moreover, we give the forms of f(z).

Mixtures of Tea and Citrus maxima (pomelo) Alleviate Lipid Deposition in HepG2 Cells Through the AMPK/ACC Signaling Pathway

Ran An,Shuai Wen,Dong-Li Li,Qiu-Hua Li,Xing-Fei Lai,Wen-Ji Zhang,Ruo-Hong Chen,Jun-Xi Cao,Zhi-Gang Li,Qiu-Sheng Huang,Ling-Li Sun,Shi-Li Sun 한국식품영양과학회 2020 Journal of medicinal food Vol.23 No.9

Tea and citrus maxima are natural, medicinal homologous plants, typically used for making beverages, which have anticancer, antiobesity, and antioxidation properties. Green tea, yellow tea, and black tea were combined with citrus maxima to obtain green tea and Citrus maxima (GTCM), yellow tea and Citrus maxima (YTCM), and black tea and Citrus maxima (BTCM). The biochemical components of these mixtures were analyzed, and their possible effects and mechanisms on relieving liver lipid deposition were explored. The tea polyphenols, free amino acids, phenolamine ratio, and caffeine were comparable in YTCM and GTCM, being significantly higher than those in BTCM. In addition, the content of esterified catechins, nonesterified catechins, and total catechins in YTCM was significantly higher than those in GTCM and BTCM. All three mixtures of Citrus maxima tea significantly reduced lipid deposition in HepG2 cells, with GTCM and YTCM being slightly more effective than BTCM. Regarding the possible mechanism, Western blot analysis revealed that the three Citrus maxima tea mixtures could activate the AMPK/ACC signaling pathway, upregulate the expression of p-AMPK, p-ACC, and CPT-1 proteins, and downregulate the expression of SREBP1c and fatty acid synthase proteins to inhibit fat synthesis, thereby relieving lipid deposition in liver cells. In conclusion, as a novel and healthy beverage, Citrus maxima tea has the potential to alleviate liver lipid deposition, and further could be responsible for obesity treatment.

Hole-filling Based on Disparity Map and Inpainting for Depth-Image-Based Rendering

Ran Liu,Zekun Deng,Lin Yi,Zhenwei Huang,Donghua Cao,Miao Xu,Ruishuang Jia 보안공학연구지원센터 2016 International Journal of Hybrid Information Techno Vol.9 No.5

Due to the changes in viewpoint, holes may appear in the novel view synthesized by depth-image-based rendering (DIBR). A hole-filling method combining disparity-map-based hole-filling and inpainting is proposed. The method first eliminates matching errors in destination image according to the disparity map. Then, holes are classified into different types according to their sizes. Finally, a disparity-map-based approach and an improved exemplar-based inpainting algorithm are used to fill different types of holes according to the type of hole. Experimental results show that the artifacts at the edge of foreground objects can be reduced in synthesized view since the matching errors are eliminated before hole-filling. In addition, the proposed method can achieve more natural and satisfactory results in filled areas in comparison with the disparity-map-based approach and Gautier’s inpainting algorithm, though it may result in higher time complexity.

Magnetostrictive and Magnetic Properties of Tb<SUB>0.29</SUB>Dy<SUB>0.48</SUB>Ho<SUB>0.23</SUB>Fe<SUB>1.9</SUB> Fiber/Epoxy Composites

Ran Zhao,Bowen Wang,Shuying Cao,Wenmei Huang,Quanguo Lu,Jianwu Yan 한국자기학회 2018 Journal of Magnetics Vol.23 No.2

In this paper, we fabricated novel magnetostrictive composites by embedding <110>-oriented Tb-Dy-Ho-Fe fibers in an epoxy matrix. The magnetostrictive and magnetic properties (magnetostriction, magnetization, piezomagnetic coefficient and relative permeability) of the proposed composites were measured, analyzed, and compared to those of Tb0.29Dy0.48Ho0.23Fe1.9 alloy and Tb0.3Dy0.7Fe₂ continuous-fiber/epoxy composites. Tb0.29Dy0.48Ho0.23Fe1.9 continuous-fiber/epoxy composites have a saturation magnetostriction (λs) of 840 ppm and saturation magnetization (Ms) of 0.75 T. Their piezomagnetic coefficient exhibits a maximum value (8.2 μm/kA) at 19 kA/m. These proposed composites exhibit a large magnetostriction in high magnetic fields (> 400 kA/m) and a large relative permeability in low magnetic fields (< 100 kA/m). This result indicates that the given composites perform better than the Tb0.29Dy0.48Ho0.23Fe1.9 alloy and Tb0.3Dy0.7Fe₂ fiber/epoxy composites. Thus, the composites with characteristics of high sensitivity and large magnetostriction can be used in the field of ultrasonic sensing.

Fertility and prognosis assessment between bleomycin/etoposide/cisplatin and paclitaxel/carboplatin chemotherapy regimens in the conservative treatment of malignant ovarian germ cell tumors: a multicenter and retrospective study

Ran Chu,Penglin Liu,Jingying Chen,Xiaodong Cheng,Kezhen Li,Yanci Che,Jianliu Wang,Li Li,Xi Zhang,Shu Yao,Li Song,Ying Zhao,Changzhen Huang,Ying Xue,Xiyu Pan,Junting Li,Zhongshao Chen,Jie Jiang,Beihua 대한부인종양학회 2023 Journal of Gynecologic Oncology Vol.34 No.2

Objective: To evaluate the impact of bleomycin/etoposide/cisplatin (BEP) and paclitaxel/carboplatin (PC) chemotherapy regimens on the fertility and prognostic outcomes in malignant ovarian germ cell tumor (MOGCT) patients who underwent fertility-sparing surgery (FSS). Methods: A propensity score matching algorithm was performed between the BEP and PC groups. The χ2 test and the Kaplan-Meier method were used to compare the fertility outcome, disease-free survival (DFS) and overall survival (OS). The Cox proportional hazards regression analysis was used to identify risk factor of DFS. Results: We included 213 patients, 185 (86.9%) underwent BEP chemotherapy, and 28 (13.1%) underwent PC chemotherapy. The median age was 22 years (range, 8–44 years), and the median follow-up period was 63 months (range, 2–191 months). Fifty-one (29.3%) patients had a pregnancy plan, and 35 (85.4%) delivered successfully. In the before and after propensity score matching cohorts, there were no significant differences in spontaneous abortion, selective termination of pregnancy, during-pregnancy status, and live birth between the BEP and PC groups (p>0.05). Fourteen (6.6%) patients experienced recurrence, including 11 (5.9%) in the BEP group and 3 (10.7%) in the PC group. Four (1.9%) patients in the BEP group died. Kaplan-Meier analysis revealed no significant differences in DFS (p=0.328) and OS (p=0.446) between the BEP and PC groups, and the same survival results were observed in the after matching cohort. Conclusion: The PC regimen is as safe as the BEP regimen for MOGCT patients with fertility preservation treatment, and no differences were observed in fertility and clinical prognosis.