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SOME NEW CLASSES OF ZERO-DIFFERENCE BALANCED FUNCTIONS AND RELATED CONSTANT COMPOSITION CODES

  • Sankhadip, Roy
    • 대한수학회보
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    • 제59권6호
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    • pp.1327-1337
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    • 2022
  • Zero-difference balanced (ZDB) functions can be applied to many areas like optimal constant composition codes, optimal frequency hopping sequences etc. Moreover, it has been shown that the image set of some ZDB functions is a regular partial difference set, and hence provides strongly regular graphs. Besides, perfect nonlinear functions are zero-difference balanced functions. However, the converse is not true in general. In this paper, we use the decomposition of cyclotomic polynomials into irreducible factors over 𝔽p, where p is an odd prime to generalize some recent results on ZDB functions. Also we extend a result introduced by Claude et al. [3] regarding zero-difference-p-balanced functions over 𝔽pn. Eventually, we use these results to construct some optimal constant composition codes.

Effects of Difference Age and Information Searching Level on Attitudes toward Innovative Product

  • Sinae Lee;Dongwon Min
    • Asia Marketing Journal
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    • 제25권1호
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    • pp.15-25
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    • 2023
  • Innovation is no longer the purview of high-tech industries; it is blossoming in the home appliances and cosmetics sectors. However, consumers' anxiety about the risk of new products prevents them from reaping the benefits of innovation. This anxiety is driven by customer's lack of prior information on new products. This study examines how difference age between the chronological age of consumers and their cognitive age affects consumers' willingness to search for information on innovative products, leading to reduced new-product anxiety. According to a survey of participants who actually bought an innovative product, we found that participants searched for more information when they perceived themselves to be younger than their chronological age (a high difference age). Where participants did not proactively search for information (due to a low difference age), they could be encouraged to do this through marketing campaigns. Together, these findings expand our understanding of how consumers' difference age can be leveraged in digital marketing to enable companies to more strategically reach consumers when planning or launching innovative products.

수정된 IPA를 활용한 호텔 키오스크 품질 속성에 관한 탐색적 연구 (An Exploratory Study on the Quality Attributes of Hotel Kiosks Using Revised IPA Analysis)

  • 이상재;서정운
    • 디지털산업정보학회논문지
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    • 제19권3호
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    • pp.77-88
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    • 2023
  • This study focuses on hotel kiosks that have begun to be introduced in earnest in mid-priced hotels, and the quality attributes of hotel kiosks, which are expected to be introduced throughout the hotel industry in the future, and validates them using a revised IPA(Importance-Performance Analysis). An online survey was conducted targeting hotel users who had used hotel kiosk devices, and difference analysis and IPA analysis were conducted on 239 people, excluding 61 who responded insincerely. As a result of the verification, there was no significant difference in hotel kiosk quality attributes by age, but there was no significant difference by age. It was found that there was a significant difference. As a result of analyzing the difference between importance and satisfaction, it was found that there was a partially significant difference. These results suggest standards for quality attributes in hotel kiosks and provide academic implications for future research and practical implications for hotel management practitioners.

UNIQUENESS OF A MEROMORPHIC FUNCTION WITH DIFFERENCE POLYNOMIAL OF DIFFERENCE OPERATOR SHARING TWO VALUES CM

  • H. R. Jayarama;H. Harish;S. H. Naveenkumar;C. N. Chaithra
    • 호남수학학술지
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    • 제46권2호
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    • pp.267-278
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    • 2024
  • In this paper, we investigate the uniqueness of a meromorphic function f(z) and its difference polynomial of difference operator with two sharing values counting multiplicities. Our two results improve and generalize the recent results of Barki Mahesh, Dyavanal Renukadevi S and Bhoosnurmath Subhas S [4] and for the case q ≥ 2, this allows for a highly unique generalization. To further demonstrate the validity of our main result, we provide an example.

장기근속 남성 택시기사와 일반인의 근골격계 균형에 관한 비교 연구 - 모아레 체형측정법을 통해 (A Comparative Study on the Balance of Musculoskelectal System between Long-Term Employed Male Taxi Drivers and General People - through Moire Topography)

  • 임상훈;박동수;이경무;정수현;김순중
    • 한방재활의학과학회지
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    • 제18권1호
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    • pp.141-151
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    • 2008
  • Objectives : The purpose of this study was to investigate effects of long-term taxi driving posture on the balance of musculoskelectal system. Methods : The author practiced Moire topography by using IBS-2000 for 30 male taxi drivers and general people. Then we measured difference of contour lines, difference of shoulder joint height, interval between vertical baseline of pelvis and vertical baseline of neck, ratio of thoracic curve and lumbar curve, difference of width between right and left through Moire topography. After we statistically analyzed difference of Moire topography's data between long-term employed male taxi drivers and general people. Results : 1. Taxi drivers, difference of contour lines in scapular, lumbar, gluteal region was bigger than general people and significant difference(p<0.05) was observed between subject group. 2. Taxi drivers, diference of shoulder joint height was more large than general people and significant difference(p<0.01) was observed between subject group. 3. Taxi drivers, diference of interval between vertical baseline of pelvis and vertical baseline of neck was more large than general people and significant difference((p<0.05) was observed between subject group. 4. Taxi drivers, ratio of thoracic curve was more large than general people and ratio of lumbar curve was more less than general people and significant difference(p<0.05) was observed between subject group. Conclusions : According to above results long-term taxi driving posture might cause musculoskelectal system unbalance.

배구경기 세터 토스 동작의 운동학적 비교분석 (Kinematic Variables Comparison of Setter Toss Motion on Volleyball According to Toss Types)

  • 정남주;김재필
    • 한국운동역학회지
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    • 제25권1호
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    • pp.57-64
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    • 2015
  • Purpose : The purpose of this study was to analyze setter toss motion kinematically according to toss types. Method : Dependent variables were elapsed time, vertical displacement of the body center, the projected speed of the ball, and differences of the joint angle to the target for four setters positioning. Result : There was no significant difference in the time but the ball contact time was shorter when the toss distance of P3 was longer. There was significant difference in the vertical displacement of COM (p<.05). The vertical displacement of COM showed that the vertical movement gradually decreased when the quick distance was longer. The vertical displacement of COM was difference (p<.05), also there was difference of the ball speed (p<.001) at the Release point(E4). There was significant difference in the knee joint angle at a certain moment among the Release(E4) and Landing point(E5)(p<.05). The hip joint was significant difference among the Apex(E2), Ball Touch(E3), Release(E4), and the Landing point(E5) on the surface(E2, E3, E4 p<.05; E5 p<.005). The shoulder angle was significant difference among the Ball Touch(E3), Release(E4) and the Landing point(E5) on the surface(E3, E4 p<.05; E5 p<.001). The elbow was significant difference in the Apex(E2) (p<.05). The wrist was significant difference in the Release(E4) (p<.05). Conclusion : If we find the clue to expect the direction of the setter's ball, we have to fine the clues in the Apex(E2) that hip join and elbow, Ball Touch(E3) that hip joint and shoulder joint, Release(E4) that wrist, elbow, hip joint, and knee joint.