유무선 통합 환경에서 효과적인 멀티캐스트 라우팅 알고리즘

원미란,김미혜 충북대학교 컴퓨터정보통신 연구소 2004 컴퓨터정보통신연구 Vol.12 No.1

본 논문은 유무선 통합 환경에서 효과적인 멀티캐스트 라우팅 알고리즘을 제안한다. 제안한 M_AQDMR 알고리즘은 Agent내에 내장된 두 가지 버퍼(Storage_Buffer 및 Provisional_Buffer)를 이용하여 모바일 노드가 이동할 때 패킷의 손실을 방지할 수 있으며, JoinRequest메시지와 JoinAccept메시지를 이용하여 동적으로 멀티캐스트 트리 구조를 조절할 수 있다. 시뮬레이션 결과, 새로운 M_AQDMR 알고리즘은 네트워크 비용, 패킷 손실률 등의 측면에서 기존의 QDMR 알고리즘에 비해 효율적임을 알 수 있었다. In this paper, we propose an efficient multicast routing algorithm on the wire/wireless integrated environment. This proposed M_AQDMR algorithm can prevent loss of packet when mobile node moves by using two internal buffers(storage_buffer and provisional_buffer), and dynamically control multicast tree by using JoinRequest message and JoinAccept message. The result of simulations showed that this new M_AQDMR algorithm is more efficient than the existing QDMR algorithms in the case of network cost and loss of packet

중국거주 조선족 여성의 영적 안녕정도가 정신건강에 미치는 영향

정성덕,이종범,김진성,서완석,배대석,박순재,주열,염형욱,김승원,김구묘,안영록,황대홍,표미자,조창열,정태길 영남대학교 의과대학 2004 Yeungnam University Journal of Medicine Vol.21 No.2

자아초월 정신의학이 체계화되면서 영성(spirituality)은 인성의 한 부분이라는 이론이 대두되었는데 이 영성은 정신건강에 큰 영향을 미친다고 했다. 인간의 성향 중 영적 안녕 정도를 파악하여 그 정도가 정신건강 중 허위성 경향, 정신병적 경향 및 불안과 우울 경향 등에 어떠한 영향을 미치는지를 조사하고저 본 연구를 실시하였다. 대상은 중국의 연변 조선족 자치구에 거주하는 여성 400명을 대상으로 하여 한국판 영적 안녕척도를 사용하여 영적 안녕정도를 파악하였다. 영적 안녕척도의 총점과 이 척도의 2개 하위 척도인 종교적 안녕과 실존적 안녕 척도 양자로 평가한 성적이 불안-우울통합척도와 정신분열증 척도 및 허위성 척도로 평가한 성적에 미치는 영향을 검증하기 위하여 상관관계분석 및 회기분석을 실시하였다. 그 결과는 다음과 같다. 1) 영적 안녕척도로 평가한 조선족 여성의 총점은 68.29로 한국의 기독교 여성이 평가한 100.65보다 훨씬 낮은 점수였다. 2) 불안·우울통합척도로 평가한 총점은 44.88로 연변노인이 평가한 점수와 일개지역의 한국농촌주민이 평가한 점수와 비슷한 결과였다. 3) 허위성 척도로 평가한 성적은 평균 74.57로 70점 이상이 86%(344명)이었으나 영적 안녕 성적과 허위성 성적 간에는 유의한 상관이 없었다. 4) 영적 안녕총점은 정신분열증 척도로 평가한 정신병적 경향에 유의한 영향을 미치지 않았으나 종교적 안녕하위척도의 성적은 정신병적 경향을 높여준데 비하여 실존적 안녕하위척도의 성적은 정신병적 경향을 낮게 해주었다. 5) 영적 안녕척도의 총점 및 두 하위척도인종교적 안녕과 실존적 안녕은 불안과 우울에유의한 상관을 보였는데 영적 안녕총점이 높을수록 불안·우울 총점이 다소 낮아지는 경향을 보였다. 6) 종교적 안녕 하위척도와 불안과 우울과의 관계는 종교적 안녕점수가 높을수록 불안과 우울을 각각 다소 유의하게 높여주었으며 이에 비하여 실존적 안녕하위척도와 불안과 우울과의 관계는 실존적 안녕정도가 높을수록 불안 및 우울점수는 유의하게 낮아졌다. 이와 같은 성적을 미루어볼 때 연변에 거주하는 조선족 여성이 평가한 영적 안녕정도는 정신병적 경향과 불안 및 우울에 유의한 상관을 보였으면 이 척도의 하위 척도인 종교적 안녕정도는 정신건강에 부정적인 영향을 미치는 반면 실존적 안녕정도는 정신건강에 긍정적 영향을 미친 결과로 평가되었다. 이러한 결과는 공산주의 사회에서 실존적 안녕은 긍정적인 가치관으로 평가되는 반면 종교적 안녕은 정신건강에 부정적으로 작용한 것을 입증해 주었다고 하겠다. Background: Spirituality has been an important part of Transpersonal Psychology and is believed to have a large effect on the mental health because it has been systematized. The aim of this study was to determine the level of spiritual disposition on human beings along with its effects on one's mental health. Materials and Methods: The study targeted 400 women residing in Youn-Gil city of JiLin Prov., which is a district of the Cho-Sun tribe in China. Their spiritual well-being was studied using the Spiritual Well-being Scale-Korean Version. The spiritual well-being scale consists of 2 sub-scales of religious well-being and existential well-being. The study was evaluated using a lie scale, psychotic trend, and a combined anxiety-depression scale. The results were considered to be factors of one's mental health. The correlation between the spiritual well-being and each tendency was analyzed by regression analysis. Results: The total score of the Cho-Sun tribal women according to the spiritual well-being scale was 68.29 which was much less than the 100.65 of Korean Christian women. There was no significant correlation between the spiritual well-being and the Lie trend. However, it was found that 86%(344) of Cho-Sun tribal women scored above 70 in the Lie trend with a mean score of 74.57 which is higher than normal populations. Regarding the correlation between the spiritual well-being and psychotic trend, the psychotic trend became significantly higher when the religious well-being was at a high level. On the other hand, the psychotic trend became significantly lower when the existential well-being was at a high level. Regarding the correlation between the spiritual well-being and anxiety, the anxiety was significantly higher when the religious well-being was at a high level. However, the anxiety level was significantly low when the existential well-being was at a high level. Regarding the correlation between the spiritual well-being and depression, the depression level was somewhat significantly high when the religious well-being was at a high level. However, the depression level was significantly low when the existential well-being was at a high level. Conclusion: This study evaluated the effects of spiritual well-being on a person's mental health among Cho-Sun tribal women in Youn-Gil city of JiLIn Prov., P.R. of China. The results found that the religious well-being, which is a sub-scale of spiritual well-being, had negative effects while the existential well-being had positive effects on the mental health. These results proved that a person's religious disposition had negative effects on their mental health in a communitarian society.

Experimental study on deformation and strength property of compacted loess

Mei, Yuan,Hu, Chang-Ming,Yuan, Yi-Li,Wang, Xue-Yan,Zhao, Nan Techno-Press 2016 Geomechanics & engineering Vol.11 No.1

A series of experimental studies are conducted on the deformation and shear strength property of compacted loess. The results reveal that the relationships of both the initial moisture content (w) and the initial degree of compaction (K) of compacted loess with cohesion (w) and the angle of internal friction (${\varphi}$) are linear. The relationship between the secant modulus ($E_{soi}$) and K is also linear. The relationship between $E_{soi}$ and w can be fitted well by a second-order polynomial. Further, when the influences of w and K are ignored, the relationship between the confined compression strain (${\varepsilon}$) and vertical pressure (p) can be expressed by a formula. A correction formula for the deformation of compacted loess caused by a change in w and K is derived on the basis of the study results.

Comparisons in phytochemical components and in vitro digestion properties of corresponding peels, flesh and seeds separated from two blueberry cultivars

Mei-Jia Li,Yuan-Yuan Deng,Li-Hua Pan,Shui-Zhong Luo,Zhizheng Jiang 한국식품과학회 2024 Food Science and Biotechnology Vol.33 No.1

Highbush blueberries (HB) and rabbiteye blueberries (RB) were separated into peels, flesh, and seeds to assess the compositions of nutriment, anthocyanins, soluble sugars and fatty acids, and the in vitro digesting abilities. Total phenolics contents (TPC) of 51–56 mg GAE/g DW were found in blueberry peels. Compared with HB peels, RB peels showed much higher TPC, but only contained 35 phenolics and lacked peonidin-3-O-rutinoside. Glucose, fructose, and sucrose were all present in HB and RB, but RB flesh had a higher acid-sugar ratio. Unsaturated fatty acid concentrations in HB and RB seeds were comparable (26.65 and 26.43 mg/g, respectively). However, HB seeds have 35 fatty acids, but RB seeds lacked cis-4,7,10,13,16,19-docosahexaenoic acid and cis-10-pentadecenoic acid. The in vitro digestion test showed that the whole fruit/peels/flesh of RB had a higher recovery and bioavailability index of phenolics and anthocyanins. Therefore, the reuse of blueberry pomace needs to be emphasized.

APPLIED SYMMETRICAL PRINCIPLE TO SOLVE SCHWARZ-CHRISTOFFEL PARAMETER PROBLEM

MEI YUAN,HUIQING PENG,AND YUN LEI 장전수학회 2018 Proceedings of the Jangjeon mathematical society Vol.21 No.4

This paper adopted symmetry theory to solve the Schwarz-Christoffel parameter problem for axisymmetric polygons. Numerical conformal mappings were performed to shift the upper half- plane onto polygonal domains. Once the constraint conditions of the problem were treated in a spe- cial way such as added or deleted a little area, it turns to be a solution of a singular integral.In this paper, an auxiliary point was suggested to attach to the polygon that obeyed the principle of symmetry, which can accelerate the solving process of the singular integral. After that, several numerical examples, along with an application related to electrostatics, are provided to verify its feasibility and simplication. When the distance from the auxiliary point to polygon is controlled under 1E-08, the accuracy can be controlled within 1E-09, accuracy and consequences of the calculation basically meet the ordinary requirement.

CONVERGENCE RATES FOR SEQUENCES OF CONDITIONALLY INDEPENDENT AND CONDITIONALLY IDENTICALLY DISTRIBUTED RANDOM VARIABLES

Yuan, De-Mei Korean Mathematical Society 2016 대한수학회지 Vol.53 No.6

The Marcinkiewicz-Zygmund strong law of large numbers for conditionally independent and conditionally identically distributed random variables is an existing, but merely qualitative result. In this paper, for the more general cases where the conditional order of moment belongs to (0, ${\infty}$) instead of (0, 2), we derive results on convergence rates which are quantitative ones in the sense that they tell us how fast convergence is obtained. Furthermore, some conditional probability inequalities are of independent interest.

A Chinese Character Segmentation Algorithm for Complicated Printed Documents

Yuan Mei,Xinhui Wang,Jin Wang 보안공학연구지원센터(IJSIP) 2013 International Journal of Signal Processing, Image Vol.6 No.3

SOME RESULTS ON CONDITIONALLY UNIFORMLY STRONG MIXING SEQUENCES OF RANDOM VARIABLES

Yuan, De-Mei,Hu, Xue-Mei,Tao, Bao Korean Mathematical Society 2014 대한수학회지 Vol.51 No.3

From the ordinary notion of uniformly strong mixing for a sequence of random variables, a new concept called conditionally uniformly strong mixing is proposed and the relation between uniformly strong mixing and conditionally uniformly strong mixing is answered by examples, that is, uniformly strong mixing neither implies nor is implied by conditionally uniformly strong mixing. A couple of equivalent definitions and some of basic properties of conditionally uniformly strong mixing random variables are derived, and several conditional covariance inequalities are obtained. By means of these properties and conditional covariance inequalities, a conditional central limit theorem stated in terms of conditional characteristic functions is established, which is a conditional version of the earlier result under the non-conditional case.

Clinical Research on Albumin-Bound Paclitaxel-Based Chemotherapy for Advanced Esophageal Cancer

Yuan, Yuan,Zhang, Yan,Shi, Lin,Mei, Jing-Feng,Feng, Jif-Eng,Shen, Bo Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.12

Background: To evaluate the efficacy and safety of albumin-bound paclitaxel-based chemotherapy in treatment for patients with advanced esophageal cancer who failed in first-line chemotherapy. Materials and Methods: We collected29 advanced esophageal cancer patients who received albumin-bound paclitaxel-based chemotherapy fromJune 2009 to September 2013, and the efficacy and safety of the compound were evaluated. These patients were treated with $100-150mg/m^2$ nab-paclitaxel on days 1,8. The cycle was repeated every 3 weeks. Clinical efficacy was evaluated every two cycles. Results: Of the 29 patients, two persons interrupted treatment because of adverse reactions, failed to evaluate efficacy effect. The rest of 27 patients who could be evaluated for short-term response, 10 patients (37%) achieved partial response, 2 (7.4%) remained stable disease, and 15 (55.6%) had progressivedisease. The objective response rate was 37%, and the disease control rate was 44.4%.The median time to progression was 6.6 months.The major adverse reactions includedalopecia (62.07%), neutropenia (65.5%), gastrointestinalreaction (10.3%) andsensory neuropathy(6.8%). Conclusions: The albumin-bound paclitaxel-based chemotherapy is efficacy and safety in treatment for patients with advanced esophageal cancer who failed in first-line chemotherapy.

Identification and characterization of CONSTANS-like genes from Curcuma alismatifolia

Yuan-Yuan Li,Xiao-Huang Chen,Hui-Wen Yu,Qi-Lin Tian,Luan-Mei Lu 한국원예학회 2021 Horticulture, Environment, and Biotechnology Vol.62 No.2

The CONSTANS ( CO ) and CONSTANS - like ( COL ) genes have an important role in the regulation of fl owering in photoperiod-sensitive plants. However, information on the molecular characterization of COL genes in Curcuma alismatifoliais very limited. The objective of this study was to identify and evaluate 8 COL homologs ( CaCOLs ) in the C. alismatifoliatranscriptome. Their structures, phylogenetic relationships and expressing patterns under short-day (SD) and long-day (LD)contexts were investigated. Our results showed that CaCOLs were classifi ed into three groups: CaCOL3 and CaCOL6 in groupI were the most CO - like genes; CaCOL7 and CaCOL8 in group II contains only one B-box; CaCOL1 to 2 and CaCOL4 to 5formed the group III. Phylogenetic analysis of the CaCOLs in Arabidopsis, Rice, Barley, Malaccensis and C. alismatifoliademonstrated that both the B-box and CCT domains were conserved in dicot and monocot plants, but diff erent groups ofCOL genes evolved independently. Diff erent patterns of mRNA accumulation in C. alismatifolia leaves in response to SDand LD treatments were observed. CaCOL1 , CaCOL2 , CaCOL4 and CaCOL7 showed signifi cantly higher expressions inLD treatment than that of SD, indicating that they were potential fl owering inducers, and are candidate genes for research infl owering regulation and circadian controlling in C. alismatifolia plants. Altogether, our study facilitates successful regulationof fl owering in Curcuma species and provides insights for future molecular breeding programs.