Packing trees into complete k-partite graph

Yanling Peng,Hong Wang 대한수학회 2022 대한수학회보 Vol.59 No.2

In this work, we confirm a weak version of a conjecture proposed by Hong Wang. The ideal of the work comes from the tree packing conjecture made by Gy\'arf\'as and Lehel. Bollob\'as confirms the tree packing conjecture for many small tree, who showed that one can pack $T_1,T_2,\ldots,T_{n/\sqrt{2}}$ into $K_n$ and that a better bound would follow from a famous conjecture of Erd\H{o}s. In a similar direction, Hobbs, Bourgeois and Kasiraj made the following conjecture: Any sequence of trees $T_1,T_2,\ldots,T_n$, with $T_i$ having order $i$, can be packed into $K_{n-1,\lceil n/2\rceil}$. Further Hobbs, Bourgeois and Kasiraj \cite{3} proved that any two trees can be packed into a complete bipartite graph $K_{n-1,\lceil n/2\rceil}$. Motivated by the result, Hong Wang propose the conjecture: For each $k$-partite tree $T(\mathbb{X})$ of order $n$, there is a restrained packing of two copies of $T(\mathbb{X})$ into a complete $k$-partite graph $B_{n+m}(\mathbb{Y})$, where $m=\lfloor\frac{k}{2}\rfloor$. Hong Wong \cite{4} confirmed this conjecture for $k=2$. In this paper, we prove a weak version of this conjecture.

암센서용 TiO2/Au/CNT 나노복합물의 전기화학적 검출

홍성미, 김홍일, 김한주, Wang, Xuemei, 박수길 충북대학교 건설기술연구소 2008 충북대학교 건설기술연구소 논문집 Vol.27 No.1

Demand of rapid detection for cancer, it is necessary that high sensitivity, specificity, low cost, and simple method. CNT and metal nano materials are widely used to elecate efficient. CNT have various advantage, and can be composed with metal nano materials. Especially, Titanium oxide and gold nano particles are focused on sensor for detection of cancer, it can elecate electron transition feeiciency between electrode surface and target materials, and biological functionalization of CNT. It means that nano material is composed each other. In this study, electrodes are considered materialsd and their chracteristic for cancer sensor.

Comparison of methods for library construction and short read annotation of shellfish viral metagenomes

Hong‑Ying Wei,Sheng Huang,Jiang‑Yong Wang,Fang Gao,Jing‑Zhe Jiang 한국유전학회 2018 Genes & Genomics Vol.40 No.3

The emergence and widespread use of high-throughput sequencing technologies have promoted metagenomic studies on environmental or animal samples. Library construction for metagenome sequencing and annotation of the produced sequence reads are important steps in such studies and influence the quality of metagenomic data. In this study, we collected some marine mollusk samples, such as Crassostrea hongkongensis, Chlamys farreri, and Ruditapes philippinarum, from coastal areas in South China. These samples were divided into two batches to compare two library construction methods for shellfish viral metagenome. Our analysis showed that reverse-transcribing RNA into cDNA and then amplifying it simultaneously with DNA by whole genome amplification (WGA) yielded a larger amount of DNA compared to using only WGA or WTA (whole transcriptome amplification). Moreover, higher quality libraries were obtained by agarose gel extraction rather than with AMPure bead size selection. However, the latter can also provide good results if combined with the adjustment of the filter parameters. This, together with its simplicity, makes it a viable alternative. Finally, we compared three annotation tools (BLAST, DIAMOND, and Taxonomer) and two reference databases (NCBI’s NR and Uniprot’s Uniref). Considering the limitations of computing resources and data transfer speed, we propose the use of DIAMOND with Uniref for annotating metagenomic short reads as its running speed can guarantee a good annotation rate. This study may serve as a useful reference for selecting methods for Shellfish viral metagenome library construction and read annotation.

论宋诗话中的司马相如

王红霞 대구대학교 인문과학연구소 2009 人文科學硏究 Vol.33 No.-

There are more than forty pieces of materials related to Sima Xiangru and Zhuo Wen-jun. These materials roughly draw the the character of Sima Xiangru in the Song people's eyes by expatiating on the following aspects the mind of him, the style of his literature. the relationship of his literature and the literature of other dynasties. In Song Dynasty, the comments on Sima Xiangru not only inherited the early views, but also have something new which shows the unique digestion when the Song people studied Sima Xiangru From this we can also see that the different aesthetic preferance and literatural values among the Song scholars. So, an anaylsis on these materials about Sima Xiangru in Song ShiHua can help us to better understand and accept him.Song ShiHua, Sima Xiangru, BaiTouyin, mind and action, Song of Chu, shi, satirize 宋诗话中涉及司马相如和卓文君的材料多达四十则左右,这些材料分别对司马相如的思想行为,司马相如作品的风格,司马相如作品与历代文学的关系等几个方面作了较为详尽地阐述,粗略勾勒了宋人眼中的司马相如。在宋代,对司马相如的评价不但对前代的观点有所继承,发挥或补充修正,更有一些新的见解,表现出宋代文人研习司马相如的独特体会和心得,亦可见出宋代文人不同于前代的审美取向和文学价值观,因此,对宋诗话中与司马相如有关的材料作疏理,可以帮助我们了解宋人对司马相如的认识和接受。

滿族薩滿敎的內容與特色

王宏剛 漢陽大學校 民族學硏究所 1999 民族과文化 Vol.8 No.-

고 아밀라아제 혈증을 보인 급성 Lithium Carbonate 중독증 1례

홍현상,박흥수,정염성,노왕구 大韓神經精神醫學會 1991 신경정신의학 Vol.30 No.2

Lithium carbonate is a widely used and invaluable drug in the treatment and prevention of manic-depressive illness. However, lithium cardonate may induce multisystemic adverse effects and toxic effects that, when not recognized, may lead to severe, life-threatening complications. The authors experienced a manic patient who showed severe lithium toxic reactions with hyperamylasemia. The patient was 41-year-old woman who had received lithium carbonate treatment for 3 months. The patient's symptoms and signs of toxic reaction had disappeared after hydration, insulin therapy, and hemodialysis.

전치 태반의 임상적 고찰

홍관표,이성동,김왕수,정종일,장하종,정혁,한세준 朝鮮大學校 附設 醫學硏究所 1991 The Medical Journal of Chosun University Vol.16 No.1

This study was undertaken for the clinical evaluation and statistical analysis on the 38 cases of placenta previa who were admitted and treated from March 1, 1988 to Feb. 28, 1991. The results were as follows : 1. The incidence of placenta previa was one per 53 deliveries or 1.90% 2. There were 57.9 % total placenta previa, 21.1 % partial placenta previa, 13.1 % low-lying placenta previa and 7.9% marginal placenta previa. 3. Placenta previa has occured more often in multipara (63.2%) than primigravida 4. More than one-third (38.8%) cases of placenta previa had delayed admission until labor occured for some time following vaginal spotting has first time been noticed. More instructive prenatal education should be emphasized 5. Lower segment transverse section rate was 63.2%, classical cesarean section rate was 15.8% and cesarean hysterectomy was 9.8%. The rest of them were treated by vaginal deliveries of 5 cases(13.2%) 6. The perinatal loss associated with placenta previa was considered still higher : the premature death was 15.8% and term death was 2.6%. The problem of prevention of prematurity still remains to be studied. 7. There was no maternal mortality in our study

论宋诗话中的司马相如

王红霞 대구대학교 인문과학연구소(인문과학 예술문화연구소) 2009 人文科學硏究 Vol.33 No.-

There are more than forty pieces of materials related to Sima Xiangru and Zhuo Wen-jun. These materials roughly draw the the character of Sima Xiangru in the Song people's eyes by expatiating on the following aspects the mind of him, the style of his literature. the relationship of his literature and the literature of other dynasties. In Song Dynasty, the comments on Sima Xiangru not only inherited the early views, but also have something new which shows the unique digestion when the Song people studied Sima Xiangru From this we can also see that the different aesthetic preferance and literatural values among the Song scholars. So, an anaylsis on these materials about Sima Xiangru in Song ShiHua can help us to better understand and accept him.Song ShiHua, Sima Xiangru, BaiTouyin, mind and action, Song of Chu, shi, satirize 宋诗话中涉及司马相如和卓文君的材料多达四十则左右,这些材料分别对司马相如的思想行为,司马相如作品的风格,司马相如作品与历代文学的关系等几个方面作了较为详尽地阐述,粗略勾勒了宋人眼中的司马相如。在宋代,对司马相如的评价不但对前代的观点有所继承,发挥或补充修正,更有一些新的见解,表现出宋代文人研习司马相如的独特体会和心得,亦可见出宋代文人不同于前代的审美取向和文学价值观,因此,对宋诗话中与司马相如有关的材料作疏理,可以帮助我们了解宋人对司马相如的认识和接受。

슬관절 내측부 인대 손상의 보존적 치료

임홍철,심재학,남혁우,왕준호,노영진 대한스포츠의학회 2000 대한스포츠의학회지 Vol.18 No.2

Purpose : The medial collateral ligament injury is the most common injury of the knee. Recently Non-operative treatment has been preferred than operative treatment and most of patients have satisfactory clinical results after non-operative treatment. But a few patients have continuous instability after non-operative treatment, so the purpose of this study is to fine out the cause of persistent symptom. Methods and Materlals : We performed a retrospective study of one hundred thirty seven patients with medial collateral ligament injury treated non-operative from January 1990 to December 1997. W divided patients into two groups: isolated medial collateral ligament injury (groupⅠ): medial collateral ligament injury with concomitant anterior cruciate ligament injury (groupⅡ) and we analysed MRI finding, valgus instability, and Lysholm knee score. Result : At the follow up, three of group Ⅰ, five of group Ⅱ had persistent grade Ⅲ valgus instability. In group Ⅰ, we could find two case of rupture of the proper of medial collateral ligament with inward inversion and one case of concomitant posteromedial compartment injury. We could find the proper rupture of medial collateral ligament with inversion inward in two patients, the injury of posteromedial compartment in one patient. Two patients of group Ⅱ with grade Ⅲ valgus instability had anterior instability with laxity of grafted tendon after anterior cruciate ligament reconstruction. Conclusion : Most of isolated injury of the medial collateral ligament heals wthout operative intervention. But in case of rupture of the proper portion of medial collateral ligament with inversion inward or concomitant injury of posteromedial compartment, we should consider the operative treatment of medial collateral ligament. In case of medial collateral ligament injury with anterior cruciate ligament, it would better to consider the delicate reconstruction of anterior cruciate ligament.

乳齒列期 齒列穹 形態에 關한 硏究

金旺根,金南洪 大韓小兒齒科學會 1985 大韓小兒齒科學會誌 Vol.12 No.1

This study was to investigate the fitness of the primary dental arch to the parabola. The samples of 91 plaster casts were obtained which were taken from children with normal occlusion, aging from 3 to 5 years. Landmarks on the stone casts were marked on measuring glass which was superimposed on the stone casts, and transfered and measured to the tracing paper. The points on the tracing papers were digitized, and scattergrams and statistics were performed by the computer; PRIME 750, IBM Co., U.S.A.. The results were as follows: 1. The fitness of the primary ental arch to the parabola was above 92% in the upper dental arch, and was above 91% in the lower dental arch. 2. Constant value A of upper dental arch line passing the midpoints of primary dentition was -0.54 and that of lower ental arch was -0.59, and the upper dental arch showed more expended parabola than the lower dental arch. 3. The dental arch line passing the buccal cusp tips of the primary posteriors and the midpoints of he primary incisors were more fit to the parabola than the dental arch line passing the midpoints of the primary teeth. 4. The ratio of oblique arch length to intermilar width was divided into 4 groups by the quaters, and the mean parabolic equations and curves were calculated and drawn.