• Title/Summary/Keyword: branch point

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The Radial Artery Superficial Palmar (RASP) Branch Free Flap for Finger Soft Tissue Reconstruction (요골 동맥 표재 수장 분지 유리 피판술을 이용한 수지 연부 조직의 재건)

  • Kim, Yong-Jin;Suh, Young-Suk;Lee, Sang-Hyun;Hahm, Dong-Gil
    • Archives of Reconstructive Microsurgery
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    • v.21 no.1
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    • pp.21-26
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    • 2012
  • The radial artery superficial palmar branch free flap is based on the perforators of the superficial palmar branch of the radial artery and its venae comitantes. This flap can be used as a sensible flap including palmar cutaneous branch of the median nerve. Forty radial artery superficial palmar branch free flaps were performed at Centum Institute during October 2010 to December 2011. There were 32 males and 8 females and their mean age were 48 years (range 30 to 66 years). The thumb injured in 13 patients, the index finger in 16 patients, the middle finger in 4 patients, the ring finger in 2 patients, and the little finger in 5 patients. The mean size of the flap was $2.5{\times}3.5$ cm(range $2{\times}2.5$ to $3{\times}7$ cm). The donor site was always closed primarily. The overall survival rate was 90.2 percent. The flaps showed well-padded tissue with glabrous skin. All patients have touch sensation and showed 12 mm two point discrimination in an average(range 8 to 15 mm). Donor site morbidity was conspicuous. One patient showed unsightly scar. Early postoperative range of motion of the affected thumb showed slightly limited radial and palmar abduction. But it improved after postoperative 2 months, and patients did not complaint limitation of motion. In conclusion, the radial artery superficial palmar branch free flap can be used as an option for soft tissue reconstruction of finger defects where local or island flaps are unsuitable.

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Effect of N-Methylmesoporphyrin IX on the Branch Point of the Tetrapyrrole Pathway in Pea (Pisum sativum L.) Chloroplasts

  • Yu, Gyung-Hee
    • BMB Reports
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    • v.28 no.6
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    • pp.523-526
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    • 1995
  • Administering ${\delta}-aminolevulinic$ acid (ALA) to isolated pea (Pisum sativum L.) chloroplasts resulted in an increase of heme synthesis in the heme branch of the tetrapyrrole pathway. At 0.1 mM ALA, in the presence of 1 mM $FeSO_4$ heme synthesis was stimulated up to 7 fold of that in the absence of $FeSO_4$. N-Methylmesoporphyrin IX (NMMP), a powerful inhibitor of ferrochelatase, inhibited heme synthesis by 95% at one micromolar concentration. The addition of A TP to the chloroplasts caused not only heme synthesis, but Mg-protoporphyrin IX synthesis in the chlorophyll branch of the tetrapyrrole pathway. In the presence of NMMP, however, inhibition of Mg-protoporphyrin IX synthesis was not observed whereas heme synthesis was inhibited completely.

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Synthesis, Characterization, and the Influence of Functionalized Multi-Walled Carbon Nanotubes with Creatinine and 2-Aminobenzophenone on the Gastric Cancer Cells

  • Tahermansouri, Hasan;Aryanfar, Yaser;Biazar, Esmaeil
    • Bulletin of the Korean Chemical Society
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    • v.34 no.1
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    • pp.149-153
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    • 2013
  • The chemical functionalization of carboxylated multi-walled carbon nanotubes (MWCNT-COOH) by creatinine (MWCNT-Amide) and latter modification with 2-aminobenzophenone for producing 1-methyl-9-phenyl-1H-imidazo[4,5-b]quinolin-2-amine (MWCNT-quino) have been investigated. All products were characterized by Fourier transform infrared spectroscopy, Raman spectroscopy, scanning electron microscope, elemental analysis, thermogravimetric analysis, derivative thermogravimetric and cellular investigations. The interesting point is that MWCNT-quino can be homogeneously dispersed in dimethylformamide and to some extent in ethyl alcohol without sonication. Also, MTT assay was used to examine the behavior of cell proliferation after 48 h of cell culture experiments. Cellular results showed high toxicity of MWCNT-quino on the cancer cells. These functionalizations have been chosen due to active sites of carbonyl and methylene groups in MWCNT-Amide and the creating quinoline derivative on the MWCNTs for future application.

An ATM Network Management System for Point-to-Multipoint Reservation Service

  • Hong, Daniel Won-Kyu;Hong, Choong-Seon;Yun, Dong-Sik;Yoo, Jae-Hyoung;Kim, Woo-Sung
    • ETRI Journal
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    • v.24 no.4
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    • pp.299-310
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    • 2002
  • This paper describes an integrated network management framework for providing point-to-multipoint reservation service (PMRS) in an ATM network. There are two major issues confronting the network service provider in relation to this service: one is to rapidly confirm the acceptability of the subscriber's reservation at subscription time, and the other is to punctually activate the reserved point-to-multipoint service. To meet these requirements, we developed a service provision model (SPM) and a network resource model of a bandwidth allocation timetable (BATT). We propose a point-to-multipoint routing algorithm composed of ordering and backtracking procedures, which can find the best branch point under the complex network topology and can add more destinations to the existing point-to-multipoint route. We demonstrate the feasibility of the SPM, the BATT, and the point-to-multipoint routing algorithm by implementing our schemes and analyzing their performance under the operational ATM network of KT(Korea Telecom).

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A Study on the Branch Establishment Planning of National Library (국가도서관 지역분관 건립계획에 관한 연구)

  • Yoon Hee-Yoon
    • Journal of the Korean Society for Library and Information Science
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    • v.40 no.3
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    • pp.11-34
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    • 2006
  • A national library is a library specifically established and administrated by the government of a nation to serve as the repository of knowledge and information for that country. National libraries are generally a county's designated national repository, collecting literature Published in the country, in the language of the country, or about the country they represent. In case of advanced countries, national libraries have more than one branches at many different locations. Its system is called the distributed national library system. But the National Library of Korea maintains a centralized library system located in Seoul. This research which it tries to pay attention in this problem Point extracted a logical ground and suggested the mid-long term basic plan(S-shaved Branch Library Project) for a National Library of Korea to convert and reconstruct from centralized system to centralized-distributed system.

Experimental and numerical study of the behavior of fiber reinforced concrete beams with nano-graphene oxide and strengthening CFRP sheets

  • Mohammad Reza Halvaeyfar;Ehsanollah Zeighami;S. Mohammad Mirhosseini;Ali Hassani Joshaghani
    • Structural Engineering and Mechanics
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    • v.87 no.4
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    • pp.375-389
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    • 2023
  • In many fiber concrete beams with Carbon Fiber Reinforced Polymer (CFRP), debonding occurs between the carbon sheets and the concrete due to the low strength of the bonding resin. A total of 42 fiber concrete beams with a cross-section of 10×10 cm with a span length of 50 cm are fabricated and retrofitted with CFRP and subjected to a 4-point bending test. Graphene Oxide (GO) at 1, 2, and 3 wt% of the resin is used to improve the mechanical properties of the bonding resins, and the effect of length, width, and the number of layers of CFRP and resin material are investigated. The crack pattern, failure mode, and stress-strain curve are analyzed and compared in each case. The results showed that adding GO to polyamine resin could improve the bonding between the resin and the fiber concrete beam. Furthermore, the optimum amount of nanomaterials is equal to 2% by the weight of the resin. Using 2% nanomaterials showed that by increasing the length, width, and number of layers, the bearing and stiffness of fiber concrete beams increased significantly.

A Survey on the Medical Conditions of Public Health Oriental Medical Doctors (공중보건한의사의 진료여건에 관한 조사연구)

  • Chong, Myong-Soo;Oh, Chung-Sun;Lee, Ki-Nam
    • Journal of Society of Preventive Korean Medicine
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    • v.10 no.2
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    • pp.63-80
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    • 2006
  • Public health oriental medical doctor has played a great role in providing oriental medical treatment and oriental medical health program with public health medical services, the basic infrastructure, however, is not sufficient. In this study, the researcher surveyed the treatment working or service condition of public health oriental medical doctor. 1. The payment, allowance of doctors are fixed upon the law and guideline according to the financial status of local government. The branch of public health center has more support like an official residence with expenses. 2. The public health center mainly has assitants and ratio of full-timer is more than the branch public health center without any assistants if any, they are temporary employee 3. The public health center has 5.22 beds while the branch has 3.14 beds. The daily average number of patient for public health center is 15.01 while the branch has 8.7 More than half of outpatients are over sixties with musculoskeletal disease. 4. Regarding the traveling clinic, the public health center put into more operation than the branch. The 3rd year serving public doctor gives negative about the traveling clinic much more than 1st and 2nd year serving public doctor. The treatment service condition of public doctor of the public health center is better than the branch doctor, but we are on the point of role-changing as health promotion and preventive treatment to bring up motivation, education and competence strengthening for execution the local-bound health program.

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Calculation of Magnetic Fields under 3 Phase Power Lines with Branch Lines (분기선로가 있는 3상 전력선로하의 전자파 자계 계산)

  • Kang, Dae-Ho;Lee, Yong-Sik;Kim, Bu-Gyu
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.23 no.5
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    • pp.110-119
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    • 2009
  • In this study magnetic fields near electric power lines with branch lines which have a arbitrary angle were derived and formulated by dipole antenna theory and could be calculated easily using the formula. It seems that those formula could be applicable to the consideration of magnetic fields during the design of distribution lines with branch lines. As an example those formulated equations on elements of magnetic fields were applied to a model of 3 phase distribution lines with branch lines and calculated by Matlab programs and the results were presented The analyzed results are follows. The resultant magnetic field is dominated by the componant By all over y-axis in the case of the smaller branched angle $\alpha$ and the lower observed point z. In case of ${\alpha}=\frac{\pi}{2}$[rad], the resultant field is affected by the componant Bx. The resultant field is dominated by the componant Bz at the vicinity of the power lines and it shows very large value at the branch line position of y-axis in case of ${\alpha}>\frac{\pi}{2}$.

The Tracing Algorithm for Center Pixel of Character Image and the Design of Neural Chip (문자영상의 중심화소 추적 알고리즘 및 신경칩 설계)

  • 고휘진;여진경;정호선
    • Journal of the Korean Institute of Telematics and Electronics B
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    • v.29B no.8
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    • pp.35-43
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    • 1992
  • We have presented the tracing algorithm for center pixel of character image. Character image was read by scanner device. Performing the tracing process, it can be possible to detect feature points, such as branch point, stroke of 4 directions. So, the tracing process covers the thinning and feature point detection process for improving the processing time. Usage of suggested tracing algorithm instead of thinning that is the preprocessing of character recognition increases speed up to 5 times. The preprocessing chip has been designed by using single layer perceptron algorithm.

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