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A Case of Paracentric Inversion of Chromosome 18 (q21.1q22.1)
( Gh An ),( Kh Choi ),( My Kim ),( Jy Han ),( Hk Ahn ),( Jh Chung ),( Mh Kim ),( Sw Lee ),( Yj Han ),( Dw Kwak ),( Yh Chae ),( Sy Park ),( Hm Ryu ) 대한산부인과학회 2012 대한산부인과학회 학술대회 Vol.98 No.-
We report on a case with a paracentric inversion of the long arm of chromosome 18: 46,XX,inv(18)(q21.1q22.1). A karyotype 46.XX.add(18) was found during antenatal diagnosis (amniocentesis) performed at local clinic because of advanced maternal age (38 years). And the pregnant woman visited our hospital at 18.4 weeks to confirm the result. We performed the amniocentesis and found the karyotype 46,XX,inv(18)(q21.1q22.1). The inversion was also found in the mother and the maternal grandmother of the fetus by chromosome studies from peripheral blood . The high resolution ultrasonography performed at 20.5 weeks showed normal findings. The diagnosis of paracentric inversion can be difficult and might be incorrect because of the variety of unpredictable unbalanced chromosome products that can result from a paracentric inversion. The vast majority of paracentric inversions are likely to be harmless. The risk of having an abnormal child for carriers of paracentric inversions is expected to be low. but sometimes by the variation of breakpoint or recombination process, various clinical phenotype can be seen : 18q- syndrome including: microcephaly, epicanthal folds, midface hypoplasia, and abnormally modeled ears, dermatoglyphic whorls on fingertips, clubfeet, hearing loss, and developmental delay. The mother is now ongoing pregnant state and the baby needs long term follow up after birth. This report underlines the importance of careful antenatal diagnosis and genetic counseling for parental and fetal paracentric inversion.
Out of plane behavior of walls, using rigid block concepts
Gh.M, Mohammadi,F, Yasrebi Techno-Press 2010 Structural Engineering and Mechanics, An Int'l Jou Vol.34 No.3
Out of plane behaviors of walls and infills are investigated in this paper, using rigid block concepts. Walls and infills are sometimes separated from top beams because of in plane movement of the walls and crumbling mortar layers under the top beams. Therefore, sufficient strength should be supplied to hold them against out of plane forces. Such walls are studied here under some real and scaled earthquakes, regarding their out of plane behavior. Influences of some reinforcements, connecting the walls to frames or perpendicular walls, are also studied. It is shown that unreinforced walls of regular sizes (3 m high and 4.5 m long) are normally unstable in the earthquakes. However, performing some reinforced bars that connect them to adjacent elements- frames or perpendicular walls - stabilizes them. Eventually, it is concluded that supplying 3 reinforced bars at 1/4, 2/4 and 3/4 of the panel's height stabilizes the walls in the assumed earthquakes. In this regard, for 20 cm and 35 cm thick walls ${\Phi}$18mm and ${\Phi}$20mm bars are to be used, respectively. For walls with other configurations, the forces and required areas of the reinforcements can be determined by the developed method of this paper.
Gh. E. Mostafa 경남대학교 수학교육과 2020 Nonlinear Functional Analysis and Applications Vol.25 No.4
In this paper, we introduce the finite element method and solve the boundary control problem governed by parabolic variational inequalities with an infinite number ofvariables by using this method.
Gh.R. Atefatdoost,H. Shakib,B. JavidSharifi 국제구조공학회 2017 Structural Engineering and Mechanics, An Int'l Jou Vol.63 No.3
Architecture constraints in buildings may typically cause irregularities in the distribution of stiffness and mass and consequently causes non-compliance of centers of mass, stiffness and strength. Such buildings are known as asymmetric buildings the distribution of strength and stiffness is one of whose main challenges. This distribution is more complicated for concrete buildings with RC shear walls in which stiffness and strength are interdependent parameters. The flexibility under the foundation is another subject that can affect this distribution due to the variation of dynamic properties of the structure and its constituting elements. In this paper, it is attempted to achieve an appropriate distribution pattern by expressing the effects of foundation flexibility on the seismic demand of concrete shear walls and also evaluate the effects of this issue on strength and stiffness distribution among lateral force resistant elements. In order to understand the importance of flexibility in strength and stiffness distribution for an asymmetric building in different conditions of under-foundation flexibility, the assigned value to each of the walls is numerically calculated and eventually a procedure for strength and stiffness distribution dependencies on flexibility is provided.
Gh. Dehghan Khalili,S. Alipour,M. R. Akbarpour,S. Moniri Javadhesari 대한금속·재료학회 2023 METALS AND MATERIALS International Vol.29 No.8
In this study, copper oxide (CuO) nanoparticles were incorporate within polyvinyl alcohol (PVA) matrix and CuO–PVAnanocomposite film was fabricated by solution casting technique. In order to synthesize nanoparticles, a cost-competitive andfacile approach namely mechanochemical method was implemented. As nanoparticles precursors, pre-determined amountof CuSO4,NaCl, and NaOH were mixed. The mixture was ball-milled in zirconia medium for 10 h at ambient temperatureand rotational speed of 300 rpm. The XRD characterization analysis indicated CuO nanoparticles formation by ball milling. The CuO size was estimated to be in the ≈ 37 nm range. SEM images demonstrated the spherical morphology andlittle agglomeration for the nanoparticles. Furthermore, the bandgap energy of CuO was determined to be 1.84 eV. TheCuO content in the nanocomposite was set to be 2, 4, 8, and 10 wt%. Strong interaction between the PVA matrix and CuOnanofiller was confirmed by XRD and FT-IR investigations. Moreover, integration of CuO to the polymer matrix resultedin a decreased PVA crystallinity. The antibacterial behavior of PVA was increased by the addition of nanoparticles, and theCuO–PVA nanocomposite containing up to 4 wt% CuO had desirable antibacterial properties demonstrated against Escherichiacoli activity. CuO nanoparticles incorporating to PVA network led to reinforced mechanical and dielectric propertiesfor the nanocomposites. Besides, nanoparticles loading had direct impact on the intensified properties. Tensile strength wasenhanced from 85.8 (pure PVA) to 154.9 MPa (PVA-10 wt% CuO). The tensile modulus for neat PVA was 0.9 GPa andraised dramatically to 4.5 GPa for PVA-10 wt% CuO. Dielectric constant also improved more than three times at 1 kHzcomparing PVA and PVA-10 wt% CuO.
Mohammadi-Gh, M.,Akrami, V. Techno-Press 2010 Structural Engineering and Mechanics, An Int'l Jou Vol.36 No.6
An experimental investigation is conducted here to study the effects of applying frictional sliding fuses (FSF) in concrete infilled steel frames. Firstly, the influences of some parameters on the behavior of the sliding fuse are studied: Methods of adjusting the FSF for a certain sliding strength are explained and influences of time duration, welding and corrosion are investigated as well. Based on the results, time duration does not significantly affect the FSF, however influences of welding and corrosion of the constitutive plates are substantial. Then, the results of testing two 1/3 scale single-storey single-bay concrete infilled steel frames having FSF are presented. The specimens were similar, except for different regulations of their fuses, tested by displacement controlled cyclic loading. The results demonstrate that applying FSF improves infill behaviors in both perpendicular directions. The infilled frames with FSF have more appropriate hysteresis cycles, higher ductility, much lower deteriorations in strength and stiffness in comparison with regular ones. Consequently, the infills, provided with FSF, can be regarded as an engineered element, however, special consideration should be taken into the affecting parameters of their fuses.
이건호(GH Lee),이홍관(HG Lee),박학열(HY Park),김성림(SR Kim) 대한산부인과학회 1996 Obstetrics & Gynecology Science Vol.39 No.10
To evaluate the efficacy of pelviscopic surgery in gynecologic patient, we have reviewed 336 patients treated pelviscopically from December 1993 to April 1996. The results were as follows, 1. The common indications were ectopic preganancy(33.0%), ovarian cyst(27.4%), myoma(19.0%). 2. The frequent types of surgery were salpingectomy(29.2%), salpingo-oophorectomy(22.3%), L.A.V.H. operation(22.0%). 3. Mean age and parity of patients were 34.9 and 1.54. 4. Mean duration of hospitalization was 2.7 days. 5. The most common complication was hemorrhage at the puncture site, but in a few patients. In our conclusion, pelviscopic surgery makes minimal surgical incision and minimal postoperative adhesion, low morbidity rate and short hospitalization, early returning to social activity. This pelviscopic surgery is safe and effective in treatment of gynecologic diseas.