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Sharadindu Mahadevappa Kotrashetti,Tejraj Pundalik Kale,Supriya Bhandage,Anuj Kumar 대한구강악안면외과학회 2015 대한구강악안면외과학회지 Vol.41 No.2
Objectives: Transpositioning of the inferior alveolar nerve to prevent injury in lower jaw has been advocated for orthognathic, pre-prosthetic and for implant placement procedures. However, the concept of infra-orbital nerve repositioning in cases of mid-face fractures remains unexplored. The infraorbital nerve may be involved in trauma to the zygomatic complex which often results in sensory disturbance of the area innervated by it. Ten patients with infraorbital nerve entrapment were treated in similar way at our maxillofacial surgery centre. Materials and Methods: In this article we are reporting three cases of zygomatico-maxillary complex fracture in which intra-operative repositioning of infra-orbital nerve into the orbital floor was done. This was done to release the nerve from fractured segments and to reduce the postoperative neural complications, to gain better access to fracture site and ease in plate fixation. This procedure also decompresses the nerve which releases it off the soft tissue entrapment caused due to trauma and the organized clot at the fractured site. Results: There was no evidence of sensory disturbance during their three month follow-up in any of the patient. Conclusion: Infraorbital nerve transposition is very effective in preventing paresthesia in patients which fracture line involving the infraorbital nerve.
On f-cosymplectic and (k, µ)-cosymplectic Manifolds Admitting Fischer-Marsden Conjecture
Sangeetha Mahadevappa,Halammanavar Gangadharappa Nagaraja 경북대학교 자연과학대학 수학과 2023 Kyungpook mathematical journal Vol.63 No.3
The aim of this paper is to study the Fisher-Marsden conjucture on f cosymplectic and (k, µ)-cosymplectic manifolds. First we prove that a compact f cosymplectic manifold satisfying the Fisher-Marsden equation R′*g = 0 is either an Einstein manifold or a local product of a Kahler manifold and an interval or a unit circle S1 . Further we obtain that in almost (k, µ)-cosymplectic manifolds with k < 0, the Fisher-Marsden equation has a trivial solution.
Ashok M. Sajjan,Mahadevappa Y. Kariduraganavar,B.K. Jeevan Kumar,Arjumandbanu A. Kittur 한국공업화학회 2013 Journal of Industrial and Engineering Chemistry Vol.19 No.2
Tetraethylorthosilicate incorporated hybrid poly(vinyl alcohol) membranes were grafted with glycidyltrimethylammonium chloride (GTMAC) in different mass%. The resulting membranes were subjected to physico-chemical investigations using Fourier transform infrared (FTIR) spectroscopy,wide-angle X-ray diffraction (WAXD), differential scanning calorimetry (DSC), thermogravimetry analysis (TGA) and scanning electron microscopy (SEM). The effects of grafting and feed composition on pervaporation performance of the membranes were systematically investigated. The membrane containing 30 mass% of GTMAC exhibited the highest separation selectivity of 1570 with a flux of 1.92 102 kg/m2 h at 30 8C for 10 mass% of water in the feed. The total flux and flux of water are almost overlapping each other, manifesting that these membranes could be used effectively to break the azeotropic point of water–isopropanol mixtures. From the temperature dependent diffusion and permeation values, the Arrhenius activation parameters were estimated. The activation energy values obtained for water permeation (Epw) are two to three times lower than those of isopropanol permeation (EpIPA), suggesting that the developed membranes have higher separation ability for water–isopropanol system. The Ep and ED values ranged between 63.73 and 33.07, and 62.78 and 32.75 kJ/mol, respectively. The positive heat of sorption (DHs) values was obtained for all the membranes, suggesting that Henry’s mode of sorption is predominant in the process.
Ashok M. Sajjan,H.G. Premakshi,Mahadevappa Y. Kariduraganavar,Y. Kariduraganavar 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.25 No.-
Glycidyltrimethylammonium chloride (GTMAC) grafted chitosan (CS) membranes were prepared by the solution casting technique. The chemical composition and morphological characteristics of the prepared GTMAC/CS membranes were investigated by various techniques such as Fourier transform infrared (FTIR) spectroscopy, wide-angle X-ray diffraction (WAXD), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA) and scanning electron microscopy (SEM). The effects of grafting and feed composition on pervaporation performance of the membranes were systematically studied. The membrane containing 40 mass% of GTMAC exhibited the highest separation selectivity of 2133 with a flux of 6.91 102 kg/m2 h at 30 8C for 10 mass% of water in the feed. The total flux and flux of water are almost overlapping each other, manifesting that these membranes could be used effectively to break the azeotropic point of water–isopropanol mixture. From the temperature dependent diffusion and permeation values, the Arrhenius activation parameters were estimated. The activation energy values obtained for water permeation (Epw) are significantly lower than those of isopropanol permeation (EpIPA), suggesting that the grafted membranes developed here have higher separation ability for water- isopropanol system. The positive heat of sorption (DHs) values was obtained for all the grafted membranes, suggesting that the Henry’s mode of sorption is predominant.
Divya Achari,Padmeshwary Rachipudi,Satishkumar Naik,Ramesh Karuppannan,Mahadevappa Kariduraganvar 한국공업화학회 2019 Journal of Industrial and Engineering Chemistry Vol.78 No.-
Chitosan-based polyelectrolyte complex membranes (PECMs) were developed by incorporatingpolystyrene sulfonic acid-co-maleic acid (PSSAMA) in the chitosan membrane matrix as a pervaporationmembrane by employing a solution technique. Fourier transform infrared (FTIR) spectroscopy, wideangleX-ray diffraction (WAXD), thermogravimetry analysis (TGA), differential scanning calorimetry(DSC), and scanning electron microscopy (SEM) were used to characterize the membranes. PECMs weretested for their potentiality to separate various azeotropic mixtures; water/ter-butanol, water/isopropanol, water/n-propanol and water/1, 4 dioxane at their azeotropic point. The PECMs containing9 mass% of PSSAMA manifest highest separation selectivity of 5352 with aflux of 4.145 10 2 kg /m2 h forthe azeotropic mixture of water/ter-butanol at 30 C. To confirm their stability at the higher temperature,the PECMs were assessed for pervaporation (PV) separation at 40, 50 and 60 C. For all PECMs totalfluxandflux of water appeared to be coinciding each other, signifying that PECMs could be used successfullyto break the azeotropic point of various azeotropic mixtures. The Arrhenius activation parameters weredetermined by diffusion and permeation values. The activation energy values procured for waterpermeation (Epw) were considerably lower than ter-butanol permeation (EpTBOH). The heat of sorption(DHs) values obtained for PECMs were negative, showing that Langmuir’s mode of sorption is dominant.
Seena Vengalil,Veeramani Preethish-Kumar,Kiran Polavarapu,Manjunath Mahadevappa,Deepha Sekar,Meera Purushottam,Priya Treesa Thomas,Saraswathi Nashi,Atchayaram Nalini 대한신경과학회 2017 Journal of Clinical Neurology Vol.13 No.1
Background and Purpose Studies of cases of Duchenne muscular dystrophy (DMD) and Becker muscular dystrophy (BMD) confirmed by multiplex ligation-dependent probe amplification (MLPA) have determined the clinical characteristics, genotype, and relations between the reading frame and phenotype for different countries. This is the first such study from India. Methods A retrospective genotype-phenotype analysis of 317 MLPA-confirmed patients with DMD or BMD who visited the neuromuscular clinic of a quaternary referral center in southern India. Results The 317 patients comprised 279 cases of DMD (88%), 32 of BMD (10.1%), and 6 of intermediate phenotype (1.9%). Deletions accounted for 91.8% of cases, with duplications causing the remaining 8.2%. There were 254 cases of DMD (91%) with deletions and 25 (9%) due to duplications, and 31 cases (96.8%) of BMD with deletions and 1 (3.2%) due to duplication. All six cases of intermediate type were due to deletions. The most-common mutation was a single-exon deletion. Deletions of six or fewer exons constituted 68.8% of cases. The deletion of exon 50 was the most common. The reading-frame rule held in 90% of DMD and 94% of BMD cases. A tendency toward a lower IQ and earlier wheelchair dependence was observed with distal exon deletions, though a significant correlation was not found. Conclusions The reading-frame rule held in 90% to 94% of children, which is consistent with reports from other parts of the world. However, testing by MLPA is a limitation, and advanced sequencing methods including analysis of the structure of mutant dystrophin is needed for more-accurate assessments of the genotype-phenotype correlation.