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- 저자 : Cömert (검색결과 3 건)
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Utilization of Marble Dust, Fly Ash and Waste Sand (Silt-Quartz) in Road Subbase Filling Materials
S. Flrat,G. Yllmaz,A. T. Cömert,M. Sümer 대한토목학회 2012 KSCE JOURNAL OF CIVIL ENGINEERING Vol.16 No.7
Large volumes of earthen materials are used in construction each year in Turkey and elsewhere. The wastes generated from these materials can be utilised in various applications including road subbase filling materials. In this study, three different types of wastes namely fly ash, marble dust and waste sand are used. These wastes were mixed with natural soils as a potential alternative filling materials in the road subbase. Two types of natural soils were replaced with 0%, 5%, 10%, 15%, 20% of fly ash, marble dust and waste sand. Standard compaction, permeability and saturated California Bearing Ratio (CBR) tests, X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM) analysis were performed on two types of natural soils, containing three industrial waste types in different ratios. The study indicates that the fly ash, marble dust and waste sand are fairly good additive materials in road subbase fill and reaction substantially improves their CBR, swelling ratio and water conductivity. It was found that a clear optimum replacement level of 15% for all of these by products for medium and low plasticity type of soils.
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Caner Kılıç,Ümit Tunçel,Metin Kaya,Ela Cömert,Samet Özlügedik 대한이비인후과학회 2017 Clinical and Experimental Otorhinolaryngology Vol.10 No.4
Objectives. The aim of this study was to compare the effect of the presence of one or two arytenoids on early/late period swallowing-aspiration functions. Methods. Supracricoid partial laryngectomy (SCPL) with the diagnosis of laryngeal cancer between 2012 and 2014 were retrospectively evaluated. The patients were categorized into two groups as follows: group I, patients who underwent SCPL with one arytenoid cartilage and group II, patients who underwent SCPL with two arytenoid cartilages. The time of decannulation and oral feeding onset, and swallowing-aspiration functions were evaluated and compared in the early nutritional period, first, and third months. Results. There was no significant correlation between decannulation time and swallowing-aspiration. The aspiration rates in group I and group II were similar and there was no significant difference in oral feeding onset and aspiration grades in the first and third months between both groups. Conclusion. We found similar oncological and functional outcomes in SCPL which protected one or two arytenoid cartilages. Therefore we suggest to be performed one arytenoid cartilage SCPL in selected patients who was advance stage and tumor volume over with larynx cancer.
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Mustafa Erkan Sarı,Mehmet Mutlu Meydanlı,Osman Türkmen,Günsü Kimyon Cömert,Ahmet Taner Turan,Alper Karalök,Hanifi Şahin,Ali Haberal,Eda Kocaman,Özgür Akbayır,Baki Erdem,Ceyhun Numanoğlu,Kemal Güngördü 대한부인종양학회 2017 Journal of Gynecologic Oncology Vol.28 No.4
Objective: To assess the prognosis of surgically-staged non-invasive uterine clear cell carcinoma (UCCC), and to determine the role of adjuvant therapy. Methods: A multicenter, retrospective department database review was performed to identify patients with UCCC who underwent surgical treatment between 1997 and 2016 at 8 Gynecologic Oncology Centers. Demographic, clinicopathological, and survival data were collected. Results: A total of 232 women with UCCC were identified. Of these, 53 (22.8%) had surgically-staged non-invasive UCCC. Twelve patients (22.6%) were upstaged at surgical assessment, including a 5.6% rate of lymphatic dissemination (3/53). Of those, 1 had stage IIIA, 1 had stage IIIC1, 1 had stage IIIC2, and 9 had stage IVB disease. Of the 9 women with stage IVB disease, 5 had isolated omental involvement indicating omentum as the most common metastatic site. UCCC limited only to the endometrium with no extra-uterine disease was confirmed in 41 women (73.3%) after surgical staging. Of those, 13 women (32%) were observed without adjuvant treatment whereas 28 patients (68%) underwent adjuvant therapy. The 5-year disease-free survival rates for patients with and without adjuvant treatment were 100.0% vs. 74.1%, respectively (p=0.060). Conclusion: Extra-uterine disease may occur in the absence of myometrial invasion (MMI), therefore comprehensive surgical staging including omentectomy should be the standard of care for women with UCCC regardless of the depth of MMI. Larger cohorts are needed in order to clarify the necessity of adjuvant treatment for women with UCCC truly confined to the endometrium.
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