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| 1 | Evaluation of an erosion-sediment transport model for a hillslope using laboratory flume data显示文摘Climate change can escalate rainfall intensity and cause further increase in sediment transport in arid lands which in turn can adversely affect water quality. Hence, there is a strong need to predict the fate of sediments in order to provide measures for sound erosion control and water quality management. The presence of microtopography on hillslopes influences processes of runoff generation and erosion, which should be taken into account to achieve more accurate modelling results. This study presents a physically based mathematical model for erosion and sediment transport coupled to one-dimensional overland flow equations that simulate rainfall-runoff generation on the rill and interrill areas of a bare hillslope. Modelling effort at such a fine resolution considering the flow connection between interrill areas and rills is rarely verified. The developed model was applied on a set of data gathered from an experimental setup where a 650 cm×136 cm erosion flume was pre-formed with a longitudinal rill and interrill having a plane geometry and was equipped with a rainfall simulator that reproduces natural rainfall characteristics. The flume can be given both longitudinal and lateral slope directions. For calibration and validation, the model was applied on the experimental results obtained from the setup of the flume having 5% lateral and 10% longitudinal slope directions under rainfall intensities of 105 and 45 mm/h, respectively. Calibration showed that the model was able to produce good results based on the R2(0.84) and NSE(0.80) values. The model performance was further tested through validation which also produced good statistics(R2=0.83, NSE=0.72). Results in terms of the sedigraphs, cumulative mass curves and performance statistics suggest that the model can be a useful and an important step towards verifying and improving mathematical models of erosion and sediment transport. | Anya Catherine CARGUELLES MinJae JUNG Kristine Joy BMALLARI GiJung PAK Hafzullah AKSOY Levent M KAVVAS Ebru ERIS JaeYoung YOON YoungJoon LEE SeonHwa HONG | 2014 | Journal of Arid Land2014，6，6： | 3 |
| 2 | Prevalence of microscopic colitis in patients with diarrhea of unknown etiology in Turkey显示文摘AIM: To investigate the prevalence and demography of microscopic colitis in patients with diarrhea of unknown etiology and normal colonoscopy in Turkey. METHODS: Between March, 1998 to July, 2005, 129 patients with chronic non-bloody diarrhea of unexplained etiology who had undergone full colonoscopy with no obvious abnormalities were included in the study. Two biopsies were obtained from all colonic segments and terminal ileum for diagnosis of microscopic colitis. On histopathologic examination, criteria for lymphocytic colitis (intraepithelial lymphocyte ≥ 20 per 100 intercryptal epithelial cells, change in surface epithelium, mononuclear infiltration of the lamina propria) and collagenous colitis (subepithelial collagen band thickness ≥ 10 μm) were explored. RESULTS: Lymphocytic colitis was diagnosed in 12 (9%) patients (Female/Male: 7/5, mean age: 45 year, range: 27-63) and collagenous colitis was diagnosed in only 3 (2.5%) patients (all female, mean age: 60 years, range: 54-65).CONCLUSION: Biopsy of Turkish patients with the diagnosis of chronic non-bloody diarrhea of unexplained etiology and normal colonoscopic findings will reveal microscopic colitis in approximately 10% of the patients. Lymphocytic colitis is 4 times more frequent than collagenous colitis in these patients. | Levent Erdem Sadιk Yιldιrιm Nihat Akbayιr Banu Yιlmaz Necati Yenice Orhan Sami Gültekin nder Peker | 2008 | World Journal of Gastroenterology2008，14，27： | 2 |
| 3 | Estimation of concentration and temperature profiles for methane-steam reforming reaction in a porous catalyst显示文摘 | Levent M Budak G Karabulut A | 1998 | Fuel Processing Technol1998，55，： | 2 |
| 4 | Speaker transformation algorithm using segmental codebooks (STASC) 显示文摘 | LEVENT ARSLAN M | 1999 | Speech Communication1999，2，8： | 1 |
| 5 | High- throughput scintillation proximity assay for transglutaminase activity measurement显示文摘 | Andras M Levente K Andras K | 2005 | Anal Biochem2005，343，： | 1 |
| 6 | Bearing damage detection via wavelet packet decomposition of the stator current显示文摘 | Eren Levent Devaney M J | 2004 | IEEE Instrumentation & Measurement2004，53，2： | 1 |
| 7 | The effect of bacteria+enzyme mixture silage inoculant on the fermenta-tion characteristic,cell wall contents and aerobic sta-bilities of maize silage显示文摘 | Fisun K Levent C M Levent O | 2008 | Pakistan Journal of Nutri-tion2008，7，2： | 1 |
| 8 | Three-dimensional ultrasonography of normal fetal heart∶comparison with two-dimensional imaging显示文摘 | Pretorius DH Sklansky MS | 1998 | J Ultraso und Med1998，17，6： | 1 |
| 9 | Bayesian reconstruction of 3d human motion from single-camera video 显示文摘 | Howe N Levention M Freeman W | 1999 | Advances in Neural Information Processing Systems1999，12，： | 1 |
| 10 | A Pessimistic Approach to Trust in Mobile Agent Platforms显示文摘 | UWE G WILHELM SEBASTIAN M STAAMANN LEVENTE BUTTYAN | 2000 | IEEE COMPUTING2000，09，： | 1 |
| 11 | Palmitoylation regulates raft affinity for the majority of integral raft proteins显示文摘 | LEVENTAL I LINGWOOD D GRZYBEK M | 2010 | Proc Natl Acad Sci USA2010，107，22： | 1 |
| 12 | Optimization of desulphurization of Artvin--Yusufeli lignite with acidic hydrogen peroxide solutions显示文摘 | Levent M Kaya O Kocakerim M | 2007 | Fuel2007，86，78： | 1 |
| 13 | Intracerebroventricular administration of ethyl-choline mustard aziridinium ion (AF64A) reduces release of acetylcholine from rat hippocampal slices 显示文摘 | Leventer S Mckeag D Clancy M | 1985 | Neuropharmacology1985，24，5： | 1 |
| 14 | Quantitive analysis of the drainage after neck dissection 显示文摘 | Levent E Gonca Y Atilla M | 2000 | Otolaryngol Head Neck Surg2000，123，3： | 1 |
| 15 | Large endometrial polyp in a patient on long-term mifristone therapy显示文摘 | Martineaun P A Levental M | 2000 | Ultrasound Med2000，19，7： | 1 |
| 16 | Differential effects of the cyclin-dependent kinase inhibitors p27Kip1, p21cip1, and p16Ink4 on vascular smooth muscle cell proliferation显示文摘 | Tanner Manfred B Levent M Akyurek Hong S | 2000 | Circulation2000，101，： | 1 |
| 17 | Ischemia-induced transplant arterioscleyosis in the rat显示文摘 | M Levent A Magnus A | 1996 | Arterioscler Thromb Vasc Biol1996，16，1： | 1 |
| 18 | Combining geometry domain knowledge to interpret hand- drawn diagrams显示文摘 | leslie M Levent G | 2005 | Computers and Graphics2005，，4： | 1 |
| 19 | The effect of bacteria+enzyme mixture silage inoculant on the fermentation characteristic,cell wall contents and aerobic stabilities of maize silage显示文摘 | Fisun K Levent C M Levent O | 2008 | Pakistan Journal of Nutrition2008，7，2： | 1 |
| 20 | Three dimensional ultrasonography of normal fetal heart: comparison with two-dimensional imaging显示文摘 | Levental M Pretorius DH Sklansky MS | 1998 | J Ultrasound Med1998，17，6： | 1 |
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