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Adaptive Fuzzy Logic Despeckling in Non-Subsampled Contourlet transformed Ultrasound Pictures

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Intelligent Automation & Soft Computing 2023年第3期35卷 2755-2771页

作者： t.Manikandan S.karthikeyan J.Jai Jaganath Babu G.Babu Department of Electronics and Communication Engineering Rajalakshmi Engineering CollegeChennai602105India Department of Electronics and Communication Engineering Velammal Institute of TechnologyChennai601204India Center for System Design Chennai Institute of TechnologyChennai600069India Department of Bio-Medical Engineering Easwari Engineering CollegeChennai600089India

Signal to noise ratio in ultrasound medical images captured through the digital camera is poorer,resulting in an inaccurate *** a result,it needs an efﬁcient despeckling method for ultrasound images in clinical practice and *** article proposes a novel adaptive fuzzyﬁlter based on the direc-tionality and translation invariant property of the Non-Sub sampled Contour-let transform(NSCt).Since speckle-noise causes fuzziness in ultrasound images,fuzzy logic may be a straightforward technique to derive the output from the noisy ***ﬁltering method comprises detection andﬁltering ***,image regions classify at the detection stage by applying fuzzy inference to the directional difference obtained from the NSCt noisy ***,the system adaptively selects the better-suitedﬁlter for the speciﬁc image region,resulting in signiﬁcant speckle noise suppression and retention of detailed *** suggested approach uses a weighted averageﬁlter to distinguish between noise and edges at theﬁltering *** addition,we apply a structural similarity mea-sure as a tuning parameter depending on the kind of noise in the ultrasound *** proposed methodology shows that the proposed fuzzy adaptiveﬁlter effectively suppresses speckle noise while preserving edges and image detailed structures compared to existing approaches.

关键词： Image processing fuzzy logic directional differences classiﬁcation ultrasound technology

Modeling the impact of dam removal on channel evolution and sediment delivery in a multiple dam setting

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International Journal of Sediment Research 2019年第6期34卷 537-549页

作者： R.E.Poeppl t.Coulthard S.D.keesstra M.keiler Department of Geography and Regional Research University of Vienna School of Environmental Sciences University of Hull Wageningen Environmental Research Team SoilWater and Land Use 4. University of BernInstitute of Geography

Dam removal can generate geomorphic disturbances,including channel bed and bank erosion and associated abrupt/pulsed release and downstream transfer of reservoir sediment,but the type and rate of geomorphic response often are hard to *** situation gets even more complex in systems which have been impacted by multiple dams and a long and complex engineering *** previous studies one-dimensional(1-D) models were used to predict aspects of post-removal channel ***,these models do not consider two-dimensional(2-D) effects of dam removal such as bank erosion processes and lateral *** the current study the impacts of multiple dams and their removal on channel evolution and sediment delivery were modeled by using a 2-D landscape evolution model(CAESAR-Lisflood) focusing on the following aspects:patterns,rates,and processes of geomorphic change and associated sediment delivery on annual to decadal *** current modeling study revealed that geomorphic response to dam removal(i.e.,channel evolution and associated rates of sediment delivery) in multiple dam settings is variable and complex in space and *** in geomorphic system response is related to differences in dam size,the proximity of upstream dams,related buffering effects and associated rates of upstream sediment supply,and emerging feedback processes as well as to the presence of channel stabilization *** types and rates of geomorphic adjustment,using the 2-D landscape evolution model CAESAR-Lisflood,are similar to those reported in previous ***,the use of a 2-D method showed some advantages compared to1-D models,generating spatially varying patterns of erosion and deposition before and after dam removal that provide morphologies that are more readily comparable to field data as well as features like the lateral re-working of past reservoir deposits which further enables the maintenance of sediment delivery downstream.

关键词： Reservoir and river management Landscape evolution modeling Sediment pulses River engineering Legacy effects Complexity

Evaluation of hydrogeochemical characteristics of groundwater in parts of the lower Benue trough,Nigeria

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Chinese Journal Of Geochemistry 2010年第4期29卷 398-406页

作者： Nganje t.N. Adamu C.I. Ugbaja A.N. Amah A.E. Department of Geology University of Calabar

the aim of this work is to evaluate the hydrogeochemical characteristics of groundwater in parts of the lower Benue through in Nigeria as well as to evaluate the variation in groundwater chemistry data and the suitability of the groundwater for drinking and other domestic *** was based on chemical analyses of 44 water samples from existing wells and boreholes in the study *** the statistical analysis(wide ranges,median and standard deviation),it is obvious that there are significant variations in the quality/composition of groundwater in the period of *** calculated SAR,Na% and RSC values indicated that the water is of excellent to good quality and is suitable for *** and HCO3 are dominant with respect to the chemical composition of the *** the basis of water chemistry,hydrochemical indices and factor analysis the dominant controls or processes affecting the distribution of geochemical variables in the study area have been shown to be water/rock interaction which is mainly controlled by carbonate and silicate dissolution as well as anthropogenic influence to a lesser *** processes include cation exchange reactions and reverse ion exchange to a minor extent.

关键词：水文地球化学特征饮用地下水尼日利亚离子交换反应水化学指标海槽评价特别行政区

therapeutic drug monitoring in patients with inflammatory bowel disease

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World Journal of Gastroenterology 2014年第13期20卷 3475-3484页

作者： Andres J Yarur Maria t Abreu Amar R Deshpande David H kerman Daniel A Sussman Division of Gastroenterology University of Miami Leonard Miller School of MedicineMiamiFL 33136United States

thiopurine analogs and anti-tumor necrosis factor (tNF) agents have dramatically changed the therapeutics of inflammatory bowel diseases (IBD), improving short and long-term outcomes. Unfortunately some patients do not respond to therapy and others lose response over time. the pharmacokinetic properties of these drugs are complex, with high inter-patient variability. thiopurine analogs are metabolized through a series of pathways, which vary according to the patients’ pharmacogenetic profile. this profile largely determines the ratios of metabolites, which are in turn associated with likelihoods of clinical efficacy and/or toxicity. Understanding these mechanisms allows for manipulation of drug dose, aiming to reduce the development of toxicity while improving the efficacy of treatment. the efficacy of anti-tNF drugs is influenced by many pharmacodynamic variables. Several factors may alter drug clearance, including the concomitant use of immunomodulators (thiopurine analogs and methotrexate), systemic inflammation, the presence of anti-drug antibodies, and body mass. the treatment of IBD has evolved with the understanding of the pharmacologic profiles of immunomodulating and tNF-inhibiting medications, with good evidence for improvement in patient outcomes observed when measuring metabolic pathway indices. the role of routine measurement of metabolite/drug levels and antibodies warrants further prospective studies as we enter the era of personalized IBD care.

关键词： Inflammatory bowel disease Anti-tumor necrosis factor Infliximab Adalimumab Drug level Azathioprine thiopurines Antibodies Drug monitoring thioguanine

Assessing the biogenicity and syngenicity of candidate bioalteration textures in pillow lavas of the～2.52 Ga Wutai greenstone terrane of China

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Chinese Science Bulletin 2010年第2期55卷 188-199页

作者： McLOUGHLIN N FLIEGEL DJ FURNES H StAUDIGEL H SIMONEttI A ZHAO GuoChun ROBINSON P t Department of Earth Science and Center for Geobiology AUegaten 41 Bergen N-5007 Norway Scripps Institution of Oceanography University of California La Jolla CA 92093-0225 USA Department of Civil Engieering and Geological Sciences University of Notre Dame Indiana IN46556 USA Department of Earth Sciences The University of Hong Kong Pokfulam Road Hong Kong China Department of Earth Sciences Dalhousie University Halifax Nova Scotia B3H 4J1 Canada

住在 sub-seafloor 熔岩的微生物能够蚀刻暴烈的玻璃并且创造微米大小的隧道和坑。这些 bioalteration 踪迹的矿化作用保证这些质地熬过主人玻璃的变丑和转变到变形矿物质。如此的 bioalteration 质地的石块记录从在原处海洋的外壳在暴... 详细信息

住在 sub-seafloor 熔岩的微生物能够蚀刻暴烈的玻璃并且创造微米大小的隧道和坑。这些 bioalteration 踪迹的矿化作用保证这些质地熬过主人玻璃的变丑和转变到变形矿物质。如此的 bioalteration 质地的石块记录从在原处海洋的外壳在暴烈的玻璃以外远延长从 ophiolites 和前寒武纪的绿岩带包括元暴烈的玻璃。薄节从 N 的 Wutai 组从 2.52 Ga tholeiitic 枕头熔岩这里报导了的 petrographic 的调查。中国成立细丝状微质地。激光拉曼光谱学证实这些质地被 titanite 使矿物化。而且， Wutai 微质地在到从太古代的 greenschist 外形枕头熔岩的 bioalteration 质地的尺寸，形态学和分发是可比较的。在原处，诱导地由激光脱离多收集者 titanite 标明日期的 U-Pb 联合了团 spectrometry (LA-MC-ICP-MS ) 给 1.81 敢 ? 汢獥敳 ? 楷桴的年龄的血浆吗？

关键词：枕状熔岩候选人绿岩带纹理中国电感耦合等离子体质谱五台山地体

Higher incidence of steroid-induced ocular hypertension in keratoconus

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Eye and Vision 2016年第1期3卷 29-36页

作者： Anastasios John kanellopoulos Emerson M.Cruz Robert Edward t.Ang George Asimellis Laservision.gr Clinical and Research Eye Institute 17 Tsocha StreetAthens Postal Code:11521Greece NYU Medical School New YorkNYUSA Asian Eye Institute MakatiPhilippines

Background:to compare intraocular pressure(IOP)changes following topical dexamethasone administration for 1 month in keratoconic versus normal ***:this is a retrospective,single-center,non-randomized case series evaluation of 350 *** groups were formed:normal/control Group A(n_(A)=73),eyes that underwent excimer laser photorefractive keratectomy;and keratoconic(kCN)Group B(n_(B)=277),eyes that were subjected to partial laser photorefractive keratectomy combined with collagen cross-linking(the Athens Protocol).All eyes received the same post-operative regimen of topical dexamethasone 0.1%for at least 1 *** applanation tonometry IOP readings and central corneal thickness(CCt)measurements were *** with induced ocular hypertension(OHt,defined as post-operative IOP higher than 21 mmHg),were identified and correlated to refractive procedure,gender,and corneal ***:At 4 weeks postoperatively,OHt was noted on 27.4%(20/73 eyes)in Group A,and 43.7%(121/277 eyes)in kCN Group B,(pths post-operatively(following 5-months of discontinuing topical dexamethasone treatment and commencing treatment of IOP-lowering medications),OHt rate was 1.8%in Group A and 3.9%in the kCN Group ***:this study demonstrates a potentially significant pre-disposition of keratoconic eyes to the development of steroid-induced OHt.

关键词： keratoconus Intraocular pressure Corticosteroid induced ocular hypertension IOP spike Corneal collagen cross-linking CXL the Athens protocol topography-guided Photorefractive keratectomy Dexamethasone topical ophthalmic solution

A cost-effective gain-locked Erbium doped fiber amplifier

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A cost-effective gain-locked Erbium doped fiber amplifier

transient elastography improves detection of liver cirrhosis compared to routine screening tests

亚太地区通信会议暨光电子通信会议

作者： k.W.Na J.t.Choi W.J.Lee S.H.Park W.W.Yoon k.k.Lee Y.I.Choi Optical Communication Laboratory LGIC R&D Center 533 Hogye-dong Dongan-gu Anyang-shi kyongki-do 431-080 korea Optical Communication Laboratory LGIC R&D Center 533 Hogye-dong Dongan-gu Anyang-shi kyongki-do 431-080 korea Optical Communication Laboratory LGIC R&D Center 533 Hogye-dong Dongan-gu Anyang-shi kyongki-do 431-080 korea Optical Communication Laboratory LGIC R&D Center 533 Hogye-dong Dongan-gu Anyang-shi kyongki-do 431-080 korea Optical Communication Laboratory LGIC R&D Center 533 Hogye-dong Dongan-gu Anyang-shi kyongki-do 431-080 korea Optical Communication Laboratory LGIC R&D Center 533 Hogye-dong Dongan-gu Anyang-shi kyongki-do 431-080 korea Optical Communication Laboratory LGIC R&D Center 533 Hogye-dong Dongan-gu Anyang-shi kyongki-do 431-080 korea

A cost-effective gain controlscheme for erbium-doped fiber amplifiers ispresented. By sinusoidally modulating thepump laser and monitoring its light at the endof active medium, gain control is obtained,resulting in ve...

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World Journal of Gastroenterology 2015年第3期21卷 953-960页

作者： thomas Gobel Janine Schadewaldt-tümmers Lucas Greiner Christopher Poremba Dieter Haussinger Andreas Erhardt klinik für Gastroenterologie Hepatologie und InfektiologieUniversitatsklinikum Düsseldorf40225 DüsseldorfGermany klinik für Gastroenterologie Hepatologie und DiabetologiePetrus-Krankenhaus Wuppertal42283 WuppertalGermany Pathologie München-Nord Ernst-Platz-StraBe 280992 MünchenGermany

AIM:to investigate the diagnostic significance oftransient elastography(tE) in a daily routine clinical setting in comparison to clinical signs,laboratory parameters and ***:tE,ultrasound,laboratory parameters and cutaneous liver signs were assessed in 291 consecutive patients with chronic liver disease of various aetiologies who underwent liver biopsy in daily ***:Sensitivity of tE for the detection of liver cirrhosis was 90.4%,compared to 80.1% for ultrasound,58.0% for platelet count and 45.1% for cutaneous liver signs(P th histology).AUROC for tE was 0.760(95%CI:0.694-0.825).Combination of tE with ultrasound increased sensitivity to 96.1% and AUROC to 0.825(95%CI:0.768-0.882).tE correlated with laboratory parameters of cirrhosis progression like albumin(r =-0.43),prothrombin time(r =-0.44),and bilirubin(r = 0.34; P ticularly,in patients with Child Pugh score A or normal platelet count tE improved sensitivity for the detection of liver cirrhosis compared to ultrasound by 14.1%(P transient elastography is superior to routine diagnostic tests allowing detection of liver cirrhosis in additional 10%-16% of patients with chronic liver disease that would have been missed by clinical examinations.

关键词： transient elastography Fibroscan Liver cirrhosis Liver disease Chronic hepatitis

Production-worthy approach of Plasma Doping（PD）

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Production-worthy approach of Plasma Doping（PD）