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| 1 | An approach to forward looking FMCW radar imaging based on two-dimensional Chirp-Z transform显示文摘Airborne forward looking radar imaging, which is an important work mode of imaging radar system, has many advantages combined with frequency modulated continuous wave (FMCW) technology. This paper studies the configuration with one central antenna element for signal transmitting and other antenna elements for signal receiving. According to its imaging geometry, the analytical expression of the received signal for forward looking imaging radar based on FMCW is given. By performing the equivalent phase center principle, the received signal is equalized to the case of system configuration with antenna both for transmitting and receiving signals. The Doppler frequency shift effect, induced by the platform’s continuous motion while radar transmits and receives signals, is analyzed in detail and the approximate compensation method is shown. Based on this, a novel method for forward looking FMCW radar imaging is developed, which adopts two-dimensional Chirp-Z transform to implement scaling operation. Also the complete derivation process of the algorithm and the expression of each compensation factor are presented. The whole algorithm only includes FFT and complex multiplication, with interpolation free, and is easy to implement in reality. Simulation results verify the correctness of the analysis and the validity of the proposed algorithm. | LIANO Yi WANG HongXian ZHANG Long BAO Zheng | 2010 | Science China(Information Sciences)2010，53，8： | 6 |
| 2 | Sensitivity,specificity and predictive values of anterior chamber tap in cases of bacterial endophthalmitis显示文摘Background:To assess the sensitivity,specificity,positive predictive value and negative predictive value of anterior chamber tap for the diagnosis of bacterial endophthalmitis on a population with high prevalence.Methods:Retrospective,single centre,case series study.We reviewed all medical records with clinical diagnosis of bacterial endophthalmitis in our hospital from January 1st,2000 to December 31st 2014.From each record,we documented general demographic data,best corrected visual acuity and vitreous and aqueous tap microbiological results.All cases were further divided according to the endophthalmitis aetiology to perform individual calculations of sensitivity,specificity,positive predictive value,negative predictive value,accuracy and prevalence.We used the results of the vitreous tap as the gold standard for diagnosis of bacterial endophthalmitis.We excluded those records in which the aqueous and vitreous samples were not taken simultaneously or had an incomplete microbiological report.Significance were assessed with chi squared statistics,with an alpha value of 0.05 for statistical significance.Results:A total of 190 cases fulfilled the inclusion/exclusion criteria.Positive culture rate from vitreous samples was 64.74%.Positive culture rate from aqueous sample was 32.11%.Bacteria isolated from aqueous samples matched those isolated from vitreous samples 78.68%of the time.The overall sensitivity was 38.21%,specificity:75.51%,positive predictive value:79.66%,negative predictive value:32.74%(p=0.08).Subgroup analysis showed that anterior chamber taps in cases of post-surgical endophthalmitis had a moderate to low sensitivity(37.73%),high specificity(93%)and high positive predictive value(95%)(p<0.04).Conclusion:The sensitivity and specificity of anterior chamber tap are low and should not be used for critical therapeutic decisions in patients with suspected bacterial endophthalmitis.In cases of post-surgical endophthalmitis,the result of an anterior chamber tap could be used for therapeutic guidance,but only in conjunction with clinical presentation and in the absence of a better method for diagnosis. | Carl Sjoholm-Gomez de Liano Vidal F.Soberon-Ventura Guillermo Salcedo-Villanueva Abril Santos-Palacios Jose Luis Guerrero-Naranjo Jans Fromow-Guerra Gerardo García-Aguirre Virgilio Morales-Canton Raul Velez-Montoya | 2017 | Eye and Vision2017，4，1： | 3 |
| 3 | Epidemiology of acute renal failure:A prospective,multicenter,community-based study显示文摘 | Pascual J | 1996 | Kidney Int1996，50，： | 1 |
| 4 | Synergy Effect in the Combined Photodegradation of an Azo Dye by Titanium dioxide Photocatalysis and Photo Fenton Oxidation显示文摘 | Panagiotis Bouras Panagiotis Lianos | 2008 | Catal Lett2008，123，： | 1 |
| 5 | The spectrum of acute renal failure in the intensive care unit compared with that seen in other settings显示文摘 | Liano F Junco E Pascual J | 1998 | Kidney Int1998，53，： | 1 |
| 6 | Prognosis of acute tubular necrosis: an extended prospectively contrasted study显示文摘 | Liano F Gallego A Paseual J | 1993 | Nephron1993，63，1： | 1 |
| 7 | Course and prognosis of acute renal failure in the very old : Results of multi2center survey in Madrid , Spain显示文摘 | Liano F Pascual J | 1994 | J Am Soc Nephrol1994，5，： | 1 |
| 8 | Fluorescence Probe Studies of the Effect of Concentration on the State of Aggregation of Surfactants in Aqueous Solution显示文摘 | Lianos P Zana R | 1981 | J Colloid ltuerface Sci1981，84，1： | 1 |
| 9 | The elderly patient with acute kidney injury 显示文摘 | Pascual J Liano F Ortuno J | 1995 | J Am Soc Nephrol1995，6，： | 1 |
| 10 | Pheochromocy- toma inherited associations, bilaterality, and cortex preserva- tion显示文摘 | Inabnet W B Carag liano P Pertsem lid is D | 2000 | Surgery2000，128，6： | 1 |
| 11 | The spectrum of acute renal failure in the intensive care unit compared with that seen in other settings显示文摘 | Liano F Junco E Pascual J | 1998 | Kidney Int1998，53，66： | 1 |
| 12 | Morbidity and mortality in gastrectomy with D2 lymphadenectomy in a specialised unit显示文摘 | Diaz de Liano A Yarnoz C Aguilar R | | 0，，01： | 1 |
| 13 | Morbidity and mortality in gastrectomy with D2 lymphadenectomy in a spe- cialised unit 显示文摘 | DIAZ DE LIANO A YARNOZ C AGUILAR R | 2008 | Cir Esp2008，83，1： | 1 |
| 14 | Mechanisms of HO-l mediatedattenuation of renal immune injury : a gene profiling study 显示文摘 | DUANN P LIANOS E A | 2011 | Transl Res2011，158，4： | 1 |
| 15 | Optimal Intercept Missile Guidance Strategies with Autopilot lag 显示文摘 | Chen R H Speyer J L Lianos D | 2010 | Journal of Guidance Control and Dynamics2010，33，4： | 1 |
| 16 | Clinicopathological fea- tures of primary fallopian tube carcinoma: a single institution experi- ence显示文摘 | Papadimitriou CA Markaki S Lianos E | 2009 | Eur J Gynaeeol Oncol2009，30，4： | 1 |
| 17 | Dynamicsequencing of circulating tumor DNA: novel noninvasive cancer bi-omarker显示文摘 | LIANOS G D MANGANO A KOURAKLIS G | 2014 | Biomark Med2014，8，5： | 1 |
| 18 | Pure versus metal-ion-doped nanocrystalline titania for photocatalysis显示文摘 | Panagiotis Bouras Elias Stathatos Panagiotis Lianos | 2007 | Appl Catal B:Env2007，73，12： | 1 |
| 19 | The spectrum of acute renal failure in the intense care unit comared with that seen in other setting 显示文摘 | Liano F Junco E Pascual J | 1998 | Kidney Int1998，53，566： | 1 |
| 20 | Study of the efficiency of visibleAight photocatalytie degradation of basic blue adsorbed on pure and doped mesoporous titannia film 显示文摘 | Elias Stathatos Tatyana petrova panagiotis Lianos | 2001 | langmuir2001，17，16： | 1 |
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