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| 1 | An efficient sparse channel estimator combining time-domain LS and iterative shrinkage for OFDM systems with IQ-imbalances显示文摘A time-domain(TD) least square(LS) channel estimator is first proposed to estimate channel parameters of OFDM system with IQ imbalances at both transmitter and receiver.Then,an iterative shrinkage(IS) algorithm from compressed sensing is adopted to further improve the estimation performance by using the TD-LS solution as the initial value of IS in the case of sparse channel.Simulation shows that our algorithm combining TD-LS and IS performs better on bit error rate than the frequency-domain LS and matching pursuit in sparse Hilly Terrain channel when the same LS equalizer is adopted. | SHU Feng ZHAO JunHui YOU XiaoHu WANG Mao CHEN Qian STEVAN Berber | 2012 | Science China(Information Sciences)2012，55，11： | 10 |
| 2 | ML integer frequency offset estimation for OFDM systems with null subcarriers:Estimation range and pilot design显示文摘In this paper the estimation range(ERG) of any null subcarriers(NSC) placement is further investigated and sufficient and necessary conditions of an NSC allocation that achieves a full ERG are defined.Then,a perfect distributed NSC allocation with the NSC distance larger than coherent bandwidth is devised to fully exploit frequency diversity of wireless channels and achieve a full ERG.Simulations confirmed that the propsoed FFT-based ML method of using this NSC placement has a smaller bandwidth overhead,achieves a fuller ERG and provides a better performance than the existing methods of using the consecutive NSC allocation at middle and high signal-to-noise ratios(SNRs). | SHU Feng BERBER Stevan WANG DongMing ZHANG QinChuan WANG Mao | 2010 | Science China(Information Sciences)2010，53，12： | 8 |
| 3 | 稀疏多径信道环境中MIMO-OFDM系统的IQ不平衡和信道联合估计显示文摘该文针对稀疏多径信道环境中的MIMO-OFDM系统所存在的IQ不平衡问题,提出了一种IQ不平衡参数和信道的联合估计方法。推导了联合估计的时域模型,提出了基于1 2l-l优化模型和平行坐标下降算法的联合估计算法。仿真结果表明,所提方法与传统的频域最小二乘算法和匹配追踪算法相比,显著提高了系统性能。 | 梁彦 束锋 张一晋 Berber Stevan | 2013 | 电子与信息学报2013，35，2： | 8 |
| 4 | Effect of early preoperative 5-fluorouracil on the integrity of colonic anastomoses in rats显示文摘AIM:To determine the effect of chemotherapy on wound healing by giving early preoperative 5-fluorouracil (5-FU)to rats with colonic anastomoses. METHODS:Sixty Albino-Wistar male rats(median weight,235 g)were used in this study.The rats were fed with standard laboratory food and given tap water ad libitum.The animals were divided into three groups: Group 1:Control group(chemotherapy was not administered),Group 2:Intraperitoneally(IP)administered 5-FU group(chemotherapy was administered IP to animals at a dose of 20 mg/kg daily during the 5 d preceeding surgery),Group 3:Intravenously(IV)administered 5-FU group.Chemotherapy was administered via the penil vein,using the same dosing scheme and duration as the second group.After a 3-d rest to minimize the side effects of chemotherapy,both groups underwent surgery.One centimeter of colon was resected 2 cm proximally from the peritoneal reflection,thensutured intermittently and subsequently end-to-end anastomosed.In each group,half the animals were given anaesthesia on the 3rd postoperative(PO)day and the other half on the 7th PO day,for in vivo analytic procedures.The abdominal incisions in the rats were dissected,all the new and old anastomotic segments were clearly seen and bursting pressures of each anastomotic segment,tissue hydroxyproline levels and DNA content were determined to assess the histologic tissue repair process. RESULTS:When the IV group was compared with the IP group,bursting pressures of the anastomotic segments on the 3rd and 7th PO days,were found to be significantly decreased,hydroxyproline levels at the anastomotic segment on the 7th PO day were significantly decreased(P<0.01). CONCLUSION:In this study,we conclude that early preoperative 5-FU,administered IV,negatively affects wound healing.However,IP administered 5-FU does not negatively affect wound healing. | Leyla Ozel M Sefa Ozel Ahmet Burak Toros Melih Kara Kemal Sirri Ozkan Gurkan Tellioglu Osman Krand Meral Koyuturk Ibrahim Berber | 2009 | World Journal of Gastroenterology2009，15，33： | 7 |
| 5 | Laparoscopic liver resection for malignancy:A review of the literature显示文摘AIM: To review the published literature about laparoscopic liver resection for malignancy.METHODS: A PubMed search was performed for original published studies until June 2013 and original series containing at least 30 patients were reviewed.RESULTS: All forms of hepatic resections have been described ranging from simple wedge resections to extended right or left hepatectomies. The usual approach is pure laparoscopic, but hand-assisted, as well as robotic approaches have been described. Most studies showed comparable results to open resection in terms of operative blood loss, postoperative morbidity and mortality.Many of them showed decreased postoperative pain,shorter hospital stays, and even lower costs. Oncological results including resection margin status and long-term survival were not inferior to open resection. CONCLUSION: In the hands of experienced surgeons,laparoscopic liver resection for malignant lesions is safe and offers some short-term advantages over open resection. Oncologically, similar survival rates have been observed in patients treated with the laparoscopic approach when compared to their open resection counterparts. | Eyas Alkhalili Eren Berber | 2014 | World Journal of Gastroenterology2014，20，37： | 5 |
| 6 | Predictors of survival after radiofrequency thermal ablation of colorectal cancer metastases to the liver: a prospective study显示文摘 | Berber E Pelley R Siperstein AE | 2005 | JClin Oncol2005，23，： | 1 |
| 7 | Survival after radiofrequency ablation of colorectal liver metastases: 10-year experience 显示文摘 | Siperstein AE Berber E Ballem N | 2007 | Ann Surg2007，246，4： | 1 |
| 8 | Cryoablation, percutaneous alcohol injection, and radiofrequency ablation for treatment of neuroen- docrine liver metastases 显示文摘 | Siperstein AE Berber E | 2001 | World J Surg2001，25，6： | 1 |
| 9 | Functional dissection of SIRT6 : identification of domains that regulate histone deacetylase activity and chromatin localization显示文摘 | Tennen R I Berber E Chua K F | 2010 | Mech Ageing Dev2010，131，3： | 1 |
| 10 | Prospective evaluation of sestamibi scan, ultrasonography, and rapid PTH to predict the success of limited exploration for sporadic primary hyperparathyroidism 显示文摘 | Siperstein A Berber E Mackey R | 2004 | Surgery2004，136，4： | 1 |
| 11 | Qua- ternary ammonium compound as bacteri- cide in hide brine curing and presoaking processes 显示文摘 | Veyselova C Birbir M Berber D | 2012 | Journal of the American Leather Chemists Association2012，107，10： | 1 |
| 12 | Thermal Contraction of CarbonFullerenes and Nanotubes 显示文摘 | Kwon Y K Berber S Tom6nek D | 2004 | Phys Rev Lett2004，92，01： | 1 |
| 13 | Experimental in- vestigation of performance of hot cascade type Ranque Hilsch vortex tube and exergy analysis显示文摘 | Dincer K Yilmaz Y Berber A | 2012 | Internation- al Journal of Refrigeration2012，34，4： | 1 |
| 14 | The use of the harmonic scapel vs conventional knot tying for vessel ligation in thyroid surgery显示文摘 | Allan E Eren Berber Ebru Morkoyun | 2002 | Arch Surg2002，137，2： | 1 |
| 15 | Efficacy of various con-centrations of NaOCl and Instrumentation techniques in reducingEnterococcus faecalis within root canals and dentinal tubules显示文摘 | Berber VB Gomes BP Sena NT | 2006 | Int Endod J2006，39，1： | 1 |
| 16 | The use of the harmonic scalpel vs conventional knot tying for vessel ligation in thyroid surgery显示文摘 | Siperstein AE Berber E Morkoyun E | 2002 | Arch Surg2002，137，2： | 1 |
| 17 | Human platelets target dendritic cell differentiation and production of proinflammatory cytokines显示文摘 | Kissel K Berber S Nockher A | | 0，，05： | 1 |
| 18 | Customer lifetime value: Marketing models and applications显示文摘 | Berber Paul D Nash Nada I | 1998 | Journal of Interactive Marketing1998，12，1： | 1 |
| 19 | Local recurrence after laparoscopic radiofrequency ablation of liver tumors:an analysis of 1032 tumors显示文摘 | Berber E Siperstein A | 2008 | Ann Surg Oncol2008，15，10： | 1 |
| 20 | Unusually high thermal conductivity of carbon nanotubes显示文摘 | BERBER S KWON Y K TOMANEK D | 2000 | Physical Review Letter2000，84，20： | 1 |
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