维普中文期刊产品整合服务
733篇 您的检索式:作者名="RenZ"
    题名 作者 年代 出处 被引量
1A Low-Complexity PTS Based on Greedy and Genetic Algorithm for OFDM Systems显示文摘Partial transmit sequence(PTS) is one of effective technique to reduce high Peak-to-average power ratio(PAPR) in Orthogonal frequency division multiplexing(OFDM) system. However, the complexity of Original PTS(O-PTS) increases exponentially with the number of sub-blocks. To reduce the computational complexity while still offering a lower PAPR, a new PTS method is proposed to search for suboptimal rotating vectors in this paper. In the proposed method, the candidate rotation vectors are generated based on greedy and genetic algorithm.We also combine the proposed method and the superimposed training sequence method to get a further PAPR reduction. The theory and simulations results show that the proposed method can achieve better PAPR reduction and significantly reduce the computational complexity.LUO Renze ZHANG Chengsen NIU Na LI Rui 2015Chinese Journal of Electronics2015,24,4:10
2Pathotyping of Australian isolates of Marek’s disease virus and association of pathogenicity with meq gene polymorphism显示文摘KatrinG. Renz Julie Cooke Nadeene Clarke BrianF. Cheetham Zahid Hussain A.F.M. Fakhrul Islam GregoryA. Tannock StephenW. Walkden-Brown 2012Avian Pathology2012,,2:3
3Hepatocellular carcinoma with child Pugh-A Cirrhosis treated with stereotactic body radiotherapy显示文摘AIM To evaluate the control, survival, and hepatic function for Child Pugh(CP)-A patients after Stereotactic body radiotherapy(SBRT) in hepatocellular carcinoma(HCC).METHODS From 2009 to 2016, 40 patients with Barcelona Liver Clinic(BCLC) stages 0-B HCC and CP-A cirrhosis completed liver SBRT. The mean prescription dose was 45 Gy(40 to 50 Gy in 4-5 fractions). Local relapse, defined as recurrence within the planning target volume was assessed with intravenous multiphase contrast computed tomography or magnetic resonance imaging every 4-6 mo after completion of SBRT. Progression of cirrhosis was evaluated by CP and Model for End Stage Liver Disease scores every 3-4 mo. Toxicities were graded per the Common Terminology Criteria for Adverse Events(v4.03). Median follow-up was 24 mo.RESULTS Forty-nine HCC lesions among 40 patients were analyzed in this IRB approved retrospective study. Median tumor diameter was 3.5 cm(1.5-8.9 cm). Six patients with tumors ≥ 5 cm completed planned selected transarterial chemoembolization(TACE) in combination with SBRT. Eight patients underwent orthotropic live transplant(OLT) with SBRT as a bridging treatment(median time to transplant was 12 mo, range 5 to 23 mo). The Pathologic complete response(PCR) rate in this group was 62.5%. The 2-year in-field local control was 98%(1 failure). Intrahepatic control was 82% and 62% at 1 and 2 years, respectively. Overall survival(OS) was 92% and 60% at 1 and 2 years, with a median survival of 41 mo per Kaplan Meier analysis. At 1 and 2 years, 71% and 61% of patients retained CPA status. Of the patients with intrahepatic failures, 58% developed progressive cirrhosis, compared to 27% with controlled disease(P = 0.06). Survival specific to hepatic failure was 92%, 81%, and 69% at 12, 18, and 24 mo. There was no grade 3 or higher toxicity. On univariate analysis, gross tumor volume(GTV) < 23 cc was associated with freedom from CP progression(P = 0.05), hepatic failure-specific survival(P = 0.02), and trended with OS(P = 0.10).CONCLUSION SBRT is safe and effective in HCC with early cirrhosis and may extend waiting time for transplant in patients who may not otherwise be immediate candidates.Shaakir Hasan Ngoc Thai Tadahiro Uemura Vijay Kudithipudi Paul Renz Stephen Abel Alexander V Kirichenko 2017World Journal of Gastrointestinal Surgery2017,9,12:2
4Minimization of excess sludge production for biological wastewater treatment显示文摘Yuansong Wei Renze T. Van Houten Arjan R. Borger Dick H. Eikelboom Yaobo Fan 2003Water Research2003,,18:2
5Airway epithelial cells produce neurotrophins and promote the survival of eosinophils during allergic airway inflammation显示文摘Christian Hahn Ariyan Pirayesh Islamian Harald Renz Wolfgang Andreas Nockher 2006The Journal of Allergy and Clinical Immunology2006,,4:2
6Simple sequences are ubiquitous repetitive components of eukaryotic genomes 显示文摘Tautz D Renz M 1984Nucleic Acids Res1984,12,10:2
7多杀巴斯德菌致假体周围感染显示文摘目的分析多杀巴斯德菌致假体周围感染的特点。方法计算机检索Pubmed、Cochrane Library、Web of Science数据库自1998年1月至2018年1月多杀巴斯德菌引起假体周围感染的相关文献,根据纳入标准与排除标准进一步筛选。结果共收集9篇文献。其中6篇来自欧洲国家,3篇来自美国。入选文献中共10例患者。平均年龄70(57~84)岁,女性患者6例。膝关节感染7例,髋关节感染2例,肩关节感染1例。8例与猫接触相关,1例与马接触相关,1例与狗接触相关。5例合并既往病史,其中4例与多杀巴斯德菌假体周围感染危险因素相关。5例X线报告中2例X线发现有假体松动。白细胞计数、C反应蛋白、血浆沉降率均高于正常值,6例关节穿刺液培养结果均为阳性。在抗生素治疗加手术干预的所有病例中,≥1年随访结果显示治愈。结论多杀巴斯德菌假体周围感染患者多数存在明确的动物接触史。早期诊断并通过手术加抗生素治疗可以获得良好的预后。李程 Nora Renz Andrej Trampuz 2019骨科临床与研究杂志2019,4,1:2
8超声裂解法在诊断假体周围感染的应用显示文摘人工关节置换术是一种有效、常用的骨科手术技术,能够改善关节功能,提高患者的生活质量。假体周围感染是人工关节置换术后最严重的并发症。虽然发生率很低,在膝、肩关节置换术后的发生率<1%,髋关节置换术后发生率<2%[1],但是一旦发生感染给患者带来巨大的痛苦和经济负担。一份来自发展中国家的报告显示[2],假体周围感染患者的治疗费用可以比普通住院患者费用高24倍。早期明确诊断感染,对后续的手术治疗起着关键的作用[1]。李程 Nora Renz Andrej Trampuz 2019实用骨科杂志2019,25,8:2
9REDUCING THE PEAK-TO-AVERAGE POWER RATIO OF OFDM SYSTEM WITH LOW COMPLEXITY显示文摘This paper proposes a companding scheme, where small signals are enlarged and large signals are reduced, to reduce the Peak-to-Average Power Ratio(PAPR). Computer simulation results show that the proposed technique has two advantages at least when compared with the conventional methods such as partial transmit sequence, selective mapping and the previous companding. First, it gets better PAPR performances with a lower complexity. Second, the scheme achieves greater performances gain with hardly any damnification of OFDM signals in some degree.Luo Renze Jing Longjiang Luo Lang Li Jie Zhu Weile 2006Journal of Electronics(China)2006,23,1:2
10Optimization of the seismic processing phase-shift plus finite-difference migration operator based on a hybrid genetic and simulated annealing algorithm显示文摘Although the phase-shift seismic processing method has characteristics of high accuracy,good stability,high efficiency,and high-dip imaging,it is not able to adapt to strong lateral velocity variation.To overcome this defect,a finite-difference method in the frequency-space domain is introduced in the migration process,because it can adapt to strong lateral velocity variation and the coefficient is optimized by a hybrid genetic and simulated annealing algorithm.The two measures improve the precision of the approximation dispersion equation.Thus,the imaging effect is improved for areas of high-dip structure and strong lateral velocity variation.The migration imaging of a 2-D SEG/EAGE salt dome model proves that a better imaging effect in these areas is achieved by optimized phase-shift migration operator plus a finite-difference method based on a hybrid genetic and simulated annealing algorithm.The method proposed in this paper is better than conventional methods in imaging of areas of high-dip angle and strong lateral velocity variation.Luo Renze Huang Yuanyi Liang Xianghao Luo Jun Cao Ying 2013Petroleum Science2013,10,2:2
11C/C-SiC composites for advanced friction systems显示文摘 HEIDENREICH B RENZ R 2002Advanced Engineering Materials2002,4,7:1
12Muhivisceral and isolat- ed intestinal procurement techniques 显示文摘Yersiz H Renz JF Hisatake GM 2003Liver Transpl2003,9,8:1
13Elimination of the cardiac natriaretic pept~des B-type natriuret~c pept~de (BNP) and N-terminal proBNP by hemodialysis显示文摘Wahl HG Graf S Renz H 2004C]in Chem2004,50,:1
14Antisense inhibition of the GDP-mannose pyrophosphorylase reduces the ascorbate content in transgenic plants leading to developmental changes during senescens显示文摘KELLER R SPRINGER F RENZ A 1999Plant J1999,19,:1
15Neurotrophins in inflammatory lung diseases:modulators of cell differentiation and neuroimmune interactions显示文摘Nockther WA Renz H 2003Cytokine Growth Factor Rev2003,14,6:1
16C/C-SiC Compos- ites for advanced friction systems显示文摘KRENKEL W HEIDENREICH B RENZ R 2002Advanced Engineering Ma- terials2002,4,8:1
17Oral antihistamines reduce the side effects from rapid vancomycin infusion显示文摘Renz CL Thurn JD Finn HA Lynch JP Moss J 1998Anesth Analg1998,87,3:1
18C/C-SiC composites for advanced friction systems 显示文摘KRENKEL W HEIDENREICH B RENZ R 2002Advanced Engineering Materials2002,4,7:1
19The distribution and ecology of radiolaria in the central Pa- cific: Plankton and surface sediments显示文摘Renz G W 1976Bulletin of the Scripps In- stitution of Oceanography1976,22,:1
20Pathotyping of Aus- tralian isolates of Marekg disease virus and association of pathogenicity with meq gene polymorphism 显示文摘Renz K G Cooke J Clarke N 2012Avian Pathol2012,41,2:1
返回顶部 每页显示:
共37页 首页 上一页 第1页 下一页 末页 /37 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费