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156篇 您的检索式:作者名="Lammers P"
    题名 作者 年代 出处 被引量
1基于激光反射的土壤表面粗糙度测量装置设计与试验显示文摘为了实时获取土壤表面粗糙度数据,设计了一种基于激光三角测距原理的土壤表面粗糙度专用测量装置。采用激光扫描测距仪测量微位移,其精度高、响应速度快,测距分辨力高达0.1 mm,显著提高了土壤表面粗糙度的测量精度;借助于光电编码盘和螺杆组合实现高精度扫描定位;PDA作为上位机,农田环境下具有方便携带,大容量存储数据和智能化实时处理功能等优点。蔡祥 孙宇瑞 林剑辉 Schulze Lammers P 2010农业机械学报2010,41,1:30
2大田尺度下车载式土壤多参数测量方法研究显示文摘应用自行研制的土壤含水量、电导率与耕作阻力车载测试系统以及EM38电导率测试仪,在特定的耕作和施肥管理制度试验田中进行大田尺度下的土壤多参数车载测量研究。在土壤参数空间分布信息基础上进行相关分析,结果表明复合传感器具备农田土壤含水量和电导率变异响应能力,进一步建立了农田土壤电导率与含水量、耕作阻力以及施肥信息之间的统计预测模型。盛文溢 曾庆猛 林剑辉 Schulze Lammers P 孙宇瑞 2010农业机械学报2010,41,11:13
3牧场土壤含水率与坚实度空间变异与相关性分析显示文摘利用土壤水分/圆锥指数复合测量装置,应用精细农作技术体系网格定点测量与GPS定位,在一块面积约1.27 hm2的草地上获取了土壤含水率与坚实度空间分布基础数据,并针对采样过程中出现的数据缺失,用偏最小二乘法对数据进行修补。然后运用克里格插值法进行数字化成图,并在此基础上分别对含水率与坚实度的空间变异性及两者的相关性做了分析。程强 孙宇瑞 林剑辉 曾庆猛 Schulze Lammers P Schellberg J 2009农业机械学报2009,40,3:9
4基于3-D图像的植物亏水胁迫萎蔫体态辨识方法显示文摘萎蔫现象是植物亏水胁迫环境下表现出的一种生命特征。为了定量辨识植株的萎蔫体态,在应用激光扫描装置快速获取植株3-D图像基础上,定义了4种萎蔫指数,即叶面卷曲统计指数、叶片形心的高斯曲率、基于形心切平面的叶尖投影以及叶片边缘投影求和平均。实验方法将叶片萎蔫程度分为5个等级水平(LS1~LS5),通过逐一检验每种定义的萎蔫指数是否具有单调性得出可应用性结论。实验结果表明距离投影算法满足萎蔫指数的单调要求,尤其是叶片边缘投影求和平均萎蔫指数具有更好的鲁棒性。张慧娟 赵燕东 孙宇瑞 王聪颖 蔡祥 Schulze Lammers P 2011农业机械学报2011,42,1:8
5面向车载式测量的土壤含水量与电导率复合传感器设计显示文摘基于介电方法设计了符合车载测量要求的四环电极结构土壤含水量与电导率复合传感器。分别在NaCl电导率溶液、含水土样和混合土样中进行标定试验分析,结果证实了复合传感器的可行性。通过分析混合土样中含水量和电导率与传感器输出信号之间的相关性,分别建立土壤含水量与电导率的统计预测模型。曾庆猛 马道坤 林剑辉 Schulze Lammers P 孙宇瑞 2010农业机械学报2010,41,9:7
6Combined carriership of TLR9 -1237C and CD14 -260T alleles enhances the risk of developing chronic relapsing pouchitis显示文摘AIM: To investigate the single nucleotide polymorphisms (SNPs) in genes involved in bacterial recognition and the susceptibility to pouchitis or pouchitis severity.METHODS: Analyses of CD14 -260C>T, CARD15/NOD2 3020insC, Toll-like receptor (TLR)4 +896A>G,TLR9 -1237T>C, TLR9+ 2848G>A, and IRAKM +22148G>A SNPs were performed in 157 ileal-pouch anal anastomosis (IPAA) patients (79 patients who did not develop pouchitis, 43 infrequent pouchitis patients,35 chronic relapsing pouchitis patients) and 224 Italian Caucasian healthy controls.RESULTS: No significant differences were found in SNP frequencies between controls and IPAA patients.However, a significant difference in carriership frequency of the TLR9-1237C allele was found between the infrequent pouchitis and chronic relapsing pouchitis groups [P = 0.028, odd's ratio (OR) = 3.2, 95%CI = 1.2-8.6].This allele uniquely represented a 4-locus TLR9 haplotype comprising both studied TLR9 SNPs in Caucasians.Carrier trait analysis revealed an enhanced combined carriership of the alleles TLR9 -1237C and CD14 -260T in the chronic relapsing pouchitis and infrequent pouchitis group (P = 0.018, OR = 4.1, 95%CI = 1.4 -12.3).CONCLUSION: There is no evidence that the SNPs predispose to the need for IPAA surgery. The significant increase of the combined carriership of the CD14 -260T and TLR9 -1237C alleles in the chronic relapsing pouchitis group suggests that these markers identify a subgroup of IPAA patients with a risk of developing chronic or refractory pouchitis.KM Lammers S Ouburg SA Morré JBA Crusius P Gionchetti F Rizzello C Morselli E Caramelli R Conte G Poggioli M Campieri AS Pea 2005World Journal of Gastroenterology2005,11,46:7
7An osmotic stress protein of cyanobacteria is immunologically related to plant dehydrins 显示文摘Close T J Lammers P J 1993Plant Physiol1993,101,3:2
8The fibronectin binding proteins of Staphylococcus aureus are required for adhesion to and invasion of bovine mammary gland cells显示文摘 Nuijter P J Smith H E 1999FEMS Microbiology Lettres1999,180,1:1
9Lattice BGK direct numerical simulation of fully developed turbulence in incompressible plane channel flow 显示文摘Lammers P Beronov K Volkert R 2006Computers and Fluids2006,35,10:1
10The use of fibrillation eyele length to determine spatial dispersion in electrophysiological properties and to characterize the underlying mechanism of fibrillation显示文摘Lammers W J E P Allessie M A llensma P L el al 1986New Trends in Arrhythmias1986,2,1:1
11Evaluation of a carrier control valve for a direct nozzle injection system显示文摘J Vondricka P S Lammers 0,,:1
12hnmunomodulatory effects of probiotic bacteria DNA: IL-1 and IL-10 response in human peripheral blood mononuclear cells 显示文摘Lammers KM Brigidi P Vitali B 2003FEMS Immunol Med Mierobiol2003,38,2:1
13Evaluation of a combined penetrometer for simultaneous measurement of penetration resistance and soil water content显示文摘Sun Yurui Schulze Lammers P Ma Daokung 2004Journal of Plant Nutrition and Soil Science2004,167,6:1
14Improvement of a dual-sensor horizontal penetrometer by incorporating an EC sensor显示文摘Zeng Q Sun Y Lammers P S 2008Computers and Electronics in Agriculture2008,64,2:1
15On-the-go measurement of soil water content and mechanical resistance by a combined horizontal penetrometer显示文摘Sun Yurui Ma Daokung Schulze Lammers P 2006Soil and Tillage Research2006,86,2:1
16Dual Principles in Frame Theory显示文摘CASAZZA P G KUTYNIOK G LAMMER M C 2004J Fourier Anal Appl2004,10,:1
17The effects of accelerated growth rates and estrogen implants in prepubertal Holstein heifers on estimates of mammary development and subsequent reproduction and milk production 显示文摘Lammers B P Heinrichs A J Kensinger R S 1999J Dairy Sci1999,82,:1
18A muscarinic agonist inhibits reflex bronchoconstriction in normal but not in asthmatic subjects 显示文摘Minette P A Lammers J W 1989J Appl Physiol1989,67,6:1
19Modeling of complex premixed burner systems by using flamelet-generated manifolds 显示文摘VAN OIJEN J A LAMMERS F A DE GOEY I P H 2001Combustion and Flame2001,127,:1
20On-the-go measurement of soil water content and mechanical resistance by a combined horizontal penetrometer显示文摘SUN Y MA D SCHULZE LAMMERS P 2006Soil&Tillage Research2006,86,:1
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