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| 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 | 基于电磁阀的喷嘴直接注入式农药喷洒系统显示文摘设计了一种喷嘴直接注入式农药喷洒系统。通过与传统喷雾机械比较,简述了喷嘴直接注入式喷雾系统的结构和喷雾执行单元。为了实现农药定量注入,设计一种基于电磁原理的快速响应阀,并论述其工作原理和闭环控制方式。通过试验测试了喷雾执行单元的喷雾特性和喷杆组内各喷雾单元的一致性。结果表明在一定喷洒速率范围内,喷雾执行单元的喷水量和水压强存在多项式关系,农药注入量和PWM信号的高电平时间存在指数关系,其决定系数均高于0.9,并且同一喷杆组内6个喷雾单元的喷雾效果大体一致。 | 蔡祥 Walgenbach Martin Doerpmund Malte Schulze Lammers Peter 孙宇瑞 | 2013 | 农业机械学报2013，44，6： | 13 |
| 3 | An Improved Frequency Domain Technique for Determining Soil Water Content显示文摘For many years a soil water content sensor with low cost, reliability and sufficient accuracy has been desirable. Thus, an improved measurement method based on the frequency domain (FD) principle for determining soil water content was considered. Unlike other measurement principles, a new measurable index, η, which was independent of the output impedance and the amplitude of the oscillator while relying on the electrical impedance of a multi-pin probe, was pro- posed. Moreover, a model for processing the impedance of the multi-pin soil probe was developed, and several important electrical parameters for establishing their operating ranges applicable to this probe were evaluated. In order to confirm the theoretical analysis, an experiment was conducted with a 4-pin probe. Using the developed model, the relationship between the proposed index η and soil volumetric water content was shown to be linear (R2 = 0.9921). Thus, as the measurable index, η seemed satisfactory. | SUN Yu-Rui MA Dao-Kun LIN Jian-Hui P. SCHULZE LAMMERS L. DAMEROW | 2005 | Pedosphere2005，15，6： | 13 |
| 4 | 基于土壤表面粗糙度预测降雨影响下的表层土壤孔隙度显示文摘根据表层土壤(0~40mm)孔隙度与降水量和土壤表面粗糙度之间的关系,提出一种预测表层土壤孔隙度的新方法。基于此目的,在德国波恩大学Dikopshof试验站,以两块采用不同耕作方式(地块1:铧式犁+圆盘耙;地块2:旋转锄+圆盘耙)处理过的耕地为研究对象,以耕后50d内的表层土壤孔隙度(TSP)与土壤表面粗糙度(SSR)为测量对象,分别采用地面激光扫描仪和气压比重计对TSP与SSR随时间的变化进行了连续测量,以研究TSP与SSR两者的动态关系。自2006到2009年,每年夏天进行1次重复试验,以研究不同降雨量对TSP与SSR关系的影响,并引入累计平均日降雨量(ARF)的影响指数。通过4a试验,得出结论:TSP随ARF增加而降低,随SSR降低而降低。在此基础上,建立了由ARF和SSR预测TSP的多元线性模型,且模型通过了F检验。结果表明,借助于地面激光扫描仪和降雨量数据,该模型可快速连续估算不同耕作方式下的土壤表层孔隙度。 | 陈世超 林剑辉 孙宇瑞 Peter Schulze Lammers | 2013 | 北京林业大学学报2013，35，2： | 13 |
| 5 | 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 |
| 6 | Antibiotics and probiotics in treatment of inflammatory bowel disease显示文摘许多试验性、临床的观察建议肠的微植物群在煽动性的肠疾病(IBD ) 的致病起一个潜在的作用。用抗菌素或职业人员生命学的钠内容的操作代表一种潜在地有效的治疗学的选择。可得到的研究不在 ulcerative (UC ) 支持抗菌素的使用。抗菌素在对待是有效的腐败 Crohn 的疾病(CD ) 的复杂并发症但是他们主要治疗是更争论的使用,尽管这条途径经常并且成功地在临床的实践被采用。有证据关於生命的治疗可以是的那个职业人员在预防和处理有效对中等 UC 温和。相反,成功的学习数据的缺乏目前预防在 CD 的处理的专业版生命学的普遍使用。抗菌素和职业人员生命学看起来在 pouchitis 的处理和预防起一个有益的作用,进一步的审判被保证充分确定他们的临床的功效。 | Paolo Gionchetti Fernando Rizzello Karen M Lammers Claudia Morselli Lucia Sollazzi Samuel Davies Rosy Tambasco Carlo Calabrese Massimo Campieri | 2006 | World Journal of Gastroenterology2006，12，21： | 12 |
| 7 | 土壤圆锥指数、水分与容重耦合模型的试验比较--Ⅰ.模型性能的统计检验与容重预测显示文摘应用一种先进的双变量(土壤圆锥指数与水分)传感器复合测量系统,基于前人提出的土壤圆锥指数、水分与容重的4种半经验模型(Ayers,Upadhyaya,Busscher与Hernanz模型),以相关系数R2与统计残差作为检验指标,根据各模型的结构特点,结合两种质地土壤(粘土与粉质壤土),针对容重预测精度与可应用性进行了深入试验研究.结果表明,Ayers和Upadhyaya模型虽然预测精度较高,但与土壤容重的解析关系为隐函数,在线辨识计算工作量只能取决迭代过程的收敛性,因而在实际应用上受到一定程度的限制.相比之下Busscher与Hernanz模型计算土壤容重方便快捷,但预测精度较低. | 林剑辉 孙宇瑞 曾庆猛 P. Schulze Lammers | 2008 | 应用基础与工程科学学报2008，16，6： | 9 |
| 8 | 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 |
| 9 | 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 |
| 10 | 不同粗糙度尺度下预测表层土壤孔隙率量化指数比较研究显示文摘针对当前精细农业对农田信息快速采集的需求,本研究提出了基于土壤粗糙度预测表层土壤孔隙率的方法,而采用何种量化指数表征土壤粗糙度是深化研究的关键.本文首先系统总结了几种已有的衡量土壤粗糙度的量化指数,进而提出一种新的基于小尺度的土壤粗糙度指数Rd.根据对4种不同耕作方式下应用地面激光扫描仪获取的原始试验数据进行初步处理,并将4种粗糙度量化指数与表层土壤孔隙率的相关性做了比较研究,得出了两个重要结论:(1)与其它粗糙度量化指数相比,Rd与表层土壤孔隙率的相关性最高(R2=0.752);(2)基于激光扫描方法快速分析表层土壤孔隙率具有潜在的应用价值. | 张慧娟 孙宇瑞 林剑辉 P. Schulze Lammers 王聪颖 | 2009 | 应用基础与工程科学学报2009，17，1： | 8 |
| 11 | 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 |
| 12 | 土壤圆锥指数、水分与容重耦合模型的试验比较研究--Ⅱ.水分与深度的影响显示文摘在对4种模型统计性能的水平检验与容重预测精度评价的基础上,分析与检验了各模型中水分与行进深度的影响作用.为分解水分对圆锥指数的单因数影响,采用定义水分影响指数(的方法.对于圆锥传感器行进深度的影响作用,借助于da与ead两种独立的深度影响因子,结合各模型与试验数据进行了计算与比较.结果表明:(1)只有Ayers模型能够较好地刻画土壤圆锥指数与水分间的耦合关系;(2)根据Ayers模型与Upadhyaya模型,圆锥传感器行进深度对圆锥指数的影响作用可以忽略;(3)根据Busscher模型,圆锥传感器行进深度显著影响圆锥指数的数值,但与此同时水分影响却可忽略不计,这显然与事实不符.由此看来,应用Ayers模型解析土壤圆锥指数、水分与容重的耦合关系,优于其它模型,但它作为隐函数,寻求最优迭代算法有待进一步研究. | 林剑辉 孙宇瑞 曾庆猛 P. Schulze Lammers | 2009 | 应用基础与工程科学学报2009，17，1： | 7 |
| 13 | 喷嘴直接注入式农药喷洒系统控制方法研究显示文摘为了实现农药变量喷洒,准确计量和控制农药的注入速率和注入量很有必要。提出了一种喷嘴直接注入式系统(DNIS)原型,并在此基础上研究了农药喷洒量的控制方法。该系统应用快速响应电磁阀(RRV)向水中注入农药,RRV由100 Hz的脉宽调制(PWM)信号驱动,通过改变PWM信号占空比调节农药注入速率。试验室环境下设计了基于比例-积分-微分(PID)算法的闭环控制策略,将农药注入速率快速稳定在设定值。通过试验测试了RRV、DNIS系统和PID控制器的工作性能。试验结果表明,采用RRV可准确计量农药注入速率,闭环控制策略可获得较稳定的农药速率控制效果,农药注入速率可在4 s内达到设定值,注入速率的稳定性相对于没有控制策略有明显提高。 | 蔡祥 Martin Walgenbach Mahe Doerpmund Peter Schulze Lammers 孙宇瑞 赵燕东 | 2016 | 农业机械学报2016，47，11： | 7 |
| 14 | Combined 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 Pea | 2005 | World Journal of Gastroenterology2005，11，46： | 7 |
| 15 | 基于智能手机方位传感器的叶面积测量校正显示文摘针对使用智能手机野外测量叶面积时很难保证主光轴与叶平面垂直导致测量精度下降的问题,采用针孔相机模型和数字图像处理技术相结合的方法,对叶片平面和手机平面存在夹角时的叶面积测量建立误差校正模型并进行研究。1)以10片不同大小的椭圆形模拟叶片对开发的android App进行仿真测试,结果显示,叶面积测量值与理论值之间的决策系数高于97%,并且随着叶片与手机平面夹角的增大而减小,校正后的相对误差为-6%~8%,未校正的高达41.4%。2)以向日葵、番茄、辣椒和茄子等植物叶片对误差校正公式进行验证,结果显示,当夹角<15°,拍照高度为30~65cm时,叶面积测量的相对误差为-6%~6%,未校正的为-27.5%~25%。 | 高大帅 林剑辉 余江斌 孙宇瑞 SCHULZE Lammers Peter | 2017 | 中国农业大学学报2017，22，6： | 7 |
| 16 | 基于水平尺度扩展的土壤水分介电传感技术显示文摘设计了一种水平放置管式结构的介电水分传感器测量系统,通过水平往复移动扫描,测量一定深度下水平剖面的土壤水分。水分传感器的测量原理为频域(FD)外缘场阻抗法,该系统实现了土壤水平剖面含水率的线扫描测量,其最大扫描长度为380 cm。为了检验该测量系统的技术性能与可应用性,结合农田滴灌试验给出了2个点源激励下土壤入渗的应用测试案例。试验结果显示了不同质地土壤的入渗差异并记录了点源激励下土壤入渗过程的时间、空间三维数据。 | 周海洋 孙宇瑞 P.Schulze Lammers 单桂林 程强 温渤婴 | 2015 | 农业机械学报2015，46，4： | 5 |
| 17 | 基于内边缘场电容效应的树干/枝水分传感器研究显示文摘茎秆水分与茎流速率是解析植物茎秆内水分传输的2个重要参数。设计了一种基于内边缘场电容效应的树干/枝水分传感器。采用有机溶液试剂法与枝条冻融法分别对传感器做了性能测试试验,证实了传感器在相对介电常数16.8-81变化范围内具有很好的线性关系(R2=0.977 2),并从冻融-干湿等价性能看,传感器反应灵敏度满足测量要求。利用枝条脱水法得到了传感器参考标定曲线,决定系数为0.992 2。温室环境下的盆栽苹果树试验证实了该传感器既可无损观测树干细胞昼夜间的充放水过程,还可感测亏水树干内膨压崩溃与恢复过程。 | 周海洋 孙宇瑞 PSchulze Lammers 单桂林 程强 温渤婴 | 2016 | 农业机械学报2016，47，1： | 4 |
| 18 | Identify Plant Drought Stress by 3D-Based Image显示文摘Plants respond to drought stress with different physical manners, such as morphology and color of leaves. Thus, plants can be considered as a sort of living-sensors for monitoring dynamic of soil water content or the stored water in plant body. Because of difficulty to identify the early wilting symptom of plants from the results in 2D (two-dimension) space, this paper presented a preliminary study with 3D (three-dimension)-based image, in which a laser scanner was used for achieving the morphological information of zucchini (Cucurbita pepo) leaves. Moreover, a leaf wilting index (DLWIF) was defined by fractal dimension. The experiment consisted of phase-1 for observing the temporal variation of DLWIF and phase-2 for the validation of this index. During the experiment, air temperature, luminous intensity, and volumetric soil water contents (VSWC) were simultaneously recorded over time. The results of both phases fitted the bisector (line: 1:1) with R2=0.903 and REMS=0.155. More significantly, the influence of VSWC with three levels (0.22, 0.30, and 0.36 cm3 cm-3) on the response of plant samples to drought stress was observed from separated traces of DLWIF. In brief, two conclusions have been made: (i) the laser scanner is an effective tool for the non-contact detection of morphological wilting of plants, and (ii) defined DLWIF can be a promising indicator for a category of plants like zucchini. | ZHAO Yan-dong SUN Yu-rui CAI Xiang LIU He Peter Schulze Lammers | 2012 | Journal of Integrative Agriculture2012，11，7： | 3 |
| 19 | Lactobacilli,bifi dobacteria and E.coli nissle induce pro-and anti-inflammatory cytokines in peripheral blood mononuclear cells显示文摘AIM: To investigate whether the stimulation of peripher- al blood mononuclear cells (PBMNC) with the cell debris and cell extraction of different probiotic strains is similar or species specifi c. METHODS: Three strains of bifi dobacteria, 4 strains of lactobacilli, and E. coli nissle were sonicated and centri- fuged in order to divide them into cell extract and cell debris. PBMNC were separated by density gradient and incubated for 36 h with either the cell debris or the cell extract of single strains of probiotic bacteria in doses from 102 to 108 CFU/mL. Cell supernatants were taken and interleukin (IL)-10, IL-1β, and tumor necosis factor (TNF)-α were determined by ELISA. RESULTS: Depending on the species super-family, the strains had different stimulation patterns. Except for both L. casei strains, the cell extract of bifidobacteriaand lactobacilli had less stimulating capacity than cell debris, whereas the cell extract of E. coli nissle had simi- lar stimulating properties to that of the cell debris of the strain and significantly more stimulating capacity than that of bifi dobacteria and lactobacilli. The cell debris of bifi dobacteria stimulated more cytokine release than the cell debris of lactobacilli. The cell debris of lactobacilli did not have a stimulating capacity when lower concentra- tions were used. Neither cell extraction nor cell debris had an inhibitory effect on the production of the tested cytokines by stimulated PBMNC. CONCLUSION: The incubation of probiotic strains, which have been used in clinical trials for inflammatory diseases, with immunocompetent cells leads to different species specifi c reactions. High IL-10 response to cell de- bris of bifi dobacteria and E. coli nissle can be found. This corresponds to positive effects of bifi dobacteria and E. coli nissle in clinical trials for inflammatory bowel disease compared to negative outcomes obtained with lactoba- cilli. | Ulf Helwig Karen M Lammers Fernando Rizzello Patricia Brigidi Verena Rohleder Elisabetta Caramelli Paolo Giochetti Juergen Schrezenmeir Ulrich R Foelsch Stefan Schreiber Massimo Campieri | 2006 | World Journal of Gastroenterology2006，12，37： | 3 |
| 20 | Effects of probiotic bacteria on gastrointestinal motility in guinea-pig isolated tissue显示文摘AIM: To evaluate the intestinal motility changes evoked by 8 bacterial strains belonging to Bifidobacterium , Lactobacillus and Streptococcus genera within the probiotic preparation VSL#3. METHODS: Ileum and proximal colon segments isolated from guinea-pigs were used as a study model. Entire cells and cell fractions (cell debris, cell wall fraction, cytoplasmatic fraction, proteinaceous and non- proteinaceous cytoplasmatic components) of VSL#3 strains and, as controls, Escherichia coli, Salmonella aboni and Bacillus licheniformis were tested in this in vitro model. RESULTS: Among the bacterial cell fractions tested, only the cytoplasmatic fraction modified intestinal motility. Lactobacillus strains stimulated the contraction of ileum segment, whereas all probiotic strains tested induced proximal colon relaxation response. The non-proteinaceous cytoplasmatic components were responsible for the colon relaxation. CONCLUSION: The results obtained in this study suggest that the proximal colon relaxation activity showed by the probiotic bacteria could be one of the possible mechanisms of action by which probiotics exert their positive effects in regulating intestinal motility. | Matteo Massi Pierfranco Ioan Roberta Budriesi Alberto Chiarini Beatrice Vitali Karen M Lammers Paolo Gionchetti Massimo Campieri Anthony Lembo Patrizia Brigidi | 2006 | World Journal of Gastroenterology2006，12，37： | 3 |
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