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486篇 您的检索式:作者名="Fortin R"
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1收获沙棘振动器试验研究显示文摘该项研究的核心是研制振动器,通过振动果枝的方式来收获沙棘果实。2003到2004年间,基于我们的试验研究结果显示,沙棘品种'印度夏季'通过用频率为40Hz,振幅为15mm,10s为一振动周期的果枝振动器可有效获得果实。利用这个参数的振动可以有效获得90%的果实,且对果枝的损害很小,从果枝上下来的叶片、芽及木枝的碎片也很少。在2003年进行了最原始的研究,2004年测试发现这种方法存在一定缺陷。发电机利用机轴进行来回的旋转运动,利用这个原理进行各种振幅试验,但这对果树各部分会产生大量的压力。用1.5kW的电机可以在车间及没有农业机械的土地上进行试验,但这个过程需要人工看护。最原始的方法效率不高且过程复杂。2005年进行了设备的改进,通过凸轮产生的振动来驱动液压马达。尽管这种方法使用时间还很短,但是它的振动功能还是非常显著的。如果选在最佳采摘季节收获果实,收获的果实品质最佳,同时对果树的伤害也是最小的。如果在每个季节采摘500株或是更少果树的果实,这种振动收获果实的方法是一种最佳选择。梁月 殷丽强 Roger Chagnon Jérme Boutin Sylvain Fortin 2009国际沙棘研究与开发2009,7,4:3
2Operative treatment in 120 displaced intraarticular calcaneal fracture,results using aprognostic to mography scarl classification显示文摘Sanders R Fortin P Dispaqule T 1993Clin Orthop1993,290,:1
3A cross-sectional study comparing the Oswestry and Roland-Morris functional disability scales in two populations of patients with low back pain of different levels of severity显示文摘 Blier F Fortin L 1997Spine1997,22,:1
4Operative treatment in 120 displaced intraarticular calcaneal fractures显示文摘 Fortin P 1993Clin Orthop1993,290,:1
5Resolution numerique des equations de Navier-Stokes pour un fluide visqueux incompressible显示文摘Fortin M Peyret R Temam R 1971J Mech1971,10,3:1
6Operative treatment in 120 displaced intraarticular calcaneal fractures: results using a prognostic computed tomography scan classification 显示文摘Sanders R Fortin P DiPasquale T 1993Clin Orthop Relat Res1993,,290:1
7β2 adrenergic re ceptor variants affect resting blood pressure and agonist-induced vasodilation in young adult caucasians显示文摘 Fortin J Labugger R 1999Hypertension1999,33,:1
8Operative treat of 120 dl plac intra-articular calaneal fractures:Results using a postic computed tomography scan classification显示文摘 Fortin P Dipasquale T 1993Clin Orthop1993,290,:1
9Operative treatment in 120 displaced intra-articular calcaneal fractures results using a prognostic computed tomography scan classifieation显示文摘Sanders R Fortin P Dispasqale T etal 1993Clin Orthop1993,,290:1
10Operative treatment in 120 displaced intraarticular calcaneal fractures:Results using a prosnostic tomography scan classification显示文摘Sanders R Fortin P Dipasquale T 1993Cline Orthop1993,290,:1
11Operative treatment in 120 displaced intraarticular calcaneal fractures:Results using a prognostic computed tomography scan chlassification显示文摘Sanders R Fortin P Dipasquale 1993Clin Orthop1993,290,1:1
12Determination of the drainage structure of a watershed using a digital elevation model and a digital river and lake network显示文摘Turcotte R Fortin J P Rousseau A N 2001Journal of Hydrology2001,240,34:1
13Operative treatment in 120 displaced intraarticular calcaneal fractures:results using a prognostic computed tomography scan classification 显示文摘Sanders R Fortin P Dipasquale T 1993Clin Orthop Relat Res1993,290,5:1
14Assessment and comparison of intraoperative and postoperative pain associated with NovaSure and Therma choice endometrial ablation systems 显示文摘Laberge PY Sabbah R Fortin C 2003J Am Assoc Gynecol Laparosc2003,10,2:1
15Results using a prognostic computed tomography scan classification 显示文摘Sanders R Fortin P DiPasquale T Operative treatment in 120 displaced intraarticular calcaneal fractures 1993Clin Orthop Relat Res1993,,290:1
16Determination of the drainage structure of a watershed using a digital elevation model and a digital river and lake network 显示文摘Turcotte R Fortin J P Rousseau A N 2001Journal of Hydrology2001,240,34:1
17Should tetracycline treatment be used more extensively for rheumatoid arthritis? Metaanalysis demonstrates clinical benefit with reduction in disease activity显示文摘Stone M Fortin P R Pacheco -Tena C 2003J Rheumatol2003,30,10:1
18Operative treatment in 120 displaced intraarticular calcaneal fracture: Results using aprognostic tomography scan classification 显示文摘Sanders R Fortin P Dipasquale T 1993Clin Orthop1993,290,:1
19Operative treatment in 120 displaced intraaticular calcaneal fracture:results using a prognostic computed tomography scan classification显示文摘Sander R Fortin P Dispasquale T 1993Clin Orthop1993,,290:1
20Operative treatment in 120 displaced intraarticular calcaneal fractures results using aprognostic tomography scan classification 显示文摘sanders R Fortin P Dipasquale T 1993Clin Orphop1993,290,:1
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