搜索结果: 1-11 共查到“农学 vector”相关记录11条 . 查询时间(0.281 秒)
Comparison of partial least squares-discriminant analysis, support vector machines and deep neural networks for spectrometric classification of seed vigour in a broad range of tree species
least squares-discriminant analysis spectrometric classification seed tree species
2023/6/5
Wild boar (Sus scrofa) as a possible vector of mycobacterial infections: review of literature and critical analysis of data from Central Europe between 1983 to 2001
veterinary epidemiology risk assessment wild boar
2015/1/28
Infected animals in the wild, which can act as a reservoir and/or vector for the origin of bovine tuberculosis, are a great problem for national programmes seeking to free herds of cattle from the inf...
Effect of exchange rate on dried apricot export in Turkey: A vector autoregression (VAR) analysis
Dried apricot exchange rate export VAR
2011/1/12
Volatilities, which occur in exchange rates, cause variability in revenues also obtained from export. This study aimed to explore the relationship between variability in exchange rate and export value...
Weed/corn seedling recognition by support vector machine using texture features
Corn seedling weeds texture support vector machine recognize
2010/9/10
This study investigated the effect of a new approach, the support vector machine, as a classifier tool to identify the weeds in corn fields at early growth stage. Image segmentation was done by transf...
Transmission Mechanism of the Pinewood Nematode, Bursaphelenchus xylophilus:How Does the Nematode Transfer to and Depart from Its Insect Vector?
Bursaphelenchus xylophilus Monochamus alternatus pine wilt disease transmission mechanism vector beetle
2009/8/28
The pinewood nematode, Bursaphelenchus xylophilus, is the causative agent of pine wilt disease (PWD), and is transmitted among host trees by cerambycid beetles in the genus Monochamus. In Japan, its p...
选取郑单958、辽单565、京科25玉米品种作为研究对象,从玉米籽粒的数字图像中提取与玉米籽粒的颜色、形状、尺寸等有关的6个形态结构参数,利用支持向量机(SVM)算法进行训练识别,同时与BP人工神经网络(NN)方法进行比较,结果表明,SVM算法识别效率较高,达到92.3%。
Eggshell crack detection by acoustic impulse response and support vector machine
Eggshell crack detection acoustic impulse response frequency feature support vector machine
2009/3/4
This paper investigates the effect of support vector machine (SVM) for the classification of intact and cracked eggs. The four frequency features of the sound impulse resonance of an egg excited wit...
STUDIES ON THE OCCURRENCE OF GRAM-NEGATIVE BACTERIA IN TICKS:IXODES RICINUS AS A POTENTIAL VECTOR OF PASTEURELLA
ticks Ixodes ricinus transmission Gram-negative bacteria
2010/12/24
A total of 372 Ixodes ricinus ticks (101 females, 122 males, and 149 nymphs) collected by flagging in 6 mixed woodlands of eastern Poland were examined by culture for the presence of internal Gram-neg...
STUDIES ON THE OCCURRENCE OF GRAM-NEGATIVE BACTERIA IN TICKS:IXODES RICINUS AS A POTENTIAL VECTOR OF PASTEURELLA
ticks Ixodes ricinus transmission Gram-negative bacteria
2010/12/24
A total of 372 Ixodes ricinus ticks (101 females, 122 males, and 149 nymphs) collected by flagging in 6 mixed woodlands of eastern Poland were examined by culture for the presence of internal Gram-neg...
IXODES RICINUS AS A VECTOR OF BORRELIA BURGDORFERI SENSU LATO, ANAPLASMA PHAGOCYTOPHILUM AND BABESIA MICROTI IN URBAN AND SUBURBAN FORESTS
Anaplasma phagocytophilum Babesia microti
2010/12/24
In the suburban and urban forests in the cities of Gda駍k, Sopot and Gdynia (northern Poland), Ixodes ricinus ticks should be considered as the vector of pathogenic microorganisms that may cause signif...
IXODES RICINUS AS A POTENTIAL VECTOR OF TOXOPLASMA GONDII
Toxoplasma gondii, toxoplasmosis, epidemiology,
2010/12/24
The presence of Toxoplasma gondii DNA was detected by polymerase chain reaction (PCR) test in 2 out of 92 Ixodes ricinus ticks (2.8%) collected in the woodlands of eastern Poland. This suggests that t...