نتایج جستجو برای: crop response and principal component analysis

تعداد نتایج: 17445434  

Journal: :future of medical education journal 0
masoumeh nazari chamak student research assembly, kerman university of medical science, kerman, iran khodadad sheikhzadeh regional knowledge hub and who collaborating centre for hiv surveillance, institute for futures studies in health, kerman university of medical sciences, kerman, iran ali akbar haghdoost regional knowledge hub for hiv/aids surveillance, research centre for modelling in health, institute for future studies in health, kerman university of medical sciences, kerman, iran

background: in order to check the practicality of classification of universities of medical sciences (umss) based on their infrastructures, and scientific contributions, this study explored the most appropriate indicators to measure the size and productivity of umss. methods: in the first phase, we approached a group of experts who had a deep experience in the management of umss and in the mini...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده مدیریت 1392

data envelopment analysis (dea) is a powerful tool for measuring relative efficiency of organizational units referred to as decision making units (dmus). in most cases dmus have network structures with internal linking activities. traditional dea models, however, consider dmus as black boxes with no regard to their linking activities and therefore do not provide decision makers with the reasons...

2003
Anna Hagenblad Fredrik Gustafsson Inger Klein

This paper reviews and compares two methods for fault detection and isolation in a stochastic setting, assuming additive faults on input and output signals and stochastic unmeasurable disturbances. The first method is the parity space approach, analyzed in a stochastic setting. This leads to Kalman filter like residual generators, but with a FIR filter rather than an IIR filter as for the Kalma...

A. K. Wadhwani Manish Dubey, Monika Saraswat

The principle of dimensionality reduction with PCA is the representation of the dataset ‘X’in terms of eigenvectors ei ∈ RN  of its covariance matrix. The eigenvectors oriented in the direction with the maximum variance of X in RN carry the most      relevant information of X. These eigenvectors are called principal components [8]. Ass...

Journal: :Animal : an international journal of animal bioscience 2014
R Ripoll-Bosch M Joy A Bernués

Traditional mixed livestock cereal- and pasture-based sheep farming systems in Europe are threatened by intensification and specialisation processes. However, the intensification process does not always yield improved economic results or efficiency. This study involved a group of farmers that raised an autochthonous sheep breed (Ojinegra de Teruel) in an unfavourable area of North-East Spain. T...

2017
José B. Malaquias Francisco S. Ramalho Carlos T. dos S. Dias Bruno P. Brugger Aline Cristina S. Lira Carlos F. Wilcken Jéssica K. S. Pachú José C. Zanuncio

The relationship between pests and natural enemies using multivariate analysis on cotton in different spacing has not been documented yet. Using multivariate approaches is possible to optimize strategies to control Aphis gossypii at different crop spacings because the possibility of a better use of the aphid sampling strategies as well as the conservation and release of its natural enemies. The...

Journal: :journal of agricultural science and technology 2015
s. chatterjee r. goswami p. bandopadhyay

targeted extension for heterogeneous farming systems is a challenge in developing countries. farm type identification and characterization based on estimates of income from different farm components allows simplifying diversity in farming systems. use of multivariate statistical techniques, such as principal component analysis (pca) and cluster analysis (ca), help in such farm typology delineat...

Journal: :journal of artificial intelligence in electrical engineering 2016
saeede jabbarzadeh reyhani saeed meshgini

classical lbp such as complexity and high dimensions of feature vectors that make it necessary to apply dimension reduction processes. in this paper, we introduce an improved lbp algorithm to solve these problems that utilizes fast pca algorithm for reduction of vector dimensions of extracted features. in other words, proffer method (fast pca+lbp) is an improved lbp algorithm that is extracted ...

Journal: :iranian journal of environmental sciences 0
debbrota mallick institute of marine sciences and fisheries, university of chittagong, chittagong 4331, bangladesh md. islam institute of marine sciences and fisheries, university of chittagong, chittagong 4331, bangladesh avijit talukder institute of marine sciences and fisheries, university of chittagong, chittagong 4331, bangladesh shamindra mondal institute of marine sciences and fisheries, university of chittagong, chittagong 4331, bangladesh md. al-imran institute of marine sciences and fisheries, university of chittagong, chittagong 4331, bangladesh satchidananda biswas shushilan, khulna, bangladesh

the karnafully is one of the most important rivers due to its profound influence on water chemistry and sediment characteristics. the present study intended to assess the quality of water and sediment from intertidal zone of this river in respect to the pollution index. seasonal water and sediment samples were collected during four seasons (monsoon, post-monsoon, winter, and pre-monsoon) of 201...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید