نتایج جستجو برای: harvesting machine

تعداد نتایج: 290943  

2012
Naoshi Kondo

Studies on harvesting robots with manipulator were started with the tomato fruit harvesting robot since 30 years ago by Prof. Kawamura, Kyoto University [1]. The robot consisted of a 5 DOF manipulator, a harvesting end-effector, a color TV camera which was used for stereo vision, and a battery car for traveling in the ridges as shown in Figure 1. Following the harvesting robot, the robotic tech...

2009
Leonas Valkunas Ivo H.M. van Stokkum Rudi Berera Rienk van Grondelle

When exposed to excess light illumination photosynthetic organisms switch into a photoprotective quenched state where the excess energy is safely dissipated as heat. When these processes are investigated by means of ultrafast spectroscopy, the experimentalist is faced with the unnatural process of singlet–singlet annihilation which often makes the interpretation of the results very complicated....

Journal: :Biophysical journal 2012
Tjaart P J Krüger Cristian Ilioaia Matthew P Johnson Alexander V Ruban Emmanouil Papagiannakis Peter Horton Rienk van Grondelle

The light-harvesting antenna of photosystem II (PSII) has the ability to switch rapidly between a state of efficient light use and one in which excess excitation energy is harmlessly dissipated as heat, a process known as qE. We investigated the single-molecule fluorescence intermittency of the main component of the PSII antenna (LHCII) under conditions that mimic efficient use of light or qE, ...

Journal: :Biophysical journal 2010
Tjaart P J Krüger Vladimir I Novoderezhkin Cristian Ilioaia Rienk van Grondelle

Single-molecule spectroscopy was employed to elucidate the fluorescence spectral heterogeneity and dynamics of individual, immobilized trimeric complexes of the main light-harvesting complex of plants in solution near room temperature. Rapid reversible spectral shifts between various emitting states, each of which was quasi-stable for seconds to tens of seconds, were observed for a fraction of ...

2001
Thomas Wehner

The application of different modern logging systems depends on the silvicultural aims and methodologies. Depending upon these specifications the appropriate technique must be selected. This is the basic condition, which leads to a specific logging system in Central European and especially in German forestry. In the following an overview is to be given upon the different applications of full-mec...

Journal: :Land 2022

In ground-based harvesting, machine traffic can cause soil physical disturbances including excessive compaction, the displacement of surface and topsoil, rutting. These impacts indirectly hamper seedling survival tree growth because reduced permeability root growth. However, extent disturbance in mechanized row thinning by harvester forwarder systems South Korea is unclear. Therefore, our objec...

Afshin Azmoodeh-Mishamandani, Hossein Navid Mohammad Moghaddam Vahed Shamsollah Abdollahpoor

The main purpose of this study is measuring and comparing of peanut harvesting loss in manual and mechanical methods in addition to economic analysis of them. Hence, a field was selected in Astaneh-Ashrafiyeh and divided to three different plots. Two plots were applied to measure mechanical harvesting loss and third one was applied for manual harvesting loss. According to test results, the lowe...

2007
Jihong Yuan Kunhui Liu

We study the problem on optimal harvesting from a population in a stochastic crowded environment with harvesting cost. In this problem, the size of the population satisfy the stochastic logistic differential equation, which serves as a model for population growth in a stochastic environment with finite carrying capacity when harvesting is exercised. We consider the following problem: What harve...

Journal: :journal of industrial strategic management 0
kimia ahmadzadeh bachelor of engineering, university of science, and technology fatemeh karami graduate student in industrial engineering, university of science and technology kamran shhanqy assistant professor, faculty member, university of science and technology

selecting an appropriate manufacturing machine is a very important and complex problem for firms, which usually have to deal with both qualitative and quantitative criteria. taking into account the differences among machines in terms of cost, speed, quality and after sale services, type and number of machines are important parameters to consider. therefore, the goal of this paper is to propose ...

Journal: :Nature chemistry 2012
Gabriela S Schlau-Cohen Akihito Ishizaki Tessa R Calhoun Naomi S Ginsberg Matteo Ballottari Roberto Bassi Graham R Fleming

Photosynthetic organisms harvest sunlight with near unity quantum efficiency. The complexity of the electronic structure and energy transfer pathways within networks of photosynthetic pigment-protein complexes often obscures the mechanisms behind the efficient light-absorption-to-charge conversion process. Recent experiments, particularly using two-dimensional spectroscopy, have detected long-l...

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