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  • 1
    Online Resource
    Online Resource
    Unmanned Aerial Systems in Precision Agriculture : Technological Progresses and Applications (2022)
    Singapore :Springer Nature Singapore :
    Details
    Keywords: Agriculture. ; Agronomy. ; Signal processing. ; Machine learning. ; Robotics. ; Botany. ; Agriculture. ; Agronomy. ; Signal, Speech and Image Processing . ; Machine Learning. ; Robotic Engineering. ; Plant Science.
    Description / Table of Contents: Applications of UAVs and machine learning in agriculture -- Robot Operating System Powered Data Acquisition for Unmanned Aircraft Systems in Digital Agriculture -- Unmanned aerial vehicle (UAV) applications in cotton production -- Time effect after initial wheat lodging on plot lodging ratio detection using UAV imagery and deep learning -- UAV mission height effects on wheat lodging ratio detection -- Wheat-Net: An Automatic Dense Wheat Spike Segmentation Method Based on An Optimized Hybrid Task Cascade Model -- UAV multispectral remote sensing for yellow rust mapping: opportunities and challenges -- Corn Goss's Wilt disease assessment based on UAV imagery.
    Abstract: This book, consisting of 8 chapters, describes the state-of-the-art technological progress and applications of unmanned aerial vehicles (UAVs) in precision agriculture. It focuses on the UAV application in agriculture, such as crop disease detection, mid-season yield estimation, crop nutrient status, and high-throughput phenotyping. Different from individual papers focusing on a specific application, this book provides a holistic view for readers with a wide range of subjects. In addition to researchers in the areas of plant science, plant pathology, breeding, engineering, it is also intended for undergraduates and graduates who are interested in imaging processing, artificial intelligence in agriculture, precision agriculture, agricultural automation, and robotics.
    Type of Medium: Online Resource
    Pages: V, 136 p. 68 illus., 60 illus. in color. , online resource.
    Edition: 1st ed. 2022.
    ISBN: 9789811920271
    Series Statement: Smart Agriculture, 2
    URL: https://doi.org/10.1007/978-981-19-2027-1
    DOI: 10.1007/978-981-19-2027-1
    DDC: 630
    Language: English
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  • 2
    Electronic Resource
    Electronic Resource
    Methylamine metabolism and its role in nitrogenase “Switch off” in Rhodopseudomonas capsulata (1983)
    Springer
    Archives of microbiology 134 (1983), S. 45-48 
    Details
    ISSN: 1432-072X
    Keywords: Nitrogenase ; Methylamine ; Nitrogenase switch-off ; Rhodopseudomonas capsulata
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract In the photosynthetic bacterium Rhodopseudomonas capsulata, NH 4 + switch-off of nitrogenase activity can be mimicked by its analog, methylamine. Like NH 4 + , methylamine appeared to require processing by glutamine synthetase (GS) before it was effective; γ-glutamylmethylamide was shown to be the product of this reaction. Evidence that this glutamine analog functioned directly to initiate nitrogenase inactivation was suggested first by the fact that it was a poor substrate for glutamate synthase (i.e., it was not further metabolized by this pathway) and secondly, azaserine which blocks the transfer of the glutamine amide group had no effect on CH3NH 3 + (or NH 4 + ) switch-off. These observations are taken as preliminary evidence to suggest that when NH 4 + inhibits nitrogenase activity, inactivation is initiated by glutamine itself, and not a molecule derived from it. Finally, evidence was presented that R. capsulata would use CH3NH 3 + as a nitrogen substrate, but lag periods and generation times increased with subsequent passages.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00429405
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  • 3
    Electronic Resource
    Electronic Resource
    Probe-Type Microforce Sensor for Mirco/Nano Experimental Mechanics (2008)
    s.l. ; Stafa-Zurich, Switzerland
    Advanced materials research Vol. 33-37 (Mar. 2008), p. 943-948 
    Details
    ISSN: 1662-8985
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: In recent years with the development of MEMS and NEMS, various micro and nano scaleexperiments are required. In general, the smaller the sample, the smaller the force is in themeasurement. But it is difficult to load and measure such small force. We developed a probe-typeloading and force sensor system to measure micro/nano samples. The system employs asemiconductor strain gauge of a cantilever type sensor and a micro manipulator. A highly sensitive,stable sensing cantilever beam made of single crystal silicon is ion implanted to form the P-typeresistor (strain sensor). A tungsten probe with 100 nm radius of curvature was attached to the end ofthe cantilever as the micro loading tip. We constructed the measurement system and investigated itsproperties, such as linearity, dynamic response and stability. We also employed microspeckleinterferometry to calibrate the force sensor. In preliminary experiments, we successfully obtained theforce resolution 0.7 μN and applied our probe-type microforce sensor to calibrate an atomic forcemicroscope (AFM) probe beam and test a single silkworm filament
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.33-37.943.pdf
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  • 4
    Electronic Resource
    Electronic Resource
    Effect of Deformation Temperature and Strain on Recrystallization Behavior of a Nb Micro-Alloyed Steel (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 544-545 (May 2007), p. 47-50 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The post-dynamic softening of Nb micro-alloyed steel and plain carbon steel wasinvestigated through stress relaxation method. Meanwhile, By comparison with C-Mn steel, theeffect of deformation temperature and strain on post dynamic recrystallization of Nb steel wasstudied . The result shows that element Nb in solution state can dramatically improve the apparentactivation energy of static recrystallization. At lower temperature, the recrystallization can beretarded and precipitation of Nb(C, N) occured. If strain is more than the critical strain of dynamicrecrystallization, the metadynamic recrystallization takes place. If fully metadynamicrecrystallization takes place, the kinetics is no longer dependent on strain of the kind of steels
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/15/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.544-545.47.pdf
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  • 5
    Electronic Resource
    Electronic Resource
    Stochastic modeling of devolatilization-induced coal fragmentation during fluidized-bed combustion (1994)
    s.l. : American Chemical Society
    Industrial & engineering chemistry research 33 (1994), S. 137-145 
    Details
    ISSN: 1520-5045
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ie00025a018
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  • 6
    Electronic Resource
    Electronic Resource
    Numerical study of conductance distribution in granular metal films (2000)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 87 (2000), S. 1584-1586 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We study the shape of distribution F(G) for the conductance G between a point on the surface of a metal–insulator nanocomposite film and the conducting substrate. Random resistor networks with both metallic and tunneling bonds included are used to model nanocomposite films. Our simulation results show explicitly that the shape of F(G) is determined mainly by the connectivity of metal particles and the maximum tunneling distance in the composite. By applying our results to the available experimental data on granular NiFe–SiO2, we find important implications for the understanding of microscopic conduction mechanisms near the metal–insulator transition. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.372057
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  • 7
    Electronic Resource
    Electronic Resource
    Large sonic band gaps in 12-fold quasicrystals (2002)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 91 (2002), S. 6191-6193 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The sonic band-gap structures of 12-fold symmetry quasicrystals consisting of rigid cylinders in air are investigated by using the multiple scattering method. Large full gaps are found in this system owing to its high symmetry. At filling fractions between 0.2 and 0.4, this 12-fold square–triangle tiling is much better for the realization of sonic band gaps than the square or triangular lattice. This makes the 12-fold quasicrystal a promising structure for acoustic-wave band-gap materials. © 2002 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1465114
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  • 8
    Electronic Resource
    Electronic Resource
    Engineering acoustic band gaps (2001)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 79 (2001), S. 3224-3226 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: By using a perturbative approach, we propose a simple, systematic, and efficient method to engineer acoustic band gaps. A gap can be enlarged or reduced by altering the microstructure according to the field-energy distributions of the Bloch states at the band edges as well as their derivatives. Due to the structure of the acoustic wave equation, the engineering of acoustic band gaps is much more efficient than that of photonic band gaps. The validity of the proposed method is supported by multiple-scattering calculations. Our method makes the acoustic band gap "designable." © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1415410
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  • 9
    Electronic Resource
    Electronic Resource
    Application and Study of Some Crack Detection Methods in Offshore Platforms (2004)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 274-276 (Oct. 2004), p. 907-912 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/48/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.274-276.907.pdf
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  • 10
    Electronic Resource
    Electronic Resource
    Thermal Deformation Analysis of Copper Microbridges with Speckle Interferometry and Finite Element (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 353-358 (Sept. 2007), p. 2871-2874 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: In this paper, a speckle microinterferometric system was employed to study the thermaldeformation of the Cu microbridges with different dimensions. The deflections of the microbridgescaused by the thermal loading were measured with real-time by the speckle microinterferometricsystem and the surface temperatures of the bridges were recorded using a digital thermometer. Thedeformation evaluation after microbridges buckling was also recorded with our testing system. Then,the experimental results were compared with the finite element analysis (FEA)
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/55/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.353-358.2871.pdf
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