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  • 1
    Online Resource
    Online Resource
    Zurich :Trans Tech Publications, Limited,
    Keywords: Electronic books.
    Description / Table of Contents: Selected, peer reviewed papers from the 2014 17th Conference of Hydrodynamic and Electromechanical Control Engineering, July 27-29, 2014, Lhasa City, Tibet.
    Type of Medium: Online Resource
    Pages: 1 online resource (282 pages)
    Edition: 1st ed.
    ISBN: 9783038268949
    Series Statement: Applied Mechanics and Materials Series ; v.Volume 779
    Language: English
    Note: Intro -- 17th Hydrodynamic Electromechanical Control Engineering -- Preface and Committees -- Table of Contents -- Chapter 1: Hydraulic, Mechanical and Electromechanical Systems Components, Materials Processing -- Power Loss of Slipper within Axial Piston Pump -- Performance Analysis of Double Nozzle Flapper Servo Valve Based on Liquid-Solid Couple Effect and Moving Grid Approach -- Wear Testing of Principal Friction Pairs in Axial Piston Pump Based on Taguchi Design Method -- Design and Simulation Analysis of the Multi-Stage Linear Synchronous Expanding and Contracting Hydraulic Cylinder -- Flow Field Simulation and Experimental Research on the Triangle Groove Cone Throttle Valve -- Fluid-Solid Coupling Heat Analysis of Aerostatic Guide Components -- Analysis of the Cavitation in the Jet Flow Field of the V-Type Valve Orifice -- The Simulation and Analysis on Leakage Flow Rate of Plunger Pair of Plunger Water Hydraulic Motor -- Research on the Ideal Cushion Method of Pneumatic Cylinder -- Mechanical Property Analysis on Cutting Tool of the Ice and Snow Removing Machine Based on ANSYS -- The Experimental Analysis of Rotation Speed and Medium Filling Rate on Grinding Performance to a Horizontal Stirred Mill -- The Machine Design and Parameter Analysis of the Bar Bending which Based on the ADAMS -- Discussion on Structural Design of O-Ring Seal Used in Aviation 28MPa Hydraulic System -- Comparative Studies of Contact Strain between O-Ring and the Sealing Groove under Normal Condition and Failure Mode -- The Simulation Model of Rotation Speed and Media Loading on Grinding Performance of a Horizontal Stirred Mill -- Chapter 2: Flow Machinery and Engineering -- Analysis of Surge Curve of a Sintered Exhauster Based on Site Tests -- Research on Ram Air Turbine Blade Properties. , Numerical Simulation of the Laminar Flow Field in Stirred Tank with Double Layer Combined Impeller Stirring Eccentrically -- Performance Analysis of Centrifugal Compressor under Different Operation Conditions -- The Formation Mechanism and Simulation of Micro Bubble in Multi-Phases Flow in Mesoscopic Scale -- Fault Analysis of a Dust-Removing Blower in a Sintering Plant Based on Envelope Analysis -- ADAMS Simulation Analysis for Stripping Unit of Sponge Copper Automatic -- Study of Stirrer Disc Structure Type on Grinding Performance of a Horizontal Stirred Mill -- Chapter 3: Hydraulic Systems, Servosystems and Transmission, Driving Systems -- Distributed Monitoring and Intelligent Fault Diagnosis System for Large-Scale Electro-Hydraulic Devices -- The Modeling and Simulation of Hydraulic Actuated Control System of Helicopter in Volumetric Speed Control -- A Research on Dual Hydraulic Motor Synchronizing Driving System with Pressure Coupling -- Integration Design and Simulation of Hydraulic Actuated Control System of Helicopter -- Research on Hydraulic Free Piston Engine with High Scavenging Efficiency -- Research on Operating Parameters Matching and Efficiency Optimization for Hydraulic System Based on AMESim -- Chapter 4: Advanced Control Research and Application -- Distributed Embedded Control Architecture of a Leader-Follower Mobile Robot Formation -- Performance Comparison of Displacement and Speed Control in Electro-Hydrostatic Actuator -- Research on Fuzzy Control of MR (Magneto-Rheological) Damper for Landing Gear Based on FuzzyTECH -- Position and Speed Double Closed Loop Control Performance of Electro-Hydraulic Actuator System Research Based on AMESim -- Application of BP Neural Network PID Controller in Landing Gear Based on MRF Damper -- Research and Simulation of Fuzzy PID Controller. , Simulation of LQR Controller on Magnetorheological Landing Gear -- Design of a Pneumatic Flow Rate Control Microvalve Driven by a Stepper-Motor -- Design and Simulation for Electro-Hydraulic Proportional Tension Control System -- Chapter 5: Industry Application -- A PV Module Surface Dust Removal Device Simulation -- Fuel System Configuration and Restructuring of MALE and HALE UAV -- Keywords Index -- Authors Index.
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  • 2
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 83 (1998), S. 7934-7939 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The strong photoluminescence (PL) of SiOx:H prepared by plasma enhanced chemical vapor deposition has been systematically studied in conjunction with infrared and micro-Raman spectra. We have found that each PL spectrum is comprised of two Gaussian components, a main band and a shoulder. The main band might originate from amorphous silicon clusters embedded in the SiOx network, and its redshift with annealing temperature is due to expansion of the silicon clusters. The shoulder remains at about 835 nm in spite of the annealing temperature and possibly comes from luminescent defect centers. The enhanced PL spectra after 1170 °C annealing are attributed to the quantum confinement effects of nanocrystalline silicon embedded in the SiO2 matrix. © 1998 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Munksgaard International Publishers
    Physiologia plantarum 118 (2003), S. 0 
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: During photosynthesis, photoinactivation and repair of photosystem II (PSII) occur simultaneously, resulting in a net loss of functional PSII under a given irradiance. This study determines the rate coefficients for the partial processes, allowing the calculation of the partial rates at any concentration of functional/non-functional PSII. The rate coefficient of photoinactivation was obtained from the onset of photoinactivation of PSII in leaf segments of Capsicum annuum L. in the absence of repair, and was in turn used to obtain the rate coefficient (kr) of repair of PSII when repair was occurring. The value of kr was found to be near maximum at an irradiance as low as 29 µmol photons m−2 s−1 and peaked at or somewhat above the growth irradiance; however, it declined on further increasing the irradiance, possibly due to oxidative stress. The value of kr was considerably decreased by elevating the CO2 to about 1%, particularly at low irradiance, probably due to acidification of the stroma to a pH outside the range that is optimal for protein synthesis. The method of determining kr is convenient to apply, not relying on radiolabelling and pulse-chase experiments.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Oxford, UK; Malden, USA : Munksgaard International Publishers
    Physiologia plantarum 121 (2004), S. 0 
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Responses of virus-infected (VI) and virus-eradicated (VE) Oncidium Gower Ramsey orchid plants grown under 30% of prevailing solar radiation and those transferred from 30 to 60% and 100% of prevailing solar radiation were studied under natural tropical conditions. Plants grown under 30% of prevailing solar radiation suffered lower leaf and floral production and reduced photosynthesis. When the irradiance was increased to 60% of prevailing solar radiation, enhancement of leaf and floral production and photosynthetic capacities were achieved. However, when the plants were transferred from 30 to 100% of prevailing solar radiation, the growth and photosynthetic capacities of the plants were significantly reduced. All plants exhibited a midday depression in photosynthetic CO2 assimilation (A), stomatal conductance (gs) and Fv/Fm ratio. The degree of midday depression of these parameters was not only associated with high temperatures and high irradiances but also with virus infection. Midday Fv/Fm ratio depression indicated that dynamic photo-inhibition occurred in all plants grown under all three light conditions. However, chronic photo-inhibition, measured by pre-dawn Fv/Fm ratio and chlorophyll content, occurred only in those plants transferred from 30 to 100% of prevailing solar radiation. Hence, it is concluded that the VI Oncidium Gower Ramsey was more susceptible to high irradiance than the VE plants.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1573-7373
    Keywords: meningioma ; chromosome 1 ; p18 ; CDKN2C
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract After chromosome 22 and NF2 inactivation, the loss of chromosome 1p is one of the most frequent abnormalities encountered in meningiomas. However the putative tumor suppressor gene located on 1p inactivated in meningiomas has still to be identified. We screened 68 meningiomas for LOH on chromosome 22 and 1. We found 34 LOH on the NF2 region on chromosome 22 (50%) and 19 LOH on 1p (28%), 16 being associated with loss of chromosome 22. Partial deletions delimited a candidate region located between D1S234 and D1S2797. The p18 INK4C tumor suppressor gene, a member of the genes family coding for inhibitors of cyclin-dependent kinases, is located in this region. To determine whether p18 is involved in development of meningiomas, we performed a mutation analysis of the p18 gene and a search for homozygous deletion in the 19 meningiomas with 1p loss. Sequencing analysis of the p18 gene revealed one polymorphism, but no somatic mutations and no homozygous deletions were found. These results confirm that the loss of chromosome 1p32 is a frequent feature in meningiomas, however the p18 tumor suppressor gene which is located in this region, does not seem to be involved.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1572-9699
    Keywords: RNA polymerase II ; gene regulation ; transcription factors ; Fusarium solani
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract ThePDA1 promoter of the phytopathogenNectria haematococca MPVI (anamorphFusarium solani) offers a model for regulation of a fungal virulence gene in response to plant host-specific signals. Expression of thePDA1 gene, encoding pisatin demethylase, is induced in culture by pisatin, the isoflavanoid phytoalexin of pea. This pisatin induction is suppressed by nutritional factors. We have been studying the mechanism of pisatin induction through in vitro identification of regulatory factors and regulatory elements of thePDA1 promoter. We have developed an in vitro transcription system forN. haematococca which accurately initiates at thePDA1 promoter and reflects the pisatin induction ofPDA1 mRNA observed in vivo. This in vitro activity allowed a functional test of a limited set of 5' upstream deletions in thePDA1 promoter. In vitro binding studies have identified a DNA binding factor which is appears in mycelial extract after treatment of the mycelium with pisatin. This pisatin-responsive factor binds to a minimum size region of 35 bp approximately 500 bp upstream of the transcription initiation site. Tests using the in vitro transcription assay and in vivo competition both indicate a role for this binding region in the high expression ofPDA1 under pisatin-induced conditions. Southwestern blotting has identified one component of this binding activity to be a ∼35 kDa protein. The availability of these functional and structural tests of function, in conjunction with complementary in vivo tests, allow the detailed dissection of the signal pathway leading from exposure of the cell to pisatin towards the activation ofPDA1 transcription.
    Type of Medium: Electronic Resource
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  • 7
    Publication Date: 2013-07-02
    Description: Organic Letters DOI: 10.1021/ol4014415
    Print ISSN: 1523-7060
    Electronic ISSN: 1523-7052
    Topics: Chemistry and Pharmacology
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  • 8
    Publication Date: 2014-01-08
    Description: Journal of the American Chemical Society DOI: 10.1021/ja4129795
    Print ISSN: 0002-7863
    Electronic ISSN: 1520-5126
    Topics: Chemistry and Pharmacology
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  • 9
    Publication Date: 2013-12-20
    Description: Nature Protocols 9, 112 (2014). doi:10.1038/nprot.2013.173 Authors: Shi-Jie Yuan, Wen-Wei Li, Yuan-Yuan Cheng, Hui He, Jie-Jie Chen, Zhong-Hua Tong, Zhi-Qi Lin, Feng Zhang, Guo-Ping Sheng & Han-Qing Yu Electrochemically active bacteria (EAB) have the ability to transfer electrons to electron acceptors located outside the cell, and they are widely present in diverse environments. In spite of their important roles in geochemical cycles, environmental remediation and electricity generation, so far, only a limited number
    Print ISSN: 1754-2189
    Electronic ISSN: 1750-2799
    Topics: Natural Sciences in General
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  • 10
    Publication Date: 2015-09-22
    Description: The MIL-88A-Derived Fe〈sub〉3〈/sub〉O〈sub〉4〈/sub〉-Carbon Hierarchical Nanocomposites for Electrochemical Sensing Scientific Reports, Published online: 21 September 2015; doi:10.1038/srep14341
    Electronic ISSN: 2045-2322
    Topics: Natural Sciences in General
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