中国科学院机构知识库网格系统: 检索

Integrated analysis of potential microbial consortia, soil nutritional status, and agro-climatic datasets to modulate P nutrient uptake and yield effectiveness of wheat under climate change resilience 期刊论文 OAI收割
FRONTIERS IN PLANT SCIENCE, 2023, 卷号: 13, 页码: 14
作者: Yahya, Mahreen; Rasul, Maria; Hussain, Sayed Zajif; Dilawar, Adil

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收藏 | 浏览/下载：31/0 | 提交时间：2023/02/27

soil-specific consortia rhizoscanning soil organic matter root architecture climatic conditions fluorescence in situ hybridization field emission scanning electron microscopy

Contribution of soil fauna respiration to CO2 flux in subtropical Moso bamboo (Phyllostachys pubescens) forests: a comparison of different soil treatment methods 期刊论文 OAI收割
ENVIRONMENTAL EARTH SCIENCES, 2016, 卷号: 75, 期号: 13, 页码: DOI: 10.1007/s12665-016-5528-2
作者: Jiang, Yan; Wang, Bing; Niu, Xiang; Dong, Zhixin; Wang, Peng

收藏 | 浏览/下载：34/0 | 提交时间：2016/09/05

Soil fauna Soil fauna respiration Electric steel bars Naphthalene In field conditions

Modelling of the electric field assisted capillarity effect used for the fabrication of hollow polymer microstructures (EI CONFERENCE) 会议论文 OAI收割
2012 13th International Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems, EuroSimE 2012, April 16, 2012 - April 18, 2012, Cascais, Portugal
Tonry C.; Patel M.; Bailey C.; Desmuliez M. P. Y.; Cargill S.; Yu W.

收藏 | 浏览/下载：101/0 | 提交时间：2013/03/25

Electric Field Assisted Capillarity (EFAC) is a novel process which has the potential for the single step fabrication of hollow polymer microstructures. The process has been shown to work experimentally on a microscale level using Polydimethylsiloxane (PDMS). The process makes use of both the electrohydrodynamics of polymer at a microscale and the voltage enhanced capillary force exerted on the polymer. This paper discusses the results of a two-dimensional numerical simulation of this process. The results presented use a patterned master electrode producing encapsulated microchannels in the polymer. The simulations demonstrate how the differing contact angles between the polymer and the walls of the master electrode affect the thickness of the top surface of the formed microstructures. It also specifies the conditions necessary for the successful fabrication of such microstructures. 2012 IEEE.

Study of horizontal shafting with spherical four-way structure (EI CONFERENCE) 会议论文 OAI收割
2012 International Conference on Optoelectronics and Microelectronics, ICOM 2012, August 23, 2012 - August 25, 2012, Changchun, China
作者: Yang L.; Yang L.

收藏 | 浏览/下载：37/0 | 提交时间：2013/03/25

Altazimuth photoelectric theodolite level shaft U-type and T-type structure but with the expanding field of applications of photoelectric theodolite the horizontal shaft structure occur great changes. For example in the marine environment shipboard conditions the instrument has a waterproof corrosion-resistant easy maintenance and other functions while carrier-based optoelectronic devices from a single visible television configure the development of integrated infrared system and ranging system as one of the single-station measurement system due to the spherical structure has sufficient internal space exactly adapted to this need. In this paper the horizontal axis of a spherical four-way structure. From aspects of the spherical four-way split in the form and shafting design and finite element analysis of the detailed design. A spherical four-way horizontal axis system diameter 550mm weight 19kg sphere in the 40kg load the maximum deformation of 3.3m fully meet the requirements. The shaft of the structure of the shaking is less than 2 arc seconds the vibration test the re-examination instrument accuracy change is less than 1 arc seconds. Verify that the structure is stable and reliable. 2012 IEEE.

Research on the effect of clamp on rudder lift-drag characteristics (EI CONFERENCE) 会议论文 OAI收割
2nd Annual Conference on Electrical and Control Engineering, ICECE 2011, September 16, 2011 - September 18, 2011, Yichang, China
Zhang N.; Yang C.; Jia H.

收藏 | 浏览/下载：32/0 | 提交时间：2013/03/25

The paper introduce structured grid division use CFD numerical simulation and FLUNET software to conduct the simulation calculation for flow field of high-speed vehicle which study the clamps of high-speed vehicle control helms how to affect the lift-drag characteristics of it. To better illustrate the problem we use the canard configuration vehicle that efficiency of control is higher. This paper calculate lift-drag characteristics of outer surface of canard helm that with or without clamps in the condition of subsonic transonic and supersonic then compare the lift-drag characteristics of in different conditions and analyze from the perspective of flow field. 2011 IEEE.

Mechanism of STED microscopy and analysis of the factors affecting resolution (EI CONFERENCE) 会议论文 OAI收割
6th International Symposium on Precision Engineering Measurements and Instrumentation, August 8, 2010 - August 11, 2010, Hangzhou, China
Yang P.; Ai H.

收藏 | 浏览/下载：31/0 | 提交时间：2013/03/25

Stimulated emission depletion (STED) microscopy exploits nonlinear saturable optical transition of fluorescent molecules allowed to overcome Abbe's diffraction-limit and provides diffraction-unlimited resolution in far-field optical microscopy. We elaborate the mechanism of STED and the conditions of depletion. The formula of STED microcopy resolution is deduced through effective point spread function (E-PSF). The STED system resolution is mainly dominated by the quality of the fluorescence depletion patterns in the focal plane. The depletion pattern is mainly affected by STED beam intensity polarization phase plate primary aberrations STED pulse shape pulse duration and delay time. In this paper we found related models and simulate the relationship between the depletion patterns and the parameters and put forward effective approach to enhance the system resolution. 2010 SPIE.

Equivalent lenses of supersonic seeker's outflow refractive index field obtained by simulation and experiment (EI CONFERENCE) 会议论文 OAI收割
2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments, November 16, 2008 - November 19, 2008, Beijing, China
Qun W.; Hongguang J.; Ming X.

收藏 | 浏览/下载：32/0 | 提交时间：2013/03/25

In order to decrease the aerodynamic drag of supersonic image guide missile and design a non-spherical dome the outflow field of the missile's dome is simulated using FLUENT. Based on the simulated results the accurate density field of the outflow field at all kinds of flight conditions is obtained and then the refractive index field of the outflow field is gotten according to the Gladstone-Dale law. The results show that the shock wave induces the heterogeneity of the refractive index field and the turbulent causes distortion. The outflow field is divided into several zones which are taken as equivalent lenses for aberration analysis. 2009 SPIE.

355nm增透膜的设计、制备与性能 期刊论文 OAI收割
中国激光, 2008, 卷号: 35, 期号: 12, 页码: 2026, 2030
余华; 崔云; 申雁鸣; 齐红基; 易葵; 邵建达; 范正修

收藏 | 浏览/下载：1650/259 | 提交时间：2009/09/22

薄膜增透膜热舟蒸发真空退火激光损伤阈值 355 nm lasers Damage morphologies Electric-field In vacuums Laser damage resistances Laser induce damage threshold Masking technologies Spectrum stabilities Substrate interfaces Surface conditions Thermal boat evaporation Vacuum annealing

A new algorithm of image segmentation for overlapping grain image (EI CONFERENCE) 会议论文 OAI收割
ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China
作者: Zhang X.; Zhang X.; Zhang X.

收藏 | 浏览/下载：23/0 | 提交时间：2013/03/25

Image segmentation is primary issue in image processing at the same time it is principal problem in low level vision in computer vision field. It is the key technology to process image analysis image comprehend and image depict successfully. Aim at measurement of granularity size of nonmetal grain a new algorithm of image segmentation and parameters calculation for overlapping grain image is studied. The hypostasis of this algorithm is present some new attributes of graph sequence from discrete attribute of graph consequently achieve that pick up the geometrical characteristics from input graph and new graph sequence which in favor of image segmentation is recombined. The conception that image edge denoted with "twin-point" is put forward base on geometrical characters of point image edge is transformed into serial edge and on recombined serial image edge based on direction vector definition of line and some additional restricted conditions the segmentation twin-points are searched with thus image segmentation is accomplished. Serial image edge is transformed into twin-point pattern to realize calculation of area and granularity size of nonmetal grain. The inkling and uncertainty on selection of structure element which base on mathematical morphology are avoided in this algorithm and image segmentation and parameters calculation are realized without changing grain's self statistical characters.

Time-evolution of a trapped Bose-Einstein condensation in a quantum cavity (EI CONFERENCE) 会议论文 OAI收割
ICO20: Lasers and Laser Technologies, August 21, 2005 - August 26, 2005, Changchun, China
作者: Wang C.; Zhang L.; Zhang L.

收藏 | 浏览/下载：19/0 | 提交时间：2013/03/25

The dynamics in the Bose-Einstein Condensation(BEC) process with interaction between two energy-level Bose atoms and single-mode active cavity field in the quantum cavity is analyzed using the ordinary method suggested by the authors for solving the wave function in the Schrodinger ideal from the Heisenberg idea. A wave function has been established for the atoms under the BEC conditions in the quantum cavity. Then the stability factor determining the BEC and the selection rules of the quantum transition can be solved.