Some Enlightenment about Application of Seismic Interpretations on the Close Spacing District

2016 ◽  
Author(s):  
Cao Li ◽  
Jian Peng ◽  
Yingbin Yang ◽  
Chunsheng Yang ◽  
Mingzhu Zhao
Keyword(s):  
Close Spacing

MODELING OF MULTIPLE VAPORIZING DROPLET STREAMS IN CLOSE SPACING CONFIGURATIONS

1997 ◽  
Vol 7 (3) ◽  
pp. 267-294 ◽  
Author(s):  
Jun Xin ◽  
Constantine M. Megaridis
Keyword(s):  
Close Spacing

scholarly journals Afforestation of Former Farmland with High-value Hardwoods

1991 ◽  
Vol 67 (3) ◽  
pp. 209-212 ◽  
Author(s):  
F. W. von Althen
Keyword(s):  
Early Years ◽  
Intensive Management ◽  
High Quality ◽  
Close Spacing ◽  
Hardwood Species ◽  
Competition Control ◽  
Stem Development ◽  
Gradual Release ◽  
Poor Drainage

For satisfactory growth, most high-value hardwood species demand a deep, fertile, moist but well drained soil. Intensive competition control during the early years after planting is a necessity. Close spacing is recommended, with gradual release of crop trees to promote high-quality stem development. For good hardwood growth on soils of marginal fertility or poor drainage or on sites where intensive management cannot be guaranteed, it is recommended that a mixture of several hardwood species be planted.

Distant Interpersonal Spacing and Psychological Distance

1980 ◽  
Vol 46 (3_suppl) ◽  
pp. 1299-1303 ◽  
Author(s):  
J. Guthrie Ford ◽  
Sara Hoebeke
Keyword(s):  
Personal Space ◽  
Psychological Distance ◽  
Cognitive Distance ◽  
Actual Distance ◽  
Close Spacing ◽  
Social Spacing ◽  
Distance Model ◽  
Experiential State

A recent line of research in the personal space area addresses the subject's experiential state of social spacing. One such study has reported that under close spacing, subjects experience the distance as significantly closer than the actual distance. This paper investigated the phenomenology of distant spacing. Females were moved beyond their preferred distance to another person and their judgments of the distant spacing were measured. Such a condition led to a significant overestimation of the actual personal space. The deductive base for this research was sensory-tonic theory, and the results were discussed within a cognitive-distance model of interpersonal spacing.

PIV Analysis on the Effect of Stator Loading on Transonic Blade-Row Interactions

2010 ◽  
Author(s):  
Scott B. Reynolds ◽  
Steven E. Gorrell ◽  
Jordi Estevadeordal
Keyword(s):  
Vortex Shedding ◽  
Bow Shock ◽  
Trailing Edge ◽  
Shock Interactions ◽  
Transonic Compressor ◽  
Close Spacing ◽  
Topological Features ◽  
Blade Row ◽  
Vortex Size ◽  
Increased Strength

Experiments have been performed to investigate interactions between a loaded stator and transonic rotor. The Blade Row Interaction (BRI) rig is used to simulate an embedded transonic fan stage with realistic geometry (thin trailing edge) which produces a wake through diffusion. Details of the unsteady flow field between the stator and rotor were obtained using PIV. Flow-visualization images and PIV data that facilitate analysis of vortex shedding, wake motion, and wake-shock-interaction phenomena are presented. Stator wake and rotor-bow-shock interactions are analyzed for three stator/rotor axial spacings, and two stator loadings. Specific shed vortices and wake topological features are isolated for each configuration. The data analysis focuses on measuring the vortex size, strength, and location as it forms on the stator trailing edge and propagates downstream into the rotor passage. It was observed that vortex shedding is synchronized to the passing of a rotor bow shock. Results show that the circulation of a vortex increased by 19 to 23% from far to close spacing due to the increased strength of the rotor bow shock impacting the stator trailing edge. Reduction in stator loading decreased shed vortex circulation for the same stator/rotor axial spacing by 20 to 25%. Pitchwise radius of vortices also decreased by 13 to 19% from far to close spacing. Such changes in vortex size and strength should be accounted for to predict the effect of unsteady blade-row interactions on transonic compressor performance.

Particle Image Velocimetry Analysis on the Effect of Stator Loading on Transonic Blade-Row Interactions

2012 ◽  
Vol 134 (6) ◽  
Author(s):  
Scott B. Reynolds ◽  
Steven E. Gorrell ◽  
Jordi Estevadeordal
Keyword(s):  
Vortex Shedding ◽  
Bow Shock ◽  
Trailing Edge ◽  
Shock Interactions ◽  
Transonic Compressor ◽  
Close Spacing ◽  
Topological Features ◽  
Blade Row ◽  
Vortex Size ◽  
Increased Strength

Experiments were performed to investigate interactions between a loaded stator and transonic rotor. The blade row interaction (BRI) rig was used to simulate an embedded transonic fan stage with realistic geometry (thin trailing edge), which produces a wake through diffusion. Details of the unsteady flow field between the stator and rotor were obtained using PIV. Flow-visualization images and PIV data that facilitate analysis of vortex shedding, wake motion, and wake-shock-interaction phenomena are presented. Stator wake and rotor-bow-shock interactions were analyzed for three stator/rotor axial spacings and two stator loadings. Specific shed vortices and wake topological features were isolated for each configuration. The data analysis focuses on measuring the vortex size, strength, and location as it forms on the stator trailing edge and propagates downstream into the rotor passage. It was observed that vortex shedding is synchronized to the passing of a rotor bow shock. Results show that the circulation of a vortex increased by 19% to 23% from far to close spacing due to the increased strength of the rotor bow shock impacting the stator trailing edge. Reduction in stator loading decreased shed vortex circulation for the same stator/rotor axial spacing by 20% to 25%. Pitchwise radius of vortices also decreased by 13% to 19% from far to close spacing. Such changes in vortex size and strength should be accounted for to predict the effect of unsteady blade-row interactions on transonic compressor performance.

The impact of close spacing on yield of arabica coffee under contrasting agro-ecologies of Ethiopia

2001 ◽  
Vol 9 (2) ◽  
Author(s):  
Taye Kufa ◽  
Tesfaye Shimber ◽  
Alemsged Yilma ◽  
Anteneh Netsere ◽  
Endale Taye ◽  
...  
Keyword(s):  
Arabica Coffee ◽  
Close Spacing ◽  
The Impact

Yield of two yam (Dioscorea alata) cultivars with three planting dates and two planting systems.

1969 ◽  
Vol 77 (3-4) ◽  
pp. 161-166
Author(s):  
Héber Irizarry ◽  
Edmundo Rivera
Keyword(s):  
Planting Date ◽  
Tuber Size ◽  
Dioscorea Alata ◽  
Production Potential ◽  
Planting Dates ◽  
Close Spacing ◽  
Planting System

The production potential of yams cv. Binugas and Gunung was determined by using three planting dates and two planting systems. The yams were planted in March, May and July 1990 on raised and flat rows without vine support at the close spacing of .91 by .30 m. Regardless of planting date and planting system, these cultivars performed similarly with respect to marketable and premium weights, tuber size and non-marketable weight. Planting system has no significant effect on cultivar performance. The best planting date was March, with a marketable production of 70,590 kg/ha. About 88.2% or 62,254 kg/ha was highly graded tubers. The delay in planting from March to July significantly reduced yields by 44.8%.

scholarly journals Fluctuating Fluid Forces of Two Circular Cylinders in Tandem Arrangement at Close Spacing.

2002 ◽  
Vol 68 (669) ◽  
pp. 1400-1406 ◽  
Author(s):  
Masaru MORIYA ◽  
Mahbub ALAM ◽  
Kazunori TAKAI ◽  
Hiroshi SAKAMOTO
Keyword(s):  
Circular Cylinders ◽  
Tandem Arrangement ◽  
Fluid Forces ◽  
Close Spacing

scholarly journals Low frequency of transgene flow from Bt/CpTI rice to its nontransgenic counterparts planted at close spacing

2005 ◽  
Vol 168 (3) ◽  
pp. 559-566 ◽  
Author(s):  
Jun Rong ◽  
Zhiping Song ◽  
Jun Su ◽  
Hui Xia ◽  
Bao-Rong Lu ◽  
...  
Keyword(s):  
Low Frequency ◽  
Close Spacing ◽  
Transgene Flow
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