scholarly journals A Fast Spatial Pool Learning Algorithm of Hierarchical Temporal Memory Based on Minicolumn’s Self-Nomination

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Lei Li ◽  
Tingting Zou ◽  
Tao Cai ◽  
Dejiao Niu ◽  
Yuquan Zhu
Keyword(s):  
Carrying Capacity ◽  
Artificial Neural Network Model ◽  
Learning Algorithm ◽  
Load Carrying Capacity ◽  
Temporal Memory ◽  
Training Time ◽  
Hierarchical Temporal Memory ◽  
Load Carrying ◽  
New Type ◽  
Time Overhead

As a new type of artificial neural network model, HTM has become the focus of current research and application. The sparse distributed representation is the basis of the HTM model, but the existing spatial pool learning algorithms have high training time overhead and may cause the spatial pool to become unstable. To overcome these disadvantages, we propose a fast spatial pool learning algorithm of HTM based on minicolumn’s nomination, where the minicolumns are selected according to the load-carrying capacity and the synapses are adjusted using compressed encoding. We have implemented the prototype of the algorithm and carried out experiments on three datasets. It is verified that the training time overhead of the proposed algorithm is almost unaffected by the encoding length, and the spatial pool becomes stable after fewer iterations of training. Moreover, the training of the new input does not affect the already trained results.

Evaluation of Load Carrying Capacity of the Perforated Shear Connector with Flange Heads

2006 ◽  
Vol 326-328 ◽  
pp. 1811-1816 ◽  
Author(s):  
Young Ho Kim ◽  
Jae Ho Jung ◽  
Soon Jong Yoon ◽  
Won Sup Jang
Keyword(s):  
Carrying Capacity ◽  
Load Transfer ◽  
Shear Capacity ◽  
Load Carrying Capacity ◽  
Shear Connector ◽  
Shear Connectors ◽  
Load Carrying ◽  
Bridge Structures ◽  
Composite Bridge ◽  
New Type

In the construction of composite bridge structures, various types of shear connectors are usually used to provide an efficient load transfer and the composite action of two or more different materials. In the previous work conducted by authors, a new type of the shear connector was introduced, which is the perforated shear connector with flange heads (T-shaped perforated shear connector), and the structural behavior of the shear connector was discussed based on the results of push-out tests. For the practical design of new shear connector, it is necessary to develop the equation for the prediction of the load carrying capacity of the shear connector. In this study, the existing design equations for the Perfobond shear connector were briefly analyzed and the equation for the prediction of the shear capacity of T-shaped perforated shear connector was suggested empirically. By comparing the results obtained by the suggested equation, the existing equations for the Perfobond shear connector, and the experiment, the applicability and effectiveness of the suggested equation was estimated.

Application on H-Beam with Trapezoidally Corrugated Webs

2011 ◽  
Vol 94-96 ◽  
pp. 342-349
Author(s):  
Wen Long Shi ◽  
Xuan Liu
Keyword(s):  
Carrying Capacity ◽  
Design Principles ◽  
Paper Analysis ◽  
Load Carrying Capacity ◽  
Main Design ◽  
Component Design ◽  
Corrugated Webs ◽  
Load Carrying ◽  
New Type ◽  
H Beam

The H-beam with corrugated webs is a new type of H-beam, whose webs are produced by substituting corrugated webs for flat webs. In this paper, analysis was conducted to study main design principles for H-beam with corrugated webs used in a project, including component design and joints design. Compared with H-beams, the products have superior load-carrying capacity and more favorable economic advantages.

Load Carrying Capacity of Hybrid FRP-Concrete Composite Pile

2011 ◽  
Vol 250-253 ◽  
pp. 1165-1172 ◽  
Author(s):  
Joon Seok Park ◽  
Seong Sik Lee ◽  
Jeong Hun Nam ◽  
In Kyu Kang ◽  
Dong Jun An ◽  
...  
Keyword(s):  
Carrying Capacity ◽  
Filament Winding ◽  
Transverse Load ◽  
Load Carrying Capacity ◽  
Concrete Pile ◽  
Load Carrying ◽  
Theoretical Investigations ◽  
Composite Pile ◽  
New Type ◽  
Frp Tube

In the study, in order to enhance the durability and constructability of the pile foundation, hybrid FRP-concrete composite pile is developed and its applicability considering construction is discussed. Existing FRP-concrete composite pile is consisted of concrete pile and filament winding FRP wound outside of the pile. To improve the axial and transverse load carrying capacities longitudinal reinforcement is also needed additionally, and hence a new type hybrid FRP-concrete composite pile (HCFFT) is suggested. A new type HCFFT which is composed of pultruded FRP, filament winding FRP, and concrete filled inside of the FRP tube is proposed to improve compressive strength as well as flexural strength of the HCFFT pile. The load carrying capacity of proposed HCFFT pile is evaluated and discussed based on the result of experimental and theoretical investigations.

Performance Study of Aerostatic Bearings with Arrayed Microhole Restrictors

2011 ◽  
Vol 311-313 ◽  
pp. 386-391
Author(s):  
Peng Li ◽  
Han Chen ◽  
Xue Dong Chen
Keyword(s):  
Carrying Capacity ◽  
Load Carrying Capacity ◽  
Aerostatic Bearing ◽  
Performance Study ◽  
Load Carrying ◽  
Ultra Precision ◽  
New Type ◽  
Computational Fluid Dynamics Cfd ◽  
Aerostatic Bearings ◽  
Micro Vibration

Micro-vibration of aerostatic bearings has been the bottleneck in the improvement of the moving and positioning accuracy of ultra-precision fabrication and metrology equipments. In this study, a new type of aerostatic bearing restrictor has been proposed. The prototype of arrayed microhole restrictor, instead of the conventional single hole restrictor was developed with the aim of reducing the harmful micro-vibration of aerostatic bearings. Computational fluid dynamics (CFD) was employed to numerically calculate the air flow field. It is found that the employment of arrayed microhole restrictors can reduce the amount of micro-vibration while maintain the load carrying capacity and stiffness of the aerostatic bearing. Experimental measurement of the micro-vibration confirms the effectiveness of this new type of restrictor.

A New Type of Cast In Situ Reinforced Concrete Biaxial Hollow Slab with Property of Thermal Insulation

2011 ◽  
Vol 368-373 ◽  
pp. 448-451
Author(s):  
Wei Hong Xuan ◽  
Yong Wan ◽  
Yu Zhi Chen ◽  
Pan Xiu Wang
Keyword(s):  
Reinforced Concrete ◽  
Carrying Capacity ◽  
Fundamental Principle ◽  
Light Weight ◽  
Load Carrying Capacity ◽  
Construction Technology ◽  
Thermal Insulating ◽  
Load Carrying ◽  
New Type

The construction technology and fundamental principle of a new kind of cast-in-situ reinforced concrete biaxial hollow slab with property of thermal-insulating is proposed in this paper. Compared with ordinary floor, the biaxial hollow slab is well load-carrying capacity in two-direction, light weight and thermal -insulating property.

Load-carrying capacity of a new type of lattice tubular column

2017 ◽  
pp. 585-590
Author(s):  
L.W. Tong ◽  
H.Z. Zheng ◽  
Y. Chen ◽  
Z.Y. Shen ◽  
Y.J. Chen
Keyword(s):  
Carrying Capacity ◽  
Load Carrying Capacity ◽  
Load Carrying ◽  
New Type

Performance Analysis of the Flotation Cushion with Elastic Pressure Equalizing Groove for Aerostatic Slideway

2012 ◽  
Vol 152-154 ◽  
pp. 743-748 ◽  
Author(s):  
Jun An Zhang ◽  
Hao Dong ◽  
Fang Jie Ma ◽  
Bo Liu
Keyword(s):  
Performance Analysis ◽  
Theoretical Analysis ◽  
Governing Equation ◽  
Elastic Plate ◽  
Carrying Capacity ◽  
Load Carrying Capacity ◽  
Load Carrying ◽  
Variable Section ◽  
New Type ◽  
Coupling Calculation

In order to improve stiffness of the flotation cushion, a new type of flotation cushion with variable-section pressure equalizing groove of elastic plate for aerostatic slideway was designed. Gas film pressure distribution and load carrying capacity of this flotation cushion was studied through theoretical analysis. The grid was generated by taking advantage of overlapping stitching technique. By using the coupling calculation of the gas lubrication governing equation and elastic deformation of thin plate governing equation, the load carrying capacity and stiffness of the new flotation cushion were obtained. Some experiments were made to verify the result of theoretical calculation. The experimental results show that the stiffness of new flotation cushion is much higher than conventional flotation cushion.This new flotation cushion has a wider application space.

Seismic Performance of RC Shear Walls with Concealed Bracing

2003 ◽  
Vol 6 (1) ◽  
pp. 1-13 ◽  
Author(s):  
W. L. Cao ◽  
S. D. Xue ◽  
J. W. Zhang
Keyword(s):  
Seismic Performance ◽  
Carrying Capacity ◽  
Shear Walls ◽  
Shear Wall ◽  
Hysteretic Behavior ◽  
Load Carrying Capacity ◽  
Building Structures ◽  
Load Carrying ◽  
New Type ◽  
Rc Shear Wall

Reinforced concrete shear walls play an important role in improving seismic performance of building structures. In this paper, a new type of RC shear wall with concealed bracing is proposed and investigated. Four 1:3 scale medium-height specimens were designed and a detailed experimental investigation carried out. The load-carrying capacity, stiffness, ductility, hysteretic behavior and energy dissipation of the shear wall are discussed. The failure mechanism was revealed by the experiments. It is found that in comparison with a normal shear wall, the seismic performance of a shear wall can be significantly improved by adding concealed bracing within the wall panel. Finally, a mechanical model of the shear wall is proposed and formulae for calculating load-carrying capacity developed. It is shown that the theoretical results agree well with those from experiments.

BOUNDARY SLIPPAGE FOR IMPROVING THE LOAD AND FRICTION PERFORMANCE OF A STEP BEARING

2010 ◽  
Vol 34 (3-4) ◽  
pp. 373-387 ◽  
Author(s):  
Yongbin Zhang
Keyword(s):  
Friction Coefficient ◽  
Carrying Capacity ◽  
Maximum Load ◽  
Load Carrying Capacity ◽  
Interfacial Condition ◽  
Design Guideline ◽  
Boundary Slippage ◽  
Load Carrying ◽  
New Type ◽  
Friction Performance

The present paper proposes a new type of step bearing by specifically modifying the interfacial condition between the fluid film and the bearing surface and introducing the boundary slippage at those interfaces. Analysis for the load-carrying capacity and friction coefficient is presented for this kind of bearing. The comparison of the obtained analytical results with the conventional (no-slippage) step bearing results shows that modifying the interfacial condition and introducing the boundary slippage at the specific bearing surfaces can significantly increase the load-carrying capacity and reduce the friction coefficient of a step bearing. Design guideline, the load-carrying capacity and the friction coefficient are also presented for this bearing at optimum condition which reaches the maximum load-carrying capacity.

Parameter Analysis on Ultimate Load-Carrying Capacity of CFST Arch Rib with New-Type Dumbbell-Shaped Section

2013 ◽  
Vol 634-638 ◽  
pp. 3825-3829
Author(s):  
Ye Sheng
Keyword(s):  
Carrying Capacity ◽  
Ultimate Load ◽  
Slenderness Ratio ◽  
Research Work ◽  
Parameter Analysis ◽  
Load Carrying Capacity ◽  
Load Carrying ◽  
New Type ◽  
Ultimate Load Carrying Capacity ◽  
Shaped Section

Experiments on concrete filled steel tubular (CFST) model arches with new-type dumbbell-shaped section have been carried out, concentrated loading at crown and L/4 section respectively. Applied with large general program ANSYS, a finite element calculation model was set up for the model arch, by means of this model the main parameters including arch axis coefficient, ratio of rise to span, slenderness ratio, and steel ratio are analyzed. Based on the discussion of influence of parameter variation on nonlinear characteristics and ultimate load-carrying capacity of model arch, the theoretical basis is established for the development of this structure and the conclusion can be taken as reference in practice use and further research work.

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