Analyses of pupils’ polygonal shape drawing strategy with respect to handwriting performance

2014 ◽  
Vol 18 (3) ◽  
pp. 571-586 ◽  
Author(s):  
Narges Tabatabaey-Mashadi ◽  
Rubita Sudirman ◽  
Richard M. Guest ◽  
Puspa Inayat Khalid
Keyword(s):  
Polygonal Shape ◽  
Drawing Strategy

The Romano-British Shrines at Brigstock, Northants

1963 ◽  
Vol 43 (2) ◽  
pp. 228-263 ◽  
Author(s):  
Ernest Greenfield
Keyword(s):  
Iron Age ◽  
Fourth Century ◽  
Third Century ◽  
The Third ◽  
Late Iron Age ◽  
Polygonal Shape

SummaryTwo shrines of circular and polygonal shape, probably part of a larger group, were erected early in the second half of the third century A.D., and occupied until late in the fourth century. The shrines occur in an area of widespread settlement dating from the late Iron Age until the end of the fourth century. Many objects of bronze and iron of ritual significance, together with a large number of votive deposits and coins, were recovered from the circular shrine. Miss M. V. Taylor's discussion of the principal objects appears on pp. 264–8.

Study about the Stone Curves and the Development of Polygonal Shape Cutting Device

2014 ◽  
Vol 1025-1026 ◽  
pp. 85-88 ◽  
Author(s):  
Sung Hoon Oh
Keyword(s):  
Cutting Planes ◽  
Working Time ◽  
Path Generation ◽  
Control Module ◽  
Positioning Control ◽  
Large Size ◽  
Design Program ◽  
Polygonal Shape ◽  
The Temple

Through this study, equipment was developed which could work large size stones into linear and curve shaped cutting planes and cut polygonal shaped stones during the lapping and semi-finishing works which are pre-tasks to manufacture the large size building column or large size stone statue which is installed in the temple. The best is to read these instructions and follow the outline of this text. Safety of equipment could be secured using design program and structure interpreting program and productivity could be improved by reducing the required manpower and working time for rough grinding and semi-finishing works through positioning control module. This technology is expected to be utilized in manufacturing various stone equipments by applying the working path generation and oil pressure technologies as the type of NC work equipments as well as in future working area.

MECHANICAL PROPERTIES OF SQUEEZE INFILTRATED AS52 MAGNESIUM MATRIX COMPOSITES

2009 ◽  
Vol 23 (06n07) ◽  
pp. 1510-1515 ◽  
Author(s):  
YONG-HA PARK ◽  
YONG-HO PARK ◽  
IK-MIN PARK ◽  
KYUNG-MOX CHO ◽  
JEONG-JUNG OAK ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Creep Rupture ◽  
Matrix Composites ◽  
Matrix Interface ◽  
Magnesium Matrix ◽  
Magnesium Matrix Composites ◽  
Squeeze Infiltration ◽  
Polygonal Shape ◽  
Creep Rupture Test ◽  
Infiltration Method

Aluminum borate whisker (9( Al 2 O 3)·( B 2 O 3)) reinforced AS52(with and without strontium modification) metal matrix composites (MMC) were fabricated by the squeeze infiltration method. Creep rupture test was carried out at 150°C and 100 MPa condition. Results showed that Alborex reinforcement and modified polygonal shape Mg 2 Si phase contributed to the enhancement of mechanical properties and creep resistance. Creep rupture time was increased 11% and minimum creep rate was decreased 17% in the composite. At the Alborex/matrix interface, uniform thin layer of MgO was formed. The initiation of micro-voids at the reinforcement/matrix or Mg 2 Si /matrix interface was followed by their growth and coalescence to macro-cracks.

Alteration by Cerium Element on Primary and Eutectic Mg2Si Phases in Al-20%Mg2Si In Situ Composite

2015 ◽  
Vol 1125 ◽  
pp. 23-27 ◽  
Author(s):  
Nur Azmah Nordin ◽  
Saeed Farahany ◽  
T. Abubakar ◽  
Esah Hamzah
Keyword(s):  
Material Properties ◽  
Microstructural Analysis ◽  
Eutectic Cell ◽  
Characteristic Parameters ◽  
In Situ Composite ◽  
Melt Treatment ◽  
Morphology Effect ◽  
Polygonal Shape ◽  
Fibre Form

Owing to its beneficial material properties, Al-Mg2Si in-situ composite has recently received wide attention and application in the manufacture of automotive and aerospace components. Melt treatment of the in-situ composite with the addition of Ce has resulted in a change in the primary and eutectic Mg2Si phases to refined morphology, which would be expected to improve the mechanical properties of the composite. Characteristic parameters of Mg2Si particles have been investigated via thermal and microstructural analysis. This has revealed that the addition of 0.8wt.% Ce produced optimum refinement effects on Mg2SiP because the coarse structure has been changed to a polygonal shape and reduced in size. Similarly, the flake-like morphology of Mg2SiE has been transformed into a rod-like or fibre form in addition to reduction of the eutectic cell area. The result also showed an increase in nucleation temperature TN of Mg2SiP while depressed for Mg2SiE, which also corresponds to the refinement morphology effect.

scholarly journals Numerical Approach to the Kinematic Analysis of Deployable Structures Forming a Closed Loop

2006 ◽  
Vol 220 (7) ◽  
pp. 1045-1056 ◽  
Author(s):  
W W Gan ◽  
S Pellegrino
Keyword(s):  
Systematic Study ◽  
Numerical Scheme ◽  
Closed Loop ◽  
Numerical Approach ◽  
The Other ◽  
Deployable Structures ◽  
Potential Applications ◽  
Motion Range ◽  
Polygonal Shape ◽  
Spatial Linkages

This article is concerned with spatial linkages forming a closed loop. In one extreme configuration (deployed), these linkages form a frame of polygonal shape, such as a square or a hexagon, and in the other extreme (folded), configuration form a tight bundle. Throughout their motion range, they have mobility one. These linkages have potential applications for next-generation deployable spacecraft structures. The article presents a systematic study of the kinematics of closed-loop structures with these special properties and a numerical scheme for simulating their deployment without making any assumptions about particular symmetry features. The proposed simulation technique is applied to three examples that show different behaviour during deployment.

Spherical and polygonal shape of Au nanoparticles coated functionalized polymer microspheres

2015 ◽  
Vol 345 ◽  
pp. 264-271 ◽  
Author(s):  
Ting Xu ◽  
Yingzhi Li ◽  
Junxian Zhang ◽  
Yalong Qi ◽  
Xin Zhao ◽  
...  
Keyword(s):  
Au Nanoparticles ◽  
Polymer Microspheres ◽  
Polygonal Shape

scholarly journals Distribution of an asialoglycoprotein receptor on rat hepatocyte cell surface.

1982 ◽  
Vol 95 (3) ◽  
pp. 864-875 ◽  
Author(s):  
S Matsuura ◽  
H Nakada ◽  
T Sawamura ◽  
Y Tashiro
Keyword(s):  
Cell Surface ◽  
Control Level ◽  
Liver Homogenate ◽  
Asialoglycoprotein Receptor ◽  
Lateral Face ◽  
Rabbit Antibody ◽  
Rat Hepatocyte ◽  
Antibody Conjugates ◽  
Rapid Clearance ◽  
Polygonal Shape

Direct ferritin immunoelectron microscopy was applied to visualize the distribution of the hepatocyte cell surface of the asialoglycoprotein receptor which is responsible for the rapid clearance of serum glycoproteins and lysosomal catabolism. For this purpose, rabbit antibody against the purified hepatic binding protein specific for asialoglycoproteins was prepared and coupled to ferritin by glutaraldehyde. The specific antibody conjugates were incubated with the hepatocytes, which were isolated from rat liver homogenate after fixation by glutaraldehyde perfusion. These cells preserved well the original polygonal shape and polarity, and it was easy to identify the sinusoidal, lateral, and bile canalicular faces. The surface density of the ferritin particles bound to the sinusoidal face was about four times higher than that of particles bound to the lateral face, while the bile canalicular face was hardly labeled and almost at the control level. Using the surface area of hepatocyte measured by morphometrical analyses, it was estimated that approximately 90% of bound ferritin particles were at the sinusoidal face, approximately 10% at the lateral face, and approximately 1% at the bile canalicular face. Nonhepatic cells such as endothelial and Kupffer cells had no receptor specific for asialoglycoproteins.

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