Studies on Starches of High Amylose-Content. Part VI. Observations on the Stability of Aqueous Dispersions of Waxy Maize, Maize, and Amylomaize Starches; and the Self-fractionation of Amylomaize

The sensory and functional properties of rice are predominantly associated with its amylose content. Granule-bound starch synthase (GBSS) encoded by the Waxy (Wx) gene determines the synthesis of amylose, while starch branching enzymes encoded by Sbe genes are involved in the formation of amylopectin. Some studies have demonstrated that Wx gene is the major controller of amylose content but there are one or more modifying genes affecting the amylose content. Three markers, microsatellite, Single – nucleotide – polymorphism (G/T SNP) in Wx gene and Single – nucleotide – polymorphism (T/C SNP) in Sbe1 gene, were tested for their association with amylose content using sixty-nine rice accessions from twenty countries. Of the three markers, two markers in Wx gene are significantly associated with amylose content. The combination of two markers in Wx gene (haplotypes) explained 83.8% of the variation in amylose content and discriminated the three market classes of glutinous, low, intermediate and high amylose content of rice from each other. And T/C SNP in Sbe1 locus was not a suitable marker for amylose content. Keywords: marker, amylose content, Waxy gene.

Download Full-text

Research on the Performances of Self-Oscillation Linear Actuator and its Compensation

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.433-440.7375 ◽

2012 ◽

Vol 433-440 ◽

pp. 7375-7380

Author(s):

Fan Lin ◽

Li Qiao ◽

Yu Wang ◽

Hui Liu

Keyword(s):

Nonlinear Model ◽

Servo System ◽

The Self ◽

Linear Actuator ◽

Phase Lag ◽

Phase Lead ◽

The Stability ◽

Lag Compensation

Base on constitution of the self-oscillation linear actuator which is a servo system for a gun launched missile, a nonlinear model was built. Though the experiment, the model is correct. This paper studied the stability, the self-oscillation's frequency and gain on this kind of servo system. On comparing phase-lead compensation and phase-lag compensation, the later is more suitable for this system. After testing, the lag regulator is designed for the system.

Download Full-text

AN INTERACTIONAL APPROACH TO ATTRIBUTIONAL DIMENSIONS IN DYSPHORIA

Social Behavior and Personality An International Journal ◽

10.2224/sbp.1990.18.2.267 ◽

1990 ◽

Vol 18 (2) ◽

pp. 267-277 ◽

Cited By ~ 1

Author(s):

Janet E. Eschen ◽

David S. Glenwick

Keyword(s):

Attributional Style ◽

The Self ◽

Regression Analyses ◽

Self Blame ◽

Attributional Style Questionnaire ◽

Standard Manner ◽

Stability Dimension ◽

The Stability ◽

The Relationship

To investigate the possible contributions to dysphoria of interactions among attributional dimensions, 105 freshmen and sophomores were administered the Attributional Style Questionnaire and the Beck Depression Inventory. Analyses examined the relationship to dysphoria of (a) the traditional composite score; (b) multiple regression analyses including interactions among the various dimensions; and (c) indices of behavioral self-blame, characterological self-blame, and external blame. The results provided modest support for the specific hypothesized interactional model and, to a large extent, appeared to support the validity of the standard manner in which dysphoric attributional style is viewed. Refinements of the traditional model are suggested, involving the self-blame construct, the possible role of the stability dimension, and the relationship between controllability and positive event attributions.

Download Full-text

The Slabbing Mechanics Analysis of the Tunnel Lining

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.243-249.3530 ◽

2011 ◽

Vol 243-249 ◽

pp. 3530-3537

Author(s):

Zu Song Wu ◽

Guang Qi Chen ◽

Kou Ki Zen ◽

Xin Rong Liu

Keyword(s):

Surrounding Rock ◽

Tunnel Lining ◽

The Self ◽

Road Tunnel ◽

The Road ◽

Mechanics Analysis ◽

The Stability

When the road tunnel is excavated, the multi lining is used to being applied. In order to keep the surrounding rock stabilize and arouse the self-stability of the surrounding rock, building the first support is essential. But the slabbing often occurs near the spring line on the surface of the first lining, and because the slabbling is a common failing and not attracted our most attentions, it will develop to the crack and threaten the stability of the structure finally. This paper uses the line elastic method to analyze the mechanics that causes this slabbing phenomenon via the interaction between the surrounding rock and the first lining, and suggests the measure that escape the slabbing.

Download Full-text

STABILITY OF SI-DOPED AlGaAs/GaAs MODFET STRUCTURES DURING CONVENTIONAL FURNACE AND RAPID OPTICAL ANNEALING.

MRS Proceedings ◽

10.1557/proc-56-301 ◽

1985 ◽

Vol 56 ◽

Cited By ~ 1

Author(s):

J. K. ABROKWAH ◽

H. HIBBS ◽

R. R. DANIELS ◽

P. JOSLYN

Keyword(s):

High Performance ◽

The Self ◽

Superlattice Structure ◽

Annealing Conditions ◽

Conventional Furnace ◽

Algaas Layer ◽

Si Doped ◽

Dx Center ◽

Superlattice Structures ◽

The Stability

AbstractThe use of an AlGaAs/n-GaAs superlattice in place of the n-AlGaAs layer in MODFET devices reduces the light and temperature sensitivity of the threshold voltage. This paper considers the stability of Si doped superlattices under annealing conditions required for activation of the implant in the self-aligned gate MODFET fabrication process. Rapid optical annealing does not significantly degrade the superlattice structure. The DX center concentration in the superlattice structures is a factor of 30 less than measured in conventional MODFET structures. High performance MOOFET devices have been fabricated using the self-aligned gate process with rapid optical annealing.

Download Full-text