The artical describes the research on bullet-proof performance of Al2O3-ZrO2 ,Al2O3-Si3N4, Al2O3-Cr2O3 ,99% Al2O3 against 105mm imitate armour-piercing projectile. The relationship between the mechanical properites and the bullet-proof performance were imestigated.

This article examines the relationship between supplier’s calculative commitment and its use of control mechanisms, and investigates the moderating effects of Guanxi and environment uncertainties on the relationship in the context of Chinese marketing channel.

The main orientation of theoretic research should be on the analysis of influential relationship between disaster and each factor based on field flow method, and the emphases is on the general law such as disaster mechanism and coupling among multiple disasters.

Using related sequences of Lucas numbers, other 3-manifolds are constructed, their geometric structures determined, and a curious relationship between the homology and the invariant trace-field examined.

New results are obtained on the excess and overcompleteness of Gabor frames, on the relationship between frame bounds and density, and on the structure of the dual frame of an irregular Gabor frame.

The relationship between multiresolution analysis and filtering schemes is a well known facet of wavelet theory.

The relationship between harmonic analysis on GF(p?) and harmonic analysis on its subfields, is studied.

To establish a relationship between activity and structural descriptors of BABQ compounds, it is essential to develop a regression or an input-output model.

(1) This paper deals with the external morphology of six species of no-todontid larvae belonging to five different genera. Their common characteristicsare as follows: (a) With lobed clypeal membrane, the membrane between theclypeus and the labrum. (b) The mandibles are not dentate but evenly archedon the outer margin. (c) With eversible prothoracic gland (except Melalophaanachoreta Fabr.). (2) According to the chaetotaxy of the head, the notodontid larvae may beclassified as three different types: (a)...

(1) This paper deals with the external morphology of six species of no-todontid larvae belonging to five different genera. Their common characteristicsare as follows: (a) With lobed clypeal membrane, the membrane between theclypeus and the labrum. (b) The mandibles are not dentate but evenly archedon the outer margin. (c) With eversible prothoracic gland (except Melalophaanachoreta Fabr.). (2) According to the chaetotaxy of the head, the notodontid larvae may beclassified as three different types: (a) With primary setae only. (b) Both theprimary and secondary setae are present, but the former are much stouter andlonger. (c) The primary and secondary setae are unseparable. (3) The variation of the structures of the labrum and mandible may beadopted as taxonomic characteristics. (4) As regard to the setal arrangement of the body, the following typicalforms may be recognizable: (a) With primary setae only. (b) With secondarysetae. (c) With both the secondary setae and verrucae, as the former are arrang-ed in groups, the nomenclature of verruca are adopted in naming them. (5) The close phhlogenetic relationships between the families Notodontidae,Noctuidae and Arctiidae are made evident by the comparative study of theirexternal morphology, especially the chaetotaxy of the body.

The softening point and Young's modulus of polymethylmethacrylate at low temperature with various contents of dibutyl phthalate have been measured by using a consistometer and a dilatometer respectively. The relationship between the molar con- centration of dibutyl phthalate, N, and the softening point, T, can be expressed by the equation T=112-947N. An explanation for the difference between the coefficient 947 and the value 228-232, previously obtained by Zhurkov, is suggested. The addition of...

The softening point and Young's modulus of polymethylmethacrylate at low temperature with various contents of dibutyl phthalate have been measured by using a consistometer and a dilatometer respectively. The relationship between the molar con- centration of dibutyl phthalate, N, and the softening point, T, can be expressed by the equation T=112-947N. An explanation for the difference between the coefficient 947 and the value 228-232, previously obtained by Zhurkov, is suggested. The addition of 1% or more dibutyl phthalate substantially improves the low temper- ature impact strength of polymethylmethacrylate, but it shows no appreciable change in Young's modulus at room temperature with 1-5% dilbuytl phthalate.

An investigation of the rheological relationships between shear stress shear rate apparent bulk viscosity temperature was carried out by examining the viscous flow of slightly milled native Hevea rubber (i) The Eisenschitz's equation for non-Newtonian flow has been verified by the experiments on the dependence of shear rate on shear stress. By this equation, the apparent viscosity can be referred to the Newtonian viscosity η_0 (at σ=0). The parameter (G_i=3.30×10~5 dynes/cm~2), interpreted as an internal...

An investigation of the rheological relationships between shear stress shear rate apparent bulk viscosity temperature was carried out by examining the viscous flow of slightly milled native Hevea rubber (i) The Eisenschitz's equation for non-Newtonian flow has been verified by the experiments on the dependence of shear rate on shear stress. By this equation, the apparent viscosity can be referred to the Newtonian viscosity η_0 (at σ=0). The parameter (G_i=3.30×10~5 dynes/cm~2), interpreted as an internal modulus of rigidity, was found to be practically independent of temperature in the range of 50-90℃, thus agreeing with the results by treating Saunder and Treloar's data. (ii) For the shear rate dependence of apparent viscosity, when the number of Khun segments per unit volume was taken into account for the calculation of retardation time τ_1=2.84η_0 [J_e]_∞, the Debye-Bueche's equation was found to be able to fit into our data at moderate low shear rates. The values of steady-state elastic compliance [J_e]_∞ were determined by elastic-recovery experiments. Furthermore, the internal shear modulus Gi could be thus calculated by combining the Eisenschitz's equation with the Debye-Bueche's one. (iii) From the experiments on the temperature dependence of viscous flow under various stresses, the apparent activation energy ΔE_η was found to be 12.7 kcal/mole; and therefrom, by estimation, the unit of flow-the Eyring segment would be 30 carbon atoms long. All determinations of the flow rate under constant stress were carried out in a Hppler parallel-plate plastometer, used as a viscoelasticity-rheometer according to the theory developed by Dienes.