area properties of cross sections

... second moment of area about x-x In = the second moment of area about X-X The importance of the parallel axes theorem is that it is useful for calculating second moments of area of sections of RSJs, ... moments of area of two mutually perpendicular axes of a lamina is equal to the polar second moment of area about a point where these two axes cross 8.5 Parallel axes theorem Consider the lamina of ... properties of cross- sections Figure 8.3 Cross- section where J = polar second moment of area = C r d~ (8.5) Equation (8.4) is known as theperpendicular axes theorem which states that the sum of...

Ngày tải lên: 08/04/2014, 11:28

... images of anisotropically etched LSMO/LMO superlattices with pillar heights of lm and the schematic of final structure of LSMO/LMO superlattices for I-V cross- plane measurement (b) Side view of final ... were 40:10 sccm of Cl2:Ar, a chamber pressure of 0.7 Pa, an RF forward power of 800 W, and a capacitive bias of 350 W J Appl Phys 112, 063714 (2012) FIG (a) XRD 2-theta-omega scan of an LSMO/LMO ... pulse width of 25 ns A laser fluence of 1.3 J/cm2 and a pulse frequency of Hz were used to ablate the sintered LSMO target The deposition was performed at a constant substrate temperature of 740 ...

Ngày tải lên: 06/05/2014, 08:53

... 77% of the 'unchanged' participants Discussion In this cross- sectional and longitudinal study of patients with dizziness, measurement properties of a translated and adapted Norwegian version of ... Plot of eigenvalues of DHI-N items by exploratory factor analysis (EFA) (n = 92, sample 1) Scree Plot of eigenvalues of DHI-N items by exploratory factor analysis (EFA) (n = 92, sample 1) Page of ... measurement properties of health status questionnaires Journal of Clinical Epidemiology 2007, 60:34-42 Sartorius N, Kuyken W: Translation of health status instruments In Quality of Life assessment:...

Ngày tải lên: 18/06/2014, 19:20

... Parliament The North-west of England data is used with kind permission of Prof C Dowrick, University of Liverpool Page of 11 (page number not for citation purposes) Health and Quality of Life Outcomes ... structure of the Chinese version of the MDAS and confirm its integrity across an important demographic categorisation, namely: gender To investigate further the psychometric properties of this ... patients of 6.16 (SD 3.86) [45] Thirty nine percent screened positive for anxiety compared to 32% of CHD patients using the recommended cut-off of or over [46] Discussion The overall aim of this...

Ngày tải lên: 18/06/2014, 22:20

... allow meaningful interpretation of both constituents separately since the excited beam diameter covers large areas of cross hatches and MD line densities vary across the surface Thus, only explanation ... flow of a hydrogen-containing forming gas The optical properties of as-grown and annealed samples are characterized by macroscopic PL at 20 K The samples are mounted on the cold finger of a closedcycle ... the formation of orthogonally aligned QDs The rapid degradation of the optical quality of QDs on CHP upon high-temperature in situ annealing thus cannot result from the degradation of QDs since...

Ngày tải lên: 21/06/2014, 01:20

Ngày tải lên: 05/08/2014, 09:46

Ngày tải lên: 05/08/2014, 15:20

... beam of primary electrons did not penetrate other cells, layer of cells on a sheet of aluminium were analysed All measurements were made using an X-ray take-off angle of 45°, a measuring time of ... (unpublished data) In the spring of 1993, work was begun to prepare the drought stress Wooden structures of between 4.3 and 4.5 m high were built to support sloping roofs of clear plastic (89% light ... development, foliar leaching, or redistribution of nutrients to other parts of the plant The good nutritional quality of the soil allows us to discount the 1st of these hypotheses Several other studies,...

Ngày tải lên: 08/08/2014, 19:21

... characteristics of Quaternary sediments in Hanoi area and the methods to study dynamical properties of the soil; - Experimental study of dynamical properties of Quaternary sediments in Hanoi area The ... Scope areas of the study are the regions of urban districts and Thanh Tri district of Hanoi City Contents - An overview of soil dynamics; - Research on the theoretical basis of soil dynamical properties; ... CHARACTERISTICS OF ENGINEERING GEOLOGY OF QUATERNARY SEDIMENTS IN HANOI AREA AND RESEARCH METHODOLOGY OF THEIR DYNAMICAL PROPERTIES 3.1 Characteristics of stratigraphy and groundwater in Hanoi area 3.1.1...

Ngày tải lên: 25/05/2016, 15:17

... target signal The sum of these products then moves into the proper sample in the crosscorrelation signal The amplitude of each sample in the cross- correlation signal is a measure of how much the received ... curve of the form: sin(x)/(x) , is used to separate one band of frequencies from another c Sinc 0.3 Amplitude Amplitude 0.3 0.2 0.1 0.0 -0.1 -20 -15 -10 Sample number Chapter 7- Properties of Convolution ... affect any of the output signal values As shown by the examples in Fig 7-6, the impulse response of a causal system must have a value of zero for all negative numbered samples Think of this from...

Ngày tải lên: 13/09/2012, 09:49

... summary of the independent parameters the modified foaming apparatus FOAMING PROPER TIES used far experi- Nature Fixed Diameter Porosity Volume Volume Mass of of sparging disc of sparging disc of ... = Tw Did = = percent of gas initially in 70 ml of foam (gas Flow Rate) - ml/min of nitrogen time to fill the column with foam volume of liquid in the foam initially volume of liquid drained from ... characteristics of protein i.e the foaming capacity of protein and the stability and strength of the foam Foaming ability i.e Gi denotes the amount of gas retained in the foam reflecting the potential of...

Ngày tải lên: 16/12/2012, 15:10

... University of Bari in 1979 University Researcher at the of Engines and Energy Institute of the Faculty of Engineering at the University of Bari from 1983 to 1987 Associate professor of Technical ... measure of conductance The analyses, done in the laboratory of Technical Physics of the Polytechnic of Bari, were performed on some samples of calcarenite sandstone and calcareous stone of Fasano ... typologies of building wall: a wall in blocks of calcarenite sandstone assembled with mortar, typical of the constructions of "Sassi of Matera," and a masonry made with dry calcareous stones of Fasano,...

Ngày tải lên: 05/09/2013, 14:58

... Figure Effect of time of heatsetting on the linearity of load extension in weft direction of knitted Ingeo™ Poly (lactic acid) Figure Mean effect of time of heatsetting on the linearity of load extension ... Increasing time of heatsetting had effect on tensile properties of PLA at varying times of 30s to 90s at temperature of 130°C Optimum effect on tensile properties occurred at times of 30 – 45s PLA ... [PLA] Figure Mean [Ā] of effect of time of heatsetting on the tensile extension EM [%] of Ingeo™ Poly (lactic acid) 3.2 Linearity of load extension curve LT [-] The linearity of load extension curve...

Ngày tải lên: 05/09/2013, 16:10

... pH Because most of the chemical and biochemical reaction are influenced by the pH it is of great practical importance The adverse affect of most of the acids appear below and of alkalis above ... quality criteria of an aquatic system In the system where rate of respiration and organic decomposition are high ,the DO values remain lower than those of system where the rate of photosynthesis ... growth and activities of microorganism 3.6 Biological Oxygen demand It has been used as a measure of the amount of organic materialism an aquatic solution which support the growth of microorganism...

Ngày tải lên: 05/09/2013, 16:11

Ngày tải lên: 08/10/2013, 20:20

... a series of captors), and are thus much noisier 250 Static properties of granular materials F r p h z Fig 14.13 Sketch of the experimental set-up of Reydellet et al for the measure of the pressure ... focused on the quasistatic rheology of a granular system, so why is all of this related to the description of its statics? As a matter of fact, the static properties of the studied sample are responsible ... horizontal position of the apex of the pile – also, changing the sign of x changes that of the shear σx z More generally, the stress state of the jammed grain packing is assumed to be of the form σx...

Ngày tải lên: 01/11/2013, 08:20

... Formaldehyde increases infectivity Viruses DNA or RNA  Shell of protein (capsid) surrounding nucleic acid   Classification on basis of nucleic acid  DNA viruses: eg Herpes simplex virus (HSV) ... body Varicella zoster virus (VZV) VZV: Chickenpox VZV: Shingles Re-activation of latent infection Suppression of cell mediated immunity Bacteria  Unicellular,  DNA and RNA  Binary  No prokaryotes ... (transfer of plasmid DNA) Important bacterial products 1: extracellular polysaccharide  CAPSULE condensed, well defined layer closely surrounding the cell contributes to invasiveness of pathogenic...

Ngày tải lên: 12/12/2013, 17:15

Ngày tải lên: 17/12/2013, 15:19