7 4 engineering properties of masonry walls 711

... moisture content from 73.78 to 80.54 mm, 20.67 to 22.01 g, 0.705 to 0.735 %, 32.27 to 39.25 mm2, 17.25 to 23.13 mm3, 0.464 to 0.624, respectively, which may be due to absorption of moisture by the ... Physical properties of sweet corn seed (Zea mays saccharata Sturt.) J Food Engg., 74(4): 523-528 Gely, M C., and A M Pagano 2017 Effect of moisture content on engineering properties of sorghum ... In Agri 11 (4) 539-547 Jambamma, Imaya Kumari, and A Kailappan 2011 "Study of physicochemical properties of food grain sorghum and product sorghum." International Journal of Recent Scientific

Ngày tải lên: 28/09/2020, 17:43

... physical properties of peanuts International Journal of Food Properties 9(1): 25-37 Aydin, C (2007) Some engineering properties of peanut and kernel Journal of Food Engineering 79(3): 810-816 ... third theory of comminution Transactions on AIME Mining Engineering.193: 484-494 Dutta, S K., Nema, V K., and Bhardwaj, R K (1988) Physical properties of gram Journal of Agricultural Engineering ... percent aspect ratio of groundnut pods and kernels were found to be 16.93, 8.65mm, and 906.01, 237.03 mm2 and 48.95, 71.94% and 35.71, 63.74%, respectively The percentage sphericity of groundnut kernels

Ngày tải lên: 29/09/2020, 13:50

... strength of specimens increases with an increase dosage of Na2O because molarity of Table 4 Mixture proportions of CLSM (56.58 ~ 57.43) (14.89 ~ 15.11) Cement (4.28 ~ 5.71) (22.83 ~ 23.17) Cementless ... 04.02, PA 19428-2959, US. ASTM D4832 (2004) “Standard test method of preparation and testing of controlled low strength material (CLSM) test cylinders, ” Annual book of ASTM Standards, Vol 04.02, ... 19428-2959, US. ASTM D5334 (2004) “Standard Test Method for determination of thermal conductivity of soil and soft rock by thermal needle probe procedure, ”Annual book of ASTM Standards, Vol 04.02,

Ngày tải lên: 02/11/2022, 11:38

... themselves, concerning 1,871, 1,603, and 1,770 children From all these children, 25% came from each of the four groups, and half of the cases con-cerned boys Of all children, 79.5% had parents who ... reliability of the parent version was examined, with correlations of 77 for the total problems scale, 81 for hyperactivity-inattention, 72 for emotional problems, 72 for prosocial behaviour, 54 for ... scores indicating higher parenting stress.Psychometric properties of the PDH have been found adequate [35] Cronbach’s alphas were 77, 79, and 78 at T1, T2, and T3 The parenting scale The Parenting

Ngày tải lên: 10/01/2020, 14:51

... 3.56 / 3.16 1685 / 1770 1.1 / 3 5.42 / 5.46 1231 / 1510 / ? 0.72 / 1.35/ ? 5.66 / 5.65 / ? 508 / 798 / ? 0.08 /0.18 / 1.45 6.45 / 6.09 / ? IV / III-V / II-VI* ∗Fill in as many of the question marks ... 13.225 9 Diffraction Picture of the Origin of Band Gaps Probability Density=probability/volume of finding electron=| ψ |2 x a x a s a π ψ π ψ 2 2 2 2 cos 4 sin 4 = = a a • Only two solutions ... Trends Material GaN AlAs GaP GaAs InP InAs InSb Eg(eV)°K 3.39 2.3 2.4 1.53 1.41 0.43 0.23 µn(cm2/V·s) 150 180 2,100 16,000 44,000 120,000 1,000,000 Remember that: * m e τ 2 2 2 * 1 1 k

Ngày tải lên: 11/08/2014, 14:20

... Trang 6Demographic findings of participantsOut of 290 participants with a mean age of 34.8 years, 150 (51.7%) were male and 140 (48.3%) were female Moreover, 130 (44.9%) participants had a college ... the validity and reliability of this tool The items of this tool include ‘occupation of the head of household as the main source of income’, ‘education of the head of household’, ‘household’s ... Department of Statistics and Epidemiology, Faculty of Health, Tabriz University of Medical Sciences, Tabriz, Iran 4 Depart‑ ment of Community Nutrition, Faculty of Nutrition, Tabriz University of Medical

Ngày tải lên: 31/10/2022, 03:34

... AnCOLLOID CHEMISTRY Chapter 7 – Kinetic properties of colloids Trang 21 Brownian motionTrang 3• Particles spontaneously diffuse from a region of higher concentration to a region of lower concentration ... Sedimentation Equilibrium of Sedimentation and diffusion Trang 14rN RT D g r A p    3 Trang 164 OsmosisTrang 21 Viscosity is an expression of the resistance to flow of a system under an applied ... direction of decreasing concentration 2 Diffusion Trang 52 DiffusionTrang 7Let us represent the gravity, buoyant and drag forces by F g , F b and F d , respectively. Let the mass of the particle

Ngày tải lên: 04/04/2023, 13:31

... Rc1 + Rc2 ; major problem ⇒ 4 probes For R Trang 103.225 19 How to Make Resistance Measurements Rs Rc4 Rc1 I V14 v23 c3 4 probe method: Essential feature - use of high impedance voltmeter ... Fitzgerald-1999 Schematic model of a crystal of sodium metal From: Kittel, Introduction to Solid State Physics, 3rd Ed., Wiley (1967) p 198 C Does this Microscopic Picture of Metals Give us Ohm’s ... Metals show Ohmic behavior microscopic origin? R Trang 43.225 7 Microscopic Origin: Can we Predict Conductivity of Metals? • Drude model: Sea of electrons – all electrons are bound to ion atom

Ngày tải lên: 11/08/2014, 14:20

... 13.225 11 Density of Thermally Promoted of Carriers ∫ ∞ = c E dE E g E f Density of electron states per volume per dE Fraction of states occupied at a particular temperature Number of electrons ... the middle of the band gap • The law of mass action describes the electron and hole populations, since the total number of electron states is fixed in the system     + = 4 3 2 gives ... • Experiment: • B acceptor in Si: 046 eV • P donor in Si: 0.044 eV • As donor in Si: 0.049 © E Fitzgerald-1999 The Power of Doping • Can make the material n-type or p-type: Hydrogenic impurities

Ngày tải lên: 11/08/2014, 14:20

... Messungen messplatz_1 ] M Jägle / 27.02.2001 S1219a S1219c M 9710746 20V Datum: 23.02.2001 - 27.02.2001 Steuerdatei: allgas_h2.stg Meßprotokoll: 273 Schematic of Gas Sensor Structure MicroElectroMechanical ... Choice of Piezoelectric Materials • Temperature limitations of piezoelectric materials Temperature ( o C) Limitations Quartz 450 High loss LiNbO 3 300 Decomposition Li 2 B 4 O 7 500 Phase ... 30 50 70 90 100 -10 0 10 30 50 70 90 100 MFC2 Temp NO2 NH3 Feuchte CO NO2kl H2 time / h 100k Temp:360C, H 2 , CO, NH 3 (10, 50 and 100 ppm), NO 2 (0.2, 0.4, and 2 ppm) ZnO(Ar:O2=7:3)

Ngày tải lên: 11/08/2014, 14:20

... recording/stimulation microprobe Probes 15µm thick 2-4mm long (Najafi and Hetke, IEEE Trans Biomed Eng 37, 474 (1990).) Trang 83.225 © H.L Tuller-2001 1Measurement of Gas Sensor Performance Si wafer ZnO ... Institute of Technology) 2 Sputtered SnO2 film (60 nm) (Fraunhofer Institute of Physical Measurement Techniques) • Target gases: H2, CO, NH3, NO2 , CH4 • Operating temperature: 320 - 460 ºC ... Variation of band-gap energy with composition x of In1-xGaxAs © H.L Tuller, 2001 Band-Gap Colors Mixed crystals of yellow cadmium sulfide CdS and black cadmium selenide CdSe Trang 23.225 17 Light

Ngày tải lên: 11/08/2014, 14:20

... contribute to properties TF~104K (Troom~102K), EF ~100Eclass, vF 2~100vclass 2 Trang 93.225 5Effect of Temperature (T>0): Coupled electronic-thermal properties in conductors properties each ... Fitzgerald-1999 Trang 73.225 1Representation of E,k for 1-D Material 2 1 2 2 2 1 ) ( 2 − = = = = E m k m L dE dk dk dN E g L k h h π π π g(E)=density of states=number of electron states per ... tail, for v v T U      ∂ ∂ = Heat capacity of metal (which is ~ heat capacity of free e- in a metal): ( ~ ~ U ∆ ⋅∆ b ⋅ F ⋅ b F ⋅ b U=total energy of electrons in system T k E g T U v v 2 )

Ngày tải lên: 11/08/2014, 14:20

... Trang 13.225 7 Use of Minority Carrier Diffusion Equations • Example: Light shining on a surface of a semiconductor hν G at x=0 (assume infinite absorption ... achieved where diffusive flux of the carriers is balanced by the drift flux E Drift and Diffusion Trang 4Joining p and n Ec EF Ev Carriers flow under driving force of diffusion until EFis flat ... ∆ ∆ = ∂ ∆ ∂ − − − try Now use boundary conditions of the problem: h D x Be p A p x τ − = ∆ = ∴ = ∆ ∞ = 0 0 , @ Units of length: minority carrier diffusion length, L h h L x

Ngày tải lên: 11/08/2014, 14:20

... Solution: grade index y n n2 n1 © E Fitzgerald-1999 Trang 73.225 7 Characteristics of Optical Fiber © E Fitzgerald-1999 Characteristics of Optical Fiber Trang 83.225 9 Colors Produced by Chromium ... in the ground state of a chromium atom (A) and a trivalent chromium ion (B) Chromium Electronic Structure © H.L Tuller, 2001 Trang 93.225 11 Interaction of the d orbitals of a central ion with ... g r k c k ∂ ∂ = = ε ω g r k c k ∂ ∂ ≠ = ω ε ω ) ( © E Fitzgerald-1999 Trang 4Spontaneous Polarization Remember form of orientational polarization: kT C kT p or= = 3 2 α With C ≡Curie constant

Ngày tải lên: 11/08/2014, 14:20

... vphase ω ⇒ • • 0 0 − = µ c Example: Violet light (ν = 7.5 x 1014 Hz) λ = c/ν = 400 nm k=2π/ λ = 1.57 x 107 m -1 ω = 2 π ν = 4.71 x 1015 s-1 ε ) ε (kx-) ε Trang 103.225 13 Waves in Materials; ... electromagnetic waves! Response of Light to Interaction with Material SI Units (MKS) M H B P E D t D c J c H t B c E x B D r r r r r r r r r r r r r π π π πρ 4 4 1 4 1 0 4 + = + = ∂ ∂ + = ∇ ∂ ... degrees out of phase with E, σ is imaginary Response of e- to AC Electric Fields Qualitatively: ωτ<<1, electrons in phase, re-irradiate, Ei=Er+Et, reflection ωτ>>1, electrons out of phase,

Ngày tải lên: 11/08/2014, 14:20

... polarisation H2O 1 .77 80 .4 Electronic, ionic, and molecular polarisation Polarization that is active depends on material and frequency 3.225 © E Fitzgerald-1999 Microscopic Frequency Response of Materials ... So polarization slows down the velocity of the wave in the material © E Fitzgerald-1999 Compare Optical (index of refraction) and Electrical Measurements of ε Material Optical, n2 Electrical, ε ... Application for Different E-M Frequencies Methods of detecting these frequencies Other satellite, 10-50GHz λ=3cm-6mm (‘mm wave’) Cell phones λ= 14- 33cm DBS (TV) λ=2.5cm Fiber optics λ=1.3-1.55µm...

Ngày tải lên: 11/08/2014, 14:20

... force=20+(5 4) =40 kN tie area= (40 ×103)/250=160mm2 Provide one 15mm bar within 1.2m of edge of floor Internal ties Assume Gk=5kN/m2, Qk=1.5kN/m2 and La=4m Then Ft =40 kN/m width = [40 (5+1.5) 4] / (7. 5×5)=35.5kN/m ... reinforcement of masonry sections is limited ©20 04 Taylor & Francis 10.3.2 Shear strength of rectangular section reinforced masonry beams The method of calculating the flexural strength of reinforced masonry ... Ft=(3.0/2.5) 40 =48 kN/m length (which governs) Shear strength is found using Clause 25 of BS 5628, fv=0.35+0.6gA (max 1 .75 ) or fv=0.15+0.6gA (max 1 .4) depending on mortar strength From Clause 27. 4 of BS...

Ngày tải lên: 08/08/2014, 13:21

... p( y ) ≡ −2.315 − 0 .45 67 y (5.3) (5 .4) (5.5) Lignin 211 ∆E RT1 ∆E = logφ + 0 .45 67 = RT2 log φ1 + 0 .45 67 100 30 20 80 10 60 40 370 47 0 570 670 77 0 T/K Figure 5 -49 TG curves of dioxane lignin measured ... mass of fractionated dioxane lignin (DL) 2.1.3 Effect of thermal history Temperature of heat treatment 44 5 Tg 43 5 Tg 42 5 T gl 40 5 Tgl 385 365 Tg T gl Tgh T gh T gh T gh 345 T gl 350 370 390 41 0 43 0 ... around 240 K for three kinds of lignin 10 80 160 240 320 40 0 48 0 T/K Figure 5- 27 Variation of line width of narrow and broad components with temperature of Kraft lignin 10 80 160 240 320 40 0 48 0...

Ngày tải lên: 11/08/2014, 06:20

... þ bz zy Þdx ð6 :44 aÞ ðbx xx þ by yx þ bz zx Þdy ð6 :44 bÞ x or ð Uint ¼ y The components of force, Fx and Fy , on dislocation (Fig 6. 24) are obtained from the first derivatives of the interaction ... plasticity III On the mechanism of the glide process Z Phys vol 89, p 6 34 Peierls, R (1 940 ) The size of a dislocation Proc Phys Soc vol 52, p 34 Polanyi, M (19 34) On a kind of glide disturbance that ... Taylor, G.I (19 34) The mechanisms of plastic deformation of crystals Part I, Theoretical Proc R Soc, London vol A 145 , p 362 Volterra, V (19 07) Ann Ecole Normale Super vol 24, p 40 0 Weertman, J...

Ngày tải lên: 11/08/2014, 15:20

... The mechanical properties of compatible blends resemble those of random copolymers, having a single T^ value and modulus transition zone TK varies rather regularly with composition, often following ... transitions instead of the usual one Each transition is characteristic of one of the homopolymers The resulting modulus-temperature curve has two steep drops, as shown in Figure The value of the modulus ... the ratio of the components and on which phase tends to be the continuous phase and which is the dispersed phase, and on the morphology of the discontinuous phase 56 Chapter (1 04, 116,1 17) A corresponding...

Ngày tải lên: 12/08/2014, 03:20