To determine the amount of damping in a bridge it was set into vibration in the fundamental mode by dropping a weight on it at centre span. The observed frequency was 1.5 Hz, and the amplitude was found to have decreased to 0.9 of the initial maximum after 2 s. The equivalent mass of...
where γ = unit weight of rock mass (gm/cc); N = actual rock mass number, that is, stress-free Barton's Q soon after the underground excavation; Q = actual (disturbed) rock mass quality soon after the underground excavation and corrected for SRF = 2.5; B = tunnel span or diameter ...
Dalsky GP, Stocke KS, Ehsani AA, et al. Weight-bearing exercise training and lumbar bone mineral content in postmenopausalwomen. Ann Intern Med 1988; 108 (6): 824–8 Cavanaugh DJ, Cann CE. Brisk walking does not stop bone loss in postmenopausal women. Bone 1988; 9 (4): 201–4 Cros...
Thus, any interactions detected will not be due to gene–environment correlation (rGE), but will instead be interactions between BMI and the variance components specific to BP. We further performed stratified analyses in twin pairs concordant for normal weight or overweight to confirm the results ...
It has features such as high free volume, low pressure drop, low mass-transfer unit height, high flooding point, uniform gas-liquid contact, small specific gravity, high mass transfer efficiency and so on.Plastic Hiflow ring application: gas scrubbing tower, purification tower, ...
145*37(3*6) (20 ring) 65 95 1100 46 76 Feature High void ratio, low pressure drop, low mass-transfer unit height, high flooding point, uniform gas-liquid contact, small specific gravity, high efficiency of mass transfer. Advantage 1. Their special struc...
weigh less than 125 kg (due to weight limit of LIV device) have aBMD of the FN, TH and/or LS in the osteopenic or osteoporotic range corresponding to aT-score ≤ − 1.0 be willing and able to be allocated to any of the four trial arms. ...
145*37(3*6) (20 ring) 65 95 1100 46 76 Feature High void ratio, low pressure drop, low mass-transfer unit height, high flooding point, uniform gas-liquid contact, small specific gravity, high efficiency of mass transfer. Advantage 1. Their special structure make it has ...
Soil particles with small size, whose motion process was affected by air resistance close to its own gravity, greatly influence the motion state, and could not be used to measure the CRC. Therefore, the diameter of soil particles should not be too large or too small. Using the measurement ...
𝑔→g→ Gravity (N) 𝑘∗k* Coefficient of mean absorption (−)− 𝐾K Permeability parameter (m2) 𝑇T Temperature (K) 𝑉𝐶VC Mass transpiration (−)− Greek symbols 𝛼α Dimensional stretching/shrinking parameter (−)− 𝛽β Thermal expansion coefficient (K−1...