(0,1],let n max{[1/λ1],[1/λ2]},m 2 be integers.Suppose integers a ∈[1,λ1n] and b∈[1,λ2n] satisfy the congruence b ≡ a m(mod n).The main purpose of this paper is to study the mean value of(a-b) 2k for any fixed positive integer k and obtain some sharp ...
2. Materials and Methods Experiments were performed in a mock–up area in a laboratory environment with dimensions 7.32 m × 7.57 m × 3.50 m. The area was furnished to simulate a typical classroom. Room acoustic measurements were performed in this environment as well as recordings for the ...