This research concern with the metal complexes of ligand [N'-{2-(4-isobutyl-phenyl)-propionyl}pyridine-4-carbohydrazide] Co(II), Ni(II) , Cu(II) and Pd(II) have been synthesized characterized by atomic absorption infrared, electronic spectra, molar conductivity magnetic moment measurements. On basis data obtained from above measurements, act as a neutral bidentate octahedral structures are prop...

In this paper, wide band balanced antenna with enhanced bandwidth performance that covers the 850 to 3000 MHZ of Band, covering the GSM, UMTS, Bluetooth, GPS, & Wi-Fi applications is investigated[1-4]. This antenna was designed in HFSS which have low profile, linear phase and constant radiation pattern with proper return loss and resonant on multiple frequencies. This proposed antenna was then ...

The robustness of bipedal walking robots can be enhanced by the use of adaptive control techniques. In this paper, we extend a previous control approach, “Virtual Model Control” (VMC) [6] to create “Adaptive Virtual Model Control” (AVMC). The adaptation compensates for external disturbances and unmodelled dynamics, enhancing robustness in the control of height, pitch, and forward speed. The sta...

This work proposes a DCT based Steganographic technique for the color image. The true color cover image is decomposed into three separate color planes namely R, G and B. During embedding of secret images into different color planes, images are dispersed among the selected DCT coefficients using a pseudo random sequence and a Session key. Secret images are extracted using the session key and the...

In the title compound, [Cu(C6H5BrNO)2]·H2O, the Cu(II) ion has a square-planer N2O2 coordination environment. Slipped π-π stackings [centroid-centroid distances: 3.625 (3), 3.767 (3), 3.935 (3) and 4.255 (3) Å] between pyridine rings and Cu⋯π inter-actions (centroid-to-Cu(II) distance: 3.56 Å) between Cu(2+) ions and pyridine rings lead to a layered arrangement parallel to (010). Inter-molecula...

The nonlinear motion of underactuated mechanisms has drawn recent interests of researchers. The nonlinearity is often referred to as nonholonomy and related to many both theoretical and practical issues. In this paper, we rst analyze the nonlinear behavior of a two-joint planer manipulator with the second joint free from nonlinear dynamics point of view. We then discuss the simultaneous positio...

IN THE TITLE COMPOUND [SYSTEMATIC NAME: 1-(2,4-dimethoxyphenyl)-3-(3,4-dimethoxyphenyl)prop-2-en-1-one], C(19)H(20)O(5), the dihedral angle between the benzene rings is 26.88 (5)°. One of the meth-oxy groups is twisted slightly away from the plane [C-O-C-C torsion angle = -12.8 (3)°] while the others are almost co-planer [C-O-C-C torsion angles = -3.2 (3), 2.6 (3) and -3.6 (3)°]. The crystal pa...

This paper studied the stiffness model and characteristics of a planar 3-RPS PM with 3-DOF. The 6 × 6 form stiffness matrix of the planar 3-RPS PM is derived with both active and constrained wrenches considered. To characteristic the stiffness of the planer 3-RPS PM, two decomposition methods including the eigenscrew decomposition and the principle axes decomposition are applied to the stiffnes...

This paper presents the development of an interactive and user-friendly environment for simulation and control of flexible manipulator systems. A constrained planer single-link flexible manipulator is considered. A simulation algorithm characterising the dynamic behaviour of the manipulator is developed using finite difference methods. Several open-loop and closed-loop control strategies are de...