Abdelkader Khadir, Nouredine Sengouga and Mohamed Kamel Abdelhafidi
epitaxial multilayers: III. Preparation of almost perfect multilayers, Journal of Crystal Growth 32 (1976) 265-273
 H. Rücker, B. Heinemann, A. Fox. Half-terahertz SiGe BiCMOS technology, In IEEE 12th Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems (2012) 133–136
 B. Heinemann, et al. SiGe HBT technology with f T / f MAX of 300/500 GHz and 2.0 ps CML gate delay, In IEEE 2010 International Electron Devices Meeting (2010) 688–691
 P. Chevalier, T.F. Meister, B. Heinemann, et al. Towards THz SiGe HBTs, In IEEE Bipolar
Florina Stefania Rus, Stefan Danica Novaconi, Paulina Vlazan and Madalina Ivanovici
The effect of germanium trapezoidal profile shape on the direct current (DC) current gain (βF), cut-off frequency (fT) and maximum oscillation frequency (fMAX) of silicon-germanium (SiGe) hetero-junction bipolar transistors (HBTs) has been investigated. The energy balance (EB), hydrodynamic (HD) and drift-diffusion (DD) physical transport models in SILVACO technology computer aided design (T-CAD) simulator were used. It was found that the current gain values using energy balance model are higher than hydrodynamic and much higher than those corresponding to drift-diffusion. Moreover, decreasing the germanium gradient slope towards the collector side of the base enhances the maximum oscillation frequencies using HD and EB models whilst, they remain stable for DD model.
The paper focuses on key aspects of scientific and techno- logical solutions implemented in the joint project of NASA and General Motors, Robonaut 2, a humanoid robot designed to work in space as a real assistant to astronauts.
We study the problem of the motion of substance in a channel of a network for the case of channel having two arms. Stationary regime of the flow of the substance is considered. Analytical relationships for the distribution of the substance in the nodes of the arms of the channel are obtained. The obtained results are discussed from the point of view of technological applications of the model (e.g., motion of substances such as water in complex technological facilities).
Georgi Evt. Georgiev, Sasho Popov, Valentin Manolov, Rositsa Dimitrova and Pavel Kuzmanov
Meeting, Investment Casting Institute, 1992, 880-887.
 Popov, J. Criteria Functions for Porosity Prediction in Low-Pressure Aluminium Alloy Castings. Journal of Material Science and Technology, 1 (2002), 59-70.
 K onovalov , E. G., V. A. S idorenko , A. V. S oush . Progressive Schemes of Rotational Cutting of Metals, Minsk, Science and Technology, 1982, 272p.
 V ilner , G. S. To the Problem of Determining the Shear Angle when cutting Metals, Proceedings of High Schools, Mechanical Engineering, 2000, No. 5-6 , 95-100.
 W ilner , G. S. Mechanism of the Formation of a Hardened Surface Layer in the Processing of Metal by cutting, Technology of Mechanical Engineering, All-Russian Institute of Scientific and Technical Information No. 6
I.V. Kolesnikov, V.V. Bardushkin and Ph.V. Myasnikov
Content of Ultradispersed Diamonds on the Properties of Composites Based on Aromatic Polyamide. Pore-Depleting and Metal-Working Tools – Techniques and Technology of Its Production and Application, Kiev, Institute of Super Hard Materials named after V. N. B akulya , National Academy of Sciences of Ukraine, 2009, No. 12 , 336-34 (in Russian).
 K ozlov , G. V., D. S. S anditov . Anharmonic Effects and Physical and Mechanical Properties of Polymers, Novosibirsk, Science, 1994, 261 p. (in Russian).
 P hysical values . A Reference Book, Ed. I. S. G
Adhesive joints are frequently used in different composite structures due to their improved mechanical performance and better understanding of the failure mechanics. The application of such structures can be seen in aerospace and high technology components. The authors developed and applied modified shear lag analysis to investigate the hygrothermalpiezoelectric response of a smart single lap joint at environmental conditions (with/without an interface gap along the overlap zone) and under dynamic time harmonic mechanical and electric loads. The main key is the study of the appearance of possible delamination along the interface. As illustrative examples, the analytical closed form solution of the structure shear and the axial stresses response, as well as the interface debond length, including influence of mechanical, piezoelectric, thermal characteristics and frequencies is performed and discussed. All results are presented in figures. The comparison of the shear stress and electric fields for both cases of overlap zone (continuous or with a gap) is also shown in figures and discussed.