Second-order sensitivity analysis of multibody systems described by differentialz/algebraic equations: adjoint variable approach Jie-Yu Ding ab; Zhen-Kuan Pan b; Li-Qun Chen ac a Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai, P.R. China b College of Information Engineering, Qingdao University, Qingdao, P.R. China c Department of Mechanics, Shanghai Unive...

We consider an economy made of competing firms which are heterogeneous in their capital and use several inputs for producing goods. Their consumption policy is fixed rationally by maximizing a utility cannot fall below given threshold (state constraint). aim at modeling the interactions between on markets different long term. The stationary equlibria described system coupled non-linear differen...

We used a force-measuring laser tweezers apparatus to determine the elastic properties of lambda-bacteriophage DNA as a function of ionic strength and in the presence of multivalent cations. The electrostatic contribution to the persistence length P varied as the inverse of the ionic strength in monovalent salt, as predicted by the standard worm-like polyelectrolyte model. However, ionic streng...

As early as 1901, DeLee described a hemophilic-like condition of the blood in abruptio. Dieckmann in 1936, studying a group of patients with abruptio, found fibrinogen concentration below the normal levels in seven out of eleven cases, and in three where the fibrinogen level was below 50 mg./100 c.c. During the past few years hypofibrinogenemia has been shown to exist in other conditions apart ...

Based on symbolic manipulation program Maple and using Riccati equation mapping method several explicit exact solutions including kink, soliton-like, periodic and rational solutions are obtained for (2+1)-dimensional variable coefficient Broer-Kaup system in quite a straightforward manner. The known solutions of Riccati equation are used to construct new solutions for variable coefficient Broer...