Aiming at solving the control problem caused by large-scale change of Hypersonic Glide Vehicle (HGV) parameters, this paper proposes a design method backstepping variable structure attitude controller based on Nonlinear Extended State Observer (NESO), with characteristics HGV model and idea uncertainty estimation compensation associated. Firstly, second-order NESO is studied. Due to large numbe...

BACKGROUND GB virus C (GBV-C) or hepatitis G virus (HGV) is a newly discovered and enveloped RNA positive-stranded flavivirus-like particle, which has not yet been proven to have major negative effects on liver. OBJECTIVES Increasing the risk of blood-borne infections in hemodialysis patients is a main health care concern in different countries. Therefore, it is important to estimate the prev...

Lymphoma is a common hematological malignancy. Hepatitis viruses, especially hepatitis B and hepatitis C, are known risk factors for development of non-Hodgkin lymphomas. However, there are a number of patients with hepatitis in whom no virus can be identified and it was therefore postulated that there may be other agents which may be causing hepatitis. Many new hepatitis viruses have indeed be...

To study the existence of GB virus C/hepatitis G virus (GBV-C/HGV) variants with different tropism, we have analyzed the heterogeneity and quasispecies composition of GBV-C/HGV isolated from in vitro-infected peripheral blood mononuclear cells (PBMC) and from sera, livers, and PBMC from two chronically infected patients. For this purpose, the GBV-C/HGV 5' noncoding region (5'NCR) was amplified ...

Hepatitis G virus (HGV) RNA and anti-E2 glycoprotein antibody (E2Ab) seroprevalence was studied in 58 human immunodeficiency virus type 1 (HIV-1)-infected mothers (34 injecting drug users [IDUs] and 24 with risky sexual behavior [RSB]) and their children (median age, 5 days; range, 1-27). Twelve women (20.6%) were RNA- and 20 (34.4%) E2Ab-positive. Seroprevalence was similar in the IDU and RSB ...

In order to solve the problem of an uncertain initial state and big errors for hypersonic glide vehicle (HGV) tracking, a hybrid model algorithm is proposed by combining a single model algorithm with a multiple model algorithm. To develop the tracking algorithm with the Cubature Kalman filter, in every model filter the process equation is established based on the HGV aerodynamic model and the m...

This paper introduces Hypersequent GV (HGV), a modular and extensible core calculus for functional programming with session types that enjoys deadlock freedom, confluence, strong normalisation. HGV exploits hyper-environments, which are collections of type environments, to ensure structural congruence is preserving. As consequence we obtain an operational correspondence between HCP -- process b...

BACKGROUND Infection with blood-borne viruses including hepatitis C (HCV) and hepatitis G (HGV) viruses is a substantial health problem. Varying prevalences of these infections in different studies reflect the role of predisposing risk factors in different countries or even different regions of a country. OBJECTIVES The objective of the present survey was to assess the prevalences of HCV and ...