Background: Atopic dermatitis is a chronic, recurrent inflammation of the skin, accompanied by severe pruritus. Immune system dysregulation and skin barrier defects are associated with the abnormalities in atopic dermatitis. Myriad pieces of evidence have pointed to the major roles of LL-37 and interleukin-31 (IL31)in atopic dermatitis. The studies on atopic dermatitis are still limited i...

This paper presents the radiation characteristics of a circularly polarized conical beam spherical slot array antenna for applying to the mobile satellite communication subscriber. The structure of the antenna is easy to fabricate i.e., a ring of perpendicular slot pairs cut on an outer surface of a concentric conducting spherical cavity enclosed by the conducting conical surface with the simpl...

(ABSTRACT) This dissertation proposes analytic tools for dynamics and control problems in the perspective of large-scale relative motion without perturbations. Specifically, we develop an exact and efficient analytic solution of satellite relative motion using a direct geometrical approach in spherical coordinates. The resulting solution is then transformed into general parametric equations of ...

Due to its high-performance broadcast capability, -ary phase-shift-keying (MPSK) direct sequence code division multiple access (DS/CDMA) technique is widely used in terrestrial and satellite communications to provide wired/wireless services such as audio broadcasting, video broadcasting and high-speed data transmission. However, both coherent and noncoherent MPSK modulation schemes are sensitiv...

Abstract—This paper presents the effect of the orbit inclination on the pointing error of the satellite antenna and consequently on its footprint on earth for a typical Kuband payload system. The performance assessment is examined using both analytical simulations and practical measurements, taking into account all the additional sources of the pointing errors, such as East-West station keeping...

Tracking climate variables at the levels of precision and accuracy required to detect global change requires satellite sensors to make highly consistent measurements that can be compared to measurements made at different times and with different instruments. Gaps in climate data records, such as those resulting from launch delay or instrument failure, and inconsistencies in radiometric scales b...

This paper proposes a novel method to deal with the tracking of feature points on occluding boundaries. It can distinguish the feature points on occluding boundaries from those inside the boundaries. It can detect the disappearance of a feature point caused by occlusion during the tracking. It can extract a newly appeared feature point suitable to tracking. For the purpose, we combined an adapt...

The regional service of the Chinese BeiDou satellite navigation system is now in operation with a constellation including five Geostationary Earth Orbit satellites (GEO), five Inclined Geosynchronous Orbit (IGSO) satellites and four Medium Earth Orbit (MEO) satellites. Besides the standard positioning service with positioning accuracy of about 10 m, both precise relative positioning and precise...

Nowadays, within the space robotics, there is a substantial interest in achieving on-orbit satellite servicing operations autonomously. On-orbit servicing (OOS) requires ability to rendezvous and dock by an unmanned spacecraft minimizing human intervention. This paper is presented like a step in this course. In RoboticsLab, we have developed the RISANAR testbed to simulate scenarios of autonomo...

Chinese BeiDou Navigation Satellite System is officially operational as a regional constellation with five Geostationary Earth Orbit (GEO) satellites, five Inclined Geosynchronous Satellite Orbit (IGSO) satellites and four Medium Earth Orbit (MEO) satellites. Observations from the BeiDou Experimental Tracking Stations (BETS) and the IGS Multi-GNSS Experiment (MGEX) network from 1 January to 31 ...