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High-resolution radio continuum observations of the southern H II complex RCW 49 are presented. The observations were carried out with the Molonglo Observatory Synthesis Telescope (MOST) at 0.843 GHz, and the Australia Telescope Compact Array (ATCA) at 1.38 and 2.38 GHz. Two wind-blown shells have been discovered in the core region of RCW 49, the more massive of which surrounds the Westerlund 2...

Allergic rhinitis (AR) is a common, frequently occurring disease with increasing incidences every year. House dust mite is one of the common indoor allergens that causes allergic rhinitis. So this study was aimed to evaluate the efficacy and safety of Allergopharma house dust mite vaccine in the treatment of allergic rhinitis. A case self-control method was used to compare the total symptom usi...

A search for novae in M49 (NGC 4472) has been undertaken with the Hubble Space Telescope. A 55-day observing campaign in F555W (19 epochs) and F814W (five epochs) has led to the discovery of nine novae. We find that M49 may be under-abundant in slow, faint novae relative to the Milky Way and M31. Instead, the decline rates of the M49 novae are remarkably similar to those of novae in the LMC. Th...

SHACAL-1 is a 160-bit block cipher with variable key length of up to 512-bit key based on the hash function SHA-1. It was submitted to the NESSIE project and was accepted as a finalist for the 2nd phase of the evaluation. In this paper we present rectangle attacks on 49 rounds out of the 80 rounds of SHACAL-1. The attacks require 2 chosen plaintexts or ciphertexts and have time complexity of 2 ...

Sensor misalignment is often a key consideration for high performance motion control systems that use MEMS inertial measurement units (IMUs) in their feedback loops. For the gyroscopes in the IMU, sensor misalignment describes the angular difference between each gyroscope’s axis of rotation and the system defined inertial reference frame, also known as the global frame. Managing the impact that...

Used in a wide range of industrial, automotive, and commercial applications, electric motors are controlled by drives that vary the electrical input power to control the torque, speed, and position. High-performance motor drives can increase efficiency and deliver faster, more accurate control. Advanced motor-control systems combine control algorithms, industrial networks, and user interfaces, ...