We report an optical photometric survey of 0.89 deg of the Orion OB1b association centered on Ori. This region includes most of the Ori cluster, the highest-density region within Orion OB1b. We have developed a statistical procedure to identify the young, low-mass, pre–main-sequence population of the association. We estimate that the cluster has 160 members in the mass range (0:2 M 1:0 M ). The...

A novel algorithmic method for weaving design is presented, inspired by the recently discovered AA Fractals. The method is capable of producing a weaving pattern from any binary sequence or pair of sequences. All generated patterns can be woven in the simplest (4-shaft) dobby looms. An algorithm for generating input binary sequences is also presented, and the sequences produced by this algorith...

We present deep 3.6 cm radio continuum observations of the H II region NGC 2024 in Orion B obtained using the Very Large Array in its A-configuration, with 0. 2 angular resolution. We detect a total of 25 compact radio sources in a region of 4 × 4. We discuss the nature of these sources and its relation with the infrared and X-ray objects in the region. At least two of the radio sources are obs...

The main purpose of this research is to develop T-joints between the aluminum AA 2024-T4 and 7075-T6 using friction stir welding. effect tool geometries, traveling speed, rotational rate in welded were investigated discussed. Three different tools used with shoulder pin ratios 3.28, 3.36, 4.31. After optimization, best dimension has welding speeds. traverse speeds 50, 75, 100 mm/min used. Two r...

This paper questions the extent to which current critical engagements with postcolonial realities may exhibit an exoticising tendency they simultaneously decry as colonialism’s orientalist reflex. Contemporary instances of the exoticization of the “other”, however, are not necessarily the result of a practice of cultural translation that becomes ‘the superimposition of a dominant way of seeing,...

This work investigates the influence of Friction Riveting processing conditions on FR4-PCB substrate/AA2024 rivet joints in terms process temperature evolution, joint formation, and physical-chemical mechanical properties. The were manufactured using 4 mm diameter AA-2024-T3 rivets FR4 laminates 1.5 thickness with single or double copper-clad layers. evolution was recorded substrate surface cor...