Junbo Zhang,1,† Tianrui Li,1,∗ Da Ruan,2,3,‡ Dun Liu4,§ School of Information Science and Technology, Southwest Jiaotong University, Chengdu 610031, People’s Republic of China Belgian Nuclear Research Centre (SCK•CEN), Boeretang 200, 2400 Mol, Belgium Department of Applied Mathematics & Computer Science, Ghent University, 9000 Gent, Belgium School of Economics and Management, Southwest Jiaotong...

Central-place foraging insects such as desert ants of the genus Cataglyphis use both path integration and landmarks to navigate during foraging excursions. The use of landmark information and a celestial system of reference for nest location was investigated by training desert ants returning from an artificial feeder to find the nest at one of four alternative positions located asymmetrically i...

In studies of potential wind energy, knowing statistical distribution direction provides useful information in making predictions and gives a better understanding the behavior direction. Malaysia experiences two monsoon seasons per year, namely Southwest Monsoon Northeast this paper, our interest is to investigate whether data can be modelled using replicated LFRM with von Mises distribution. T...

Characterizing urban expansion patterns is of great significance to planning and decision-making for agglomeration development. This study examined the in entire Yangtze River Delta Region (YRDR) with its land-use data six years (1995, 2000, 2005, 2010, 2015, 2018). On basis traditional methods, we comprehensively considered four aspects agglomeration: speed, difference, direction, landscape pa...

Atmospheric precipitation during cyclonic situations was analyzed using weather types classification. Based on data from the period 1991 to 2015, observed were in terms of their frequency days with a given type. Cyclonic airflow direction west and northwest, north northeast, east southeast, south southwest analyzed. We identified declining number that can be classified as situations. The distri...

New observations of the neutral hydrogen (Hi) in and around the line of sight of the Sculptor dwarf spheroidal (dSph) are presented. The data obtained with the single-dish Parkes telescope cover a large area of 7 × 7 in the direction of the dwarf, and have resolutions of 15.5 × 1.12 km s. The Australia Telescope Compact Array was used to map a smaller area of 2. 2 × 2. 2 centered on the directi...

Rapid urban expansion resulting in increased impervious surfaces causes a series of urban environmental problems, e.g., the urban heat island and urban forest fragmentation. Urban expansion is a serious threat to human quality of life and living environments. It has been studied from a variety of aspects, but its driving factors and time series expansion characteristics (i.e., expansion intensi...

Comparisons are made between horizontal wind measurements carried out using a VHF-radar system at Aberystwyth (52.4°N, 4.1°W) and radiosondes launched from Aberporth, some 50 km to the southwest. The radar wind results are derived from Doppler wind measurements at zenith angles of 6° in two orthogonal planes and in the vertical direction. Measurements on a total of 398 days over a 2-year period...

In this paper, a reduced-rank scheme with joint iterative optimization is presented for direction of arrival estimation. A rank-reduction matrix and an auxiliary reduced-rank parameter vector are jointly optimized to calculate the output power with respect to each scanning angle. Subspace algorithms to estimate the rank-reduction matrix and the auxiliary vector are proposed. Simulations are per...