Learn More
BACKGROUND Aplastic anemia (AA) is characterized by pancytopenia and bone marrow hypoplasia, which results from immune-mediated hematopoiesis suppression. Understanding the pathophysiology of the immune system, particularly T cells immunity, has led to improved AA treatment over the past decades. However, primary and secondary failure after(More)
With the rapid development of network, the application of wireless network is used more and more widely. This paper introduces the network architecture and characteristics of Mesh, and the differences between traditional wireless network, and then according to practical construction situation of wireless network in Zhejiang Gongshang University, describes(More)
The non-negative matrix factorization (NMF) algorithm is a classical matrix factorization and dimension reduction method in machine learning and data mining. However, in real problems, we always have to run the algorithm for several times and use the best matrix factorization result as the final output because of the random initialization of the matrix(More)
—With the explosive growth of smart devices and mobile data traffic, limited fronthaul capacity has become a notable bottleneck of green communication access networks, such as cloud radio access networks(C-RANs). In this paper, we proposed a joint user association and downlink beamforming scheme for green C-RANs to minimize the network power consumption(More)
This paper theoretically explores how exchange rate pass-through depends on firm heterogeneity in productivity and product differentiation in quality. Using an extended version of the Melitz and Ottaviano (2008) model, I show that exporting firms absorb exchange rate changes by adjusting both their markups and product quality, which leads to an incomplete(More)
Aiming at MIMO-OFDM wireless communication system, we propose a simple and effective space-frequency coding algorithm: time-domain cycle delay algorithm, which implements space-frequency coding using the cycle delay of OFDM time-domain signal. The academic analysis and computer simulations indicate that this kind of space-frequency coding algorithm not only(More)
In order to solve the bottleneck problem of the downlink capacity of the third generation mobile communications system, MIMO schemes become more and more important in HSDPA. We propose a novel channel estimation method for MIMO system under mobile deep-fading environment. We present the detailed theoretical deduction and simulation results.
Mesh topology has been actively researched and developed as a key solution to improve the performance and services of wireless communications. To take full advantage of wireless mesh networks, a hierarchy mesh topology, which includes a fixed backbone network and mobile access networks, is presented in this paper. To achieve the optimum performance at a low(More)