On the Interference Alignment Designs for Secure Multiuser MIMO Systems

In this paper, we propose two secure multiuser multiple-input multiple-output transmission approaches based on interference alignment (IA) in the presence of an eavesdropper. To deal with the information leakage to the eavesdropper as well as the interference signals from undesired transmitters (Txs) at desired receivers (Rxs), our approaches aim to design the transmit precoding and receive subspace matrices to minimize both the total inter-main-link interference and the wiretapped signals (WSs). The first proposed IA scheme focuses on aligning the WSs into proper subspaces while the second one imposes a new structure on the precoding matrices to force the WSs to zero. When the channel state information is perfectly known at all Txs, in each proposed IA scheme, the precoding matrices at Txs and the receive subspaces at Rxs or the eavesdropper are alternatively selected to minimize the cost function of an convex optimization problem for every iteration. We provide the feasible conditions and the proofs of convergence for both IA approaches. The simulation results indicate that our two IA approaches outperform the conventional IA algorithm in terms of average secrecy sum rate.Comment: Updated version, updated author list, accepted to be appear in IEICE Transaction

Determination of Fluoroquinolone antibiotics in sludge matrix using pressurized liquid extraction technique combined with high performance liquid chromatography/fluorescence detection

Joint Research on Environmental Science and Technology for the Eart

Implementation of FOC algorithm using FPGA for GaN-based three phase induction motor drive

Induction motor is widely used in industrial applications due to its low cost, simple design, and reliability. In this paper, the induction motor control structure FOC will be implemented on the FPGA platform for the drive system using GaN devices. By using GaN technology, the switching frequency can be up to 100 kHz instead of 2 to 20 kHz when using IGBT transistors. It leads to a significant reduction in switching loss as well as increasing the power density of the power electronic converter. The control structure will be programmed in VHDL language on the system-on-chip environment of Xilinx Zybo z7010 FPGA development board. The validity of the research is verified by some results when operating with HIL device

A review of César Hildago’s Why information grows: How our economy revolves around the crystals of imagination

In Why Information Grows, the complexity researcher César Hildago provides a compelling account of the growth of information in the universe [1]. Drawing on wide-ranging theories of statistical mechanics, the field of economic sociology, the theory of social capital, and the emerging science of complexity economics, Hildago argues information can grow in the universe whose law seems to favor the growth of entropy because of the following three conditions: out-of-equilibrium systems, solids, and the computational abilities of matters. These conditions are the foundation for the emergence of the ultimate computer, human economy, which can be viewed as a distributed computing networks that seek to generate embodiment of information (“crystals of imagination” (p.50)) that satisfy human needs and desires. First: Just listen to scientific news, but the environmental intelligence birds must keep the information simple. Throw away anything that sounds too complicated. Only keep what is simple to grasp. Keep whatever news that seems friendly to the ears. If the information appears fuzzy and causes the brain to implode after two sentences, toss it away and stop listening. Doing so will make the news as orderly and simple to understand as the truth! -In GHG emissions, Wild Wise Weird: The Kingfisher Story Collection, Vuong (2025) [0]

How Peripersonal space shapes sense of self and implications for technological applications

The concept of the self has been central to both psychological and philosophical discourse, with recent developments emphasizing the 4E approach—embodied, embedded, enacted, and extended cognition. Peripersonal space (PPS), defined as the immediate space surrounding the body, serves as a critical interface between the individual and the external environment, facilitating action and perception. Despite its significance, the role of PPS in shaping various aspects of the self remains underexplored. This article examines how perception within PPS influences different dimensions of the self. That is to say, it affects the narrative self and bodily self through its impact on autobiographical and procedural memory, respectively. Additionally, PPS perception contributes to the minimal self by influencing the sense of bodily ownership. Moreover, this understanding offers significant implications for technological applications. On the one hand, it reveals methods by which individuals' memories and sense of self can be influenced through the manipulation of peripersonal perception. On the other hand, it underscores the role of technology in prompting a reevaluation of the concept of self

Toward a pluralism of perspectives on AI – A book review of “Imagining AI: How the World Sees Intelligent Machines”

Imagining AI: How the World Sees Intelligent Machines edited by Stephen Cave and Kanta Dihal (2023) was published as a result of the Global AI Narratives (GAIN) project of the Leverhulme Center for the Future of Intelligence, University of Cambridge. The book has 25 chapters grouped into four parts, corresponding to different geographical regions: Europe; the Americas and Pacific; Africa, Middle East, and South Asia; East and South East Asia. All chapters contributed comprehensively to the mission of showing “the imaginary of intelligent machines is an incredibly rich site for exploring” and how the imaginaries shape the ways “different cultures reconcile the demands of being human in a technological age.

Một Số Điểm Tương Đồng Và Khác Biệt Trong Tư Tưởng Triết Học Của Maurice Merleau – Ponty Và Trần Đức Thảo

Maurice Merleau – Ponty is a French philosopher and political activist with close ties to Tran Duc Thao. The two not only had a relationship between teachers and students and colleagues at the ENS Paris - where Tran Duc Thao studied and worked, but also participated in the magazine Les Temps modernes. Merleau - Ponty's thought is therefore one of the sources of thought that has a great influence on Tran Duc Thao's philosophy. However, Tran Duc Thao's philosophical views, in phenomenology, dialectical materialism and in socio-political concepts, have striking similarities and differences with Merleau - Ponty's thought

JAXA Annual Forest Cover Maps for Vietnam during 2015?2018 Using ALOS-2/PALSAR-2 and Auxiliary Data

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