Study on outage performance gap of two destinations on CR-NOMA network

Non-orthogonal multiple access (NOMA) and cognitive radio (CR) are promising for solving the severe spectral scarcity problem encountered by the next generation of wireless communication systems. This study aims to improve spectral efficiency at two secondary destinations by investigating a CR-NOMA network under situation of the perfect successive interference cancellation (SIC). We also derive the exact outage probability for secondary users. Furthermore, an approximate computation method is applied to indicate more insights. It is confirmed that the performance achieved together with performance gap among two users can be obtained due to different power allocation factors assigned to users

Desarrollo de la presión del sujetador: Sistema de medición con aire y sensor de presión

Introduction: This paper is the result of the research “Development of bra pressure measuring system using air pressure sensor” developed in the Ha Noi University of Science and Technology in 2019.  Proplem: The pressure of the bra on the human body affects the comfort of the wearer and the wearer's health. Therefore, bra pressure is one of the most important parameters taken into account when designing and manufacturing bras. Objective: To determine the pressure value of a bra, it is necessary to use a suitable pressure measuring device. Methodology: The device operates on the principle of resitive gas pressure sensor, with 8 measuring channels. The system is controlled by the computer via programming software in the Visual C language, measuring the pressure of the shirt on the position on the curved surface of the human body. Pressure values ​​and timed charts are displayed on the computer. The measuring device was tested with GE Druck DPI 610 pressure generator.  Results: Test results showed that the device has a sensitivity of 0.01 kPa, measuring range from 0.1to 10 kPa and an accuracy of 0.01 kPa. Conclusion: This measurement system is important for objectively assessing the pressure of the bra on the wearer.  Originality: This paper presents the results of research and design of the PB228 system when measuring the pressure of the bra on the wearer's body in static, dynamic and static-dynamic combined states.  Limitations: The accuracy of the device only applies in standard condition

IncepSE: Leveraging InceptionTime's performance with Squeeze and Excitation mechanism in ECG analysis

Our study focuses on the potential for modifications of Inception-like architecture within the electrocardiogram (ECG) domain. To this end, we introduce IncepSE, a novel network characterized by strategic architectural incorporation that leverages the strengths of both InceptionTime and channel attention mechanisms. Furthermore, we propose a training setup that employs stabilization techniques that are aimed at tackling the formidable challenges of severe imbalance dataset PTB-XL and gradient corruption. By this means, we manage to set a new height for deep learning model in a supervised learning manner across the majority of tasks. Our model consistently surpasses InceptionTime by substantial margins compared to other state-of-the-arts in this domain, noticeably 0.013 AUROC score improvement in the "all" task, while also mitigating the inherent dataset fluctuations during training

Group Scheduling for MultiChannel in OBS Networks

Group scheduling is a scheduling operation of optical burst switching networks in which the burst header packets arriving in each timeslot will schedule their following bursts simultaneously. There have been many proposals for group scheduling (such as OBS-GS, MWIS-OS and LGS), but they consider mainly to schedule the arriving bursts which have the same wavelength on an output data channel. Another suggestion is GreedyOPT which considers the group scheduling for multichannel with the support of full wavelength converters, but it is not optimal. This article proposes another approach of group scheduling which is more optimal and has a linear complexity

Mobility Enhancement in Square Quantum Wells: Symmetric Modulation of the Envelop Wave Function

We present a theoretical study of the effects from symmetric modulation of the envelop wave function on quantum transport in square quantum wells (QWs). Within the variational approach we obtain analytic expressions for the carrier distribution and their scattering in symmetric two-side doped square QWs. Roughness-induced scattering are found significantly weaker than those in the asymmetric one-side doped counterpart. Thus, we propose symmetric modulation of the wave function as an efficient method for enhancement of the roughness-limited QW mobility. Our theory is able to well reproduce the recent experimental data about low-temperature transport of electrons and holes in two-side doped square QWs, e.g., the mobility dependence on the channel width, which have not been explained so far

The Channel-width Dependence of the Low-temperature Hole Mobility in Ge-rich Narrow Square Quantum Well Studied by the Band-bending Method

We employ the theory of band-bending effects to explain the channel-width dependence of the mobility of a two-dimentional hole gas (2DHG) in narrow square Si/Si$_{1-x}$Ge$_x$/Si quantum well at high Ge content. The numerical calculation of scattering mechanisms is shown in comparison with the ones from the previous computations. Our method enables a better quantitative description of recently measured data about the dependence of the 8 K mobility of holes in a Si/Si$_{0.2}$Ge$_{0.8}$/Si quantum well on the channel width varying from 25 - 70

Enhancing the capacity of tax authorities and its impact on transfer pricing activities of FDI en-terprises in Ha Noi, Ho Chi Minh, Dong Nai, and Binh Duong province of Vietnam

This study aims at discovering the relationship between the improvement in the capacity of tax authorities and its effect on the transfer pricing activities of foreign direct investment (FDI) enterprises in four provinces/cities of Vietnam: Ha Noi, Ho Chi Minh, Dong Nai, and Binh Duong province. These are the first localities in Vietnam to establish the Division of Transfer Pricing Inspectorate in local Tax Department, under the direction of General Department of Taxation of Vietnam. The paper then proposes a further study on how the tax authorities of Vietnam should improve their capacities to make FDI enterprises more compliant with the transfer pricing regulations in Vietnam. The authors deploy the method of quantitative research through collecting self-administered closed format questionnaires from people in charge of finance/accounting/transfer pricing of FDI enterprises operating in Ha Noi, Ho Chi Minh, Dong Nai, and Binh Duong province of Vietnam. The findings suggest that there was a strong probability that the capacity of tax authorities would impact on the transfer pricing activities of FDI enterprises in Ha Noi, Ho Chi Minh, Dong Nai, and Binh Duong of Vietnam. Vietnamese Government should enhance the capacity of the tax authorities; establish Transfer Pricing Inspectorate Division in all local Tax Departments of Vietnam. The authors believe that the improvement of tax officials’ capacity especially those in charge of transfer pricing auditing will prevent the FDI enterprises from transfer pricing manipulation, hence these enterprises will be more compliant to transfer pricing regulations of Vietnam. The most significant value of the study is to support Vietnamese policymakers, especially those in the field of Finance (Ministry of Finance, General Department of Taxation) to improve their capacity when carrying out transfer pricing audit in FDI enterprises. The more transparent and aggressive the tax officials are, the better these enterprises follow the regulations