Channel model

This paper evaluates an energy harvesting strategy for UAVs from sunlight and laser beams on cloudy days with a low-level cloud layer. The channel models and harvested powers for both cases are considered and analyzed using mathematical equations and simulation results.

7p vithomson 02-07-2024 1 0   Download

This paper investigates the system performance of hybrid time-power switching based relaying (TPSR) energy harvesting enabled in the multisource half-duplex relaying network over the Rayleigh fading channel. The outage probability (OP) of the proposed system model with implementing maximal ratio combining (MRC) and selection combination (SC) technique at the receiver is presented and analyzed.

8p viwalton 02-07-2024 1 1   Download

In this article, the authors introduce the "Cooperative WBANs" model, wherein sensors communicate directly with Access Points (APs) without a coordinator. They also present a power control algorithm for downlink data transmission from APs to sensors.

9p visergeyne 18-06-2024 0 0   Download

This paper is organized as follows. In Section 2, we briefly describe the model including the particle content and the symmetry. In Section 3, we focus on the scalar particles and derive their interaction terms. In Section 4, we investigate the decay channel of a new scalar to a pair of the 125 GeV Higgs bosons. Finally, the conclusion is presented in Section 5.

8p viambani 18-06-2024 4 1   Download

This article presents two methods to determine pressing forces to the M1 copper plate. The first approach employs the upper-bound method, and the second method combines numerical simulation with a central composite design. The upper-bound method uses physical analysis to determine the deformation zone and establish the division of the rigid block model. The findings were identical to the slip-line solution method.

12p viambani 18-06-2024 3 1   Download

Ebook "Tight junctions" highlight the importance of understanding TJ physiology in order to develop effective strategies for the treatment of pathological conditions such as cancer and autoimmune diseases. The first chapter of this book describes the evolution of the transporting epithelium from primitive metazoans to mammalian epithelia. Then, Chapters 2, 3, 4, 5, 6 and 7 review the characteristics and functionality of difi^erent proteins of theTJ studied in cell culture models, natural epithelia, mutant mice and heritable human diseases.

235p ladongphongthanh1008 22-04-2024 5 2   Download

Ebook "Short-channel organic thin-film transistors: Fabrication, characterization, modeling and circuit demonstration" takes advantage of high-resolution silicon stencil masks to build air-stable complementary OTFTs using a low-temperature fabrication process. Plastic electronics based on organic thin-film transistors (OTFTs) pave the way for cheap, flexible and large-area products. Over the past few years, OTFTs have undergone remarkable advances in terms of reliability, performance and scale of integration.

232p tracanhphuonghoa1007 22-04-2024 3 2   Download

This paper aims to provide insights into the factors which manufacturers must take into consideration in contemplating to setting up Internet sales channel. By using transaction cost analysis (TCA), we set up a research model, which composed of various factors which are critical to the success of Internet sales channel and elaborate the role of these factors on this issue. Subsequently, appropriate propositions are instigated and investigated in order to determine the impact of these variables on the manufacturers’ decision making in this area.

10p longtimenosee09 08-04-2024 4 0   Download

The purpose of this paper is to understand the efficiency of different distribution channels for vegetable and propose a model for improvement. Efficiency is the major indicator of the supply chain performance.

11p longtimenosee07 29-03-2024 2 2   Download

The objectives of this study are (1) to analyze supply chain flow in the highland vegetables of Karo districtand Dairi district, North Sumatra, (2) to know the optimization and risk management model of the vegetable supply chain distribution channel in Karo District, North Sumatra, and (3) analyzing the minimalism of microcos in vegetable distribution channel of the Karo Regencyand Dairi regency, North Sumatra.

8p longtimenosee07 29-03-2024 2 2   Download

Genomics enables individualized diagnosis and treatment, but large challenges remain to functionally interpret rare variants. To date, only one causative variant has been described for KCNK9 imprinting syndrome (KIS). The genotypic and phenotypic spectrum of KIS has yet to be described and the precise mechanism of disease fully understood.

19p viellison 28-03-2024 7 2   Download

Ebook "Soil mechanics and transport in porous media (Theory and applications of transport in porous media, Volume 19)" contains an overview of the most relevant scientific contributions of Gerard de Josselin de Jong to the development of both Soil Mechanics and Transport in Porous Media. The volume comprises a selection of papers by de Josselin de Jong as they were published in the international scientific literature. In addition, some unpublished, but highly relevant work has been included.

375p duongthandue0501 28-02-2024 3 1   Download

This paper proposes to extend two Least Squares (LS) channel estimation algorithms based on tensor signal model to MIMO systems supported by Intelligent Reflective Surfaces (IRS). These two algorithms exploit the tensor structure of the pilot signal to establish the cascaded channel estimation problem.

15p vigojek 02-02-2024 3 2   Download

DPF is an important device in the exhaust system of Diesel engine. In this paper we simulate velocity and pressure distributions in DPF to determine kinematic and hydraulic characteristics. This will provide the basis for designing and selecting size of channels in DPF. Numerical simulations were made using ANSYS Fluent commercial software and OpenFOAM open-source software.

11p vimarillynhewson 02-01-2024 2 1   Download

Research on the microchannel and its flow and heat transfer properties has received much attention. This study employed Autodesk Inventor software to build the model, and the Computational Fluid Dynamics software (Ansys Fluent 14) was used for numerical simulation. Taguchi analysis methods, ANOVA, and Minitab statistics testing were used.

11p vijeff 27-11-2023 8 6   Download

The book treats three major areas: first (Chapters 3, 7, and 8), an analysis of channel models and the proof of coding theorems (theorems whose physical interpretation is that it is possible to transmit information reliably through a noisy channel at any rate below channel capacity, but not at a rate above capacity); second, the study of specific coding systems (Chapters 2, 4, and 5); finally, the study of the statistical properties of information sources (Chapter 6).

345p haojiubujain08 01-11-2023 2 1   Download

Ebook "Mathematical models of distribution channels" provides a review of the mathematical modeling literature on distribution channels; evaluates that literature, offering a significant analytical extension to the existing work; addresses three central themes: channel coordination; vertical integration vs. decentralization; and the unique aspects of franchizing.

590p loivantrinh 29-10-2023 6 2   Download

Continued part 1, part 2 of ebook "Tourism theory: Concepts, models and systems" provides readers with contents including: the tourist; intermediation, distribution and travel; the tourism destination; determinant and motivational factors; crompton’s destination-choice model; traveller typologies; tourism distribution channels; multi-destination travel pattern models; tourism services and facilities; tourism infrastructure; lodging establishments;...

121p dangsovu 20-10-2023 7 4   Download

An image transmission underwater communications system has been researched and developed during the past years due to its potential applications in life, military, oil exploitation, and transportation. In this brief report, a study on the effect of the modulation method on the image communication through the underwater acoustic channel was performed.

9p vifriedrich 06-09-2023 6 4   Download

Part 1 book "MIMO-OFDM wireless communications with Matlab R" includes content: The wireless channel - Propagation and fading, SISO channel models, MIMO channel models, introduction to OFDM, synchronization for OFDM, channel estimation.

226p oursky02 07-08-2023 9 5   Download