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Achieving Ultra‐High Heat Flux Transfer in Graphene Films via Tunable Gas Escape Channels
Published 2025-01-01“…After optimization, graphene films with ultra‐high thermal conductivity (1781 W m−1 K−1) and a thickness over 100 µm are realized. …”
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623
Influence of Distribution Modulus on the Compressive Strength of Ultra-High-Performance Concrete with Coarse Aggregate (UHPC-CA)
Published 2022-01-01“…The Modified Andreasen and Andersen model (MAA model) is commonly chosen to realize condensed particle packing in ultra-high-performance concretes (UHPCs). In the MAA model, the q (distribution modulus) is a parameter that plays a critical role in the UHPC matrix design. …”
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624
Rhodium‐Alloyed Beta Gallium Oxide Materials: New Type Ternary Ultra‐Wide Bandgap Semiconductors
Published 2025-01-01Subjects: Get full text
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625
Performance of Cracked Ultra-High-Performance Fiber-Reinforced Concrete Exposed to Dry-Wet Cycles of Chlorides
Published 2021-01-01“…This paper presents an experimental study on the performance of cracked ultra-high-performance fiber-reinforced concrete (UHPC) exposed to dry-wet cycles of 3.5% NaCl solution under the temperature of 60°C. …”
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626
Spectral clustering-based energy-efficient resource allocation algorithm in heterogeneous cellular ultra-dense network
Published 2021-07-01“…In order to solve problems of high power consumption, spectrum shortage and low energy efficiency in the ultra-intensive 5G mobile communication scenario, a resource allocation algorithm based on the maximum energy efficiency for the two-layer heterogeneous cellular non-orthogonal multiple access network was proposed.The original NP-hard optimization problem on the downlink communication link of ultra-dense scene was divided into two subproblem, such as frequency resource allocation and power allocation, which became a deterministic constraint optimization problem.The frequency resource allocation scheme of different user groups was obtained by using base station clustering based on the improved k-means algorithm and users grouping based on spectral clustering algorithm.The fraction of energy efficiency optimization was transformed into a solvable continuous convex optimization problem and power distribution was realized by Dinkelbach method, and the Lagrange multiplier iterative algorithm, respectively.Jointly optimize system energy efficiency in terms of base station clustering, user grouping, resource block allocation and power allocation, which minimized the inter-cluster interference and intra-cluster interference of the base station efficiently.The simulation results show that the proposed algorithm is better on energy efficiency and computational efficiency compared with existing algorithms.…”
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627
Inscribed Fibonacci Circle Fractal in a Circular Radiator for Ultra-Wideband Antenna Operation and Size Reduction
Published 2019-01-01“…In this article, a Fibonacci circle fractal is inscribed into a circular radiator in order to provide ultra-wideband behavior as well as a 50% size reduction compared to a conventional circular monopole. …”
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628
Structural Changes of Myofibrillar Proteins in Marinated Duck Drumsticks during Ultra-high Pressure Processing Treatment
Published 2025-01-01Subjects: “…ultra-high pressure…”
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629
Ultra-small phospholipid nanoparticles in the treatment of combined hyperlipidemia: a randomized placebo-controlled clinical trial
Published 2024-12-01“…This clinical trial investigated phospholipovit (essential phospholipids, Institute of Biomedical Chemistry, Moscow, Russia), an ultra-small phospholipid nanoparticle (micelles), targeted to phospholipids of HDL in lowering non-HDL-cholesterol (non-HDL-C) and triglycerides (TG) levels in patients with combined hyperlipidemia and moderate cardiovascular risk. …”
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630
Advanced optical receiver architectures for ultra-high capacity but low-cost short-reach optical interconnects
Published 2022-07-01“…The deployment of emerging network infrastructure such as hyper-scale datacenters urgently requires ultra-high capacity but low-cost short-reach optical interconnects.Conventional intensity modulation and direct detection possesses a simple receiver structure but can only recover the intensity information, which restrains the capability of further scaling up the system capacity.Standard coherent detection can deliver high-order modulation formats and achieve high-capacity transmission.Nevertheless, the coherent transceiver requiring expensive narrow-linewidth laser sources and computation-intensive digital signal processing precludes its wide applications in short-reach systems.The advanced direct-detection optical receivers aim to combine the advantages of both direct detection and coherent detection and bridge the gap between them.Therefore, the advanced optical receivers are mainly based on self-coherent detection.Advanced single-polarization, dual-polarization, and few-mode optical receiver architectures wereintroduced.The proposed advanced optical receivers can retrieve the optical field via direct detection without using the narrow-linewidth lasers, which enables the realization of ultra-high capability but low-cost short-reach optical interconnects.…”
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Ultra-Wideband Indoor Channel Modelling Using Ray-Tracing Software for through-the-Wall Imaging Radar
Published 2010-01-01“…The first part describes the evolution of a ray tracing simulator, originally designed for propagation of narrowband signals, and then for ultra-wideband signals. This simulator allows to obtain temporal channel response to a wide-band emitter (3 GHz to 10 GHz). …”
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632
A Numerical and Theoretical Investigation of the Flexural Behavior of Steel–Ultra-High-Performance Concrete Composite Slabs
Published 2025-01-01Subjects: “…ultra-high-performance concrete (UHPC)…”
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Virtual cell forming algorithm based on interference fair and multi-dimensional cooperation for ultra-dense network
Published 2017-09-01Subjects: “…ultra-dense network…”
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635
Improvement of mechanical properties of railway track concrete sleepers using ultra high performance concrete (UHPC)
Published 2022-04-01Subjects: Get full text
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Technical research of a new type of optical fibre with ultra-low-loss and large effective area
Published 2020-12-01Subjects: “…ultra-low-loss…”
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Shaking Table Array Tests of an Ultra-High-Voltage Cup-Type Transmission Tower-Line System
Published 2019-01-01“…Ultra-high-voltage (UHV) cup-type transmission towers supported with long-span transmission lines are unavoidably subjected to the coupling action between the towers and the transmission lines. …”
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ANALYSIS ON CAGE TEMPERATURE FIELD AND STRENGTH OF ANGULAR CONTACT BALL BEARING IN ULTRA-LOW TEMPERATURE ENVIRONMENTS
Published 2022-01-01Subjects: “…Ultra-low temperature…”
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640
100 nm AlSb/InAs HEMT for Ultra-Low-Power Consumption, Low-Noise Applications
Published 2014-01-01“…This demonstrates the great ability of AlSb/InAs HEMT for high-frequency operation combined with low-noise performances in ultra-low-power regime.…”
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