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1461
Mechanism Analysis and Parameter Optimization of Mega-Sub-Isolation System
Published 2016-01-01“…When the number of the isolated substructures is determined, the higher the isolated substructures, the more the energy that will be consumed by the isolation devices, and with the increase of the number of isolated substructures, the better control performance can be achieved.…”
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1462
Reconstruction of LDPC code check matrix based on random extraction at high bit error rate
Published 2023-03-01“…In order to improve the performance of the sparse check matrix reconstruction algorithm of LDPC codes at high BER, an open set recognition algorithm of the check matrix with strong fault tolerance under the condition of sufficient and insufficient number of received code words was proposed.Firstly, a new code word space was constructed by randomly extracting part bits of the code words for many times.Gaussian elimination method was used to solve the dual vector and restore the check vector in a lower dimension.Secondly, using the check vector, the proportion of error-free code groups in the received data was continuously increased by using the methods of “eliminating error code words” or“flipping the lowest unreliable bits” for iterative processing.Simulation results show that the proposed algorithm is superior to comparison algorithm under different bit error rates, different code lengths, different code rates and different number of code words.For (648,324) LDPC codes in IEEE 802.11n protocol, when the number of received code words is sufficient, the reconstruction rate of check matrix can reach more than 95% under the condition of bit error rate of 0.003.When the number of received code words is insufficient (the number of code words is 450), the reconstruction rate of check matrix can reach more than 90% under the condition of bit error rate of 0.0015.…”
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1463
Chemical Reaction Effects on the Flow of Titanium Dioxide–Water in a Mixed Convective Nanofluid along an Inclined Plate in a Porous Medium
Published 2024-01-01“…Numerical results reveal that the local Sherwood number Sh, as well as the local Nusselt number Nux, increase, whereas the local skin friction coefficient Cf decreases due to the increase in the chemical reaction parameter Krp.…”
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1464
DSMC Simulation and Experimental Validation of Shock Interaction in Hypersonic Low Density Flow
Published 2014-01-01“…When the Knudsen number is in the level of 10−4, the DSMC errors, for pressure coefficient, the Stanton number, and the scale of interaction region, are controlled within 10%.…”
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1465
Study on the Hydraulic Characteristics of Side Inlet and Outlet with Four Channels in Pumped Storage Power Station
Published 2020-01-01“…This paper studies the hydraulic characteristics of the four-channel inlet and outlet layout widely used in pumped storage power stations.The results show that:The backward distance of the middle diversion pier at the inlet contraction end is 0.8~1.1 times of the lateral distance between the two side piers,and the lateral distance between the side piers is 0.4~0.5 times of the width of the contraction end,so the hydraulic indicators of the forward and reverse flowing water at inlet meet the design specifications at the same time.The vortex flow pattern in front of the inlet is mainly related to the Reynolds number (Re).No harmful vortex appears on the upper part of the anti-vortex beam when the Re number is less than 4.5×10<sup>7</sup>,however there will be four types of non-aerated penetrating vortex as the Re number reaches 7.4×10<sup>7</sup>,and six types of the full-penetrating air-entraining vortex as the Re number reaches 1.0×10<sup>8</sup>.The head loss test of the inlet is also affected by the flow viscosity.In order to ensure that the model flow is in the resistance square area,the Reynolds number of the model should be greater than 3×10<sup>4</sup>.The above research results can serve as a reference for the design of similar projects.…”
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1466
Sensitivity Evaluation of AP1000 Nuclear Power Plant Best Estimation Model
Published 2017-01-01“…The results show that core channel number, core channel node number, and the pressurizer node number have apparent influences on the coolant temperature variation and pressure drop through the reactor. …”
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1467
MHD Analysis of Couple Stress Hybrid Nanofluid Free Stream over a Spinning Darcy-Forchheimer Porous Disc under the Effect of Thermal Radiation
Published 2021-01-01“…In the sundry physical parameters, the porosity parameter, Reynolds number, inertial parameter, Prandtl number, Schmidt number, couple stress, and quotient of rotational momentum to elongating rate are included. …”
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1468
Service Innovation of Insurance Data Based on Cloud Computing in the Era of Big Data
Published 2021-01-01“…To sum up, the insurance innovation service based on cloud computing insurance data can improve customer satisfaction, increase the number of policyholders, reduce the number of complaints, and achieve a more successful insurance service innovation. …”
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1469
Disclosures on the Sustainable Development Goals in the non-financial reports of companies listed on the Warsaw Stock Exchange
Published 2024-12-01“…The study indicates that company size, its belonging to a “sinful” industry, and the number of declared SDGs…”
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1470
Some Indices over a New Algebraic Graph
Published 2021-01-01“…In this paper, we first introduce a new graph ΓN over an extension N of semigroups and after that we study and characterize the spectral properties such as the diameter, girth, maximum and minimum degrees, domination number, chromatic number, clique number, degree sequence, irregularity index, and also perfectness for ΓN. …”
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1471
Measuring the impact introducing NHS 111 online had on the NHS 111 telephone service and the wider NHS urgent care system: an observational study
Published 2022-07-01“…Secondary outcomes: total calls to the NHS 111 telephone service, total number of emergency ambulance referrals or advice to contact 999, total number of advice to attend an emergency department or other urgent care treatment facility, and total number of advice to contact primary care.Results For triaged calls, the overall incidence rate ratio (IRR) per 1000 online contacts was 1.013 (95% CI: 0.996 to 1.029, p=0.127). …”
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1472
Variability and correlations of economically valuable traits in cowpea from the VIR collection in the environments of Astrakhan provincer
Published 2019-06-01“…Cowpea pod productivity depended to the greatest degree from mean values of the number of pods per plant (r = 0,73) and the number of peduncles (r = 0,71). …”
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1473
Diversity Assessment of Some Sesame (Sesamum indicum L.) Genotypes Cultivated in Northern Ghana Using Morphological and Simple Sequence Repeat (SSR) Markers
Published 2019-01-01“…Data on number of capsules per plant, number of seeds per capsule, and plant height at flowering were subjected to analysis of variance using GenStat Discovery Edition 4. …”
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1474
Expansion of medical school admission quotas in Korea, is it really necessary?
Published 2025-01-01“…Abstract Background In 2024, the Korean Ministry of Health and Welfare enforced a policy to increase the number of medical school students by 2,000 over the next 5 years, despite opposition from doctors. …”
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1475
Numerical Investigation of Influences of Drilling Arrangements on the Mechanical Behavior and Energy Evolution of Coal Models
Published 2018-01-01“…In addition, the drilling diameter or the number of drilling holes in one row affects the failure mode weakly, which is different from that of the number of drilling rows. …”
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1476
Assessment of Chickpea (Cicer Arietinum L.) Growth and Yield Component by Application of Local Granular Organic Fertilizer, Peat and Inorganic Fertilizer: Comparative Study
Published 2019-12-01“…The growth characteristics included the height of plant, number of branches, days to 50% flowering (days), days to physiological maturity (days) and yield components were: pods number /plant, seed number/plant, seeds weight/plant (g), hundred seed weight (g) and grain yield (kg/ha. …”
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1477
Comparing the effect of addition of different supplements to sperm preparation media on intracytoplasmic injection outcome
Published 2025-01-01“…The number of transferred embryos was also significantly higher in the selenium group compared to the density gradient group. …”
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1478
Analysis of water based Casson hybrid nanofluid (NiZnFe2O4+MnZnFe2O4) flow over an electromagnetic actuator with Cattaneo–Christov heat-mass flux: A modified Buongiorno model
Published 2025-03-01“…The implication of key parameters on both direction velocities, temperature, nanofluid concentration, skin friction coefficients, local Nusselt number, and Sherwood number are displayed graphically. …”
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1479
Effect of Foliar Spraying with Boron and Ascorbic Acid on Growth and Yield Traits of Chili Pepper Grown in Plastic House
Published 2024-12-01“…A concentration of 200 mg L-1 ascorbic acid sprayed on plants produced the best results in terms of plant height, number of branches, number of leaves, number of fruits, weight of fruits, and plant yield (21.88 mm, 72.79 cm, 4.878 plant branches, 166.59 leaves, 77.74 fruits, 21.97 g, 1745.7 g plants-1 respectively). …”
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1480
Optimizing Masks and Random Screening Test Usage within K-12 Schools
Published 2025-01-01“…The goal was to minimize the number of the end-of-semester infections as well as to use the minimum number of resources. …”
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