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Study on Flight Performance of Propeller-Driven UAV

The engine performance test at altitudes of 0-7000 m was carried out on the high-performance test bench of the Unmanned Aerial Vehicle (UAV) piston engine. The flight performance of UAV was studied, including propeller thrust characteristics, maneuverability, flight envelope, and cruise performance. The results showed that with the increase in altitudes, the UAV climb rate...

Adaboost-SVM-based probability algorithm for the prediction of all mature miRNA sites based on structured-sequence features

Heilongjiang Provincial Universities (Nos: 135109246, 135209208) and the Science and Technology Project of Qiqihar (GYGG-201513, GYGG-201709). 1 3 Author Contributions Jian Zhang contributed to developing the

Upper-Bound Finite Element Adaptive Analysis of Plane Strain Heading in Soil with a Soft Upper Layer and Hard Lower Layer

Correspondence should be addressed to Yu Liang; nc.ude.usys.liam@52uygnail Received 29 October 2018; Accepted 14 January 2019; Published 3 February 2019 Academic Editor: Marco Corradi Copyright © 2019 Jian ... Zhang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original

Multi-channel framelet denoising of diffusion-weighted images

grant (15A066) to Jian Zhang. Bin Dong was supported in part by NSFC 11671022. Diffusion-weighted (DW) images are typically acquired with non-collinear gradient directions. As shown in Fig 1, DW images ... Zhang, Bin Dong, Pew-Thian Yap. Data curation: Geng Chen. Formal analysis: Geng Chen. Funding acquisition: Jian Zhang, Bin Dong, Dinggang Shen, Pew-Thian Yap. Investigation: Jian Zhang. Methodology

HMGB1-modified mesenchymal stem cells attenuate radiation-induced vascular injury possibly via their high motility and facilitation of endothelial differentiation

BackgroundVascular injury is one of the most common detrimental effects of cancer radiotherapy on healthy tissues. Since the efficacy of current preventive and therapeutic strategies remains limited, the exploration of new approaches to treat radiation-induced vascular injury (RIV) is on high demands. The use of mesenchymal stem cells (MSCs) to treat RIV holds great promise...

AP-2α expression in papillary thyroid carcinoma predicts tumor progression and poor prognosis

AP-2alpha expression in papillary thyroid carcinoma predicts tumor progression and poor prognosis Hong Rong Wu, Jian Zhang Department of Pathology, The Xiangya Hospital of Central South University

Level of Knowledge and Needs on Fertility Preservation in Reproductive-Aged Male Patients with Cancer

There is a growing concern about the fertility preservation (FP) for cancer patients of childbearing age. This study is the first in China to survey men with cancer, of reproductive age, regarding their knowledge of FP and their related needs. A 12-item cross-sectional survey was conducted of 332 male patients. The score for knowledge of FP was 3.5 ± 0.67, of a possible score of...

Development of Level-of-Service Criteria based on a Single Measure for BRT in China

, urban transportation systems in China, transportation economics, public transportation management, and urban information systems. Jian Zhang () is an Assistant Professor in the School of Transportation

Determinations of the form factors of semileptonic \(D\rightarrow K\) decays and leptoquark constraints

By analyzing all existing measurements for \( D\rightarrow K \ell ^+ \nu _{\ell } \) (\(\ell =e,\ \mu \)) decays, we find that the determinations of both the vector form factor \(f_+^K(q^2)\) and scalar form factor \(f_0^K(q^2)\) for semileptonic \(D\rightarrow K\) decays from these measurements are feasible. By taking the parameterization of the one order series expansion of the...

Co/N co-doped graphene-like nanocarbon for highly efficient oxygen reduction electrocatalyst

The development of efficient and inexpensive graphene-based electrocatalysts is of great significance to promote the commercial application of fuel cell and metal-air batteries. In this paper, a new type of Co and N co-doped graphene-like nanocarbon (Co/N-GLC) material was prepared by nano-silicon protection and high temperature pyrolysis. The obtained Co/N-GLC catalyst not only...

Low-dimensional approximation searching strategy for transfer entropy from non-uniform embedding

causality analysis. Supporting information S1 File. Matlab code for LA method by BIN-NN estimator. (ZIP) Data curation: Jian Zhang. Formal analysis: Jian Zhang. Investigation: Jian Zhang. Methodology ... : Jian Zhang. Resources: Jian Zhang. Software: Jian Zhang. Supervision: Jian Zhang. Validation: Jian Zhang. Visualization: Jian Zhang. 22 / 24 Writing ± original draft: Jian Zhang. Writing ± review

Gaussian processes reconstruction of dark energy from observational data

In the present paper, we investigate the dark energy equation of state using the Gaussian processes analysis method, without confining a particular parametrization. The reconstruction is carried out by adopting the background data including supernova and Hubble parameter, and perturbation data from the growth rate. It suggests that the background and perturbation data both...

Reliability Evolution of Elevators Based on the Rough Set and the Improved TOPSIS Method

be addressed to Wei Wang; nc.ude.uhh@76662831831 Received 1 April 2018; Revised 31 May 2018; Accepted 6 June 2018; Published 18 July 2018 Academic Editor: Carlos Llopis-Albert Copyright © 2018 Jian ... Zhang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original

Reliability Evolution of Elevators Based on the Rough Set and the Improved TOPSIS Method

Focusing on reliability evaluation of elevator equipment operation, this paper builds a model for reliability evaluation of elevator equipment. First, we analyze the factors influencing the reliability of elevators and extract the initial evaluation indicators from four macro-perspectives: people, management, equipment, and environment, to build the index system for reliability...

Distributed Weak Fiber Bragg Grating Vibration Sensing System Based on 3 × 3 Fiber Coupler

A novel distributed weak fiber Bragg gratings (FBGs) vibration sensing system has been designed to overcome the disadvantages of the conventional methods for optical fiber sensing networking, which are: low signal intensity in the usually adopted time-division multiplexing (TDM) technology, insufficient quantity of multiplexed FBGs in the wavelength-division multiplexing (WDM...

Hysteretic Behavior of Eccentrically Loaded Reinforced Air-Entrained Concrete Columns under Combined Effects of Freeze-Thaw Cycles and Seawater Corrosion

Besides service loads, reinforced concrete structures in cold coastal seismic regions are subjected to multiple attacks of freeze-thaw cycles and seawater corrosion as well as the earthquake struck. An experimental study was conducted to investigate the seismic response of eccentrically loaded reinforced air-entrained concrete columns under alternative actions of freeze-thaw...

Limits to growth of forest biomass carbon sink under climate change

Widely recognized as a significant carbon sink, North American forests have experienced a history of recovery and are facing an uncertain future. This growing carbon sink is dictated by recovery from land-use change, with growth trajectory modified by environmental change. To address both processes, we compiled a forest inventory dataset from North America to quantify aboveground...

Does BMP2 play a role in the pathogenesis of equine degenerative suspensory ligament desmitis?

ObjectiveHorses afflicted with degenerative suspensory ligament desmitis (DSLD) suffer from progressive leg pain and lameness without history of trauma. DSLD is a systemic disorder caused by abnormal accumulation of proteoglycans in many connective tissues. One proteoglycan found in higher quantities in DSLD is decorin. The accumulated decorin has an abnormally glycosylated...

Integrating self-determined needs into the relationship among product design, willingness-to-pay a premium, and word-of-mouth: a cross-cultural gender-specific study

Integrating self-determined needs into the relationship among product design, willingness-to-pay a premium, and word-of-mouth: a cross-cultural gender-specific study Faheem Gul Gilal,1 Jian Zhang,1

Clustering Pattern and Functional Effect of SNPs in Human miRNA Seed Regions

, Guangdong 510515, China Correspondence should be addressed to Jian Zhang; moc.liamxof@ums.gnahznaij Received 5 December 2017; Accepted 7 February 2018; Published 6 March 2018 Academic Editor: Giulia