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Journal of Materials Science & Technology 2021年第12期71卷 186-194页

作者： Le Thai Duy Ji-ye Baek ye-Ji Mun Hyungtak Seo Department of Materials Science&Engineering Ajou UniversitySuwon16499South Korea Department of Energy Systems Research Ajou UniversitySuwon16499South Korea

Perovskite oxides like S rTiO_(3) at the nanoscale are of interest for eme rging applications,including high-k dielectrics and ***,their synthesis requires long calcination at the elevated temperature,which is a barrier of their application to flexible ***,an effective laser-assisted sol-gel method to patternably produce S rTiO_(3) na noparticles(-100 nm)in selective areas on polyimide substrates(coated with ITO)is ***,the violet-laser power is just 1 W but sufficient to crystallize the material in a short period(a few seconds).Furthermore,developing a flexible device platform using carbon nanotubes(CNT)and SrTiO_(3) nanoparticles for detection of humidity changes at room temperature is *** sensor platform has both capacitive and resistive sensing *** resistive mode with a lower power usage(about 0.2μW)is suitable for long monitoring of humidity in the range of2%RH and *** capacitive mode with higher sensitivity,faster response/recovery time(1-3 min),and lower detection limit(0.5%RH)can be used for calibration *** performance of the flexible sensor is still maintained after 5000 bending cycles at 1.5-cm ***,our synthesis method and the flexible sensor show chances for mass-producing perovskite oxides at low cost for wearable electronics.

关键词： SrTiO_(3) Nanoparticles Laser annealing Patternable Flexible sensor CNT

Spatial image encryption algorithm based on chaotic map and pixel frequency

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Science China(Information Sciences) 2018年第5期61卷 315-325页

作者： Guodong ye Xiaoling HUANG Faculty of Mathematics and Computer Science Guangdong Ocean University College of Information Science and Electronic Engineering Zhejiang University

Images,as a multimedia resource,for example,medical,education,sensing,and military images,have been playing an important role in digital information *** prevent unauthorized access and protect the security of an image,a direct approach is to encrypt the image[1,2]to hide its *** maps(systems)have some excellent inherent properties[3,4],such as nonlinearity,sensitivity to initial conditions,and ***,they have received increasing attention and have been widely used in

关键词： Spatial image encryption algorithm based on chaotic map and pixel frequency Figure

Near-wall behaviors of oblique-shock-wave/turbulent-boundary-layer interactions

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Applied Mathematics and Mechanics(English Edition) 2017年第10期38卷 1357-1376页

作者： Mingsheng ye Ming DONG Department of Mechanics Tianjin University Tianjin Key Laboratory of Modern Engineering Mechanics

A direct numerical simulation （DNS） on an oblique shock wave with an incident angle of 33.2° impinging on a Mach 2.25 supersonic turbulent boundary layer is performed. The numerical results are confirmed to be of high accuracy by comparison with the reference data. Particular efforts have been made on the investigation of the near-wall behaviors in the interaction region, where the pressure gradient is so significant that a certain separation zone emerges. It is found that, the traditional linear and loga- rithmic laws, which describe the mean-velocity profiles in the viscous and meso sublayers, respectively, cease to be valid in the neighborhood of the interaction region, and two new laws of the wall are proposed by elevating the pressure gradient to the leading order. The new laws are inspired by the analysis on the incompressible separation flows, while the compressibility is additionally taken into account. It is verified by the DNS results that the new laws are adequate to reproduce the mean-velocity profiles both inside and outside the interaction region. Moreover, the normalization adopted in the new laws is able to regularize the Reynolds stress into an almost universal distribution even with a salient adverse pressure gradient （APG）.

关键词： shock wave turbulent boundary layer direct numerical simulation (DNS),adverse pressure gradient (APG) separation

Mechanisms of Collaboration in the Hotel Supply Chain:Two-Stage Ordering Contract and Option Contract

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Journal of Systems Science & Complexity 2018年第3期31卷 750-772页

作者： ZHANG Li ye Fei School of Business Administration South China University of Technology

This paper considers a hotel supply chain consisting of a hotel and an online travel agent （OTA） for the distribution of a limited number of rooms through both offline and online channels. Under the merchant cooperation assumption, to overcome the disadvantages of the decentralized decision model and demand uncertainty, two collaboration mechanisms, namely a two-stage ordering contract and an option contract, are introduced to increase the profit in the hotel supply chain. This paper investigates the optimal decisions of the hotel and the OTA under different contract models. Moreover, the authors analyze the effect of demand uncertainty and the interaction of demand variability and the hotel＇s capacity on the profits of the hotel and the OTA under different models. The results show that both the two-stage ordering contract and the option contract can increase the profits of the entire supply chain and the hotel; however, the profit of the OTA can be increased through the two-stage ordering contract and option contract only when the hotel＇s capacity is relatively small and the demand variability is big; otherwise, the two collaboration mechanisms cannot increase the OTA＇s profit.

关键词： Demand uncertainty dual-channel option contract two-stage ordering contract.

Type Synthesis of Lower Mobility Parallel Mechanisms: A Review

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Chinese Journal of Mechanical Engineering 2019年第2期32卷 13-23页

作者： Wei ye Qinchuan Li Faculty of Mechanical Engineering and Automation Zhejiang Sci-Tech University

Type synthesis of mechanisms aims to systematically determine all possible structures for a specific mobility requirement. Numerous methods based on di erent theories were proposed for type synthesis of lower mobility parallel mechanisms in past decades. However, there does not exist a comprehensive review on these approaches. Therefore, the goal of this paper is to give such a review, classifying the approaches proposed in the literature into three groups, namely, motion-based methods, constraint-based methods, and other methods. The motion-based methods include the Lie group based method, the GF set method, the linear transformation method, the POC set method,and the finite screw method. The constraint-based methods involve the screw theory-based method, the virtual chain method, the method based on Grassmann line geometry and line graphs, and the motion constraint generator method. Other methods contain the enumeration approach based on the general CGK mobility formula and the graph theory method. Upon thoroughly analyzing the characteristics and/or limitations of each method, this review provides a well reference to help researchers find an e ective synthesis method for innovative design and further scientific investigations for mechanisms.

关键词： Parallel mechanism Lower mobility Type synthesis Innovative design

Flexible Transparent Conductive Films on the Basis of Ag Nanowires:Design and Applications:A Review

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Journal of Materials Science & Technology 2015年第6期31卷 581-588页

作者： Weiwei He Changhui ye Key Laboratory of Materials Physics Institute of Solid State PhysicsChinese Academy of Sciences

Transparent conductive films are used ubiquitously in optoelectronic *** properties of transparent films are extremely important for device performance,and the specifications vary according to types of *** the past few years,various types of transparent conductive films on the basis of nanomaterials have emerged,and among these materials,silver nanowire networks show promising performance and represent a viable alternative to the commonly used,scarce and brittle indium tin *** this paper,the working principle and the design protocol of Ag nanowire network flexible transparent conductive films are reviewed,and the applications of Ag nanowircs transparent conductive film are also briefly *** remarks are provided to propose future research in this field towards real-world applications.

关键词： Ag nanowires Transparent conductive films Touch pa

Numerical Simulation of Unsteady Flow Around Forward Flight Helicopter with Coaxial Rotors

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Chinese Journal of Aeronautics 2011年第1期24卷 1-7页

作者： XU Heyong ye Zhengyin National Key Laboratory of Science and Technology on Aerodynamic Design and Research Northwestern Polytechnical University Xi 'an 710072 China

Three-dimensional unsteady Euler equations are numerically solved to simulate the unsteady flows around forward flight helicopter with coaxial rotors based on unstructured dynamic overset grids. The performances of the two coaxial rotors both become worse because of the aerodynamic interaction between them, and the influence of the top rotor on the bottom rotor is greater than that of the bottom rotor on the top rotor. The downwash velocity at the bottom rotor plane is much larger than that at the top rotor plane, and the downwash velocity at the top rotor plane is a little larger than that at an individual rotor plane. The downwash velocity and thrust coefficient both become larger when the collective angle of blades is added. When the spacing between the two coaxial rotors increases, the thrust coefficient of the top rotor increases, but the total thrust coefficient reduces a little, because the decrease of the bottom rotor thrust coefficient is larger than the increase of the top rotor thrust coefficient.

关键词： coaxial rotors unstructured grid overset grids thrust coefficient interaction flow helicopters numerical simulation

S-box:six-dimensional compound hyperchaotic map and artificial bee colony algorithm

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Journal of Systems Engineering and Electronics 2016年第1期27卷 232-241页

作者： ye Tian Zhimao Lu College of Information and Communication Engineering Harbin Engineering University Key Laboratory of Photonic and Electronic Bandgap Materials Ministry of EducationSchool of Physics and Electronic EngneeringHarbin Normal University Faculty of Electronic Information and Electrical Engineering Dalian University of Technology

Being as unique nonlinear components of block ciphers,substitution boxes（S-boxes） directly affect the security of the cryptographic *** is important and difficult to design cryptographically strong S-boxes that simultaneously meet with multiple cryptographic criteria such as bijection,non-linearity,strict avalanche criterion（SAC）,bits independence criterion（BIC）,differential probability（DP） and linear probability（LP）.To deal with this problem,a chaotic S-box based on the artificial bee colony algorithm（CSABC） is *** uses the S-boxes generated by the six-dimensional compound hyperchaotic map as the initial individuals and employs ABC to improve their *** addition,it considers the nonlinearity and differential uniformity as the fitness functions.A series of experiments have been conducted to compare multiple cryptographic criteria of this algorithm with other *** results show that the new algorithm has cryptographically strong S-box while meeting multiple cryptographic criteria.

关键词： substitution boxes(S-boxes) multiple cryptographic criteria six-dimensional compound hyperchaotic map artificial bee colony algorithm(ABC).

Multi-user quantum private comparison with scattered preparation and one-way convergent transmission of quantum states

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Science China(Physics,Mechanics & Astronomy) 2017年第9期60卷 7-16页

作者： TianYu ye ZhaoXu Ji College of Information & Electronic Engineering Zhejiang Gongshang University

Quantum private comparison(QPC) aims to accomplish the equality comparison of the secrets from different users without disclosing their genuine contents by using the principles of quantum mechanics. In this paper, we summarize eight modes of quantum state preparation and transmission existing in current QPC protocols first. Then, by using the mode of scattered preparation and one-way convergent transmission, we construct a new multi-user quantum private comparison(MQPC) protocol with two-particle maximally entangled states, which can accomplish arbitrary pair's comparison of equality amongK users within one execution. Analysis turns out that its output correctness and its security against both the outside attack and the participant attack are guaranteed. The proposed MQPC protocol can be implemented with current technologies. It can be concluded that the mode of scattered preparation and one-way convergent transmission of quantum states is beneficial to designing the MQPC protocol which can accomplish arbitrary pair's comparison of equality among K users within one execution.

关键词： multi-user quantum private comparison (MQPC) scattered preparation one-way convergent transmission

Bullous pemphigoid associated with acquired hemophilia A: A case report

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World Journal of Clinical Cases 2025年第4期13卷 28-33页

作者： Su-ye Hu Meng-Can Li Zi-Jia Hao Xu-Ya Chai Pei-Sai Li Yang Liu Li-Xia Liu Ying Xu Pan-Pan Yang Ling-E Li Department of Dermatology Shijiazhuang Traditional Chinese Medicine HospitalShijiazhuang 050051Hebei ProvinceChina Graduate School Hebei University of Traditional Chinese MedicineShijiazhuang 050051Hebei ProvinceChina Department of Pathology Shijiazhuang Traditional Chinese Medicine HospitalShijiazhuang 050051Hebei ProvinceChina

BACKGROUND Acquired hemophilia A (AHA) is a rare and potentially severe bleeding disordercaused by circulating autoantibodies against factor Ⅷ (FⅧ). In approximately50% of the patients, the condition is associated with autoimmune diseases,cancers, medication use, pregnancy, and the post-partum period. Bullous pemphigoid(BP) is a chronic autoimmune subepidermal blistering disease associatedwith tissue-bound and circulating autoantibodies against BP antigens 180 (BP180)and 230 (BP230). AHA-associated BP has a high mortality rate;hence, the understandingof this disease must *** SUMMARY A 69-year-old man presented with erythema, blisters, blood blisters, and crustsaccompanied by severe pruritus for more than 20 days, and ecchymosis andswelling on his left upper arm for 3 days. Pathological examination revealed asubepidermal blister that contained eosinophils. Laboratory tests showed that theBP180 autoantibody levels had increased, isolated activated partial thromboplastintime was notably prolonged (115.6 s), and coagulation FⅧ activity wasextremely low (< 1.0%). Furthermore, the FⅧ inhibitor titer had greatlyincreased (59.2 Bethesda units). Therefore, the patient was diagnosed as having BP associated with AHA, prescribed 0.05% topical halometasone cream, and transferred to a higher-level hospitalfor effective treatment;however, he died after 2 *** AHA associated BP is rare, dangerous, and has a high mortality rate. Therefore, its timely diagnosis and effectivetreatment are necessary.

关键词： Bullous pemphigoid Acquired hemophilia A Acquired hemophilia A FactorⅧ Case report