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Journal of Systems Science and Systems Engineering 2024年第3期33卷 311-329页

作者： Liang Wu Kangjie He Zhe guo School of Mathematical Science Henan Institute of Science and TechnologyXinxiang453003China Public Front Office Department Industrial and Commercial Bank of ChinaZhengzhou450000China

Equilibrium pricing of credit default swaps(CDS)promotes efficient identification of credit risk in the market,which in turn leads to efficient allocation of ***,even when CDS have been priced in equilibrium,i.e.,when premiums are equal to anticipated payments,the moral hazard incentives of CDS buyers increase with CDS ***,it becomes an interesting research direction to study the impact of moral hazard incentives on the trading mechanism or pricing of derivatives(CDS).Most of the existing literature on the impact of moral hazard incentives in CDS pricing on derivatives trading mechanisms takes a macro perspective and focuses on the agreement risk *** literature exploring the analysis of the impact of moral hazard on the probability of agreement default from a micro perspective is not yet *** this in mind,this paper focuses on the mechanisms by which“fraud”,an extreme manifestation of micro-moral hazard incentives,affects the probability of *** paper introduces for the first time the concept of“claiming fraud”by credit protection buyers,which is different from the macro perspective of moral hazard incentives,and thus defines a specific extreme form of moral hazard ***,to address the intrinsic feature of the lack of economic explanatory power of the reduce-form model,this paper introduces a moral hazard incentive factor into the reduce-form model,and proposes a moral hazard state variable as a function of the asset value of the reference entity,which gives the reduce-form model strong economic explanatory power,and the default predictability is reduced by the description of the reduce-form *** terms of the object of study,this paper considers the issue of moral hazard incentives in the presence of claiming fraud in two reference entities to further explore the impact of moral hazard incentives on default protection at the micro level in terms of cyclic ***,based on the

关键词： Financial engineering moral hazard incentive claiming fraud reduce-form model probability of default calculation CDS pricing

Deep genome skimming reveals the hybrid origin of Pseudosasa gracilis (Poaceae: Bambusoideae)

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Plant Diversity 2024年第3期46卷 344-352页

作者： Xiang-Zhou Hu Cen guo Sheng-Yuan Qin De-Zhu Li Zhen-Hua guo Germplasm bank of Wild Species Kunming Institute of BotanyChinese Academy of SciencesKunmingYunnan 650201China University of Chinese Academy of Sciences Beijing 100049China

Pseudosasa gracilis(Poaceae:Bambusoideae)is a temperate woody bamboo species endemic to Southcentral china with a narrow *** phylogenetic studies revealed an unexpected,isolated phylogenetic position of *** we conducted phylogenomic analysis by sampling populations of *** and its sympatric species *** and Sinosasa polytricha reflecting different genomic signals,by deep genome *** molecular evidence from chloroplast genes and genome-wide SNPs,we deciphered the phylogenetic relationships of *** plastid and nuclear data indicate that *** is more closely related to Sinosasa,which is discordant with the taxonomic *** further explore this molecular-morphological conflict,we screened 411“perfect-copy”syntenic genes to reconstruct phylogenies using both the concatenation and coalescent *** observed extensive discordance between gene trees and the putative species tree.A significant hybridization event was detected based on 411 genes from the D subgenome,showing *** was a hybrid descendant between Sinosasa longiligulata and ***,with 63.56%and 36.44%inheritance probabilities of each ***,introgression events were detected in the C subgenome between *** and *** in the same distribution *** findings suggest that sympatric hybridization and introgression play a crucial role in the origin of *** providing an empirical example of bamboo of hybrid origin using comprehensive analyses based on genomic data from different inheritance systems and morphological characters,our study represents a step forward in understanding of reticulate evolution of bamboos.

关键词： Phylogenomics Hybridization Introgression Pseudosasa gracilis Pseudosasa Sinosasa

Strong Anisotropic Order Parameters at All-Nitride Ferromagnet/Superconductor Interfaces

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Chinese Physics Letters 2024年第2期41卷 102-111页

作者： Qiao Jin Meng Yang guozhu Song Nan Zhao Shengru Chen Haitao Hong Ting Cui Dongke Rong Qianying Wang Yiyan Fan Chen Ge Can Wang jiachang Bi Yanwei Cao Liusuo Wu Shanmin Wang Kui-Juan Jin Zhi-Gang Cheng Er-Jia guo Beijing National Laboratory for Condensed Matter Physics and Institute of PhysicsChinese Academy of SciencesBeijing 100190China Department of Physics&Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Department of Physics Southern University of Science and TechnologyShenzhen 518055China Songshan Lake Materials Laboratory Dongguan 523808China Ningbo Institute of Materials Technology&Engineering Chinese Academy of SciencesNingbo 315201China

Proximity effects between superconductors and ferromagnets(SC/FM)hold paramount importance in comprehending the spin competition transpiring at their *** competition arises from the interplay between Cooper pairs and ferromagnetic exchange *** proximity effects between transition metal nitrides(TMNs)are scarcely investigated due to the formidable challenges of fabricating high-quality SC/FM *** fabricated heterostructures comprising SC titanium nitride(TiN)and FM iron nitride(Fe_(3)N)with precise chemical compositions and atomically well-defined *** magnetoresistance of Fe_(3)N/TiN heterostructures shows a distinct magnetic anisotropy and strongly depends on the external ***,the superconducting transition temperatureT_(C) and critical field of TiN experience notable suppression when proximity to Fe_(3)*** observe the intriguing competition of interfacial spin orientations near𝑇T_(C)(∼1.25 K).These findings not only add a new materials system for investigating the interplay between superconductor and ferromagnets,but also potentially provide a building block for future research endeavors and applications in the realms of superconducting spintronic devices.

关键词： proximity Superconductor titanium

胰岛素联合低分子肝素对高脂血症性急性胰腺炎的影响

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中国卫生标准管理 2024年第16期15卷 127-130页

作者：洪佳昌郭巍蔡素芳厦门市第三医院消化内科福建厦门361100

目的探讨胰岛素联合低分子肝素治疗高脂血症性急性胰腺炎(hyperlipidemic pancreatitis,HLAP)患者的临床效果。方法选取2021年2月—2023年3月厦门市第三医院筛选入组的128例HLAP患者为对象,以信封法分为对照组与研究组,各64例。对照组... 详细信息

目的探讨胰岛素联合低分子肝素治疗高脂血症性急性胰腺炎(hyperlipidemic pancreatitis,HLAP)患者的临床效果。方法选取2021年2月—2023年3月厦门市第三医院筛选入组的128例HLAP患者为对象,以信封法分为对照组与研究组,各64例。对照组给予低分子肝素治疗,研究组给予胰岛素联合低分子肝素治疗。比较2组HLAP患者的临床治疗情况、氧化应激反应、炎症反应以及发生不良反应发生率。结果研究组治疗总有效率为95.31%,高于对照组的84.38%,差异有统计学意义(P0.05)。结论胰岛素联合低分子肝素治疗HLAP患者可提高临床治疗效率,缓解氧化应激反应,减轻炎症反应,不良反应较少。

关键词：胰岛素低分子肝素高脂血症性急性胰腺炎氧化应激炎症反应

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柔性玻璃的化学强化及其力学性能研究

硅酸盐通报 2024年第4期43卷 1359-1365页

作者：毛婧怡刘冰郭振强张家昌袁坚武汉理工大学硅酸盐建筑材料国家重点实验室武汉430070 河北省沙河玻璃技术研究院邢台054199

具有高弯曲强度的柔性玻璃是柔性电子显示的重要组成部分,但柔性玻璃本质是脆性材料,因此其力学性能仍然不能满足使用要求。化学强化是提高柔性玻璃弯曲半径、抗划伤性等力学性能的有效途径,本文采用一步化学强化法,将90μm超薄高铝柔... 详细信息

具有高弯曲强度的柔性玻璃是柔性电子显示的重要组成部分,但柔性玻璃本质是脆性材料,因此其力学性能仍然不能满足使用要求。化学强化是提高柔性玻璃弯曲半径、抗划伤性等力学性能的有效途径,本文采用一步化学强化法,将90μm超薄高铝柔性玻璃在纯硝酸钾熔盐中进行强化,研究离子交换工艺对样品表面应力、维氏硬度及弯曲半径的影响规律。结果表明:在380℃进行1 h的离子交换后,样品的表面压应力达834.1 MPa,应力层深度为15.91μm,此时玻璃具有最佳的弯曲性能和耐划伤性;经化学强化后,90μm柔性玻璃的最小弯曲半径可由(29.8±0.73)mm降低至(6.94±0.99)mm;随着继续升高交换温度和延长时间,柔性玻璃的力学性能会有所降低。

关键词：化学强化柔性玻璃表面应力离子交换深度弯曲半径维氏硬度

基于耦合神经P系统的航拍绝缘子图像分割方法

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兰州工业学院学报 2024年第5期31卷 21-28页

作者：郭佳许家昌苏树智安徽理工大学计算机科学与工程学院安徽淮南232001

针对复杂背景下无人机航拍图像分割算法训练规模大、计算代价高等问题,提出一种用耦合神经P系统进行图像分割的新方法(CCNP)。该方法基于耦合神经P系统的脉冲机制与耦合机制,将区域生长与耦合神经P系统相融合,通过神经元的脉冲机制,自... 详细信息

针对复杂背景下无人机航拍图像分割算法训练规模大、计算代价高等问题,提出一种用耦合神经P系统进行图像分割的新方法(CCNP)。该方法基于耦合神经P系统的脉冲机制与耦合机制,将区域生长与耦合神经P系统相融合,通过神经元的脉冲机制,自动激活各个像素点,并根据激活状态将像素点纳入相同区域,有效提高每个像素点的点火速度,克服因像素值过低而难以点火的问题。利用伯克利图像进行验证,CCNP在IOU、DICE指标均值分别为0.94和0.97,MAE指标均值为0.04,三种指标上表现更佳,能够提升图像分割的精度,证明了CCNP的可行性。此外,通过对中国电力线绝缘子图像和无人机航拍图像的实例结果进行分析,进一步证明了CCNP在复杂背景下分割航拍图像中绝缘子的有效性,为航拍绝缘子图像分割提供了一种新方法。

关键词：绝缘子图像分割耦合神经P系统区域生长

BambooBase:A comprehensive database of bamboo omics and systematics

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Molecular Plant 2024年第5期17卷 682-685页

作者： Yun-Long Liu Shu-Yang Gao Guihua Jin Meng-Yuan Zhou Qijuan Gao Cen guo Yi-Zhou Yang Liang-Zhong Niu Enhua Xia Zhen-Hua guo Peng-Fei Ma De-Zhu Li Germplasm bank of Wild Species&Yunnan Key Laboratory of Crop Wild Relatives Omics Kunming Institute of BotanyChinese Academy of SciencesKunmingYunnan 650201China Kunming College of Life Science University of Chinese Academy of SciencesKunmingYunnan 650201China State Key Laboratory of Tea Plant Biology and Utilization Anhui Agricultural UniversityHefeiAnhui 230036China School of Computer and Artificial Intelligence Hefei Normal UniversityHefeiAnhui 230061China Key Laboratory for Plant Diversity and Biogeography in East Asia Kunming Institute of BotanyChinese Academy of SciencesKunmingYunnan 650201China

Dear Editor,Bamboos(Bambusoideae,Poaceae)are of significant economic and ecological importance,supporting billions of people and contributing to international trade(Wu et al.,2023).They play a crucial role in carbon fixation and support a multitude of other species including the giant panda(Clark et al.,2015).Since the release of the first draft genome of moso bamboo(Phyllostachys edulis)(Peng et al.,2013),there has been a notable increase in the sequencing,assembly,and annotation of diverse bamboo genomes(guo et al.,2019;Zheng et al.,2022;Ma et al.,2024).An existing resource for bamboo genomics,BambooGDB(Zhao et al.,2014),provides information based on the individual draft reference genome of moso *** is needed,however,is a resource reinforcing multiple genome assemblies in Bambusoideae to enable researchers to unravel the evolutionary history of chromosomes and genes through cladespecific comparative genomic ***,we present BambooBase(https://***/),a newly developed web-based database designed to provide a seamless user experience for bamboo omics and systematics.

关键词： enable supporting Bamboo

Cutting edge preparation of microdrills by shear thickening polishing for improved hole quality in electronic PCBs

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Frontiers of Mechanical Engineering 2024年第2期19卷 99-107页

作者： Jiahuan WANG Mingfeng KE Jiepei LIAO Yu ZHOU Saurav GOEL Jaya VERMA Xu WANG Weigang guo Julong YUAN Binghai LYU College of Mechanical Engineering Zhejiang University of TechnologyHangzhou 310000China Ultra-precision Machining Center Key Laboratory of Special Purpose Equipment and Advanced Manufacturing TechnologyZhejiang University of TechnologyHangzhou 310000China School of Engineering London South Bank UniversityLondon SE10AAUK Shenzhen Jinzhou Precision Technology Corporation Shenzhen 518116China Department of Mechanical Engineering University of Petroleum and Energy StudiesDehradun 248007India Special Equipment Institute Hangzhou Vocational&Technical CollegeHangzhou 310018China

Printed circuit boards(PCBs)are representative composite materials,and their high-quality drilling machining remains a persistent challenge in the *** finishing of the cutting edge of a microdrill is crucial to drill performance in machining fine-quality holes with a prolonged tool *** miniature size involving submicron scale geometric dimensions,a complex flute shape,and low fracture toughness makes the cutting edge of microdrills susceptible to breakage and has been the primary limiting factor in edge preparation for *** this study,a newly developed cutting edge preparation method for microdrills was tested experimentally on electronic printed circuit *** proposed method,namely,shear thickening polishing,limited the cutting edge burrs and chipping on the cutting edge,and this in turn transformed the cutting edge’s radius from being sharp to ***,the edge–edge radius could be regulated by adjusting the processing *** drilling experiments were conducted to investigate the influence of different cutting edge radii on wear,hole position accuracy,nail head value,and hole wall *** proposed approach showed 20%enhancement in hole position accuracy,33%reduction in the nail head value,and 19%reduction in hole wall roughness compared with the original ***,a threshold is needed;without it,excessive shear thickening polishing will result in a blunt edge,which may accelerate the wear of the *** was identified as the primary factor that reduced hole *** study indicates that in printed circuit board machining,microdrills should effectively eliminate grinding defects and maintain the sharpness of the cutting edge as much as possible to obtain excellent drilling ***,shear thickening polishing is a promising method for cutting edge preparation of *** research and optimization can lead to additional improvements in microdrill performance and contribute to the conti

关键词： microdrill shear thickening polishing cutting edge preparation electronic printed circuit boards hole quality

The Research on the Decision-making Mechanism of china′s Monetary Policy Regulation

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Systems Science and Systems Engineering 2002年第4期11卷 431-438页

作者： guo Ju′eThe School of Management, Xi′an Jiaotong University, Xi′an 710049, china The School of Management Xit an Jiaotong University Xi'an 710049 China

The article adopts the quarterly data of the monetary and macroeconomics variables from 1978～1999, applies the asymmetrical information game analysis, the regression and cointegration error-correction model, to investigate on the decision-making mechanism of money supply and money regulation project. It suggests the regulation process which central bank controls with instruments of the monetary policy and the mode detail of its operation.

关键词： the cointegration error-correction model the determining mechanism of money supply the determining mechanism of regulation project the mode of regulating operation