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Insect Science 2021年第4期28卷 952-964页

作者： Xiong peng Cheng Chen Yixiao Huang Suji Wang Sha Su Maohua Chen State Key Laboratory of Crop Stress Biology for Arid Areas Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural AffairsNorthwest A&F UniversityYanglingShaanxiChina

The short neuropeptide F(sNPF)and NPF receptor(NPFR)genes play important roles in many physiological ***,information on the survival-related functions of sNPF and NPFR under different stress conditions is lacking in *** this study,we cloned sNPF and NPFR,and investigated the expression levels of these genes in different developmental stages,wing morphs,and stress conditions of the bird cherry-oat aphid(Rhopalosiphum padi L.),an important agricultural *** sNPF and NPFR transcript levels varied among developmental stages,and their expression levels in alate females were significantly higher than those in apterous *** addition,starvation resulted in significantly increased sNPF expression,which then recovered after *** stress and insecticides significantly affected transcription of both *** and NPFR knockdown in *** using RNA interference revealed optimal interference efficiency at 48 h *** knockdown significantly decreased adult longevity,15-d fecundity,and food ***,mortality under starvation,insecticides,and heat stress conditions was significantly higher after injection with double-stranded sNPF in *** knockdown significantly affected food intake and starvation resistance in *** results strongly indicate that sNPF plays vital roles in food intake,longevity,and reproduction in ***,and it can significantly affect the pest's response to stress conditions.

关键词： fecundity food intake heat stress insecticides starvation survival rate

Efficient aero-structural design optimization: Coupling based on reverse iteration of structural model

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Science China(Technological Sciences) 2015年第2期58卷 307-315页

作者： ZUO Ying Tao GAO Zheng Hong CHEN Gang WANG Xiao peng LI Yue Ming National Key Laboratory of Aerodynamic Design and Research Northwestern Polytechnical University State Key Laboratory for Strength and Vibration of Mechanical Structures Xi'an Jiaotong University Shanghai Electro-Mechanical Engineering Institute

Traditional coupled multi-disciplinary design optimization based on computational fluid dynamics/computational structure dynamics(CFD/CSD)aims to optimize the jig shape of aircraft,and general multi-disciplinary design optimization methodology is *** special consideration is given to the aircraft itself during the *** main drawback of these methodologies is the huge expanse and the low *** solve this problem,we put forward to optimize the cruise shape directly based on the fact that the cruise shape can be transformed into jig shape,and a methodology named reverse iteration of structural model(RISM)is proposed to get the aero-structural performance of cruise *** main advantage of RISM is that the efficiency can be improved by at least four times compared with loosely-coupled aeroelastic analysis and it maintains almost the same fidelity of loosely-coupled aeroelastic *** optimization framework based on RISM is *** aerodynamic and structural performances can be optimized simultaneously in this framework,so it may lead to the true optimal *** aerodynamic performance was predicted by N-S solver in this *** shows that RISM predicts the aerodynamic and structural performances very well.A wing-body configuration was optimized by the proposed optimization *** drag and weight of the aircraft are decreased after optimization,which shows the effectiveness of the proposed framework.

关键词： aero-structural optimization reverse iteration cruise shape CFD/CSD true optimum semi-coupled

Breeding the Mite-Resistant Honeybee by Nutritional Crossbreed Technology

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Agricultural Sciences in China 2008年第6期7卷 762-767页

作者： XIE Xian-bing peng Wen-jun ZENG Zhi-jiang Honeybee Research Institute Jiangxi Agricultural University Nanchang 330045 P.R.China Institute of Apicultural Research Chinese Academy of Agricultural Sciences Beijing 100093 P.R.China Quanzhou Normal University Quanzhou 362000 P.R.China

Mite （Varroa destructor） is one of the most serious parasite threats to the honey bee （Apis mellifera） reared in China. The beekeepers mainly use the drug to control and kill the mite in the past years, but the honey products may be contaminated and the mite is becoming drug-resistant. The main idea of this paper is to research the possibility of mite-resistant honeybee rearing by nutritional crossbreed. The larvae （Apis mellifera ligustica） are bred with the royal jelly of Apis carana carana, and then the morphological index of the worker generation, genotypic frequency and gene frequency of the MDH Ⅱ, genetic resemblance, and mite resistance are measured. The results show that： compared to the parent workers, the proboscis length, anterior wing area, the total length of the third and fourth dorsal plate of the abdomen, the length of the fourth dorsal plate of the tuberculum, the area of the sixth abdominal segment, and the area of wax mirrors are significantly different, but the differences in the brachium index, dactylus index, and wing claw are not significant. Moreover, there are some mutations in the genotypic frequency and gene frequency of the MDH Ⅱ. The mite resistance of the nutritional crossbreed worker is significantly higher. The morphological, physical, and biochemical characters, genetic resemblance, and the mite-resistant ability of the worker generation can be changed by nutritional crossbreeding. Nutritional crossbreeding can be a new way to breed the honeybee.

关键词： honeybees Varroa destructor nutritional crossbreed

Cuticular protein gene LmACP8 is involved in wing morphogenesis in the migratory locust,Locusta migratoria

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Journal of Integrative Agriculture 2021年第6期20卷 1596-1606页

作者： ZHAO Xiao-ming YANG Jia-peng GOU Xin LIU Wei-min ZHANG Jian-zhen Institute of Applied Biology Shanxi UniversityTaiyuan 030006P.R.China College of Life Science Shanxi UniversityTaiyuan 030006P.R.China

Cuticular proteins(CPs)are major components of the insect cuticle-associated organs such as integument and wings,although the importance of CPs for wing development and function in hemimetabolous insects remains *** the present study,a wing cuticular protein LmACP8 was identified from Locusta migratoria,which belongs to the RR-2 subfamily of cuticular protein R&R consensus(CPR)chitin-binding ***8 was mainly expressed in the wing pads and showed high expression levels before ecdysis of third-,fourth-,and fifth-instar nymphs,with its encoded protein located in the procuticle of wing pads and adult *** of LmACP8 by RNA interference markedly reduced the amount of its protein,which consequently caused abnormal wing morphogenesis in the transition from nymph to adult of *** further demonstrated that the abnormal morphogenesis was caused by severe damage of the endocuticle in the ***8 was suppressed by 20-hydroxyecdysone(20 E)in vivo,however,its expression was significantly up-regulated after knocking down the hormone receptor gene ***,the LmACP8 that is negatively regulated by the LmHR39-mediated 20 E signaling pathway is involved in wing development during the nymph to adult transition.

关键词： cuticular proteins LmACP8,20-hydroxyecdysone wing development

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材料属性对柔性仿生扑翼气动特性的影响

机械工程与自动化 2024年第5期 29-31页

作者：赵香宁曾鹏飞郝永平沈阳理工大学机械工程学院辽宁沈阳110159 沈阳理工大学辽宁省先进制造技术与装备重点实验室辽宁沈阳110159 沈阳理工大学装备工程学院辽宁沈阳110159

为探究不同材料属性柔性扑翼飞行器气动特性的变化,通过ANSYS中Fluent与Transient Structural的双向流固耦合方法,采用k-ω湍流模型,分别对三维柔性扑翼飞行器在不同材料属性下的气动特性进行数值模拟,得到了其瞬时升力、推力随翼面弹... 详细信息

为探究不同材料属性柔性扑翼飞行器气动特性的变化,通过ANSYS中Fluent与Transient Structural的双向流固耦合方法,采用k-ω湍流模型,分别对三维柔性扑翼飞行器在不同材料属性下的气动特性进行数值模拟,得到了其瞬时升力、推力随翼面弹性模量的变化情况,并研究了一周期内扑翼展向流场压力分布与涡结构变化情况。研究结果表明,在一定范围内增加翼面弹性模量,对瞬时升力的提升效果并不明显,瞬时推力会随弹性模量的增加而降低。

关键词：扑翼飞行器材料属性气动特性流固耦合

Efectiveness and petroleum geological signifcance of tectonic fractures in the ultra‑deep zone of the Kuqa foreland thrust belt:a case study of the Cretaceous Bashijiqike Formation in the Keshen gas feld

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Petroleum Science 2021年第3期18卷 728-741页

作者： Rong-Hu Zhang Ke Wang Qing-Lu Zeng Chao-Feng Yu Jun-peng Wang PetroChina Research Institute of Petroleum Exploration and Development Beijing 100086China PetroChina Hangzhou Research Institute of Geology Hangzhou 310023ZhejiangChina

The buried depth of the gas-producing reservoir in the Kuqa foreland thrust belt of the Tarim Basin exceeds 6000 *** average matrix porosity of the reservoir is 5.5%,and the average matrix permeability is 0.128×10^(−3)μm^(2).In order to reveal the characteristics and efectiveness of ultra-deep fractures and their efects on reservoir properties and natural gas production,outcrops,cores,thin section,image logs and production testing data are used to investigate the efectiveness of tectonic fractures in ultra-deep reservoirs in the Kuqa foreland thrust zone,and the corresponding geological signifcance for oil and gas exploration and development are *** fractures in the thrust belt include EW-trending high-angle tensile fractures and NS-trending vertical shear *** former has a relatively high flling rate,while the latter is mostly ***-fractures are usually grain-piercing-through cracks with width of 10-100 *** the planar view,the efective fractures are concentrated in the high part and wing zones of the long axis of the anticline,and along the vertical direction,they are mainly found in the tensile fracture zone above the neutral *** adjustment fracture zone has the strongest vertical extension abilities and high efectiveness,followed by the nearly EW longitudinal tensile fracture zone,and the netted fracture zone with multiple dip *** efectiveness of fracture is mainly controlled by fracture aperture and flling *** fractures can increase reservoir permeability by 1-2 orders of *** higher part of the anticline is associated with high tectonic fracture permeability,which control enrichment and high production of natural *** netted vertical open fractures efectively communicate with pores and throats of the reservoir matrix,which forms an apparent-homogenous to medium-heterogeneous body that is seen with high production of natural gas sustained for a long term.

关键词： Fracture efectiveness Ultra-deep Reservoir Foreland thrust belt Kuqa depression Geological signifcance

Enrichment characteristics and risk assessment of Hg in bird feathers from Caohai wetland in Guizhou Province,China

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Acta Geochimica 2018年第4期37卷 526-536页

作者： Fengcheng peng Tianrong He Zhenji Li Mengyu Chen Xiaoli Qian Lingxia Zeng Yiyuan Xu Key Laboratory of Karst Environment and Geohazard Prevention Guizhou University Area Management Bureau of Guizhou Caohai National Nature Reserve The School of Resources and Environment Engineering Guizhou University

Based on the analysis of the enrichment char- acteristics of Hg and MeHg in bird feathers from Caohai National Nature Reserve in Guizhou, the risks of Hg pol- lution to the birds from Caohai wetland have been evalu- ated. The total Hg content of bird feathers ranges from 40 to 5058 ng/*** an average of 924 ng/g. The content of MeHg is significantly correlated with total Hg （r = 0.68,p 〈 0.01）, and the content are among 0.75 and 113 ng/g. The total Hg content in the birds feathers is significantly dependent on their feeding habits, which is mainly in accordance with the following rule： carnivorous birds 〉 omnivorous birds that are mainly carnivo- rous 〉 omnivorous birds that are mainly herbivorous. There are also differences in the Hg enrichment ability in the different parts of bird feathers, and the total Hg and MeHg content in the wing feathers are significantly higher than that in the other parts of feathers. The bioaccumula- tion coefficients of aqueous Hg and MeHg by bird feathers are 0.9 × 10︿4-112.13× 10︿4 （mean value is 20.47 ×10︿4）and 0.47 × 10︿4-70.4 × 10︿4 （mean value is 9.52 × 10︿4）, respectively. Although the whole Hg level in Caohai bird feathers is not too high, the Hg content in some carnivorous birds exceeds over or approaches the abnormal threshold when birds are breeding （5μg/g）, which indicates that the birds in Caohai wetland are faced with some risks of ecological Hg pollution.

关键词： Caohai wetland Total Hg Methyl Hg Birdfeathers

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锥形内翅片管传热性能数值模拟研究

机电工程技术 2024年第5期53卷 25-29页

作者：邓明江黄书烽蓝宁彭海健东华理工大学机械与电子工程学院南昌330013

针对传统内螺纹翅片管的翅片高度较低,对热边界层的扰动较弱,传热性能不高等问题,基于计算流体力学理论,利用Fluent仿真软件,在雷诺数为10000~18000时,通过对内螺纹翅片管和一种锥形内翅片管数值模拟结果进行比较发现,锥形内翅片管的传... 详细信息

针对传统内螺纹翅片管的翅片高度较低,对热边界层的扰动较弱,传热性能不高等问题,基于计算流体力学理论,利用Fluent仿真软件,在雷诺数为10000~18000时,通过对内螺纹翅片管和一种锥形内翅片管数值模拟结果进行比较发现,锥形内翅片管的传热性能远高于内螺纹翅片管。此外,对锥形内翅片管的齿条数、翅片间距以及翅片高度分别进行数值模拟发现,当齿条数N=45时,锥形内翅片管的Nu值较大,约是光管的2倍;当翅片间距越小时,Nu值越大;在L=0.6 mm时,努塞尔数取得较大值,约为光滑管的1.6~1.9倍;高度h=0.7 mm时,努塞尔数有较大值,约是光滑管的1.95~2.01倍。结果表明,齿条数越多,翅片间距越小以及翅片高度越高的锥形内翅片管具有良好的传热性能。这种翅片管具有传热面积显著增大、翅高显著提高以及可以更好地破环热边界层等优点。通过比较不同的结构参数下对应的翅片管的摩擦因数、努塞尔数和综合评价指标等值,以寻求锥形内翅片管最佳的结构参数。

关键词：锥形内翅片管计算流体力学传热性能数值模拟

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Adaptive Sliding Mode BTT Autopilot for Cruise Missiles with Variable-Swept wings

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Journal of Harbin Institute of Technology(New Series) 2014年第2期21卷 33-42页

作者： Wei-Ming Li Rui-Sheng Sun Hong-Yang Bai peng-Yun Liu School of Energy and Power Engineering Nanjing University of Science and Technology

In this paper,an adaptive sliding mode method was proposed for BTT autopilot of cruise missiles with variable-swept wings. To realize the whole state feedback,the roll angle,normal overloads and angular rates were considered as state variables of the autopilot,and a parametric sliding mode controller was designed via feedback linearization. A novel parametric adaptation law was put forward to estimate the nonlinear timevarying parameter perturbations in real time based on Lyapunov stability theory. A sliding mode boundary layer theory was adopted to smooth the discontinuity of control variables and eliminate the control chattering. The simulation was presented for the roll angle and overload commands tracking in different configuration schemes. The results indicated that the controlled system has robust dynamic tracking performance in condition of the large-scale aerodynamic parametric variety resulted from variable-swept wings.

关键词： BTT autopilot adaptive sliding mode control variable-sweep wing

FTO基因单核苷酸多态性对和盈黑鸡屠体及生长性状影响的研究

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黑龙江畜牧兽医 2024年第5期 8-13页

作者：巩用双丁浩徐军高鹏卢新旺袁运伟王金玉张涛江苏和盈家禽育种科技有限公司江苏盐城224351 扬州大学动物科学与技术学院江苏扬州225009

为了探究脂肪量和肥胖相关(fat mass and obesity associated,FTO)基因多态性及其对鸡屠体性状和生长性状的影响,试验采用DNA测序检测鸡FTO基因编码区的单核苷酸多态性(SNP),并采用一般线性模型中的LSD法分析FTO基因多态性对和盈黑鸡屠... 详细信息

为了探究脂肪量和肥胖相关(fat mass and obesity associated,FTO)基因多态性及其对鸡屠体性状和生长性状的影响,试验采用DNA测序检测鸡FTO基因编码区的单核苷酸多态性(SNP),并采用一般线性模型中的LSD法分析FTO基因多态性对和盈黑鸡屠体性状和生长性状的影响。结果表明:在FTO基因第5外显子和第7外显子上各检测到一个SNP位点,分别为g.57337C>A和g.64757T>G突变。g.57337C>A突变形成AA、AB和BB 3种基因型,g.64757T>G突变形成TT、TG和GG 3种基因型。g.57337C>A位点对和盈黑鸡屠体重、宰前活重、头重、胸肌重、腿肌重上、肝脏重、心脏重7个屠体性状有显著或极显著影响(PG位点对和盈黑鸡宰前活重、全净膛重、半净膛重、屠体重和翅重5个屠体性状有显著影响(PA和g.64757T>G位点可作为和盈黑鸡屠体性状和生长性状遗传改良的重要候选分子标记。

关键词： FTO基因单核苷酸多态性和盈黑鸡生长性状屠体性状