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Genotype-environment interaction in Cordia trichotoma(Vell.)Arrá*** *** in two different soil conditions

Journal of Forestry Research 2022年第1期33卷 309-319页

作者： Wanderley dos Santos Bruno Marchetti de Souza Daniele Fernanda Zulian Gilberto Terra Ribeiro Alves João Bosco Vasconcellos Gomes Mário Luiz Teixeira de Moraes Valderês Aparecida de Sousa Ananda Virginia de Aguiar faculdade de engenharia de ilha solteira Universidade Estadual Paulista“Júlio Mesquita Filho”Ilha Solteira 15385-000Brazil Sucupira Agroflorestas Fazenda SucupiraValença 45400-000Brazil EMBRAPA Florestas Empresa Brasileira de Pesquisa AgropecuáriaColombo 83411-000Brazil

Investment in silvicultural techniques is noticeably lacking,especially in breeding programs for non-conventional wood *** genotype×environment interaction(G×E)is essential to the development of breeding ***,this study aimed to estimate genetic diversity of and the effects of G×E interaction on two progeny tests of Cordia trichotoma,including the estimation of genetic gain and genetic diversity after *** the experiment,30 progenies of *** were tested at two sites with differing soil *** at breast height(1.30 m above soil surface,dbh-cm),total height,diameter at 30 cm from the soil,first branch height,and survival were all monitored for four *** deviance,best linear unbiased estimator,and harmonic mean of relative performance of genetic values(MHPRVG)were all calculated to predict breeding values,estimate genetic parameters,and analyze *** quantified traits varied significantly among progenies by soil type,with greatest variation recorded for genetic *** of the progenies led to predictions of genetic gain,ranging from 7.73 to 15.45%,for dbh at four years of *** calculated decrease in genetic diversity after selection showed that this parameter should be monitored in subsequent breeding cycles.G×E was low for all *** best-performing progenies proved most stable and best adapted to the different environmental conditions tested.

关键词： Effective population number Native species Productivity Stability and adaptability Tree improvement

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Phase Transformations in PZT Thin Films Prepared by Polymeric Chemical Method

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Advances in Materials Physics and Chemistry 2012年第3期2卷 178-184页

作者： Elton C. Lima Eudes Borges Araújo faculdade de engenharia de ilha solteira Departamento de Física e Química UNESP—Universidade Estadual Paulista Ilha Solteira Brazil

Lead zirconate titanate Pb(Zr0.50Ti0.50)O3 (PZT) thin films were deposited by a polymeric chemical method on Pt(111)/ Ti/SiO2/Si substrates to understand the mechanisms of phase transformations in these films. PZT films pyrolyzed at temperatures higher than 350℃ present a coexistence of pyrochlore and perovskite phases, while only perovskite phase is present in films pyrolyzed at temperatures lower than 300℃. For films where the pyrochlore and perovskite phase coexists the amount of pyrochlore phase decreases from top surface to the bottom film-electrode interface and the PZT structure near top surface are Ti-rich compositions while near the bottom film-electrode interface the compositions are Zr-rich. For pyrochlore-free PZT thin film, a small (100) orientation tendency near the film-electrode interface was observed.

关键词： PZT Thin Films Phase Transformation

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An Investigation into the Isolation Performance of Mono-and Bi-stable Systems

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Journal of Marine Science and Application 2014年第3期13卷 291-298页

作者： Zeqi Lu Tiej un Yang Michael J. Brennan Xinhui Li Zhigang Liu College of Power and Energy Engineering Harbin Engineering University Harbin 150001 China departamento de engenharia Mecanica UNESP Ilha Solteira 03001-000 Brizal

由对改进隔离表演的需要激发了，许多研究研究与非线性的特征在隔离乾上被执行了。基于他们的阶段肖像的形状，如此的设备能作为也被设置单稳态或双稳态的隔离乾。这篇论文集中于在一样的刺激下面调查这二个班的相对表演。力量能递送被... 详细信息

由对改进隔离表演的需要激发了，许多研究研究与非线性的特征在隔离乾上被执行了。基于他们的阶段肖像的形状，如此的设备能作为也被设置单稳态或双稳态的隔离乾。这篇论文集中于在一样的刺激下面调查这二个班的相对表演。力量能递送被用来测量隔离表演，它以播送力量的比率的 RMS 被定义到刺激力量。当系统受到泛音刺激时，在隔离的力量能递送的最大的减小用伪变化，这被发现 -- 零僵硬被完成。当系统受到随机的刺激时，它有伪的一样的效果 -- 零僵硬。进一步，最佳抑制能与僵硬被改变并且有最小的价值。

关键词：双稳系统性能力传递率非线性特性谐波激励随机激励隔离器激励力

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High-static-low-dynamic-stiffness vibration isolation enhanced by damping nonlinearity

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Science China(Technological Sciences) 2019年第7期62卷 1103-1110页

作者： LU ZeQi BRENNAN Michael DING Hu CHEN LiQun Shanghai Institute of Applied Mathematics and Mechanics Shanghai University Shanghai 200072 China departamento de engenharia Mecanica Universidade Estadual Paulista (UNESP) Ilha Solteira (SP) 56-15385-000 Brasil department of Mechanics Shanghai University Shanghai 200444 China Shanghai Key Laboratory of Mechanics in Energy Engineering Shanghai University Shanghai 200072 China

High-static-low-dynamic-stiffness(HSLDS) nonlinear isolators have proven to have an advantage over linear isolators, because HSLDS nonlinear isolators allow low-frequency vibration isolation without compromising the static stiffness. Previously, these isolators have generally been assumed to have linear viscous damping, degrading the performance of the isolator at high frequencies. An alternative is to use nonlinear damping, where the nonlinear behavior is achieved by configuring linear dampers so they are orthogonally aligned to the excitation direction. This report compares the performances of single-stage and two-stage isolators with this type of damping with the corresponding isolators containing only linear viscous damping. The results show that both isolators with linear viscous damping and nonlinear damping reduce the transmissibility around the resonance frequencies, but the results show that the isolators with nonlinear damping perform better at high frequencies.

关键词： nonlinear vibration isolation transmissibility high-static-low-dynamic-stiffness damping nonlinearity

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Evaluation of Insecticides Targeting Control of Helicoverpa armigera(Hubner)(Lepidoptera:Noctuidae)

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American Journal of Plant Sciences 2014年第18期5卷 2823-2828页

作者： Eliane Carneiro Luciana Barboza Silva Kellen Maggioni Vilmar Buenos dos Santos Thiago Ferreira Rodrigues Soislan Souza Reis Bruno Ettore Pavan Programa de Pos Graduacao em Agronomia Fitotecnia Universidade Federal do PiauíCampus Prof.CinobelinaElvasBom JesusBrazil Graduacao em Agronomia Universidade Federal do Piauí Campus Prof.CinobelinaElvasBom JesusBrazil faculdade de engenharia unesp ilha solteira Universidade Estadual PaulistaIlha SolteiraBrazil

Insecticides from different chemical groups were tested by laboratory bioassay to verify the percentage mortality of Helicoverpa armigera (Hubner 1808) (Lepidoptera: Noctuidae). The experiment was conducted in the Crop Science laboratory—Prof. CinobelinaElvas Campus—UFPI, Bom Jesus, PI, from January to June, 2013. The populations utilized came from the University’s own insect breeding laboratories. Third instar larvae of H. armigera were used to conduct the bioassay. The experimental design was fully randomized, with 13 treatments and four replications. Five larvae were used per replication, with 12 insecticides from 9 different chemical groups and a control. Each treatment consisted of three doses. The methods of application used were topical contact and ingestion in artificial diet. According to the results the percentage mortality of H. armigera larvae varied among the treatments. The results demonstrated that chlorpyrifos and spinosad were effective against third instar H. armigera larvae both on contact and by ingestion. Flubendiamide, acephate, methomyl, Bacillus thuringiensis, dimethoate, chlorantraniliprole and fipronil had good responses to control of H. armigera.

关键词： Bollworm Bioassay Chemical Control Insecticides Soybeans

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Mechanical properties and connectivity evaluation of a conductive coated piezoceramic/polymer composite

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Journal of Advanced Dielectrics 2014年第3期4卷 18-22页

作者： Gilberto de Campos Fuzari Jr Walter Katsumi Sakamoto Universidade Federal de Mato Grosso(UFMT)Campus do Araguaia Instituto de Ciencias Exatas e da Terra Barra do Garcas(MT)Brasil faculdade de engenharia Universidade Estadual PaulistaUNESP Campus de Ilha SolteiraDepto.de Fisica e Quimica Av.Brasil5615.385-000Ilha Solteira(SP)Brasil

In the present work,piezoelectric composite films made of Polyaniline(PAni)coated Lead Zirconate Titanate(PZT)particles immersed into polyvinylidene fluoride(PVDF)matrix were characterized by mechanical tests,and the connectivity of the com-posite sample was determined using dielectric measurements and applying the Poon–Shin *** composite was considered a binary system with coated PZT particles as one phase and the polymer matrix the other *** support the result obtained from theoretical analysis,scanning electron microscopy of the composites were *** was observed a decrease up to 85%on the mechanical resistance when the ceramic volume fraction increases from 0%to 40%.Furthermore,the composite film no longer can be considered with 0–3 connectivity when the ceramic content is 30 vol.%or over.

关键词： Piezoelectric composite mechanical resistance Poon-Shin model 0-3 connectivity

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含铌沉淀硬化不锈钢的耐蚀性评估(英文)

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热处理 2009年第4期24卷 25-28页

作者： L.C.Casteletti F.A.P.Fernandes A.Lombardi-Neto C.A.Picon G.E.Totten Escola de engenharia de Sāo Carlos-EESC-USP faculdade de engenharia de ilha solteira-FEIS-unesp Portland State University-Oregon-USA

应航空航天工业的需求,沉淀硬化不锈钢自1945年起即开始研发。这类钢具有置换型马氏体组织,随后能产生沉淀硬化。本文研究了两种含沉淀相形成元素铌的钢的力学性能和耐蚀性,并与PH13-8Mo钢进行了比较。结果表明,一种钢的耐蚀性与PH13-8M... 详细信息

应航空航天工业的需求,沉淀硬化不锈钢自1945年起即开始研发。这类钢具有置换型马氏体组织,随后能产生沉淀硬化。本文研究了两种含沉淀相形成元素铌的钢的力学性能和耐蚀性,并与PH13-8Mo钢进行了比较。结果表明,一种钢的耐蚀性与PH13-8Mo钢类似,另一种钢的力学性能与PH13-8Mo钢相近。

关键词：不锈钢沉淀硬化腐蚀

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铌和钛微合金化超级马氏体不锈钢在海水中点蚀机制的研究(英文)

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热处理 2010年第1期25卷 25-29页

作者： C.A.Picon F.A.P.Fernandes C.A.D.Rodrigues G.Tremiliosi-Filho L.C.Casteletti faculdade de engenharia de ilha solteira-FEIS-unesp Escola de engenharia de So Carlos-EESC-USP Instituto de Química de So Carlos-IQSC-USP

超级马氏体不锈钢(SMSS)在较高温度下具有良好的力学性能,并具有高的应力腐蚀断裂抗力和良好的可焊性,因此其在苛刻环境下的应用正日趋广泛。用于石油勘探的材料要求其具有优良的综合性能,双相不锈钢和超级双相不锈钢尽管价格昂贵,但仍... 详细信息

超级马氏体不锈钢(SMSS)在较高温度下具有良好的力学性能,并具有高的应力腐蚀断裂抗力和良好的可焊性,因此其在苛刻环境下的应用正日趋广泛。用于石油勘探的材料要求其具有优良的综合性能,双相不锈钢和超级双相不锈钢尽管价格昂贵,但仍在该领域得到了广泛应用,而具有技术和经济优势的SMSS能取代上述两种钢在石油勘探领域获得应用。通常,SMSS在许多加工行业也有望得到应用。本文研究了添加与未添加Nb或Ti的SMSS的点蚀机制和形貌。添加Nb和Ti是为了使敏化的影响减至最小,促进晶粒细化,并研究其对钢在海水中点蚀的影响,重点在于点蚀的形貌和腐蚀电位。添加与未添加Nb和Ti的钢具有相近的显微硬度和类似的回火马氏体组织。阳极极化曲线表明,用Nb微合金化的钢的腐蚀电位高于其他钢。对不同电位下点蚀的形成和扩展进行了重复试验,并采用光学显微镜进行观察。在工业用钢中,添加Ti的钢显示出了最佳的耐蚀性能——具有最高的腐蚀电位和较低的点蚀电位。添加Nb的钢尽管腐蚀电位较高,但其点蚀电位比未添加Nb的钢低。

关键词：超级马氏体不锈钢点蚀海水

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AISI316L不锈钢等离子氮碳共渗层的表征(英文)

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热处理 2009年第3期24卷 17-20页

作者： L.C.Casteletti F.A.P.Fernandes A.Lombardi-Neto C.A.Picon G.Tremiliosi-Filho G.E.Totten Escola de engenharia de Sāo Carlos-EESC-USP Escola de engenharia de ilha solteira-FEIS-unesp Instituto de Química de Sāo Carlos-IQSC-USP Portland State University-Oregon

奥氏体不锈钢通过等离子氮碳共渗可显著提高其表面硬度,从而提高耐磨性而又不损害其抗腐蚀性能。本文采用光学显微镜、显微硬度和微磨损试验对经于450℃等离子氮碳共渗的AISI 316L不锈钢和所获得的渗层进行了表征。结果证明,等离子氮碳... 详细信息

奥氏体不锈钢通过等离子氮碳共渗可显著提高其表面硬度,从而提高耐磨性而又不损害其抗腐蚀性能。本文采用光学显微镜、显微硬度和微磨损试验对经于450℃等离子氮碳共渗的AISI 316L不锈钢和所获得的渗层进行了表征。结果证明,等离子氮碳共渗层由氮化铬析出相和富氮奥氏体基体组成,其硬度约850 HV;渗层总深度平均约为45μm,且很均匀;渗层的耐磨性大大高于基体。

关键词：不锈钢等离子氮碳共渗磨损

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Non Linear Dynamic Crack Model Applied to State Observers Methodology for Fault detection, Localization and Evaluation in a Cantilever Beam

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Journal of Mathematics and System Science 2012年第6期2卷 384-392页

作者： Edson Luiz Valverde Castilho Filho Gilberto P. de Melo Vinicius Fernandes departamento de engenharia Mecdnica UNESP - Univ Estadual Paulista GMSINT llha Solteira - SP 15385-000 Brazil

The purpose of this work is the study of a mathematical model to discretize cracks at continuous mechanical systems, applying all the available properties at computational algorithm using the methodology of state observers to detect, localize and evaluate the crack conditions, seeking the model limitations through an experiment developed at the mechanical department of unesp, ilha solteira, Sao Paulo-Brazil. Three different notch sizes were placed, one by one, at the top surface of a cantilever beam (to be considered as a crack at the mechanical system) and harmonic forces were applied at the tip of the beam with three different frequencies, for each notch size, to obtain experimental data to run the diagnosis algorithm. From the results it was possible to infer that the observation system performance increases with the raising of the crack size, which can be explained by the model, that gets more accurate with bigger crack sizes, however, when the propagation of the crack is considered at the model, the diagnosis of the crack presence tends to be more difficult. It was also possible to conclude that the developed algorithm works properly for systems which excitation frequencies are higher than 20 Hz and different from the natural frequencies of the system, due to influence of dynamic response of the crack at the model.

关键词：非线性状态观测器裂纹模型故障检测悬臂梁定位机械系统裂纹尺寸评价

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