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Journal of Renewable Materials 2023年第11期11卷 3933-3943页

作者： Arnoldo e.Alfaro-Corres Daniel Gonzalez-Mendoza esau Ruiz-sanchez Carlos.ail-Catzin Benjamin Valdez-salas Federico Gutierrez-Miceli Arturo Reyes-Ramirez Jacques Fils Pierre Division of Postgraduate studies and Research Tecnologico Nacional de MéxicoCampus ConkalConkalYucatán97345Mexico institute of Agricultural sciences Universidad Autonoma de Baja CaliforniaEjido Nuevo LeonMexicaliBaja California21705Mexico instituto de ingeniería Universidad Autónoma de Baja CaliforniaMexicaliBaja California21100Mexico Division of Postgraduate studies and Research Tecnologico Nacional de MexicoCampus Tuxtla GutierrezTuxtla GutierrezChiapas29050Mexico

This work was carried out to evaluate the insecticidal effect of mono,bi and trimetallic nanoparticles(NPs)from leaf extract of habanero pepper(Capsicum chinense Jacq.)on the red flour beetle(Tribolium castaneum herbst.)and cotton mealybug(Phenacoccus solenopsis Tinsley).The results showed that Cu NPs,Cu/Mn NPs and Zn/Cu NPs had high insecticidal effect against ***(63%-80% mortality after 96 h).The Cu NPs and Zn/Cu NPs showed also insecticidal effect against ***,but to a lesser extent(20%–28% after 96 h).With regards to the physicochemical characterization,Cu NPs had a zeta potential of 21.1 mV,whereas Cu/Mn NPs and Zn/Cu NPs exhibited zeta potentials of 200 *** polydispersity index(PDi)values for Cu NPs,Cu/Mn NPs,and Zn/Cu NPs were 10.1,29.16,and 14.34,*** TF-iR spectra of the NPs varied from 600 to 4000 cm−*** eDX weight percentages showed the presence of Cu(0.29%–2.4%),Mn(1.4%),and Zn(2.6%)in Cu/Mn NPs and Zn/Cu NPs,respectively.

关键词： Phytonanoparticles botanical insecticide pest control agronanotechnology

insecticidal effect of Green Bimetallic Nanoparticles from Crotalaria longirostrata on Cotton Mealybug,Phenacoccus solenopsis

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Journal of Renewable Materials 2022年第10期10卷 2543-2552页

作者： Vianey Mendez-Trujillo Benjamín Valdez-salas Mario Curiel-Alvarez ernesto Beltran-Partida Arnoldo Alfaro-Corres esaúRuiz-sanchez Gerardo Bautista-Trujillo Olivia Tzintzun Camacho Onecimo Grimaldo-Juarez Carlos Ceceña-Duran Carlos.ail-Catzin Daniel González-Mendoza Facultad de Medicina de la Universidad Autónoma de Baja California Dr.Humberto Torres Sanginés S/NCentro CívicoMexicaliBaja CaliforniaMéxico instituto de ingeniería de la Universidad Autónoma de Baja California Calle de la Normal S/N y Boulevard Benito JuárezMexicaliBaja CaliforniaMéxico instituto Tecnológico de Conkal División de Estudios de Posgrado e InvestigaciónAntigua Carretera Mérida-MotulConkalYucatánMéxico Facultad de Medicina Veterinaria y Zootecnia de la Universidad Autónoma de Chiapas ChiapasMéxico Universidad Autónoma de Baja California Instituto de Ciencias AgrícolasBaja CaliforniaMéxico

The present study was conducted to evaluate the impact of bimetallic nanoparticles(NPs)of copper(Cu)and zinc(Zn)from Crotalaria longirostrata on the insect mortality and cell viability of Phenacoccus *** biosynthesis of bimetallic nanoparticles(Cu/Zn-NPs)from *** was confirmed by the presence of a single peak around 378 *** hydrodynamic diameter of the Cu/Zn nanoparticles varied from 59 to 119 nm and their zeta potential was found to be−30.90 *** eDX analysis showed a strong signal for Cu and Zn(8 and 8.6 keV,respectively).The Cu/Zn-NPs showed an effective insecticide activity against *** with 63%of insect mortality after 96 h ***,further studies about nanotoxicity of Cu/Zn-NPs from *** are needed to reveal the exact mechanism of nanoparticles toxicity in insects.

关键词： Phytonanoparticles chipilin biocontrol agronanotechnology

Treatment with enterococcus faecalis CeCT7121 is Not effective as Therapy in Mice with an established Allergy status

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Advances in Microbiology 2017年第10期7卷 696-706页

作者： ailén M.Díaz Matías A.Molina Guillermo G.Nunez Ana C.Mourelle Mónica D.sparo Marcela A.Manghi Marisa s.Castro Facultad de Farmacia y Bioquímica Universidad de Buenos AiresInstituto de Estudios de la Inmunidad Humoral“Prof.Dr.R.A.Margni”(IDEHUCONICET-UBA)Buenos AiresArgentina Cátedra Microbiología y Parasitología(CUDeMyP) Facultad de Ciencias MédicasUniversidad Nacional de La PlataLa PlataArgentina

in allergies, an unbalanced immune response towards a T helper (Th) 2 profile with high levels of immunoglobulin (ig) e is produced. We have demonstrated that the pre-administration of enterococcus faecalis CeCT7121 prevents the development of allergy in ovalbumin-immunized mice. in this work, we evaluated whether this bacterium can also revert an established allergic status. Mice were immunized with ovalbumin (OVA) and after that, were inoculated with an e. faecalis CeCT7121 suspension. in immunized animals, serum specific immune response, proliferative activity of memory splenocytes, and levels of Th2 cytokines were assessed. The in vivo active cutaneous anaphylaxis test was also performed. The treatment with e. faecalis CeCT7121 only increased anti-OVA igG2a levels. No differences were observed in other specific immunological parameters. Probiotic-treatment did not prove to have any desensitizing effect on mice. These results, together with those recently published, can be concluded that this bacterium would not be appropriate for the treatment of allergic symptoms.

关键词： enterococcus faecalis CeCT7121 Ovalbumin-Allergy Murine Model immunoglobulin e Th2 Cytokines Probiotics

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模压强化工艺及其数值仿真

计算机仿真 2007年第10期24卷 240-243,251页

作者：赵怀瑞王生武温爱玲大连交通大学机械工程学院辽宁大连116028 大连交通大学交通运输工程学院辽宁大连116028

对模压强化工艺过程进行有限元数值仿真过程中,利用普通的有限元模型无法真实地模拟压模对先模压端面凸起部分的挤压过程,从而无法真实地再现模压强化的过程,也就无法可靠地模拟强化后的残余应力、应变场,并且该部分节点由于与接触体脱... 详细信息

对模压强化工艺过程进行有限元数值仿真过程中,利用普通的有限元模型无法真实地模拟压模对先模压端面凸起部分的挤压过程,从而无法真实地再现模压强化的过程,也就无法可靠地模拟强化后的残余应力、应变场,并且该部分节点由于与接触体脱离往往会造成计算收敛困难。文中基于对实际模压工艺过程的观察,利用相对运动原理,在后端面模压工序前加了一个上工作台压向压模和工件的工况,解决了这个问题,且有限元计算结果和实测数值一致。

关键词：有限元模压强化残余应力工艺过程

AsPeCTs AND TReNDs iN siLK FiNisHiNG TODAY

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苏州大学学报（工科版） 1992年第S2期17卷 8-18页

作者： e. engeler

This paper introduces the current trend in silk finishing today and points out that all these trends haveinfluence on the silk processing industry.

关键词： silk processing industry aspects and trends

Performance of identical rockbolts tested on four dynamic testing rigs employing the direct impact method

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Journal of Rock Mechanics and Geotechnical engineering 2021年第4期13卷 745-754页

作者： Charlie C.Li John Hadjigeorgiou Peter Mikula Greig Knox Bradley Darlington Renee Royer Andrzej Pytlik Michael Hosp Norwegian University of science and Technology(NTNU) TrondheimNorway University of Toronto TorontoCanada Mikula Geotechnics Pty.Ltd. KalgoorlieAustralia New Concept Mining JohannesburgSouth Africa sandvik Mining&Rock Technology HeatherbraeAustralia CanmetMiNiNG Natural Resources CanadaOttawaCanada Central Mining institute KatowicePoland Minova Innovation and Development Ground SupportFeistritzAustria

impact drop tests are routinely used to examine the dynamic performance of *** impact tests have been carried out in the past decades on independently designed,constructed and operated testing *** laboratory has developed testing procedures;thus,the results are often reported in different ways by various *** inconsistency in testing procedures and reporting formats presents a challenge when comparing results from different laboratories.A series of impact tests of identical rockbolts was carried out using the direct impact method(*** mass free-fall method)on the rigs in four laboratories in different *** purpose of these tests was to investigate the level of consistency in the results from the four *** rig demonstrated a high level of repeatability,but differences existed between the various *** differences would suggest that there is noticeable equipment-dependent bias when test results obtained from different laboratories are *** was also observed that the energy dissipated for the plastic displacement of the bolt was smaller than the impact energy in the *** average impact load(ail)and the ultimate plastic displacement(D)of the bolt describe the ultimate dynamic performance of the *** the case where the bolt does not rupture,the specific plastic energy(sPe)is an appropriate parameter in describing the impact performance of the *** other relevant parameters are the first peak load(FPL)and the initial stiffness(K)of the bolt *** information from this test series will guide the formulation of standardised testing procedures for dynamic impact tests of rockbolts.

关键词： Dynamic test Drop test impact test Rockbolt Rock reinforcement Ground support

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对直接空冷机组排汽装置的发展趋势的研究

汽轮机技术 2006年第3期48卷 201-202页

作者：张俊芬崔增娥吴泽谦哈尔滨汽轮机厂有限责任公司哈尔滨150046

随着空冷机组容量的不断扩大,排汽装置已由单一型逐渐地向多功能型发展。较为详细地介绍了设置除氧功能排汽装置的必要性,阐述了除氧装置的几种布置结构,并对具有表面式换热器的排汽装置的应用特点进行了简要描述。

关键词：直接空冷机组排汽装置除氧换热

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洞庭湖区已建涵闸防螺工程运转状况评估

中国血吸虫病防治杂志 2004年第5期16卷 330-333页

作者：任茂元左家铮湖南省血吸虫病防治研究所岳阳414000

目的　评估洞庭湖区不同涵闸防螺工程的运转状况及防螺效果。方法　 2 0 0 0～ 2 0 0 1年对洞庭湖区全封堵法、栏网法、沉螺池法和接长降低进水管法 4种类型 85座改建的涵闸防螺工程进行现场勘察 ,询问当地血防站近年来对被改建涵闸相... 详细信息

目的　评估洞庭湖区不同涵闸防螺工程的运转状况及防螺效果。方法　 2 0 0 0～ 2 0 0 1年对洞庭湖区全封堵法、栏网法、沉螺池法和接长降低进水管法 4种类型 85座改建的涵闸防螺工程进行现场勘察 ,询问当地血防站近年来对被改建涵闸相关的垸内沟渠查螺情况。并对 2种类型 14座涵闸进行实地通水试验检测 ,每闸在通水运行中投放一定数量的染色钉螺 ,在工程后用 4 0孔 / 2 5 .4 mm的锥形套网回收。结果　现场勘察全封堵法除 1处外均已达到封严、封实 ,垸内排涝、抗旱水利设施调剂到位、垸内灭螺措施已到位的要求。栏网法均因网具保管维护难度大 ,后期管理不到位而失败。改建的 85座涵闸防螺工程 ,通过 4～ 10年的运行 ,到 2 0 0 3年被判断为有效的 6 7处 ,占改建工程的78.8%。通水试验的接长降低进水管法的 8座试验涵闸中 ,每闸运行 2 2～ 2 8h,每闸投放染色螺2 0 0 0只 ,工程后套网回收螺数为 0。沉螺池法的 6座试验涵闸中每闸运行 2 4～ 2 8h,每闸投放染色螺 2 0 0 0只 ,工程后套网回收螺数为 0。结论　洞庭湖区涵闸防螺改造工程中所采用的全封堵法、接长降低进水管法、沉螺池法均可达到防止钉螺扩散的效果。而栏网法因后期管理、维护难度大而不宜应用。

关键词：涵闸防螺工程沉螺池进水管