Avaliação de danos de Sitophilus zeamais em pomares de pessegueiro.

O objetivo do trabalho foi avaliar o potencial de danos causados por S. zeamais em pêssego

Material fragmentation as dissipative process of micro rotation sequence formation: Hybrid model of excitable cellular automata

The authors have developed a multi-level model of energy propagation along interfaces between the various structural elements of a solid with taking into account mutual energy transformations of various kinds. They have also designed a computer simulation tool based on the excitable cellular automaton (ECA) method. An algorithm for calculating the local moments of forces has been developed for the case of material rotation and torsion. The relationship for the accumulated elastic energy is supplemented with a dissipation term. Numerical experiments have been carried out on high-energy impact on polycrystalline copper specimens with different grain sizes. The paper shows that during the nanostructuring of material surface layer, the dissipation of elastic energy gives rise to the rotation of structural elements. This makes it possible to prevent the occurrence of stress concentrators with peak values typical of coarse-grained specimens and reducing their mechanical properties

Influence of stress concentrator shape and testing temperature on impact fracture regularities of pipeline steel

The structure and impact toughness of the pipeline 17Mn1Si steel have been studied. The main attention was paid to the analysis of various conditions of stress concentration under dynamic loadings. The process of strain localization with increasing stress state stiffness at the tip of the concentrator with decreasing testing temperature was investigated. Impact loading diagrams for specimens with various stress concentrator shapes were registered and analyzed

Efeito da altura do resíduo sobre a produção e a estrutura de sorgo forrageiro.

O cultivo de sorgo forrageiro (Sorghum bicolor (L.) Moench.) tem crescido na região Noroeste do Rio Grande do Sul nos últimos anos. Os produtores rurais estão sendo orientados a manejar o sorgo forrageiro em pastejo rotacionado, respeitando uma altura de entrada dos animais acima de 70 cm e altura de saída (resíduo) em torno de apenas 5 cm.bitstream/item/63868/1/BP31.pd

Efeito de iscas tóxicas sobre o parasitoide Diachasmimorpha longicaudata (Hymenoptera: Braconidae).

O objetivo do trabalho foi avaliar o efeito de iscas tóxicas sobre o parasitoide D. longicaudata por meio de testes por ingestão

Influence of stress concentrator shape and testing temperature on impact fracture regularities of pipeline steel

The structure and impact toughness of the pipeline 17Mn1Si steel have been studied. The main attention was paid to the analysis of various conditions of stress concentration under dynamic loadings. The process of strain localization with increasing stress state stiffness at the tip of the concentrator with decreasing testing temperature was investigated. Impact loading diagrams for specimens with various stress concentrator shapes were registered and analyzed

Characterization of meloidogyne species from irrigated rice in southern Brazil.

Edição dos Proceedings do 6th International Congress of Nematology, Cape Town, South Africa, May 2014

Influence of porosity on the deformation behaviour of systems with nanostructured thermal barier coatings

Based on the principal concepts of physical mesomechanics that take into account reversible structural-phase transformations in the rotational-wave flows at the interfaces, a new modification of the multilevel discrete-continuous method of excitable cellular automata (ECA) has been developed. The new modification explicitly takes into account the porosity and the nanocrystalline structure. Also, algorithms for calculating the local moments of forces and the angular velocities of microrotations arising in a structurally heterogeneous medium have been implemented. The model has been complemented by the dissipation conditions expressed for mechanical energy flows. On the basis of the method of excitable cellular automata, some numerical experiments on thermal loading of three-layered compositions with the intermediate layers of different structures have been carried out. It is shown that nanostructuring of the intermediate sublayer and the introduction of nanoporosity gives rise to a positive effect on the relaxation ability of thermal barrier coatings

Análise do comportamento de matrizes suínas lactantes com o uso de enriquecimento ambiental na maternidade.

Projeto/Plano de Ação: 02.09.07.007

Infomediaries as complementary knowledge channels of climate-smart agriculture in the Philippines

Four key findings can be drawn from this scoping study: (1) all sites are situated in agricultural communities where rice is widely grown along with other crops; (2) almost all (99%) of the students surveyed are aware of climate change and its possible impacts on rice; (3) schools are rated as primary sources of information on CSA (Sig 2-tailed t=0.05) with the teachers as champions; and (4) instances of adoption of CSA practices have been documented. As regards the first finding, this means that this project, being focused on CSA, is rightly located. This is an important point as location specificity and relevance are among the key considerations for climate change adaptation initiatives to be successful. The second point takes this initiative to the next level as it informs that the direction must shift to how to translate awareness to tangible actions as stand-alone climate change awareness campaigns are inadequate to move people to action. The key, therefore, is to reflect on how platforms for youth engagement to serve as infomediaries on CSA can be optimized to yield the best results. The third finding establishes that efforts to engage the schools, with the teachers as champions, are leading to the right direction. Hence, the discourse should move to how the teachers can best be capacitated so they can address the “adaptation deficit” on CSA. The fourth finding is among the raison d ‘etre of this initiative. Albeit on a small scale, instances of adoption of some CSA practices have taken place. Hence, this initiative must now focus on investigating, which prompted the adoption so this can be massively replicated in other sites where these technologies seem fit