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Syutkina J. - One of the best experts on this subject based on the ideXlab platform.

  • The reliability of the contact switching of the measuring signal
    2020
    Co-Authors: Dmitriev S., Syutkina J.
    Abstract:

    © 2016 IEEE.The analysis of the factors affecting reliability of the sealed contact in measuring chains of automated test systems is held. A number of factors of influence is attributed to the advantages of reed switches. Disadvantages of reed switches are divided into two groups, depending on the structural properties of the reed switch and the applied Management methods. The paper presents analytical study of performance switching reliability in switching keys with serial, parallel and series-parallel key schemes with possible options enable leakage resistance. Unique positive properties of the contacts and insulation resistance of reeds defines characteristics of the 'perfect key'. The advantages of Matrix Management schemes were confirmed for many channel systems at automated testing of gas turbine engines. The solution the problem of increasing reliability of the contact switching at low-level signals (up to 50 mV) from thermocouples and strain gauges is provided. The description of the mechanisms of action fritting in the surface layers of the contacting surfaces, including reed switches is given

  • The performance Matrix of the contact switch of the measuring signals
    2017
    Co-Authors: Dmitriev S., Syutkina J.
    Abstract:

    © 2016 IEEE.Detailed analysis of transients when switching channels of switch contact held and dependences of mutual influence of channels on the signal frequency parasitic capacitance and conductance of the active component of open switch channels is introduced. Recommendations on magneto controllable contacts Matrix Management providing the required level of reliability, performance and accuracy of measurement automation object parameters are given. The data on experimental verification and implementation of Matrix contact switches at using reed switches are provided. Variations of design versions of matrices with reed switches meet different requirements for speed and efficiency: two and three coordinate independent groups managing the tires; without bias currents; with bias currents; passive and active contact opening. The components of the overall performance of the Matrix-switching unit and evaluating of each constituent element of the switching process are given. The prospects of further improvement of the Matrix of contact switches are depicted

Dmitriev S. - One of the best experts on this subject based on the ideXlab platform.

  • The reliability of the contact switching of the measuring signal
    2020
    Co-Authors: Dmitriev S., Syutkina J.
    Abstract:

    © 2016 IEEE.The analysis of the factors affecting reliability of the sealed contact in measuring chains of automated test systems is held. A number of factors of influence is attributed to the advantages of reed switches. Disadvantages of reed switches are divided into two groups, depending on the structural properties of the reed switch and the applied Management methods. The paper presents analytical study of performance switching reliability in switching keys with serial, parallel and series-parallel key schemes with possible options enable leakage resistance. Unique positive properties of the contacts and insulation resistance of reeds defines characteristics of the 'perfect key'. The advantages of Matrix Management schemes were confirmed for many channel systems at automated testing of gas turbine engines. The solution the problem of increasing reliability of the contact switching at low-level signals (up to 50 mV) from thermocouples and strain gauges is provided. The description of the mechanisms of action fritting in the surface layers of the contacting surfaces, including reed switches is given

  • The performance Matrix of the contact switch of the measuring signals
    2017
    Co-Authors: Dmitriev S., Syutkina J.
    Abstract:

    © 2016 IEEE.Detailed analysis of transients when switching channels of switch contact held and dependences of mutual influence of channels on the signal frequency parasitic capacitance and conductance of the active component of open switch channels is introduced. Recommendations on magneto controllable contacts Matrix Management providing the required level of reliability, performance and accuracy of measurement automation object parameters are given. The data on experimental verification and implementation of Matrix contact switches at using reed switches are provided. Variations of design versions of matrices with reed switches meet different requirements for speed and efficiency: two and three coordinate independent groups managing the tires; without bias currents; with bias currents; passive and active contact opening. The components of the overall performance of the Matrix-switching unit and evaluating of each constituent element of the switching process are given. The prospects of further improvement of the Matrix of contact switches are depicted

Hansen Nicole - One of the best experts on this subject based on the ideXlab platform.

  • Herpetofauna responses to agricultural Matrix Management
    2018
    Co-Authors: Hansen Nicole
    Abstract:

    Preventing biodiversity loss in fragmented agricultural landscapes is a global problem that requires knowledge of how species move through landscapes. Farming practices can increase the contrast between remnant patches of native vegetation and adjoining habitats, with negative consequences for species movement and the preservation of biodiversity. Yet, the relationships between habitat attributes and the presence of species are poorly understood, and the mechanisms influencing cross-habitat movement has rarely been empirically tested, particularly for less mobile organisms such as frogs, snakes and lizards (herpetofauna). To address this important knowledge gap, I used a large-scale, empirical experiment to examine herpetofauna abundance, species richness, body condition, risk of predation, and inter-habitat movement between remnant woodland patches, edges and four contrasting farm land use types: 1) crop fields, 2) pasture paddocks, 3) linear plantings, and 4) woody mulch applied to a crop paddock after harvest. I also examined the effect of crop harvesting and seasonal effects on the distribution and abundance of herpetofauna. In the second and third chapters of the thesis, I compared the habitat preferences and abundance and, richness and body condition (frogs only) of reptiles and frogs to predictions developed from a conceptual Matrix model and literature review. I found the structure and quality of the Matrix was a stronger influence on reptile abundance, species richness and movement than the temporal effect of crop harvesting (chapter 2). My results demonstrate remnant patches and farmland, particularly those with woody vegetation plantings, can provide suitable habitat for common reptile species, but this environment is not readily interchangeable as habitat for uncommon reptile species. The negative response of uncommon reptile abundance and species richness to farmland, irrespective of restoration, indicate that farmland not only reduced their abundance but also the likelihood of presence. I also observed a negative trend in uncommon reptile abundance in remnant patches adjacent to crop paddocks. These findings suggest that crop paddocks and associated farming activities may be negatively influencing animals within both patches and Matrix, further isolating populations, and reinforcing the negative consequences of conversion to agriculture for reptile populations. In Chapter three, my study revealed while frog abundance was positively associated with woody vegetation plantings within farmland, many frog species were found ubiquitously throughout the landscape, reflecting the dominance of a few disturbance tolerant species in the amphibian assemblage. My movement data demonstrated that frogs used multiple farmland types, moved between remnant patches and farmland, and into and out of cropped paddocks across harvesting periods. Unexpectedly, I found crop harvesting did not reduce frog abundance in crop paddocks, with some individuals persisting in farmland after harvesting. Body condition analyses indicated that farmland areas may provide good quality habitat for frogs and allow movement, dispersal, and foraging opportunities. My findings provide important insights into the utilisation of highly modified farmland as terrestrial habitat for frogs. This new knowledge is valuable in the context of land use intensification, and global amphibian declines. While much effort has focused on the protection of aquatic habitats for amphibians, Management strategies must also consider the range of contrasting farmland types present in cropping areas, and the habitat requirements of the target species. In the fourth chapter, I explored how contrasting habitats and farm Management influences predation risk in lizards using wildlife cameras and plasticine replica lizard models. I found predation pressure from multiple predators, operating across the landscape, could be compounding the effects of habitat degradation and fragmentation. Predation attempts on models were highest at habitat edges, with a reduced risk within farmland and remnant patches. My findings suggest edge habitats are ‘risker’ for lizards than farmland, and may act as a population sink, preventing reptiles from moving into the farmland if individuals suffer increased mortality at the edge. Such trends have not been previously reported for cropped landscapes. Finally, in the fifth chapter, I examined detailed movement patterns and behavior of a patch-dependent gecko species, Eastern Tree Dtella Gehyra versicolor, using radio-telemetry, fluorescent powder and an experiment displacement to examine movement and avoidance behaviour in response to different woodland to farmland edges. Unexpectedly, I found edge effects with a strong partitioning of individuals away from farmland, irrespective of the presence of complex habitat (e.g. linear plantings), in preference for remnant patches. We found pasture environments promoted direct movements of displaced geckos at a set distance from remnant patches into pastures. However, none of the radio-tracked geckos crossed the woodland-pasture edge, suggesting pastures may reduce homing ability of geckos. These findings contrast with the known ecology of the species and suggest, despite efforts to improve farmland quality by planting, farmland is not a preferred habitat for this species and does not promote longer distance dispersal movements. By examining the influence of anthropogenic habitat change on herpetofauna it is possible to improve our understanding of the distribution of species outside of remnant native vegetation. My research findings provide new insights into the complex responses of herpetofauna to contrasting farmland uses in cropping landscapes. I provide evidence for potential drivers to explain herpetofauna distribution within highly disturbed areas. Importantly, I have demonstrated the relative value of different farmland types for facilitating and reducing movement and providing habitat across diverse agricultural landscapes. Through my series of inter-connected studies, I highlight important opportunities to promote herpetofauna conservation in agricultural landscapes by protecting remnant native vegetation and by increasing restoration efforts in cropping landscapes by establishing linear plantings. I also identify Management practices to reduce mortality risk in areas where dispersal may be important by focusing on implementing strategies that increase shelter opportunities for lizards and to reduce the size of edges particularly where dispersal may be important (such as between remnants and linear plantings). This new knowledge is valuable in the context of promoting landscape connectivity, targeted restoration programs, and arresting global herpetofauna decline

Mukhlis Maulana - One of the best experts on this subject based on the ideXlab platform.

  • PRIORITAS STRATEGI PENGHAPUSAN BENTUK-BENTUK PEKERJAAN TERBURUK UNTUK ANAK DI PROVINSI LAMPUNG DALAM PERSPEKTIF TIME Matrix Management
    'UIR Press', 2018
    Co-Authors: Mukhlis Maulana
    Abstract:

    One focus of the twelve categories of children who need attention to be protected is child labor in its various forms. Child labor (according to Law No. 1 of 2000 on the ratification of ILO Convention No. 182 concerning the prohibition and immediate action for the elimination of the worst forms of child) includes children who are physically and economically. Lampung Province has 165 402 child labor (child labor instead of child work) in the 5-17 year age category. The amount is greatly influenced by factors of poverty. The purpose of this study is to provide recommendations (suggestions) policies and strategies for the elimination of the worst forms of child in Lampung province so that the entire classification (forms of) child labor as stipulated in Law No. 1 Year 2000 can be accommodated. By using a rational approach comprehensively in the stages of policy formulation, the results showed that although had been many efforts in the province of Lampung (institutional aspects and programs), but there are still problems in the similarity measures and actions among stakeholders in the handling of child labor and have not effective institutions that have been established. Also a weakness in this aspect of policy substance. Therefore, the policy recommended is (a) data collection and mapping by name by address, (b) campaigns and dissemination of information, (c) assessment and development model of the elimination of the worst forms of child labor, (d) harmonization of the rules of the area, (e ) strengthening institutional capacity, (f) the handling of integration and cooperation, (g) the guidance and protection by sector, namely in the field of education, health, employment, social, cultural, and economic

Eva Hurt-camejo - One of the best experts on this subject based on the ideXlab platform.

  • Matrix Management: assigning different roles for MMP-2 and MMP-9 in vascular remodeling. Arterioscler Thromb Vasc Biol. 2004; 24: 10–11
    2016
    Co-Authors: Carl Whatling, William Mcpheat, Eva Hurt-camejo
    Abstract:

    Geometric remodeling is an important component ofvascular pathologies, including restenosis and ath-erosclerosis. Although our understanding of the pre-cise events involved in vascular remodeling is far from complete, it is generally accepted that local breakdown of extracellular Matrix (ECM), smooth muscle cell migration, and Matrix reorganization are important components.1 In this respect, particular attention has been directed toward the role of Matrix metalloproteinases (MMPs), enzymes capable of remodeling the ECM. However, being able to understand the specific contribution of individual members of a proteinase family that share overlapping substrates is a significant challenge. See page 54 MMPs are Zn-containing neutral endopeptidases. At least 23 different MMPs have been identified that, as a family, have the capacity to degrade all components of the ECM, in addition to some nonMatrix substrates.2 Within the family, several subgroups exist, based on substrate specificities or domain structures. The activity of MMPs is controlled at several distinct levels, including transcription, activation of zymogens, and interaction with specific inhibitors, the TIMPs (tissue inhibitors of MMPs). The two gelatinases MMP-2 and MMP-9 have received particular attention in analysis of vascular remodeling due to their expression by smooth muscle cells and leukocytes and ability to breakdown com-ponents of the basement membrane and collagens. At least in vitro, both enzymes have a very similar substrate profile. However, their expression in the vascular wall is differently controlled, in that a basal expression of MMP-2 can be detected within the media, whereas MMP-9 expression is only apparent after injury or inflammatory stimulation. Like-wise, activation of these two MMPs can be mediated differ-ently, and they may interact selectively with different TIMP