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rrep
 
4.736 (21-30)
NaslovAceria kuko (Kishida, 1927), (Acari: Eriophyidae) nova vrsta štetnika u fauni Makedonije i uspješnost mjera kemijske zaštite Aceria kuko (Kishida), (Acari:Eriophyidae) new type of pest in the fauna of Macedonia and the success in chemical measurements of protection / Tanas Trajčevski.
Materijalni opisIlustr.
Vrstačlanak
OpisU Republici Makedoniji 2014. godine, u nasadu goji bobica (Lycium chinense Mill.) u okolici sela Krivogaštani, primjećeni su simptomi zadebljanja na listovima biljaka goji. Simptomi su uočeni samo na uvezenim sadnicama, a do današnjih dana takve pojave nisu uočene na toj kulturi na tom području. Temeljem laboratorijskih analiza moglo se zaključiti da te simptome uzrokuje grinja Aceria kuko (Kishida). Prilikom promatranja ostalih nasada ove kulture u Republici Makedoniji, teško je odrediti precizno prvo pojavljivanje ove grinje. Tijekom 2014. i 2015. provedena je zaštita biljaka i to upotrebom slijedećih akaricida i insekticida, odnosno insekto-akaricida: Alverde (metaflumizen), Ethiol prah 5 (malathion), Talstar 10 EC (bifenitrin), Perfecthion (dimetoat), Vertimec 0,18 EC (abamectin). Na temelju rezultata iz 2014. godine zaključeno je da akaricid Vertimec 0,18 EC i insekto-akaricid Ethiol prah 5 postižu najviši indeks učinkovitosti koji iznosi 76% odnosno 73,1%. Insekticid Perfecthion pokazao je nešto niži indeks učinkovitosti koji je iznosio 56,5%. Tijekom pokusa provedenog 2015. godine rezultati su pokazali da je najveću učinkovitost imao insekticid Ethiol prah 5 s indeksom učinkovitosti od 72,9%, a nešto manju učinkovitost s indeksom od 71,6% je pokazao akaricid Vertimec 0,18 EC. Alverde je pokazao najniži indeks učinkovitosti u pokusima iz 2014. i 2015. godine te je njegov indeks učinkovitosti bio 50,3% odnosno 46,0%.
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21
NaslovAchievement goals and self-determination in adult football players : a cluster analysis / Hugo Sarmento, Miguel Peralta, Liam Harper, Vasco Vaz, Adilson Marques.
Materijalni opisIlustr.
Način izrade datotekeizvorno digitalna građa
Vrstačlanak
OpisTo better understand the relationship between aspects of motivation and performance level in adult football players, this study aimed to identify differences in motivation among different motivational profiles created by means of hierarchical cluster analysis. The participants were 304 adult football players (90 professionals, 144 semi-professionals, 70 amateurs, age: 25.4±4.6 years). Participants completed the Task and Ego Orientation in Sports Questionnaire and the Self-Regulation Questionnaire. Based on the constructs of the questionnaires, cluster analyses were performed. Chi-square was used to determine any relationships between the players and clusters. Four different clusters were identified. There was no typical motivational profile for football players of different competition levels. However, the differences in all four clusters represented specific characteristics of football players of different competition levels most represented in each respective cluster. Cluster 1, which was the most adaptive, was not related to any competition level. On the other hand, professional athletes were significantly less represented in the least adaptive motivational profile (Cluster 4). The results highlight the complex relationship between competition and sporting motivation. Identifying the motivational profile characteristics of football players who can reach higher competition levels presents itself as a future research opportunity.
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22
NaslovAchilles tendon / edited by Andrej Cretnik
ImpresumRijeka : InTech, 2012.
Materijalni opis156 str.
Vrsta publikacijeknjigae-knjiga
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23
NaslovA comparative study of LQR and integral sliding mode control strategies for position tracking control of robotic manipulators / Nor Mohd Haziq Norsahperi, Kumeresan A. Danapalasingam.
Materijalni opisIlustr.
Način izrade datotekeizvorno digitalna građa
Vrstačlanak
OpisThis paper provides a systematic comparative study of position tracking control of nonlinear robotic manipulators. The main contribution of this study is a comprehensive numerical simulation assessing position tracking performances and energy consumption of integral sliding mode control (ISMC), a linear-quadratic regulator with integral action (LQRT ), and optimal integral sliding mode control (OISMC) under three conditions; namely, Case I) without the coupling effect, Case II) with the coupling effect on Link 1 only, and Case III) with the coupling effect on Link 2 only. The viability of the concept is evaluated based on three performance criteria, i.e., the step-response characteristics, position tracking error, and energy consumption of the aforementioned controllers. Based upon the simulation study, it has been found that OISMC offers performances almost similar to ISMC with more than 90% improvement of tracking performance under several cases compared to LQRT; however, energy consumption is successfully reduced by 3.6% in comparison to ISMC. Energy consumption of OISMC can be further reduced by applying optimization algorithms in tuning the weighting matrices. This paper can be considered significant as a robotic system with high tracking accuracy and low energy consumption is highly demanded to be implemented in smart factories, especially for autonomous systems.
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NaslovA comparison of bound-constrained and positivity-constrained optimization method to estimate head tissue conductivities by scalp voltage information / Taweechai Ouypornkochagorn, Chollanant Khattiyawech, Natnicha Keatsiritawon.
Materijalni opisIlustr.
Način izrade datotekeizvorno digitalna građa
Vrstačlanak
OpisElectrical Impedance Tomography (EIT) is a noninvasive method used to estimate the conductivity of head tissues. Estimation based on the unconstrained Gauss-Newton (GN) method is conventional, but it may result in negative-value or extraordinary high-value estimates, which are unexpected. In this study, the bound-constrained method and the positivity-constrained optimization method were investigated and compared to the unconstrained optimization method. A two-dimensional model was created for conductivity estimation containing five head tissues, i.e., the scalp, the skull, the cerebrospinal fluid (CSF), grey matter (GM), and white matter (WM). The results showed that the accuracy, the robustness, and the estimation convergence of the estimation of this approach were significantly improved by constraining. All unexpected values also disappeared. The investigation proved that very high sensitivity of the skull region caused the unexpected outcome of the unconstrained cases. This high sensitivity can be significantly reduced by constraining. However, a degree of estimation nonlinearity can be increased by constraining as well, causing some estimation accuracies in the case of the positivity-constrained optimization method to be poor. Therefore, it is recommended to use only the bound-constrained optimization method.
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NaslovA compendium of essays on alternative therapy / edited by Arup Bhattacharya
ImpresumRijeka : InTech, 2012.
Materijalni opis294 str.
Vrsta publikacijeknjigae-knjiga
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26
NaslovA comprehensive survey of international soybean research : genetics, physiology, agronomy and nitrogen relationships / edited by James E. Board
ImpresumRijeka : InTech, 2013.
Materijalni opis626 str.
Vrsta publikacijeknjigae-knjiga
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NaslovAcoustic emission / edited by Wojciech Sikorski
ImpresumRijeka : InTech, 2012.
Materijalni opis410 str.
Vrsta publikacijeknjigae-knjiga
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28
NaslovAcoustic emission : research and applications / edited by Wojciech Sikorski
ImpresumRijeka : InTech, 2013.
Materijalni opis232 str.
Vrsta publikacijeknjigae-knjiga
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NaslovAcoustic waves / edited by Don Dissanayake
ImpresumRijeka : InTech, 2010.
Materijalni opis478 str.
Vrsta publikacijeknjigae-knjiga
rrep
30
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