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Combined Effect of CO<sub>2</sub> andTemperature on Wheat Powdery Mildew Development
Matic, Slavica,Cucu, Maria Alexandra,Garibaldi, Angelo,Gullino, Maria Lodovica The Korean Society of Plant Pathology 2018 Plant Pathology Journal Vol.34 No.4
The effect of simulated climate changes by applying different temperatures and $CO_2$ levels was investigated in the Blumeria graminis f. sp. tritici/wheat pathosystem. Healthy and inoculated plants were exposed in single phytotrons to six $CO_2$+temperature combinations: (1) 450 ppm $CO_2/18-22^{\circ}C$ (ambient $CO_2$ and low temperature), (2) 850 ppm $CO_2/18-22^{\circ}C$ (elevated $CO_2$ and low temperature), (3) 450 ppm $CO_2/22-26^{\circ}C$ (ambient $CO_2$ and medium temperature), (4) 850 ppm $CO_2/22-26^{\circ}C$ (elevated $CO_2$ and medium temperature), (5) 450 ppm $CO_2/26-30^{\circ}C$ (ambient $CO_2$ and high temperature), and (6) 850 ppm $CO_2/26-30^{\circ}C$ (elevated $CO_2$ and high temperature). Powdery mildew disease index, fungal DNA quantity, plant death incidence, plant expression of pathogenesis-related (PR) genes, plant growth parameters, carbohydrate and chlorophyll content were evaluated. Both $CO_2$ and temperature, and their interaction significantly influenced powdery mildew development. The most advantageous conditions for the progress of powdery mildew on wheat were low temperature and ambient $CO_2$. High temperatures inhibited pathogen growth independent of $CO_2$ conditions, and no typical powdery mildew symptoms were observed. Elevated $CO_2$ did not stimulate powdery mildew development, but was detrimental for plant vitality. Similar abundance of three PR transcripts was found, and the level of their expression was different between six phytotron conditions. Real time PCR quantification of Bgt was in line with the disease index results, but this technique succeeded to detect the pathogen also in asymptomatic plants. Overall, future global warming scenarios may limit the development of powdery mildew on wheat in Mediterranean area, unless the pathogen will adapt to higher temperatures.
Czar Luc E. Matic,Maria Liezel P. Caroche,Alan Marco S. Mercado,Marc Joseph S. Villanueva 아시아무역학회 2021 Journal of Asia Trade and Business Vol.8 No.1
Purpose - The presence of inaccurate inventory records in an inventory system of a manufacturing company can result to production interruptions, stock-out of parts, and unnecessary expediting of components. This study attempted to fill in the gap on detecting the causes of inventory inaccuracy and how each cause can be solved through process improvement and information system development solutions. Design/Methodology/Approach - The study first identified the business processes, along with their key requirements and critical processes, that involved handling inventory through a SIPOC analysis. Root cause analysis was used to pinpoint the different failure modes of each critical process and classify which cause of inventory inaccuracy can be solved within the study scope. The poka-yoke analysis was used to spot the different system requirements for each of the identified cause of inventory inaccuracy while being consistent with their key requirements to ensure failproof solutions. The proposed information system was developed along with the concepts bound within inventory management and control and the obtained system requirements. The proposed information system was tested through feasibility and simulation tests to determine its current quality level and projected improvement in inventory accuracy. Findings - Results from the process and root cause analysis identified the causes of inventory inaccuracy in the company to come from reasons of system incapability, product nature, process restrictions and current process practices. The proposed information system provides data recording and collection capabilities, scheduling capabilities, summary and overview of warehouse locations, monitoring and updates of inventory, and customizable location entities. The proposed information system will be integrated with the current inventory system of the company by replacing and adding some of the current system’s functions. Its overall single usability metric score from 10 participants obtained an average 2.7324 process sigma and an average of 85.97% quality level. From the simulation tests, the projected increase in inventory accuracy is 45%. Research Implications - By replacing some of the current system’s functions, the proposed information system was able to add more critical information in the inventory records and capability for the personnel involved, which is projected to increase inventory accuracy and allow the personnel to manage and monitor inventory at a higher level.
Luka Suhadolnik,Matic Krivec,Kristina Žagar,Goran Dražic,Miran Ceh 한국공업화학회 2017 Journal of Industrial and Engineering Chemistry Vol.47 No.-
A continuous-flow, coil-type photoelectrocatalytic microreactor for the degradation of caffeine wasdesigned, assembled and characterized. Its main components are the photocatalytically active anode andthe cathode coils, which are wrapped around a silica-glass rod and placed into a UV-transparent housing. The anode coil was prepared by anodic oxidation of the titanium coil, which leads to the formation ofvertically aligned, titanium dioxide, nanotube arrays that exhibit a high photocatalytic activity and arerigidly attached to the titanium wire. The photocatalytic, electrocatalytic and photoelectrocatalyticactivities of the assembled microreactor were measured systematically while changing the mainparameters that affect the device’s efficiency. The most significant change in the microreactor’s design interms of efficiency was to place the cathode coils on both sides of the anode coil, which resulted in theshortest time for complete degradation of the caffeine. When an applied anodic bias potential of 4 V wasused in the most efficient microreactor design, 1 mL of the 40 mg/L caffeine was fully decomposed in55 min.
On Gram's determinant in $n$-inner product spaces
조열제,Marko Matic,Josip Pevcaric 대한수학회 2004 대한수학회보 Vol.41 No.4
An analogue of the Gram's inequality for n-innerproduct spaces is given. Further, a number of inequalitiesinvolving Gram's determinant are stated and proved in terms ofn-inner products.
INEQUALITIES OF HLAWKA'S TYPE IN n-INNER PRODUCT SPACES
Cho, Y.J.,Matic, M.,Pecaric, J. Korean Mathematical Society 2002 대한수학회논문집 Vol.17 No.4
In this paper, we give Hlawka's type inequalities and related results in n-inner product spaces.
ON GRAM′S DETERMINANT IN n-INNER PRODUCT SPACES
Cho, Y.J.,Matic, M.,Pecaric, J. Korean Mathematical Society 2004 대한수학회보 Vol.41 No.4
An analogue of the Gram's inequality for n-inner product spaces is given. Further, a number of inequalities involving Gram's determinant are stated and proved in terms of n-inner products.
ON GRAMS DETERMINANT IN 2-INNER PRODUCT SPACES
Cho, Y.J.,Matic, M.,Pecaric, J. Korean Mathematical Society 2001 대한수학회지 Vol.38 No.6
An analogue of Grams inequality for 2-inner product spaces is given. Further, a number of inequalities involving Grams determinant are stated and proved in terms of 2-inner products.
Rade Surudzic,Ana Jankovic,Miodrag Mitric,Ivana Matic,Zorica D. Juranic,Ljiljana Zivkovic,Vesna Miskovic-Stankovic,이경엽,박수진,David Hui 한국공업화학회 2016 Journal of Industrial and Engineering Chemistry Vol.34 No.-
Poly(vinyl alcohol)/graphene (PVA/Gr) nanocomposite was synthesized with the aim of developing anovel improved material. The PVA/Gr nanocomposite was characterized by UV–visible spectroscopy,cyclic voltammetry, Raman spectroscopy, X-ray diffraction, Fourier transform infrared spectroscopy, andX-ray photoelectron spectroscopy analyses, and the interaction of PVA molecules with graphene wasexamined. Introduction of Gr led to improved mechanical and thermal properties of the PVA/Grnanocomposite compared to pure PVA, as well as strong antibacterial activity against the bacterial strainStaphylococcus aureus. The PVA/Gr nanocomposite was non-cytotoxic against healthy peripheral bloodmononuclear cells by MTT assay, indicating its high potential for biomedical applications.
Parametric Model Variability of the Proximal Femoral Sculptural Shape
Suzana Petrovic Savic,Branko Ristic,Zoran Jovanovic,Aleksandar Matic,Nikola Prodanovic,Nabil Anwer,Lihong Qiao,Goran Devedzic 한국정밀공학회 2018 International Journal of Precision Engineering and Vol.19 No.7
In this paper, a method of parameterisation of a proximal femur model is presented. The created model retains all the anatomical and morphological features of a realistic model. The parametric model of the femur, the so-called master model, is defined by establishing a relation between appropriate femoral regions which extend along the parametrically described axis of the femur. An initial 3D model of the femur is segmented from the CT image and further parameterized to a master model with the potential for customization, i.e. for adaptation to patient-specific values using X-ray images, still maintaining precise anatomical consistency. The first step towards the femur customization is the contour extraction of different types of tissues represented in X-ray images. As medical images can be blurry, image processing was carried out and a Canny edge detector operator was applied. The numerical values of the parameters were determined by manual measuring of defined regions on an X-ray image. The variability testing was performed on 12 femurs. The proposed model can greatly contribute to preoperative planning, implant selection, as well as to the overall shortening of intervention time.