8 research outputs found
Mikrobióta-diverzitás tanulmány fás növényeken, különös tekintettel a 'decline' folyamatokban részes nekrotróf parazita fajokra = Mycrobiota studies of trees with special attention to the parasitic, necrotropic species involved in decline processes.
29 gazdanövényről gyűjtött izolátum vizsgálata alapján 8 gazdanövényen Magyarországra vonatkozóan új Phomopsis faj előfordulását állapítottunk meg. Öt új, lisztharmatgombák okozta betegséget azonosítottunk, írtunk le: 1. Sphaerotheca pannosa jelentős fellépése meggyfajtákon. 2. Erysiphe carpinicola jelentős, járványos fellépése Carpinus betuluson. 3. Erysiphe elevata járványos fellépése Catalpa bignonioidesen 4. Erysiphe flexuosa járványos fellépése Aesculus hippocastanumon és más Aesculus fajokon. 5. Erysiphe palczewskii járványos fellépése Caragana arborescensen. Egyéb új gombák, betegségek és járványok azonosítása, kórokozók azonosítása: A fagyal (Ligustrum vulgare) Colletotrichum gloeosporioides okozta antraknózisának fellépése Magyarországon, a betegség és kórokozójának azonosítása. Taphrina pruni dérgomba okozta járvány Prunus cerasifera var. Nigrán: első hazai megállapítás. Két stresszpatogén Botryosphaeria faj: B. dothidea és B. ribis és anamorfjainak első hazai azonosítása, gazdanövényeik első kimutatása, fás növények leromlásos betegségeiben játszott szerepük tisztázása. Új kórokozó: Myriellina cydoniae fellépésének kimutatása Cydonia oblongán: első hazai megállapítás. Nekrotróf, stressz-patogén gombák azonosítása és ökológiai-patológiai szerepük tisztázása Sophora japonicán. Nekrotróf Cytospora fajok: C. leucostoma, . C. leucosperma előfordulásának kimutatása több új gazdanövényen. Új mikoparazita gomba: Stagonospora sp. leírása nekrotróf Botryosphaeria fajról. | Main results of the mycological and pathological studies are as follows: Collection of isolates of Phomopsis spp. from 29 host plant species. Characterisation of species has been done on the base of etiological, morphological, cultural and molecular studies. Phomopsis spp. identified on 8 host plants are new data in Hungary. Identification and description of two new stress-pathogenic Botryosphaeria spp. in Hungary: B. dothidea and B. ribis, and identification their host plants. Descriptions of 5 new powdery mildew diseases and their causal fungi in Hungary. Two of them are new data for Europe. (Sphaerotheca pannosa on sour cherry; Erysiphe carpinicola on Carpinus betulus; Erysiphe elevata on Catalpa bignonioides; Erysiphe flexuosa on Aesculus hippocastanum, A. carnea, A. pavia and A. glabra; Erysiphe palczewskii on Caragana arborescens. Descriptions of other new diseases in Hungary: privet anthracnose caused by Colletotrichum gloeosporioides; Epidemics on Prunus cerasifera 'Nigra' caused by Taphrina pruni; Leaf spot disease of quince caused by Myriellina cydoniae; identification and description of necrotrophic fungi on Sophora japonica; description of some new cases and woody host plants of Cytospora spp. Description of a new mycoparasitic species: Stagonospora sp. on Botryosphaeria stevensii
Többnyelvű dokumentum nyelvének megállapítása
A cikkben egy olyan algoritmust ismertetünk, amely alkalmas arra, hogy gyorsan és hatékonyan megállapítsa egy szövegrl nemcsak annak elsdleges természetes nyelvét, de többnyelv szöveg esetén a második nyelvet is – mindezt szótár nélkül egy módosított n-gram algoritmus segítségével. Az algoritmus jól mködik vegyes nyelv, akár szótárként felépített, szavanként változó nyelv dokumentumokon is
Quantification of low drug concentration in model formulations with multivariate analysis using surface enhanced Raman chemical imaging
High-sensitivity ion detection at low voltages with current-driven organic electrochemical transistors
Ions dissolved in aqueous media play a fundamental role in plants, animals, and humans. Therefore, the in situ quantification of the ion concentration in aqueous media is gathering relevant interest in several fields including biomedical diagnostics, environmental monitoring, healthcare products, water and food test and control, agriculture industry and security. The fundamental limitation of the state-of-art transistor-based approaches is the intrinsic trade-off between sensitivity, ion concentration range and operating voltage. Here we show a current-driven configuration based on organic electrochemical transistors that overcomes this fundamental limit. The measured ion sensitivity exceeds by one order of magnitude the Nernst limit at an operating voltage of few hundred millivolts. The ion sensitivity normalized to the supply voltage is larger than 1200 mV V-1 dec-1, which is the largest value ever reported for ion-sensitive transistors. The proposed approach is general and can be extended to any transistor technology, thus opening opportunities for high-performance bioelectronics
Unified drain-current model of complementary p- and n-type OTFTs
A unified drain current model of complementary (p- and n-type) organic thin film transistors (OTFTs) is presented. The model is physically based and takes into account the detailed properties of the organic semiconductor through the density of states (DOS). The drain current depends on the geometrical and physical parameters of the transistor, on the applied gate, drain and source voltages, and on the surface potential at the source and drain contacts. An analytical expression of the surface potential is derived. The proposed model is validated with the numerical calculations and the measurements of both p- and n-type OTFTs fabricated in a printed complementary technology. The provided analyses show that the model is continuous, accurate, and includes the main physical effects taking place in complementary organic transistors. Thanks to its analytical and symmetric formulation, it is suitable for the design of organic integrated circuits. Moreover, the unified physical picture provided by the model enables the extraction of the OTFTs physical parameters, thus it is a very powerful tool for the technology characterization
Assessment of recent process analytical technology (PAT) trends : a multiauthor review
This multiauthor review article aims to bring readers up to date with some of the current trends in the field of process analytical technology (PAT) by summarizing each aspect of the subject (sensor development, PAT based process monitoring and control methods) and presenting applications both in industrial laboratories and in manufacture e.g. at GSK, AstraZeneca and Roche. Furthermore, the paper discusses the PAT paradigm from the regulatory science perspective. Given the multidisciplinary nature of PAT, such an endeavour would be almost impossible for a single author, so the concept of a multiauthor review was born. Each section of the multiauthor review has been written by a single expert or group of experts with the aim to report on its own research results. This paper also serves as a comprehensive source of information on PAT topics for the novice reader