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Silicon nanowire formed via shallow anisotropic etching Si-ash-trimming for specific DNA and electrochemical detection

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Chinese physics B 2015年第6期24卷 607-612页

作者： Tijjani Adam U.HAshim th S.Dhahi Institute of Nano Electronic Engineering(INEE) Universiti Malaysia Perlis(UniMAP) physics Department College of Education for Pure ScienceBasra University

A functionalized silicon nanowire field-effect transistor （SiNW FET） was fabricated to detect single molecules in the pM range to detect disease at the early stage with a sensitive, robust, and inexpensive method with the ability to provide specific and reliable data. the device was designed and fabricated by indented ash trimming via shallow anisotropic etching. the approach is a simple and low-cost technique that is compatible with the current commercial semiconductor standard CMOS process without an expensive deep reactive ion etcher. Specific electric changes were observed for DNA sensing when the nanowire surface was modified with a complementary captured DNA probe and target DNA through an organic linker （--OCH2CH3） using organofunctional alkoxysilanes （3-aminopropyl） triethoxysilane （ApTES）. With this surface modification, a single specific target molecule can be detected. the simplicity of the sensing domain makes it feasible to miniaturize it for the development of a cancer detection kit, facilitating its use in both clinical and non-clinical environments to allow non-expert interpretation. With its novel electric response and potential for mass commercial fabrication, this biosensor can be developed to become a portable/point of care biosensor for both field and diagnostic applications.

关键词： silicon nanowire biosensor specific DNA detection anisotropic etching Si-ash-trimming semi-conductor pH sensor

Revealing the topological phase diagram of ZrTe_(5) using the complex strain fields of microbubbles

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npj Computational Materials 2022年第1期8卷 1685-1691页

作者： Zoltán Tajkov Dániel Nagy Konrád Kandrai János Koltai LászlóOroszlány péter Süle Zsolt EHorváth péter Vancsó Levente Tapasztó péter Nemes-Incze Centre for Energy Research Institute of Technical Physics and Materials Science1121BudapestHungary Department of physics of Complex Systems ELTE Eötvös Loránd University1117BudapestHungary ELTE Eötvös Loránd University Department of Biological Physics1117BudapestHungary Budapest University of Technology and Economics 1111BudapestHungary

Topological materials host robust properties,unaffected by microscopic perturbations,owing to the global topological properties of the bulk electron *** in which the topological invariant can be changed by easily tuning external parameters are especially sought *** pentatelluride(ZrTe_(5))is one of a few experimentally available materials that reside close to the boundary of a topological phase transition,allowing the switching of its invariant by mechanical ***,we unambiguously identify a topological insulator–metal transition as a function of strain,by a combination of ab initio calculations and direct measurements of the local charge *** model quantitatively describes the response to complex strain patterns found in bubbles of few layer ZrTe_(5) without fitting parameters,reproducing the mechanical deformation-dependent closing of the band gap observed using scanning tunneling *** calculate the topological phase diagram of ZrTe_(5) and identify the phase at equilibrium,enabling the design of device architectures,which exploit the topological switching characteristics of the system.

关键词： density topological invariant

Charles S. peirce’s philosophy of Value

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Language and Semiotic Studies 2021年第3期7卷 55-67页

作者： Winfried Nöth pontifical Catholic University of São paulo Brazil

the critical analysis examines the concept of value in ***’s philosophical writings,distinguishing between value as(1)worth,(2)meaning,(3)significance,(4)semiotic value,(5)in the mathematical sense,(6)money value,and(7)value by other *** focus is on value in the sense of peirce’s three normative sciences aesthetics,ethics,and *** values associated with them are detailed in their phenomenological contexts and with respect to a supreme value,the summum ***’s objections against utilitarian conceptions of value in the philosophy of his century and his conception of scientific research as a value in itself are the author’s final topic.

关键词： Charles S.peirce value axiology philosophy of value normative science pure esthetics ethics logic summum bonum science

Brillouin distributed time-domain sensing in optical fibers:state of the art and perspectives

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Frontiers of Optoelectronics 2010年第1期3卷 13-21页

作者： Luc théVENAZ Ecole polytechnique Fédérale de Lausanne Institute of Electrical Engineering

Optical fiber sensors based on stimulated Brillouin scattering have now clearly demonstrated their excellent capability for long-range distributed strain and temperature measurements. the fiber is used as sensing element, and a value for temperature and/or strain can be obtained from any point along the fiber. After explaining the principle and presenting the standard implementation,the latest developments in this class of sensors will be introduced, such as the possibility to measure with a spatial resolution of 10 cm and below while preserving the full accuracy on the determination of temperature and strain.

关键词： 67\39\d8\a1\hcm0000111213.html

Non-tidal tilt and strain signals recorded at the Geodynamic Observatory Moxa,thuringia/Germany

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Geodesy and Geodynamics 2018年第3期9卷 229-236页

作者： th.Jahr Institute of Geosciences Friedrich Schiller University Jena

Since end of the 90s of the last century the seismological station Moxa was extended and developed into the modern Geodynamic Observatory. It comprises also the new installation of borehole-tilt meters in front of the observatory building and laser-strain meters in the gallery. the question arises how non-tidal signals are displayed in the measured time series. the investigation of such signals which can be caused naturally or man-made, can result in different sensitivities for the various tilt- and strainmeter systems, e.g. regarding barometric pressure impacts and hydrological induced pore pressure effects.

关键词： Tilt and strain observations Non-tidal effects Man-made effects pore-pressureInduced tilt and strain Geodynamic Observatory

Drying of suspensions and solutions on inert particle surface in mechanically spouted bed dryer

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China particuology 2007年第5期5卷 337-344页

作者： Elisabeth pallai-Varsányi Judit Tóth János Gyenis University of pannonia Faculty of Information TechnologyResearch Institute of Chemical and Process Engineering Egyetem u. 2H-8200 VeszprémHungary Hungarian Academy of Sciences Chemical Research CentreInstitute of Materials and Environmental ChemistryPusztaszeri u. 59-67H-1025 BudapestHungary

To eliminate some disadvantages of the conventional spouted bed dryers the mechanically spouted bed （MSB） system was developed. this dryer type is convenient to use inert particles providing an increased surface area for drying of materials of high-moisture content and heat sensitive materials. On three different drying tasks are demonstrated the experimental optimization of process parameters to obtain products of demanded quality. the main object was at drying of AIO（OH） suspension to preserve the particle size under 2.5μm and to obtain product with a moisture content of about 0.05 kg/kg （d.b.）. For this reason a very thin particle coating and intensive abrasion had to be assured. At drying of tomato concentrates the thermoplasticity makes the process very difficult. To jump over the deliquescent and sticky state developed at the critical temperature-moisture content values a very short drying time （8-10 s） must be provided. the third task was to form powder-like product from bovine serum albumin （BSA） solution having very low solid content （2-4%）. the selected process parameters given in this paper resulted in a mean particle size of less than 20 μm while the soluble oreserved orotein content was higher than 90%.

关键词： Mechanically spouted bed Film-like drying Inert particles Heat sensitive material

Rule based vs Optimization based Workload Control with and without Exogenous Lead Times:An Assessment by Simulation

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Journal of Systems Science and Systems Engineering 2023年第5期32卷 553-570页

作者： Mingze Yuan Ting Qu Matthias thürer Lin Ma Lei Liu School of Management Jinan UniversityGuangzhou510632China GBA and B&R International Joint Research Center for Smart Logistics Jinan UniversityZhuhai519070China School of Intelligent Systems Science and Engineering Jinan UniversityZhuhai519070China Institute of physical Internet Jinan UniversityZhuhai519070China Factory planning and Intralogistics Chemnitz University of TechnologyChemnitz09125Germany Department of Industrial and Systems Engineering The Hong Kong Polytechnic UniversityHong Kong999077China

Order release is a key production planning and control function,specifically in high variety contexts.A large literature on release methods that balance the workload consequently *** Workload Control methods can be rule based,using a simple greedy heuristic,optimization based or optimization based with lead times that are *** all three types of methods have the same objective,their performance has never been *** simulation,this study shows that a better on time delivery performance of jobs can be achieved by the two optimization based release *** importantly,optimization based methods that assume lead times to be exogenous significantly outperform alternative methods in terms of tardiness *** based and optimization based Workload Control without exogenous lead times overemphasize average lateness reduction,which leads to sequence deviations that offset performance improvements through *** contrast,Workload Control methods that assume lead times to be exogenous limit sequence deviations,which leads to a significant reduction in dispersion of *** has important implication for the future design of order release methods,and managerial practice.

关键词： Workload control order release production planning production control make-to-order production

Room-Temperature Synthesis of Fe-containing Mesoporous Silica

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Chinese Chemical Letters 1996年第11期7卷 1057-1058页

作者： Yuan, ZY Chen, th Wang, JZ Li, HX NANKAI UNIV DEPT CHEMTIANJIN 300071PEOPLES R CHINA

A Fe-containing mesoporous silica has been synthesized at room temperature using alkylamine as templating surfactant; XRD, IR, ESR and Si-29 MAS NMR spectra provided evidence of the presence of framework and non-frame... 详细信息

关键词： Fe Room-Temperature Synthesis of Fe-containing Mesoporous Silica

Algorithm fusion to improve detection of lung cancer on chest radiographs

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International Journal of Intelligent Computing and Cybernetics 2012年第1期5卷 111-144页

作者： Gergely Orbán Gábor Horváth Department of Measurement and Information Systems Budapest University of Technology and EconomicsBudapestHungary Intelligent Systems Research Group Budapest University of Technology and EconomicsBudapestHungary

purpose-the purpose of this paper is to show an efficient method for the detection of signs of early lung *** image processing algorithms are presented for different types of lesions,and a scheme is proposed for the combination of ***/methodology/approach-A computer aided detection(CAD)scheme was developed for detection of lung *** enables different lesion enhancer algorithms,sensitive to specific lesion subtypes,to be used *** image processing algorithms are presented for the detection of small nodules,large ones,and infiltrated *** outputs are merged,the false detection rate is reduced with four separated support vector machine(SVM)*** classifier input comes from a feature selection algorithm selecting from various textural and geometric features.A total of 761 images were used for testing,including the database of the Japanese Society of Radiological Technology(JSRT).Findings-the fusion of algorithms reduced false positives on average by 0.6 per image,while the sensitivity remained 80 per *** the JSRT database the system managed to find 60.2 per cent of lesions at an average of 2.0 false positives per *** effect of using different result evaluation criteria was tested and a difference as high as 4 percentage points in sensitivity was *** system was compared to other published ***/value-the study described in the paper proves the usefulness of lesion enhancement decomposition,while proposing a scheme for the fusion of ***,a new algorithm is introduced for the detection of infiltrated areas,possible signs of lung cancer,neglected by previous solutions.

关键词： programming and algorithm theory Image processing Cancer Radiography Medical diagnosis Lung nodule Infiltrated area Chest radiograph Lung cancer Early detection