Title: Agile and Efficient MIMO System for Smart Phone Terminals
Authors: Osama N Alrabad, Elpiniki P Tsakalaki, Mauro Pelosi, Gert F Pedersen
Abstract: The paper proposes a novel multi-input multi-output (MIMO) system architecture that covers most of the high L TE bands. The system is comprised of four small loop antennas. Each antenna has two ports, one for communication and one for control. The control port is used for tuning the loop antenna where impressive frequency agility using a single capacitor is obtained. A good level of inherent isolation among the four loop antennas is maintained over the different frequency bands. The MIMO performance of the proposed system is evaluated through its spectral efficiency versus frequency. Finally, the information bandwidth of the MIMO system can be defined by comparing its spectral efficiency against the spectral efficiency of three ideal MIMO antennas.
Title: Interface-Based Object-Oriented Design with Mock Objects
Authors: Nandigam, J.; Gudivada, V.N.; Hamou-Lhadj, A.; Yonglei Tao
Abstract: Interfaces are fundamental in object-oriented systems. One of the principles of reusable object-oriented design, according to Gamma et al., is program to an interface, not an implementation. Interface-based systems display three key characteristics - flexibility, extensibility, and pluggability. Designing with interfaces is therefore a better way of building object-oriented systems. Getting students in introductory software engineering and design courses to program to interfaces and develop interface-based systems is a challenge. This paper presents our experiences with the use of mock objects to promote interface-based design and effective unit testing in software engineering and design courses.
Title: Low Complexity Routing Algorithm for Rearrangeable Switching Networks
Authors: Amitabha Chakrabarty Martin Collier
Abstract: Rearrangeable switching networks have been a topicof interest for a long time among the research community.Routing algorithms for this class of networks have attractedlots of researchers along with other related areas, such asmodiï¬cation of the networks structure, crosspoints reduction etc.In this paper a new routing algorithm is presented for symmetricrearrangeable networks built with 2 × 2 switching element. Anew matrix based abstraction model is derived to determineconflict free routing paths for each input-output request. Eachstage of a network is mapped into a set of sub-matrices andnumber of matrices in each stage correspond to number ofsubnetworks in that stage. Once the input permutation is given,matrix cells are populated with binary values depending onthe position of the switching elements in the actual hardwareand their mapped matrix cells. These binary values control therouting decision in the underlying hardware. This new routingalgorithm is capable of connection setup for partial permutation,m = ÏN , where N is the total input numbers and m is thenumber of active inputs. Overall the serial time complexity ofthis method is O(N logN)1 and O(mlogN) where all N inputsare active and with m < N active inputs respectively. Thetime complexity of this routing algorithm in a parallel machinewith N completely connected processors is O(log2N). With mactive requests the time complexity goes down to O(logmlogN),which is better than the O(log2m + logN), reported in theliterature for 212[(log2Nâˆ_4logN)12âˆ_logN ] ≤ Ï â‰¤ 1. Later half ofthis paper demonstrates how this routing algorithm is applicablefor crosstalk free routing in optical domain.
Title: Noise Robust Voice Detector for Speaker Recognition
Authors: Gabriel Hernandez, Jose R Calvo, Rafael Fernandez, Ivis Rodes and Rafael Martnez
Abstract: The effect of additive noise in a speaker recognition system is well known to be a crucial problem in real life applications. In a speaker recognition system, if the test utterance is corrupted by any type of noise, the performance of the system notoriously degrades. The use of a noise robust voice detector to determine which audio frame is a voice frame is proposed in this work. The new detector is implemented using an Ada-Boosting algorithm in a voiced-unvoiced sound classifier based on speech waveform only. Results reflect better performance of robust speaker recognition based on selected voice segments, respects to unselected segments, in front to additive white noise.
Title: Accelerating Pollard’s Rho Algorithm on Finite Fields
Authors: Jung Hee Cheon, Jin Hong , and Minkyu Kim
Abstract: Most generic and memory efficient algorithms for solving the discrete logarithm problem construct a certain random graph consisting of group element nodes and return the solution when a collision is found among the graph nodes. In this work, we develop a technique for traveling through the random graph with- out fully computing each node and also provide an extension to the distinguished point collision detection method that is suitable for this new situation. Concrete constructions of this technique for multiplicative subgroups of the finite fields are given. Our implementations confirm that the proposed technique provides practical speedup over existing algorithms.
Publish Year: 2012
Publisher: Journal of Cryptography - Journal of Springer
Title: Bricolage: Example-Based Retargeting for Web Design
Authors: Ranjitha Kumar Jerry O Talton Salman Ahmad Scott R Klemmer
Abstract: The Web provides a corpus of design examples unparalleled in human history. However, leveraging existing designs to produce new pages is often difficult. This paper introduces the Bricolage algorithm for transferring design and content between Web pages. Bricolage employs a novel, structured-prediction technique that learns to create coherent mappings between pages by training on human-generated exemplars. The produced mappings are then used to automatically transfer the content from one page into the style and layout of an-other. We show that Bricolage can learn to accurately repro-duce human page mappings, and that it provides a general, efficient, and automatic technique for retargeting content between a variety of real Web pages.
Title: Secret Sharing Scheme Suitable for Cloud Computing
Authors: Satoshi Takahashi Keiichi Iwamura
Abstract: Secret sharing schemes have recently been considered to apply for cloud computing in which many users distribute multiple data to servers. However, when Shamir s(k,n) secret sharing is applied to cloud systems, the amount of share increases more than n times the amount of the secret. Therefore, in this paper we propose a new secret sharing scheme that can reduce the amount of share different from Ramp type secret sharing, suitable for cloud systems, and we prove that it is computationally secure.
Abstract: Knowledge mobilisation is a transition from theprevailing knowledge management technology that has beenwidely used in industry for the last 20 years to a new meth-odology and some innovative methods for knowledge rep-resentation, formation and development and for knowledgeretrieval and distribution. Knowledge mobilisation aims atcoming to terms with some of the problems of knowledgemanagement and at the same time to introduce new theory,new methods and new technology. More precisely, this paperpresents an outline of a fuzzy ontology as an enhanced ver-sion of classical ontology and demonstrates some advantagesfor practical decision making. We show that a number of softcomputing techniques, e.g. aggregation functions and inter-val valued fuzzy numbers, will support effective and practicaldecision making on the basis of the fuzzy ontology. Wedemonstrate the knowledge mobilisation methods with theconstruction of a support system for finding the best availablewine for a number of wine drinking occasions using a fuzzywine ontology and fuzzy reasoning methods; the supportsystem has been implemented for a Nokia N900 smart phone.
Title: Mission Assurance Increased with Regression Testing
Authors: Roland Lang
Abstract: Knowing what to test is an important attribute in any testing campaign, especially when it has to be right or the mission could be in jeopardy. The New Horizons mission, developed and operated by the John Hopkins University Applied Physics Laboratory, received a planned major upgrade to their Mission Operations and Control (MOC) ground system architecture. Early in the mission planning it was recognized that the ground system platform would require an upgrade to assure continued support of technology used for spacecraft operations. With the planned update to the six year operational ground architecture from Solaris 8 to Solaris 10, it was critical that the new architecture maintain critical operations and control functions. The New Horizons spacecraft is heading to its historic rendezvous with Pluto in July 2015 and then proceeding into the Kuiper Belt. This paper discusses the Independent Software Acceptance Testing (ISAT) Regression test campaign that played a critical role to assure the continued success of the New Horizons mission. The New Horizons ISAT process was designed to assure all the requirements were being met for the ground software functions developed to support the mission objectives. The ISAT team developed a test plan with a series of test case designs. The test objectives were to verify that the software developed from the requirements functioned as expected in the operational environment. As the test cases were developed and executed, a regression test suite was identified at the functional level. This regression test suite would serve as a crucial resource in assuring the operational system continued to function as required with such a large scale change being introduced. Some of the New Horizons ground software changes required modifications to the most critical functions of the operational software. Of particular concern was the new MOC architecture (Solaris 10) is Intel based and little end ian, and the legacy architecture (Solaris 8) was SPARC based and big end ian. The presence of byte swap issues that might not have been identified in the required software changes was very real and can be difficult to find. The ability to have test designs that would exercise all major functions and operations was invaluable to assure that critical operations and tools would operate as they had since first operational use. With the longevity of the mission also came the realization that the original ISAT team would not be the people working on the ISAT regression testing. The ability to have access to all original test designs and test results identified in the regression test suite greatly improved the ability to identify not only the expected system behavior, but also the actual behavior with the old architecture.
Publish Year: 2013
Published in: Aerospace - IEEE
Number of Pages: 8
موضوع: مهندسی نرم افزار، تست نرم افزار، تست مجتمع سازی
Title: Numerical simulation and optimization of CO2 sequestration in saline aquifers
Authors: Zheming Zhang, Ramesh Agarwal
Abstract: With heightened concerns on CO2 emissions from coal fired electricity generation plants, there has been major emphasis in recent years on the development of safe and economical Carbon Dioxide Capture and Sequestration (CCS) technology worldwide. Saline reservoirs are attractive geological sites for CO2 sequestration because of their huge capacity for long term sequestration. Over the last decade, numerical simulation codes have been developed in US, Europe and Japan to determine a priori the CO2 storage capacity of a saline aquifer and to provide risk assessment with reasonable confidence before the actual deployment of CO2 sequestration can proceed with enormous investment. In US, the 2nd version of Transport of Unsaturated Groundwater and Heat (TOUGH2) numerical simulator has been widely used for this purpose. However at present, it does not have the ability to determine optimal parameters such as injection rate, injection pressure, injection depth for vertical and horizontal wells, etc. for optimization of the CO2 storage capacity and for minimizing the leakage potential by confining the plume migration. This paper describes the development of a “Genetic Algorithm (GA)” based optimizer for TOUGH2 that can be used by the industry with good confidence to optimize the CO2 storage capacity in a saline aquifer of interest. This new code including the TOUGH2 and the GA optimizer is designated as “GATOUGH2”. It has been validated by conducting simulations of three widely used benchmark problems by the CCS researchers worldwide: (a) study of CO2 plume evolution and leakage through an abandoned well, (b) study of enhanced CH4 recovery in combination with CO2 storage in depleted gas reservoirs, and (c) study of CO2 injection into a heterogeneous geological formation. The results of these simulations are in excellent agreement with those of other researchers using different codes. The validated code has been employed to optimize the proposed water-alternating-gas (WAG) injection scheme for (a) a vertical CO2 injection well and (b) a horizontal CO2 injection well, in order to optimize the CO2 sequestration capacity of an aquifer. The optimized calculations from GATOUGH2 are compared with the brute force nearly optimized results obtained by performing a large number of calculations. These comparisons demonstrate the significant efficiency and accuracy of GATOUGH2 as an optimizer compared to using TOUGH2 in a brute force manner. This capability holds a great promise in studying a host of other problems in CO2 sequestration such as how to optimally accelerate the capillary trapping, accelerate the dissolution of CO2 in water or brine, and immobilize the CO2 plume.
Publish Year: 2013
Published in: Computers and Fluids - Science Direct
Abstract: In this paper we present a Universal and Interoper-able Ground Control Station (UIGCS) simulator for fixed androtary wing Unmanned Aerial Vehicles (UAVs), and all types ofpayloads. One of the major constraints is to operate and man-age multiple legacy and future UAVs, taking into account thecompliance with NATO Combined/Joint Services OperationalEnvironment (STANAG 4586). Another purpose of the station isto assign the UAV a certain degree of autonomy, via autonomousplanification/replanification strategies. The paper is organizedas follows.In Section 2, we describe the non-linear models of the fixed androtary wing UAVs that we use in the simulator.In Section 3, we describe the simulator architecture, which isbased upon interacting modules programmed independently.This simulator is linked with an open source flight simulator, tosimulate the video flow and the moving target in 3D. To concludethis part, we tackle briefly the problem of the Matlab/Simulinksoftware connection (used to model the UAV_s dynamic) with thesimulation of the virtual environment.Section 5 deals with the control module of a flight path of theUAV. The control system is divided into four distinct hierarchicallayers: flight path, navigation controller, autopilot and flightcontrol surfaces controller.In the Section 6, we focus on the trajectory planifica-tion/replanification question for fixed wing UAV. Indeed, one ofthe goals of this work is to increase the autonomy of the UAV. Wepropose two types of algorithms, based upon 1) the methods ofthe tangent and 2) an original Lyapunov-type method. Thesealgorithms allow either to join a fixed pattern or to track amoving target.Finally, Section 7 presents simulation results obtained on oursimulator, concerning a rather complicated scenario of mission.
Title: The role of the atmosphere in the provision of ecosystem services
Authors: Ellen J. Cooter, Anne Rea, Randy Bruins, Donna Schwede, Robin Dennis
Abstract: Solving the environmental problems that we are facing today requires holistic approaches to analysis and decision making that include social and economic aspects. The concept of ecosystem services, defined as the benefits people obtain from ecosystems, is one potential tool to perform such assessments. The objective of this paper is to demonstrate the need for an integrated approach that explicitly includes the contribution of atmospheric processes and functions to the quantification of air–ecosystem services. First, final and intermediate air–ecosystem services are defined. Next, an ecological production function for clean and clear air is described, and its numerical counterpart (the Community Multiscale Air Quality model) is introduced. An illustrative numerical example is developed that simulates potential changes in air–ecosystem services associated with the conversion of evergreen forest land in Mississippi, Alabama and Georgia to commercial crop land. This one-atmosphere approach captures a broad range of service increases and decreases. Results for the forest to cropland conversion scenario suggest that although such change could lead to increased biomass (food) production services, there could also be coincident, seasonally variable decreases in clean and clear air–ecosystem services (i.e., increased levels of ozone and particulate matter) associated with increased fertilizer application. Metrics that support the quantification of these regional air–ecosystem changes require regional ecosystem production functions that fully integrate biotic as well as abiotic components of terrestrial ecosystems, and do so on finer temporal scales than are used for the assessment of most ecosystem services.
Publish Year: 2013
Published in: Science of The Total Environment - Science Direct
Title: Construction of fuzzy ontologies from fuzzy XML models
Authors: Fu Zhang, Z.M. Ma, Li Yan
Abstract: The success and proliferation of the Semantic Web depends heavily on construction of Web ontologies. However, classical ontology construction approaches are not sufficient for handling imprecise and uncertain information that is commonly found in many application domains. Therefore, great efforts on construction of fuzzy ontologies have been made in recent years. In particular, XML is imposing itself as a standard for representing and exchanging information on the Web, topics related to the modeling of fuzzy data have become very interesting in the XML data context. Therefore, constructing fuzzy ontologies from fuzzy XML data resources may make the existing fuzzy XML data upgrade to Semantic Web contents, and the constructed fuzzy ontologies may be useful for improving some fuzzy XML applications.This paper proposes a formal approach and an automated tool for constructing fuzzy ontologies from fuzzy XML data resources. Firstly, we propose a formal definition of fuzzy XML models (including the document structure fuzzy DTDs and the document content fuzzy XML documents). On this basis, we propose a formal approach for constructing fuzzy ontologies from fuzzy XML models, i.e., transforming a fuzzy XML model (including fuzzy DTD and fuzzy XML document) into a fuzzy ontology. Also, we give the proof of correctness of the construction approach, and provide a detailed construction example. Furthermore, we implement a prototype tool called FXML2FOnto, which can automatically construct fuzzy ontologies from fuzzy XML models. Finally, in order to show that the constructed fuzzy ontologies may be useful for improving some fuzzy XML applications, we focus on investigating how to reason on fuzzy XML models (e.g., conformance, inclusion, and equivalence) based on the constructed fuzzy ontologies, and it turns out that the reasoning tasks of fuzzy XML models can be checked by means of the reasoning mechanism of fuzzy ontologies.
Publish Year: 2013
Published in: Knowledge-Based Systems - Science Direct
Abstract: The Belief Rule Base (BRB) is an expert system which can handle both qualitative and quantitative information. One of the applications of the BRB is the Rule-base Inference Methodology using the Evidential Reasoning approach (RIMER). Using the BRB, RIMER can handle different types of information under uncertainty. However, there is a combinatorial explosion problem when there are too many attributes and/or too many alternatives for each attribute in the BRB. Most current approaches are designed to reduce the number of the alternatives for each attribute, where the rules are derived from physical systems and redundant in numbers. However, these approaches are not applicable when the rules are given by experts and the BRB should not be oversized. A structure learning approach is proposed using Grey Target (GT), Multidimensional Scaling (MDS), Isomap and Principle Component Analysis (PCA) respectively, named as GT–RIMER, MDS–RIMER, Isomap–RIMER and PCA–RIMER. A case is studied to evaluate the overall capability of an Armored System of Systems. The efficiency of the proposed approach is validated by the case study results: the BRB is downsized using any of the four techniques, and PCA–RIMER has shown excellent performance. Furthermore, the robustness of PCA–RIMER is further verified under different conditions with varied number of attributes.
Publish Year: 2013
Published in: Knowledge-Based Systems - Science Direct
Title: Electromagnetic Interference with RFID Readers in Hospitals
Authors: Yue Ying, Dirk Fischer, Uvo Hlscher
Abstract: Radio frequency identification (RFID) applications have become popular in many areas. RFID uses wireless technology to transmit information stored within a RFID-tag to a RFID-reader. Passive RFID-tags are powered through the received signal from the reader. Therefore the reader has to transmit its request with a certain power to bridge the gap between reader and tag. In contrast to bar-code technology this technique allows communication without requiring a line of sight. The RFID-technology is beginning to be introduced in medical environment, e.g. for patient tracking, staff location, inventory management etc. Implementation of this technology in medical environment has to guarantee the patients_ safety. However the electromagnetic field generated by the RFID-readers may interfere with medical devices. This study evaluates the electromagnetic interference of RFID-readers with medical devices, discusses the results with respect to the safety standards and proposes a process to manage the risks associated with RFID-technology in medical environment.
Title: Engineering Mathematics: The Odd Order Theorem Proof
Authors: Georges Gonthier
Abstract: Even with the assistance of computer tools, the formalized description and verification of research-level mathematics remains a daunting task, not least because of the talent with which mathematicians combine diverse theories to achieve their ends. By combining tools and techniques from type theory, language design, and software engineering we have managed to capture enough of these practices to formalize the proof of the Odd Order theorem, a landmark result in Group Theory.
Abstract: This paper presents VLSI implementation of adaptive noise canceller based on least mean square algorithm. First, the adaptive parameters are obtained by simulating noise canceller on MATLAB. Simulink model of adaptive noise canceller was developed and the noise is suppressed to a much larger extent in recovering the original signal. The data such as input and output signals, desired signal, step size factor and coefficients of adaptive filter was processed by FPGA. Finally, the functions of field programmable gate array -based system structure for adaptive noise canceller based on LMS algorithm are synthesized, simulated, and implemented on XilinxXC3s200 field programmable gate array using Xilinx ISE tool. The research results show that it is feasible to implement and use adaptive least mean square filter based adaptive noise canceller design which consumed a low power of 0.156W at29.1° C in a single field programmable gate array chip.
Title: Information Fusion and Discounting Techniques for Decision Support in Aerospace
Authors: Fiona Browne , Yan Jin , Niall Rooney Hui Wang
Abstract: Decision makers are required to make critical decisions throughout all stages of a life-cycle in large-scale projects. These decisions are important as they impact upon the outcome and the success of projects. In this paper we present an evidential reasoning framework to aid decision-makers in the decision - making process. This approach utilizes the Dezert-Smarandache Theory (DSm) to fuse heterogeneous evidence sources that suffer from levels of uncertainty, imprecision and conflicts to provide beliefs for decision options. To analyze the impact that source reliability and priority has upon the decision making process a reliability discounting technique along with a priority discounting technique are applied. Application of the evidential reasoning framework is illustrated using a Case Study based in the Aerospace domain.
Title: Aero-Optical Effects In Free-Space Laser Communications
Authors: Stanislav Gordeyev, Eric Jumper
Abstract: When a laser beam is transmitted from an airborne platform, it must first pass through a relatively thin region of the turbulent flow in the immediate vicinity of the airplane. Unsteady density variations present in the turbulent flow will imprint spatial/temporal variations on the otherwise planar outgoing wavefronts. These variations in wavefronts will force the beam to move, change its shape and even break into several spots on a distant target. These aero-optical effects [1,2], even in the absence of any atmospheric optical distortions, might significantly degrade a performance of any free-space, laser-based airborne systems at subsonic, transonic or supersonic speeds.
Title: A Cognitive Link Adaptation Strategy with Differentiated Responses on Wi-Fi System-on-Chip
Authors: Taeyoung Lee, Myounghwan Lee, Jaeeun Kang, Kyungik Cho, ChilYoul Hacky Yang, and Scott Seongwook Lee
Abstract: The dynamic change of wireless channel condition causes poor Wi-Fi quality of service. To cope with the channel variation of wireless communication, the essential strategy for the physical layer with multi-rate capability is the link adaptation. However, because definite guidelines for rate changes do not exist, most link adaptation algorithms can misleadingly increase transmission rates. Therefore, we propose a cognitive link adaptation scheme, sensing link adaptation urgency and responding with differentiated rate control such as the long-term rate adaptation with a short-term rate drop. To evaluate the proposed scheme, we implement the link adaptation scheme on Wi-Fi System-on-Chip, applying the optimal HW/SW partitioning technique to reduce the SW processing delay from heavy operating calculation for the algorithm. The experiment shows that the proposed algorithm increases the packet arrival rate in a real Wi-Fi environment by reducing transmission failure due to wrong rate changes.
Title: The alpha parallelogram predictor: A lossless compression method for motion capture data
Authors: Pengjie Wang , Zhigeng Pan d,a , Mingmin Zhang a, , Rynson WH Lau c , Haiyu Song
Abstract: Motion capture data in an uncompressed form can be expensive to store, and slow to load and transmit. Current compression methods for motion capture data are primarily lossy and cause distortions in the motion data. In this paper, we present a lossless compression algorithm for motion capture data. First, we propose a novel Alpha Parallelogram Predictor (APP) to estimate the DOF (degree of freedom) of each child joint from those of its immediate neighbors and parents that have already been processed. The prediction parameter of the predictor, which is referred to as the alpha parameter, is adaptively chosen from a care- fully designed lookup table. Second, we divide the predicted and actual values into three components: sign, exponent and mantissa. We then compress their corrections separately with context-based arithmetic coding. Compared with other lossless compression methods, our approach can achieve a higher compression ratio with a comparable compression time. It can be used in situations where lossy compression is not preferred.
Publish Year: 2013
Published in: Information Sciences - Science Direct
Title: Solution blown nanofibrous membrane for microfiltration
Authors: Xupin Zhuang a,b , Lei Shi a , Kaifei Jia a , Bowen Cheng b,n , Weimin Kang
Abstract: Nanofibrous membranes have been paid attention in microfiltration. Solution blowing process is a new nanofiber fabricating method with high productivity. In this study, polyvinylidene fiuoride (PVDF) nanofibrous mat was successfully solution blown using a multiorifices die. The fibers were mostly 60 280 nm in diameter and three-dimensional curly which resulted in a loose construction with high porosity of 95.8%. The nanofibrous mat was further hot-pressed to increase its integrality. The structure and microfiltration performance was evaluated. The results showed the crystallinity of the membranes increased, the porosity and pore size decreased after hot-pressing treatment. The hot-pressed membranes showed high retention ratio against microparticles and high pure water fiux which will help the solution blown membrane find application in high fiux microfiltration.
Publish Year: 2013
Published in: Journal of Membrane Science - Science Direct
Title: Quotients and weakly algebraic sets in pseudoeffect algebras
Authors: HaiYang Li JiGen Peng
Abstract: In the paper, we show that the quotient ½E I of alattice-ordered pseudoeffect algebra E with respect to anormal weak Riesz ideal I is linearly ordered if and only ifI is a prime normal weak Riesz ideal, and ½E I is a repre-sentable pseudo MV-algebra if and only if I is an inter-section of prime normal weak Riesz ideals. Moreover, weintroduce the concept of weakly algebraic sets in pseudo-effect algebras, discuss the characterizations of weaklyalgebraic sets and show that weakly algebraic sets inpseudoeffect algebra E are in a one-to-one correspondencewith normal weak Riesz ideals in pseudoeffect algebra E:
مجموعه ایران سای به عنوان بزرگترین پایگاه مقالات معتبر انگلیسی در ایران، مفتخر است طرح حمایت مالی خود از دانشجویان تحصیلات تکمیلی دانشگاهها و موسسات آموزش عالی ایران را ارائه کند. بر این اساس، ایران سای تصمیم دارد در راستای کمک و ترغیب دانشجویان و پژوهشگران جوان کشورمان به مشارکت در کنفرانس های معتبر بین المللی مبلغ دو میلیون ریال به عنوان کمک هزینه سفر به صورت بلاعوض به ارائه دهندگان مقالات کمک مالی نماید.
شرایط استفاده از طرح
·متقاضی باید نویسنده اول مقاله بوده و سخنران مقاله باشد.
·متقاضی باید دانشجوی تحصیلات تکمیلی در یکی از دانشگاهها یا موسسات آموزش عالی ایران باشد.
·متقاضی باید فارسی زبان و ایرانی الاصل باشد.
·کنفرانس مورد نظر بایستی مورد تایید هیات تخصصی داوران ایران سای قرار گیرد.
نحوه درخواست
متقاضیان باید مستندات زیر را به آدرس Info@IranSci.IR با عنوان "کمک هزینه مشارکت در کنفرانس بین المللی" ارسال نمایند و منتظر بررسی درخواست خود در هیات داوران ایران سای بمانند. فرایند ارزیابی حداکثر یک هفته به طول خواهند انجامید و ایران سای در رد یا قبول درخواست ها تام الاختیار می باشد. لذا ارسال مدارک به منزله تاییدیه پرداخت کمک هزینه یا هرگونه تعهد دیگری نمی باشد.
مستندات مورد نیاز(3 عدد فایل PDF)
1.صفحه اول مقاله در قالب فایل PDF
2.مشخصات شخصی و علمی + مشخصات کنفرانس (همگی در یک صفحه) در قالب فایل PDF شامل موارد ذیل:
·نام و نام خانوادگی، رشته و مقطع تحصیلی، دانشگاه محل تحصیل، کپی کارت دانشجویی
·شماره 16 رقمی روی کارت حساب بانکی که با مشخصات متقاضی مطابقت کند
·نام و مشخصات کنفرانس و آدرس وب سایت کنفرانس جهت ارزیابی
3.نامه پذیرش مقاله توسط کنفرانس
نحوه پرداخت کمک هزینه
مبلغ دو میلیون ریال پس از بازگشت متقاضی از سفر به حساب بانکی سخنران مقاله واریز می گردد.
Abstract: Web Services is a technology for building distributed software applications that are built upon a set of information and communication standards. Among those standards is the Web Services Description Language (WSDL) which is an XML-based language for describing service descriptions. Service providers will publish WSDL documents of their Web services so that service consumers can learn about service capability and how to interface with the services. Since WSDL documents are the primary source of service information, readability of WSDL documents is of concern to service providers, i.e. service descriptions should be understood with ease by service consumers. Providing highly readable service descriptions can then be used as a strategy to attract service consumers. However, given highly readable information in the WSDL documents, competitors are able to learn know-how and can copy the design to offer competing services. Security attacks such as information espionage, client impersonation, command injection, and denial of service are also possible since attackers can learn about exchanged data and invocation patterns from WSDL documents. While readability of service descriptions makes Web services discoverable, it contributes to service vulnerability too. Service designers therefore should consider this trade-off when designing service descriptions. Currently there is no readability measurement for WSDL documents. We propose an approach to such measurement so that service designers can determine if readability is too low or too high with regard to service discoverability, service imitation, and service attack issues, and then can consider increasing or lowering service description readability accordingly. Our readability measurement is based on the concepts or terms in service domain knowledge. Given a WSDL document as a service description, readability is defined in terms of the use of difficult words in the description and the use of words that are key concepts in the service domain. As an example, we measure readability of the WSDL document of public Web services, and outline a method to lower or increase readability.
ای پادشه خوبان، داد از غم تنهایی دل بی تو به جان آمد، وقت است که بازآیی
دیرزمانی است که مومنان و آزادمردان دنیا قدوم مبارکش را انتظار می‌کشند تا دنیای پر از تباهی و تاریکی را به نور خویش روشن فرماید و امروز که تاریکی بیش از هر زمانی در همیشه تاریخ بر سرتاسر کره خاکی حکمفرما شده و صاحبان زور و زر در لباس سپاهیان شیطان هر روز بیش از روز قبل به فساد و ظلم و جور می‌پردازند و جاهلان عصر مدرن نیز با چشمهایی که نمی بینند، گوشهایی که نمی شوند و زبانهایی که نمی گویند، نمی خواهند گامی در راه کمک به مستضعفان و مظلومان بردارند، هر لحظه نبودنش را بیش از پیش احساس کرده و برای تعجیل در ظهورش دست به دعا بر می‌داریم اَللّهُمَّ کُنْ لِوَلِیِّکَ الْحُجَّةِ بْنِ الْحَسَنِ صَلَواتُکَ عَلَیْهِ وَعَلى آبائِهِ فی هذِهِ السّاعَةِ وَفی کُلِّ ساعَةٍ وَلِیّاً وَحافِظاً وَقائِداً وَناصِراً وَدَلیلاً وَعَیْناً حَتّى تُسْکِنَهُ أَرْضَکَ طَوْعاً وَتُمَتِّعَهُ فیها طَویلاً.
فرا رسیدن نیمه شعبان، سالروز میلاد یگانه منجی عالم بشریت حضرت مهدی (عج)، مبارک باد.
Title: A method for the coating of a polymer inclusion membrane with a monolayer of silver nanoparticles
Authors: Ya Ya N Bonggotgetsakul, Robert W Cattrall, Spas D Kolev
Abstract: The preparation of silver nanoparticles (AgNPs) is described using a polymer inclusion membrane (PIM) consisting of 45% (m/m) di-(2-ethylhexyl)phosphoric acid (D2EHPA) and 55% (m/m) poly(vinyl chloride) (PVC) as a template. The Ag(I) ion was ?rstly extracted into the membrane via cation-exchange and then subsequently reduced with NaBH , trisodium citrate, citric acid, or L-ascorbic acid to form AgNPs. The most effective reducing agent was found to be L-ascorbic acid which at pH 2.0 formed a uniform monolayer of AgNPs of an average size of 360 nm on the surface of the PIM. Citric acid also produced AgNPs but these were embedded in the bulk of the membrane and did not provide a good surface coverage. NaBH and trisodium citrate, on the other hand, gave rise to the formation of black silver oxide on the membrane surface. Factors such as the membrane loading with Ag(I), PIM composition, reduction time, temperature and shaking time were found to have a significant influence on the surface coverage and size of the AgNPs.
Publish Year: 2013
Published in: Journal of Membrane Science - Science Direct
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