Attractive Interface Research Articles

Aplikasi Virtual tour Sebagai MediaPromosi Objek Wisata di Stone Garden Kab. Bandung Barat

West Java saves a lot of tourism potential that needs to be developed and managed in a professional manner through local government or a trusted third party as a manager. One of the potential of tourism, especially in Kabupaten West Bandung namely Stone Garden is located at the top of Pawon Mountain, Kampung Girimulya. Stone Garden in the Citatah Karst is a landscape which have tourism potential and strategic value Beautiful view, city view towards Padalarang and its surroundings from the top of Mount Masigit the main attraction. But the benefits and potential of such nature is not commonly known because of the lack of a media campaign depicting the attraction Stone Garden significantly so that potential tourists both domestic and abroad not optimally familiar with this attraction. From the above problem the authors designed a Virtual Tour with an attractive user interface interactive, user friendly to support and facilitate the introduction of multiple facility locations Stone Garden. With the Virtual Tour can be made easier for the manager to promote and facilitate the introduction of site locations without having to come to that location, so that the tourists whose want to know Stone Garden in detail only access the website to explore the attractions Stone Garden thoroughly. The test results calculation User Acceptance Test (UAT) data obtained feasibility of material with an average percentage of 92% included in the category of very appropriate in terms of design, features and user satisfaction. It can be concluded that the application virtual tour as a promotional medium attractions in Stone Garden Cipatat West Bandung regency, can help innovative tourism marketing and komunikastif with extensive outreach.

Energy transfer at heterogeneous protein-protein interfaces to investigate the molecular behaviour in the crowding environment

Investigation of the behaviour of proteins in crowded environments is crucial for understanding the role of proteins in biological environments. In this study, the behaviour of bovine serum albumin (BSA) in crowded (highly concentrated) environments was investigated using time-resolved fluorescence spectroscopy as a model system. By using energy transfer as a molecular ruler, the crowding effect was clearly observed in the time resolved spectra. In addition, by using both time resolved anisotropy measurement and Raman spectroscopy, more detail insights from conformational and dynamic points of view were described. Consequently, it was revealed that in the highly concentrated solution, most of the BSA molecules are in the fast-reversible oligomeric state and the association at the “hard” and “soft” interfaces between protein surfaces occurred in a highly crowded environment with the aid of a charge-charge and short-range attractive interface. From both the conformational and dynamic aspects, the detail spectroscopic understanding of the behaviour of BSA in the crowding environment was obtained.

Mapping of endoglucanases displayed on yeast cell surface using atomic force microscopy

The surface of yeast cells has been an attractive interface for the effective use of cellulose. Surface enzymes, however, are difficult to visualize and evaluate. In this study, two kinds of unique anchoring regions were used to display the cellulase, endoglucanase (EG), on a yeast cell surface. Differences in the display level and the localization of EG were observed by atomic force microscopy. By surveying the yeast cell surface with a chemically modified cantilever, the interactive force between the cellulose and EG was measured. Force curve mapping revealed differences in the display levels and the localization of EG according to anchoring regions. The proposed methodology enables visualization of displayed enzymes such as EG on the yeast cell surface.

Implementation of advanced steganography with higher security using LabVIEW

This paper presents the implementation of a highly secured data hiding technique called Steganography. This technique is applicable for image data type. The goal is to encode the data image within the cover image such that the data image’s existence is concealed. Cover media for image based steganography is image. Steganography deals with encoding data image information in a given image (called cover image) without making any visible changes to it. For advance security face recognition technique is used, so that only authorized person can access the data image. In this system dual security is provide first is encoding of data image in cover image and second is face recognition. LabVIEW graphical programming environment is a tool for realizing the image acquisition and processing. This software has several advantages: simple implementation, modularity, flexibility, attractive user interface and possibility to develop very easy new features. Face recognition and machine vision applications in automatic inspection of various electronic modules can also be implemented using given algorithm.

Biologically templated assembly of hybrid semiconducting nanomesh for high performance field effect transistors and sensors.

Delicately assembled composites of semiconducting nanomaterials and biological materials provide an attractive interface for emerging applications, such as chemical/biological sensors, wearable health monitoring devices, and therapeutic agent releasing devices. The nanostructure of composites as a channel and a sensing material plays a critical role in the performance of field effect transistors (FETs). Therefore, it is highly desirable to prepare elaborate composite that can allow the fabrication of high performance FETs and also provide high sensitivity and selectivity in detecting specific chemical/biological targets. In this work, we demonstrate that high performance FETs can be fabricated with a hydrodynamically assembled composite, a semiconducting nanomesh, of semiconducting single-walled carbon nanotubes (S-SWNTs) and a genetically engineered M13 phage to show strong binding affinity toward SWNTs. The semiconducting nanomesh enables a high on/off ratio (~104) of FETs. We also show that the threshold voltage and the channel current of the nanomesh FETs are sensitive to the change of the M13 phage surface charge. This biological gate effect of the phage enables the detection of biologically important molecules such as dopamine and bisphenol A using nanomesh-based FETs. Our results provide a new insight for the preparation of composite material platform for highly controllable bio/electronics interfaces.

Effect of temperature and functionalization on the interfacial properties of CNT reinforced nanocomposites

This paper presents a study of the interfacial characteristics in a SWCNT/epoxy nanocomposites system using Molecular dynamics simulations. Interaction energy at the interface of SWCNT and matrix and interfacial shear strength (IFSS) is calculated. Effects of temperature and functionalization with different functional groups (Amide and Phenyl) and their distribution on the interfacial properties of nanocomposites are studied. The Interaction energy is used to calculate the interfacial stiffness in case of Pristine CNT/epoxy system. Pull out simulation of the CNT is performed to characterize the IFSS. The results suggested the existence of attractive interface between CNT and the epoxy for all the cases analyzed. The Interaction energy increases with decrease in temperature and decreases with increase in temperature from the room temperature. Functionalization of CNTs increases the interaction when compared with the pristine one which further increases with degree of functionalization. The IFSS decreases with temperature in case of pristine CNTs and increases with functionalization.

A high-definition fiber tracking report for patients with traumatic brain injury and their doctors.

We have developed a tablet-based application, the High-Definition Fiber Tracking Report App, to enable clinicians and patients in research studies to see and understand damage from Traumatic Brain Injury (TBI) by viewing 2-dimensional and 3-dimensional images of their brain, with a focus on white matter tracts with quantitative metrics. The goal is to visualize white matter fiber tract injury like bone fractures; that is, to make the "invisible wounds of TBI" understandable for patients. Using mobile computing technology (iPad), imaging data for individual patients can be downloaded remotely within hours of a magnetic resonance imaging brain scan. Clinicians and patients can view the data in the form of images of each tract, rotating animations of the tracts, 3-dimensional models, and graphics. A growing number of tracts can be examined for asymmetry, gaps in streamline coverage, reduced arborization (branching), streamline volume, and standard quantitative metrics (e.g., Fractional Anisotropy (FA)). Novice users can learn to effectively navigate and interact with the application (explain the figures and graphs representing normal and injured brain tracts) within 15 minutes of simple orientation with high accuracy (96%). The architecture supports extensive graphics, configurable reports, provides an easy-to-use, attractive interface with a smooth user experience, and allows for securely serving cases from a database. Patients and clinicians have described the application as providing dramatic benefits in understanding their TBI and improving their lives.

Virtual Interactive Laboratory Applied to High Schools Programs

Abstract A common problem in many schools is that they do not have the necessary equipment in their science laboratories. This is often due to space and a limited budget for maintenance and equipment. Within a constructivists learning model with a multi perspective approach it is necessary for students to have an environment where they can perform scientific and technological experiments. Working in a science lab creates an interactive experience that encourages development and provides practical knowledge. Some cognitive processes arise through interaction; these play an important role in semantic construction. Usability within a platform refers to the interaction between the software and the users. This means the software will be easy to learn and navigate, allowing the user explore its potential through an attractive interface and operations. The software can be use efficiently, minimizing errors and increase user satisfaction, among others. This article focuses on studying the design and construction of a virtual laboratory through human interaction, to solve a problem through a virtual science lab. The student reads from his book Practice of Science, which outlines a task to perform. During the activity time, the student can interact with laboratory instruments. Even when following instructions, the student may overlook some details, which could lead to accidents or laboratory instruments damage. The result of the research includes an analysis of the construction of a virtual lab and the experience of users throughout their educational experience.

The interaction effects on the adsorption properties of an alternating copolymer chain at liquid–liquid interface

Analytical and numerical methods have been combined to investigate the effect of monomers-interfacial interactions on the behavior of a single alternating polymer chain at liquid–liquid interface. The exact Green's function of a Gaussian copolymer chain at attractive penetrable interface has been employed to determine monomer distribution profiles ρ(z), mean-square end-to-end distance 〈R2(z)〉 and the interfacial tension Δγ of the alternating copolymer chain. A comparison between the diblock and alternating copolymer chain is presented. Our model shows that, the alternating copolymer adsorbs more readily than the diblock copolymer at liquid–liquid interface. Also, these copolymers are able to reduce the interfacial tension when presented at the interface.

Perancangan Sistem Informasi Manajemen pada Klinik Skala Kecil (Studi Kasus: Klinik Dr. Jonni)

The purpose of this research was to develop a database application at dr. Jonni clinic which can be used for processing and recording of operational data with an attractive user interface. Through the integrated database application, data on dr. Jonni clinic would be more structured, therefore data retrieval will go faster and more accurate, data security administration will be increased, data redundancy will be eliminated and service performance clinic dr. Jonni will also be increased. The method of analysis includes the study of literature, examination of documentation, observation, and interviews. While in the design, the method includes application design using the waterfall method models, database design and data modeling application screens using State Transition Diagrams. The results achieved from this research is an application of data base management hospital. With database applications, all data and information can be integrated well, so that it would improve the quality of services as well as facilitate storing and accessing data. The conclusions obtained from this research is the application of data base management hospital helps in generating quick and accurate information that is used to support operations and decision-making in the clinic dr. Jonni.

Gamification and Smart, Competence-Centered Feedback: Promising Experiences in the Classroom

Gamification appears being a promising approach to utilize the strong motivational potential of “gaming” in classroom without suffering from shortcomings such as low efficiency, weak pedagogy, or maybe most importantly the high costs. In the context of a European project we developed a rather light weight tool for learning and practicing multiplications. The target age group of the tool is 6 to 8 years. To benefit from the motivational potential of games we used a “gamification” approach. Accordingly we designed and developed a game-like, attractive user interface and integrated aspects of competition. The system is capable of providing students formative, competence-oriented feedback in real-time. Tailored to the age group this feedback is presented in form of a ninja character. For an experimental comparison of the effects of different feedback modes, we realized the conditions (i) no feedback, (ii) written only right/wrong feedback, (iii) audio right/wrong feedback, and (iv) competence-based, smart formative feedback. We applied and evaluated the tool in Austrian classrooms and found some evidence for the motivational aspect of the gamification elements, in particular the scoring. We also found strong positive effects of an individualized and meaningful feedback about achievements and progress.

Interfaces between water splitting catalysts and buried silicon junctions

The coupling of water-splitting catalysts to silicon photovoltaics enables direct solar-to-fuel conversion. Critical to the performance of such devices is the use of interfaces to protect silicon from the oxygen-evolving reaction (OER) and at the same time to provide Ohmic contact between the buried silicon junction and the immobilised OER catalyst. Presented herein are guidelines for constructing the Si|catalyst interface, which is a crucial building block for efficient direct solar-to-fuel conversion devices. We show that fluorinated-tin-oxide is an especially attractive interface for buried-junction devices.

Iterative Channel Estimation with Frequency Replacement for SC-FDMA Systems

Single-carrier frequency division multiple access (SC-FDMA) is an attractive air interface scheme for broadband wireless communications. For the coherent demodulation of SC-FDMA systems, the receiver performs channel estimation to obtain the channel frequency response by using the reference signals multiplexed in the transmitted signal. In this paper, we propose an iterative frequency domain channel estimation scheme for SC-FDMA systems. To prevent severe noise enhancements due to the Gaussianity of the frequency domain data signal, we consider two low complexity algorithms, namely, hard and soft frequency replacements. We first analytically derive the mean square error (MSE) to characterize the effects of frequency replacement and post iterative filtering. By analyzing MSE performance, we present a design framework to develop the optimal frequency replacement. Based on the design framework, hard and soft frequency replacement algorithms are optimized in the MSE sense. Then, their low complexity adaptation methods are proposed for practical SC-FDMA systems, where the proposed frequency replacement is performed according to the reliability of the data estimates. Simulation results show that the proposed iterative channel estimation techniques effectively compensate for noise enhancements, and thus give good MSE and frame error rate performances.

Biomedical user adaptive system for smart environments

Ubiquitous computing (UbiCom) represents an umbrella for Smart Environments, Smart Devices and Smart Interactions. UbiCom also covers an area of user adaptive systems (UAS), which are growing in past time along with expansion of intelligent ubiquitous systems to every piece of embedded device around us. These systems provide many of interesting and useful services to support our day life needs in all areas include biomedical world of our bodies. Every such service needs however to provide their results by some kind of interface. Therefore the need of a simple, intuitive and graphically attractive interface is much appreciated. This paper is focused to several areas of user interface design, user interface adaptivity and visualisation. In all areas of developed system is implemented secured ways.

Photocatalytically patterned TiO2 arrays for on-plate selective enrichment of phosphopeptides and direct MALDI MS analysis.

We report the development of photocatalytically patterned TiO(2) arrays for selective on-plate enrichment and direct matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) analysis of phosphopeptides. A thin TiO(2) nanofilm with controlled porosity is prepared on gold-covered glass slides by a layer-by-layer (LbL) deposition/calcination process. The highly porous and rough nanostructure offers high surface area for selective binding of phosphorylated species. The patterned arrays are generated using an octadecyltrichlorosilane (OTS) coating in combination of UV irradiation with a photomask, followed by NaOH etching. The resulting hydrophilic TiO(2) spots are thus surrounded by a hydrophobic OTS layer, which can facilitate the enrichment of low-abundance components by confining a large volume sample into a small area. The TiO(2) arrays exhibit high specificity toward phosphopeptides in complex samples including phosphoprotein digests and human serum, and the detection can be made in the fmole range. Additional advantages of the arrays include excellent stability, reusability/reproducibility, and low cost. This method has been successfully applied to the analysis of phosphopeptides in nonfat milk. The patterned TiO(2) arrays provide an attractive interface for performing on-plate reactions, including selective capture of target species for MALDI-MS analysis, and can serve as a versatile lab-on-a-chip platform for high throughput analysis in phosphoproteome research.

Investigating the complex drivers of loyalty in e‐commerce settings

PurposeThe purpose of this paper is to investigate how perceived service quality, satisfaction and trust determine loyalty in e‐commerce settings at the level of construct dimensions.Design/methodology/approachA survey method approach was used in this study. To test the dimensionality of the perceived service quality, all the 20 items were analyzed using oblique rotation and varimax rotation. The hypotheses were tested using the structural equations modeling.FindingsEmpirical results indicate that only assurance does appear to play an imperative role in building trust as suggested by many authors. Of particular interest is the finding that word‐of‐mouth (WOM) is an antecedent of trust and intention. It becomes clear that WOM is a relatively important driver of trust and intention in e‐commerce settings.Research limitations/implicationsThe study may also be delimited to Qatar only. Further research could complement it by exploring the study variables and other variables not mentioned in depth here.Practical implicationsSatisfaction, which contributes considerably to loyalty, can be increased by providing an attractive user interface, and an easy to use and interesting system. Specifically, the positive word‐of‐mouth decreases the need for marketing expenses and can increase revenue if new customers are attracted. Online retailers should direct their before‐ and after‐sales service mechanisms towards developing consumers' willingness to get engaged in positive WOM in favour of the company and its services.Originality/valueThe major contribution of the study is that it is the first attempt to investigate the impact of word of mouth on trust and intention ahead of previous studies.

Fermions in low-dimensional systems and the transition between bulk and surface properties

We discuss three formalisms for the description of Fermions in low-dimensional systems. Then we consider dimensionally hybrid Hamiltonians with mixed three-dimensional and two-dimensional kinetic terms. These Hamiltonians yield particular dimensionally hybrid Green’s functions with interesting prospects for the description of the transition between two-dimensional and three-dimensional behavior of particles in the presence of attractive interface potentials.PACS Nos.: 05.30.Fk, 71.10.Pm, 73.20.–r

Structure-property relationships in the optimization of polysilicon thin films for electrical recording/stimulation of single neurons

We had earlier demonstrated the use of polysilicon microelectrodes for recording electrical activity from single neurons in vivo. Good machinability and compatibility with CMOS processing further make polysilicon an attractive interface material between biological environments on one hand and MEMS technology and digital circuits on the other hand. In this study, we focus on optimizing the polysilicon thin films for (a) electrical recording and (b) stimulation of single neurons by minimizing its electrochemical impedance spectra and maximizing its charge storage/injection capacity respectively. The structure-property relationships in ion-implanted (phosphorus) LPCVD polysilicon thin films under different annealing and doping conditions were carefully assessed during this optimization process. A 2D model of the polysilicon thin film consisting of 4 grains and 3 grain boundaries was constructed and the effect of grain size and grain boundaries on dc resistivity was simulated using device simulator ATLAS. Optimal processing conditions and doping concentrations resulted in a 10-fold decrease in electrochemical impedance from 1.1 kOmega to 0.1 kOmega at 1 kHz (area of polysilicon interface = 4.8 mm(2)). Subsequent characterizations showed that evolution of secondary grains within the polysilicon thin films at optimal doping and annealing conditions (10(21)/cm(3) of phosphorus and annealed at 1200 degrees C) was responsible for decreasing the impedance. Cyclic voltammetry studies demonstrated that charge storage properties of low doped (10(15)/cm(3)) thin films was 111.4 microC/cm(2) in phosphate buffered saline which compares well with platinum wires (approximately 50 microC/cm(2)) and the double-layered capacitance (C(dl)) could be sustained between -1 to 1 V before breakdown and hydrolysis. We conclude that polysilicon can be optimized for recording and stimulating single neurons and can be a valuable interface material between neurons and CMOS or MEMS devices.

Capillary liquid chromatography–microchip atmospheric pressure chemical ionization–mass spectrometry

A miniaturized nebulizer chip for capillary liquid chromatography-atmospheric pressure chemical ionization-mass spectrometry (capillary LC-microchip APCI-MS) is presented. The APCI chip consists of two wafers, a silicon wafer and a Pyrex glass wafer. The silicon wafer has a DRIE etched through-wafer nebulizer gas inlet, an edge capillary insertion channel, a stopper, a vaporizer channel and a nozzle. The platinum heater electrode and pads for electrical connection were patterned on to the Pyrex glass wafer. The two wafers were joined by anodic bonding, creating a microchip version of an APCI-source. The sample inlet capillary from an LC column is directly connected to the vaporizer channel of the APCI chip. The etched nozzle in the microchip forms a narrow sample plume, which is ionized by an external corona needle, and the formed ions are analyzed by a mass spectrometer. The nebulizer chip enables for the first time the use of low flow rate separation techniques with APCI-MS. The performance of capillary LC-microchip APCI-MS was tested with selected neurosteroids. The capillary LC-microchip APCI-MS provides quantitative repeatability and good linearity. The limits of detection (LOD) with a signal-to-noise ratio (S/N) of 3 in MS/MS mode for the selected neurosteroids were 20-1000 fmol (10-500 nmol l(-1)). LODs (S/N = 3) with commercial macro APCI with the same compounds using the same MS were about 10 times higher. Fast heat transfer allows the use of the optimized temperature for each compound during an LC run. The microchip APCI-source provides a convenient and easy method to combine capillary LC to any API-MS equipped with an APCI source. The advantages and potentials of the microchip APCI also make it a very attractive interface in microfluidic APCI-MS.

Contradicting perturbations of the segmental and secondary relaxation dynamics of polymer strands constrained in nanopores

The glass transition and the sub-glassy relaxations in 1 mm bulk-like poly(methyl methacrylate) (PMMA) films and PMMA confined in ∼5 nm silica pores were studied using several variants of thermally stimulated currents (TSCs) spectroscopy applied in the temperature range from −263 to +160 °C. The hindering of the segmental dynamics, demonstrated by the strong high-temperature shift of the α mode, is accompanied by a substantial broadening of both the dielectric and calorimetric signals compared to the bulk phase. Contrastingly, the TSC signatures of local transitions ascribed to –COOCH 3 (β mode) and α-CH 3 (γ mode) pendant groups shift to lower temperatures. These perturbations appear irrespective of the initiator (benzoyl peroxide or azo-bis-isobutyro-nitrile) used for the in situ free-radical polymerisation process. The data are interpreted in the framework of the balancing of enthalpic and entropic effects of the nanoconstraint, which generate a motional gradient with hindered relaxing units near the attractive interface and sterically or kinetically facilitated rotational motions in the core.