Summary What can be done to help college students who are not native speakers of English learn from computer‐based lessons that presented in English? To access the meaning spoken words a slow‐paced 16‐minute narration about wildlife Antarctica, representational video was added showed scenes and animals being described (Experiment 1). Adding resulted improved performance non‐native on comprehension test (d = 0.63), perhaps because word without creating extraneous cognitive load. perceive...

Understanding the interfacial phenomena in composite cathodes is essential for achieving excellent cycle performance all-solid-state batteries (ASSBs), which exhibit high safety and energy densities. Herein, we report on spontaneous crack-healing mechanism a cathode consisting of LiNi0.7Co0.15Mn0.15O2 (NCM) Li6PS5Cl0.5Br0.5. This exhibited during cell tests owing to stack pressure, enhanced ionic electrical transfers at material interfaces by remarkably reducing macrocracks between materials...

Localization of objects is one the most important fundamental technology to realize ubiquitous network technology. To localization objects, we construct an absolute positioning system based on RFID and investigate how technique can be enhanced by through experiment measure position moving direction a mobile robot

In these days, biped walking robots are concentrated on a service robot. Biped suitable in human life work such as up and down stairs crossing threshold because they have two leg mechanisms like human. However, it is very difficult subject that robot maintains valance walking. One way to solve this problem using an accurate dynamic model of 2-Dimension 3-Dimension. Another method modeling simply controlling the with adaptive control, intelligent control robust algorithm so on. ZMP(zero...

We propose that the effectiveness of simulations for science education depends on design features such as type representation chosen to depict key concepts. hypothesize addition iconic representations can help novice learners interpret visual simulation interface and improve cognitive learning outcomes well learners’ self-efficacy. This hypothesis was tested in two experiments with high school chemistry students. The studies examined effects (symbolic versus iconic), prior knowledge, spatial...

While interacting with mobile devices, users may press against touch screens and also exert tangential force to the display in a sliding manner. We seek guide UI design based on applied by user surface of hand-held device. A prototype an interface using input was implemented utilizing sensitive layer elastic used for experiment. investigated controllability reach maintain target levels considered effects hand pose direction input. Our results imply no significant difference performance when...

Summary Korean high school students (Experiment 1) and college 2a) received a 16‐minute lesson on Antarctica that consisted of English audio only (audio group) or with corresponding video depicting the scenes objects described in + group). The group scored significantly (d = 0.33 Experiment marginally higher 0.42 than subsequent comprehension test. mean difficulty rating was less 0.62 1 d 0.96 2a); effort greater 0.60 0.79 2a). When Korean, scores did not benefit from added −0.03 2b)....

In this article, the intelligent home care system based on context-awareness consists of a sensor platform, context-aware framework and an agent, where platform collects raw data sends them to framework, perceives residents' home's context. An agent triggers automatic services according information situation framework. We design implement technology, which minimizes interventions maximizes functional autonomy systems. Also we suggest architecture its flows for proposed system. article...

As the carbon dioxide emission and global warming become world serious issues, many researches are performed to reduce energy consumption. Therefore, there new devices for saving scheme in smart home area, such as plug, AMI, IHD. Using them, users can recognize amount of consumption, appliances be controlled considering efficiency. In this paper, we propose a management system an energy-efficient home. First, data consumption is collected analyzed. And conservation measures generated while...

This study investigated a reliable and valid method for measuring cognitive load during learning through comparing various types of measurements: electroencephalography (EEG), self-reporting, outcome. A total 43 college-level students underwent watching documentary delivered in English or Korean. EEG was measured watching, subjective rating reported right after watching. Comprehension tested achievements. The results demonstrated positive relationship between difficulty by self-report beta...

Current research on robot navigation is focused clear recognition of the map and optimal path planning. The human cleaning is, however, not regarding time but to purpose. We have analyzed in this paper behaviors home environments understood user's planning through usage tests various vacuuming robots. discovered that actual user cleans with methods unique specific areas house rather than following an path. only suggest a method for by using layered map, also area designating reflecting each...

Active queue management (AQM) has been widely used for congestion avoidance in transmission control protocol (TCP) networks. Although numerous AQM schemes have proposed to regulate a size close reference level, most of them are incapable adequately adapting TCP network dynamics due TCP's non-linearity and time-varying stochastic properties. To alleviate these problems, we introduce an technique based on dynamic neural using the back-propagation (BP) algorithm. The is designed perform as...

A novel and intuitive way of accessing applications mobile devices is presented. The key idea to use grip-pattern, which naturally produced when a user tries the device, as clue determine an application be launched. To this end, capacitive touch sensor system carefully designed installed underneath housing device capture information user's grip-pattern. captured data then recognized by minimum distance classifier naive Bayes classifier. recognition test performed validate feasibility...

Abstract The thiophene‐based copolymers (poly)3TA‐co‐3HT)‐1 and poly(3TA‐co‐3HT)‐2) as hole conducting materials on the dye‐sensitized solar cells (DSSCs) were synthesized. In order to increase solubility interface absorption of onto nanoporous TiO 2 layer in DSSC device, two different kinds thiophene monomers used hexyl with substituted carboxyl groups. compositions, structures, thermal properties these characterized. photovoltaic performances SnO :F/TiO /dye/polymer/Pt devices using...

Purpose The purpose of this paper is to uncover what affected restaurateurs in their intention participate the healthy restaurant initiative. Design/methodology/approach In all, 53 who participated initiatives Korea responded a survey. Multiple regression analysis was conducted reveal influences perceived innovation characteristics (PICs), attitudes, subjective norm, and behavioral control (PBC) on sustain restaurant. Findings results showed that PBC, attitudes toward restaurants, relative...

The emergence of multiprotocol label switching (MPLS) with its efficient support explicit routing provides basic mechanisms for facilitating traffic engineering. Exploiting this capability MPLS, we propose an adaptive multipath engineering mechanism named LDM (load distribution over multipath). main goal is to enhance the network utilization as well performance by adaptively splitting load among multiple paths. takes pure dynamic approach not requiring any a priori statistics. Routing...

We report the performance of polythiophene/fullerene solar cells with a hole-collecting buffer layer that was made using composite films functionalized multi-walled carbon nanotube (f-MWCNT) and poly(3,4ethylenedioxythiphene):poly(styrenesulfonate) (PEDOT:PSS).The MWCNT carboxyl groups to bestow solubility in weak base solvent for mixing PEDOT:PSS.Results showed optical transmittance PEDOT:PSS/f-MWCNT coated substrate sample slightly improved some parts visible infrared regions.The polymer...

Room temperature ionic liquids have been used as electrolytes to investigate the performance and characteristics in dye-sensitized solar cells (DSSCs). We focused on quasi-solid state electrolyte using liquids, which are non-volatile having relatively high conductivities. studied of DSSC device with different anion or cation structures liquids. The power conversion efficiency [EMIm]+[PF6]− under 100 mA/cm2 is achieved up 4.37%.