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Enhanced HMDSO Resistance in CeO2-rGO/Pd/ZnO Gas Sensor
Hexamethyldisiloxane (HMDSO) presents a significant challenge to the reliability of metal-oxide-semiconductor (MOS) gas sensors due to its deactivation properties, posing risks to environmental and daily life safety. This study enhances the performance of MOS gas sensors by developing an anti-poisoning sensor (APS) with a composite CeO2-rGO (Cerium Oxide-reduced Graphene Oxide) layer on Pd/ZnO nanoparticles. The APS improves resistance to HMDSO poisoning during hydrogen (H-2) detection and exten
2025-10
핸드-아이 캘리브레이션의 원리와 의료 증강 현실에 대한 적용
To implement accurate AR navigation, real-time AR-core transformation from the coordinate system of the camera to that of a virtual object is necessary. If feature points in the camera image and virtual object are detected robustly and paired suitably, the direct calculation of the AR-core transformation is feasible for real-time update. However, in endoscopic or microscopic surgery, determining the AR-core transformation requires feature points within the patient’s body. It is challenging and t
2025-11
Fabrication and evaluation of high-performance cylindrical supercapacitors using double-layered Ni-based electrodes
Cylindrical supercapacitors were fabricated using Ni2(CO3)(OH)2-based transition metal electrodes synthesized via a hydrothermal method, and the electrochemical performances of single-layer and double-layer electrode configurations were systematically compared. Both devices were designed to maintain the same total electrode area, with a graphite anode inserted at the core to ensure stable electron transport and mechanical robustness. Electrochemical evaluations revealed that the single-electrode
2026-03
페로브스카이트 나노결정의 제조 방법 및 이를 이용하여 제조된 페로브스카이트 나노결정
본 발명은 페로브스카이트 나노결정의 제조 방법 및 이를 이용하여 제조된 페로브스카이트 나노결정을 개시한다. 본 발명은 1가 금속 양이온을 포함하는 금속 올레이트 용액을 제조하는 단계; 금속 할라이드 및 유기 리간드를 포함하는 금속 할라이드-리간드 용액을 제조하는 단계; 상기 금속 할라이드-리간드 용액에 상기 금속 올레이트 용액을 첨가하여 상기 유기 리간드가 표면에 결합된 페로브스카이트 화합물인 제1 페로브스카이트 화합물을 제조하는 단계; 상기 제1 페로브스카이트 화합물을 분산 용매에 분산시켜 제1 페로브스카이트 화합물 분산 용액을 제조하는 단계; 표면 리간드를 포함하는 표면 리간드 용액에 할로겐화수소를 첨가하여 할로겐화 표면 리간드를 제조하는 단계; 상기 할로겐화 표면 리간드를 극성 용매에 분산시켜 할로겐화 표면 리간드 분산 용액을 제조하는 단계; 및 상기 제1 페로브스카이트 화합물 분산 용액에 상기 할로겐화 표면 리간드 분산 용액을 첨가하여 제1 리간드 교환 공정을 수행함으로써 상
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Recent Advances in Ultra-High-Speed Wireline Receivers with ADC-DSP-Based Equalizers
High-speed wireline data transceivers (TRX) with analog-to-digital converter (ADC) followed by digital signal processor (DSP) on the receiver (RX) equalizer became popular for applications requiring >100 Gb/s per-lane data rate over long-reach (LR) channels, especially for datacenter applications. With the digital-to-analog converter (DAC)-based transmitter (TX) including DSP-based TX signal processing, the overall structure of DAC/ADC-DSP-based wireline TRXs became similar to modulator/demodula
2024-11
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Edge-Server Workload Characterization in Vehicular Computation Offloading: Semantics and Empirical Analysis
Edge server-assisted computation offloading enables vehicles to leverage server compute resources to deliver connected services, overcoming the limitations of onboard resources. Understanding the compute workloads of edge servers is crucial for effective resource management and scheduling, yet this task is challenging due to the complex interplay of factors such as vehicle mobility and computation offloading patterns. To address this, we propose an empirical analysis framework that systematicall
2024-06
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Applications of flexible and stretchable three-dimensional structures for soft electronics
The development of devices that can be mechanically deformed in geometrical layouts, such as flexible/stretchable devices, is important for various applications. Conventional flexible/stretchable devices have been demonstrated using two-dimensional (2D) geometry, resulting in dimensional constraints on device operations and functionality limitations. Accordingly, expanding the dimensions in which such devices can operate and acquiring unique functionality that is difficult to implement in 2D pla
2023-06
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Assessing dietary specialization to inform the conservation of the fairy pitta (Pitta nympha), an endangered vermivore
Quantifying the diet of endangered species is crucial for conservation, especially for diet specialists, which can be more susceptible to environmental changes. The vulnerable fairy pitta (Pitta nympha) is considered a specialist that primarily feeds its nestlings with earthworms. However, there have been few studies of the nestling diet provisioned by parents, and no assessments of earthworm proportion in the diet of adults. Our study aimed to fill these gaps, shedding light on crucial factors
2024-04
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