187037 research outputs found
Sort by
No Thing, Nothing: Highlighting Safety-Critical Classes for Robust LiDAR Semantic Segmentation in Adverse Weather
No full textTransfer method of single crystalline thin layer and method of manufacturing semiconductor device using the same
No full text본 발명은 전사되는 단결정 박막의 박리를 효과적으로 억제시켜 우수한 공정 효율로 단결정 박막을 전사시킬 수 있는 단결정 박막의 전사방법에 관한 것으로, a) 제1웨이퍼 및 단결정 박막을 포함하는 제2웨이퍼를 접합하되, 상기 단결정 박막이 제1웨이퍼의 상부면과 접하는 접합 구조체 형성 단계; b) 상기 접합 구조체의 가장자리 접합부에 엣지 보호막을 형성하는 단계; 및 c) 상기 엣지 보호막이 형성된 접합 구조체에 포함된 상기 단결정 박막을 제외한 제2웨이퍼의 하부면을 식각하는 단계;를 포함한다
MODEL GENERATION TOOL FOR MALWARE CODE DETECTION INCLUDED IN HWP FILE BASED ON XAI AND DETECTION TOOL USING THE GENERATED MODEL
No full textHWP 파일에 포함된 악성코드의 탐지를 위한 XAI 기반 모델 생성 도구 및 이를 이용한 악성코드 탐지 도구가 제공된다. 상기 도구는 입력 HWP 파일을 분석하여 악성 코드 탐지와 관련된 특징을 추출하는 특징 추출부; 복수의 입력 HWP 파일로부터 추출된 특징을 이용하여 트레이닝 데이터를 생성하는 데이터 수집부; 상기 트레이닝 데이터로부터 HWP 파일의 악성코드 탐지 모델을 생성하는 모델 생성부; 상기 HWP 파일의 악성코드 탐지 모델을 이용하여 대상 HWP 파일의 악성코드 여부를 진단하는 악성코드 진단부; 및 상기 악성코드 탐지 모델에 XAI 기반 분석을 적용하여 선택된 특징에 대한 상기 대상 HWP 파일과 상기 트레이닝 데이터의 결과를 비교하여 상기 진단의 해석 결과를 출력하는 진단 결과 평가부를 포함한다
INSPECTION APPARATUS FOR PRESSURE VESSEL
No full text본 발명은 레이저 초음파를 이용하여 Type 4의 압력용기를 검사하기 위한 압력용기 검사장치에 관한 것으로서, 상기 압력용기를 가진하기 위한 레이저를 발진하는 발진부, 상기 발진부에서 발진된 레이저를 상기 압력용기의 내측으로 안내하기 위해, 일단은 상기 압력용기의 내측에 위치되고 타단은 상기 압력용기의 외측에 위치되게 상기 압력용기에 삽입되는 도관부, 상기 압력용기의 내측에 위치되는 상기 도관부의 일단에 구비되어 상기 도관부에 의해 안내된 레이저를 소정 방향으로 반사하는 반사부, 및 상기 반사부에 의해 반사된 상기 레이저에 의해 상기 압력용기에서 발생되는 초음파를 레이저를 이용하여 상기 압력용기의 외측에서 탐지하는 탐지부를 포함한다
Gently Sloped and Extended Classification Margin for Overconfidence Relaxation of Out-of-Distribution Samples
No full textRecently, machine learning models are expected to be capable of detecting out-of-distribution (OOD) samples for safe use. However, the existing OOD detection methods have limitations. Post hoc calibration techniques used for OOD detection during the inference phase suffer from slow inference and low OOD detection accuracy because pretrained classifiers were not originally designed for this task. Training-phase methods require auxiliary data, entail slow training, and result in a decrease in classification accuracy. To address these issues, this article proposes jointly employing discriminative representation learning through angular margin loss and weight regularization during neural network training. Angular margin loss extends the classification margin, whereas weight regularization ensures a gently sloped margin in the learned embedding space. By constructing a classification margin that is both gently sloped and enlarged, the proposed approach mitigates the overconfidence of OOD samples and overcomes the shortcomings of previous methods. The experimental results demonstrate that the proposed method outperforms state-of-the-art detectors in identifying OOD samples without any side effects.
Apparatus for heat pipe inside coating
No full text본 발명은 코팅액이 저장되는 코팅액 저장부; 내측으로 히트파이프가 하나 이상으로 배치되고, 상기 코팅액 저장부로부터 관로를 통해 코팅액을 공급받아 상기 히트파이프의 내부에 소수성 코팅층을 형성하는 코팅부; 및 상기 코팅액 저장부와 상기 코팅부에 사이에 높이차가 발생되도록 하여 상기 코팅액 저장부로부터 상기 코팅부로 코팅액이 공급 또는 공급 중단되도록 제어하는 높이 조절부를 포함하는 히트파이프 내부 코팅장치를 제공한다. 이러한 본 발명의 히트파이프 내부 코팅장치에 의하면, 히트파이프의 내면에 소수성의 코팅층을 형성할 때, 내부 표면에만 코팅층을 형성하여 코팅액의 불필요한 소모를 줄이고, 외부의 코팅층을 제거해야 하는 불필요한 작업을 생략하여 작업 생산성을 향상시킬 수 있다
Composition for surface modification of nano particle, Method for manufacturing composition for surface modification of nano particle, Method for surface modification of nano particle, Method for manufacturing surface modified nano particles and Surface modified nano particles
No full text본 발명의 일실시예는 나노입자 표면개질용 조성물, 나노입자 표면개질용 조성물 제조방법, 나노입자 표면개질 방법, 표면개질된 나노입자 제조방법 및 표면개질된 나노입자를 제공한다. 상세하게는 나노입자 표면개질용 복합체를 활용하여 양자 효율(quantum yield; QY)을 보존할 수 있을 뿐만 아니라 장기 안정성을 크게 향상시킨 나노입자 표면개질용 조성물, 나노입자 표면개질용 조성물 제조방법, 나노입자 표면개질 방법, 표면개질된 나노입자 제조방법 및 표면개질된 나노입자를 제공한다
Joint Optimization of Power Control and LSFD Coefficients for Uplink Cell-Free Massive MIMO in Weak Channel Hardening Environments
No full textThere have been extensive studies on performance analysis and/or system design for the uplink cell-free massive multiple-input multiple-output (CF-mMIMO) based on the Use-and-then-Forget (UatF) bound. The tightness of the UatF bound is, however, ensured in channel environments where the channel hardening manifests. It has been often reported that the channel hardening may not always be strongly observed in some channel environments. In such cases, the UatF bound seriously underestimates rates for users experiencing weak channel hardening. To address the issues associated with the UatF bound, we develop a new lower bound offering a more accurate estimate of the achievable rate for uplink in CF-mMIMO networks regardless of the extent of channel hardening. The claim is substantiated by applying the proposed bound to the joint optimization of power control and large-scale fading decoding (LSFD) coefficients for the design of CF-mMIMO networks on spatially correlated Rician fading channels. To facilitate the optimization, we also develop an approximation of the proposed bound in a more computationally amenable form. We conduct extensive performance evaluations and comparisons for CF-mMIMO networks designed with the proposed and UatF bounds. The comparisons highlight that the design based on the proposed bound leads to considerable performance improvement in the fairness. In addition, for the first time, we reveal with the new lower bound that an widely held belief based on the UatF bound is incorrect.
Silicon nanocolumn-based disposable and flexible ultrasound patches
No full textTraditional wearable ultrasound devices pose challenges concerning the rigidity and environmental impact of lead-based piezoelectric materials. This study proposes a silicon nanocolumn capacitive micromachined ultrasonic transducer (snCMUT) array for real-time wearable ultrasound imaging in disposable patches. Using a lead-free design, snCMUT incorporates silicon nanocolumns to address existing issues and achieves high transmission efficiency (220 kPa/V), flexibility, and low power consumption. The specialized structure of snCMUT enhances displacement efficiency, enabling high-resolution imaging while maintaining a thin, flexible form factor (similar to 900 mu m). Phantom imaging demonstrates its superior performance, with high axial and lateral resolutions (0.52 and 0.55 mm) and depth penetration (similar to 70 mm) at low voltage (8.9 V-PP). Upon successful application to monitor both sides of the human carotid arteries, snCMUT offers clear ultrasound images and continuous blood pressure waveform monitoring. This proposed innovation presents significant potential for continuous medical imaging and cardiovascular health assessment, addressing environmental concerns and reducing manufacturing costs (<$20).
The Effectiveness of Digital Trade Agreements: Upholding the Status Quo or Paving the Way Forward?
No full textThis study critically examines the effectiveness of key rules of Digital Trade Agreements (DTAs) through a legal analysis of their textual design. Drawing upon theories of behavioural effectiveness of international agreements from International Relations (IR) and international law scholarship, the study analyses how, from the perspective of negotiators and trade policy makers, DTA rules are textually designed to control the extent to which they influence the behaviour of the parties. By analysing DTAs concluded by major digital powers-the United States, the European Union, and China-the study identifies a recurring pattern: in issue areas where regulatory autonomy is prioritized, such as cross-border data flows, data localization, and source code, parties are generally reluctant to adopt legal rules that may significantly affect their domestic regulatory frameworks. This pattern underscores the limited capacity of DTAs, in their current form, to mandate behavioural change beyond the existing regulatory status quo. The key contribution of this research lies in its development of a conceptual framework for defining and assessing the legal effectiveness of DTAs from the perspective of negotiators and policy makers. This framework facilitates the identification of issue areas where effectiveness remains constrained and those not offers practical guidance for negotiators and policy makers in drafting more effective and enforceable commitments. In doing so, the study provides critical insights into how the legal design of DTA rules can be enhanced to achieve their objectives-addressing the challenges posed by regulatory fragmentation in digital trade.