193 research outputs found
Transforming Dress
In this paper, we produce a fashion show in which a dress is transformed over time, with a storyline of a robot that experiences some emotional changes after falling in love, sheds a symbolic teardrop and at the end becomes a lovely woman. This transformability, which cannot be done in a real fashion show, could open the potential for a new kind of creativity in the fashion industry
High-efficiency Bidirectional Buck-Boost Converter for Residential Energy Storage System
This paper proposes a bidirectional dc-dc converter for residential micro-grid applications. The proposed converter can operate over an input voltage range that overlaps the output voltage range. This converter uses two snubber capacitors to reduce the switch turn-off losses, a dc-blocking capacitor to reduce the input/output filter size, and a 1:1 transformer to reduce core loss. The windings of the transformer are connected in parallel and in reverse-coupled configuration to suppress magnetic flux swing in the core. Zero-voltage turn-on of the switch is achieved by operating the converter in discontinuous conduction mode. The experimental converter was designed to operate at a switching frequency of 40-210 kHz, an input voltage of 48 V, an output voltage of 36-60 V, and an output power of 50-500 W. The power conversion efficiency for boost conversion to 60 V was >= 98.3% in the entire power range. The efficiency for buck conversion to 36 V was >= 98.4% in the entire power range. The output voltage ripple at full load was <3.59 V-p.p for boost conversion (60 V) and 1.35 V-p.p for buck conversion (36 V) with the reduced input/output filter. The experimental results indicate that the proposed converter is well-suited to smart-grid energy storage systems that require high efficiency, small size, and overlapping input and output voltage ranges.11Ysciescopu
Digital production of traditional costumes
The purpose of this study is to find out the possibility of reproducing traditional costumes using the digital technology. For this, we selected a womenās robe and a menās suit in the rococo era of the 18th century. For the reconstruction, we analyzed the costume focusing on the figurative features of the silhouette, and then applied the 3D technology to reconstruct them
Excision And Recovery: Visual Defect Obfuscation Based Self-Supervised Anomaly Detection Strategy
Due to scarcity of anomaly situations in the early manufacturing stage, an
unsupervised anomaly detection (UAD) approach is widely adopted which only uses
normal samples for training. This approach is based on the assumption that the
trained UAD model will accurately reconstruct normal patterns but struggles
with unseen anomalous patterns. To enhance the UAD performance,
reconstruction-by-inpainting based methods have recently been investigated,
especially on the masking strategy of suspected defective regions. However,
there are still issues to overcome: 1) time-consuming inference due to multiple
masking, 2) output inconsistency by random masking strategy, and 3) inaccurate
reconstruction of normal patterns when the masked area is large. Motivated by
this, we propose a novel reconstruction-by-inpainting method, dubbed Excision
And Recovery (EAR), that features single deterministic masking based on the
ImageNet pre-trained DINO-ViT and visual obfuscation for hint-providing.
Experimental results on the MVTec AD dataset show that deterministic masking by
pre-trained attention effectively cuts out suspected defective regions and
resolve the aforementioned issues 1 and 2. Also, hint-providing by mosaicing
proves to enhance the UAD performance than emptying those regions by binary
masking, thereby overcomes issue 3. Our approach achieves a high UAD
performance without any change of the neural network structure. Thus, we
suggest that EAR be adopted in various manufacturing industries as a
practically deployable solution.Comment: 10 pages, 5 figures, 5 table
Endoscopic Ultrasound-Guided Drainage without Fluoroscopic Guidance for Extraluminal Complicated Cysts
Background. Endoscopic ultrasound- (EUS-) guided drainage is generally performed under fluoroscopic guidance. However, improvements in endoscopic and EUS techniques and experience have led to questions regarding the usefulness of fluoroscopy. This study aimed to retrospectively evaluate the safety and efficacy of EUS-guided drainage of extraluminal complicated cysts without fluoroscopic guidance. Methods. Patients who had undergone nonfluoroscopic EUS-guided drainage of extraluminal complicated cysts were enrolled. Drainage was performed via a transgastric, transduodenal, or transrectal approach. Single or double 7 Fr double pigtail stents were inserted. Results. Seventeen procedures were performed in 15 patients in peripancreatic fluid collections (n=13) and pelvic abscesses (n=4). The median lesion size was 7.1ācm (range: 2.8ā13.0ācm), and the mean time spent per procedure was 26.2Ā±9.8 minutes (range: 16ā50 minutes). Endoscopic drainage was successful in 16 of 17 (94.1%) procedures. There were no complications. All patients experienced symptomatic improvement and revealed partial to complete resolution according to follow-up computed tomography findings. Two patients developed recurrent cysts that were drained during repeat procedures, with eventual complete resolution. Conclusion. EUS-guided drainage without fluoroscopic guidance is a technically feasible, safe, and effective procedure for the treatment of extraluminal complicated cysts
Korean Version of Mini Mental Status Examination for Dementia Screening and Its' Short Form
Objective We developed a Korean version of Mini-Mental Status Examination (MMSE) optimized for screening dementia (MMSE-DS) and its short form (SMMSE-DS). Methods We constructed the MMSE-DS using the items of the two current Korean versions of MMSE and then construct the SMMSE-DS consisted of 13 items from the MMSE-DS based on the diagnostic accuracy of individual items for dementia. We investigated reliability and validity of MMSE-DS and SMMSE-DS on 1,555 subjects (1,222 nondemented controls, 333 dementia patients). We compared the diagnostic accuracy of the SMMSE-DS with that of the three full Korean versions of MMSE, and examined its age- and education-specific optimal cutoff scores for dementia. Results The internal consistency obtained by Cronbach`s coefficient alpha was 0.826. The inter-rater reliability and test-retest reliability were 0.968 (p<0.001) and 0.825 (p<0.001), respectively. It showed significant correlation with the Clinical Dementia Rating (CDR) (r=-0.698, p<0.05) and the three full Korean versions of MMSE (r=0.839-0.938, p<0.001). The area under the receiver operator curve for dementia of the SMMSE-DS was larger than those of the three full Korean versions of MMSE (p<0.001). Age, education and gender explained 19.4% of the total variance of SMMSE-DS scores. The optimal cutoff scores for dementia of the SMMSE-DS were estimated differently by age and educational attainment of the subjects. Conclusion The SMMSE-DS was found to be accurate, brief and portable instrument for screening dementia in Korean elders, and may be particularly useful for screening dementia in elderly populations with wide variation in educational levels. Psychiatry Investig 2010;7:102-108This study was supported by a research grant from the Ministry of Health
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