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Charge-Spin Correlation in van der Waals Antiferromagnet NiPS3
Kim, So Yeun,Kim, Tae Yun,Sandilands, Luke J.,Sinn, Soobin,Lee, Min-Cheol,Son, Jaeseok,Lee, Sungmin,Choi, Ki-Young,Kim, Wondong,Park, Byeong-Gyu,Jeon, C.,Kim, Hyeong-Do,Park, Cheol-Hwan,Park, Je-Geun American Physical Society 2018 Physical Review Letters Vol.120 No.13
Kim, Honsoul,Lim, Joon Seok,Choi, Jin Young,Park, Jaeseok,Chung, Yong Eun,Kim, Myeong-Jin,Choi, Eunhee,Kim, Nam Kyu,Kim, Ki Whang Radiological Society of North America 2010 Radiology Vol.254 No.2
<P>Purpose: To compare the local-regional staging accuracy of the conventional two-dimensional (2D) T2-weighted imaging protocol and of the three-dimensional (3D) T2-weighted imaging protocol for preoperative magnetic resonance (MR) imaging in rectal cancer patients. Materials and Methods: This retrospective study was approved by the institutional review board, and a waiver of informed consent was obtained. A review was conducted of 109 preoperative 3-T MR images obtained with 2D and 3D T2-weighted imaging protocols in rectal cancer patients. Two radiologists independently assessed the radiologic findings for T and N category lesions, conspicuity of tumor margin, and image quality of 2D and 3D data. Interactive multiplanar reconstruction was performed for 3D data analysis. The linear weighted kappa values for T2-weighted imaging staging results (2D and 3D data) and histopathologic staging results were calculated and compared. Wilcoxon signed rank test was performed to compare tumoral conspicuity and overall image quality. Results: T category lesion staging accuracy values for 2D and 3D data, respectively, were 66.0% and 67.0% for reviewer 1 (P = .465) and 63.3% and 56.9% for reviewer 2 (P = .402). N category lesion staging accuracy values for 2D and 3D T2-weighted images, respectively, were 64.2% and 57.8% for reviewer 1 (P = .427) and 47.7% and 62.4% for reviewer 2 (P = .666). Tumor conspicuity was better for 2D T2-weighted imaging, but no significant difference in image quality was observed. Conclusion: Preoperative MR imaging in rectal cancer patients for staging with conventional 2D and multiplanar reconstruction 3D T2-weighted imaging protocols showed no significant differences in accuracy of T and N category staging and overall image quality, as determined by degree of artifact. However, the 3D T2-weighted imaging protocol had limitations in regard to lesion conspicuity. (c) RSNA, 2010.</P>
지방흡입 및 복부성형수술 후 유착후유증 환자의 초음파 유도 하 침도 치료1례 증례 보고
Kim Jaeseok,Jung Sehun,Kim Hongik 대한침도의학회 2023 대한침도의학회지 Vol.7 No.1
Background: Adhesion after Liposuction can occur due to injuries to muscles and fascia, leading to skin adhesions, contracted fibrosis. In such cases, adhesions and fibrosis can be removed using Acupotomy. However, in the abdomen, there is a risk of damaging organs as the thickness of the muscle layer varies between individuals. Methods: The surgical site and areas of complaint are observed in patients who complain of postoperative symptoms and pain-inducing movements. Ultrasound scans are used to confirm that the tissue suspected of causing problems is located 2-2.5 cm below the area where the patient reports pain, and Acupotomy are then used on the tissue. Results: The ultrasound-guided Acupotomy treatment was continued, resulting in a decrease in NRS to 3, and the patient’s discomfort in daily life was significantly reduced. Conclusion: Ultrasound-guided Acupotomy is effective for postoperative adhesion after abdominal etching. For patients with postoperative adhesion in the abdomen, there is a need for ultrasound guidance to consider anatomical characteristics.
Efficient Soft-Output Lattice-Reduction-Aided MIMO Detector with Low Complexity
KIM, Hyunsub,KIM, Jaeseok 'Institute of Electronics, Information and Communi 2017 IEICE TRANSACTIONS ON COMMUNICATIONS - Vol.100 No.10
<P>In this paper, an improved lattice reduction (LR)-aided soft-output multiple-input multiple-output (MIMO) detector is proposed. Conventional LR-aided soft-output MIMO detectors involve the empty set problem (ESP), in which an entry with a particular bit in the candidate list might not exist. To overcome the performance degradation resulting from this ESP, a post-processing algorithm that modifies the candidate list is proposed. The proposed algorithm efficiently resolves the ESP by utilizing the near-orthogonality of the lattice-reduced system model so that the bit error rate (BER) performance is enhanced. In addition, as the complexity of the candidate list generation is reduced with the aid of the post-processing algorithm, the overall complexity is also reduced. Simulation results and the complexity comparisons demonstrate that our proposed method lowers the required E-b/N-o by 4-5 dB at the BER of 10(-5) and the complexity by 13%-55%, compared to the conventional method.</P>