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Low-power functionality of silicon-nanowire-assembled inverters on bendable plastics

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Nano Research 2016年第5期9卷 1409-1417页

作者： youngin jeon Myeongwon Lee Minsuk Kim Yoonjoong Kim Sangsig Kim Department of Electrical Engineering Korea University 145 Anam-ro Seongbuk-gu Seoul 02841 Republic of Korea

In this paper, we demonstrate the low-power functionality of silicon nanowire （SiNW）-assembled inverters on bendable plastics. Our bendable inverters are capable of operating at supply voltages as low as 0.8 V with a switching （or standby） power consumption of -0.2 nW （or -6.6 pW）. The low-power inverting operation with a voltage gain of -18 is attributable to the near-ideal characteristics of the component transistors that have selectively thinned SiNW channels and exhibit low, symmetrical threshold voltages of 0.40 and -0.39 V and low subthreshold swing values of 81 and 65 mV/dec. Moreover, mechanical bendability reveals that the inverting operation has good, stable fatigue properties.

关键词： silicon nanowire inverter low-power functionality bendable electronics

Nanowatt power operation of silicon nanowire NAND logic gates on bendable substrates

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Nano Research 2016年第12期9卷 3656-3662页

作者： Junggwon Yun Myeongwon Lee youngin jeon Minsuk Kim Yoonjoong Kim Doohyeok Lim Sangsig Kim Department of Electrical Engineering Korea University 145 Anam-ro Seongbuk-gu Seoul 02841 Republic of Korea

In this paper, we propose a novel construction of silicon nanowire （SiNW） negative-AND （NAND） logic gates on bendable plastic substrates and describe their electrical characteristics. The NAND logic gates with SiNW channels are capable of operating with a supply voltage as low as 0.8 V, with switching and standby power consumption of approximately 1.1 and 0.068 nW, respectively. Superior electrical characteristics of each SiNW transistor, including steep subthreshold slopes, high Ion/off ratio, and symmetrical threshold voltages, are the major factors that enable nanowatt-range power operation of the logic gates. Moreover, the mechanical bendability of the logic gates indicates that they have good and stable fatigue properties.

关键词： negative-AND (NAND)logic gates bendable electronics silicon nanowires nanowatt operation

Postoperative adjuvant chemoradiotherapy in D2-dissected gastric cancer: Is radiotherapy necessary after D2-dissection?

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World Journal of Gastroenterology 2014年第36期20卷 12900-12907页

作者： Jee Suk Chang Woong Sub Koom youngin Lee Hong In Yoon Hyung Sik Lee Department of Radiation Oncology Yonsei University College of Medicine Seoul 120-752 South Korea Department of Radiation Oncology Dong-A University Hospital Busan 602-715 South Korea

Studies from the Far East have demonstrated that D2-dissection is superior to D0/1-dissection. The effect of postoperative chemoradiotherapy(CRT) after D2-dissection has not been accepted due to the lack of D2-dissection in Western countries, as well as the potential harmful effect of radiotherapy. In the current NCCN guideline, adjuvant chemotherapy alone is recommended in D2-dissected patients. However, three recent prospective randomized controlled trials in South Korea and China(ARTIST, NCC and Multicenter IMRT Trials) demonstrated that adjuvant CRT can be safely administered to D2-dissected patients with notable benefits. To identify the role of radiotherapy(RT) in the D2-dissected postoperative setting, clinical research attempts should include(1) identification of high-risk patients for loco-regional recurrence who might benefit from CRT;(2) modification of RT target volume based on the findings that failure patterns should be different after D1- and D2-dissection; and(3) integration of new RT techniques to decrease treatment-related toxicity. The present paper is a review of recent studies addressing these fields. Well-designed prospective randomized studies are needed to clearly define the role of adjuvant CRT in D2-dissected gastric cancer, however, future clinical studies should also focus on answering these questions.

关键词： Gastric cancer D2-dissection Recurrence Radiotherapy Chemotherapy

Weight loss maintenance after bariatric surgery

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World Journal of Clinical Cases 2023年第18期11卷 4241-4250页

作者： Young-Hye Cho youngin Lee Jung In Choi Sae Rom Lee Sang Yeoup Lee Department of Family Medicine Pusan National University School of MedicineYangsan 50612South Korea Department of Family Medicine Pusan National University Yangsan HospitalYangsan 50612South Korea Family Medicine and Biomedical Research Institute Pusan National University Yangsan HospitalYangsan 50612South Korea Department of Medical Education Pusan National University School of MedicineYangsan 50612South Korea

Metabolic and bariatric surgery(MBS)is an effective treatment for patients with morbid obesity and its ***,many patients experience weight regain(WR)after achieving their nadir *** the definition of WR is challenging as postoperative WR has various *** factors for WR after MBS include anatomical,racial,hormonal,metabolic,behavioral,and psychological factors,and evaluating such factors preoperatively is ***-term regular follow-up and timely treatment by a multidisciplinary team are important because WR after surgery is *** lifestyle interventions that focus on appropriate dietary education,physical activity education or interventions,and behavioral psychological interventions are suggested,more well-designed studies are needed because studies evaluating intervention methods and the effectiveness of WR prevention are *** drugs can be used to prevent and manage patients with WR after MBS;however,more research is needed to determine the timing,duration,and type of anti-obesity drugs used to prevent WR.

关键词： Metabolic and bariatric surgery Weight regain Obesity Roux-en-Y gastric bypass Laparoscopic sleeve gastrectomy

Novel saline injection technique for the reversal of the continuous costoclavicular block

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Chinese Medical Journal 2021年第24期134卷 3023-3024页

作者： Jihyun Chung Seunguk Bang youngin Lee Woojin Kwon Kyudon Chung Department of Anesthesiology and Pain Medicine College of MedicineThe Catholic University of KoreaSeoulRepublic of Korea Department of Anesthesiology and Pain Medicine Daejeon St.Mary’s HospitalCollege of MedicineThe Catholic University of KoreaDaejeonRepublic of Korea

To the Editor:Although regional anesthesia provides prolonged post-operative analgesia,there is no suitable method that can facilitate an early reversal of the blockade until the duration of action of the local anesthetic has elapsed.A large quantity of saline is used to reverse the central neuraxial block.[1,2]However,to our knowledge,no study has reported a method for reversing nerve blockade in peripheral nerve blocks,especially costoclavicular ***,we report a case of dramatic recovery of both motor and sensory functions after saline injection through the catheter in a patient who was administered a continuous costoclavicular block for analgesia after shoulder surgery.

关键词： injection operative cost

Hoarseness of voice and discomfort in the throat observed after quadratus lumborum block

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Chinese Medical Journal 2021年第16期134卷 2009-2010页

作者： Jihyun Chung Seunguk Bang Woojin Kwon youngin Lee Jinsoo Kim Department of Anesthesiology and Pain Medicine College of MedicineThe Catholic University of KoreaSeoulRepublic of Korea Department of Anesthesiology and Pain Medicine Ajou University College of MedicineSuwonRepublic of Korea.

To the Editor:Transmuscular quadratus lumborum block(TQLB)is known to provide visceral analgesia by blocking sympathetic fibers by spreading into the thoracic paravertebral spaces.[1]It is relatively safer than other conventional methods of ***,to our knowledge,there have been no reports of hoarseness associated with ***,we report two cases of hoarseness and discomfort to the throat after TQLB.

关键词： muscular sympathetic analgesia

采用铜导电油墨在改性柔性基材上实现喷墨印刷

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中国印刷与包装研究 2010年第5期2卷 76-78页

作者： GOO Yongsung LEE youngin KIM Namwoo LEE Kunjae YOO Bongyoung HONG Sungjei KIM Joong-do CHOA Yongho 王晓芳 Division of Materials and Chemical Engineering Hanyang University Information Display Research Center Korea Electronics Technology InstituteSeongnamRepublic of Korea Digital Solution R&D Center Samsung Techwin Co.LTDYongin 446-712Republic of Korea

本文采用铜导电油墨在聚酰亚胺(PI)薄膜上进行喷墨印刷形成铜导电层,并研究基于铜络合物的铜导电油墨与柔性基材的相关性。本研究首先采用氧等离子体对PI薄膜表面进行改性,以测试接触角来表征改性前后薄膜表面性能的变化。通过优化等离... 详细信息

本文采用铜导电油墨在聚酰亚胺(PI)薄膜上进行喷墨印刷形成铜导电层,并研究基于铜络合物的铜导电油墨与柔性基材的相关性。本研究首先采用氧等离子体对PI薄膜表面进行改性,以测试接触角来表征改性前后薄膜表面性能的变化。通过优化等离子体反应参数使接触角降低。再利用喷墨印刷在改性前后PI薄膜上沉积铜导线,在200℃氢气环境下进行热处理,印制铜线发生烧结而收缩。采用光学显微镜(OM)、场发射扫描电子显微镜(FESEM)、X射线衍射(XRD)、非接触式三维轮廓仪和四点探针分析铜导线形状、微观结构、晶体结构及电导率。结果表明,经氧等离子体改性的PI基材上可成功沉积具有纯铜相的连续铜导线且具有良好的烧结微观结构,同时确定了铜导电油墨与基材表面性能的相关性。

关键词：印刷导电油墨等离子体表面改性