1600V, 300A STATIC INDUCTION (SI) THYRISTOR

J.Nishizawa,K.Muraoka,Y.Ohtsubo,K.Yoshioka 전력전자학회 1989 ICPE(ISPE)논문집 Vol.- No.-

Static Induction (SI) thyristors were invented by NISHIZAWA in 1973 (I). Since then, intensive re­searches have been made to put them into practice in various fields as large power devices (2) {3). Among them, 1200V, 300A SI thyristor has been developed to be applied to a high frequency applica­tion equipment (4). This device has bee applied to develop a high frequency inverter (6), active fil­ter {7), current source high frequency inverter (8), etc. These applications proved that the items of device tosses considerably varied depending on the circuit design and operation mode of the voltage source inverter, current source inverter and an e-quipment using a resonance circuit. It is expected, therefore, that a device be designed to meet a par­ticular circuit and operation mode to improve the equipment conversion efficiency. We have recently developed two types of 1600V, 300A class SI thyris-tors whose peak turn-off current is 800A so as to apply them to the voltage source and current source inverters for PWM circuit and for resonance circuit respectively. Their device characteristics will be outlined as follows .

3-METHYLHISTIDINE AND MUSCLE PROTEIN TURNOVER IN RUMINANTS

Nishizawa, N.,Itabashi, H.,Igarashi, S.,Tazawa, Y.,Fujiwara, K.,Watanabe, S.,Hareyama, S. Asian Australasian Association of Animal Productio 1989 Animal Bioscience Vol.2 No.3

The “Two-Sword Fencing” Technique in Endoscopic Submucosal Dissection

Toshihiro Nishizawa,Toshio Uraoka,Yasutoshi Ochiai,Hidekazu Suzuki,Osamu Goto,Ai Fujimoto,Tadateru Maehata,Takanori Kanai,Naohisa Yahagi 대한소화기내시경학회 2015 Clinical Endoscopy Vol.48 No.1

20세기 초 대련의 도시공간형성과 건축

니시자와야스히코 ( Nishizawa Yasuhiko ) 한림대학교 일본학연구소 2016 翰林日本學 Vol.0 No.29

본고에서는 20세기 전반, 도시건설이 활발히 이루어진 다롄에 착목하여 제정러시아와 일본의 식민지 지배 아래 형성된 도시공간과 그 공간에 건축된 건축의 특징, 그리고 그 시기활동한 건축가의 인물상을 중심으로 동아시아의 근대에 대하여 고찰하였다. 19세기 말 제정러시아의 세계 전략의 일환으로서 도시건설이 시작된 다르니(대련)는 동아시아에서 유일하게 다심방사형의 시가지 건설이 추진되었다. 또한 기호성 높은 바로크적 도시계획 아래, 지형을 고려한 시가지건설, 인종에 따른 거주지 구분, 해상과 육상을 잇는 항만건설 등이 추진되었다. 그러나 도시 건설이 한참이던 가운데 러일전쟁이 발발하고, 이로 인해 시가지는 극히 일부가 갖추어지는데 그친다. 이후 러일전쟁의 결과, 다롄은 일본의 조차지가 된다. 이 시기에는 제정 러시아에 의한 도시계획을 답습하면서도 일본인 건축가에 의한 건물이 세워지며 도시공간을 형성해 나간다. 그 과정에서 경제활동과 도시생활을 지지하는 기반시설의 건설, 도시의 미관과 불연화를 유도하는 건축규칙의 시행, 도시건설로서 세계적 수준의 건축이라 부를 만한 건물의 설계와 건설이 이루어 진다. 그 결과 1930년 경에는 이미 제정러시아가 계획하고 있던 범위에서의 도시공간이 성립하였으나, 그것은 기호성이 높은 바로크적 도시계획 위에 미관과 불연화를 지향하는 건물들이 들어서는 형태로 이루어진 것이었다. 일반적으로 서구열강이 세계 각국에서 전개한 식민지도시건설의 경우, 자국의 건축과 비슷한 건축물을 식민지도시에서 건설하는 것이 통상적이었으나, 다롄의 경우 일본 지배하에 지어진 소위 `일본적 건축물`은 종교적인 건물을 중심으로 극히 일부에 한정되는 경향을 보였다. 따라서 일본 본토에서 다롄에 이주하여 살던 일본인에게 다롄은 본토의 지방도시에서는 체험하지 못한 `서양풍의 도시공간`을 이루고 있었던 것이 된다. 또한 이러한 건축물을 설계한 일본인 건축가는 당시의 정치상황을 반영한 활동을 전개하기도 하였다. This paper focuses on Dalian where urban construction advanced in the first half of the 20th century as a specific example of the theme of the symposium “The Social History Space and Movement in East Asia : Empire, Decolonization, and the Cold War”, the emperor Russia and Japanese colonial rule Think of the modernity of East Asia through the urban space formed by, the characteristics of the architectures built there, and the figures of the architects who worked there. Darliny (Dalian), where urban construction began as part of Imperial Russia `s global strategy at the end of the 19th century, was built as a multi - core radiation city in East Asia. There, a memorable baroque city planning, an urban area construction considering the topography, a supremacy according to the race, and a port construction on the premise of the land and sea contact were advanced. However, due to the Russo-Japanese War in the middle of the construction, only a small part of the urban area was established as a city. As a result of the Russo-Japanese War, Dalian became a leasehold land of Japan, a urban space was formed by building a building by the design of a Japanese architect, while urban planning by Imperial Russia was followed. There, a memorable baroque city planning, an urban area construction considering the topography, a supremacy according to the race, and a port construction on the premise of the land and sea contact were advanced. However, due to the Russo-Japanese War in the middle of the construction, only a small part of the urban area was established as a city. As a result, around 1930, urban space was established in the range that Emperor Russia planned, but it is a building that aims at urban beauty and noncombustiblization along with a memorable baroque city planning Was formed. Generally, in the colonial city construction which the Western powers developed in various parts of the world, it was common to build a building equivalent to the building of their own country in colonial cities, but in Dalian, despite being under Japanese rule, It was a big difference that the so-called “Japanese architecture” was limited to religious buildings and some relaxing facilities. Therefore, for Japanese who lived in Dalian from within Japan, `Western-style urban space` was established which can not be experienced in local cities in the country. Also, Japanese architects who designed these buildings were developing activities reflecting the political situation of this time Japan had dominance in East Asia.

The Horticultural Characteristics of Commercially Grown Chilean Strawberry(Fragaria chiloensis)

Takashi Nishizawa,Yuko Kondo,Yuko Mori,Yasuhiro Maruyama,Yoshie Motomura 한국원예학회 2009 Horticulture, Environment, and Biotechnology Vol.50 No.5

福澤諭吉(후쿠자와 유키치)의 근대화구상과 여성론 -『여대학(女大學)』비판의 구도를 중심으로-

니시자와나오코 ( Nishizawa Naoko ) 한국여성사학회 2005 여성과 역사 Vol.- No.2

Fukuzawa Yukichi hoped to change a situation surround Japanese women in the Meiji Era. He had been wrestling women`s problems all his life and wrote many women`s works. He thought it was very important not only that laws about women`s rights legislated, but also that old convention was changed. He criticized Confucianism. Because at that time in Japan Confucianism provided that women should obey their father, husband and sons. Women weren`t admitted as individual. He wanted to establish new morals. A typical book about instruction for women was "Onnadaigaku". He tried to eradicate old convention on "Onnadaigaku", and advocated "Sin[new] Onnadaigaku". But he failed in the establishment of new morals. The reasons of failure were 1) problem about property rights in early Capitalism 2) problem about succession 3) a new thought based on Confucianism could clearly show how women contributed to Nation.

Long-Term Outcomes of Using Endoscopic Submucosal Dissection to Treat Early Gastric Cancer

Toshihiro Nishizawa,Naohisa Yahagi 거트앤리버 소화기연관학회협의회 2018 Gut and Liver Vol.12 No.2

Endoscopic submucosal dissection (ESD) is becoming the main procedure for the resection of early gastric cancer (EGC). The absolute indications for treating EGC with endoscopic resection were established by the Japanese Gastric Cancer Association and have been generally accepted. However, the absolute indications for treating EGC are rather strict, and expanded indications have been developed. Many studies have reported favorable long-term outcomes for patients who received curative resection for the expanded indication. ESD preserves the stomach, thereby improving patients’ quality of life compared to surgery; however, a generally higher incidence of metachronous gastric cancer has been reported after ESD for EGC. Therefore, clinicians must pay careful attention during surveillance endoscopy, even after a curative ESD.

Physiological Traits of Commercially Grown Chilean Strawberries (Fragaria chiloensis)

Takashi Nishizawa,Yuko Mori,Yuko Kondo,Yasuhiro Maruyama 한국원예학회 2008 한국원예학회 기타간행물 Vol.- No.-

Risk Factors for Prolonged Hospital Stay after Endoscopy

Toshihiro Nishizawa,Shuntaro Yoshida,Osamu Toyoshima,Tatsuya Matsuno,Masataka Irokawa,Toru Arano,Hirotoshi Ebinuma,Hidekazu Suzuki,Takanori Kanai,Kazuhiko Koike 대한소화기내시경학회 2021 Clinical Endoscopy Vol.54 No.6

Background/Aims: The recovery room used after endoscopy has limited capacity, and an efficient flow of the endoscopy unitis desired. We investigated the duration of hospital stay after endoscopy and the risk factors for prolonged hospital stay amongoutpatients. Methods: We retrospectively studied consecutive patients who underwent esophagogastroduodenoscopy or colonoscopy at theToyoshima Endoscopy Clinic. We collected data on age, sex, body weight, midazolam and pethidine dosage, respiratory depressionduring endoscopy, and duration of hospital stay after endoscopy (scope out to check out). Risk factors for prolonged hospital stay (>100minutes) were identified using multiple logistic regression analysis. Results: We enrolled 3,898 patients, including 3,517 (90.2%) patients tested under sedation and 381 (9.8%) patients tested withoutsedation. Overall, 442 (11.3%) patients had prolonged stay (>100 min). The mean time difference between sedation group and nonsedationgroup was 44.2 minutes for esophagogastroduodenoscopy and 39.1 minutes for colonoscopy. Age (odds ratio [OR], 1.025;95% confidence interval [CI], 1.014−1.036), female sex (OR, 1.657; 95% CI, 1.220−2.249), and midazolam dose (OR, 1.019; 95% CI,1.013−1.026) were independently associated with prolonged hospital stay after esophagogastroduodenoscopy, with similar results forcolonoscopy. Conclusions: Old age, female sex, and midazolam dose were independent risk factors for prolonged hospital stay after endoscopy.

Solidification of slippery lubricant layer on anodized aluminum for improved durability

Keita Nishizawa,Hisato Matsuy,Mana Iwai,Sho Kitano,Koji Fushimi,Hiroki Habazaki 한국표면공학회 2023 한국표면공학회 학술발표회 초록집 Vol.2023 No.11-1