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| 1 | Numerical Simulation of Innovative Operation of Blast Furnace Based on Multi-Fluid Model显示文摘A multi-fluid blast furnace model was simply introduced and was used to simulate several innovative ironmaking operations. The simulation results show that injecting hydrogen bearing materials, especially injecting natural gas and plastics, the hydrogen reduction is enhanced, and the furnace performance is improved simultaneously. Total heat input shows obvious decrease due to the decrease of heat consumption in direct reduction, solution loss and silicon transfer reactions. If carbon composite agglomerates are charged into the furnace, the temperature of thermal reserve zone will obviously decrease, and the reduction of iron-bearing burden materials will be retarded. However, the efficiency of blast furnace is improved just due to the decrease in heat requirements for solution loss, sinter reduction, and silicon transfer reactions, and less heat loss through top gas and furnace wall. Finally, the model is used to investigate the performance of blast furnace under the condition of top gas recycling together with plastics injection, cold oxygen blasting and carbon composite agglomerate charging. The lower furnace temperature, extremely accelerated reduction rate, drastically decreased CO2 emission and remarkably enhanced heat efficiency were obtained by using the innovative operations, and the blast furnace operation with superhigh efficiency can be realized. | CHU Man-sheng YANG Xue-feng SHEN Feng-man YAGI jun-ichiro NOGAMI Hiroshi | 2006 | Journal of Iron and Steel Research(International)2006,13,6: | 11 |
| 2 | Prospective postsurgical capsule endoscopy in patients with Crohn's disease显示文摘AIM: To clarify the usefulness of postsurgical capsule endoscopy(CE) in the diagnosis of recurrent small bowel lesions of Crohn's disease(CD). METHODS: This prospective study included 19 patients who underwent ileocolectomy or partial ileal resection for CD. CE was performed 2-3 wk after surgery to check for the presence/absence and severity of lesions remaining in the small bowel, and for any recurrence at the anastomosed area. CE was repeated 6-8 mo after surgery and the findings were compared with those obtained shortly after surgery. The Lewis score (LS) was used to evaluate any inflammatory changes of the small bowel. RESULTS: One patient was excluded from analysis because of insufficient endoscopy data at the initial CE. The total LS shortly after surgery was 428.3 on average(median, 174; range, 8-4264), and was ≥ 135(active stage) in 78%(14 of 18) of the patients. When the remaining unresected small bowel was divided into 3 equal portions according to the transition time(proximal, middle, and distal tertiles), the mean LS was 286.6, 83.0, and 146.7, respectively, without any significant difference. Ulcerous lesions in the anastomosed area were observed in 83% of all patients. In 38% of the 13 patients who could undergo CE again after 6-8 mo, the total LS was higher by ≥ 100 than that recorded shortly after surgery, thus indicating a diagnosis of endoscopic progressive recurrence. CONCLUSION: Our pilot study suggests that CE can be used to objectively evaluate the postoperative recurrence of small bowel lesions after surgery for CD. | Tomoaki Kono Nobuyuki Hida Koji Nogami Masaki Iimuro Yoshio Ohda Yoko Yokoyama Koji Kamikozuru Katsuyuki Tozawa Mikio Kawai Tomohiro Ogawa Kazutoshi Hori Hiroki Ikeuchi Hiroto Miwa Shiro Nakamura Takayuki Matsumoto | 2014 | World Journal of Gastrointestinal Endoscopy2014,6,3: | 7 |
| 3 | Prophylactic lateral pelvic lymph node dissection in stage Ⅳ low rectal cancer显示文摘AIM To assess the clinical significance of prophylactic lateral pelvic lymph node dissection (LPLND) in stage Ⅳ low rectal cancer.METHODS We selected 71 consecutive stage Ⅳ low rectal cancer patients who underwent primary tumor resection,and enrolled 50 of these 71 patients without clinical LPLN metastasis.The patients had distant metastasis such as liver,lung,peritoneum,and paraaortic LN.Clinical LPLN metastasis was defined as LN with a maximum diameter of 10 mm or more on preoperative pelvic computed tomography scan.All patients underwent primary tumor resection,27 patients underwent total mesorectal excision(TME) with LPLND(LPLND group),and 23 patients underwent only TME(TME group).Bilateral LPLND was performed simultaneously with primary tumor resection in LPLND group.R0 resection of both primary and metastatic sites was achieved in 20 of 50 patients.We evaluated possible prognostic factors for 5-year overall survival (OS),and compared 5-year cumulative local recurrence between the LPLND and TME groups.RESULTS For OS,univariate analyses revealed no significant benefit in the LPLND compared with the TME group (28.7% vs 17.0%,P = 0.523); multivariate analysis revealed that R0 resection was an independent prognostic factor.Regarding cumulative local recurrence,the LPLND group showed no significant benefit compared with TME group (21.4% vs 14.8%,P = 0.833).CONCLUSION Prophylactic LPLND shows no oncological benefits in patients with Stage Ⅳ low rectal cancer without clinical LPLN metastasis. | Hiroshi Tamura Yoshifumi Shimada Hitoshi Kameyama Ryoma Yagi Yosuke Tajima Takuma Okamura Mae Nakano Masato Nakano Masayuki Nagahashi Jun Sakata Takashi Kobayashi Shin-ichi Kosugi Hitoshi Nogami Satoshi Maruyama Yasumasa Takii Toshifumi Wakai | 2017 | World Journal of Clinical Oncology2017,8,5: | 4 |
| 4 | Effects of oral tacrolimus as a rapid induction therapy in ulcerative colitis显示文摘AIM:To determine the efficacy and safety of rapid induction therapy with oral tacrolimus without a meal in steroid-refractory ulcerative colitis(UC)patients.METHODS:This was a prospective,multicenter,observational study.Between May 2010 and August 2012,49 steroid-refractory UC patients(55 flare-ups)were consecutively enrolled.All patients were treated with oral tacrolimus without a meal at an initial dose of 0.1mg/kg per day.The dose was adjusted to maintain trough whole-blood levels of 10-15 ng/m L for the first 2 wk.Induction of remission at 2 and 4 wk after tacrolimus treatment initiation was evaluated using Lichtiger’s clinical activity index(CAI).RESULTS:The mean CAI was 12.6±3.6 at onset.Within the first 7 d,93.5%of patients maintained high trough levels(10-15 ng/m L).The CAI significantly decreased beginning 2 d after treatment initiation.At 2wk,73.1%of patients experienced clinical responses.After tacrolimus initiation,31.4%and 75.6%of patients achieved clinical remission at 2 and 4 wk,respectively.Treatment was well tolerated.CONCLUSION:Rapid induction therapy with oral tacrolimus shortened the time to achievement of appropriate trough levels and demonstrated a high remission rate 28 d after treatment initiation.Rapid induction therapy with oral tacrolimus appears to be a useful therapy for the treatment of refractory UC. | Ken Kawakami Takuya Inoue Mitsuyuki Murano Ken Narabayashi Sadaharu Nouda Kumi Ishida Yosuke Abe Koji Nogami Nobuyuki Hida Hirokazu Yamagami Kenji Watanabe Eiji Umegaki Shiro Nakamura Tetsuo Arakawa Kazuhide Higuchi | 2015 | World Journal of Gastroenterology2015,21,6: | 3 |
| 5 | Preparation of a nanocry stalline titanium dioxide negative electrode for the rechargeablelithium ion battery显示文摘 | NATARAJAN C SETOGUCHI K NOGAMI G | 1998 | Electrochimica Acta1998,43,: | 2 |
| 6 | Recovery of Protein from Chrome Shavings and Application as a Food Supplement for Tilapia Oreochromis Niloticus显示文摘 | Eurica M Nogami Claudia C M | 2000 | JALCA2000,195,: | 2 |
| 7 | Lithium ion conductivity of complex hydrides incorporating multiple closo–type complex anions显示文摘We report the lithium ionic conductivities of closo –type complex hydrides synthesized from various molar ratios of lithium borohydride(LiBH4) and decaborane(B10H14) as starting materials. The prepared closo –type complex hydrides comprised [B12H12]^2-, [B11H11]^2-, and [B10H10]^2- complex anions. In addition, increasing the LiBH4 content in the starting materials increased the amounts of [B11H11]^2- and [B10H10]^2-, leading to an improved ion conductivity of the prepared sample. The present study offers useful insights into strategies for controlling the complex anion composition in emerging solid electrolytes of closo-type complex hydrides at the molecular level, and improving their ionic conductivities. | Naoki Toyama Sangryun Kim Hiroyuki Oguchi Toyoto Sato Shigeyuki Takagi Masaru Tazawa Genki Nogami Shin-ichi Orimo | 2019 | Journal of Energy Chemistry2019,28,11: | 2 |
| 8 | Stability of pyrrolidone derivatives against γ-ray irradiation显示文摘To evaluate the stability of N-alkylated pyrrolidone derivatives(NRPs),which are supposed to be used as precipitants for U(VI) and Pu(IV,VI) species in HNO 3 media,under irradiation environment,some candidate NRPs were irradiated by γ-ray.Irradiation to HNO 3 solutions up to 6 mol dm 3(= M) containing 2 M N-n-butyl-2-pyrrolidone(NBP),one of NRPs with lower hydrophobicity,has revealed that the residual ratios of NBP in the samples of HNO 3 up to 3 M decreased identically and linearly.Approximately 20% of NBP was found to be degraded after the irradiation at 1 MGy.It was also found that the decrease in the precipitation ratio of UO 2 2+(P.R.,%) was gentle and that the P.R.values were relatively in accordance with the residual ratios of NBP.On the other hand,the degradation of the samples irradiated in 6 M HNO 3 was found more distinguished.It was proposed from the analyses of degraded compounds that the degradation of NBP in HNO 3 by γ-ray irradiation started from the cleavage of the pyrrolidone ring by the addition of oxygen atom originating from HNO 3,followed by the formation of chain compounds by the successive addition of oxygen,leading to the generation of oxalic acid and acetic acid.The stability of other NRPs in 3 M HNO 3 was evaluated to be nearly identical with that of NBP except lower P.R.values of the samples containing NRPs with higher hydrophobicity irradiated at more than 0.5 MGy. | NOGAMI Masanobu SUGIYAMA Yuichi KAWASAKI Takeshi HARADA Masayuki KAWATA Yoshihisa MORITA Yasuji KIKUCHI Toshiaki IKEDA Yasuhisa | 2012 | Science China Chemistry2012,55,9: | 2 |
| 9 | Study of Fluid Flow and Mixing Behaviour of a Vacuum Degasser显示文摘 | M. Mondal N. Maruoka S. Kitamura G. Gupta H. Nogami H. Shibata | 2012 | Transactions of the Indian Institute of Metals2012,,3: | 2 |
| 10 | Soil-Pile interaction in vertical vibration 显示文摘 | Nogami T Novak M | 1976 | Earthquake Eng Struct Dyn1976,4,1: | 2 |
| 11 | Vertical Vibration of Pile in Vibration-Induced Excess Pore Pressure Field显示文摘 | Toyoaki Nogami Fenzhi Ren Jen-Wha Chen Alfred B. Mason | 1997 | Journal of Geotechnical and Geoenvironmental Engineering1997,,5: | 2 |
| 12 | A mathematical model of blast furnace reaction analysis based on the four fluid model显示文摘 | AUSTIN P R NOGAMI H YAGI J | 1997 | ISIJ International1997,37,8: | 1 |
| 13 | Influence of TiOz on proton conductivity in fuel cell electrolytes based on sol-gel derived P2O5-SiO2 glasses显示文摘 | Uma T Nogami M | 2005 | Journal of Non-Crystalline Solids2005,,351: | 1 |
| 14 | Soil-pile interaction in vertical vibration 显示文摘 | NOGAMI T NOVAK M | 1976 | Earthquake Engineering and Structure Dynamic1976,4,3: | 1 |
| 15 | Dynamic soil stiffnesses at side of embedded structures with rectangular base 显示文摘 | Nogami T Chen H S | 2003 | Journal of Engineering Mechanics2003,129,8: | 1 |
| 16 | Numerical Analysis on Blast Furnace Performance Under Operation with Top Gas Recycling and Carbon Composite Agglomerates Charging显示文摘 | Nogami H Yagi J | 2004 | ISU International2004,44,12: | 1 |
| 17 | Dynamic Soil Reaction for Plain Strain Case显示文摘 | Novak M Nogami T Aboul-Ella F | 1978 | Journal of the Engineering Mechanics Divi sion1978,104,4: | 1 |
| 18 | Vertical vibration of pile in vibration-induced excess pore pressure field显示文摘 | NOGAMI T REN F CHEN J MASON A | 1997 | Journal of Geotechnical and Geoenvironmental Engineering1997,123,5: | 1 |
| 19 | Dynamic group effect in axial responses of grouped Piles显示文摘 | Nogami T | 1983 | Journal of Geotechnical Engineering ASCE1983,109,2: | 1 |
| 20 | Exhaled nitric oxide as a simple assessment of airway hyperesponsiveness in bronchial asthma and chronic cough patients显示文摘 | Nogami H Shoji S Nishima S | 2003 | J Asthma2003,40,6: | 1 |