检索结果-南通市图书馆

Successful Surgical Treatment of Bilateral Fibroepithelial Polyps in the Labia Minora of an Adolescent Female: A Case Report

在线全文

学校读者我要写书评

暂无评论

Open Journal of Obstetrics and Gynecology 2023年第4期13卷 775-779页

作者： yutaka Kanamori Takeshi Saito Tamotsu Kobayashi Takako Yoshioka Division of Surgery Department of Surgical Specialties National Center for Child Health and Development Tokyo Japan Department of Pathology National Center for Child Health and Development Tokyo Japan

Background: Fibroepithelial polyp in the vulva is a rare disease mainly seen in female adolescents and young adults, and several reports were published in the past. Some cases showed large polyps that might be misinterpreted as malignant tumors such as aggressive angiomyxoma. Aim: We report a case of bilateral fibroepithelial polyps in the labia minora in an adolescent age girl. Case Presentation: A 16 year-old-girl was referred to our department for the treatment of an enlarged skin-tag appearance lesion at the right sided labia minora. The lesion was resected and the microscopic finding was a fibroepithelial polyp. One year after the first operation the patient was again referred to our department for the treatment of a skin-tag lesion at the left sided labia minora. It was again resected and the pathological diagnosis was a fibroepithelial polyp. Conclusion: Fibroepithelial polyp of the labia minora is not common and it is often seen in adolescent girls and in young adults. Bilateral lesions and skin-tag appearance are especially rare. The lesion should be excised for obtaining the correct diagnosis.

关键词： Fibroepithelial Polyp Labia Minora Skin Tag

Laser Trimming for Adjustment of Grating Offset in Phase-Shifted Fiber Grating Coupler for All-Optical Switching Application

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

光学学报 2003年第S1期23卷 231-232页

作者： Hirohisa Yokota yutaka Sasaki Department of Systems Engineering Faculty of Engineering Ibaraki University 4-12-1 Nakanarusawa Hitachi Ibaraki 316-8511 JapanDepartment of Systems Engineering Faculty of Engineering Ibaraki University 4-12-1 Nakanarusawa Hitachi Ibaraki 316-8511 Japan

We theoretically investigated laser trimming to adjust grating offset in phase-shifted fiber grating coupler (FGC) for all-optical switching application. It was clarified that the trimming made the extinction ratio hi... 详细信息

关键词： for as et in Laser Trimming for Adjustment of Grating Offset in Phase-Shifted Fiber Grating Coupler for All-Optical Switching Application of

Sm-doped CsBr crystal as a new radio-photoluminescence (RPL) material

在线全文

学校读者我要写书评

暂无评论

Journal of Rare Earths 2016年第8期34卷 769-773页

作者： Go Okada yutaka Fujimoto Hironori Tanaka Safa Kasap Takayuki Yanagida Graduate School of Materials Science Nara Institute of Science and Technology (NAIST) 8916-5 Takayama Ikoma Nara 630-0192 Japan Department of Applied Chemistry Graduate School of Engineering Tohoku University 6-6-07 Aoba Aramaki Aoba-ku Sendai 980-8579 Japan Department of Electrical and Computer Engineering University of Saskatchewan 57 Campus Dr. Saskatoon SK S7N5A9 Canada

Radio-photoluminescence （RPL） is a phenomenon seen in luminescent materials in which the appearance of new photolu- minescence （PL） emission is induced by an incident ionizing radiation such as X-rays; and the signal is stable even after the irradia- tion and during the PL measurement. Since the induced PL intensity is proportional to the irradiation dose, the RPL can be used in ra- diation measurements. The distinct advantage of RPL over the conventional thermally- or photo-stimulated luminescence （abbrevi- ated as TSL or PSL） dosimeters is the stability of response signal. With an RPL detector, it allows us to readout the signal multiple time without signal fading. In this work, we discovered that CsBr：Sm showed an RPL phenomenon by X-ray irradiation, and we characterized this new material as an RPL detector. While the sample showed PL emissions mainly in the visible range, after an X-ray irradiation additional emissions could be observed in the red to near-infrared range around 650-850 nm and 900-1000 nm and longer. The RPL response was fairly stable overall, but very interestingly the 650-850 nm signal slightly increased while the 900-1000 nm decreased during PL readout. The dynamic range was confirmed over 1-104 mGy with linear response.

关键词： radio-photoluminescence RPL CsBr Sm dosimeter X-rays rare earths

Recent advances in ionic liquids-based hybrid processes for CO_(2) capture and utilization

在线全文

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2021年第1期33卷 281-295页

作者： Shaohan Lian Chunfeng Song Qingling Liu Erhong Duan Hongwei Ren yutaka Kitamura Tianjin Key Laboratory of Indoor Air Enuironmental Quality Control School of Enuironmental Science and EngineeringTianjin UniversityTianjin 300072China Pollution Prevention Biotechnology Laboratory of Hebei Province School of Environmental Science and EngineeringHebei University of Science and TechnologyshijizhuangHebei 050018China Graduate School of L.ife and Environmental Sciences University of Tsukuba1-1-1TennodaiTsukubalbaraki 305-8572Japan

CO_(2) capture and utilization(CCU)is an effective strategy to mitigate global ***,adsorption and membranes are methods used for CO_(2) separation and capture,and various catalytic pathways have also been developed for CO_(2) *** widely researched and used in industry,these processes are energy-intensive and this challenge needs to be *** realize further optimization,novel materials and processes are continuously being *** generation materials such as ionic liquids(ILs)have shown promising potential for cost-effective CO_(2) capture and *** study reviews the current status of ILs-based solvents,adsorbents,membranes,catalysts and their hybrid processes for CO_(2) capture and *** special properties of ILs are integrated into new materials through hybridization,which significantly improves the performance in the process of CCU.

关键词： CO_(2) Hybrid Ionic liquids Absorption Adsorption Membrane Catalysis

Effect of antioxidant activity of caffeic acid with cyclodextrins using ground mixture method

在线全文

学校读者我要写书评

暂无评论

Asian Journal of Pharmaceutical Sciences 2018年第1期13卷 24-33页

作者： Ryota Shiozawa yutaka Inoue Isamu Murata Ikuo Kanamoto Faculty of Pharmacy and Pharmaceutical Sciences Josai University

In the current study, we prepared a ground mixture(GM) of caffeic acid(CA) with α-cyclodextrin(αCD) and with β-cyclodextrin(βCD), and then comparatively assessed the physicochemical properties and antioxidant capacities of these GMs. Phase solubility diagrams indicated that both CA/αCD and CA/βCD formed a complex at a molar ratio of 1/1. In addition, stability constants suggested that CA was more stable inside the cavity of αCD than inside the cavity of βCD. Results of powder X-ray diffraction(PXRD) indicated that the characteristic diffraction peaks of CA and CD disappeared and a halo pattern was produced by the GMs of CA/αCD and CA/βCD(molar ratios = 1/1). Dissolution testing revealed that both GMs had a higher rate of dissolution than CA alone did. Based on the1 H-1 H NOESY NMR spectra for the GM of CA/αCD, the vinylene group of the CA molecule appeared to be included from the wider to the narrower rim of the αCD ring. Based on spectra for the GM of CA/βCD, the aromatic ring of the CA molecule appeared to be included from the wider to the narrower rim of the βCD ring. This suggests that the structures of the CA inclusion complexes differed between those involving αCD rings and those involving βCD rings. Results of a DPPH radical-scavenging activity test indicated that the GM of CA/αCD had a higher antioxidant capacity than that of the GM of CA/βCD. The differences in the antioxidant capacities of the GMs of CA/αCD and CA/βCD are presumably due to differences in stability constants and structures of the inclusion complexes.

关键词： Caffeic acid Cyclodextrins Inclusion Antioxidant activity Solubility Ground mixture

Effects of zincate treatment on adhesion of electroless Ni-P coating onto various aluminum alloys

在线全文

学校读者我要写书评

暂无评论

中国有色金属学会会刊：英文版 2009年第4期19卷 814-818页

作者： Makoto HINO Koji MURAKAMI yutaka MITO OKA Ken MURAOKA Teruto KANADANI Industrial Technology Research Institute of Okayama Prefecture Okayama University of Science

The effects of alloying elements on zincate treatment and adhesion of electroless Ni-P coating onto various aluminum alloy substrates were *** morphology of zinc deposits in the 1st zincate treatment and its adhesion were changed depending on the alloying *** zinc deposits in the 2nd zincate treatment became thinly uniform,and the adhesion between aluminum alloy substrate and Ni-P coating was improved irrespective of the alloying *** analysis revealed the existence of zinc on the surface of each aluminum alloy substrate after the pickling in 5% nitric *** zinc on the surface should be an important factor influencing the morphology of zinc deposit at the 2nd zincate treatment and its adhesion.

关键词：化学镀镍锌酸盐铝合金治疗合金涂层粘连合金元素表面形貌

Analysis of Motor Synergies Utilization for Optimal Movement Generation for a Human-like Robotic Arm

在线全文

学校读者我要写书评

暂无评论

International Journal of Automation and computing 2013年第6期10卷 515-524页

作者： Kin Chung Denny Fu yutaka Nakamura Tomoyuki Yamamoto Hiroshi Ishiguro Graduate School of Engineering Science Osaka University

Controlling human-like robots with musculoskeletal structure has been a challenging problem in engineering. In biological studies, motor synergy hypothesis has been proposed as a solution in order to control high degree-of-freedom and complex human body. In this paper, we focus on exploring the applicability of motor synergies in generating goal-directed movements by optimal control in a human-like robotic arm. We focus on three problems： 1） Can motor synergies facilitate the solving of optimal control problem？ 2） What properties should motor synergies have in order to achieve tasks？ 3） How should motor synergies be utilized better？ For the first problem we show that goal-directed movements can be achieved by utilizing motor synergies which have properties of achieving the goals. For the second problem, we testify motor synergies which have different properties and discover that energy efficiency is an important aspect in motor synergies which can also be utilized to achieve goal-directed movements. This discovery also implies that we can obtain motor synergies by other ways rather than from goal-directed optimal control signals. For the third problem, we show that the control complexity can be further reduced by utilizing a subset of motor synergies which are effective to achieve goals.

关键词： Motor synergies optimal control dimension reduction bio-inspired control biomimetics.

Human Perception of Group Synchronization Error in Remote Learning: Dependencies of Voice and Video Contents in One-Way Communication

在线全文

学校读者我要写书评

暂无评论

International Journal of Communications, Network and System Sciences 2022年第3期15卷 31-42页

作者： Hay Mar Mo Mo Lwin yutaka Ishibashi Khin Than Mya Faculty of Computer Systems and Technologies University of Computer Studies Yangon Yangon Myanmar Graduate School of Engineering Nagoya Institute of Technology Nagoya Japan

This paper examines dependencies of voice and video contents on human perception of group (or inter-destination) synchronization error in remote learning by Quality of Experience (QoE) assessment. In our assessment, we use two videos and three voices (two voices for one video and one voice for the other video). We also investigate influences of silence periods in the voices and temporal relations between the voices and videos (called the tightly-coupled and loosely-coupled contents here). The voices are spoken by a teacher according to the videos. Each subject as a student assesses the group synchronization quality by watching each lecture video and the corresponding explanation voice, and then the subject answers whether he/she perceives the group synchronization error or not. As a result, assessment results illustrate that silence periods mitigate the perception rate of the error, and we can also find that we can more easily perceive the error for tightly-coupled contents than loosely-coupled ones.

关键词： Remote Learning Voice Video Group Synchronization Error Human Perception QoE Assessment

Regulation of RNase E during the UV stress response in the cyanobacterium Synechocystis *** 6803

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

mLife 2023年第1期2卷 43-57页

作者： Satoru Watanabe Damir Stazic Jens Georg Shota Ohtake yutaka Sakamaki Megumi Numakura Munehiko Asayama Taku Chibazakura Annegret Wilde Claudia Steglich Wolfgang R.Hess Faculty of Biology Genetics and Experimental BioinformaticsUniversity of FreiburgFreiburgGermany Department of Bioscience Tokyo University of AgricultureSetagayakuTokyoJapan School of Agriculture Molecular GeneticsIbaraki UniversityIbarakiJapan Faculty of Biology Molecular GeneticsUniversity of FreiburgFreiburgGermany Nexxiot Prime Tower(Hardstrasse 201)ZurichSwitzerland.

Endoribonucleases govern the maturation and degradation of RNA and are indispensable in the posttranscriptional regulation of gene expression.A key endoribonuclease in Gram-negative bacteria is RNase *** ensure an appropriate supply of RNase E,some bacteria,such as Escherichia coli,feedback-regulate RNase E expression via the rne 5′-untranslated region(5′UTR)in ***,the mechanisms involved in the control of RNase E in other bacteria largely remain *** rely on solar light as an energy source for photosynthesis,despite the inherent ultraviolet(UV)*** this study,we first investigated globally the changes in gene expression in the cyanobacterium Synechocystis *** ^(6)803 after a brief exposure to *** the 407 responding genes 2 h after UV exposure was a prominent upregulation of rne mRNA ***,the enzymatic activity of RNase E rapidly increased as well,although the protein stability *** unique response was underpinned by the increased accumulation of full-length rne mRNA caused by the stabilization of its 5′UTR and suppression of premature transcriptional termination,but not by an increased transcription *** of RNA 3′ends and in vitro cleavage assays revealed that RNase E cleaves within a stretch of six consecutive uridine residues within the rne 5′UTR,indicating *** observations suggest that RNase E in cyanobacteria contributes to reshaping the transcriptome during the UV stress response and that its required activity level is secured at the RNA level despite the enhanced turnover of the protein.

关键词： cyanobacteria protein turnover ribonuclease stress response