http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Collision Avoidance of the Aircraft in the 3 Dimensional Space
Yoshihiro Yamaguchi,Hiroyuki Takano,Takeshi Yamasaki,Isao Yamaguchi 제어로봇시스템학회 2011 제어로봇시스템학회 국제학술대회 논문집 Vol.2011 No.10
Recently, domestic and overseas LCC’s (Low Cost Carriers) increase air-traffic in Japan. However, we have narrow domain and many airports. Large training areas of USAF or JSDF also exist in the airspace. In the present circumstances, the flight safety is kept by separating airways from training areas. In the near future, increasing number of flights will make severe situation. In this paper, we try to optimize the evasive courses of aircraft in the narrow airspace. We formulate collision avoidance as a nonlinear programming problem and analyzed numerically. The optimal solution we obtained show courses in narrower spaces than ordinary ones. The assumption of limited airspaces is useful in severe situation like bad weather. Thus, this study might be a good proposal to decide direction for collision avoidance.
3-D Analysis of Core Material Effects of Motors on Torque and Iron Loss Characteristics
Kawase Yoshihiro,Yamaguchi Tadashi,Okouchi Toshinori,Nord Goran,Kanno Koki The Korean Institute of Electrical Engineers 2005 KIEE International Transactions on Electrical Mach Vol.b5 No.3
In this paper, a surface permanent magnet motor made of the Soft Magnetic Composites (SMC) is analysed using the 3-D finite element method. By comparing with the motor made of the silicon steel sheets, the usefulness of the SMC for the eddy current loss is clarified quantitatively.
Application of Driving Simulator to Dilemma Zone Experiments
Toshihiko Oda,Yoshihiro Suda,Shinji Tanaka,Daisuke Yamaguchi 한국자동차공학회 2008 한국자동차공학회 Symposium Vol.2008 No.9
At the onset of the yellow interval, a driver approaching a signalized intersection has to decide to either stop if he has enough distance or proceed to cross the stop line. A dilemma zone refers to a highly hazardous situation where an abrupt braking may cause a rear-end collision if a driver stops and an angle collision may occur if he crosses the intersection. To prevent drivers from being caught in the dilemma zone, a traffic signal control method called Dilemma-Free was introduced. In this method, there is an important issue about the model of driver/vehicle behaviors involving the reaction time of a driver to take braking actions and the deceleration rate of a vehicle. This paper describes a study of stopping behavior of drivers in the dilemma zones. With the use of a Driving Simulator, experiments were conducted to extract driver model parameters under dilemma zone situations. Results show that the reaction time depends heavily on various details of traffic situations. It is confirmed that the driver’s decision in a dilemma zone is influenced by the vehicle’s distance to the stop line, the approach speed and the indication of pedestrian signal.
Translation-dependent mRNA cleavage by YhaV in <i>Escherichia coli</i>
Choi, Wonho,Yamaguchi, Yoshihiro,Lee, Jae-Woo,Jang, Kyung-Min,Inouye, Masayori,Kim, Sung-Gun,Yoon, Min-Ho,Park, Jung-Ho North-Holland Pub 2017 FEBS letters Vol. No.
<P>Many bacteria have toxin-antitoxin (TA) systems, where toxin gene expression inhibits their own cell growth. mRNA is one of the well-known targets of the toxins in the type II toxin-antitoxin systems. Here, we examined the ribosome dependency of the endoribonuclease activity of YhaV, one of the toxins in type II TA systems, on mRNA in vitro and in vivo. A polysome profiling assay revealed that YhaV is bound to the 70S ribosomes and 50S ribosomal subunits. Moreover, we found that while YhaV cleaves ompF and lpp mRNAs in a translation-dependent manner, they did not cleave the 5' untranslated region in primer extension experiments. From these results, we conclude that YhaV is a ribosome-dependent toxin that cleaves mRNA in a translation-dependent manner.</P>
Naotaka Ogasawara,Mari Mizuno,Ryuta Masui,Yoshihiro Kondo,Yoshiharu Yamaguchi,Kenichiro Yanamoto,Hisatsugu Noda,Noriko Okaniwa,Makoto Sasaki,Kunio Kasugai 대한소화기내시경학회 2014 Clinical Endoscopy Vol.47 No.2
Background/Aims: Despite improvements in endoscopic hemostasis and pharmacological therapies, upper gastrointestinal (UGI) ulcersrepeatedly bleed in 10% to 20% of patients, and those without early endoscopic reintervention or definitive surgery might be at ahigh risk for mortality. This study aimed to identify the risk factors for intractability to initial endoscopic hemostasis. Methods: We analyzed intractability among 428 patients who underwent emergency endoscopy for bleeding UGI ulcers within 24hours of arrival at the hospital. Results: Durable hemostasis was achieved in 354 patients by using initial endoscopic procedures. Sixty-nine patients with Forrest typesIa, Ib, IIa, and IIb at the second-look endoscopy were considered intractable to the initial endoscopic hemostasis. Multivariate analysisindicated that age ≥70 years (odds ratio [OR], 2.06; 95% confidence interval [CI], 1.07 to 4.03), shock on admission (OR, 5.26; 95% CI,2.43 to 11.6), hemoglobin <8.0 mg/dL (OR, 2.80; 95% CI, 1.39 to 5.91), serum albumin <3.3 g/dL (OR, 2.23; 95% CI, 1.07 to 4.89), exposedvessels with a diameter of ≥2 mm on the bottom of ulcers (OR, 4.38; 95% CI, 1.25 to 7.01), and Forrest type Ia and Ib (OR, 2.21;95% CI, 1.33 to 3.00) predicted intractable endoscopic hemostasis. Conclusions: Various factors contribute to intractable endoscopic hemostasis. Careful observation after endoscopic hemostasis is importantfor patients at a high risk for incomplete hemostasis.
ACA‐specific RNA sequence recognition is acquired via the loop 2 region of MazF mRNA interferase
Park, Jung‐,Ho,Yoshizumi, Satoshi,Yamaguchi, Yoshihiro,Wu, Kuen‐,Phon,Inouye, Masayori Wiley Subscription Services, Inc., A Wiley Company 2013 Proteins Vol.81 No.5
<P><B>Abstract</B></P><P>MazF is an mRNA interferase that cleaves mRNAs at a specific RNA sequence. MazF from <I>E</I>. <I>coli</I> (MazF‐ec) cleaves RNA at A and CA. To date, a large number of MazF homologs that cleave RNA at specific three‐ to seven‐base sequences have been identified from bacteria to archaea. MazF‐ec forms a dimer, in which the interface between the two subunits is known to be the RNA substrate‐binding site. Here, we investigated the role of the two loops in MazF‐ec, which are closely associated with the interface of the MazF‐ec dimer. We examined whether exchanging the loop regions of MazF‐ec with those from other MazF homologs, such as MazF from <I>Myxococcus xanthus</I> (MazF‐mx) and MazF from <I>Mycobacterium tuberculosis</I> (MazF‐mt3), affects RNA cleavage specificity. We found that exchanging loop 2 of MazF‐ec with loop 2 regions from either MazF‐mx or MazF‐mt3 created a new cleavage sequence at (A/U)(A/U)AA and C in addition to the original cleavage site, A and CA, whereas exchanging loop 1 did not alter cleavage specificity. Intriguingly, exchange of loop 2 with 8 or 12 consecutive Gly residues also resulted in a new RNA cleavage site at (A/U)(A/U)AA and C. The present study suggests a method for expanding the RNA cleavage repertoire of mRNA interferases, which is crucial for potential use in the regulation of specific gene expression and for biotechnological applications. Proteins 2013. © 2012 Wiley Periodicals, Inc.</P>