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排序方式: 共有166条查询结果,搜索用时 78 毫秒
1.
Takahiro Moriyama Daiki Mizukami Dr. Makoto Yoritate Dr. Kazuteru Usui Dr. Daisuke Takahashi Dr. Eisuke Ota Prof. Dr. Mikiko Sodeoka Prof. Dr. Tadashi Ueda Prof. Dr. Satoru Karasawa Prof. Dr. Go Hirai 《Chemistry (Weinheim an der Bergstrasse, Germany)》2022,28(11):e202103925
Minimalist photo-reactive probes, which consist of a photo-reactive group and a tag for detection of target proteins, are useful tools in chemical biology. Although several diazirine-based and aryl azide-based minimalist probes are available, no keto-based minimalist probe has yet been reported. Here we describe minimalist probes based on a 2-thienyl-substituted α-ketoamide bearing an alkyne group on the thiophene ring. The 3-alkyne probe showed the highest photo-affinity labeling efficiency. 相似文献
2.
Koji YamamotoHiroki Sugiura Ryo AmemiyaHaruo Aikawa Zengjian AnMasahiko Yamaguchi Masashi Mizukami Kazue Kurihara 《Tetrahedron》2011,67(33):5972-5978
Optically active ethynylhelicene pentamers and hexamers linked by disulfide bonds were synthesized. They formed self-assembled monolayers (SAMs) with double helix structure on gold surfaces, which were analyzed by infrared reflection-absorption spectroscopy (IR-RAS), quartz crystal microbalance (QCM), surface plasmon resonance (SPR), and circular dichroism (CD). Double helix SAMs could be formed on gold surfaces either from double helices or random coils in solution. The double helices on the surface were more stable than in solution. This result suggested the presence of strong intercomplex interactions between double helix complexes on the surface. 相似文献
3.
Denis Mashkovtsev Wataru Mizukami Jacek Korchowiec Anna Stachowicz-Kuśnierz Yuriko Aoki 《Journal of computational chemistry》2020,41(25):2203-2212
The elongation method with intermediate mechanical and electrostatic embedding (ELG-IMEE) is proposed. The electrostatic embedding uses atomic charges generated by a charge sensitivity analysis (CSA) method and parameterized for three different population analyses, namely, the Merz–Singh–Kollman scheme, the charge model 5, and the atomic polar tensor. The obtained CSA models were tested on two model systems. Test calculations show that the electrostatic embedding provides several times of decrease in the difference of energies of testing and reference calculations in comparison with the conventional elongation approach (ELG). The mechanical embedding is implemented in a combination of the conventional elongation method and the ONIOM approach. Moreover, it was demonstrated that the geometry optimization with the ELG-IMEE reduces the errors in the optimized structures by about one order in root-mean-square deviation, when compared to ELG. 相似文献
4.
It is a well-known fact that in some economic environments, non-bossiness and monotonicity are interrelated. In this paper, we have presented a new domain-richness condition called weak monotonic closedness, on which non-bossiness in conjunction with individual monotonicity is equivalent to monotonicity. Moreover, by applying our main result to several types of economies, we have obtained characterizations in terms of non-bossiness. 相似文献
5.
6.
Summary A multiple analysis method for the Dumas nitrogen determination has been described. The furnace is provided with eight combustion tubes arranged in a circle around the axis of the furnace. An improved nozzle-type nitrometer, without ground joints, has been designed. The multiple determinations are simultaneously carried out as in usual method, permitting thirty two analyses in a 7-hour working day. The standard deviation-error of estimate from 88 analyses in routine work is ±0.12% N.
Zusammenfassung Ein Verfahren zur gleichzeitigen Durchführung mehrerer Stickstoffbestimmungen nachDumas wurde beschrieben. Der Verbrennungsofen kann acht Verbrennungsrohre in gleichmäßiger Entfernung von seiner Längsachse aufnehmen. Ein verbessertes Düsenazotometer ohne Schliffverbindungen wurde konstruiert. Die Analysen werden gleichzeitig in der üblichen Art durchgeführt, so daß im 7stündigen Arbeitstag 32 Bestimmungen möglich sind. Die mittlere Abweichung von 88 Analysen im Routinebetrieb betrug ± 0,12% N.
Résumé On a décrit une méthode d'analyse multiple pour le dosage de l'azote selonDumas. Le four est muni de huit tubes á combustion disposés suivant un cercle autour de l'axe du four. On a construit un nitromètre perfectionné de type à étranglement, sans joints rodés. On effectue simultanément les dosages multiples comme dans la méthode habituelle, ce qui permet de réaliser trente deux analyses en une journée de travail de 7 heures. L'écart type calculé à partir de 88 analyses dans un travail en série est de ±0,12% N.相似文献
7.
Hiroyuki Ishibashi Iwao Takamuro Yo-Ichi Mizukami Maki Irie Masazumi Ikeda 《合成通讯》2013,43(3-4):443-452
Friedel-Crafts acylation of arenes with methylthio- (1) or phenylthio-acetyl chloride (2) provides ready access to α-methylthio- or α-phenylthio-substituted acetophenones. The acyl chlorides 1 and 2 reacted also with organoaluminum reagents to give α-sulfenylated alkanones. 相似文献
8.
9.
Summary In the present work we show the analysis of an approximate solution for the coupled kinetic differential equations of a defect
involving processes of untrapping, retrapping and recombination annihilation, using the Poincaré-Dulac theorem.
The authors of this paper have agreed to not receive the proofs for correction. 相似文献
10.
H. S. Wu R. A. Willgoss K. Mizukami 《Journal of Optimization Theory and Applications》1994,82(2):361-378
In this paper, a new and simple approach whereby we derive several sufficient conditions on robust stabilizability for a class of uncertain dynamical systems with time delay is presented. Some analytical methods and the Bellman-Gronwall inequality are employed to investigate these sufficient conditions. The notable features of the results obtained are their simplicity in testing the stability of uncertain dynamical systems with time delay and their clarity in giving insight into system analysis. Finally, several numerical examples are given to demonstrate the utilization of the results.The authors would like to acknowledge the many helpful comments provided by the reviewer. Particularly, in the light of these comments, the proof of Theorem 3.1 has been considerably shortened. 相似文献