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Patel, R.,Inamdar, A.I.,Hou, B.,Cha, S.,Ansari, A.T.,Gunjakar, J.L.,Im, H.,Kim, H. ELSEVIER 2017 CURRENT APPLIED PHYSICS Vol.17 No.4
<P>A nanofoam nickel cobalt layered double hydroxide (NiCo(OH)(2)) electrode film is fabricated on a stainless-steel substrate with the use of a simple one-step solvothermal process. The nanofoam NiCo(OH)(2) electrode exhibits a high specific capacitance of 2710.2 Fig at a current density.of 9.1 A/g, and a good capacity retention of similar to 70% after 2000 charge-discharge cycles at a high current density of 31.8 A/g. An energy density of 60.23 Wh/kg is obtained at a power density of 1.8 kW/kg. The excellent electrochemical energy storage performance of the NiCo(OH)(2) electrode is due to the synergetic effect of a significantly improved ionic diffusion and an effective charge transfer, which is linked to a well-dispersed interconnected nanofoam morphology and binder-free direct contact with the current collector. (C) 2017 Elsevier B.V. All rights reserved.</P>
A. I. Shtern 장전수학회 2016 Advanced Studies in Contemporary Mathematics Vol.26 No.2
In the paper “Semicontinuous envelopes, Riemann integral, and uniform distribution in C*-algebras” (Funct. Anal. Appl. 29 (4), 268– 275 (1995)(1996)), the author had constructed the Riemann integral with respect to a state on a separable unital C*-algebra A. In particular, the semicontinuous hulls of elements of the enveloping von Neumann algebra A of A were introduced and studied and, for a given state ! on A, a class of selfadjoint elements of the algebra A that are Riemann integrable with respect to the state ω were introduced. It was also proved that this class is the self-adjoint part of a C*-algebra, and relations to the uniform distribution of states of the C*-algebra A with respect to the state ω were indicated. In the present note, we supplement these results by a version of Lebesgue’s criterion for the Riemann integrability of self-adjoint elements of A.
Upper edge-to-vertex detour monophonic number of a graph
A. P. Santhakumaran,P. Titus,K. Ganesamoorthy 장전수학회 2016 Advanced Studies in Contemporary Mathematics Vol.26 No.2
For a connected graph G = (V,E) of order at least three, the monophonic distance dm(u, v) is the length of a longest u−v monophonic path in G. A u − v path of length dm(u, v) is called a u − v detour monophonic. For subsets A and B of V , the monophonic distance dm(A,B) is defined as dm(A,B) = min{dm(x, y) : x ∈ A, y ∈ B}. A u−v path of length dm(A, B) is called an A−B detour monophonic path joining the sets A,B ⊆ V, where u ∈ A and v ∈ B. A set S ⊆ E is called an edge-to-vertex detour monophonic set of G if every vertex of G is incident with an edge of S or lies on a detour monophonic path joining a pair of edges of S. The edge-to-vertex detour monophonic number dmev(G) of G is the minimum cardinality of its edge-to-vertex detour monophonic sets and any edge-to-vertex detour monophonic set of car- dinality dmev(G) is an edge-to-vertex detour monophonic basis of G. An edge-to-vertex detour monophonic set S in a connected graph G is called a minimal edge-to-vertex detour monophonic set of G if no proper subset of S is an edge-to-vertex detour monophonic set of G. The upper edge-to-vertex detour monophonic number dm+ ev(G) of G is the maxi- mum cardinality of a minimal edge-to-vertex detour monophonic set of G. We determine bounds for it and certain general properties of these concepts are studied. It is shown that for every pair a, b of integers with 2 ≤ a ≤ b, there exists a connected graph G with dmev(G) = a and dm+ ev(G) = b.
Second preduals of tridual von Neumann algebras are geometrically unique
A. I. Shtern 장전수학회 2008 Advanced Studies in Contemporary Mathematics Vol.17 No.1
The main result of the note claims that, if a von Neumann algebra Ais the third dual to some Banach space and thus, as is known, is the bidual of somevon Neumann algebra A, then the natural homomorphic projection of A onto theweakly closed two-sided ideal in A isomorphic to A (the kernel of this homomorphismcoincides with that of the canonical projection of A onto A dual to the canonicalembedding of the predual of A in the predual of A) is dened uniquely by A. Thus,the von Neumann algebra A, the image of the above projection, is not only uniquelydened (up to isomorphism) by its enveloping von Neumann algebra A but also theimage of the \canonical normal embedding" of A in A (onto the image of the aboveprojection) is uniquely dened, i.e., this weakly closed two-sided ideal in A isomorphicto A is uniquely dened geometrically. This enables us to rene some known resultson predual spaces of von Neumann algebras.
$n$-weak amenability and strong double limit property
A.R. Medghalchi,T. Yazdanpanah 대한수학회 2005 대한수학회보 Vol.42 No.2
Let {mathcal A} be a Banach algebra, we say that {mathcalA}has the strongly double limit property (SDLP) if for each boundednet (a_{alpha}) in {mathcal A} and each bounded net(a^*_{beta}) in {mathcal A}^*, lim_{alpha}lim_{beta}leftlangle a_{alpha} , a^*_{beta}rightrangle = lim_{beta} lim_{alpha} leftlangle a_{alpha}, a^*_{beta} rightrangle whenever both iterated limits exist. In this paperamong other results we show that if {mathcal A} has the SDLP and{mathcal A}^{**} is (n-2)-weakly amenable, then {mathcal A} isn-weakly amenable. In particular, it is shown that if {mathcalA}^{**} is weakly amenable and {mathcal A} has the SDLP, then ${\mathcal A}$ is weakly amenable
Nguyen, A.T.,Yu, T.,Kim, W.S. North-Holland Pub. Co 2017 Journal of crystal growth Vol.469 No.-
A Couette-Taylor crystallizer is developed to enhance the l-Lysine crystal size distribution and recovery in the case of continuous cooling crystallization. When using the proposed Couette-Taylor (CT) crystallizer, the size distribution and crystal product recovery were much narrower and higher, respectively, than those from a conventional stirred tank (ST) crystallizer. Here, the coefficient of the size distribution for the crystal product from the CT crystallizer was only 0.45, while it was 0.78 in the case of the conventional ST crystallizer at an agitation speed of 700rpm, mean residence time of 20min, and feed concentration of 900(g/L). Furthermore, when using the CT crystallizer, the crystal product recovery was remarkably enhanced up to 100%wt with a mean residence time of only 20min, while it required a mean residence time of at least 60min when using the conventional ST crystallizer. This result indicates that the CT crystallizer was much more effective than the conventional ST crystallizer in terms of controlling a narrower size distribution and achieving a 100%wt l-lysine crystal product recovery from continuous cooling crystallization. The advantage of the CT crystallizer over the conventional ST crystallizer was explained based on the higher energy dissipation of the Taylor vortex flow and larger surface area for heat transfer of the CT crystallizer. Here, the energy dissipation of the Taylor vortex flow in the CT crystallizer was 13.6 times higher than that of the random fluid motion in the conventional ST crystallizer, while the surface area per unit volume for heat transfer of the CT crystallizer was 8.0 times higher than that of the conventional ST crystallizer. As a result, the mixing condition and heat transfer of the CT crystallizer were much more effective than those of the conventional ST crystallizer for the cooling crystallization of l-lysine, thereby enhancing the l-lysine crystal size distribution and product recovery.
A 12-MHz CW RFQ for the AEBL Project
D. L. Schrage,P. N. Ostroumov,A. Barcikowski,D. Fallin,A. A. Kolomiets 한국물리학회 2008 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.52 No.3
The Advanced Exotic Beam Laboratory (AEBL) at the Argonne National Laboratory (ANL) will provide a research facility for studies of nuclear phenomena by using beams of short-lived isotopes for research on the nature of nucleonic matter and the origin of the elements, for tests of the Standard Model, for applications in medicine and industry, and for other applied physics research. The proposed design of the AEBL driver linac evolved from the Rare Isotope Accelerator (RIA) project. The AEBL will be a CW linac capable of accelerating uranium ions up to 200 MeV/u and protons to 580 MeV with 400 kW beam power. The AEBL facility also includes a post-accelerator which is designed for acceleration of radioactive ions with charge-to-mass ratios in the range from 1/238 to 1/6. Very low charge-state ions can be most eciently bunched and accelerated by using normally-conducting radio-frequency quadrupole (RFQ) for the rst few MV of the post accelerator. A two-meter long, 12-MHz CW RFQ was designed, built, and tested in the late 1990s as the rst section of a three-section RFQ [18]. This RFQ achieved inter-electrode voltages of 110 kV CW (the peak surface eld was 15 MV/m) and accelerated beams with A/q as large as 132 (132Xe). The AEBL requires a similar RFQ for the post-acceleration of singly-charged unstable nuclides. Our plan is to replace the vanes of this RFQ with a design that incorporates a stronger focusing and that will achieve a higher peak surface eld (16 MV/m) at 82.2-kV inter-vane voltage. The objectives of this project are 1. to conrm the possibility of a low injection energy of 0.4 keV/u which signicantly reduces the voltage required for a high-voltage deck; 2. to test the highest possible peak surface eld on the RFQ electrodes designed for the lowest frequency of 12 MHz compared to existing RFQs worldwide; 3. to provide a technical base for the design of a post-accelerator for the future Advanced Exotic Beam Facility. At the present time, the design is complete, and the fabrication of the 12 MHz RFQ is scheduled to commence in October 2007 with testing planned in 2008. The physics and engineering design of the RFQ is discussed. The Advanced Exotic Beam Laboratory (AEBL) at the Argonne National Laboratory (ANL) will provide a research facility for studies of nuclear phenomena by using beams of short-lived isotopes for research on the nature of nucleonic matter and the origin of the elements, for tests of the Standard Model, for applications in medicine and industry, and for other applied physics research. The proposed design of the AEBL driver linac evolved from the Rare Isotope Accelerator (RIA) project. The AEBL will be a CW linac capable of accelerating uranium ions up to 200 MeV/u and protons to 580 MeV with 400 kW beam power. The AEBL facility also includes a post-accelerator which is designed for acceleration of radioactive ions with charge-to-mass ratios in the range from 1/238 to 1/6. Very low charge-state ions can be most eciently bunched and accelerated by using normally-conducting radio-frequency quadrupole (RFQ) for the rst few MV of the post accelerator. A two-meter long, 12-MHz CW RFQ was designed, built, and tested in the late 1990s as the rst section of a three-section RFQ [18]. This RFQ achieved inter-electrode voltages of 110 kV CW (the peak surface eld was 15 MV/m) and accelerated beams with A/q as large as 132 (132Xe). The AEBL requires a similar RFQ for the post-acceleration of singly-charged unstable nuclides. Our plan is to replace the vanes of this RFQ with a design that incorporates a stronger focusing and that will achieve a higher peak surface eld (16 MV/m) at 82.2-kV inter-vane voltage. The objectives of this project are 1. to conrm the possibility of a low injection energy of 0.4 keV/u which signicantly reduces the voltage required for a high-voltage deck; 2. to test the highest possible peak surface eld on the RFQ electrodes designed for the lowest frequency of 12 MHz compared to existing RFQs worldwide; 3. to provide a technical base for the design of a post-accelerator for the future Advanced Exotic Beam Facility. At the present time, the design is complete, and the fabrication of the 12 MHz RFQ is scheduled to commence in October 2007 with testing planned in 2008. The physics and engineering design of the RFQ is discussed.
Vilian, A.T. Ezhil,Giribabu, Krishnan,Choe, Sang Rak,Muruganantham, Rethinasabapathy,Lee, Hoomin,Roh, Changhyun,Huh, Yun Suk,Han, Young-Kyu Elsevier Sequoia 2017 Sensors and actuators. B Chemical Vol.251 No.-
<P><B>Abstract</B></P> <P>In the present study, we employ a straightforward, benign strategy to prepare thiol-functionalized reduced graphene oxide (S-RGO) using methionine as the sulphur source and reducing agent. The immobilization of horseradish peroxidase (HRP) over the AuNPs/S-RGO was developed by incorporating AuNPs on the S-RGO surface. The fabricated HRP/AuNPs/S-RGO electrode exhibits a remarkable decrease in the overpotential and a significantly increased oxidation peak current of bisphenol A (BPA) compared with the bare glassy carbon electrode (GCE) and AuNPs/S-RGO electrode. The biosensor shows an excellent amperometric analytical performance with a low detection limit of 2.6×10<SUP>−12</SUP> M and a linear range from 2.0×10<SUP>−11</SUP> to 1.18×10<SUP>−9</SUP> M, with the response time <2s for BPA. From the results, the apparent Michaelis-Menten constant was calculated as 8.14nM. The HRP/AuNPs/S-RGO biosensor exhibited faster response, adequate storage stability, inexpensive, simple fabrication with disposability, satisfactory reproducibility and repeatability, and outstanding selectivity. Finally, the constructed biosensor was utilized successfully for detecting BPA in tomato juice and milk samples with acceptable results.</P> <P><B>Highlights</B></P> <P> <UL> <LI> HRP/AuNPs/S-RGO biocomposite has been prepared to determine bisphenol A. </LI> <LI> The AuNPs/S-RGO is a promising platform for HRP immobilization. </LI> <LI> The biosensor exhibits excellent stability, reproducibility and high selectivity. </LI> <LI> It exhibits LOD of 2.6×10<SUP>−12</SUP> in a wide linear range from 2.0×10<SUP>−11</SUP> to 1.18×10<SUP>−9</SUP> M. </LI> <LI> It detects bisphenol A in real samples such as tomato juice and milk. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
초등학교 축구선수의 성격타입(A/B), 정신력과 운동몰입의 구조적 관계
김인수(Kim In-Soo),최정아(Choi Jeang-a) 한국체육교육학회 2016 한국체육교육학회지 Vol.20 No.4
이 연구는 초등학교 축구선수의 A/B 타입 성격과 정신력, 운동몰입 간에 어떤 인과관계가 있는지를 밝힘으로써 초등학교 축구선수의 경기력 향상에 도움을 주고자 수행되었다. 이러한 연구목적을 달성하기 위해 G광역시와 J도에 소재한 초등학교 축구선수로 등록된 236명과 중학교 축구 선수 110명을 대상으로 A/B 타입 성격척도, 정신력 척도, 운동몰입척도를 사용하여 집단 간 t-test 및 공변량 구조분석을 실시하였다. 변인 간의 구조적 관계분석을 위해 A/B 타입 성격을 외생변인으로 하고, 정신력과 운동몰입을 내생변인으로 한 구조모델을 설정하고 검증하였으며 그 결과 첫째, A/B 타입 성격 간 비교에서A 타입 성격소유자가 B타입 성격소유자에 비해 정신력과 운동몰입이 높은 것으로 나타났다. 입상경력유무집단 간 비교에서 입상경력이 있는 선수는 그렇지 못한 선수에 비해 A 타입 성격, 정신력, 운동몰입이 높았다. 초등학교 축구선수와 중학교 축구선수 간 비교에서는 성격타입, 정신력, 운동몰입에 차이가 없었다. 둘째, 변인 간 상관분석을 실기한 결과 A/B 타입 성격, 정신력, 운동몰입 간에는 서로 유의한(p<.01) 상관이 있었다. 셋째, 변인 간 구조관계를 분석한 결과 완전매개모형이 적합한 것으로 나타났고, A/B 타입 성격을 외생변인으로 하고 정신력과 운동몰입을 내생변인으로 한 구조모형은 이론모델로서 양호한 것으로 나타났으며(χ2=20.13, df=7, Q=2.88, RMR=.01, GFI=.97, TLI=.94, NFI=.96, CFI=.97, RMSEA=.08) 세부 구조경로에서는 A/B타입 성격 → 정신력, 정신력 → 운동몰입의 경로가 유의한(p<.01) 것으로 나타났다. 이를 요약하면 초등학교 축구선수의 경우 A타입 성격 성향이 강할수록 정신력과 운동몰입 수준이 높으며 지방대회 3위 이상의 입상경력을 가진 선수는 그렇지 않는 선수에 비해 A 타입 성격 성향이 강하고, 정신력과 운동몰입 수준이 높다. 또한, A/B 성격 성향은 정신력과 밀접한 관련이 있으며 정신력은 운동몰입과 인과관계가 있는 것으로 나타나 초등학교 축구선수의 운동몰입 수준을 증가시키기 위해서는 정신력의 강화가 필요함을 제시해 주고 있다. Purpose: The Purpose of this study was to define structural relation among A/B type behavior pattern, mental toughness, and sport commitment of elementary school soccer players. Methods: This study set up a structural relation model which was composed of exogenous variables as A/B type behavior pattern and endogenous variables were mental toughness, and sport commitment of soccer players. The participants were 236 elementary school and 110 middle school soccer players who lived in G city and J province. This study used A/B type behavior pattern scale, Mental toughness scale and commitment scale. Results: In analysis of t-test, A type players show higher mental toughness and sport commitment than those of B type. The players who had experienced more 3rd place in province soccer competition show higher A type behavior pattern, mental toughness, and behavioral commitment than those of the others. There were no differences between elementary school players and middle school players in A/B type behavior pattern, mental toughness and sport commitment. In analysis of correlation, there were significant relations between A/B type behavior pattern, mental toughness and sport commitment. In analysis structure equation, this model can be used as theoretical model because general indexes were proved(χ2=20.13, df=7, Q=2.88, RMR=.01, GFI=.97, TLI=.94, NFI=.96, CFI=.97, RMSEA=.08). In analysis details index, there were significant paths of A/B type behavior pattern → mental toughness, mental toughness → sport commitment. Conclusion: In this study define there are causal relationships among A/B type behavior pattern, mental toughness and sport commitment. To approve sport commitment of elementary school soccer players, players kept up A type behavior pattern and make strong mental toughness.