293 research outputs found
A New Species of Memecylon (Melastomataceae) from Taiwan
No full textMemecylon pendulum Chih C. Wang, Y. H. Tseng, Y. T. Chen & Kun C. Chang, a new species of Melastomataceae from Taiwan, is described and illustrated. This new species is allied to M. lanceolatum. Blanco but is clearly distinguished by its pendulous branchlets, smaller leaves to 7 ern long, shallowly 4-lobed calyx, obtuse or rounded apices of flower buds, and yellowish green fruit at maturity
Overcoming of Being Asian? Temporality and Spatiality in Post-War Japan's Thoughts on Modernity
No full text戰前日本思想界從時間性的近代，退向空間性的亞洲，結果形成了獨佔亞洲的軍國主義。戰後反省起來，同時有左派對侵略的懺悔，也有右派回歸原理性的近代精神追求；前者突破軍國主義的亞洲空間，把近代性的動能重新讀進中國歷史脈絡，恢復近代概念的時間性質，而後者則反省軍國主義造成的時間斷裂，試圖恢復具有已經加上了近代性的古層文化，促成更進一步的近代精神。在竹內好看來，左右兩派都不能擺脫西歐啟蒙現代性的束縛，進而以火中取栗的態度回到亞洲概念，提倡去實體化的亞洲方法，以同時避免實體化亞洲所曾帶來的軍國主義，及一味移植西歐近代性所產生的奴性。針對竹內好，溝口雄三透過各自歷史基體的演化，將時間性帶回，用各個歷史基體自己的特殊時間性來完成特殊的空間，既不讓每個特殊的空間內涵固定，又不讓任一特殊空間擴張。回應溝口的各個亞洲思想家，則分別根據自身的位置敘說亞洲。他們?了抗拒現代性中的西方霸權而回歸亞洲，並仰賴多元化的與去實體的論述，超克亞洲的帝國記憶。An obsession with modernity plagued Japan's modern thinkers as modernity seemed the key to Japan's inferiority to the West. One solution was to return to an Asia that enabled Japan to overcome modernity's alien features. However, this stress on Asia practically led to imperialist expansion. As a remedy, Maruyama Masao decided to bring modernity back into Japan's pre-modern history, while Takeuchi Yoshimi relied on an Asia that was a process rather than an entity. Koyasu Nobukni echoes Takeuchi with a postmodern narrative on East Asia that denies any claim to fundamentalism. In contrast, Mizoguchi Yuzo shuns Asia by linking each national modernity to the universal world without anything in between. Mizoguchi ironically inspired Baik Youngseo and Chen Kwang-hsing to resort to Asia again. Both cherish peripheral, sub-national narratives. Together, they are united in the quest for a deconstructed Asia that can overcome modernity's Western features
Development and characterization of an anti-Caveolin-1 peptide antibody for diagnosing human breast and colon cancer
No full text
A Hybrid Genetic Algorithm for the Flow-Shop Scheduling Problem
No full textThe flow-shop scheduling problem with the makespan criterion is an important production scheduling problem. Although this problem has a simple formulation, it is NP-hard. Therefore many heuristic and metaheuristic methods had been proposed to solve this problem. In this paper, a hybrid genetic algorithm is presented for the flow-shop scheduling problem. In our method, a modified version of NEH with random re-start is used to generate the initial population. Also, a new orthogonal array crossover is devised as the crossover operator of the genetic algorithm. The tabu search is hybridized with the genetic algorithm and acts as the local search method. The proposed algorithm had been tested on two benchmarks. The results are compared with those of other methods that had also been tested on these benchmarks. The comparison shows that our method outperforms other methods on these benchmarks
Spin Caloritronic Phenomena Driven by Spin-orbit Coupling
No full textIn this thesis, we report several effects in spintronics and spin caloritronics related to relativistic spin-orbit coupling. In Chapter 2, we discuss the relativistic spin caloritronicHall effects in terms of a semiclassical theory for anomalous thermoelectric effects in ferromagnetic metals due to spin-orbit scattering at impurities, including the anomalous Nernst and Ettingshausen effect, the planar thermalHall effects, and thermolectric anisotropic magnetoresistance. The linear response relations between the currents and driving forces are derived for out-of-plane and in-plane magnetizations, respectively. In the out-of-plane configuration, there are anomalous thermoelectric Hall effects linear to the spin-orbit constant, while the thermoelectric anisotropic magnetoresistance and the planar Hall effect in the in-plane configuration are of second order in the spin-orbit coupling. The extrinsic theory systemizes the competing effects/mechanisms from a microscopic point of view and identifies the parameters needed to describe experiments. We developed a diffusion theory in Chapter 3 for the spin Hall magnetoresistance (SMR) in multilayers made from an insulating magnet F such as yttriumiron garnet (YIG), and a normal metal N with spin-orbit interactions, such as platinum (Pt). In an N|F bilayer system, the SMR requires spin-flip in N and spin-transfer at the N|F interface. Our results explain the SMR both qualitatively and quantitatively with transport parameters that are consistent with other experiments. The degrees of spin accumulation in N that can be controlled by the magnetization direction is found to be very significant. In the presence of an imaginary part of the spin-mixing conductance Gi we predicted an AHE-like signal (SHAHE), which has been observed experimentally and can be explained with values of Gi that agree with first principles calculations. We furthermore analyzed F|N|F spin valves for parallel and perpendicular magnetization configurations. The SMR torques under applied currents in N are expected to lead to magnetization dynamics of N|F and F|N|F structures. In Chapter 4,we generalized the SMR theory in Chapter 3 to a thin-film made of a metallic ferromagnet and take into account the out-of-plane spin currents generated by the spinHall effect, which were disregarded in Chapter 2. We predict a new contribution to the anisotropic magnetoresistance by the simultaneous action of the anomalous Hall effect and its inverse. By diffusion theory, we compare this contribution with the conventional anisotropic magnetoresistance, demonstrating that they can be distinguished experimentally by studying its dependence on the film thickness. The extra contribution to the magnetoresistance has a magnetization dependence different from that of the conventional AMR. While the conventional AMR is usually positive, the new contribution is always negative. In order to analyze the effect of interface and boundary roughness that was disregarded in Chapter 3, we reports in Chapter 5 a Boltzmann study to quantify how the surface/interface scattering affects the spin Hall physics. In a bilayer system made of N and FI, we observe an AHE-like transverse voltage induced by the spin dependent scattering at the FI|N interface, which is competing with the imaginary SMR predicted in Chapter 3. We further show that the spin diffusion equation on which the SMR in Chapter 3 is based, has to be corrected by the surface/interface roughness in the limit of thin-films. Our model provides an approach to analyze the role of roughness in recent measurements on layered systems. Even though the theories developed in Chapters 3–5 are not directly related to spin caloritronics, they can be easily generalized for their thermoelectric analogues by the formulation spelt out in Chapter 2, and can be useful for prospective research in spintronics and spin caloritronics.Quantum NanoscienceApplied Science
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