Airfoil Design for Morphing Wing Using Robust Multiobjective Optimization

26th International Conference on Adapdive Structures and Technologies. 14-16 October 2015, Kobe, Japan.conference pape

Salient Object Detection With Importance Degree

In this article, we introduce salient object detection with importance degree (SOD-ID), which is a generalized technique for salient object detection (SOD), and propose an SOD-ID method. We define SOD-ID as a technique that detects salient objects and estimates their importance degree values. Hence, it is more effective for some image applications than SOD, which is shown via examples. The definition, evaluation procedure, and data collection for SOD-ID are introduced and discussed, and we propose its evaluation metric and data preparation, whose validity is discussed with the simulation results. Moreover, we propose an SOD-ID method, which consists of three technical blocks: instance segmentation, saliency detection, and importance degree estimation. The saliency detection block is proposed based on a convolutional neural network using the results of the instance segmentation block. The importance degree estimation block is achieved using the results of the other blocks. The proposed method accurately suppresses inaccurate saliencies and estimates the importance degree for multi-object images. In the simulations, the proposed method outperformed state-of-the-art methods with respect to the F-measure for SOD; and Spearman\u27s and Kendall rank correlation coefficients, and the proposed metric for SOD-ID

Successful combination chemotherapy with irinotecan hydrochloride and cisplatin for primary gastric small cell carcinoma: report of a case

Primary gastric small cell carcinoma is a rare and aggressive malignant disease with a poor prognosis that was first reported in 1976 by Matsusaka et al. The incidence is very low and the clinicopathological features are similar to those of small cell lung carcinoma. We herein report a case of successful treatment by combination chemotherapy consisting of irinotecan hydrochloride and cisplatin for primary gastric small cell carcinoma. The patient was a 71-year-old male who was admitted to a local hospital with anemia. Gastrointestinal endoscopy revealed the presence of advanced gastric carcinoma at the upper region of the stomach. The patient underwent surgery, and the pathological diagnosis was small cell carcinoma due to the presence of the typical features of small round cells with scant cytoplasm that were positive for synaptophysin and chromogranin A in the resected specimen. The patient underwent subsequent combination chemotherapy, which provided him with over 1 year of survival and a good quality of life. We also present a review of the literature regarding chemotherapy for primary gastric small cell carcinoma

Contribution of electronic structure to the large thermoelectric power in layered cobalt oxides

With a strong help of high-resolution photoemission spectroscopy we demonstrate in this paper that the large thermoelectric power observed in the layered cobalt oxides, such as Ca_3Co_4O_9, Na_0.6CoO_2, and Bi_2Sr_2Co_2O_9, can be well accounted for with the Boltzmann-type metallic electrical conduction. An intense peak with 1.5–2 eV in width was observed in the photoemission spectra with its center at 1.0 eV below the Fermi level E_F in these compounds. The density of states at E_F is finite but negligibly small at room temperature, because E_F is located near the high-energy edge of this narrow band. We calculated thermoelectric power S using the Boltzmann transport equation with the electronic structure near E_F determined by the photoemission measurement. The calculated S shows fairly good consistency with the measured value both in its magnitude and the temperature dependence.journal articl

Chiral Liquid Crystalline Electronic Systems

Liquid crystals bearing extended π-conjugated units function as organic semiconductors and liquid crystalline semiconductors have been studied for their applications in light-emitting diodes, field-effect transistors, and solar cells. However, studies on electronic functionalities in chiral liquid crystal phases have been limited so far. Electronic charge carrier transport has been confirmed in chiral nematic and chiral smectic C phases. In the chiral nematic phase, consisting of molecules bearing extended π-conjugated units, circularly polarized photoluminescence has been observed within the wavelength range of reflection band. Recently, circularly polarized electroluminescence has been confirmed from devices based on active layers of chiral conjugated polymers with twisted structures induced by the molecular chirality. The chiral smectic C phase of oligothiophene derivatives is ferroelectric and indicates a bulk photovoltaic effect, which is driven by spontaneous polarization. This bulk photovoltaic effect has also been observed in achiral polar liquid crystal phases in which extended π-conjugated units are properly assembled. In this manuscript, optical and electronic functions of these chiral π-conjugated liquid crystalline semiconductors are reviewed

High open-circuit voltage under the bulk photovoltaic effect for the chiral smectic crystal phase of a double chiral ferroelectric liquid crystal doped with a fullerene derivative

A bulk photovoltaic effect was studied in a chiral smectic crystal phase of a bisfluorophenylterthiophene derivative bearing two lactate moieties doped with a fullerene derivative.</jats:p

Solution-processable electronic and redox-active liquid crystals based on the design of side chains

Abstract For the development of solution-processable functional materials, it is significant to increase the solubilities of the materials for organic solvents, retaining ordered structures of functional π-conjugated units during an evaporation process of solvents. For this purpose, not only a design of π-conjugated functional units but also a design of side chains is indispensable. In addition to alkyl side chains utilized for liquid crystals and conjugated polymers, oligosiloxane, oligoethylene oxide, perfluoroalkyl side chains are discussed in this review. Oligosiloxane side chains remarkably increase the solubilities of π-conjugated liquid crystals and conjugated polymers while the side chains promote self-organization of π-conjugated units to enhance their functions. In the thin films of the liquid crystals and conjugated polymers bearing cycloterasiloxane rings, liquid crystalline nanosegregated structures can be immobilized by an exposure to acid vapors. Oligoethylene oxide chains also promote nanosegregation and coordinate with ionic species. This property provides liquid crystals with electrochemical functions. Perfluoroalkyl side chains reinforce nanosegregated structures to enhance device performances. The electroluminescence devices using π-conjugated liquid crystals and polymers can emit linearly polarized light. Field-effect transistors comprising liquid crystalline active layers provide flexible devices with high performance. Solar cells based on liquid crystalline nanosegregated structures have a potential for high performance devices, due to high carrier mobility in the liquid crystal phases. The π-conjugated liquid crystals bearing oligoethylene oxide chains and ionic moieties form thin films in which electrons and ions are conducted separately, resulting in a new kind of electrochemical devices.</jats:p

Anisotropic electrical conductivity of n-doped thin films of polymerizable liquid-crystalline perylene bisimide bearing a triethylene oxide chain and cyclotetrasiloxane rings

A polymerizable liquid-crystalline perylene tetracarboxylic bisimide (PTCBI) derivative bearing a triethylene oxide chain and cyclotetrasiloxane rings was synthesized.</p