다중혈관 관상동맥 환자에서 y-문합을 이용하여 양쪽 내흉동맥만을 사용한 우회술의 조기 성적

[신간의 별자리x] 우리/미술, 그리고 ‘슬픔의 박물관’

Deposits of clastic carbonate-dominated (calciclastic) sedimentary slope systems in the rock record have been identified mostly as linearly-consistent carbonate apron deposits, even though most ancient clastic carbonate slope deposits fit the submarine fan systems better. Calciclastic submarine fans are consequently rarely described and are poorly understood. Subsequently, very little is known especially in mud-dominated calciclastic submarine fan systems. Presented in this study are a sedimentological core and petrographic characterisation of samples from eleven boreholes from the Lower Carboniferous of Bowland Basin (Northwest England) that reveals a >250 m thick calciturbidite complex deposited in a calciclastic submarine fan setting. Seven facies are recognised from core and thin section characterisation and are grouped into three carbonate turbidite sequences. They include: 1) Calciturbidites, comprising mostly of highto low-density, wavy-laminated bioclast-rich facies; 2) low-density densite mudstones which are characterised by planar laminated and unlaminated muddominated facies; and 3) Calcidebrites which are muddy or hyper-concentrated debrisflow deposits occurring as poorly-sorted, chaotic, mud-supported floatstones. These

Phd by thesis

Ju Mei,†,‡,∥ Nelson L. C. Leung,†,‡,∥ Ryan T. K. Kwok,†,‡ Jacky W. Y. Lam,†,‡ and Ben Zhong Tang*,†,‡,§ †HKUST-Shenzhen Research Institute, Hi-Tech Park, Nanshan, Shenzhen 518057, China ‡Department of Chemistry, HKUST Jockey Club Institute for Advanced Study, Institute of Molecular Functional Materials, Division of Biomedical Engineering, State Key Laboratory of Molecular Neuroscience, Division of Life Science, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China Guangdong Innovative Research Team, SCUT-HKUST Joint Research Laboratory, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China

Aggregation-Induced Emission: Together We Shine, United We Soar!

Luminogenic materials with aggregation-induced emission (AIE) attributes have attracted much interest since the debut of the AIE concept in 2001. In this critical review, recent progress in the area of AIE research is summarized. Typical examples of AIE systems are discussed, from which their structure–property relationships are derived. Through mechanistic decipherment of the photophysical processes, structural design strategies for generating new AIE luminogens are developed. Technological, especially optoelectronic and biological, applications of the AIE systems are exemplified to illustrate how the novel AIE effect can be utilized for high-tech innovations (183 references).

Aggregation-induced emission

Synthesis and Properties of New Small Band Gap Conjugated Polymers: Methine Bridged Poly(3,4-ethylenedioxypyrrole)

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Dextran-coating iron oxide (DCIO) nanoparticles were prepared by co-precipitation method and using dextran as the stabilizing agent. A glucose biosensor was successfully constructed firstly by simply drop-coating ferricyanide (Ferri)-DCIO onto screen-printed carbon electrodes (SPCEs), and then by layering-on glucose oxidase. The electrochemical characteristics of the modified SPCEs were analyzed by cyclic voltammetry, chronoamperometry, and electrochemical impedance spectroscopy. The optimal DCIO and enzyme loadings were 16 mg ml-1 and 0.7 U, respectively, and the sensitivity of the resulting biosensor was 0.4 μA mM-1 at 0.45 V with a wide linearity up to 44.4 mM glucose and the lower detection limit of about 1.23 mM.

GLUCOSE BIOSENSOR BASED ON DEXTRAN-Fe3O4 NANOCOMPOSITE MODIFIED SPCEs

Unraveling the Singlet Fission Effects on Charge Modulations of Organic Phototransistor Memory Devices

We undertook systematic transient current technique (TCT) studies, measuring the shapes of electron- and hole-transient currents in three sets of samples irradiated by 24 GeV/ c protons at fluences 16×10 14 –24×10 15  p/cm 2  We carried out these measurements after leaving the samples to anneal for 22–23 days at room temperature The three sets comprised (1) magnetic Czochralski (MCZ) n-type Si detectors; (2) MCZ p-type Si detectors; and (3) float-zone (FZ) n-type Si detectors (control set) The control set showed no surprises The space charge sign inversion (SCSI) had already occurred at the lowest fluence (16×10 14  p/cm 2 ), and the double junction/double peak effect was readily apparent, with the first junction, the minor one, near the p + contact, which changes very little with bias voltages It is superseded by the second junction near the n + contact (negative space charge) at biases higher than the full-depletion voltage For both MCZ n-type and p-type detectors, the double junction/double peak effect also was initiated at the lowest fluence, but the standard SCSI evident in FZ n-type detectors (wherein the negative space charge dominates the entire detector) was not seen in that fluence range However, in these two groups, the double junction/peak effect persisted into subsequent higher fluences with almost equal junctions near the p + and n + contacts, regardless of bias voltages, which may be much larger than the full-depletion voltages This new effect, termed the equal-double-junction effect, is unique for the 24 GeV/ c proton-irradiated MCZ (n and p) Si detectors It is evident by the almost identical shapes in TCT currents, before trapping corrections, for both electrons (red laser on the p + contact) and holes (on the n + contact), with the first peak always dominating a small second peak at any bias voltages After trapping corrections, the heights of the two peaks are about the same, suggesting the existence of nearly equal-double junctions in the detector

Equal-double junctions in 24 GeV/c proton-irradiated MCZ n- and p-type Si detectors: A systematic transient current technique investigation

A new SDD-Maia detector is being currently developed, consisting of an array of 384 silicon drift detectors (SDDs), each having a surface area of 1 mm2. The shape of each individual pixel is square in order to coincide with the footprint of the diode-based Maia detector. Each SDD pixel is made of a few concentric “rings” that supply a voltage gradient to form the drift field within the silicon. The detector has a double metal scheme that supplies biases to the single SDD rings. All 384 anodes of SDDs are connected to individual electronic channels. This effort was motivated by the need of improving the energy resolution and the throughput of existing diode-based Maia detectors.

Wen-Chang Chen

Papers

Synthesis and Properties of New Small Band Gap Conjugated Polymers: Methine Bridged Poly(3,4-ethylenedioxypyrrole)

GLUCOSE BIOSENSOR BASED ON DEXTRAN-Fe3O4 NANOCOMPOSITE MODIFIED SPCEs

Unraveling the Singlet Fission Effects on Charge Modulations of Organic Phototransistor Memory Devices

Equal-double junctions in 24 GeV/c proton-irradiated MCZ n- and p-type Si detectors: A systematic transient current technique investigation

Improvement of SDD-Maia Detector for X-ray Fluorescence Detection