31 research outputs found

    Comparison of PDW, PCT, and MPV in RVO, DR, and control group, by age.

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    Comparison of PDW, PCT, and MPV in RVO, DR, and control group, by age.</p

    Laboratory findings that PLT, PDW, PCT, and MPV in RVO, DR, and control group.

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    <p>Laboratory findings that PLT, PDW, PCT, and MPV in RVO, DR, and control group.</p

    Multiple logistic regression analysis of association of PDW and PCT with NVG secondary to RVO patients and in control individuals.

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    <p>Multiple logistic regression analysis of association of PDW and PCT with NVG secondary to RVO patients and in control individuals.</p

    Demographics of the study participants by NVG secondary to RVO patients, NVG secondary to DR patients, and controls.

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    <p>Demographics of the study participants by NVG secondary to RVO patients, NVG secondary to DR patients, and controls.</p

    Multiple logistic regression analysis of association of PDW and MPV with NVG secondary to DR patients and in control individuals.

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    <p>Multiple logistic regression analysis of association of PDW and MPV with NVG secondary to DR patients and in control individuals.</p

    Comparison of platelet parameters and demographics in O-NVG and C-NVG group.

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    <p>Comparison of platelet parameters and demographics in O-NVG and C-NVG group.</p

    Laboratory findings that PLT, PDW, PCT, and MPV in DM, DR, and control group.

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    <p>Laboratory findings that PLT, PDW, PCT, and MPV in DM, DR, and control group.</p

    Outstanding Energy Storage Performance of Na<sub>0.5</sub>Bi<sub>0.5</sub>TiO<sub>3</sub>‑BaTiO<sub>3</sub>‑(Sr<sub>0.85</sub>Bi<sub>0.1</sub>)(Mg<sub>1/3</sub>Nb<sub>2/3</sub>)O<sub>3</sub> Lead-Free Ceramics

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    Lead-free (1 – x)­(0.94Na0.5Bi0.5TiO3-0.06BaTiO3)-x(Sr0.85Bi0.1)­(Mg1/3Nb2/3)­O3 ((1 – x)­(NBT-BT)-xSBMN) ceramics are synthesized using the traditional solid-state reaction method. The introduction of SBMN leads to a dense microstructure with small mean grain size. The temperature-dependent dielectric spectrum reveals that the sample with x = 0.24 shows the best temperature stability with TS occurring around room temperature. A large recoverable energy storage density value of 3.05 J/cm3, high efficiency of 89%, and excellent temperature (25–140 °C)/frequency (1–100 Hz) stabilities are simultaneously achieved in the ceramic. The variation of recoverable energy storage density is less than 7% in the temperature range of 25–140 °C. The ceramic also has a high power density of 67.86 MW/cm3

    Data_Sheet_1_An application of BWM for risk control in reverse logistics of medical waste.docx

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    The pollution posed by medical waste complicate the procedures of medical waste logistics (MWL), and the increasingly frequent occurrence of public health emergencies has magnified the risks posed by it. In this study, the authors established an index of the factors influencing the risks posed by MWL along five dimensions: the logistics business, emergency capacity, equipment, personnel, and management. The best-worst case method was used to identify the critical risk-related factors and rank them by importance. Following this, we assessed the risk posed by MWL in four major cities in China as an example and propose the corresponding measures of risk control. The results showed that the linking of business processes was the most important factor influencing the risk posed by MWL. The other critical risk-related factors included the location of the storage site, the capacity for emergency transportation, measures to manage emergencies, and the safety of packaging. Of the cities considered, Beijing was found to be a high-risk city, and its MWL needed to be improved as soon as possible in light of the relevant critical risks. Shanghai, Guangzhou, and Shenzhen were evaluated as general-risk cities, which meant that the risks of MWL were not a priority in these areas, and the other goals of urban development should be comprehensively considered during the long-term planning for MWL in these municipalities.</p

    High-Entropy Design Toward Ultrahigh Energy Storage Density Under Moderate Electric Field in Bulk Lead-Free Ceramics

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    Electrostatic capacitors with ultrahigh energy-storage density are crucial for the miniaturization of pulsed power devices. A long-standing challenge is developing dielectric materials that achieve ultrahigh recoverable energy density Wrec ≥ 10 J cm−3 under moderate electric fields (30 ≤ E ≤ 50 kV mm−1). Herein, a specific high-entropy strategy is proposed to modulate the phase structure and interfacial polarization of medium-entropy base materials using linear dielectrics. This strategy ensures a sufficient polar phase and a high enough electric field for complete polarization, thereby achieving ultrahigh Wrec by enhancing polarization strength. The validity of this strategy is demonstrated in the (Na0.282Bi0.282Ba0.036Sr0.28Nd0.08)TiO3-xCa0.7Bi0.2TiO3 (NBBSNT-xCBT) (x = 0–0.15) system. The CBT-modulated samples exhibit a polyphase structure of R3c, P4bm, and Pm-3m with reduced remnant polarization (Pr). Additionally, the addition of CBT effectively suppresses interfacial polarization, enhancing the maximum polarization (Pmax). These factors significantly improve the value of ∆P = Pmax − Pr. As a result, an ultrahigh Wrec of 10.5 J cm−3 with a high-efficiency η of 80.3% is obtained in the x = 0.1 sample under a moderate electric field of 45 kV mm−1 for the first time. This work paves the way for achieving superior energy-storage performance under moderate electric fields
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