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Benefiting from the rapid development on chloride incorporated perovskite materials, nowadays, novel device fabricating techniques have sparked a new vision of ultraviolet photodetectors (UVPDs), which is moving toward higher precision, lower energy consumption, and greater miniaturization. Nevertheless, the natural poor solubility of chloride precursors for perovskites has limited their processability for achieving high‐performance self‐driven photovoltaic‐type UVPDs. Herein, a ball‐milling pretreated single‐source vapor deposition strategy is presented, which can facilely fabricate a pure‐phase CsPbCl3 perovskite film with supermicrometer crystal size and no grain boundaries in the vertical direction. Based on this excellent quality UV harvesting perovskite layer, an optimized self‐driven visible‐blind UVPD exhibits outstanding detection properties, including a superior peak responsivity of 118 mA W−1, a maximum specific detectivity of 6.62 × 1012 Jones, and a wide linear dynamic range of 136 dB, coupled with >1000 h operational durability in air ambient. Most notably, a recorded ultrafast rise/fall response time of 120/820 ns is realized as the fastest responsive perovskite UVPDs to date. In addition, this CsPbCl3 UVPD offers adequate visible‐transparency (>50% average visible transmittance) for a glazing integration by using a transparent back electrode, providing a promising pathway to realize a transparent sensor system for future smart window applications. [ABSTRACT FROM AUTHOR]

The chemical structures of the compounds were determined from the NMR and MS spectra and by comparison with reported values in the literature. The petroleum ether extract (5.3 g) was subjected to a series of silica gel columns (petroleum ether-ethyl acetate, 30:1 to 2:1) to afford 10 compounds on the basis of TLC analysis and a bioassay-guided fractionation. Compd. 2019; 55: 21. 1:CAS:528:DC%2BC1MXmsFeltbc%3D. 10.1007/s10600-019-02606-w 13 Sielinou VT, Vardamides JC, Ali MS, Ahmed Z, Hameed A, Nkengfack AE. In our continuous effort to explore inhibitory -glucosidase ingredients from this plant, we isolate 10 compounds from the petroleum ether extract of I H. erythromosticum i , which is the first report on compounds from the genus I Hylotelephium i , including diethyl 2-hydroxysuccinate ( B 1 b ), triethyl 2-hydroxypropane-1,2,3-tricarboxylate ( B 2 b ), 5-ethoxy-3-(ethoxycarbonyl)- 3-hydroxy-5-oxopentanoic acid ( B 3 b ), methyl -D-xylopyranoside ( B 4 b ), 4-hydroxy-2-methylphenyl- -D-glucopyranoside ( B 5 b ), 6 I O i -acetylarbutin ( B 6 b ), I cis i -caffeic acid ( B 7 b ), scopoletin ( B 8 b ), 24-propylcholesterol ( B 9 b ), and acacetin-7 I O i - -D-glucopyranoside ( B 10 b ). [Extracted from the article]

High-precision (±0.1 ppm) and high-frequency (hourly averaged) in situ measurements of atmospheric carbon dioxide (CO) were made for the first time from August 2005 to July 2007 at Yanbian, China using a non-dispersive Infrared (NDIR) analyzer with National Oceanic and Atmospheric Administration/Earth System Research Laboratory (NOAA/ESRL) standards. The results of these measurements are presented in this paper and are used to investigate the regional representativeness of regional background data at Yanbian and determine the CO emission source regions in Northeast Asia. The phase of the monthly variations at Yanbian reflects the special regional characteristics, which were overall in excellent agreement with other observatories in the middle-to-high latitudes in the Northern Hemisphere. Applying a hybrid receptor model to the regional emission source events in cold period (November-April), we estimated the distribution of the major CO emissions in the northeast Asia. The results indicated that the strongest potential emission areas contributing to Yanbian are the Beijing & Tianjin metropolitan areas, southwestern part of Shandong Province including Jinan, and Vladivostok. The results of this study reveal the usefulness of in situ CO measurements at Yanbian in establishing the scientific foundation for monitoring the large CO emission areas in northern China and Russia. Continued monitoring of CO at Yanbian within a regional network should provide significant contributions to both understanding the global/regional carbon cycle and constraining 'top-down' emissions in Northeast Asia. [ABSTRACT FROM AUTHOR]