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The moisture of most newly harvested corn ears could be as high as 30% in Jizhou, and the method of air-drying on sides of roads, which is weather-sensitive, is mostly adopted in rural areas.Considering the small-scale farm bin has been used widely in the northeast of China, it is meaningful to explore its applicability and optimal thickness in Jizhou. In this study, JSWD-120 (4×1.5×2 m) is chosen and modified into tree small-scale bins with the thickness of 0.8 m, 1.0 m and 1.2 m. The newly harvest corn ears are stored from the middle October to early April and different quality index are analyzed timely. Results show that corn ears stored in the bin with the thickness of 1.2 m show good quality in terms of moisture of 14.05%±0.001%, lower fatty acid values of (51.59±0.007) mgKOH/100g, crude starch content of (68.66±0.171) g/100g and amylose content of 20.65%. Moreover, mycotoxins, such as deoxynivalenol and ochratoxin A, are not detected. Based on the experiment results, it is reasonable to consider wider utilization of JSWD farm bins to the south of China

Carbon/Carbon(C/C) composites are widely used in aerospace industry due to their diverse advantages such as low density, reliable thermal shock resistance and excellent mechanical properties at elevated temperatures. However, their awful oxidation resistance, especially at higher temperatures, has greatly limited their further applications. Ultra-high temperature ceramics(UHTCs) are ceramics whose melting points are higher than 3000 ℃. Some advanced performances like high strength, high hardness and outstanding thermal stabilities have given the UHTCs huge potential in ultra-high temperature applications. Using UHTCs to modify the matrix of C/C composites is a commonly applied method to improve the oxidation resistance of the C/C composites. There are numerous methods to fabricate UHTCs modified C/C composites(C/C-UHTCs), yet none of them could assure low cost, high efficiency and uniform bulk density simultaneously. Compared to C/C composites, C/C-UHTCs possess better performances both in anti-oxidation ablation and mechanical properties. But, the long-term(over 120 s) anti-oxidation ablation properties and anti-oxidation ablation properties of prototype structures are waiting to be improved to meet the updated requirements of modern sharp-edged aerospace vehicles. Meanwhile, reducing the brittleness of the modified composites and improving the reliability of the structure should be considered in order to avoid the hazard brittle fracture of the composites. In order to provide references to future studies, the state of the arts of the C/C-UHTCs were reviewed from four perspectives, which were manufacture processes, microstructure morphologies, anti-oxidation ablation properties and mechanical performances. Moreover, the future research tendency of this kind of composites was also predicted in this work.

Northeast area is the main producing region and the most important outflow area of grain in China.In the process of grain transported from Northeast China Region,restricted by factors such as storage conditions,facilities and equipment,transportation pattern,quality monitoring and ecological area change,there are some grain quality problems such as higher losses of raw grain,grain damage,insect pest development,surface dew,local fever,decline of storage quality and taste quality,and even mildew.In order to promoting the technology application and provide technical reference for quality assurance transportation in China,it is suggested to promote the technical application of grain classification and classification,quality detection,green storage technology,the logistics facilities in grain transportation channels,improvement of‘Four Deconcentrations’ transportation rate and container transportation,the grain logistics information service,food consumption and processing demand production and marketing docking,grain quality monitoring and traceability etc.Strengthen the construction of quality-oriented circulation standard system to provide technical reference for quality-oriented grain transportation in China.

Although humans can recognize their body movements in point-light displays, self-recognition ability varies substantially across action types and participants. Are these variations primarily due to an awareness of visually distinct movement patterns, or to underlying factors related to motoric planning and/or individual differences? To address this question, we conducted a large-scale study in self-action recognition (N = 101). We motion captured whole-body movements of participants who performed 27 different actions across action goals and degree of motor planning. After a long delay period (~ 1 month), participants were tested in a self-recognition task: identifying their point-light action amongst three other point-light actors performing identical actions. We report a self-advantage effect from point-light actions, consistent with prior work in self-action recognition. Further, we found that self-recognition was modulated by the action complexity (associated with the degree of motor planning in performed actions) and individual differences linked to motor imagery and subclinical autism and schizotypy. Using dynamic time warping, we found sparse evidence in support of visual distinctiveness as a primary contributor to self-recognition, though speed distinctiveness negatively influenced self-recognition performance. Together, our results reveal that self-action recognition involves more than an awareness of visually distinct movements, with important implications for how the motor system may be involved. [ABSTRACT FROM AUTHOR]

Hybridized local and charge‐transfer (HLCT) with the utilization of both singlet and triplet excitons through the "hot excitons" channel have great application potential in highly efficient blue organic light‐emitting diodes (OLEDs). The proportion of charge‐transfer (CT) and locally excited (LE) components in the relevant singlet and triplet states makes a big difference for the high‐lying reverse intersystem crossing process. Herein, three novel donor (D)‐acceptor (A) type HLCT materials, 7‐([1,1′‐biphenyl]‐4‐yl(9,9‐dimethyl‐9H‐fluoren‐2‐yl)amino)‐3‐phenyl‐1H‐isochromen‐1‐one (pPh‐7P), 7‐([1,1′‐biphenyl]‐4‐yl(9,9‐dimethyl‐9H‐fluoren‐2‐yl)amino)‐3‐methyl‐1H‐isochromen‐1‐one (pPh‐7M), and 6‐([1,1′‐biphenyl]‐4‐yl(9,9‐dimethyl‐9H‐fluoren‐2‐yl)amino)‐3‐methyl‐1H‐isochromen‐1‐one (pPh‐6M), were rationally designed and synthesized with diphenylamine derivative as donor and oxygen heterocyclic coumarin moiety as acceptors. The proportions of CT and LE components were fine controlled by changing the connection site of diphenylamine derivative at C6/C7‐position and the substituent at C3‐position of coumarin moiety. The HLCT characteristics of pPh‐7P, pPh‐7M, and pPh‐6M were systematically demonstrated through photophysical properties and density functional theory calculations. The solution‐processed doped OLEDs based on pPh‐6M exhibited deep‐blue electroluminescence with the maximum emission wavelength of 446 nm, maximum luminance of 8755 cd m−2, maximum current efficiency of 5.83 cd A−1, and maximum external quantum efficiency of 6.54 %. The results reveal that pPh‐6M with dominant 1LE and 3CT components has better OLED performance. [ABSTRACT FROM AUTHOR]

In recent years, female germ line stem cells (FGSCs) in mammals have attracted much attention because of their contribution to follicular renewal and fertility maintenance/restoration, but their aging mechanism and preventive measures are still unclear. Studies have shown that the microenvironment changes in FGSCs nests, such as immune disorder, chronic inflammation and oxidative stress, can lead to the aging and plummeting of FGSCs through the mediation of relevant signaling pathways and genes. Therefore, the regulation of immune dysfunction, anti-inflammation and oxidative stress, and potential intervention to related signaling pathways as well as genes expression are expected to have some effect on slowing down FGSCs aging process.

Container transportation has become an important part of the new modern grain logistics system in China, which is convenient, efficient and flexible. Based on the analysis of domestic and foreign bulk grain container transportation and standards, this paper discussed the construction of the standard system of bulk grain container transportation, put forward the construction objectives, principles and ideas, designed the framework, and analyzed the various elements, in order to provide reference for solving the existing problems of bulk grain container transportation and lay a foundation for ensuring grain security in China.