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11.
To further improve the boiler ash ratio detection methods and resource utilization, through image processing technology for boiler ash ratio analysis, the article first studied the one-dimensional Otsu algorithm, and then for the one-dimensional Otsu algorithm, in order to improve the accuracy of the algorithm, then it puts forward a two-dimensional Otsu algorithm. Finally the two-dimensional Otsu algorithm combined with the one-dimensional Otsu algorithm and the improved Otsu algorithm. By analyzing the improved Otsu algorithm, this paper considers the pixel gray value, neighborhood information, excluding light, noise and the relative efficiency of one-dimensional Otsu algorithm higher accuracy. The relative dimensional Otsu algorithm operating efficiency has been greatly improved. Improved Otsu algorithm in dealing with boiler ash ratio detection has played a very good part in the ecological environment, economic development and some other important aspects. 相似文献
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不同改良剂对滨海盐渍粉土改良效果的试验研究 总被引:2,自引:0,他引:2
采用桶栽试验的方法,研究了基质、稻壳和菌糠三种不同有机质改良剂对滨海盐渍粉土理化性质和西红柿产量的影响。研究结果表明:与不加改良剂(CK)相比,三种有机质改良剂可降低表层土壤干容重22.5%~33.1%,孔隙率增加25.5%~37.7%;土壤的含盐量降低5.05%~24.54%。使用改良剂处理的土壤,碱化度(ESP)、pH、土壤交换性Na+、土壤Na+、K+占阳离子总量和土壤Cl-下降,而土壤Ca2+和SO42-增加。三种改良剂均能显著增加西红柿的产量,增幅在24.05%~34.46%;单果总量整体有所提高。结果表明,基质、稻壳和菌糠对滩涂高钠盐粉土均具有较好的改良效果。综合考虑改良剂的价格、材料获得难易程度,稻壳和菌康是较为适宜的滨海盐渍粉土改良材料。 相似文献
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Wansang Lim Rebecca Miller Jungeun Park Sunghun Park 《Journal of food science》2014,79(6):S1212-S1217
Tomatoes have ameliorative effects on cardiovascular disease and cancer. In this study, metabolic engineering of flavonoids was utilized to improve the nutritional value of tomatoes by increasing flavonol and anthocyanin content. Total flavonol content was significantly increased in both the peel and flesh using the onion chalcone isomerase (CHI) gene. The Delila (Del) and Rosea1 (Ros1) genes from the snapdragon Antirrhinum majus were concomitantly expressed to produce an anthocyanin‐rich tomato which was purple in color. Sensory evaluation by a panel of 81 untrained consumers revealed no significant difference in liking of color or texture between CHI, Del/Ros1, and wild‐type tomatoes. Consumers reported marginal but significantly higher preference for the flavor and overall liking of CHI tomatoes over Del/Ros1 and wild‐type tomatoes. This study is the first to report the results of sensory tests of transgenic tomatoes by a consumer panel representing the general consuming public. 相似文献
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Gurdeep Rattu P. Murali Krishna 《International Journal of Food Science & Technology》2021,56(9):4328-4337
l -lactate is a conjugate base of α-hydroxy acid, a key organic chemical in food processing, fermentation, biology and chemical industries. We are reporting for the first time a facile and rapid non-enzymatic nanosensor for l -lactate detection in tomato-based products using 3-aminophenylboronic acid (3-APBA)-added zinc oxide nanoparticles (ZnO NPs). 3-APBA-functionalised ZnO NPs have a selective and stable SPR intensity change at pH 5.5 to 7.5 and forms a reversible ester with bound l -lactate revealing the wavelength shift from λ = 300 nm to 288 nm in UV-VIS absorption spectrometry. In the spiked (2.5–20 mm ) samples of tomato puree, absorption peak increased as per l -lactate addition with the lower detection limit of 3.98 mm . l -lactate binds with a trigonal form of 3-boronate, thereby generating the tetrahedral complex. ZnO NPs stabilise the tetragonal complex. Nanosensor validated with standard HPLC. This method is useful for l -lactate detection and alternates to conventional techniques. 相似文献
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样品采用固相萃取小柱净化,以C18色谱柱为分离柱,以甲酸水—乙腈为流动相进行梯度洗脱,经LC-MS/MS检测,以多反应监测模式检测目标化合物的特征离子进行定性定量分析。结果表明:该方法线性范围为0.1~10.0μg/mL,线性相关系数0.999 0,方法的检出限为0.01mg/kg,定量限为0.03mg/kg。在加标水平为0.03,0.10,0.50 mg/kg时,方法的回收率为88.3%~95.2%,RSD在4.5%~8.8%。该方法前处理方式简便、有机溶剂用量少、分析时间短、选择性好且灵敏度高,适用于番茄和黄瓜中敌菌灵的检测。 相似文献
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