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近冰温贮藏对西梅的采后品质及活性氧代谢的影响

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食品与发酵工业 2024年第11期50卷 270-276页

作者：文钰杨莉玲刘岚哦哈尔·帕孜力江张昱马文强杨晗丁高鹏崔宽波新疆农业大学食品科学与药学学院新疆乌鲁木齐830052 新疆农业科学院农业机械化研究所新疆乌鲁木齐830091 新疆维吾尔自治区粮油产品质量监督检验站新疆乌鲁木齐830002

该试验以新疆‘法兰西’西梅为试材,采用不同贮藏温度(近冰温、1~2℃和4~6℃)处理,定期测定西梅果实品质及活性氧代谢相关指标。结果表明,西梅果实冰点为-2.8℃,确定西梅果实近冰温的贮藏温度为-1~-1.5℃,与1~2℃和4~6℃贮藏相比,近冰... 详细信息

该试验以新疆‘法兰西’西梅为试材,采用不同贮藏温度(近冰温、1~2℃和4~6℃)处理,定期测定西梅果实品质及活性氧代谢相关指标。结果表明,西梅果实冰点为-2.8℃,确定西梅果实近冰温的贮藏温度为-1~-1.5℃,与1~2℃和4~6℃贮藏相比,近冰温贮藏可以显著维持西梅果实的表面色泽、硬度、可溶性固形物、可滴定酸和抗坏血酸的含量,有效降低西梅果实的呼吸强度。同时近冰温贮藏有效提高了西梅果实的过氧化物酶、过氧化氢酶和超氧化物歧化酶的活性,显著减缓超氧阴离子的产生速率,抑制H_(2)O_(2)的生成,进一步影响丙二醛的积累与细胞膜透性的上升。综上,近冰温贮藏可有效调控采后西梅果实活性氧代谢的平衡,保持其采后贮藏品质,从而延长其采后贮藏时间。该试验旨在为西梅采后贮藏保鲜提供技术参考和理论依据。

关键词：西梅近冰温冰点贮藏品质活性氧代谢

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动态称重式果品分选机设计与试验

食品与机械 2024年第4期40卷 84-89页

作者：刘佳杨莉玲马文强祝兆帅沈晓贺新疆农业科学院农业机械化研究所新疆乌鲁木齐830091

目的:解决中国鲜果人工分选准确率低、效率低、劳动强度大和生产成本高的问题。方法:基于果品质量分类法研制一款新型动态称重式果品分选机,该机具基于高精度称重单元采集的果品质量,然后经信号处理模块和PLC协同对采集的数据进行处理... 详细信息

目的:解决中国鲜果人工分选准确率低、效率低、劳动强度大和生产成本高的问题。方法:基于果品质量分类法研制一款新型动态称重式果品分选机,该机具基于高精度称重单元采集的果品质量,然后经信号处理模块和PLC协同对采集的数据进行处理并控制起弹器,根据水果质量实现果品的分级。该机具可连续实现果品(直径≤126 mm)的上料、称重、分选作业。结果:当分选效率分别为18327,14400,10473个/h时,分选准确率平均值分别为95.31%,96.12%,97.13%,损伤率分别为1.09%,1.11%,1.15%;水果分选速度显著影响分选的准确率,对果品损伤率影响不明显。结论:该新型动态称重式果品分选机能够在保持分选准确率>95%的前提下有效提升果品分选的效率且对果品损伤较小。

关键词：果品分选动态称重连续作业杏子

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果树修剪机械装备的发展现状与趋势

农机化研究 2025年第1期47卷 262-268页

作者：刘佳杨莉玲马文强买合木江·巴吐尔沈晓贺新疆农业科学院农业机械化研究所乌鲁木齐830091

林果整形修剪对实现果园通风透光、降低病虫害的发生几率、调节果品品质、稳定果品产量具有重要作用,是果园生产管理过程中尤为重要的一个环节,但其季节性强,需要劳动力多。为此,通过分析国内外修剪技术装备的研究与应用现状,论述了相... 详细信息

林果整形修剪对实现果园通风透光、降低病虫害的发生几率、调节果品品质、稳定果品产量具有重要作用,是果园生产管理过程中尤为重要的一个环节,但其季节性强,需要劳动力多。为此,通过分析国内外修剪技术装备的研究与应用现状,论述了相关修剪机械的工作原理及现有修剪机械存在的问题,并分析了林果修剪机械的发展趋势。

关键词：果树修剪装备存在问题发展趋势

EflFect of hepatocyte growth factor on left ventricular remodeling after acute myocardial infarction in canine

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Journal of Geriatric Cardiology 2006年第2期3卷 112-115页

作者： Ping LI Tingshu yang liling LIANG Department of Cardiovascular Disease Chinese PLA General Hospital Beijing 100853 China Department of Cardiovascular Disease Chinese PLA General Hospital Beijing 100853 China Department of Cardiovascular Disease Chinese PLA General Hospital Beijing 100853 China

Background and objectives To investigate the effect of hepatocyte growth factor (HGF) on left ventricular (LV) remodeling after acute myocardial infarction (AMI). Methods AMI was produced by ligation of proximal left anterior descending coronary artery(LAD) in 12 mongrel canines. These animals were randomized into 2 groups. In HGF group (n=6), canines were injected with pcDNA3-HGF lml (about 300ug) at the margin of infarcted myocardium; in control group (n=6) canines were injected with equal volume of normal saline. Cardiac function and left ventricular remodeling were evaluated with echocardiography at 1, 4, 8 weeks after MI. LV myocardium specimens were obtained at 8 weeks and stained with hematoxylin and eosin for histological examination or with sirius red to assess the collagen content. Results Compared with control group, LVEF in HGF group was significantly higher at 4 weeks (49.61+6.66 vs 39.84+6.39; P＜0.05) and at 8 weeks (51.57+8.53 vs 40.61+7.67; P＜0.05) after AMI, while LVESV was significantly lower in HGF group than that in control group at 8 weeks after AMI (18.98+3.47 vs 25.66+5.86; P＜0.05). Posterior left ventricular wall thickness decreased significantly from 1 wk to 8 wks after AMI in control group, while remained unchanged in HGF group. Compared with control group, histological examination showed more neovascularization and less scar, and sirius red staining indicated higher volume of type Ⅲ collagen (7.10±4.06% vs 3.77±1.09%; P＜0.05) and lower collagen Ⅰ/Ⅲ ratio value (1.11±0.52 vs 2.94±2.48; P＜0.05)in HGF group. Conclusion HGF gene transfer might improve cardiac function and LV remodeling after acute myocardial infarction by stimulating angiogenesis, reducing fibrosis, and reducing myocardial scarring.

关键词： hepatocyte growth factor myocardial infarction left ventricular remodeling

A novel method for determining the resistivity of compressed superconducting materials

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Matter and Radiation at Extremes 2024年第4期9卷 1-3页

作者： liling Sun Qi Wu Shu Cai yang Ding Ho-kwang Mao Center for High Pressure Science and Technology Advanced Research Beijing 100094China Institute of Physics Chinese Academy of SciencesBeijing 100190China

The measurement of resistivity in a compressed material within a diamond anvil cell presents significant *** high-pressure exper-imental setup makes it difficult to directly measure the size changes induced by pressure in the three crystallographic directions of the *** this study,we introduce a novel and effective method that addresses these technical *** method is anticipated to offer a valuable foundation for high-pressure investigations on quantum materials,particularly those with anisotropic layered structures.

关键词： resistivity method foundation

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冷等离子技术在果蔬类食品加工中的应用

食品工业 2024年第4期45卷 256-260页

作者：王庆惠王祥明杨莉玲崔宽波刘佳马文强新疆农业科学院农业机械化研究所乌鲁木齐830091 新疆维吾尔自治区农牧业机械产品质量监督管理站乌鲁木齐830054

随着生活水平的提高,人们对食品安全、品质、价格等方面的要求也越来越高。冷等离子体是继固态、液态和气态之后的第四种物质形态,在果蔬食品加工领域中的应用范围不断扩大。通过介绍冷等离子技术基本概念及放电形式,阐述冷等离子技术... 详细信息

随着生活水平的提高,人们对食品安全、品质、价格等方面的要求也越来越高。冷等离子体是继固态、液态和气态之后的第四种物质形态,在果蔬食品加工领域中的应用范围不断扩大。通过介绍冷等离子技术基本概念及放电形式,阐述冷等离子技术在果蔬食品干燥前预处理、保鲜、杀菌、农药降解和食品蛋白改性等方面的应用,以期为冷等离子技术在果蔬类食品加工中的实际应用提供参考。

关键词：冷等离子果蔬食品加工应用

Research on Regulation Method of Energy Storage System Based on Multi-Stage Robust Optimization

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Energy Engineering 2024年第3期121卷 807-820页

作者： Zaihe yang Shuling Wang Runhang Zhu Jiao Cui Ji Su liling Chen Electrical Dispatching and Control Center Yunnan Power GridKunming650011China Kunming Power Supply Bureau Yunnan Power Grid Co.Ltd.Kunming650011China Yuxi Power Supply Bureau Yunnan Power Grid Co.Ltd.Yuxi653100China

To address the scheduling problem involving energy storage systems and uncertain energy,we propose a method based on multi-stage robust *** approach aims to regulate the energy storage system by using a multi-stage robust optimal control method,which helps overcome the limitations of traditional methods in terms of time *** goal is to effectively utilize the energy storage power station system to address issues caused by unpredictable variations in environmental energy and fluctuating load throughout the *** achieve this,a mathematical model is constructed to represent uncertain energy sources such as photovoltaic and wind *** generalized Benders Decomposition method is then employed to solve the multi-stage objective optimization *** decomposing the problem into a series of sub-objectives,the system scale is effectively reduced,and the algorithm’s convergence ability is *** with other algorithms,the multi-stage robust optimization model has better economy and convergence ability and can be used to guide the power dispatching of uncertain energy and energy storage systems.

关键词： Multi-stage robust optimization energy storage system regulation methods output uncertainty

Hyperspectral detection of walnut protein contents based on improved whale optimized algorithm

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International Journal of Agricultural and Biological Engineering 2022年第6期15卷 I0035-I0041页

作者： Yao Zhang Zezhong Tian Wenqiang Ma Man Zhang liling yang Key Laboratory of Smart Agriculture System Integration Ministry of EducationChina Agricultural UniversityBeijing 100083China Agricultural Mechanization Institute Xinjiang Academy of Agricultural SciencesUrumqi 830091China

Nondestructive and accurate estimation of walnut kernel protein content is important for food quality grading and profitability improvement of walnut *** image technology provides potential solutions for walnuts nutrients detection by obtaining both spectral and textural ***,the redundancy and large computation of spectral data prevent the widespread application of hyperspectral technology for high throughput *** walnut kernel protein inversion from hyperspectral image,this study proposed a novel feature selection method,which is named as improved whale optimized algorithm(IWOA).In the IWOA,a comprehensive feature selection criterion was applied in the iterative process,which fully considered the relevance of spectra information with target variables,representative ability of the selected wavebands to entire spectra,and redundancy of the selected *** in the relevance with target variables,the amplitude and shape characteristics of the spectra were both taken into *** wavelengths around 996,1225,1232,1377,1552,1600,1691 and 1700 nm were then selected as the sensitive wavelengths to walnut *** wavelengths showed good correlation with certain chemical compounds related to protein contents *** three protein prediction models were *** analysis and comparison,the model based on the selected wavelengths got better results with the one based on the full *** to the models based on solely spectral information,the model that combine spectral and textural information outperformed and got the best prediction *** R2 in the calibration group was 0.9047,and the root mean square errors(RMSE)was 11.1382 g/*** the validation group,the R2 was 0.8537,and the RMSE was 18.9288 g/*** results demonstrated that the combination of the selected wavelengths through the IWOA with the textural characteristics could effectively estimate walnut prot

关键词： walnut protein hyperspectral image whale optimized algorithm feature selection textural indicator

Glutamicibacter nicotianae AT6:A new strain for the efficient biodegradation of tilmicosin

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Journal of Environmental Sciences 2024年第8期142卷 182-192页

作者： Huijuan Li Hao Zhou liling Fan Long Meng Yanyun Zhao Lanmei Zhao Bo Wang College of Chemical and Biological Engineering Shandong University of Science and TechnologyQingdao 266590China College of Chemistry and Chemical Engineering Heze UniversityHeze 274015China College of Safety and Environmental Engineering Shandong University of Science and TechnologyQingdao 266590China

The degradation of tilmicosin(TLM),a semi-synthetic 16-membered macrolide antibiotic,has been receiving increasing ***,there are three tilmicosin degradation methods,and among them microbial degradation is considered the best due to its high efficiency,eco-friendliness,and low ***,we found a new strain,Glutamicibacter nicotianae ***6,capable of degrading high-concentration TLM at 100 mg/L with a 97%removal *** role of tryptone was as well investigated,and the results revealed that the loading of tryptone had a significant influence on TLM *** toxicity assessment indicated that strain AT6 could efficiently convert TLM into less-toxic *** on the identified intermediates,the degradation of TLM by AT6 processing through two distinct pathways was then proposed.

关键词： Tilmicosin Glutamicibacter nicotianae Biodegradation Degradation pathway Pharmaceutical wastewater