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反渗透运行维护在化肥装置的应用

石油化工应用 2024年第4期43卷 105-109页

作者：焦玉香中国石油宁夏石化公司宁夏银川750026

化肥装置中脱盐水装置反渗透处于间歇运行状态,极易造成反渗透膜元件滋生大量微生物,污堵反渗透膜元件使其性能大幅衰减,不利于本装置的正常运行,针对这种情况,制定了相应的有效措施,保证了脱盐水装置的正常运行。

关键词：反渗透间歇运行污染物结垢

基于NSGA-Ⅱ算法的ATR发动机PI控制器多目标优化方法研究

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推进技术 2024年第2期45卷 183-191页

作者：焦昱翔赵庆军任三群蔡伟东许诚赵巍华北电力大学能源动力与机械工程学院北京102206 中国科学院工程热物理研究所北京100190 中国科学院大学航空宇航学院北京100190 中国科学院分布式冷热电联供系统北京市重点实验室北京100190

为了使空气涡轮火箭发动机(ATR)从慢车快速、稳定和准确地加速到最大状态,以ATR发动机燃气发生器流量和尾喷管喉部面积为控制变量,采用快速非支配排序遗传算法(NSGA-Ⅱ算法)建立了发动机控制器参数多目标优化方法。将超调量、稳态误差... 详细信息

为了使空气涡轮火箭发动机(ATR)从慢车快速、稳定和准确地加速到最大状态,以ATR发动机燃气发生器流量和尾喷管喉部面积为控制变量,采用快速非支配排序遗传算法(NSGA-Ⅱ算法)建立了发动机控制器参数多目标优化方法。将超调量、稳态误差、上升时间及误差积分值四个指标以加权的形式作为目标函数,引入执行机构超调惩罚机制,建立了PI控制器参数Pareto最优解集,完成了ATR发动机从慢车加速到最大状态的动态过程仿真。结果表明,将双回路多个控制性能指标以加权的形式组合作为目标函数,可以获得均匀分布的Pareto前沿;联合应用多目标优化方法和基于熵权法的优劣解距离法(TOPSIS),能够在双回路耦合下获得满足设计要求的ATR发动机动态特性,极大地缩短了人工整定控制器参数的时间;在加速过程中,多目标优化方法将涡轮膨胀比上升时间作为目标函数之一,与尾喷管面积开环控制动态过程相比,可以使涡轮膨胀比更早到达目标值,共同工作线远离喘振边界。

关键词：空气涡轮火箭发动机动态过程 PI控制器参数优化遗传算法

Prediction model for the initial seed clearing angles of a precision seed meter based on vector fields

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International Journal of Agricultural and Biological Engineering 2024年第2期17卷 140-148页

作者： Wan jiao Junjie Zhang Xuhui Chen Hao Shen yuxiang Huang Jiangtao Shi College of Mechanical and Electric Engineering Northwest A&F UniversityYangling 712100ShaanxiChina Xi’an YaAo Agricultural Machinery Ltd Xi’an 710300China

Seed clearing is a critical stage during precision seed metering process to ensure high seed ***,there is a lack of understanding of the dynamics in the seed clearing *** this study,a model was developed to predict initial seed clearing angle,in the seed clearing process using vector *** model was applied to an existing high-speed metering device and soybean seeds,and the model was evaluated with bench testing *** showed that dynamic changes in forces and constraints of seeds during the seed clearing process could be abstracted as vectors,and the changes of vector directions could be described by their phase *** phase angles were functions of the rotational angle of the seed *** phase angle of the constraint boundary linearly increases with the increase of the rotational *** phase angle of the force fluctuates,as the rotational angle *** seed clearing angle obtained from the phase angles varies from 8°to 59°,depending on the seeder travel *** comparing the values of the initial seed clearing angles predicted by the model with those from the bench tests,the root mean square error(RMSE)were from 2.73 to 3.14,and the correlation(r)between predict and observer were all higher than 0.98,indicating that the model had reasonably good accuracy.

关键词： mechanical precision seeder initial seed clearing angle prediction model vector fields high-speed photography technology

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脂肪干细胞的分离培养、分化及其应用

沈阳医学院学报 2019年第6期21卷 559-564页

作者：李玉秋焦玉祥刘锐黄飞山东华思生物科技有限公司

脂肪干细胞(adipose-derived stem cells,ADSCs)是从脂肪组织中分离得到的一种具有多向分化潜能的成体干细胞,在不同的诱导因子作用下,可以向脂肪细胞、软骨细胞、肌细胞、血管内皮细胞、神经细胞、表皮细胞及胰岛细胞分化。ADSCs的这... 详细信息

脂肪干细胞(adipose-derived stem cells,ADSCs)是从脂肪组织中分离得到的一种具有多向分化潜能的成体干细胞,在不同的诱导因子作用下,可以向脂肪细胞、软骨细胞、肌细胞、血管内皮细胞、神经细胞、表皮细胞及胰岛细胞分化。ADSCs的这些分化潜能,可被应用于美容整形和多种疾病的临床治疗。近年来,随着其研究深度的增加,ADSCs应用的范围也越来越广。本文就ADSCs的分离培养、分化及其应用进展进行综述。

关键词：脂肪干细胞细胞分化应用研究再生医学

Clinical Study of Acupotomy Trinity Lysis Combined with Rehabilitation Training for Spastic Paralysis after Stroke

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Journal of Clinical and Nursing Research 2021年第3期5卷 77-82页

作者： Fajin Wang Jianyong Gao Lifeng Ma Yali Hu Yumin Yan Shan Gao yuxiang jiao Department of Encephalopathy Binzhou Hospital of Traditional Chinese MedicineBinzhou 256600Shandong ProvinceChina Linyi Hospital of Traditional Chinese Medicine Linyi 276002Shandong ProvinceChina Binzhou Hospital of Traditional Chinese Medicine Binzhou 256600Shandong ProvinceChina

Objective:To study the clinical efficacy of acupotomy trinity lysis combined with rehabilitation training in the treatment of spastic paralysis after stroke,and to provide guidance for clinical diagnosis and ***:From July 2019 to November 2020,119 patients with post-stroke spastic paralysis who were admitted to our hospital's encephalopathy department were selected as the research objects,and 61 patients were divided into acupuncture combined with rehabilitation training group as the observation group by random number table method.58 patients were divided into the rehabilitation training group as the control *** 21 days of treatment,they passed the modified Ashworth Spasm Scale(MAS)grading scale score,Clinical Spasm Index(clinical spasm index,CSI)assessment,Fugl,Meyer exercise function scale(FMA)Score,Modified Barthel Index Score,and compare the clinical efficacy after ***:After treatment,the total effective rate of the observation group(95.08%)was higher than that of the control group(86.21%),and the difference was statistically significant(P<0.05);Before treatment,the contrast difference of MAS,FMA,CSI scores and modified Barthel index scores of the two groups of patients is not statistically significant;After treatment,the MAS scores and CSI scores of the elbow and knee joints of the observation group[(1.52±0.81)(1.46±0.83)(5.87±2.12)]were significantly lower than those of the control group[(2.17±0.68)(2.03±0.79)(8.36±2.41)];FMA upper limb and lower limb scores and modified Barthel index[(51.87±4.41)(30.21±5.05)(72.41±5.81)]of the observation group were significantly higher than those of the control group[(44.26±4.78)(28.45±4.23)(68.65±6.09)],the difference was statistically significant(P<0.05).Conclusion:Acupotomy trinity lysis combined with rehabilitation training is effective in treating patients with post-stroke spastic *** provides a safe,reliable and clinically effective new program,which is worthy of popularizat

关键词： Acupotomy trinity lysis Rehabilitation training Post-stroke Spastic paralysis

Clinical Study of Acupuncture Combined with Emotional Intervention in Patients with Post-Stroke Depression

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Journal of Clinical and Nursing Research 2023年第4期7卷 133-138页

作者： Fajin Wang Yanyan Huang Zhidan Zhang Yanhong Yang Huikai Wang Hao Han Yongsheng Zhang yuxiang jiao Jianyong Gao Binzhou Hospital of Traditional Chinese Medicine Binzhou 256600Shandong ProvinceChina

Objective:To investigate the clinical efficacy of acupuncture combined with emotional intervention in patients with post-stroke depression(PSD).Methods:A total of 100 patients with PSD who met the inclusion criteria were randomly divided into an experimental group(50 cases)and a control group(50 cases)using the random number table method,and the enrollment was in order of admission *** control group used conventional treatment of oral antidepressant Deanxit tablets(0.5 mg flupenthixol+10 mg melitracen)with the dose appropriately adjusted according to the patient’s medication effect,and modern rehabilitation treatment given selectively according to the patient’s *** experimental group had similar treatment as the control group with the addition of traditional Chinese medicine(TCM)acupuncture combined with emotional *** application effects of both groups before and after treatment were verified using the Hamilton Depression Rating Scale(Ham-D),National Institutes of Health Stroke Scale(NIHSS),and Activities of Daily Living(ADL),serotonin levels were measured,and statistical analyses were carried ***:The total effective rate of patients in the experimental group was significantly higher than that in the control group,and the Ham-D score,NIHSS score,ADL score,and serotonin level after treatment were significantly higher than those in the control group,and the difference between the two groups was statistically significant(P<0.05).Conclusion:For patients with PSD,adding TCM acupuncture with emotional intervention on top of conventional treatment significantly improve the clinical efficacy and better improve the daily life ability of patients.

关键词： Post-stroke depression Emotional intervention Acupuncture Conventional treatment

80 t全废钢电弧炉造渣石灰消耗量影响因素分析

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工业加热 2022年第9期51卷 5-8页

作者：杨燚黄炳荣战东平焦榆翔李丙江崔岳铭东北大学冶金学院辽宁沈阳110819

全废钢电弧炉是一种低碳炼钢方法,造渣对电弧炉炼钢过程的各项经济技术指标有显著影响。对某厂80 t全废钢电弧炉炼钢过程造渣用石灰消耗量的影响因素进行了详细分析,并结合理论石灰消耗量模型进行了讨论。结果表明:装入量、钢铁料消耗... 详细信息

全废钢电弧炉是一种低碳炼钢方法,造渣对电弧炉炼钢过程的各项经济技术指标有显著影响。对某厂80 t全废钢电弧炉炼钢过程造渣用石灰消耗量的影响因素进行了详细分析,并结合理论石灰消耗量模型进行了讨论。结果表明:装入量、钢铁料消耗、氧耗量和通电时间等与石灰消耗量有一定关系,但其相关性还会受到留钢量、留渣量等的影响;当钢中终点磷质量分数从0.01%降低到0.005%时,石灰消耗量从平均34 kg/t左右将增加到平均35 kg/t以上;石灰消耗量模型理论计算值与实际石灰消耗量差值小于3 kg/t钢,模型计算结果对实际生产具有一定指导意义。

关键词：电弧炉石灰消耗量模型废钢造渣

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电务车载设备智能运维系统研究

铁道通信信号 2024年第8期60卷 9-15页

作者：宋社平黄玉祥焦炳岩王凯刘忠合河南思维自动化设备股份有限公司郑州450000 中国铁路武汉局集团有限公司武汉430000

针对电务车载设备生产过程中生产计划编制繁琐、生产任务难以跟踪、与外部信息系统间数据互不共享等问题,提出电务车载设备智能运维系统。通过与相关信息系统的互联互通,解决电务车载设备生产中数据的共享问题;采用智能化生产计划编排技... 详细信息

针对电务车载设备生产过程中生产计划编制繁琐、生产任务难以跟踪、与外部信息系统间数据互不共享等问题,提出电务车载设备智能运维系统。通过与相关信息系统的互联互通,解决电务车载设备生产中数据的共享问题;采用智能化生产计划编排技术,自动生成年、月、日计划,并将计划中的任务分派到相关的工区或个人,按照生产作业数据,形成机车、设备的运维履历及人员的作业履历;使用便携式手持机替代传统的电脑端操作,提高电务日常作业的便捷性、高效性;提供多维度的统计报表,可直观掌握机车、设备、人员的动态数据,为决策提供依据。该系统已在武汉局上线运行,成为电务车载设备管理的必要工具。

关键词：电务车载设备智能运维生产计划生产任务设备管理

基于灰色预测与线性回归模型的新能源汽车与双碳相关性研究——以长三角地区为例

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计算机应用文摘 2024年第10期40卷 133-135,142页

作者：高宇翔袁昕晨张潇焦恒伟尚佳慧榆林学院陕西榆林719000 上海健康医学院上海201318

基于往年的新能源汽车产量数据,文章通过优劣解距离法、线性回归、灰色预测及Lasso回归建立了模型,预测了长三角地区的新能源汽车的发展及双碳目标的达成情况。首先,建立了灰色预测模型以预测2023—2025年长三角地区新能源汽车的市场保... 详细信息

基于往年的新能源汽车产量数据,文章通过优劣解距离法、线性回归、灰色预测及Lasso回归建立了模型,预测了长三角地区的新能源汽车的发展及双碳目标的达成情况。首先,建立了灰色预测模型以预测2023—2025年长三角地区新能源汽车的市场保有量,同时用优劣解距离法研究了长三角地区新能源汽车在全国新能源汽车中的作用与地位。其次,用线性回归研究了我国新能源汽车与传统燃油车的市场竞争关系,通过灰色预测模型找到了我国新能源汽车和燃油汽车保有量随时间变化的规律。最后,用Lasso回归描述了新能源汽车的发展与双碳的关系,并预测了长三角地区碳达峰和碳中和的达成时间。

关键词：灰色预测优劣解距离法 Lasso回归线性回归