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基于航班信息的机坪智慧照明监控系统设计方案探讨

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照明工程学报 2024年第1期35卷 112-116页

作者：任立平广州白云国际机场建设发展有限公司广东广州510403

随着国家“双碳”战略深入推进和“四型机场”建设广泛开展,各机场持续开展技术创新,传统的民航机场机坪照明监控系统是以RS485通讯总线方式实现高杆灯按照分区分组、光控与时控等模式的单系统照明,其控制方式简单、系统可靠性不高、智... 详细信息

随着国家“双碳”战略深入推进和“四型机场”建设广泛开展,各机场持续开展技术创新,传统的民航机场机坪照明监控系统是以RS485通讯总线方式实现高杆灯按照分区分组、光控与时控等模式的单系统照明,其控制方式简单、系统可靠性不高、智慧化程度不足、节能效果有限,已难以适应新时代照明需求。文章立足行业实际,充分借鉴有关机场照明系统建设方面的经验,提出了一种基于航班信息的机坪智慧照明监控系统方案,用数据联动实现机坪与机位按需照明,最大程度地节能减排,助力绿色机场发展。

关键词：泛光照明高杆灯智慧照明系统停机坪机位标记牌

苜蓿草粉对仔猪生长性能、肠道抗氧化指标和肠道形态结构的影响

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中国饲料 2024年第6期 18-21页

作者：李颖任丽萍远永来济南市动物疫病预防与控制中心山东济南250099 西华县农业农村局河南周口466600

文章旨在探究苜蓿草粉对仔猪生长性能、肠道抗氧化指标和肠道形态结构的影响。试验将320只日龄(28±2)相近、健康状况良好的仔猪分为4组,每组8个重复,每个重复10头,分别使用0%、3%、6%和9%的苜蓿草粉替代麸皮为各试验组日粮,试验共计76... 详细信息

文章旨在探究苜蓿草粉对仔猪生长性能、肠道抗氧化指标和肠道形态结构的影响。试验将320只日龄(28±2)相近、健康状况良好的仔猪分为4组,每组8个重复,每个重复10头,分别使用0%、3%、6%和9%的苜蓿草粉替代麸皮为各试验组日粮,试验共计76 d,其中6 d的适应期和70 d的正式试验。结果表明,日粮添加6%和9%的苜蓿草粉组仔猪终末体重显著提高3.2%和3.5%(P0.05)。6%和9%的苜蓿草粉组仔猪十二指肠GSH-Px酶活性显著高于其他各组(P0.05)。6%和9%的苜蓿草粉组仔猪十二指肠V/C值显著高于其他各组(P0.05)。综上所述,添加苜蓿草粉能有效增强仔猪肠道抗氧化性能,改善其肠道结构并促进其生长,在本试验条件下,苜蓿草粉最适替代量6%。

关键词：苜蓿草粉断奶仔猪生长性能肠道抗氧化肠道形态

螺栓拧紧系数对压缩机气缸变形的影响及测量方法的试验研究

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流体机械 2024年第8期52卷 76-82页

作者：任丽萍魏会军颜伟豪空调设备及系统运行节能国家重点试验室广东珠海519070 广东省制冷设备节能环保技术企业重点试验室广东珠海519070 珠海格力电器股份有限公司广东珠海519070

为了改善压缩机的装配工艺,提升压缩机的性能及可靠性,提出了一种可精确获得螺钉拧紧扭矩系数的电测方法,并结合螺钉加载特点对螺钉扭矩系数的测量方法进行了试验研究,试验得到的结果与理论结果的相对误差仅为0.86%。结果表明,该电测方... 详细信息

为了改善压缩机的装配工艺,提升压缩机的性能及可靠性,提出了一种可精确获得螺钉拧紧扭矩系数的电测方法,并结合螺钉加载特点对螺钉扭矩系数的测量方法进行了试验研究,试验得到的结果与理论结果的相对误差仅为0.86%。结果表明,该电测方法可以消除温度、弯矩等因素对准确性的影响。建立了在不同螺栓预紧力下计算气缸壁面变形的仿真分析方法,15°,105°,195°,285°共4个测点在3种扭矩(9.5,11.5,13.5 N·m)情况下气缸变形量与试验值的误差均小于10%。研究结果对高性能压缩机的设计具有参考价值。

关键词：压缩机螺栓拧紧系数电测法

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38例尘肺病患者的临床特征及死亡原因分析

中华劳动卫生职业病杂志 2024年第7期42卷 530-533页

作者：景华吴媛吴凡张振鲁马丽任丽萍山东第一医科大学附属职业病医院(山东省职业病医院)药物临床研究中心济南250002

目的分析尘肺病死亡患者的临床特征及死亡原因,为尘肺病的防治和管理提供依据。方法于2022年6月至2023年7月,以山东省职业卫生与职业病防治研究院确诊38例死亡尘肺病患者为研究对象。通过医院管理信息系统(HIS)、实验室信息管理系统(LIS... 详细信息

目的分析尘肺病死亡患者的临床特征及死亡原因,为尘肺病的防治和管理提供依据。方法于2022年6月至2023年7月,以山东省职业卫生与职业病防治研究院确诊38例死亡尘肺病患者为研究对象。通过医院管理信息系统(HIS)、实验室信息管理系统(LIS)调取患者临床资料,分析尘肺病死亡患者的基本情况、行业工种分布、病程、工作性质、报销类型、并发症/合并症,以及直接死亡原因等内容。用单因素方差分析比较不同接尘工龄尘肺病死亡患者的病程差异。结果38例死亡尘肺病患者中男性37人、女性1人,接尘工龄5~37(19.29±8.17)年,病程5~41(20.26±8.53)年,死亡年龄27~86(70.42±12.26)岁。尘肺壹期10例、贰期18例、叁期10例,矽肺32例(84.21%)。年龄分布≥65岁30人(78.95%),<65岁8人(21.05%)。从事行业以金属制品业(18人,47.37%)为主,工种分布以掘进工(11人,28.95%)为主。接尘工龄10~<30年的死亡尘肺病患者占76.32%(29/38),接尘工龄20~<30年的尘肺病患者平均病程最长[(24.00±9.39)年],不同工龄组平均病程差异无统计学意义(F=1.81,P=0.165)。死亡患者工作单位为私人企业或工厂,住院费用个人承担为21人(55.26%);工作单位为国企,住院费用工伤报销17人(44.74%)。死亡尘肺病患者合并症/并发症主要为呼吸系统感染18例(47.37%)、慢性肺源性心脏病(肺心病)18例(47.37%)。直接死因居前3位的分别为尘肺病13例(34.21%)、肺部感染10例(26.32%)和肺癌7例(18.42%)。结论38例死亡尘肺病患者多合并呼吸系统、心血管系统疾病,呼吸系统疾病是导致尘肺病患者死亡的主要原因。

关键词：尘肺死亡原因临床特征矽肺

Spatial and temporal distribution of acetochlor in sediments and riparian soils of the Songhua River Basin in northeastern China

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Journal of Environmental Sciences 2011年第10期23卷 1684-1690页

作者： Xiaoyin Sun Qixing Zhou Wenjie ren Xuhui Li liping ren Key Laboratory of Terrestrial Ecological Process Institute of Applied Ecology Chinese Academy of Sciences Shenyang 110016 China Graduate School of the Chinese Academy of Sciences Beijing 100049 China College of Geography and Tourism Shandong Qufu Normal University Qufu 273165 China Key Laboratory of Pollution Processes and Environmental Criteria （Ministry of Education） College of Environmental Science and Engineering Nankai University Tianjin 300071 China

The Songhua River Basin is a burgeoning agricultural area in the modern times in China. Particularly in recent years, increasing chemical fertilizers and pesticides have been applied with the development of agricultural production. However, the situation of non- point source pollution （NSP） from agricultural production in this basin is still obscure. In order to solve the problem, the occurrence and distribution of acetochlor in sediments and riparian soils of the Songhua River Basin before rain season and after rain season were investigated. In addition, total organic carbon was analyzed. The result showed that the concentration of acetochlor ranged from 0.47 to 11.76 μg/kg in sediments and 0.03 to 709.37 μg/kg in riparian soils. During the high flow period in 2009, the mean concentration was 4.79 μg/kg in sediments and 0.75 μg]kg in riparian soils, respectively. Similarly, the mean concentration was 2.53 μg/kg in sediments and 61.36μg/kg in riparian soils, during the average flow period in 2010. There was a significant correlation between the concentration of acetochlor and total organic carbon in surface sediments. Moreover, the distribution of acetochlor in sediments of the Songhua River was significantly correlated to land use and topography of the watershed. The investigated data suggested that the concentration of acetochlor in the Songnen Plain and the Sanjiang Plain was higher than that in the other areas of the basin, and riparian buffering zones in these areas bad been destroyed by human activities. The optimal agricultural measures to alleviate the contamination of pesticides should be adopted, including controlling agricultural application of acetochlor and ecological restoration of riparian buffering strips.

关键词： acetochlor Songhua River Basin non-point source pollution optimal agricultural measure

Horizontal distribution and levels of heavy metals in the biggest snowstorm in a century in Shenyang,China

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Journal of Environmental Sciences 2008年第7期20卷 846-851页

作者： AN Jing ZHOU Qixing LIU Weitao ren liping Key Laboratory of Terrestrial Ecological Process Institute of Applied EcologyChinese Academy of SciencesShenyang 110016China The Graduate School of the Chinese Academy of Sciences Beijing 100039China Key Laboratory of Pollution Processes and Environmental Criteria(Ministry of Education) College of Environmental Science and EngineeringNankai UniversityTianjin 300071China

The horizontal distribution and levels of heavy metals in the biggest snowstorm in Shenyang since 1904 were investigated by analyzing 4 metals (As,Cd,Pb,and Cu) in a series of ultraclean samples collected from 17 sites distributed in different regions of the Shenyang area,*** results showed that the concentrations of all the 4 heavy metals in snow from the industrial regions were high,up to 7.3 (As),2.2 (Cd),850.0 (Pb),and 0.197-20.2 (Cu)μg/kg,*** the suburb,in contrast,their concentration...

关键词： heavy metal distribution pollution level snowstorm extreme climate

不明原因复发性流产患者维生素D与母胎界面外周血炎性细胞因子的相关性研究

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山西医药杂志 2024年第3期53卷 185-189页

作者：许烨烨任丽萍上海市长宁区妇幼保健院妇产科 200050 上海市长宁区妇幼保健院产科 200050

目的探讨不明原因复发性流产(URSA)患者血清维生素D[25-(OH)D]与母胎界面、外周血γ干扰素(IFN-γ)、白细胞介素-4(IL-4)、白细胞介素-17(IL-17)、转化生长因子-β(TGF-β)相关性。方法选择2021年9月至2022年5月在上海市长宁区妇幼保... 详细信息

目的探讨不明原因复发性流产(URSA)患者血清维生素D[25-(OH)D]与母胎界面、外周血γ干扰素(IFN-γ)、白细胞介素-4(IL-4)、白细胞介素-17(IL-17)、转化生长因子-β(TGF-β)相关性。方法选择2021年9月至2022年5月在上海市长宁区妇幼保健院收治的30例URSA患者做为观察对象(URSA组),另选同期要求人工流产的正常早孕妇女30例作为对照组,采用酶联免疫吸附试验(ELISA)法检测血清及蜕膜组织IFN-γ、IL-4、IL-17、TGF-β水平,化学发光法检测25-(OH)D水平,Pearson法分析URSA患者血清25-(OH)D与IFN-γ、IL-4、IL-17、TGF-β的相关性。结果 URSA组患者蜕膜组织中IFN-γ、IL-17水平分别为(11.3±2.6)pg/ml、(20.3±3.6)pg/ml,高于对照组的(4.6±0.9)pg/ml、(12.4±2.2)pg/ml(P<0.05),IL-4、TGF-β水平分别为(9.6±2.8)pg/ml、(15.6±3.5)pg/ml,低于对照组的(15.5±3.2)pg/ml、(24.2±4.2)pg/ml,差异均有统计学意义(P<0.05);URSA组患者血清IFN-γ、IL-17水平分别为(18.9±3.6)pg/ml、(41±7)pg/ml,高于对照组的(12.6±2.6)pg/ml、(28±6)pg/ml (P<0.05),IL-4、TGF-β、25-(OH)D水平分别为(25±5)pg/ml、(45±6)pg/ml、(27±5)ng/ml,低于对照组的(33±6)pg/ml、(52±8)pg/ml、(45±7)ng/ml,差异均有统计学意义(P<0.05);URSA患者血清25-(OH)D水平与蜕膜组织及血清IFN-γ、IL-17水平呈负相关,与蜕膜组织及血清IL-4、TGF-β水平呈正相关(P<0.05);使用维生素D治疗后,URSA组患者血清IFN-γ、IL-17水平分别为(14.2±2.8)pg/ml、(33.7±5.0)pg/ml,低于治疗前的(18.9±3.6)pg/ml、(41.2±6.8)pg/ml(P<0.05),IL-4、TGF-β水平分别为(28±4)pg/ml、(49±5)pg/ml,高于治疗前的(25±5)pg/ml、(45±6)pg/ml,差异均有统计学意义(P<0.05)。结论 URSA患者的IFN-γ、IL-17水平升高,IL-4、TGF-β水平降低,与25-(OH)D缺乏有关,补充25-(OH)D可调节IFN-γ、IL-4、IL-17、TGF-β表达。

关键词：维生素D γ干扰素白细胞介素-4 白细胞介素17 转化生长因子-β

Effect of Saccharomyces cerevisiae on alfalfa nutrient degradation characteristics and rumen microbial populations of steers fed diets with different concentrate-to-forage ratios

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Journal of Animal Science and Biotechnology 2014年第4期5卷 430-438页

作者： Gengzhi Ding Ying Chang liping Zhao Zhenming Zhou liping ren Qingxiang Meng State Key Laboratory of Animal Nutrition College of Animal Science and TechnologyChina Agricultural University Lallemand biology Technology(Beijing) Co.Ltd.

Live yeast（Saccharomyces cerevisiae） constitutes an effective additive for animal production;its probiotic effect may be related to the concentrate-to-forage ratio（CTFR）.The objective of this study was to assess the effects of ***（SC） on fiber degradation and rumen microbial populations in steers fed diets with different levels of dietary *** Simmental × Local crossbred steers（450 ± 50 kg BW） were assigned to a control group or an SC *** groups were fed the same basal diet but the SC group received SC supplementation（8 × 10^9 cfu/h/d through the ruminal fistula）following a two-period crossover *** period consisted of four phases,each of which lasted 17 d：10 d for dietary adaptation,6 d for degradation study,and 1 d for rumen sample *** the 1^（st） to the 4^（th） phase,steers were fed in a stepwise fashion with increasing CTFRs,i.e.,30：70,50：50,70：30,and 90：*** kinetics of dry matter and fiber degradation of alfalfa pellets were evaluated;the rumen microbial populations were detected using real-time *** results revealed no significant（P〉 0.05） interactions between dietary CTFR and SC for most *** CTFR had a significant effect（P〈 0.01） on degradation characteristics of alfalfa pellets and the copies of rumen microorganism;the increasing concentrate level resulted in linear,quadratic or cubic variation trend for these *** supplementation significantly（P〈 0.05） affected dry matter（DM） and neutral detergent fiber（NDF）degradation rates（c_（DM）,c_（NDF）） and NDF effective degradability（ED_（NDF））.Compared with the control group,there was an increasing trend of rumen fungi and protozoa in SC group（P 〈 0.1）;copies of total bacteria in SC group were significantly higher（P〈 0.05）.Additionally,percentage of Ruminobacter amylophilus was significantly lower（P〈 0.05）but percentage of Selenomonas ruminantium was significantly higher（P〈 0.05） in the SC *** a word,dietary CTFR had a significant effect on

关键词： Concentrate-to-forage ratios In situ Real-time PCR Rumen microorganism Steers

Influences of Cu or Cd on the neurotoxicity induced by petroleum hydrocarbons in ragworm Perinereis aibuhitensis

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Journal of Environmental Sciences 2008年第3期20卷 364-371页

作者： ZHANG Qianru ZHOU Qixing WANG Jing SUN Shulan HUA Tao ren liping Key Laboratory of Terrestrial Ecological Process Institute of Applied Ecology Chinese Academy of Sciences Shenyang 110016 China College of Environmental Science and Engineering Nankai University Tianjin 300071 China North East Agricultural University Harbin 150030 China Kyushu University Fukuoka 8128582 Japan

The ecotoxicological effects of heavy metals and petroleum hydrocarbons （PHCs） on ragworms are still vague. The relationships between toxicological indices （mortality and acetylcholinesterase （ACHE） activity） and concentrations of toxicants （Cu, Cd, and PHCs） were examined in the estuary keystone species Perinereis aibuhitensis in laboratory conditions. The results of single toxicant indicated that three toxicants had potentially physiological toxicity to P. aibuhitensis. The estimated 4-d and 10-d LC50 for Cu, Cd, and PHCs was derived from the relationships between mortality and toxicants concentrations. Notable changes in the morphological signs and symptoms of P. aibuhitensis exposed to PHCs were observed. The ACHE activity of P. aibuhitensis was more sensitive to the toxicity of PHCs than the others. The results of combined toxicants implied that the combined toxicity of Cu or Cd and PHCs to P. aibuhitensis was related to the concentration combination of toxicants. Compared to single PHCs treatment, the addition of Cu or Cd significantly mitigated the neurotoxicity of PHCs to ACHE activity in P. aibuhitensis, which showed an antagonistic effect.

关键词： acetylcholinesterase (ACHE) Perinereis aibuhitensis Cu Cd petroleum hydrocarbons