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Nickel accumulation and its effects on the survival rate of Spodoptera litura Fabricius under continuous nickel stress

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Chinese Science Bulletin 2007年第14期52卷 1957-1963页

作者： SUN hongxia SHU YingHua tang WenCheng WANG Qi ZHOU Qiang ZHANG GuRen State Key Laboratory for Biological Control & Institute of Entomology Sun Yat-sen University Guangzhou 510275 China

The artificial diets mixed with various concentrations of nickel were offered to the larvae of the phytophagous insect Spodoptera litura Fabricius for 3 generations. Nickel accumulations in the 6th instar larvae, pupae and newly emerged adults of the corresponding generations of S. litura were investigated by Inductively Coupled Plasma-Atomic Emission Spectrometer (ICP-AES), and the effects of nickel accumulations on the survival rate of S. litura were also evaluated by individual rearing. The results showed that nickel accumulated in the 6th instar larvae, pupae and adults of S. litura, and the accu- mulated nickel in all the tested developmental stages within a generation increased with the increase of the nickel doses in the treated diets and showed significant dose-dependent relationship with the nickel doses in the artificial diets. The results also indicated that the nickel accumulations in the 6th instar larvae, pupae, and newly emerged adults from the 3rd generation were higher than those from the 2nd generation, which were also higher than those from the 1st generation. Nickel concentrations in pupae and adults were significantly lower than those in larvae, which indicated that the excessive nickel might be excreted during metamorphosis. Furthermore, larval survival rate, pupation rate and eclosion rate of S. litura in the tested three generations all decreased with the increase of the nickel doses in the treated diets.

关键词：镍蓄积重金属昆虫食草动物

Metallothionein expression induced by nickel accumulation in the midgut of Spodoptera litura Fabricius larvae exposed to nickel

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Chinese Science Bulletin 2007年第23期52卷 3227-3232页

作者： SUN hongxia ZHOU Qiang tang WenCheng SHU YingHua ZOU ZhiWen ZHANG GuRent State key laboratory for Biological Control & Institute of Entomology Sun Yat-sen University Guangzhou 510275 China

Metallothionein expression induced by nickel accumulation in the midgut of Spodoptera litura Fabri- cius larvae was investigated by exposing S. litura larvae to the artificial diets amended with different doses of nickel for 3 generations. Nickel accumulations in the midgut of 6th instar larvae were detected by Inductively Coupled Plasma-Atomic Emission Spectrometer (ICP-AES), and the induced metal- lothionein expression in the midgut of 5th and 6th instar larvae in 120 h were quantified using cad- mium-hemoglobin total saturation methods. The accumulated nickel in the midgut of the 6th instar larvae within a generation increased with the increase of the nickel doses in the treated diets and showed significant dose-dependence with the nickel doses in diets. Metallothioneins induced by nickel accumulated in the larval midgut also increased with nickel doses in diets and with the increasing stressing time in a generation. Results also suggested that the metallothionein expression was differ- ent with the time of S. litura larvae stressed by nickel.

关键词：镍元素亲金属蛋白质中肠物质积累

Study on Sealing Characteristics of Sliding Seal Assembly of Aircraft Hydraulic Actuator

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Instrumentation 2024年第1期11卷 18-29页

作者： Weinan Li Saixin Shi hongxia tang Liang Chen Jiawei Zhang Hao tang Jianhua Zhao Shijiazhuang Haishan Industrial Development Corporation Shijiazhuang 050200 China Heavy Machinery Fluid Power Transmission and Control Laboratory Yanshan UniversityQinhuangdao 066004China

The hydraulic actuator,known as the"muscle"of military aircraft,is responsible for flight attitude adjustment,trajectory control,braking turn,landing gear retracting and other actions,which directly affect its flight efficiency and ***,the sealing assembly often has the situation of over-aberrant aperture fit clearance or critical over-aberrant clearance,which increases the failure probability and degree of movable seal failure,and directly affects the flight efficiency and safety of military *** this paper,the simulation model of hydraulic actuator seal combination is established by ANSYS software,and the sealing principle is *** change curve of contact width and contact pressure of combination seal under the action of high-pressure fluid is *** effects of different oil pressure,fit clearance and other parameters on the sealing performance are ***,the accelerated life test of sliding seal components is carried out on the hydraulic actuator accelerated life test rig,and the surface morphology is compared and *** research shows that the O-ring is the main sealing element and the role of the check ring is to protect and support the O-ring to prevent damage caused by squeezing into the fit clearance,so the check ring bears a large load and is prone to shear *** fit clearance is the main factor affecting the damage of the check ring,and the damage parts are mainly concentrated at the edge of the sealing *** paper provides a theoretical basis for the design of hydraulic actuator and the improvement of sealing performance.

关键词： hydraulic actuator contact stress sealing characteristics maximum shear stress

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BIM情境下综合设施管理组织合作关系提升路径选择

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系统工程理论与实践 2020年第9期40卷 2406-2417页

作者：汤洪霞曹吉鸣邵志国青岛理工大学管理工程学院青岛266520 同济大学经济与管理学院上海200092 同济大学可持续发展与新型城镇化智库上海200092

针对BIM情境下综合设施管理组织合作关系,提出一种基于NK模型的提升路径选择方法.首先,通过理论分析与文献梳理,采用问卷调查法与因子分析法,识别BIM情境下综合设施管理组织合作关系的影响因素.其次,结合影响因素重要度评估问卷调查、... 详细信息

针对BIM情境下综合设施管理组织合作关系,提出一种基于NK模型的提升路径选择方法.首先,通过理论分析与文献梳理,采用问卷调查法与因子分析法,识别BIM情境下综合设施管理组织合作关系的影响因素.其次,结合影响因素重要度评估问卷调查、统计分析及DEMATEL方法,分析影响因素之间的关联情形,进而提取BIM情境下影响综合设施管理组织合作关系的关键要素.再次,利用随机分布函数为影响综合设施管理组织合作关系的多种关键要素选择组合结果随机分配适应度值,并依此绘制出对应的适应度景观图,结合适用的"攀爬方式",利用Matlab仿真技术对BIM情境下综合设施管理组织合作关系提升路径进行优选.最后,通过实例分析验证该方法的可用性和有效性.

关键词：建筑信息模型综合设施管理组织合作关系影响因素 NK模型

One-Dimensional Modulational Instability of Broad Optical Beams In Photorefractive Crystals with Both Linear and Quadratic Electro-Optic Effects

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激光与光电子学进展 2024年第5期61卷 397-403页

作者： Hao Lili Wang Zhen tang hongxia Zhang Xiaoyang Yang Qi Wang Qiang Department of Physics College of physics and Electronic EngineeringNortheast Petroleum UniversityDaqing 163318HeilongjiangChina Department of Physics College of Electrical EngineeringSuihua UniversitySuihua 152000HeilongjiangChina

We present a theoretical study of the one-dimensional modulational instability of a broad optical beam propagating in a biased photorefractive crystal with both linear and quadratic electro-optic effects(Kerr effect)under steadystate ***-dimensional modulational instability growth rates are obtained by treating the space-charge field equation globally and *** theoretical reasoning and numerical simulation show that both the global and local modulational instability gains are governed simultaneously by the strength and the polarity of external bias field and by the ratio of the intensity of the broad beam to that of the dark *** a strong bias field,the results obtained using these two methods are in good agreement in the low spatial frequency ***,the instability growth rate increases with the bias field,and the maximum instability growth occurs when ratio of light intensity to dark irradiance is 0.88.

关键词： nonlinear optics photorefractive effects spatial soliton modulational instability

基于有向加权网络的设施管理综合服务商评选模型

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同济大学学报（自然科学版） 2020年第3期48卷 463-470页

作者：曹吉鸣汤洪霞田哲同济大学经济与管理学院上海200092

提出基于有向加权网络的设施管理(FM)综合服务商评选模型。在对设施管理供应商进行分级处理的基础上,明晰多级供应商评价指标体系和企业合作性程度评价指标体系,并分别用于设施管理供应商网络点权和边权评价。通过基于层次分析法(AHP)... 详细信息

提出基于有向加权网络的设施管理(FM)综合服务商评选模型。在对设施管理供应商进行分级处理的基础上,明晰多级供应商评价指标体系和企业合作性程度评价指标体系,并分别用于设施管理供应商网络点权和边权评价。通过基于层次分析法(AHP)的模糊综合评价法对设施管理供应商有向加权网络点权、边权进行赋值,构建设施管理多级供应商选择模型,并采用最短路径法对模型进行求解。最后,通过案例模拟验证了模型的实用性和可操作性。

关键词：设施管理(FM) 服务供应商有向加权网络

激活PI3K-δ综合征合并关节炎1例并文献复习

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临床儿科杂志 2018年第11期36卷 858-861页

作者：唐红霞尹薇华中科技大学同济医学院附属武汉儿童医院风湿免疫科湖北武汉430016

目的探讨PIK3CD基因突变所致激活PI3K-δ综合征(APDS)合并关节炎的临床特点及诊断和治疗。方法回顾分析1例确诊APDS合并关节炎患儿的临床资料,并复习相关文献。结果患儿,男,4岁10个月,因肝、脾、淋巴结肿大,咳嗽伴发热就诊。既往有反复... 详细信息

目的探讨PIK3CD基因突变所致激活PI3K-δ综合征(APDS)合并关节炎的临床特点及诊断和治疗。方法回顾分析1例确诊APDS合并关节炎患儿的临床资料,并复习相关文献。结果患儿,男,4岁10个月,因肝、脾、淋巴结肿大,咳嗽伴发热就诊。既往有反复呼吸道感染病史。IgG<0.07 g/L,IgA<0.26 g/L,IgM 1.78 g/L。CD19^+B细胞和CD 4^+T细胞数量减少及CD4^+/CD 8^+比例倒置,考虑为原发免疫缺陷病。基因检测示PIK3CD基因c.G3061:p.E1021K点突变,为杂合突变,确诊APDS。住院期间患儿出现双膝关节肿胀,左侧明显,不能行走。给予静脉注射免疫球蛋白及口服萘普生后关节肿痛明显缓解,能独立行走。结论APDS患儿可能会出现关节炎。

关键词：原发免疫缺陷病激活PI3K-δ综合征关节炎基因

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聚合物基全息光栅对乙醇响应性能研究

实验技术与管理 2019年第7期36卷 62-65,71页

作者：唐红霞于丹绥化学院电气工程学院黑龙江绥化152000 天津理工大学理学院天津300384

为实现乙醇类有机蒸气的探测,多孔沸石纳米粒子被掺杂进入有机光敏聚合物材料,并研制出新型光栅。实验测试了反射式与透射式全息光栅的光谱及光栅强度的响应特性。波长发生蓝移是由于蒸气分子渗透导致的平均折射率降低,光谱发生红移是... 详细信息

为实现乙醇类有机蒸气的探测,多孔沸石纳米粒子被掺杂进入有机光敏聚合物材料,并研制出新型光栅。实验测试了反射式与透射式全息光栅的光谱及光栅强度的响应特性。波长发生蓝移是由于蒸气分子渗透导致的平均折射率降低,光谱发生红移是由于材料的膨胀导致光栅间距增加。可逆性实验结果证实,对于有机蒸气,该全息光栅是完全可逆的,能够用于多次重复测量。聚合物基全息光栅能够于演示实验教学,使学生了解全息光学的应用。

关键词：聚合物全息光栅光栅衍射乙醇

线性和二次电光效应下小振幅相干耦合空间孤子对（英文）

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红外与激光工程 2019年第A1期48卷 41-48页

作者：郝利丽王强唐红霞牟海维赵远东北石油大学物理系黑龙江大庆163318 绥化学院电气工程学院黑龙江绥化152000 哈尔滨工业大学物理系黑龙江哈尔滨150001

研究了线性和二次电光效应共存的单光子光折变介质中小振幅情况下两个沿同一直线传播的空间光孤子间的相干耦合现象。研究结果表明在适当的条件下可以形成相干耦合暗-暗、亮-亮孤子对,得到了相干耦合孤子对的光场方程、解析解和孤子对... 详细信息

研究了线性和二次电光效应共存的单光子光折变介质中小振幅情况下两个沿同一直线传播的空间光孤子间的相干耦合现象。研究结果表明在适当的条件下可以形成相干耦合暗-暗、亮-亮孤子对,得到了相干耦合孤子对的光场方程、解析解和孤子对宽度的表达式。线性和二次电光效应间的相互作用而产生相互增强、减弱甚至抵消的光折变效应对这些孤子对的形成、性质和传输规律具有重要的影响。另外,就两相干入射光的初始相位差、强度比和外加电场等三个因素对小振幅相干耦合孤子对的产生条件和性质的影响进行了详细的讨论。最后,采用微扰法分析了小振幅情况下亮-亮孤子对的自偏转效应。

关键词：非线性光学光折变空间光孤子相干耦合电光效应