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International Journal of Biomathematics 2014年第6期7卷 209-221页

作者： Kai Wang yanling zhu Department of Applied MathematicsAnhui University of Finance and Economics Bengbu 233030 P. R. China School of International Trade and EconomicsUniversity of International Business and Economics Beijing 100029 P. R. China

In this paper, by utilizing the comparison theorem and constructing a suitable Lyapunov functional the predator prey model with modified Leslie-Gower Holling-type II schemes and a deviating argument is studied. Some sufficient conditions are obtained for uniform persistence and global attraztivity of positive periodic solutions for this model. Furthermore, an example shows that the obtained criteria are easily verifiable.

关键词： Holling-type II schemes positive periodic solution uniform persistence Lyapunov functional.

Dynamics of a stochastic predator-prey model with mutual interference

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International Journal of Biomathematics 2014年第3期7卷 51-72页

作者： Kai Wang yanling zhu Department of Applied MathematicsAnhui University of Finance and Economics Bengbu 233030 P. R. China

In this paper, a stochastic predator-prey （PP） model with mutual interference is considered. Some sufficient conditions for the existence of globally positive solution, non- persistence in the mean, weak persistence in the mean, strong persistence in the mean and almost surely extinction of the the model are established. Moreover, the thresh- old between weak persistence in the mean and almost surely extinction of the prey is obtained. Some examples are given to show the feasibility of the results by numeri- cal simulation. It is significant that such a model is firstly proposed with stochastic perturbation.

关键词： Stochastic predator-prey model Brownian motion pathwise estimation persistence extinction.

PERIODIC SOLUTION FOR p-LAPLACIAN DIFFERENTIAL EQUATION WITH A DEVIATING ARGUMENT

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Annals of Differential Equations 2007年第1期23卷 119-126页

作者： zhu yanling Lu Shiping Dept. of Statistics and Applied Math. Anhui University of Finance and Economics Bengbu 233000 Anhui Dept. of Math. Anhui Normal University Wuhu 241000 Anhui

By using the theory of coincidence degree, we study a kind of periodic solution to p-Laplacian differential equation with a deviating argument such as （φp（x＇（t）））＇＋ f（x（t））＋ g（x（t - τ（t））） = e... 详细信息

关键词： deviating argument periodic solution theory of coincidence degree

Simultaneous adsorption of lead and cadmium on MnO_2-loaded resin

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Journal of Environmental Sciences 2010年第2期22卷 225-229页

作者： Lijing Dong,Zhiliang zhu,Hongmei Ma,yanling Qiu,Jianfu ZhaoState Key Laboratory of Pollution Control and Resource Reuse,Tongji University,Shanghai 200092,China State Key Laboratory of Pollution Control and Resource Reuse Tongji University Shanghai 200092 China

MnO2-10aded D301 weak basic anion exchange resin has been used as adsorbent to simultaneously remove lead and cadmium ions from aqueous solution. The effects of adsorbent dosage, solution pH and the coexistent ions on the adsorption were investigated. Experimental results showed that with the adsorbent dosage more than 0.6 g/L, both Pb^2＋ and Cd^2＋ were simultaneously removed at pH range 5-6. Except for HPO4^2-, the high concentration coexistent ions such as Na^＋, K^＋, Cl^-, NO3^-, SO4^2- and HCO3^-, showed no significant effect on the removal efficiency of both Pb^2＋ and Cd^2＋ under the experimental conditions. The coexistence of Mg^2＋, Ca^2＋ caused the reduction of Cd^2＋ removal, but not for Pb^2＋. The adsorption equilibrium for Pb^2＋ and Cd^2＋ could be excellently described by the Langmuir isotherm model with R^2 〉 0.99. The maximum adsorption capacity was calculated as 80.64 mg/g for Pb^2＋ and 21.45 mg/g for Cd^2＋. The adsorption processes followed the pseudo first-order kinetics model. MnO2-loaded D301 resin has been shown to have a potential to be used as an effective adsorbent for simultaneous removal of lead and cadmium ions from aqueous solution.

关键词： MnO2-loaded resin adsorption cadmium lead simultaneous removal

Distinguishing the Effects of Cryosphere Change in the Background of Climate Change in China

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Research in Cold and Arid Regions 2010年第1期2卷 87-92页

作者： LiHua Zhou yanling zhu XiKe Sun Key Laboratory of Desert and Desertification CoM and Arid Regions Environmental and Engineering Research Institute Chinese Academy of Sciences Lanzhou Gansu 730000 China

Climate change has major impacts directly on the natural ecosystem and human society, of which the cryosphere is most easily affected be-cause of its frangibility and sensitivity. Similarly, cryosphere change has numerous impacts on the natural ecosystem and human society, which may resemble an indirect influence of climate change. These two types of impacts, in shared fields, are distinguished in space and time by effective mechanisms and processes. Climate change has positive and negative impacts on some systems, which may be adjusted by cryosphere change. These indirect and direct impacts may be distinguished, and then correct policies and measures can be made against these changes.

关键词： cryosphere change climate change indirect impact direct impact distinguish

Folded technique of self-adherent wrap improves clinical outcomes for wounds after orbital tumour extirpation:a single-center,prospective randomized controlled trial

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Annals of Eye Science 2021年第2期6卷 11-18页

作者： Huijing Ye Xiufen Lian Rongxin Chen yanling zhu Jingxia Huang Hongbin Chen Ling Xie Wenjun Guo Huasheng Yang State Key Laboratory of Ophthalmology Zhongshan Ophthalmic CenterSun Yat-sen UniversityGuangzhouChina

Background:Using a randomized controlled trial(RCT),to assess the efficacy of the folded technique of self-adherent wrap to eyes after orbital tumour extirpation and compare it with the classic ***:A single-centre,prospective,randomized,controlled study was conducted among 128 patients who underwent orbital tumour extirpation in this *** folded and classic techniques of applying self-adherent wraps were randomly allocated to patients(1:1).The primary endpoint was the interface pressure on the affected *** efficacy endpoints were the interface pressure above and below the ear of the affected side,above the ear of the non-affected side,and discomfort *** complications were observed for 24 ***:The interface pressure with the folded technique on the affected eye was neither inferior nor superior to the classic technique(1.33±0.07 vs.1.41±0.09 mmHg,P=0.480).Most importantly,the pressure at three other points outside of the affected eye,including above and below the ear of the affected side,and above the ear of the non-affected side,were significantly higher when using the classic technique than when using the folded technique(P=0.041,0.019,and 0.047,respectively).Discomfort scores were higher in the classic technique group than in the folded technique group(2.93±0.30 vs.1.52±0.19,P≤0.001).Conclusions:Findings demonstrated the advantages of using folded technique to apply self-adherent wrap for wounds after orbital tumour extirpation with lower interface pressure outside of the affected eye and patient discomfort scores,without influencing pressure on the affected eye comparing with the classic technique.

关键词： Techniques self-adherent wrap orbital wound interface pressure patient discomfort

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《电影艺术词典》修订版研讨会纪要

当代电影 2006年第4期 130-134页

作者：朱彦玲中国电影出版社北京电影学院中国文学艺术界联合会北京电影学院·电影管理系北京电影学院·科研设备处

2006年3月21日,在中国电影家协会学术会议厅,中国电影出版社举行了'修订版研讨会',中国文联、中国电影家协会领导,以及电影界、教育界专家、学者、教授和影视、报刊相关媒体记者等三十多人参加会议.会议气氛热烈.大家从不同角度、不同... 详细信息

2006年3月21日,在中国电影家协会学术会议厅,中国电影出版社举行了'修订版研讨会',中国文联、中国电影家协会领导,以及电影界、教育界专家、学者、教授和影视、报刊相关媒体记者等三十多人参加会议.会议气氛热烈.大家从不同角度、不同层面对这一版学术贡献、理论价值进行深入探讨,并提出一些宝贵的批评意见.下面是根据录音整理出的重点内容.

关键词：中国电影出版社学术会议媒体记者学术贡献批评意见《电影艺术词典》

高保真中子输运程序HNET共振计算方法研究

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哈尔滨工程大学学报 2023年第5期44卷 808-814页

作者：朱雁凌郝琛张乐瑞哈尔滨工程大学核安全与仿真技术重点学科实验室黑龙江哈尔滨150001 清华大学核能与新能源技术研究院北京100084

为实现精细化中子物理计算程序HNET高效、精确的共振计算,本文基于自主开发的HDF5格式多群数据库研究并优化了子群共振计算方法。针对子群参数的计算,研究并实施了经调整拟合点方法优化后的帕德近似法,以保证子群参数计算的准确性;为提... 详细信息

为实现精细化中子物理计算程序HNET高效、精确的共振计算,本文基于自主开发的HDF5格式多群数据库研究并优化了子群共振计算方法。针对子群参数的计算,研究并实施了经调整拟合点方法优化后的帕德近似法,以保证子群参数计算的准确性;为提高计算效率,需解决传统子群方法频繁调用中子输运求解器的问题,采用等效单共振群方法,并对共振核素进行分组,只对每组的代表性核素进行固定源方程求解。基于上述方法,开发了HNET共振计算模块,并针对典型基准例题进行分析验证。数值结果表明:优化后的子群方法能在保证计算效率的前提下,具有较高的计算精度。

关键词：共振自屏计算子群方法优化子群参数子群固定源方程帕德近似法等效单共振群方法 Bondarenko迭代方法

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Effect of daidzein on milk yield,components of milk and hormones in serum of dairy cows

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Agricultural Science & Technology 2006年第2期7卷 9-13页

作者： zhu Heshui Wang yanling Yang Guoyu Wang Yueying Hart Liqiang College of Animal Husbandry and Veterinary Henan Agricultural University Zhengzhou 450002 China

Four Holstein dairy cows in the 7th month of late lactation were sampled, and self-control method was used. Daidzein was added to the concentrated feed at the dose of 10mg/kg during the treatment stage. Results showed that daidzein lessened the declining tendency of milk yield in late lactation and increased the milk yield to some extents. Lactoprotein was evidently increased (P<0.01), while milkfat was not affected evidently. The level of T4 in serum was evidently increased (P<0.05); the levels of GH, PRL, E2 and TSH in serum were prone to rising while T3 was prone to decreasing . It was concluded that daidzein could indirectly affect milk yield and components of milk by regulating the levels of intrinsic hormones.

关键词： daidzein cow milkyield components of milk serum hormone

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美国公共图书馆青少年阅读推广的特点及启示

图书馆 2023年第4期 49-54,61页

作者：朱燕玲北碚图书馆重庆400700

为进一步推动我国公共图书馆青少年阅读推广的发展,提升其服务效能,文章总结了美国公共图书馆青少年阅读推广具有图书馆高度重视、推广内容全面以及推广活动多样性等特点,并借鉴其实际做法,以阅读推广要素论为依据,采用内容分析法,选取... 详细信息

为进一步推动我国公共图书馆青少年阅读推广的发展,提升其服务效能,文章总结了美国公共图书馆青少年阅读推广具有图书馆高度重视、推广内容全面以及推广活动多样性等特点,并借鉴其实际做法,以阅读推广要素论为依据,采用内容分析法,选取纽约公共图书馆、洛杉矶公共图书馆和芝加哥公共图书馆为案例,探讨其阅读推广的目的、内容及活动,以期为我国公共图书馆青少年阅读推广提供启示。

关键词：公共图书馆青少年阅读推广美国