Reconstruction and Extension Project of Jianying Park in Meizhou

Founded in 1986, Jianying Park represents a momentous comprehensive park in Meizhou. Recent years have witnessed the rehabilitation and expansion grounded of that park on its original appearance. This paper, on the basis of analyzing and discussing the existing problems of the original park, combines the principles and requirements of urban park landscape design and adds the concept of ecological waters design, so as to integrate the cultural characteristics of Meizhou into Jianying Park. The project adopts user-friendly design in an effort to create a unique scenic spot and all kinds of markers standing for Marshal Ye Jianying.     

多花黑麦草繁殖种与原种产量和品质的比较研究

本文采用随机区组试验设计,对多花黑麦草繁殖后种子与引进原种进行了产量和品质的比较研究.结果表明,繁殖种与原种No1和参照种Abundant在生育特性、鲜干草产量、营养品质和种子产量上均无显著差异.因此,多花黑麦草本地繁殖种子仍然保持了较好的产量和营养品质特性.     

Improved genetic parameter estimations in zoysiagrass by implementing post hoc blocking

Randomized complete block (RCB) design is the most widely used experimental design in biological sciences. As number of treatments increases, the block size become larger and it looses the capacity to control the variance within block, which is its original purpose. A method known as post hoc blocking could be used in these cases to improve the genetic parameter estimation and thus obtain an unbiased assessment of the performance of a given treatment. In trufgrass breeding, as other breeding program, this is a common challenge. The goal of this study was to test the capacity of different post hoc blocking designs to improve the genetic parameter estimation of zoysiagrass (Zoysia spp.). We evaluated two post hoc blocking designs; row–column (R–C) and incomplete block (IB) designs on five genotype trials located in Florida. The results showed that post hoc R–C design had superior model fitting than both the original RCB and the post hoc IB designs when studied at the single measurement level and at the site level. The narrow-sense heritability (0.24–0.40) and the genotype-by-measurement correlation (0.57–0.99) did not change significantly when R–C was compared to the original RCB design. The ranking of the top performing genotypes changed considerably when comparing RCB to R–C design, but the degree depended on the location analyzed. We conclude that the change in the ranking of the top (potentially select individuals) is coming from the better control of intra-block environmental variation, and this could potentially have a significant impact on the breeding selection process.     

Making Good Use of the Situation for Reasonable Optimization-The Sidelight of Planning & Design for Teaching Hospital of Medical Research Institute in Chongqing University

In this paper, taking the project of the Teaching Hospital of Medical Research Institute in Chongqing University, the one of the reconstruction of original building, as an example, the design methods in the course of location, planning and building design as well as detail design under the design principle "Making Good Use of the Situation for Reasonable Optimization" are expounded.     

OPTIMAL DESIGN WITH WHOLE STRUCTURE PARAMETERS OF LOWER PART OF HUGE EXCAVATOR

A optimal design with whole structure parameters and its program are carried out. A reasonable model is established. Using the method a optimal design with whole structure parameters by original parameters of American P&H2300xp excavator was calculated. The size,carried out by the method,approximates to the size of P&H2300xp excavator very well.     

基于原生境的景观温室多肉植物区设计模式研究

通过对中国现有8座典型景观温室的考察发现,景观温室多肉植物区以美学为原理的设计存在一些问题,具体表现为景观特色不突出、景观体验不丰富等。针对这些问题,提出了遵循植物原生境的设计方法,即在设计中模仿多肉植物原生境典型的地形地貌、基质、色彩、植物等特征,据此提出景观温室多肉植物区的生境主题设计模式,旨在为后期景观温室多肉植物区的创新设计提供参考。     

直接接触式换热器传热性能优化

建立了以容积换热系数为目标函数,工质流率U₀、喷头喷孔直径d_i、导热油液位高度Z为决策变量的直接接触式换热器性能优化模型,同时进一步将液滴群行为与传热协同关系作为约束条件引入优化模型中,重点分析该约束条件对优化过程及结果的影响。运用遗传算法对原模型和补充模型进行了优化分析,结果表明：原模型优化后的容积换热系数达到了初始值的6.7倍;而补充模型最优值的迭代次数比原模型减小了约55%,同时最优值比原模型提高了0.3%。所以该约束条件不仅提高了迭代速率,还提高了寻求全局最优值的概率,使得最优解更逼近全局最优值。     

响应面法优化变种米曲霉产木聚糖酶发酵培养基

采用响应面法对木聚糖酶产生菌变种米曲霉(Aspergillus oryzae)RM-503的发酵培养基进行了优化。用Plackett-Burman法(Plackett-Burman Design,P-B)对影响变种米曲霉产木聚糖酶发酵的相关因素进行了评价。筛选有显著效应的2个因素:KH2PO4和ZnSO4.7H2O。在此基础上,采用最陡爬坡路径逼近最大响应区域,利用中心旋转组合设计及响应面分析确定影响木聚糖酶产量的关键因素KH2PO4和ZnSO4.7H2O的最佳水平。经过上述优化,木聚糖酶产量比基本培养条件下提高了1.399倍,达到8.681 U/mL。     

Optimal Design of Street-side Green Spaces: A Case Study of Tiaoshan Cultural Park in Yuncheng City,Shanxi Province

Street-side green spaces are located by urban roads, serving neighboring residents and business population, they are public spaces for citizens working, relaxing and communicating with each other. Landscape design of street-side green spaces is the manifestation of city culture, history and development. Through investigating actual conditions, cultural and historical context, and neighboring traffic of Tiaoshan Cultural Park, this study summarizes deficiencies of the original plant and landscape setting designs, and proposes optimal designs of the park according to the design principles of street-side green spaces.     

The Optimization Design for the Parameters of Capacitor Welding

Through the analysis in this paper,the optimum relation of the discharging current peak interval t m ,the discharging loop equivalent inductance L and equivalent resistance R is obtained.This paper analyze the original discharging loop equivalent inductance L ,which provides an effective method for adjustment and selection of inductance L to realize the optimization energy saving design of the welding machine.     

Plant Landscape Design in River Renovation Based on Site Characte-ristics——A Case Study of Plant Landscape Design in Renovation of Longwanggang River

Plant landscape design in the renovation of Longwanggang River was taken for example to elaborate that plant landscape designs based on site characteristics are mainly demonstrated as "respecting original landforms, considering original plant species, communities and landscapes, exploring proper indigenous plant species". Plant landscapes of Longwanggang River were oriented as riverfront landscape belt with multiple textures, urban portal and ecological corridor, aiming at returning to the nature, integrating environmental resources, achieving large scales and multiple forms. Considering properties of the neighboring plots, functional areas are divided according to different community types and eco-community structure of the plant landscapes, so as to form landscape nodes, highlight overall plant landscape effects, regional characteristics and low maintenance cost.     

Design of the Intelligent Alarm System in Controlling the Automobile Speed

The alarm system in controlling the automobile speed is presented, without change of the original structure, and the design scheme of the system implements sampling, measurement, computing, real-time alarm and delay-time control for the automobile speed according to the safety of the automobile driving. Then, the speed is randomly stored so as to insure the correct data and to effectively analyze the data. Especially, the key techniques of the speed measurement and the refresh storage are pesented in datail in the system.     

Study on the Navigation Flow Condition at Entrance Area of the Ship Approach Channel for Jinghong Power Station on the Lancang River

Based on the model test of Jinghong power station on the Lancang river, the unfavorable navigation condition at entrance area of down approach channel of the ship lift is measured and analyzed for original design scheme of the project, and the open -type guide works is applied to greatly improve the bad flow condition, so as to make the navigation condition better at entrance area.     

The Application of Controlling Excavation Immersed Tube Technology in Active Pipeline Moving Process

Taking an example from Zhong-Wu Lang Ping Valley Gas Pipeline Project, we combined the engineering geological of the site area, and learn from experience in similar projects. Then, on this basis, we carried out the design of the immersed work, introduced the applications of the immersed controlled excavation work. The results show that the immersed controlled excavation work achieved the expected results. Practice shows that the controlled excavation construction not only prevent gravity retaining wall concrete construction disturbance and construction personnel devastation, but also improved the depth of pipeline settlement (original design maximum settlement increased to -1.5m from -1.0m.). The program for Zhong-Wu Lang Ping Valley Gas Pipeline engineering success, and can providing guidance for other similar pipeline project.     

燕麦甜醅加工工艺优化

在传统燕麦甜醅加工的基础上,以脱皮燕麦为原料,通过单因素试验和Box-Behnken设计试验,采用响应面法优化燕麦甜醅的发酵工艺参数,得到最佳加工工艺为:浸泡时间2.0 h,蒸煮时间1.0 h,加曲量2.0 g/kg,发酵温度28.0℃,发酵时间52.5 h,在此工艺参数下加工的燕麦甜醅,具有甜醅特有的色泽、香味,风味柔和,酸甜适口,麦粒分明,有一定咀嚼性,感官评分达到96.1分。     

Urban Design for Continuity of the Urban Context: A Case Study of Landscape Conceptual Design on Both Banks of the Tuojiang River in Luzhou, P. R. China

Luzhou is a famous wine country and a historical city in P. R. China. Insuring the continuity of urban context is an effective method for creating a distinctive image of a city. Considering the authenticity, sustainable development, enforceability and regional differences of urban contexts, it is an appropriate way to extract the original urban context and adopt a proper design method that combines humanized nature, material culture, and intangible culture to form an area with cultural atmosphere on both banks of the Tuojiang River.     

响应面优化绿色木霉产胶霉菌素培养基

采用响应面法旨在优化绿色木霉产胶霉菌素培养基。试验选用Min Run Res IV设计对基础培养基的6个影响因子的效应进行评价,筛选显著影响因子,利用最陡爬坡试验确定其取值中心、中心组合试验确定其最佳取值,从而获得优化培养基。Min Run Res IV试验筛选出4个显著性影响因子：葡萄糖、豆粕、 磷酸二氢钾和硫酸锌,经过最陡爬坡和中心组合试验,响应面分析得到最佳培养基组合为：葡萄糖26.54 g/L、酵母粉10 g/L、豆粕15.72 g/L、磷酸二氢钾0.452 g/L和硫酸锌0.0582 g/L、硫酸亚铁0.1 g/L,在最佳培养基下胶霉菌素效价较优化前提高了59.71%。     

MIRA阶梯背模型尾部非光滑表面优化设计方法

为探索车身非光滑表面特征参数的优化设计方法,在MIRA阶梯背模型尾部分别布置凹坑型、凸包型和沟槽型非光滑表面,进行计算仿真和风洞模型试验对比分析不同非光滑单元的减阻效果。以非光滑单元体间距与高度为设计变量,以模型气动阻力系数为优化目标,采用拉丁超抽样方法进行样本设计,建立Kringing近似模型并检验拟合精度,运用NSGA-II遗传优化算法分别对凹坑型、凸包型和沟槽型非光滑表面特征参数进行优化。对比优化前后流场参数,分析车身非光滑表面减阻的机理。仿真结果和风洞试验数据表明优化后的凹坑、凸包及沟槽型非光滑表面模型的气动阻力均进一步减小,减阻率分别达到6.92%、4.03%、4.24%,减阻效果明显。说明文中所采用的优化设计方法具有一定的有效性和通用性,为车身非光滑表面特征参数优化的后续设计提供参考依据。     

AN IMPROVED METHOD OF CALCULATION FOE UNSYMMETRICAL OPEN CONDUCTOR STATES IN THREE-PHASE POWER SYSTEMS

In this paper, the superposition and compensation theorems are employed to calculate the electric values under the unsymmetrical open conductor states in the three-phase power systems without modifying the bus admittance or the impedance matrices of the original networks. In cotrast with conventional algorithms, the method proposed here is highly accurate, fast, convenient and flexible. It can be applied to the unsymmetrical open conductor calculations which offered in power systems for its design and operation, to determine the settings of relay and automatic deyices, as well as accident analysis.     

响应面法优化巨大芽胞杆菌发酵培养基

为了提高微生物肥料生产菌株——巨大芽胞杆菌1013的发酵产芽孢数量,采用响应面法对其发酵培养基进行优化。首先采用单因子试验筛选出最佳碳源和氮源;然后设计基础培养基,采用Plackett-Burman方法对基础培养基中影响发酵产芽胞数各因素的效应进行评价,筛选出有显著效应的因素;最后通过响应面分析法优化主要因素的最佳浓度。结果表明,最佳碳源为糖蜜,最佳氮源豆饼粉和硝酸铵;基础培养基中对产芽孢数有显著效应的因素为糖蜜和豆饼粉,响应面优化后这2个因素的最佳含量为：糖蜜4.17%,豆饼粉1.53%。采用优化后的培养基进行摇瓶发酵,巨大芽胞杆菌的发酵产芽胞数为(89.34±3.87)×108 cfu/mL,比基础培养基提高了3.35倍。