信息革命对土地分区利用的影响

论述了信息革命对区位理论、区住过程、城市空间布局与职能的实质性影响。     

自由式摔跤跪撑技术组合动作连接方法及其训练

阐述了跪撑组合技术动作的基本形式和技术动作形成的基本要求,结合自由式摔跤的实战要求,介绍了跪撑组合连接技术训练方法与要点.     

UCF Library Express: Planning a Faculty Delivery Service

As it becomes increasingly difficult to demonstrate the worth of the library to the academic community, gate counts and usage statistics are no longer enough. Showing the impact the library has on the community requires planning new services with outcome measurement from the start. This article outlines a project plan for launching a faculty book delivery service at the University of Central Florida's John C. Hitt Library using Rhea Rubin's (2006) Outcome Measurement model. The article reviews the relevant literature, analyzes the current internal and external climate in which the service will be implemented, discusses the logistical aspects of the service such as cost, delivery method, and staffing, and concludes by determining the goals and outcomes of the service based on these factors. This article is the first in a series of three articles that together make up an entire project planning and management document, including planning, marketing, and assessing the service. The plan in its entirety provides an example of how to apply the Outcome Measurement model in an academic library setting.     

矿区地面场景三维建模与可视化研究

文章根据矿区的地面环境特征和实体类型,将矿区地面实体分成点、线、面、体四个部分,以ArcEngine为开发平台、Multipath为三维数据模型,动态建立矿区地面三维场景。云南东川某矿的地面场景的三维建模结果表明,该方法具有较高的精度和逼真性。     

对北京高校体育场馆资源利用现状及影响因素的研究

通过文献资料法、问卷调查法、专家访谈法和数理统计法对北京高校体育场馆资源利用现状及影响因素进行研究。发现北京高校体育场馆资源较为优越 ,开放率很高 ,有偿开放能更好地服务于全民健身运动 ;高校场馆资源的利用与场馆的经济基础、物质基础以及思想意识、管理水平有关 ;资源开发的赢利效果受场馆条件和经营思想两方面的影响     

运动场草坪坪床设计与建造

运动场草坪质量主要取决于其坪床结构及其建造质量。提出了运动场草坪坪床结构设计应遵循的原则,介绍了天然、半天然和人工型3类坪床结构的设计参数,对人工型SWT坪床结构的建造过程做了详细说明,对运动场草坪的草种选择和建植方法做了简要介绍。     

对采煤机行走轮精铣齿形的数控加工编程研究

数控立式加工中心机床对于形状复杂但却有一定规律的零件,如：行走轮,可通过利用数控原理中数学计算,应用宏程序进行编制程序代码,可实现准确的自动加工。提高了产品的精度,加工效率,满足了使用性能的要求。     

In-package P/G planes analysis and optimization based on transmission matrix method

Power integrity （PI） has become a limiting factor for the chip＇s overall performance, and how to place in-package decoupling capacitors to improve a chip＇s PI performance has become a hot issue. In this paper, we propose an improved transmission matrix method （TMM） for fast decoupling capacitance allocation. An irregular grid partition mechanism is proposed, which helps speed up the impedance computation and complies better with the irregular power/ground （P/G） plane or planes with many vias and decoupling capacitors. Furthermore, we also ameliorate the computation procedure of the impedance matrix whenever decoupling capacitors are inserted or removed at specific ports. With the fast computation of impedance change, in-package decoupling capacitor allocation is done with an efficient change based method in the frequency domain. Experimental results show that our approach can gain about 5× speedup compared with a general TMM, and is efficient in restraining the noise on the P/G plane.     

宽阻带小型化低通滤波器的设计

This paper presents a novel low-pass filter （LPF） with sharp rejection, wide stopband and compact size, which are realized by the defected ground structure （DGS） and the defected microstrip structure （DMS）. The equivalent circuit model is proposed and the circuit parameters are extracted by the circuit simulation software. The parameters measured are 3 dB cutoff frequency fc of 5.2 GHz, the insertion loss less than 0.5 dB from DC to 4.0 GHz and S21 less than -20 dB within the wide stopband from 6 GHz to 16 GHz. The results of the circuit optimization agree well with those of the full wave simulation and the measured ones, which validate the effectiveness of the equivalent circuit model. The size of the proposed LPF is decreased compared with normal LPF. This LPF can be applied in rectennas to eliminate high order harmonics.     

地下基坑施工方法与问题的探讨

介绍某地下基坑施工过程中采取的主要施工方法与技术措施,并探讨出现的问题.