城市交通网络对工业用地隐性转型的影响机理研究 ——以武汉市为例

研究目的：依据城市工业用地转型的隐性内涵及其驱动理论,探究城市交通网络对工业用地隐性转型的影响机理,以助推城市交通结构优化和工业新型化发展。研究方法：工业用地隐性形态评价模型、核密度估计、地理加权回归模型和对数衰减函数。研究结果：（1）武汉市主城区工业用地隐性转型发展非均衡性较强;（2）武汉市主城区高速路、主干道、次干道、支路对工业用地隐性转型驱动作用显著并存在明显空间异质性;（3）不同等级道路对工业用地隐性转型廊道效应的吸引力差异表现为主干道最高,次干道次之,而铁路、高速公路、支路对其具有排斥作用,工业用地隐性转型受主干道、次干道影响的效应偏好显著。研究结论：为纾困城市工业用地内部结构优化与转型升级,应重点实施内涵建设和差异化空间管控,协同路网结构优化和工业用地隐性转型,以引导经济要素流动为目标优化城市交通网络,创新城市工业用地管控方式。     

论报纸广告市场的开拓与经营

分析了影响报纸广告投放的因素,并着重论述在我国市场经济体制中,如何开拓与经营报纸广告。同时介绍了国外一些报纸广告的运营模式,对我国报业广告的经营提出了一点建议。     

企业核心能力的刚性特征及其超越

自“核心能力”被提出以来，该概念仿佛成了企业的“万能金钥”。然而，我们却不能忽视这一事实，核心能力容易走向其反面，形成刚性。核心能力刚性抑制了企业创新，严重削弱了企业创新的能力。本文首先提出了核心能力刚性的定义，然后分析了核心能力刚性的载体，进而对核心能力刚性的本质即路径依赖现象从三个角度进行了阐述，最后讨论了核心能力刚性特征的克服。     

Effects of Motor Carriers’ Growth or Contraction on Safety: A Multiyear Panel Analysis

Motor carrier safety remains a highly relevant issue for supply chain managers and scholars because carriers’ safety affects supply chains as well as the welfare of the motoring public. This article enriches understanding regarding this topic by investigating how motor carriers’ growth or contraction since the start of the Compliance, Safety, and Accountability (CSA) program in 2010 affects their safety performance. Drawing on core principles from theories regarding internal adjustment costs from economics and nonscale free capabilities from management, we explain why carriers’ growth or contraction should differentially affect various safety metrics tracked by the CSA program. To test our theory, we assemble a multiyear panel data set for over 1,000 of the largest for‐hire motor carriers operating in the United States by melding together several different governmental data sources. We fit a series of multivariate seemingly unrelated regression models to test our hypothesized effects. Our results corroborate our theorized predictions and are robust to alternative model specifications. We conclude by detailing how this work contributes to extant theory, summarizing managerial and policy implications, highlighting limitations, and suggesting directions for further pursuit.     

一种适用于16QAM的自适应阈值载波锁定检测算法

为避免传统16阶正交幅度调制（16-Quardrature Amplitude Modulation，16QAM）载波锁定指示锁定阈值受输入信号电平的影响，提出了一种基于归一化信号高阶矩的16QAM载波锁定检测算法。针对传统基于固定阈值的检测算法在数据不满足均匀分布时失效的情况，提出了一种基于输入数据统计特性的自适应阈值载波锁定检测算法。实验结果和工程应用结果表明，所提出的自适应门限能更好地适应不同数据下的载波锁定检测。该方法已经在某卫星对接试验中得到了应用验证，取得了满意的效果。     

A Multivariate Time‐Series Examination of Motor Carrier Safety Behaviors

Motor carriers’ operational safety affects multiple stakeholders including truck drivers, motor carriers, insurance companies, shippers, and the general public. In this article, I devise and test theory regarding motor carriers’ longitudinal performance for three classes of safety behaviors linked to carriers’ accident rates—Unsafe Driving, Hours‐of‐Service Compliance, and Vehicle Maintenance—tracked by the Federal Motor Carrier Safety Administration as part of the Compliance, Safety, and Accountability (CSA) program. Specifically, I draw on core concepts from sociological agency theory and resource dependency theory to devise middle‐range theory that generates never‐before‐tested hypotheses regarding carriers’ longitudinal safety performance for these classes of safety behaviors after the start of the CSA program. The hypothesized predictions are tested by fitting a series of multivariate latent curve models to four years of panel data for a random sample of 484 large, for‐hire motor carriers operating in the United States. The empirical findings corroborate the theoretical predictions and remain after robustness testing. These findings have important implications for scholars, motor carrier managers, procurers of motor carrier transportation services, and public policy makers.     

基于场域理论视角：网络环境下高校党建创新研究

新形势下场域理论对加强网络党建工作具有较大的启发性。迅速发展的互联网成为与现实教育场域互为对照与补充的隐性教育场域。隐性教育场域下高校要把握主导方向,形成教育合力,形塑场域惯习,激发工作活力,提高网络党建工作水平。     

MSTP在银行系统专线接入中的应用

通过对MSTP在银行系统专线接入中应用的介绍,详细说明了MSTP专线接入方案的应用场景,方案的特点,网管的实现。根据客户的不同带宽需求,无需更换设备就能接入,完成客户的多种业务接入。     

一种高可靠性数据采集系统的设计与实现

本文介绍了一种以电力线载波信道的多路监控楼宇报警系统，系统以89C51为核心，具有安装简单、功能较强、成本低、实用等特点。     

Linking formal controls to motor carrier performance: Curvilinear and interaction effects

We examine the relationships between formal management controls (FMCs)—activity controls and output controls—and motor carriers’ operational and market performance. Using nonlinear structural equation modeling, we identify curvilinear and interaction effects of FMCs on carrier performance. We contribute to theory by providing evidence that the relationships between FMCs and performance are more complex than previously theorized. Namely, excessive activity control will adversely affect market performance, especially when output control is low. However, when output control is high, increasing activity control improves market performance—up to a point. Accordingly, we provide managerial guidance on appropriate levels of FMC use.