Emergency preparedness through game playing

The lack of emergency preparedness in Mauritius has been the cause of many tragedies. Our approach to tackle this problem was by developing an emergency preparedness game layered and fused with a disaster warning and guidance system that emanates clarity to the unfathomable bearings of emergencies and natural disasters. The emergency preparedness game is based on a selection of diverse real life-threatening difficulties that entail different strategies aimed at bettering the survival instincts of users. It uses story-telling scenarios along with in-game footnotes that yield directives on how to brave fierce and unpredictable calamities. The game reinforces a sense of self-composedness and suppressing untimely fears of users in horrendous circumstances. With regard to the warning system, it unremittingly feeds users with notifications during emergencies, that encases shortest escape routes to lead them to safe locations via a fully functional GPS map. This application brings some novelties that are virtually non-existent in related applications. For instance, this application includes a warning and guidance system, a 3D scenario game to prepare its users for disasters, an interactive survival toolkit selection, an SMS rescue feature and a mass notification system via the web.     

Improving pedestrian safety using combined HOG and Haar partial detection in mobile systems

Objective: The objective of this study is to develop a novel algorithm on a mobile system that can warn drivers about the possibility of a collision with a pedestrian. The constraints of the algorithm are near-real-time detection speed and a good detection rate.

Method: Histogram of gradients (HOG)-based detection is widely used in pedestrian safety applications; however, it has low detection speed for real-time systems. Hence, it has no direct usage for mobile systems. In order to achieve near-real-time detection speed, partial Haar transform predetections are applied to an image before HOG detection. The partial and HOG detections are merged and a score-based confidence level is defined for the final detection phase. In this way, the outcome is prioritized and different warning levels can be issued to warn the driver before a possible pedestrian collision.

Results: The proposed algorithm provides an increase in detection speed (from 46 to 76 fps) and detection rate (from 80 to 91%) with respect to HOG-based pedestrian detection. It also improves confidence of the results by multidetection merging and score assignment to detections.

Conclusions: Performance improvement of the algorithm is compared with respect to state-of-the-art detectors/algorithms. Based on the detection rate and detection speed performance, it can be concluded that the proposed algorithm is suitable to be used for mobile systems to warn drivers about the possibility of collision with a pedestrian.     

上海市松江镇饮用水水源区的保护与环境管理方案

保护集镇饮用水河流是当前水污染防治工作的重点。本文通过现状分析，针对城乡结合部河流以面源为主的特点，找出影响饮用水河流水质的主要污染源及污水排放特征．用系统分析方法，将集镇的经济、人口、环境统计资料作为环境管理模型的主要输入信息，经计算机仿真，得出保护水源水质应采取的对策与治理方案。     

盾壳霉CCTCC M203020的生长特性及其应用潜力

以油菜菌核病病株菌核为诱饵，从油菜地中分离筛选得到一株盾壳霉(Coniothyrium minitans CCTCC M203020)．以生物防治能力好的CBS148．96为对照菌株，比较了两者在油菜叶上对油菜菌核病菌抑制作用和在土壤中对菌核的致腐能力及条件．结果表明：C．minitans CCTCC M203020对油菜菌核病菌的抑制作用及适用的pH范围(4．0～7．0)均优于CBS148．96，适片于油菜菌核病的生物防治．具体表现在：(1)C．minitans CCTCC M203020能够完全限制病原菌在叶面的进一步扩展(已萌发孢子率为800A时)，而CBS148．96则不能；(2)C．minitaras CCTCC M203020与CBS148．96的生长特性及培养条件相近，但其菌体生长和孢子产量分别高出60％和12％，并发现该菌株在PDA上产生孢子的最短周期是3．5～4d，较优培养条件为：20℃、初始pH5．0～6．2、空气湿度90％～97％；敛腐菌核的较优条件为：10^1～10^4孢子／菌核，土壤湿度80％～100％，pH4．0～7．0，图7参19     

易燃、易爆重大危险源评价的计算机系统设计

论述了重大危险源评价模型用计算机实现的方法和技术,给出了评价系统的模块划分及部分算法的编程技巧,列举了用此算法建立的计算机评价系统的部分运行示例     

ANALYSIS OF NITROGEN MANAGEMENT STRATEGIES USING EPIC1

ABSTRACT: This paper illustrates a method of using a hydrologic/water quality model to analyze alternative management practices and recommend best management practices (BMPs) to reduce nitrate-nitrogen (NO₃^--N) leaching losses. The study area for this research is Tipton, an agriculturally intensive area in southwest Oklahoma. We used Erosion Productivity Impact Calculator (EPIC), a field-scale hydrologic/water quality model, to analyze alternative agricultural management practices. The model was first validated using observed data from a cotton demonstration experiment conducted in the Tipton area. Following that, EPIC was used to simulate fertilizer response curves for cotton and wheat crops under irrigated and dryland conditions. From the fertilizer response functions (N-uptake and N-leaching), we established an optimum fertilizer application rate for each crop. Individual crop performances were then simulated at optimum fertilizer application rates and crop rotations for the Tipton area, which were selected based on three criteria: (a) minimum amount of NO₃^--N leached, (b) minimum concentration of NO₃^--N leached, and (c) maximum utilization of NO₃^--M. Further we illustrate that by considering residual N from alfalfa as a credit to the following crop and crediting NO₃^--N present in the irrigation water, it is possible to reduce further NO₃^--N loss without affecting crop yield.     

A PRELIMINARY ANALYSIS OF ANIMAL MANURE DISTRIBUTION IN MICHIGAN FOR NUTRIENT UTILIZATION1

ABSTRACT: Proper management of animal manure is crucial to the viability of the U.S. animal industry and the quality of the environment. This paper analyzes the animal manure distribution in Michigan, identifies counties with high potential for land application of manure nutrients, and proposes a manure distribution prototype model for transporting surplus manure beyond individual farms for nutrient utilization. Tabulations of animal numbers by county and by 5-digit zip code are used to identify areas with greater potential for land application of manure nutrients. Distribution of the manure nutrients from surplus areas to the nutrient utilization areas is explored in a selected watershed by taking into account manure nutrient value, soil nutrient content, crop nutrient needs, topography and hydrography. The results indicate that by appropriate planning and collaboration transport of the excessive animal manure to suitable crop fields is an appealing alternative to utilize the manure nutrients while minimizing the adverse environmental impact. Further studies are needed to determine the necessary economic and institutional programs to implement the export of the manure at the regional level.     

谷氨酸生产废水的治理工程实例

本文对谷氨酸生产废水和味精生产废水的性质作了简要介绍，针对该类废水提出了蒸发浓缩＋接触氧化为核心的治理工艺。结果表明，经该处理工艺，废水中的COD、BOD5、NH3-N等指标均能够达到《味精工业污染物排放标准》（GB19431—2004）中的标准要求。工艺流程简便可行，效果明显。在实际中有较大应用前景，具有显著的环境和经济效益。本文重点介绍了工程的实际运行情况和运行成本，并进行了简要分析。     

冲压模CAE技术及软件选型方法

综述了国内外常用冲压模具CAE分析软件的内容和种类 ,从实用角度讨论了CAE系统应用中诸如规划、软件选型、人员培训、应用推广等问题 ,对其选型和实施方法作了重点介绍     

我国不锈钢制品与铝制品行业进展与趋势

对不锈钢制品和铝制品行业的进展进行了分析 ,并对其发展趋势进行了预测