浅谈企业应收账款的风险管理

文章指出,面对日益激烈的市场竞争,安全有效地管理应收账款是企业在发展过程中必须具备的条件。如何有效地控制应收账款的增长,已成为企业管理和关系到企业生死存亡的重要议题。     

水泥混凝土桥面铺装质量病害研究

我国的水泥混凝土桥面铺装在使用过程中均出现了各种不同类型的早期病害,这些病害严重影响了水泥混凝土桥面的通行质量。本文通过对水泥混凝土桥面铺装的力学特性及病害原因分析,并结合谷竹高速工程的实施,提出了水泥混凝土桥面铺装的施工全过程的技术要求和工艺要点,为提高水泥混凝土桥面耐久性和使用寿命提供参考。     

Improved portable circular power saw safety performance through riving knife design modification

Abstract

This study on portable circular power saw safety focused on body contact with an under-work protruding blade. Three guard were evaluated relative to injury severity, including two innovations and an unguarded saw with below-work configuration typically identical to one with a riving knife. Innovations consisted of riving knife modifications, including an ‘extended’ riving knife or ‘riving ring’, and a riving ring plus outrigger. Injury severity was simulated using human finger prostheses as test specimens.

Thirty single-specimen trials were conducted per experimental setup. For each trial the experimenter operated the saw, simulating a woodworking cut. An assistant fed specimens into the blade contact zone. After 90 trials, two medical raters ranked simulated severities using a five-level classification. Severities for riving ring plus outrigger proved significantly less than for a riving ring alone, which in turn caused significantly less severe injuries than a riving knife.

On the basis of severity level frequencies, it was concluded that the riving ring plus outrigger, which produced no injuries, represents the safest alternative tested. A riving ring without outrigger, which produced a significant number of minor injuries, represents minimally acceptable guarding.

The conventional riving knife, which generated significantly more finger-contact mutilation incidents than the other designs, was the most dangerous configuration. The research results do not detract from the significant benefits of riving knives relative to kickback prevention. However, both modified riving knife designs also possess identical kickback-prevention features.     

外墙饰面砖返碱防治方法

传统的外墙饰面砖施工方法是用水泥浆黏结和填缝,由于材料、施工等因素的影响,瓷砖出现返碱现象,极大地破坏了建筑装饰效果。文章分析了瓷砖返碱的成因,并提出相应的预防措施。     

Pedestrians: the daily underestimated victims on the road

Traffic-related pedestrian injuries (TRPI) are vulnerable to road users. In this study, we aimed to evaluate the demographic pattern of injury and outcome of TRPI. Patients with TRPI admitted between November 2007 and March 2010 to the only level 1 trauma centre in Qatar were included. A retrospective analysis was based on medical records and Emergency Medical Services run sheets. The spreadsheet included demographic data and pre-hospital transport, service admissions and injuries by system and mortality. Of 4077 patients who were admitted, 420 (10.3%) had TRPI. The mode of transportation included ambulances (91%), private vehicles (6%) and helicopters (3%). The direct dispositions were trauma intensive care units (38%), surgical wards (42%) and operating rooms (17%). Patients were classified according to Injury Severity Score (1–8 in 28%, 9–15 in 25%, 16–24 in 20% and 25–75 in 17% cases). Multisystem injuries were most characteristic. Of 804 injures, injury of extremities was predominant followed by head, thorax and abdomen. The overall mortality was 8%. Pedestrian injuries are a significant cause of serious trauma in Qatar. Motor vehicle/pedestrian interface contributes to this ongoing public health problem. Reducing pedestrian trauma requires recognition of the problem and implementing programmes to mitigate these largely preventable injuries.     

河蟹养殖纤毛虫病的诊断与防治技术

近年来,河蟹池塘养殖发展较快,由于养殖规模和放养密度的不断扩大,从而造成池水过肥,水质恶化,有机物含量过高,导致河蟹纤毛虫病呈多发趋势。纤毛虫是河蟹养殖过程中常发生的一种寄生虫病,该病死亡率极高,在河蟹的各个生育期均可造成危害。根据近几年来的工作实践经验,在此记述了纤毛虫病的发病症状,分析发病原因,并提出了综合防治技术的一些措施,以期为各养殖生产者防止此病提供参考。     

被害人承诺刍议

被害人承诺作为正当化行为理论中的问题之一，在各国刑法中都得到普遍认同。但是，我国刑法理论界在这方面的研究尚不充分。本文试从宏观角度对被害人承诺问题加以阐述，从而探求该问题的发展演变。     

农村消防工作的现状分析与对策

本文通过对农村消防现状进行分析,阐明农村火灾发生的原因,并针对火灾发生的原因,结合实际,就如何加强新农村建设提出一些建议.     

从公共治理网络体系看技术性贸易壁垒的防范——以宁波市为例

文章以国内遭受技术性贸易壁垒最为频繁的地区之一——宁波市为例,通过对在应对技术性贸易壁垒中存在问题的分析,提出构建以政府机构、企业、社会中介机构等多元主体共同参与的新型公共治理新体制,以突破"技术性贸易壁垒"这一制约我国外贸出口的"瓶颈"。     

关于贷款风险防范的理论综述

随着经济全球化的发展和我国资本市场的开放,贷款风险防范成为理论界研究的一个热点问题。在综述了风险、贷款风险、贷款风险防范三方面,国内外理论界取得了一定研究成果,目前研究者的视线逐渐从理论向实践转化,将研究成果转化为实际应用的管理转化。对贷款风险防范的研究将围绕一些领域展开更深入的研究。