10kV配网电力工程质量、安全、进度管理探析

在逐渐的发展过程中,人们对于电的需求也越来越大,同时也对我国的供电系统带来一定的问题,10k V配电作为供电的主要组成部分,在企业发展过程中也具有重要的影响。本文主要阐述了在配电过程中有关10k V配网工程的质量、安全、进度管理的探析。

公路绿色养护中FMEA失效模式及影响分析的应用

FMEA失效模式及影响分析为质量、安全风险的管理提供了有效的方法策略,是一种可量化、高效的风险管理模型。绿色公路养护蕴含了对公路养护质量、安全、生态环保的要求,本文应用FMEA模式建立公路绿色养护的风险评价标准及评价流程,将工程质量、安全、生态环保风险一体化控制,建立基于全生命周期的风险分级管控和持续改进机制,为开展公路绿色养护管理和创建平安品质公路提供可借鉴的模型,获得更为高效的结果。

西凤酒提高白酒质量措施的探讨

西凤酒作为老牌四大名酒之一,近年来,为了提高产品质量,保障食品安全,对产品工艺不断传承和创新,推出“陈年凤香型、凤香型和绵柔凤香型”等特色凤型产品。通过成立“中国酿酒原料及品质安全研究院”、改进提高传统酿酒技艺、设置质量控制“七大关卡、五十五道防线”和建立CMA资质认定、CNAS认可实验室,全方位提高产品质量,保障食品安全,为名酒振兴持续发力。

浅谈农村公路项目建设管理制度

随着农村公路项目建设的不断发展,规范农村公路建设项目建设管理工作尤为重要,基于此,本文对农村公路项目建设管理制度要点进行探讨。

Investigation of Heavy Metal Contents in Traditional Chinese Herbal Medicine Peristrophe roxburghiana Collected from Northwest of Guangxi

Objective] This study was conducted to evaluate the product quality and safety of Peristrophe roxburghiana_ col ected from different places in Hechi City, northwest of Gunagxi, so as to provide basic data for further development and uti-lization of the characteristic plant resource P. roxburghiana. [Method] Contents of 9 kinds of heavy metals including Cd, Mn, Pb, Zn and Cu in the herb were deter-mined by the method of wet digestion-flame atomic absorption spectrophotometry and atomic fluorescence spectrometry, respectively. [Results] Heavy metal contents of Cd, Mn, Pb, Fe, Cu, Zn, As, Hg and Se were 1.62-17.25, 8.93-142.53, 4.37-18.43, 103.7-242.81, 2.55-5.35, 85.40-146.30, 0.07-0.54, 0.00-0.08 and 0.00-0.47 mg/kg, respectively. According to the national food safety standards and Green Trade Standards of lmporting ＆amp; Exporting Medicinal plants ＆amp; Preparations, the heavy metal contents of the P. roxburghiana_samples col ected from different coun-ties in Hechi City exceeded standards or at the critical values. Among which, Cd, Pb and Zn contents of the samples are seriously higher than the standards. [Con-clusion] Therefore, the impact of soil heavy metal pol ution on the safety of edible plants in the northwest of Guangxi should be highly concerned.

Investigation and Analysis of Pesticide Residues in Citrus from Parts of Hubei Province

The analysis of pesticide residues in Citrus from Yichang, Danjiangkou, Zigui and Xingshan in Hubei Province was accomplished by UPLC-MS and GC-MS. The results showed that the detection rate of pesticide residues in Citrus reticulate was 91.9%. The detection rate of banned pesticides was 1.6%. The detection rate of restricted pesticides was 9.5%. The detection rate of allowed pesticides was 68.3%. The detection rate of unregistered pesticides was 15.9%. The pesticide used in citrus was relatively common. Because of the banned and restricted pesticides were both in the control degree, on the whole, the quality and security of Citrus reticulata was safe.

Design and Implementation of Traceability Management System of Agricultural Products Quality and Safety Based on Domestic Basic Software of China

[Objective] To establish the traceability mechanism of agricultural products safety, and the application of promote domestic based software in the supervision area of agricultural products quality and safety. [Method] Through the analysis on the circulation characteristics of agricultural products, like fruits, vegetables, livestock and poultry, the agricultural products quality safety management and traceability query business component libraries were designed. Based on the run-time-supporting environment provided by domestic based software, traceability management system of agricultural products quality and safety was constructed. [Result] The traceability management system provided the information interaction and comprehensive management platform of agricultural product quality and safety based on domestic based software for the government, enterprises and consumers. [Conclusion] Through the application demonstration, the quality control and information traceability of full circulation of agricultural products was achieved effective and reliably, and the management level of agricultural products quality and safety was improved.

建设工程项目管理分析研究

城市化建设进程的不断加快,建筑业快速发展,其发展水平已经达到很高程度,建设工程项目管理关系到整个项目的经济利益、安全生产以及建筑质量等各个方面,对于整个建设工程全程管理以及团队建设进行浅表分析研究。

Evaluation on Soil Heavy Metal Pollution of Agricultural Habitat Environment in Xi'an City

[Objective] This study aimed to understand and grasp the soil heavy metal pollution status of agricultural habitat environment in Xi＇an City. [Method] The soil heavy metal pollution status of pollution-free agricultural products-producing areas in 9 counties （districts） of Xi＇an City was investigated. A total of 609 soil samples were collected, and their Cd, Hg, As, Pb and Cr contents were determined. In addition, the heavy metal pollution status of the collected soil samples was evaluated by Nemerow index method. [Result] The pollution in Baqiao, Chang＇an; Gaoling, Lan- tian, Lintong and Yanliang was of grade I, belonging to clean level; the pollution in Hu County, Weiyang and Zhouzhi was of grade II, near the warning line, belong to relatively clean level. There was no large-area soil heavy metal pollution overall. The investigated areas could be used as production bases of pollution-free agricultural products and even high-quality agricultural products. However, the heavy met- als contents in some individual areas exceeded relevant soil environmental quality standards, and they should be avoided or forbidden during regional planning and selection of production area. [Conclusion] Soil heavy metal pollution of agricultural habitat environment in Xi＇an City is generally at good status. Targeting at the future development plan of Xi＇an City, feasible and scientific suggestions are put forward.

Thoughts on Establishment of the Agricultural Products Quality and Safety(Standards) Cooperation Center in Asia-Pacific Region

The establishment of agricultural products quality and safety cooperation mechanism and the research demonstration center in the Asia-Pacific reg coordinating each other, is not only of great ening cooperation with countries in Asia-Pacific region and for agricultural production safety of those countries in Asia- Pacific region, but also very necessary for our country to build a responsible image in the quality and safety of agricultural products, protection of the benefit of agriculture-related enterprises, increasing exports, ensuring imported food safety and China＇s national food security, as Well as nice exploration of establishing the global agricultural＇ products quality and safety cooperation center.

调压塔滑模施工技术与质量安全控制措施

随着水利建设工程的快速发展,对其技术要求也日益提高,在众多技术的应用中滑模施工技术因其机械化程度高、施工速度快、质量好、成本低、安全作业有保障等优点而在水利水电工程中得到了广泛的推广和应用。本文档以河北省邯郸市南水北调配套工程魏广分水口建筑物调压塔滑模为对象,介绍了调压塔滑模的施工工艺、质量保证和安全控制措施,保证调压塔滑模施工质量,为类似工程施工提供参考。

面板堆石坝高质量安全快速填筑施工

贵州盘南电厂响水水库面板堆石坝填筑施工中,在仅有一条上坝运输道路且与地方交通存在交叉混用的情况下,通过优化方案、精心组织及加强管理,历时10个月安全地完成坝体填筑量103万m3,较投标提前2个月,最高月填筑强度22万m3,至2005年10月10日止坝体最大沉降不足20cm,创造施工质量、进度、安全与施工成本等管理的多赢,赢得业主、设计、监理及地方政府等的高度评价与赞赏,并取得良好的社会经济效益。

浅谈建筑工程施工中的项目管理问题

本文就建筑工程项目管理中的成本、进度、质量、安全几个主要的方面进行阐述和分析,仅供参考。

What is the optimal treatment for appendiceal mass formed after acute perforated appendicitis?

We read with great interest the editorial article by Meshikhes AWN published in issue 25 of World J Gastroenterol 2011.The article described the advantages of emergency laparoscopic appendectomy compared with interval appendectomy as a new safe treatment modality for the appendiceal mass.The author concluded that the emergency laparoscopic appendectomy was a safe treatment modality for the appendiceal mass,and might prove to be more cost-effective than conservative treatment,with no need for interval appendectomy.However,we would like to highlight certain issues regarding the possibility of percutaneous catheter drainage to successfully treat the appendiceal mass,with no need for appendectomy,too.

Combinative Approaches of Chemistry, Pharmacology and Toxicology for the Optimal Pharmaceutical Preparation of an Anti-arthritic Chinese Medicine Formulation QFJBT

Objective Qing Fu Juan Bi Tang(QFJBT)is an anti-arthritic Chinese medicine formula consisting of five herbs:Aconiti Lateralis Radix Praeparata(Fu Zi,附子),Sinomenii Caulis(Qing Feng Teng,青风藤),Astragali Radix(Huang Qi,黄芪),Paeoniae Radix Alba(Bai Shao,白芍)and Moutan Cortex(Mu Dan Pi,牡丹皮),which have well-established histories of use for treatment of rheumatic and arthritic diseases.We intended to establish the optimized and standardized pharmaceutical procedures and manufacturing processes for the pilot production of QFJBT to develop it as a novel botanical drug product for treatment of rheumatoid arthritis(RA).Methods The combinative approaches of chemical assessment,toxicological and pharmacological evaluation were explored to define the pharmaceutical preparation of QFJBT.Results The optimized and standardized pharmaceutical procedures and manufacturing processes for the pilot production of QFJBT were established in terms of greatest chemical contents of bioactive constituents,potent anti-inflammatory and antinociceptive activities,and favorable safety profile.Quality analysis of the pilot product of QFJBT by high-performance liquid chromatography(HPLC)demonstrated that the chromatographic fingerprint profiles of three batches of QFJBT were basically identical and the contents of four characteristic and bioactive markers were relatively consistent.General toxicological studies showed a favorable safety profile of QFJBT.The maximum tolerated single dose of QFJBT was determined in both sexes of rats to be 33.63 g/kg body weight which is equivalent to 346 times of clinical dose.In the chronic oral toxicity study,the results of laboratory investigation showed that QFJBT at doses of 3.89,6.80 and 9.72 g/kg body weight(equivalent to 40,70 and 100-fold clinical doses,respectively)caused no changes in all hematological parameters and blood biochemical parameters of rats.No mortality or specific toxic responses were observed in animals after three months of repeated dosing with QFJBT.Conclusion The optimized and standardized pharmaceutical and manufacturing processes for the production of QFJBT have been successfully screened and identified through established rigorous in-process controls.

Physical Layer Security in MIMO Wiretap Channels with Antenna Correlation

To investigate the impact of antenna correlation on secrecy performance in MIMO wiretap channels with Nakagami-m fading, the expressions of secrecy outage probability and positive secrecy probability were derived. Diversity order and array gain were also achieved for further insight. The study was based on the information theory that physical layer security can be guaranteed when the quality of the main channel is higher than that of the eavesdropper's channel. Monte Carlo simulations well validated the numerical results of analytic expressions. It was shown that antenna correlation is detrimental to secrecy performance when average SNR of the main channel is at medium and high level. Interestingly, when average SNR of the main channel reduces to low level, the effect of antenna correlation becomes benefi cial to secrecy performance.

MECHANISM ON PROGRESSIVE INTRUSION OF PRESSURE WATER UNDER COAL SEAMS INTO PROTECTIVE AQUICLUDE AND ITS APPLICATION IN PREDICTION OF WATER INRUSH

This article proposes a water inrush mechanism of progressive intrusion of pressure water up into the coal floor aquiclude according to injection tests and observations. A numerical model and a criterion of water inrush are established based on the mechanism. The theory is succesSfully used in predictions of water inrush.

Exploration of Factors Influencing Oolong Quality and Control Technology in Anxi County

In the research, harmful substances to oolong in Anxi were introduced and production environment, agricultural residual, heavy metal and rare earth ele-ments of oolong in Anxi were analyzed. Furthermore, the factors influencing oolong quality were explored, and the control measures for guaranteeing oolong safety were proposed.

Discussions and Recommendations for Supervision of Vegetable Quality and Safety in Miyun County

Vegetable is a pillar industry of agriculture in Miyun County. Improving vegetable quality and ensuring consumers rest assured in consumption are essential for promoting increase of agricultural efficiency and farmers＇ income, and also the necessity for promoting sustainable development of vegetable industry. This paper elaborated current situations of vegetable production and quality and safety in Miyun County, summarized practice and exploration in supervision of vegetable quality and safety, and came up with recommendations for reinforcing supervision of vegetable quality and safety in view of weak points.

Study on life-cycle risk management of high earth-rock dam project

Based on advanced computer technology, internet of things （lOT） technology, project management con- cept and professional technology and combined with the innovative theories, methods and techniques in earlier hy- dropower projects, the life-cycle risk management system of high earth-rock dam project for Nuozhadu project was developed. The system mainly includes digital dam, three-dimensional design, construction quality monito- ring, safety assessment and warning, etc, to integrally manage and analyze the dam design, constructional quality and safety monitoring information. It realized the dynamic updates of the comprehensive information and the safe- ty quality monitoring in the project life cycle, and provided the basic platform for the scientific management of the construction and operation safety of high earth-rock dam. Application in Nuozhadu earth-rock dam showed that construction safety monitoring and warning greatly helped accelerate the construction progress and improve project quality, and provided a new way for the quality safety control of high earth-rock dam.