A Technique of Bilateral Inguinal Hernia Repair Using 10 mm Single Port Access and Bioresorbable Composite Mesh Fixed with Endoclose Sutures: Three Cases Reported

Purpose: To report a novel technique of laparoscopic 10 mm Single Port Access IntraPeritoneal Onlay Mesh (SPA-IPOM) using bioresorbable composite mesh fixed with Endoclose suture (percutaneous subcutaneous suture) in 3 cases of bilateral inguinal hernia. Methods: Laparoscopic SPA-IPOM is done through a 10 mm trocar with one 10 mm instrument that has 5 mm optical lens and 5 mm channel for grasper. After inserting 10 mm trocar at umbilicus using semi-open technique, intraperitoneal anatomical landmark of inguinal her-nia is identified. A 10 × 15 cm pre-tied bioresorbable composite mesh is then placed to cover hernia defect and all three potential area of indirect, direct and femoral hernia. Using Endoclose? needle, each pair of pre-tied sutures is retrieved percutaneously through a needle wound and extracorporeal tied with knot in subcutaneous space. After the upper half of mesh is sutured to the posterior surface of abdominal wall, the lower half of mesh is fixed by hernia tacker to Symphysis Pubis, Cooper Ligament and Iliopubic tract. Re-sults: Three men, average 48 year olds were operated by laparoscopic 10 mm SPA-IPOM for bilateral in-guinal hernia repair using bioresorbable composite mesh. Average operative time was 36 minutes. No imme-diate complication. All patients were discharge on the 2nd post-operative day and average 6 months follow up has no recurrence. Conclusions: Laparoscopic SPA-IPOM is an optional operation and is much easier to be performed. Benefits include operative time saving, cosmesis, early discharge and early return to work. Bio-resorbable composite mesh prevents bowel adhesion, however, is much more expensive. Long term follow up study for complications and recurrence is needed.

长江城市岸线资源港口开发适宜性分析与合理利用——以南京市为例

城市岸线地区是城市中具有巨大发展潜力的空间领域,在城市发展的不同时期承担着不同的功能。农业社会对岸线的利用规模小,工业革命以后,城市岸线地区成为主要的港口(含公用港口和工业用港口)集聚地段之一。随着经济的发展和生活水平的提高,人们赋予城市岸线的利用功能不断增加。仅从岸线自然条件及岸线集疏运、城市依托等人文因素出发讨论岸线港口开发适宜性的做法已无法适应发展的需要。只有统筹考虑岸线承担的多种功能,才能实现岸线地区经济和生态的双赢。以长江南京段岸线为例,从岸线自然条件和岸线承担的多种功能角度,分析了岸线资源港口开发的适宜性状况,指出岸线利用存在的主要问题,在此基础上提出城市岸线资源合理开发利用和保护的对策建议。

THE POSITION AND ROLES OF PORTS AND RAILWAYS IN THE EURASIA LAND BRIDGE TRANSPORTATION IN NORTHEAST CHINA

This paper systematically analyzes and proves the favorable factors of utilizing the ports and the railways in Northeast China for the Asia-Europe land bridge transportation. It will be more beneficial to Dalian Port and HaDa (Harbin-Dalian) and Binzhou (Harbin-Manzhouli) railways in Northeast China to the Siberia railway in Russia than 1) to other ports and the corresponding railways in China, 2) to the Nakhodka Port in Russia and the corresponding railways and 3) to the Chongjin Port in North Korea and the corresponding railways. This paper also puts forward the reform measures to adopt the ports and the railways in the northeast region in China for the land bridge transportation and the problems in transportation policies and management systems.

Spatial Pattern and Heterogeneity of Port & Shipping Service Enterprises in the Yangtze River Delta,2002–2016

Using the ‘theoretical hypothesis—empirical study—case verification' method, this paper studies the spatial distribution and differentiation of port & shipping service enterprises(PSSE), as well as the variation process and underlying mechanism in the Yangtze River Delta(YRD). First, through inductive and deductive reasoning, we propose the following hypothesis: the regional distribution of different types of PSSE would show different spatial agglomeration-decentralization tendency; and there would be distinct regional differentiation in the industrial structure of the enterprises. Second, based on data obtained from enterprises, empirical research is conducted using Gini coefficient and spatial interpolation simulation methods. Results show that: 1) The overall enterprise distribution is decentralized within a city. 2) Different types of enterprises show different spatial agglomeration-decentralization tendencies. At 3000 m×3000 m grid scale, there is an agglomeration tendency along seas and rivers in the spatial distribution of enterprises. Shanghai has been identified consistently as a hot spot. 3) There is significant regional differentiation in 12 port cities with respect to the industrial structures of enterprises. Finally, the transportization and the increase of shipping service demand, the globalization and the expansion of multinational corporate activities, the hierarchization and the cooperation among port cities as well as the decentralization and the behavioral difference between the central and local states can be seen as main driving mechanism of the spatial phenomenon.

Problems and Countermeasures of Taihu Port Farm in Jingzhou City after Function Reform of Running the Society

Deepening function reform of running the society of state-owned farm is an important strategic plan made by the Party Central Committee and the State Council,and is also ' hard bone' bitten by fully implementing the strategy of rural revitalization and promoting the modernization of agriculture and countryside. In this paper,the problems of Taihu Port Farm in Jingzhou City after function reform of running the society are systematically and comprehensively analyzed via field research,and corresponding countermeasures are proposed. The research could provide beneficial reference and experience reference for deepening function reform of running the society of current state-owned farm.

Port and Shipping Express Management: The Challenges Faced by West and Central Africa in This Century

Shipping industry has become more capital intensive, technically more demanding and subject to major global regulatory reforms. As a consequence, the number of African shipping lines has been severely reduced. International trade of the WCA countries remains weak, limited to 30% of their Gross Domestic Product (GDP). The goal of this paper is to provide a comprehensive overview of the port and shipping convey management in the WCA region, and of course to describe what has been achieved since then and what still have to be done to better its infrastructures and port community.

光动力学治疗鲜红斑痣反应体系数学仿真的初步探讨

目的通过建立光动力学治疗鲜红斑痣中激光、光敏剂的分布及其相互作用关系的数学模型,对微血管中单态氧的产生过程进行仿真,分析各种因素对治疗的影响,对数学建模在光动力反应体系中的应用价值进行初步探讨。方法用MonteCarlo方法描述光在组织中的分布;用药代动力学描述光敏剂在血管中的变化规律;用Lambert-Beer定律和单态氧的量子产率来计算血管中的单态氧产量。结果单态氧在血管中的空间变化规律由光分布决定,血管中心产生少;时间变化规律由光敏剂的药代动力学决定,呈迅速衰减趋势。光敏剂的倍增比激光剂量的倍增产生更多的单态氧。直径大的血管平均单态氧量较直径小的血管少,难以被破坏。肤色深单态氧的产生少。结论 数学仿真能较好地描述光动力学治疗鲜红斑痣中各种因素对治疗的影响,数学建模是一种对光动力复杂作用体系的研究有独到之处的研究方法。

基于DEHPHI语言实现高速研磨机变速控制的一种方法

通过对固着磨料加工工艺的研究,提出了一种通过控制磨具转速来控制工件与磨具之间的相对运动速度,提高加工精度和效率的有关固着磨料高速研磨工艺研磨速度控制的技术方法。运用计算机的信息处理能力,应用以DELPHI语言编写的程序通过计算机与变频器的串行通讯实现对高速研磨机的变速控制。

异步电机直接转矩控制算法的DSP实现

直接转矩控制是一种新型的交流电机变频驱动控制方法。本文详细介绍了异步电机直接转矩控制算法在TM S320F240D SP控制器上的实现方法。TM S320F240D SP芯片丰富的片内外设资源给编程带来了极大方便。程序能够基于直接转矩控制算法高效地控制电机运行。并且,实现了D SP程序与PC上位机的RS-232串口通信。在PC上可以通过串口向D SP发送命令、设置参数。本文设计的程序对直接转矩控制算法及其改进算法的研究有积极意义。

Perception and attitude of theatre staff to preoperative HIV testing at the University of Port Harcourt Teaching Hospital

Objective:To elucidate the awareness and approach to pre-operative human immunodeficiency virus(HIV) testing and emphasis on the attendant components of HIV testing.Methods: The study was conducted at the theatres of the University of Port Harcourt Teaching Hospital among 123 nursing,anaesthetic,and operating staff.A descriptive cross sectional design was adopted with stratified sampling.The study instrument was a structured,self administered pro forma.Results:All respondents were all aware of HIV infection and all had transmission through infected blood and tissues(100.0%).88.6%had infection through needle stick injuries, 62.6%through vertical transmission,and 98.4%through blood transfusion.Sixty three percent of respondents correctly knew what preoperative testing was,while 58.5%were aware of the preoperative testing policy of the hospital.All respondents favoured the policy of preoperative testing.Attitudinal values to seropositive patients were not very different as 72.4%of respondents claimed they treated every patient as high risk,and all respondents used personal protective equipment.Conclusions:Routine HIV testing now represents a conventional means providing patients with knowledge of their HIV status.Such testing should be accompanied by informed consent,counselling,confidentiality,protection,and access to treatment.

Single port laparoscopic right hemicolectomy for ileocolic intussusception

A 36-year-old male was admitted with right lower abdominal pain and diarrhea for more than 3 mo. Colonoscopy and a barium enema study revealed a submucosal tumor over the cecum, but computed tomography showed an ileal lipoma. There was no definitive diagnosis preoperatively, but ileocolic intussusception was noted during surgery. Single port laparoscopic radical right hemicolectomy was performed because intra-operative reduction failed. The histological diagnosis of the resected tumor was lipoma. Single port laparoscopic surgery has recently been proven to be safe and feasible. There are advantages compared with conventional laparoscopic surgery, such as smaller incision wounds, fewer port site complications, and easier conversion. However, there are some drawbacks which need to be overcome, such as difficulties in triangulation and instrument clashing. If there are no contraindications to laparoscopy, single port laparoscopic surgery can be performed safely and should be considered for diagnosis and treatment of intussusception in adults. Here, we report the first case of ileocolic intussusception successfully treated by single port laparoscopic surgery.

真空检漏设备数据采集系统的实现

文章详细介绍了真空检漏设备数据采集系统硬件网络的构建以及软件的开发。着重讲述了采集软件的主要功能设计及其实现方法,包括:可扩展串口功能、数据采集控制及处理功能、监视功能、数据备份恢复功能和模板式文件管理功能等。最后对该软件进行了展示。该系统已经在小卫星检漏试验中使用,并获得了较好的效果。

Measurement and Forecasting of Port Tide Hydrostatic Component in North Tyrrhenian Sea (Italy)

Starting from the end of the 90s not perodic and unpredictable variations in the depth of harbor waters were observed. Long period (from 24 hours to a few days) and wide amplitude are their main features. Experience showed that this phenomenon is a risk for harbor navigation and mooring. It may be a serious obstacle to waterside port activities. The first observation of the data does not link the super-highs and the super-dry tides to the meteorological dynamic of sea-atmosphere interaction (i.e. Storm Effect). More, the attempt to compensate for these sea depth fluctuations by means of the well-known offshore hydrobarometric inverse parameter (1 [cm] sea level variation for &#451 [hPa] atmospheric pressure variation) underestimates the amplitude of the phenomenon. In the first years of 2000, the Italian Ministry of Transport launched a national project for the definition of thee-amplitude and time of these tidal anomalous waves. The measure of harbors hydrobarometric inverse factors showed a much more intense value than the theoretical one (computed for the offshore). These amplification factors are characteristic of each harbor and can be double (in exceptional cases even more) than offshore. The delay between the arrival times of these tidal waves (induced phenomenon) respect to the time of arrival of the atmospheric pressure variation (inducing phenomenon) depends on 1) morphology of the port basin sea floor and 2) harbor and off-shre water dynamics relationship (first approximation). For these reasons the hydro barometric inverse parameter is not effectiveness computable but it can be determined statistically.

Port Logistics in West and Central Africa: A Strategic Development under Globalization

The main idea of this study is to provide help to West and Central Africa port logistics authorities in making, evaluating and realizing their decisions on port development/management, all in an effort to guaranty port efficiency and operational brilliance to profit the different ports, their hinterlands and their related clients. Consequently, an examination is made as far as port sector is concerned, with an ever more demanding enhancement in operational efficiency. Moreover, a past research on West and Central Africa Ports, as well as an overview on port logistics was made, making it possible to determine what has been done (prospects) and what is still to be done (ineffectiveness), in prospective of a more reformed and efficient port. One of the principles of this paper is also to confer all the aspects that operate as obstacles to the WCA port’s improvement and development;using thus the evaluation model called EWCA (Evaluation of West and Central Africa Ports), which gives a descriptive analysis of the present situation of the latter’s port logistics, including the aid of multiple regression model to determine an impact of explanatory variables on the study probability. Applying the method of strategic development, this paper thus deals with exploring typical problems and quandaries of West and Central Africa ports. The findings suggested how to fight back or overcome the constrictions and strangulations;enabling West and Central Africa port logistics attain their desired strategic development aims, despite the ineffectiveness. Tremendous efforts were made, giving a vital shoot on African economy and development;even though there is still a lot to do, for the data and variables showed how the port logistics augment and descend frequently without a long period of stability.

The Effects of Road and Other Pavement Materials on Urban Heat Island (A Case Study of Port Harcourt City)

Urban centers are consistently exhibiting higher temperature than its surrounding suburban rural areas. The large amount of heat generated from urban structures such as road materials and pavement materials and other anthropogenic heat sources are the main causes of Urban Heat Island (UHI). The sources of data for this research included primary and secondary sources. Other techniques employed for data collection were direct measurement and readings on the road and pavement materials. The research found out that, there was consistency in rising temperature at different time of the day by the different road and pavement materials. Asphalt has the greatest effect of increasing the urban temperature four degrees higher, followed by concrete, three degree rise in temperature, and earth (ordinary ground) by two degree rise and vegetation (grass) by one degree rise in temperature. The overall effect on the residents of the study area ranges from increase in hotness of the day;44.6% respondents agrees;while 34.3% says it affects the ambient air quality of the area, and other effects such as increased ground level ozone, suffocation, sleeplessness and restlessness as a result of excessive high temperature especially at night are identified in this paper. The research recommends the review or redesigning of the entire Port Harcourt city Master Plan to make provision for creation of more green areas rather than pavements and concreted areas to reduce the effects of (UHI) and ultimately improve the comfort and living conditions of the people in a the garden city Port Harcourt.

Economic Analysis of Port and PICC in Long-term Intravenous Administration for Malignant Tumor Patients in Chinese Oncology Hospital Setting

OBJECTIVE: To calculate and compare the cost of Port and PICC's application in long-term intravenous administration, and to support the decision making of hospital manager. METHODS: Literature review and patient survey in 2 oncology centers in China were carried out to investigate the cost and impact of Port and PICC for patients. The cost at different time of intravenous administration was calculated and compared. One-way sensitivity analysis was performed and tornado graph was drawn. RESULTS: Direct cost of Port at 0.5, 1, 1.5, and 2 years were7442, 8005, 8553, and 9131 CNY, and 4700, 9399, 14032, 18799 CNY for PICC respectively. Direct & indirect cost at 0.5, 1, 1.5, and 2 years were 9291, 11704, 14101, 16529 CNY for Port and 9697, 19393, 29023, 38787 CNY for PICC. Sensitivity analysis showed that productivity loss and device maintenance cost were the most in?uential factors to the result. CONCLUSION: Port had higher cost in short term and less in long term compared with PICC. Patients expected to get intravenous administration more than 0.5 year should use Port if both direct and indirect costs were included.

U-Boot在S3C44B0上的移植方法

Bootloader(引导加载程序)是嵌入式系统CPU加电后第一个开始运行的代码.在内核映像执行之前完成相关的底层硬件的初始化,建立内存空间的映射图等重要工作,然后为内核提供引导参数,启动内核.DasU Boot(UniversalBootloader),是一个功能十分强大的Bootloader,本文深入研究了U Boot的工作机理,详细分析了U Boot在基于三星公司S3C44B0处理器的嵌入式系统板上的移植方法、过程与移植要点.

Study on Task Assignment of Two-stage Multi-service Capability Port Logistics Service Providers

This paper mainly studies the problem of multi-task assignment of providers in port logistics service supply chain.As a core enterprise,port plays the role of logistics service integrator.With the continuous development of industrial integration,logistics service providers not only provide one kind of logistics service,but also develop into composite suppliers who capable of providing a variety of logistics services.This paper studies the task assignment problem of multi-service capability providers in the port logistics service supply chain.The two-stage logistics service provider task assignment model was built,which is based on the mixed evaluation method(including MOORA and FMEA)and the multi-objective planning method.Eventually,the effectiveness of the model method was verified by combining with an example.

基于六维鼠标控制的飞行器仿真系统研究

本文介绍了在Windows系统平台,C++6.0的MFC基础类库环境下,采用OpenGL技术与串口通信技术实现的飞行器仿真系统的设计思想与程序实现方法。飞行器仿真系统由新型六维鼠标控制,具有六维飞行能力。仿真系统由虚拟飞行器、三维地形和六维鼠标控制系统三部分构成。

Port site infection in laparoscopic surgery: A review of its management

Laparoscopic surgery(LS), also termed minimal access surgery, has brought a paradigm shift in the approach to modern surgical care. Early postoperative recovery, less pain, improved aesthesis and early return to work have led to its popularity both amongst surgeons and patients. Its application has progressed from cholecystectomies and appendectomies to various other fields including gastrointestinal surgery, urology, gynecology and oncosurgery. However, LS has its own package of complications. Port site infection(PSI), although infrequent, is one of the bothersome complications which undermine the benefits of minimal invasive surgery. Not only does it add to the morbidity of the patient but also spoils the reputation of the surgeon. Despite the advances in the field of antimicrobial agents, sterilization techniques, surgical techniques, operating room ventilation, PSIs still prevail. The emergence of rapid growing atypical mycobacteria with multidrug resistance, which are the causative organism in most of the cases, has further compounded the problem. PSIs are preventable if appropriate measures are taken preoperatively, intraoperatively and postoperatively. PSIs can often be treated non-surgically, with early identification and appropriate management. Macrolides, quinolones and aminoglycosides antibiotics do show promising activity against the atypical mycobacteria. This review article highlights the clinical burden, presentations and management of PSIs in LS as shared by various authors in the literature. We have given emphasis to atypical mycobacteria, which are emerging as a common etiological agent for PSIs in LS. Although the existing literature lacks consensus regarding PSI management, the complication can be best avoided by strictly abiding by the commandments of sterilization techniques of the laparoscopic instruments with appropriate sterilizing agent.