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Laparoscopic Management of Renal Paratransplant Hernia

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International Journal of Clinical Medicine 2015年第1期6卷 60-63页

作者： duncan Yoder Reza Ghasemian Medstar Georgetown Transplant Institute Washington DC USA

A renal paratransplant hernia is an unusual and potentially serious variant of an internal hernia. It is caused by entrapment of bowel through a defect in the peritoneum adjacent to the transplanted kidney. Abdominal pain and vomiting with or without distention are the main symptoms. Prompt diagnosis and early surgical intervention are critical to prevent serious morbidity and even mortality. Historically, renal paratransplant hernias were repaired via an exploratory laparotomy. We present our experience in two patients with renal paratransplant hernia who were treated with laparoscopic repair.

关键词： Renal Transplant Hernia Paratransplant Hernia Laparoscopic Repair

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Morning Chair:

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Wireless Boom Is Hackers' Heaven

第五届中国（北京）IMT-2000移动通信国际论坛

作者： duncan Clark Managing Director BDA China

来源： cnki会议评论

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当代外语研究 2005年第3期 23-24,28页

作者： duncan Graham-Rowe 浦焱青

如今,Wi-Fi无线互联网络不仅深受电脑用户的欢迎,也为黑客提供了实施网络攻击的便利条件,数字入侵者的黑手可以穿过未受保护的无线传播空间非法伸进电脑,轻易窥探手提电脑中的内容。而大约90％的可移动上网设备目前都缺乏必要的保护。... 详细信息

如今,Wi-Fi无线互联网络不仅深受电脑用户的欢迎,也为黑客提供了实施网络攻击的便利条件,数字入侵者的黑手可以穿过未受保护的无线传播空间非法伸进电脑,轻易窥探手提电脑中的内容。而大约90％的可移动上网设备目前都缺乏必要的保护。对于那些想要利用移动技术提高工作效率但又担心受到黑客和病毒攻击的公司和个人而言,Wi-Fi成了一把双刃剑。请记住:"无线技术很棒,但安全问题更重要。"

关键词： net Heaven Wireless Boom Is Hackers

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车载信息娱乐系统的动态数据完整性

汽车与配件 2008年第44期 28-29页

作者： duncan Bennett Ramtron International公司

铁电存储器(F—RAM)最大的特点是写入速度快、读写寿命长以及功耗低,其性能远远超过老式的非易失性存储器。在数据量不断增长的车载信息娱乐系统上,F—RAM将有非常好的应用前景。

关键词：车载信息娱乐系统数据完整性非易失性存储器铁电存储器写入速度数据量

A Composite Index-Based Approach for Mapping Ecosystem Service Production Hotspots and Coldspots for Priority Setting in Integrated Watershed Management Programs

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Journal of Geoscience and Environment Protection 2022年第4期10卷 49-63页

作者： duncan Kikoyo Srinivasulu Ale Patricia Smith Texas A&M University College Station USA

Despite the potential synergism, integrated watershed management and ecosystem services frameworks are rarely used jointly to address the myriad of current water-related issues. The two frameworks are used in this study to spatially identify ecosystem hotspots and coldspots for priority setting in natural resource management programs. Inferred proxies of carbon storage, groundwater supply, surface water supply, and soil retention ecosystem service production potentials were quantified for Texas, U.S., using two complimentary hydro-ecological models, and valued using a non-monetary multi-criteria valuation approach. Maps of individual and composite ecosystem service values showed that several services were co-located and unevenly distributed with most of the high-value hotspots clustered in the eastern part of the state. Individual impacts of land use, climatic and soil properties on the distribution and value of ecosystem services across space were discernable. The study underscored the need for holistic management of landscapes to take advantage of the multiplicity of benefits provided by nature. The approach can readily be incorporated into resource management programs to identify high-value ecosystem service production areas that need conservation, low-value areas that may need restoration, and anthropogenic activities influencing the distribution of ecosystem services.

关键词： HAWQS InVEST Multi-Criteria Analysis Spatial Analysis Sustainability

Multigrid Solution of an Elliptic Fredholm Partial Integro-Differential Equation with a Hilbert-Schmidt Integral Operator

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Applied Mathematics 2017年第7期8卷 967-986页

作者： duncan Kioi Gathungu Alfio Borzì Institut für Mathematik Universit&auml t Würzburg Würzburg Germany

An efficient multigrid finite-differences scheme for solving elliptic Fredholm partial integro-differential equations (PIDE) is discussed. This scheme combines a second-order accurate finite difference discretization of the PIDE problem with a multigrid scheme that includes a fast multilevel integration of the Fredholm operator allowing the fast solution of the PIDE problem. Theoretical estimates of second-order accuracy and results of local Fourier analysis of convergence of the proposed multigrid scheme are presented. Results of numerical experiments validate these estimates and demonstrate optimal computational complexity of the proposed framework.

关键词： Elliptic Problems Fredholm Operator Multigrid Schemes Finite Differences Numerical Analysis

微孔二氧化硅负载络合铂催化1-辛烯硅氢加成反应

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作者： duncan

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现代化工 2007年第4期27卷 27-29页

作者：胡文斌崔英德廖列文 duncan J.Macquarrie 仲恺农业技术学院绿色化工研究所广东广州510225 Green Chemistry Department of ChemistryUniversity of York

以微孔二氧化硅为载体,制备了微孔二氧化硅负载的铂胶体催化剂,并进行了表征。在密闭反应器中将催化剂用于催化1-辛烯与甲基氢二氯硅烷硅氢加成反应,结果显示该催化剂在常温常压下有很高的催化活性和重复实用性。无溶剂、40℃温度下反应... 详细信息

以微孔二氧化硅为载体,制备了微孔二氧化硅负载的铂胶体催化剂,并进行了表征。在密闭反应器中将催化剂用于催化1-辛烯与甲基氢二氯硅烷硅氢加成反应,结果显示该催化剂在常温常压下有很高的催化活性和重复实用性。无溶剂、40℃温度下反应10 h,甲基氢二氯硅烷的转化率可达99.11%,区域选择性β-加成产物100%。催化剂性能稳定,回收使用25次无明显失活。

关键词：微孔二氧化硅负载络合铂硅氢加成 1-辛烯

Controlled Batch Leaching Conditions for Optimal Upgrading of Agricultural Biomass

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Journal of Sustainable Bioenergy Systems 2013年第3期3卷 186-193页

作者： Prabahar Ravichandran duncan Gibb Kenneth Corscadden Centre for Renewable Energy University of Freiburg Freiburg Germany Department of Engineering Faculty of Agriculture Dalhousie University Truro Canada

Agricultural biomass presents a promising feedstock, which may contribute to a transition to low carbon fuels. A significant amount of research has identified a number of challenges when combusting agricultural feedstock, related primarily to energy value, ash, emissions, corrosion and combustion characteristics. The mitigation of such challenges can be addressed more cost effectively when dealing with large or utility scale combustion. The costs associated with harvesting, conversion, transportation and ultimately, market development all create additional roadblocks for the creation of an agricultural biomass industry. Nova Scotia, an Eastern Canadian province, has significant land resources, however it is prone to wet spring and as yet does not have a supply chain established for such an industry. The main components of supply, processing and conversion and demand simply do not yet exist. This research addresses one aspect of this supply chain by attempting to develop a fuel suitable for a) existing markets (local residential wood and wood pellet stoves and b) a scale that will support industry engagement. The outcomes of this research have determined that such a venture is possible and presents empirical preprocessing conditions to achieve a competitive agricultural fuel.

关键词： Optimal Leaching Agricultural Biomass Fuel Design Ash Reduction