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高性价比的LG F720B
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《法制与经济》 2005年第07X期85-85,共1页
LGF720B属于“未来窗XP”系列,它采用了LG传统的造型,黑色外壳与米白色边框的搭配在视觉上看起来更加柔和。从性能来看,F720B采用显示器巨头LG推出的新一代显像管技术——“方管”技术。“方管”技术彻底解决了传统显示器一直存在的... LGF720B属于“未来窗XP”系列,它采用了LG传统的造型,黑色外壳与米白色边框的搭配在视觉上看起来更加柔和。从性能来看,F720B采用显示器巨头LG推出的新一代显像管技术——“方管”技术。“方管”技术彻底解决了传统显示器一直存在的边角变形问题,取得完美的显示效果。 展开更多
关键词 F720B显示器 性能 外观设计 方管技术 市场价格
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Prospective study of differential diagnosis of hepatic tumors by pattern-based classification of contrast-enhanced sonography 被引量:18
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作者 Kazushi Numata Tetsuo Isozaki +4 位作者 Manabu Morimoto Kazuya Sugimori Reiko Kunisaki Toshio Morizane Katsuaki Tanaka 《World Journal of Gastroenterology》 SCIE CAS CSCD 2006年第39期6290-6298,共9页
AIM: To prospectively evaluate the usefulness of a pattern-based classification of contrast-enhanced sonographic findings for differential diagnosis of hepatic tumors. METHODS: We evaluated the enhancement pattern of ... AIM: To prospectively evaluate the usefulness of a pattern-based classification of contrast-enhanced sonographic findings for differential diagnosis of hepatic tumors. METHODS: We evaluated the enhancement pattern of the contrast-enhanced sonography images in 586 patients with 586 hepatic lesions, consisting of 383 hepatocellular carcinomas, 89 metastases, and 114 hemangiomas. After injecting a galactose-palmitic acid contrast agent, lesions were scanned by contrast- enhanced harmonic gray-scale sonography in three phases: arterial, portal, and late. The enhancement patterns of the initial 303 lesions were classified retrospectively, and multiple logistic regression analysis was used to identify enhancement patterns that allowed differentiation between hepatic tumors. We then used the pattern-based classification of enhancement we had retrospectively devised to prospectively diagnose 283 liver tumors. RESULTS: Seven enhancement patterns were found to be significant predictors of different hepatic tumors. The presence of homogeneous or heterogeneous enhancement both in the arterial and portal phase was the typical enhancement pattern for hepatocellular carcinoma, while the presence of peritumoral vessels in the arterial phase and ring enhancement or a perfusion defect in the portal phase was the typical enhancement pattern for metastases, and the presence of peripheral nodular enhancement both in the arterial and portal phase was the typical enhancement pattern forhemangioma. The sensitivity, specificity, and accuracy of prospective diagnosis based on the combinations of enhancement patterns, respectively, were 93.2%, 96.2%, and 94.0% for hepatocellular carcinoma, 87.9%, 99.6%, and 98.2% for metastasis, and 95.6%, 94.1%, and 94.3% for hemangioma. CONCLUSION: The pattern-based classification of the contrast-enhanced sonographic findings is useful for differentiating among hepatic tumors. 展开更多
关键词 Contrast-enhanced sonography Hepatocellular carcinoma METASTASIS HEMANGIOMA
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Gallbladder lymphangioma:A case report and review of the literature 被引量:3
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作者 Jwa-Kyung Kim Kyo-Sang Yoo +15 位作者 Joon Ho Moon Kwang Hyuk Park Yong Woo Chung Kyoung Oh Kim Cheol Hee Park Taeho Hahn Sang Hoon Park Jong Hyeok Kim Jang Yeong Jeon Min Jung Kim Kwang Seon Min Department of Pathology Hallym University College of Medicine Anyang Korea Choong Kee Park 《World Journal of Gastroenterology》 SCIE CAS CSCD 2007年第2期320-323,共4页
Lymphangiomas are rare, benign tumors of the lymphatic system, usually present in children aged 5 years and younger. Because they are asymptomatic until the mass enlarges to cause symptoms, most lymphangiomas are diag... Lymphangiomas are rare, benign tumors of the lymphatic system, usually present in children aged 5 years and younger. Because they are asymptomatic until the mass enlarges to cause symptoms, most lymphangiomas are diagnosed at adulthood incidentally. We experienced a case of a 60-year-old man diagnosed with a cystic lymphangioma of the gallbladder, which was successfully resected without any complication. Magnetic resonance imaging and magnetic resonance cholangiopancreatography were very helpful for the diagnosis of the cystic lesion around the gallbladder as were ultrasonography and computed tomography scan. These showed a multi-lobulated cystic mass with intact cystic duct and bile duct in the gallbladder fossa. The patient underwent an open cholecystectomy and the histological findings were consistent with a cystic lymphangioma of the gallbladder. We here report the case of cystic lymphangioma of the gallbladder with a review of the literature. 展开更多
关键词 LYMPHANGIOMA GALLBLADDER CHOLECYSTECTOMY
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Market Share Model of Price and Advertising Combined Game in Duopoly
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作者 张晶 宋福根 《Journal of Donghua University(English Edition)》 EI CAS 2013年第2期158-163,共6页
The marketing share model of price and advertising in a duopoly market was studied in this paper. Market response curves of price and advertising were presented to calculate the reasonable range based on the market fo... The marketing share model of price and advertising in a duopoly market was studied in this paper. Market response curves of price and advertising were presented to calculate the reasonable range based on the market forecast results. The interaction effect of price and advertising was considered,and the game theory was applied to a two-stage price and advertising competition which involved the market share model. A marketing decision support system (MDSS) was developed and simulation data was provided to give the solutions. The operation results show that the leading enterprise makes higher price,spends more on advertising,and earns more profit,while the small-scale enterprise has to lower the price,spend less on advertising,and has slightly higher profit rate. The system is shown to be adaptable to a wide variety of realistic situations. 展开更多
关键词 ADVERTISING PRICE game theory market share model marketing decision support system MDSS)
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X射线为零——显示器“方管”技术探源
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《桌面黄页》 2004年第3期39-41,共3页
CRT显示器用为一项技术成熟的产品,与LCD显示器在性价比上的优势使其在专业图像领域的用户内仍有一定数量的用户拥载.而最近开始流传一个新名词——“方管”技术,它号称攻克了传统CRT显示器的多个难题.并被称为是显示器发展历史上... CRT显示器用为一项技术成熟的产品,与LCD显示器在性价比上的优势使其在专业图像领域的用户内仍有一定数量的用户拥载.而最近开始流传一个新名词——“方管”技术,它号称攻克了传统CRT显示器的多个难题.并被称为是显示器发展历史上的又一次重大革新和突破.甚至有人认为“方管”显示器在显示的精准方面媲美LCD显示器.种种传言莫衷一是。那么到底什么是“方管“技术.“方管”技术到底能给我们带来多大的惊喜,我们从世界第一款采用“方管”的显示器LG的未来窗XP上可以看出一些端倪。 展开更多
关键词 方管技术 CRT显示器 X射线 LG公司 “未来窗XP” 结构 性能
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Evaluation of the optimal field arrangement for conformal radiotherapy for prostate cancer patients
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作者 M.Mahmoud K Elshahat +2 位作者 H.William M.Barsum Amr Gaber 《The Chinese-German Journal of Clinical Oncology》 CAS 2012年第6期344-348,共5页
Objective:The aim of this study was to evaluate the optimal field arrangement for conformal radiotherapy (CFRT) for prostate cancer patients.Methods:Thirty patients with prostate cancer of different grades and stages ... Objective:The aim of this study was to evaluate the optimal field arrangement for conformal radiotherapy (CFRT) for prostate cancer patients.Methods:Thirty patients with prostate cancer of different grades and stages were treated with 3D conformal radiotherapy to minimize the dose to bladder,rectum and head of both femora using four fields (4F),five fields (5F),six fields (6F) and ARC techniques to minimize the risk of over dose to bladder,rectum and femoral heads.Patients received a total dose between 76 to 78 Gy given in 38 to 39 fractions over 7.5 to 8 weeks.Results:It was observed that V95,D95,D50 and D5 values for planning target volume (PTV) were comparatively higher when planned by 5 fields technique than when planned by fixed field technique (91%,91%,90% and 91.4% for skip-scan technique versus 85%,87%,86% and 88% by fixed field).The organs like rectum and urinary bladder get much higher dose when treated by fixed field techniques than rotation or 5 fields technique,when comparison was made for V95,V50 and DM values for rectum and urinary bladder obtained by 5 fields technique planning and 4/6 field planning,the value for 5 fields technique was found to be lower than 4/6 field technique (1%,70% and 51% versus 13%,91% and 55% for rectum and 4%,25% and 51% versus 16%,38% and 56% for urinary bladder respectively).Conclusion:Similarly for femoral heads,planning by full rotational technique had been observed to be beneficial as compared to when planning was done by fixed field technique (0%,0% and 29% versus 0%,1% and 28%). 展开更多
关键词 prostate cancer conformal radiotherapy (CFRT) EVALUATION field arrangement
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A Secure Session Key Distribution Scheme for Group Communications
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作者 林仁宏 詹进科 《Journal of Shanghai Jiaotong university(Science)》 EI 2006年第2期192-196,共5页
In a secure group communication system, messages must be encrypted before being transmitted to group members to prevent unauthorized access. In many secure group communication schemes, whenever a member leaves or join... In a secure group communication system, messages must be encrypted before being transmitted to group members to prevent unauthorized access. In many secure group communication schemes, whenever a member leaves or joins the group, group center (GC) immediately changes the common encryption key and sends the new key to all valid members for forward and backward secrecy. If valid members are not on-line, they will miss the re-keying messages and will not be able to decrypt any ciphertext. Therefore, group members must be able to store the state of the system. In some applications, like global positioning systems (GPS) or pay-per-view systems, it is not reasonable to ask group members to stay on-line all the time and save the changes to the system. A hierarchical binary tree-based key management scheme are proposed for a secure group communication. This scheme reduces the key storage requirement of GC to a constant size and the group members are not required to be on-line constantly (stateless). 展开更多
关键词 key management symmetric encryption group communication pseudo-random function
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LG F720P
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作者 《软件世界》 2004年第3期142-142,共1页
关键词 显示器 显像管 方管技术 LG F720P
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差异化的魅力
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作者 朴基普 《中国计算机用户》 2004年第4期21-21,共1页
当一个市场逐步进入成熟期之后,很多厂商都在担心的一件事情就是,如何在激烈的竞争中吸引到足够多的消费者?当然,答案非常简单,那就是努力实现差异化。
关键词 同质化 品牌 差异化 市场周期率 LG公司 方管技术
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LG F710B纯平显示器
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作者 广文 《中国计算机用户》 2005年第37期61-61,共1页
LG F710B是一款面向主流用户的17英纯平显示器。该产品采用了先进的“方管”技术,实现了“方对方”投影,消除了传统显示器采用“圆对方”技术所造成的边角失真。特别是“方管”技术的特殊屏蔽性结构能使显示器的X射线辐射大幅降低。
关键词 纯平显示器 LG 方管技术 X射线辐射 屏蔽性 失真
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LG F730P
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作者 吕华威 《个人电脑》 2004年第12期45-45,共1页
关键词 LG公司 F730P CRT显示器 刷新率 性能规格 方管技术 外观设计
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Construction Control and Monitoring of Large Span Continuous Steel Arch Bridge Based on 3G Network
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作者 NI Chuanzhi SONG Yumin 《International English Education Research》 2018年第4期39-42,共4页
This paper takes the right branch main channel Bridge of Huai River Bridge in Huainan as the engineering background, uses the finite element software Midas and the ANSYS to simulate and analyze the jacking constructio... This paper takes the right branch main channel Bridge of Huai River Bridge in Huainan as the engineering background, uses the finite element software Midas and the ANSYS to simulate and analyze the jacking construction of the bridge, and according to the theoretical calculation, the construction monitoring plan is developed, and the stress and deformation of the key section and part of the structure are monitored. Construction monitoring combined with 3 g network and data acquisition module, monitoring data for the real time measurement, the centralized acquisition and wireless transmission, accomplish on-line real-time monitoring of the bridge construction process, effective control of jacking construction and monitoring. The comparison between theoretical analysis and measured results shows that the simulation results are reasonable, and the construction monitoring scheme based on 3G network and data collection can be used as reference. 展开更多
关键词 bridge engineering Jacking construction simulation analysis 3G network real-time monitoring
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Government Management Innovation in the Age of Big Data
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作者 Que Tianshu 《Management Studies》 2016年第6期279-286,共8页
Both opportunities and challenges are currently faced by government management innovation in the age of "big data". Traditionally, relative studies view the management of governments as the effective means to improv... Both opportunities and challenges are currently faced by government management innovation in the age of "big data". Traditionally, relative studies view the management of governments as the effective means to improve governmental services, without really understanding the structural influence of big data and network technology on governmental mode of thinking. Against such backdrop, this paper tries to conduct critical analysis based upon traditional outcomes in this regard, trying to make full use of the function of big data technology. With these efforts, this paper contributes to the building of an interaction theory that could promote transparency of information and customization and segmentation of the policies. By constructing a mode in which management could be carried out based on the law of big data, by building an information management system in which balance could be achieved between responsibility and freedom, by promoting the rebalancing among public power, online civil society and civil rights, the innovation of governmental management would be achieved. 展开更多
关键词 big data government management data dictatorship INFORMATION network society public power
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Research and Review on the Development of Mechanical and Electrical Integration of System Function Principle and Related Technologies
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作者 Zhihai Zhou 《International Journal of Technology Management》 2015年第10期137-139,共3页
In this paper, we conduct research on the development of mechanical and electrical integration of system function principle and related technologies. Along with the rapid and continuous development of modem science an... In this paper, we conduct research on the development of mechanical and electrical integration of system function principle and related technologies. Along with the rapid and continuous development of modem science and technology, it ' s for the penetration and cross of different subjects great push, the more important is caused by technological revolution in the field of engineering and mechanical engineering field under the rapid development of computer technology and microelectronic technology and penetration to the mechanical and electrical integration, which is formed by the mechanical industry lead to trigger a particularly large changes in the mechanical industry management system and mode of production, product and technical structure, composition and function, thus result in industrial production from the previous mechanical electrification progressively electromechanical integration which lead the trend of the current technology. 展开更多
关键词 Mechanical and Electrical Integration System Function Development Principle.
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CRT的反击——LG方管未来窗F720B
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作者 别理我 《大众软件》 2004年第8期18-18,共1页
新的“未来窗”F720B带给我们的是令人瞩目的“方管”技术。这对大多数读者是一个陌生的名字,这是一种构思巧妙,实用性很高的新技术。
关键词 LG公司 方管技术 未来窗F720B CRT显示器 显示效果 技术规格
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“方管”+大屏=大方管——LG F920B显示器
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《电脑时空》 2004年第6期38-38,共1页
关键词 LG公司 F920B 显示器 方管技术 边角聚焦 技术规格
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将方管进行到底——LG F720P CRT显示器评测
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作者 冯华 《微电脑世界》 2004年第6期61-61,共1页
早在去年6月份,LG将未来窗系列CRT显示器升级为未来窗XP,其三重平面技术给用户留下了深刻的印像。今年2月,LG又借其在“放眼未来窗方管天下行”24城市巡展活动之势,推出了“未来窗XP”系列的旗舰产品F720P,将幕后英雄——方管技术请到... 早在去年6月份,LG将未来窗系列CRT显示器升级为未来窗XP,其三重平面技术给用户留下了深刻的印像。今年2月,LG又借其在“放眼未来窗方管天下行”24城市巡展活动之势,推出了“未来窗XP”系列的旗舰产品F720P,将幕后英雄——方管技术请到了前台,表明了其要将方管技术进行到底的决心。 展开更多
关键词 LG公司 未来窗系列 F720P CRT显示器 方管技术 色彩还原能力
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“方管”新风潮——CRT三大绝招叫板LCD
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作者 饭团 《电脑时空》 2004年第4期20-21,共2页
近几年,LCD凭借真实准确的显示效果、良好的环保功能和便携性迅速占据了显示器的高端市场,然而它在色彩显示上的些许缺憾让对色彩要求苛刻的专业人士和部分游戏玩家不得不放弃对它的追求,同时它高高在上的价格也让相当一部分囊中并... 近几年,LCD凭借真实准确的显示效果、良好的环保功能和便携性迅速占据了显示器的高端市场,然而它在色彩显示上的些许缺憾让对色彩要求苛刻的专业人士和部分游戏玩家不得不放弃对它的追求,同时它高高在上的价格也让相当一部分囊中并不饱满的用户不得不继续留守自己的CRT显示器,可是在CRT的时候。 展开更多
关键词 CRT显示器 方管技术 边角显示变形 X射线
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方管未来窗——LG F720P CRT显示器
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作者 冯华 《微电脑世界》 2004年第3期66-66,共1页
关键词 LG电子公司 F720P CRT显示器 “未来窗XP”系列 三重平面技术 方管技术 带宽 分辨率 刷新频率
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Autogenous standard versus inside-out vein graft to repair facial nerve in rabbits 被引量:11
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作者 唐杰 王雪梅 +2 位作者 胡静 罗恩 戚孟春 《Chinese Journal of Traumatology》 CAS 2008年第2期104-109,共6页
Objective: To evaluate autogenous vein grafts and inside-out vein grafts as conduits for the defects repair in the rabbit facial nerves. Methods: The 10 nun segments of buccal division of facial nerve were transect... Objective: To evaluate autogenous vein grafts and inside-out vein grafts as conduits for the defects repair in the rabbit facial nerves. Methods: The 10 nun segments of buccal division of facial nerve were transected for 48 rabbits in this study. Then the gaps were immediately repaired by autogenous vein grafts or inside-out vein grafts in different groups. All the animals underwent the whisker movement test and electrophysiologic test during the following 16 weeks at different time points postoperatively. Subsequently, the histological examination was performed to observe the facial nerve regeneration morphologically. Results: At 8 weeks after operation, the facial nerve regeneration has significant difference between the experimental group and the control group in electrophysiologic test and histological observation. However, at the end of this study, 16 weeks after operation, there was no signifi- cant difference between inside-out vein grafts and standard vein grafts in enhancing peripheral nerve regeneration. Conclusion: This study suggest that both kinds of vein grafts play positive roles in facial nerve regeneration after being repaired immediately, but the autogenous inside-out vein grafts might accelerate and facilitate axonal regeneration as compared with control. 展开更多
关键词 Facial nerve Nerve regeneraation Tissuegraft Tubulization
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