An all-k-nearest-neighbor (AkNN) query finds k nearest neighbors for each query object. This problem arises naturally in many areas, such as GIS (geographic inf
多年来,急性肠系膜淋巴结炎的确诊为临床的一个难题。近年来随着高频探头的广泛应用,肠系膜淋巴结炎能被清晰显示,已有许多文献报道高频超声诊断肠系膜淋巴结炎。但诊断标准
SCTA是一种非创伤性的血管成像技术 ,应用于临床取得了初步经验 ,但报道内容大多为成像原理、成像技术和临床应用 ,这里不再赘述。我们经过对 2 0 0多例SCTA的检查操作取得了一定的经
(1)求:美国求购尿素、纯豆油、红木(urea Fertilizer. Crude Soya Bean Oil. Mahogany) 联系人:Jeanie Wang
(1) demand: U.S. buy urea, pure soybean oil, mahogany (ure
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥
AIM:To evaluate the feasibility and safety of No.13lymphadenectomy in radical gastrectomy for gastric carcinoma.METHODS:Medical records of the patients undergon
AIM: To evaluate the prevalence and determined the common characteristics of patients diagnosed with non- alcoholic fatty liver disease (NAFLD) at the Philippin
腰椎峡部裂是指腰椎椎弓部位的骨质缺损,是导致腰痛的常见原因之一.以往影像学诊断多为X线斜位片,CT平扫、尤其是CT后处理技术的应用,可以清晰显示腰椎峡部裂的情况、精确测
肺气肿疾病很常见 ,但对其胸廓改变的测量报道不多。我们随机抽取 81份胸部CT片。分别测量其主动脉弓平面的心前间距值及胸廓前后径与左右径比值。现报道如下。1 材料及方法81
Stem cells from extra- or intrahepatic sources have been recently characterized and their usefulness for the generation of hepatocyte-like lineages has been dem