2005年前三季度我国钨品进出口分析

2005年前三季度我国钨品出口22855．0t，较上年同期的19480．4t增加3374．6t，增幅为17．3％；出口额55125．9万美元，较上年同期的22242．2万美元增加32883．7万美元，增幅为147．8％。2005年前三季度进口量为2816．9t，较上年同期的1790t增加1026．9t，增幅为57．4％；进口额6022．4万美元，较上年同期的3920．5万美元增加2101．9万美元，增幅为53．6％。     

2003年我国钨品进出口分析

2003年我国钨品出口26043．3t(钨含量，不含硬质合金和合金粉)，较上年的20049．5t增加5993．8t。增幅为29．9％；出口额为21995万美元，较上年增加4699．4万美元，增幅为21．4％。进口量为1513．7t(钨含量)，较上年的1605．4t减少91．7t，减幅为5．7％；进口额3386．6万美元，较上年的2413．5万美元增加973．1万美元，增幅为40．3％。     

2005年一季度我国钨品进出口分析

2005年第一季度我国出口钨品6441t(钨含量)，较上年同期的5476．6t增加964．4t，增幅为17．6％：出口9410．7万美元，较上年同期5262．8万美元增加4147．9万美元，增幅为78．8％。进口钨品量为623．2t(钨含量)，较上年同期的311．9t增加311．3t，增幅为99．8％；进口额1374.3万美元。较上年同期的1050．7万美元增加323．6万美元．增幅为30．8％。纯出口量为5817．4t．     

2004年前三季度我国钨品进出口分析

2004年前三季我国钨品出口19480．4t，较上年同期的20117t减少636．6t，减幅3．2％；出口额为22242．2万美元，较上年同期的16803．1万美元增加5439．1万美元，增幅为32．4％。进口量1790t，较上年同期的1134．9t增加655．1t，增幅为57．7％；进口额3920．5万美元，较上年的2507．1万美元增加1413．4万美元，增幅为56．4％。     

2004年上半年我国钨品进出口分析

今年上半年钨品出口量为12633．6t，与上年同期13441．9t相比，减少808．3t，减幅为6％；但出口额达到了13350．4万美元，较上年同期的11368．3万美元增加1982．1万美元，增幅为17．4％。今年上半年进口量1084．8t。较上年同期的712．7t增加372．1t，增幅为52．2％；进口额2443．6万美元，较上年同期的1715．2万美元增加728．4万美元，增幅达到42．5％。     

2002年前三季度我国钨品进出口分析

今年1—9月我国钨品出口14459．7t，较上年同期减少4660t，减幅24．4％；出口额1．27亿美元，较上年同期减少7277．6万美元，减幅36．5％。进口量1239t，较上年同期增加560．3t，增幅82．6％；进口额1749．4万美元，较上年同期增加253．9万美元，增幅17％。     

2005年上半年我国钨品进出口分析

今年上半年钨品出口量为14210．4t，与上年同期出口量12633．6t相比，增加1576．8t，增幅为12．5％；出口额达到了27882．8万美元，比上年同期的13350．4万美元增加14532．4万美元，增幅为108．9％。进口量1829．8t，比上年同期的1084．8t增加745t，增幅为68．7％；进口额3845万美元，比上年同期的2443．6万美元增加1401．4万美元，增幅达到57．3％。     

2010年前三季度我国钨品进出口分析

2010年前三季我国钨品出口19323．3吨，和上年同期的10261．8吨增加9061．5吨，增长88．3％；出口额为59255．8万美元，较上年同期的27136．7万美元增加32119．1万美元，增幅为118．4％。进口量3007．3吨，较上年同期的4484．4吨减少1477．1吨，减幅为32．9％；     

1998年一季度我国钨品出口情况简析

1998年1－3月我国钨品出口总额达3968．4万美元。从数量和出口额来看，好于去年同期；日本、美国和西欧市场需求都呈上升趋势。但价格仍在低价徘徊，有些产品的出口价格略有下降，影响今年的钨品出口效益。1钨品出口量和创汇额按出口市场分析，我国对日韩市场的出口额，日本比上年同期增加9％，而韩国减少7％。出口日本的仲钨酸按比上年同期859t增加了17t，但创汇额却比上年同期的453万美元减少了27万美元。对日本的钨品出口额增加主要是钨铁。1997年一季度出口日本的钨铁为72t，今年一季度达396t。出口额从用万美元增加到211万美元。出口韩…     

2003年上半年我国钨品进出口分析

1概况今年上半年钨品出口12658.7t,较上年同期的8459.6t增加4199.1t,增幅为49%;出口额10419.2万美元,较上年同期的7745.8万美元增加2673.4万美元,增幅为34.5%。进口量696.9t,较上年的471.7t增加225.2t,增幅为47.7%;进口额1687.9万美元,较上年的1037.6万美元增加650.3万美元,增幅为62.7%。2出口量表1是近5年上半年我国钨品出口比较。今年上半年的出口量比上年同期增加,原因是去年四季度以后,国外增加对中国钨的需求,价格缓慢上升,促使我国钨品出口量增加;同时,2002年上半年出口量较少,配额内钨品出口量仅为5962.8t,是全年钨品配额量的35%。到…     

转炉炉壳热应力分析

根据实际转炉建立实体模型。以有限元为手段,考虑了炉衬和炉壳材料的物性参数随温度变化的特点和炉衬与炉壳之间膨胀间隙,计算了转炉炉壳在温度载荷和炉衬膨胀压力同时作用下的热应力。所得结果可为转炉炉壳设计提供依据。     

焦炭热性能指标意义浅析

通过对焦炭在高炉内的历程及其变化规律的剖析,阐述焦炭热性能指标的意义,形象地把焦炭在高炉内的损耗分为三部分(M1,M2,M3)。指出M2对焦比及焦炭价格有一定的指导作用。     

Results of treatment of cancer of the cardia

Cancer of the cardia is traditionally discussed with cardiac cancer of the lower portion of the esophagus and upper gastric cancer invading the esophagus, and the specific characteristics of cancer of the cardia have never been clearly defined. We reviewed the outcome of 172 patients with adenocarcinoma of the cardia who had undergone radical surgery between 1949 and 1994 in the Division of Gastrointestinal Surgery of the Cancer Institute Hospital. The centers of the tumors were located within 2 cm above and below the boundary between the esophagus and the stomach, and their longitudinal diameter was less than 8 cm. We divided the patients into an early period (1949-1979; n = 79) and a late period (1980-1994; n = 93), and focused on the historical transition. There were no differences in patient gender or histology between the two periods. However, the late period was associated with fewer cases of esophageal invasion and shorter longitudinal diameter, as the age of the population advanced. The number of advanced cancers such as the localized and infiltrative type had decreased, and early cancer and early clinical stage had become more common, but despite the fact that the number of early cancers had increased, extended dissection, such as thoracic and paraaortic lymph node dissection, was performed more frequently. By clinical stage, the long-term outcome markedly improved in Stage I patient in the late period, and tended to improve in Stage II and III patients. This appears to have been attributable to the prevention of micrometastasis by extended dissection, although the number of early cancers is another major potential cause. There were no differences in the outcome of Stage IV patients between the two periods, and further advances in multimodality therapy must be awaited. The range of resection is basically proximal gastrectomy, and if there are adequate indications, the prognosis is favorable. In view of the status of lymphatic flow and lymph node metastasis, and long-term results, lateroaortic lymph node dissection is important. Since the number of early cancer patients has been increasing, if intraabdominal recurrence is prevented, intrathoracic lymph node dissection will contribute greatly to the outcome of such patients.     

The effect of amount of possession of the trait of hostility on accuracy of perception of hostility in others.

Some theories of personality hold that an individual's perception of others is influenced by his own personality characteristics; more specifically, that a trait of low social value will be projected more into others, and that insight into the possession of these characteristics reduces this distortion. These 2 hypotheses were tested by having a group of college students rate each other (including themselves) on degree of friendliness or hostility. Agreement with group rating about self yielded the insight score. In general, the hypotheses were supported; the "friendly" Ss were most accurate in their perception of others, and insight was positively associated with accurate perception. From Psyc Abstracts 36:04:4HL16M. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Comparison of rates of infection of two methods of emergency ventricular drainage

The rates of infection of two methods of external ventricular drainage in use at Atkinson Morley's Hospital--namely, (a) percutaneous drainage with Rickham reservoirs and (b) tunnelled ventriculostomies--were compared in this retrospective review. Percutaneous drainage of CSF with Rickham reservoirs was associated with a 27% rate of infection as identified by positive microbiological cultures; tunnelled ventriculostomy catheters had a 10% infection rate. The difference in the infection rate between the two methods was statistically significant (P < 0.015). Other variables examined, including the age and sex of the patients and the reasons for ventricular drainage, were not associated with an increased rate of infection. Most infections from either method were caused by a coagulase negative staphylococcus. The average duration of ventricular drainage before identification of positive cultures was 5.7 days for Rickham reservoirs and 6.0 days for ventriculostomies.     

浅析《野草》的版画特征

鲁迅先生一生热爱美术作品,对版画中木刻兴趣尤甚.<野草>作为其"写心之作",亦呈现出一些与木刻版画一致的审美特征:一是具有木刻版画的色彩特征,多对比、多冷色,有阴郁的美感;二是具有木刻版画的力度特征,环境描写、人物刻画处处刀锋毕现,遒劲有力,有一种"力之美".     

四辊破碎机车刀架的改造

针对四辊破碎机车刀架车削中存在的几个问题,详细介绍了电动车刀架的结构和工作原理,建立主要设计参数的数学表达式,并进行适当的分析。改造后,这种电动车刀架运行平稳、可靠、方便、省力,取得了预期的效果。     

Effect of antibiotics of chemotaxis of human leukocytes

The effect of 20 different antibiotics on chemotaxis by human neutrophils was studied. Human leukocytes incubated with chloramphenicol, rifampin, sodium fusidate, and tetracyclines in vitro showed markedly depressed migration. The mechanisms by which these antibiotics affect leukotaxis are discussed.