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1.
太平天国在14年的革命历程中产生了大量档案,然而,在国内,这些档案随着太平天国运动的失败几经磨难、丢失和损毁。幸而,在国外还有大量的太平天国档案得以保存。文章在前贤的基础上对流失海外的太平天国档案进行整合汇总,将收藏在海外的太平天国档案调查清楚,为将来追索这些太平天国档案提供参考。 相似文献
2.
Serum Urea:Albumin Ratio as a Prognostic Marker in Critical Patients With Non-Chronic Kidney Disease
D. B. Gundpatil B. L. Somani T. K. Saha M. Banerjee 《Indian journal of clinical biochemistry : IJCB》2014,29(1):97-100
Routine laboratory investigations play an important role in estimating the risk of mortality in intensive care unit (ICU) patients. The significance of urea:albumin ratio (UAR) in predicting the stay and mortality of ICU patients is not known. It is a retrospective study of patients admitted to ICU (n = 412) with non-chronic kidney disease (non-CKD). Receiver-operating characteristics (ROC) analysis for predicting mortality was carried out to find area under curve (AUC) and threshold levels. Analysis of survival probability was carried out by Kaplan–Meier method and Log-rank test. The AUC to predict mortality were 0.695, 0.767 and 0.791 for serum albumin, urea and UAR, respectively. The threshold levels for albumin, urea and UAR were 2.8 g/dL, 53 mg/dL, and 23.44 mg/g, respectively. The highest odds ratio (OR) of 9.75 to predict mortality at threshold level was observed for UAR, while OR were 7.0 and 3.62 for serum urea and albumin, respectively. The serum urea above and albumin below threshold level were associated with increase in ICU stay of >3 days but the highest OR of 4.73 to predict stay of >3 days was observed for UAR. Kaplan–Meier survival analysis shows significant (p < 0.001) difference at the threshold value of UAR. Serum urea and albumin are found to be an independent predictor for the mortality and stay; however an increased UAR value is the best parameter in predicting mortality and stay in ICU patients with non-CKD illness. 相似文献
3.
This paper presents a nonlinear dynamic model for simulation and analysis of a kind of parametrically excited vibration of
stay cable caused by support motion in cable-stayed bridges. The sag, inclination angle of the stay cable are considered in
the model, based on which, the oscillation mechanism and dynamic response characteristics of this kind of vibration are analyzed
through numerical, calculation. It is noted that parametrically excited oscillation of a stay cable with certain, sag, inclination
angle and initial static tension force may occur in cable-stayed bridges due to deck vibration under the condition that the
natural frequency of a cable approaches to about half of the, first model frequency of the bridge deck system. A new vibration
control system installed on the cable anchorage is proposed as a possible damping system to suppress, the cable parametric
oscillation. The numerical calculation results showed that with the use of this damping system, the cable oscillation due
to the vibration of the deck and/or towers will be considerably reduced.
Project supported by National Natural Science Foundation of China (No. 59978044) 相似文献
4.
探讨隐元留日不归的原因,不能只看清初福建的政治形势,要更多地从隐元的个性特点以及日方的态度演变来考察,才不至于失之偏颇。隐元在宗教事业上的执着精进是根本内因,而中方时局演变和日方态度变化则是外因。在外因中,江户幕府赐地开创的特殊礼遇是关键。 相似文献
5.
Natalie Hart 《Emotional and Behavioural Difficulties》2013,18(2):196-212
Previous studies have focused on the views of excluded children or those finding themselves in Pupil Referral Units (PRUs). Few, however, have focused on exploring views from a resilience perspective. Studies linked to resilience have tended to focus on exploring factors through quantitative rather than qualitative measures. This piece of research aimed to explore the potential protective factors of one PRU through the valuable voices of children and staff. The views of six children aged between 9 and 13 years, all with varying forms of behavioural, emotional and social difficulties, and partway through a PRU placement, were explored through semi-structured interviews supported by the use of tools and techniques to facilitate discussion. The views of four staff members were also obtained. Findings reveal the powerful perspectives that children and young people can bring in relation to what might be helping them within a particular environment. A number of potential protective factors, both within the environment and within-child factors that may operate as mechanisms in fostering positive social and academic outcomes, are identified. Implications of these findings for professional practice, and for children finding themselves in PRU provision, are discussed, with a focus on reintegration and the potential impact of changing environments for these children. 相似文献
6.
This paper proposes a new numerical simulation method for analyzing the parametric vibration of stay cables based on the theory of nonlinear dynamic response of structures under the asynchronous support excitation. The effects of important parameters related to parametric vibration of cables, i.e., characteristics of structure, excitation frequency, excitation amplitude, damping effect of the air and the viscous damping coefficient of the cables, were investigated by using the proposed method for the cables with significant length difference as examples. The analysis results show that nonlinear finite element method is a powerful technique in analyzing the parametric vibration of cables, the behavior of parametric vibration of the two cables with different Irvine parameters has similar properties, the amplitudes of parametric vibration of cables are related to the frequency and amplitude of harmonic support excitations and the effect of distributed viscous damping on parametric vibration of the cables is very small. 相似文献
7.
ＩＮＴＲＯＤＵＣＴＩＯＮＣａｂｌｅ ｓｔａｙｅｄｂｒｉｄｇｅｓａｒｅｗｉｄｅｌｙａｐｐｌｉｅｄｉｎｍｏｄｅｒｎｂｒｉｄｇｅｓｔｒｕｃｔｕｒａｌｓｙｓｔｅｍ .Ｔｈｅｌａｒｇｅｓｔｓｐａｎｏｆｃａｂｌｅ ｓｔａｙｅｄｂｒｉｄｇｅｉｓｃｌｏｓｅｔｏ 1 0 0 0ｍｗｈｅｎｍａｎｙｎｅｗｍａｔｅｒｉａｌｓａｎｄｔｅｃｈｎｏｌｏｇｉｅｓａｒｅａｐｐｌｉｅｄ.Ｔｈｅｓｔａｙｃａｂｌｅｓａｒｅｉｍｐｏｒｔａｎｔｂｒｉｄｇｅｓｔｒｕｃｔｕｒｅｃｏｍｐｏｎｅｎｔｓｍｏｓｔｐｒｏｎｅｔｏｅｘｈｉｂｉｔｈｉｇｈａｍｐｌｉｔｕ… 相似文献
8.
重点探讨了三维前方交会法的原理及其在金属网架结构屋面施工的质量监测方法,保证施工质量,达到设计要求,为今后的安全运营提供了可靠的依据。同时为大型无支撑建筑屋面的变形监测提供了一种测量监测依据。 相似文献
9.
罗伯特·弗罗斯特（1874-1963）身为20世纪的诗人，却与其他现代诗人不同。他既有二十世纪的“音调”，又有接近于传统诗歌的诗体。为了说明弗罗斯特诗歌的文体特征，本文试从三个方面对他的诗歌《纯金难留》进行探讨：诗歌的选词、句法结构和语音模式。 相似文献
10.
自然是人类的母亲，可是随着科技的发展，人们为了满足一己之私往往无视自然的存在，肆意地对大自然进行掠夺，造成我们生态之居的恶化，人们普遍要求一种生态的关怀，这在当代文学上已十分明显地反映出来。本文欲对当代文学的这一现象进行归结和分析以期对生态文艺的建设尽自己的一份力量。 相似文献