复杂性未稳定性颅脑损伤、脑出血早期护理策略(附7例病例报告)

目的探讨复杂性未稳定性颅脑损伤、脑出血患者的早期护理策略。方法回顾性分析2016年10月至今收治的7例复杂性未稳定性颅脑损伤、脑出血患者的临床资料及护理方法。结果 7例患者中,6例术后恢复良好,1例为保守治疗,严密观察,避免手术,恢复良好。结论实施早期护理,能做好充分的手术准备,及时发现病情变化,防治各种并发症,是提高手术成功率、减少致残率、减少医疗纠纷的关键所在。

6例急性复杂性严重颅脑损伤诊治体会

目的总结急性复杂性未稳定性严重性颅脑损伤患者,诊断治疗经验。方法回顾分析2016年10月至2019年4月收治的6例急性、复杂性、未稳定性、严重性颅脑损伤典型病例的临床资料。结果6例病人中,男5例,女1例,平均年龄40岁。受伤到入院时间平均1.3h,5例恢复良好,1例死亡。所有患者均行手术治疗。结论急性复杂性未稳定性严重性颅脑损伤患者病情变化快,及时发现病情变化,复查脑CT,及早清除颅内血肿,是提高手术成功率,减少致残率、死亡率,减少医疗纠纷的关键。

New progress in the Holocene climate and agriculture research in China

Global climate change and its possible ecological consequences have become the focused issue(IPCC,2007;Mann et al.,2008;Ding et al.,2009).The Holocene contains the analogous characteristic of future climatic change and the continuous agriculture activity,providing the ideal"similar pattern"for studying the climate change and human adaption and impact in the future.Based on the recent studies of stalagmite,ice core,ocean,and lake etc.,the paper introduces the new progress in the Holocene climate and agriculture research in China as follows:(1)Discuss the variability,amplitude,and unstable characteristic of climate,as well as the abrupt events and mechanisms of climate.(2)Analyze the botanical index records for studying the early agriculture.(3)Review the agricultural origin,expanding,and development.(4)Reveal the style and intensity of early agriculture and understand the agricultural impact and adaption to the environmental changes.(5)Introduce ongoing research projects in China and emphasize the significance of increasing the dating precision and the indicative effectiveness of proxies.(6)Realize how the ecosystem and environmental factors respond to the increasing temperature process,understand how the human adapt to the rapid climate change,and provide the scientific basis for assessing the effects of climate change and the human adaption in the future.

Correction of Wave Surge Forces to Improve Surf-Riding/Broaching Vulnerability Criterion Check Accuracy

Surf-riding/broaching is one of the five stability failure modes to be included into the International Maritime Organization (IMO) second generation intact stability criteria (which are risk-based stability criteria) that can ensure the safety of ships in actual seaways more effectively. This study focuses on the influence of wave surge force prediction accuracy on surf-riding/broaching vulnerability criterion check result. Firstly, it is demonstrated that the wave surge force prediction method adopted in the current vulnerability criterion check procedure is not accurate and may lead to wrong conclusions. The experimental data from captive model test and the numerical result based on 3D panel method both indicate that the diffraction effect must be considered to correctly predict the wave surge forces. Besides, sophisticated methods are not suitable for Level 2 vulnerability criterion check due to their complexity. Therefore, an empirical formula for wave surge force correction based on sample ship calculation results is proposed. The proposed empirical correction formula can effectively improve the vulnerability criterion check accuracy and thus contribute to the design and safety of the ships which are vulnerable to this stability failure mode. © 2017, Shanghai Jiaotong University and Springer-Verlag GmbH Germany.

GENERALIZED PREDICTIVE CONTROL FOR DIFFERENCE-ALGEBRAIC BIOLOGICAL ECONOMIC SYSTEMS

In this paper, a nonlinear difference-algebraic system is used to model some populations with stage structure when the harvest behavior and the economic interest are considered. The stability analysis is studied at the equilibrium points. After the non- linear difference-algebraic system is changed into a linear system with the unmodeled dynamics, a generalized predictive controller with feedforward compensator is designed to stabilize the system. Adaptive-network-based fuzzy inference system （ANFIS） is used to make the unmodeled dynamic compensated. An example illustrates the effectiveness of the proposed control method.