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穿浪型双体高速船靠离泊风险研究及对策

交通企业管理 2024年第5期39卷 102-105页

作者：陶士陆薛非雷涛上海国远劳务服务有限公司大连长兴岛海事处武汉理工大学航运学院

双体穿浪型高速客滚船是最近30多年才研究发展起来的一种高性能的交通运输工具。双体穿浪型高速客滚船与其他类型的高速船相比,特别是在恶劣海况下的航行综合性能具有其他类型的高速船不可逾越的优势,是未来高性能高速船发展的一个方向...

双体穿浪型高速客滚船是最近30多年才研究发展起来的一种高性能的交通运输工具。双体穿浪型高速客滚船与其他类型的高速船相比,特别是在恶劣海况下的航行综合性能具有其他类型的高速船不可逾越的优势,是未来高性能高速船发展的一个方向。然而,穿浪型双体高速船的结构特点,使其在靠离泊作业过程中蕴含着一定的风险。随着穿浪型高速船向着大型化方向的发展,靠离泊操纵过程中的风险也越来越大,一旦在靠离泊过程中出现安全事故,造成的损失也越来越大。笔者通过对典型的穿浪型双体高速船在靠离泊过程中出现的风险进行归纳、分析和总结,提炼出对应的解决方案,以供此类船型或者类似特点的船舶在靠离泊作业时提供参考和借鉴。

关键词：穿浪型双体高速船靠离泊风险结构特点风流影响 LIPS操纵控制系统

Removal of dyes from wastewater by growing fungal pellets in a semi-continuous mode

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Frontiers of Chemical Science and Engineering 2017年第3期11卷 338-345页

作者： tao lu Qilei Zhang Shanjing Yao Key Laboratory of Biomass Chemical Engineering of Ministry of Education College of Chemical and Biological Engineering Zhejiang University Hangzhou 310027 China

To increase the efficiency of dye removal from wastewater using mycelial pellets, a bubble column reactor with a simple structure was designed and efficiently used to remove dyes from solution containing dyes. The mycelial pellets were prepared by marine fungus Aspergillus niger ZJUBE-1. Eight dyes were tested as dye targets for the adsorption capacity of mycelial pellets and good removal results were obtained. Eriochrome black T was selected as a model dye for characterizing the adsorption processes in detail. The measurement results of Zeta potential and FT- IR analysis indicate that the electrostatic attraction may play a key role in the biosorption process. The bubble column reactor was utilized to study the batch dye-removal efficiency of mycelial pellets. A re-culture process between every two batches, which was under non-sterile condition, successfully enhanced the utilization of mycelium bio- mass. The dye removal rate is 96.4% after 12 h in the first batch and then decreases slowly in the following batches. This semi-continuous mode, which consists of commutative processes of dye-removal and re-culture, has some outstanding advantages, such as low power consumption, easy operation, high dye removal rate, and efficient biomass utilization.

关键词： dye mycelial pellets marine fungus bubble column reactor semi-continuous biosorption

Inverse Heat Conduction Estimation of Inner Wall Temperature Fluctuations under Turbulent Penetration

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Journal of Thermal Science 2017年第2期26卷 160-165页

作者： GUO Zhouchao lu tao LIU Bo School of Mechanical and Electrical Engineering Beijing University of Chemical TechnologyBeijing100029China Science and Technology on Space Physics Laboratory Beijing100076China

Turbulent penetration can occur when hot and cold fluids mix in a horizontal T-junction pipe at nuclear plants. Caused by the unstable turbulent penetration, temperature fluctuations with large amplitude and high frequency can lead to time-varying wall thermal stress and even thermal fatigue on the inner wall. Numerous cases, however, exist where inner wall temperatures cannot be measured and only outer wall temperature measurements are feasible. Therefore, it is one of the popular research areas in nuclear science and engineering to estimate temperature fluctuations on the inner wall from measurements of outer wall temperatures without damaging the structure of the pipe. In this study, both the one-dimensional(1D) and the two-dimensional(2D) inverse heat conduction problem(IHCP) were solved to estimate the temperature fluctuations on the inner wall. First, numerical models of both the 1D and the 2D direct heat conduction problem(DHCP) were structured in MATLAB, based on the finite difference method with an implicit scheme. Second, both the 1D IHCP and the 2D IHCP were solved by the steepest descent method(SDM), and the DHCP results of temperatures on the outer wall were used to estimate the temperature fluctuations on the inner wall. Third, we compared the temperature fluctuations on the inner wall estimated by the 1D IHCP with those estimated by the 2D IHCP in four cases:(1) when the maximum disturbance of temperature of fluid inside the pipe was 3℃,(2) when the maximum disturbance of temperature of fluid inside the pipe was 30℃,(3) when the maximum disturbance of temperature of fluid inside the pipe was 160℃, and(4) when the fluid temperatures inside the pipe were random from 50℃ to 210℃.

关键词： IHCP SDM Temperature fluctuations Turbulent penetration

Large-eddy Simulation of Fluid Flow and Heat Transfer in a Mixing Tee Junction

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Chinese Journal of Mechanical Engineering 2012年第6期25卷 1144-1150页

作者： lu tao WANG Yongwei WANG Kuisheng School of Mechanical and Electrical Engineering Beijing University of Chemical TechnologyBeijing 100029China

The temperature fluctuation caused by thermal striping phenomena of hot and cold fluids mixing results in cyclical thermal stress fatigue failure of the pipe wall. Mean temperature difference between hot and cold fluids was often used as thermal load in previous analysis of thermal fatigue failure, thereby the influences of the amplitude and frequency of temperature fluctuation on thermal fatigue failure were neglected. Based on the mechanism of flow and heat transfer which induces thermal fatigue, the turbulent mixing of hot and cold water in a tee junction is simulated with FluENT platform by using the Large-eddy simulation（LES） turbulent flow model with the sub-grid scale（SGS） model of Smagorinsky-Lilly（SL） to capture the amplitude and frequency of temperature fluctuation. In a simulation case, hot water with temperature of 343.48 K and velocity of 0.15 m/s enters the horizontal main duct with the side length of 100 mm, while cold water with temperature of 296.78 K and velocity of 0.3 m/s enters the vertical branch duct with the side length of 50 mm. The numerical results show that the mean and fluctuating temperatures are in good agreement with the previous experimental data, which describes numerical simulation with high reliability and accuracy; the power spectrum density（PSD） on top wall is higher than that on bottom wall（as the frequency less than 1 Hz）, while the PSD on bottom wall is relatively higher than that on top wall （as the frequency of 1-10Hz）. The temperature fluctuations in full mixing region of the tee junction can be accurately captured by LES and can provide the theoretical basis for the thermal stress and thermal fatigue analyses.

关键词： Large-eddy simulation flow heat transfer tee junction

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克菌丹制备工艺的专利技术研究

化工管理 2024年第23期 149-151,164页

作者：陆涛曹婧国家知识产权局专利局专利审查协作广东中心广东广州510530

克菌丹(Captan)是一种保护性农用杀菌剂,是Chevron化学公司开发的一种低毒、广谱常用的有机硫类农业杀菌剂,对多种经济性农作物具有良好的杀菌保护作用,有着广泛的应用,是目前国内外最畅销的保护性杀菌剂之一。文章综述了国内外专利文...

克菌丹(Captan)是一种保护性农用杀菌剂,是Chevron化学公司开发的一种低毒、广谱常用的有机硫类农业杀菌剂,对多种经济性农作物具有良好的杀菌保护作用,有着广泛的应用,是目前国内外最畅销的保护性杀菌剂之一。文章综述了国内外专利文献中关于克菌丹制备工艺的研究进展和成果,为克菌丹新制备工艺的开发提供参考。

关键词：克菌丹杀菌剂制备工艺专利技术医药化工

基于微服务的企业综合管理信息系统(MIS)设计与实现

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办公自动化 2024年第10期29卷 18-21页

作者：李鹏程卢涛武汉工程大学计算机科学与工程学院武汉430205

当前企业管理离不开相关数据的准确性和实时性,建设基于微服务的企业综合管理信息系统可增强企业管理信息能力,实现各部门整体工作的协同优化。采用微服务架构在设计和开发的过程中可实现服务的快速部署和更改,,SpringCloud框架是微服...

当前企业管理离不开相关数据的准确性和实时性,建设基于微服务的企业综合管理信息系统可增强企业管理信息能力,实现各部门整体工作的协同优化。采用微服务架构在设计和开发的过程中可实现服务的快速部署和更改,,SpringCloud框架是微服务架构中的集成,它将一系列优秀的组件进行整合,企业综合管理信息系统采用前后端分离的架构模式,前端基于VUE框架技术搭建,后端采用SpringBoot框架,前端和后端可并行开发,以便于维护和升级。基于微服务的企业综合管理信息系统为企业提供一个便捷、高效的平台,提升管理效率,对企业的快速发展具有重要意义。

关键词：微服务 VUE SpringCloud SpringBoot 综合管理信息系统

Transient Performance Improvement in Tracking Control for a Class of Nonlinear Systems with Input Saturation

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Journal of Systems Science & Complexity 2018年第1期31卷 200-214页

作者： lu tao LAN Weiyao LI Zhibin Department of Automation Xiamen University Xiamen 361005 China Academy of Opto-Electronics Chinese Academy of Sciences Beijing 100094 China

This paper addresses the composite nonlinear feedback（CNF） control for a class of singleinput single-output nonlinear systems with input saturation to track a time varying reference target with good transient performance. The CNF control law consists of a tracking control law and a performance compensator. The tracking control law is designed to drive the output of the system to track the time varying reference target rapidly, while the performance compensator is used to reduce the overshoot caused by the tracking control law. The stability of the closed-loop system is established. The design procedure and the improvement of transient performance of the closed-loop system are illustrated with a numerical example and the controlled Van del Pol oscillator.

关键词： Composite nonlinear feedback input saturation nonlinear systems tracking control

Efficient decolorization of dye-containing wastewater using mycelial pellets formed of marine-derived Aspergillus niger

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Chinese Journal of Chemical Engineering 2017年第3期25卷 330-337页

作者： tao lu Qilei Zhang Shanjing Yao Key Laboratory of Biomass Chemical Engineering of Ministry of Education College of Chemical and Biological EngineeringZhejiang UniversityHangzhou 310027China

In order to improve the efficient decolorization of dye-containing water by biosorbent and understand the biosorption mechanism, the self-immobilization mycelial pellets were prepared using a marine-derived fungus Aspergillus niger ZJUBE-1, and an azo dye, Congo red was chosen as a model dye to investigate batch decolorization efficiency by pellets. The pellets as biosorbent showed strong salt and acid tolerance in biosorption process. The results for dye adsorption showed that the biosorption process fitted well with models of pseudo-second-order kinetic and Langmuir isotherm, with a maximum adsorption capacity of 263.2 mg·g^(-1) mycelium. During 6 batches of continuous decolorization operation, the mycelial pellets could possess efficient decolorization abilities(>98.5%).The appearance of new peak in the UV–Vis spectral result indicated that the decolorization process may also contain biodegradation. The mechanism studies showed that efficient biosorption ability of pellets only relies on the active zone on the surface of the pellet, which can be enhanced by nutrition supplement or be shifted outward by a reculture process.

关键词： Mycelial pellets Batch decolorization Nutrition supplement Re-culture Dye wastewater treatment Adsorption mechanism

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订合类多肽代谢药物的专利技术综述

化工管理 2024年第22期 71-73,79页

作者：陆涛曹婧国家知识产权局专利局专利审查协作广东中心广东广州510530

多肽调节着人体内各系统的生理功能。文章以共价键订合的多肽类(20个氨基酸以上)代谢药物为主要分析对象,主要涉及胰高血糖素样肽-1(GLP-1)、抑胃肽(GIP)、胰高血糖素(GCG)靶点的订合类多肽代谢药物,解读主要申请人的重点专利,总结现阶...

多肽调节着人体内各系统的生理功能。文章以共价键订合的多肽类(20个氨基酸以上)代谢药物为主要分析对象,主要涉及胰高血糖素样肽-1(GLP-1)、抑胃肽(GIP)、胰高血糖素(GCG)靶点的订合类多肽代谢药物,解读主要申请人的重点专利,总结现阶段订合类多肽类代谢药物的发展和研发思路,以期对订合多肽类代谢药物的改进和研发提供借鉴。

关键词：订合肽 GLP-1 GIP GCG 专利