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2023 1

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2019 2

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关键词

“纺织科学与工程”学科 1

产业用纺织品 1

仿生纺丝 1

力学增强策略 1

功能储备 1

厚度控制 1

多级结构 1

天然气水合物；勘探与试采；储量巨大；研究现状；发展战略 1

战略石油储备 1

智能服装 1

板形刚度 1

生物基纤维 1

甲醇 1

纤维应用 1

纺、织、染整 1

纺织纤维 1

综合等储备负荷分配 1

轧机弹跳方程 1

连轧张力 1

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Optimal dynamic emergency reserve activation using spinning, hydro and demand-side reserves

S. Surender REDDY,P. R. BIJWE,A. R. ABHYANKAR

《能源前沿（英文）》 2016年第10卷第4期页码 409-423 doi: 10.1007/s11708-016-0431-9

摘要： This paper proposes an optimal dynamic reserve activation plan after the occurrence of an emergency situation (generator/transmission line outage, load increase or both). An optimal plan is developed to handle the emergency, using the coordinated action of fast and slow reserves, for secure operation with minimum overall cost. It considers the reserves supplied by the conventional thermal generators (spinning reserves), hydro power units and load demands (demand-side reserves). The optimal backing down of costly/fast reserves and bringing up of slow reserves in each sub-interval in an integrated manner is proposed. The proposed reserve activation approaches are solved using the genetic algorithm, and some of the simulation results are also compared using the Matlab optimization toolbox and the general algebraic modeling system (GAMS) software. The simulation studies are performed on the IEEE 30, 57 and 300 bus test systems. These results demonstrate the advantage of the proposed integrated/dynamic reserve activation plan over the conventional/sequential approach.

关键词： demand-side reserves dynamic reserve activation approach hydro power units post contingency sequential reserve activation approach spinning reserves

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Biding strategy of vehicle parking for participating in energy and spinning reserve markets

Ali MANSOORI,Rahmat AAZAMI,Ramin SAYADI

《能源前沿（英文）》 2014年第8卷第4期页码 403-411 doi: 10.1007/s11708-014-0333-7

摘要： In this paper a model for suggesting a smart parking that involves a set of electric cars is presented to auction the management ability and correct parking planning in reserve spinning market, secondary energy market and grid. Parking interest under various scenarios is analyzed and its effective results are presented by a valid model. Besides, particle swarm optimization algorithm is used for calculating maximum benefit.

关键词： vehicle-to-grid (V2G) spinning reserve energy secondary market smart parking

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Real-time task processing method based on edge computing for spinning CPS

Shiyong YIN, Jinsong BAO, Jie LI, Jie ZHANG

《机械工程前沿（英文）》 2019年第14卷第3期页码 320-331 doi: 10.1007/s11465-019-0542-1

摘要： Spinning production is a typical continuous manufacturing process characterized by high speed and uncertain dynamics. Each manufacturing unit in spinning production produces various real-time tasks, which may affect production efficiency and yarn quality if not processed in time. This paper presents an edge computing-based method that is different from traditional centralized cloud computation because its decentralization characteristics meet the high-speed and high-response requirements of yarn production. Edge computing nodes, real-time tasks, and edge computing resources are defined. A system model is established, and a real-time task processing method is proposed for the edge computing scenario. Experimental results indicate that the proposed real-time task processing method based on edge computing can effectively solve the delay problem of real-time task processing in spinning cyber-physical systems, save bandwidth, and enhance the security of task transmission.

关键词： edge computing real-time task scheduling CPS spinning

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Finite element modeling of counter-roller spinning for large-sized aluminum alloy cylindrical parts

Dawei ZHANG, Fan LI, Shuaipeng LI, Shengdun ZHAO

《机械工程前沿（英文）》 2019年第14卷第3期页码 351-357 doi: 10.1007/s11465-019-0528-z

摘要： Counter-roller spinning (CRS), where the mandrel is replaced by rollers, is an effective means of manufacturing large-sized, thin-walled, cylindrical parts with more than 2500 mm diameter. CRS is very complex because of multi-axis rotation, multi-local loading along the circumference, and radial-axial compound deformation. Analytical or experimental methods cannot fully understand CRS. Meanwhile, numerical simulation is an adequate approach to investigate CRS with comprehensive understanding and a low cost. Thus, a finite element (FE) model of CRS was developed with the FORGE code via meshing technology, material modeling, determining the friction condition, and so on. The local fine mesh moving with the roller is one of highlights of the model. The developed 3D-FE model was validated through a CRS experiment by using a tubular blank with a 720 mm outer diameter. The developed 3D-FE model of CRS can provide a basis for parameter optimization, process control, die design, and so on. The data on force and energy predicted by the 3D-FE model can offer reasonable suggestions for determining the main mechanical parameters of CRS machines and selecting the motors. With the predicted data, an all-electric servo-drive system/machine with distributed power was designed in this work for CRS with four pairs of rollers to manufacture a large-sized, thin-walled, cylindrical part with 6000 mm diameter.

关键词： large-sized cylindrical part counter-roller spinning aluminum alloy finite element method distributed power

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Best operating conditions to produce hydroxyapatite nanoparticles by means of a spinning disc reactor

A. F. D’ Intino,B. de Caprariis,M.L. Santarelli,N. Verdone,A. Chianese

《化学科学与工程前沿（英文）》 2014年第8卷第2期页码 156-160 doi: 10.1007/s11705-014-1427-9

摘要： In this work, Mg doped hydroxyapatite (Mg-HAP) nanoparticles were produced by a reaction-precipitation process by using a spinning disc reactor (SDR) at high rotational speed. The production process of these nanoparticles consisted of the neutralization reaction between two aqueous solutions of calcium chloride and ammonia orthophosphate at room temperature. By operating at pH= 10, a high purity Mg-HAP nanoparticles were obtained. In particular, they were 51 nm in average size when the two reagents were fed over the disc symmetrically at 3 cm from the disc center and a rotational speed of the disc reactor equal to 1400 r/min was adopted.

关键词： hydroxyapatite nanoparticles spinning disc reactor

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Techno-economic assessment of providing control energy reserves with a biogas plant

Ervin Saracevic, David Woess, Franz Theuretzbacher, Anton Friedl, Angela Miltner

《化学科学与工程前沿（英文）》 2018年第12卷第4期页码 763-771 doi: 10.1007/s11705-018-1776-x

摘要：

Grid stability is being challenged by the increasing integration of power plants with volatile power generation into the energy system. Power supply fluctuations must be compensated by energy system flexibility. The storability of the energy carrier enables biogas plants to generate power flexibly. In this study, the technical and economic effects of providing positive secondary control energy reserves with an Austrian biogas plant were assessed. The plant’s main focus lies in biomethane production with the option of heat and power generation through combined heat and power (CHP) units. A detailed simulation model of the investigated biogas plant was developed, which is presented in this work. Ex-post simulations of one year of flexible plant operation were conducted with this model. The findings show that the installed biogas storage capacity is sufficient to provide control energy reserves while simultaneously producing biomethane. Profitability of providing control energy reserves largely depends on the prices at the control energy market and on CHP unit start-up costs. A cost efficiency analysis demonstrated that investing in a hot water tank with a volume of 5 m³ for short-term heat storage turned out to be economically viable.

关键词： biogas plant process simulation control energy reserves economic assessment gas storage

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以“功能”储备补足“资源”储备——甲醇战略储备替代1/10~1/5的石油战略储备

金涌,陈丙珍

《中国工程科学》 2008年第10卷第11期页码 4-6

摘要：

对世界所有大国而言，石油战略储备是十分重要的。为了满足国家安全的需要，世界不同国际组织如联合国、欧盟等都建议设立3个月的石油战略储备。对于中国而言，这就需要战略储备石油3×10⁷~9×10⁷ t，这需要一个长时间段和大量资金注入才能完成。如果基于“功能”储备补足“资源”储备的一个新理念来思考，这一目标可以较容易地完成。即储备一定百分数的甲醇来替代石油，则国家安全也可以得到保障。

关键词：功能储备战略石油储备甲醇

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Effect of repeated gonadotropin stimulation on ovarian reserves and proliferation of ovarian surface

Linlin LIANG, Bei XU, Guijin ZHU

《医学前沿（英文）》 2009年第3卷第2期页码 220-226 doi: 10.1007/s11684-009-0037-2

摘要： This study aimed to evaluate the effect of repeated ovarian stimulation (OS) on the ovarian follicular population and morphology in female mice and its influence on the embryo’s developmental ability, and the profile of the ovarian surface epithelium (OSE). A total of 75 mice were enrolled in this experiment and randomly assigned into three groups: repeated ovarian stimulated group [ =25; receiving 5 IU pregnant mare serum gonadotrophin (PMSG) and human chorionic gonadotropin (hCG) at 6 day intervals for 5 cycles]; single ovarian stimulated group ( =25; receiving 5 IU PMSG and hCG for 1 cycle), and control group ( =25; without additional treatment). The follicle number at various stages and the morphologies were recorded respectively in the three groups. The harvested oocytes or embryos, cleavage rate, good quality embryo rate, and blastocyst production rate were counted and calculated, and the proliferations of ovarian surface epithelium were evaluated respectively. In the three groups, the single ovarian stimulation treatment significantly increased the mean number of ovarian oocytes or embryos (39.25±10.77 one-cell embryos/female); on the other hand, repeated gonadotropin stimulation obtained the lowest mean number (5.15± 2.81 eggs/female, <0.01). Repeated ovarian stimulation also tended to decrease normal follicles of primary follicles (66.67%) and secondary follicles (72.86%), and got the lowest cleavage rate (67.47%), lowest good quality embryo rate (2.41%), and lowest blastocyst production rate (0). The OSE cells adjacent to the antral follicles and corpus luteum (CL) in the repeated ovarian stimulated group (81.8%) had a significantly higher proliferation rate than the other groups. The proliferation rate of the OSE in the single ovarian stimulated group (56.4%) was significantly higher than that in the control group (37.5%) ( <0.01). In conclusion, single ovarian stimulation may produce more oocytes/embryos. However, repeated gonadotropin stimulation may have a negative effect on the ovarian follicular quality, the number of mature retrieved oocytes, and the embryo quality, even increasing the chance of ovarian cancer.

关键词： gonadotropin-releasing hormone ovarian reserve embryo developmental ability ovarian surface epithelium

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源于自然的纺丝——高性能生物基纤维的工程化制备及应用 Review

许宗溥, 吴明瑞, 叶琦, 陈东, 刘凯, 柏浩

《工程（英文）》 2022年第14卷第7期页码 100-112 doi: 10.1016/j.eng.2021.06.030

摘要：

许多天然纤维具有轻质、高强、高韧的特点，其性能优势源于从分子到宏观尺度的多级结构。生产这些纤维的纺丝系统也非常高效，它们为研究人员利用人工纺丝制备高性能生物基纤维提供了诸多灵感。除了优异的力学性能，生物基纤维还被赋予一系列新功能，从而拓展了其在智能织物、电子传感、生物医学等领域的应用。本文概述了近年来生物基纤维的研究进展，详细讨论了不同的仿生纺丝方法、纤维的力学增强策略、纤维的多元化应用。同时，提出了重现天然纺丝系统及认识其动态纺丝过程中的挑战，并展望了生物基纤维的未来发展。

关键词：生物基纤维多级结构仿生纺丝力学增强策略纤维应用

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Design of nanofibre interlayer supported forward osmosis composite membranes and its evaluation in fouling study with cleaning

《环境科学与工程前沿（英文）》 2022年第16卷第9期 doi: 10.1007/s11783-022-1550-7

摘要：

• A fine fibre (40–60 nm diameter) interlayer (~1 µm thickness) was electrospun.

关键词： Forward osmosis Electro-spinning Interfacial polymerisation Fouling Polyvinylidene fluoride

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天然气水合物资源勘探与试采技术研究现状与发展战略

付强,周守为,李清平

《中国工程科学》 2015年第17卷第9期页码 123-132

摘要：

天然气水合物是甲烷等烃类气体与水在高压低温条件下形成的笼形化合物，俗称可燃冰，将有望成为继页岩气、致密气、煤层气、油砂等之后的储量最为巨大的接替能源，主要分布在北极冻土带和沿海大陆架300~3000 m水深的深水区，初步估计其资源量为全球含碳化合物的两倍，其中约95 %储存在深海区域；与此同时，深水浅层弱胶结水合物的无序分解等潜在工程地质灾害、温室效应等也已引起世界各国的高度重视，因此，天然气水合物资源安全高效开发和环境风险并重，成为当前世界科技创新的前沿。本文回顾了国内外天然气水合物资源勘探和试采技术研究进展，在此基础上，针对我国海域潜在目标区以及我国已经获取的天然气水合物样品的相关特性，提出了我国天然气水合物资源勘探开发技术方向。

关键词：天然气水合物；勘探与试采；储量巨大；研究现状；发展战略

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让人们穿得更好——21世纪纺织科学与工程学科的前沿概述

姚穆

《中国工程科学》 2003年第5卷第4期页码 47-49

摘要：

“纺织科学与工程”学科多年来有了很大发展，中国人民告别了缺吃少穿的历史。纺织品和服装在我国的国民经济中占相当重要的地位，出口创汇和顺差占显著的位置。为了迎接新世纪的挑战，21世纪的纺织科学与工程学科的前沿将主要围绕着发展开发新品种，实现新功能；引进高新科学技术，加速改造纺织科学与工程学科；新型纺织染整加工新技术与设备的发展；纺织生产、经营、销售、交付、运输、资金等新的管理运转模式的转变等四个方面。21世纪将是产业用纺织品飞速发展的时代。

关键词： “纺织科学与工程”学科智能服装产业用纺织品纺织纤维纺、织、染整

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中国深部地下空间储能的理论和技术挑战 Review

杨春和, 王同涛, 陈海生

《工程（英文）》 2023年第25卷第6期页码 168-181 doi: 10.1016/j.eng.2022.06.021

摘要：

Deep underground energy storage is the use of deep underground spaces for large-scale energy storage, which is an important way to provide a stable supply of clean energy, enable a strategic petroleum reserve, and promote the peak shaving of natural gas. Rock salt formations are ideal geological media for large-scale energy storage, and China is rich in salt rock resources and has a major shortage of energy storage space. Compared with the salt domes in other countries, the salt rock formations in China are typical lacustrine bedded salt rocks characterized by thin beds, high impurity content, and many interlayers. The development of large-scale energy storage in such salt formations presents scientific and technical challenges, including: ① developing a multiscale progressive failure and characterization method for the rock mass around an energy storage cavern, considering the effects of multifield and multiphase coupling; ② understanding the leakage evolution of large-scale deep underground energy storage caverns; ③ understanding the long-term performance evolution of large-scale deep underground energy storage caverns; ④ developing intelligent construction technologies for the deep underground salt caverns used for energy storage; and ⑤ ensuring the long-term function of deep underground energy storage spaces. The solution to these key scientific and technological problems lies in establishing a theoretical and technical foundation for the development of large-scale deep underground energy storage in China.

关键词： Energy reserves Deep underground energy storage Bedded rock salt Salt cavern Rock mechanics

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板带轧制工艺控制理论概要

张进之

《中国工程科学》 2001年第3卷第4期页码 46-55

摘要：

以最小阻力定律、体积不变条件和秒流量相等条件为内容的经典轧制理论，经试验、演绎形成了较完整的轧制应用技术科学体系，这种体系所反映的是静态规律。在轧制理论发展中引入控制论、信息论、计算机科学等高新技术，对轧制过程进行控制。在轧制理论发展史上，弹跳方程建立之前是以力学为基础建立的经典轧制理论，之后为以力学和控制论为基础建立的基本轧制工艺控制理论。文章提出工艺控制理论概念，是在基本轧制工艺控制理论的基础上建立的新的理论体系，主要内容包括：在连轧张力理论中反映了张力的负反馈，建立了连轧张力理论体系；在厚控过程中，解决扰动的检测问题；在板形理论中，定义了对偶参数，确立了与厚控理论相似的板形理论体系。

关键词：连轧过程控制连轧张力厚度控制板形刚度轧机弹跳方程综合等储备负荷分配