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处理高炉渣的先进方法--干式成粒法 总被引:4,自引:0,他引:4
介绍了先进的高炉渣处理技术——干式成粒法,结合湘潭钢铁公司炼铁工序的实际情况,分析采用干式成粒法所带来的显著的经济效益。 相似文献
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M. Tsuchiya 《Journal of Systems and Software》1985,5(3):221-227
This paper presents an analytical model for evaluating the availability of distributed processing systems. The model, which is based on a well-known probability formula, has been implemented in FORTRAN and used for the design of a real-time distributed processing system that requires high availability. It is applied to a sample distributed processing system to illustrate its usefulness and to provide good insight into the design of highly available distributed processing systems. Effects of homogeneous/heterogeneous clustering and standby spare are illustrated. The concept of availability threshold where the distributed system may gain or lose availability over the individual processor availability is introduced. It has proven to be a valuable tool for the tradeoffs in the allocation of system requirements. The concluding remarks summarize the lessons learned and suggest cost-effective ways to achieve higher availability for the design of distributed processing systems. 相似文献
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循环模式DSG槽式太阳能集热器出口蒸汽温度控制策略研究 总被引:3,自引:0,他引:3
循环模式直接蒸汽发电(direct steam generation,DSG)强度变化的影响很大,并具有大滞后、大惯性、参数时变等特点。针对该控制对象,提出采用多模型切换受限增量广义预测控制策略,建立典型工况下的子模型并设计相应的控制器。按照跟踪实际工况的运行结果,根据模糊推理的隶属度概念评判子模型的匹配程度,选择适配的子模型和控制器整定参数,并采用输入增量加权控制律和等待周期法实现平滑切换和无扰切换。仿真分析表明,提出的控制策略与常规PI控制方法相比,具有响应速度快、无稳态偏差、系统输出波动小、降低了模型失配影响等优点。仿真结果验证了该控制模型和策略的可行性和有效性。 相似文献
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对DSG变速器换挡控制与液压操纵系统的结构进行了研究,并通过绘制出的DSG双离合变速器电子控制与操纵系统组成框图,以及挡位选择器换挡装置、换挡拨叉位置精确度控制装置及高速开关电磁阀的结构图,介绍了DSG变速器换挡控制方法,分析了DSG变速器的电控系统和液压操纵系统的工作原理. 相似文献
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Andreas Brodehl Alexey Meshkov Roman Myasnikov Anna Kiseleva Olga Kulikova Brbel Klauke Evgeniia Sotnikova Caroline Stanasiuk Mikhail Divashuk Greta Marie Pohl Maria Kudryavtseva Karin Klingel Brenda Gerull Anastasia Zharikova Jan Gummert Sergey Koretskiy Stephan Schubert Elena Mershina Anna Grtner Polina Pilus Kai Thorsten Laser Valentin Sinitsyn Sergey Boytsov Oxana Drapkina Hendrik Milting 《International journal of molecular sciences》2021,22(7)
About 50% of patients with arrhythmogenic cardiomyopathy (ACM) carry a pathogenic or likely pathogenic mutation in the desmosomal genes. However, there is a significant number of patients without positive familial anamnesis. Therefore, the molecular reasons for ACM in these patients are frequently unknown and a genetic contribution might be underestimated. Here, we used a next-generation sequencing (NGS) approach and in addition single nucleotide polymor-phism (SNP) arrays for the genetic analysis of two independent index patients without familial medical history. Of note, this genetic strategy revealed a homozygous splice site mutation (DSG2–c.378+1G>T) in the first patient and a nonsense mutation (DSG2–p.L772X) in combination with a large deletion in DSG2 in the second one. In conclusion, a recessive inheritance pattern is likely for both cases, which might contribute to the hidden medical history in both families. This is the first report about these novel loss-of-function mutations in DSG2 that have not been previously identi-fied. Therefore, we suggest performing deep genetic analyses using NGS in combination with SNP arrays also for ACM index patients without obvious familial medical history. In the future, this finding might has relevance for the genetic counseling of similar cases. 相似文献
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The receiver behavior of parabolic troughs in direct steam generation (DSG) has been studied under different experimental conditions. When cool water was fed into steel receiver pipes (Ø = 2.54 cm), the pipes deflected. This bend advanced like a wave from the inlet to the outlet end, having a deflection of about 6.5 cm at the center of each section (2.90 m long) in the parabolic trough module (14.5 m long and 2.5 m aperture). This phenomenon was due to a temperature difference of about 50°C in the circumferential direction. When the steel receiver pipe was changed to a copper receiver, the circumferential temperature difference was practically eliminated and no appreciable bending of the pipe was observed, hence DSG was obtained without these problems. 相似文献
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利用DTG和DSC技术对牛奶纤维的热学性质进行了测试和分析。测试结果显示,牛奶纤维吸湿性不高,热裂解从262.7℃开始,到317.6℃裂解达到高峰;拉伸实验表明,牛奶纤维的湿拉伸断裂强力和断裂伸长均较干态时为低。 相似文献
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Parabolic trough power plants are currently the most commercial systems for electricity generation. In this study, a transient numerical simulation of a solar power plant was developed by using direct steam generation (DSG) technology. In this system, condensate water from a Rankine cycle is pumped directly to solar parabolic trough collectors. The pressurized water is heated and evaporated before being superheated inside the solar collectors and directed back to the steam turbines, where the Rankine cycle is a reheated‐regenerative cycle. The plant performance with saturated steam production is compared with the performance of a superheated plant. A mathematical model of each system component is presented, with the solar power cycle modeled by the TRNSYS‐17 simulation program. Annual transient performance, including plant power and efficiency, is presented for both plants. As expected, the power of the superheated plant outperforms the saturated plant by approximately 45%, whereas the efficiency decreases by approximately 10%. Furthermore, the power of such plants is considerably improved under the weather of Makkah, 22.4°N, and it is approximately 40 MW for both the spring and autumn seasons. The annual generated energy is approximately 8062 MWh. The levelized electricity cost (LEC) was estimated for both the DSG and the corresponding synthetic oil plants. The DSG plant has an approximately 3% higher LEC than a synthetic oil plant with heat storage and an approximately 11.2% lower LEC than an oil plant if the plant has no storage. Copyright © 2016 John Wiley & Sons, Ltd. 相似文献