scholarly journals Design and Performance Test of Large-Scale Cryopump Used in Space Environment Simulation System

2015 ◽  
Author(s):  
Y.S. Zhao ◽  
R.P. Shao ◽  
L.C. Sun ◽  
W. Sun ◽  
Y. Wang ◽  
...  
Keyword(s):  
Large Scale ◽  
Performance Test ◽  
Simulation System ◽  
Space Environment ◽  
Environment Simulation ◽  
And Performance

scholarly journals Development and performance test of dynamic simulation system for X-ray pulsar navigation

2017 ◽  
Vol 66 (5) ◽  
pp. 059701
Author(s):  
Xu Neng ◽  
Sheng Li-Zhi ◽  
Zhang Da-Peng ◽  
Chen Chen ◽  
Zhao Bao-Sheng ◽  
...  
Keyword(s):  
Dynamic Simulation ◽  
Performance Test ◽  
Simulation System ◽  
X Ray ◽  
And Performance ◽  
Pulsar Navigation

scholarly journals FCB system analysis and performance test results of 1000MW ultra supercritical coal fired power station

2021 ◽  
Vol 233 ◽  
pp. 04013
Author(s):  
Zhang Shuying ◽  
Li Lin ◽  
Zhang Cuihua ◽  
Gao Yan ◽  
Luan Tao
Keyword(s):  
Large Scale ◽  
Performance Test ◽  
System Analysis ◽  
Power Grid ◽  
Test Results ◽  
Power Station ◽  
Operation Conditions ◽  
Auxiliary Power ◽  
Short Period ◽  
And Performance

Fast cut back (FCB) function can make the power station restore the external power supply in a very short period of time from the auxiliary power operation conditions through self-help mode. In case of large-scale power grid failure, FCB further ensures the safety of the main equipments and bring great benefits for the rapid recovery of local power grid. Taking Taishan Power Plant 1000 MW unit as a research object, the feasibility scheme of adding FCB function was analyzed and demonstrated on the basis of making full use of the original equipment design margin. The FCB test of TMCR 100% load was completed. The test results and problems during FCB process were discussed, and the corresponding countermeasures were proposed.

Research and Application of Disturbance Environment Simulation for Power Dispatching System Considering Electrical and Non-Electrical Data

2014 ◽  
Vol 1008-1009 ◽  
pp. 679-683
Author(s):  
Yan Wang ◽  
Yong Gang Zhang ◽  
Wei Jin Zhuang ◽  
Fang Yu
Keyword(s):  
Performance Test ◽  
Simulation Software ◽  
Normal Operation ◽  
Acceptance Test ◽  
Power System Simulation ◽  
Environment Simulation ◽  
And Performance ◽  
Security Test ◽  
Power Dispatching ◽  
Electrical Data

Nowadays, Power Dispatching System is not only facing disturbances caused by electrical data, but also facing disturbances caused by non-electrical data, such as working conditions and communication failures. Currently applied power system simulation software is either only facing monitoring personnel or only facing some application functions, without comprehensive consideration of the disturbance environment brought by the Power Dispatching System itself. This disturbance may reduce the reliability of Power Dispatching System, and even have a great impact on its reliable operation. This paper proposes a simulation system used as building disturbance environment for the test of Power Dispatching System. It proves that the established environment could effectively test a variety of functions of Power Dispatching System under the following situations, normal operation, disturbance, fault and avalanche. By applying this system, some functional and performance test that could not be done in Factory Acceptance Test (FAT) can be implemented, thus can be used to assist on Power Dispatching System’s security test.

scholarly journals Addressing inactivity after stroke: The Collaborative Rehabilitation in Acute Stroke (CREATE) study

2020 ◽  
pp. 174749302096936
Author(s):  
Fiona Jones ◽  
Karolina Gombert- ◽  
Stephanie Honey ◽  
Geoffrey Cloud ◽  
Ruth Harris ◽  
...  
Keyword(s):  
Large Scale ◽  
Self Report ◽  
Space Environment ◽  
Activity Levels ◽  
National Guidelines ◽  
Stroke Units ◽  
Case Comparison ◽  
And Performance ◽  
Survey Responses ◽  
Increased Activity

Background Stroke patients are often inactive outside of structured therapy sessions – an enduring international challenge despite large scale organizational changes, national guidelines and performance targets. We examined whether experienced-based co-design (EBCD) – an improvement methodology – could address inactivity in stroke units. Aims To evaluate the feasibility and impact of patients, carers, and staff co-designing and implementing improvements to increase supervised and independent therapeutic patient activity in stroke units and to compare use of full and accelerated EBCD cycles. Methods Mixed-methods case comparison in four stroke units in England. Results Interviews were held with 156 patients, staff, and carers in total; ethnographic observations for 364 hours, behavioral mapping of 68 patients, and self-report surveys from 179 patients, pre- and post-implementation of EBCD improvement cycles. Three priority areas emerged: (1) ‘Space’ (environment); (2) ‘Activity opportunities’ and (3) ‘Communication’. More than 40 improvements were co-designed and implemented to address these priorities across participating units. Post-implementation interview and ethnographic observational data confirmed use of new social spaces and increased activity opportunities. However, staff interactions remained largely task-driven with limited focus on enabling patient activity. Behavioral mapping indicated some increases in social, cognitive, and physical activity post-implementation, but was variable across sites. Survey responses rates were low at 12–38% and inconclusive. Conclusion It was feasible to implement EBCD in stroke units. This resulted in multiple improvements in stroke unit environments and increased activity opportunities but minimal change in recorded activity levels. There was no discernible difference in experience or outcome between full and accelerated EBCD; this methodology could be used across hospital stroke units to assist staff and other stakeholders to co-design and implement improvement plans.

Rancang Bangun Alat Olahan Minyak Kelapa

2016 ◽  
Vol 10 (1) ◽  
pp. 70-77
Author(s):  
Jantri Sirait ◽  
Sulharman Sulharman
Keyword(s):  
Electric Motor ◽  
Performance Test ◽  
Production Capacity ◽  
Coconut Oil ◽  
Heating Time ◽  
Design Tool ◽  
Coconut Milk ◽  
Heating Process ◽  
And Performance ◽  
Time Required

Has done design tool is a tool of refined coconut oil coconut grater, squeezer coconut milk and coconut oil heating, with the aim to streamline the time of making coconut oil and coconut oil increase production capacity. The research method consists of several stages, among others; image creation tool, procurement of materials research, cutting the material - the material framework of tools and performance test tools. The parameters observed during the performance test tools is time grated coconut, coconut milk bleeder capacity, the capacity of the boiler and the heating time of coconut oil. The design tool consists of three parts, namely a tool shaved coconut, coconut milk wringer and coconut milk heating devices. Materials used for the framework of such tools include iron UNP 6 meters long, 7.5 cm wide, 4 mm thick, while the motor uses an electric motor 0.25 HP 1430 rpm and to dampen the rotation electric motor rotation used gearbox with a ratio of round 1 : 60. the results of the design ie the time required for coconut menyerut average of 297 seconds, coconut milk wringer capacity of 5 kg of processes and using gauze pads to filter coconut pulp, as well as the heating process takes ± 2 hours with a capacity of 80 kg , The benefits of coconut oil refined tools are stripping time or split brief coconut average - average 7 seconds and coconut shell can be used as craft materials, processes extortion coconut milk quickly so the production capacity increased and the stirring process coconut oil mechanically.ABSTRAKTelah dilakukan rancang bangun alat olahan minyak kelapa yaitu alat pemarut kelapa, pemeras santan kelapa dan pemanas minyak kelapa, dengan tujuan untuk mengefisiensikan waktu pembuatan minyak kelapa serta meningkatkan kapasitas produksi minyak kelapa. Metode penelitian terdiri dari beberapa tahapan antara lain; pembuatan gambar alat, pengadaan bahan-bahan penelitian, pemotongan bahan - bahan rangka alat dan uji unjuk kerja alat. Parameter yang diamati pada saat uji unjuk kerja alat adalah waktu parut kelapa, kapasitas pemeras santan kelapa, kapasitas tungku pemanas serta waktu pemanasan minyak kelapa. Rancangan alat terdiri dari tiga bagian yaitu alat penyerut kelapa, alat pemeras santan kelapa dan alat pemanas santan kelapa. Bahan yang dipergunakan untuk rangka alat tersebut  yaitu besi UNP panjang 6 meter, lebar 7,5 cm, tebal 4 mm, sedangkan untuk motor penggerak menggunakan motor listrik 0,25 HP 1430 rpm dan untuk meredam putaran putaran motor listrik dipergunakan gearbox  dengan perbandingan putaran 1 : 60. Hasil dari rancangan tersebut yaitu waktu yang dibutuhkan untuk menyerut kelapa rata-rata 297 detik, kapasitas alat pemeras santan kelapa 5 kg sekali proses dan menggunakan kain kassa untuk menyaring ampas kelapa, serta Proses pemanasan membutuhkan waktu ± 2 jam dengan kapasitas 80 kg. Adapun keunggulan alat olahan minyak kelapa ini adalah waktu pengupasan atau belah kelapa singkat rata – rata 7 detik dan tempurung kelapa dapat digunakan sebagai bahan kerajinan, proses pemerasan santan kelapa cepat sehingga kapasitas produksi meningkat dan proses pengadukan minyak kelapa secara mekanis. Kata kunci : penyerut, pemeras, pemanas,minyak kelapa,olahan minyak kelapa.

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