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hard Winter Wheat and Flour Properties in Relation to Breadmaking Quality of straight-dough Bread:Flour Particle size and Bread Crumb Grain

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食品科学 2006年第11期27卷 164-170页

作者： s h park O K Chung P A seib UsDA-ARs Grain Marketing and Production Research Center Manhattan KS 66502 USA Department of Grain science and Industry Kansas State University Manhattan KS 66506 USA

samples of 12 hard winter wheats and their flours that produced breads varying in crumb grain scores were studied for 38 quality parameters including: wheat physical and chemical characteristics; flour ash and protein contents,starch damage,swelling power,pasting characteristics,and flour particle size distribution; dough properties determined by a mixograph; and breadmaking properties for pup loaves (100g flour). Only two parameters,the protein content of wheat and the granulation of flour,showed significant correlations with bread crumb grain scores. Protein content of wheat ranging 12.9%～14.5% determined by an NIR method showed a weak inverse relationship (r =-0.61,ph bread crumb grain score. Flour particle size distribution measured by both Alpine Air Jet sieve and NIR methods revealed that the weight wt % of particles less than 38μm in size and representing 9.6%～19.3% of the flour weights was correlated positively (r =0 .78,ph crumb grain score,whereas wt % of flour particles larger than 125μm had an inverse relationship (r =-0.60,ph crumb grain score.

关键词： hard Winter Wheat and Flour Properties in Relation to Breadmaking Quality of straight-dough Bread

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用粉末冶金方法制造压缩机法兰

粉末冶金技术 2012年第1期30卷 74-76页

作者： J.K.park h.s.park s.T.Choi 29-10 Bonri-ri Nongong-eup Dalsung-gun Daegn City韩国

为防止压缩机在运行中变形,用粉末冶金方法制造了带减压槽的压缩机法兰。将制造法兰的粉末材料装于模腔中,然后,将熔点比粉末材料低的熔渗件置于减压槽位置进行成形;将粉末材料与熔渗件压制成形为法兰;在粉末材料与熔渗件熔点之间的温... 详细信息

为防止压缩机在运行中变形,用粉末冶金方法制造了带减压槽的压缩机法兰。将制造法兰的粉末材料装于模腔中,然后,将熔点比粉末材料低的熔渗件置于减压槽位置进行成形;将粉末材料与熔渗件压制成形为法兰;在粉末材料与熔渗件熔点之间的温度下进行烧结,使熔渗件熔化和渗入粉末材料之中。用新方法制造的法兰比用常规方法生产的强度高、密封性好。根据分析,在烧结时,由于熔渗件熔化与渗透到法兰结构中,改进了气密性,增高了强度。

关键词：烧结压缩机耐磨性密封性能

Design of Mg-Zn-si-Ca casting magnesium alloy with high thermal conductivity

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Journal of Magnesium and Alloys 2020年第1期8卷 184-191页

作者： V.E.Bazhenov A.V.Koltygin M.C.sung s.h.park A.Yu.Titov V.A.Bautin s.V.Matveev M.V.Belov V.D.Belov K.V.Malyutin National University of science and Technology“MIsis” Leninskiy pr.4Moscow 119049Russia LG Electronics Inc. Yeoui-daeroYeongdeungpo-gu.128LG Twin TowerSeoul 07336 Republic of Korea

Magnesium alloys are commonly used to produce lightweight *** most magnesium alloys exhibit low thermal conductivities,high thermal conductivities are needed for electronic *** this study,we attempted to develop new magnesium casting alloys with high thermal *** Mg-Zn-si-Ca alloy compositions were chosen using CALPhAD(CALculation of PhAse Diagrams)calculations,and alloy samples were *** fluidity and hot-tearing resistance were *** results indicated that these properties were similar to those of AZ91 *** tests showed that high-pressure die casting could produce Mg-Zn-si-Ca alloys possessing mechanical properties 1.5-3 times higher than those produced via sand *** alloy thermal conductivity was 126 W/mK at room *** corrosion rates of the as-cast samples in NaCl/water solutions were two times higher than that of AZ91.

关键词： Magnesium alloy Thermal conductivity Phase composition Corrosion rate sand casting high-pressure die casting

Development of Mg-Zn-Y-Zr casting magnesium alloy with high thermal conductivity

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Journal of Magnesium and Alloys 2021年第5期9卷 1583-1593页

作者： V.E.Bazhenov A.V.Koltygin M.C.sung s.h.park Yu.V.Tselovalnik A.A.stepashkin A.A.Rizhsky M.V.Belov V.D.Belov K.V.Malyutin National University of science and Technology“MIsis” Leninskiy pr.4Moscow 119049 Russia LG Electronics Inc. Yeoui-daeroYeongdeungpo-gu.128LG Twin TowerSeoul 07336 Republic of Korea

Magnesium alloys are used in aircraft because of their light ***,for these alloys to be applied in electronic devices,high thermal conductivities are *** high-potential compositions of Mg-Zn-Y-Zr alloys were selected by phase composition and their freezing ranges calculated using Thermo-Calc *** alloys were prepared,and their fluidity,hot tearing susceptibility,mechanical properties,and thermal conductivity were obtained and *** alloy composed of Mg-4 wt%Zn-3 wt%Y-0.3 wt%Zr was selected for further investigation,because of its high thermal conductivity and satisfactory mechanical *** Mg-4 wt%Zn-3 wt%Y-0.3 wt%Zr alloy’s fluidity and hot tearing susceptibility were similar to those of the widespread AZ91 commercial casting magnesium *** influence of a heat treatment regime on the microstructure,thermal conductivity,and mechanical properties of the developed alloy was also *** was established that the room temperature thermal conductivity of the Mg-4 wt%Zn-3 wt%Y-0.3 wt%Zr alloy after aging at 300℃for 5 h was 105 W/m K^(-1).Additionally,the following tensile test results were obtained in aged condition:120 MPa yield strength,200 MPa ultimate tensile strength,and 4%*** utilization of solid solution heat treatment at 520℃for 8 h prior to aging can promote up to 9%increase in *** Mg-4 wt%Zn-3 wt%Y-0.3 wt%Zr casting alloy can be used as a high thermal conductivity material with industrial applications.

关键词： Magnesium alloy Mg-Zn-Y-Zr Thermal conductivity Phase composition Fluidity hot tearing susceptibility

钆塞酸二钠增强MRI评估单发肝细胞癌病人的术后转归：风险评分系统的建立和验证

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国际医学放射学杂志 2023年第4期 490-491页

作者： s.h.park B.Kim s.Kim s.park Y.h.park s.K.shin 周朝阳

摘要目的建立并验证基于钆塞酸二钠增强的肝脏MRI特征和临床因素的风险评分系统，预测单发肝细胞癌（hCC）无复发生存期（RFs）。方法回顾性纳入2个中心接受

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钆塞酸增强MRI预测肝细胞癌微血管浸润的观察者间变异性和诊断性能

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国际医学放射学杂志 2021年第1期44卷 110-111页

作者： J.h.Min M.W.Lee h.s.park D.h.Lee h.J.park s.Lim 王静

摘要准确识别肝细胞癌(hCC)治疗前微血管浸润(MVI)是选择正确治疗方案的关键。目的根据放射科医师的经验水平,评估hCC MVI的观察者间一致性和诊断性能。

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基于对比增强CT检查及深度学习检测胰腺实性和囊性肿瘤

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国际医学放射学杂志 2023年第2期 228-229页

作者： h.J.park K.shin M.You s.Kyung s.Y.Kim s.h.park 惠情情

摘要深度学习（DL）可以提高在影像中各种胰腺病变的诊断。目的开发和验证一种基于DL的方法以用于在腹部CT上自动识别患有各种实体和囊性胰腺肿瘤的病人，并将

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在MR普美显增强下原发性肝癌的LI-RADs分型和预后

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国际医学放射学杂志 2019年第2期42卷 237-238页

作者： s.h.Choi s.s.Lee s.h.park K.M.Kim E.Yu Y.park 罗浩然(译) 杜明珊(校) Department of Radiology and Research Institute of Radiology University of Ulsan College of MedicineAsan Medical Center88 Olympic-ro 43-gilSongpa-guSeoul 05505South Korea 不详

目的(a)评价各型肝脏影像报告和数据系统(LIRADs)原发性肝癌术后的预后意义;(b)确定2017版LIRADs在MR普美显增强中区分肝细胞肝癌(hCC)、肝内胆管细胞癌(IhCC)和肝细胞-胆管细胞混合型肝癌(chCCCC)方面的作用。

关键词：原发性 LI-RADs MR

An Assessment of Eco Driving system for Agricultural Tractor

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Journal of Agricultural science and Technology(B) 2011年第6期1卷 906-912页

作者： s. h. park Y. J. Kim D. h. Im C. K. Kim National Academy of Agricultural science Rural Development Administration Suwon 441857 Republic of Korea

In this study, tractor power output, fuel consumption rate and work performance were indirectly predicted in order to develop an eco driving system. Firstly, equations were developed which could foretell tractor power output and fuel consumption rate using characteristic curves of tractor power output. secondly, with actual engine revolution per minute （rpm） determined by initial engine rpm and work load, tractor power output and fuel consumption rate were forecasted. Thirdly, it was possible to foresee tractor work performance and fuel consumption rate by the speed signals of Global Positioning system （GPs）. Lastly, precision of the eco driving system was evaluated through tractor Power Take-Off （PTO） test, and effects of the eco driving system were investigated in the plowing and rotary tilling operations. Engine rpm, power output, fuel consumption rate, work performance and fuel consumption rate per plot area were displayed on the eco driving system. Predicted tractor power outputs in the full load curve were well coincided with the actual power output of prototype, but small differences, 1 to 6 kW were found in the part load curve. Error of the fuel consumption rate was 0.5 to 3 L/h at the part load curve. It was shown that 69% and 53% of fuel consumption rates could be reduced in plowing and rotary tilling operations, respectively, when the eco driving system was installed in tractor.

关键词： Tractor fuel consumption rate Power Take-Off (PTO).