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Multi-functional photonic spin Hall effect sensor controlled by phase transition

Chinese Physics B 2024年第7期33卷 336-342页

作者：程杰李瑞昭程骋张亚林刘胜利董鹏 School of Science Jiangsu Province Engineering Research Center of Low Dimensional Physics and New EnergyNanjing University of Posts and TelecommunicationsNanjing 210023China College of Electronic and Optical Engineering Nanjing University of Posts and TelecommunicationsNanjing 210023China School of Electrical Engineering Research Center of Intelligent Sensor and Network Engineering Technology of Jiangsu ProvinceNanjing Vocational University of Industry TechnologyNanjing 210023China

Photonic spin Hall effect(PSHE), as a novel physical effect in light–matter interaction, provides an effective metrological method for characterizing the tiny variation in refractive index(RI). In this work, we propose a multi-functional PSHE sensor based on VO_(2), a material that can reveal the phase transition behavior. By applying thermal control, the mutual transformation into different phase states of VO_(2) can be realized, which contributes to the flexible switching between multiple RI sensing tasks. When VO_(2) is insulating, the ultrasensitive detection of glucose concentrations in human blood is achieved. When VO_(2) is in a mixed phase, the structure can be designed to distinguish between the normal cells and cancer cells through no-label and real-time monitoring. When VO_(2) is metallic, the proposed PSHE sensor can act as an RI indicator for gas analytes. Compared with other multi-functional sensing devices with the complex structures, our design consists of only one analyte and two VO_(2) layers, which is very simple and elegant. Therefore, the proposed VO_(2)-based PSHE sensor has outstanding advantages such as small size, high sensitivity, no-label, and real-time detection, providing a new approach for investigating tunable multi-functional sensors.

关键词： photonic spin Hall effect multi-functional sensors phase transition sensing performance

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THE TRANSIENT AERODYNAMIC CHARACTERISTICS AROUND VANS RUNNING INTO A ROAD TUNNEL

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Journal of Hydrodynamics 2010年第2期22卷 283-288页

作者： li li DU Guang-sheng liu Zheng-gang LEI li School of Energy and Power Engineering Shandong University Jinan 250061 China

In this article,the processes of vans running into a one-way two-lane road tunnel are simulated numerically using the dynamic mesh technique and RNG k ？ ε turbulence *** transient aerodynamic characteristics around vans are obtained in three cases：a single van,two vans side-by-side and two vans one after another running into the tunnel,*** a comparison with the results of the wind tunnel experiment,the transient simulation method is *** results show that,when a van runs into the tunnel,the aerodynamic drag coefficient increases near the tunnel entrance,and after entering the tunnel,the side force is generated,pointing to the tunnel wall nearer to the *** two vans run into the tunnel side-by-side,their drag coefficients increase by 50%,and the side force varies sharply with directions changing twice near the tunnel *** two vans run into tunnel one after another,the aerodynamic characteristics around the van in the front is similar to that of a single van,but the aerodynamic forces on the van behind do not have obvious *** the three cases,the aerodynamic forces have a sharp change when two vans run side-by-side,so driving side-by-side into a tunnel should be avoided for safety.

关键词： dynamic mesh technique transient aerodynamic characteristic road tunnel

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New Method for Evaluating Thermal Wear of Rolls in Rolling Process

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Journal of Iron and Steel Research International 2008年第6期15卷 52-55页

作者： li Chang-sheng liu Xiang-hua WANG Guo-dong State Key Laboratory of Rolling and Automation Northeastern University Shenyang 110004 Liaoning China

A new method was developed by a thermal wear machine to evaluate the thermal wear of roils in steel rolling process. The steel strip and rolls were simulated by upper and lower heating disks. The upper heating disk could he kept at a temperature of over 900 ℃ by induction heating. The pressure between the disks as high as 323.2 MPa could be achieved and the slipping rate could be 12. 7 %. The thermal wear of high speed steel （HSS） roll material, the wear rate of the HSS roll, and the SEM morphology of a worn HSS roll surface were investigated. This method was useful and could be employed to simulate friction and wear between strip and roll during the strip rolling process.

关键词： thermal wear roll friction strip rolling induction heating

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从"有故无殒"治则探讨"以毒攻毒法"治疗恶性肿瘤

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中医肿瘤学杂志 2024年第5期6卷 29-34页

作者：徐勤吴娇李刘生连花吴煜北京中医药大学研究生院北京 100029 中国中医科学院西苑医院北京 100091

"有故无殒,亦无殒也"出自《黄帝内经》,原是妊娠疾病的一项重要治疗原则,后通过历代医家的归纳推理,现已广泛用于临床治疗其他类疾病,尤其是恶性肿瘤,由此引申的"以毒攻毒法"对于中医药治疗恶性肿瘤更是具有建设性指导意义.本文通过分析... 详细信息

"有故无殒,亦无殒也"出自《黄帝内经》,原是妊娠疾病的一项重要治疗原则,后通过历代医家的归纳推理,现已广泛用于临床治疗其他类疾病,尤其是恶性肿瘤,由此引申的"以毒攻毒法"对于中医药治疗恶性肿瘤更是具有建设性指导意义.本文通过分析"有故无殒"治则的思想内涵与延伸应用、针对恶性肿瘤发生发展过程中癌毒这一特异性致病因素,探讨中医"以毒攻毒法"治疗恶性肿瘤的理论依据和方式方法,并举隅古今医家运用"以毒攻毒法"治疗恶性肿瘤的经验,以期为恶性肿瘤的中医药治疗提供理论依据和临床参考.

关键词：有故无殒以毒攻毒恶性肿瘤

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Low Temperature Reduction Degradation Characteristics of Sinter,Pellet and Lump Ore

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Journal of Iron and Steel Research International 2011年第8期18卷 20-24页

作者： WU sheng-li liu Xiao-qin ZHOU Qi XU Jian liu Cheng-song School of Metallurgical and Ecological Engineering University of Science and Technology Beijing Beijing 100083 China

The reduction degradation characteristics of typical sinter, pellet and lump ore were tested with the reducing gas conditions simulating two kinds of irowmaking processes. The results show that, in the same condition of gas composition and temperature, the reduction degradation degree （RDI〈3.15mm） of sinter is high, RDI〈3.15mm of lump ore is low and RDI〈3.15 mm of pellet is in the middle level. With two kinds of gas composition simulating different iron-making processes, the reduction degradation indices （RDI） of three kinds of iron ores all present the tenden- cy of ＂inverted V-shape＂ in the temperature range from 450 to 650℃, and the RDI reach the maximum value at 550℃. The reduction degradation degrees of iron ores are extended when mixing the gas with hydrogen to increase the re duction potential, and the influence extent is discrepant for different iron ores. Colligating the increase amplitude of grains in small size fraction, the influence of reducing gas on lump ore is the greatest, the influence on sinter is the second, and the sensitivity of pellet on the reducing gas properties change is relatively small. As for the degradation form, lump ore and sinter both present the degradation ,of cracking, and the distribution of small grains generated from the cracking is in the range from 03 5 to 6. 3 mm uniformly. The lump ore presents surface cracking, while sin- ter presents integral cracking. The pellet presents the degradation of surface stripping, and the proportion of grains smaller than 0.5 mm is the highest, which is up to 90% in the grains smaller than 3.15 mm.

关键词： sinter pellet lump ore low temperature reduction degradation characteristic gas property

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Certificateless key-insulated signature without random oracles

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2009年第12期10卷 1790-1800页

作者： Zhong-mei WAN Xue-jia LAI Jian WENG sheng-li liu Yu LONG Xuan HONG Department of Computer Science and Engineering Shanghai Jiao Tong University Shanghai 200240 China College of Science Hohai University Nanjing 210098 China Department of Computer Science Jinan University Guangzhou 510630 China School of lnformation Systems Singapore Management University Singapore 178902 Singapore

Leakage of the private key has become a serious problem of menacing the cryptosystem security. To reduce the underlying danger induced by private key leakage, Dodis et al.(2003) proposed the first key-insulated signature scheme. To handle issues concerning the private key leakage in certificateless signature schemes, we devise the first certificateless key-insulated signature scheme. Our scheme applies the key-insulated mechanism to certificateless cryptography, one with neither certificate nor key escrow. We incorporate Waters (2005)’s signature scheme, Paterson and Schuldt (2006)’s identity-based signature scheme, and liu et al.(2007)’s certificateless signature scheme to obtain a certificateless key-insulated signature scheme. Our scheme has two desirable properties. First, its security can be proved under the non-pairing-based generalized bilinear Diffie-Hellman (NGBDH) conjecture, without utilizing the random oracle model; second, it solves the key escrow problem in identity-based key-insulated signatures.

关键词： Key-insulated Key leakage Certificateless Bilinear map

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Shape Setup System for 1700 Hot Strip Mill

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Journal of Iron and Steel Research International 2007年第5期14卷 27-30页

作者： GUO Zhong-feng XU Jian-zhong li Chang-sheng liu Xiang-hua State Key Laboratory of Rolling and Automation Northeastern University Shenyang 110004 Liaoning China

Shape setup （SSU） system is the core technology for hot strip mill （HSM）. A precise SSU system was used to improve the strip quality for HSM. The function of SSU, setup, and feedback was introduced. The main mathematical models of roll gap profile and longitudinal strain difference are set up. Strip profile allocation strategy was researched according to the SSU system of a domestic 1 700 mm HSM. The SSU system was put into practical use and the measurement results showed that strip flatness variation and strip profile variation could be controlled in target scope.

关键词： SSU hot strip mill, shape strip profile flatness

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Pseudohyperkalemia with Myelofibrosis after Splenectomy

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Chinese Medical Sciences Journal 2016年第4期31卷 258-260页

作者： sheng-li liu Lu-wei Zhang Jun Tian Center of Kidney Transplantation and Hemodialysis Qilu Hospital of Shandong University

SEUDOHYPERKALEMIA refers the serum potassiumlevel is higher than plasma potassium due tovarious reasons in vitro monitoring, but actualpotassium level in vivo is at the normal range. Aseries of inappropriate clinical interventions due to initialfailure to recognize it may actually decrease potassiumlevel，which could cause life-threatening condition. Here wereport a patient with myelofibrosis who occurred spurioushyperkalemia after splenectomy, aiming at emphasizingthe importance of recognizing pseudodyperkalemia.

关键词： pseudohyperkalemia serum potassium plasma potassium myelofibrosis splenectomy

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Systematic review and meta-analysis on phosphodiesterase 5 inhibitors and α-adrenoceptor antagonists used alone or combined for treatment of LUTS due to BPH

引用

Asian Journal of Andrology 2015年第6期17卷 1022-1032,I0012页

作者： Xing-Huan Wang Xiao Wang Ming-Jun Shi sheng li Tao liu Xin-Hua Zhang Department of Urology Zhongnan Hospital of Wuhan University Wuhan 430071 China.

The aim of this systematic review is to determine the comparative effectiveness and safety of phosphodiesterase 5 inhibitors （PDE5-1s） and （x-blockers used alone or combined for the treatment of lower urinary tract symptoms （LUTS） due to benign prostatic hyperplasia （BPH）. An electronic search of PubMed, Cochrane library and Embase up to January 2014 was performed to identify randomized controlled trials comparing the efficacy and safety of PDE5-Is and （x-blockers for treatment of lower urinary tract symptoms due to benign prostatic hyperplasia, which assessed IPSS score, maximum flow rate, postvoided residual urine, quality of life and Erectile Function （IIEF） score as outcomes. Data were analyzed by fixed or random effect models using Cochrane Collaboration review manager software. A total of 12 studies were included, Our novel data demonstrated that there was a trend that （x-blockers were more efficacious than PDE5-Is on decreasing IPSS score and increasing maximum flow rate. （x-blockers were significantly more effective than PDE5-Is on reduction of postvoided residual urine with a mean difference of 3.67 （95% CI 1.56 to 5.77, P = 0.0006） and PDE5-Is showed greater effect than （x-blockers on increasing IIEF score with a mean difference of 9.82 （95% CI 3.80 to 15.85, P = 0.001）. In conclusion, our novel data demonstrated that PDE5-Is plus ABs ranked the highest on the improvement of LUTS/BPH. PDE5-Is monotherapy was also effective in this kind of disorder except less reduction of PVR than ABs, In addition, both combined- or mono-therapy were safe.

关键词： benign prostatic hyperplasia lower urinary tract symptoms meta-analysis phosphodiesterase 5 inhibitors -adrenoceptorantagonists

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Improvements on Calculation Model of Theoretical Combustion Temperature in a Blast Furnace

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Journal of Iron and Steel Research International 2011年第12期18卷 1-5页

作者： WU sheng-li liu Cheng-song FU Chang-liang XU Jian KOU Ming-yin School of Metallurgical and Ecological Engineering University of Science and Technology Beijing Beijing 100083 China

On the basis of the existing originally modified calculation models of theoretical combustion temperature（TCT）,some factors,such as the combustion ratio of pulverized coal injection（PCI）,the decomposition heat of PCI and the heat consumption of SiO2 in ash reduced in high temperature environment,were amended and improved to put forward a more comprehensive model for calculating *** influences of each improvement on TCT were studied and the results were analyzed compared with those of traditional model and originally modified model,which showed that the present model could reflect the thermal state of a hearth more effectively.

关键词： blast furnace theoretical combustion temperature improved calculation model

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