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Neutron distribution and yield produced by 50 MeV/u^(18)O-ion on thick targets

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Nuclear Science and Techniques 1999年第3期10卷 137-142页

作者： LI Guisheng ZHANG Tianmei LI Zongwei su youwu ZHANG Shumin (Institute of Modern Physics, the Chinese Academy of Sciences, Lanzhou 730000) Institute of Modern Physics Chinese Academy of sciences Lanzhou 730000 China

Neutron energy, fluence rate, angular distributions and dose equivalent rate distributions around the thick Be, Cu, An targets bombarded by 50 MeV/u 18O-ion were measured using a threshold detector activation method. At the same time,the neutron yields of 18O-ion and the neutron emission rates in the forward direction were obtained approximately.

关键词： 18O离子中子分布剂量等价速率

Flux-dose Conversion Factor of Neutron

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IMP & HIRFL Annual Report 1995年 205-206页

作者： su youwu

Ｆｌｕｘ－ｄｏｓｅ　Ｃｏｎｖｅｒｓｉｏｎ　Ｆａｃｔｏｒ　ｏｆ　ＮｅｕｔｒｏｎＦｌｕｘ－ｄｏｓｅＣｏｎｖｅｒｓｉｏｎＦａｃｔｏｒｏｆＮｅｕｔｒｏｎ￥ＳｕＹｏｕｗｕＴｈｅ＂ｄｏｓｅｅｑｕｉｖａｌｅｎｔ＂ｕｓｅｄｐｒｅｖｉ... 详细信息

Ｆｌｕｘ－ｄｏｓｅ　Ｃｏｎｖｅｒｓｉｏｎ　Ｆａｃｔｏｒ　ｏｆ　ＮｅｕｔｒｏｎＦｌｕｘ－ｄｏｓｅＣｏｎｖｅｒｓｉｏｎＦａｃｔｏｒｏｆＮｅｕｔｒｏｎ￥ＳｕＹｏｕｗｕＴｈｅ＂ｄｏｓｅｅｑｕｉｖａｌｅｎｔ＂ｕｓｅｄｐｒｅｖｉｏｕｓｌｙｗａｓｃｈａｎｇｅｄｔｏ...

关键词： Conversion

Development of Dose Monitor System in Site at SFC

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IMP & HIRFL Annual Report 1994年 99-100页

作者： Chen Xuebin and su youwu

ＤｅｖｅｌｏｐｍｅｎｔｏｆＤｏｓｅＭｏｎｉｔｏｒＳｙｓｔｅｍｉｎＳｉｔｅａｔＳＦＣ￥ＣｈｅｎＸｕｅｂｉｎａｎｄＳｕＹｏｕｗｕＡｒａｄｉａｔｉｏｎｄｏｓｅｍｏｎｉｔｏｒｓｙｓｔｅｍｉｎｓｉｔｅａｔＳＦＣｈａｓｂｅｅｎｄ...

ＤｅｖｅｌｏｐｍｅｎｔｏｆＤｏｓｅＭｏｎｉｔｏｒＳｙｓｔｅｍｉｎＳｉｔｅａｔＳＦＣ￥ＣｈｅｎＸｕｅｂｉｎａｎｄＳｕＹｏｕｗｕＡｒａｄｉａｔｉｏｎｄｏｓｅｍｏｎｉｔｏｒｓｙｓｔｅｍｉｎｓｉｔｅａｔＳＦＣｈａｓｂｅｅｎｄｅｖｅｌｏｐｅｄ．Ｔｈｅｇｒａｐｈ...

关键词：

Application　of　Moyer　Model　for　Shielding　Design　of　High　Energy　Heavy　Ion　Accelerators

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IMP & HIRFL Annual Report 1995年 93-94页

作者： Zhu Lianfang su youwu and Chen Xuebing

Ａｐｐｌｉｃａｔｉｏｎ　ｏｆ　Ｍｏｙｅｒ　Ｍｏｄｅｌ　ｆｏｒ　Ｓｈｉｅｌｄｉｎｇ　Ｄｅｓｉｇｎ　ｏｆ　Ｈｉｇｈ　Ｅｎｅｒｇｙ　Ｈｅａｖｙ　Ｉｏｎ　ＡｃｃｅｌｅｒａｔｏｒｓＡｐｐｌｉｃａｔｉｏｎｏｆＭｏｙｅｒＭｏｄｅｌ... 详细信息

Ａｐｐｌｉｃａｔｉｏｎ　ｏｆ　Ｍｏｙｅｒ　Ｍｏｄｅｌ　ｆｏｒ　Ｓｈｉｅｌｄｉｎｇ　Ｄｅｓｉｇｎ　ｏｆ　Ｈｉｇｈ　Ｅｎｅｒｇｙ　Ｈｅａｖｙ　Ｉｏｎ　ＡｃｃｅｌｅｒａｔｏｒｓＡｐｐｌｉｃａｔｉｏｎｏｆＭｏｙｅｒＭｏｄｅｌｆｏｒＳｈｉｅｌｄｉｎｇＤｅｓｉｇ...

关键词： Application Model

Ultra-high-Q free-space coupling to microtoroid resonators

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Light(Science & Applications) 2024年第4期13卷 682-695页

作者： Sartanee suebka Euan McLeod Judith su Wyant College of Optical Sciences University of ArizonaTucsonAZUSA Department of Biomedical Engineering University of ArizonaTucsonAZUSA

Whispering gallery mode(WGM)microtoroid resonators are one of the most sensitive biochemical sensors in existence,capable of detecting single molecules.The main barrier for translating these devices out of the laboratory is that light is evanescently coupled into these devices though a tapered optical fiber.This hinders translation of these devices as the taper is fragile,suffers from mechanical vibration,and requires precise positioning.Here,we eliminate the need for an optical fiber by coupling light into and out from a toroid via free-space coupling and monitoring the scattered resonant light.A single long working distance objective lens combined with a digital micromirror device(DMD)was used for light injection,scattered light collection,and imaging.We obtain Q-factors as high as 1:6´108 with this approach.Electromagnetically induced transparency(EIT)-like and Fano resonances were observed in a single cavity due to indirect coupling in free space.This enables improved sensing sensitivity.The large effective coupling area(~10μm in diameter for numerical aperture=0.14)removes the need for precise positioning.Sensing performance was verified by combining the system with the frequency locked whispering evanescent resonator(FLOWER)approach to perform temperature sensing experiments.A thermal nonlinear optical effect was examined by tracking the resonance through FLOWER while adjusting the input power.We believe that this work will be a foundation for expanding the implementation of WGM microtoroid resonators to real-world applications.

关键词： coupling scattered precise

Recurrent malignant hyperthermia after scoliosis correction surgery

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World Journal of Emergency Medicine 2024年第1期15卷 70-72页

作者： Junfeng su Man Huang Department of General Intensive Care Unit the Second Affi liated Hospital of Zhejiang University School of MedicineHangzhou 310052China Key Laboratory of Early Warning and Intervention of Multiple Organ Failure Ministry of Education of the People's Republic of ChinaHangzhou 310052China

Malignant hyperthermia(MH)is a genetic disorder of skeletal muscle cells that affects muscle cytoplasmic calcium homeostasis,with high mortality and low morbidity.Generally,it presents with non-specific signs of a hypermetabolic response,including high fever,tachycardia,and elevated end-tidal carbon dioxide(ETCO_(2)).The successful treatment lies in the timely recognition and early use of dantrolene.[1]As an inhibitor of Ca2+release through ryanodine receptor(RYR)channels,the skeletal muscle relaxant dantrolene has proven to be both a valuable experimental probe of intracellular Ca2+signaling and a lifesaving treatment for MH.[2]Dominant mutations in the skeletal muscle RYR1 gene are well-recognized causes of both malignant hyperthermia susceptibility(MHS)and central core disease(CCD).

关键词： hyperthermia malignant elevated

Mass-produced and uniformly luminescent photochromic fibers toward future interactive wearable displays

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Light(Science & Applications) 2024年第4期13卷 593-595页

作者： Yan Li Yikai su Department of Electronic Engineering Shanghai Jiao Tong University200240 ShanghaiChina

Enabling flexible fibers with light-emitting capabilities has the potential to revolutionize the design of smart wearable interactive devices.A recent publication in Light Science&Application,an interdisciplinary team of scientists led by Prof.Yan-Qing Lu and Prof.Guangming Tao has realized a highly flexible,uniformly luminescent photochromic fiber based on a mass-produced thermal drawing method.It overcomes the shortcomings of existing commercial lightdiffusing fibers,exhibiting outstanding one-dimensional linear illumination performance.The research team integrated controllable photochromic fibers into various wearable interaction interfaces,providing a novel approach and insights to enable human-computer interaction.

关键词： interaction. fibers uniformly

Shock Formation for 2D Isentropic Euler Equations with Self-similar Variables

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Chinese Annals of Mathematics,Series B 2024年第3期45卷 349-412页

作者： Wenze su School of Mathematical Sciences Fudan UniversityShanghai 200433China

The author studies the 2D isentropic Euler equations with the ideal gas law.He exhibits a set of smooth initial data that give rise to shock formation at a single point near the planar symmetry.These solutions to the 2D isentropic Euler equations are associated with non-zero vorticity at the shock and have uniform-in-time-1/3-Holder bound.Moreover,these point shocks are of self-similar type and share the same profile,which is a solution to the 2D self-similar Burgers equation.The proof of the solutions,following the 3D construction of Buckmaster,Shkoller and Vicol(in 2023),is based on the stable 2D self-similar Burgers profile and the modulation method.

关键词： 2D isentropic Euler equations Shock formation Self-similar solution

Design and pricing of maintenance service contract based on Nash non-cooperative game approach

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Journal of Systems Engineering and Electronics 2024年第1期35卷 118-129页

作者： su Chun HUANG Kui School of Mechanical Engineering Southeast UniversityNanjing 211189China

Nowadays manufacturers are facing fierce challenge.Apart from the products,providing customers with multiple maintenance options in the service contract becomes more popular,since it can help to improve customer satisfaction,and ultimately promote sales and maximize profit for the manufacturer.By considering the combinations of corrective maintenance and preventive maintenance,totally three types of maintenance service contracts are designed.Moreover,attractive incentive and penalty mechanisms are adopted in the contracts.On this basis,Nash non-cooperative game is applied to analyze the revenue for both the manufacturer and customers,and so as to optimize the pricing mechanism of maintenance service contract and achieve a win-win situation.Numerical experiments are conducted.The results show that by taking into account the incentive and penalty mechanisms,the revenue can be improved for both the customers and manufacturer.Moreover,with the increase of repair rate and improvement factor in the preventive maintenance,the revenue will increase gradually for both the parties.

关键词： maintenance service contract Nash game incentive and penalty mechanism corrective maintenance preventive maintenance