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Chinese Medical Journal 2006年第13期119卷 1072-1078页

作者： YANG Zhen WU Song-hua zheng Tai-shan lu Hui-juan XIANG Kun-san Shanghai Diabetes Institute Department of Endocrinology and Metabolism Shanghai No. 6 People＇s Hospital Shanghai Jiaotong University Shanghai 200233 China

Background Mutations in the hepatocyte nuclear factor-lA gene cause the type 3 form of maturity-onset diabetes of the young （MODY3）. This study was undertaken to determine mutations and sequence variations of the HN... 详细信息

关键词： maturity-onset diabetes of the young hepatocyte nuclear factor-1A gene direct sequencing

Rapid growth of a large-scale(600 mm aperture) KDP crystal and its optical quality

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High Power Laser Science and Engineering 2014年第1期2卷 40-44页

作者： Guohui Li Guozong zheng Yingkun Qi Peixiu Yin En Tang Fei Li Jing Xu Taiming Lei Xiuqin Lin Min Zhang Junye lu Jinbo Ma Youping He Yuangen Yao Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences

Potassium dihydrogen phosphate(KDP) single crystals are the only nonlinear crystals currently used for electro-optic switches and frequency converters in inertial confinement fusion research, due to their large dimension and exclusive physical properties. Based on the traditional solution-growth process, large bulk KDP crystals, usually with sizes up to600 × 600 mm2 so as to make a frequency doubler for the facility requirement loading highly flux of power laser, can be grown in standard Holden-type crystallizers, without spontaneous nucleation and visible defects, one to two orders of magnitude faster than by conventional methods. Pure water and KDP raw material with a few ion impurities such as Fe,Cr, and Al(less than 0.1 ppm) were used. The rapid-growth method includes extreme conditions such as temperature range from 60 to 35℃ , overcooling up to 5℃ , growth rates exceeding 10 mm/day, and crystal size up to 600 mm. The optical parameters of KDP crystals were determined. The optical properties of crystals determined indicate that they are of favorable quality for application in the facility.

关键词： large-scale KDP crystals rapid growth optical quality

Photoluminescence Properties of Nanocrystalline 3C-SiC Films

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Chinese Journal of Aeronautics 2006年第B12期19卷 215-219页

作者： YUWei lu Xue-qin lu Wan-bing HAN Li FU Guang-sheng College of Physics Science and Technology Hebei University Baoding 071002 China

Nanocrystalline （nc） 3C-SiC films on the Si substrate were prepared by the helicon wave plasma enhanced chemical vapor deposition （HW-PECVD） technique. With the SiH4-CH4 gas flow ratio changing, the films exhibit different photoluminescence （PL） characteristics. Under the stoichiometric condition, the PL peak redshift from 470 nm to 515 nm is detected with the increase of excitation wavelength, which can be attributed to the quantum confinement effect radiation of 3C-SiC nanocrystals of different sizes. However, the appearance of an additional PL band at 436 nm in Si-rich film might be sourced back to the excess of Si defect centers in it. This is also the case for C-rich film for its PL band lying at 570 nm. The results above quoted indicate an important influence of gas flow ratio on the PL properties of the SiC films providing an effective guidance for analyzing the luminescence mechanism and exploring the high-efficiency light emission of the SiC films.

关键词： SiC film photoluminescence quantum confinement effect defect

Coping with the Bullwhip Effect Using Inventory or Cash: An Environment-Behavior-Performance Paradigm

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Journal of Systems Science and Systems Engineering 2021年第2期30卷 215-235页

作者： Baile lu Qihui Gong Baofeng Huo Weihua Zhou School of Management Zhejiang UniversityHangzhou 310058China

The bullwhip effect is w idely found in business and exerts adverse effects on business *** investigate the influence of the bullwhip effect on firm s'performance and their responses,this study proposed an environment-behavior-performance analysis fram ework and offered a new perspective for studying the bullwhip *** data collected from 1,734 listed manufacturers in China from 2002 to 2017,we adopted regression models to test the proposed m odel and conducted a series of robustness *** find that the bullwhip effect is positively related to operating risk,inventory,and cash holdings,and the moderate levels of inventory and cash are negatively associated with operating ***,inventory and cash play different roles and work together to alleviate operating risk induced by the bullwhip ***,excess resource holdings are positively associated with operating ***,firm swith different levels of resources should hold suitable levels of inventory,cash,or both as contingent responses to the bullwhip effect.

关键词： Bullwhip effect inventory holding cash holding operating risk

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污染土壤生物修复技术的进展与工程应用现状

化工进展 2023年第12期42卷 6498-6506页

作者：房晓宇卢滇楠刘铮清华大学化学工程系北京100084

人类生产和生活中对于污染物的不当处理会导致土壤污染,威胁生态安全、粮食安全和可持续发展。土壤生物修复利用微生物来降解土壤中的有机污染物、转化重金属污染物价态或者降低其生物可利用度而降低其危害。伴随现代生物技术的发展,土... 详细信息

人类生产和生活中对于污染物的不当处理会导致土壤污染,威胁生态安全、粮食安全和可持续发展。土壤生物修复利用微生物来降解土壤中的有机污染物、转化重金属污染物价态或者降低其生物可利用度而降低其危害。伴随现代生物技术的发展,土壤生物修复技术被日益广泛地应用于污染耕地和污染工业场地的修复。本文从污染物质的转化与利用角度,概述了土壤污染物的主要类型及其所适用的生物修复技术及其进展。重点综述了生物修复菌株的筛选、土壤微生态分析、生物修复过程强化三方面的最新进展,介绍了生物修复技术在加油站、废弃化工厂的生物修复及秸秆还田中的工程实施案例,分析了土壤生物修复技术应用中存在的问题,如土壤修复效果评估和降解菌剂性能强化等,讨论了土壤生物修复技术的研究方向和应用前景。

关键词：污染土壤土壤生物修复废弃秸秆

Effect of acidity on morphologies and photodimerization kinetics in Langmuir-Blodgett monolayers of styrylquinoline derivatives

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Chinese Chemical Letters 2017年第6期28卷 1285-1289页

作者： Yingxue Ma lu Lin Li Zhang Minghua Liu Yuan Guo Zhou lu Beijing National Laboratory for Molecular Sciences CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry ChineseAcademy of Sciences Beijing 100190 China University of Chinese Academy Sciences Beijing 100049 China National Center for Nanoscience and Technology Beijing 100190 China

The real-time second harmonic generation was employed to investigate the[2＋2]photodimerization of styrylquinoline（SQ） derivatives in Langmuir-Blodgett（LB） monolayers deposited from aqueous subphases with different *** was discovered that the photodimerization rate constant significantly decreased upon the addition of *** additional atomic force microscopy measurements revealed that surface morphologies were correlated to the photodimerization *** experimental results provide direct evidence for the topo-chemical mechanisms of[2＋2]photodimerization in LB *** current study demonstrates that the intermolecular interactions and aggregation structures play important roles in the photochemical properties at surfaces.

关键词： Second harmonic generation Photodimerization Langmuir-Blodgett monolayers Topo-chemical reaction Acidity effect

Cosmogenic 26Al/10Be Burial Dating of the Birth of the Present Hanjiang River

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Acta Geologica Sinica(English Edition) 2020年第1期94卷 214-215页

作者： XU Xinghua lu Chengqiu lu Yiming TU Hua WANG Shejiang SUN Xuefeng School of Geography and Ocean Science Nanjing UniversityNanjing 210023China Hubei Provincial Institute of Cultural Relics and Archaeology Wuhan 430077China BGEG School of Earth SciencesChina University of GeosciencesWuhan 430074China Key Laboratory of Vertebrate Evolution and Human Origins Institute of Vertebrate Paleontology and PaleoanthropologyChinese Academy of SciencesBeijing 100044China

Objective Structural lows and major rift systems provide the basis for the creation of large *** uplift of the Qinling and Daba Mountains structural belts and Tibetan Plateau would have provided the basis for the origin and northwest–southeast flow of the ancient Hanjiang River(lu et al.,2018).After a long-term evolution,the present pattern of Hanjiang River has been *** to six river terraces in the Hanzhong and Yunxian basins along the flanks of Hanjiang River valleys had been identified and some terraces had been dated by using optically stimulated luminescence(OSL),paleomagnetic,and electron spin resonance(ESR)dating methods,and correlating the pedostratigraphy and magnetic susceptibility with the luochuan loess section by our team(Sun et al.,2016,2017).These terraces are composed of fluvial deposits overlaid with eolian deposits,and record the evolution history of the Hanjiang River.(Fig.1).This study is aimed to deduce the birth time of the present Hanjiang River by using 26Al/10Be burial dating method to date the highest fluvial terraces of the Hanjiang River.

关键词： Be Burial Dating of the Birth of the Present Hanjiang River Cosmogenic

Adaptive Simplified Chicken Swarm Optimization Based on Inverted S-Shaped Inertia Weight

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Chinese Journal of Electronics 2022年第2期31卷 367-386页

作者： GU Yanchun lu Haiyan XIANG Lei SHEN Wanqiang School of Science Jiangnan University Wuxi Engineering Technology Research Center for Biological Computing Jiangnan University

Considering the issues of premature convergence and low solution accuracy in solving high-dimensional problems with the basic chicken swarm optimization algorithm, an adaptive simplified chicken swarm optimization algorithm based on inverted S-shaped inertia weight(ASCSO-S) is proposed. Firstly, a simplified chicken swarm optimization algorithm is presented by removing all the chicks from the chicken swarm. Secondly, an inverted S-shaped inertia weight is designed and introduced into the updating process of the roosters and hens to dynamically adjust their moving step size and thus to improve the convergence speed and solution accuracy of the algorithm. Thirdly, in order to enhance the exploration ability of the algorithm, an adaptive updating strategy is added to the updating process of the *** experiments on 21 classical test functions show that ASCSO-S is superior to the other comparison algorithms in terms of convergence speed, solution accuracy, and solution stability. In addition, ASCSO-S is applied to the parameter estimation of Richards model, and the test results indicate that ASCSO-S has the best fitting results compared with other three algorithms.

关键词： particle swarm optimisation solution stability adaptive simplified chicken swarm optimization algorithm parameter estimation Richards model solution accuracy swarm intelligence inverted S-shaped inertia weight convergence speed adaptive updating strategy convergence updating process ASCSO-S

Effect of operating conditions on the performance of riser reactor for oxidative coupling of methane Author links open overlay panel

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Particuology 2024年第8期91卷 235-248页

作者： Min Cai Shuangzhu Kong Mengxi Liu Chunxi lu State Key Laboratory of Heavy Oil Processing China University of PetroleumBeijing102249China

Oxidative coupling of methane(OCM)is characterized by high temperature and strong heat released.A riser reactor is designed for the OCM process to improve gas-solid contacting and heat *** work illustrates the effect of hydrodynamic conditions and feed gas composition on the performance of an OCM riser *** findings suggest that oxidative reactions predominantly occur within the acceleration zone and developed flow ***,at the low superficial gas velocity accompanied by a high solid circulating rate,the C_(2)yield initially increases in the acceleration zone,followed by a decrease in the developed flow zone and deceleration *** optimal operating conditions are a specific region corresponding to the solids holdup ranges from 0.015 to ***,the C_(2)yield can be elevated using an appropriate feed mixture.

关键词： Oxidative coupling of methane Riser Hydrodynamics Solids holdup

Online Measurements of High-band Grid Impedance Using Variable Frequency Carrier Based PWM Schemes

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CSEE Journal of Power and Energy Systems 2021年第1期7卷 128-139页

作者： Zheyu Miao Hao Tong Wenxi Yao zhengyu lu the College of Electrical Engineering Zhejiang UniversityHangzhou 310027China

Grid-connected power electronic devices, such asvoltage-source inverters (VSIs), are increasingly installed in thegrid for the utilization of renewable energy sources. Under highpenetration, the weak grid contains plentiful harmonics and complexgrid impedance values, which have deep impacts on systemstability as well as its control performance. Online impedancemeasurement is needed for impedance based adaptive controland analysis. This paper proposes a variable carrier frequencyPWM (VCFPWM) based online grid impedance measurementtechnology. This method broadens the available working rangein the high frequency band without increasing the low bandperturbations. Through good analysis and design of the carrierfrequency, the VCFPWM method injects sufficient harmonicenergy at specified high frequency points and guarantees lowTHDs at the same time. The detailed design considerations ofthe carrier frequency are clarified and the characteristics of theVCFPWM based excitations are analyzed in this paper. Finally,the simulation and experimental results based on a three-phasegrid-connected VSI are presented to verify the effectiveness ofthe proposed method.

关键词： Carrier frequency harmonic impedance measurement voltage-source inverters weak grid