|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Influences of prolate spheroidal baffle of sound diffraction on spatial directivity of acoustic vector sensor显示文摘The directivity of acoustic vector sensor (AVS) will be distorted by the sound diffraction of the AVS carrier. In this paper,the scattering of a plane acoustic wave from a prolate spheroid baffle is considered. At first,the sound diffraction of prolate spheroidal baffle is established,then the mathematical expressions of sound pressure field and particle vibration velocity field of sound diffraction are derived and the characteristic of the directivity of pressure and velocity of sound diffraction field at different frequencies and distances is analyzed. The directivity of AVS is determined by the amplitude and phase difference of diffraction wave and incident wave,which possesses a close relationship with frequency and incident angle. Finally,the calculated results are compared with the experimental results. | JI JianFei, LIANG GuoLong, WANG Yan & LIN WangSheng National Laboratory of Underwater Acoustic Technology, Harbin Engineering University, Harbin 150001, China | 2010 | Science China(Technological Sciences)2010，53，10： | 6 |
| 2 | 2-Diphenylphosphinoyl-acetyl as a Remote Directing Group for the Highly Stereoselective Synthesis ofβ-Glycosides显示文摘Comprehensive Summary The configuration of the anomeric glycosidic linkages is crucial for maintaining the biological functions and activities of carbohydrate molecules.However,their stereochemistry control in glycosylation represents one of the most challenging tasks in carbohydrate chemistry. | Xianglai Liu Yetong Lin Ao Liu Qianhui Sun Huiyong Sun Peng Xu Guolong Li Yingying Song Weijia Xie Haopeng Sun Biao Yu Wei Li | 2022 | Chinese Journal of Chemistry2022，40，4： | 2 |
| 3 | The construction and analysis of berth allocation plan and vessel shipping optimization model 显示文摘 | DING Yi LIN Guolong LIANG Chengji | 2012 | Int J Digital Content Teehnol & its Applications2012，6，11： | 1 |
| 4 | Dual-Use Signal Design for Radar and Communication via Joint Orthogonal Signal and Phase Modulation显示文摘This paper proposes a new information modulation resorting to orthogonal signal and its phase for dual-function radar communication(DFRC)systems.Focusing on the standardized linear frequency modulation(LFM)signal by additional phase,a bank of signals enjoying satisfactory autocorrelation and cross-correlation characteristics,are generated.Then,these signals map the different information as well as their phases are also modulated to increase the communication bit rate,thus yielding a series of dual-use signals.Finally,the radar detection and communication performance of dual-use signals are also provided through numerical simulation and half-physical platform verification,confirming the effectiveness of the designed signals compared with the existing design strategy. | Yu Lin Yi Bu Hui Qiu Xue Yao Xianxiang Yu Guolong Cui | 2021 | Journal of Beijing Institute of Technology2021，30，1： | 1 |
| 5 | Prevalence,Incidence,and Characteristics of Tuberculosis Among Known Diabetes Patients—A Prospective Cohort Study in 10 Sites,2013–2015显示文摘Summary What is already known about this topic?The association of diabetes mellitus(DM)with both increased risk of tuberculosis(TB)and unfavorable treatment outcomes has been identified by many studies(1).However,epidemic data for TB cases in DM patients is absent in China.What is added by this report?This current population-based prospective cohort study,conducted in ten counties located in eastern,central,and western China during 2013–2015,revealed a high prevalence and incidence of TB in known DM patients.Most TB cases were captured by active case-finding and a much higher presence of being asymptomatic among TB/DM patients was obtained.What are the implications for public health practice?Active case-finding should be carried out in DM patients and populations at high risk for developing TB.A TB symptom screening-based case-finding strategy is not enough;chest radiography check should be done once a year for these patients. | Jun Cheng Yanling Yu Qiongjin Ma Zhijian Wang Qingrong Zhou Guolong Zhang Shuangyi Hou Lin Zhou Feiying Liu Lan Xia Lin Xu Canyou Zhang Yinyin Xia Hui Chen Hui Zhang Lixia Wang | 2022 | China CDC weekly2022，4，3： | 0 |
| 6 | Establishment of an astronomical time scale for the Shizigou Formation in the Qaidam Basin,Inner Asia and orbital forced evolution of lakes during The Pliocene显示文摘The Qaidam Basin,as the largest inland basin within the Tibetan Plateau,has accumulated more than 10,000 m of Cenozoic continental sediments.It serves as a crucial research area for documenting Cenozoic climate changes and plateau uplift processes in the Asian interior.Additionally,the basin holds vast reserves of oil and gas resources,making high-resolution drilling data invaluable for studying paleoclimate.In this study,the longsequence lacustrine deposits of JS1 drill core across the Shizigou Formation in the Yiliping Depression at the western center of the basin were studied,aiming to establish an astronomical timescale for the Shizigou Formation and investigate the characteristics of paleoclimatic changes during the late Miocene to the Pliocene for the Asian interior.The analysis was carried out using high-resolution natural gamma ray(GR)data sequences,employing techniques such as spectral analysis,filtering,and wavelet analysis in cyclostratigraphy.The results indicated the presence of a stable Milankovitch orbital signal was perfectly recorded in the Shizigou Formation,primarily influenced by eccentricity cycles,with weaker obliquity and precession cycles.Using the stable and continuous 405 ka eccentricity cycle in astronomical tuning,a'floating'astronomical timescale with a duration of 6.1 Ma for the Yiliping depression's Shizigou Formation has been established.With reference to previously established stratigraphic age anchor points,an absolute astronomical timescale(2.5–8.6 Ma)has been ultimately provided for the Shizigou Formation.Simultaneously,a clear 100 ka short eccentricity cycle record has been identified during the Pliocene(5.3–2.5 Ma),which corresponds in time with the aridification within the basin during this Pliocene period.In addition,a comparison of the Pliocene natural gamma ray curve of the Qaidam Basin with global ice volume variations indicated that the basin's aridification was influenced by global cooling,with eccentricity-modulated precession cycles controlling solar radiation and subsequently affecting the evolution of lakes in the arid region of Inner Asia. | DunZhu JiaoBa MingZhen Zhang GuoLong Liu JianGuo Hui ShaoHua Lin AiJing Li Jing Zhang Jing Peng YiQiao Fu | 2023 | Research in Cold and Arid Regions2023，15，5： | 0 |
| 7 | Study of Denoising in the Electricity Anti-Stealing Detection Based on VMD-WTD Combination显示文摘In order to solve the failure of electricity anti-stealing detection device triggered by the noise mixed in high-frequency electricity stealing signals,a denoising method based on variational mode decomposition(VMD)and wavelet threshold denoising(WTD)was applied to extract the effective high-frequency electricity stealing signals.First,the signal polluted by noise was pre-decomposed using the VMD algorithm,the instantaneous frequency means of each pre-decomposed components was analyzed,so as to determine the optimal K value.The optimal K value was used to decompose the polluted signal into K intrinsic mode components,and the sensitive mode components were determined through the cross-correlation function.Next,each sensitive mode was reconstructed.Finally,the reconstructed signal denoised using the wavelet threshold to obtain the denoised signal.The simulation analysis and experimental results show that the proposed method is superior to the traditional VMD method,FFT method and EMD method,as it can effectively eliminate the noise and enhance the reliability of high-frequency electricity stealing signal detection. | Huakun Que Guolong Lin Wenchong Guo Xiaofeng Feng Zetao Jiang Yunfei Cao Jinmin Fan Zhixian Ni | 2022 | Energy Engineering2022，119，4： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员