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The Impact of the linked Factors of Provenance,Tectonics and Climate on Potash Formation:An Example from the Potash Deposits of lop Nur Depression in Tarim Basin,Xinjiang,Western China

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Acta Geologica Sinica(English Edition) 2015年第6期89卷 2030-2048页

作者： l.u Chenglin JIAO Pengcheng lü Fenglin WANG Yongzhi SuN xiaohong ZHANG Hua WANG licheng YAO Fojun MlR Key laboratory of Metallogeny and Mineral Assessment Institute of Mineral ResourcesChinese Academy of Geological Sciences School of Earth Sciences and Resources China University of Geosciences College of Instrumentation & Electrical Engineering Jilin University

Potash deposits commonly accumulate in highly restricted settings at the final stage of brine evaporation. This does not mean that potash deposits are formed simply as a result of the evaporation concentration of seawater or lake water, but rather as a coupling result of particular provenance, tectonics and climate activities. In this paper, we focus on the formative mechanism of the potash deposits of lop Nur depression in Tarim Basin to interpret the detailed coupling mechanism among provenance, tectonics and climate. In terms of the provenance of lop Nur lake, the water of the Tarim River which displays ＂potassium-rich＂ characteristics play an important role. In addition, the Pliocene and lower-Middle Pleistocene clastic beds surrounding lop Nur lake host a certain amount of soluble potassium and thus serves as ＂source beds＂ for potash formation. During the late Pliocene, the lop Nur region has declined and evolved into a great lake from the previous piedmont and diluvial fan area. Since the mid Pleistocene, the great-united lop Nur lake has been separated and has generated a chain system consisting of Taitema lake, Big Ear lake and luobei lake which has turned into the deepest sag in lop Nur lake. Dry climate in lop Nur region has increased since the Pliocene, and became extreme at the late Pleistocene. The study implies that potash formation in lop Nur lake depends on the optimal combination of extreme components of provenance, tectonics and climate during a shorter-term period. The optimal patterns of three factors are generally characterized by the long-term accumulation and preliminary enrichment of potassium, the occurrence of the deepest sub-depression and the appearance of an extremely arid climate in lop Nur region. These factors have been interacting synergistically since the forming of the saline lake and in the later stages strong ＂vapor extraction＂ caused by extremely arid climate is needed to trigger large scale mineralization of potash deposits.

关键词： Potash formation coupling mechanism provenance tectonics climate lop Nur Tarim basin

Real-Time Facial Pose Estimation and Tracking by Coarse-to-Fine Iterative Optimization

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Tsinghua Science and Technology 2020年第5期25卷 690-700页

作者： Xiaolong Yang xiaohong Jia Mengke Yuan Dong-Ming Yan the Key laboratory of Mathematics Mechanization Academy of Mathematics and Systems SciencesChinese Academy of SciencesBeijing 100190China the university of Chinese Academy of Sciences Beijing 100049China the National laboratory of Pattern Recognition Institute of AutomationChinese Academy of SciencesBeijing 100190China

We present a novel and efficient method for real-time multiple facial poses estimation and tracking in a single frame or ***,we combine two standard convolutional neural network models for face detection and mean shape learning to generate initial estimations of alignment and ***,we design a bi-objective optimization strategy to iteratively refine the obtained *** strategy achieves faster speed and more accurate ***,we further apply algebraic filtering processing,including Gaussian filter for background removal and extended Kalman filter for target prediction,to maintain real-time tracking *** general RGB photos or videos are required,which are captured by a commodity monocular camera without any priori or *** demonstrate the advantages of our approach by comparing it with the most recent work in terms of performance and accuracy.

关键词： facial pose recognition facial pose estimation real-time tracking

Two-moment Bulk Stratiform Cl.ud Microphysics in the Grid-point Atmospheric Model of IAP lASG (GAMIl)

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Advances in Atmospheric Sciences 2013年第3期30卷 868-883页

作者：史湘军王斌 xiaohong l.u Minghuai WANG State Key laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric Physics Chinese Academy of Sciences Hebei Key laboratory for Meteorology and Ecoenvironment Hebei Climate Center Pacific Northwest National laboratory

A two-moment bulk stratiform microphysics scheme, including recently developed physically-based droplet activation/ice nucleation parameterizations has been implemented into the Grid-point Atmospheric Model of IAP lASG （GAMIl） as an effort to enhance the model＇s capability to simulate aerosol indirect effects. unlike the previous one-moment cl.ud microphysics scheme, the new scheme produces a reasonable rep- resentation of cl.ud particle size and number concentration. This scheme captures the observed spatial variations in cl.ud droplet number concentrations. Simulated ice crystal number concentrations in cirrus cl.uds qualitatively agree with in situ observations. The longwave and shortwave cl.ud forcings are in better agreement with observations. Sensitivity tests show that the column cl.ud droplet number concentrations cal.ulated from two different droplet activation parameterizations are similar. However, ice crystal number concentration in mixed-phased cl.uds is sensitive to different heterogeneous ice nucleation formulations. The simulation with high ice crystal number concentration in mixed-phase cl.uds has less liquid water path and weaker cl.ud forcing. ~rthermore, ice crystal number concentration in cirrus cl.uds is sensitive to different ice nucleation parameterizations. Sensitivity tests also suggest that the impact of pre-existing ice crystals on homogeneous freezing in old cl.uds should be taken into account.

关键词： two-moment cl.ud microphysics scheme atmospheric model

leader-following consensus of multi-agent systems with switching topologies and time-delays

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控制理论与应用（英文版） 2013年第2期11卷 306-310页

作者： ling GuO xiaohong NIAN Huan PAN School of Information Science and Engineering Central South University

This paper investigates the leader-following consensus problem of multi-agent systems where the leader is static and the controlling effect of each follower depends on its own state. The control protocols are proposed for two cases： i） for network with switching topologies and undirected information flow; ii） for network with directed information flow and communication time-delays. With the aid of several tools from algebraic graph, matrix theory and stability the- ory, the sufficient conditions guaranteeing leader-following consensus are obtained by constructing appropriate lyapunov functions. Simulations are presented to demonstrate the effectiveness of our theoretical results.

关键词： leader-following consensus Multi-agent systems Switching topology Time-delays

Time Dependant Weld Shape in Ar-O_2 Shielded Stationary GTA Welding

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Journal of Materials Science & Technology 2007年第5期23卷 650-654页

作者： Shanping l.u Dianzhong lI Hidetoshi Fujii Kiyoshi Nogi Institute of Metal Research Chinese Academy of Sciences Shenyang 110016 Chian Joining and Welding Research Institute Osaka University Osaka567-0047 Japan

The stationary gas tungsten arc welding （GTA） is carried out on SuS304 stainless steel.under Ar-0.1%O2 and Ar-0.3%O2 mixed shielding to observe the evolution of the molten pool and investigate the role of Marangoni convection on the weld shape. After welding, the oxygen content in the weld metal was measured by using an oxygen/nitrogen analyzer. Small addition of oxygen to the argon based shielding gas can effectively adjust the weld pool oxygen content. Oxygen plays an important role as an surface active element in determining the pattern of Marangoni convection in the stainless steel weld pool. When the weld metal oxygen content is over the critical value, 0.01 wt pct, corresponding to the Ar-0.3%O2 mixed shielding gas, the Marangoni convection changes from outward to inward direction and the weld shape dramatically changes from wide shallow shape to narrow deep shape.

关键词： Marangoni convection Oxygen Weld shape

Sensory changes, C-and A-fiber function, and shoulder-hand syndrome in hemiplegic patients after stroke

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Neural Regeneration Research 2008年第7期3卷 760-763页

作者： Yi Yuan xiaohong Zi Xian Huang Department of Neurology the Third Xiangya Hospital Central South University Changsha 410013 Hunan Province China

BACKGROuND： Clinical diagnosis of various neurological disorders involving the sensory nerves depends primarily on subjective description, which cannot be quantitatively evaluated, and is also less reproducible and specific. Quantitative sensory testing methods can overcome these shortcomings and is currently used to identify the function of the C- and A-fibers. OBJECTIVE： To apply the quantitative sensory testing method for analyzing changes in temperature sensation, cryalgesia, thermalgesia, and vibration sense on the skin surface of hemiplegic patients with post-stroke shoulder-hand syndrome, and to analyze the relationship between these changes and shoulder-hand syndrome. DESIGN, TIME AND SETTING： A non-randomized, concurrent, control study was performed at the Clinic and Inpatient Department of the Third Xiangya Hospital, Central South university, between June 2000 and April 2001. PARTICIPANTS： Thirty post-stroke, hemiplegic patients were divided into shoulder-hand syndrome and control groups, according to whether patients exhibited shoulder-hand syndrome, with 15 patients in each group. METHODS： A TSA2001 quantitative sensory testing device （Medoc, Israel） was used for quantitative sensory testing. All sensory testing employed limits, testing temperature sense on the palm thenar eminence and vibration sense on the thumb metacarpal. Cold threshold was ≤ 28 ℃, warmth threshold was ≥ 36 ℃, cold-evoked pain threshold was ≤ 5 ℃, heat-evoked pain threshold was ≥ 51 ℃, vibration threshold was ≥ 5 μm/s; if a patient met one of these items, he/she was considered to be hypoanesthesia. MAIN OuTCOME MEASuRES： Cold, warm, cold-evoked pain, heat-evoked pain and vibration threshold changes on skin from the paralyzed upper extremity was measured in the shoulder-hand syndrome and control groups. RESulTS： Incidence of sensory disability in the shoulder-hand syndrome group increased more significantly than in the control group （P 〈 0.05）, with the primary manifestati

关键词： shoulder-hand syndrome stroke quantitative sensory testing

Effect of neuropeptide Y on white matter demyelination and serum interl.ukin-4 and gamma-interferon levels in the guinea pig with experimental allergic encephalomyelitis

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Neural Regeneration Research 2008年第5期3卷 554-557页

作者： xiaohong li Ke Yu Zuoxiao li Department of Neurology Affiliated Hospital of Luzhou Medical College Luzhou 646000 Sichuan University China Department of Educational Administration Affiliated Hospital of Luzhou Medical College Luzhou 646000 Sichuan University China

BACKGROuND： Neuropeptide Y （NPY） may influence differentiation of Th cells immunological pathology of experimental allergic encephalomyelitis （EAE） is differentiation of Th cells It is assumed that the related to abnormal OBJECTIVE： To investigate the effect of NPY on white matter demyelination, the serum levels interl.ukin-4 （Il-4） and gamma-interferon （IFN-γ ）, as well as EAE pathogenesis in an EAE guinea pig model following NPY injection into the lateral cerebral ventricle. DESIGN, TIME AND SETTING： A randomized controlled animal study, which was performed in the Infection Immunity Animal laboratory, Affiliated Hospital of luzhou Medical College, China, from October 2005 to April 2006. MATERIAlS： Thirty healthy female guinea pigs of 8-12 weeks of age, and 10 healthy female rats of three months of age were used. NPY was provided by Sigma Company, uSA. NPY kit was provided by Beijing Huaying Biotechnology Institute, China. METHODS： Thirty guinea pigs were randomly divided into three groups： normal control group, EAE model group, and NPY intervention group （n =10 per group）. Normal control group and EAE model group： Saline （10μ l, once） was injected into the lateral cerebral ventricle. After one week, the same volume of Freund＇s adjuvant complete was either injected subcutaneously into two post-palms or EAE was modeled. NPY intervention group： EAE was modeled after one week and NPY was injected （10 μ l of 6 nmol NPY, once） into the lateral cerebral ventricle. Myelin basic protein （MBP） antigen made from rat spinal cord homogenate and Freund＇s adjuvant complete were injected subcutaneously into both post-palms （0.2 ml per palm） to establish the EAE model. MAIN OuTCOME MEASuRES： White matter demyelination of the cerebrum, cerebel.um, brain stem, and spinal cord were observed by light microscopy after HE staining. levels of serum IFN-γ and Il-4 were detected by the double antibody sandwich ABC-ElISA technique. NPY content was detected by radioimmunoassay. RESulTS： Path

关键词： experimental allergic encephalomyelitis neuropeptide Y interl.ukin-4 gamma-interferon

Diagnosis of the Kinetic Energy of the“21·7”Extreme Torrential Rainfall Event in Henan Province,China

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Advances in Atmospheric Sciences 2024年第1期41卷 73-83页

作者： Xiuping YAO Ruoying lI xiaohong BAO Qiaohua l.u China Meteorological Administration Training Centre Beijing 100081China State Key laboratory of Severe Weather Chinese Academy of Meteorological SciencesBeijing 100081China College of Atmospheric Sciences Nanjing University of Information Science and TechnologyNanjing 210044China

An extreme torrential rain(ETR)event occurred in Henan Province,China,during 18-21 July *** on hourly rain-gauge observations and ERA5 reanalysis data,the ETR was studied from the perspective of kinetic energy(K),which can be divided into rotational wind(V_(R))kinetic energy(K_(R)),divergent wind kinetic energy(K_(D)),and the kinetic energy of the interaction between the divergent and rotational winds(K_(RD)).According to the hourly precipitation intensity variability,the ETR process was divided into an initial stage,a rapid increase stage,and maintenance *** showed that the intensification and maintenance of ETR were closely related to the upper-level K,and most closely related to the upperlevel K_(R),with a correlation coefficient of up to *** particular,the peak value of hourly rainfall intensity lagged behind the K_(R) by 8 ***,diagnosis showed that K transformation from unresolvable to resolvable scales made the ETR increase *** meridional rotational wind(u_(R))and meridional gradient of the geopotential(φ)jointly determined the conversion of available potential energy(APE)to K_(R) through the barotropic process,which dominated the rapid enhancement of K_(R) and then caused the rapid increase in *** transportation of K by rotational wind consumed K_(R),and basically offset the K_(R) produced by the barotropic process,which basically kept K_(R) stable at a high value,thus maintaining the ETR.

关键词： extreme torrential rain rotational kinetic energy kinetic energy generation and transport barotropic process

Force and impulse multi-sensor based on flexible gate dielectric field effect transistor

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International Journal of Minerals,Metal.urgy and Materials 2025年第1期32卷 214-220页

作者： Chao Tan Junling lü Chunchi Zhang Dong liang lei Yang Zegao Wang College of Materials Science and Engineering Sichuan UniversityChengdu 610065China The 54th Research Institute of China Electronics Technology Group Corporation Shijiazhuang 050081China

Nowadays,force sensors play an important role in industrial production,electronic information,medical health,and many other ***-dimensional material-based filed effect transistor(2D-FET)sensors are competitive with nano-level size,lower power consumption,and accurate ***,few of them has the capability of impulse detection which is a path function,expressing the cumulative effect of the force on the particle over a period of *** we fabricated the flexible polymethyl methacrylate(PMMA)gate dielectric MoS_(2)-FET for force and impulse sensor *** systematically investigated the responses of the sensor to constant force and varying forces,and achieved the conversion factors of the drain current signals(I_(ds))to the detected impulse(I).The applied force was detected and recorded by I_(ds)with a low power consumption of~30 *** sensitivity of the device can reach~8000%and the 4×1 sensor array is able to detect and locate the normal force applied on ***,there was almost no performance loss for the device as left in the air for two months.

关键词： flexible gate dielectric transistor force sensor impulse sensor force sensor array