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| 1 | Direct reprogramming of Sertoli cells into multipotent neural stem cells by defined factors显示文摘Multipotent 神经干细胞为房间治疗保持大诺言。到导致的 pluripotent 干细胞以及成熟神经原的成纤维细胞的 reprogramming 建议可能性没有首先建立 pluripotency,把一个严重地区分的体的房间变换成一个 multipotent 状态。这里,我们证明房间从中层导出的那 Sertoli 能直接被变换成拥有神经干细胞性质的一个 multipotent 状态。导致的神经干细胞(iNSCs ) 表示多重 NSC 特定的标记,展出类似于正常 NSC 的全球基因表示侧面,并且能够自强并且区分功能的神经原进神经胶质并且 electrophysiologically。为酷氨酸 hydroxylase (TH ) 积极的导出 iNSC 的神经原污点, γ -aminobutyric 酸,和胆碱 acetyltransferase。另外, iNSCs 能熬过并且产生跟随移植进有牙齿的回转的触处。iNSCs 的产生可以为疾病建模和再生药有重要含意。 | Chao Sheng Qinyuan Zheng Jianyu Wu Zhen Xu Libin Wang Wei Li Haijiang Zhang Xiao-Yang Zhao Lei Liu Ziwei Wang Changlong Guo Hua-Jun Wu Zhonghua Liu Liu Wang Shigang He Xiu-Jie Wang Zhiguo Chen Qi Zhou | 2012 | Cell Research2012，22，1： | 31 |
| 2 | The oasis expansion and eco-environment change over the last 50 years in Manas River Valley, Xinjiang显示文摘The oasis expansion and economic development of the Manas River Valley is one of the most successful examples in Xinjiang. In this paper, the oasis spatial distribution pattern and dynamic change were examined using imageries of Landsat MSS, TM and ETM, land use and topographic maps in six different periods (such as 1949, 1962, 1976, 1989, 1999 and 2001) over the last 50 years in the valley. The oasis expansion process could be divided into two stages according to the annual rate of oasis area increase, the fast oasization stage (from 1949 to 1976) when the oasis area ex-panded from 156.385 km2 in 1949 to 3,639.491 km2 in 1976 because of rapidly increased population and quickly enlarged farmland area; and the urbanization stage (from 1976 to 2001) when the ex-pansion ratio of farmland slowed down, and the urbanization process quickened, the total oasis area reached 5042.440 km2 in 2001. With the continuous expansion of oasis and farmland, a large quantity of river water was drawn into irrigation ditch and plain lakes, so only a small quantity of river water could flow into lakes, as a result, the Manas Lake dried up, salization and basification problems happened in the low-lying oasis region. The natural swamp around the lake was shrunk greatly and biodiversity decreased significantly. The driving force analysis reveals that human activities, such as reclamation and population growth, played a major role in the oasis expansion and ecological dete-rioration in the Manas River Valley. So further efforts should be made to improve the efficiency of water resource utility and adjust layout of the regional agricultural and animal husbandry to keep the sustainable development of oasis economic belt of the northern slope of Tianshan Mts. | CHENG Weiming ZHOU Chenghu LIU Haijiang ZHANG Yang JIANG Yan ZHANG Yichi YAO Yonghui | 2006 | Science China Earth Sciences2006，49，2： | 24 |
| 3 | Research and compilation of the Geomorphologic Atlas of the People's Republic of China (1:1,000,000)显示文摘Geomorphologic maps are one of the most fundamental materials of the natural environment. They have been widely used in scientific research,resource exploration and extraction,education and military affairs etc. An editorial committee was established in 2001 to collect materials for researching and compiling a set of new 1:1,000,000 geomorphologic atlas of China. A digital geomorphologic database was created with visual interpretation from Landsat TM/ETM imageries and SRTM-DEM etc. The atlas compiled from the database was finished. The main characteristics of the atlas are as follows:Firstly,Landsat TM/ETM imageries,published geomorphologic maps or sketches,geographical base maps,digital geological maps,and other thematic maps were collected,which were uniformly geometrically rectified,clipped into uniform sheets,and stored in the foundation database. Secondly,based on the legends of 15 sheets 1:1,000,000 maps published in the 1980s,a geomorphologic classification system was built by combining morphology and genesis types. The system comprised seven hierarchical layers:basic morphology,genesis,sub-genesis,morphology,micro-morphology,slope and aspect,material composition and lithology. These layers were stored in the database during visual image interpretation. About 2000 kinds of morpho-genesis and 300 kinds of morpho-structure were interpreted. Thirdly,the legend system was built,which included color,symbol bases and note bases etc.,compilation standards and procedures were developed,74 sheets of 1:1,000,000 covering all land and sea territories of China were compiled,the 1:1,000,000 geomorphologic atlas of the People's Republic of China was finished and published. The atlas will fill the blanks in national basic scale thematic maps,and the geomorphologic database could be applied widely in many fields in the future. | CHENG Weiming ZHOU Chenghu CHAI Huixia ZHAO Shangmin LIU Haijiang ZHOU Zengpo | 2011 | Journal of Geographical Sciences2011，21，1： | 17 |
| 4 | 超级贝氏体钢中贝氏体转变的一种新的定量分析方法显示文摘用高温激光扫描共聚焦显微镜原位观察超级贝氏体钢中贝氏体的形核和生长。直接观察贝氏体转过程的形貌。而且做贝氏体转变的热模拟试验,用膨胀测量法记录。贝氏体钢的贝氏体转变过程在热机械拟器上用激光扫描共聚焦显微镜和膨胀测量法组合的新方法进行定量分析。 | Guang Xu Feng Liua Li Wang Haijiang Hu | 2013 | 热处理技术与装备2013，34，4： | 14 |
| 5 | Dynamic GM(1,1) Model Based on Cubic Spline for Electricity Consumption Prediction in Smart Grid显示文摘Electricity demand forecasting plays an important role in smart grid expansion planning.In this paper,we present a dynamic GM(1,1) model based on grey system theory and cubic spline function interpolation principle.Using piecewise polynomial interpolation thought,this model can dynamically predict the general trend of time series data.Combined with low-order polynomial,the cubic spline interpolation has smaller error,avoids the Runge phenomenon of high-order polynomial,and has better approximation effect.Meanwhile,prediction is implemented with the newest information according to the rolling and feedback mechanism and fluctuating error is controlled well to improve prediction accuracy in time-varying environment.Case study using the living electricity consumption data of Jiangsu province in 2008 is presented to demonstrate the effectiveness of the proposed model. | WANG Xiaojia YANG Shanlin DING Jing WANG Haijiang | 2010 | China Communications2010，7，4： | 10 |
| 6 | Physical model test study on shear strength characteristics of slope sliding surface in Nanfen open-pit mine显示文摘A physical model for the footwall slope of Nanfen open-pit mine, China was established using a selfdeveloped deep geological engineering disaster model test system. A thermosensitive similar material,paraffin, was selected to simulate a weak structural plane in the slope to reproduce the landslide process.From an experimental perspective, the variation trend of shear strength parameters of weak structural plane and the mechanical support characteristics of NPR(negative Poisson’s ratio) anchor cable under the condition of a large landslide deformation and failure were examined. The results of this model test showed that slope failure has four distinct stages:(1) soil compaction stage,(2) crack generation stage,(3) crack propagation stage, and(4) sliding plane transfixion stage. According to the test results, the rock mechanics parameters of weak surface in the footwall slope of Nanfen open-pit mine were calculated.The cohesion is approximately 1.35×10~5 Pa, and the internal friction angle is approximately 6.33°.During slope failure, the NPR anchor cable experiences a large deformation but no damage occurs, indicating that the NPR anchor cable can be continuously monitored and reinforced during the deformation and failure of landslide. The stress characteristics of NPR anchor cables during the test are consistent with the monitoring results of Newtonian force at the landslide site, proving that NPR anchor cables are effective and reasonable in landslide monitoring and early warning. | Zhigang Tao Yu Shu Xiaojie Yang Yanyan Peng Qihang Chen Haijiang Zhang | 2020 | International Journal of Mining Science and Technology2020，30，3： | 8 |
| 7 | Climate effects on an inland alpine lake in Xinjiang, China over the past 40 years显示文摘Inland lakes are important water resources in arid and semiarid regions. Understanding climate effects on these lakes is critical to accurately evaluate the dynamic changes of water resources. This study focused on the changes in Sayram Lake of Xinjiang, China, and addressed the effects of climate fluctuations on the inland lake based on long-term sequenced remote sensing images and meteorological data from the past 40 years. A geographic information system (GIS) method was used to obtain the hypsometry of the basin area of Sayram Lake, and estimation methods for evaporation from rising temperature and water levels from increasing precipitation were proposed. Results showed that: (1) Areal values of Sayram Lake have increased over the past 40 years. (2) Both temperature and precipitation have increased with average increases of more than 1.8℃ and 82 mm, respectively. Variation of the water levels in the lake was consistent with local climate changes, and the areal values show linear relationships with local temperature and precipitation data. (3) According to the hypsometry data of the basin area, the estimated lake water levels increased by 2.8 m, and the water volume increased by 12.9×10 8 m3 over the past 40 years. The increasing area of Sayram Lake correlated with local and regional climatic changes because it is hardly affected by human activities. | HuiXia CHAI WeiMing CHENG ChengHu ZHOU ShangMin ZHAO HaiJiang LIU | 2013 | Journal of Arid Land2013，5，2： | 7 |
| 8 | Frequency-dependent rupture process,stress change,and seismogenic mechanism of the 25 April 2015 Nepal Gorkha M_w 7.8 earthquake显示文摘On 25 April 2015,an M_w 7.8 earthquake occurred on the Main Himalaya Thrust fault with a dip angle of^7° about77 km northwest of Kathmandu,Nepal.This Nepal Gorkha event is the largest one on the Himalayan thrust belt since 1950.Here we use the compressive sensing method in the frequency domain to track the seismic radiation and rupture process of this event using teleseismic P waves recorded by array stations in North America.We also compute the distribution of static shear stress changes on the fault plane from a coseismic slip model.Our results indicate a dominant east-southeastward unilateral rupture process from the epicenter with an average rupture speed of ~3 km s^(-1).Coseismic radiation of this earthquake shows clear frequency-dependent features.The lower frequency(0.05-0.3 Hz) radiation mainly originates from large coseismic slip regions with negative coseismic shear stress changes.In comparison,higher frequency(0.3-0.6 Hz) radiation appears to be from the down-dip part around the margin of large slip areas,which has been loaded and presents positive coseismic shear stress changes.We propose an asperity model to interpret this Nepal earthquake sequence and compare the frequency-dependent coseismic radiation with that in subduction zones.Such frequency-dependent radiation indicates the depth-varying frictional properties on the plate interface of the Nepal section in the main Himalaya thrust system,similar to previous findings in oceanic subduction zones.Our findings provide further evidence of the spatial correlation between changes of static stress status on the fault plane and the observed frequency-dependent coseismic radiation during large earthquakes.Our results show that the frequency-dependent coseismic radiation is not only found for megathrust earthquakes in the oceanic subduction environment,but also holds true for thrust events in the continental collision zone. | YIN JiuXun YAO HuaJian YANG HongFeng LIU Jing QIN WeiZe ZHANG HaiJiang | 2017 | Science China Earth Sciences2017，60，4： | 7 |
| 9 | Control of neotectonic movement on hydrocarbon accumulation in the Kuqa Foreland Basin,west China显示文摘Neotectonic movement refers to the tectonic movement that has happened since the Cenozoic,which is the latest movement. It has the most important influence on the basins in west China,especially on the hydrocarbon accumulation in the western foreland basins. We determined the time of neotectonic movement in the Kuqa Foreland Basin,which began from the Neogene,and analyzed the patterns of movement,which were continuous and fast subsidence in the vertical direction and intense lateral compression. The structure styles are that the faulting is weakened and the folding is strengthened gradually from north to south. We studied the control of neotectonic movement on the hydrocarbon accumulation process and model in the Kuqa Foreland Basin with basin simulation technique. The largest subsidence rate of the Kuqa Foreland Basin reached 1,200 m/Ma during the neotectonic movement,leading to rapid maturing of source rock within 5 Ma and a large quantity of hydrocarbon being generated and expelled. The thick neotectonic strata can form high quality reservoirs with the proved gas and oil reserves accounting for 5% and 27% of the total reserves,respectively. 86% of the structural traps were formed in the neotectonic movement period. The faults formed during the neotectonic movement serve as important migration pathways and they exist in the region where the hydrocarbon reservoirs are distributed. Abnormally high pressure caused by the intense lateral compression,thick neotectonic strata deposition and rapid hydrocarbon generation provide driving force for hydrocarbon migration. The accumulation elements match each other well over a short period,leading to many large gas fi elds formed later in the Kuqa Foreland Basin. | Jiang Zhenxue Li Lianxia Song Yan Tian Fenghua Zhao Mengjun Wang Haijiang Zhao Zhenxing | 2010 | Petroleum Science2010，7，1： | 6 |
| 10 | Role of MR-DWI and MR-PWI in the radiotherapy of implanted pulmonary VX-2 carcinoma in rabbits显示文摘Objective: To detect the activity of tumor cells and tumor blood flow before and after the radiotherapy of implanted pulmonary VX-2 carcinoma in rabbit models by using magnetic resonance diffusion-weighted imaging(MR-DWI) and magnetic resonance perfusion weighted imaging(MR-PWI), and to evaluate the effectiveness and safety of the radiotherapy based on the changes in the MR-DWI and MR-PWI parameters at different treatment stages.Methods: A total of 56 rabbit models with implanted pulmonary VX-2 carcinoma were established, and then equally divided into treatment group and control group. MR-DWI and MR-PWI were separately performed using a Philips Acheiva 1.5T MRI machine(Philips, Netherland). MRI image processing was performed using special perfusion software and the WORKSPACE advanced workstation for MRI. MRDWI was applied for the observation of tumor signals and the measurement of apparent diffusion coefficient(ADC) values; whereas MR-PWI was used for the measurement of wash in rate(WIR), wash out rate(WOR), and maximum enhancement rate(MER). The radiation treatment was performed using Siemens PRIMUS linear accelerator. In the treatment group, the radiotherapy was performed 21 days later on a once weekly dosage of 1,000 c Gy to yield a total dosage of 5,000 c Gy.Results: The ADC parameters in the region of interest on DWI were as follows: on the treatment day for the implanted pulmonary VX-2 carcinoma, the t values at the center and the edge of the lesions were 1.352 and 1.461 in the treatment group and control group(P>0.05). During weeks 0-1 after treatment, the t values at the center and the edge of the lesions were 1.336 and 1.137(P>0.05). During weeks 1-2, the t values were 1.731 and 1.736(P<0.05). During weeks 2-3, the t values were 1.742 and 1.749(P<0.05). During weeks 3-4, the t values were 2.050 and 2.127(P<0.05). During weeks 4-5, the t values were 2.764 and 2.985(P<0.05). The ADC values in the treatment group were significantly higher than in the control group. After the radiotherapy(5,000 c Gy), the tumors remarkably shrank, along with low signal on DWI, decreased signal on ADC map, and remarkably increased ADC values. As shown on PWI, on the treatment day for the implanted pulmonary VX-2 carcinoma, the t values of the WIR, WOR, and MER at the center of the lesions were 1.05, 1.31, and 1.33 in the treatment group and control group(P>0.05); in addition, the t values of the WIR, WOR, and MER at the edge of the lesions were 1.35, 1.07, and 1.51(P>0.05). During weeks 0-1 after treatment, the t values of the WIR, WOR, and MER at the center of the lesions were 1.821, 1.856, and 1.931(P<0.05); in addition, the t values of the WIR, WOR, and MER at the edge of the lesions were 1.799, 2.016, and 2.137(P<0.05). During weeks 1-1 after treatment, the t values of the WIR, WOR, and MER at the center of the lesions were 2.574, 2.156, and 2.059(P<0.05) and the t values of the WIR, WOR, and MER at the edge of the lesions were 1.869, 2.058, and 2.057(P<0.05). During weeks 2-3 after treatment, the t values of the WIR, WOR, and MER at the center of the lesions were 2.461, 2.098, and 2.739(P<0.05) and the t values of the WIR, WOR, and MER at the edge of the lesions were 2.951, 2.625, and 2.154(P<0.05). During weeks 3-4 after treatment, the t values of the WIR, WOR, and MER at the center of the lesions were 2.584, 2.107, and 2.869(P<0.05) and the t values of the WIR, WOR, and MER at the edge of the lesions were 2.057, 2.637, and 2.951(P<0.05). During weeks 4-5 after treatment, the t values of the WIR, WOR, and MER at the center of the lesions were 2.894, 2.827, and 3.285(P<0.05) and the t values of the WIR, WOR, andMER at the edge of the lesions were 3.45, 3.246, and 3.614(P<0.05). After the radiotherapy(500 c Gy), the tumors shrank on the T1 WI, WIR, WOR, and MER; meanwhile, the PWI parameter gradually decreased and reached its minimum value.Conclusions: MR-DWI and MR-PWI can accurately and directly reflect the inactivation of tumor cells and the tumor hemodynamics in rabbit models with implanted pulmonary VX-2 carcinoma, and thus provide theoretical evidences for judging the clinical effectiveness of radiotherapy for the squamous cell carcinoma of the lung. | Qiang Zhang Mingmin Zhang Zhaoxin Liu Baoqi Shi Fuliang Qi Haijiang Wang Yuan Lv Haijiao Jin Weijing Zhang | 2014 | Chinese Journal of Cancer Research2014，26，5： | 5 |
| 11 | Support principles of NPR bolt/cable and control techniques of large-deformation disasters显示文摘Deep mining has been paid much more attention because of the depletion of shallow mining resources.Traditional bolts could be invalid to accommodate large displacement and deformation in geomaterials.Consequently, alternative support and reinforcement bolts need to be studied and their constitutive models also need to be developed to help understanding for the complex stress-strain responses of rock masses under loadings. The effect of Negative Poisson's Ratio(NPR) that is attributed to the swelling phenomenon along the lateral direction may appear in metal materials under tensional loadings. Thence NPR materials often have an advantage over NPR ones in mechanical behavior such as impact resistance, antishearing, and energy absorbed. From the characteristics of NPR materials, a series of bolt and cable supports with the effect of NPR and constant-resistance have been recently developed. We here firstly introduce the structural features of NPR support. Then the constitutive model of NPR support is presented and its corresponding equation of energy equilibrium. Its basic principle interacted on rock masses is further discussed. Finally, NPR cables are employed to support the slope of an open-pit mine. The applications show that NPR cables can ease failure within the slope and play an important role in predicting and providing early warning of slope failure, together with a monitoring system of slope stability. | Tao Zhigang Zhang Haijiang Chen Yifan Jiang Chaochao | 2016 | International Journal of Mining Science and Technology2016，26，6： | 5 |
| 12 | Timing and Source of the Hermyingyi W-Sn Deposit in Southern Myanmar,SE Asia:Evidence from Molybdenite Re-Os Age and Sulfur Isotopic Composition显示文摘赫米英吉钨锡矿位于缅甸南部,是一处典型的石英脉型钨锡矿床.矿区出露的地层为石炭系的丹老群变沉积岩,其中有晚白垩世(ca.70Ma)二长花岗岩侵入.含矿石英脉主要赋存在二长花岗岩中.根据矿物组合特征和穿插关系,可将该矿床的成矿作用划分为4个成矿阶段:(1)硅酸盐-氧化物阶段;(2)石英-硫化物阶段;(3)无矿石英脉阶段;(4)表生富集阶段.我们对矿石中挑选出的5个辉钼矿样品进行了Re-Os同位素定年,获得了较一致的模式年龄,变化为67.8±1.6 Ma到69.2±1.6Ma,等时线年龄为68.4±2.5Ma.成矿年龄与二长花岗岩的成岩年龄(70.0±0.4 Ma)在误差范围内一致,指示成矿石英脉的形成主要与花岗岩有关.辉钼矿具有非常低的Re含量(22.9~299ppb),显示成矿物质主要为壳源。硫化物的δ34S值变化在+1.9~+5.6‰,也指示成矿物质主要来自含矿花岗岩. | HaiJiang ShaoYongjiang LiWenqian Zhao Kuidong | 2019 | 地球科学2019，44，2： | 4 |
| 13 | Determination of the local magnitudes of small earthquakes using a dense seismic array in the Changning-Zhaotong Shale Gas Field,Southern Sichuan Basin显示文摘With the development of unconventional shale gas in the southern Sichuan Basin,seismicity in the region has increased significantly in recent years.Though the existing sparse regional seismic stations can capture most earthquakes with ML≥2.5,a great number of smaller earthquakes are often omitted due to limited detection capacity.With the advent of portable seismic nodes,many dense arrays for monitoring seismicity in the unconventional oil and gas fields have been deployed,and the magnitudes of those earthquakes are key to understand the local fault reactivation and seismic potentials.However,the current national standard for determining the local magnitudes was not specifically designed for monitoring stations in close proximity,utilizing a calibration function with a minimal resolution of 5 km in the epicentral distance.That is,the current national standard tends to overestimate the local magnitudes for stations within short epicentral distances,and can result in discrepancies for dense arrays.In this study,we propose a new local magnitude formula which corrects the overestimated magnitudes for shorter distances,yielding accurate event magnitudes for small earthquakes in the Changning-Zhaotong shale gas field in the southern Sichuan Basin,monitored by dense seismic arrays in close proximity.The formula is used to determine the local magnitudes of 7,500 events monitored by a two-phased dense array with several hundred 5 Hz 3 C nodes deployed from the end of February 2019 to early May 2019 in the Changning-Zhaotong shale gas field.The magnitude of completeness(MC)using the dense array is-0.1,compared to MC 1.1 by the sparser Chinese Seismic Network(CSN).In addition,using a machine learning detection and picking procedure,we successfully identify and process some 14,000 earthquakes from the continuous waveforms,a ten-fold increase over the catalog recorded by CSN for the same period,and the MC is further reduced to-0.3 from-0.1 compared to the catalog obtained via manual processing using the same dense array.The proposed local magnitude formula can be adopted for calculating accurate local magnitudes of future earthquakes using dense arrays in the shale gas fields of the Sichuan Basin.This will help to better characterize the local seismic risks and potentials. | Wen Yang GuoYi Chen LingYuan Meng Yang Zang HaiJiang Zhang JunLun Li | 2021 | Earth and Planetary Physics2021，5，6： | 4 |
| 14 | Clinicopathological Analysis of 39 Patients with Corneal Tumors显示文摘Purpose:Corneal tumors are rarely seen in clinical practice.There is a paucity of data on the incidence of various corneal tumors,their clinical and pathological features and surgical management,especially on large patient samples.Methods:The medical records of 39 patients with corneal tumors referred to Zhongshan Ophthalmic Center,Sun Yat-sen University,China from January 1,1996 to December 31,2002 were reviewed retrospectively.Results:Of the 39 cases with corneal tumors,31 were males and 8 were females.The right eye was affected in 24 cases and the left one in 15 cases.The mean age at diagnosis was 45.7 years,ranged from 3 to 88 years.Squamous cell carcinoma was the most common tumor in the cornea(18 cases,46.15%),followed by pigmented naevus.(12 cases,30.77%),papillary epithelioma(3 cases,7.69%),melanoma(1 case,2.56%),oncosis hyperplasia(1 case,2.56%),inverting papilloma.(1 case,2.56%),primary acquired melanosis(1 case,2.56%),amyloid degeneration(1 case,2.56%),inflammatory pseudotumor(1 case,2.56%).They arose most commonly in the limbal region.All tumors were unilaterally involved.Squamous cell carcinoma of the cornea usually appears as a whitish,rough,irregular lesion or a telangiectatic,gelatinous epibulbar mass.Nevus in the cornea generally becomes clinically apparent in the first or second decade of life and the lesion may enlarge or more deeply pigmented afterwards.The corneal tumors were completely excised microsurgically in 22 cases.Six cases were treated with surgical resection combined with amniotic membrane graft.Three cases with surgical excision plus transfer of conjunctival flap.Two cases with surgical excision plus lamellar keratoplasty.Two cases with surgical excision plus cryosurgery.Two cases with orbital exenteration.One case with enuleation.One case with incision biopsy and observation.Conclusion:Squamous cell carcinoma and nevus,the most common corneal tumors,accounted for 76.92% of all cases.The therapeutic outcomes depended upon early pathologic diagnosis and early surgical management. | Jianhua Yan Haijiang Qiu Yongping Li | 2011 | Eye Science2011，26，3： | 3 |
| 15 | Influence of substrate temperature on growth of a-Si:H films by reactive facing target sputtering deposition显示文摘Hydrogenated amorphous silicon(a-Si:H) films were deposited by reactive facing target sputtering(FTS) technique with a mixture of Ar and H2 reaction gas.Fourier transform infrared(FTIR) absorption,Raman scattering and ultraviolet-visible optical absorption are used to investigate the microstructure and optical properties of the deposited films.The decrease of the concentration of bonded hydrogen,especially that of(Si-H2)n with increasing substrate temperature(Ts),was observed in FTIR spectra,suggesting the atomic density increases and the concentration of microvoids decrease in a-Si:H films.The increase of both the short range order and the intermediate range order of amorphous network for a-Si:H films were verified by Raman scattering spectra,in which increasing Ts decreasing the band width of TO and the scattering intensity ratio ITA/ITO were obtained.All above results clarify the effect of increasing Ts on the microstructure amelioration for a-Si:H films.The reduction of disordered domains is correlated with the film growing process,where the increased surface diffusion mobility and etching of weak bonds is induced by increasing Ts.Furthermore,analysis of optical absorption indicates that the films with a lower optical band gap and a narrower band edge can be obtained by this FTS technique. | YU Wei,MENG LingHai,YUAN Jing,LU HaiJiang,WU ShuJie & FU GuangSheng College of Physics Science and Technology,Hebei University,Baoding 071002,China | 2010 | Science China(Physics,Mechanics & Astronomy)2010，53，5： | 3 |
| 16 | Internal States Influence the Representation and Modulation of Food Intake by Subthalamic Neurons显示文摘Deep brain stimulation of the subthalamic nucleus(STN)is an effective therapy for motor deficits in Parkinson’s disease(PD),but commonly causes weight gain in late-phase PD patients probably by increasing feeding motivation.It is unclear how STN neurons represent and modulate feeding behavior in different internal states.In the present study,we found that feeding caused a robust activation of STN neurons in mice(GCaMP6 signal increased by 48.4%±7.2%,n=9,P=0.0003),and the extent varied with the size,valence,and palatability of food,but not with the repetition of feeding.Interestingly,energy deprivation increased the spontaneous firing rate(8.5±1.5 Hz,n=17,versus 4.7±0.7 Hz,n=18,P=0.03)and the depolarization-induced spikes in STN neurons,as well as enhanced the STN responses to feeding.Optogenetic experiments revealed that stimulation and inhibition of STN neurons respectively reduced(by 11%±6%,n=6,P=0.02)and enhanced(by 36%±15%,n=7,P=0.03)food intake only in the dark phase.In conclusion,our results support the hypothesis that STN neurons are activated by feeding behavior,depending on energy homeostatic status and the palatability of food,and modulation of these neurons is sufficient to regulate food intake. | Haichuan Wu Xiang Yan Dongliang Tang Weixin Gi Yiwen Luan Haijiang Cai Chunyi Zhou Cheng Xiao | 2020 | Neuroscience Bulletin2020，36，11： | 3 |
| 17 | Estimating fisheye camera parameters from homography显示文摘This paper presents a method to linearly estimate fisheye camera model parameters from the homography induced by the space plane between two fisheye images.The homography is firstly calculated by using four feature points,instead of three points on the same line,in the fisheye image.And the constraint on the model parameters of fisheye camera can be derived from the homography under the assumption that fisheye camera model is a polynomial model.Then the model parameters for different order polynomials are computed.The proposed technique requires only multiple fisheye images to include a planar scene and need not a priori knowledge of 3D coordinate of the planar scene.Experimental results with synthetic data and real fisheye images demonstrate the validity of our method.The method can also be extended to fisheye image of other planar scene excluding the planar calibration object. | ZHU HaiJiang YANG Ping LI ShiGang | 2012 | Science China(Information Sciences)2012，55，9： | 3 |
| 18 | Development of a new high resolution waveform migration location method and its applications to induced seismicity显示文摘Locating seismic events is a central task for earthquake monitoring.Compared to arrival-based location methods,waveformbased location methods do not require picking phase arrivals and are more suitable for locating seismic events with noisy waveforms.Among waveform-based location methods,one approach is to stack different attributes of P and S waveforms around arrival times corresponding to potential event locations and origin times,and the maximum stacking values are assumed to indicate the correct event location and origin time.In this study,to obtain a high-resolution location image,we improve the waveform-based location method by applying a hybrid multiplicative imaging condition to characteristic functions of seismic waveforms.In our new stacking method,stations are divided into groups;characteristic functions of seismic waveforms recorded at stations in the same group are summed,and then multiplied among groups.We find that this approach can largely eliminate the cumulative effects of noise in the summation process and thus improve the resolution of location images.We test the new method and compare it to three other stacking methods,using both synthetic and real datasets that are related to induced seismicity occurring in petroleum/gas production.The test results confirm that the new stacking method can provide higher-resolution location images than those derived from currently used methods. | SiYu Miao HaiJiang Zhang YuYang Tan Ye Lin | 2021 | Earth and Planetary Physics2021，5，6： | 3 |
| 19 | Lithosphere architecture characterized by crust±mantle decoupling controls the formation of orogenic gold deposits显示文摘This study,via combined analysis of geophysical and geochemical data,reveals a lithospheric architecture characterized by crust-mantle decoupling and vertical heat-flow conduits that control orogenic gold mineralization in the Ailaoshan gold belt on the southeastern margin of Tibet.The mantle seismic tomography indicates that the crust-mantle decoupled deformation,defined from previous seismic anisotropy analysis,was formed by upwelling and lateral flow of the asthenosphere,driven by deep sub duction of the Indian continent,Our magnetotelluric and seismic images show both a vertical conductor across the Moho and high Vp/Vs anomalies both in the uppermost mantle and lowest crust,suggesting that crust-mantle decoupling promotes ponding of mantle-derived basic melts at the base of the crust via a heat-flow conduit.Noble gas isotope and halogen ratios of gold-related ore minerals indicate a mantle source of ore fluid.A rapid decrease in Cl/F ratios of lamprophyres under conditions of 1.2 GPa and1050℃suggests that the ore fluid was derived from degassing of the basic melts.Similar lithospheric architecture is recognized in other orogenic gold provinces,implying analogous formational controls. | Zengqian Hou Qingfei Wang Haijiang Zhang Bo Xu Nian Yu Rui Wang David IGroves Yuanchuan Zheng Shoucheng Han Lei Gao Lin Yang | 2023 | National Science Review2023，10，3： | 2 |
| 20 | Secure key-aggregation authorized searchable encryption显示文摘Dear editor,Selective sharing of encrypted documents with other users makes the cloud st,or age system more flexible and effective[1].For safety reasons,data owners use different keys to encrypt different,documents.However,data owners need to distribute all keys to the query users for data sharing.Similarly,the query users must,submit the same number of trapdoors in order to complete search queries over the entire encrypted documents.Key-aggregation searchable encryption(KASE)cryptosystem was proposed to solve the above problem. | Haijiang WANG Xiaolei DONG Zhenfu CAO Dongmei LI Nanyuan CAO | 2019 | Science China(Information Sciences)2019，62，3： | 2 |
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