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| 1 | Experimental study on the mechanical properties of rocks at high temperature显示文摘The mechanical properties of marble, limestone, and sandstone as well as the stress-strain curve, the varying characteristics of the peak strength, the peak strain and elastic modulus were studied by using the MTS810 Rock Mechanics Servo-controlled Testing System under the action of temperatures rang- ing from room temperature to 800℃ . Results show that (1) the peak strength and elastic modulus of marble fluctuate at the temperature from normal to 400 ℃ ; and they decrease gradually over 400℃ . (2) With the rise of the temperature, the peak strength and elastic modulus of limestone show downward trend from normal temperature to 200 ℃ ; have little change from 200 ℃ to 600 ℃; and decrease sharply over 600 ℃ . (3) The peak strength of sandstone shows a downward trend while a little change for elastic modulus at normal temperature to 200 ℃ ; and from 200 ℃ to 600 ℃ , the peak strength of sandstone in- creases while a little change for elastic modulus; the peak strength and elastic modulus decrease rap- idly at the temperature over 600 ℃ . (4) The peak strain of limestone shows little change at normal tem- perature to 600 ℃ , however, the peak strain increases rapidly over 600 ℃; and for marble and sandstone, the peak strain decreases with the rise of the temperature from normal temperature to 200℃ , the peak strain increases rapidly over 200℃. The result can provide valuable references for the rock engineering design at high temperature. | ZHANG LianYing MAO XianBiao LU AiHong | 2009 | Science China(Technological Sciences)2009，52，3： | 30 |
| 2 | Temperature effect and thermal impact in lithium-ion batteries: A review显示文摘Lithium-ion batteries, with high energy density(up to 705 Wh/L) and power density(up to 10,000 W/L), exhibit high capacity and great working performance. As rechargeable batteries, lithium-ion batteries serve as power sources in various application systems. Temperature, as a critical factor, significantly impacts on the performance of lithium-ion batteries and also limits the application of lithium-ion batteries. Moreover, different temperature conditions result in different adverse effects. Accurate measurement of temperature inside lithiumion batteries and understanding the temperature effects are important for the proper battery management. In this review, we discuss the effects of temperature to lithium-ion batteries at both low and high temperature ranges.The current approaches in monitoring the internal temperature of lithium-ion batteries via both contact and contactless processes are also discussed in the review. | Shuai Ma Modi Jiang Peng Tao Chengyi Song Jianbo Wu Jun Wang Tao Deng Wen Shang | 2018 | Progress in Natural Science:Materials International2018，28，6： | 27 |
| 3 | Temperature action and effect of concrete-filled steel tubular bridges:A review显示文摘Concrete-filled steel tube(CFST)has been widely applied in bridges due to its excellent structural and constructional performance.In CFST bridges,temperature action is not only an important but also a special load that must be considered in bridge design,construction and structural evaluation.This paper presents an overview on current researches of the temperature action and effect of CFST bridges.The historical and spatial characteristics as well as corresponding influencing factors of temperature distributions are summarized,and classifications of temperature actions are also reviewed.Results show that in-depth investigations of the contributions of temperature influencing factors can help to effectively reduce the adverse temperature effects on CFST bridges in the design stage.Due to the lack of long-term measurements and insufficient use of historical meteorological data,research on the representative value along with correlation analysis of CFST temperature actions and meteorological parameters have to be further carried out.In the meanwhile,a decomposition method of temperature distribution is proposed based on structural effects of CFST bridges in this paper.The decomposed temperature actions can be used for more accurate effect calculation than traditional temperature action classification method,especially for CFST truss bridges.At last,specific temperature action patterns still need to be investigated in some of the special problems,such as longitudinal temperature differences along the CFST arch rib and thermal debonding in the CFST interface.Further investigations are required on the accurate simulation of temperature distribution of CFST bridges considering the shading effects of components and terrain. | Jiang Liu Yongjian Liu Chenyu Zhang Qiuhong Zhao Yi Lyu Lei Jiang | 2020 | Journal of Traffic and Transportation Engineering(English Edition)2020，7，2： | 15 |
| 4 | Influence of grain size on the small fatigue crack initiation and propagation behaviors of a nickel-based superalloy at 650℃显示文摘GH4169 at 650℃ in atmosphere was investigated by using single edge notch tensile specimens. The number of main cracks and crack initiation mechanisms at the notch surface strongly depended on the grain size. The crack initiation life accounted for more percentages of the total fatigue life for the alloy with smaller grain size. The fatigue life generally increased with increasing crack initiation life. The small crack transited to long crack when its length reached 10 times the grain size. | Xumin Zhu Congyang Gong Yun-Fei Jia Runzi Wang Chengcheng Zhang Yao Fu Shan-Tung Tu Xian-Cheng Zhang | 2019 | Journal of Materials Science & Technology2019，35，8： | 9 |
| 5 | NUMERICAL STUDY ON THE EFFECTS OF SEA SURFACE TEMPERATURE ON TROPICAL CYCLONE INTENSITY-PART I:NUMERICAL EXPERIMENT OF THE TROPICAL CYCLONE INTENSITY RELATED TO SST显示文摘In the context of a model of tropical cyclone intensity based on an improved meso-scaleatmospheric model, numerical simulation is performed of the track and intensity variation oftropical cyclones (TC) arising from sea surface temperature (SST) variation over a specified searegion. Evidence suggests that the model is capable of modeling quite welt the track and intensityof TC: SST variation leads to an abrupt change in the cyclone intensity: the response of thecyclone to the abrupt SST change lasts 8—12 h. | 端义宏 秦曾灏 顾建峰 李永平 | 1998 | Acta meteorologica Sinica1998，12，2： | 9 |
| 6 | Anneal and Concentration Effect on PL Properties of Sol-Gel Derived Eu^(3+) Doped SiO_2 Glass显示文摘Eu3+ doped SiO2 nano-crystalline glasses were prepared by sol-gel method. The broad peak of XRD pattern indicates an amorphous SiO2 matrix. The affection of anneal time and anneal temperatures on photoluminescence (PL) properties of SiO2 glass under different Eu3+ doping concentration were studied systematically. It is found that the optimized anneal time is about 3 h. The excitation spectra of 2% Eu3+ doped SiO2 glass powder were measured under various anneal temperatures, and the optimized anneal temperature is observed around 700 ℃. The fluorescence-quenching effect can be observed in the emission spectra when the annealing temperature exceeds 700 ℃. The emission spectra of different molar ratio dopants were measured at an annealed temperature of 500 ℃, and the concentration-quenching phenomenon has also been observed in SiO2 glass powder when the molar ratio of Eu3+ ion exceeds 3%. The result shows that the PL intensity approaches its maximum when the molar ratio of Eu3+ ions in the sample is about 3%. In addition, a comparatively stronger emission spectrum at wavelength of 703 nm which is corresponding to the energy transition 5D0→7F4 of Eu ions is also obtained. | 王忆 凌浪生 朱慧群 丁瑞钦 | 2006 | Journal of Rare Earths2006，24，z2： | 7 |
| 7 | Tunable Curie temperature and magnetocaloric effect of FeCrMoCBYNi bulk metallic glass with different crystallized phases显示文摘The investigation on Curie temperature and magnetocaloric effect of the FeCrMoCBYNi bulk metallic glass(BMG) with different crystallized phases was carried out by XRD,TEM and PPMS. The experimental results show that the Curie temperature(T_c) of Fe_(45)Cr_(15)Mo_(14)C_(15)B_6 Y_2 Ni_3 BMG with different annealing condition reaches a highest value of 95 K. The value of magnetic entropy change △S_M(T) of Sample 3 reaches a maxima of 0.48 J/(kg·K) at Tc temperature, which result from the interaction among the precipitated phases of(Fe,Cr)_(23)(C,B)_6, Fe_3 Mo_3 C and residual amorphous phase. Based on the experiment results, it can be obtained that the Curie temperature, magnetocaloric effect can reach their optimal value at low temperature, when the content of amorphous phase and precipitated phases type run up to certain value. The magnetic properties of Sample 1 with full amorphous phase and Sample 4 with full crystalline phase will both decrease. | Yuanbin Lv Qingjun Chen Youlin Huang | 2019 | Journal of Rare Earths2019，37，4： | 6 |
| 8 | The temporal and spatial characteristics of the surface air temperature variations over the Antarctic and its surrounding area显示文摘The characteristics of the spatial distribution, temporal variations trend and oscillation for the surface air temperature variations during 1957-1993 in the Antarctic and its surrounding area were analyzed. The results show that the short-time climate change in the Antarctic is complex both temporally and spatially. The Antarctic is by no means the strongest responding region to the global greenhouse effect. There is a distinguished difference in the trends of the temperature changes for the Antarctic and global mean, which could not be explained simply by the global greenhouse effect. | 陆龙骅 卞林根 贾朋群 | 1997 | Science China Earth Sciences1997，40，4： | 5 |
| 9 | Numerical Simulation of Wind and Temperature Fields over Beijing Area in Summer显示文摘The non-hydrostatic mesoscale model MM5V3 is used to simulate the wind and temperature fields of the atmospheric boundary layer over Beijing area in summer with the mesh resolution of 1 km. The simulation results show that the numerical model can successfully simulate the urban heat island effect and the wind and temperature fields which are affected by the complicated topography and urban heat island. The results show that: (1) the west area (from Haidian to Fengtai Districts) is always the high temperature center of Beijing, where the surface temperature is about 6 K higher than the other suburbs; and (2) due to the unique topography the wind of Beijing area during the daytime is southern anabatic wind and at the night is northern katabatic wind. The results comparing well with the data from surface observation stations validate the accuracy of the simulation. | 胡小明 刘树华 王迎春 李矩 | 2005 | Acta meteorologica Sinica2005，19，1： | 5 |
| 10 | Seasonal dependency of controlling factors on the phytoplankton production in Taihu Lake, China显示文摘In this study, 44 profiles of gross primary productivity(GPP) and sunlight, along with water temperature, Chlorophyll-a(Chla) and nutrients, were observed in Meiliang Bay of Taihu Lake, China, in the spring, summer, and fall seasons. Effects of water temperature, light,and nutrient concentration were examined in relation to the GPP-unit-Chla(GPP of algae per Chla). The results showed that the optimum temperature for the GPP of phytoplankton was 27.9°C, the optimal PNA-unit-Chla(photon number absorbed by phytoplankton per Chla) was 0.25(mol), and the HSCN-unit-Chla and HSCP-unit-Chla(half-saturation constants of nitrogen and phosphorus of algae per Chla) were 0.005(mg/L) and 0.0004(mg/L), respectively. The seasonal dependency of the effect of different factors on the GPP was analyzed. Compared with temperature and nutrients, light was found to be the most important factor affecting the GPP during the three seasons. The effect of temperature and nutrients on the GPP of phytoplankton has obvious seasonal change. In spring, temperature was the secondary factor affecting the GPP of phytoplankton, and the effect of nutrients may be negligible in the eutrophic lake on account of temperature limit, which showed that the GPP of algae was only affected by the physical process. In summer and fall, temperature didn't affect the GPP of algae, and the presence of nutrients was the secondary factor affecting the GPP of phytoplankton. From summer to fall, effect of phosphorus was weakened and effect of nitrogen was enhanced. | Qiaohua Zhao Jing Wang Jianjian Wang Julian X.L.Wang | 2019 | Journal of Environmental Sciences2019，31，2： | 4 |
| 11 | FACTORS AFFECTING SOIL RESPIRATION IN REFERENCE WITH TEMPERATURE'S ROLE IN THE GLOBAL SCALE显示文摘I.INTRODUCTIONSoilrespirationisCO2evolutionprocessfromsoiltoatmosphere.Itismainlyproducedbyoxidizingorganicmaterbymicroorgan... | 方精云 刘绍辉 赵坤 | 1998 | Chinese Geographical Science1998，8，3： | 4 |
| 12 | P-wave velocities of alkaline olivine basalt at high pressure and temperature and its controlling factors显示文摘SEISMIC wave inversion is one of the most important means for us to recognize the compositionand structure of the Earth’s interior.Although the experimental techniques of elastic wave ve-locity measurement at in situ high pressure and temperature develop very fast in recent | Song, MS Xie, HS Zhang, YM Hou, W Xu, J Xu, YS | 1997 | Chinese Science Bulletin1997，42，9： | 3 |
| 13 | Contact mode thermal sensors for ultrahigh-temperature region of 2000-3500 K显示文摘In this article,we reviewed several existing techniques that were capable of detecting local temperatures in the range of 2000-3500 K in a contact manner.These techniques included several non-standard thermocouples,Seger cones and ultrasonic meters.In particular,ultrasonic meters made of tungsten(W)wires were proven to be working well in nuclear plant for detecting the central temperature of reaction zone.We also presented two alternative approaches.One of them was a kind of singlemetal-based thermal sensor made from W,Mo and Ta wires,which utilized the size effect of Seebeck coefficient and theoretically applicable in contact mode measurement up to 3500 K.The other was a kind of detectors with micro-/nano-patterns,which utilized the size effect of surface melting point of bulky materials.This work should shed light on measurement approaches for ultrahigh temperatures in a variety of practical applications. | Sheng-Yong Xu Zhen-Hai Wang Li-Jiang Gui | 2019 | Rare Metals2019，38，8： | 3 |
| 14 | Impact of the Zhalong Wetland on Neighboring Land Surface Temperature Based on Remote Sensing and GIS显示文摘Wetlands play a key role in regulating local climate as well as reducing impacts caused by climate change. Rapid observations of the land surface temperature(LST) are, therefore, valuable for studying the dynamics of wetland systems. With the development of thermal remote sensing technology, LST retrieval with satellite images is a practicable way to detect a wetland and its neighboring area’s thermal environment from a non-point visual angle rather than the traditional detection from a point visual angle. The mono-windows(MW) method of retrieving LST was validated. On the basis of estimated LST, we used Geographical Information System(GIS) technology to study the impact of wetland reclamation on local temperatures at a regional scale. Following that, correlations between LST and the wetland were analyzed. The results show that: 1) It is feasible to retrieve the LST from Landsat 8 OLI satellite images with MW model. The model was validated with the land surface temperature observed in four meteorological stations when the satellite scanned the study region. The satellite retrieval error was approximately 1.01°C. 2) The relationship between the spatial distribution of land surface temperatures and the Zhalong wetland was analyzed based on GIS technology. The results show that wetland has an obvious influence on LST, and that this influence decreases with increasing distance from the wetland. When the distance from the wetland was less than 500 m, its influence on LST was significant. Results also illustrated that the effect of the wetland’s different land use/land cover’s LST distribution varied with different seasons. | DU Jia SONG Kaishan YAN Baohua | 2019 | Chinese Geographical Science2019，29，5： | 3 |
| 15 | 超长斜交网格钢屋盖温度效应分析显示文摘以东营会展中心工程为背景,运用有限元程序ANSYS建立正、斜交网格超长屋盖结构模型,考虑季节温差,分析比较两种屋盖体系在温度效应上的差别,归纳斜交网格屋盖结构温度效应的特点。联系工程实际,提出斜交网格屋盖结构的设计要点及构造措施,所得结论为类似结构的深入研究和设计提供参考。 | 郑毅敏 朱伟平 阮永辉 黄斌 | 2010 | 结构工程师2010，26，5： | 3 |
| 16 | Effects of lime treatment on the microstructure and hydraulic conductivity of Héricourt clay显示文摘This study aims at evidencing the effects of lime treatment on the microstructure and hydraulic conductivity of a compacted expansive clay,with emphasis put on the effect of lime hydration and modification.For this purpose,evolutions of hydraulic conductivity were investigated for both lime-treated and untreated soil specimens over 7 d after full saturation of the specimens and their microstructures were observed at the end.Note that for the treated specimen,dry clay powder was mixed with quicklime prior to compaction in order to study the effect of lime hydration.It is observed that lime hydration and modification did not affect the intra-aggregate pores but increased the inter-aggregates pores size.This increase gave rise to an increase of hydraulic conductivity.More precisely,the hydraulic conductivity of lime-treated specimen increased progressively during the first 3 d of modification phase and stabilised during the next 4 d which correspond to a short period prior to the stabilisation phase.The microstructure observation showed that stabilisation reactions took place after 7 d.Under the effect of stabilisation,a decreasing hydraulic conductivity can be expected in longer time due to the formation of cementitious compounds. | Thanh Danh Tran Yu-Jun Cui Anh Minh Tang Martine Audiguier Roger Cojean | 2014 | Journal of Rock Mechanics and Geotechnical Engineering2014，6，5： | 3 |
| 17 | Temperature effect on the reference frequency of FDR soil moisture sensor显示文摘The FDR automatic soil moisture sensor must determine reference frequency in the air and water. Experimental studies show that the water reference frequency is influenced by water temperature. The variation of the reference frequency of the sensor is measured with the change of the water temperature,then analysis the influence of the volume water content measurement of the sensor,analysis found that the error is not more than 3% for the measurement of the volumetric water content of the temperature. | WANG Liming LYU Wenhua | 2015 | Instrumentation2015，2，3： | 2 |
| 18 | Eddy induced SST variation and heat transport in the western North Paci?c Ocean显示文摘Vigorous mesoscale eddies and significant sea surface temperature(SST)variations are found in the northern edge of the Pacific warm pool that features large SST gradient.However,the relations between SST gradient,eddies,and SST variations in this region remain unexplored.In this study,by combining multi-altimeter sea surface height(SSH),satellite microwave SST observations and a mesoscale eddy dataset,we investigated the two-dimensional structures of SSTa(SST anomalies)in two subareas,which have different eddy characteristics and can be discriminated in the intensity of background SST gradient.The eddy characteristics of this region,focusing on their concentration to 21°N,are also described.We found that eddies can result in two distinct patterns of eddy-induced SST anomalies,with two different horizontal processes respectively.One is a monopole pattern that is caused by elevation/depression of the isopycnals,and another is a dipole pattern caused by eddy's rotation and stirring of the background SST field.In addition,contributions of both parts to the total SSTa and the SSTa variations were evaluated.The intensity of surrounding SST gradient plays an important role in shaping the SSTa structure:when SST gradient is larger,the eddy-associated SSTa pattern organizes more dipole.The distinct annual cycle in two components of SSTa is associated with the seasonal modulation of the warm pool's horizontal structure. | SUN Bowen LIU Chuanyu WANG Fan | 2020 | Journal of Oceanology and Limnology2020，38，1： | 2 |
| 19 | Giant modulation of magnetism in(Ga,Mn)As ultrathin films via electric field显示文摘Taking the advantages of semiconducting properties and carrier-mediated ferromagnetism in(Ga,Mn)As,a giant modulation of magnetism via electric field in(Ga,Mn)As ultrathin film has been demonstrated.Specifically,huge interfacial electric field is obtained by using ionic liquid as the gate dielectric.Both magnetization and transport measurements are employed to characterize the samples,while the transport data are used to analyze the electric filed effect on magnetism.Complete demagnetization of(Ga,Mn)As film is then realized by thinning its thickness down to ~2 nm,during which the degradation of ferromagnetism of(Ga,Mn)As ultrathin film induced by quantum confinement effect is suppressed by inserting a heavily-doped p-type GaAs buffer layer.The variation of the Curie temperature is more than 100 K,which is nearly 5-times larger than previous results.Our results provide a new pathway on the efficient electrical control of magnetism. | Hailong Wang Jialin Ma Jianhua Zhao | 2019 | Journal of Semiconductors2019，40，9： | 2 |
| 20 | A PRELIMINARY SIMULATION OF EFFECTS OF CLIMATE CHANGE ON RICE IN THE MIDDLE AND LOWER REACHES OF CI-IANGJIANG RIVER AND WINTER WHEAT PRODUCTION ON THE HUANG-HUAI-HAI PLAIN显示文摘In this paper,based on the analysis of the variation of effective accumulated temperature and precipita-tion in the last 100 years,together with the potential impacts of greenhouse effects on the climate in Chinasimulated with the current major climatic models(GFDL,GISS,NCAR,OSU and UKMO),the impacts ofclimate change on rice in the middle and lower reaches of Changjiang River and winter wheat production on theHuang-Huai-Hai Plain~* are simulated with the available weather-yield statistic models on the assumption that te-mperature variation ranges 1—4℃ and precipitation variation ranges ±10—20%.The result is that under thecurrent planting systems and agrotechniques,the impact of climate change on wheat production is more signifi-cant than that on rice;the climatic conditions of agricultural production in the north of China will become morefavourable while those in the south of the middle and lower reaches of Changjiang River remain the same;butthose in the southern part of North China and the basins between Changjiang River and Haihe River are ratherunstable.In general,it is difficult to reach the conclusion that advantages or disadvantages dominate in suchclimate changes because of uncertainties. | 王馥棠 王石立 李玉祥 钟美娜 | 1991 | Acta meteorologica Sinica1991，5，5： | 1 |
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