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| 1 | Estimation of carbon sinks in chemical weathering in a humid subtropical mountainous basin显示文摘The fluvial geochemistry of the mainstream and tributaries of the Zengjiang River was investigated,and the mass balance approach and deduction methods were used to estimate the uptake of atmospheric CO2 through rock chemical weathering.The results showed that the chemical runoff mainly consisted of HCO3-,Ca2+,Na+,and dissolved Si,and that silicate mineral weathering was significant,but carbonate mineral weathering was a minor source of dissolved loads in the Zengjiang River basin because of the low amount of interlayered carbonate rock strata in the catchment.The ion composition indicated that atmospheric CO2 was the primary erosive agent for rock chemical weathering in the Zengjiang River basin.The CO2 consumption fluxes caused by rock chemical weathering were(3.50-3.81) × 105 mol km-2 a-1,which is just lower than that in tropical and subtropical basalt and carbonate regions,and is much higher than that in temperate and cold-temperate regions,indicating that surficial chemical weathering processes in the humid and hot monsoon current influencing the low-middle latitude zone of the Northern Hemisphere constitutes a significant carbon sink in the global biogeochemical cycle. | TAO Zhen GAO QuanZhou WANG ZhenGang ZHANG ShengHua XIE ChenJi LIN PeiSong RUAN XiaoBing LI ShuHong MAO HaiRuo | 2011 | Chinese Science Bulletin2011，56，35： | 15 |
| 2 | Investigation of tribological performances of MCMB显示文摘Tribological properties of Meso-carbon Microbeads (MCMB) powders as a special addi-tive in pentaerythritol were investigated on an Optimal SRV tribotester at 300℃. The coarsely dis-persed lubricant system demonstrates fine lubricious effectiveness at the operation temperature.The friction coefficient dropped from 0.2 to circa 0.12 in the presence of MCMB in pentaerythritolfor the No.45 carbon steel tribomate. Raman spectroscopy analysis indicated the partial transfor-mation of MCMB into increased ordered structures that contributed to the lowering of friction. | CUI Xiaohao LI Shenghua SONG Huaihe JIN Yuansheng FU Honglan 1. National Tribology Laboratory, Tsinghua University, Beijing 100084, China 2. Institute of Carbon Fibers & Composites, Beijing University of Chemical Technology, Beijing 100029, China 3. Department of Biology, Peking University, Beijing 100871, China | 2001 | Science China Mathematics2001，44，S1： | 6 |
| 3 | Verticality Detection Algorithm Based on Local Image Sharpness Criterion显示文摘In the high precision image measurement system,the verticality error between the axis of the shooting system and the measured object can bring error of the measurement result.The high demand of the system’s vertical degree is raised by measure system due to the demands of high precision and disposable full field imaging in the micro-parts imaging measurement.The existing method of optical axis verticality detection cannot meet the demand all.In order to achieve the high-precision adjustment of the system optical axis,the algorithm of detecting verticality based on regional image definition is proposed.First,the objected standard image is divided into fixed area.Then,the object plane is moved from the downside to the upside of the focus plane,meanwhile,recording the definition function values of each standard image region at each step,and fitting out the clearest positions of the regions.Finally,according to the inter-regional relations between the locations and the height difference of the each regional clearest position,the small angle between the optical axis and the measured surface can be calculated.The experiment is based on the given image of lithography template with the scale of 10 μm as move unit,and the results show that this method effective reduced the small angle between the system optical axis and the measured body in high-precision image measuring system,the evaluation accuracy is less than 0.1°,meeting the requirements in high-precision measurement.The proposed method of detecting verticality based on regional image definition can evaluate the verticality error between the axis of the shooting system and the measured object accurately,effectively and conveniently. | ZHANG Jin WANG Zhong YE Shenghua YANG Chun LI Lin | 2012 | Chinese Journal of Mechanical Engineering2012，25，1： | 5 |
| 4 | The Strategy of Application Integration in Implementing PDM显示文摘Combining with real project three levels of application integration in implementing PDM are introduced in this paper. Based on the research on the integration ability between major PDM systems and CAD systems, this paper discusses the strategy of realizing the application integration in three levels. | Feng Shenghua Li Jianming Tong Bingshu (Precision Instrument Department Tsinghua Univ., Beijing. 100084) | 1998 | Computer Aided Drafting,Design and Manufacturing1998，8，2： | 4 |
| 5 | Transformation of plant young proembryos by electroporation显示文摘It is first reported that plant young proembryos expressed exogenous reporter genes by electroporation. Young proembryos with 8-32 cells and globular proembryos with 250-400 cells could be isolated by enzymatic maceration combined with microdissection. After electroporation with GUS or GFP genes, the proembryos were cultured for 1 -2 d in KM8p medium. At the field strength of electroporation 500-1 500 V/cm, blue reaction of GUS or green fluorescence of GFP could be observed in the proembryos. The highest transient expression frequency of young proembryos (2.2%) was obtained at the field strength of 750 V/cm, whereas the highest frequency of globular proembryos (5.9%) was obtained at the field strength of 1 250 V/cm. Taking the proportion of transformed cells in the whole cells of proembryos as efficient transformation frequency, the efficient transformation frequency of the young proembryos was 7 times that of the globular proembryos. | Shitao Li Shenghua Wang Hongyuan Yang | 2000 | Chinese Science Bulletin2000，45，13： | 4 |
| 6 | Effect of Lamb Age and in vitro Culture System of Oocytes on JIVET Technology显示文摘[Objectives] This study was conducted to investigate the effects of lamb age and in vitro culture system of oocytes on the results of juvenile in vitro embryo transfer( JIVET). [Methods]Ten Dorper × small-tailed Han lambs aged 5 to 10 weeks were induced to superovulate via i. p. injection of pregnant mare's serum gonadotropin( PMSG). The oocytes were matured in basal maturation solution or modified maturation solution,which was prepared by adding 200 μmol/L cysteine to the basal maturation solution. Then,the oocytes were fertilized in fertilization medium I containing 2% estrus sheep serum( ESS) or fertilization medium II containing 3 mg/ml bull serum albumin( BSA). Finally,the number of oocytes,oocyte maturation rate and cleavage rate of the lambs of different ages were determined. [Results]The average number of oocytes recovered per lamb was( 111. 00 ± 16. 97),( 139. 50 ± 28. 99),( 108. 50 ± 17. 68) and( 42. 00 ± 11. 31) for5-,7-,8-and 10-week-old Dorper × small-tailed Han lambs,respectively. The number of oocytes obtained from 5-,7-and 8-week-old lambs was significantly higher than that from 10-week-old lambs( P < 0. 05),but there was no significant difference among 5-,7-and 8-week-old lambs( P > 0. 05). The maturation rate of oocytes cultured in modified maturation solution was 3. 64% higher than that in basal maturation solution. The cleavage rate of oocytes in fertilization medium I was very significantly higher than that in fertilization medium II( P < 0. 01). [Conclusions] The results of JIVET can be improved by harvesting oocytes from lambs aged 5-8 weeks,adding a certain amount of cysteine into oocyte maturation solution,and a certain amount of ESS into fertilization medium. | Yangyi MAO Huidi LUO Guanwu ZHANG Zhiwu WANG Peng ZHAO Jun LI Hongyu GUO Shenghua ZHOU Huihui GUO Chunyan LI | 2019 | Agricultural Biotechnology2019，8，1： | 3 |
| 7 | An efficient spherical mapping algorithm and its application on spherical harmonics显示文摘The sphere is a natural and seamless parametric domain for closed genus-0 surfaces. We introduce an efficient hierarchical optimization approach for the computation of spherical parametrization for closed genus-0 surfaces by minimizing a nonlinear energy balancing angle and area distortions. The mapping results are bijective and lowly distorted. Our algorithm converges efficiently and is suitable to manipulate large-scale geometric models. We demonstrate and analyze the effectiveness of our mapping in spherical harmonics decomposition. | WAN ShengHua YE TengFei LI MaoQing ZHANG HongChao LI Xin | 2013 | Science China(Information Sciences)2013，56，9： | 2 |
| 8 | High-efficiency somatic reprogramming induced by intact MII oocytes显示文摘体的原子核能是进由原子转移,房间熔化和抄写因素的表示的一个 pluripotent 状态的 reprogrammed。然而,这些 reprogramming 过程是很低效的,它极大地妨碍了努力阐明内在的分子的机制。这里,我们报导把所有三 reprogramming 方法论的优点合为一个过程的新 reprogramming 策略。我们从积云房间把原子核注入了未经触动的 MII 卵母细胞。后面的激活,开发到胚胎的茎(ES ) 房间衬里的胚囊阶段,和 tetraploid (4N ) 的 80% 重建的胚胎每重建的卵母细胞以 30% 的率被产生。我们也产生了三倍性(3N ) 在进激活的卵母细胞的体的原子核的注射以后的 ES 房间。4N 和 3N ES 房间表示了 pluripotent 标记并且在 vivo 区分了进三胚胎的细菌层的房间类型。而且,所有 ES 房间产生了 histocompatible,在在免疫能力的 B6D2F1 老鼠被嫁接以后的区分的房间,显示出房间从这 reprogramming 策略导出的那 ES 可能为移植担任遗传上定制的纸巾的来源。因此,我们建立了为调查涉及体的 reprogramming 的分子的机制提供一个系统的一个简单、高度有效的 reprogramming 过程。 | Hui Yang Linyu Shi Shenghua Zhang Jiangwei Lin Jing Jiang Jinsong Li | 2010 | Cell Research2010，20，9： | 2 |
| 9 | Colloidal Structures of Daqing and Gudao Vacuum Residua and Their Formation显示文摘ColoidalStructuresofDaqingandGudaoVacuumResiduaandTheirFormationLiShenghua(LogisticalEngineeringColege,Chongqing630042)LiuChe... | Li Shenghua (Logistical Engineering College, Chongqing 630042) Liu Chenguang, Que Guohe, Liang Wenjie, Zhu Yajie (University of Petroleum, Dongying 257062) | 1997 | 石油学报(石油加工)1997，13，S1： | 2 |
| 10 | Entropy measures of type-2 intuitionistic fuzzy sets and type-2 triangular intuitionistic trapezodial fuzzy sets显示文摘In order to measure the uncertain information of a type-2 intuitionistic fuzzy set(T2IFS), an entropy measure of T2 IFS is presented by using the constructive principles. The proposed entropy measure is also proved to satisfy all of the constructive principles. Further, a novel concept of the type-2 triangular intuitionistic trapezoidal fuzzy set(T2TITr FS) is developed, and a geometric interpretation of the T2 TITr FS is given to comprehend it completely or correctly in a more intuitive way. To deal with a more general uncertain complex system, the constructive principles of an entropy measure of T2 TITr FS are therefore proposed on the basis of the axiomatic definition of the type-2 intuitionisic fuzzy entropy measure. This paper elicits a formula of type-2 triangular intuitionistic trapezoidal fuzzy entropy and verifies that it does satisfy the constructive principles. Two examples are given to show the efficiency of the proposed entropy of T2 TITr FS in describing the uncertainty of the type-2 intuitionistic fuzzy information and illustrate its application in type-2 triangular intuitionistic trapezodial fuzzy decision making problems. | Zhensong Chen Shenghua Xiong Yanlai Li Kwai-Sang Chin | 2015 | Journal of Systems Engineering and Electronics2015，26，4： | 2 |
| 11 | Holocene slip rate and paleoearthquake records of the Salt Lake segment of the Northern Zhongtiaoshan Fault, Shanxi Province显示文摘The Northern Zhongtiaoshan Fault is a major deep fault at the southern margin of the Yuncheng Basin. There have been few studies on the fault, and the historical earthquakes are few and weak. However, the intensity of activity on the fault should never be underestimated. Through interpretations of aerial images, topography measurements and excavation of trenches, this paper studied the fault distribution, the surface deformation and the activity of the normal fault south of Salt Lake near the city of Yuncheng. By tracing faults in the three trenches, it was found that there had been at least three large paleoseismic events, at 1–3.5, 3.6–4.4 and 7.4–8.8 ka BP. Employing 14 C dating, we determined the same gravel layers in the uplifted side and downthrown side. Making differential Global Positioning System measurements of the vertical difference and topographic profile, we obtained the mean slip rate of the Northern Zhongtiaoshan Fault since 24.7 ka BP(0.75±0.05 mm/a). Using the results of relevant studies, we calculated the possible vertical fault displacement of one earthquake(2.35 m) and obtained the recurrence interval of characteristic earthquakes as 2940–3360 a after dividing the displacement by the mean slip rate. | SI SuPei LI YouLi Lü ShengHua WANG YiRan | 2014 | Science China Earth Sciences2014，57，9： | 2 |
| 12 | A Hg(Ⅱ)-specific probe for imaging application in living systems and quantitative analysis in environmental/food samples显示文摘Mercury ions are highly toxic and can accumulate along food chains in water,soil,crops and animals.Effective detection of mercury ions in various media is of great significance for maintaining the ecological environment and protecting people's health.In this work,a mercury ions specific fluorescent probe was developed by a simple one-step reaction of commercial substrates of 4-chloro-7-nitro-2,1,3-benzoxadiazole and 1-(2-aminoethyl)-4-methylpiperazine.Investigation on sensing behavior showed that this probe had high sensitivity and selectivity towards mercury ions.Furthermore,this probe could be used as a tool to track the level of mercury ions in living system.In living cells,the probe with green emission emitted a bright red fluorescence when it was bound to mercury ions.In Arabidopsis thaliana,similar red emission could be detected from the root tip and stalk when A.thaliana was grown in culture medium containing mercury ions.The imaging in zebrafish showed that mercury ions were mainly concentrated in the stomach and head of zebrafish.Especially,this probe could be applied in quantitative analysis of mercury ions in tap water,green tea,sea shrimp and soil.This work provided a practical tool for the detection of mercury ions in living systems and quantitative analysis in real samples. | Guangjin Li Jiali Wang Dongyang Li Shenghua Liu Jun Yin Zhibing Lai Guangfu Yang | 2021 | Chinese Chemical Letters2021，32，4： | 2 |
| 13 | The Gravitational-wave physics Ⅱ: Progress显示文摘It has been a half-decade since the first direct detection of gravitational waves, which signifies the coming of the era of the gravitational-wave astronomy and gravitational-wave cosmology. The increasing number of the detected gravitational-wave events has revealed the promising capability of constraining various aspects of cosmology, astronomy, and gravity. Due to the limited space in this review article, we will briefly summarize the recent progress over the past five years, but with a special focus on some of our own work for the Key Project 'Physics associated with the gravitational waves' supported by the National Natural Science Foundation of China. In particular,(1) we have presented the mechanism of the gravitational-wave production during some physical processes of the early Universe, such as inflation, preheating and phase transition, and the cosmological implications of gravitational-wave measurements;(2) we have put constraints on the neutron star maximum mass according to GW170817 observations;(3) we have developed a numerical relativity algorithm based on the finite element method and a waveform model for the binary black hole coalescence along an eccentric orbit. | Ligong Bian Rong-Gen Cai Shuo Cao Zhoujian Cao He Gao Zong-Kuan Guo Kejia Lee Di Li Jing Liu Youjun Lu Shi Pi Jian-Min Wang Shao-Jiang Wang Yan Wang Tao Yang Xing-Yu Yang Shenghua Yu Xin Zhang | 2021 | Science China(Physics,Mechanics & Astronomy)2021，64，12： | 2 |
| 14 | Late Pleistocene human skull from Jingchuan, Gansu Province显示文摘Jingchuan human fossil, found in Gansu Province in 1976, was given a preliminary report in 1984, but questions remained con- cerning the age and character of the fossil. We conducted field investigation at Jingchuan in May of 2006 to examine the stratum yielding the human fossil and to obtain sediment samples for optically stimulated luminescence (OSL) dating. Three samples collected from different stratigraphic levels at the fossil locality yielded OSL dates of 15, 48 and 7.9 thousand years ago (ka), respectively. Taking stratum study, mammalian fossils and paleoliths into consideration, the OLS date of 15-48 ka appears to be more close to the true age of Jingchuan cranium. There is no distinct difference between the fossil cranium and modern craniums in terms of the traits analyzed, so the relatively modern traits of the Jingchuan cranium do not contradict with its age. Principal components analysis shows that the Jingchuan cranium may be somewhat primitive. | LI HaiJun WU XiuJie LI ShengHua HUANG WeiWen LIU Wu | 2010 | Chinese Science Bulletin2010，55，11： | 2 |
| 15 | Salmonella typhimurium strain SL7207 induces apoptosis and inhibits the growth of HepG2 hepatoma cells in vitro and in vivo显示文摘Salmonella typhimurium is probably most extensively studied tumor-targeting bacteria and SL7207 is one of its attenuated strains.SL7207 was first made for bacterial vaccine development and its therapeutic efficacy and safety for hepatoellular carcinoma has not been characterized.In this study,the inhibitory ability of SL 7207-lux on human hepatoma HepG2 cells was tested in vitro and in vivo.A bacterial luminescent gene cluster(lux CDA BE)was transfected into SL7207 to better monitor the invasion of the bacteria.The results show that SL7207-lux can rapidly enter HepG2 cells and localize in the cytoplasm.This invasion represses ell proliferation and induces apoptosis.In vivo real-time invasion studies showed that the bacteria gradually accumulate in the tumor.This enrichment was confirmed by anatomic observation at 5 days after inoculation.About 40%of tumor growth was inhibited by SL7207-lxx at 34 days post-treatment without significant loss of body weight.The area of necrosis of tumor tissue was clearly increased in the treated group.Bacterial quantification showed that the number of colony-forming units per gram of bacteria within tumor tissue was approximately 1000-fold higher than that of liver and spleen.These data suggest that attenuated S.typhimurium strain SL7207 has potential for the treatment of cancers. | Baowei Li Hongwei He Shenghua Zhang Wuli Zhao Naren Li Rongguang Shao | 2012 | Acta Pharmaceutica Sinica B2012，2，6： | 2 |
| 16 | In situ mechano-chemical reconditioning of worn ferrous surfaces显示文摘 | Jin Yuansheng Li Shenghua Zhang Zhengye | 2004 | Tribology International2004，37，： | 1 |
| 17 | On the aggregation kinetics of two particles trapped in an optical tweezers显示文摘 | Xu Shenghua Lou Liren Li Yinmei | 2005 | Colloids and Surfaces A:Physicochem Eng Aspects2005，255，1： | 1 |
| 18 | In situ mechanochemical reconditioning of worn ferrous surfaces显示文摘 | Jin Yuansheng Li Shenghua Zhang Zhengye | 2004 | Tribology2004，37，： | 1 |
| 19 | In situ mechanochemical reconditioning of worn ferrous surfaces显示文摘 | Jin Yuansheng Li Shenghua Zhang Zhengye | 2004 | Tribology International2004，37，7： | 1 |
| 20 | In situ mechanochemical reconditioning of worn ferroussurface显示文摘 | JIN Yuansheng LI Shenghua ZHANG Zhengye | 2004 | Tribology International2004，37，7： | 1 |
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