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| 1 | Secure two-party SM9 signing显示文摘Dear editor,With the rapid development of digital currencies and blockchain technologies,an increasing number of countries are planning to launch or have already launched their own central bank-issued digital currency(CBDC). | Yongheng MU Haixia XU Peili LI Tianjun MA | 2020 | Science China(Information Sciences)2020，63，8： | 8 |
| 2 | The dynamic and thermodynamic processes dominating the reduction of global land monsoon precipitation driven by anthropogenic aerosols emission显示文摘Changes in monsoon precipitation have profound social and economic impacts as more than two-thirds of the world’s population lives in monsoon regions.Observations show a significant reduction in global land monsoon precipitation during the second half of the 20 th century.Understanding the cause of this change,especially possible anthropogenic origins,is important.Here,we compare observed changes in global land monsoon precipitation during 1948–2005 with those simulated by 5 global climate models participating in the Coupled Model Inter-comparison Project-phase 5(CMIP5)under different external forcings.We show that the observed drying trend is consistent with the model simulated response to anthropogenic forcing and to anthropogenic aerosol forcing in particular.We apply the optimal fingerprinting method to quantify anthropogenic influences on precipitation and find that anthropogenic aerosols may have contributed to 102%(62–144%for the 5–95%confidence interval)of the observed decrease in global land monsoon precipitation.A moisture budget analysis indicates that the reduction in precipitation results from reduced vertical moisture advection in response to aerosol forcing.Since much of the monsoon regions,such as India and China,have been experiencing rapid developments with increasing aerosol emissions in the past decedes,our results imply a further reduction in monsoon precipitation in these regions in the future if effective mitigations to reduce aerosol emissions are not deployed.The observed decline of aerosol emission in China since 2006 helps to alleviate the reducing trend of monsoon precipiptaion. | Tianjun ZHOU Wenxia ZHANG Lixia ZHANG Xuebin ZHANG Yun QIAN Dongdong PENG Shuangmei MA Buwen DONG | 2020 | Science China Earth Sciences2020，63，7： | 7 |
| 3 | A nonlinear rheological model of backfill material for retaining roadways and the analysis of its stability显示文摘The long-term stability of backfill material is the key to retaining roadways successfully.In order to study the rheological deformation of backfill material and its long-term stability,given the visco-elastoplastic properties of this material,we introduced a softening and a hardening function for a new nonlinear rheological model with time-varying parameters.Based on this,we presented the instability condition of this model by using the principle of minimum potential energy.Combined with engineering practice,we calculated the unstable time period of backfill material.The results show that the time of instability of the backfill material relate to the initial parameters of the material,the coefficients decided by temperature and the ratio of the plastic zone of the backfill material.Based on the results of our analysis from the point of view of energy,we can quickly obtain the time of instability of this model from our graphical analysis.The time of instability of the backfill material obtained from our investigation coincides with an actual project. | Zhang Tianjun Ma Mina Wang Hongsheng Xu Hongjie | 2011 | Mining Science and Technology2011，21，4： | 5 |
| 4 | Changes of the tropical Pacific Walker circulation simulated by two versions of FGOALS model显示文摘Here we assessed the performances of IAP/LASG climate system model FGOALS-g2 and FGOAS-s2 in the simulation of the tropical Pacific Walker circulation(WC). Both models reasonably reproduce the climatological spatial distribution features of the tropical Pacific WC. We also investigated the changes of WC simulated by two versions of FGOALS model and discussed the mechanism responsible for WC changes. Observed Indo-Pacific sea level pressure(SLP) reveals a reduction of WC during 1900–2004 and 1950–2004, and an enhancement of WC during 1982–2004. During the three different time spans, the WC in FGOALS-g2 shows a weakening trend. In FGOALS-s2, tropical Pacific atmospheric circulation shows no significant change over the past century, but the WC strengthens during 1950–2004 and 1982–2004. The simulated bias of the WC change may be related to the phase of the multi-decadal mode in coupled models, which is not in sync with that in the observations. The change of WC is explained by the hydrological cycle constraints that precipitation must be balanced with the moisture transporting from the atmospheric boundary layer to the free troposphere. In FGOALS-g2, the increasing amplitude of the relative variability of precipitation(?P/P) is smaller(larger) than the relative variability of moisture(?q/q) over the tropical western(eastern) Pacific over the three time spans, and thus leads to a weakened WC. In FGOALS-s2, the convective mass exchange fluxes increase(decrease) over the tropical western(eastern) Pacific over the past 53 a(1950–2004) and the last 23 a(1982– 2004), and thus leads to a strengthened WC. The distributions of sea surface temperature(SST) trends dominate the change of WC. Over the past 55 a and 23 a, tropical Pacific SST shows an El Ni?o-like(a La Ni?a-like) trend pattern in FGOALS-g2(FGOALS-s2), which drives the weakening(strengthening) of WC. Therefore, a successful simulation of the tropical Pacific SST change pattern is necessary for a reasonable simulation of WC change in climate system models. This idea is further supported by the diagnosis of historical sea surface temperature driven AGCM-simulations. | MA ShuangMei ZHOU TianJun | 2014 | Science China Earth Sciences2014，57，9： | 4 |
| 5 | Cloning,characterization of two female-specific AFLP markers and development of PCR-based sex identification method for the half-smooth tongue sole Cynoglossus semilaevis显示文摘Two female-specific AFLP(amplified fragment length polymorphism)markers(named CseF464 and CseF136)were isolated by using one selective primer combination(E-AGC/M-CTG)from the genomic DNA of 20 females and 20 males of the half-smooth tongue sole Cynoglossus semilaevis.Both the markers were re-amplified,recovered from the agarose gels,cloned and sequenced.Bioinformatics analysis indicated that the length of the two markers were 468 bp and 134 bp,respectively,and the sequences showed no similarity to each other,as well as to the known sequences deposited in the GenBank database using BLASTn.Two pairs of SCAR(sequence characterized amplified regions)primers were designed based on the sequences of the two female-specific markers.Furthermore,PCR-based genetic sex identification method was developed in Cynoglossus semilaevis.A specific fragment was amplified in all females but not in any males by using these SCAR primers on the initial 20 female and 20 male individuals of Cynoglossus semilaevis.The feasibility of the two SCAR primer pairs was confirmed in additional 100 individuals(50 females and 50 males).This allowed for reliable,rapid molecular identification of genetic sex of the species,genetic mapping on the sex chromosomes and better understanding of the sex determination and sex differentiation in the half-smooth tongue sole. | Hongyu MA Songlin CHEN Jing LI Jin-Zhen BI Tianjun XU | 2009 | Current Zoology2009，55，4： | 4 |
| 6 | From unusual suspect to serial killer: Cyanotoxins boosted by climate change may jeopardize megafauna显示文摘The recent mass mortality event of more than 330 African elephants in Botswana has been attributed to biotoxins produced by cyanobacteria;however,scientific evidence for this is lacking.Here,by synthesizing multiple sources of data,we show that,during the past decades,the widespread hypertrophic waters in Southern Africa have entailed an extremely high risk and frequent exposure of cyanotoxins to the wildlife within this area,which functions as a hotspot of mammal species richness.The hot and dry climatic extremes have most likely acted as the primary trigger of the recent and perhaps also of prehistoric mass mortality events.As such climate extremes are projected to become more frequent in Southern Africa in the near future,there is a risk that similar tragedies may take place,rendering African megafauna species,especially those that are already endangered,in risk of extinction.Moreover,cyanotoxin poisoning amplified by climate change may have unexpected cascading effects on human societies.Seen within this perspective,the tragic mass death of the world's largest terrestrial mammal species serves as an alarming early warning signal of future environmental catastrophes in Southern Africa.We suggest that systematic,quantitative cyanotoxin risk assessments are made and precautionary actions to mitigate the risks are taken without hesitation to ensure the health and sustainability of the megafauna and human societies within the region. | Haijun Wang Chi Xu Ying Liu Erik Jeppesen Jens-Christian Svenning Jianguo Wu Wenxia Zhang Tianjun Zhou Puze Wang Shingirai Nangombe Jinge Ma Hongtao Duan Jingyun Fang Ping Xie | 2021 | The Innovation2021，2，2： | 3 |
| 7 | Tocilizumab in patients with moderate or severe COVID-19: a randomized, controlled, open-label, multicenter trial显示文摘Tocilizumab has been reported to attenuate the“cytokine storm”in COVID-19 patients.We attempted to verify the effectiveness and safety of tocilizumab therapy in COVID-19 and identify patients most likely to benefit from this treatment.We conducted a randomized,controlled,open-label multicenter trial among COVID-19 patients.The patients were randomly assigned in a 1:1 ratio to receive either tocilizumab in addition to standard care or standard care alone.The cure rate,changes of oxygen saturation and interference,and inflammation biomarkers were observed.Thirty-three patients were randomized to the tocilizumab group,and 32 patients to the control group.The cure rate in the tocilizumab group was higher than that in the control group,but the difference was not statistically significant(94.12%vs.87.10%,rate difference 95%CI−7.19%–21.23%,P=0.4133).The improvement in hypoxia for the tocilizumab group was higher from day 4 onward and statistically significant from day 12(P=0.0359).In moderate disease patients with bilateral pulmonary lesions,the hypoxia ameliorated earlier after tocilizumab treatment,and less patients(1/12,8.33%)needed an increase of inhaled oxygen concentration compared with the controls(4/6,66.67%;rate difference 95%CI−99.17%to−17.50%,P=0.0217).No severe adverse events occurred.More mild temporary adverse events were recorded in tocilizumab recipients(20/34,58.82%)than the controls(4/31,12.90%).Tocilizumab can improve hypoxia without unacceptable side effect profile and significant influences on the time virus load becomes negative.For patients with bilateral pulmonary lesions and elevated IL-6 levels,tocilizumab could be recommended to improve outcome. | Dongsheng Wang Binqing Fu Zhen Peng Dongliang Yang Mingfeng Han Min Li Yun Yang Tianjun Yang Liangye Sun Wei Li Wei Shi Xin Yao Yan Ma Fei Xu Xiaojing Wang Jun Chen Daqing Xia Yubei Sun Lin Dong Jumei Wang Xiaoyu Zhu Min Zhang Yonggang Zhou Aijun Pan Xiaowen Hu Xiaodong Mei Haiming Wei Xiaoling Xu | 2021 | Frontiers of Medicine2021，15，3： | 2 |
| 8 | Precipitation Changes in Wet and Dry Seasons over the 20th Century Simulated by Two Versions of the FGOALS Model显示文摘Seasonal precipitation changes over the globe during the 20 th century simulated by two versions of the Flexible Global Ocean–Atmosphere–Land System(FGOALS) model are assessed. The two model versions differ in terms of their AGCM component, but the remaining parts of the system are almost identical. Both models reasonably reproduce the mean-state features of the timings of the wet and dry seasons and related precipitation amounts, with pattern correlation coefficients of 0.65–0.84 with observations. Globally averaged seasonal precipitation changes are analyzed. The results show that wet seasons get wetter and the annual range(precipitation difference between wet and dry seasons) increases during the 20 th century in the two models, with positive trends covering most parts of the globe, which is consistent with observations. However,both models show a moistening dry season, which is opposite to observations. Analysis of the globally averaged moisture budget in the historical climate simulations of the two models shows little change in the horizontal moisture advection in both the wet and dry seasons. The globally averaged seasonal precipitation changes are mainly dominated by the changes in evaporation and vertical moisture advection. Evaporation and vertical moisture advection combine to make wet seasons wetter and enhance the annual range. In the dry season, the opposite change of evaporation and vertical moisture advection leads to an insignificant change in precipitation. Vertical moisture advection is the most important term that determines the changes in precipitation, wherein the thermodynamic component is dominant and the dynamic component tends to offset the effect of the thermodynamic component. | MA Shuangmei ZHOU Tianjun | 2015 | Advances in Atmospheric Sciences2015，32，6： | 2 |
| 9 | An electron backscattered diffraction study on the dynamic recrystallization behavior of a nickel–chromium alloy (800H) during hot deformation显示文摘 | Yu Cao Hongshuang Di Jingqi Zhang Jiecen Zhang Tianjun Ma R.D.K. Misra | 2013 | Materials Science & Engineering A2013，，： | 2 |
| 10 | The complete orthogonal V-system and its applications显示文摘 | Song Ruixia Ma Hui Wang Tianjun | 2007 | Communications on Pure and Applied Analysis2007，5，3： | 1 |
| 11 | Research on Properties of Cr-Ni Films Prepared on Pyrolytic Graphite by Arc Ion Plating显示文摘 | Ma Tianjun Zhao Shike Deng Feng Hu Jingjun Wu Kun | 2012 | Physics Procedia2012，，： | 1 |
| 12 | Effects of Rare Earths on Properties of Ti-Zr-Cu-Ni Base Brazing Filler Alloys显示文摘The effects of the addition of rare earths on the properties of Ti-Zr-Cu-Ni base brazing filler alloys and the mechanical microstructure and properties were studied for the brazed-joints in the vacuum brazing of TC4 by comparing synthetical properties of two kinds of filler metals.The results indicate that the filler metals added with rare earths have lower melting point, better wettability and higher mechanical properties in the brazing joints. | Ma Tianjun Kang Hui Wu Yongqin Qu Ping | 2004 | Journal of Rare Earths2004，22，z1： | 1 |
| 13 | Complete orthogonal V-system and its applications显示文摘 | Song Ruixia Ma Hui Wang Tianjun | 2007 | Communications on Pure and Applied Analysis2007，6，3： | 1 |
| 14 | Extreme Cold Events in North America and Eurasia in November-December 2022: A Potential Vorticity Gradient Perspective显示文摘From 17 November to 27 December 2022, extremely cold snowstorms frequently swept across North America and Eurasia. Diagnostic analysis reveals that these extreme cold events were closely related to the establishment of blocking circulations. Alaska Blocking(AB) and subsequent Ural Blocking(UB) episodes are linked to the phase transition of the North Atlantic Oscillation(NAO) and represent the main atmospheric regimes in the Northern Hemisphere. The downstream dispersion and propagation of Rossby wave packets from Alaska to East Asia provide a large-scale connection between AB and UB episodes. Based on the nonlinear multi-scale interaction(NMI) model, we found that the meridional potential vorticity gradient(PVy) in November and December of 2022 was anomalously weak in the mid-high latitudes from North America to Eurasia and provided a favorable background for the prolonged maintenance of UB and AB events and the generation of associated severe extreme snowstorms. However, the difference in the UB in terms of its persistence,location, and strength between November and December is related to the positive(negative) NAO in November(December). During the La Ni?a winter of 2022, the UB and AB events are related to the downward propagation of stratospheric anomalies, in addition to contributions by La Ni?a and low Arctic sea ice concentrations as they pertain to reducing PVyin mid-latitudes. | Yao YAO Wenqin ZHUO Zhaohui GONG Binhe LUO Dehai LUO Fei ZHENG Linhao ZHONG Fei HUANG Shuangmei MA Congwen ZHU Tianjun ZHOU | 2023 | Advances in Atmospheric Sciences2023，40，6： | 1 |
| 15 | A new class of complete orthogonal V-system and its applications 显示文摘 | Song Ruixia Ma Hui Wang Tianjun Qi Dongxu | 2007 | Communication on Pure and Applied Analysis2007，6，3： | 1 |
| 16 | Development of a roll-bonded UNS N08825 alloy clad pipeline steel in Baosteel显示文摘In this study,a roll-bonded UNS N088225 alloy clad pipeline steel was investigated and developed in Baosteel. Based on the requirements of a number of potential projects,we performed a series of strict evaluations including mechanical and corrosion tests. The results show the mechanical properties and corrosion resistance of this clad steel to be excellent and to meet the requirements of all the design parameters. | LIANG Xiaojun MA Tianjun FU Yanhong JIAO Sihai DING Jianhua YUAN Xiangqian WANG Baosen ZHANG Qingfeng | 2017 | Baosteel Technical Research2017，11，1： | 1 |
| 17 | Complete orthogonal V-system and its applications 显示文摘 | SONG Ruixia MA Hui WANG Tianjun | 2007 | Communications on Pure and Applied Analysis2007，6，3： | 1 |
| 18 | MicroRNA-26a regulates tumorigenic properties of EZH2 in human lung carcinoma cells显示文摘 | Xiaomin Dang Aiqun Ma Lan Yang Hao Hu Bo Zhu Dong Shang Tianjun Chen Yu Luo | 2012 | Cancer Genetics2012，，3： | 1 |
| 19 | Complete orthogonal V-system and its applications 显示文摘 | SONG Ruixia MA Hui WANG Tianjun | 2007 | Communications on Pure and Applied Analysis2007，6，3： | 1 |
| 20 | Constitutive analysis of the hot deformation behavior of Fe–23Mn–2Al–0.2C twinning induced plasticity steel in consideration of strain显示文摘 | Jingqi Zhang Hongshuang Di Xiaoyu Wang Yu Cao Jiecen Zhang Tianjun Ma | 2013 | Materials and Design2013，，： | 1 |
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