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| 1 | The generalized quasi-variational principles of non-conservative systems with two kinds of variables显示文摘According to the corresponding relations between general forces and general displacements, the balancing and geometrical equations of elasticity are multiplied by the corresponding virtual quantities, integrated with volume and area, and then added algebraically. Proceeding to the next step, by substituting constitutive relation and considering that body force and surface force are both fellow forces, the generalized quasi-variational principles with the two kinds of variables of the first type are established in non-conservative systems. Through substituting another constitutive relation, using similar methods as above, the generalized quasi-variational principles with the two kinds of variables of the second type are established in non-conservative systems. By using the generalized quasi-complementary energy principles with the two kinds of variables of the first type, a method for solving two kinds of variables (internal force and deformation) is given for non-conservative systems of the typical fellow forces. | LIANG Lifu LIU Diankui SONG Haiyan | 2005 | Science China(Physics,Mechanics & Astronomy)2005，48，5： | 12 |
| 2 | gt-C3N4 coordinated single atom as an efficient electrocatalyst for nitrogen reduction reaction显示文摘The electrochemical reduction of nitrogen to ammonia is a promising way to produce ammonia at mild condition.The design and preparation of an efficient catalyst with high ammonia selectivity is critical for the real applications.In this work,a series of transition metal (TM =Sc,Ti,V,Cr,Mn,Fe,Co,Ni,Cu,Zn,Y,Zr,Nb,Mo,Tc,Ru,Rh,Pd,Ag,and Cd) atoms supported by gt-C3N4 (TM/gt-C3N4) are investigated as electrocatalysts for the nitrogen reduction reaction (NRR) based on density functional calculations.It is found that Mo/gt-C3N4 with a limiting potential of-0.82 V is the best catalyst for standing-on adsorbed N2 cases.While for lying-on adsorbed N2 cases,V/gt-C3N4 with a limiting potential of-0.79 V is berer than other materials.It is believed that this work provides several promising candidates for the non-noble metal electrocatalysts for NRR at mild condition. | Lifu Zhang Wanghui Zhao Wenhua Zhang Jing Chen Zhenpeng Hu | 2019 | Nano Research2019，12，5： | 11 |
| 3 | A New Species of Cathayornis from the Lower Cretaceous of Inner Mongolia,China and Its Stratigraphic Significance显示文摘摘要:不完全的 postcranial 鸟的骨骼从西方的内部蒙古的 Otog 旗帜的更低的白垩纪 Jingchuan 形成被描述并且指了 Cathayornis 的新种, C。chabuensis sp。nov。这是从外面的辽宁省的 Cathayornis 的第一份报告。新发现显示 Cathayornis 与 Otogornis genghisi 共存了,并且更多详细说明了在 Otogornis 代表的这二 enantiornithine 类表演之间的比较一个更原始的类比 Cathayornis。我们的分析进一步显示 Cathayornis 是一只树木的鸟。从这个区域的 Cathayornis 的发现也证实鸟的忍受石块的 Jingchuan 形成比得上在西方的辽宁的上面的 Jehol 组的 Jiufotang 形成,并且应该被指中间迟了的早白垩纪。 | LI Jianjun LI Zhiheng ZHANG Yuguang ZHOU Zhonghe BAI Zhiqiang ZHANG Lifu BA Tuya | 2008 | Acta Geologica Sinica(English Edition)2008，82，6： | 11 |
| 4 | Non-linear and non-conservative quasi-variational principle of flexible body dynamics and application in spacecraft dynamics显示文摘The law of conservation of energy is one of the most fundamental laws of nature.According to the law of the conservation of energy,the non-linear and non-conservative quasi-variational principle of flexible body dynamics is established.The physical meaning of the quasi-stationary value conditions has been explained in non-linear and non-conservative flexible body dynamics.In the case study,the application in spacecraft dynamics is researched. | LIANG LiFu SONG HaiYan | 2013 | Science China(Physics,Mechanics & Astronomy)2013，56，11： | 10 |
| 5 | Quasi-variational principles of single flexible body dynamics and their applications显示文摘The reasons for studying single flexible body dynamics are that on one hand,it is the basis of flexible multi-body dynamics.If the theory of the single flexible body dynamics has been deeply studied,the theory of flexible multi-body dynamics will be researched easily.On the other hand,it has its unique and important applications.Quasi-variational principle of non-conservative single flexible body dynamics is established under the cross-link of particle rigid body mechanics and deformable body mechanics.Taking the interceptor as an example,this paper has explained the physical meaning of the quasi-stationary value condition of the quasi-variational principle in non-conservative single flexible body dynamics.Taking the launch of rocket as an example,it has illustrated the features of'one force for two effects'in a single flexible body dynamics.With an example of the extending flexible beam coupled with the spacecraft attitude,it has shown the transition from the single flexible body dynamics to the flexible multi-body dynamics.Finally,a number of related problems are discussed. | LIANG LiFu LIU ShiQuan ZHOU JianSheng | 2009 | Science China(Physics,Mechanics & Astronomy)2009，52，5： | 9 |
| 6 | Review on the NO removal from flue gas by oxidation methods显示文摘Due to the increasingly strict emission standards of NOx on various industries,many traditional flue gas treatment methods have been gradually improved.Except for selective catalytic reduction(SCR)and selective non-catalytic reduction(SNCR)methods to remove NOx from flue gas,theoxidation method is paying more attention to NOx removal now because of the potential to simultaneously remove multiple pollutants from flue gas.This paper summarizes the efficiency,reaction conditions,effect factors,and reaction mechanism of NO oxidation from the aspects of liquid-phase oxidation,gas-phase oxidation,plasma technology,and catalytic oxidation.The effects of free radicals and active components of catalysts on NO oxidation and the combination of various oxidation methods are discussed in detail.The advantages and disadvantages of different oxidation methods are summarized,and the suggestions for future research on NO oxidation are put forward at the end.The review on the NO removal by oxidation methods can provide new ideas for future studies on the NO removal from flue gas. | Meng Si Boxiong Shen George Adwek Lifu Xiong Lijun Liu Peng Yuan Hongpei Gao Cai Liang Qihai Guo | 2021 | Journal of Environmental Sciences2021，33，3： | 8 |
| 7 | Diversity of arbuscular mycorrhizal fungal spore communities and its relations to plants under increased temperature and precipitation in a natural grassland显示文摘Arbuscular mycorrhizal fungi(AMF)form mutualisms with most plant species,and therefore,understanding how AMF communities will respond to climate change is essential for predictions of changes in plant communities.To evaluate the impact of global climate change on AMFs and plant-AMF interactions in a natural grassland in Inner Mongolia,both artificial warming and watering treatments were assigned to experimental plots.Our results indicate that(1)warming and precipitation significantly affected the relative spore abundance of abundant sporulating AMF species;(2)the relative abundance of weak sporulating AMF species and AMF diversity decreased under experimental warming;(3)evidence was found that the composition of the AMF community in a given year might be correlated with plant community composition in the following year;and(4)grasses and forbs showing different preferences to Claroideoglomus etunicatum or Ambispora gerdemannii dominated plots.Our results imply that climate change appears to induce changes in AMF assemblages with knock-on effects on grassland plant communities.AMF communities may play a much more important role than we have thought in the responses of ecosystem to global climate changes. | SUN XiuFeng SU YuanYing ZHANG Ying WU MingYu ZHANG Zhe PEI KeQuan SUN LiFu WAN ShiQiang LIANG Yu | 2013 | Chinese Science Bulletin2013，58，33： | 6 |
| 8 | A New Species of the Genus Tylototriton(Amphibia: Urodela: Salamandridae) from the Southern Dabie Mountains in Anhui Province显示文摘A new species of the genus Tylototriton is described,from Yuexi county,Anhui province,in the south of the Dabie Mountains.It is based on morphological and molecular analysis.The new species is identified as belonging to the Tylototriton asperrimus group and shares a number of similarities with T.wenxianensis,T.broadoridgus and T.dabienicus.The diagnostic characteristics of the new species are as follows: the head length is greater than the width of the head; bony ridges on the head are prominent and necked-in; the distal digit ends,ventral digits,peripheral area of the cloaca and the tail's lower edge are orange.The result from the molecular analysis of the genus Tylototriton(including the type specimen of the new species) based on three mitochondrial genes(ND1,ND2 and CYTB) indicated that the new species was close to T.wenxianensis,T.dabienicus,and T.broadoridgus,but formed an independent clade.This result was consistent with the morphological analysis above,which supports the theory that the population distributed in the south of the Dabie Mountains,namely in from Yuexi county,Anhui province,represented a distinct species,Tylototriton anhuiensis sp.nov. | Lifu QIAN Xiaonan SUN Jiaqi LI Weibo GUO Tao PAN Xing KANG Hui WANG Jianping JIANG Jun WU Baowei ZHANG | 2017 | Asian Herpetological Research2017，18，3： | 6 |
| 9 | Diversity of root-associated fungi of Vaccinium mandarinorum along a human disturbance gradient in subtropical forests,China显示文摘Aims Ericaceous plant species can host diverse fungi in their roots,including ericoid mycorrhizal fungi(ERMF),endophytes,pathogens and some species with unknown functions.However,how this diversity of fungi responds to different human disturbances is not well understood.Methods In this study,we examined the effects of different human disturbance on fungal diversity in hair roots of Vaccinium mandarinorum,an ericaceous plant.Fungal DNA was extracted from hair roots of V.mandarinorum and high-throughput sequencing was applied to detect the diversity of root-associated fungi along a human disturbance gradient in subtropical forests in Gutianshan National Nature Reserve(GNNR)in East China.The four forest types with different disturbance regime were:old growth forest(OGF),secondary forest with once cut(SEC I),secondary forest with twice cut(SEC II)and Cunninghamia lanceolata plantation(PLF).Important Findings The results showed that:(i)diverse fungal operational units(OTUs)were detected in hair roots of V.mandarinorum in the four types of forests,covering fungal phyla of Ascomycota,Basidiomycota,Chytridiomycota,Glomeromycota and Zygomycota;(ii)Community composition of root-associated fungi of V.mandarinorum in PLF was distinct from those in the other three forest types,and two types of secondary forests had similar fungal community composition;(iii)Different fungal families respond differently to human disturbances:fungal families with significant preference to OGF were ectomycorrhizal or saprophytic fungi while fungal families with higher relative abundance in PLF were plant pathogenic or saprophytic fungi;(iv)The first principal component(PC1)of plant community had a significant effect on composition of root-associated fungal community,while edaphic parameters showed no significant effect on fungal community composition in roots of V.mandarinorum.Our results help to better understand the responses of both ericaceous plants and their fungal partners to human disturbances and forest managements. | Yanhua Zhang Jian Ni Fangping Tang Lifen Jiang Tianrong Guo Kequan Pei Lifu Sun Yu Liang | 2017 | Journal of Plant Ecology2017，10，1： | 6 |
| 10 | A New Species of the Genus Rhacophorus (Anura: Rhacophoridae) from Dabie Mountains in East China显示文摘A new species of rhacophorid of the genus Rhacophorus is described from the Dabie Mountains of west Anhui,east China.The new species,Rhacophorus zhoukaiyae sp.nov.is distinguished from its congeners by a combination of the following characters: 1) the ventral surface and front-and-rear of the femur is paler yellowish and decorated with irregular grayish blotching,and without obvious spots on the dorsum of the hand and foot webbing; 2) the outer metatarsal tubercle is small; 3) outer fingers are half-webbed and outer toes two third webbed; 4) the skin on the dorsum is smooth and without compressed warts; 5) the throat,chest and belly are pure paler yellowish; 6) the dorsal part of the fingers and toes are grayish-white; 7) the iris is golden-yellow.In addition,the phylogenetic tree showed that all the individuals of R.zhoukaiyae sp.nov.clustered into one distinct clade which suggested the validity of this species.This results could also be used to the support of species delimitation.Currently,this species is known only from mid-elevation montane evergreen forest in the Dabie Mountains of west Anhui,China. | Tao PAN Yanan ZHANG Hui WANG Jun WU Xing KANG Lifu QIAN Kai LI Yu ZHANG Jinyun CHEN Dingqi RAO Jianping JIANG Baowei ZHANG | 2017 | Asian Herpetological Research2017，18，1： | 5 |
| 11 | Evaluation of Spectral Scale Effects in Estimation of Vegetation Leaf Area Index Using Spectral Indices Methods显示文摘Spectral index methodology has been widely used in Leaf Area Index(LAI) retrieval at different spatial scales. There are differences in the spectral response of different remote sensors and thus spectral scale effect generated during the use of spectral indices to retrieve LAI. In this study, PROSPECT, leaf optical properties model and Scattering by Arbitrarily Inclined Layers(SAIL) model, were used to simulate canopy spectral reflectance with a bandwidth of 5 nm and a Gaussian spectral response function was employed to simulate the spectral data at six bandwidths ranging from 10 to 35 nm. Additionally, for bandwidths from 5 to 35 nm, the correlation between the spectral index and LAI, and the sensitivities of the spectral index to changes in LAI and bandwidth were analyzed. Finally, the reflectance data at six bandwidths ranging from 40 to 65 nm were used to verify the spectral scale effect generated during the use of the spectral index to retrieve LAI. Results indicate that Vegetation Index of the Universal Pattern Decomposition(VIUPD) had the highest accuracy during LAI retrieval. Followed by Normalized Difference Vegetation Index(NDVI), Modified Simple Ratio Indices(MSRI) and Triangle Vegetation Index(TVI), although the coefficient of determination R^2 was higher than 0.96, the retrieved LAI values were less than the actual value and thus lacked validity. Other spectral indices were significantly affected by the spectral scale effect with poor retrieval results. In this study, VIUPD, which exhibited a relatively good correlation and sensitivity to LAI, was less affected by the spectral scale effect and had a relatively good retrieval capability. This conclusion supports a purported feature independent of the sensor of this model and also confirms the great potential of VIUPD for retrieval of physicochemical parameters of vegetation using multi-source remote sensing data. | DU Huishi JIANG Hailing ZHANG Lifu MAO Dehua WANG Zongming | 2016 | Chinese Geographical Science2016，26，6： | 5 |
| 12 | Effectiveness and safety of Chinese herbal medicines for hepatitis B virus-related acute-on-chronic liver failure:study protocol for a multicenter randomized controlled trial显示文摘OBJECTIVE:To conduct a multicenter randomized controlled trial of the efficacy of standardized Chinese herbal medicines(CHMs)against acuteon-chronic liver failure(ACLF)and provide reproducible and high-level evidence for clinical practice.METHODS:This is a prospective,multicenter,centrally randomized controlled trial.Patients diagnosed with hepatitis B virus-related ACLF(n=510)will be allocated to the standard medical therapy or CHM group at a 1∶1 ratio.Two CHMs will be used on the basis of the traditional Chinese medicine syndrome:Liangxue Jiedu granules for excess syndromes and Yiqi Jiedu granules for deficiency syndromes.The primary outcome is transplant-free survival at week 12.The secondary outcomes are(a)transplant-free survival at week 24,(b)liver function as assessed using the model for end-stage liver disease score at week 12,(c)liver function as assessed using the Child-Pugh score at week 12,and(d)the incidence of complications at week 12.DISCUSSION:The effectiveness and safety of CHM formulations will be assessed following treatment for ACLF.TRIAL REGISTRATION:The trial was registered at Clinical Trials.gov(NCT03577938)on June 24,2018. | Zhang Ning Zhou Chao Wang Lifu He Tingting Wang Yao Wang Yan Bai Yunfeng Li Jun Xiao Xiaohe Gong Man | 2020 | Journal of Traditional Chinese Medicine2020，40，6： | 5 |
| 13 | Bi-prism-based single-lens three dimensional digital image correlation system with a long working distance: Methodology and application in extreme high temperature deformation test显示文摘As a novel three dimensional digital image correlation(3 D DIC) method, the bi-prism-based single lens(BSL) 3 D DIC method has been proposed and developed in recent years. Making use of a bi-prism, this method is able to perform a 3 D DIC measurement using only a single camera. Thus, the integration level of a BSL 3 D DIC system could be much higher than that of the double-camera3 D DIC system. In this paper, using a small-angle bi-prism and a camera with a longer focal length, a special BSL 3 D DIC system with a long working distance is designed for measurements in extreme environments. The principle of the system is first studied,and practical methods are then proposed for the system set-up and the determination of system parameters. Then, feasibility of the measurement system is verified by out-of-plane rigid-body translation tests. Finally, the BSL 3 D DIC system is proven to be capable of combining with a high-temperature testing instrument to perform deformation tests in a high-temperature environment of up to 1500°C. | WU LiFu YIN YuanJie ZHANG Qi FANG DaiNing ZHANG RuBing ZHU JianGuo XIE HuiMin | 2018 | Science China(Technological Sciences)2018，61，1： | 5 |
| 14 | Numerical and Experimental Study on Aerodynamic Performance of Small Axial Flow Fan with Splitter Blades显示文摘To improve the aerodynamic performance of small axial flow fan, in this paper the design of a small axial flow fan with splitter blades is studied. The RNG k-ε turbulence model and SIMPLE algorithm were applied to the steady simulation calculation of the flow field, and its result was used as the initial field of the large eddy simulation to calculate the unsteady pressure field. The FW-H noise model was adopted to predict aerodynamic noise in the six monitoring points. Fast Fourier transform algorithm was applied to process the pressure signal. Experiment of noise testing was done to further investigate the aerodynamic noise of fans. And then the results obtained from the numerical simulation and experiment were described and analyzed. The results show that the static characteristics of small axial fan with splitter blades are similar with the prototype fan, and the static characteristics are improved within a certain range of flux. The power spectral density at the six monitoring points of small axial flow fan with splitter blades have decreased to some extent. The experimental results show sound pressure level of new fan has reduced in most frequency bands by comparing with prototype fan. The research results will provide a proof for parameter optimization and noise prediction of small axial flow fans with high performance. | Zhu Lifu Jin Yingzi Li Yi Jin Yuzhen Wang Yanping Zhang Li | 2013 | Journal of Thermal Science2013，22，4： | 4 |
| 15 | Feasibility Analysis on the Integrated Application of Solar Energy, Biogas, Coal-fired Boiler and Radiant Floor Heating for Rural Residence显示文摘The feasibility of adopting a balanced energy mix mode (domestic solar energy, biogas, coal-fired boiler and radiant floor heating) was proposed. Taking a typical rural residence in Zhengzhou City for example, the study through theoretical analysis and calculation showed that such a balanced energy mix is an economic way and efficient in saving energy and reducing air pollution, and elaborated the theoretical feasibility of popularizing such a heat supply mode in rural areas. | JIN Junjie TANG Zhonghua GAO Lifu TANG Li ZHANG Xiaodong | 2013 | Journal of Landscape Research2013，5，4： | 3 |
| 16 | Insecticidal activity of residual Bt protein at the second trophic level显示文摘Measurements were taken of Bt protein expressed in the leaves of transgenic cotton (Gos- sypium hirsutum) transformed with a synthesized Bt (Bacillus thuringiensis) cry1A gene and its persistent level in larval bodies and faeces of a non-targeted insect pest, beet armyworm (Spodoptera exigua). We performed enzyme linked immunosorbent assays (ELISA) and bioassays using neonate larvae of cot- ton bollworm (Helicoverpa armigera) to detect the insecticidal activity of residual Bt protein at the sec- ond trophic level. The results showed that Bt protein content in functional leaves was different at various developmental stages and was different among plants at the same stage. Even though Bt protein concentration in the larval bodies and faeces de- creased 97.5%―99% compared to that found in cotton leaves subsequently fed to beet armyworm larvae, it still had a lethal effect on neonate cotton bollworm larvae. Therefore, Bt protein present at the second trophic level had insecticidal activity. This result is important in understanding and predicting the effect of transgenic plants on nontarget organisms. | SHI Hong ZHANG Lifu HUA Baozhen MI Xiangcheng WEI Wei ZHANG Yongjun MA Keping | 2006 | Chinese Science Bulletin2006，51，8： | 3 |
| 17 | Sauropod Teeth from the Lower Cretaceous Luohandong Formation of Ordos Basin,Inner Mongolia显示文摘The Early Cretaceous Zhidan Group in the northern Ordos Basin,Inner Mongolia,yielded a large number of tetrapods,including turtles,choristoderes,crocodyliforms,psittacosaurs,stegosaurs,theropods and birds.Well-preserved sauropod teeth have been found in the Luohandong Formation,a middle-upper unit of the Zhidan Group.The large V-shaped wear facet,low slenderness index value,labial grooves,lingual ridge and concavity on the tooth crown suggest that these teeth are from titanosauriforms.Moreover,the presence of the prominent bosses on the lingual side of the tooth crown indicates these teeth should be identified as Euhelopus teeth further.The existence of Euhelopus in Ordos Basin(Inner Mongolia),Shandong Province and western Liaoning Province shows some connections about vertebrate faunas during Early Cretaceous in these areas.Other tetrapod groups such as turtles(Sinemys,Ordosemys),choristoderes(Ikechosaurus),psittacosaurs {Psittacosaurus) and birds(Cathayornis) provide more evidences for this viewpoint. | HOU Yandong ZHANG Lifu JIANG Shan JI Shu-an | 2017 | Acta Geologica Sinica(English Edition)2017，91，3： | 3 |
| 18 | Spatial and temporal distribution of forest fire frequency and forest area burnt in Jilin Province, Northeast China显示文摘Forest fires caused by natural forces or human activities are one of the major natural risks in Northeast China.The incidence and spatial distribution of these fires vary over time and across the forested areas in Jilin Province,Northeast China.In this study,the incidence and distribution of 6519 forest fires from 1969 to 2013 in the province were investigated.The results indicated that the spatiotemporal distribution of the burnt forest area and the fire frequency varied significantly by month,year,and region.Fire occurrence displayed notable temporal patterns in the years after forest fire prevention measures were strictly implemented by the provincial government.Generally,forest fires in Jilin occurred in months when stubble and straw were burned and human activities were intense during traditional Chinese festivals.Baishan city,Jilin city,and Yanbian were defined as fire-prone regions for their high fire frequency.Yanbian had the highest frequency,and the fires tended to be large with the highest burned area per fire.Yanbian should thus be listed as the key target area by the fire management agency in Jilin Province for better fire prevention. | Qiang Liu Yanlong Shan Lifu Shu Pingyan Sun Shuai Du | 2018 | Journal of Forestry Research2018，29，5： | 3 |
| 19 | Application of Lagrange's equation to rigid-elastic coupling dynamics显示文摘A consistent focus in theoretical mechanics has been on how to apply Lagrange's equation to continuum mechanics.This paper uses the concept of a variational derivative and its laws of operation to investigate the derivation of Lagrange's equation,which is then applied to nonlinear elasto-dynamics.In accordance with the work-energy principle and the energy conservation law,kinetic and potential energies are proposed for rigid-elastic coupling dynamics,whose governing equation is established by manipulating Lagrange's equation.In addition,case studies are used to demonstrate the application of the proposed method to spacecraft dynamics. | FENG XiaoJiu LIANG LiFu SONG HaiYan | 2017 | Science China(Technological Sciences)2017，60，8： | 3 |
| 20 | An artificial chromosome for data storage显示文摘DNA digital storage provides an alternative for information storage with high density and long-term stability.Here,we report the de novo design and synthesis of an artificial chromosome that encodes two pictures and a video clip.The encoding paradigm utilizing the superposition of sparsified error correction codewords and pseudo-random sequences tolerates base insertions/deletions and is well suited to error-prone nanopore sequencing for data retrieval.The entire 254 kb sequence was 95.27%occupied by encoded data.The Transformation-Associated Recombination method was used in the construction of this chromosome from DNA fragments and necessary autonomous replication sequences.The stability was demonstrated by transmitting the data-carrying chromosome to the 100 th generation.This study demonstrates a data storage method using encoded artificial chromosomes via in vivo assembly for write-once and stable replication for multiple retrievals,similar to a compact disc,with potential in economically massive data distribution. | Weigang Chen Mingzhe Han Jianting Zhou Qi Ge Panpan Wang Xinchen Zhang Siyu Zhu Lifu Song Yingjin Yuan | 2021 | National Science Review2021，8，5： | 3 |
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