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Insect Science 2007年第6期14卷 511-518页

作者： TANIA NOBRe lina NUNeS DAVID e. BIGNeLL Laboratorio Nacional de engenharia Civil Nucleo de Estruturas de Madeira Lisboa Portugal Queen Mary University of London School of Biological and Chemical Sciences London UK Institute of Tropical Biology and Conservation Universiti Malaysia Sabah Kota Kinabalu Sabah Malaysia

The cryptic habits of subterranean termites restricts detailed analysis of their foraging patterns in situ, but the process is evidently dominated by tunnel constructions connecting the nest with woody resources discovered within the territory of each colony. In this study, tunnel formation and orientation were studied experimentally in the termite Reticulitermes grassei （Clement）, using 2-dimensional laboratory foraging arenas con- taining fine sand as the substratum. The building of exploratory tunnels over a 10-day period and the geometry of the resulting network are described. Fractal analysis showed that tunnel geometry had a fractal dimension, regardless of the total length tunnelled whether foragers encountered the food source or not. The bulk density of the sand in the arenas affected the distances tunnelled, with higher density reducing construction, but did not affect tunnel geometry. Tunnels were not discernibly orientated with respect to the positioning of the food source, even in a situation where termites had failed to find the food source at a distance of less than 50 mm, suggesting that volatiles from wood are not attractants.

关键词： foraging gallery fractal analysis Reticulitermes grassei search pattern,subterranean termites tunnel geometry

efficient enhancing scheme for TCp performance over satellite-based internet

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Journal of Systems engineering and electronics 2007年第1期18卷 177-182页

作者： Wang lina Gu Xuemai Information engineering School Beijing Univ. of Science and Technology Beijing 100083 E R. China Communication Research Center Harbin Inst. of Technology Harbin 150001 P. R. China

Satellite link characteristics drastically degrade transport control protocol （TCp） performance. An efficient performance enhancing scheme is proposed. The improvement of TCp performance over satellite-based Interuet is accomplished by protocol transition gateways at each end of a satellite link. The protocol which runs over a satellite link executes the receiver-driven flow control and acknowledgements- and timeouts-based error control strategies. The validity of this TCp performance enhancing scheme is verified by a series of simulation experiments. Results show that the proposed scheme can efficiently enhance the TCp performance over satellite-based Internet and ensure that the available bandwidth resources of the satellite link are fully utilized.

关键词： Geostationary satellites protocol transition gateway Transport control protocol

Research on Alliance Decision of Dual-Channel Remanufacturing Supply Chain Considering Bidirectional Free-Riding and Cost-Sharing

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Computer Modeling in engineering & Sciences 2024年第9期140卷 2913-2956页

作者： lina Dong Yeming Dai School of Business Qingdao UniversityQingdaoChina

This study delves into the formation dynamics of alliances within a closed-loop supply chain(CLSC)that encom-passes a manufacturer,a retailer,and an e-commerce *** leverages Stackelberg game for this exploration,contrasting the equilibrium outcomes of a non-alliance model with those of three differentiated alliance *** non-alliance model acts as a crucial benchmark,enabling the evaluation of the motivations for various supply chain entities to engage in alliance *** analysis is centered on identifying the most effective alliance strategies and establishing a coordination within these *** thoroughly investigate the consequences of diverse alliance behaviors,bidirectional free-riding and cost-sharing,and the resultant effects on the optimal decision-making among supply chain *** findings underscore several pivotal insights:(1)The behavior of alliances within the supply chain exerts variable impacts on the optimal pricing and demand of its *** comparison to the non-alliance(D)model,the manufacturer-retailer(MR)and manufacturer-e-commerce platform(Me)alliances significantly lower both offline and online resale prices for new and remanufactured *** adjustment leads to an enhanced demand for products via the MR alliance’s offline outlets and the Me alliance’s online platforms,thereby augmenting the profits for those within the ***,retailer-e-commerce platform(eR)alliance tends to increase the optimal retail price and demand across both online and offline *** specific conditions,alliance behavior can also increase the profits of non-alliance members,and the profits derived through alliance channels also exceed those from non-alliance channels.(2)The prevalence of bidirectional free-riding behavior largely remains constant across different alliance *** these models,bidirectional free-riding typically elevates the equilibrium prices in offline channel while negatively affe

关键词： Dual-channel remanufacturing supply chain alliance remanufactured products bidirectional free-riding cost-sharing

UNIFORMLY CONVeRGeNT NONCONFORMING TeTRAHeDRAL eLeMeNT FOR DARCY-STOKeS pROBLeM

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Journal of Computational Mathematics 2019年第1期37卷 130-150页

作者： lina Dong Shaochun Chen Department of Mathematics Henan Finance UniversityZhengzhou 450046China Department of Mathematics Zhengzhou UniversityZhengzhou 450001China

In this paper,we construct a tetrahedral element named DST20 for the three dimensional Darcy-Stokes problem,which reduces the degrees of velocity in [30].The finite element space Vh for velocity is H(div)-conforming,i.e.,the normal component of a function in Vh is continuous across the element boundaries,meanwhile the tangential component of a function in Vh is average continuous across the element boundaries,hence Vh is H^1- average *** prove that this element is uniformly convergent with respect to the perturbation constant s for the Darcy-Stokes *** the same time,we give a discrete de Rham complex corresponding to DST20 element.

关键词： Darcy-Stokes problem Mixed finite elements Tetrahedral element Uniformly convergent

The sexually dimorphic expression of glutamate transporters and their implication in pain after spinal cord injury

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Neural Regeneration Research 2025年第11期20卷 3317-3329页

作者： Jennifer M.Colón-Mercado Aranza I.Torrado-Tapias Iris K.Salgado Jose M.Santiago Samuel e.Ocasio Rivera Dina p.Bracho-Rincon Luis H.pagan Rivera Jorge D.Miranda Department of physiology University of Puerto RicoMedical Sciences CampusSan JuanPRUSA National Institutes of Health National Human Genome Research InstituteBethesdaMDUSA Universidad Central del Caribe School of MedicineBayamónPRUSA University of puerto Rico Carolina CampusCarolinaPRUSA Institute of Neurobiology San JuanPRUSA

In addition to the loss of motor function,~60% of patients develop pain after spinal cord *** cellular-molecular mechanisms are not well understood,but the data suggests that plasticity within the rostral,epicenter,and caudal penumbra of the injury site initiates a cellularmolecular interplay that acts as a rewiring mechanism leading to central neuropathic *** can lead to the formation of new connections triggering abnormal sensory *** excitatory glutamate transporters are responsible for the reuptake of extracellular glutamate which makes them a critical target to prevent neuronal hyperexcitability and *** previous studies showed a sexually dimorphic therapeutic window for spinal cord injury after treatment with the selective estrogen receptor modulator *** this study,we investigated the anti-allodynic effects of tamoxifen in male and female rats with spinal cord *** hypothesized that tamoxifen exerts anti-allodynic effects by increasing the expression of glutamate transporters,leading to reduced hyperexcitability of the secondary neuron or by decreasing aberrant *** and female rats received a moderate contusion to the thoracic spinal cord followed by subcutaneous slow-release treatment of tamoxifen or matrix pellets as a control(placebo).We used von Frey monofilaments and the“up-down method”to evaluate mechanical *** treatment decreased allodynia only in female rats with spinal cord injury revealing a sexdependent *** expression profile of glutamatergic transporters(excitatory amino acid transporter 1/glutamate aspartate transporter and excitatory amino acid transporter 2/glutamate transporter-1)revealed a sexual dimorphism in the rostral,epicenter,and caudal areas of the spinal cord with a pattern of expression primarily on *** rodents showed a significantly higher level of excitatory amino acid transporter-1 expression while male rodents showed increased

关键词： allodynia central neuropathic pain eAAT-1/GLAST eAAT-2/GLT-1 glutamate transporters selective estrogen receptor modulator sexual dimorphism spinal cord injury trauma

Drawing the identity of architect:Liu Jipiao as an artistic architect in the late 1920s China

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Frontiers of Architectural Research 2021年第3期10卷 584-597页

作者： lina Sun The Bartlett School of Architecture University College LondonLondon WC1E 6BTUnited Kingdom

This article investigates the responsibility of architectural drawing in developing the professional identity of modern architects in the late 1920s when Chinese architects started to emerge and assume the title of“architect.”Using architectural drawing as both its subject and its method,this research interrogates how a representative figure-Liu Jipiao employed the power of drawing to establish the identity of the modern Chinese *** paper argues that architectural drawing,in establishing the identity of the Chinese architect,faced the requirement to build an affinity between the architect and the *** entangled history of these two professions offers up Liu as the representative figure of the artistic ***’s artistic drawing fulfilled the previously mentioned requirement and earned the architects the artistic power that distinguished them from their counterparts-the *** the perspective of multiple modernities,the paper challenges the contemporary misreading of Liu Jipiao as an irrelevant individual intellectual and of his practice as a minor ***,this article invites further reflection on the modernity of Chinese architectural drawing,and shows how such drawing made more attempts to convey subjectivity rather than to transmit modern technique per se.

关键词： Identity of Chinese modern architect Architectural drawing Artistic architect Liu Jipiao Multiple modernities

The evolution of Liang Sicheng’s construction of Chinese architectural traditions in his drawings(1920se1930s)

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Frontiers of Architectural Research 2023年第2期12卷 319-336页

作者： lina Sun Beijing University of Civil engineering and Architecture Beijing 100044China

This article investigates one of the earliest attempts to systematically construct a building tradition and incorporate it into modern Chinese architectural *** efforts were put forth by Liang Sicheng(1901e1972),one of the most distinguished Chinese architects and architectural historians,in the 1920s and 1930s in China,informed by the strong collective intention to honour the Chinese *** article provides a historical and critical reflection on this collective intention that is still shared nowadays by architects and architectural *** article examines in depth the evolution of the different ways Liang used the building past and constructed the Chinese architectural traditions in different crucial stages of his architectural career in the 1920s and *** uses architectural drawing as both the research subject and the research *** of Liang’s representative drawings from these crucial professional stages are juxtaposed and investigated to reveal this evolution using the iconography and iconology method.

关键词： Liang Sicheng Chinese Architectural Traditions Architectural Drawings Juxtaposed Images Iconography and Iconology Method 1920s-1930s

Deformation at low and high stress-loading rates

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Geoscience Frontiers 2019年第1期10卷 43-54页

作者： Claudia A.Trepmann lina Seybold Department of earth and environmental Sciences Ludwig-Maximilians University

In an extensional shear zone in the Talea Ori, Crete, quartz veins occur in high-pressure low-temperature metamorphic sediments at sites of dilation along shear band boundaries, kink band boundaries and boudin necks. Bent elongate grains grown epitactically from the host rock with abundant fluid inclusion trails parallel to the vein wall indicate vein formation by crack-seal increments during dissolutionprecipitation creep of the host rock. The presence of sutured high-angle grain boundaries and subgrains shows that temperatures were sufficiently high for recovery and strain-induced grain boundary migration, i.e. higher than 300 -350℃, close to peak metamorphic conditions. The generally low amount of strain accumulated by dislocation creep in quartz of the host rock and most veins indicates low bulk stress conditions of a few tens of Mpa on a long term. The time scale of stress-loading to cause cyclic cracking and sealing is assumed to be lower than the Maxwell relaxation time of the metasediments undergoing dissolution-precipitation creep at high strain rates(10^(-10) s^(-1) to 10^(-9) s^(-1)), which is on the order of hundred years. In contrast, some veins discordant or concordant to the foliation show heterogeneous quartz microstructures with micro-shear zones, sub-basal deformation lamellae, shortwavelength undulatory extinction and recrystallized grains restricted to high strain zones. These microstructures indicate dislocation glide-controlled crystal-plastic deformation(low-temperature plasticity) at transient high stresses of a few hundred Mpa with subsequent recovery and strain-induced grain boundary migration at relaxing stresses and temperatures of at least 300 -350℃. High differential stresses in rocks at greenschist-facies conditions that relieve stress by creep on the long term, requires fast stress-loading rates, presumably by seismic activity in the overlying upper crust. The time scale for stress loading is controlled by the duration of the slip eve

关键词： High-stress crystal plasticity Crack-seal Seismic cycle Stress-loading rates Talea Ori Crete

Triterpenoid saponin biosynthesis genes and their expression patterns during the development of sea cucumber Apostichopus japonicus

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Journal of Oceanology and Limnology 2021年第6期39卷 2295-2308页

作者： Yujia YANG Xiaoni LI lina SUN Laboratory for evolution and Development Institute of Evolution and Marine BiodiversityOcean University of ChinaQingdao 266003China CAS Key Laboratory of Marine ecology and environmental Sciences Institute of OceanologyChinese Academy of SciencesQingdao 266071China

Sea cucumbers are echinoderm species with a leathery skin and an elongated *** compounds,including saponins,have been previously isolated from sea *** majority of saponins derived from this organism typically belong to the triterpene glycosides,which exhibit various biological effects(e.g.,antifungal,cytotoxic,hemolytic,and cytostatic immunomodulatory activities).In the present study,30 saponin biosynthesis enzymes,namely 2 AACTs,2 FpSs,2 HMGSs,2 OSCs,1 SS,2 Ses,and 19 UGTs,were found in the genome of sea cucumber Apostichopus *** with upstream saponin biosynthesis enzymes(i.e.,AACTs,FpSs,HMGSs,OSCs,and SSs),the downstream saponin biosynthesis enzymes(Ses and UGTs)shared lower amino acid sequence similarity with the corresponding genes in other *** was proposed that the enzyme structures comprised bothα-helices andβ-***,only a low percentage ofβ-sheets were present in FpSs,OSCs,and *** saponin biosynthesis enzymes showed dynamic expression patterns during five critical developmental stages of ***(fertilized oocytes,blastula,gastrula,doliolaria,and penractula).The present study involved elucidation of putative saponin biosynthesis pathways in sea cucumber and provides a valuable platform for further investigation of saponin biosynthesis in echinoderms.

关键词： triterpene saponin biosynthesis sea cucumber enzyme expression development

Study on the propagation velocity of internal solitary waves in the Andaman Sea using Terra/Aqua-MODIS remote sensing images

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Journal of Oceanology and Limnology 2021年第6期39卷 2195-2208页

作者： lina SUN Jie ZHANG Junmin MeNG First Institute of Oceanography Ministry of Natural ResourcesQingdao 266061China Technology Innovation Center for Ocean Telemetry Ministry of Natural ResourcesQingdao 266061China

The Andaman Sea has been a classic study region for internal solitary waves(ISWs)for several decades,and extraordinarily large ISWs are characteristic of the Andaman Sea in the Indian *** paper presents results on the estimation of the propagation velocity of ISWs in the Andaman Sea that were tracked using 195 image pairs acquired by MODIS National Aeronautics and Space Administration(NASA)Terra/Aqua satellites between January 2014 and December 2018.A total of 562 ISWs were identified during the period,and the results of the propagation velocity distribution of ISWs in the Andaman Sea are *** estimated propagation velocity of ISWs agrees well with the theoretical results derived from the Korteweg-de Vries(KdV)equation using monthly climatology stratification data and local *** ISW propagation velocity decreases as they propagate from deep to shallow water;the maximum propagation velocity of 3.27 m/s was estimated on the western side of the Nicobar Islands and minimum speed of 0.54 m/s occurred in the shallow water region of the southeastern Andaman *** results show that the ISW propagation characteristics differ in the northern,central,and southern regions of the Andaman *** the northern Andaman Sea,the velocity of ISWs propagating westward was greater than that of ISWs propagating eastward at the same water *** the central Andaman Sea,the propagation velocity of the ISWs differed over a small area at a depth of 2500 m,and the velocity of ISWs in the deep mixing layer in winter was higher than that in the shallow mixing layer in *** variations in ISW propagation velocity were analyzed in the southern Andaman Sea,and the velocity of ISWs differed greatly in shallow water and was not significantly different in deep *** depth and monthly stratification play vital roles in controlling the phase speed of ISWs in the Andaman *** study will provide a basis for the propagation and prediction of ISWs in the Anda

关键词： internal solitary waves propagation velocity remote sensing Andaman Sea