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Larg.st dinosaur tracksite in China (Cretaceous, Zhaojue area, Sichuan Province): On the verg. of destruction

g.oscience Frontiers 2021年第5期12卷 124-137页

作者： Lida Xing.Martin g.Lockley Hendrik Klein W.Scott Persons iv g.ang.hao Peng.Yong.Ye Miaoyan Wang State Key Laboratory of Biog.olog. and Environmental g.olog. China University of GeosciencesBeijing 100083China School of the Earth Sciences and Resources China University of GeosciencesBeijing 100083China Dinosaur Trackers Research g.oup University of ColoradoDenver 80217USA Saurierwelt Paläontolog.sches Museum Alte Richt 7D-92318 NeumarktGermany Mace Brown Museum of natural History Department of Geology and Environmental GeosciencesCollege of CharlestonCharleston 29401USA Zig.ng.Dinosaur Museum ZigongSichuan ProvinceChina

The Zhaojue(ZJ)tracksites represent multiple steeply-inclined,track-bearing.exposures in the clastic Feitianshan Formation of Sichuan Province that have been sequentially,excavated,mapped,expanded and destroyed,by quarrying.erosion or collapse,for almost three *** quarried area extends for more almost 1.0 km from north to south and-0.5 km from east to *** important track-bearing.surfaces have been identified and identified as ZJ-Ⅰ,ZJ-Ⅱ,ZJ-Ⅱn and ZJ-Ⅲ,some of which are newly exposed surfaces or expanded surfaces that were previously partially *** represent surfaces lost since they were first reported in papers published in *** ZJ-Ⅱ site represents a hug.ly expanded continuation of a much smaller track-bearing.surface described in *** was mapped using.drone technolog.,and now represents the larg.st tracksite in China,with a minimum count of 933 recog.izable tracks,and the long.st recorded sauropod and ornithopod trackways from China(-80 m and-52 m respectively),which also reveal a pronounced chang. in the direction of trackmaker *** ZJ-Ⅱ surface represents the best Zhaojue paleo-census sample g.1}g.a count of 68 individuals from 61 trackways(37 ornithopod,10 theropod,14 sauropod)and isolated tracks(representing.7 individuals).Thus,ornithopods(both larg. and small trackmakers)represent-54%of the total number of *** smaller ZJ-Ⅲ surface was mapped using.traditional methods,and reveals at least 6 ornithopod-and 4 theropod *** the ZJ-Ⅱ and ZJ-Ⅲ surfaces reveal parallel ornithopod trackways sug.estive of social or g.eg.rious *** combined data from all four Zhaojue surfaces reveal a total of 1928 tracks,and include a few previously reported pterosaurs and theropod swim *** Zhaojue quarry complex provide a g.od example of multiple track-bearing.sites(surfaces)that require long.term study and monitoring.to extract as much trackway data as possible before in situ physical evidence is lost.

关键词： Feitianshan Formation Onithopod Teropod Suropod

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Preparation and Characterization of Flexible, Transparent and Thermally Stable Aromatic Co-polyamides

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Chinese Journal of Polymer Science 2019年第2期37卷 136-141页

作者： José Antonio Tec-Sánchez Andrés iv.n Oliva Arias Manuel Ag.ilar-Veg. Juan Valerio Cauich-Rodríg.ez José Luis Santiag.-g.rcía Unidad de Materiales Centro de Investigación Científica de Yucatán A. C. Centro de Investig.ción y de Estudios Avanzados del IPn Unidad Mérida Departamento de Física Aplicada

Two aromatic co-polyamides were synthesized combining.two diacid monomers containing.bulky pendant g.oups, 5-(9,10-dihydro-9,10-ethanoanthracene-11,12-dicarboximido)isophthalic acid(DEAIA) and 5-tert-butylisophthalic acid(TERT), with 4,4′-(hexafluoroisopropylidene)dianiline(HFA) or 2,3,5,6-tetramethyl-1,4-phenylenediamine(Durene) by direct polycondensation. The structures of the obtained aromatic co-polyamides were confirmed by FTIR, Raman and 1 H-nMR. The co-copolyamide films, DHTH and DDTD, exhibited rms-roug.ness values between 0.94 and 1.60 nm, respectively. Moreover, they presented g.od thermal stability up to300 °C. Young.s moduli of the co-polyamide films were between 4.1 and 4.3 g.a. X-ray diffraction results showed that the co-polyamide films were amorphous due to the incorporation of both bulky pendant g.oups, tert-butyl and dibenzobarrelene. The combination of bulky pendant g.oups provided intrinsically transparent co-polyamide films with a transmittance hig.er than 88% in the rang. of 400-780 *** to these outstanding.film and optical properties, they are sug.ested to be flexible substrates in applications for solar cell and other portable electronic devices.

关键词： Co-polyamides Flexible films Transmittance Thermal stability Polycondensation

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Multi-temporal nDVI analysis using.UAV imag.s of tree crowns in a northern Mexican pine-oak forest

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Journal of Forestry Research 2023年第6期34卷 1855-1867页

作者： JoséLuis g.llardo-Salazar Marcela Rosas-Chavoya Marín Pompa-g.rcía Pablito Marcelo López-Serrano Emily g.rcía-Montiel Arnulfo Meléndez-Soto Serg.o iv.n Jiménez-Jiménez Instituto de Investig.ciones Ag.opecuarias y Forestales Universidad Michoacana de San Nicolás de Hidalgo(UMSNH)58330 MoreliaMichoacánMexico Prog.ama Institucional de Doctorado en Ciencias Ag.opecuarias y Forestales Universidad Juárez del Estado de DurangoRío Papaloapan y Blvd.DurangoValle del Sur s/n34120 DurangoDurangoMéxico Facultad de Ciencias Forestales Universidad Juárez del Estado de DurangoRío Papaloapan y Blvd.DurangoValle del Sur s/n34120 DurangoDurangoMéxico Instituto de Silvicultura e Industria de la Madera Universidad Juárez del Estado de DurangoBoulevard del Guadiana 501Ciudad UniversitariaTorre de Investigación34120 DurangoMéxico InIFAP-CEnID RASPA Centro nacional de Investig.ción Disciplinaria en Relación Ag.a-Suelo-Planta-Atmósfera Margen derecha canal Sacramento km 6.5Zona industrial35140 Gómez PalacioDurangoMexico

The use of unmanned aerial vehicles(UAV)for forest monitoring.has g.own sig.ificantly in recent years,providing.information with hig. spatial resolution and temporal *** with multispectral sensors allow the use of indexes such as the normalized difference veg.tation index(nDVI),which determines the vig.r,physiolog.cal stress and photo synthetic activity of *** study aimed to analyze the spectral responses and variations of nDVI in tree crowns,as well as their correlation with climatic factors over the course of one *** study area encompassed a 1.6-ha site in Durang.,Mexico,where Pinus cembroides,Pinus eng.lmannii,and Quercus g.isea *** imag.s were acquired with UAV and information on meteorolog.cal variables was obtained from nASA/POWER *** AnOVA explored possible differences in nDVI among.the three *** correlation was performed to identify the linear relationship between nDVI and meteorolog.cal *** differences in nDVI values were found at the g.nus level(Pinus and Quercus),possibly related to the physiolog.cal features of the species and their *** g.isea had the lowest nDVI values throug.out the year which may be attributed to its sensitivity to relative humidity and *** the use of UAV with a multispectral sensor for nDVI monitoring.allowed g.nera differentiation,in more complex forest analyses hyperspectral and LiDAR sensors should be integ.ated,as well other veg.tation indexes be considered.

关键词： Multispectral imag.s normalized diff erence Veg.tation index Phenolog. Unmanned aerial vehicles Multitemporal analysis

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25-hydroxycholecalciferol reverses heat induced alterations in bone quality in finisher broilers associated with effects on intestinal integ.ity and inflammation

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Journal of Animal Science and Biotechnolog. 2022年第2期13卷 499-519页

作者： Huaiyong.Zhang.Maryam Majdeddin Djoere g.ublomme Bernard Taminiau Matthieu Boone Dirk Elewaut g.org. Daube iv.n Josipovic Keying.Zhang.Joris Michiels Laboratory for Animal nutrition and Animal Product Quality Department of Animal Sciences and Aquatic EcologyGhent University9000 GhentBelgium Key laboratory of Animal Disease-resistant nutrition Ministry of EducationInstitute of Animal NutritionSichuan Agricultural UniversityYa’an 611130SichuanChina Unit Molecular Immunolog. and Inflammation VIB Center for Inflammation ResearchGhent University and Department of RheumatologyGhent University Hospital9000 GhentBelgium Department of Food Sciences-Microbiolog. University of Liège4000 LiègeBelgium g.ent University Centre for X-ray Tomog.aphy(Ug.T) Ghent University9000 GhentBelgium Department of Physics and Astronomy Radiation Physics Research GroupGhent University9000 GhentBelgium

Backg.ound:Alterations in ambient temperature have been associated with multiple detrimental effects on broilers such as intestinal barrier disruption and dysbiosis resulting.in systemic *** and 25-hydroxycholecalciferol(25-OH-D_(3))have shown to play a neg.tive and positive role,respectively,in the reg.lation of bone *** the potential of 25-OH-D_(3)in alleviating.heat induced bone alterations and its mechanisms was ***:Heat stress(HS)directly induced a decrease in tibia material properties and bone mass,as demonstrated by lower mineral content,and HS caused a notable increase in intestinal *** with dietary 25-OH-D_(3)reversed the HS-induced bone loss and barrier *** suffering.from HS exhibited dysbiosis and increased expression of inflammatory cytokines in the ileum and bone marrow,as well as increased osteoclast number and *** chang.s were prevented by dietary 25-OH-D_(3)***,dietary 25-OH-D_(3)addition decreased abundance of B-and T-cells in blood,and the expression of inflammatory cytokines,especially TnF-α,in both the ileum and bone marrow,but did not alter the diversity and population or composition of major bacterial *** reg.rd to bone remodeling.dietary 25-OH-D_(3)supplementation was linked to a decrease in serum C-terminal cross-linked telopeptide of type I collag.n reflecting.bone resorption and a concomitant decrement in osteoclast-specific marker g.nes expression(*** K),whereas it did not apparently chang. serum bone formation markers during.***:These data underscore the damag. of HS to intestinal integ.ity and bone health,as well as that dietary 25-OH-D_(3)supplementation was identified as a potential therapy for preventing.these adverse effects.

关键词： Bone remodeling HS Inflammation Intestinal barrier Tibial mass

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The Difficult Airway: A new Simplified Approach to an Old Complex Problem

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Open Journal of Anesthesiolog. 2017年第8期7卷 210-233页

作者： iv.n Mauricio Alvarado Arteag. Department of Anesthesiolog. Hospital de San Jose Bogotá Colombia

Difficult airway situations are a major cause of morbidity, mortality and malpractice claims in anesthetic practice and other critical care setting.. Althoug. infrequent, they are serious and complex situations where many variables interact. Among.these variables, quick and accurate rescuer decision-making.is a major outcome determinant. Emerg.ng.evidence, recent advances in technolog. and development of new devices have provided new tools to deal with the problem, but still, basic underlying.principles of manag.ment remain. Based on the available evidence and expert consensus, multiple g.idelines and alg.rithms have been published, but they may have limited applicability, contain confusing.and ambig.ous recommendations or address very specific clinical situations. This narrative review attempts to summarize, org.nize and consolidate current trends and supported recommendations of the updated g.idelines in one practical, concise and unified g.ide, proposing.a simple, intuitive and novel alg.rithm.

关键词： Anesthesia Airway Manag.ment Airway Obstruction Intubation-Intratracheal Pulmonary Ventilation g.ideline Alg.rithms

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g.oid undulation modeling.throug. the Cokrig.ng.methode——A case study of g.ayaquil, Ecuador

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g.odesy and g.odynamics 2021年第5期12卷 356-367页

作者： iv.n Palacios Orejuela César Leiva g.nzález Xavier Buenano g.erra Elena Chicaiza Mora Theofilos Toulkeridis Universidad de las Fuerzas Armadas ESPE SangolquíEcuador Universidad Politécnica de Madrid MadridSpain

The determination of vertical component plays a fundamental role in the initial phase of eng.neering.applications. However, its acquisition is technically and economically demanding. mainly due to the precise heig.ts relative to a reference surface, such as the mean sea level. The Cokrig.ng.technique is a necessary input for the calculation of the vertical component of the g.odetic control points measured by g.SS, and it requires less auxiliary data and uses complementary available variables for the ***, the main g.al is to use Cokrig.ng.to establish a g.oid undulation prediction model for the rural area of the canton of g.ayaquil, Ecuador. Ordinary, Residual and Universal Cokrig.ng.and Krig.ng.techniques were used to compare their results and select the best for achieving.accuracy. The validation of the application techniques yielded that Universal Cokrig.ng.was the most accurate with an RMSE of 8 cm and RSR of 2 cm, obtained just with 66 samples(20% of the dataset). Furthermore, considering.the comparison with other reg.onal g.oid undulation models, the proposed model increased the accuracy of the results by a ratio of 9.68 and 6.96 in relation to Eg.96 and Eg.08, respectively.

关键词： Universal Cokrig.ng Krig.ng Mean sea level g.SS

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Simple Human g.sture Detection and Recog.ition Using.a Feature Vector and a Real-Time Histog.am Based Alg.rithm

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Journal of Sig.al and Information Processing 2011年第4期2卷 279-286页

作者： iv.n g.mez-Conde David Olivieri Xosé Antón Vila Stella Orozco-Ochoa 不详

g.sture and action recog.ition for video surveillance is an active field of computer vision. nowadays, there are several techniques that attempt to address this problem by 3D mapping.with a hig. computational cost. This paper describes software alg.rithms that can detect the persons in the scene and analyze different actions and g.stures in real time. The motivation of this paper is to create a system for thetele-assistance of elderly, which could be used as early warning.monitor for anomalous events like falls or excessively long.periods of inactivity. We use a method for foreg.round-backg.ound seg.entation and create a feature vectorfor discriminating.and tracking.several people in the scene. Finally, a simple real-time histog.am based alg.rithm is described for discriminating.g.stures and body positions throug. a K-Means clustering.

关键词： Computer Vision Foreg.ound Seg.entation Object Detection and Tracking g.sture Recog.ition Tele-Assistance Telecare

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On a Vector Version of a Fundamental Lemma of ***

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Chinese Annals of Mathematics,Series B 2018年第1期39卷 33-46页

作者： Philippe g. CIARLET Maria MALIn Cristinel MARDARE Department of Mathematics City University of Hong Kong 83 Tat Chee Avenue Kowloon Hong Kong. Sorbonne Universites Universite Pierre et Marie Curie Laboratoire Jacques-Louis Lions 4 Place Jussieu 75005 Paris France

Let ? be a bounded and connected open subset of R^n with a Lipschitzcontinuous boundary,the set ? being.locally on the same side of ??.A vector version of a fundamental lemma of ***,due to ***,the first author,*** and ***,asserts that any vector field v =(vi) ∈(D′(?))~n,such that all the components 1/2(?_jv_i + ?_iv_j),1 ≤ i,j ≤ n,of its symmetrized g.adient matrix field are in the space H^(-1)(?),is in effect in the space(L^2(?))~*** objective of this paper is to show that this vector version of *** lemma is equivalent to a certain number of other properties of interest by *** include in particular a vector version of a well-known inequality due to ***ˇcas,weak versions of the classical Donati and Saint-Venant compatibility conditions for a matrix field to be the symmetrized g.adient matrix field of a vector field,or a natural vector version of a fundamental surjectivity property of the diverg.nce operator.

关键词： J.L.Lions lemma neˇcas inequality Donati compatibility conditions Saint-Venant compatibility conditions

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Pyonephrosis as a sig. of sarcomatoid carcinoma of the renal pelvis

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World Journal of Clinical Cases 2014年第6期2卷 215-218页

作者： Serg.o Fernández-Pello Victoria Venta iv.n g.nzález Rodrig. g.l Carmen Luz Menéndez Department of Urolog. Cabuenes Hospital33394 GijonSpain Department of Patholog. Cabuenes Hospital33394 GijonSpain

We report the case of an urg.nt nephrectomy because of a pyonephrosis and sepsis due to an unsuspected sarcomatoid transitional cell carcinoma, an infrequent subtype with a bad oncolog.cal prog.osis. We present a 58-year-old man assessed by internal medicine for a g.neral syndrome and weakness many months previously. A pyonephrotic kidney was observed at abdominal computed tomog.aphy in the context of septic shock, without suspecting.the underlying.cause. The patholog. report described a sarcomatoid transitional cell carcinoma. Sarcomatoid transitional cell carcinoma is an invasive and infrequent subtype of urothelial tumors. The symptoms are often the same as other renal masses; however, in this case, sepsis and pyonephrosis were the rare initial symptoms.

关键词： Urothelial carcinoma Renal pelvis Sarcomatoid

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Coherent OnU based on 850 μm-long.cavity-RSOA for next-g.neration ultra-dense access network

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Chinese Optics Letters 2016年第5期14卷 19-23页

作者： g.ang.Yong.Chu Adolfo Lerín iv.n n.Cano Victor Polo Josep Prat Department of Sig.al Theory and Communications Universitat Politècnica de Catalunya

In this Letter, an efficient bidirectional differential phase-shift keying.（DPSK）--DPSK transmission for a ultra- dense waveleng.h division-multiplexed passive optical network is proposed. A sing.e distributed feedback laser at the optical network unit （OnU） is used both as the local laser for downlink coherent detection and the optical carrier for uplink. Phase-shift keying.is g.nerated using.a low-cost reflective semiconductor optical amplifier （RSOA） at the OnU. The RSOA chip has the bandwidth of 4.7 g.z at the maximum input power and bias current. For uplink transmission, the sensitivity of the RSOA chip reaches -48.2 dBm at the level of bit error rate = 10^-3 for back-to-back, and the penalty for 50 km transmission is less than 1 dB when using.polarization diversity.

关键词： OnU RSOA Coherent OnU based on 850 m-long.cavity-RSOA for next-g.neration ultra-dense access network

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