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A STUdY OF STRUCTURE ANd PROPERTY CHANGES OF BIOdEGRAdABLE POLYGLYCOLIdE ANd POLY(GLYCOLIdE-co-LACTIdE)FIBERS dURING PROCESSING ANd IN VITRO dEGRAdATION

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Chinese Journal of Polymer Science 2003年第2期21卷 159-167页

作者： Bruce X.Fu Benjamin S.Hsiao Gavin Chen jack Zhou Susan Lin Jenny Yuan Ilya Koyfman dennis d Jamiolkowski Edward dormier department of Chemistry State University of New York at Stony Brook Stony BrookNY 11794-3400 USA Ethicon Worldwide A Johnson & Johnson Company P. O. Box 151 Somerville. New Jersey 08876-0151 USA

Structure and properties of bioabsorbable polyglycolide (PGA) and poly(glycolide-co-lactide) (PGA-co-PLA)fibers were investigated during several industrial processing stages and in vitro degradation by means of wide-angle X-raydiffraction (WAXd), dynamic mechanical analysis (dMA) and mechanical property tests. In the orientation stage, the PGAfibers were found to have higher degrees of crystallinity than corresponding PGA-co-PLA samples produced under similarconditions. In the hot-stretching and post-annealing stages, after fibers were braided, PGA samples were found to gain morecrystallinity and higher T_g than PGA-co-PLA samples. The higher crystallinity in PGA fibers resulted in a slower rate ofdegradation. dMA results showed that a great deal of internal stress that was built during orientation and hot-stretchingstages was released in the post-annealing stage for a1l PGA and PGA-co-PLA samples. during earlier stages of in vitrodegradation, both PGA and PGA-co-PLA samples exhibited the typical cleavage-induced crystallization mechanism. Theheat shrinkage in the glass transition area was found to disappear after 6-8 days of degradation for all PGA and PGA-co-PLAsamples, indicating the amorphous portions of the polymers lost orientation after a short period in the buffer solution, mostlikely due to relaxation of the cleaved chains.

关键词： Polyglycolide Poly(glycolide-co-lactide) Bioabsorbable Fiber processing in vitro degradation

Optimizing dietary lipid use to improve essential fatty acid status and reproductive performance of the modern lactating sow:a review

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Journal of Animal Science and Biotechnology 2016年第3期7卷 272-289页

作者： david S.Rosero R.dean Boyd jack Odle Eric van Heugten The Hanor Company FranklinKY 42134USA department of Animal Science North Carolina State UniversityRaleighNC 27695USA

dietary lipid supplementation benefits the prolific and high-producing modern lactating sow. A comprehensive review of recent studies showed that lipid supplementation increases average daily energy intake, which is partitioned for lactation as indicated by greater milk fat output and improved litter growth rate. Recent compelling findings showed that addition of particular lipids during lactation improved the subsequent reproductive outcome of sows. Such benefits were related to the level of dietary essential fatty acids（EFA, linoleic acid, C18：2n-6; and α-linolenic acid, C18：3n-3） during lactation. Lactation diets without supplemental EFA resulted in a pronounced negative balance（intake minus milk output） of linoleic（-25.49 g/d） and α-linolenic acid（-2.75 g/d）; which compromised sow fertility（farrowing rate 〈 75 % and culling rates 〉 25 % of weaned sows）. This phenomenon seems to be increasingly important with advancing sow age because of a progressive reduction of body EFA pool over successive lactations. The net effect of supplemental EFA during lactation was to create a positive EFA balance, which improved the subsequent reproduction of sows. Adequate linoleic acid intake improved the proportion of sows that farrowed in the subsequent cycle（Farrowing rate（%） = [（-1.5 × 10^-3× linoleic acid intake（g/d）^2）＋（0.53 × linoleic acid intake（g/d））＋（45.2）]; quadratic P = 0.002, R^2= 0.997, RMSE = 0.031）. In addition, increasing linoleic acid intake increased the number of pigs born in the subsequent cycle（total pigs born（n） = [（9.4 × 10^-5× linoleic acid intake（g/d）^2）＋（0.04 × linoleic acid intake（g/d））＋（10.94）]; quadratic P = 0.002, R^2= 0.997, RMSE = 0.031）. Supplemental α-linolenic acid resulted in a rapid return to estrus（sows bred： sows weaned = 94.2 %; wean-to-estrus interval = 4.0 d） and achieved a high retention of pregnancy（sows pregnant： sows bred = 98 %）. Collectively, we conclude that a minimum dietary intake of10 g/d of α-linolenic acid, simultaneous wit

关键词： Essential fatty acids Lactating sow Subsequent reproduction Supplemental lipids

A taxonomic reassessment of Tubeufiales based on multi-locus phylogeny and morphology

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Fungal diversity 2018年第5期92卷 131-344页

作者： Yong-Zhong Lu Jian-Kui(jack)Liu Kevin d.Hyde Rajesh Jeewon Ji-Chuan Kang Cui Fan Saranyaphat Boonmee d.Jayarama Bhat Zong-Long Luo Chuan-Gen Lin Prapassorn damrongkool Eungwanichayapant Engineering and Research Center for Southwest Bio-Pharmaceutical Resources of National Education Ministry of China Guizhou UniversityGuiyang 550025GuizhouPeople’s Republic of China Center of Excellence in Fungal Research Mae Fah Luang UniversityChiang Rai 57100Thailand School of Pharmaceutical Engineering Guizhou Institute of TechnologyGuiyang 550003GuizhouPeople’s Republic of China School of Science Mae Fah Luang UniversityChiang Rai 57100Thailand Guizhou Key Laboratory of Agricultural Biotechnology Guizhou Academy of Agricultural SciencesGuiyang 550006GuizhouPeople’s Republic of China department of Health Sciences Faculty of ScienceUniversity of MauritiusReduit 80837Mauritius 128/1-J Azad Housing SocietyCurcaGoa VelhaIndia College of Agriculture&Biological Sciences Dali UniversityDaliYunnan 671003China

This study deals with an extensive taxonomic reevaluation focusing on phylogenetic relationships and morphological characterization of Tubeufiales,especially those helicosporous hyphomycetes which are difficult to *** on evidence from dNA sequence data and morphology,we introduce 13 new genera in the family Tubeufiaceae,***,dematiohelicoma,dematiohelicomyces,dematiohelicosporum,dematiotubeufia,Helicoarctatus,Heli-cohyalinum,Helicotruncatum,Neochlamydotubeufia,Neohelicoma,Pleurohelicosporium,Pseudohelicomyces and Pseu-dohelicoon;transfer Chaetosphaerulina from dothideomycetes genera incertae sedis,and Artocarpomyces and Helicodochium from Ascomycetes genera incertae sedis into Tubeufiaceae;introduce 52 new species,*** fusiforme,***,Chlamydotubeufia cylindrica,dematiohelicosporum guttulatum,Helicoarctatus aquaticus,Helicodochium aquaticum,Helicohyalinum infundibulum,Helicoma aquaticum,***,***,***,***,***,***,***,***,***,Helicomyces hyalosporus,Helicosporium aquaticum,***,***,***,***,Neochlamydo-tubeufia fusiformis,Neohelicomyces hyalosporus,Neohelicosporium acrogenisporum,***,***,***,***,***,***,Pleurohelicosporium parvisporum,Pseudohelicomyces aquaticus,***,Tubeufia abundata,***,***,***,***,***,***,***,***,***,***,***,***,***,***,*** and ***;provide 43 new combinations,*** guianensis,Acanthotubeufia filiforme,Berkleasmium aquatica,***,***,***,dematiohelicoma perelegans,***,dematiohelicomyces helicosporus,dematiotubeufia chiangraiensis,Helicohyalinum aquaticum,Helicoma eli-norae,***,***,***,***

关键词： 118 new taxa Freshwater fungi Helicosporous hyphomycetes Phylogenetics Taxonomy Woody substrates

Biodegradable elastomeric circuit boards from citric acid-based polyesters

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npj Flexible Electronics 2023年第1期7卷 307-320页

作者： Brendan L.Turner jack Twiddy Michael d.Wilkins Srivatsan Ramesh Katie M.Kilgour Eleo domingos Olivia Nasrallah Stefano Menegatti Michael A.daniele Joint department of Biomedical Engineering North Carolina State University and University of North CarolinaChapel Hill911 Oval Dr.RaleighNC 27695USA department of Electrical&Computer Engineering North Carolina State University890 Oval Dr.RaleighNC 27695USA department of Chemical and Biomolecular Engineering North Carolina State University911 Partners WayRaleighNC 27695USA Biomanufacturing Training and Education Center(BTEC) North Carolina State University850 Oval DrRaleighNC 27606USA

Recyclable and biodegradable microelectronics,i.e.,“green”electronics,are emerging as a viable solution to the global challenge of electronic ***,flexible circuit boards represent a prime target for materials development and increasing the utility of green electronics in biomedical *** board substrates and packaging are good dielectrics,mechanically and thermally robust,and are compatible with microfabrication ***(octamethylene maleate(anhydride)citrate)(POMaC)–a citric acid-based elastomer with tunable degradation and mechanical properties–presents a promising alternative for circuit board substrates and ***,we report the characterization of Elastomeric Circuit Boards(ECBs).Synthesis and processing conditions were optimized to achieve desired degradation and mechanical properties for production of stretchable *** traces were characterized and exhibited sheet resistance of 0.599Ωcm^(−2),crosstalk distance ofd exhibited stable 0%strain resistances after 1000 strain cycles to 20%.Fabrication of single layer and encapsulated ECBs was demonstrated.

关键词： polyester resistance strain

development of BaTiO3 Based X7R Wafers for Single-Layer Capacitors

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Development of BaTiO3 Based X7R Wafers for Single-Layer Capa...

Fungicolous fungi:terminology,diversity,distribution,evolution,and species checklist

The 3～〔rd〕International Conference on High-Performance Ceramics(CICC-3)（1）

作者： Vladimir d. Krstic jack Ng Centre for Manufacturing of Advanced Ceramics and Nanomaterials Nicol HallQueens UniversityKingston OntarioCanada K7L 3N6 REMEC Nanowave 425 Horner AvenueUnit# 1Etobicoke OntarioCanada M8W 4W3

＜正＞ Research on the development and characterization of X7R BaTiO3 dielectric wafers for high frequency single-layer capacitors has been carried out. Commercial BaTiO3 powders were processed and optimized in dielectric constant （εr ）, dissipation factor （dF） and temperature coefficient of capacitance （TCC）. The results indicate a strong effect of sintering temperature on dielectric properties as well as on mechanical properties of the BaTiO3. It has been shown that the highest dielectric constant is achieved at high sintering temperatures （＞1400℃） and lowest TCC at lower sintering temperatures （＜1300℃）. By optimizing fabrication process e.g. dry pressing, cold isostatic pressing, sintering, and machining such as grinding and lapping, BaTiO3 wafers of dielectric constant from 3400 to 3600, with a diameter approximately 50mm and thickness 150μm, have been manufactured successfully. The fabricated thin wafers exhibit the X7R capacitor characteristics of the dissipation factor （＜3%） and temperature coefficient of capacitance （＜±5%） in the temperature range of-55℃to 125℃.

关键词： Barium titanate X7R wafer Single-layer capacitor.

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Fungal diversity 2019年第2期95卷 337-430页

作者： Jing-Zu Sun Xing-Zhong Liu Eric H.C.McKenzie Rajesh Jeewon Jian-Kui(jack)Liu Xiao-Ling Zhang Qi Zhao Kevin d.Hyde State Key Laboratory of Mycology Institute of MicrobiologyChinese Academy of SciencesNo.3 Park 1Beichen West RoadChaoyang DistrictBeijing 100101People’s Republic of China Center of Excellence in Fungal Research Mae Fah Luang UniversityChiang Rai 57100Thailand Manaaki Whenua Landcare Research Private Bag 92170AucklandNew Zealand department of Health Sciences Faculty of ScienceUniversity of MauritiusReduitMauritius Center for Bioinformatics School of Life Science and TechnologyUniversity of Electronic Science and Technology of ChinaChengdu 611731People’s Republic of China Key Laboratory for Plant diversity and Biogeography of East Asia Kunming Institute of BotanyChinese Academy of ScienceKunming 650201People’s Republic of China department of Microbiology College of Life ScienceNankai UniversityJinnan DistrictTianjin 300350People’s Republic of China

Fungicolous fungi are a very large,diverse,ecological and trophic group of organisms that are associated with other *** association occurs with species of different lineages across the fungal *** are recognized as symbionts,mycoparasites,saprotrophs,and even *** fungi have been found,fungicolous taxa have also been *** environments favour the development of highly adapted and coevolved fungicolous species,which could have led to host-specificity *** a primary consumer,fungicolous fungi decrease the turnaround time of certain nutrients in food webs,due to their special often-rapid life *** may also significantly affect population dynamics and population sizes of their hosts in aquatic or terrestrial *** mycoparasites of pathogenic fungi,some fungicolous fungi have been explored as biocontrol *** may also cause serious diseases of cultivated edible and medicinal mushrooms,decreasing both yield and *** fungi could be used as model organisms that may help determine better understanding of species interactions,fungal evolution and divergence,and fungicolous *** review summarizes our current understanding of fungicolous fungi,with a particular focus on the terminology,diversity,global distribution,and interaction with their *** also provide a checklist including 1552 fungicolous fungal taxa so far recorded following the updated classification *** is a need for further investigations on this ecologically important group of fungi to better understand their biology,ecological aspects,origin and divergence,hostspecificity and application in *** identification of these fungi as pathogens and their significance in quarantine purposes on the mushroom industry need further evaluations so that efficient control measures can be developed for better disease management purposes.

关键词： Biocontrol Host-specificity Mushroom diseases Mycoparasites Species diversity

Elucidation of the life cycle of the endophytic genus Muscodor and its transfer to Induratia in Induratiaceae fam. nov., based on a polyphasic taxonomic approach

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Fungal diversity 2020年第2期101卷 177-210页

作者： Milan C.Samarakoon Benjarong Thongbai Kevin d.Hyde Mark Brönstrup Ulrike Beutling Christopher Lambert Andrew N.Miller Jian‑Kui(jack)Liu Itthayakorn Promputtha Marc Stadler Key Laboratory for Plant diversity and Biogeography of East Asia Kunming Institute of BotanyChinese Academy of Sciences132Lanhei RoadKunming 650201People’s Republic of China Center of Excellence in Fungal Research Mae Fah Luang UniversityChiang Rai 57100Thailand School of Life Science and Technology University of Electronic Science and Technology of ChinaChengdu 611731People’s Republic of China Guizhou Key Laboratory of Agricultural Biotechnology Guizhou Academy of Agricultural SciencesGuiyang 550006People’s Republic of China department of Microbial drugs Helmholtz-Zentrum für Infektionsforschung GmbHInhoffenstrasse 738124 BrunswickGermany department of Biology Faculty of ScienceChiang Mai UniversityChiang Mai 50200Thailand department of Chemical Biology Helmholtz-Zentrum für Infektionsforschung GmbHInhoffenstrasse 738124 BrunswickGermany Illinois Natural History Survey University of Illinois1816 South Oak StreetChampaignIL 61820‑6970USA Research Center in Bioresources for Agriculture Industry and MedicineChiang Mai UniversityChiang Mai 50200Thailand

Molecular phylogenetic studies of cultures derived from some specimens of plant-inhabiting Sordariomycetes using ITS,LSU,rpb2 and tub2 dNA sequence data revealed close affinities to strains of *** taxonomy of this biotechnologi-cally important genus,which exclusively consists of endophytes with sterile mycelia that produce antibiotic volatile secondary metabolites,was based on a rather tentative taxonomic *** though it was accommodated in Xylariaceae,its phylo-genetic position had so far remained *** phylogeny shows that Muscodor species have affinities to the xylarialean genera Emarcea and Induratia,which is corroborated by the fact that their sexual states produce characteristic *** data allow for the integration of Muscodor in Induratia,*** genus that was historically described *** multi-locus phylogenetic tree clearly revealed that a clade comprising Emarcea and Induratia forms a monophylum separate from representatives of Xylariaceae,for which we propose the new family *** time estimations revealed that Induratiaceae has been diverged from the Xylariaceae+Clypeosphaeriaceae clade at 93(69-119)million years ago(Mya)with the crown age of 61(39-85)Mya during the Cretaceous *** ascospore-derived cultures were studied for the production of volatile metabolites,using both,dual cultures for assessment of antimicrobial effects and extensive analyses using gas chromatography coupled with mass spectrometry(GC-MS).The antimicrobial effects observed were significant,but not as strong as in the case of the previous reports on Muscodor *** GC-MS results give rise to some doubt on the validity of the previous identification of certain *** peaks in the GC-MS chromatograms could not be safely identified by database searches and may represent new natural *** isolation of these compounds by preparative chromatography and their subsequent characterisation by nuclear magnetic re

关键词： 9 new taxa 16 new combinations Biocontrol Endophytes Secondary metabolites Sordariomycetes

deep Learning for Real-Time Crime Forecasting and Its Ternarization

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Chinese Annals of Mathematics,Series B 2019年第6期40卷 949-966页

作者： Bao WANG Penghang YIN Andrea Louise BERTOZZI P.Jeffrey BRANTINGHAM Stanley Joel OSHER jack XIN department of Mathematics University of CaliforniaLos AngelesWestwoodLos AngelesCA 90095USA department of Anthropology University of CaliforniaLos AngelesWestwoodLos AngelesCA 90095USA department of Mathematics University of CaliforniaIrvineIrvineCA 92697USA

Real-time crime forecasting is ***,accurate prediction of when and where the next crime will happen is *** known physical model provides a reasonable approximation to such a complex *** crime data are sparse in both space and time and the signal of interests is *** this work,the authors first present a proper representation of crime *** authors then adapt the spatial temporal residual network on the well represented data to predict the distribution of crime in Los Angeles at the scale of hours in neighborhood-sized *** experiments as well as comparisons with several existing approaches to prediction demonstrate the superiority of the proposed model in terms of ***,the authors present a ternarization technique to address the resource consumption issue for its deployment in real *** work is an extension of our short conference proceeding paper[Wang,B.,Zhang,d.,Zhang,d.H.,et al.,deep learning for real time Crime forecasting,2017,ar Xiv:1707.03340].

关键词： Crime representation Spatial-temporal deep learning Real-time forecasting Ternarization

Effects of Porosity on Piezoelectric Characteristics of Polyvinylidene Fluoride Films for Biomedical Applications

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Biomedical Engineering Frontiers 2023年第1期4卷 92-99页

作者： jack T.Kloster Matthew J.danley Victor K.Lai Ping Zhao Advanced Materials Science University of Minnesota-DuluthDuluthMN 55812USA department of Chemical Engineering University of Minnesota-DuluthDuluthMN 55812USA department of Mechanical and Industrial Engineering University of Minnesota-DuluthDuluthMN 55812USA

Objective:The objective of this work is to study the effects of porosity on mechanical and piezoelectric properties of polyvinylidene fluoride(PVdF)films for biomedical *** Statement:By investigating the piezoelectric properties of PVdF and the porosity effect on its electromechanical performance,there is potential for further development of PVdF as a hemodynamic sensor that can lead to further technological advancements in the biomedical field,benefiting patients and physicians ***:PVdF thin films have shown potential in the application of hemodynamic flow sensing and monitoring the effects on blood flow caused by prosthetic valve implantation via the transcatheter aortic valve replacement *** piezoelectric performance of PVdF films can be influenced by the porosity of the ***:In this study,strain tracking was performed on thin film PVdF specimens with various levels of porosity and pore sizes to determine the mechanical properties of the *** mechanical properties were used to model the PVdF material in COMSOL multiphysics software,in which compression test simulations were performed to determine the piezoelectric coefficient d33 of the ***:A decline in the elastic modulus was found to be highly inversely correlated with porosity of the specimens and the simulation results show that elastic modulus had a much greater effect on the piezoelectric properties than Poisson’s ***:A combination of experimental and computational techniques was able to characterize and correlate the mechanical properties of PVdF films of varying porosities to their piezoelectric properties.

关键词： piezoelectric porosity modulus