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Performance of fluoride and boron compounds against drywood and subterranean termites and decay and mold fungi

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Journal of Forestry Research 2020年第4期31卷 1425-1434页

作者： S.nami Kartal Evren Terzi Tsuyoshi Yoshimura Faculty of Forestry Istanbul University-Cerrahpas¸a34473 BahcekoyIstanbulTurkey RISH Kyoto UniversityUjiKyoto 611-1100Japan

Sodium fluoride(NaF)and disodium octaborate tetrahydrate(DOT)are well-known fungicides for preventing and remediating decay in wood and wood structures,due to their excellent diffusion properties in *** efficacy of both compounds against drywood termites is,however,inadequately studied;there is a lack of information on the development of proper protection and control methods against drywood termites using these diffusible *** this study,the threshold values of fluoride and boron against drywood and subterranean termites and decay and mold fungi were assessed in laboratory *** Cryptomeria japonica ***(sugi)sapwood specimens with four different concentrations of NaF and DOT applied by either dipping or vacuum processes were subjected to attack by drywood termites,Incisitermes minor(Hagen)for 6 *** specimens were also tested against subterranean termites,Coptotermes formosanus Shiraki for 3 *** decay and mold resistance tests were then performed to determine the efficacy of the compounds against fungal *** showed 80%or greater drywood termite mortality in wood specimens treated with NaF at a retention level of1.7 kg m-3 or *** DOT treated groups,higher retention levels(greater than 6.8 kg m-3)were needed to reach up to 80%or more termite *** general,weight losses in NaF-treated specimens were slightly lower than those in DOT-treated *** levels of around1.2 kg m-3 for NaF and 1.6 kg m-3 for DOT were high enough to reach the JIS K 1571 threshold requirement of weight loss less than 3%in subterranean termite resistance *** higher termite mortality values were seen in the DOT than NaF treatments at respective retention *** decay resistance tests,no weight losses were seen at a NaF retention level of 2.3 kg m-3;however,a retention level of nearly 4 kg m-3 for DOT was needed for complete protection against both test *** most cases,lower weight losses were obtained i

关键词： NaF DOT Remedial treatments Termites Fungi

Efficient Synthesis of 2-Arylamino-2-imidazolines and 2-Aminobenzimidazoles with Aminoiminomethanesulfonic Acid Derivatives

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Chinese Journal of Chemistry 2011年第5期29卷 1055-1058页

作者： Mohanazadeh Farajollah nami Navabe Hosseini Samine Sadat Institute of Industrial Chemistry Iranian Research Organization for Science and Technology Tehran Iran Department of Chemistry Azad Islamic University Babol lran

A highly efficient synthesis of 2-arylamino-2-irnidazolines and 2-aminobenzimidazoles from aminoiminomethanesulfonic acid derivatives is described. The method is simple and practical, generating imidazoline and benzim... 详细信息

关键词： 2-arylamino-2-imidazoline 2-aminobenzimidazole synthesis cyclization heterocycle aminoimi nomethanesulfonic acid ureas

Movement of boron from ulexite and colemanite minerals in sapwood and heartwood of Cryptomeria japonica

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Journal of Forestry Research 2020年第6期31卷 2597-2603页

作者： Saip nami Kartal Evren Terzi Aysel Kanturk Figen Tsuyoshi Yoshimura Department of Forest Biology and Wood Protection Technology Faculty of Forestry Istanbul University-Cerrahpaşa34473 BahcekoyIstanbulTurkey Department of Chemical Engineering Faculty of Chemistry-MetallurgicalYıldız Technical UniversityDavutpasa Esenler34210 IstanbulTurkey Laboratory of Innovative Humano-Habitability Research Institute for Sustainable Humanosphere(RISH)Kyoto UniversityUjiKyoto 611-0011Japan

This study evaluated boron diff usion from raw boron minerals ulexite and colemanite with low water solubility in comparison to disodium octaborate tetrahydrate(DOT).Tests were conducted using sugi(Cryptomeria japonica(L.)***)sapwood and heartwood blocks conditioned to 30,60,and 90%target moisture *** blocks were fi lled with the boron compounds through treatment holes and diff usion was observed at three assay zones across the blocks after 7,30,60 or 90-day incubation period at room *** comparison,ethylene glycol was also introduced into the holes to elevate boron diff *** expected,diff usion increased with increased moisture content and levels were higher at the 60%and 90%moisture levels compared to the 30%*** some exceptions,boron levels did not follow consistent gradients with distance away from the treatment *** of ethylene glycol helped increase boron levels,even in heartwood *** levels were higher from the ulexite source than from colemanite;however,DOT treatments resulted in the highest boron diff usion rates as a result of greater water solubility compared to both raw boron *** results suggest that ulexite together with ethylene glycol may be useful in both sapwood and heartwood materials when kept at high moisture levels for extended periods.

关键词： Boron Remedial Ulexite Colemanite DOT Distribution Sapwood Heartwood

Microstructural Evolution during Partial Remelting of Al—Si Alloys Containing Different Amounts of Magnesium

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Journal of Materials Science & Technology 2013年第10期29卷 971-978页

作者： A.Abedi M.Shahmiri B.Amir Esgandari B.nami Department of Mechanical Engineering Shahid Rajaee Teacher Training University (SRTTU) School of Metallurgy and Materials Science Iran University of Science and Technology (IUST)

The effect of magnesium on the microstructures of A356 aluminum alloy in as-cast and semi-solid conditions was investigated. The result showed that magnesium refined the size of primary α（Al） phase and eutectic silicon. Magnesium also modified considerably the eutectic silicon and decreased the size of globular α（Al） solid phase in the semi-solid processed alloy. Coarsening rate of the solid α（Al） phase during partial remelting at semi-solid temperature decreased by adding magnesium, probably due to the decrease of both the solid- liquid interfacial energy and inter-diffusion coefficient of solute atoms.

关键词： Al--Si alloys Magnesium Microstructure Semi-solid processing Coarsening

Biological performance,water absorption,and swelling of wood treated with nano-particles combined with the application of Paraloid B72~

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Journal of Forestry Research 2017年第2期28卷 381-394页

作者： Damla Muhcu Evren Terzi S.nami Kartal Tsuyoshi Yoshimura Department of Forest Biology and Wood Protection Technology Faculty of ForestryIstanbul University Laboratory of Innovative Humano-habitability Research Institute for Sustainable Humanosphere (RISH)Kyoto University

We evaluated fungal decay and mold resistance,leaching, and water absorption of nano-compounds and Paraloid B72-（PB72） in treated wood specimens to develop new methods of consolidation by combining nanoparticles and consolidants. Scots pine wood specimens were treated with dispersions of nano-Cu O, nano-Zn O,nano-B2O3, nano-Ti O2, and nano-Ce O2. PB72 treatments of nano-particle-treated wood specimens were then carried out by either vacuum or immersion for 24 h. Previously,decayed wood specimens were also consolidated with the nano-compounds and PB72. PB72 treatments reduced element release from treated wood specimens. Nearly all nano-compounds ？ PB72 treatments increased the biological performance of treated wood specimens against decay fungi tested. PB72-only treated wood specimens had the highest weight losses in decay tests. No improvements were obtained in mold resistance tests when the nanocompounds and PB72 were combined. In nano-compoundonly treatments, unleached specimens showed slightly lower water absorption values compared to untreated control specimens. Incorporation of PB72 into nano-compound-treated wood specimens resulted in considerably lower water absorption and volumetric swell. In previously decayed specimens treated with the nano-compounds and PB72 solution, water absorption after 2-h immersion declined compared to control specimens.

关键词： leaching declined untreated retention fungi versicolor fungal fungus leached decay

Eth2Vec:Learning contract-wide code representations for vulnerability detection on Ethereum smart contracts

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Blockchain(Research and Applications) 2022年第4期3卷 109-122页

作者： nami Ashizawa Naoto Yanai Jason Paul Cruz Shingo Okamura School of Information Science and Technology Osaka UniversityOsaka 565-0871Japan Osaka University Osaka 565-0871Japan National Institute of Technology Nara CollegeNara 639-1080Japan

Ethereum smart contracts are computer programs that are deployed and executed on the Ethereum blockchain to enforce agreements among untrusting *** the most prominent platform that supports smart contracts,Ethereum has been targeted by many attacks and plagued by security ***,many smart contract vulnerabilities have been discovered in the past *** detect and prevent such vulnerabilities,different security analysis tools,including static and dynamic analysis tools,have been created,but their performance decreases drastically when codes to be analyzed are constantly being *** this paper,we propose Eth2Vec,a machine-learning-based static analysis tool that detects smart contract ***2Vec maintains its robustness against code rewrites;i.e.,it can detect vulnerabilities even in rewritten *** machine-learning-based static analysis tools require features,which analysts create manually,as *** contrast,Eth2Vec uses a neural network for language processing to automatically learn the features of vulnerable *** doing so,Eth2Vec can detect vulnerabilities in smart contracts by comparing the similarities between the codes of a target contract and those of the learned *** performed experiments with existing open databases,such as Etherscan,and Eth2Vec was able to outperform a recent model based on support vector machine in terms of well-known metrics,i.e.,precision,recall,and F1-score.

关键词： Ethereum Smart contracts Blockchain Neural networks Static analysis Code similarity Vulnerability detection

Gelatin-maltodextrin microcapsules as carriers of vitamin D3 improve textural properties of synbiotic yogurt and extend its probiotics survival

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Food Bioscience 2023年第3期53卷 454-462页

作者： Behnam nami Mahsa Tofighi Mohammad Molaveisi Arezoo Mahmoodan Danial Dehnad Department of Food Science and Engineering University College of Agriculture&Natural ResourcesUniversity of TehranKarajIran Department of Petroleum and Chemical Engineering Science and Research BranchIslamic Azad UniversityTehranIran Department of Food Chemistry Research Institute of Food Science and Technology(RIFST)MashhadIran Department of Agricultural Sciences and Food Industries Science and Research BranchIslamic Azad UniversityTehranIran

Food fortification is one of the most essential processes to compensate for the deficiency of minerals and vitamins in customers’***,this study aimed to fortify low-fat stirred yogurt via encapsulated vitamin D_(3)(VD_(3))in maltodextrin and gelatin matrix,characterize obtained microcapsules(encapsulation efficiency,zeta potential,particle size,differential scanning calorimetry(DSC),scanning electron microscopy(SEM),Fourier transformation infrared(FTIR)spectroscopy,release features,and explore the properties of resultant yogurt including its syneresis,prebiotic activity,sensory properties,and *** efficiency and loading efficiency of microcapsules were satisfactorily high(Up to 97%and 25%,respectively).Microscopy images of microencapsulated VD_(3)showed a smooth surface as well as spherical and slight cracks in the *** microcapsules had strong negative zeta potentials(-27.29 mV),implying a considerable repulsive force between microcapsules and their good *** FTIR result showed strong interactions between VD_(3)and wall materials,confirming the presence of VD_(3)in the ***_(3)had an almost slow release in the gastric,while it was quickly released from microcapsules under simulated intestinal *** of yogurts with encapsulated VD_(3)led to an increase in textural parameters where syneresis value decreased and viscosity *** number of probiotics in fortified yogurts was also considerably higher than in the control *** sensory analyses revealed no major differences between the fortified and control samples,hinting that protein-polysaccharide microcapsules were suitable wall materials for VD_(3)microencapsulation,and these microcapsules could potentially have numerous applications in the food industry.

关键词： Vitamin D_(3) Synbiotic food Freeze drying Morphological investigation Micro-carrier

Biological performance of particleboard incorporated with boron minerals

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Journal of Forestry Research 2017年第1期28卷 195-203页

作者： Evren Terzi S.nami Kartal Philippe Gerardin Claudia Marcela Ibanez Tsuyoshi Yoshimura Department of Forest Biology and Wood Protection Technology Faculty of ForestryIstanbul University34473 BahcekoyIstanbulTurkey Faculte des Sciences et Technologies Universite de Lorraine54506 Vandoeuvre-les-Nancy CedexFrance Unidad Academica de Gestion Tecnologica Departamento TecnologicoFacultad de QuimicaUniversidad de la Republica UruguayMontevideoUruguay Laboratory of Innovative Humano-Habitability Research Institute for Sustainable Humanosphere(RISH)Kyoto UniversityUjiKyoto 611-0011Japan

We compared resistance to decay, mold fungi, termites and insect larvae of particleboards incorporated with the raw boron minerals ulexite and colemanite to that of particleboards impregnated with the commercial boron preservative zinc borate, or boric acid plus a borax mixture. We also quantified water absorption, thickness swell and boron release of particleboards. Ulexite had the best decay resistance, and colemanite had the best termite resistance. However, ulexite and colemanite were not as effective as zinc borate or the boric acid/borax mixture in preventing mold growth. In general, the boric acid/borax mixture combination was more effective against Anobium larvae than the other treatments. Less boron was released by specimens containing zinc borate and colemanite than by those containing ulexite or the boric acid/borax mixture. In general, water absorption and thickness swell were similar among the different treatments, but both were slightly higher in the ulexite-incorporated specimens. Further mechanical tests will be needed to evaluate the particle- board properties and thereby the compatibility of these boron minerals with various manufacturing processes.

关键词： Biological resistance Borax Boric acid Colemanite Particleboard Ulexite

Comparative evaluation of boron distribution from ulexite,colemanite and DOT rods in Scots pine wood

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Journal of Forestry Research 2021年第1期32卷 419-426页

作者： Saip nami Kartal Evren Terzi Aysel Kanturk Figen Melek Cordan Secil Aydin Sabriye Piskin Department of Forest Biology and Wood Protection Technology Faculty of Forestry Istanbul University-Cerrahpasa34473 BahcekoyIstanbulTurkey Department of Chemical Engineering Faculty of Chemistry-MetallurgicalYıldız Technical University34210 Davutpasa EsenlerIstanbulTurkey

This study evaluated boron diff usion from rods made of raw boron minerals,ulexite and colemanite with low water solubility,in comparison with di-sodium octaborate tetrahydrate(DOT).Scots pine(Pinus sylvestris L.)sapwood and heartwood blocks were conditioned to target moisture contents of 30%,60%,and 90%.The rods were inserted into the blocks through treatment holes and boron diff usion was observed at three assay zones across the blocks after 7,30,60 and 90-day-incubation at room *** glycol was also inserted into the holes to improve boron diff *** levels increased with increased wood moisture *** some exceptions,boron in the assay zones did not tend to follow consistent amount gradients with distance from the treatment *** levels from ulexite rods were higher than those from colemanite rods,with DOT rods with the highest diff usion rates as a result of higher water solubility of DOT than ulexite and *** results suggest that ulexite-based rods may be useful inthe presence of ethylene glycol in sapwood when wood is at high moisture content for extended periods.

关键词： Boron rods Remedial Ulexite Colemanite Distribution DOT