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Whipping-based criterion for the identification of slamming events
Dessi, Daniele The Society of Naval Architects of Korea 2014 International Journal of Naval Architecture and Oc Vol.6 No.4
In this paper, a new criterion for the identification of slamming events is formulated. This criterion is based on the analysis of the high-frequency response, expressed in terms of the amidships VBM, which occurs after the slams. For this reason, it is named 'whipping' criterion underlining that is based on the analysis of global effects than on the kinematic description of the impact dynamics that was provided by Ochi criterion. Both the new 'whipping' criterion and the Ochi criterion are presented and compared also with respect to their practical application to the experimental data collected in the seakeeping tests with an elastic segmented model.
Dessy Ariyanti,Dina Lesdantina,Aprilina Purbasari,Yayuk Astuti 한국화학공학회 2023 Korean Journal of Chemical Engineering Vol.40 No.4
The conversion of biomass from agricultural waste into valuable chemicals and materials is in the need, considering the growing demand for chemicals and materials originating from renewable resources. In this paper the feasibility of graphene-like materials preparation from biomass namely sugarcane bagasse, rice husk, coconut shell, and sawdust using modified Hummers methods was investigated. The application of the graphene-like materials resulting from the process in the Cu (II) removal via adsorption route was also studied. The characterization of samples shows the materials produced from sugarcane bagasse and coconut shells depict the pattern of reduced graphene oxide (rGO), while the materials derived from rise husk and sawdust follow the pattern of graphene. The synthesized graphene-like materials later were used as an adsorbent for Cu (II) removal. The results shows that graphene-like materials from sugarcane bagasse and coconut shells give the highest adsorption reaction kinetics with 19.76 and 19.34 mg/g, respectively, by following the second-order-pseudo model and the adsorption isotherm fitted the Langmuir model.
Tadelle Dessie,Grum Gebreyesus,Yetnayet Mamo,김동훈,조경래,정현정,Okeyo Mwai,오성종 사단법인 한국동물생명공학회 2014 한국동물생명공학회지 Vol.29 No.1
Accurate information on the genetic and phenotypic characteristics and diversity of the indigenous Farm AnimalGenetic Resources (FAnGR) is the basis on which their present and future sustainable utilization and conservationshould be made. The paper describes the objectives, structure, functionality, content, utility and future prospects ofthe Country- Domestic Animal Genetic Resources Information System (DAGRIS) of ILRI. This electronic databaseis designed to cater for the needs of researchers, policy makers, development practitioners, teachers, students andfarmers in developing countries for efficient access to available published and grey literature from past and presentresearch results on the origin, distribution, diversity, present use and status of selected Farm Animal Genetic Resources(FAnGR) of the countries. Development of the country-modules of c-DAGRIS in English and French for Anglophoneand Francophone countries is finalized and ready to be used.
Whipping-based criterion for the identification of slamming events
Daniele Dessi 대한조선학회 2014 International Journal of Naval Architecture and Oc Vol.6 No.4
In this paper, a new criterion for the identification of slamming events is formulated. This criterion isbased on the analysis of the high-frequency response, expressed in terms of the amidships VBM, which occurs after theslams. For this reason, it is named ‘whipping’ criterion underlining that is based on the analysis of global effects thanon the kinematic description of the impact dynamics that was provided by Ochi criterion. Both the new ‘whipping’criterion and the Ochi criterion are presented and compared also with respect to their practical application to the experimentaldata collected in the seakeeping tests with an elastic segmented model
선발된 아프리카와 아시아 국가들을 위한 가축유전자원 정보시스템 구축
Tadelle Dessie,Grum Gebreyesus,Yetnayet Mamo,김동훈,조경래,정현정,Okeyo Mwai,오성종 韓國受精卵移植學會 2014 한국동물생명공학회지 Vol.29 No.1
Accurate information on the genetic and phenotypic characteristics and diversity of the indigenous Farm Animal Genetic Resources (FAnGR) is the basis on which their present and future sustainable utilization and conservation should be made. The paper describes the objectives, structure, functionality, content, utility and future prospects of the Country- Domestic Animal Genetic Resources Information System (DAGRIS) of ILRI. This electronic database is designed to cater for the needs of researchers, policy makers, development practitioners, eachers, students and farmers in developing countries for efficient access to available published and grey literature from past and present research results on the origin, distribution, diversity, present use and status of selected Farm Animal Genetic Resources (FAnGR) of the countries. Development of the country-modules of c-DAGRIS in English and French for Anglophone and Francophone countries is finalized and ready to be used.
Meselech Ambaw Dessie 대한해부학회 2018 Anatomy & Cell Biology Vol.51 No.4
Because of its embryonic origin, the thyroid gland is predisposed to multiple anatomical variations and developmental anomalies. These include the pyramidal lobe, the origin of levator glandular thyroidae, the absence of the isthmus, ectopic thyroid, accessory thyroid tissues, etc. These anatomical variations are clinically significant to surgeons, anatomists, and researchers. The present study was designed to report anatomical variations and developmental anomalies of the thyroid gland in Ethiopian population. The study was conducted on 40 cadavers used for routine dissection classes. The thyroid gland was exposed and observed for any variations and developmental anomalies. The length, width, and thickness of the lobes were measured using a vernier caliper. Differences in the incidence of pyramidal lobe and absence of the isthmus between sexes were tested using a Pearson chi-square test. The mean length, width, and thickness of the right lobe were 4.24 cm, 1.8 cm, and 1.6 cm, respectively, whereas it was 4.08 cm, 1.8 cm, and 1.6 cm, respectively for that of the left lobe. The pyramidal lobe was noted in 52.5% of the cadavers. The levator glandulae thyroidae were prevalent in 40% of the cadavers. The isthmus mainly overlies the 2nd to 4th tracheal rings and was absent in 7.5% of the cadavers. Accessory thyroid tissue and double pyramidal lobes were noted in 2.5% of the cadavers. Most of the variations of the thyroid gland were seen frequently in female but it was not statically significant. Different clinically important and rare variations of the thyroid gland were found.
Association of MITF loci with coat color spotting patterns in Ethiopian cattle
Edea, Zewdu,Dadi, Hailu,Dessie, Tadelle,Kim, Il-Hoi,Kim, Kwan-Suk Springer-Verlag 2017 Genes & Genomics Vol.39 No.3
<P>The genetics of coat color have been the focus of investigation for decades because beyond its aesthetic values, coat color is associated with thermo-tolerance, production and health traits. Despite the fascinating coat color phenotypes observed in Ethiopian cattle populations, up to now, there are no studies performed to identify and characterize polymorphisms associated with such variation at the genome level. In an attempt to identify and map the genetic basis of coat color variation in Ethiopian cattle, a genome-wide association study (GWAS), selection signatures test and network analysis were performed in 187 cattle populations genotyped on Illumina high-density chip. Loci significant at the genome-wide level (P ae<currency> 8.29 x 10(-7)) and show selection signals (F (ST) - 5SNP window = 0.13) were mainly localized on BTA22 (31.53-31.99) within the MITF gene. Network and functional annotation clustering analyses revealed that the candidate genes are involved in important pathways including melanogenesis. The results of the present study suggest a role of the MITF gene and its interaction with other genes in determining the spotting patterns observed in the Begait and Fogera cattle populations.</P>