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https://www.readbyqxmd.com/read/29448740/effect-of-intermetallic-compound-formation-in-friction-welded-al-alloy-rods
#1
Yong-Deok Im, Kwang-Suk Park, Kuk-Hyun Song
This study was carried out to evaluate the development of microstructures and mechanical properties on friction welded dissimilar materials with a light weight. For this work, Al6063 and Duralumin alloys with a shape of rod were selected as experimental materials, and friction welding was performed under conditions with a rotation speed of 2,000 RPM, a friction load of 12 kgf/cm2 and an upset force of 25 kgf/cm2, respectively. After welding, the microstructural analysis such as the grain boundary characteristic distributions and the formation of intermetallic compounds was analyzed by electron back-scattering diffraction method and transmission electron microscopy, respectively...
March 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29392563/lysobacter-spongiae-sp-nov-isolated-from-spongin
#2
Heejae Choi, Wan-Taek Im, Jin-Sook Park
A Gram-negative, motile, aerobic and rod-shaped bacterial strain designated 119BY6-57T was isolated from spongin. The taxonomic position of the novel isolate was confirmed using the polyphasic approach. Strain 119BY6-57T grew well at 25-30°C on marine agar. On the basis of 16S rRNA gene sequence similarity, strain 119BY6-57T belongs to the family Xanthomonadaceae and is related to Lysobacter aestuarii S2-CT (99.8% sequence similarity), L. maris KMU-14T (97.5%), and L. daejeonensis GH1-9T (97.3%). Lower sequence similarities (97...
February 2018: Journal of Microbiology / the Microbiological Society of Korea
https://www.readbyqxmd.com/read/29381920/corrective-osteotomy-with-retrograde-fassier-duval-nail-in-an-osteogenesis-imperfecta-patient-with-bilateral-genu-valgum-a-case-report
#3
Tsung-Yu Lin, Chen-Yu Yang, Shih-Chia Liu
RATIONALE: The treatment of osteogenesis imperfecta (OI) requires a multidisciplinary approach to maximize function and reduce fracture incidence. The aim of this case report was to discuss an alternative surgical approach to stabilize a corrective osteotomy using the Fassier Duval (FD) system in an OI patient. PATIENT CONCERNS: A 20-year-old OI woman presented with left thigh pain, gait disturbance, and bilateral genu valgus deformities. DIAGNOSES: Physical examination and standing radiographs revealed bilateral genu valgum with previous fixation implants in the femoral and the left tibia...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29299847/baekduia-soli-gen-nov-sp-nov-a-novel-bacterium-isolated-from-the-soil-of-baekdu-mountain-and-proposal-of-a-novel-family-name-baekduiaceae-fam-nov
#4
Dong-Shan An, Muhammad Zubair Siddiqi, Kyoung-Ho Kim, Hong-Shan Yu, Wan-Taek Im
A taxonomic study was conducted on BR7-21T, a bacterial strain isolated from the soil of a ginseng field in Baekdu Mountain. Comparative studies of the 16S rRNA gene sequence showed that the isolate was most closely related to Conexibacter woesei DSM 14684T, Solirubrobacter pauli ATCC BAA-492T, Patulibacter minatonensis JCM 12834T, with 93.8%, 92.4%, and 91.5% sequence similarity, respectively; each genus represented a family in the order Solirubrobacterales. Strain BR7-21T was Gram-reaction positive, non-spore forming, aerobic, non-motile, and short rod-shaped...
January 2018: Journal of Microbiology / the Microbiological Society of Korea
https://www.readbyqxmd.com/read/29297848/ciceribacter-azotifigens-sp-nov-a-nitrogen-fixing-bacterium-isolated-from-activated-sludge
#5
Muhammad Zubair Siddiqi, Gyu-Min Choi, Wan-Taek Im
A Gram-reaction-negative, catalase- and oxidase-positive, aerobic, transparent, motile and rod-shaped bacterium that was capable of fixing dinitrogen (designated strain A.slu09T), isolated from activated sludge, was characterized by a polyphasic approach to clarify its taxonomic position. Strain A.slu09T was observed to grow optimally at 30 °C and at pH 7.0 on R2A agar medium. Strain A.slu09T showed β-glucosidase activity, converting the major ginsenoside Rd to ginsenoside F2. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain A...
January 3, 2018: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/29289978/aeromicrobium-panacisoli-sp-nov-isolated-from-soil-of-ginseng-cultivating-field
#6
Muhammad Zubair Siddiqi, Soon Youl Lee, Kang Duk Choi, Wan-Taek Im
A Gram-positive, rod-shaped, non-spore-forming, and aerobic bacterium (Gsoil 137T) was isolated from soil of a ginseng field of Pocheon province in South Korea and subjected to a polyphasic approach in order to determine its taxonomic position. On the basis of 16S rRNA gene sequence similarity, strain Gsoil 137T was shown to belong to the family Nocardioidaceae and was closely related to Aeromicrobium ginsengisoli Gsoil 098T (96.7%), Aeromicrobium panaciterrae (96.7%), and Aeromicrobium halocynthiae JCM 15749T (96...
December 30, 2017: Current Microbiology
https://www.readbyqxmd.com/read/29185955/paraburkholderia-azotifigens-sp-nov-a-nitrogen-fixing-bacterium-isolated-from-paddy-soil
#7
Gyu-Min Choi, Wan-Taek Im
A Gram-stain-negative, aerobic, non-motile and rod-shaped bacterial strain, designated NF2-5-3T, was isolated from a paddy soil in Anseong city, Republic of Korea. This bacterium was characterized to determine its taxonomic position using a polyphasic approach. On the basis of 16S rRNA gene sequence analysis, strain NF2-5-3T had a close relationship with, and was related most closely to, members of the genus Paraburkholderia, namely Paraburkholderia caribensis MWAP64T (98.8 % similarity), P. sabiae Br3407T (98...
November 29, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/29165993/hybrid-structured-illumination-expansion-microscopy-reveals-microbial-cytoskeleton-organization
#8
Aaron R Halpern, Germain C M Alas, Tyler J Chozinski, Alexander R Paredez, Joshua C Vaughan
Recently developed tissue-hydrogel methods for specimen expansion now enable researchers to perform super-resolution microscopy with ~65 nm lateral resolution using ordinary microscopes, standard fluores-cent probes, and inexpensive reagents. Here we use the combination of specimen expansion and the optical super-resolution microscopy technique structured illumination microscopy (SIM) to extend the spatial reso-lution to ~30 nm. We apply this hybrid method, which we call ExSIM, to study the cytoskeleton of the im-portant human pathogen Giardia lamblia including the adhesive disc and flagellar axonemes...
November 22, 2017: ACS Nano
https://www.readbyqxmd.com/read/29134929/mucilaginibacter-panaciglaebae-sp-nov-isolated-from-soil-of-a-ginseng-field
#9
Soon Youl Lee, Muhammad Zubair Siddiqi, Sang Yong Kim, Hong Shan Yu, Jae Hak Lee, Wan-Taek Im
A Gram-reaction-negative, strictly aerobic, non-motile and rod-shaped bacterium, designated strain BXN5-31(T), was isolated from soil of a ginseng field, and its taxonomic position was investigated using a polyphasic approach. Strain BXN5-31(T) grew at 18-37 °C and at pH 6.0-8.0 on R2A medium. Based on 16S rRNA gene sequence similarity, strain BXN5-31(T) was shown to belong to the genus Mucilaginibacter and was closely related to Mucilaginibactersoyangensis HME6664(T), Mucilaginibacterximonensis XM-003(T) and Mucilaginibacterpuniceus WS71(T)...
November 14, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/29116033/phenylobacterium-hankyongense-sp-nov-isolated-from-ginseng-field-soil
#10
Gyu-Min Choi, Soon-Youl Lee, Kang Duk Choi, Wan-Taek Im
A Gram-stain-negative, aerobic, non-motile, non-spore-forming and rod-shaped bacterial strain, designated HKS-05(T), was isolated from ginseng field soil. This bacterium was characterized to determine its taxonomic position by using the polyphasic approach. HKS-05(T) grew at 10-37 °C and at pH 6.0-8.0 on R2A agar. On the basis of 16S rRNA gene sequence similarity, HKS-05(T) was shown to represent a member of the family Caulobacteraceaeand to be related to Phenylobacterium lituiforme FaiI3(T) (98.1 % sequence similarity), 'Phenylobacterium zucineum' HLK1 (97...
November 8, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/29099722/formation-and-magnetic-properties-of-infep-ag-nano-rods-fabricated-with-noble-metal-ag-using-ion-milling-method
#11
Jae Min Sohn, Hyungsang Kim, Hyunsik Im, Hyungbae Kim, Juwon Lee, Yoon Shon, Ganapathi Subramaniam, Tae Won Kang, Deuk Young Kim, Hyun Cheol Koo, Joo-Hyeon Lee, Jin Dong Song, Chang-Soo Park, Eun Kyu Kim
The formation including density, and height of InFeP:Ag nano-rods doped with noble metal Ag using ion milling method was preponderantly determined from TEM and XRD analyses. We investigate especially the enhanced ferromagnetism of the well aligned InFeP:Ag nano-rods. AES and XPS measurements were carried out in order to investigate the incorporation of Ag and to verify the local chemical bonding of InFeP:Ag nano-rods. The variation of FWHM for DCRC and TAD peaks demonstrates that noble metal Ag is incorporated into InFeP:Ag nano-rods...
November 3, 2017: Nanotechnology
https://www.readbyqxmd.com/read/29090323/vibrio-hannami-sp-nov-isolated-from-seawater
#12
Ga-Eun Lee, Wan-Taek Im, Jin-Sook Park
A Gram-reaction negative, aerobic, motile, non-pigmented and rod-shaped bacterium, designated as 168GH5-2-16(T), was isolated from seawater Jeju island. Phylogenetic analysis based on 16S rRNA gene sequence comparison revealed that the strain formed a distinct lineage within the genus Vibrio and was most closely related to Vibrio variabilis R-40492(T) (96.0%). The DNA G+C content was 49.3 mol%. The major polar lipids were phosphatidylethanolamine (PE) and phosphatidylglycerol (PG). The predominant quinone was ubiquinone-8 (Q-8)...
October 31, 2017: Current Microbiology
https://www.readbyqxmd.com/read/29039306/paenibacillus-azotifigens-sp-nov-a-novel-nitrogen-fixing-bacterium-isolated-from-paddy-soil
#13
Muhammad Zubair Siddiqi, Gyu-Min Choi, Kang Duk Choi, Wan-Taek Im
A nitrogen-fixing bacterium, designated NF2-4-5(T), was isolated from a paddy soil in Anseong City, Korea. Cells of strain NF2-4-5(T) were Gram-staining-positive, motile rods and aerobic. Phylogenetic analysis based on 16S rRNA gene sequence comparison revealed that the strain formed a distinct lineage within the genus Paenibacillus and was closely related to Paenibacillus graminis RSA19(T) (98.7 %), Paenibacillus jilunlii Be17(T) (98.6 %), Paenibacillus salinicaeni LAM0A28(T) (98.6 %) and Paenibacillus riograndensis SBR5(T) (98...
October 17, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28984224/phenylobacterium-deserti-sp-nov-isolated-from-desert-soil
#14
Inam Ullah Khan, Firasat Hussain, Neeli Habib, Mohammed A M Wadaan, Iftikhar Ahmed, Wan-Taek Im, Wael N Hozzein, Xiao-Yang Zhi, Wen-Jun Li
A novel bacterial strain, designated YIM 73061(T), was isolated from the Cholistan desert in Punjab, Pakistan, and characterized by using a polyphasic taxonomic approach. 16S rRNA gene sequence analysis revealed the highest levels of sequence similarity with respect to Phenylobacterium conjunctum FWC21(T) (97.6 %), Phenylobacterium lituiforme FaiI3(T) (97.4 %), Phenylobacteriumcomposti 4T-6(T) (97.0 %) and Phenylobacterium aquaticum W2-3-4(T) (96.8 %). Cells were Gram-stain-negative, aerobic and motile rods that formed orange colonies...
October 6, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28945539/sphingomonas-agri-sp-nov-a-bacterium-isolated-from-soil
#15
Muhammad Zubair Siddiqi, Gyu-Min Choi, Sang Yong Kim, Kang Duk Choi, Wan-Taek Im
A Gram-reaction-negative, aerobic, non-motile, white (translucent) and rod-shaped bacterium (designated HKS-06T) isolated from soil was characterized by a polyphasic approach to clarify its taxonomic position. Strain HKS-06T was observed to grow optimally at 30 °C and at pH 6.5-7.0 on R2A agar medium. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain HKS-06T belongs to the genus Sphingomonas and is most closely related to Sphingomonas lutea JS5T (97.4 % similarity). The G+C content of the genomic DNA was 64...
September 25, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28821948/mucilaginibacter-ginsenosidivorans-sp-nov-isolated-from-soil-of-ginseng-field
#16
Minseok M Kim, Muhammad Zubair Siddiqi, Wan-Taek Im
A Gram-reaction-negative, aerobic, nonmotile, nonspore-forming, and rod-shaped bacterial strain designated Gsoil 3017(T) was isolated from soil of ginseng field and investigated by phenotypic and phylogenetic analyses. Strain Gsoil 3017(T) grew at 10-37 °C (optimal growth at 30 °C) and at pH 5.5-8.0 (optimal growth at pH 7) on R2A and nutrient agar without additional NaCl as a supplement. Strain Gsoil 3017(T) possessed β-glucosidase activity, which was responsible for its ability to transform ginsenosides Rb1, Rc, and Rd (the three dominant active components of ginseng) to F2 and C-K, respectively...
December 2017: Current Microbiology
https://www.readbyqxmd.com/read/28809138/daejeonia-ginsenosidivorans-gen-nov-sp-nov-a-ginsenoside-transforming-bacterium-isolated-from-lake-water
#17
Muhammad Zubair Siddiqi, Gyu-Min Choi, Mi-Sun Kim, Wan-Taek Im
A Gram-stain-negative, oxidase- and catalase-positive, strictly aerobic, non-gliding bacterial strain, designated as NPT, was isolated from lake water and subjected to a taxonomic study using a polyphasic approach. Colonies of strain NP5T were light-yellow-coloured, circular with regular margins, and opaque. Cells were rods, 0.2-0.5 µm wide and 1.2-3.0 µm long. Strain NP5T possessed β-glycosidase activity, which was responsible for its ability to convert ginsenosides Rb1, Rc and Rd (three main active components of ginseng) to ginsenoside F2...
August 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28752296/pseudaminobacter-granuli-sp-nov-isolated-from-granules-used-in-a-wastewater-treatment-plant
#18
Young Ki Hahn, Minseok S Kim, Wan-Taek Im
A Gram negative, aerobic, non-motile and rod-shaped bacterial strain designated as Gr-2(T) was isolated from granules used in a wastewater treatment plant in Korea, and its taxonomic position was investigated using a polyphasic approach. Strain Gr-2(T) grew at 18-37°C (optimum temperature, 30°C) and a pH of 6.0-8.0 (optimum pH, 7.0) on R2A agar medium. Based on 16S rRNA gene phylogeny, the novel strain showed a new branch within the genus Pseudaminobacter of the family Phyllobacteriaceae, and formed clusters with Pseudaminobacter defluvii THI 051(T) (98...
August 2017: Journal of Microbiology / the Microbiological Society of Korea
https://www.readbyqxmd.com/read/28699880/paenibacillus-konkukensis-sp-nov-isolated-from-animal-feed
#19
Wan-Taek Im, Kwon-Jung Yi, Sang-Suk Lee, Hyung In Moon, Che Ok Jeon, Dong-Woon Kim, Soo-Ki Kim
A Gram-stain-positive, oxidase- and catalase-positive, aerobic, rod-shaped bacterium, designated strain SK-3146T, was isolated from animal feed. Phylogenetic analysis, based on 16S rRNA gene sequence comparisons, revealed that the strain formed a distinct lineage within the genus Paenibacillus that was closely related to Paenibacillusyunnanensis JCM 30953T (98.6 %), Paenibacillusvulneris CCUG 53270T (98.0 %) and Paenibacilluschinjuensis DSM 15045T (96.9 %). Cells were non-motile, endospore-forming and formed milky colonies on NA and R2A agar media...
July 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28689660/structure-of-full-length-smc-and-rearrangements-required-for-chromosome-organization
#20
Marie-Laure Diebold-Durand, Hansol Lee, Laura B Ruiz Avila, Haemin Noh, Ho-Chul Shin, Haeri Im, Florian P Bock, Frank Bürmann, Alexandre Durand, Alrun Basfeld, Sihyun Ham, Jérôme Basquin, Byung-Ha Oh, Stephan Gruber
Multi-subunit SMC complexes control chromosome superstructure and promote chromosome disjunction, conceivably by actively translocating along DNA double helices. SMC subunits comprise an ABC ATPase "head" and a "hinge" dimerization domain connected by a 49 nm coiled-coil "arm." The heads undergo ATP-dependent engagement and disengagement to drive SMC action on the chromosome. Here, we elucidate the architecture of prokaryotic Smc dimers by high-throughput cysteine cross-linking and crystallography. Co-alignment of the Smc arms tightly closes the interarm space and misaligns the Smc head domains at the end of the rod by close apposition of their ABC signature motifs...
July 20, 2017: Molecular Cell
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