Results 31 to 40 of about 202 (168)

Structural and biochemical insights into the thermostable esterase Ta0887 from Thermoplasma acidophilum

FEBS Open Bio, EarlyView.
In this study, a novel esterase from the thermoacidophilic archaeon Thermoplasma acidophilum was biochemically and structurally characterized. Our results demonstrate that Ta0887 is a highly thermostable esterase that preferentially hydrolyzes p‐nitrophenyl hexanoate and possesses an α‐helical cap domain that likely contributes to its substrate ...
Alejandro Delgado‐Rey, Miriam Livier Llamas‐García, Gabriela M. Montero‐Morán, Leticia Santos, Samuel Lara‐González   +4 more
wiley   +1 more source

Eriyik Tuz Reaktörlerinde Yakıt Malzemesi Olarak Kullanılan Na Çekirdeğinin Üretim Tesir Kesiti Hesaplamaları

Süleyman Demirel Üniversitesi Fen-Edebiyat Fakültesi Fen Dergisi, 2014
Özet: Bu çalışmada, eriyik tuz reaktörlerinde yakıt malzemesi olarak kullanılan Na çekirdeğinin üretim tesir kesitleri hesaplanmıştır. Hesaplamalar; 24Mg(p,α)21Na, 23Na(n,γ)24Na, 24Mg(n,p)24Na, 20Ne(d,n)21Na ve 23Na(n,2n)22Na reaksiyonları için 70 MeV ...
S. Sedat DOĞAN, Veli ÇAPALI, Hasan ÖZDOĞAN, Abdullah KAPLAN   +3 more
doaj  

Progress in strange particle production and hypernuclear physics in intermediate and high-energy heavy-ion collisions

He jishu, 2023
We reviewed the recent progress on strange particle production and hypernuclear physics both in experiments and in theories. The temporal evolutions of nucleons and resonances are described by the Skyrme energy density functional and relativistic ...
FENG Zhaoqing, LIU Hengjin, CHENG Huigan, WEI Sina   +3 more
doaj   +1 more source

A minimal cellulosome‐like system in Cellulosilyticum lentocellum

FEBS Open Bio, EarlyView.
Cellulose‐degrading bacteria typically use cellulosomes, large multi‐enzyme complexes on a scaffold protein. In Cellulosilyticum lentocellum, we characterise a far smaller arrangement, a single scaffold bound to one cellulase through a single cohesin‐dockerin interaction.
John Allan, Amias Alstrom‐Moore, Gary W Black   +2 more
wiley   +1 more source

Statistical theory of light nucleus reactions with 1p-shell light nuclei

EPJ Web of Conferences, 2017
The 1p-shell light elements (Li, Be, B, C, N, and O) had long been selected as the most important materials for improving neutron economy in thermal and fast fission reactors and in the design of accelerator-driven spallation neutron sources.
Xiaojun Sun, Jingshang Zhang
doaj   +1 more source

Creating Ti–Fe α/β Alloys by Diffusion‐Driven Solid‐State Processing

Advanced Engineering Materials, EarlyView.
This study proposes making alloys containing fast diffusing elements that are difficult to produce by ingot metallurgy, by diffusion‐driven solid‐state HIP processing of elemental powders and low‐temperature homogenisation. Here, novel Fe‐Ti α–β alloys are formed having fine α–β lamellae, a small β prior grain size without significant intermetallics ...
Jiaqi Xu, Xun Zhang, Jack M. Donoghue, Albert D. Smith, Rahul Unnikrishnan, Rhys Thomas, Vahid Nekouie, Jie Luo, Dongchen Hu, Michael Preuss, Philip J. Withers   +10 more
wiley   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

Advanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

197Au İçin Reaksiyon Tesir Kesiti Hesaplamaları

Süleyman Demirel Üniversitesi Fen-Edebiyat Fakültesi Fen Dergisi, 2013
Özet: Bu çalışmada, 197Au izotopunun nötron üretim tesir kesitleri denge ve denge-öncesi nükleer reaksiyon modelleri kullanılarak hesaplanmıştır. Denge durumu hesaplamaları için; Weisskopf-Ewing model, denge-öncesi hesaplamalar için ise; Hibrit, Geometri
Hasan Özdoğan, Abdullah Kaplan
doaj  

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source

NEW CALCULATIONS OF PROTON CYCLOTRON PRODUCTON CROSS SECTIONS FOR SOME MEDICAL RADIOISOTOPES AND TARGET NUCLEI USED ON THE SPALLATION NEUTRON SOURCES

Süleyman Demirel Üniversitesi Fen-Edebiyat Fakültesi Fen Dergisi, 2009
: In this study, the new calculations on the excitation functions of 18O(p,n)18F, 68Zn(p,n)68Ga, 68Zn(p,2n)67Ga, 112Cd(p,2n)111In, 209Bi(p,n)209Po and 232Th(p,n)232Pa reactions have been carried out in the 5- 50 MeV incident proton energy range. In these
Emine Gamze AYDIN
doaj