Results 81 to 90 of about 61,101 (268)

Method and Experimental Study for Polarity Detection of Coil Systems in Three-Dimensional Induction Logging Tool

Cejing jishu
The three-component induction coil system is the core part of the three-dimensional induction tool, and the correct polarity detection is the necessary step to ensure the correct measurement of the three-dimensional induction tool.
LIU Xiaoyu, JIANG Youhong, BAI Yan, ZHANG Peijun, LIU Xiangzheng, YANG Hao, YANG Wen   +6 more
doaj   +1 more source

Analysing the significance of small conformational changes and low occupancy states in serial crystallographic data

FEBS Open Bio, EarlyView.
This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill, Yelyzaveta Pulnova, Elke De Zitter, Helen M. Ginn, Briony A. Yorke   +4 more
wiley   +1 more source

Stability Detection Method for Compensation Neutron Circuits Based on Electromagnetic Pulse Principle

Cejing jishu
The compensated neutron logging tool inverts formation porosity by measuring thermal neutron flux, with its circuit stability directly affecting porosity calculation accuracy (permissible error ±0.5%). To address issues such as radiation risks and strong
LIU Lichun, YANG Kai, PAN Mingyu, LI Nan, JIA Jian, TIAN Peng, WANG Hui, WU Xuetao   +7 more
doaj   +1 more source

Evolutionarily divergent DUF4465 domains have a common vitamin B12‐binding function

FEBS Open Bio, EarlyView.
We show that DUF4465 family proteins, widespread across bacteria from gut microbiomes, hydrothermal vents, and soil, share a common vitamin B12‐binding function. These augmented β‐jellyroll proteins bind vitamin B12 via extended loops. Our findings establish sequence‐diverse DUF4465 proteins as a widespread class of B12‐binding proteins, highlighting ...
Charlea Clarke, Michal Banasik, Rokas Juodeikis, Martin J. Warren, Richard W. Pickersgill   +4 more
wiley   +1 more source

Application Status and Development Prospect of Coil Tubing Based on Logging Technology

Cejing jishu
With the further development of unconventional oil and gas, the application of coiled tubing in logging has gradually increased, but it still faces challenges such as overlap between logging operations and downhole operations, unclear application ...
ZHOU Yang, NIU Buneng, WANG Zhuo, ZHANG Zhijiang, DU Xu, JIANG Long, LIU Ping   +6 more
doaj   +1 more source

Mass spectrometry based identification of AMP‐O‐Tris generated by Thermococcus onnurineus Cas10

FEBS Open Bio, EarlyView.
Isolated Thermococcus onnurineus Cas10 generates the noncanonical ATP‐derived product AMP‐O‐Tris while in Tris‐containing buffer as identified via mass spectrometry, revealing relaxed nucleophile selectivity under isolated conditions. These findings suggest that multiprotein Csm complex assembly restricts Cas10 reactivity toward canonical cyclic ...
Su‐Jin Lee, Ga Seul Lee, JinHan Kim, Kwang‐Hyun Park, Seong‐Ryung Go, Jeong Hee Moon, Eui‐Jeon Woo   +6 more
wiley   +1 more source

Development and Application of Ultra High Strength Cable forDeep Ten Thousand Meter Wells

Cejing jishu
In response to the challenges of high tension and ultra long signal transmission faced by cable logging in deep 10 000-meter wells, this article adopts a combination of theoretical design, data analysis, and experimental testing.
MA Jianghu, ZHANG Bingjun, ZHANG Haijun, YANG Qingjian, SHUAI Shichen, LUO Shengqiang, YOU Zhanhua, SUN Wei, JIANG Songhan   +8 more
doaj   +1 more source

Identifying gene expression signatures for risk stratification of postoperative adjuvant chemotherapy in colorectal cancer

FEBS Open Bio, EarlyView.
A novel signature integrating genome‐wide analysis with clinical factors predicts recurrence in stage II colorectal cancer and enables a new risk stratification to guide postoperative adjuvant chemotherapy. Clinical risk stratification for postoperative recurrence in patients with pathological stage II (pStage II) colorectal cancer (CRC) is essential ...
Mayuko Otomo, Keisuke Okuno, Shuichi Watanabe, Sakiko Oba, Hiroyasu Kagawa, Masanori Tokunaga, Daisuke Ban, Yusuke Kinugasa   +7 more
wiley   +1 more source

Molecular dynamics simulations of positively selected codons in FcγRI reveal novel biochemical binding properties

FEBS Open Bio, EarlyView.
Evolutionary analysis across 32 placental mammals identified positive selection at residues H148 and W149 in the immune receptor FcγR1. Ancestral reconstruction combined with molecular dynamics simulations reveals how these mutations may influence receptor structure and dynamics, providing insight into the evolution of antibody recognition and immune ...
David A. Young, Omar Arias‐Gaguancela, Fiona Gibson, Morgan Grainger, Jodie Score, Amit Nathubhai, Mauricio Cafiero, Lee Richard Machado   +7 more
wiley   +1 more source

Refinement of amino‐acid conformation vs. difference density maps in time‐resolved serial femtosecond crystallography data analysis

FEBS Open Bio, EarlyView.
The dFoCC pipeline starts with observed DED and resting‐state coordinates, which are then used to generate a library of triggered states. Correlation analysis of the calculated DED features of each candidate vs observed DED permits quantitative evaluation of candidate structural quality.
Meng Iao Fong, Yuhei Hosokawa, Lars Oliver Essen, Manuel Maestre‐Reyna   +3 more
wiley   +1 more source