Results 21 to 30 of about 3,047 (185)

Estimation Model of Cucumber Leaf Wetness Duration Considering the Spatial Heterogeneity of Solar Greenhouse

智慧农业, 2020
Leaf wetness duration (LWD) is one of the important input variables of plant disease model, which is related to the infection of many leaf pathogens and affects the pathogen infection and developmental rate.
LIU Jian, REN Aixin, LIU Ran, JI Tao, LIU Huiying, LI Ming   +5 more
doaj   +1 more source

Current Status and Development Trend of Look-Ahead While Drilling Technology

Shiyou jixie
As one of the key emerging technologies in the field of logging while drilling （LWD）， the look-ahead wile drilling （LAWD） technology can perform real-time detection on undrilled formation in front of the bit， effectively reducing the risk of drilling ...
Yan Sen, Gao Wenkai, Zhang Xiaohui, Wang Jiajin, Zhang Chunhua, Jia Hengtian   +5 more
doaj   +1 more source

Spatiotemporal Monitoring of Large Woody Debris Mobility and Distribution Using Unmanned Aerial Vehicles Along the Oshirarika River, Northern Japan

Drones
Large woody debris (LWD) in river systems serves beneficial ecological functions and poses potential hazards during flood events. Managing LWD requires a balanced understanding of its dynamics. This study employed unmanned aerial vehicles (UAVs) for high-
Yasutaka Nakata, Masato Hayamizu, Nobuo Ishiyama   +2 more
doaj   +1 more source

Stem Cell Differentiation Disperses Transcriptional Clusters via a Conserved Surface‐Condensate Trajectory

Advanced Science, EarlyView.
Stem cell differentiation follows a conserved surface condensate trajectory: H3K27ac super enhancers nucleate large RNA polymerase II clusters that grow and unfold before transcriptional activity disperses them. This work reveals how biophysical forces at enhancer surfaces dynamically build and dismantle stem cell transcription hubs, reshaping cell ...
Tim Klingberg, Irina Wachter, Agnieszka Pancholi, Matthias Akyel, Yomna Gohar, Priya Kumar, Ana Miguel Fernandes, Yuzhi Bao, Alica Schmidt‐Heydt, Marcel Piepers, Alicia Günthel, Marcel Sobucki, Elisa Kämmer, Süheyla Eroğlu‐Kayıkçı, Stephan Allgeier, Sylvia Erhardt, Vasily Zaburdaev, Carmelo Ferrai, Lennart Hilbert   +18 more
wiley   +1 more source

Simulating on Neutron Porosity Response Based on D-T Source in Logging While Drilling

Journal of Isotopes
Neutron porosity logging is indispensable for hydrocarbon reserve estimation，reservoir evaluation，and development planning. The use of controllable D-T neutron sources in logging-while-drilling (LWD) offers a safer，more stable，and environmentally ...
Xili XI, Qian CHEN, Feng ZHANG, Luyu ZHONG   +3 more
doaj   +1 more source

A lossless compression method for logging data while drilling

Systems Science & Control Engineering, 2021
Mud pulse transmission technology is widely used in logging while drilling (LWD), while its low data transmission efficiency has restricted the development of LWD technology for a long time. In order to improve the equivalent data transmission efficiency
Shan Song, Taiwei Lian, Wei Liu, Zhengbing Zhang, Mingzhang Luo, Aiping Wu   +5 more
doaj   +1 more source

Experimental-mechanistic analysis of pavement base deflections measured with light weight deflectometer

Journal of Traffic and Transportation Engineering (English ed. Online), 2023
An extensive experimental-mechanistic study was conducted to reveal the relationship between the light weight deflectometer (LWD) measured deflections and the degree of compaction of pavement base materials.
Yao Yao, Shuo Li, Guangyuan Zhao, Yi Jiang   +3 more
doaj   +1 more source

Placental Site Trophoblastic Tumor Acquires Immune Functions by Incorporating Host Maternal Genes

Advanced Science, EarlyView.
PSTT cells, through cell fusion with B cells, incorporate abundant non‐inherited maternal genes that are detectable by DNIMA. These hybrid cells acquire immunotherapy‐resistant genetic changes and increase the expression of B cell‐derived immune‐related molecules such as Ig, HLA, LILRB, SIGLEC10, and so on, creating an immunotolerant environment around
Kyosuke Kagami, Masanori Ono, Yasunari Mizumoto, Tatsuhito Kanda, Takashi Iizuka, Takiko Daikoku, Shin‐ichi Horike, Akira Hattori, Akihito Horie, Sachiko Minamiguchi, Tomoko Fujiwara, Kazuyoshi Hosomichi, Atsushi Tajima, Hirokazu Usui, Kaoru Abiko, Hiroshi Fujiwara   +15 more
wiley   +1 more source

Airflow Dynamics over a Beach and Foredune System with Large Woody Debris

Geosciences, 2018
Airflow dynamics over beach-foredune systems can be complex. Although a great deal is known about the effects of topographic forcing and vegetation cover on wind-field modification, the role of large woody debris (LWD) as a roughness element and modifier
Michael J. Grilliot, Ian J. Walker, Bernard O. Bauer   +2 more
doaj   +1 more source

In Situ Reconstructed Crystalline–Amorphous CuNi Nanotubes Unifying Activity and Stability for Oxygen Evolution

Advanced Science, EarlyView.
Controlled electrochemical reconstruction creates a crystalline–amorphous CuNi nanotube that unifies catalytic activity and durability for alkaline oxygen evolution. The conductive metallic core and active amorphous oxide shell work synergistically to deliver low overpotential and exceptional stability exceeding 1000 h, offering a new strategy for ...
Shi‐Yu Zhu, Han Gao, Meng Li, Ling‐Rui Wang, Tian‐Yu Xia, Wei‐Di Liu, Xiao‐Lei Shi, Hai‐Zhong Guo, Zhi‐Gang Chen   +8 more
wiley   +1 more source