Results 31 to 40 of about 141,345 (280)

Migration and distribution of complex fracture proppant in shale reservoir volume fracturing

Natural Gas Industry B, 2018
In this paper, a large-scale experimental system was established to identify the migration and distribution laws of complex fracture proppant in shale reservoir volume fracturing.
Linhua Pan, Ye Zhang, Lijun Cheng, Zhaohui Lu, Yuanbo Kang, Pei He, Bingqiang Dong   +6 more
doaj   +1 more source

Explorable and economically attractive mineral deposits in the Siberian and Far Eastern Federal Districts of Russia [PDF]

, 2018
Purpose. Selection of the most explorable mineral deposits in the Siberian and Far Eastern Federal Districts of the Russian Federation as investment projects. Methods.
Boyarko, G
core   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Analysis of the spatiotemporal evolution and driving factors of land use change in Jinan springs area of the Northern Karst region, China from 1986 to 2022

Discover Applied Sciences
The Jinan Spring Area serves as a representative of northern China’s karst regions. To explore the land-use change characteristics and their driving mechanisms, six periods of Landsat series land-use data were collected for the years 1986, 1995, 2000 ...
Shenting Gang, Xiaoyun Kong, Tao Jia, Minghui Lv, Lixia Li   +4 more
doaj   +1 more source

Hydrochemical characteristics and genesis analysis of hot springs in the Changtan area, Chongqing

Carsologica Sinica
This study takes the natural and artificially drilled hot springs as the research objects located in the northwest wing of the Fangdoushan anticline in Changtan Town, Wanzhou District, Chongqing City.
Cao LIU, Gaohai XU, Delong LI, Fuheng LUO, Haifeng XU, Cheng CHEN, Jianshu ZOU   +6 more
doaj   +1 more source

Design of a Full-Ocean-Depth Macroorganism Pressure-Retaining Sampler and Fluid Simulation of the Sampling Process

Journal of Marine Science and Engineering, 2022
Hadal seafloor organisms live under ultra-high pressure, in low temperatures, and other environments for a long time, which puts higher requirements on the structural design of deep-sea biological samplers.
Guangping Liu, Yongping Jin, Youduo Peng, Deshun Liu, Buyan Wan   +4 more
doaj   +1 more source

Earth science education in South Australia: Evolving with the resources boom [PDF]

, 2007
Copyright © 2007 AusIMM The document attached has been archived with permission from the publisher.Andreas Schmidt Mumm MAusIMM and Alan Collins, Geology and Geophysics, School of Earth and Environmental Sciences, The University of Adelaidehttp://direct ...
Collins, A., Schmidt Mumm, A.
core   +1 more source

Mineral Exploration Funds [PDF]

, 1968
While independent mineral operators have traditionally been confronted with a scarcity of risk capital for mineral development, willing investors have often experienced equal difficulty in locating responsible mineral operations in which to invest.
Bloomenthal, Harold S.
core   +2 more sources

Multi‐omics and low‐input proteomics profiling reveals dynamic regulation driving pluripotency initiation in early mouse embryos

FEBS Open Bio, EarlyView.
Mouse pre‐implantation development involves a transition from totipotency to pluripotency. Integrating transcriptomics, epigenetic profiling, low‐input proteomics and functional assays, we show that eight‐cell embryos retain residual totipotency features, whereas cytoskeletal remodeling regulated by the ubiquitin‐proteasome system drives progression ...
Wanqiong Li, Xi Xiao, Lingbin Qi, Chanyi Li, Sirui Song, Jiaying Qin, Zhigang Xue, Jinfeng Xue, Huaifang Li   +8 more
wiley   +1 more source

Analysis on ecological characteristics of Mississippian coral reefs in Langping, Guangxi

Scientific Reports, 2022
Several Late Viséan-Serpukhovian coral reefs were identified in Langping, Tianlin. They provided an opportunity to investigate paleo-environments suitable for the development of reef-building communities and the construction of coral reefs in Langping ...
Dayong Yang, Honglun Chang, Xiao Liu, Peng Wan, Liming Shen   +4 more
doaj   +1 more source