Results 121 to 130 of about 2,300 (225)

Simulation Study on the Drilling of PDC Bit at Compound Drilling Condition

Shiyou jixie, 2016
The forces on the PDC bit at the bottomhole could impact the PDC bit drilling efficiency and cutter wear.The cutter-rock interactions could be more complex in compound drilling mode.A new PDC bit drilling simulation method for compound drilling based on ...
Zheng Jiawei, Kuang Yuchun, Wang Xia, Zou Ziyou, Chen Yuzhong, Yang Yingxin   +5 more
doaj  

Influence mechanism of polycrystalline diamond compact bit temperature rise based on thermo-fluid-solid coupling. [PDF]

Sci Prog, 2023
Han X, Xue L, Xu J.
europepmc   +1 more source

Удосконалення конструкцій породоруйнівного інструменту, оснащених полікристалічними алмазними різцями [PDF]

, 2012
У процесі буріння нафтових і газових свердловин долота різального типу, оснащені полікристалічними алмазами різцями (ПАР), є більш ефективними в порівнянні з алмазними та тришарошковими, однак вони володіють підвищеною енергоємністю, що обмежує їх ...
Кунцяк, Я. В.
core  

Nutritional and Fermentative Impacts of Adding Dehydrated Cashew Pseudofruit to Elephant Grass Silage

New Zealand Journal of Agricultural Research, Volume 69, Issue 1, February 2026.
The article evaluated the effect of different levels of dehydrated cashew pseudofruit (DCP; 0%, 10%, 20%, and 30% based on natural matter) on the ensiling of Cenchrus purpureus BRS Capiaçu (Elephant grass), focusing on fermentative characteristics, nutrient composition, losses, and aerobic stability.
Isadora Osório Maciel Aguiar Freitas, Antonio Leandro Chaves Gurgel, Marcos Jácome de Araújo, Tairon Pannunzio Dias‐Silva, Rafael de Souza Miranda, Sheila Vilarindo de Sousa, Romilda Rodrigues do Nascimento, Edy Vitória Fonseca Martins, Luís Carlos Vinhas Ítavo, Gelson dos Santos Difante, João Virgínio Emerenciano Neto   +10 more
wiley   +1 more source

Geometric Evolvement, Simulation, and Test of a Bionic Lateral PDC Reamer Bit Inspired by Capra sibirica Horn. [PDF]

Appl Bionics Biomech, 2022
Chen C, Yan J, Zou Y, Luo H.
europepmc   +1 more source

Mannose Oligosaccharide‐Conjugated In Situ Pore‐Forming Injectable Hydrogels for Rheumatoid Arthritis Treatment by Reprogramming Macrophage Extracellular Vesicles

Small Methods, Volume 10, Issue 3, 9 February 2026.
Design of an injectable porous hydrogel modulating macrophages and their secreted EVs for joint defect repair in the pathology of rheumatoid arthritis. a) The solution containing HA and CS‐MOS, upon mixing with a crosslinker solution, undergoes porous hydrogel formation with the escape of generated CO₂ gas.
Anan Zhang, Yifan Ma, Yutong Liu, Shiyan Dong, Michelle Najarro Torres, Betty Y.S. Kim, Changsheng Liu, Lili Sun, Yuan Yuan, Wen Jiang   +9 more
wiley   +1 more source

Evaluasi Metode Casing Drilling pada Trayek Casing 13-3/8” di Sumur Sp-23 [PDF]

, 2015
Dalam upaya meningkatkan perolehan minyak dan memperkecil biaya perencanaan,teknologi perminyakan khususnya di bidang pemboran baik berupa sumur eksplorasimaupun sumur pengembangan, telah mengalami kemajuan yang sangat pesat dan jugasangat inovatif ...
Aboekasan, W. (Widradjat), Putra, S. (Syandi)   +1 more
core  

WHO classification of skin tumours: key updates in the fifth edition

Histopathology, Volume 88, Issue 3, Page 555-568, February 2026.
This review article summarizes the key updates in the 5th edition of the WHO Classification of Skin Tumours. It provides an overview of the major changes and new entities specific to the skin section, covering areas such as epidermal, melanocytic, mesenchymal and other tumours. The 5th edition of the World Health Organization Classification of Tumours (
Gabrielle Goldman‐Lévy, Raymond Barnhill, Boris C. Bastian, Werner Kempf, David Elder, Pedram Gerami, Wayne Grayson, Dmitry Kazakov, Daniela Massi, Jane Messina, Arnaud de la Fouchardière, Alexander J. Lazar, Thomas Brenn, Brian Rous, Andrew Field, Anthony Gill, Jennelle C. Hodge, Joseph D Khoury, Katia Leite, Shahin Sayed, Puay Hoon Tan, Rosalie Elenitsas, Eduardo Calonje, Lyn M. Duncan, Liang Zhiyong, Holger Moch, Rajendra Singh, Harshima Wijesinghe, Ian Cree, Dilani Lokuhetty   +29 more
wiley   +1 more source

Synthesis and thermal properties of dense Si─Al─C─N‐based polymer‐derived ceramics

International Journal of Applied Ceramic Technology, Volume 23, Issue 1, February 2026.
Abstract In the present study, aluminum‐modified preceramic silicon polymers were synthesized via chemical modification of a commercially available organopolysilazane using an aluminum amido complex. The incorporation of aluminum into the polymer structure and its effect on ceramization behavior and processability as well as the thermal and mechanical ...
Minoo Boroojerdi, Daniela Camacho, Hergen Breitzke, Ingrit Nurak, Marc Widenmeyer, Wenjie Xie, Astrid Pundt, Gerd Buntkowsky, Ralf Riedel, Emanuel Ionescu   +9 more
wiley   +1 more source

Influence of diamond layer chamfer parameters on performance of PDC cutters

Jin'gangshi yu moliao moju gongcheng
Objectives: The precise control of diamond layer chamfer parameters has a complex influence on the comprehensive performance of PDC cutters. This control not only helps to expand ideas in PDC cutter design but also improves the overall efficiency of ...
Suhui ZHANG, Chuanliu WANG, Geng LI
doaj   +1 more source