Results 101 to 110 of about 166,367,160 (262)

Deindustrialization, Reindustrialization, and the Real Exchange Rate [PDF]

This paper models an economy in which it is costly to move resources between the tradeable and nontradeable sectors. The economy is subject to capital flows that are unpredictable and are perceived as having only limited persistence. The model shows that
Paul R. Krugman
core  

ACCURATE PREDICTION OF DRILL BIT PENETRATION RATE IN ROCK USING SUPERVISED MACHINE LEARNING TECHNIQUES BASE ON LABORATORY TEST DATA

Rudarsko-geološko-naftni Zbornik
Knowing the rate of penetration of a drill bit in rocks is among the most important parameters in their behaviour measurement. However, the direct measurement of ROP in rocks is a high-cost and time-intensive process.
Shahrokh Khosravimanesh, Akbar Esmaeilzadeh, Masoud Akhyani, Reza Mikaeil, Mojtaba Mokhtarian Asl   +4 more
doaj   +1 more source

Prediction for Rate of Penetration Based on PCA-BP Algorithm

Shiyou jixie, 2023
Rate of penetration(ROP)is an important index to measure drilling efficiency.Accurate prediction of ROP plays an important role in improving drilling efficiency and reducing costs,but the commonly used ROP equation prediction model has difficulties in ...
Tang Ming, Wang Hanchang, He Shiming, Zhang Guangfu, Kong Linghao   +4 more
doaj  

Autophagy and mitophagy in pancreatic β‐cell homeostasis and their involvement in diabetes pathophysiology

FEBS Letters, EarlyView.
This review focuses on the role of autophagy and mitophagy in maintaining pancreatic β‐cell function and homeostasis. We discuss how genetic defects affecting these pathways contribute to the development of type 1, type 2, monogenic, and gestational diabetes. We further explore their potential as therapeutic targets. Created in BioRender.
Yunkyeong Lee, Mingming Tong, Anna L. Gloyn   +2 more
wiley   +1 more source

Modelling rate of penetration in drilling operations using RBF, MLP, LSSVM, and DT models. [PDF]

Sci Rep, 2022
Riazi M, Mehrjoo H, Nakhaei R, Jalalifar H, Shateri M, Riazi M, Ostadhassan M, Hemmati-Sarapardeh A.   +7 more
europepmc   +1 more source

TRADE LIBERALIZATION, THE EXCHANGE RATE AND JOB AND WORKER FLOWS IN BRAZIL [PDF]

Over the 1990's Brazil experienced a massive trade liberalization and wide variation in the real exchange rate. At the same time, employment growth was small and in manufacturing there was a significant reduction in total manufacturing.
André Souza, Luciana Servo, Eduardo Pontual Ribeiro, Carlos H. Corseuil, Brunu Amorim, Daniel Santos, Paulo Furtado   +6 more
core  

Emerging experimental and computational methods for studying redox‐regulated structural transitions

FEBS Letters, EarlyView.
Redox reactions can reshape proteins and alter how they behave in cells, with important consequences for health and disease. This review explores emerging experimental and computational approaches for discovering these redox‐sensitive protein switches, revealing their structural effects, and predicting their behavior, opening new opportunities to ...
Tasneem Rass, Dana Reichmann, Gábor Erdős   +2 more
wiley   +1 more source

Synergistic perspectives—How single‐molecule biophysics complement biochemical understanding

FEBS Letters, EarlyView.
In this review, we discuss how ensemble biochemistry and single‐molecule approaches are complementary, outline commonly used single‐molecule techniques, and illustrate their relevance through two representative case studies: chromatin organization by SMC complexes and pathway choice during DNA double‐strand break repair.
Sara De Bragança, Eline L. Jansen, Jorine M. Eeftens   +2 more
wiley   +1 more source

EXPERIMENTAL INVESTIGATION OF THE EFFECTS OF ROTATIONAL SPEED AND WEIGHT ON BIT ON DRILLSTRING VIBRATIONS, TORQUE AND RATE OF PENETRATION [PDF]

, 2017
Experimental investigation was carried out on an automated drilling rig fabricated for the Drillbotics competition. The effects of rotational speed and weight on bit were observed on drillstring vibrations, torque and rate of penetration for two ...
Vimlesh, Bavadiya
core  

Rate of Penetration Prediction Using an ExtraTrees Model Optimized by an Improved Harris Hawks Algorithm

Applied Sciences
Rate of penetration (ROP) is a key indicator of drilling efficiency, governed by nonlinear coupling among mechanical, hydraulic, drilling fluid, and formation factors.
Xi Cui, Dachuan Liang, Daoxiong Li, Chen Yang   +3 more
doaj   +1 more source