Results 31 to 40 of about 927 (160)

A visual faulty feeder detection method for power distribution network based on spatial image generation and deep learning

IET Generation, Transmission &Distribution, Volume 17, Issue 24, Page 5430-5445, December 2023., 2023
A novel spatial domain feature expression method for the 1‐D signal is presented. It can easily convert the 1‐D electric signal into a mirrored symmetrical colorful image with less time complexity. The image shape can directly reflect the amplitude and frequency of the 1‐D signal.
Wei Guo, Yuntao Shi
wiley   +1 more source

A primary care psychoeducational group intervention for patients with depression and physical comorbidity: A qualitative study with a gender perspective

International Journal of Nursing Practice, Volume 29, Issue 6, December 2023., 2023
Abstract Objective To explore the experiences and emotions of individuals with depression and physical comorbidity within the context of psychoeducational group interventions led by primary care nurses in Catalunya (Spain). Method A psychoeducational group intervention was conducted in the first semester of 2019 with 13 primary care teams (rural/urban)
Antonia Raya‐Tena, Jaume Martín‐Royo, Mercedes Bellido‐Pérez, Gloria Sauch Valmaña, Anna Berenguera Ossó, M. Dolores Soria‐García, Sonia Ruíz‐Serrano, Norma Lacasta‐Tintorer, M. Francisca Jiménez Herrera   +8 more
wiley   +1 more source

Bearing Fault Identification Method under Small Samples and Multiple Working Conditions

Mobile Information Systems, Volume 2022, Issue 1, 2022., 2022
Aiming at the problem of the low bearing faults identification accuracy of the method based on the deep neural network under small samples and multiple working conditions, a novel bearing fault identification method combined with the coordinate delay phase space reconstruction method (CDPSR), residual network, meta‐SGD algorithm, and the AdaBoost ...
Yuhui Wu, Licai Liu, Shuqu Qian, Jianyong Tian, Praveen Kumar Reddy Maddikunta   +4 more
wiley   +1 more source

Application of Variational Mode Decomposition and Multiscale Permutation Entropy in Rolling Bearing Failure Analysis

Shock and Vibration, Volume 2022, Issue 1, 2022., 2022
The rolling bearing fault test signal has nonstationary and nonlinear characteristics. The feature extraction method based on variational mode decomposition (VMD) and permutation entropy can effectively measure the regularity of the signal and detect weak changes. Since the center frequency of the intrinsic mode function (IMF) of each fault test signal
Haorui Liu, Haijun Li, Rongyan Wang, Hengwei Zhu, Jianchen Zhang, Chengwei Fei   +5 more
wiley   +1 more source

The design of a unit sweeping gas membrane distillation: experimental study on a membrane and operating parameters

Applied Water Science, 2020
The paper presents the focuses of application in membrane processes for the desalination of brackish water or salt water using the sweeping gas membrane distillation (SGMD); at first, it is the least used configuration of MD, and the design of this ...
Mokhless Boukhriss, Med Bechir Ben Hmida, Med Ali Maatoug, Kamel Zarzoum, Riadh Marzouki, Habib Ben Bacha   +5 more
doaj   +1 more source

Klimaschonung durch Membrananwendung – Membrandestillation zur Erzeugung von pharmazeutischem Reinstwasser Climate Protection by Membrane Application – Membrane Distillation for the Production of Pharmaceutical Ultrapure Water

Chemie Ingenieur Technik, Volume 93, Issue 9, Page 1345-1351, September 2021., 2021
Die Membrandestillation ist ein alternatives Verfahren zur Aufbereitung von Wasser in pharmazeutischer Qualität. Das Verfahren wird hinsichtlich seiner Eignung und des Energieeinsatzes experimentell untersucht. Basierend auf diesen Untersuchungen wird ein Anlagenkonzept zur Minimierung des spezifischen Energieeinsatzes entwickelt.
Cornelius Nellessen, Thomas Klein, Hans‐Jürgen Rapp, Frank Rögener   +3 more
wiley   +1 more source

Experimental investigation of membrane distillation with bubble column dehumidifier system for water desalination

Case Studies in Thermal Engineering, 2022
The performance of a new integrated system of single-stage sweeping gas membrane distillation module and a bubble column dehumidifier (SGMD-BCD) was experimentally investigated.
Adel Hussein, Atia E. Khalifa, Suhaib M. Alawad, Mohamed A. Antar   +3 more
doaj   +1 more source

A Classification Algorithm of Fault Modes‐Integrated LSSVM and PSO with Parameters’ Optimization of VMD

Mathematical Problems in Engineering, Volume 2021, Issue 1, 2021., 2021
To overcome the shortcomings that the early fault characteristics of rolling bearing are not easy to be extracted and the identification accuracy is not high enough, a novel collaborative diagnosis method is presented combined with VMD and LSSVM for incipient faults of rolling bearing. First, the basic concept of VMD was introduced in detail, and then,
Yunqian Li, Darong Huang, Zixia Qin, Emilio Insfran   +3 more
wiley   +1 more source

Fault Diagnosis of Axial Piston Pump Based on Extreme‐Point Symmetric Mode Decomposition and Random Forests

Shock and Vibration, Volume 2021, Issue 1, 2021., 2021
Aiming at fault diagnosis of axial piston pumps, a new fusion method based on the extreme‐point symmetric mode decomposition method (ESMD) and random forests (RFs) was proposed. Firstly, the vibration signal of the axial piston pump was decomposed by ESMD to get several intrinsic mode functions (IMFs) and an adaptive global mean curve (AGMC) on the ...
Lei Yafei, Jiang Wanlu, Niu Hongjie, Shi Xiaodong, Yang Xukang, Moon G. Lee   +5 more
wiley   +1 more source

Energy efficiency of permeate gap and novel conductive gap membrane distillation [PDF]

, 2015
This work presents numerical modeling results and flux experiments for a novel membrane distillation configuration called conductive gap membrane distillation (CGMD), as well as permeate gap membrane distillation (PGMD).
AlMarzooqi, Faisal A., Arafat, Hassan A., Chung, Hyung Won, Lienhard, John H, Swaminathan, Jaichander, Warsinger, David Elan Martin   +5 more
core   +1 more source