Results 21 to 30 of about 382,831 (269)

Experimental study on the treatment of sulfuric acid waste by hollow fiber vacuum membrane distillation

open access: yesGongye shui chuli
In order to solve the problems of low separation efficiency and poor operation stability in the process of industrial sulfuric acid waste treatment, a concentration and recovery system of hollow fiber vacuum membrane distillation based on ...
ZHANG Liyi   +3 more
doaj   +1 more source

Study on Relationship between Cyclone Diameter and Treatment Capacity Based on Response Surface Method

open access: yesShiyou jixie, 2021
In the design process of liquid-solid cyclone, the size design is still in accordance with the empirical method, which has strong subjectivity and randomness, and the internal relationship between the cylinder size and the operating parameters is still ...
Liu Zhitao   +5 more
doaj  

Structural Parameter Optimization of Droplet Size Reconstruction Hydrocyclone

open access: yesShiyou jixie, 2022
The droplet size reconstruction hydrocyclone realizes the rearrangement of large and small sizes of oil droplets by means of the inlet structure, and then uses the embedded structure to efficiently separate them.
Xia Hongze   +5 more
doaj  

Key Tools and Dynamic Variation of Wellbore Pressure in Dual-gradient Drilling

open access: yesShiyou jixie, 2022
In order to solve the problem of low separation efficiency of separator in hollow sphere injected dual-gradient drilling, the dynamic variation of wellbore pressure was studied.
Zhang Ruiyao   +5 more
doaj  

Experimental study on vacuum membrane distillation system of hollow fiber coupled with mechanical vapor recompression

open access: yesGongye shui chuli
In order to solve the problems of low separation efficiency and high energy consumption in the industrial wastewater treatment, a combined system of mechanical vapor recompression and hollow fiber vacuum membrane distillation was constructed.
DENG Long   +3 more
doaj   +1 more source

The HIT Network for Children and Adolescents With CNS Tumors Facilitates Improvements of Diagnostic Assessments, Multimodal Treatments, Individual Counseling, and Research in Germany, Austria, and Switzerland

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background The HIT network was established in 2000 to create a population‐based structure aiming to improve survival rates and reduce late effects for children with central nervous system (CNS) tumors by conducting comprehensive clinical trials.
Stefan Rutkowski   +59 more
wiley   +1 more source

Criterion‐Related Validity of the Neuropsychological Quick Assessment for Screening Cognitive, Motor, and Behavioral Impairments in Patients With Pediatric Brain Tumors: An Observational Pilot Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Neuropsychological complications may impair the qualitative prognosis of patients with pediatric brain tumors. However, multifaceted evaluations cannot be conducted in all patients because they are time consuming and burdensome for patients.
Ami Tabata   +9 more
wiley   +1 more source

Separating Efficiency of Grinding Chips by Centrifugal Separator.

open access: yesJournal of the Japan Society for Precision Engineering, 1992
In this investigation, a centrifugal separator was used to separate grinding chips from grinding fluid. In order to clarify the efficiency of the centrifugal separator, separating experiments were carried out by changing grinding chips (FC, ceramics), its concentration and flow rate of the grinding fluid.
Yoshihiro Kita   +3 more
openaire   +2 more sources

Upacicalcet: A Novel Intravenous Calcimimetic Agent for Patients Undergoing Hemodialysis With Secondary Hyperparathyroidism

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Secondary hyperparathyroidism (SHPT) is a common complication in patients receiving maintenance dialysis, driven by calcium and phosphate metabolism disturbances. Calcimimetics are central to the management of SHPT by enhancing calcium‐sensing receptor sensitivity and reducing parathyroid hormone secretion.
Fumihiko Koiwa   +3 more
wiley   +1 more source

Structural Optimization Design of Downhole Gas-Liquid Separator Based on Orthogonal Experiment

open access: yesShiyou jixie
To address the issue of low separation efficiency in downhole helical gas-liquid separator during the production of gas-rich wells (with gas content of 30%~50%), based on gas-liquid two-phase flow theory, numerical simulation method was used to build a ...
Lian Zhanghua   +4 more
doaj   +1 more source

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