Results 51 to 60 of about 6,421,048 (404)

Process Reliability Evaluation Method of Turning Large Pitch External Thread

open access: yesJournal of Harbin University of Science and Technology, 2019
:There is a great influence of machining error distribution of large pitch screw’s left and right thread surface along the axial direction on positioning and repeat positioning accuracy of press slide. Thread cutting process should have high reliability.
JIANG Bin   +4 more
doaj   +1 more source

The manufacturing and the application of polycrystalline diamond tools – A comprehensive review [PDF]

open access: yes, 2020
Advanced materials such as titanium alloys and metal matrix composites are extensively used in the aerospace industry and biomedical engineering. They are difficult to machine because of the severe abrasion and high temperature at the tool/chip and tool ...
Cuie, Wen   +4 more
core   +1 more source

Changes in Body Composition in Children and Young People Undergoing Treatment for Acute Lymphoblastic Leukemia: A Systematic Review and Meta‐Analysis

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Ongoing evidence indicates increased risk of sarcopenic obesity among children and young people (CYP) with acute lymphoblastic leukemia (ALL), often beginning early in treatment, persisting into survivorship. This review evaluates current literature on body composition in CYP with ALL during and after treatment.
Lina A. Zahed   +5 more
wiley   +1 more source

Relational Analysis for Tool Vibration and Distribution Characteristics of Processing Surface Topography

open access: yesJournal of Harbin University of Science and Technology, 2019
In order to study the influence of tool vibration on the distribution characteristics of processing surface topography along spindle direction in turning largepitch thread, the experiment of turning external thread with pitch 16mm was conducted to obtain
JIANG Bin, ZHANG Fang, LI Zhe
doaj   +1 more source

Influence of Cutting Parameters and Tool Edge Geometries on the Machinability of AISI 52100 Steel in Hard Whirling

open access: yesEngineering Transactions, 2023
The synergistic effect of prepared tool edge and cutting parameters in hard whirling is still unclear, limiting its application in producing large precision ball screws.
Shuquan SONG   +6 more
doaj   +1 more source

Refrigerated cutting tools improve machining of superalloys [PDF]

open access: yes, 1971
Freon-12 applied to tool cutting edge evaporates quickly, leaves no residue, and permits higher cutting rate than with conventional coolants.
Dudley, G. M.
core   +1 more source

Prolonged Corrected QT Interval as an Early Electrocardiographic Marker of Cyclophosphamide‐Induced Cardiotoxicity in Pediatric Hematology and Oncology Patients

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Cyclophosphamide (CY) is associated with potentially fatal cardiotoxicity, yet no electrocardiographic indices have been established for early detection of CY‐induced cardiomyopathy. This study aimed to determine whether corrected QT interval (QTc) prolongation can predict early onset of CY‐related cardiac dysfunction in pediatric ...
Junpei Kawamura   +5 more
wiley   +1 more source

Grinding efficiency improvement of hydraulic cylinders parts for mining equipment

open access: yesE3S Web of Conferences, 2017
The aim of the article is to find out ways to improve parts treatment and components of mining equipment on the example of hydraulic cylinders parts, used as pillars for mine roof supports, and other actuator mechanisms.
Korotkov Aleksandr   +4 more
doaj   +1 more source

Development of temperature statistical model when machining of aerospace alloy materials [PDF]

open access: yes, 2012
This paper presents to develop first-order models for predicting the cutting temperature for end-milling operation of Hastelloy C-22HS by using four different coated carbide cutting tools and two different cutting environments.
Bakar Rosli Abu   +4 more
core   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

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