Results 51 to 60 of about 1,008,669 (307)
Frequency dependence of fatigue life of aluminium wires for power modules
Nihon Kikai Gakkai ronbunshuIn order to improve the accuracy of fatigue life predictions for power modules under future operating conditions, fully-reversed cyclic bending test method was developed for aluminum wires with a diameter of 0.4 mm.
Kisho ASHIDA +3 more
doaj +1 more source
Recent Progress in Transient Liquid Phase and Wire Bonding Technologies for Power Electronics
Metals, 2020 Transient liquid phase (TLP) bonding is a novel bonding process for the joining of metallic and ceramic materials using an interlayer. TLP bonding is particularly crucial for the joining of the semiconductor chips with expensive die-attached materials ...
Hyejun Kang +2 more
doaj +1 more source
Molecular Oncology, EarlyView.Combining PTEN protein assessment and transcriptomic profiling of prostate tumors, we uncovered a network enriched in senescence and extracellular matrix (ECM) programs associated with PTEN loss and conserved in a mouse model. We show that PTEN‐deficient cells trigger paracrine remodeling of the surrounding stroma and this information could help ...
Ivana Rondon‐Lorefice +16 more
wiley +1 more source
Power series rings and projectivity
, 2005 We show that a formal power series ring $A[[X]]$ over a noetherian ring $A$ is not a projective module unless $A$ is artinian. However, if $(A,{\mathfrak m})$ is local, then $A[[X]]$ behaves like a projective module in the sense that $Ext^p_A(A[[X]], M ...
Buchweitz, R. -O., Flenner, H.
core +3 more sources
Preventing Space Charge Accumulation by Incorporating Electrets
Advanced Materials Interfaces, 2023 Space charge accumulates near electrodes in insulating materials under high voltage direct current. Electric stress created by charge accumulation distorts electric field, reduces the remaining useful life of insulating materials, and decreases partial ...
Pradip Chandra Saha +3 more
doaj +1 more source
Power-Serieswise McCoy Modules [PDF]
Mathematical Problems in Engineering, 2018 Extending the notion of McCoy modules and power-serieswise Armendariz modules, we introduce the concept of power-serieswise McCoy modules. Various basic properties of these modules are discussed and many illustrative examples are provided. Moreover, power-serieswise McCoy modules are used to obtain results on some polynomial extensions and matrix ...
openaire +1 more source
Molecular Oncology, EarlyView.Etoposide induces DNA damage, activating p53‐dependent apoptosis via caspase‐3/7, which cleaves PARP1. Dammarenediol II enhances this apoptotic pathway by suppressing O‐GlcNAc transferase activity, further decreasing O‐GlcNAcylation. The reduction in O‐GlcNAc levels boosts p53‐driven apoptosis and influences the Akt/GSK3β/mTOR signaling pathway ...
Jaehoon Lee +8 more
wiley +1 more source
Microwave system performance summary [PDF]
, 1980 The design of the microwave system for the solar power satellite is described. Design modifications recommended include changes in phase control to the power module level, a reduction in allowable amplitude jitter, the use of metal matrix waveguides, and
Arndt, G. D., Nalos, E. J.
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Development and Field Test of Formation Fluid Sampling Tool While Drilling
Shiyou jixie, 2022 In order to solve the problems that the cable-type formation fluid sampler(FFS)is difficult to run in highly deviated wells,and the near-wellbore area is soaked and contaminated by drilling fluid filtrate for a long time,a set of formation fluid sampling
Chen Zhongshuai +5 more
doaj
Innovative Technology for Self‐Powered Sensors: Triboelectric Nanogenerators
Advanced Sensor Research, 2023 Internet of Things and wearable technology's quick development have opened up a vast market for sensor systems. However, typical sensors' external power supplies' short lifespan and expensive maintenance restrict them from being used more widely ...
Nannan Wang +4 more
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