Survival and weak chaos

Survival analysis in biology and reliability theory in engineering concern the dynamical functioning of bio/electro/mechanical units. Here we incorporate effects of chaotic dynamics into the classical theory. Dynamical systems theory now distinguishes strong and weak chaos. Strong chaos generates Type II survivorship curves entirely as a result of the internal operation of the system, without any age-independent, external, random forces of mortality. Weak chaos exhibits (a) intermittency and (b) Type III survivorship, defined as a decreasingper capitamortality rate: engineering explicitly defines this pattern of decreasing hazard as ‘infant mortality’. Weak chaos generates two phenomena from the normal functioning of thesamesystem. First, infant mortality—sensuengineering—without any external explanatory factors, such as manufacturing defects, which is followed by increased average longevity of survivors. Second, sudden failure of units during their normal period of operation, before the onset of age-dependent mortality arising from senescence. The relevance of these phenomena encompasses, for example: no-fault-found failure of electronic devices; high rates of human early spontaneous miscarriage/abortion; runaway pacemakers; sudden cardiac death in young adults; bipolar disorder; and epilepsy.

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Identification of age-dependent transition zone in the use of internet / electronic devices is important for healthcare communication in cancer patients

Journal of Geriatric Oncology ◽

10.1016/j.jgo.2012.10.111 ◽

2012 ◽

Vol 3 ◽

pp. S90-S91

Author(s):

A. Saied ◽

N.J. Espat ◽

S.J. Sherry ◽

D. Castricone ◽

K. Perry ◽

...

Keyword(s):

Cancer Patients ◽

Transition Zone ◽

Electronic Devices ◽

Age Dependent ◽

Healthcare Communication ◽

Use Of Internet

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Assessment of MOV Deterioration under Energized Conditions

Energies ◽

10.3390/en13154018 ◽

2020 ◽

Vol 13 (15) ◽

pp. 4018

Author(s):

Sung-Wook Kim ◽

Nam-Hoon Kim ◽

Gyung-suk Kil

Keyword(s):

Short Circuit ◽

Electronic Devices ◽

Leakage Currents ◽

Manufacturing Defects ◽

Accelerated Degradation ◽

Ground Fault ◽

Voltage Variation ◽

Reliable Assessment ◽

Different Types ◽

Surge Current

Metal oxide varistors (MOVs) are widely used to protect electrical and electronic devices that are very vulnerable to surges due to the low insulation level of the equipment. MOVs deteriorate gradually due to manufacturing defects, mechanical and thermal stress, or repeated protective operations against surges. These defects result in the thermal runaway of MOV and finally lead to the explosion and electric fire of electrical and electronic devices due to a short circuit and a line-to-ground fault. Therefore, the reliable assessment of the condition of MOV deterioration is required for electrical and electronic equipment. However, when most accelerated degradation tests for the MOV have been performed to date, an 8/20 μs standard surge current is applied under de-energized conditions, which is unlike the actual operating environment. In this study, a surge generator was designed to apply a surge current to MOVs to monitor their deterioration. Three different types of leakage currents were measured to analyze the change rates of their electrical characteristics of MOVs by comparing them with the reference voltage variation. Furthermore, the condition assessment of MOV deterioration under energized and de-energized conditions was investigated.

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INTENSI AKTIVITAS DAN PERJALANAN MASYARAKAT PADA MASA ADAPTASI KEBIASAAN BARU BERDASARKAN SURVEI DI MASA PANDEMI COVID-19

Jurnal Transportasi ◽

10.26593/jtrans.v21i1.4828.45-54 ◽

2021 ◽

Vol 21 (1) ◽

pp. 45-54

Author(s):

Muhamad Rizki ◽

Andrean Maulana ◽

Dwi Prasetyanto ◽

Barkah Wahyu Widianto

Keyword(s):

Electronic Devices ◽

Travel Patterns ◽

New Normal ◽

Indonesian Government ◽

Normal Period ◽

Online Activities ◽

Positive Effect

Abstract After more than 3 months of implementing mobility restrictions, in response to the Covid-19 pandemic in Indonesia, the Indonesian Government will ease these restrictions towards the New Normal period. With these changes, the question arises about how the activity-travel in the New Normal period will be. This study aims to understand the effect of changing experiences during a pandemic on individual intentions in changing travel patterns and online activities during the New Normal period. The results of distributing questionnaires, which were conducted online, were used to support the analysis carried out. This study shows that there is a reduction in the frequency of trips and activities during the pandemic and there is an intention to make adjustments to the number of travel and activities during the New Normal period. An increase in travel activity was found among young travelers and workers. The adaptation of electronic devices during the pandemic has a positive effect on the intention of online activities during the New Normal, so that it has the potential to increase online activities continuously after the New Normal period. Keywords: Covid-19 pandemic; mobility restrictions; travel patterns; new normal. Abstrak Setelah lebih dari 3 bulan penerapan pembatasan mobilitas, sebagai respon terhadap pandemi Covid-19 di Indonesia, Pemerintah Indonesia akan melakukan pelonggaran pembatasan tersebut menuju masa Adaptasi Kebiasaan Baru. Dengan perubahan tersebut, muncul pertanyaan tentang bagaimana perjalanan-aktivitas pada periode Adaptasi Kebiasaan Baru tersebut. Penelitian ini bertujuan untuk memahami pengaruh perubahan pengalaman selama pandemi terhadap niat individu dalam mengubah pola perjalanan dan aktivitas online selama periode Adaptasi Kebiasaan Baru. Hasil penyebaran kuesioner, yang dilakukan secara online, digunakan untuk mendukung analisis yang dilakukan. Studi ini menunjukkan adanya pengurangan frekuensi perjalanan dan aktivitas pada masa pandemi dan terdapat intensi untuk melakukan penyesuaian jumlah perjalanan dan aktivitas saat periode Adaptasi Kebiasaan Baru. Peningkatan aktivitas perjalanan ditemukan pada pelaku perjalanan muda dan pekerja. Adaptasi perangkat elektronik pada saat pandemi berpengaruh positif terhadap intensi aktivitas online saat Adaptasi Kebiasaan Baru, sehingga berpotensi meningkatkan aktivitas online secara menerus setelah periode Adaptasi Kebiasaan Baru. Kata-kata kunci: pandemi Covid-19; pembatasan mobilitas; pola perjalanan; adaptasi kebiasaan baru.

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Mind control of a distant electronic device: A proof-of-concept pre-registered study

10.31234/osf.io/s7uad ◽

2019 ◽

Author(s):

Patrizio Tressoldi ◽

Luciano Pederzoli ◽

Elena Prati ◽

Luca Semenzato

Keyword(s):

Random Number ◽

Electronic Device ◽

Electronic Devices ◽

Random Number Generator ◽

Number Generator ◽

Proof Of Concept ◽

Normal Functioning ◽

Adult Participants ◽

Three Samples ◽

Mind Control

This study was aimed at verifying the possibility of mentally in!uencing from a distance an electronic device based on a True Random Number Generator (TRNG). Thirteen adult participants contributed to 100 trials, each comprised three samples of data each of 15 minutes’ duration: one for pre-mental interaction, one for mental interaction, and one for post-mental interaction. For each of these three samples, at the end of each minute, the data sequence generated by the random number generator was analyzed with the Frequency and Runs tests in order to determine if there were any changes in the randomness of the sequence. A further 100 trials of three samples each of the same duration were collected during normal functioning of the device, as a control. The only evidence of an e"ect of distant mental interaction is an increase of approximately 50%, with respect to control data, of the number of samples within which the pre-determined statistical threshold for the detection of a reduction of the randomness was surpassed in both tests. Although the e"ect of distant mental interaction is still weak, we believe that the results of this study represent a proof-of-concept for the construction of electronic devices susceptible to distant mental in!uence.

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Effects of Hyperoxia on Lung Utrastructure

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100067121 ◽

1970 ◽

Vol 28 ◽

pp. 26-27

Author(s):

Gladys Harrison

Keyword(s):

Central Nervous System ◽

Nervous System ◽

Light Microscopy ◽

Oxygen Effects ◽

Age Dependent ◽

The Central Nervous System ◽

The Subject ◽

Space Age ◽

Alveolar Septa ◽

Extensive Damage

With the advent of the space age and the need to determine the requirements for a space cabin atmosphere, oxygen effects came into increased importance, even though these effects have been the subject of continuous research for many years. In fact, Priestly initiated oxygen research when in 1775 he published his results of isolating oxygen and described the effects of breathing it on himself and two mice, the only creatures to have had the “privilege” of breathing this “pure air”.Early studies had demonstrated the central nervous system effects at pressures above one atmosphere. Light microscopy revealed extensive damage to the lungs at one atmosphere. These changes which included perivascular and peribronchial edema, focal hemorrhage, rupture of the alveolar septa, and widespread edema, resulted in death of the animal in less than one week. The severity of the symptoms differed between species and was age dependent, with young animals being more resistant.

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Atom-probe analysis of the solid-liquid interface

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100139755 ◽

1995 ◽

Vol 53 ◽

pp. 676-677

Author(s):

J.A. Panitz

Keyword(s):

Molecular Level ◽

Selective Adsorption ◽

Electronic Devices ◽

Atom Probe ◽

Chemical Agent ◽

Hostile Environment ◽

Solid Interface ◽

Solid Liquid Interface ◽

Solid Liquid ◽

Chemically Selective

The first few atomic layers of a solid can form a barrier between its interior and an often hostile environment. Although adsorption at the vacuum-solid interface has been studied in great detail, little is known about adsorption at the liquid-solid interface. Adsorption at a liquid-solid interface is of intrinsic interest, and is of technological importance because it provides a way to coat a surface with monolayer or multilayer structures. A pinhole free monolayer (with a reasonable dielectric constant) could lead to the development of nanoscale capacitors with unique characteristics and lithographic resists that surpass the resolution of their conventional counterparts. Chemically selective adsorption is of particular interest because it can be used to passivate a surface from external modification or change the wear and the lubrication properties of a surface to reflect new and useful properties. Immunochemical adsorption could be used to fabricate novel molecular electronic devices or to construct small, “smart”, unobtrusive sensors with the potential to detect a wide variety of preselected species at the molecular level. These might include a particular carcinogen in the environment, a specific type of explosive, a chemical agent, a virus, or even a tumor in the human body.

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Study of dislocation loops in Arsenic-Rich as-grown GaAs

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100126548 ◽

1987 ◽

Vol 45 ◽

pp. 350-351

Author(s):

Byung-Teak Lee

Keyword(s):

Point Defects ◽

Electronic Devices ◽

Arsenic Concentration ◽

Stoichiometric Compound ◽

Dislocation Loops ◽

Gaas Crystal ◽

Ion Milling ◽

Transmission Electron ◽

Arsenic Source ◽

High Arsenic

Grown-in dislocations in GaAs have been a major obstacle in utilizing this material for the potential electronic devices. Although it has been proposed in many reports that supersaturation of point defects can generate dislocation loops in growing crystals and can be a main formation mechanism of grown-in dislocations, there are very few reports on either the observation or the structural analysis of the stoichiometry-generated loops. In this work, dislocation loops in an arsenic-rich GaAs crystal have been studied by transmission electron microscopy.The single crystal with high arsenic concentration was grown using the Horizontal Bridgman method. The arsenic source temperature during the crystal growth was about 630°C whereas 617±1°C is normally believed to be optimum one to grow a stoichiometric compound. Samples with various orientations were prepared either by chemical thinning or ion milling and examined in both a JEOL JEM 200CX and a Siemens Elmiskop 102.

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