A Novel System for Fine Particle Concentration Measurement

2014 ◽  
Vol 901 ◽  
pp. 29-33
Author(s):  
Ming Ru Guo ◽  
Wen Zhong Lou ◽  
Li Na Ren ◽  
Yu Fei Lu
Keyword(s):  
Fine Particle ◽  
Particle Concentration ◽  
Fine Particles ◽  
Ultrasonic Attenuation ◽  
Ultrasonic Transducer ◽  
Dust Cloud ◽  
Measuring System ◽  
The Novel ◽  
The Public ◽  
Measuring Devices

It is important to monitoring the fine particles (PM2.5) in atmosphere as it threatens the public health all over the world. But the existing concentration measuring devices have shortcomings in speed and range. A novel fine particle concentration measuring system based on the ultrasonic attenuation was designed in this paper, which could help to solve the problem. Firstly the mechanism of ultrasonic attenuation in dust cloud was studied to verify the relationship between the concentration and the ultrasonic attenuation. Then the novel concentration measuring system was designed. The micro ultrasonic transducer array was introduced into the system, so the system can be sensitive as well as small. Finally, experiment was conducted to check the performance of this measuring system, and the results show that it could realize measurement quickly.

Application of Ceramic Membrane Technology in Tungsten Fine Particle Concentration Process

2014 ◽  
Vol 692 ◽  
pp. 191-199
Author(s):  
Wan Fu Huang ◽  
Xiao Feng Wang ◽  
Xin Dong Li ◽  
Si Ming Yan
Keyword(s):  
Fine Particle ◽  
Particle Concentration ◽  
Fine Particles ◽  
Ceramic Membrane ◽  
Membrane Technology ◽  
Factors Affecting ◽  
Membrane Flux ◽  
Concentration Test ◽  
Optimal Effect ◽  
Membrane Concentration

This study used ceramic membrane technology to concentrate tungsten fine particles for its inefficient recycling issue. Factors affecting the membrane concentration test were discussed, and the results show that: under the feed flow of 7000 mL/min, concentration time of 3 hours, and concentration liquid flow of 500 mL/min, it is the optimal effect of ceramic membrane concentration tungsten fine particle, which the interception rate reaches more than 99%, the membrane permeation flux can be nearly reach 470mL/(min×1099cm2) above, and concentrate concentration can be basically stable at around 29% . Ceramic membrane flux recovery rate can be as high as 93% by 7 minutes backwashing firstly and then 2 minutes forward cleaning.

scholarly journals Proposal of methodology and test protocol for evaluating and qualifying pH measuring devices

2006 ◽  
Vol 49 (spe) ◽  
pp. 25-30 ◽  
Author(s):  
Niza Helena de Almeida ◽  
Percy Nohama
Keyword(s):  
Public Health ◽  
Field Research ◽  
Measuring System ◽  
Test Protocol ◽  
Ph Measurements ◽  
Iso 17025 ◽  
The Public ◽  
Measuring Devices ◽  
Health Area ◽  
Definition Of

We present a proposal for evaluating and qualifying pH measuring devices based on the requirements of relevant standards. The proposal presented is based on ASTM E70, NBR 7353, JIS Z 8805, BS 3145, DIN 19268, NBR ISO 17025 and other standards, as well as the results of field research carried out in conjunction with professionals performing pH measurements in public health laboratories. Evaluation is performed by inspection of a form which records data from the measuring system. The form gives acceptable variations in the parameters being tested and allows a conclusion to be reached regarding acceptability of the system. Using the proposed protocol allows definition of suitable analysis criteria, while taking into account the influence pH measurement is subject and the need for correct results. This is particularly true when analyzing products already on the market, thus underlining the protocol's importance to the public health area.

Coronavirus: Towards controlling of the pandemic - Indian scenario

2020 ◽  
Vol 11 (SPL1) ◽  
pp. 462-468
Author(s):  
Latika kothari ◽  
Sanskruti Wadatkar ◽  
Roshni Taori ◽  
Pavan Bajaj ◽  
Diksha Agrawal
Keyword(s):  
Control Measures ◽  
The Novel ◽  
Medical Treatments ◽  
Health Crisis ◽  
The Public ◽  
Infection Control Measures ◽  
The Social ◽  
Asking Questions ◽  
The Government ◽  
Novel Coronavirus

Coronavirus disease 2019 (COVID-19) is a communicable infection caused by the novel coronavirus resulting in severe acute respiratory syndrome coronavirus 2 (SARS-CoV). It was recognized to be a health crisis for the general population of international concern on 30th January 2020 and conceded as a pandemic on 11th March 2020. India is taking various measures to fight this invisible enemy by adopting different strategies and policies. To stop the COVID-19 from spreading, the Home Affairs Ministry and the health ministry, of India, has issued the nCoV 19 guidelines on travel. Screening for COVID-19 by asking questions about any symptoms, recent travel history, and exposure. India has been trying to get testing kits available. The government of India has enforced various laws like the social distancing, Janata curfew, strict lockdowns, screening door to door to control the spread of novel coronavirus. In this pandemic, innovative medical treatments are being explored, and a proper vaccine is being hunted to deal with the situation. Infection control measures are necessary to prevent the virus from further spreading and to help control the current situation. Thus, this review illustrates and explains the criteria provided by the government of India to the awareness of the public to prevent the spread of COVID-19.

High cytokine levels and cytokine storm in the novel coronavirus infection

2021 ◽  
pp. 38-47
Author(s):  
Maksim Leonidovich Maksimov ◽  
Albina Ayratovna Zvegintseva ◽  
Lyudmila Yurievna Kulagina ◽  
Albina Zainutdinovna Nigmedzyanova ◽  
Elvina Ramisovna Kadyseva
Keyword(s):  
Peripheral Blood ◽  
High Frequency ◽  
The Novel ◽  
Cytokine Storm ◽  
The Public ◽  
Systemic Inflammatory Reaction ◽  
Scientific World ◽  
Cytokine Levels ◽  
Coronavirus Infection ◽  
Novel Coronavirus

A review article is based on current foreign sources. The level of cytokines in the peripheral blood can be increased in many diseases, but in some cases there may be an excess of their normal concentration in tens, hundreds or more times with the development of a peculiar clinical picture, which is based on a systemic inflammatory reaction. In the literature this condition has received the figurative name «cytokine storm», which highlights an extremely violent reaction of the immune system with an unknown (often unfavorable) outcome. Close attention of the scientific world and the public to the problem of extremely high levels of cytokines in the peripheral blood (hypercytokinemia) was drawn due to the high frequency of the cytokine storm in the novel coronavirus infection.

scholarly journals Monitoring of220Rn Concentrations in Buildings of Kufa Technical Institute, Iraq

2015 ◽  
Vol 2015 ◽  
pp. 1-5 ◽  
Author(s):  
Ali Abid Abojassim Al-Hamidawi
Keyword(s):  
Dose Rate ◽  
Half Life ◽  
Annual Effective Dose ◽  
Measuring System ◽  
Technical Institute ◽  
The Public ◽  
Effective Doses ◽  
Public Exposure ◽  
Effective Dose Rate ◽  
Annual Effective Dose Rate

This paper presents the measurements of thoron and the progeny in fifteen buildings in Kufa Technical Institute, Iraq, from June 2015 to April 2015 using RAD-7 detectors. Also, annual effective dose rate was calculated in all buildings under study. The thoron concentration varies from05.35±0.58 Bq/m3to53.50±1.82 Bq/m3with an average18.39±4.18 Bq/m3. The concentration of thoron daughters was found to vary from 0.14 mWL to 1.44 mWL with an average0.53±0.11 mWL. The annual effective doses due to thoron mainly vary from 0.042 mSv/y to 0.81 mSv/y with an average0.20±0.06 mSv/y. The preliminary results in this study indicate that they may be suitable for evaluating the indoor220Rn and its progeny concentrations whenever the public exposure to220Rn and its progeny is taken into account. During this survey, the continuous difficulty in measuring thoron was also pointed out, due to its short half-life and faults in the measuring system.

Pinocchio e l’evoluzione

Revue Romane ◽  
2011 ◽  
Vol 46 (2) ◽  
pp. 282-293
Author(s):  
Margareth Hagen
Keyword(s):  
19Th Century ◽  
Fairy Tales ◽  
Public Debate ◽  
The Novel ◽  
The Public ◽  
Continuous Evolution ◽  
Narrative Interpretation ◽  
Theories Of Evolution ◽  
The 19Th Century ◽  
Pedagogical Literature

The first chapters of Carlo Collodi’s Pinocchio were printed in 1881, the same year as the publication of the novel I Malavoglia, Giovanni Verga’s masterpiece of verismo. While every critical reader of Verga’s realism has pointed out his particular narrative interpretation of evolution, Collodi’s has novel very seldom been connected to the theories of evolution, even if Darwin’s ideas were highly present in the public debate in Florence during the last decades of the 19th century. The reasons for this silence are primarily to be found in the genre of Pinocchio, in the fact that it is children literature, and therefore primarily related to the narrative mechanisms of the fairy tales and pedagogical literature. Focusing on Pinocchio, the article discusses to which degree Darwinism can be traced in Collodi’s literature for children, and questions if the continuous metamorphoses of Pinocchio can be read also in connection with the naturalist conception of the literary characters as unstable, in continuous evolution, and not only as part of the mechanisms of fairy tales and mythological narratives.

scholarly journals Trends in Fine Particle Concentration and Chemical Composition in Southern California

2000 ◽  
Vol 50 (1) ◽  
pp. 43-53 ◽  
Author(s):  
Christos S. Christoforou ◽  
Lynn G. Salmon ◽  
Michael P. Hannigan ◽  
Paul A. Solomon ◽  
Glen R. Cass
Keyword(s):  
Chemical Composition ◽  
Fine Particle ◽  
Southern California ◽  
Particle Concentration

scholarly journals References to Gauguin paintings in Somerset Maugham’s The moon and sixpence

Literator ◽  
2014 ◽  
Vol 35 (1) ◽  
Author(s):  
Laurence Wright
Keyword(s):  
The Novel ◽  
The Moon ◽  
The Public ◽  
Paul Gauguin ◽  
Works Of Art ◽  
Verbal Descriptions

It has not before been noticed that in describing works of art painted by his fictional anti-hero,Charles Strickland, in the novel The moon and sixpence, which is loosely based on the life of Paul Gauguin, Somerset Maugham drew on actual works by Gauguin in his verbal descriptions. Sometimes the references are to specific paintings, at others to phases in his work. For readers familiar with Gauguin’s artistic output, his writings on art and his biography, the effect of this insistent visual ‘quotation’ is to create a disturbing sense of aesthetic dissonance, in that it becomes difficult to accept the inarticulate, surly, impassioned but utterly grim and joyless figure of the fictional Charles Strickland as the source of these vivifying paintings, which possess their own real history and provenance. There is nothing in Strickland of Gauguin’s child-like zest for life, his exuberance, his fantasies, his extrovert willingness to explain his art to friends and the public through fascinating if deeply unreliable writings. The reader must either attempt to blot all knowledge of Gauguin and his art from consciousness, there by denying that Maugham is ‘quoting’ Gauguin’s oeuvre, or else submit to an intolerable level of fictional incredulity and disbelief.

scholarly journals Indestructible Pasts and Paranoid Presents: John Franzen against Active Forgetting in Purity

2019 ◽  
pp. 21-34
Author(s):  
Cristina Garrigós
Keyword(s):  
Traumatic Event ◽  
The Novel ◽  
Contemporary Society ◽  
The Public ◽  
The Past ◽  
Personal Archives ◽  
Conscious Process ◽  
Unconscious Desire ◽  
Selection Of

Forgetting and remembering are as inevitably linked as lifeand death. Sometimes, forgetting is motivated by a biological disorder, brain damage, or it is the product of an unconscious desire derived from a traumatic event (psychological repression). But in some cases, we can motivate forgetting consciously (thought suppression). It is through the conscious repression of memories that we can find self-preservation and move forward, although this means that we create a fable of our lives, as Nietzsche says in his essay “On the Uses and Disadvantages of History for Life” (1997). In Jonathan Franzen’s novel, Purity (2015), forgetting is an active and conscious process by which the characters choose to forget certain episodes of their lives to be able to construct new identities. The erased memories include murder, economical privileges derived from illegal or unethical commercial processes, or dark sexual episodes. The obsession with forgetting the past links the lives of the main characters, and structures the narrative of the novel. The motivated erasure of memories becomes, thus, a way that the characters have to survive and face the present according to a (fake) narrative that they have constructed. But is motivated forgetting possible? Can one completely suppress facts in an active way? This paper analyses the role of forgetting in Franzen’s novel in relation to the need in our contemporary society to deny, hide, or erase uncomfortable data from our historical or personal archives; the need to make disappear stories which we do not want to accept, recognize, and much less make known to the public. This is related to how we manage information in the age of technology, the “selection” of what is to be the official story, and how we rewrite our own history

scholarly journals The Propaganda Expressions in “Angel and Demon” Novel by Dan Brown

LETS ◽  
2019 ◽  
Vol 1 (1) ◽  
pp. 44-57
Author(s):  
Muh. Taufiq Syam
Keyword(s):  
Qualitative Method ◽  
The Novel ◽  
The Public ◽  
History Of ◽  
Descriptive Qualitative

This research studied about the kinds of propaganda expressions and what messages are conveyed through the propaganda expressions in Angel and Demon novel by Dan Brown. The research used the propaganda theory by Harold Laswell, that divided in four kinds; agitation, integration, horizontally and vertically propaganda. In the methodology of research, the writer used descriptive qualitative method and intrinsic and extrinsic approach. In this research, the writer found there are some expressions that contain agitation propaganda, integration propaganda, horizontally propaganda and vertically propaganda that could be giving influence to the reader. In general, an expression of propaganda in “Angel and Demon” novel by Dan Brown wants to change the mindset of people towards their views to the brotherhood of the „Illuminati. The novel attempts to explain the history of the birth of a conflict between the Christian and the „Illuminati‟ and how much influence they had been, the author packed them into a dialogue delivered by characters that are in the novel in which there are propaganda expressions. The implication of this research as a information to the public that a novel is not only use full as a reading at leisure or entertainment, but the novel can also be functioning as media of propaganda.

Sign in / Sign up

Export Citation Format

Share Document