A semi‐quantitative job exposure matrix for dust exposures in Swedish soft tissue paper mills

2020 ◽  
Vol 63 (4) ◽  
pp. 359-367 ◽  
Author(s):  
Richard L. Neitzel ◽  
Marianne Andersson ◽  
Susanna Lohman ◽  
Gerd Sällsten ◽  
Kjell Torén ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Job Exposure Matrix ◽  
Paper Mills ◽  
Tissue Paper

Development of a Job Exposure Matrix for Noise in the Swedish Soft Tissue Paper Industry

2017 ◽  
Vol 62 (2) ◽  
pp. 195-209 ◽  
Author(s):  
Richard Lee Neitzel ◽  
Marianne Andersson ◽  
Helena Eriksson ◽  
Kjell Torén ◽  
Eva Andersson
Keyword(s):  
Soft Tissue ◽  
Noise Exposure ◽  
Paper Industry ◽  
Hearing Protection ◽  
Job Exposure Matrix ◽  
Paper Mills ◽  
Tissue Paper ◽  
Personal Dosimetry ◽  
Job Title ◽  
Over Time

Abstract Objectives Noise exposure is a common occupational hazard, but has not been sufficiently characterized in paper mills. We developed a job-exposure matrix (JEM) for noise exposure for use in estimating exposures among Swedish soft tissue paper mill workers. Methods We used a combination of area and personal dosimetry noise exposure measurements made at four soft tissue paper mills by industry and research staff between 1977 and 2013 to estimate noise exposures by department, location, and job title. We then utilized these estimates, in conjunction with information on process and facility changes and use of hearing protection collected via focus groups, to create a seven-category, semi-quantitative JEM for all departments, locations, and job titles spanning the years 1940–2010. Results The results of the 1157 area and personal dosimetry noise measurements indicated that noise levels have generally declined in Swedish paper mills over time, though these changes have been neither uniform nor monotonic within or across the four mills. Focus group results indicated that use of hearing protection has generally increased over time. The noise JEM totals 1917 cells, with each cell representing a unique combination of operation, job title, and single year. We estimated that ~50% of workers at the four mills assessed were exposed at or above the Swedish 8-h average noise exposure limit of an 85 dBA at the conclusion of the study period in 2010. Conclusions Our results highlight the continuing need for hearing loss prevention and noise control efforts at these and similar mills, and the completed JEM now represents a tool for use in epidemiological studies of noise-related health outcomes.

Electrohydrodynamically Processed Poly-(Vinylidene Fluoride)/Polyaniline Composite Film on Soft Tissue Paper for Mechanoelectrical Energy Conversion and Vibration Sensing

2018 ◽  
Author(s):  
Muhammad S. Waliullah ◽  
Yong X. Gan ◽  
Ann D. Chen ◽  
Ryan N. Gan
Keyword(s):  
Soft Tissue ◽  
Composite Film ◽  
Energy Conversion ◽  
Structural Integrity ◽  
Vinylidene Fluoride ◽  
Electron Microscopic ◽  
Peak Voltage ◽  
Tissue Paper ◽  
Vibration Sensing ◽  
Poly Vinylidene Fluoride

Electrohydrodynamic processing including electrospinning and electrospraying is suitable for depositing controllable structures in fiber or film form. In this work, the electrohydrodynamic approach was used to prepare poly(vinylidene fluoride)/polyaniline composite film. Scanning electron microscopic analysis was performed to show the morphology of the film on soft tissue paper. Self-poling of the film was found due to the high voltage application in the electrohydrodynamic process. The addition of polyaniline into PVDF improves the conductivity of the film significantly. Mechanoelectrical response of the film was demonstrated by measuring the open circuit voltage of the specimens under bending. The peak voltage generated is over 1.2 V due to the bending deformation of the film. The film has ultrafast response to the deformation. It is concluded that the film has multiple functions for mechanoelectrical energy conversion, vibration sensing, and structural integrity monitoring applications.

Measurement of the Content of Water Using Light Penetration

2014 ◽  
Vol 70 (3) ◽  
Author(s):  
Mohd Fahajumi Jumaah ◽  
Mohd Zikrillah Zawahir ◽  
Fazlul Rahman Mohd Yunus ◽  
Ruzairi Abdul Rahim ◽  
Nor Muzakkir Nor Ayob ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Electronic Component ◽  
Light Penetration ◽  
Tissue Penetration ◽  
Tissue Paper ◽  
The Subject

In this paper we use an electronic component to produce light which is applied in testing soft tissue penetration. We used bio tissue, a slice of apple, and non-bio tissue, paper. The voltage could be adjusted to brighten the light to view the penetration of the subject. The thickness of the tissue was constant and the results showed that the current and voltage were significant as the light penetrated the soft tissue. 

scholarly journals Energy Saving for Tissue Paper Mills by Energy-Efficiency Scheduling under Time-of-Use Electricity Tariffs

Processes ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 274
Author(s):  
Zhiqiang Zeng ◽  
Xiaobin Chen ◽  
Kaiyao Wang
Keyword(s):  
Energy Efficiency ◽  
Energy Saving ◽  
Energy Cost ◽  
Cost Model ◽  
Paper Mill ◽  
Neighborhood Search ◽  
Energy Prices ◽  
Paper Mills ◽  
Tissue Paper ◽  
Study Results

Environmental concerns and soaring energy prices have brought huge pressure of energy saving and emission reduction to tissue paper mills. Electricity is one of the main energy sources of tissue paper mills. The production characteristics of tissue paper mills make it easy to decrease energy cost by using time-of-use (TOU) electricity tariffs. This study investigates the bi-objective energy-efficiency scheduling of tissue paper mills under time-of-use electricity tariffs, the objectives of which are makespan and energy cost. First, considering the processing energy cost, setup energy cost, and transportation energy cost, an energy cost model of a tissue paper mill under TOU electricity tariffs is established. Second, the energy-efficiency scheduling model under TOU electricity tariffs is built based on the energy cost model. Finally, on the basis of decomposition and teaching–learning optimization, this study proposes a novel multi-objective evolutionary algorithm and further combined with the variable neighborhood search to solve the problem. The case study results demonstrate that our study of tissue paper mill energy saving is feasible, and the proposed method has better performance than the existing methods.

scholarly journals Lung function and paper dust exposure among workers in a soft tissue paper mill

2019 ◽  
Vol 93 (1) ◽  
pp. 105-110 ◽  
Author(s):  
Eva Andersson ◽  
Gerd Sällsten ◽  
Susanna Lohman ◽  
Richard Neitzel ◽  
Kjell Torén
Keyword(s):  
Soft Tissue ◽  
Lung Function ◽  
Paper Mill ◽  
Dust Exposure ◽  
Tissue Paper

THE FIRST ALBERTA RECORD FOR CHEIRA CANTHIUM INCLUSUM (HENTZ) (ARANEIDA: CLUBIONIDAE), WITH OBSERVATIONS ON A HUMAN BITE REACTION

1994 ◽  
Vol 126 (1) ◽  
pp. 187-187 ◽  
Author(s):  
Robin Leech ◽  
Thomas Maxwell Brown
Keyword(s):  
Soft Tissue ◽  
Healthy Woman ◽  
First Record ◽  
Medical Assistance ◽  
Human Bite ◽  
University Of Alberta ◽  
Tissue Paper ◽  
Car Seat ◽  
Cheiracanthium Inclusum

On 27 May 1993, a normal, healthy woman in her early 30s put packages of groceries just purchased on the car seat beside her. As she sat in the driver's seat, she “…felt something painful sticking into her behind her knee.” She looked and saw something there, brushed it, but when it did not come off, she grabbed it into a soft tissue paper, and folded the paper over so the animal could not escape. She went immediately for medical assistance.The second author, a physician, examined the animal and thought it to be a dead spider, as he could not prod it into moving (many clubionids “play dead”). However, when he put it into alcohol, it writhed violently for a few moments before dying. He sent it to the Department of Entomology, University of Alberta. The spider was determined to be a female of Cheiracanthium inclusum (Hentz, 1847), a first record for Alberta, and only the second record for Canada.

Lung Function Among Workers in the Soft Tissue Paper-Producing Industry

CHEST Journal ◽  
2004 ◽  
Vol 125 (2) ◽  
pp. 731-736 ◽  
Author(s):  
Thomas Kraus ◽  
Annette Pfahlberg ◽  
Petra Zöbelein ◽  
Olaf Gefeller ◽  
Hans Jürgen Raithel
Keyword(s):  
Soft Tissue ◽  
Lung Function ◽  
Tissue Paper

Localization of Gallium-67 in Peritoneal Cells by Electron Microscopic Autoradiography

1973 ◽  
Vol 31 ◽  
pp. 404-405
Author(s):  
D. C. Swartzendruber ◽  
Norma L. Idoyaga-Vargas
Keyword(s):  
Clinical Trials ◽  
Soft Tissue ◽  
Tumor Tissue ◽  
Soft Tissue Tumors ◽  
Clinical Usefulness ◽  
Electron Microscopic ◽  
Normal Cells ◽  
Electron Microscopic Autoradiography ◽  
Peritoneal Cells ◽  
Gallium 67

The radionuclide gallium-67 (67Ga) localizes preferentially but not specifically in many human and experimental soft-tissue tumors. Because of this localization, 67Ga is used in clinical trials to detect humar. cancers by external scintiscanning methods. However, the fact that 67Ga does not localize specifically in tumors requires for its eventual clinical usefulness a fuller understanding of the mechanisms that control its deposition in both malignant and normal cells. We have previously reported that 67Ga localizes in lysosomal-like bodies, notably, although not exclusively, in macrophages of the spocytaneous AKR thymoma. Further studies on the uptake of 67Ga by macrophages are needed to determine whether there are factors related to malignancy that might alter the localization of 67Ga in these cells and thus provide clues to discovering the mechanism of 67Ga localization in tumor tissue.

Morphological Examination of a Herpes-type Virus Indigenous for Tree Shrews

1970 ◽  
Vol 28 ◽  
pp. 160-161
Author(s):  
J. P. Brunschwig ◽  
R. M. McCombs ◽  
R. Mirkovic ◽  
M. Benyesh-Melnick
Keyword(s):  
Electron Microscopy ◽  
Soft Tissue ◽  
Chick Embryo ◽  
Soft Tissue Sarcoma ◽  
Cell Cultures ◽  
Tree Shrew ◽  
Type Virus ◽  
Morphological Examination ◽  
Tree Shrews ◽  
Embryo Cells

A new virus, established as a member of the herpesvirus group by electron microscopy, was isolated from spontaneously degenerating cell cultures derived from the kidneys and lungs of two normal tree shrews. The virus was found to replicate best in cells derived from the homologous species. The cells used were a tree shrew cell line, T-23, which was derived from a spontaneous soft tissue sarcoma. The virus did not multiply or did so poorly for a limited number of passages in human, monkey, rodent, rabbit or chick embryo cells. In the T-23 cells, the virus behaved as members of the subgroup B of herpesvirus, in that the virus remained primarily cell associated.

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