نتایج جستجو برای: printing workers
تعداد نتایج: 143505 فیلتر نتایج به سال:
Abstract The widespread application of additive manufacturing (AM) technologies, commonly known as three-dimensional (3D) printing, in industrial and home-business sectors, the expected increase number workers consumers that use these devices, have raised concerns regarding possible health implications 3D printing emissions. To inform risk assessment management processes, this review evaluates ...
We propose oblivious printing, a novel approach to document printing in which a set of printers can cooperate to print a secret message—in human or machine readable form—without learning the message. We present multi-party protocols for obliviously printing a secret in three settings: obliviously printing the contents of a ciphertext, obliviously printing a randomized message, and generating an...
In recent years, inkjet printing, as a new method to fabricate microdroplet microarrays, has been increasingly applied in the field of biochemical diagnostics. To further improve the general applicability of the inkjet printing technology in fabricating biochemical chips, in this work, we introduce a model to describe the multiple injection procedure implemented by the inkjet printing approach,...
چکیده ندارد.
background: this study describes the possibility of implementing three-dimensional printing technology to create a precise construction of a planned bolus, based on computed tomography information stored in the digital imaging and communications in medicine (dicom) format file. materials and methods: to create the bolus with a 3d printer, we converted data in the dicom format to the stereolith...
Targeting the fast prototyping and massive production of complicated lenses, Zhiwei Zhu co-workers report a low-cost volumetric 3D printing method for ultra-fast high-precision fabrication miniature lenses with sub-nanometric roughness (see article number 2200488). The complex-shaped are generated by projection stereolithography corrected introducing an iterative learning scheme. Super-smooth s...
In article number 2100497 by Jun-Won Yun, Wooram Park, Hyun-Do Jung, and co-workers, a patient-customized implantable drug delivery device is developed using 3D printing technology for effective acute liver failure (ALF) treatment. The 3D-printed reservoir system can be adjusted in size shape to fit the ALF region effectively treat disease supplementing various pharmaceutical ingredients.
Objectives-After an inquiry from the employees of an offset printing plant, a historical cohort study was conducted to investigate cancer mortality among these workers. Methods-The cohort comprised 262 men, who contributed 2771 person-years of observation. 16 deaths were identified during the follow up period (1980-91). Expected numbers of deaths were derived from age specific regional rates. S...
Background Studies on the hematologic toxicity of ethylene glycol ethers in humans are limited. Therefore, the aim of this study was to examine the association between exposure to solvents (containing 2-butoxyethanol and 2-ethoxyethanol) and hematological effects. Methods Thirty-four screen-printing workers who were exposed to 2-butoxyethanol and 2-ethoxyethanol and 37 non-exposed clerical wo...
By Miss Dagmar Curjel, M.D., D.P.H. Bulletins of Indian Industries and Labour, No 31. Superintendent, Government Printing, Calcutta Price, 8 annas. Pp. 40. In this interesting brochure of 40 pages Dr. Curjel records the results of an enquiry held between November 1921 and October 1922 into the conditions of female labour in the jute and cotton mills around Calcutta, the tea districts in the Doo...
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