Mitsubishi: By incorporating the latest blading design and advances in materials, MHI provides complete replacement internals to fit within the existing cylinders of many different types of steam turbines. The replacement rotating and stationary blading, along with advanced design stationary components and sealing technology, result in improved efficiency and therefore increased electrical output at currently operating steam flows.

This results in lower fuel cost and additional megawatts without increasing emissions. These features were developed to make Mitsubishi more competitive in the new steam turbine market.

Among others, the latest design improvements include reduced clearances at shaft packing with Guardian Post and Vortex Shedder technology.

Transmission in asymptomatic cases, early symptomatic phase, as well as limited access to testing in different settings are factors that have led to the rapid spread of infection

Noteworthy are new approaches to shaping the steam paths with three-dimensional modeling and the use of twisted, leaned and curved vanes and blades in both the low-pressure and high- and intermediate-pressure sections.

a decrease in the profile and end losses in the stages due to the use of new profiles and more attention to meridional profiling of the steam path.

Further, new blade profiles are much more unique than the one shown in the article and give much greater effect.

Statistics *Lumens per watt: 2 - 7 (best rating is for an enclosed lamp) *Lamp life (life of carbon rods): 75 hrs average (1890s) 175 hrs (1911) 600 hrs (magnetite electrode) Life depends on the length of the electrode (hrs per inch was used) *CRI NA *Color Temperature: NA Warm up time: instant on

Based on the results obtained, in 2020, medical face masks production using fossil-based plastics causes the loss of 2.03 × 103 disability-adjusted life years (DALYs); 1.63 × 108 PDF*m2*yr damage to ecosystem quality; the climate-damaging release of 2.13 × 109 kg CO2eq; and 5.65 × 1010 MJ damage to resources. Besides, annual medical face mask production results in 5.88 × 104 TJ demand for exergy. On the other hand, if used makes are not appropriately handled, they can lead to 4.99 × 105 Pt/yr additional damage to the environment in 2020 as determined by the EDIP 2003.

most of these masks contain plastics or other derivatives of plastics.

generates million tons of plastic wastes to the environments in a short span of time.

A study by Klemeš et al., 2020a,b shows that a mask production consumes about 10-30 Wh energy and releases 59 g CO2-eq greenhouse gas to the environment.

2,228,170,832

China (989,103,299 pieces),

Face masks, particularly, muffle sounds and cover facial expressions that ease comprehension during live communication

the face mask poses challenges on daily face-to-face communications.

Proper application of the protective mask involves covering the mouth and the nose, which muffles sound and makes it challenging to understand speech and some higher-pitched voices

For some, the added financial burden is an irritation — but still affordable. To others, the prospect of paying $1 for a single disposable mask or $24 for a test kit is an economic impossibility, raising the specter that the pandemic will continue to exacerbate inequalities.

Americans have found that the financial costs of the pandemic are increasingly falling on their shoulders.

“These are the workers facing the virus, and we are asking them to buy high-quality masks and pay for rapid tests?” Schneider said. “For many of these workers, it’s just not a possibility — this is about food on the table. And when you face that impossible choice, the devolution of pandemic prevention to impoverished workers is really unrealistic.”

carry both financial and environmental costs

generate up to 7,200 tons of medical waste every day,

Decontaminating regular N95 masks so that health care workers can wear them for more than one day drops costs and environmental waste by at least 75 percent,