HELMET DESIGN CRITERIA. BASED ON THE U.S. ARMY APH-5 HELMET EVALUATION

1962 ◽  
Author(s):  
DANIEL J. SCHNEIDER ◽  
GERRIT J. WALHOUT
Keyword(s):  
Design Criteria ◽  
The U.S ◽  
Helmet Design

HELMET DESIGN CRITERIA FOR IMPROVED CRASH SURVIVAL

1966 ◽  
Author(s):  
Jr. Haley ◽  
Turnbow J. L. ◽  
Macri J. W. ◽  
Walhout S. ◽  
G. J.
Keyword(s):  
Design Criteria ◽  
Helmet Design

Noise codes and acoustical design criteria for distribution facilities

2021 ◽  
Vol 263 (5) ◽  
pp. 1594-1605
Author(s):  
Michael Conaway ◽  
Benjamin Mueller ◽  
Joseph Keefe
Keyword(s):  
Design Criteria ◽  
Noise Sources ◽  
The Public ◽  
Common Criteria ◽  
Heavy Trucks ◽  
Regulatory Limits ◽  
The World ◽  
Code Language ◽  
Delivery Vehicles ◽  
The U.S

Distribution and warehouse-type facilities are routinely constructed all over the country and the world. On-site noise sources for this type of facility include heavy trucks, delivery vehicles, and rooftop HVAC equipment. Stationary noise is often more clearly regulated than mobile noise sources. To protect the public, appropriate criteria need to be established for all sources. Some jurisdictions have quantitative regulatory limits in place that may be used as design criteria while others may have less helpful qualitative code language or no noise code at all. A review of common metrics found throughout the U.S. is presented to understand code language that appropriately protects the public for specific sources. In addition, it is useful to analyze and discuss common criteria applied in the absence of quantitative code limits.

Evaluation of Leed “Innovation in Design Process” and “Location & Linkages” Case Study: Diyarbakir Turkey

2015 ◽  
Vol 40 (3) ◽  
pp. 84-93
Author(s):  
Gökçe Tuna Taygun ◽  
Polat Darçın ◽  
S. Müjdem Vural
Keyword(s):  
Waste Management ◽  
Design Process ◽  
Energy Efficient ◽  
Social Needs ◽  
Assessment System ◽  
Rating System ◽  
Design Criteria ◽  
Building Assessment ◽  
The U.S

The paper focuses on the LEED rating system of Diyarbakır Houses to an assessment with respect to “Innovation in Design Process and Location & Linkages”, assuming to conduct a trial of the building assessment and certification systems, which were highly popular in Europe and in the U.S. in the 1990s and in Turkey in the 2000s, on the “traditional building”. The aim of the paper is to bring a criticism of and suggestions to the LEED credits in connection with environmentalist design criteria, and to be able to determine that these credits, which are limited in the first place, may already be part of the design of traditional buildings in Turkey. Three different typological houses of Diyarbakır were selected for the research and detail evaluated with the scope of LEED for Homes credits. Using this assessment system, old Diyarbakır houses known to involve many successful solutions in terms of factors related to the environment and the user were assessed. The assessment revealed the fact that these houses, which are in harmony with the environment, are energy-efficient, use water and resources optimally, are successful in waste management, meet their users’ biological, psychological and social needs and do not cause health problems for their users’ and the environment scored low in LEED.

Human Factors Design Criteria for Spaceflight Intravehicular Crew Restraints

1986 ◽  
Vol 30 (14) ◽  
pp. 1371-1375 ◽  
Author(s):  
Ruthan Lewis
Keyword(s):  
Human Factors ◽  
Design Guidelines ◽  
Design Criteria ◽  
Space Program ◽  
Design Issues ◽  
History Of ◽  
Proper Design ◽  
The U.S

Proper design of devices to restrain and position astronauts in microgravity is essential for working and living in space. This paper traces the development of crew restraints throughout the history of the U.S. space program. The paper also examines the functioning of various restraints in their conditions of use. Finally, design issues and recommended design guidelines for intravehicular crew restraints are identified.

scholarly journals SITING AND DESIGN CRITERIA OF DOCK STRUCTURES IN THE MARSHALL ISLANDS

1980 ◽  
Vol 1 (17) ◽  
pp. 126
Author(s):  
R.M. Noble ◽  
K.C. Leslie ◽  
D. O'Day
Keyword(s):  
Site Selection ◽  
Pacific Islands ◽  
Low Cost ◽  
Marshall Islands ◽  
Design Criteria ◽  
Army Corps ◽  
The North ◽  
The Pacific ◽  
The Government ◽  
The U.S

In the summer of 1978, a siting/design investigation for dock structures (Marshall Islands Dock Project) was conducted at 15 atolls within the Marshall Islands group (see Figure 1). The Marshall Islands are within the U.S. Trust Territory of the Pacific Islands (TTPI), located in the North Pacific. The Marshall Islands Dock Project is part of the Capital Improvements Program currently underway in the Marshalls. The program, aimed towards making the Marshall Islands more selfsufficient in preparation for their independence in 1981, includes the construction of low cost dock structures for use by the design vessels described in this paper to load/unload agricultural products, supplies, and passengers. This study did not include the feasibility of this approach versus other alternative loading/unloading approaches. This investigation included site selection, development of design criteria, and the design and alignment schemes for 12 new dock structures. In addition, design criteria and plans were developed for the upgrading of three existing dock structures. The site selection was performed using a multidisciplinary approach which considered environmental, sociological, and archaeological impacts, in addition to the usual technical site selection. This paper only discusses the technical considerations to site selection. Overall responsibility for the project was assumed by the Pacific Ocean Division of the U.S. Army Corps of Engineers on behalf of the Government of the Trust Territory of the Pacific Islands. Our work was performed for Alfred A. Yee & Associates, Inc., the structural engineer and prime contractor for the project, and in collaboration with R. M. Towill Corporation.

Historical Introduction

1977 ◽  
Vol 35 ◽  
pp. 2-5
Author(s):  
R. D. Heidenreich
Keyword(s):  
Electron Emission ◽  
Secondary Electron ◽  
Secondary Electron Emission ◽  
50Th Anniversary ◽  
Secondary Emission ◽  
Wave Nature ◽  
Nobel Prize In Physics ◽  
Primary Electrons ◽  
The U.S ◽  
Mutual Agreement

This program has been organized by the EMSA to commensurate the 50th anniversary of the experimental verification of the wave nature of the electron. Davisson and Germer in the U.S. and Thomson and Reid in Britian accomplished this at about the same time. Their findings were published in Nature in 1927 by mutual agreement since their independent efforts had led to the same conclusion at about the same time. In 1937 Davisson and Thomson shared the Nobel Prize in physics for demonstrating the wave nature of the electron deduced in 1924 by Louis de Broglie.The Davisson experiments (1921-1927) were concerned with the angular distribution of secondary electron emission from nickel surfaces produced by 150 volt primary electrons. The motivation was the effect of secondary emission on the characteristics of vacuum tubes but significant deviations from the results expected for a corpuscular electron led to a diffraction interpretation suggested by Elasser in 1925.

Variations in Surface Textures of Quartz Sand using Electron Microscopy

1970 ◽  
Vol 28 ◽  
pp. 494-495
Author(s):  
Eugene J. Amaral
Keyword(s):  
Electron Microscopy ◽  
Glass Industry ◽  
Glass Slide ◽  
Distilled Water ◽  
Early Paleozoic ◽  
Secondary Effects ◽  
Surface Textures ◽  
High Silica ◽  
Sand Deposit ◽  
The U.S

Examination of sand grain surfaces from early Paleozoic sandstones by electron microscopy reveals a variety of secondary effects caused by rock-forming processes after final deposition of the sand. Detailed studies were conducted on both coarse (≥0.71mm) and fine (=0.25mm) fractions of St. Peter Sandstone, a widespread sand deposit underlying much of the U.S. Central Interior and used in the glass industry because of its remarkably high silica purity.The very friable sandstone was disaggregated and sieved to obtain the two size fractions, and then cleaned by boiling in HCl to remove any iron impurities and rinsed in distilled water. The sand grains were then partially embedded by sprinkling them onto a glass slide coated with a thin tacky layer of latex. Direct platinum shadowed carbon replicas were made of the exposed sand grain surfaces, and were separated by dissolution of the silica in HF acid.

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