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Bbt Acoustic Alternative Top Bracing Cadd Data Set-Norev-2022jun28, Bill Hemphill

STEM Guitar Project’s BBT Acoustic Kit

This electronic document file set consists of an overview presentation (PDF-formatted) file and companion video (MP4) and CADD files (DWG & DXF) for laser cutting the ETSU-developed alternate top bracing designs and marking templates for the STEM Guitar Project’s BBT (OM-sized) standard acoustic guitar kit. The three (3) alternative BBT top bracing designs in this release are
(a) a one-piece base for the standard kit's (Martin-style) bracing,
(b) 277 Ladder-style bracing, and
(c) an X-braced fan-style bracing similar to traditional European or so-called 'classical' acoustic guitars.

The CADD data set for each of the three (3) top bracing designs includes …

Playingground: Towards A Seriously Playful Architecture, Anita Lamisi Karimu

Architecture Senior Theses

"playGround" is a study of the fundamental rules and organizational logics seen in popular board games and an exploration of their potential applications towards the manifestation of utopian ideals of the built. This thesis is interested in the restoration of user freedom in the built environment by reintroducing the concept of "play" as the fundamental principle of design, giving equal agency to all users in utilizing and modifying transitional and extended-use circulation space. Play in this thesis acts as the antithesis to the normative systems of order and regulation from which contemporary architecture is derived.

"playGround" posits that every ground …

Durmid Ladder Structure And Its Implications For The Nucleation Sites Of The Next M >7.5 Earthquake On The San Andreas Fault Or Brawley Seismic Zone In Southern California, Susanne U. Jänecke, Daniel K. Markowski, James P. Evans, Patricia Persaud, Miles Kenney

Geosciences Faculty Publications

We integrated new geologic data with published geophysical data to document that the southernmost San Andreas fault zone, onshore of the Salton Sea, southern California, is a transpressional, 1–4-km-wide ladder-like structure. This newly identified Durmid ladder structure is a voluminous right-reverse fault zone that broadens across Durmid Hill around rotating domains of regularly spaced, left- and right- lateral cross faults. The active East Shoreline fault zone of the San Andreas fault forms the southwest margin of this fault zone, and it is generally parallel to the main strand of the San Andreas fault zone for >30 km, deforms Pliocene to …

On Structures Of Large Rooted Graphs, Shilin Wang

LSU Doctoral Dissertations

A rooted graph is a pair (G,R), where G is a graph and R⊆V(G). There are two research topics in this thesis. One is about unavoidable substructures in sufficiently large rooted graphs. The other is about characterizations of rooted graphs excluding specific large graphs.

The first topic of this thesis is motivated by Ramsey Theorem, which states that K_n and ¯(K_n ) are unavoidable induced subgraphs in every sufficiently large graph. It is also motivated by a classical result of Oporowski, Oxley, and Thomas, which determines unavoidable large 3-connected minors. We first determine unavoidable induced subgraphs, and unavoidable subgraphs in …

Design Of Geometric Parameters Of A Double-Sided Linear Induction Motor With Ladder Secondary And A Consideration For Reducing Cogging Force, Mochammad Rusli, Christopher David Cook

Faculty of Engineering and Information Sciences - Papers: Part A

In this paper, design of the physical of double-sided linear induction motor with ladder secondary is presented. It has aim to obtain the high-precision of DSLIM for the linear slow speed applications. One of limiting factor for precision linear movement is cogging force. The efforts in reducing the cogging action in rotary induction motor has been conducted very well. However, the cogging force reduction in the DSLIM with ladder secondary has not been done before. The DSLIM provide a great advantages for LIM-driven wheel vehicles for specific applications, for example vehicles that are used in over short distances, e.g. at …

An Engineering Psychology Based Analysis Of Ladder Setup Procedures, Alan Campbell

All Theses

ABSTRACT
Accidents involving portable ladders are a common cause of serious occupational and non-occupational injuries throughout the industrialized world. Many of these injuries could be prevented with proper education, training and usage of portable ladders. This research focused on the human factors and engineering aspects of portable extension ladder usage. Results and analysis revealed evidence of unsafe acts that could lead to catastrophic ladder slide-out accidents in real-life situations. Six ladder setup methods were evaluated based on placement angles: the Basic, 75 Degree, Stand-Reach, L Sticker, 4:1, and Level methods. The level method produced the most accurate results with the …

A Ladder Operator Solution To The Particle In A Box Problem, Carl W. David

Chemistry Education Materials

A ladder operator solution to the particle in a box problem of elementary quantum mechanics is presented, although the pedagogical use of this method for this problem is questioned.

Workers Killed In Falls From Ladders, Kentucky Injury Prevention And Research Center

Kentucky Haz Alerts--Falls

To prevent falls from ladders while working:

• Make sure that an extension or straight ladder are erected according to the “4 to 1” rule of thumb.
• Safe work practices should be established by the employer for ascending and descending extension or straight ladders with materials and/ or equipment.
• All non-self-supporting ladders should be secured at the top and stabilized at the bottom.
• While working from ladders, workers should wear appropriate footwear.