Arthroscopic Radiocarpal Tendinous Interpositions (ARTI) for SLAC I and 2: « A new conservative solution » Technique

The elliptical orbit whirl model is widely used to identify the frequency-dependent rotordynamic coefficients of annular seals. The existing solution technique of an elliptical orbit whirl model is the transient computational fluid dynamics (CFD) method. Its computational time is very long. For rapid computation, this paper proposes the orbit decomposition method. The elliptical whirl orbit is decomposed into the forward and backward circular whirl orbits. Under small perturbation circumstances, the fluid-induced forces of the elliptical orbit model can be obtained by the linear superposition of the fluid-induced forces arising from the two decomposed circular orbit models. Due to that the fluid-induced forces of circular orbit, the model can be calculated with the steady CFD method, and the transient computations can be replaced with steady ones when calculating the elliptical orbit whirl model. The computational time is significantly reduced. To validate the present method, its rotordynamic results are compared with those of the transient CFD method and experimental data. Comparisons show that the present method can accurately calculate the rotordynamic coefficients. Elliptical orbit parameter analysis reveals that the present method is valid when the whirl amplitude is less than 20% of seal clearance. The effect of ellipticity on rotordynamic coefficients can be ignored.

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Optimizing a Sustainable Supply Chain Inventory Model for Controllable Deterioration and Emission Rates in a Greenhouse Farm

Mathematics ◽

10.3390/math9050495 ◽

2021 ◽

Vol 9 (5) ◽

pp. 495

Author(s):

Umakanta Mishra ◽

Abu Hashan Md Mashud ◽

Ming-Lang Tseng ◽

Jei-Zheng Wu

Keyword(s):

Supply Chain ◽

Carbon Emissions ◽

Trade Credit ◽

Numerical Study ◽

Inventory Model ◽

Green Technology ◽

Solution Technique ◽

Emission Rates ◽

Sustainable Supply Chain ◽

Green Technologies

This study investigated how greenhouse managers should invest in preservation and green technologies and introduce trade credit to increase their profits. We propose a supply chain inventory model with controllable deterioration and emission rates under payment schemes for shortage and surplus, where demand depends on price and trade credit. Carbon emissions and deterioration are factors affecting global warming, and many greenhouse managers have focused on reducing carbon emissions. Carbon caps and tax-based incentives have been used in many greenhouses to achieve such reduction. Because of the importance of reducing carbon emissions for developing a green supply chain, various studies have investigated how firms deal with carbon emission constraints. In this continuation, we have used green technology to curb the excessive emissions from the environment or make it clean from CO2. In a seller–buyer relationship, the seller can offer a trade credit period to the buyer to manage stock and stimulate demand. Deterioration may become a challenge for most firms as they are under time constraints control, and preservation technology could help. This study proposes three novel inventory strategies for a sustainable supply chain (full backorder, partial backorder, and no backorder), linking all these important issues. The solution optimizes total annual profit for inventory shortage or surplus. We conducted a numerical study with three examples to evaluate the model’s authenticity and effectiveness and demonstrate the solution technique. The deterioration and emission rates can be included in a trade credit policy to increase greenhouse profits. The results suggest that greenhouse managers could apply the proposed model to manage real-world situations.

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Fabrication of a lead ion selective membrane based on a polycarbazole Sn(iv) arsenotungstate nanocomposite and its ion exchange membrane (IEM) kinetic studies

RSC Advances ◽

10.1039/d0ra07534e ◽

2021 ◽

Vol 11 (7) ◽

pp. 4210-4220

Author(s):

Mohd. Zeeshan ◽

Rais Ahmad ◽

Asif Ali Khan ◽

Aftab Aslam Parwaz Khan ◽

Guillermo C. Bazan ◽

...

Keyword(s):

Ion Exchange ◽

Polyvinyl Chloride ◽

Cation Exchanger ◽

Kinetic Studies ◽

Ion Exchange Membrane ◽

Lead Ion ◽

Solution Technique ◽

Casting Solution ◽

Selective Membrane ◽

Exchange Membrane

A polycarbazole-Sn(iv) arsenotungstate (Pcz-SnAT) nanocomposite cation exchanger membrane (CEM) was prepared via the casting solution technique utilizing polycarbazole-Sn(iv) arsenotungstate and PVC (polyvinyl chloride) as a binder.

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p-N,N-dimethylaminobenzaldehyde (DAB) grown by solution technique using CCl4 as growth medium

Journal of Thermal Analysis and Calorimetry ◽

10.1007/s10973-008-9882-5 ◽

2009 ◽

Vol 96 (1) ◽

pp. 111-115 ◽

Cited By ~ 10

Author(s):

P. Anbusrinivasan ◽

G. Madhurambal ◽

S. C. Mojumdar

Keyword(s):

Growth Medium ◽

Solution Technique

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Improvement of the long-term stability of ZnSnO thin film transistors by tungsten incorporation using a solution-process method

RSC Advances ◽

10.1039/c8ra02925c ◽

2018 ◽

Vol 8 (37) ◽

pp. 20990-20995 ◽

Cited By ~ 10

Author(s):

Xiang Yang ◽

Shu Jiang ◽

Jun Li ◽

Jian-Hua Zhang ◽

Xi-Feng Li

Keyword(s):

Thin Film ◽

Thin Films ◽

Thin Film Transistors ◽

Solution Process ◽

Solution Technique ◽

Term Stability ◽

Long Term Stability ◽

Process Method

In this paper, W-doped ZnSnO (WZTO) thin films and TFT devices are successfully fabricated by a wet-solution technique.

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A Method to Design Shell-Side Pressure Drop Constrained Tubular Heat Exchangers

Journal of Engineering for Power ◽

10.1115/1.3446527 ◽

1977 ◽

Vol 99 (3) ◽

pp. 441-448 ◽

Cited By ~ 5

Author(s):

K. P. Singh ◽

M. Holtz

Keyword(s):

Pressure Drop ◽

Heat Exchangers ◽

Solution Procedure ◽

Design Guidelines ◽

Solution Technique ◽

Nuclear Heat ◽

Side Pressure ◽

Flow Induced Vibrations ◽

The Subject ◽

Shell And Tube

In shell and tube heat exchangers, the triple segmental baffle arrangement has been infrequently used, even though the potential of this baffle system for high thermal effectiveness with low pressure drop is generally known. This neglect seems to stem from the lack of published design guidelines on the subject. Lately, however, with the rapid growth in the size of nuclear heat exchangers, the need to develop unconventional baffling pattern has become increasingly important. A method to effectively utilize the triple segmental concept to develop economical designs is presented herein. The solution technique given in this paper is based on a flow model named “Piecewise Continuous Cosine Model.” The solution procedure easily lends itself to detailed analysis to determine safety against flow-induced vibrations.

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A Method for Use of Cyclic Symmetry Properties in Analysis of Nonlinear Multiharmonic Vibrations of Bladed Disks

Journal of Turbomachinery ◽

10.1115/1.1644558 ◽

2004 ◽

Vol 126 (1) ◽

pp. 175-183 ◽

Cited By ~ 55

Author(s):

E. P. Petrov

Keyword(s):

High Efficiency ◽

Equations Of Motion ◽

Linear Part ◽

Forced Response ◽

Mode Shapes ◽

Solution Technique ◽

Disk Model ◽

Sector Model ◽

Bladed Disk ◽

Symmetry Properties

An effective method for analysis of periodic forced response of nonlinear cyclically symmetric structures has been developed. The method allows multiharmonic forced response to be calculated for a whole bladed disk using a periodic sector model without any loss of accuracy in calculations and modeling. A rigorous proof of the validity of the reduction of the whole nonlinear structure to a sector is provided. Types of bladed disk forcing for which the method may be applied are formulated. A multiharmonic formulation and a solution technique for equations of motion have been derived for two cases of description for a linear part of the bladed disk model: (i) using sector finite element matrices and (ii) using sector mode shapes and frequencies. Calculations validating the developed method and a numerical investigation of a realistic high-pressure turbine bladed disk with shrouds have demonstrated the high efficiency of the method.

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Ambipolar organic thin film transistors prepared with a one step solution technique

Synthetic Metals ◽

10.1016/j.synthmet.2016.05.025 ◽

2016 ◽

Vol 220 ◽

pp. 194-201 ◽

Cited By ~ 9

Author(s):

Izabela Frac ◽

Magdalena Kucinska ◽

Pawel Gawrys ◽

Malgorzata Zagorska ◽

Waldemar Maniukiewicz ◽

...

Keyword(s):

Thin Film ◽

Thin Film Transistors ◽

Organic Thin Film Transistors ◽

Solution Technique ◽

Organic Thin Film ◽

One Step

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A Contemporary Connection to Historic Buildings Through Transparency and Reusability

Open House International ◽

10.1108/ohi-03-2015-b0009 ◽

2015 ◽

Vol 40 (3) ◽

pp. 52-60

Author(s):

Meltem Zehra Nevzat ◽

Cemil Atakara

Keyword(s):

Glass Structure ◽

Solution Technique ◽

High Tech ◽

Historic Buildings ◽

Structural Glass ◽

Architectural Drawings ◽

Existing Building ◽

Floor Systems ◽

The 19Th Century

From the 19th century onwards, glass has been used intensively in buildings. During the design process, the importance of aesthetics is very common for architects in general. The application of glass walls as part of the building’s structure has given flexibility in design together with transparency as well as aesthetics. Structural glass systems have been used in different building types for example office, residential, educational, commercial, transportation, cultural … Beyond the high - rise and high - tech buildings, structural glass systems have been applied also to historic buildings during their conservation process. The adaption of the structural glass system and the opportunity to reuse the existing building are other important aspects to be discussed. In this article, the literature review will be formed with a brief explanation of transparency in contemporary architecture, structural glass systems focusing on ‘suspended glass systems with pre-stressed cable trusses’ (SGSPCT) which has three application methods; 1) between floor systems 2) independent body systems 3) distance bridging systems and the reusability of existing buildings. The ‘between floor system’ which is commonly used as a contemporary solution technique for historic buildings together with its effects, will also be analysed with the help of a case study, Esma Sultan Mansion. This historic building’s present glass structure will be studied to create an alternative proposal less dependent to the existing building. Another case study will be the Ballapais Abbey. Part of this gothic building (the common room) that has collapsed in the past will be analysed. An independent glass structured annex designed with SGSPCT will be proposed giving joint details of the adaptation to the existing building. This case of study is a literature analysis based on books, internet resources, articles and architectural drawings, like plans, sections and details related to the buildings. Both case studies will be proposing an alternative glass structured annex that is focusing on gained transparency and reusability in respect to the existing historic building.

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