A NEW TYPE OF ARTIFICIAL TRACHEA FOR CARINAL BIFURCATION: A REPORT OF LONG TIME SURVIVAL AND HISTOLOGICAL EXAMINATIONS

ASAIO Journal ◽  
1999 ◽  
Vol 45 (2) ◽  
pp. 129
Author(s):  
T Sekine ◽  
T Nakamura ◽  
H Ueda ◽  
K Matsumoto ◽  
Y Yamamoto ◽  
...  
Keyword(s):  
2021 ◽  
Vol 4 ◽  
pp. 5-10
Author(s):  
S. FURS ◽  
◽  
A. FEDOSEEV ◽  

The article is devoted to the consideration of such an object of interdisciplinary research as the elite, namely, the latest trends in its study. It is shown that the consideration of this phenomenon has been going on for a long time, but now there is a sharp change in the focus of research – a new methodology is being developed. This is due to the fact that the axiom taken is the provision of a significant influence of the elite not only on the distribution of resources (economic, political, administrative) but also on the development (or recession) of the nation as a whole. The article presents a detailed analysis of the methodology for measuring the elite quality index which formed the basis for an international study conducted in 2020.


2019 ◽  
Vol 275 ◽  
pp. 01018
Author(s):  
Jialiang Zhang ◽  
Keting Tong ◽  
Pei Wu ◽  
Yushun Li

This paper presents a new type of lightweight composite structural system using bamboo-based panel and cold-formed thin-walled steel. The bamboo-based panel and cold-formed steel with C-section and U-section or profiled steel sheet can form various steel-bamboo composite members, including composite slab, composite wall, composite beam and composite column, utilizing structural adhesive or adhesive-screw reinforced joins. The paper summarizes the section design, mechanical experiments of the steel-bamboo composite structures based on the application of bamboo-based panel in modern building structures. Research shows that the two materials can form a perfect composite section and the connection systems are very effective in a long time, composite members have high capacity, ideal stability and ductility. The study shows that steel-bamboo composite components have good prospects in building structures of China.


2014 ◽  
Vol 705 ◽  
pp. 259-262
Author(s):  
Xin Bo Qu ◽  
Bi Hua Zhou ◽  
Ya Peng Fu ◽  
Li Juan Yang ◽  
Nan Zhang

The portable grounding system plays an important role in the lightning protection system of mobile equipments. But the traditional earth electrodes composed of vertical rods wouldn’t work well or would take a long time to set up in some conditions such as frozen soil, hard clay and so on. In this paper, a new type of portable grounding system which can be quickly spread and folded has been designed. To analyze the TGR’s (Transient Grounding Resistance) time-domain characteristics, the grounding systems have been modeled and simulated with FDTD (Finite Difference Time Domain). The influence rule of electrodes’ number and down-lead’s position to TGR has been studied with numerical analysis and validated with experiments. The results show that the new grounding system works well even on cement floor.


2017 ◽  
Vol 31 (19-21) ◽  
pp. 1740014
Author(s):  
Yi-Li Zhu ◽  
Zhong-Qiao Zheng

Catcher bearings (CB) are required to support the rotor rotating for some time when a failure event of active magnetic bearing (AMB) system occurs. For this purpose, a new type zero-clearance catcher bearing (NTZCB) is proposed. The influences of different parameters of NTZCB on the rotor dynamic responses are theoretically and experimentally analyzed. The results indicate that choosing relatively soft spring and heavy moveable supporting pedestal can effectively buffer the rotor vibrations, which makes it possible for the rotor to keep rotating with the support of the CB system for a long time.


1930 ◽  
Vol 14 (1) ◽  
pp. 105-115 ◽  
Author(s):  
Alfred L. Loomis ◽  
E. Newton Harvey ◽  
C. MacRae

A chronograph is described for recording continuously the rates of many different kinds of rhythmic processes over long time periods. The rate is read directly from the length of a line of ink, drawn by a moving pen. Rates of beat of excised turtle's hearts in Ringer's solution have been recorded at 25°C. under constant conditions of temperature, pH, and oxygen supply for periods of 36 hours. Regular periodic variations in the fundamental rhythm are figured, as well as rates of extraordinary constancy. The effects of adrenalin, ephedrin, thyroxin, α and ß pituitary hormone insulin, nicotin, and atropin are described in the text.


2012 ◽  
Vol 220-223 ◽  
pp. 2360-2363
Author(s):  
Yan Jun Sun ◽  
Chang Ming Liu ◽  
Hai Yu Li ◽  
Zhe Yuan

Multivariate quadratic based public-key cryptography called MQ problem which based on calculation of a secure cryptography of multivariate equations and MQ cryptography security is based on the difficulty of the solution of multivariate equations. But computer and mathematician scientists put a lot of effort and a long time to research MQ cryptography and they have proved that MQ cryptography is NP complete problem. Therefore, before the P problem Equal to the NP problem we do not figure out selected multivariate equations by random in polynomial time. So we can use this feature to construct the relative safety method of the public key encryption. A new type of public-key cryptosystem has been brought up in this paper that one-way shell core function which has such advantages as more security and flexibility, and provides a more inclusive public-key cryptosystem.


2009 ◽  
Vol 46 (2) ◽  
pp. 601-607 ◽  
Author(s):  
Thomas M. Liggett ◽  
Rinaldo B. Schinazi

We propose the following simple stochastic model for phylogenetic trees. New types are born and die according to a birth and death chain. At each birth we associate a fitness to the new type sampled from a fixed distribution. At each death the type with the smallest fitness is killed. We show that if the birth (i.e. mutation) rate is subcritical, we obtain a phylogenetic tree consistent with an influenza tree (few types at any given time and one dominating type lasting a long time). When the birth rate is supercritical, we obtain a phylogenetic tree consistent with an HIV tree (many types at any given time, none lasting very long).


2010 ◽  
Vol 152-153 ◽  
pp. 436-440
Author(s):  
Jun Zhao ◽  
Han Zhang ◽  
Zhi Wang ◽  
Hong Yan Zhai ◽  
Quan Xing Wen ◽  
...  

A new type of in-situ composite nano-multilayer plate with ultra-high strength (b 2112 MPa), Q235 steel plate with nano-layered structure of lath martensite produced by severe cold-rolling, was developed. After cold-rolling, subsequent annealing has great effect on the deformed lath morphology and grain refinement. Microstructure recrystallizing course have taken place after long time annealing at 350 °C. The recrystallization activation energy is 151 kJmol-1. Microstructure characteristics along rolling direction arrangement was decreased after annealing at 400 °C. In addition to the ultrafine ferrite grains, nano-carbides precipitated uniformly in the specimen annealed at 500 °C. Annealing at and above 600 °C resulted in coarse ferrite grains with spheroidized coarse carbides, causing grain growth. The average crystal size is about 4.7 m after annealing for 60 min at 600 °C.


2011 ◽  
Vol 341-342 ◽  
pp. 379-383
Author(s):  
Yi Liu ◽  
Qiang Bian ◽  
Xiang Jun Wang ◽  
Ji Dou

All the ships contain different metals, these metals in seawater has a different potential, soak a long time will corrupt slowly, that will affect the ship's life. In order to eliminate corrosion, we need to insulate the different metals, so that there is no corrosion current loop between them. In this paper, we developed a new type of insulation testing equipment to detect insulation for this situation. The equipment, using voltage measurement and resistance measurement for dual diagnosis, determine the degree of insulation. After the successful development of this device, a series of tests was done, get good results.


2011 ◽  
Vol 347-353 ◽  
pp. 1272-1275 ◽  
Author(s):  
Zhi Cheng Huang

For the lack of the dust removal and desulphurization equipment for ceramic industrial spray drying tower, we developed a new type of dust removal and desulphurization equipment, It uses four ways and seven grades remove dust, with double-barrel structure and self- clean system, and it can keep the ability of dust removal for a long time. Practice has proved that the equipment is cost low, easy maintenance, high efficiency, and with great promotion prospects.


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