Results 121 to 130 of about 538,368 (282)

Management rectification column close to the optimal

Башкирский химический журнал, 2011
We solve the problem of robust control rectification column close to the optimal mathematical model which can be affected by parametric and external uncontrollable disturbances. The problem is solved by the introduction of the auxiliary circuit a specially structure, which allowed, how to select the uncertainty acting on the object management and ...
openaire   +1 more source

Two‐Dimensional Heterostructures: From Controlled Synthesis to Post‐Moore Device Applications

Information &Functional Materials, EarlyView.
This schematic summarizes four typical configurations of two‐dimensional (2D) heterostructures. It also demonstrates their core applications in high‐performance logic transistors, neuromorphic computing, ultra‐broadband photodetection, and multifunctional integrated devices, visually illustrating the diverse development prospects of 2D heterostructures
Jianing Xie, Zijian Niu, Baihui Zhang, Zhengwei Zhang   +3 more
wiley   +1 more source

Trade Measures—Relationships and Implications

International Journal of Finance &Economics, EarlyView.
ABSTRACT Various value‐added trade measures have been developed to address the concern in the growing volume of trade in intermediates that are double counted when crossing international borders more than once. This paper raises a query and makes an inquiry into the query.
Peijie Wang, Zhiyuan Liu
wiley   +1 more source

Improving the Efficiency of the Gasoline Fraction Separation Column

Some refineries’ secondary distillation units for gasoline fractions face the problem of insufficient rectification clarity, which depends on the process mode and the quality of the crude oil being processed.
Mariya Lovchikova, Aleksandr Gantsev, Alsu Samikova   +2 more
core   +1 more source

Rethinking ethanol separation in continuous spirit production from a process intensification perspective

Journal of Chemical Technology &Biotechnology, EarlyView.
Abstract Continuous neutral‐alcohol and food‐grade ethanol production is an energy‐intensive process in which distillation and rectification alone account for 50–85% of total plant energy use. While significant advances in separation technology have emerged over the past two decades, the spirits industry continues to rely predominantly on multi‐effect ...
Anton A Kiss
wiley   +1 more source

Cyclic rectification technology in alcohol production

, 2019
Alternate changing of the steaming periods and liquid overflow allows to intensify mass transfer between liquid and steam and to reduce the specific consumption of heating steam in the process of separation of multicomponent mixtures. The authors propose
Melnyk, Iryna, Shiyan, Peter, Bulii, Yurii, Kuts, Anatoly   +3 more
core   +1 more source

THE INFLUENCE OF MARANGONI EFFECT BY RECTIFICATION OF MIXTURES CHLOROFORM – BENZENE AND METHANOL - WATER [PDF]

, 2015
Rectification is a basic industrial method for separation of liquid homogeneous multicomponent mixtures to obtain individual components of high purity. Surface tension is hydrodynamic phenomen with complex effect on the kinetics of mass transfer process.
Mariana Kataivanova, Zhelcho Stefanov
core  

Good Engineering Beats Good Metrics

Journal of the Society for Information Display, EarlyView.
Contact‐controlled transistors should be judged by how their device characteristics combine to deliver circuit‐ and system‐level outcomes, rather than by isolated headline metrics. In display applications, low saturation voltage and output conductance can reduce supply voltage and improve uniformity, while contact engineering and asymmetric switch ...
Eva Bestelink, Morgan Sabine, Pongsakorn Sihapitak, Mark D. Ilasin, Juan Paolo Bermundo, Yukiharu Uraoka, Francesco Maita, Luca Maiolo, Radu A. Sporea   +8 more
wiley   +1 more source

Simulation and Analysis of the Cascade Process for ¹³⁶Xe Isotope Separation Based on Microchannel Distillation Technology

Zhileng xuebao
Conventional distillation methods face significant challenges in xenon isotope separation. This paper proposes a cascaded distillation system based on a microchannel distillation （MCD） apparatus for 136Xe enrichment. The relative volatilities， saturation
Wang Shibo, Yin Liang, Ju Yonglin
doaj   +2 more sources

Functional Dissociation Between Cervical VEMP and Posterior Canal vHIT in 1770 Unselected Ears

The Laryngoscope, EarlyView.
Cervical VEMP and posterior canal vHIT are conventionally treated as measures of a single inferior vestibular unit. In 1770 unselected ears from a diagnosis‐agnostic registry, the two tests disagreed in 72.7% of ears abnormal on at least one test, with chance‐corrected agreement near zero (κ = 0.097) and unchanged across age strata.
Fumiyuki Goto, Yukiko Tsuda, Koichiro Wasano   +2 more
wiley   +1 more source