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The energy consumption in a batch stripper and a batch rectifier

Xianbao CUI, Tianyang FENG, Ying ZHANG, Zhicai YANG,

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 4,   Pages 443-452 doi: 10.1007/s11705-009-0266-6

Abstract: energy consumption of a batch stripper was compared to that of a batch rectifier under “general constantreflux” and “general constant distillate composition” with the ratio of minimum energyenergy consumption of a batch stripper is less than that of a batch rectifier under “general constantreflux” and “general constant distillate composition”.relative volatility is low, a batch stripper can also consume less energy only in the “general constant

Keywords： constant reflux     feed     energy consumption     general constant     product purity    

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Improved control of hypertension following laparoscopic fundoplication for gastroesophageal reflux disease

Zhiwei Hu,Meiping Chen,Jimin Wu,Qing Song,Chao Yan,Xing Du,Zhonggao Wang

Frontiers of Medicine 2017, Volume 11, Issue 1,   Pages 68-73 doi: 10.1007/s11684-016-0490-7

Abstract:

This study aims to determine whether successful laparoscopic fundoplication for gastroesophageal refluxuse of antihypertensive medications and the quality of blood pressure control before and after anti-refluxThis result suggests a possible connection between gastroesophageal reflux and hypertension.

Keywords： gastroesophageal reflux disease     hypertension     blood pressure     laparoscopic fundoplication    

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A belated revelation: from gastroesophageal reflux derived asthma to laryngotracheal irritation even

WANG Zhonggao

Frontiers of Medicine 2008, Volume 2, Issue 2,   Pages 127-129 doi: 10.1007/s11684-008-0023-0

Abstract: The author has been inspired by the Global Evidence-Based Consensus for gastroesophageal reflux (GER), which put forward four extra-esophageal syndromes: reflux cough syndrome, reflux laryngitis syndrome, reflux dental erosion syndrome and the reflux asthma syndrome.A nozzle-shaped pharynx was found in patients with the reflux.Gradually a hypothesis of a gastro-oesophago-laryngo-tracheal reflux took shape.Our modest effort to

Keywords： laryngotracheal irritation/spasm     gastro-oesophago-laryngo-tracheal     sequence     fundaplication     encouraging    

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Insult of gastroesophageal reflux on airway: clinical significance of pharyngeal nozzle

Zhonggao Wang,Zhiwei Hu,Jimin Wu,Feng Ji,Hongtao Wang,Yungang Lai,Xiang Gao,Yachan Ning,Chengchao Zhang,Zhitong Li,Weitao Liang,Jianjun Liu

Frontiers of Medicine 2015, Volume 9, Issue 1,   Pages 117-122 doi: 10.1007/s11684-014-0343-1

Abstract: However, people mostly, including many medical personnel, do not know how badly the gastroesophageal refluxZhonggao Wang had suffered it for long and symptoms disappeared for 8 years after anti-reflux surgery

Keywords： gastroesophageal reflux     airway     pharyngeal nozzle     micro-aspiration     asthma    

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Research progress on low dielectric constant modification of cellulose insulating paper for power transformers

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 8,   Pages 991-1009 doi: 10.1007/s11705-022-2259-7

Abstract: insulation level of ultrahigh voltage transformers and reduce their weight and size, reducing the dielectric constantThe dielectric constant of a cellulose insulating paper can be effectively reduced by chemical or physicalforeign and domestic research status of the use of modification technology to reduce the dielectric constantThis paper can provide a reference for further research on low dielectric constant cellulose insulating

Keywords： low dielectric constant     chemical and physical modification     cellulose insulating paper     transformer    

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Analysis and characterization of wind-solar-constant torque spring hybridized model

Shantanu ACHARYA,Subhadeep BHATTACHARJEE

Frontiers in Energy 2014, Volume 8, Issue 3,   Pages 279-289 doi: 10.1007/s11708-014-0312-z

Abstract: Solar and wind are the most promising renewable energy resources. But their unpredictable and varying nature prevents them from being used as the sole resource for power generation. This paper presents a model of wind and solar thermal hybrid power plant with a spring storage system which is expected to play an efficient role in combating with the drawbacks related to renewable power generation. In the proposed scheme, wind energy is harnessed by a hybrid vertical axis wind turbine, solar energy is utilized by a Stirling engine, and the surplus energy is stored in a winding spring. The paper discusses the working methodologies and analyses the performance of such 2.6 kW hybrid power plant model. It has been observed that the plant is capable of consistently generating 50% of its rated capacity irrespective of limitations in solar and wind resources.

Keywords： hybrid vertical axis wind turbine     Stirling engine     solar-thermal energy     wind energy     constant torque spring    

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Development of a fan-stirred constant volume combustion chamber and turbulence measurement with PIV

Frontiers in Energy 2022, Volume 16, Issue 6,   Pages 973-987 doi: 10.1007/s11708-021-0762-z

Abstract: A fan-stirred combustion chamber is deve-loped for spherically expanding flames, with P and T up to 10 bar and 473 K, respectively. Turbulence characteristics are estimated using particle image velocimetry (PIV) at different initial pressures (P = 0.5–5 bar), fan frequencies (ω = 0–2000 r/min), and impeller diameters (D = 100 and 114 mm). The flame propagation of methanol/air is investigated at different turbulence intensities (u′=0–1.77 m/s) and equivalence ratios (φ = 0.7–1.5). The results show that u′ is independent of P and proportional to ω, which can be up to 3.5 m/s at 2000 r/min. LT is independent of P and performs a power regression with ω approximately. The turbulent field is homogeneous and isotropic in the central region of the chamber while the inertial subrange of spatial energy spectrum is more collapsed to –5/3 law at a high ReT. Compared to laminar expanding flames, the morpho-logy of turbulent expanding flames is wrinkled and the wrinkles will be finer with the growth of turbulence intensity, consistent with the decline of the Taylor scale and the Kolmogorov scale. The determined SL in the present study is in good agreement with that of previous literature. The SL and ST of methanol/air have a non-monotonic trend with φ while peak ST is shifted to the richer side compared to SL. This indicates that the newly built turbulent combustion chamber is reliable for further experimental study.

Keywords： fan-stirred combustion chamber     turbulence characteristics     particle image velocimetry (PIV)     methanol     turbulent expanding flames    

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Effect of laparoscopic fundoplication treatment on gastroesophageal reflux disease-related respiratory

Zhong-Gao WANG MD, FACS, Feng JI MD, PhD, Yun-Gang LAI MD, PhD, Xiang GAO MD, PhD, Cheng-Chao ZHANG MD, PhD, Ji-Min WU MD, PhD, Xiu CHEN MD, PhD, Ibrahim M. IBRAHIM MD, FACS,

Frontiers of Medicine 2010, Volume 4, Issue 2,   Pages 254-258 doi: 10.1007/s11684-010-0029-2

Abstract: Gastroesophageal reflux disease (GERD) was diagnosed and fundoplication was performed, which relievedOf these, 60 patients had respiratory symptoms mainly combined with gastroesophageal reflux, while four

Keywords： gastroesophageal reflux disease     pH monitoring     laparoscopic fundoplication     respiratory symptom    

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Solar photovoltaic fed dual input LED lighting system with constant illumination control

Kinattingal SUNDARESWARAN,Kevin Ark KUMAR,Payyalore Raman VENKATESWARAN,Sankaran PALANI

Frontiers in Energy 2016, Volume 10, Issue 4,   Pages 473-478 doi: 10.1007/s11708-016-0420-z

Abstract: A dual input LED lighting scheme with constant illumination is proposed in this paper.microcontroller is programmed to operate a changeover switch as well as a DC-DC converter for uninterrupted and constant

Keywords： photovoltaic     LED light     dual input     P&O algorithm    

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Outcome of Stretta radiofrequency and fundoplication for GERD-related severe asthmatic symptoms

Zhiwei Hu,Jimin Wu,Zhonggao Wang,Yu Zhang,Weitao Liang,Chao Yan

Frontiers of Medicine 2015, Volume 9, Issue 4,   Pages 437-443 doi: 10.1007/s11684-015-0422-y

Abstract: A total of 137 gastroesophageal reflux disease (GERD) patients with severe asthmatic symptoms who responded

Keywords： asthma     gastroesophageal reflux     Stretta radiofrequency     laparoscopic Nissen fundoplication    

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Calculation of Bond-length, Bond-energy and Force Constant of Hydrogen Molecule by Classical Mechanics

Chen Jing

Strategic Study of CAE 2003, Volume 5, Issue 6,   Pages 39-43

Abstract: scale is used, therefore in hydrogen molecule the product of energy and time is far larger than Planck Constantmechanics, and the hydrogen molecule bond-length Re, bonding-energy De and force constant

Keywords： hydrogen molecule     bond-length     bond-energy     force constant    

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A Novel Variable Speed Constant Frequency Doubly Fed Salient Pole Synchronous Machine

Ning Yuquan

Strategic Study of CAE 2004, Volume 6, Issue 12,   Pages 27-31

Abstract:

This paper presents a novel variable speed constant frequency doubly fed salient pole synchronousand construction of variable speed salient pole synchronous machines, especially on variable speed constantIt makes machine to achieve good character of variable speed constant frequency.

Keywords： salient pole synchronous machines     doubly fed variable speed constant frequency     AC excited    

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Constant temperature control of tundish induction heating power supply for metallurgical manufacturing

Yufei YUE, Qianming XU, Peng GUO, An LUO

Frontiers in Energy 2019, Volume 13, Issue 1,   Pages 16-26 doi: 10.1007/s11708-018-0572-0

Abstract: Specially, the constant temperature control is greatly significant for metallurgical manufacturing.In terms of the relationship between TIH load temperature and output power of TIHPS, the constant temperatureharmonic current blocking strategy and a load voltage feedforward control are also proposed to realize constant

Keywords： tundish induction heating power supply (TIHPS)     constant temperature control     input harmonic current blocking    

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Seismic response of precast reinforced concrete wall subjected to cyclic in-plane and constant out-of-plane

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 5,   Pages 1128-1143 doi: 10.1007/s11709-021-0753-5

Abstract: This paper provides insight into the seismic behavior of a full-scale precast reinforced concrete wall under in-plane cyclic loading combined with out-of-plane loading replicated by sand backfill to simulate the actual condition of basement walls. The tested wall exhibited flexural cracks, owing to the high aspect ratio and considerable out-of-plane movement due to lateral pressure from the backfill. The wall performed satisfactorily by exhibiting competent seismic parameters and deformation characteristics governed by its ductile response in the nonlinear phase during the test with smaller residual drift. Numerical analysis was conducted to validate experimental findings, which complied with each other. The numerical model was used to conduct parametric studies to study the effect of backfill density and aspect ratio on seismic response of the proposed precast wall system. The in-plane capacity of walls reduced, while deformation characteristics were unaffected by the increase in backfill density. An increase in aspect ratio leads to a reduction in in-plane capacity and an increase in drift. Curves between the ratio of in-plane yield capacity and design shear load of walls are proposed for the backfill density, which may be adopted to determine the in-plane yield capacity of the basement walls based on their design shear.

Keywords： precast wall     basement wall     out-of-plane response     quasi-static test     sand backfill     seismic parameters    

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Convective heat transfer in helical coils for constant-property and variable-property flows with high

Yufei MAO, Liejin GUO, Bofeng BAI, Ximin ZHANG

Frontiers in Energy 2010, Volume 4, Issue 4,   Pages 546-552 doi: 10.1007/s11708-010-0116-8

Abstract: Both constant-property flows at normal pressure and variable-property flows at supercritical pressure

Keywords： convective heat transfer     helical coils     high Reynolds number     supercritical pressure     variable property    

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Title Author Date Type Operation

The energy consumption in a batch stripper and a batch rectifier

Xianbao CUI, Tianyang FENG, Ying ZHANG, Zhicai YANG,

Journal Article

Improved control of hypertension following laparoscopic fundoplication for gastroesophageal reflux disease

Zhiwei Hu,Meiping Chen,Jimin Wu,Qing Song,Chao Yan,Xing Du,Zhonggao Wang

Journal Article

A belated revelation: from gastroesophageal reflux derived asthma to laryngotracheal irritation even

WANG Zhonggao

Journal Article

Insult of gastroesophageal reflux on airway: clinical significance of pharyngeal nozzle

Zhonggao Wang,Zhiwei Hu,Jimin Wu,Feng Ji,Hongtao Wang,Yungang Lai,Xiang Gao,Yachan Ning,Chengchao Zhang,Zhitong Li,Weitao Liang,Jianjun Liu

Journal Article

Research progress on low dielectric constant modification of cellulose insulating paper for power transformers

Journal Article

Analysis and characterization of wind-solar-constant torque spring hybridized model

Shantanu ACHARYA,Subhadeep BHATTACHARJEE

Journal Article

Development of a fan-stirred constant volume combustion chamber and turbulence measurement with PIV

Journal Article

Effect of laparoscopic fundoplication treatment on gastroesophageal reflux disease-related respiratory

Zhong-Gao WANG MD, FACS, Feng JI MD, PhD, Yun-Gang LAI MD, PhD, Xiang GAO MD, PhD, Cheng-Chao ZHANG MD, PhD, Ji-Min WU MD, PhD, Xiu CHEN MD, PhD, Ibrahim M. IBRAHIM MD, FACS,

Journal Article

Solar photovoltaic fed dual input LED lighting system with constant illumination control

Kinattingal SUNDARESWARAN,Kevin Ark KUMAR,Payyalore Raman VENKATESWARAN,Sankaran PALANI

Journal Article

Outcome of Stretta radiofrequency and fundoplication for GERD-related severe asthmatic symptoms

Zhiwei Hu,Jimin Wu,Zhonggao Wang,Yu Zhang,Weitao Liang,Chao Yan

Journal Article

Calculation of Bond-length, Bond-energy and Force Constant of Hydrogen Molecule by Classical Mechanics

Chen Jing

Journal Article

A Novel Variable Speed Constant Frequency Doubly Fed Salient Pole Synchronous Machine

Ning Yuquan

Journal Article

Constant temperature control of tundish induction heating power supply for metallurgical manufacturing

Yufei YUE, Qianming XU, Peng GUO, An LUO

Journal Article

Seismic response of precast reinforced concrete wall subjected to cyclic in-plane and constant out-of-plane

Journal Article

Convective heat transfer in helical coils for constant-property and variable-property flows with high

Yufei MAO, Liejin GUO, Bofeng BAI, Ximin ZHANG

Journal Article