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A photothermal reservoir for highly efficient solar steam generation without bulk water

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Science Bulletin 2019年第21期64卷 1625-1633页

作者： Xuan Wu ting gao Chenhui Han Jingsan Xu Gary Owens Haolan Xu Future Industries Institute University of South AustraliaMawson Lakes CampusSA 5095Australia School of Chemistry Physics and Mechanical EngineeringQueensland University of TechnologyBrisbaneQLD 4001Australia

A solid photothermal reservoir is designed to implement solar-steam generation in the absence of bulk *** photothermal reservoir is composed of a water absorbing core encapsulated by a photothermal reduced graphene oxide based aerogel sheet which absorbs light and converts it into heat thus evaporating the stored *** photothermal reservoir is able to store 6.5 times its own weight in water,which is sufficient for one day solar evaporation,thus no external water supplement is *** solar-steam generation,since no bulk water is involved,the photothermal reservoir minimizes heat conduction loss,and maximizes both of the exposed evaporation surface area and net energy gain from the environment,leading to an energy efficiency beyond the theoretical *** extremely high water evaporation rate of 4.0 kg m-2 h-1(normalized to projection area)is achieved in laboratory studies over a cylinder photothermal reservoir with a diameter of 5.2 cm and a height of 15 cm under 1.0 sun *** evaluation of the photothermal reservoir outdoors as part of a desalination device demonstrates a similar evaporation rate where the salinity of the clean water produced is lower than 24 *** the photothermal reservoir shows great potential for real world applications in portable solarthermal desalination.

关键词： Solar-steam generation Photothermal Aerogel Solar-thermal energy

Active straining engineering on self-assembled stacked Ni-based hybrid electrode for ultra-low overpotential

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Journal of Energy Chemistry 2023年第2期77卷 217-226,I0006页

作者： Shujie Liu Rui-ting gao Xianhu Liu Xueyuan Zhang Limin Wu Lei Wang College of Chemistry and Chemical Engineering Inner Mongolia UniversityHohhot 010021Inner MongoliaChina Key Laboratory of Materials Processing and Mold Ministry of EducationZhengzhou UniversityZhengzhou 450002HenanChina State Key Laboratory of Chemo/Biosensing and Chemometrics College of Chemistry and Chemical EngineeringHunan UniversityChangsha 410082HunanChina Department of Materials Science State Key Laboratory of Molecular Engineering of PolymersFudan UniversityShanghai 200433China

Generating sufficient strains on metal surfaces are highly challenging owing to that most metals can deform plastically to relax the strains on the *** this work,we developed a facile but highly efficient stacked deposition strategy to in situ activation and reconstruction of NiO/NiOOH on Ni matrix,following with the migration of Fe ions to *** Fe sites on the Ni/NiO/NiOOH facilitate the formation of the stable*OH oxygenated intermediates,and the Ni matrix in the catalyst provides the catalyst excellent *** oxygen evolution reaction(OER)performance of the stacked NiFe-5 with compressive strain displays the strengthened binding to oxygenated intermediates and superior OER activity,the ultralow overpotentials of 162 versus reversible hydrogen electrode at 10 mA cm^(-2).On the other hand,the Ni-5 without the incorporation of Fe has shown an outstanding hydrogen evolution reaction(HER)activity,affording an overpotential of 47 mV at 10 mA cm^(-2).The NiFe-5‖Ni-5 enables the overall water splitting at a voltage of 1.508 V to achieve 20 mA cm^(-2) with remarkable *** stacked deposition strategy improves binding strength of Ni-based catalysts to oxygenated intermediates via generating compressive strain,causing high catalytic activities on OER and HER.

关键词： Ni-based catalysts Self-assembly stacked structure Ultra-low overpotential Water splitting

Pulsar timing residuals due to individual non-evolving gravitational wave sources

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Research in Astronomy and Astrophysics 2014年第4期14卷 390-400页

作者： Ming-Lei Tong Cheng-Shi Zhao Bao-Rong Yan ting-gao Yang Yu-Ping gao National Time Service Center Chinese Academy of Sciences Key Laboratory of Time and Frequency Primary Standards Chinese Academy of Sciences Key Laboratory of Precision Navigation and Timing Technology Chinese Academy of Sciences

The pulsar timing residuals induced by gravitational waves from non- evolving single binary sources are affected by many parameters related to the relative positions of the pulsar and the gravitational wave sources. We will analyze the various effects due to different parameters. The standard deviations of the timing residuals will be calculated with a variable parameter fixing a set of other parameters. The or- bits of the binary sources will be generally assumed to be elliptical. The influences of different eccentricities on the pulsar timing residuals will also be studied in detail. We find that the effects of the related parameters are quite different, and some of them display certain regularities.

关键词： gravitational waves: general -- pulsars: general -- binaries: general

Clinical features and in vivo confocal microscopy assessment in 12 patients with ocular cicatricial pemphigoid

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International Journal of Ophthalmology(English edition) 2016年第5期9卷 730-737页

作者： Qin Long Ya-Gang Zuo Xue Yang ting-ting gao Jie Liu Ying Li Department of Ophthalmology Peking Union Medical College HospitalChinese Academy of Medical Sciences & Peking Union Medical College Department of Dermatology Peking Union Medical College HospitalChinese Academy of Medical Sciences & Peking Union Medical College

AIM： To describe the clinical features and microstructural characteristics assessed by in vivo confocal microscopy（IVCM） in patients with ocular cicatricial pemphigoid（OCP）.· METHODS： A descriptive, uncontrolled case series study. Patients diagnosed with OCP were examined by clinical history, slit-lamp biomicroscopy features and IVCM images. The results of direct immunofluorescence（DIF） biopsies and indirect immunofluorescence（IIF） were also recorded. Local and systemic immunosuppressive therapy were administered and adjusted according to response.·RESULTS： A total of 12 consecutive OCP patients（7male, 5 female; mean age 60.42 ±10.39y） were *** patients exhibited bilateral progressive conjunctival scarring and recurrent chronic conjunctivitis was the most frequent clinical pattern. The mean duration of symptoms prior to diagnosis of OCP was 2.95 ±2.85y（range： 5mo to 10y）. The Foster classification varied from stage I to IV and 20 eyes（83%） were within or greater than Foster stage Ⅲ on presentation. Two of the 12patients（17%） demonstrated positive DIF; 3 of the 12（25%） patients reported positive IIF. The mean duration of the follow-up period was 20.17 ±11.88mo（range： 6 to48mo）. IVCM showed variable degrees of abnormality in the conjuctiva-cornea and conjuctival scarring was detected in all the involved eyes. Corneal stromal cell activation and dendritic cell infiltration presented asocular surface inflammation, ocular surface keratinization along with the destroyed Vogt palisades was noted in eyes with potential limbal stem cell deficiency. After treatment, remission of ocular surface inflammation was achieved in all the patients, 18 eyes（75%） remained stable, 6 eyes（25%） had recurrent conjunctivitis and cicatrization in 2 eyes（8%） was progressing.· CONCLUSION： As an autoimmune disease, OCP manifests as variable degrees of clinical and laboratory abnormalities with both local and systemic immunosuppressive treatment playing important roles in disease therap

关键词： ocular cicatricial pemphigoid ocular surface disease in vivo confocal microscopy

A cobalt oxide@polydopamine-reduced graphene oxide-based 3D photothermal evaporator for highly efficient solar steam generation

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Tungsten 2020年第4期2卷 423-432页

作者： ting gao Xuan Wu Gary Owens Hao‑Lan Xu Future Industries Institute University of South AustraliaAdelaideSA 5095Australia

Improving the evaporation rate and energy efficiency of solar steam generation is very important to facilitate real-world applications for clean water *** this work,Co_(3)O_(4)@polydopamine(PDA)nanoparticles were synthesized and combined with reduced graphene oxide(rGO)to fabricate a new Co_(3)O_(4)@PDA-rGO photothermal *** obtained pho-tothermal aerogel sheet was thereafter used to prepare both two-dimensional(2D)and three-dimensional(3D)photothermal evaporators for solar steam *** to the excellent light absorption and hydrophilicity of the photothermal aerogel,a high evaporation rate of 1.60 kg·m^(−2)·h^(−1) was achieved for the 2D photothermal *** for the 3D evaporator,the evaporation rate was dramatically increased to 3.71 kg·m^(−2)·h^(−1) with a corresponding light-to-vapor energy efficiency of 107%.This was attributed to an increased evaporation surface area,decreased energy loss from the top evaporation surface to the environment,and energy gain from the environment on the side evaporation *** 3D evaporator also showed excellent practical performance in seawater desalination thus demonstrating great potential for real-world applications.

关键词： Solar-steam generation Cobalt oxide Polydopamine Reduced graphene oxide Photothermal materials Seawater desalination

The first record of freshwater plesiosaurian from the Middle Jurassic of Gansu, NW China, with its implications to the local palaeobiogeography

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Journal of Palaeogeography 2019年第4期8卷 360-367页

作者： ting gao Da-Qing Li Long-Feng Li Jing-Tao Yang Institute of Vertebrate Paleontology and College of Life Science and Technology Gansu Agricultural University

Plesiosaurs are one of the common groups of aquatic reptiles in the Mesozoic,which mainly lived in marine *** plesiosaurs are rare in the world,especially from the *** present paper reports the first freshwater plesiosaur,represented by four isolated teeth from the Middle Jurassic fluviolacustrine strata of Qingtujing area,Jinchang City,Gansu Province,Northwest *** teeth are considered to come from one *** comparative analysis of the corresponding relationship between the body and tooth sizes of the known freshwater plesiosaur shows that Jinchang teeth represent a small-sized *** on the adaptive radiation of plesiosaurs and the palaeobiogeographical context,we propose a scenario of a river leading to the Meso-Tethys in the Late Middle Jurassic in Jinchang area,which may have provided a channel for the seasonal migration of plesiosaurs.

关键词： Freshwater plesiosaur Middle Jurassic Jinchang Gansu Province Palaeobiogeography

Mechanisms of hydrocephalus after intraventricular haemorrhage in adults

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Stroke & Vascular Neurology 2016年第1期1卷 23-27页

作者： Yaoyao Bu Meiyuan Chen ting gao Xiao Wang Xuting Li Feng gao Department of Neurology Second Affiliated Hospital of Zhejiang University School of MedicineHangzhouZhejiangChina

Intraventricular haemorrhage(IVH)is defined as the eruption of blood in the cerebroventricular system and occurs mostly secondary to intracerebral haemorrhage(ICH)in *** is a severe complication of IVH that can serve as an independent predictor of increased *** this mini-review,we focus on the mechanisms of hydrocephalus after adult IVH,including blood-clot blockage,barrier impairment,inflammation and blood components,and attempt to reconcile the current research findings into a unified *** expect our theoretical framework to help guide future clinical and basic research leading to improved monitoring and intervention for IVH and subsequent hydrocephalus.

关键词： ventricular hydrocephalus mortality

Imprints of relic gravitational waves on pulsar timing

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Research in Astronomy and Astrophysics 2016年第3期16卷 111-120页

作者： Ming-Lei Tong Yong-Heng Ding Cheng-Shi Zhao Feng gao Bao-Rong Yan ting-gao Yang Yu-Ping gao National Time Service Center Chinese Academy of SciencesXi'an 710600China Key Laboratory of Time and Frequency Primary Standards Chinese Academy of SciencesXi'an 710600China Key Laboratory for Research in Galaxies and Cosmology Chinese Academy of SciencesHefei 230026China University of Chinese Academy of Sciences Beijing 100049China Key Laboratory of Precision Navigation and Timing Technology Chinese Academy of SciencesXi'an 710600China

Relic gravitational waves （RGWs）, a background originating during inflation, would leave imprints on pulsar timing residuals. This makes RGWs an important source for detection of RGWs using the method of pulsar timing. In this paper, we discuss the effects of RGWs on single pulsar timing, and quantitatively analyze the timing residuals caused by RGWs with different model parameters. In principle, if the RGWs are strong enough today, they can be detected by timing a single millisecond pulsar with high precision after the intrinsic red noises in pulsar timing residuals are understood, even though simultaneously observing multiple millisecond pulsars is a more powerful technique for extracting gravitational wave signals. We correct the normalization of RGWs using observations of the cosmic microwave background （CMB）, which leads to the amplitudes of RGWs being reduced by two orders of magnitude or so compared to our previous works. We obtained new constraints on RGWs using recent observations from the Parkes Pulsar Timing Array, employing the tensor-to-scalar ratio r = 0.2 due to the tensor-type polarization observations of CMB by BICEP2 as a reference value, even though its reliability has been brought into question. Moreover, the constraints on RGWs from CMB and Big Bang nucleosynthesis will also be discussed for comparison.

关键词： gravitational waves: general -- pulsars: general -- inflation

Basic Ionic Liquid: A Reusable Catalyst for Knoevenagel Condensation in Aqueous Media

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Chemical Research in Chinese Universities 2007年第2期23卷 169-172页

作者： gao Guo-hua LU Liang ZOU ting gao Jin-bao LIU Ye HE Ming-yuan Shanghai Key Laboratory of Green Chemistry and Chemical Process Department of Chemistry East China Normal University Shanghai 200062 P. R. China

An efficient, environmentally friendly procedure was developed for the condensation of aldehydes/ketones and activated methylene compounds with basic ionic liquid as the catalyst in water. This basic ionic liquid catalyst has a very high activity for Knoevenagel condensation to give the corresponding products in 70%-97% isolated yields under mild conditions. The basic ionic liquid catalyst in aqueous system can be reused for six times without any significant loss of activity.

关键词： Knoevenagel condensation Aqueous media Ionic liquid