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Femtosecond Degenerate Four-Wave-Mixing in ZnO Microcrystallite Thin Films

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Chinese Physics Letters 1999年第6期16卷 418-419页

作者： ZHANG Wei-li WANG Qing-yue CHAI Lu XING Qi-rong k.S.Wong H.Wang Z.k.Tang G.k.L.Wong R.Jain Ultrafast Laser Laboratory School of Precision Instruments&Optoelectronics Engineeringand Optoelectronic Information Science and Technology LaboratoryTianjin UniversityTianjin 300072 School of Science Tianjin UniversityTianjin 300072 Department of Physics Hong Kong University of Science and TechnologyClear Water BayKowloonHong Kong Center for High Technology Materials University of New Mexico1313 Goddard SEAlbuquerqueNM 87106USA

Transient third-order optical nonlinearityχ^(3)of ZnO microcrystallite thin films is measured at various temperatures by using femtosecond degenerate ***-temperature excitonic enhancement of is *** magnitude ofχ^(3)ranges between 10^(-4)to 10^(-6)esu from 4.2k.to room *** measuredχ^(3)response time ranging from 200 to 300 fs ultrafast for temperature down to 4.2k.

关键词： temperature. crystallite nonlinearity

Effects of Ionic Concentrations on Survival and Growth in Polyculture of Litopenaeus vannamei with Oreochromis niloticus in Low Salinity Water

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Journal of Agricultural Science and Technology(A) 2011年第8期1卷 1217-1220页

作者： k. Limhang C. Limsuwan N. Chuchird W. Taparhudee Aquatic Animal Production Technology Program Faculty of Animal Sciences and Agricultural Technology Silpakorn University Phetehaburi IT campus Sampraya Cha-am Phetchaburi 76120 Thailand Aquaculture Business Research Center Faculty of Fisheries Kasetsart University Bangkok 10900 Thailand

A study comparative of rearing of the Pacific white shrimp （Litopenaeus vannamei） with the Nile tilapia （Oreochromis niloticus） in three earthen ponds （5,600 m^2） with the salinity ranged from 0.5-1.2 ppt and three treatment ponds with salinity of 2-4 ppt by adding brine water into the ponds. Postlarvae 12 （PL12） of L. vannamei were stock.d at density of 9 PL/m^2 and after one week.the Nile tilapia fingerlings were stock.d at density of I fish/m^2. Only pelleted feed were given to the fish during the 196-day rearing period. Shrimps were partially harvested by sieve net at day 80 and 120, and five days later PLI2 were stock.d at the rate of 3 PL/m^2. After final harvesting at day 196, the production, body weight and survival from the treatment group were significantly higher （P 〈 0.05） than those of the control group. While the fish production body weight and survival rate from both groups were not significant differences （P 〉 0.051）. The ionic concentration of six major ions （CI, SO42, Ca^2＋, Na^＋, Mg^2＋ and k.＋）, salinity and hardness in the treatment ponds were significantly higher than those of the control ponds （P 〈 0.05）. Moreover, the ionic profiles of the treatment ponds were similar to seawater at the salinity of 2 ppt while only 1 ppt in the control ponds. Results from the study indicated that in order to achieve good growth and survival rate of L. vannamei, brine water should be added into grow-out ponds prior to stock.ng and during the rearing： period to obtain and maintain the salinity not less than 2 ppt.

关键词： Litopenaeus vannamei Oreochromis niloticus polyculture ionic concentration low salinity water

Effect of Co substitution on the structural,dielectric and optical properties of k.iFe_(2)O_(5)

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International Journal of Minerals,Metallurgy and Materials 2021年第11期28卷 1861-1867页

作者： k.Chandrak.nta R.Jena P.Pal Md.F.Abdullah S.D.k.ushik.A.k.Singh Department of Physics and Astronomy National Institute of TechnologyRourkela-769008OdishaIndia UGC-DAE Consortium for Scientific Research Mumbai Centre R-5 ShedBARCMumbai-400085India

Cobalt(Co)-modified brownmillerite k.iFe_(2)O_(5)(k.FO;[k.iFe_(2(1−x))Co_(2x)O_(5)(x=0,0.05)])polycrystalline is synthesized following the solid-state reaction *** refinement of X-ray diffraction data confirmed the phase purity of k.FO and k.iFe_(1.9)Co_(0.1)O_(5)(k.FCO).The optical bandgap energy(Eg)of k.FO decreased from 1.59 to 1.51 eV because of Co *** decrease in bandgap can be attributed to the tilting of the Fe–O tetrahedral structure of *** observed room-temperature Raman peak. of k.FCO shifted by 3 cm^(−1) toward a lower wavenumber than that of *** shift in Raman active modes can be attributed to the change in the bond angles and bond lengths of the Fe–O tetrahedral structure and modification in response to oxygen deficiency in k.FO because of Co *** with that of k.FO,the frequency-dependent dielectric constant and dielectric loss of k.FCO decrease at room temperature,which is a consequence of the reduction in oxygen migration and modification in response to vibrational modes present in the sample.

关键词： brownmillerite rietveld refinement Raman spectroscopy bandgap

Sensation of pleasant touch:from molecules to circuits and behaviours

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Signal Transduction and Targeted Therapy 2022年第9期7卷 3187-3189页

作者： Ruining Hul Rongfeng k.Hu Institute for Translational Brain Research Fudan UniversityShanghai 200032China Department of Psychology Zhongshan HospitalInstitute for Translational Brain ResearchState Key Laboratory of Medical NeurobiologyMOE Frontiers Center for Brain ScienceFudan UniversityShanghai 200032China

A recent study by Liu et *** a crucial role of the PROk.-PROk.2 signalling within the spinal circuit in pleasant touch sensation(Fig.1),providing the first evidence for the molecular and neural basis of how pleasant touch information is encoded and integrated from the sk.n to the spinal cord and highlighting the important role of neuropeptides in the processing of somatosensory information1(Fig.1).

关键词： sensation touch providing

Relative Contributions of Intraoperative Low Dose k.tamine, Lidocaine and k.tamine-Lidocaine Combination in Addition to Intrathecal Morphine for Postoperative Analgesia in Open Liver Resection: A Prospective, Randomized, Four-Arm, Triple Blind, Placebo-Controlled Trial

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Open Journal of Anesthesiology 2020年第9期10卷 313-326页

作者： Shalini Dhir Debashis Roy Tim Hall Yves Bureau Janice Yu Achal k. Dhir Department of Anesthesia and Perioperative Medicine Schulich School of Medicine London Ontario Canada Sunnybrook.Health Sciences Centre Department of Anesthesiology Toronto Ontario Canada Department of Anesthesia & Perioperative Medicine Auckland Hospital University of Auckland Auckland New Zealand Department of Psychology Department of Medical Biophysics Western University London Ontario Canada Department of Anesthesia Michael G. DeGroote School of Medicine McMaster University Hamilton Ontario Canada

Back.round and Aims: Open liver resection requiring an upper abdominal incision is associated with significant opioid use due to postoperative pain. We tested the hypothesis that the intraoperative combination of low ... 详细信息

Background and Aims: Open liver resection requiring an upper abdominal incision is associated with significant opioid use due to postoperative pain. We tested the hypothesis that the intraoperative combination of low dose lidocaine and ketamine would reduce opioid consumption when given in conjunction with intrathecal morphine for liver resection surgery. Methods: In this triple blind, parallel group four-arm placebo-controlled trial, we randomized 124 adult ASA 2 - 4 liver resection patients to receive intraoperative lidocaine 0.33 mg/kg/h (group L), ketamine 70 μg/kg/h (group K), combination of lidocaine 0.33 mg/kg/h and ketamine 70 μg/kg/h (group KL) and saline (group P). All patients received 300 μg intrathecal morphine prior to induction of anesthesia. All infusions were started immediately after intubation and continued until the end of surgery. Primary outcome measurements included opioid consumption at 24-hours. Secondary outcomes included pain scores, opioid consumption at 48 and 72-hours and side effects including nausea, vomiting, dizziness, hallucinations, headaches and signs of local anaesthetic toxicity. Patients were followed up for 12 weeks. Results: There was no difference in the primary outcome of opioid consumption within all 4 groups at rest or movement at 24-hours. Secondary outcome of 48-hour rest pain score was significantly higher in the L group (p = 0.03) but without any difference in opioid use.

Designing Parameters for RF CMOS Cells

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Circuits and Systems 2010年第2期1卷 49-53页

作者： Viranjay M. Srivastava k. S. Yadav G. Singh 不详

In this paper, we have investigated the design parameters of RF CMOS cells which will be used for switch in the wireless telecommunication systems. This RF switch is capable to select the data streams from the two antennas for both the transmitting and receiving processes. The results for the development of a cell-library which includes the basics of the circuit elements required for the radio frequency sub-systems of the integrated circuits such as V-I characteristics at low-voltages, contact resistance which is present in the switches and the potential barrier with contacts available in devices has been discussed.

关键词： CMOS Cell Library Contact Resistance DG MOSFET DP4T Switch Potential Barrier Radio Frequency RF Switch Resistance of MOS Voltage-Current Curve VLSI

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科林·鲍威尔

A　Study　on　the　Reaction　Mechanism　of　Bromocresol　Green　with　Bovine　Serum　Albumin

作者： (美)艾丽斯·k.弗拉纳根

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Chinese Chemical Letters 1996年第11期7卷 1029-1032页

作者： Zhu, k.Li, k. Tong, SY BEIJING UNIV DEPT CHEMBEIJING 100871PEOPLES R CHINA

The protein assay with bromocresol green (BCG) method is commonly ed because of itsconvenience, but it is not well understood on a molecular level. In this paper, the study on thereaction between BCG and bovine serum albumin (BSA) is reported The binding numbers and thebinding conStants are given at different pH by using three methods with relevant comparison. It wasProved that there were three sorts of binding siteS of BSA to react with BCG and BCG transformedinto its boo form in the presence of BSA.

关键词： Reaction Mechanism the Bovine Green Bromocresol

Minerogenetic mechanism of Rushan gold deposit, Shandong Province——Evidence of ore-forming fluid and H, O, Sr isotopes

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Chinese Science Bulletin 1997年第3期42卷 240-243页

作者： Zhai, JP Hu, k.Lu, JJ Department of Earth Sciences Nanjing University Nanjing China

THE Rushan gold deposit, being of quartz-vein type, is located in biotite monzonitic granite of k.nyushan complex pluton in eastern Shandong, China, and the orebody No. 2 is the largest mono-vein deposits found in China. The gold mineralization can be divided into three stages according to crisscross relations of the various microlodes in the deposit: Ⅰ. pre-ore stage of comb-structured milk.-white quartz veins; Ⅱ. main mineralization stage of multi-metal sulphides and siderite-quartz veins; Ⅲ. post-ore stage of mottled cryptocrystalline quartz veins.

关键词： granite quartz-vein type gold deposit ore-forming fluid origin of deposit.