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Collision carcinoma of the rectum involving neuroendocrine carcinoma and adenocarcinoma:A case report

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World Journal of Clinical Cases 2021年第18期9卷 4789-4796页

作者： xing zhao Gang Zhang chun-Hui Li Department of Pathology The Affiliated Hospital of Chengde Medical UniversityChengde 067000Hebei ProvinceChina Department of General Surgery IV Baoding First Central HospitalBaoding 071000Hebei ProvinceChina

BACKGROUND Collision carcinoma is a rare histological pattern,and includes two or more different types of tumors coexisting in the same organ as one *** to the combined type,the two adjacent tumors of collision carcinoma are histologically *** carcinoma may occur from any origin or organ,including the cecum,liver,cervix,thyroid,stomach,kidney,and *** the rectum,adenocarcinoma is the most common pathological type,the combined type is rare,and collision tumors are even *** date,only a limited number of collision carcinoma cases originating from the rectum have been *** to the scarcity of rectal collision carcinoma,more cases need to be reported to fully understand the clinico-pathological features and biological behavior of the *** SUMMARY Here we report a 40-year-old female who presented with the chief complaints of persistent changes in bowel habits and hematochezia for 10 *** underwent Miles'operation which revealed a collision carcinoma of the rectum,showing a“side by side”pattern,composed of a high grade neuroendocrine carcinoma,(small cell carcinoma)and moderately differentiated adenocarcinoma,based on its clinico-pathological features and biological *** patient remained disease-free at 12 mo *** also focused on the related literature and expert *** Collision carcinoma is a rare tumor with ambiguous biological *** attention should be paid to its clinico-pathologic *** and adequate follow-up is essential to help rule out metastasis and assess the prognosis.

关键词： Collision carcinoma Rectum Neuroendocrine carcinoma Adenocarcinoma Case report

Properties of second harmonic generation in nonlinear optical crystals CsLiB_6O_(10) and K_2Al_2B_2O_7

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The Journal of China Universities of Posts and Telecommunications 2006年第4期13卷 77-80页

作者： SOng chun-rong zhao Jian-jun LIU JIn Department of Basic Courses Ordnance Engineering College Shijiazhuang 050003 China

The phase-matching for nonlinear optical crystal, the nonlinear phase matching angle, effective nonlinear coefficient, walk-off angles, permitted angle, and permitted wavelength are obtained in type-I and type-II phase matching in ultraviolet （UV） nonlinear optical crystals CsLiB6O10 （CLBO） and K2Al2B2O7 （KABO） by detailed theoretical simulation. Through analysis and comparison, the phase matching characteristics of the second harmonic generation in the crystals are discussed when the wavelengths of the basic frequency lights turn continually.

关键词： nonlinear optical crystals phase matching second harmonic generation (SHG) properties

Synthesis of Crown Ether-tethered b-Cyclodextrin and Fabrication of Its Self-assembled Monolayer on Gold Surface

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Chinese Chemical Letters 2001年第10期12卷 891-892页

作者： Yu LIU Shi zhao KAng chun Hua DIAO Department of Chemistry Nankai UniversityTianjin 300071

A novel b-cyclodextrin derivative 6 bearing a crown ether moiety has been synthesized by a convenient method in 9.4% yield. Its self-assembled monolayer (SAM) was fabricated on the gold surface, which was characteriz... 详细信息

关键词： Cyclodextrin derivative crown ether self-assembled monolayer.

An Improved FastSLAM Algorithm Based on Revised Genetic Resampling and SR-UPF

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International Journal of Automation and computing 2018年第3期15卷 325-334页

作者： Tai-Zhi Lv chun-xia zhao Hao-Feng Zhang School of Computer Science and Technology Nanjing University of Science and Technology

FastSLAM is a popular framework which uses a Rao-Blackwellized particle filter to solve the simultaneous localization and mapping problem（SLAM）. However, in this framework there are two important potential limitations, the particle depletion problem and the linear approximations of the nonlinear functions. To overcome these two drawbacks, this paper proposes a new FastSLAM algorithm based on revised genetic resampling and square root unscented particle filter（SR-UPF）. Double roulette wheels as the selection operator, and fast Metropolis-Hastings（MH） as the mutation operator and traditional crossover are combined to form a new resampling method. Amending the particle degeneracy and keeping the particle diversity are both taken into considerations in this method. As SR-UPF propagates the sigma points through the true nonlinearity, it decreases the linearization errors. By directly transferring the square root of the state covariance matrix, SR-UPF has better numerical stability. Both simulation and experimental results demonstrate that the proposed algorithm can improve the diversity of particles, and perform well on estimation accuracy and consistency.

关键词： Simultaneous localization and mapping (SLAM) genetic algorithm square root unscented particle filter (SR-UPF) fastMetropolis-Hastings (MH) double roulette wheels.

Feedback analysis and design of inductive power links driven by Class-E amplifiers with variable coupling coefficients

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Journal of Zhejiang University-Science C(Computers and Electronics) 2010年第8期11卷 629-636页

作者： Tian-liang YAng chun-yu zhao Da-yue CHEN Institute of Intelligent Mechatronics Research School of Electronic Information and Electrical Engineering Shanghai Jiao Tong University Shanghai 200240 China

The efficiency of inductive power links driven by Class-E amplifiers may deteriorate due to variation in the coupling coefficient when the relative position of the radio frequency (RF) coils *** solve this problem,a new design methodology of power links is presented in this *** aim of the new design is to use the feedback signal,which is a phase difference between the driving signal and the output current of the Class-E amplifier,to adjust the duty cycle and angular frequency of the driving signal to maintain the optimum state of the inductive power link,and to adjust the supply voltage to keep the output power constant when the coupling coefficient of the RF coils *** parameter adjustments with respect to the coupling coefficient and the feedback signal are derived from the design equation of the inductive power *** validate the feedback control rules,a prototype of the inductive power link was constructed,and its performance validated with the coupling coefficient set at 0.2 and a duty cycle of *** experimental results showed that,by adjusting the duty cycle,the angular frequency,and the supply voltage,the power link can be kept in optimal operation with a constant output power when the coupling coefficient changes from 0.2 to 0.1 to 0.25.

关键词： Inductive power link Closed-loop Class-E amplifier High efficient Variable coupling coefficient

Population synthesis of high mass X-ray binaries

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Research in Astronomy and Astrophysics 2011年第3期11卷 327-334页

作者： Guo-Liang Lu chun-Hua Zhu zhao-Jun Wang School of Physics Xinjiang University .Urumqi 830046 China xinjiang University-National Astronomical ObserVatories Joint＇Center for Astrophysics Urumqi830046 China National Astronomical Observatories / Urumqi Observatory Chinese Academy of Sciences Urumqi 830011 China

By simulating the evolution of spin periods of magnetized neutron stars which interact with their environment in binary systems,we investigate the Galactic population of high mass X-ray binaries（HMXBs） .The number of HMXBs in the Galaxy is between 190 and 240,and their birthrate is from 5.9×10-5 yr-1 to 6.3× 10-5 *** the Corbet diagram（the positions of the spin periods *** orbital periods of HMXBs） in our model with the associated observations,we find that the stellar wind structure and the process of matter transfer are very important for understanding HMXBs.

关键词： stars:evolution—X-rays:binaries—Galaxy:stellar content

Facile Synthesis of Stable MO2N Nanobelts with High Catalytic Activity for Ammonia Decomposition

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Chinese Journal of Chemistry 2019年第4期37卷 364-372页

作者： Jun Xu Han Yan zhao Jin chun-Jiang Jia Key Laboratory for Colloid and Interface Chemistry Key Laboratory of Special Aggregated MaterialsSchool of Chemistry and Chemical EngineeringShandong UniversityJinanShandong 250100China

In the present work,high quality γ-Mo2N catalysts for ammonia decomposition were successfully synthesized via temperature programmed nitridation of α-MoO3 *** optimal conditions for the synthesis of MoO3 precursors were obtained by using the orthogonal experimental *** MoO3 precursors and the corresponding fresh and used Mo2N catalysts were characterized by various characterization techniques,including transmission electron microscopy,X-ray diffraction and N2 ***,temperature-programmed desorption by N2 or NH3 and X-ray photoelectron spectroscopy analysis were performed to better understand the chemical properties of Mo2N *** results revealed that Mo2N catalyst has good NH3 adsorption ability and facilitates the dissociation adsorption of ***,the morphology and structure of Mo2N catalysts well maintained after the ***,among the three transition metal nitrides(Mo2N,W2N and VN)and some Mo-based catalysts previously reported,Mo2N catalysts showed very high activity and *** 94% con version of NH3 could be reached at 550 ℃ with the gas hourly space velocity of 22 000 cm^3-gcat^-1·h^-1 and no obvious deactivation was observed during a 72 h test.

关键词： Stable MO2N Nanobelts High Catalytic Activity Ammonia Decomposition

（Anti-）de Sitter Black Hole Entropy and Generalized Uncertainty Principle

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Communications in Theoretical Physics 2006年第4X期46卷 635-638页

作者： zhao Ren ZHAng Li-chun HU Shuang-Qi Department of Environment and Safety Engineering North University of China Taiyuan 030051 China Department of Physics Yanbei Normal Institute Datong 037009 China

We generalize the method that is used to study corrections to Cardy-Verlinde formula due to generalized uncertainty principle and discuss corrections to Cardy-Verlinde formula due to generalized uncertainty principle in （anti）- de Sitter space. Because in de Sitter black hole spacetime the radiation temperature of the black hole horizon is different from the one of the cosmological horizon, this spacetime is a thermodynamical non-equilibrium spacetime.

关键词： entropy correction generalized uncertainty principle non-equilibrium spacetime

Design and derivation of the dual transponder carrier ranging system

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Journal of Zhejiang University-Science C(Computers and Electronics) 2013年第5期14卷 383-394页

作者： Ming-chen zhao chun-hui WAng Zhong-he JIN Department of Information Science and Electronic Engineering Zhejiang University

The accuracy of microwave ranging is mainly limited by the frequency instability of the oscillator that generates the carrier phase signal. A dual transponder carrier ranging method is used to minimize the oscillator noise by combining the reference and the to-and-fro measurements. This ranging approach together with pseudo-noise ranging or other means can be used to measure the inter-satellite distance with a high precision. The pseudo-noise ranging system or other ranging systems help to solve the integer circles while the dual transponder ranging system guarantees the accurate fractional circle. The two satellites work in the master-slave mode. The range measurements are derived on the master satellite while the slave satellite just coherently transfers the received signal, so that the dual transponder ranging system does not need to rely on the time tagging system to synchronize the two satellites. This study first describes the dual transponder carrier ranging system and shows how the system removes most of the oscillator noise components effectively. Then, a detailed design scheme on the frequency planning of the ranging system is presented and the supporting analysis illustrates the feasibility of this system. Based on the design innovation, a laboratory demonstration system is assembled to verify the realizability of the dual transponder ranging system. The experimental results demonstrate that a high level of accuracy (about 30 μm under laboratory circumstance) can be achieved by the use of the proposed dual transponder carrier ranging system.

关键词： Inter-satellite Carrier ranging Oscillator noise High precision Ranging accuracy