Immobilization of Nuclear Waste Using Carbon Nanotubes Prepared by Laser Ablation in Liquid Method

In an attempt to disposal from nuclear waste which threats our health and environments. Therefore we have to find appropriate method to immobilize nuclear waste. So, in this research the nuclear waste (Strontium hydroxide) was immobilized by Carbon nanotubes (CNTs). The Nd-YAG laser with wave length 1064 nm, energy 750 mJ and 100 pulses used to prepare CNTs. After that adding Sr(HO)2 powder to the CNTs colloidal in calculated rate to get homogenous mixing of CNTs-Sr(OH)2. The Sr(HO)2 absorbs carbon dioxide from the air to form strontium carbonate so, the new solution is CNTs-SrCO3. To dry solution putting three drops from the new solution on the glass slides. To investigate the radiation damage on CNTs structure, the sample was irradiation by Beta source (90Sr/90Y) for different period of time. The structure properties were measured using X-ray diffraction XRD while the shape and size property was measured by scanning electron microscope SEM. The result shows homogenous distribution of nanoparticles with average particle size about 20nm. The XRD spectra for all sample before and after irradiation shows the higher peaks that it’s almost appearance at 2 = 25 degree and when compared the XRD phase with Standard card the resultant nanomaterial is Strontium carbonite (SrCo3). From SEM micrograph, CNTs-SrCO3 were well decorated on the surface of CNTs and there was not any remarkable difference in the corresponding due to Beta radiation exposure.

RESEARCH ON INFORMATION ACQUISITION AND ACCURACY ANALYSIS OF ANCIENT ARCHITECTURE PLAQUE WITH COMMON SMART PHONE

The ancient architectural plaque is a unique cultural heritage of the Chinese traditional culture. It is called the "soul of ancient architecture" and has important historical and artistic value. Due to its small size and large quantity, the preservation status is not optimistic, and it is urgent to carry out rescue protection. It is especially necessary to complete its digital information collection first. The basic images used in photogrammetry are usually taken by professional cameras. With the continuous development of technology, the shooting ability of mobile phones is constantly increasing. The method of 3D reconstruction of plaque of ancient buildings by common mobile phone cameras is studied through experiments. Several common mobile phones were selected to collect images of ancient building plaques from different acquisition distances and 3D reconstruction experiments were carried out. The results of accuracy evaluation showed that the information of ancient architectural collected by common mobile phone cameras within the suitable acquisition range can meet the accuracy of 3D reconstruction. Requirements. In addition, the image control point measurement is replaced by a standard card. The experimental results show that the size of the model can be controlled by using the card constraint. The method can utilize the commonly used camera mobile phone to efficiently obtain the image of the ancient buildings distributed in various places and carry out three-dimensional reconstruction, thereby satisfying the urgent requirement of the urgent need for protection of the ancient buildings.

PEMANFAATAN TEKNOLOGI RFID (RADIO FREQUENCY IDENTIFICATION) DALAM LAYANAN REGISTRASI REKAM MEDIS PASIEN

Penelitian ini bertujuan mengembangkan sebuah aplikasi yang memanfaatkan teknologi RFID (Radio Frequency Identification) dalam layanan rumah sakit untuk pengelolaan layanan pendaftaran dan pencatatan rekam medis pasien. Berdasarkan studi pendahuluan mengenai layanan registrasi rekam medis pada rumah sakit, ditemukan permasalahan yaitu tugas staf pengelolaan unit pendaftaran lebih rumit karena pendataan pasien masih dilakukan secara manual, masih terdapat kesalahan pencatatan karena human error, penelusuran pasien membutuhkan waktu yang lama dan kurang efektif. Untuk mengurangi permasalahan tersebut, dikembangkan aplikasi RFID dalam layanan pencatatan dan registrasi rekam medis. Penelitian ini diawali dengan melakukan analisis sistem yang saat ini berjalan. Pengembangan aplikasi menggunakan perangkat RFID Read/Write yang terdiri dari RF Reader CV6600-USB SDK dengan frekuensi 13,56 MHz dan RFID Tag menggunakan MIFARE Standard Card MF1 ICS50. Sedangkan perangkat lunak aplikasi yang dikembangkan dalam penelitian ini menggunakan bahasa pemrograman visual Borland Delphi 7. Hasil penelitian menunjukkan bahwa RFID Tag jenis MIFARE standard card 1Kbyte termasuk tipe read or write mampu menyimpan informasi riwayat medis pasien. Penerapan sistem layanan rumah sakit dengan memanfaatkan teknologi identifikasi berbasis RFID memiliki indikasi perkembangan yang baik terhadap upaya peningkatan kualitas pelayanan, khususnya bagian pendaftaran dan unit pencatatan rekam medis. Kata kunci: registrasi pasien, RFID, reader, tag, rekam medis, penelusuran pasien.

Preparation and Catalytic Properties of BaSb2O6 Photocatalyst

The small-stones-like BaSb2O6 had been successfully prepared through two-step reaction by using inexpensive Sb2O3 reactant. The effects of reaction conditions (temperature, time) on photocatalytic efficiency were researched. The photocatalytic activity of BaSb2O6 was evaluated by photodegradation of methylene blue (MB). The results showed that the decolorization rate of methylene blue was over 90% under ultraviolet lamp (500 W) beam for 40min. Its structures and morphologies had been investigated by X-ray powder diffraction (XRD), scanning electron microscopy (SEM). The results showed that XRD pattern of BaSb2O6 was consistent with standard card and morphology of BaSb2O6 was smooth close-packed state "small stones", fine particles & no agglomeration.

Effect of Audit and Feedback on Improving Handovers: A Nonrandomized Comparative Study

Background High-quality, shift-to-shift handovers by residents are critical to ensuring to patient safety. The 2011 Accreditation Council for Graduate Medical Education duty hour requirements have increased the number of handovers occurring daily, necessitating new approaches to this challenge. Research suggests standardized approaches, electronic systems, and education programs can improve the handover process. Methods We conducted a 2-phase, observational study comparing an electronic handover system (experimental) in one clinical setting to a standard card-based system (control) at a second site. Outcome data included an objective assessment of the completeness and accuracy of handovers, and resident assessment of the handover systems. In phase 1, data were recorded at both sites and not shared with residents. In phase 2, data from the experimental system were used to provide standardized feedback to residents on the quality of their handovers. Results A total of 3184 individual patient sign-outs were evaluated during the 11-month period. Following introduction of a feedback intervention in the experimental arm, errors were present in only 5.2% of handovers, compared with 16.1% of controls (P < .001), and 67% of the 38 residents responding reported they perceived the experimental system as facilitating better patient care. Conclusion Regular, real-time feedback through an electronic handover system can improve the accuracy and completeness of handovers in patient care.

Ultrasonically Assisted Synthesis of Tin Sulfide Nanorods at Room Temperature

A simple ultrasonic method was developed to synthesize rod-like SnS nanocrystals, using tin chloride and thioacetamide as starting materials, ethanolamine and water as solvents. The as-obtained nanostructures were characterized by X-ray diffraction (XRD) study, energy-dispersive X-ray spectroscopy (EDS), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and Ultraviolet-visible spectrophotometry (UV). From the XRD pattern, the reflection peaks of the as-obtained samples can be indexed to the orthorhombic structure with lattice constants a = 3.99, b = 4.34, c = 11.20 Å , which are very consistent with the values in the standard card of SnS phase (JCPDS No. 39-0354). No characteristic peak was observed for other impurities such as SnO2 and SnS2, implying the formation of single-phase tin monosulfide. The quantification calculation shows the ratio of Sn/S to be 51.30/48.70 via the EDS analysis. These data clearly indicate that the as-prepared rod-like nanostructures are exactly SnS. TEM results show that, the SnS nanorods have length about 100nm and width less than 30nm. The direct and indirect band gaps of the SnS nanorods are determined to be 1.53 eV and 1.34 eV, respectively. The band gaps of the as-obtained SnS nanorods showed blue shifts due to the quantum size effects. The ultrasonic condition is believed to be critical for the formation of SnS with pure phase. For it provides the energy to form rod-like nanostructures and helps preventing the hydrolysis of Sn2+ to form tin oxides and hydrates. Also, it prevents oxidation of the final products.

Improving the attendance for new psychiatric out-patient referrals

A significant proportion of patients referred to psychiatric out-patient clinics fail to attend the first appointment. Previous work suggested that typically 30% do not attend (Burgess & Harrington, 1964; Skuse, 1975) and this results in an inefficient utilisation of psychiatrists' time. One solution would be to overbook new patients by 30%. Unfortunately the proportion of non-attendance at each clinic is variable and difficult to estimate in advance. Psychiatrists have been shown to be poor predictors of non-attendance from examining referral letters (Woods, 1992). Overbooking might result in a long waiting time and short time for assessment. Previous research has suggested patients are more likely to attend if they received a personal letter rather than a standard card, had a previous psychiatric history, and if they were seen in a health centre rather than a hospital (Hillis, 1990). Allaying the patient's fears and misconceptions about psychiatry also improved attendance (Skuse, 1975). Work in a child and family setting suggested that sending a family questionnaire prior to the appointment reduced the non-attendance rate (Mathai & Markantonakis, 1990).