Studi Kemampuan Vertical Subsurface Flow Constructed Wetland Dalam Menyisihkan Konsentrasi Tss, TDS, Dan Orp Pada Lindi Mengggunakan Tumbuhan Alang-alang (Typha Angustifolia)

In general, the leachate contains organic and inorganic substances with a high concentration that are toxic. Leachate TPS Industrial Estate Terboyo have TSS content of 530 mg / l, TDS 1930 ppm, and ORP value was 193 mv. Therefore, the processing of leachate is very important before being dumped directly into the recipient's body of water in order not give a bad influence on the quality of the environment. One of the technologies to manipulate the leachate i.e. using constructed wetlands. This research aims to know the decrease in concentration of TSS, TDS, and ORP with the system sub surface flow constructed wetland. The type of plant that used in this research is Typha angustifolia which has been used in several previous research (Hamdani, 2013) with a system of sub-surface flow constructed wetland to reduce the organic pollution load in wastewater. In addition, plant Typha angustifolia grows and develops around the site. The research was conducted with a residence time of 15 days. There are 4 reactors were observed and made in duplicate, with a variation of the number of plants, among other: 1 plant ,3 plants,5 plants, and without plant and the residence time variation among others: 3,6,9,12, and 15 days. Sampling was done with a variation interval of 3 days was based on the results of research conducted by Tangahu & Warmadewanthi (2001) and Ismaryanto (2012). System Vertical Subsurface Flow Constructed Wetlands by use of plant Thypa angustifolia could remove the concentration of TSS, TDS, and change the rate of ORP. Highest TSS removal efficiency in the reactor that contains 5 plants with a residence time of 15 days, amounting to 97.55% and for TDS occur in the reactor which contains 1 plant with a residence time of 6 days, by 77%. While the ORP value changes are not too significant, which is about 200 mV in the overall residence time

Development of a Reflectance Photoplethysmographic Sensor used for the Assessment of Perfusion of Free Jejunum Flaps: a case report

Free jejunum flaps have been widely used as a reconstruction option after total laryngopharyngectomy. Monitoring of flap perfusion assists in early detection of flap failure, increasing the possibility of flap salvage. Considering the free jejunum flap is a hidden flap there is still no single reliable, non invasive perfusion monitoring technique to assist in recognizing flap failure. We have developed a dual-wavelength photoplethysmographic (PPG) sensor and processing system to investigate the ability of the system in detecting flap perfusion. This is a case report of evaluation of the new prototype reflectance PPG sensor on one patient undergoing total laryngopharyngectomy and reconstruction with a free jejunum flap. PPG signals were successfully obtained intra-operatively which suggest that photoplethysmography may be a suitable method for assessing free jejunum flap perfusion

Non-Invasive Photoacoustic Imaging of In Vivo Mice with Erythrocyte Derived Optical Nanoparticles to Detect CAD/MI.

Coronary artery disease (CAD) causes mortality and morbidity worldwide. We used near-infrared erythrocyte-derived transducers (NETs), a contrast agent, in combination with a photoacoustic imaging system to identify the locations of atherosclerotic lesions and occlusion due to myocardial-infarction (MI). NETs (≈90 nm diameter) were fabricated from hemoglobin-depleted mice erythrocyte-ghosts and doped with Indocyanine Green (ICG). Ten weeks old male C57BL/6 mice (n = 9) underwent left anterior descending (LAD) coronary artery ligation to mimic vulnerable atherosclerotic plaques and their rupture leading to MI. 150 µL of NETs (20 µM ICG,) was IV injected via tail vein 1-hour prior to photoacoustic (PA) and fluorescence in vivo imaging by exciting NETs at 800 nm and 650 nm, respectively. These results were verified with histochemical analysis. We observed ≈256-fold higher PA signal from the accumulated NETs in the coronary artery above the ligation. Fluorescence signals were detected in LAD coronary, thymus, and liver. Similar signals were observed when the chest was cut open. Atherosclerotic lesions exhibited inflammatory cells. Liver demonstrated normal portal tract, with no parenchymal necrosis, inflammation, fibrosis, or other pathologic changes, suggesting biocompatibility of NETs. Non-invasively detecting atherosclerotic plaques and stenosis using NETs may lay a groundwork for future clinical detection and improving CAD risk assessment

Multiband Patch Antenna for Femtocell Application

A microstrip patch antenna for multiple LTE (long term evaluation) frequency bands for femtocell application is proposed in this paper. Distributed antenna solution (DAS) has been introduced in cellular network to achieve homogenous indoor coverage. Femtocell is the latest extension to these solutions. It is a smart solution to both coverage and capacity scales. Femtocell operation in LTE band is occupied by higher frequency bands. For multiband femtocell application, miniature antenna design is quite essential. The antenna proposed here is composed of basic monopole structure with two parasitic elements at both sides of the active element. A rectangular slot is introduced at the ground plane of the proposed antenna. The antenna is designed using ElnoS HK light CCL substrate material of relative permittivity of 9.4, dielectric loss-tangent of 0.003 and thickness of 3 mm. The S11 response of the antenna is shown to have a bandwidth of 1.01 GHz starting from 1.79 GHz to 2.8 GHz. The characteristics of the antenna are analysed using Ansoft HFSS software

Reviewing Progress, Renewing Commitment: Progress report on the Kampala Declaration and Agenda for Global Action

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Development of a Semielliptical Partial Ground Plane Antenna for RFID and GSM-900

A novel compact broadband patch antenna for UHF (ultrahigh frequency), RFID (radio frequency identification), and GSM-900 (global system for mobile communications) band is shown in this paper. The antenna is composed of an ellipse shape annular ring at the patch. The ground plane of the planar antenna is modified with a semiellipse shape slot. The structure can generate substantial amount of current at the feed-line. The geometry of the antenna is evaluated by using HFSS simulation software and deliberated across the paper. Parametric study is exhibited to delineate the response change of the antenna. The antenna has a physical width of 0.24 λ and length of 0.3 λ. It covers a frequency starting from 0.9 GHz to 1.08 GHz. A fractional bandwidth of 18.2% has been achieved from 0.9 GHz till 1.08 GHz. An average gain of 5.5 dBi is achieved at the resonance frequency. The simulated and measured results have good agreement

Review of Person Re-identification Techniques

Person re-identification across different surveillance cameras with disjoint fields of view has become one of the most interesting and challenging subjects in the area of intelligent video surveillance. Although several methods have been developed and proposed, certain limitations and unresolved issues remain. In all of the existing re-identification approaches, feature vectors are extracted from segmented still images or video frames. Different similarity or dissimilarity measures have been applied to these vectors. Some methods have used simple constant metrics, whereas others have utilised models to obtain optimised metrics. Some have created models based on local colour or texture information, and others have built models based on the gait of people. In general, the main objective of all these approaches is to achieve a higher-accuracy rate and lowercomputational costs. This study summarises several developments in recent literature and discusses the various available methods used in person re-identification. Specifically, their advantages and disadvantages are mentioned and compared.Comment: Published 201