Evaluation of Proteolytic and Chitinolytic Activities of Indigenous Bacillus Species from Crab Shell Waste by Moh Dliyauddin, Tri Ardyati, Suharjono Suharjono

“…Naturally, microorganisms will degrade this waste through fermentation and enzymatic reaction, including protease and chitinase due to its high content of chitin and protein. Bacillus is the most potential bacteria to degrade crab shell waste, and indigenous Bacillus from this waste can increase the degradation rates. …”
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A green and reusable floatable bead-like core-shell photocatalyst with spinel ferrite core and shell consisting of graphitic carbon nitride nanosheet, enhanced by non-noble metal c... by Asma Jami-al-Ahmadi, Mahmood Hajiani, Mohammad Hossein Sayadi

“…This study aims to mitigate these challenges through the fabrication of a novel spherical, floatable magnetic core-shell photocatalyst (NiFe2O4-Sodium Alginate@ SnO2-g-C3N4), using spinel ferrite nanoparticles (NiFe2O4) as the core and SnO2-g-C3N4 catalysts as the shell. …”
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Automatic Control System for Shell and Coil Heat Exchanger with Variable Heat Exchange Surface Area by Sit M.L., Juravleov A.A., Patsiuk V.I., Timchenko D.V.

“…The work is devoted to the temperature control system at the outlet of a shell and coil heat exchanger with a variable heat exchange area, subjected to a change in the surface area by changing the level of the heated coolant in the heat exchanger. …”
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Influence of a Walnut Shell Biochar Additive on the Tribological and Rheological Properties of Vegetable Lubricating Grease by Rafal Kozdrach, Pawel Radulski

“…On the basis of the study of vegetable greases, it was found that the addition of 5% biochar from walnut shells produced during pyrolysis in 500 °C had the most favorable effect on the anti-wear properties of the tested greases, while the 5% biochar from walnuts shell prepared via pyrolysis at 400 °C had the best anti-scuffing protection. …”
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Production and Strength Evaluation of Sandcrete Hollow Blocks Using Fine sand and Crushed Periwinkle shell by Oluwaseun Caleb AYESANMI, Olumide Elkanah AIYEWALEHINMI, Bamitale Dorcas OLUYEMI-AYIBIOWU

“…Walls are fundamental in building construction, with sandcrete blocks being the most common unit in Nigeria. Sandcrete blocks are made of natural sand, water, and cement. …”
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Convection in a Rapidly Rotating Spherical Shell: Newton’s Method Using Implicit Coriolis Integration by Juan Cruz Gonzalez Sembla, Camille Rambert, Fred Feudel, Laurette S. Tuckerman

“…Numerical stability can be greatly improved by the implicit integration of the terms that are most responsible for destabilizing the numerical scheme. …”
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Influence of pyrolysis conditions on the adsorbent properties of hazelnut shell biochar to remove paracetamol, amoxicillin, and triclosan by Paula Madariaga-Segovia, Cristina A. Villamar-Ayala, Norma Ramos, Margarita Sánchez-Domínguez, Roberto Lavín

“…This study optimized the production of biochar from hazelnut shells for the adsorption of paracetamol, amoxicillin, and triclosan from water. …”
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Surface Performance of Titanium Alloy Brake Shell Polished by Industrial Robot Based on Digital Twin by Haijun Zhang, Shengwei Chen, Hui Wang, Yan Qin

“…The titanium alloy brake shell is an important component used in aviation, but its surface polishing is mostly done manually, making it difficult to ensure surface quality and consistency. …”
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LTES with PCM and metal foam in convergent and divergent shell and tube configurations assuming external heat loss by Renato Elpidio Plomitallo, Bernardo Buonomo, Oronzio Manca, Sergio Nardini, Giulia Righetti, Simone Mancin

“…Thermal energy storage (TES) systems have become highly relevant due to the need to cut carbon emissions, and one of the most promising TES systems is the latent heat one (LTES) based on phase change materials (PCMs). …”
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Preliminary Study on the Total Carbon, Organic Carbon Content, and Degradation Rates of Shells in Filter-Feeding Shellfish by Duyu CHEN, Jihong ZHANG, Wei SUN, Yi LIU, Wenguang WU, Xue GONG, Bing LI

“…Filter-feeding shellfish not only achieve long-term carbon sequestration through shell calcification but also significantly impact the marine carbon cycle through their physiological activities and post-mortem degradation processes. …”
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A baenid turtle shell from the Mesaverde Formation (Campanian, Late Cretaceous) of Park County, Wyoming, USA by Wu, Ka Yan, Heuck, Jared, Varriale, Frank J., Farke, Andrew

“…The preserved portions of the carapace are smooth and unornamented, and the overall oval dorsal profile of the shell is similar to taxa such as Neurankylus spp. …”
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Investigation of the effects of walnut shell wood particles on the mechanical properties of injection molded wood‐ polyethylene‐polycarbonate composites by Rasool R. K. Al‐Arkawazi, Taher Azdast, Rezgar Hasanzadeh

“…The findings indicate that 0 wt % PC, 20 wt % walnut shell and the particle size ranging from (1.5 to 1) mm is the most effective compound among all the conditions. …”
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Atomic ionization at annihilation of positrons emitted at β+-decay by S. N. Fedotkin

“…The relative contribution of probabilities of these processes in case of electron emission from different ns-shells (n = 1, 2, 3, 4) is found. It is shown that the most probable process is related to emission of other K-electron.…”
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Acidification, warming, and nutrient management are projected to cause reductions in shell and tissue weights of oysters in a coastal plain estuary by C. R. Czajka, M. A. M. Friedrichs, E. B. Rivest, P. St-Laurent, M. J. Brush, F. Da

“…The resulting reductions in oyster shell and tissue growth will be most severe along the tributary shoals. …”
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Shell Model Reconstruction of Thin-Walled Structures from Point Clouds for Finite Element Modelling of Existing Steel Bridges by Tomoya Nakamizo, Mayuko Nishio

“…There are some studies that show finite element (FE) models from point cloud data. While most of those approaches focus on modelling by solid elements, modelling of some civil structures, such as bridges, requires various uses of beam and shell elements. …”
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Genetic relationship between shell fossils and shale oil: A case study of Jurassic shale reservoir in the northeast Sichuan Basin by Yong Ma, Cheng-yu Yang, Da-hua Li, Hong-wei Zhao, Zhe-jun Pan, Yong-shui Zhou, Dai-duo Zhu, Ning-ning Zhong

“…ABSTRACT: Benthic bivalves, the most widely distributed mollusks since the Mesozoic era, often inhabited environments where their fossilized remains are found adjacent to or intermingled with organic-rich shale. …”
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Production of Water-Soluble Chitosan from Crab Shells (Portunus sp.) by Pressurized Hydrolysis Method as an Active Material for Hand Sanitizer by Niken Dharmayanti, Dessy A Natalia, Aef Permadi, Fera R Dewi, Khamhou Thongsamouth

“…. • The most effective hand sanitizer formulation from crab’s shell water soluble chitosan is HS3 (including 200 mg/ml of water-soluble chitosan), which has a weak inhibition zone of 5.35±0.57 mm for S. aureus bacteria and 4.70±0.07 mm for E. coli.       …”
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DESIGN AND FABRICATION OF AN IMPROVED MOTORIZED MAIZE SHELLER/THRESHING MACHINE by ADEWALE SEDARA, EMMANUEL ODEDIRAN, SETH MANUWA

“… One major essential operation in processing maize is shelling of maize. Maize shelling is one of the most important processing operations carried out in maize processing since it’s among the widely consumed grains all over the world. …”
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Enhanced PCM melting performance in shell and tube latent heat thermal energy storage systems using optimally positioned porous fins by Alireza Jaberi, Siamak Hossainpour

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Optimization of the flow guiding fins configuration and tube arrangements in a shell and tube heat exchanger: coupling response surface methodology and CFD by Xiangmin Shao, Ali Marzban, Farzad Pourfattah, Omid Ali Akbari, Gholamreza Ahmadi, Nafiseh Emami, Soheil Salahshour

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